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diff --git a/camera-app/node_modules/yargs/locales/zh_CN.json b/camera-app/node_modules/yargs/locales/zh_CN.json
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diff --git a/camera-app/node_modules/yargs/package.json b/camera-app/node_modules/yargs/package.json
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diff --git a/camera-app/node_modules/yargs/yargs.js b/camera-app/node_modules/yargs/yargs.js
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diff --git a/camera-app/node_modules/yeast/LICENSE b/camera-app/node_modules/yeast/LICENSE
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diff --git a/camera-app/node_modules/yeast/README.md b/camera-app/node_modules/yeast/README.md
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diff --git a/camera-app/node_modules/yeast/index.js b/camera-app/node_modules/yeast/index.js
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diff --git a/camera-app/node_modules/yeast/package.json b/camera-app/node_modules/yeast/package.json
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diff --git a/camera-app/package-lock.json b/camera-app/package-lock.json
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diff --git a/camera-app/package.json b/camera-app/package.json
old mode 100644
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index 3d97656..f16d66b
--- a/camera-app/package.json
+++ b/camera-app/package.json
@@ -3,6 +3,7 @@
   "version": "1.0.0",
   "description": "",
   "main": "main.js",
+  "project-type": "native-app",
   "scripts": {
     "test": "node main.js",
     "build": "androidjs build"
diff --git a/chat-app/assets/icon/courses-icon-10.png b/chat-app/assets/icon/courses-icon-10.png
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diff --git a/chat-app/assets/icon/ic_launcher.png b/chat-app/assets/icon/ic_launcher.png
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diff --git a/chat-app/assets/icon/icon.png b/chat-app/assets/icon/icon.png
old mode 100644
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diff --git a/chat-app/package.json b/chat-app/package.json
index 3d62641..450693d 100755
--- a/chat-app/package.json
+++ b/chat-app/package.json
@@ -4,7 +4,7 @@
   "package-name": "chatapp",
   "app-name": "Chat App",
   "icon": "./assets/icon/app3.png",
-
+  "project-type": "native-app",
   "version": "1.0.0",
   "description": "",
   "main": "main.js",
diff --git a/helloworld/README.md b/helloworld/README.md
new file mode 100755
index 0000000..4000300
--- /dev/null
+++ b/helloworld/README.md
@@ -0,0 +1,6 @@
+
+## Build
+```bash
+$ androidjs b
+```
+
diff --git a/helloworld/assets/icon/courses-icon-10.png b/helloworld/assets/icon/courses-icon-10.png
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index 0000000..baabb8f
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diff --git a/helloworld/assets/icon/ic_launcher.png b/helloworld/assets/icon/ic_launcher.png
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index 0000000..e33de9c
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diff --git a/helloworld/assets/icon/icon.png b/helloworld/assets/icon/icon.png
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index 0000000..2676dbd
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diff --git a/helloworld/assets/ipc/androidjs.js b/helloworld/assets/ipc/androidjs.js
new file mode 100755
index 0000000..86fcdf1
--- /dev/null
+++ b/helloworld/assets/ipc/androidjs.js
@@ -0,0 +1,289 @@
+
+/*!
+ * Socket.IO v2.2.0
+ * (c) 2014-2018 Guillermo Rauch
+ * Released under the MIT License.
+ */
+!function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):"object"==typeof exports?exports.io=e():t.io=e()}(this,function(){return function(t){function e(r){if(n[r])return n[r].exports;var o=n[r]={exports:{},id:r,loaded:!1};return t[r].call(o.exports,o,o.exports,e),o.loaded=!0,o.exports}var n={};return e.m=t,e.c=n,e.p="",e(0)}([function(t,e,n){"use strict";function r(t,e){"object"===("undefined"==typeof t?"undefined":o(t))&&(e=t,t=void 0),e=e||{};var n,r=i(t),s=r.source,u=r.id,h=r.path,f=p[u]&&h in p[u].nsps,l=e.forceNew||e["force new connection"]||!1===e.multiplex||f;return l?(c("ignoring socket cache for %s",s),n=a(s,e)):(p[u]||(c("new io instance for %s",s),p[u]=a(s,e)),n=p[u]),r.query&&!e.query&&(e.query=r.query),n.socket(r.path,e)}var o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof 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n=/^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/,r=["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"];t.exports=function(t){var e=t,o=t.indexOf("["),i=t.indexOf("]");o!=-1&&i!=-1&&(t=t.substring(0,o)+t.substring(o,i).replace(/:/g,";")+t.substring(i,t.length));for(var s=n.exec(t||""),a={},c=14;c--;)a[r[c]]=s[c]||"";return o!=-1&&i!=-1&&(a.source=e,a.host=a.host.substring(1,a.host.length-1).replace(/;/g,":"),a.authority=a.authority.replace("[","").replace("]","").replace(/;/g,":"),a.ipv6uri=!0),a}},function(t,e,n){(function(r){function o(){return!("undefined"==typeof window||!window.process||"renderer"!==window.process.type)||("undefined"==typeof 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this.query&&(this.query=h.decode(this.query)),this.upgrade=!1!==e.upgrade,this.path=(e.path||"/engine.io").replace(/\/$/,"")+"/",this.forceJSONP=!!e.forceJSONP,this.jsonp=!1!==e.jsonp,this.forceBase64=!!e.forceBase64,this.enablesXDR=!!e.enablesXDR,this.timestampParam=e.timestampParam||"t",this.timestampRequests=e.timestampRequests,this.transports=e.transports||["polling","websocket"],this.transportOptions=e.transportOptions||{},this.readyState="",this.writeBuffer=[],this.prevBufferLen=0,this.policyPort=e.policyPort||843,this.rememberUpgrade=e.rememberUpgrade||!1,this.binaryType=null,this.onlyBinaryUpgrades=e.onlyBinaryUpgrades,this.perMessageDeflate=!1!==e.perMessageDeflate&&(e.perMessageDeflate||{}),!0===this.perMessageDeflate&&(this.perMessageDeflate={}),this.perMessageDeflate&&null==this.perMessageDeflate.threshold&&(this.perMessageDeflate.threshold=1024),this.pfx=e.pfx||null,this.key=e.key||null,this.passphrase=e.passphrase||null,this.cert=e.cert||null,this.ca=e.ca||null,this.ciphers=e.ciphers||null,this.rejectUnauthorized=void 0===e.rejectUnauthorized||e.rejectUnauthorized,this.forceNode=!!e.forceNode,this.isReactNative="undefined"!=typeof navigator&&"string"==typeof navigator.product&&"reactnative"===navigator.product.toLowerCase(),("undefined"==typeof self||this.isReactNative)&&(e.extraHeaders&&Object.keys(e.extraHeaders).length>0&&(this.extraHeaders=e.extraHeaders),e.localAddress&&(this.localAddress=e.localAddress)),this.id=null,this.upgrades=null,this.pingInterval=null,this.pingTimeout=null,this.pingIntervalTimer=null,this.pingTimeoutTimer=null,void this.open()):new r(t,e)}function o(t){var e={};for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n]);return e}var i=n(15),s=n(8),a=n(3)("engine.io-client:socket"),c=n(35),p=n(21),u=n(2),h=n(29);t.exports=r,r.priorWebsocketSuccess=!1,s(r.prototype),r.protocol=p.protocol,r.Socket=r,r.Transport=n(20),r.transports=n(15),r.parser=n(21),r.prototype.createTransport=function(t){a('creating transport "%s"',t);var e=o(this.query);e.EIO=p.protocol,e.transport=t;var n=this.transportOptions[t]||{};this.id&&(e.sid=this.id);var r=new i[t]({query:e,socket:this,agent:n.agent||this.agent,hostname:n.hostname||this.hostname,port:n.port||this.port,secure:n.secure||this.secure,path:n.path||this.path,forceJSONP:n.forceJSONP||this.forceJSONP,jsonp:n.jsonp||this.jsonp,forceBase64:n.forceBase64||this.forceBase64,enablesXDR:n.enablesXDR||this.enablesXDR,timestampRequests:n.timestampRequests||this.timestampRequests,timestampParam:n.timestampParam||this.timestampParam,policyPort:n.policyPort||this.policyPort,pfx:n.pfx||this.pfx,key:n.key||this.key,passphrase:n.passphrase||this.passphrase,cert:n.cert||this.cert,ca:n.ca||this.ca,ciphers:n.ciphers||this.ciphers,rejectUnauthorized:n.rejectUnauthorized||this.rejectUnauthorized,perMessageDeflate:n.perMessageDeflate||this.perMessageDeflate,extraHeaders:n.extraHeaders||this.extraHeaders,forceNode:n.forceNode||this.forceNode,localAddress:n.localAddress||this.localAddress,requestTimeout:n.requestTimeout||this.requestTimeout,protocols:n.protocols||void 0,isReactNative:this.isReactNative});return r},r.prototype.open=function(){var t;if(this.rememberUpgrade&&r.priorWebsocketSuccess&&this.transports.indexOf("websocket")!==-1)t="websocket";else{if(0===this.transports.length){var e=this;return void setTimeout(function(){e.emit("error","No transports available")},0)}t=this.transports[0]}this.readyState="opening";try{t=this.createTransport(t)}catch(n){return this.transports.shift(),void this.open()}t.open(),this.setTransport(t)},r.prototype.setTransport=function(t){a("setting transport %s",t.name);var e=this;this.transport&&(a("clearing existing transport %s",this.transport.name),this.transport.removeAllListeners()),this.transport=t,t.on("drain",function(){e.onDrain()}).on("packet",function(t){e.onPacket(t)}).on("error",function(t){e.onError(t)}).on("close",function(){e.onClose("transport close")})},r.prototype.probe=function(t){function e(){if(f.onlyBinaryUpgrades){var e=!this.supportsBinary&&f.transport.supportsBinary;h=h||e}h||(a('probe transport "%s" opened',t),u.send([{type:"ping",data:"probe"}]),u.once("packet",function(e){if(!h)if("pong"===e.type&&"probe"===e.data){if(a('probe transport "%s" pong',t),f.upgrading=!0,f.emit("upgrading",u),!u)return;r.priorWebsocketSuccess="websocket"===u.name,a('pausing current transport "%s"',f.transport.name),f.transport.pause(function(){h||"closed"!==f.readyState&&(a("changing transport and sending upgrade packet"),p(),f.setTransport(u),u.send([{type:"upgrade"}]),f.emit("upgrade",u),u=null,f.upgrading=!1,f.flush())})}else{a('probe transport "%s" failed',t);var n=new Error("probe error");n.transport=u.name,f.emit("upgradeError",n)}}))}function n(){h||(h=!0,p(),u.close(),u=null)}function o(e){var r=new Error("probe error: "+e);r.transport=u.name,n(),a('probe transport "%s" failed because of error: %s',t,e),f.emit("upgradeError",r)}function i(){o("transport closed")}function s(){o("socket closed")}function c(t){u&&t.name!==u.name&&(a('"%s" works - aborting "%s"',t.name,u.name),n())}function p(){u.removeListener("open",e),u.removeListener("error",o),u.removeListener("close",i),f.removeListener("close",s),f.removeListener("upgrading",c)}a('probing transport "%s"',t);var u=this.createTransport(t,{probe:1}),h=!1,f=this;r.priorWebsocketSuccess=!1,u.once("open",e),u.once("error",o),u.once("close",i),this.once("close",s),this.once("upgrading",c),u.open()},r.prototype.onOpen=function(){if(a("socket open"),this.readyState="open",r.priorWebsocketSuccess="websocket"===this.transport.name,this.emit("open"),this.flush(),"open"===this.readyState&&this.upgrade&&this.transport.pause){a("starting upgrade probes");for(var t=0,e=this.upgrades.length;t<e;t++)this.probe(this.upgrades[t])}},r.prototype.onPacket=function(t){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState)switch(a('socket receive: type "%s", data "%s"',t.type,t.data),this.emit("packet",t),this.emit("heartbeat"),t.type){case"open":this.onHandshake(JSON.parse(t.data));break;case"pong":this.setPing(),this.emit("pong");break;case"error":var e=new Error("server error");e.code=t.data,this.onError(e);break;case"message":this.emit("data",t.data),this.emit("message",t.data)}else a('packet received with socket readyState "%s"',this.readyState)},r.prototype.onHandshake=function(t){this.emit("handshake",t),this.id=t.sid,this.transport.query.sid=t.sid,this.upgrades=this.filterUpgrades(t.upgrades),this.pingInterval=t.pingInterval,this.pingTimeout=t.pingTimeout,this.onOpen(),"closed"!==this.readyState&&(this.setPing(),this.removeListener("heartbeat",this.onHeartbeat),this.on("heartbeat",this.onHeartbeat))},r.prototype.onHeartbeat=function(t){clearTimeout(this.pingTimeoutTimer);var e=this;e.pingTimeoutTimer=setTimeout(function(){"closed"!==e.readyState&&e.onClose("ping timeout")},t||e.pingInterval+e.pingTimeout)},r.prototype.setPing=function(){var t=this;clearTimeout(t.pingIntervalTimer),t.pingIntervalTimer=setTimeout(function(){a("writing ping packet - expecting pong within %sms",t.pingTimeout),t.ping(),t.onHeartbeat(t.pingTimeout)},t.pingInterval)},r.prototype.ping=function(){var t=this;this.sendPacket("ping",function(){t.emit("ping")})},r.prototype.onDrain=function(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,0===this.writeBuffer.length?this.emit("drain"):this.flush()},r.prototype.flush=function(){"closed"!==this.readyState&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length&&(a("flushing %d packets in socket",this.writeBuffer.length),this.transport.send(this.writeBuffer),this.prevBufferLen=this.writeBuffer.length,this.emit("flush"))},r.prototype.write=r.prototype.send=function(t,e,n){return this.sendPacket("message",t,e,n),this},r.prototype.sendPacket=function(t,e,n,r){if("function"==typeof e&&(r=e,e=void 0),"function"==typeof n&&(r=n,n=null),"closing"!==this.readyState&&"closed"!==this.readyState){n=n||{},n.compress=!1!==n.compress;var o={type:t,data:e,options:n};this.emit("packetCreate",o),this.writeBuffer.push(o),r&&this.once("flush",r),this.flush()}},r.prototype.close=function(){function t(){r.onClose("forced close"),a("socket closing - telling transport to close"),r.transport.close()}function e(){r.removeListener("upgrade",e),r.removeListener("upgradeError",e),t()}function n(){r.once("upgrade",e),r.once("upgradeError",e)}if("opening"===this.readyState||"open"===this.readyState){this.readyState="closing";var r=this;this.writeBuffer.length?this.once("drain",function(){this.upgrading?n():t()}):this.upgrading?n():t()}return this},r.prototype.onError=function(t){a("socket error %j",t),r.priorWebsocketSuccess=!1,this.emit("error",t),this.onClose("transport error",t)},r.prototype.onClose=function(t,e){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState){a('socket close with reason: "%s"',t);var n=this;clearTimeout(this.pingIntervalTimer),clearTimeout(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),this.readyState="closed",this.id=null,this.emit("close",t,e),n.writeBuffer=[],n.prevBufferLen=0}},r.prototype.filterUpgrades=function(t){for(var e=[],n=0,r=t.length;n<r;n++)~c(this.transports,t[n])&&e.push(t[n]);return e}},function(t,e,n){function r(t){var e,n=!1,r=!1,a=!1!==t.jsonp;
+if("undefined"!=typeof location){var c="https:"===location.protocol,p=location.port;p||(p=c?443:80),n=t.hostname!==location.hostname||p!==t.port,r=t.secure!==c}if(t.xdomain=n,t.xscheme=r,e=new o(t),"open"in e&&!t.forceJSONP)return new i(t);if(!a)throw new Error("JSONP disabled");return new s(t)}var o=n(16),i=n(18),s=n(32),a=n(33);e.polling=r,e.websocket=a},function(t,e,n){var r=n(17);t.exports=function(t){var e=t.xdomain,n=t.xscheme,o=t.enablesXDR;try{if("undefined"!=typeof XMLHttpRequest&&(!e||r))return new XMLHttpRequest}catch(i){}try{if("undefined"!=typeof XDomainRequest&&!n&&o)return new XDomainRequest}catch(i){}if(!e)try{return new(self[["Active"].concat("Object").join("X")])("Microsoft.XMLHTTP")}catch(i){}}},function(t,e){try{t.exports="undefined"!=typeof XMLHttpRequest&&"withCredentials"in new XMLHttpRequest}catch(n){t.exports=!1}},function(t,e,n){function r(){}function o(t){if(c.call(this,t),this.requestTimeout=t.requestTimeout,this.extraHeaders=t.extraHeaders,"undefined"!=typeof location){var e="https:"===location.protocol,n=location.port;n||(n=e?443:80),this.xd="undefined"!=typeof location&&t.hostname!==location.hostname||n!==t.port,this.xs=t.secure!==e}}function i(t){this.method=t.method||"GET",this.uri=t.uri,this.xd=!!t.xd,this.xs=!!t.xs,this.async=!1!==t.async,this.data=void 0!==t.data?t.data:null,this.agent=t.agent,this.isBinary=t.isBinary,this.supportsBinary=t.supportsBinary,this.enablesXDR=t.enablesXDR,this.requestTimeout=t.requestTimeout,this.pfx=t.pfx,this.key=t.key,this.passphrase=t.passphrase,this.cert=t.cert,this.ca=t.ca,this.ciphers=t.ciphers,this.rejectUnauthorized=t.rejectUnauthorized,this.extraHeaders=t.extraHeaders,this.create()}function s(){for(var t in i.requests)i.requests.hasOwnProperty(t)&&i.requests[t].abort()}var a=n(16),c=n(19),p=n(8),u=n(30),h=n(3)("engine.io-client:polling-xhr");if(t.exports=o,t.exports.Request=i,u(o,c),o.prototype.supportsBinary=!0,o.prototype.request=function(t){return t=t||{},t.uri=this.uri(),t.xd=this.xd,t.xs=this.xs,t.agent=this.agent||!1,t.supportsBinary=this.supportsBinary,t.enablesXDR=this.enablesXDR,t.pfx=this.pfx,t.key=this.key,t.passphrase=this.passphrase,t.cert=this.cert,t.ca=this.ca,t.ciphers=this.ciphers,t.rejectUnauthorized=this.rejectUnauthorized,t.requestTimeout=this.requestTimeout,t.extraHeaders=this.extraHeaders,new i(t)},o.prototype.doWrite=function(t,e){var n="string"!=typeof t&&void 0!==t,r=this.request({method:"POST",data:t,isBinary:n}),o=this;r.on("success",e),r.on("error",function(t){o.onError("xhr post error",t)}),this.sendXhr=r},o.prototype.doPoll=function(){h("xhr poll");var t=this.request(),e=this;t.on("data",function(t){e.onData(t)}),t.on("error",function(t){e.onError("xhr poll error",t)}),this.pollXhr=t},p(i.prototype),i.prototype.create=function(){var t={agent:this.agent,xdomain:this.xd,xscheme:this.xs,enablesXDR:this.enablesXDR};t.pfx=this.pfx,t.key=this.key,t.passphrase=this.passphrase,t.cert=this.cert,t.ca=this.ca,t.ciphers=this.ciphers,t.rejectUnauthorized=this.rejectUnauthorized;var e=this.xhr=new a(t),n=this;try{h("xhr open %s: %s",this.method,this.uri),e.open(this.method,this.uri,this.async);try{if(this.extraHeaders){e.setDisableHeaderCheck&&e.setDisableHeaderCheck(!0);for(var r in this.extraHeaders)this.extraHeaders.hasOwnProperty(r)&&e.setRequestHeader(r,this.extraHeaders[r])}}catch(o){}if("POST"===this.method)try{this.isBinary?e.setRequestHeader("Content-type","application/octet-stream"):e.setRequestHeader("Content-type","text/plain;charset=UTF-8")}catch(o){}try{e.setRequestHeader("Accept","*/*")}catch(o){}"withCredentials"in e&&(e.withCredentials=!0),this.requestTimeout&&(e.timeout=this.requestTimeout),this.hasXDR()?(e.onload=function(){n.onLoad()},e.onerror=function(){n.onError(e.responseText)}):e.onreadystatechange=function(){if(2===e.readyState)try{var t=e.getResponseHeader("Content-Type");n.supportsBinary&&"application/octet-stream"===t&&(e.responseType="arraybuffer")}catch(r){}4===e.readyState&&(200===e.status||1223===e.status?n.onLoad():setTimeout(function(){n.onError(e.status)},0))},h("xhr data %s",this.data),e.send(this.data)}catch(o){return void setTimeout(function(){n.onError(o)},0)}"undefined"!=typeof document&&(this.index=i.requestsCount++,i.requests[this.index]=this)},i.prototype.onSuccess=function(){this.emit("success"),this.cleanup()},i.prototype.onData=function(t){this.emit("data",t),this.onSuccess()},i.prototype.onError=function(t){this.emit("error",t),this.cleanup(!0)},i.prototype.cleanup=function(t){if("undefined"!=typeof this.xhr&&null!==this.xhr){if(this.hasXDR()?this.xhr.onload=this.xhr.onerror=r:this.xhr.onreadystatechange=r,t)try{this.xhr.abort()}catch(e){}"undefined"!=typeof document&&delete i.requests[this.index],this.xhr=null}},i.prototype.onLoad=function(){var t;try{var e;try{e=this.xhr.getResponseHeader("Content-Type")}catch(n){}t="application/octet-stream"===e?this.xhr.response||this.xhr.responseText:this.xhr.responseText}catch(n){this.onError(n)}null!=t&&this.onData(t)},i.prototype.hasXDR=function(){return"undefined"!=typeof XDomainRequest&&!this.xs&&this.enablesXDR},i.prototype.abort=function(){this.cleanup()},i.requestsCount=0,i.requests={},"undefined"!=typeof document)if("function"==typeof attachEvent)attachEvent("onunload",s);else if("function"==typeof addEventListener){var f="onpagehide"in self?"pagehide":"unload";addEventListener(f,s,!1)}},function(t,e,n){function r(t){var e=t&&t.forceBase64;u&&!e||(this.supportsBinary=!1),o.call(this,t)}var o=n(20),i=n(29),s=n(21),a=n(30),c=n(31),p=n(3)("engine.io-client:polling");t.exports=r;var u=function(){var t=n(16),e=new t({xdomain:!1});return null!=e.responseType}();a(r,o),r.prototype.name="polling",r.prototype.doOpen=function(){this.poll()},r.prototype.pause=function(t){function e(){p("paused"),n.readyState="paused",t()}var n=this;if(this.readyState="pausing",this.polling||!this.writable){var r=0;this.polling&&(p("we are currently polling - waiting to pause"),r++,this.once("pollComplete",function(){p("pre-pause polling complete"),--r||e()})),this.writable||(p("we are currently writing - waiting to pause"),r++,this.once("drain",function(){p("pre-pause writing complete"),--r||e()}))}else e()},r.prototype.poll=function(){p("polling"),this.polling=!0,this.doPoll(),this.emit("poll")},r.prototype.onData=function(t){var e=this;p("polling got data %s",t);var n=function(t,n,r){return"opening"===e.readyState&&e.onOpen(),"close"===t.type?(e.onClose(),!1):void e.onPacket(t)};s.decodePayload(t,this.socket.binaryType,n),"closed"!==this.readyState&&(this.polling=!1,this.emit("pollComplete"),"open"===this.readyState?this.poll():p('ignoring poll - transport state "%s"',this.readyState))},r.prototype.doClose=function(){function t(){p("writing close packet"),e.write([{type:"close"}])}var e=this;"open"===this.readyState?(p("transport open - closing"),t()):(p("transport not open - deferring close"),this.once("open",t))},r.prototype.write=function(t){var e=this;this.writable=!1;var n=function(){e.writable=!0,e.emit("drain")};s.encodePayload(t,this.supportsBinary,function(t){e.doWrite(t,n)})},r.prototype.uri=function(){var t=this.query||{},e=this.secure?"https":"http",n="";!1!==this.timestampRequests&&(t[this.timestampParam]=c()),this.supportsBinary||t.sid||(t.b64=1),t=i.encode(t),this.port&&("https"===e&&443!==Number(this.port)||"http"===e&&80!==Number(this.port))&&(n=":"+this.port),t.length&&(t="?"+t);var r=this.hostname.indexOf(":")!==-1;return e+"://"+(r?"["+this.hostname+"]":this.hostname)+n+this.path+t}},function(t,e,n){function r(t){this.path=t.path,this.hostname=t.hostname,this.port=t.port,this.secure=t.secure,this.query=t.query,this.timestampParam=t.timestampParam,this.timestampRequests=t.timestampRequests,this.readyState="",this.agent=t.agent||!1,this.socket=t.socket,this.enablesXDR=t.enablesXDR,this.pfx=t.pfx,this.key=t.key,this.passphrase=t.passphrase,this.cert=t.cert,this.ca=t.ca,this.ciphers=t.ciphers,this.rejectUnauthorized=t.rejectUnauthorized,this.forceNode=t.forceNode,this.isReactNative=t.isReactNative,this.extraHeaders=t.extraHeaders,this.localAddress=t.localAddress}var o=n(21),i=n(8);t.exports=r,i(r.prototype),r.prototype.onError=function(t,e){var n=new Error(t);return 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t=this.query||{},e=this.secure?"wss":"ws",n="";this.port&&("wss"===e&&443!==Number(this.port)||"ws"===e&&80!==Number(this.port))&&(n=":"+this.port),this.timestampRequests&&(t[this.timestampParam]=u()),this.supportsBinary||(t.b64=1),t=c.encode(t),t.length&&(t="?"+t);var r=this.hostname.indexOf(":")!==-1;return e+"://"+(r?"["+this.hostname+"]":this.hostname)+n+this.path+t},r.prototype.check=function(){return!(!l||"__initialize"in l&&this.name===r.prototype.name)}},function(t,e){},function(t,e){var n=[].indexOf;t.exports=function(t,e){if(n)return t.indexOf(e);for(var r=0;r<t.length;++r)if(t[r]===e)return r;return-1}},function(t,e,n){"use strict";function r(t,e,n){this.io=t,this.nsp=e,this.json=this,this.ids=0,this.acks={},this.receiveBuffer=[],this.sendBuffer=[],this.connected=!1,this.disconnected=!0,this.flags={},n&&n.query&&(this.query=n.query),this.io.autoConnect&&this.open()}var o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},i=n(7),s=n(8),a=n(37),c=n(38),p=n(39),u=n(3)("socket.io-client:socket"),h=n(29),f=n(23);t.exports=e=r;var l={connect:1,connect_error:1,connect_timeout:1,connecting:1,disconnect:1,error:1,reconnect:1,reconnect_attempt:1,reconnect_failed:1,reconnect_error:1,reconnecting:1,ping:1,pong:1},d=s.prototype.emit;s(r.prototype),r.prototype.subEvents=function(){if(!this.subs){var t=this.io;this.subs=[c(t,"open",p(this,"onopen")),c(t,"packet",p(this,"onpacket")),c(t,"close",p(this,"onclose"))]}},r.prototype.open=r.prototype.connect=function(){return this.connected?this:(this.subEvents(),this.io.open(),"open"===this.io.readyState&&this.onopen(),this.emit("connecting"),this)},r.prototype.send=function(){var t=a(arguments);return t.unshift("message"),this.emit.apply(this,t),this},r.prototype.emit=function(t){if(l.hasOwnProperty(t))return d.apply(this,arguments),this;var e=a(arguments),n={type:(void 0!==this.flags.binary?this.flags.binary:f(e))?i.BINARY_EVENT:i.EVENT,data:e};return n.options={},n.options.compress=!this.flags||!1!==this.flags.compress,"function"==typeof e[e.length-1]&&(u("emitting packet with ack id %d",this.ids),this.acks[this.ids]=e.pop(),n.id=this.ids++),this.connected?this.packet(n):this.sendBuffer.push(n),this.flags={},this},r.prototype.packet=function(t){t.nsp=this.nsp,this.io.packet(t)},r.prototype.onopen=function(){if(u("transport is open - connecting"),"/"!==this.nsp)if(this.query){var t="object"===o(this.query)?h.encode(this.query):this.query;u("sending connect packet with query %s",t),this.packet({type:i.CONNECT,query:t})}else this.packet({type:i.CONNECT})},r.prototype.onclose=function(t){u("close (%s)",t),this.connected=!1,this.disconnected=!0,delete this.id,this.emit("disconnect",t)},r.prototype.onpacket=function(t){var e=t.nsp===this.nsp,n=t.type===i.ERROR&&"/"===t.nsp;if(e||n)switch(t.type){case i.CONNECT:this.onconnect();break;case i.EVENT:this.onevent(t);break;case i.BINARY_EVENT:this.onevent(t);break;case i.ACK:this.onack(t);break;case i.BINARY_ACK:this.onack(t);break;case i.DISCONNECT:this.ondisconnect();break;case i.ERROR:this.emit("error",t.data)}},r.prototype.onevent=function(t){var e=t.data||[];u("emitting event %j",e),null!=t.id&&(u("attaching ack callback to event"),e.push(this.ack(t.id))),this.connected?d.apply(this,e):this.receiveBuffer.push(e)},r.prototype.ack=function(t){var e=this,n=!1;return function(){if(!n){n=!0;var r=a(arguments);u("sending ack %j",r),e.packet({type:f(r)?i.BINARY_ACK:i.ACK,id:t,data:r})}}},r.prototype.onack=function(t){var e=this.acks[t.id];"function"==typeof e?(u("calling ack %s with %j",t.id,t.data),e.apply(this,t.data),delete this.acks[t.id]):u("bad ack %s",t.id)},r.prototype.onconnect=function(){this.connected=!0,this.disconnected=!1,this.emit("connect"),this.emitBuffered()},r.prototype.emitBuffered=function(){var t;for(t=0;t<this.receiveBuffer.length;t++)d.apply(this,this.receiveBuffer[t]);for(this.receiveBuffer=[],t=0;t<this.sendBuffer.length;t++)this.packet(this.sendBuffer[t]);this.sendBuffer=[]},r.prototype.ondisconnect=function(){u("server disconnect (%s)",this.nsp),this.destroy(),this.onclose("io server disconnect")},r.prototype.destroy=function(){if(this.subs){for(var t=0;t<this.subs.length;t++)this.subs[t].destroy();this.subs=null}this.io.destroy(this)},r.prototype.close=r.prototype.disconnect=function(){return this.connected&&(u("performing disconnect (%s)",this.nsp),this.packet({type:i.DISCONNECT})),this.destroy(),this.connected&&this.onclose("io client disconnect"),this},r.prototype.compress=function(t){return this.flags.compress=t,this},r.prototype.binary=function(t){return this.flags.binary=t,this}},function(t,e){function n(t,e){var n=[];e=e||0;for(var r=e||0;r<t.length;r++)n[r-e]=t[r];return n}t.exports=n},function(t,e){"use strict";function n(t,e,n){return t.on(e,n),{destroy:function(){t.removeListener(e,n)}}}t.exports=n},function(t,e){var n=[].slice;t.exports=function(t,e){if("string"==typeof e&&(e=t[e]),"function"!=typeof e)throw new Error("bind() requires a function");var r=n.call(arguments,2);return function(){return e.apply(t,r.concat(n.call(arguments)))}}},function(t,e){function n(t){t=t||{},this.ms=t.min||100,this.max=t.max||1e4,this.factor=t.factor||2,this.jitter=t.jitter>0&&t.jitter<=1?t.jitter:0,this.attempts=0}t.exports=n,n.prototype.duration=function(){var t=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),n=Math.floor(e*this.jitter*t);t=0==(1&Math.floor(10*e))?t-n:t+n}return 0|Math.min(t,this.max)},n.prototype.reset=function(){this.attempts=0},n.prototype.setMin=function(t){this.ms=t},n.prototype.setMax=function(t){this.max=t},n.prototype.setJitter=function(t){this.jitter=t}}])});
+//# sourceMappingURL=socket.io.js.map
+
+
+// document.write('<script src = "node_modules/socket.io/index.js"></script>');
+
+
+var socket = io('http://localhost:3000');
+listeners = {}
+var front = {
+    send:send,
+    on:on,
+    sendSync:sendSync
+}
+
+function addListener(event, fn) {
+    listeners[event] = listeners[event] || [];
+    listeners[event].push(fn);
+}
+
+function on(event, fn){
+    addListener(event, fn);
+}
+
+function exeFunction(event, ...args){
+    let fns = listeners[event];
+    if (!fns) return false;
+    fns.forEach(function (f) {
+      f(...args);
+    });
+    return true;
+}
+
+
+function send(event, ...args){
+    // console.log('called send');
+    socket.emit('response-from-front', event, ...args)
+}
+
+socket.on('response-from-back', function(event, ...args){
+    // console.log('reposen sync')
+    exeFunction(event, ...args);
+})
+
+socket.on('sync-response', function(eventName, res){
+    // console.log('sync-reponse')
+    // console.log(eventName);
+    exeFunction(eventName + "-result", res);
+})
+
+function sendSync(event, ...args){
+    socket.emit('sync-response-from-front', event, ...args);
+}
+
+var app = {}
+
+/**
+  * Camera API
+ */
+
+var camera = {
+    init : initCamera,
+    startRecording: startVideoRecording,
+    stopRecording: stopVideoRecording,
+    saveRecording: saveVideoRecording,
+    previewRecording: previewVideoRecordingIntoDom,
+    getDevices : getVideoDevices,
+    getBuffer: getCameraRecordedBuffer,
+    takePhoto: takePhoto,
+    savePhoto: saveCameraPhoto,
+    recordedBlobs : [],
+    mediaRecorder: null,
+    canvas : document.createElement('canvas')
+}
+
+function initCamera(dom, constraints){
+    if(window.videoStream != undefined){
+        stopMediaTracks(window.videoStream);
+    }
+    navigator.getUserMedia(constraints, function(stream){
+        window.videoStream = stream;
+        dom.srcObject = stream;
+    }, function(error){
+        console.log(error);
+        throw error;
+    })
+}
+
+function handleCameraDataAvailable(event) {
+    if (event.data && event.data.size > 0) {
+      camera.recordedBlobs.push(event.data);
+    }
+}
+
+function startVideoRecording(options){
+    camera.recordedBlobs = [];
+    try {
+        camera.mediaRecorder = new MediaRecorder(window.videoStream, options);
+      } catch (e0) {
+        console.log('Unable to create MediaRecorder with options Object: ', options, e0);
+        try {
+          options = {mimeType: 'video/webm;codecs=vp8', bitsPerSecond: 100000};
+          camera.mediaRecorder = new MediaRecorder(window.videoStream, options);
+        } catch (e1) {
+          console.log('Unable to create MediaRecorder with options Object: ', options, e1);
+          try {
+            options = 'video/mp4';
+            camera.mediaRecorder = new MediaRecorder(window.videoStream, options);
+          } catch (e2) {
+            alert('MediaRecorder is not supported by this browser.');
+            console.error('Exception while creating MediaRecorder:', e2);
+            return;
+          }
+        }
+    }
+    // mediaRecorder.onstop = handleStop;
+    camera.mediaRecorder.ondataavailable = handleCameraDataAvailable;
+    camera.mediaRecorder.start(); // collect 10ms of data
+}
+
+function stopVideoRecording(){
+    camera.mediaRecorder.stop();
+}
+
+function saveVideoRecording(filepath, filename, options){
+    let blob = new Blob(camera.recordedBlobs, options);
+    saveCameraBlob(filepath, filename, blob);
+}
+
+function previewVideoRecordingIntoDom(dom, options){
+    dom.controls = true;
+    let superBuffer = new Blob(camera.recordedBlobs, options);
+    dom.src = window.URL.createObjectURL(superBuffer);
+}
+
+function saveCameraBlob(filepath, filename, blob){
+    let reader = new FileReader()
+    reader.onload = function() {
+        if (reader.readyState == 2) {
+            send('androidjs:saveBlob', filepath, filename, reader.result, 'video');
+            console.log(`Saving ${JSON.stringify({ filename, size: blob.size })}`)
+        }
+    }
+    reader.readAsArrayBuffer(blob)
+}
+
+function getVideoDevices(callback){
+    let devices = []
+    navigator.mediaDevices.enumerateDevices()
+        .then(function(mediaDevices){
+            for(let i = 0; i < mediaDevices.length; i++){
+                if(mediaDevices[i].kind === 'videoinput'){
+                    devices.push(mediaDevices[i].deviceId);
+                }
+            }
+            callback(devices);
+        });
+}
+
+function stopMediaTracks(stream) {
+    stream.getTracks().forEach(track => {
+        track.stop();
+    });
+}
+
+function getCameraRecordedBuffer(options, callback){
+    let blob = new Blob(camera.recordedBlobs, options);
+    let reader = new FileReader()
+    reader.onload = function() {
+        if (reader.readyState == 2) {
+            callback(reader.result);
+        }
+    }
+    reader.readAsArrayBuffer(blob)
+}
+
+function takePhoto(cameraDom, previewDom){
+    camera.canvas.width = cameraDom.videoWidth;
+    camera.canvas.height = cameraDom.videoHeight;
+    camera.canvas.getContext('2d').drawImage(cameraDom, 0, 0);
+    if(previewDom != undefined){
+        previewDom.src = camera.canvas.toDataURL('image/webp');
+    }
+}
+
+function saveCameraPhoto(filepath, filename){
+    let data = camera.canvas.toDataURL('image/webp').replace(/^data:image\/\w+;base64,/, "");
+    send('androidjs:saveBlob', filepath, filename, data, 'image');
+    console.log('saving file...');
+}
+
+app.camera = camera;
+
+
+/**
+  * Microphone API
+ */
+
+ microphone = {
+     startRecording: startAudioRecording,
+     getDevices: getAudioDevices,
+     stopRecording: stopAudioRecording,
+     previewRecording: previewAudioRecording,
+     saveRecording: saveAudioRecording,
+     getBuffer: getAudioRecordedBuffer,
+     recordedBlobs: [],
+     mediaRecorder: null
+ }
+
+ function handleAudioDataAvailable(event){
+    if (event.data && event.data.size > 0) {
+        microphone.recordedBlobs.push(event.data);
+      }
+ }
+
+ function startAudioRecording(options){
+    if(window.audioStream != undefined){
+        stopMediaTracks(window.audioStream);
+    }
+    navigator.getUserMedia(options, function(stream){
+        window.audioStream = stream;
+        microphone.mediaRecorder = new MediaRecorder(window.audioStream);
+        microphone.mediaRecorder.ondataavailable = handleAudioDataAvailable;
+        microphone.mediaRecorder.start();
+    }, function(error){
+        console.log(error);
+        throw error;
+    });
+ }
+
+ function stopAudioRecording(){
+     microphone.mediaRecorder.stop();
+ }
+
+ function previewAudioRecording(dom, options){
+     dom.controls = true;
+     let blob = new Blob(microphone.recordedBlobs, options);
+     dom.src = URL.createObjectURL(blob);
+ }
+
+ function saveAudioRecording(filepath, filename, options){
+    let blob = new Blob(microphone.recordedBlobs, options);
+    saveAudioBlob(filepath, filename, blob);
+ }
+
+ function saveAudioBlob(filepath, filename, blob){
+    let reader = new FileReader()
+    reader.onload = function() {
+        if (reader.readyState == 2) {
+            send('androidjs:saveBlob', filepath, filename, reader.result, 'audio');
+            console.log(`Saving ${JSON.stringify({ filename, size: blob.size })}`)
+        }
+    }
+    reader.readAsArrayBuffer(blob);
+ }
+
+ function getAudioRecordedBuffer(options, callback){
+     let blob = new Blob(microphone.recordedBlobs, options);
+     let reader = new FileReader();
+     reader.onload = function(){
+         if(reader.readyState == 2){
+             callback(reader.result);
+         }
+     }
+     reader.readAsArrayBuffer(blob);
+ }
+
+ function getAudioDevices(callback){
+    let devices = [];
+    navigator.mediaDevices.enumerateDevices()
+        .then(function(mediaDevices){
+            for(let i = 0; i < mediaDevices.length; i++){
+                if(mediaDevices[i].kind == 'audioinput'){
+                    devices.push(mediaDevices[i].deviceId);
+                }
+            }
+            callback(devices);
+        });
+ }
+
+ app.microphone = microphone;
\ No newline at end of file
diff --git a/helloworld/main.js b/helloworld/main.js
new file mode 100755
index 0000000..e69de29
diff --git a/helloworld/node_modules/@sindresorhus/is/dist/index.d.ts b/helloworld/node_modules/@sindresorhus/is/dist/index.d.ts
new file mode 100755
index 0000000..e94d30b
--- /dev/null
+++ b/helloworld/node_modules/@sindresorhus/is/dist/index.d.ts
@@ -0,0 +1,132 @@
+/// <reference types="node" />
+/// <reference lib="es2016" />
+/// <reference lib="es2017.sharedmemory" />
+/// <reference lib="esnext.asynciterable" />
+/// <reference lib="dom" />
+declare type TypedArray = Int8Array | Uint8Array | Uint8ClampedArray | Int16Array | Uint16Array | Int32Array | Uint32Array | Float32Array | Float64Array;
+declare type Primitive = null | undefined | string | number | boolean | Symbol;
+export interface ArrayLike {
+    length: number;
+}
+export interface Class<T = unknown> {
+    new (...args: any[]): T;
+}
+declare type DomElement = object & {
+    nodeType: 1;
+    nodeName: string;
+};
+declare type NodeStream = object & {
+    pipe: Function;
+};
+export declare const enum TypeName {
+    null = "null",
+    boolean = "boolean",
+    undefined = "undefined",
+    string = "string",
+    number = "number",
+    symbol = "symbol",
+    Function = "Function",
+    GeneratorFunction = "GeneratorFunction",
+    AsyncFunction = "AsyncFunction",
+    Observable = "Observable",
+    Array = "Array",
+    Buffer = "Buffer",
+    Object = "Object",
+    RegExp = "RegExp",
+    Date = "Date",
+    Error = "Error",
+    Map = "Map",
+    Set = "Set",
+    WeakMap = "WeakMap",
+    WeakSet = "WeakSet",
+    Int8Array = "Int8Array",
+    Uint8Array = "Uint8Array",
+    Uint8ClampedArray = "Uint8ClampedArray",
+    Int16Array = "Int16Array",
+    Uint16Array = "Uint16Array",
+    Int32Array = "Int32Array",
+    Uint32Array = "Uint32Array",
+    Float32Array = "Float32Array",
+    Float64Array = "Float64Array",
+    ArrayBuffer = "ArrayBuffer",
+    SharedArrayBuffer = "SharedArrayBuffer",
+    DataView = "DataView",
+    Promise = "Promise",
+    URL = "URL"
+}
+declare function is(value: unknown): TypeName;
+declare namespace is {
+    const undefined: (value: unknown) => value is undefined;
+    const string: (value: unknown) => value is string;
+    const number: (value: unknown) => value is number;
+    const function_: (value: unknown) => value is Function;
+    const null_: (value: unknown) => value is null;
+    const class_: (value: unknown) => value is Class<unknown>;
+    const boolean: (value: unknown) => value is boolean;
+    const symbol: (value: unknown) => value is Symbol;
+    const numericString: (value: unknown) => boolean;
+    const array: (arg: any) => arg is any[];
+    const buffer: (input: unknown) => input is Buffer;
+    const nullOrUndefined: (value: unknown) => value is null | undefined;
+    const object: (value: unknown) => value is object;
+    const iterable: (value: unknown) => value is IterableIterator<unknown>;
+    const asyncIterable: (value: unknown) => value is AsyncIterableIterator<unknown>;
+    const generator: (value: unknown) => value is Generator;
+    const nativePromise: (value: unknown) => value is Promise<unknown>;
+    const promise: (value: unknown) => value is Promise<unknown>;
+    const generatorFunction: (value: unknown) => value is GeneratorFunction;
+    const asyncFunction: (value: unknown) => value is Function;
+    const boundFunction: (value: unknown) => value is Function;
+    const regExp: (value: unknown) => value is RegExp;
+    const date: (value: unknown) => value is Date;
+    const error: (value: unknown) => value is Error;
+    const map: (value: unknown) => value is Map<unknown, unknown>;
+    const set: (value: unknown) => value is Set<unknown>;
+    const weakMap: (value: unknown) => value is WeakMap<object, unknown>;
+    const weakSet: (value: unknown) => value is WeakSet<object>;
+    const int8Array: (value: unknown) => value is Int8Array;
+    const uint8Array: (value: unknown) => value is Uint8Array;
+    const uint8ClampedArray: (value: unknown) => value is Uint8ClampedArray;
+    const int16Array: (value: unknown) => value is Int16Array;
+    const uint16Array: (value: unknown) => value is Uint16Array;
+    const int32Array: (value: unknown) => value is Int32Array;
+    const uint32Array: (value: unknown) => value is Uint32Array;
+    const float32Array: (value: unknown) => value is Float32Array;
+    const float64Array: (value: unknown) => value is Float64Array;
+    const arrayBuffer: (value: unknown) => value is ArrayBuffer;
+    const sharedArrayBuffer: (value: unknown) => value is SharedArrayBuffer;
+    const dataView: (value: unknown) => value is DataView;
+    const directInstanceOf: <T>(instance: unknown, klass: Class<T>) => instance is T;
+    const urlInstance: (value: unknown) => value is URL;
+    const urlString: (value: unknown) => boolean;
+    const truthy: (value: unknown) => boolean;
+    const falsy: (value: unknown) => boolean;
+    const nan: (value: unknown) => boolean;
+    const primitive: (value: unknown) => value is Primitive;
+    const integer: (value: unknown) => value is number;
+    const safeInteger: (value: unknown) => value is number;
+    const plainObject: (value: unknown) => boolean;
+    const typedArray: (value: unknown) => value is TypedArray;
+    const arrayLike: (value: unknown) => value is ArrayLike;
+    const inRange: (value: number, range: number | number[]) => boolean;
+    const domElement: (value: unknown) => value is DomElement;
+    const observable: (value: unknown) => boolean;
+    const nodeStream: (value: unknown) => value is NodeStream;
+    const infinite: (value: unknown) => boolean;
+    const even: (value: number) => boolean;
+    const odd: (value: number) => boolean;
+    const emptyArray: (value: unknown) => boolean;
+    const nonEmptyArray: (value: unknown) => boolean;
+    const emptyString: (value: unknown) => boolean;
+    const nonEmptyString: (value: unknown) => boolean;
+    const emptyStringOrWhitespace: (value: unknown) => boolean;
+    const emptyObject: (value: unknown) => boolean;
+    const nonEmptyObject: (value: unknown) => boolean;
+    const emptySet: (value: unknown) => boolean;
+    const nonEmptySet: (value: unknown) => boolean;
+    const emptyMap: (value: unknown) => boolean;
+    const nonEmptyMap: (value: unknown) => boolean;
+    const any: (predicate: unknown, ...values: unknown[]) => boolean;
+    const all: (predicate: unknown, ...values: unknown[]) => boolean;
+}
+export default is;
diff --git a/helloworld/node_modules/@sindresorhus/is/dist/index.js b/helloworld/node_modules/@sindresorhus/is/dist/index.js
new file mode 100755
index 0000000..3cbafae
--- /dev/null
+++ b/helloworld/node_modules/@sindresorhus/is/dist/index.js
@@ -0,0 +1,245 @@
+"use strict";
+/// <reference lib="es2016"/>
+/// <reference lib="es2017.sharedmemory"/>
+/// <reference lib="esnext.asynciterable"/>
+/// <reference lib="dom"/>
+Object.defineProperty(exports, "__esModule", { value: true });
+// TODO: Use the `URL` global when targeting Node.js 10
+// tslint:disable-next-line
+const URLGlobal = typeof URL === 'undefined' ? require('url').URL : URL;
+const toString = Object.prototype.toString;
+const isOfType = (type) => (value) => typeof value === type;
+const isBuffer = (input) => !is.nullOrUndefined(input) && !is.nullOrUndefined(input.constructor) && is.function_(input.constructor.isBuffer) && input.constructor.isBuffer(input);
+const getObjectType = (value) => {
+    const objectName = toString.call(value).slice(8, -1);
+    if (objectName) {
+        return objectName;
+    }
+    return null;
+};
+const isObjectOfType = (type) => (value) => getObjectType(value) === type;
+function is(value) {
+    switch (value) {
+        case null:
+            return "null" /* null */;
+        case true:
+        case false:
+            return "boolean" /* boolean */;
+        default:
+    }
+    switch (typeof value) {
+        case 'undefined':
+            return "undefined" /* undefined */;
+        case 'string':
+            return "string" /* string */;
+        case 'number':
+            return "number" /* number */;
+        case 'symbol':
+            return "symbol" /* symbol */;
+        default:
+    }
+    if (is.function_(value)) {
+        return "Function" /* Function */;
+    }
+    if (is.observable(value)) {
+        return "Observable" /* Observable */;
+    }
+    if (Array.isArray(value)) {
+        return "Array" /* Array */;
+    }
+    if (isBuffer(value)) {
+        return "Buffer" /* Buffer */;
+    }
+    const tagType = getObjectType(value);
+    if (tagType) {
+        return tagType;
+    }
+    if (value instanceof String || value instanceof Boolean || value instanceof Number) {
+        throw new TypeError('Please don\'t use object wrappers for primitive types');
+    }
+    return "Object" /* Object */;
+}
+(function (is) {
+    // tslint:disable-next-line:strict-type-predicates
+    const isObject = (value) => typeof value === 'object';
+    // tslint:disable:variable-name
+    is.undefined = isOfType('undefined');
+    is.string = isOfType('string');
+    is.number = isOfType('number');
+    is.function_ = isOfType('function');
+    // tslint:disable-next-line:strict-type-predicates
+    is.null_ = (value) => value === null;
+    is.class_ = (value) => is.function_(value) && value.toString().startsWith('class ');
+    is.boolean = (value) => value === true || value === false;
+    is.symbol = isOfType('symbol');
+    // tslint:enable:variable-name
+    is.numericString = (value) => is.string(value) && value.length > 0 && !Number.isNaN(Number(value));
+    is.array = Array.isArray;
+    is.buffer = isBuffer;
+    is.nullOrUndefined = (value) => is.null_(value) || is.undefined(value);
+    is.object = (value) => !is.nullOrUndefined(value) && (is.function_(value) || isObject(value));
+    is.iterable = (value) => !is.nullOrUndefined(value) && is.function_(value[Symbol.iterator]);
+    is.asyncIterable = (value) => !is.nullOrUndefined(value) && is.function_(value[Symbol.asyncIterator]);
+    is.generator = (value) => is.iterable(value) && is.function_(value.next) && is.function_(value.throw);
+    is.nativePromise = (value) => isObjectOfType("Promise" /* Promise */)(value);
+    const hasPromiseAPI = (value) => !is.null_(value) &&
+        isObject(value) &&
+        is.function_(value.then) &&
+        is.function_(value.catch);
+    is.promise = (value) => is.nativePromise(value) || hasPromiseAPI(value);
+    is.generatorFunction = isObjectOfType("GeneratorFunction" /* GeneratorFunction */);
+    is.asyncFunction = isObjectOfType("AsyncFunction" /* AsyncFunction */);
+    is.boundFunction = (value) => is.function_(value) && !value.hasOwnProperty('prototype');
+    is.regExp = isObjectOfType("RegExp" /* RegExp */);
+    is.date = isObjectOfType("Date" /* Date */);
+    is.error = isObjectOfType("Error" /* Error */);
+    is.map = (value) => isObjectOfType("Map" /* Map */)(value);
+    is.set = (value) => isObjectOfType("Set" /* Set */)(value);
+    is.weakMap = (value) => isObjectOfType("WeakMap" /* WeakMap */)(value);
+    is.weakSet = (value) => isObjectOfType("WeakSet" /* WeakSet */)(value);
+    is.int8Array = isObjectOfType("Int8Array" /* Int8Array */);
+    is.uint8Array = isObjectOfType("Uint8Array" /* Uint8Array */);
+    is.uint8ClampedArray = isObjectOfType("Uint8ClampedArray" /* Uint8ClampedArray */);
+    is.int16Array = isObjectOfType("Int16Array" /* Int16Array */);
+    is.uint16Array = isObjectOfType("Uint16Array" /* Uint16Array */);
+    is.int32Array = isObjectOfType("Int32Array" /* Int32Array */);
+    is.uint32Array = isObjectOfType("Uint32Array" /* Uint32Array */);
+    is.float32Array = isObjectOfType("Float32Array" /* Float32Array */);
+    is.float64Array = isObjectOfType("Float64Array" /* Float64Array */);
+    is.arrayBuffer = isObjectOfType("ArrayBuffer" /* ArrayBuffer */);
+    is.sharedArrayBuffer = isObjectOfType("SharedArrayBuffer" /* SharedArrayBuffer */);
+    is.dataView = isObjectOfType("DataView" /* DataView */);
+    is.directInstanceOf = (instance, klass) => Object.getPrototypeOf(instance) === klass.prototype;
+    is.urlInstance = (value) => isObjectOfType("URL" /* URL */)(value);
+    is.urlString = (value) => {
+        if (!is.string(value)) {
+            return false;
+        }
+        try {
+            new URLGlobal(value); // tslint:disable-line no-unused-expression
+            return true;
+        }
+        catch (_a) {
+            return false;
+        }
+    };
+    is.truthy = (value) => Boolean(value);
+    is.falsy = (value) => !value;
+    is.nan = (value) => Number.isNaN(value);
+    const primitiveTypes = new Set([
+        'undefined',
+        'string',
+        'number',
+        'boolean',
+        'symbol'
+    ]);
+    is.primitive = (value) => is.null_(value) || primitiveTypes.has(typeof value);
+    is.integer = (value) => Number.isInteger(value);
+    is.safeInteger = (value) => Number.isSafeInteger(value);
+    is.plainObject = (value) => {
+        // From: https://github.com/sindresorhus/is-plain-obj/blob/master/index.js
+        let prototype;
+        return getObjectType(value) === "Object" /* Object */ &&
+            (prototype = Object.getPrototypeOf(value), prototype === null || // tslint:disable-line:ban-comma-operator
+                prototype === Object.getPrototypeOf({}));
+    };
+    const typedArrayTypes = new Set([
+        "Int8Array" /* Int8Array */,
+        "Uint8Array" /* Uint8Array */,
+        "Uint8ClampedArray" /* Uint8ClampedArray */,
+        "Int16Array" /* Int16Array */,
+        "Uint16Array" /* Uint16Array */,
+        "Int32Array" /* Int32Array */,
+        "Uint32Array" /* Uint32Array */,
+        "Float32Array" /* Float32Array */,
+        "Float64Array" /* Float64Array */
+    ]);
+    is.typedArray = (value) => {
+        const objectType = getObjectType(value);
+        if (objectType === null) {
+            return false;
+        }
+        return typedArrayTypes.has(objectType);
+    };
+    const isValidLength = (value) => is.safeInteger(value) && value > -1;
+    is.arrayLike = (value) => !is.nullOrUndefined(value) && !is.function_(value) && isValidLength(value.length);
+    is.inRange = (value, range) => {
+        if (is.number(range)) {
+            return value >= Math.min(0, range) && value <= Math.max(range, 0);
+        }
+        if (is.array(range) && range.length === 2) {
+            return value >= Math.min(...range) && value <= Math.max(...range);
+        }
+        throw new TypeError(`Invalid range: ${JSON.stringify(range)}`);
+    };
+    const NODE_TYPE_ELEMENT = 1;
+    const DOM_PROPERTIES_TO_CHECK = [
+        'innerHTML',
+        'ownerDocument',
+        'style',
+        'attributes',
+        'nodeValue'
+    ];
+    is.domElement = (value) => is.object(value) && value.nodeType === NODE_TYPE_ELEMENT && is.string(value.nodeName) &&
+        !is.plainObject(value) && DOM_PROPERTIES_TO_CHECK.every(property => property in value);
+    is.observable = (value) => {
+        if (!value) {
+            return false;
+        }
+        if (value[Symbol.observable] && value === value[Symbol.observable]()) {
+            return true;
+        }
+        if (value['@@observable'] && value === value['@@observable']()) {
+            return true;
+        }
+        return false;
+    };
+    is.nodeStream = (value) => !is.nullOrUndefined(value) && isObject(value) && is.function_(value.pipe) && !is.observable(value);
+    is.infinite = (value) => value === Infinity || value === -Infinity;
+    const isAbsoluteMod2 = (rem) => (value) => is.integer(value) && Math.abs(value % 2) === rem;
+    is.even = isAbsoluteMod2(0);
+    is.odd = isAbsoluteMod2(1);
+    const isWhiteSpaceString = (value) => is.string(value) && /\S/.test(value) === false;
+    is.emptyArray = (value) => is.array(value) && value.length === 0;
+    is.nonEmptyArray = (value) => is.array(value) && value.length > 0;
+    is.emptyString = (value) => is.string(value) && value.length === 0;
+    is.nonEmptyString = (value) => is.string(value) && value.length > 0;
+    is.emptyStringOrWhitespace = (value) => is.emptyString(value) || isWhiteSpaceString(value);
+    is.emptyObject = (value) => is.object(value) && !is.map(value) && !is.set(value) && Object.keys(value).length === 0;
+    is.nonEmptyObject = (value) => is.object(value) && !is.map(value) && !is.set(value) && Object.keys(value).length > 0;
+    is.emptySet = (value) => is.set(value) && value.size === 0;
+    is.nonEmptySet = (value) => is.set(value) && value.size > 0;
+    is.emptyMap = (value) => is.map(value) && value.size === 0;
+    is.nonEmptyMap = (value) => is.map(value) && value.size > 0;
+    const predicateOnArray = (method, predicate, values) => {
+        if (is.function_(predicate) === false) {
+            throw new TypeError(`Invalid predicate: ${JSON.stringify(predicate)}`);
+        }
+        if (values.length === 0) {
+            throw new TypeError('Invalid number of values');
+        }
+        return method.call(values, predicate);
+    };
+    // tslint:disable variable-name
+    is.any = (predicate, ...values) => predicateOnArray(Array.prototype.some, predicate, values);
+    is.all = (predicate, ...values) => predicateOnArray(Array.prototype.every, predicate, values);
+    // tslint:enable variable-name
+})(is || (is = {}));
+// Some few keywords are reserved, but we'll populate them for Node.js users
+// See https://github.com/Microsoft/TypeScript/issues/2536
+Object.defineProperties(is, {
+    class: {
+        value: is.class_
+    },
+    function: {
+        value: is.function_
+    },
+    null: {
+        value: is.null_
+    }
+});
+exports.default = is;
+// For CommonJS default export support
+module.exports = is;
+module.exports.default = is;
+//# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/helloworld/node_modules/@sindresorhus/is/dist/index.js.map b/helloworld/node_modules/@sindresorhus/is/dist/index.js.map
new file mode 100755
index 0000000..cd827fc
--- /dev/null
+++ b/helloworld/node_modules/@sindresorhus/is/dist/index.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/helloworld/node_modules/@sindresorhus/is/license b/helloworld/node_modules/@sindresorhus/is/license
new file mode 100755
index 0000000..e7af2f7
--- /dev/null
+++ b/helloworld/node_modules/@sindresorhus/is/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/@sindresorhus/is/readme.md b/helloworld/node_modules/@sindresorhus/is/readme.md
new file mode 100755
index 0000000..97c023b
--- /dev/null
+++ b/helloworld/node_modules/@sindresorhus/is/readme.md
@@ -0,0 +1,451 @@
+# is [![Build Status](https://travis-ci.org/sindresorhus/is.svg?branch=master)](https://travis-ci.org/sindresorhus/is)
+
+> Type check values: `is.string('🦄') //=> true`
+
+<img src="header.gif" width="182" align="right">
+
+
+## Install
+
+```
+$ npm install @sindresorhus/is
+```
+
+
+## Usage
+
+```js
+const is = require('@sindresorhus/is');
+
+is('🦄');
+//=> 'string'
+
+is(new Map());
+//=> 'Map'
+
+is.number(6);
+//=> true
+```
+
+When using `is` together with TypeScript, [type guards](http://www.typescriptlang.org/docs/handbook/advanced-types.html#type-guards-and-differentiating-types) are being used to infer the correct type inside if-else statements.
+
+```ts
+import is from '@sindresorhus/is';
+
+const padLeft = (value: string, padding: string | number) => {
+	if (is.number(padding)) {
+		// `padding` is typed as `number`
+		return Array(padding + 1).join(' ') + value;
+	}
+
+	if (is.string(padding)) {
+		// `padding` is typed as `string`
+		return padding + value;
+	}
+
+	throw new TypeError(`Expected 'padding' to be of type 'string' or 'number', got '${is(padding)}'.`);
+}
+
+padLeft('🦄', 3);
+//=> '   🦄'
+
+padLeft('🦄', '🌈');
+//=> '🌈🦄'
+```
+
+
+## API
+
+### is(value)
+
+Returns the type of `value`.
+
+Primitives are lowercase and object types are camelcase.
+
+Example:
+
+- `'undefined'`
+- `'null'`
+- `'string'`
+- `'symbol'`
+- `'Array'`
+- `'Function'`
+- `'Object'`
+
+Note: It will throw an error if you try to feed it object-wrapped primitives, as that's a bad practice. For example `new String('foo')`.
+
+### is.{method}
+
+All the below methods accept a value and returns a boolean for whether the value is of the desired type.
+
+#### Primitives
+
+##### .undefined(value)
+##### .null(value)
+##### .string(value)
+##### .number(value)
+##### .boolean(value)
+##### .symbol(value)
+
+#### Built-in types
+
+##### .array(value)
+##### .function(value)
+##### .buffer(value)
+##### .object(value)
+
+Keep in mind that [functions are objects too](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions).
+
+##### .numericString(value)
+
+Returns `true` for a string that represents a number. For example, `'42'` and `'-8'`.
+
+Note: `'NaN'` returns `false`, but `'Infinity'` and `'-Infinity'` return `true`.
+
+##### .regExp(value)
+##### .date(value)
+##### .error(value)
+##### .nativePromise(value)
+##### .promise(value)
+
+Returns `true` for any object with a `.then()` and `.catch()` method. Prefer this one over `.nativePromise()` as you usually want to allow userland promise implementations too.
+
+##### .generator(value)
+
+Returns `true` for any object that implements its own `.next()` and `.throw()` methods and has a function definition for `Symbol.iterator`.
+
+##### .generatorFunction(value)
+
+##### .asyncFunction(value)
+
+Returns `true` for any `async` function that can be called with the `await` operator.
+
+```js
+is.asyncFunction(async () => {});
+// => true
+
+is.asyncFunction(() => {});
+// => false
+```
+
+##### .boundFunction(value)
+
+Returns `true` for any `bound` function.
+
+```js
+is.boundFunction(() => {});
+// => true
+
+is.boundFunction(function () {}.bind(null));
+// => true
+
+is.boundFunction(function () {});
+// => false
+```
+
+##### .map(value)
+##### .set(value)
+##### .weakMap(value)
+##### .weakSet(value)
+
+#### Typed arrays
+
+##### .int8Array(value)
+##### .uint8Array(value)
+##### .uint8ClampedArray(value)
+##### .int16Array(value)
+##### .uint16Array(value)
+##### .int32Array(value)
+##### .uint32Array(value)
+##### .float32Array(value)
+##### .float64Array(value)
+
+#### Structured data
+
+##### .arrayBuffer(value)
+##### .sharedArrayBuffer(value)
+##### .dataView(value)
+
+#### Emptiness
+
+##### .emptyString(value)
+
+Returns `true` if the value is a `string` and the `.length` is 0.
+
+##### .nonEmptyString(value)
+
+Returns `true` if the value is a `string` and the `.length` is more than 0.
+
+##### .emptyStringOrWhitespace(value)
+
+Returns `true` if `is.emptyString(value)` or if it's a `string` that is all whitespace.
+
+##### .emptyArray(value)
+
+Returns `true` if the value is an `Array` and the `.length` is 0.
+
+##### .nonEmptyArray(value)
+
+Returns `true` if the value is an `Array` and the `.length` is more than 0.
+
+##### .emptyObject(value)
+
+Returns `true` if the value is an `Object` and `Object.keys(value).length` is 0.
+
+Please note that `Object.keys` returns only own enumerable properties. Hence something like this can happen:
+
+```js
+const object1 = {};
+
+Object.defineProperty(object1, 'property1', {
+	value: 42,
+	writable: true,
+	enumerable: false,
+	configurable: true
+});
+
+is.emptyObject(object1);
+// => true
+```
+
+##### .nonEmptyObject(value)
+
+Returns `true` if the value is an `Object` and `Object.keys(value).length` is more than 0.
+
+##### .emptySet(value)
+
+Returns `true` if the value is a `Set` and the `.size` is 0.
+
+##### .nonEmptySet(Value)
+
+Returns `true` if the value is a `Set` and the `.size` is more than 0.
+
+##### .emptyMap(value)
+
+Returns `true` if the value is a `Map` and the `.size` is 0.
+
+##### .nonEmptyMap(value)
+
+Returns `true` if the value is a `Map` and the `.size` is more than 0.
+
+#### Miscellaneous
+
+##### .directInstanceOf(value, class)
+
+Returns `true` if `value` is a direct instance of `class`.
+
+```js
+is.directInstanceOf(new Error(), Error);
+//=> true
+
+class UnicornError extends Error {}
+
+is.directInstanceOf(new UnicornError(), Error);
+//=> false
+```
+
+##### .urlInstance(value)
+
+Returns `true` if `value` is an instance of the [`URL` class](https://developer.mozilla.org/en-US/docs/Web/API/URL).
+
+```js
+const url = new URL('https://example.com');
+
+is.urlInstance(url);
+//=> true
+```
+
+### .url(value)
+
+Returns `true` if `value` is a URL string.
+
+Note: this only does basic checking using the [`URL` class](https://developer.mozilla.org/en-US/docs/Web/API/URL) constructor.
+
+```js
+const url = 'https://example.com';
+
+is.url(url);
+//=> true
+
+is.url(new URL(url));
+//=> false
+```
+
+##### .truthy(value)
+
+Returns `true` for all values that evaluate to true in a boolean context:
+
+```js
+is.truthy('🦄');
+//=> true
+
+is.truthy(undefined);
+//=> false
+```
+
+##### .falsy(value)
+
+Returns `true` if `value` is one of: `false`, `0`, `''`, `null`, `undefined`, `NaN`.
+
+##### .nan(value)
+##### .nullOrUndefined(value)
+##### .primitive(value)
+
+JavaScript primitives are as follows: `null`, `undefined`, `string`, `number`, `boolean`, `symbol`.
+
+##### .integer(value)
+
+##### .safeInteger(value)
+
+Returns `true` if `value` is a [safe integer](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isSafeInteger).
+
+##### .plainObject(value)
+
+An object is plain if it's created by either `{}`, `new Object()`, or `Object.create(null)`.
+
+##### .iterable(value)
+##### .asyncIterable(value)
+##### .class(value)
+
+Returns `true` for instances created by a class.
+
+##### .typedArray(value)
+
+##### .arrayLike(value)
+
+A `value` is array-like if it is not a function and has a `value.length` that is a safe integer greater than or equal to 0.
+
+```js
+is.arrayLike(document.forms);
+//=> true
+
+function foo() {
+	is.arrayLike(arguments);
+	//=> true
+}
+foo();
+```
+
+##### .inRange(value, range)
+
+Check if `value` (number) is in the given `range`. The range is an array of two values, lower bound and upper bound, in no specific order.
+
+```js
+is.inRange(3, [0, 5]);
+is.inRange(3, [5, 0]);
+is.inRange(0, [-2, 2]);
+```
+
+##### .inRange(value, upperBound)
+
+Check if `value` (number) is in the range of `0` to `upperBound`.
+
+```js
+is.inRange(3, 10);
+```
+
+##### .domElement(value)
+
+Returns `true` if `value` is a DOM Element.
+
+##### .nodeStream(value)
+
+Returns `true` if `value` is a Node.js [stream](https://nodejs.org/api/stream.html).
+
+```js
+const fs = require('fs');
+
+is.nodeStream(fs.createReadStream('unicorn.png'));
+//=> true
+```
+
+##### .observable(value)
+
+Returns `true` if `value` is an `Observable`.
+
+```js
+const {Observable} = require('rxjs');
+
+is.observable(new Observable());
+//=> true
+```
+
+##### .infinite(value)
+
+Check if `value` is `Infinity` or `-Infinity`.
+
+##### .even(value)
+
+Returns `true` if `value` is an even integer.
+
+##### .odd(value)
+
+Returns `true` if `value` is an odd integer.
+
+##### .any(predicate, ...values)
+
+Returns `true` if **any** of the input `values` returns true in the `predicate`:
+
+```js
+is.any(is.string, {}, true, '🦄');
+//=> true
+
+is.any(is.boolean, 'unicorns', [], new Map());
+//=> false
+```
+
+##### .all(predicate, ...values)
+
+Returns `true` if **all** of the input `values` returns true in the `predicate`:
+
+```js
+is.all(is.object, {}, new Map(), new Set());
+//=> true
+
+is.all(is.string, '🦄', [], 'unicorns');
+//=> false
+```
+
+
+## FAQ
+
+### Why yet another type checking module?
+
+There are hundreds of type checking modules on npm, unfortunately, I couldn't find any that fit my needs:
+
+- Includes both type methods and ability to get the type
+- Types of primitives returned as lowercase and object types as camelcase
+- Covers all built-ins
+- Unsurprising behavior
+- Well-maintained
+- Comprehensive test suite
+
+For the ones I found, pick 3 of these.
+
+The most common mistakes I noticed in these modules was using `instanceof` for type checking, forgetting that functions are objects, and omitting `symbol` as a primitive.
+
+
+## Related
+
+- [ow](https://github.com/sindresorhus/ow) - Function argument validation for humans
+- [is-stream](https://github.com/sindresorhus/is-stream) - Check if something is a Node.js stream
+- [is-observable](https://github.com/sindresorhus/is-observable) - Check if a value is an Observable
+- [file-type](https://github.com/sindresorhus/file-type) - Detect the file type of a Buffer/Uint8Array
+- [is-ip](https://github.com/sindresorhus/is-ip) - Check if a string is an IP address
+- [is-array-sorted](https://github.com/sindresorhus/is-array-sorted) - Check if an Array is sorted
+- [is-error-constructor](https://github.com/sindresorhus/is-error-constructor) - Check if a value is an error constructor
+- [is-empty-iterable](https://github.com/sindresorhus/is-empty-iterable) - Check if an Iterable is empty
+- [is-blob](https://github.com/sindresorhus/is-blob) - Check if a value is a Blob - File-like object of immutable, raw data
+- [has-emoji](https://github.com/sindresorhus/has-emoji) - Check whether a string has any emoji
+
+
+## Created by
+
+- [Sindre Sorhus](https://github.com/sindresorhus)
+- [Giora Guttsait](https://github.com/gioragutt)
+- [Brandon Smith](https://github.com/brandon93s)
+
+
+## License
+
+MIT
diff --git a/helloworld/node_modules/@szmarczak/http-timer/LICENSE b/helloworld/node_modules/@szmarczak/http-timer/LICENSE
new file mode 100755
index 0000000..15ad2e8
--- /dev/null
+++ b/helloworld/node_modules/@szmarczak/http-timer/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 Szymon Marczak
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/helloworld/node_modules/@szmarczak/http-timer/README.md b/helloworld/node_modules/@szmarczak/http-timer/README.md
new file mode 100755
index 0000000..13279ed
--- /dev/null
+++ b/helloworld/node_modules/@szmarczak/http-timer/README.md
@@ -0,0 +1,70 @@
+# http-timer
+> Timings for HTTP requests
+
+[![Build Status](https://travis-ci.org/szmarczak/http-timer.svg?branch=master)](https://travis-ci.org/szmarczak/http-timer)
+[![Coverage Status](https://coveralls.io/repos/github/szmarczak/http-timer/badge.svg?branch=master)](https://coveralls.io/github/szmarczak/http-timer?branch=master)
+[![install size](https://packagephobia.now.sh/badge?p=@szmarczak/http-timer)](https://packagephobia.now.sh/result?p=@szmarczak/http-timer)
+
+Inspired by the [`request` package](https://github.com/request/request).
+
+## Usage
+```js
+'use strict';
+const https = require('https');
+const timer = require('@szmarczak/http-timer');
+
+const request = https.get('https://httpbin.org/anything');
+const timings = timer(request);
+
+request.on('response', response => {
+	response.on('data', () => {}); // Consume the data somehow
+	response.on('end', () => {
+		console.log(timings);
+	});
+});
+
+// { start: 1535708511443,
+//   socket: 1535708511444,
+//   lookup: 1535708511444,
+//   connect: 1535708511582,
+//   upload: 1535708511887,
+//   response: 1535708512037,
+//   end: 1535708512040,
+//   phases:
+//    { wait: 1,
+//      dns: 0,
+//      tcp: 138,
+//      request: 305,
+//      firstByte: 150,
+//      download: 3,
+//      total: 597 } }
+```
+
+## API
+
+### timer(request)
+
+Returns: `Object`
+
+- `start` - Time when the request started.
+- `socket` - Time when a socket was assigned to the request.
+- `lookup` - Time when the DNS lookup finished.
+- `connect` - Time when the socket successfully connected.
+- `upload` - Time when the request finished uploading.
+- `response` - Time when the request fired the `response` event.
+- `end` - Time when the response fired the `end` event.
+- `error` - Time when the request fired the `error` event.
+- `phases`
+	- `wait` - `timings.socket - timings.start`
+	- `dns` - `timings.lookup - timings.socket`
+	- `tcp` - `timings.connect - timings.lookup`
+	- `request` - `timings.upload - timings.connect`
+	- `firstByte` - `timings.response - timings.upload`
+	- `download` - `timings.end - timings.response`
+	- `total` - `timings.end - timings.start` or `timings.error - timings.start`
+
+**Note**: The time is a `number` representing the milliseconds elapsed since the UNIX epoch.
+
+## License
+
+MIT
diff --git a/helloworld/node_modules/@szmarczak/http-timer/source/index.js b/helloworld/node_modules/@szmarczak/http-timer/source/index.js
new file mode 100755
index 0000000..e294580
--- /dev/null
+++ b/helloworld/node_modules/@szmarczak/http-timer/source/index.js
@@ -0,0 +1,99 @@
+'use strict';
+const deferToConnect = require('defer-to-connect');
+
+module.exports = request => {
+	const timings = {
+		start: Date.now(),
+		socket: null,
+		lookup: null,
+		connect: null,
+		upload: null,
+		response: null,
+		end: null,
+		error: null,
+		phases: {
+			wait: null,
+			dns: null,
+			tcp: null,
+			request: null,
+			firstByte: null,
+			download: null,
+			total: null
+		}
+	};
+
+	const handleError = origin => {
+		const emit = origin.emit.bind(origin);
+		origin.emit = (event, ...args) => {
+			// Catches the `error` event
+			if (event === 'error') {
+				timings.error = Date.now();
+				timings.phases.total = timings.error - timings.start;
+
+				origin.emit = emit;
+			}
+
+			// Saves the original behavior
+			return emit(event, ...args);
+		};
+	};
+
+	let uploadFinished = false;
+	const onUpload = () => {
+		timings.upload = Date.now();
+		timings.phases.request = timings.upload - timings.connect;
+	};
+
+	handleError(request);
+
+	request.once('socket', socket => {
+		timings.socket = Date.now();
+		timings.phases.wait = timings.socket - timings.start;
+
+		const lookupListener = () => {
+			timings.lookup = Date.now();
+			timings.phases.dns = timings.lookup - timings.socket;
+		};
+
+		socket.once('lookup', lookupListener);
+
+		deferToConnect(socket, () => {
+			timings.connect = Date.now();
+
+			if (timings.lookup === null) {
+				socket.removeListener('lookup', lookupListener);
+				timings.lookup = timings.connect;
+				timings.phases.dns = timings.lookup - timings.socket;
+			}
+
+			timings.phases.tcp = timings.connect - timings.lookup;
+
+			if (uploadFinished && !timings.upload) {
+				onUpload();
+			}
+		});
+	});
+
+	request.once('finish', () => {
+		uploadFinished = true;
+
+		if (timings.connect) {
+			onUpload();
+		}
+	});
+
+	request.once('response', response => {
+		timings.response = Date.now();
+		timings.phases.firstByte = timings.response - timings.upload;
+
+		handleError(response);
+
+		response.once('end', () => {
+			timings.end = Date.now();
+			timings.phases.download = timings.end - timings.response;
+			timings.phases.total = timings.end - timings.start;
+		});
+	});
+
+	return timings;
+};
diff --git a/helloworld/node_modules/Buffer/README.md b/helloworld/node_modules/Buffer/README.md
new file mode 100755
index 0000000..7cb430a
--- /dev/null
+++ b/helloworld/node_modules/Buffer/README.md
@@ -0,0 +1,24 @@
+Buffer
+===
+
+The goal is to use `UInt8Array` as a buffer backend that completely follows the Node.JS API.
+
+For now, however, this just aliases `Array` as `Buffer` which works for many use cases.
+
+Current Implementation
+---
+
+    var Buffer;
+    (function () {
+      "use strict";
+
+      function createBuffer() {
+        return Array;
+      }
+
+      if ('undefined' === typeof Buffer) {
+        Buffer = createBuffer();
+      }
+
+      module.exports = Buffer;
+    }());
diff --git a/helloworld/node_modules/Buffer/index.js b/helloworld/node_modules/Buffer/index.js
new file mode 100755
index 0000000..431d73a
--- /dev/null
+++ b/helloworld/node_modules/Buffer/index.js
@@ -0,0 +1,98 @@
+if ('undefined' === typeof Buffer) {
+  // implicit global
+  Buffer = undefined;
+}
+
+(function () {
+  "use strict";
+
+  function createBuffer() {
+    return Array;
+
+    /*
+    function Buffer(sizeOrArrayOrString, encoding) {
+      var size, arr, str;
+
+      if ('number' === typeof sizeOrArrayOrString) {
+        size = sizeOrArrayOrString;
+      } else if ('string' === typeof sizeOrArrayOrString) {
+        // TODO handle encoding
+        str = String(sizeOrArrayOrString);
+        arr = arr.split('');
+        size = arr.length;
+      } else {
+        arr = sizeOrArrayOrString;
+        size = arr.length;
+      }
+
+      this.length = size;
+    }
+
+    Buffer.prototype = new Array();
+    delete Buffer.prototype.push;
+    delete Buffer.prototype.pop;
+    delete Buffer.prototype.shift;
+    delete Buffer.prototype.unshift;
+    delete Buffer.prototype.splice;
+
+    Buffer.isBuffer = function (buf) {
+      return buf instanceof Buffer;
+    };
+
+    // TODO
+    Buffer.byteLength = function (string, encoding) {
+      console.log('[todo] byteLength');
+      encoding = encoding || 'utf8';
+      // return string.length;
+    };
+
+    // TODO
+    Buffer.prototype.write = function (string, offset, encoding) {
+      console.log('[todo] write');
+    };
+
+    Buffer.prototype.toString = function (encoding, start, end) {
+      var res = {}
+        , i
+        ;
+
+      start = start || 0;
+      end = end || this.length - 1;
+      res.length = end + 1;
+
+      if (this.length === res.length) {
+        res = this;
+      } else {
+        i = 0;
+        while (start <= end) {
+          res[i] = this[start];
+          i += 1;
+          start += 1;
+        }
+      }
+
+      return JSON.stringify(res);
+    };
+
+    Buffer.prototype.copy = function (targetBuffer, targetStart, sourceStart, sourceEnd) {
+      targetStart = targetStart || 0;
+      sourceStart = sourceStart || 0;
+      sourceEnd = sourceEnd || targetBuffer.length;
+
+    };
+
+    Buffer.prototype.slice = function (start, end) {
+      end = end || this.length;
+      this.slice(start, end);
+    }
+
+    return Buffer;
+    */
+  }
+
+  if ('undefined' === typeof Buffer) {
+    Buffer = createBuffer();
+  }
+
+  module.exports = Buffer;
+}());
diff --git a/helloworld/node_modules/Buffer/package.json b/helloworld/node_modules/Buffer/package.json
new file mode 100755
index 0000000..516db45
--- /dev/null
+++ b/helloworld/node_modules/Buffer/package.json
@@ -0,0 +1,50 @@
+{
+  "_from": "Buffer",
+  "_id": "Buffer@0.0.0",
+  "_inBundle": false,
+  "_integrity": "sha1-gs+OmGohCf9tHW8cQ25H0HEnrqQ=",
+  "_location": "/Buffer",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "tag",
+    "registry": true,
+    "raw": "Buffer",
+    "name": "Buffer",
+    "escapedName": "Buffer",
+    "rawSpec": "",
+    "saveSpec": null,
+    "fetchSpec": "latest"
+  },
+  "_requiredBy": [
+    "#USER",
+    "/"
+  ],
+  "_resolved": "https://registry.npmjs.org/Buffer/-/Buffer-0.0.0.tgz",
+  "_shasum": "82cf8e986a2109ff6d1d6f1c436e47d07127aea4",
+  "_spec": "Buffer",
+  "_where": "/Users/chhekur/Desktop/nodejs-mobile-samples-master/android/native-gradle/app/src/main/assets/myapp",
+  "author": {
+    "name": "AJ ONeal",
+    "email": "coolaj86@gmail.com",
+    "url": "http://coolaj86.info"
+  },
+  "bugs": {
+    "url": "https://github.com/coolaj86/browser-buffer/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {},
+  "deprecated": false,
+  "description": "API-compatible Node.JS Buffer for Ender.js (browser)",
+  "devDependencies": {},
+  "engines": {
+    "node": ">= 0.2.0"
+  },
+  "homepage": "https://github.com/coolaj86/browser-buffer#readme",
+  "main": "index.js",
+  "name": "Buffer",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/coolaj86/browser-buffer.git"
+  },
+  "version": "0.0.0"
+}
diff --git a/helloworld/node_modules/FileReader/FileReader.js b/helloworld/node_modules/FileReader/FileReader.js
new file mode 100755
index 0000000..19ea284
--- /dev/null
+++ b/helloworld/node_modules/FileReader/FileReader.js
@@ -0,0 +1,302 @@
+//
+// FileReader
+//
+// http://www.w3.org/TR/FileAPI/#dfn-filereader
+// https://developer.mozilla.org/en/DOM/FileReader
+(function () {
+  "use strict";
+
+  var fs = require("fs")
+    , EventEmitter = require("events").EventEmitter
+    ;
+
+  function doop(fn, args, context) {
+    if ('function' === typeof fn) {
+      fn.apply(context, args);
+    }
+  }
+
+  function toDataUrl(data, type) {
+    // var data = self.result;
+    var dataUrl = 'data:';
+
+    if (type) {
+      dataUrl += type + ';';
+    }
+
+    if (/text/i.test(type)) {
+      dataUrl += 'charset=utf-8,';
+      dataUrl += data.toString('utf8');
+    } else {
+      dataUrl += 'base64,';
+      dataUrl += data.toString('base64');
+    }
+
+    return dataUrl;
+  }
+
+  function mapDataToFormat(file, data, format, encoding) {
+    // var data = self.result;
+
+    switch(format) {
+      case 'buffer':
+        return data;
+        break;
+      case 'binary':
+        return data.toString('binary');
+        break;
+      case 'dataUrl':
+        return toDataUrl(data, file.type);
+        break;
+      case 'text':
+        return data.toString(encoding || 'utf8');
+        break;
+    }
+  }
+
+  function FileReader() {
+    var self = this,
+      emitter = new EventEmitter,
+      file;
+
+    require('bufferjs/concat');
+
+    self.addEventListener = function (on, callback) {
+      emitter.on(on, callback);
+    };
+    self.removeEventListener = function (callback) {
+      emitter.removeListener(callback);
+    }
+    self.dispatchEvent = function (on) {
+      emitter.emit(on);
+    }
+
+    self.EMPTY = 0;
+    self.LOADING = 1;
+    self.DONE = 2;
+
+    self.error = undefined;         // Read only
+    self.readyState = self.EMPTY;   // Read only
+    self.result = undefined;        // Road only
+
+    // non-standard
+    self.on = function () {
+      emitter.on.apply(emitter, arguments);
+    }
+    self.nodeChunkedEncoding = false;
+    self.setNodeChunkedEncoding = function (val) {
+      self.nodeChunkedEncoding = val;
+    };
+    // end non-standard
+
+
+
+    // Whatever the file object is, turn it into a Node.JS File.Stream
+    function createFileStream() {
+      var stream = new EventEmitter(),
+        chunked = self.nodeChunkedEncoding;
+
+      // attempt to make the length computable
+      if (!file.size && chunked && file.path) {
+        fs.stat(file.path, function (err, stat) {
+          file.size = stat.size;
+          file.lastModifiedDate = stat.mtime;
+        });
+      }
+
+
+      // The stream exists, do nothing more
+      if (file.stream) {
+        return;
+      }
+
+
+      // Create a read stream from a buffer
+      if (file.buffer) {
+        process.nextTick(function () {
+          stream.emit('data', file.buffer);
+          stream.emit('end');
+        });
+        file.stream = stream;
+        return;
+      }
+
+
+      // Create a read stream from a file
+      if (file.path) {
+        // TODO url
+        if (!chunked) {
+          fs.readFile(file.path, function (err, data) {
+            if (err) {
+              stream.emit('error', err);
+            }
+            if (data) {
+              stream.emit('data', data);
+              stream.emit('end');
+            }
+          });
+
+          file.stream = stream;
+          return;
+        }
+
+        // TODO don't duplicate this code here,
+        // expose a method in File instead
+        file.stream = fs.createReadStream(file.path);
+      }
+    }
+
+
+
+    // before any other listeners are added
+    emitter.on('abort', function () {
+      self.readyState = self.DONE;
+    });
+
+
+
+    // Map `error`, `progress`, `load`, and `loadend`
+    function mapStreamToEmitter(format, encoding) {
+      var stream = file.stream,
+        buffers = [],
+        chunked = self.nodeChunkedEncoding;
+
+      buffers.dataLength = 0;
+
+      stream.on('error', function (err) {
+        if (self.DONE === self.readyState) {
+          return;
+        }
+
+        self.readyState = self.DONE;
+        self.error = err;
+        emitter.emit('error', err);
+      });
+
+      stream.on('data', function (data) {
+        if (self.DONE === self.readyState) {
+          return;
+        }
+
+        buffers.dataLength += data.length;
+        buffers.push(data);
+
+        emitter.emit('progress', {
+          // fs.stat will probably complete before this
+          // but possibly it will not, hence the check
+          lengthComputable: (!isNaN(file.size)) ? true : false,
+          loaded: buffers.dataLength,
+          total: file.size
+        });
+
+        emitter.emit('data', data);
+      });
+
+      stream.on('end', function () {
+        if (self.DONE === self.readyState) {
+          return;
+        }
+
+        var data;
+
+        if (buffers.length > 1 ) {
+          data = Buffer.concat(buffers);
+        } else {
+          data = buffers[0];
+        }
+
+        self.readyState = self.DONE;
+        self.result = mapDataToFormat(file, data, format, encoding);
+        emitter.emit('load', {
+          target: {
+            // non-standard
+            nodeBufferResult: data,
+            result: self.result
+          }
+        });
+
+        emitter.emit('loadend');
+      });
+    }
+
+
+    // Abort is overwritten by readAsXyz
+    self.abort = function () {
+      if (self.readState == self.DONE) {
+        return;
+      }
+      self.readyState = self.DONE;
+      emitter.emit('abort');
+    };
+
+
+
+    // 
+    function mapUserEvents() {
+      emitter.on('start', function () {
+        doop(self.onloadstart, arguments);
+      });
+      emitter.on('progress', function () {
+        doop(self.onprogress, arguments);
+      });
+      emitter.on('error', function (err) {
+        // TODO translate to FileError
+        if (self.onerror) {
+          self.onerror(err);
+        } else {
+          if (!emitter.listeners.error || !emitter.listeners.error.length) {
+            throw err;
+          }
+        }
+      });
+      emitter.on('load', function () {
+        doop(self.onload, arguments);
+      });
+      emitter.on('end', function () {
+        doop(self.onloadend, arguments);
+      });
+      emitter.on('abort', function () {
+        doop(self.onabort, arguments);
+      });
+    }
+
+
+
+    function readFile(_file, format, encoding) {
+      file = _file;
+      if (!file || !file.name || !(file.path || file.stream || file.buffer)) {
+        throw new Error("cannot read as File: " + JSON.stringify(file));
+      }
+      if (0 !== self.readyState) {
+        console.log("already loading, request to change format ignored");
+        return;
+      }
+
+      // 'process.nextTick' does not ensure order, (i.e. an fs.stat queued later may return faster)
+      // but `onloadstart` must come before the first `data` event and must be asynchronous.
+      // Hence we waste a single tick waiting
+      process.nextTick(function () {
+        self.readyState = self.LOADING;
+        emitter.emit('loadstart');
+        createFileStream();
+        mapStreamToEmitter(format, encoding);
+        mapUserEvents();
+      });
+    }
+
+    self.readAsArrayBuffer = function (file) {
+      readFile(file, 'buffer');
+    };
+    self.readAsBinaryString = function (file) {
+      readFile(file, 'binary');
+    };
+    self.readAsDataURL = function (file) {
+      readFile(file, 'dataUrl');
+    };
+    self.readAsText = function (file, encoding) {
+      readFile(file, 'text', encoding);
+    };
+  }
+
+  module.exports = FileReader;
+}());
diff --git a/helloworld/node_modules/FileReader/package.json b/helloworld/node_modules/FileReader/package.json
new file mode 100755
index 0000000..d6657a9
--- /dev/null
+++ b/helloworld/node_modules/FileReader/package.json
@@ -0,0 +1,48 @@
+{
+  "_from": "FileReader",
+  "_id": "FileReader@0.10.2",
+  "_inBundle": false,
+  "_integrity": "sha1-GxF722te2F4kGsPLEPG3CGUk5Tk=",
+  "_location": "/FileReader",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "tag",
+    "registry": true,
+    "raw": "FileReader",
+    "name": "FileReader",
+    "escapedName": "FileReader",
+    "rawSpec": "",
+    "saveSpec": null,
+    "fetchSpec": "latest"
+  },
+  "_requiredBy": [
+    "#USER",
+    "/"
+  ],
+  "_resolved": "https://registry.npmjs.org/FileReader/-/FileReader-0.10.2.tgz",
+  "_shasum": "1b117bdb6b5ed85e241ac3cb10f1b7086524e539",
+  "_spec": "FileReader",
+  "_where": "/Users/chhekur/Desktop/nodejs-mobile-samples-master/android/native-gradle/app/src/main/assets/myapp",
+  "author": {
+    "name": "AJ ONeal",
+    "email": "coolaj86@gmail.com"
+  },
+  "bundleDependencies": false,
+  "contributors": [],
+  "dependencies": {},
+  "deprecated": false,
+  "description": "HTML5 FileAPI `FileReader` for Node.JS.",
+  "engines": {
+    "node": "*"
+  },
+  "keywords": [
+    "html5",
+    "jsdom",
+    "file-api",
+    "FileReader"
+  ],
+  "main": "FileReader.js",
+  "name": "FileReader",
+  "url": "http://github.com/coolaj86/node-file-api/",
+  "version": "0.10.2"
+}
diff --git a/helloworld/node_modules/accepts/HISTORY.md b/helloworld/node_modules/accepts/HISTORY.md
new file mode 100755
index 0000000..f16c17a
--- /dev/null
+++ b/helloworld/node_modules/accepts/HISTORY.md
@@ -0,0 +1,224 @@
+1.3.5 / 2018-02-28
+==================
+
+  * deps: mime-types@~2.1.18
+    - deps: mime-db@~1.33.0
+
+1.3.4 / 2017-08-22
+==================
+
+  * deps: mime-types@~2.1.16
+    - deps: mime-db@~1.29.0
+
+1.3.3 / 2016-05-02
+==================
+
+  * deps: mime-types@~2.1.11
+    - deps: mime-db@~1.23.0
+  * deps: negotiator@0.6.1
+    - perf: improve `Accept` parsing speed
+    - perf: improve `Accept-Charset` parsing speed
+    - perf: improve `Accept-Encoding` parsing speed
+    - perf: improve `Accept-Language` parsing speed
+
+1.3.2 / 2016-03-08
+==================
+
+  * deps: mime-types@~2.1.10
+    - Fix extension of `application/dash+xml`
+    - Update primary extension for `audio/mp4`
+    - deps: mime-db@~1.22.0
+
+1.3.1 / 2016-01-19
+==================
+
+  * deps: mime-types@~2.1.9
+    - deps: mime-db@~1.21.0
+
+1.3.0 / 2015-09-29
+==================
+
+  * deps: mime-types@~2.1.7
+    - deps: mime-db@~1.19.0
+  * deps: negotiator@0.6.0
+    - Fix including type extensions in parameters in `Accept` parsing
+    - Fix parsing `Accept` parameters with quoted equals
+    - Fix parsing `Accept` parameters with quoted semicolons
+    - Lazy-load modules from main entry point
+    - perf: delay type concatenation until needed
+    - perf: enable strict mode
+    - perf: hoist regular expressions
+    - perf: remove closures getting spec properties
+    - perf: remove a closure from media type parsing
+    - perf: remove property delete from media type parsing
+
+1.2.13 / 2015-09-06
+===================
+
+  * deps: mime-types@~2.1.6
+    - deps: mime-db@~1.18.0
+
+1.2.12 / 2015-07-30
+===================
+
+  * deps: mime-types@~2.1.4
+    - deps: mime-db@~1.16.0
+
+1.2.11 / 2015-07-16
+===================
+
+  * deps: mime-types@~2.1.3
+    - deps: mime-db@~1.15.0
+
+1.2.10 / 2015-07-01
+===================
+
+  * deps: mime-types@~2.1.2
+    - deps: mime-db@~1.14.0
+
+1.2.9 / 2015-06-08
+==================
+
+  * deps: mime-types@~2.1.1
+    - perf: fix deopt during mapping
+
+1.2.8 / 2015-06-07
+==================
+
+  * deps: mime-types@~2.1.0
+    - deps: mime-db@~1.13.0
+  * perf: avoid argument reassignment & argument slice
+  * perf: avoid negotiator recursive construction
+  * perf: enable strict mode
+  * perf: remove unnecessary bitwise operator
+
+1.2.7 / 2015-05-10
+==================
+
+  * deps: negotiator@0.5.3
+    - Fix media type parameter matching to be case-insensitive
+
+1.2.6 / 2015-05-07
+==================
+
+  * deps: mime-types@~2.0.11
+    - deps: mime-db@~1.9.1
+  * deps: negotiator@0.5.2
+    - Fix comparing media types with quoted values
+    - Fix splitting media types with quoted commas
+
+1.2.5 / 2015-03-13
+==================
+
+  * deps: mime-types@~2.0.10
+    - deps: mime-db@~1.8.0
+
+1.2.4 / 2015-02-14
+==================
+
+  * Support Node.js 0.6
+  * deps: mime-types@~2.0.9
+    - deps: mime-db@~1.7.0
+  * deps: negotiator@0.5.1
+    - Fix preference sorting to be stable for long acceptable lists
+
+1.2.3 / 2015-01-31
+==================
+
+  * deps: mime-types@~2.0.8
+    - deps: mime-db@~1.6.0
+
+1.2.2 / 2014-12-30
+==================
+
+  * deps: mime-types@~2.0.7
+    - deps: mime-db@~1.5.0
+
+1.2.1 / 2014-12-30
+==================
+
+  * deps: mime-types@~2.0.5
+    - deps: mime-db@~1.3.1
+
+1.2.0 / 2014-12-19
+==================
+
+  * deps: negotiator@0.5.0
+    - Fix list return order when large accepted list
+    - Fix missing identity encoding when q=0 exists
+    - Remove dynamic building of Negotiator class
+
+1.1.4 / 2014-12-10
+==================
+
+  * deps: mime-types@~2.0.4
+    - deps: mime-db@~1.3.0
+
+1.1.3 / 2014-11-09
+==================
+
+  * deps: mime-types@~2.0.3
+    - deps: mime-db@~1.2.0
+
+1.1.2 / 2014-10-14
+==================
+
+  * deps: negotiator@0.4.9
+    - Fix error when media type has invalid parameter
+
+1.1.1 / 2014-09-28
+==================
+
+  * deps: mime-types@~2.0.2
+    - deps: mime-db@~1.1.0
+  * deps: negotiator@0.4.8
+    - Fix all negotiations to be case-insensitive
+    - Stable sort preferences of same quality according to client order
+
+1.1.0 / 2014-09-02
+==================
+
+  * update `mime-types`
+
+1.0.7 / 2014-07-04
+==================
+
+  * Fix wrong type returned from `type` when match after unknown extension
+
+1.0.6 / 2014-06-24
+==================
+
+  * deps: negotiator@0.4.7
+
+1.0.5 / 2014-06-20
+==================
+
+ * fix crash when unknown extension given
+
+1.0.4 / 2014-06-19
+==================
+
+  * use `mime-types`
+
+1.0.3 / 2014-06-11
+==================
+
+  * deps: negotiator@0.4.6
+    - Order by specificity when quality is the same
+
+1.0.2 / 2014-05-29
+==================
+
+  * Fix interpretation when header not in request
+  * deps: pin negotiator@0.4.5
+
+1.0.1 / 2014-01-18
+==================
+
+  * Identity encoding isn't always acceptable
+  * deps: negotiator@~0.4.0
+
+1.0.0 / 2013-12-27
+==================
+
+  * Genesis
diff --git a/helloworld/node_modules/accepts/LICENSE b/helloworld/node_modules/accepts/LICENSE
new file mode 100755
index 0000000..0616607
--- /dev/null
+++ b/helloworld/node_modules/accepts/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/accepts/README.md b/helloworld/node_modules/accepts/README.md
new file mode 100755
index 0000000..6a2749a
--- /dev/null
+++ b/helloworld/node_modules/accepts/README.md
@@ -0,0 +1,143 @@
+# accepts
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Higher level content negotiation based on [negotiator](https://www.npmjs.com/package/negotiator).
+Extracted from [koa](https://www.npmjs.com/package/koa) for general use.
+
+In addition to negotiator, it allows:
+
+- Allows types as an array or arguments list, ie `(['text/html', 'application/json'])`
+  as well as `('text/html', 'application/json')`.
+- Allows type shorthands such as `json`.
+- Returns `false` when no types match
+- Treats non-existent headers as `*`
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install accepts
+```
+
+## API
+
+<!-- eslint-disable no-unused-vars -->
+
+```js
+var accepts = require('accepts')
+```
+
+### accepts(req)
+
+Create a new `Accepts` object for the given `req`.
+
+#### .charset(charsets)
+
+Return the first accepted charset. If nothing in `charsets` is accepted,
+then `false` is returned.
+
+#### .charsets()
+
+Return the charsets that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .encoding(encodings)
+
+Return the first accepted encoding. If nothing in `encodings` is accepted,
+then `false` is returned.
+
+#### .encodings()
+
+Return the encodings that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .language(languages)
+
+Return the first accepted language. If nothing in `languages` is accepted,
+then `false` is returned.
+
+#### .languages()
+
+Return the languages that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .type(types)
+
+Return the first accepted type (and it is returned as the same text as what
+appears in the `types` array). If nothing in `types` is accepted, then `false`
+is returned.
+
+The `types` array can contain full MIME types or file extensions. Any value
+that is not a full MIME types is passed to `require('mime-types').lookup`.
+
+#### .types()
+
+Return the types that the request accepts, in the order of the client's
+preference (most preferred first).
+
+## Examples
+
+### Simple type negotiation
+
+This simple example shows how to use `accepts` to return a different typed
+respond body based on what the client wants to accept. The server lists it's
+preferences in order and will get back the best match between the client and
+server.
+
+```js
+var accepts = require('accepts')
+var http = require('http')
+
+function app (req, res) {
+  var accept = accepts(req)
+
+  // the order of this list is significant; should be server preferred order
+  switch (accept.type(['json', 'html'])) {
+    case 'json':
+      res.setHeader('Content-Type', 'application/json')
+      res.write('{"hello":"world!"}')
+      break
+    case 'html':
+      res.setHeader('Content-Type', 'text/html')
+      res.write('<b>hello, world!</b>')
+      break
+    default:
+      // the fallback is text/plain, so no need to specify it above
+      res.setHeader('Content-Type', 'text/plain')
+      res.write('hello, world!')
+      break
+  }
+
+  res.end()
+}
+
+http.createServer(app).listen(3000)
+```
+
+You can test this out with the cURL program:
+```sh
+curl -I -H'Accept: text/html' http://localhost:3000/
+```
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/accepts.svg
+[npm-url]: https://npmjs.org/package/accepts
+[node-version-image]: https://img.shields.io/node/v/accepts.svg
+[node-version-url]: https://nodejs.org/en/download/
+[travis-image]: https://img.shields.io/travis/jshttp/accepts/master.svg
+[travis-url]: https://travis-ci.org/jshttp/accepts
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/accepts/master.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/accepts
+[downloads-image]: https://img.shields.io/npm/dm/accepts.svg
+[downloads-url]: https://npmjs.org/package/accepts
diff --git a/helloworld/node_modules/accepts/index.js b/helloworld/node_modules/accepts/index.js
new file mode 100755
index 0000000..e9b2f63
--- /dev/null
+++ b/helloworld/node_modules/accepts/index.js
@@ -0,0 +1,238 @@
+/*!
+ * accepts
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var Negotiator = require('negotiator')
+var mime = require('mime-types')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = Accepts
+
+/**
+ * Create a new Accepts object for the given req.
+ *
+ * @param {object} req
+ * @public
+ */
+
+function Accepts (req) {
+  if (!(this instanceof Accepts)) {
+    return new Accepts(req)
+  }
+
+  this.headers = req.headers
+  this.negotiator = new Negotiator(req)
+}
+
+/**
+ * Check if the given `type(s)` is acceptable, returning
+ * the best match when true, otherwise `undefined`, in which
+ * case you should respond with 406 "Not Acceptable".
+ *
+ * The `type` value may be a single mime type string
+ * such as "application/json", the extension name
+ * such as "json" or an array `["json", "html", "text/plain"]`. When a list
+ * or array is given the _best_ match, if any is returned.
+ *
+ * Examples:
+ *
+ *     // Accept: text/html
+ *     this.types('html');
+ *     // => "html"
+ *
+ *     // Accept: text/*, application/json
+ *     this.types('html');
+ *     // => "html"
+ *     this.types('text/html');
+ *     // => "text/html"
+ *     this.types('json', 'text');
+ *     // => "json"
+ *     this.types('application/json');
+ *     // => "application/json"
+ *
+ *     // Accept: text/*, application/json
+ *     this.types('image/png');
+ *     this.types('png');
+ *     // => undefined
+ *
+ *     // Accept: text/*;q=.5, application/json
+ *     this.types(['html', 'json']);
+ *     this.types('html', 'json');
+ *     // => "json"
+ *
+ * @param {String|Array} types...
+ * @return {String|Array|Boolean}
+ * @public
+ */
+
+Accepts.prototype.type =
+Accepts.prototype.types = function (types_) {
+  var types = types_
+
+  // support flattened arguments
+  if (types && !Array.isArray(types)) {
+    types = new Array(arguments.length)
+    for (var i = 0; i < types.length; i++) {
+      types[i] = arguments[i]
+    }
+  }
+
+  // no types, return all requested types
+  if (!types || types.length === 0) {
+    return this.negotiator.mediaTypes()
+  }
+
+  // no accept header, return first given type
+  if (!this.headers.accept) {
+    return types[0]
+  }
+
+  var mimes = types.map(extToMime)
+  var accepts = this.negotiator.mediaTypes(mimes.filter(validMime))
+  var first = accepts[0]
+
+  return first
+    ? types[mimes.indexOf(first)]
+    : false
+}
+
+/**
+ * Return accepted encodings or best fit based on `encodings`.
+ *
+ * Given `Accept-Encoding: gzip, deflate`
+ * an array sorted by quality is returned:
+ *
+ *     ['gzip', 'deflate']
+ *
+ * @param {String|Array} encodings...
+ * @return {String|Array}
+ * @public
+ */
+
+Accepts.prototype.encoding =
+Accepts.prototype.encodings = function (encodings_) {
+  var encodings = encodings_
+
+  // support flattened arguments
+  if (encodings && !Array.isArray(encodings)) {
+    encodings = new Array(arguments.length)
+    for (var i = 0; i < encodings.length; i++) {
+      encodings[i] = arguments[i]
+    }
+  }
+
+  // no encodings, return all requested encodings
+  if (!encodings || encodings.length === 0) {
+    return this.negotiator.encodings()
+  }
+
+  return this.negotiator.encodings(encodings)[0] || false
+}
+
+/**
+ * Return accepted charsets or best fit based on `charsets`.
+ *
+ * Given `Accept-Charset: utf-8, iso-8859-1;q=0.2, utf-7;q=0.5`
+ * an array sorted by quality is returned:
+ *
+ *     ['utf-8', 'utf-7', 'iso-8859-1']
+ *
+ * @param {String|Array} charsets...
+ * @return {String|Array}
+ * @public
+ */
+
+Accepts.prototype.charset =
+Accepts.prototype.charsets = function (charsets_) {
+  var charsets = charsets_
+
+  // support flattened arguments
+  if (charsets && !Array.isArray(charsets)) {
+    charsets = new Array(arguments.length)
+    for (var i = 0; i < charsets.length; i++) {
+      charsets[i] = arguments[i]
+    }
+  }
+
+  // no charsets, return all requested charsets
+  if (!charsets || charsets.length === 0) {
+    return this.negotiator.charsets()
+  }
+
+  return this.negotiator.charsets(charsets)[0] || false
+}
+
+/**
+ * Return accepted languages or best fit based on `langs`.
+ *
+ * Given `Accept-Language: en;q=0.8, es, pt`
+ * an array sorted by quality is returned:
+ *
+ *     ['es', 'pt', 'en']
+ *
+ * @param {String|Array} langs...
+ * @return {Array|String}
+ * @public
+ */
+
+Accepts.prototype.lang =
+Accepts.prototype.langs =
+Accepts.prototype.language =
+Accepts.prototype.languages = function (languages_) {
+  var languages = languages_
+
+  // support flattened arguments
+  if (languages && !Array.isArray(languages)) {
+    languages = new Array(arguments.length)
+    for (var i = 0; i < languages.length; i++) {
+      languages[i] = arguments[i]
+    }
+  }
+
+  // no languages, return all requested languages
+  if (!languages || languages.length === 0) {
+    return this.negotiator.languages()
+  }
+
+  return this.negotiator.languages(languages)[0] || false
+}
+
+/**
+ * Convert extnames to mime.
+ *
+ * @param {String} type
+ * @return {String}
+ * @private
+ */
+
+function extToMime (type) {
+  return type.indexOf('/') === -1
+    ? mime.lookup(type)
+    : type
+}
+
+/**
+ * Check if mime is valid.
+ *
+ * @param {String} type
+ * @return {String}
+ * @private
+ */
+
+function validMime (type) {
+  return typeof type === 'string'
+}
diff --git a/helloworld/node_modules/after/LICENCE b/helloworld/node_modules/after/LICENCE
new file mode 100755
index 0000000..7c35130
--- /dev/null
+++ b/helloworld/node_modules/after/LICENCE
@@ -0,0 +1,19 @@
+Copyright (c) 2011 Raynos.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
\ No newline at end of file
diff --git a/helloworld/node_modules/after/README.md b/helloworld/node_modules/after/README.md
new file mode 100755
index 0000000..fc69096
--- /dev/null
+++ b/helloworld/node_modules/after/README.md
@@ -0,0 +1,115 @@
+# After [![Build Status][1]][2]
+
+Invoke callback after n calls
+
+## Status: production ready
+
+## Example
+
+```js
+var after = require("after")
+var db = require("./db") // some db.
+
+var updateUser = function (req, res) {
+  // use after to run two tasks in parallel,
+  // namely get request body and get session
+  // then run updateUser with the results
+  var next = after(2, updateUser)
+  var results = {}
+  
+  getJSONBody(req, res, function (err, body) {
+    if (err) return next(err)
+    
+    results.body = body
+    next(null, results)
+  })
+  
+  getSessionUser(req, res, function (err, user) {
+    if (err) return next(err)
+    
+    results.user = user
+    next(null, results)
+  })
+  
+  // now do the thing!
+  function updateUser(err, result) {
+    if (err) {
+      res.statusCode = 500
+      return res.end("Unexpected Error")
+    }
+    
+    if (!result.user || result.user.role !== "admin") {
+      res.statusCode = 403
+      return res.end("Permission Denied")
+    }
+    
+    db.put("users:" + req.params.userId, result.body, function (err) {
+      if (err) {
+        res.statusCode = 500
+        return res.end("Unexpected Error")
+      }
+      
+      res.statusCode = 200
+      res.end("Ok")  
+    })   
+  }
+}
+```
+
+## Naive Example
+
+```js
+var after = require("after")
+    , next = after(3, logItWorks)
+
+next()
+next()
+next() // it works
+
+function logItWorks() {
+    console.log("it works!")
+}
+```
+
+## Example with error handling
+
+```js
+var after = require("after")
+    , next = after(3, logError)
+
+next()
+next(new Error("oops")) // logs oops
+next() // does nothing
+
+// This callback is only called once.
+// If there is an error the callback gets called immediately
+// this avoids the situation where errors get lost.
+function logError(err) {
+    console.log(err)
+}
+```
+
+## Installation
+
+`npm install after`
+
+## Tests
+
+`npm test`
+
+## Contributors
+
+ - Raynos
+ - defunctzombie
+
+## MIT Licenced
+
+  [1]: https://secure.travis-ci.org/Raynos/after.png
+  [2]: http://travis-ci.org/Raynos/after
+  [3]: http://raynos.org/blog/2/Flow-control-in-node.js
+  [4]: http://stackoverflow.com/questions/6852059/determining-the-end-of-asynchronous-operations-javascript/6852307#6852307
+  [5]: http://stackoverflow.com/questions/6869872/in-javascript-what-are-best-practices-for-executing-multiple-asynchronous-functi/6870031#6870031
+  [6]: http://stackoverflow.com/questions/6864397/javascript-performance-long-running-tasks/6889419#6889419
+  [7]: http://stackoverflow.com/questions/6597493/synchronous-database-queries-with-node-js/6620091#6620091
+  [8]: http://github.com/Raynos/iterators
+  [9]: http://github.com/Raynos/composite
diff --git a/helloworld/node_modules/after/index.js b/helloworld/node_modules/after/index.js
new file mode 100755
index 0000000..ec24879
--- /dev/null
+++ b/helloworld/node_modules/after/index.js
@@ -0,0 +1,28 @@
+module.exports = after
+
+function after(count, callback, err_cb) {
+    var bail = false
+    err_cb = err_cb || noop
+    proxy.count = count
+
+    return (count === 0) ? callback() : proxy
+
+    function proxy(err, result) {
+        if (proxy.count <= 0) {
+            throw new Error('after called too many times')
+        }
+        --proxy.count
+
+        // after first error, rest are passed to err_cb
+        if (err) {
+            bail = true
+            callback(err)
+            // future error callbacks will go to error handler
+            callback = err_cb
+        } else if (proxy.count === 0 && !bail) {
+            callback(null, result)
+        }
+    }
+}
+
+function noop() {}
diff --git a/helloworld/node_modules/after/package.json b/helloworld/node_modules/after/package.json
new file mode 100755
index 0000000..6d423f0
--- /dev/null
+++ b/helloworld/node_modules/after/package.json
@@ -0,0 +1,63 @@
+{
+  "_from": "after@0.8.2",
+  "_id": "after@0.8.2",
+  "_inBundle": false,
+  "_integrity": "sha1-/ts5T58OAqqXaOcCvaI7UF+ufh8=",
+  "_location": "/after",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "after@0.8.2",
+    "name": "after",
+    "escapedName": "after",
+    "rawSpec": "0.8.2",
+    "saveSpec": null,
+    "fetchSpec": "0.8.2"
+  },
+  "_requiredBy": [
+    "/engine.io-parser"
+  ],
+  "_resolved": "https://registry.npmjs.org/after/-/after-0.8.2.tgz",
+  "_shasum": "fedb394f9f0e02aa9768e702bda23b505fae7e1f",
+  "_spec": "after@0.8.2",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/engine.io-parser",
+  "author": {
+    "name": "Raynos",
+    "email": "raynos2@gmail.com"
+  },
+  "bugs": {
+    "url": "https://github.com/Raynos/after/issues"
+  },
+  "bundleDependencies": false,
+  "contributors": [
+    {
+      "name": "Raynos",
+      "email": "raynos2@gmail.com",
+      "url": "http://raynos.org"
+    }
+  ],
+  "deprecated": false,
+  "description": "after - tiny flow control",
+  "devDependencies": {
+    "mocha": "~1.8.1"
+  },
+  "homepage": "https://github.com/Raynos/after#readme",
+  "keywords": [
+    "flowcontrol",
+    "after",
+    "flow",
+    "control",
+    "arch"
+  ],
+  "license": "MIT",
+  "name": "after",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/Raynos/after.git"
+  },
+  "scripts": {
+    "test": "mocha --ui tdd --reporter spec test/*.js"
+  },
+  "version": "0.8.2"
+}
diff --git a/helloworld/node_modules/after/test/after-test.js b/helloworld/node_modules/after/test/after-test.js
new file mode 100755
index 0000000..0d63f4c
--- /dev/null
+++ b/helloworld/node_modules/after/test/after-test.js
@@ -0,0 +1,120 @@
+/*global suite, test*/
+
+var assert = require("assert")
+    , after = require("../")
+
+test("exists", function () {
+    assert(typeof after === "function", "after is not a function")
+})
+
+test("after when called with 0 invokes", function (done) {
+    after(0, done)
+});
+
+test("after 1", function (done) {
+    var next = after(1, done)
+    next()
+})
+
+test("after 5", function (done) {
+    var next = after(5, done)
+    , i = 5
+
+    while (i--) {
+        next()
+    }
+})
+
+test("manipulate count", function (done) {
+    var next = after(1, done)
+    , i = 5
+
+    next.count = i
+    while (i--) {
+        next()
+    }
+})
+
+test("after terminates on error", function (done) {
+    var next = after(2, function(err) {
+        assert.equal(err.message, 'test');
+        done();
+    })
+    next(new Error('test'))
+    next(new Error('test2'))
+})
+
+test('gee', function(done) {
+    done = after(2, done)
+
+    function cb(err) {
+        assert.equal(err.message, 1);
+        done()
+    }
+
+    var next = after(3, cb, function(err) {
+        assert.equal(err.message, 2)
+        done()
+    });
+
+    next()
+    next(new Error(1))
+    next(new Error(2))
+})
+
+test('eee', function(done) {
+    done = after(3, done)
+
+    function cb(err) {
+        assert.equal(err.message, 1);
+        done()
+    }
+
+    var next = after(3, cb, function(err) {
+        assert.equal(err.message, 2)
+        done()
+    });
+
+    next(new Error(1))
+    next(new Error(2))
+    next(new Error(2))
+})
+
+test('gge', function(done) {
+    function cb(err) {
+        assert.equal(err.message, 1);
+        done()
+    }
+
+    var next = after(3, cb, function(err) {
+        // should not happen
+        assert.ok(false);
+    });
+
+    next()
+    next()
+    next(new Error(1))
+})
+
+test('egg', function(done) {
+    function cb(err) {
+        assert.equal(err.message, 1);
+        done()
+    }
+
+    var next = after(3, cb, function(err) {
+        // should not happen
+        assert.ok(false);
+    });
+
+    next(new Error(1))
+    next()
+    next()
+})
+
+test('throws on too many calls', function(done) {
+    var next = after(1, done);
+    next()
+    assert.throws(next, /after called too many times/);
+});
+
diff --git a/helloworld/node_modules/androidjs/LICENSE b/helloworld/node_modules/androidjs/LICENSE
new file mode 100755
index 0000000..775c4c1
--- /dev/null
+++ b/helloworld/node_modules/androidjs/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 androidjs
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/helloworld/node_modules/androidjs/example/index.html b/helloworld/node_modules/androidjs/example/index.html
new file mode 100755
index 0000000..56dd986
--- /dev/null
+++ b/helloworld/node_modules/androidjs/example/index.html
@@ -0,0 +1,24 @@
+<html>
+    <head>
+        <!-- <script src = "https://cdnjs.cloudflare.com/ajax/libs/socket.io/2.2.0/socket.io.js"></script> -->
+        <script src = "../lib/front.js"></script>
+    </head>
+    <body></body>
+</html>
+<script>
+    // front.send('hello');
+
+    front.send('show-details', {name:'harry'});
+    front.sendSync('get');
+    front.on('get-result', function(response){
+        console.log(response);
+    })
+
+    front.sendSync('get-data',{name:'harry'});
+    front.on('get-data-result', function(response){
+        console.log(response);
+    })
+    front.on('hello', function(res){
+        console.log(res);
+    })
+</script>
\ No newline at end of file
diff --git a/helloworld/node_modules/androidjs/example/test.js b/helloworld/node_modules/androidjs/example/test.js
new file mode 100755
index 0000000..7e19c78
--- /dev/null
+++ b/helloworld/node_modules/androidjs/example/test.js
@@ -0,0 +1,30 @@
+var back = require('../lib/back.js').back;
+// var app = require('./index.js').app;
+// console.log(back);
+
+
+
+back.on('hello', function(event){
+    console.log('hello');
+})
+
+back.on('show-details', function(data){
+    console.log(data);
+})
+// back.send('hello');
+back.on('get', function(data){
+    return 'hello get';
+})
+
+back.on('get-data', function(data){
+    console.log(data);
+    data.age = 15;
+    return data;
+})
+// console.log(app.getPath());
+setInterval(function(){
+    back.send('hello', 'harry');
+}, 5000);
+// while(true){
+//     back.send('hello', 'harry');
+// }
\ No newline at end of file
diff --git a/helloworld/node_modules/androidjs/index.js b/helloworld/node_modules/androidjs/index.js
new file mode 100755
index 0000000..1761e0a
--- /dev/null
+++ b/helloworld/node_modules/androidjs/index.js
@@ -0,0 +1,2 @@
+module.exports.back = require('./lib/back.js').back
+module.exports.io = require('./lib/back.js').io
\ No newline at end of file
diff --git a/helloworld/node_modules/androidjs/lib/back.js b/helloworld/node_modules/androidjs/lib/back.js
new file mode 100755
index 0000000..b7b808e
--- /dev/null
+++ b/helloworld/node_modules/androidjs/lib/back.js
@@ -0,0 +1,79 @@
+const path = require("path");
+const http = require('http').createServer()
+const io = require("socket.io")(http);
+
+http.listen(3000);
+
+var clients = []
+
+listerners = {};
+    io.on('connection', function (socket) {
+        // console.log('user connected');
+        clients.push(socket);
+        socket.on('response-from-front', function (event, ...args) {
+            // console.log('get response from front');
+            let fns = listerners[event];
+            if (!fns) return false;
+            fns.forEach(function (f) {
+              f(...args);
+            });
+            return true;
+        });
+        socket.on('sync-response-from-front', function(event, ...args){
+            // console.log('sync get response from front');
+            let fns = listerners[event];
+            if (!fns) return false;
+            fns.forEach(function (f) {
+              var response = f(...args);
+            //   console.log(response)
+              socket.emit('sync-response', event ,response);
+            });
+            return true;
+        })
+      });
+module.exports.back = {
+    listerners:listerners, on:on, send:send
+}
+
+module.exports.io = io;
+
+function addListener(event, fn) {
+    listerners[event] = listerners[event] || [];
+    listerners[event].push(fn);
+}
+
+function on(event, fn){
+    addListener(event, fn);
+}
+
+function exeFunction(evemt, ...args){
+    let fns = listeners[eventName];
+    if (!fns) return false;
+    fns.forEach(function (f) {
+      f(...args);
+    });
+    return true;
+}
+
+
+function send(event, ...args){
+    // console.log('called send');
+    for(let i = 0; i < clients.length; i++){
+      // console.log('send Client');
+      clients[i].emit('response-from-back', event, ...args)
+    }
+}
+
+
+io.on('connection', function (socket) {
+    // console.log('user connected');
+    front = socket;
+    socket.on('reponse-from-front', function (event, ...args) {
+        let fns = listeners[eventName];
+        if (!fns) return false;
+        fns.forEach(function (f) {
+          f(...args);
+        });
+        return true;
+    });
+  });
\ No newline at end of file
diff --git a/helloworld/node_modules/androidjs/lib/front.js b/helloworld/node_modules/androidjs/lib/front.js
new file mode 100755
index 0000000..a88c158
--- /dev/null
+++ b/helloworld/node_modules/androidjs/lib/front.js
@@ -0,0 +1,61 @@
+
+/*!
+ * Socket.IO v2.2.0
+ * (c) 2014-2018 Guillermo Rauch
+ * Released under the MIT License.
+ */
+!function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):"object"==typeof exports?exports.io=e():t.io=e()}(this,function(){return function(t){function e(r){if(n[r])return n[r].exports;var o=n[r]={exports:{},id:r,loaded:!1};return t[r].call(o.exports,o,o.exports,e),o.loaded=!0,o.exports}var n={};return e.m=t,e.c=n,e.p="",e(0)}([function(t,e,n){"use strict";function r(t,e){"object"===("undefined"==typeof t?"undefined":o(t))&&(e=t,t=void 0),e=e||{};var n,r=i(t),s=r.source,u=r.id,h=r.path,f=p[u]&&h in p[u].nsps,l=e.forceNew||e["force new connection"]||!1===e.multiplex||f;return l?(c("ignoring socket cache for %s",s),n=a(s,e)):(p[u]||(c("new io instance for %s",s),p[u]=a(s,e)),n=p[u]),r.query&&!e.query&&(e.query=r.query),n.socket(r.path,e)}var o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof 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arguments.length?(this._randomizationFactor=t,this.backoff&&this.backoff.setJitter(t),this):this._randomizationFactor},r.prototype.reconnectionDelayMax=function(t){return arguments.length?(this._reconnectionDelayMax=t,this.backoff&&this.backoff.setMax(t),this):this._reconnectionDelayMax},r.prototype.timeout=function(t){return arguments.length?(this._timeout=t,this):this._timeout},r.prototype.maybeReconnectOnOpen=function(){!this.reconnecting&&this._reconnection&&0===this.backoff.attempts&&this.reconnect()},r.prototype.open=r.prototype.connect=function(t,e){if(h("readyState %s",this.readyState),~this.readyState.indexOf("open"))return this;h("opening %s",this.uri),this.engine=i(this.uri,this.opts);var n=this.engine,r=this;this.readyState="opening",this.skipReconnect=!1;var o=p(n,"open",function(){r.onopen(),t&&t()}),s=p(n,"error",function(e){if(h("connect_error"),r.cleanup(),r.readyState="closed",r.emitAll("connect_error",e),t){var n=new Error("Connection error");n.data=e,t(n)}else 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Date-this.lastPing)},r.prototype.ondata=function(t){this.decoder.add(t)},r.prototype.ondecoded=function(t){this.emit("packet",t)},r.prototype.onerror=function(t){h("error",t),this.emitAll("error",t)},r.prototype.socket=function(t,e){function n(){~f(o.connecting,r)||o.connecting.push(r)}var r=this.nsps[t];if(!r){r=new s(this,t,e),this.nsps[t]=r;var o=this;r.on("connecting",n),r.on("connect",function(){r.id=o.generateId(t)}),this.autoConnect&&n()}return r},r.prototype.destroy=function(t){var e=f(this.connecting,t);~e&&this.connecting.splice(e,1),this.connecting.length||this.close()},r.prototype.packet=function(t){h("writing packet %j",t);var e=this;t.query&&0===t.type&&(t.nsp+="?"+t.query),e.encoding?e.packetBuffer.push(t):(e.encoding=!0,this.encoder.encode(t,function(n){for(var r=0;r<n.length;r++)e.engine.write(n[r],t.options);e.encoding=!1,e.processPacketQueue()}))},r.prototype.processPacketQueue=function(){if(this.packetBuffer.length>0&&!this.encoding){var t=this.packetBuffer.shift();this.packet(t)}},r.prototype.cleanup=function(){h("cleanup");for(var t=this.subs.length,e=0;e<t;e++){var n=this.subs.shift();n.destroy()}this.packetBuffer=[],this.encoding=!1,this.lastPing=null,this.decoder.destroy()},r.prototype.close=r.prototype.disconnect=function(){h("disconnect"),this.skipReconnect=!0,this.reconnecting=!1,"opening"===this.readyState&&this.cleanup(),this.backoff.reset(),this.readyState="closed",this.engine&&this.engine.close()},r.prototype.onclose=function(t){h("onclose"),this.cleanup(),this.backoff.reset(),this.readyState="closed",this.emit("close",t),this._reconnection&&!this.skipReconnect&&this.reconnect()},r.prototype.reconnect=function(){if(this.reconnecting||this.skipReconnect)return this;var t=this;if(this.backoff.attempts>=this._reconnectionAttempts)h("reconnect failed"),this.backoff.reset(),this.emitAll("reconnect_failed"),this.reconnecting=!1;else{var e=this.backoff.duration();h("will wait %dms before reconnect attempt",e),this.reconnecting=!0;var n=setTimeout(function(){t.skipReconnect||(h("attempting reconnect"),t.emitAll("reconnect_attempt",t.backoff.attempts),t.emitAll("reconnecting",t.backoff.attempts),t.skipReconnect||t.open(function(e){e?(h("reconnect attempt error"),t.reconnecting=!1,t.reconnect(),t.emitAll("reconnect_error",e.data)):(h("reconnect success"),t.onreconnect())}))},e);this.subs.push({destroy:function(){clearTimeout(n)}})}},r.prototype.onreconnect=function(){var t=this.backoff.attempts;this.reconnecting=!1,this.backoff.reset(),this.updateSocketIds(),this.emitAll("reconnect",t)}},function(t,e,n){t.exports=n(14),t.exports.parser=n(21)},function(t,e,n){function r(t,e){return this instanceof r?(e=e||{},t&&"object"==typeof t&&(e=t,t=null),t?(t=u(t),e.hostname=t.host,e.secure="https"===t.protocol||"wss"===t.protocol,e.port=t.port,t.query&&(e.query=t.query)):e.host&&(e.hostname=u(e.host).host),this.secure=null!=e.secure?e.secure:"undefined"!=typeof location&&"https:"===location.protocol,e.hostname&&!e.port&&(e.port=this.secure?"443":"80"),this.agent=e.agent||!1,this.hostname=e.hostname||("undefined"!=typeof location?location.hostname:"localhost"),this.port=e.port||("undefined"!=typeof location&&location.port?location.port:this.secure?443:80),this.query=e.query||{},"string"==typeof this.query&&(this.query=h.decode(this.query)),this.upgrade=!1!==e.upgrade,this.path=(e.path||"/engine.io").replace(/\/$/,"")+"/",this.forceJSONP=!!e.forceJSONP,this.jsonp=!1!==e.jsonp,this.forceBase64=!!e.forceBase64,this.enablesXDR=!!e.enablesXDR,this.timestampParam=e.timestampParam||"t",this.timestampRequests=e.timestampRequests,this.transports=e.transports||["polling","websocket"],this.transportOptions=e.transportOptions||{},this.readyState="",this.writeBuffer=[],this.prevBufferLen=0,this.policyPort=e.policyPort||843,this.rememberUpgrade=e.rememberUpgrade||!1,this.binaryType=null,this.onlyBinaryUpgrades=e.onlyBinaryUpgrades,this.perMessageDeflate=!1!==e.perMessageDeflate&&(e.perMessageDeflate||{}),!0===this.perMessageDeflate&&(this.perMessageDeflate={}),this.perMessageDeflate&&null==this.perMessageDeflate.threshold&&(this.perMessageDeflate.threshold=1024),this.pfx=e.pfx||null,this.key=e.key||null,this.passphrase=e.passphrase||null,this.cert=e.cert||null,this.ca=e.ca||null,this.ciphers=e.ciphers||null,this.rejectUnauthorized=void 0===e.rejectUnauthorized||e.rejectUnauthorized,this.forceNode=!!e.forceNode,this.isReactNative="undefined"!=typeof navigator&&"string"==typeof navigator.product&&"reactnative"===navigator.product.toLowerCase(),("undefined"==typeof self||this.isReactNative)&&(e.extraHeaders&&Object.keys(e.extraHeaders).length>0&&(this.extraHeaders=e.extraHeaders),e.localAddress&&(this.localAddress=e.localAddress)),this.id=null,this.upgrades=null,this.pingInterval=null,this.pingTimeout=null,this.pingIntervalTimer=null,this.pingTimeoutTimer=null,void this.open()):new r(t,e)}function o(t){var e={};for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n]);return e}var i=n(15),s=n(8),a=n(3)("engine.io-client:socket"),c=n(35),p=n(21),u=n(2),h=n(29);t.exports=r,r.priorWebsocketSuccess=!1,s(r.prototype),r.protocol=p.protocol,r.Socket=r,r.Transport=n(20),r.transports=n(15),r.parser=n(21),r.prototype.createTransport=function(t){a('creating transport "%s"',t);var e=o(this.query);e.EIO=p.protocol,e.transport=t;var n=this.transportOptions[t]||{};this.id&&(e.sid=this.id);var r=new i[t]({query:e,socket:this,agent:n.agent||this.agent,hostname:n.hostname||this.hostname,port:n.port||this.port,secure:n.secure||this.secure,path:n.path||this.path,forceJSONP:n.forceJSONP||this.forceJSONP,jsonp:n.jsonp||this.jsonp,forceBase64:n.forceBase64||this.forceBase64,enablesXDR:n.enablesXDR||this.enablesXDR,timestampRequests:n.timestampRequests||this.timestampRequests,timestampParam:n.timestampParam||this.timestampParam,policyPort:n.policyPort||this.policyPort,pfx:n.pfx||this.pfx,key:n.key||this.key,passphrase:n.passphrase||this.passphrase,cert:n.cert||this.cert,ca:n.ca||this.ca,ciphers:n.ciphers||this.ciphers,rejectUnauthorized:n.rejectUnauthorized||this.rejectUnauthorized,perMessageDeflate:n.perMessageDeflate||this.perMessageDeflate,extraHeaders:n.extraHeaders||this.extraHeaders,forceNode:n.forceNode||this.forceNode,localAddress:n.localAddress||this.localAddress,requestTimeout:n.requestTimeout||this.requestTimeout,protocols:n.protocols||void 0,isReactNative:this.isReactNative});return r},r.prototype.open=function(){var t;if(this.rememberUpgrade&&r.priorWebsocketSuccess&&this.transports.indexOf("websocket")!==-1)t="websocket";else{if(0===this.transports.length){var e=this;return void setTimeout(function(){e.emit("error","No transports available")},0)}t=this.transports[0]}this.readyState="opening";try{t=this.createTransport(t)}catch(n){return this.transports.shift(),void this.open()}t.open(),this.setTransport(t)},r.prototype.setTransport=function(t){a("setting transport %s",t.name);var e=this;this.transport&&(a("clearing existing transport %s",this.transport.name),this.transport.removeAllListeners()),this.transport=t,t.on("drain",function(){e.onDrain()}).on("packet",function(t){e.onPacket(t)}).on("error",function(t){e.onError(t)}).on("close",function(){e.onClose("transport close")})},r.prototype.probe=function(t){function e(){if(f.onlyBinaryUpgrades){var e=!this.supportsBinary&&f.transport.supportsBinary;h=h||e}h||(a('probe transport "%s" opened',t),u.send([{type:"ping",data:"probe"}]),u.once("packet",function(e){if(!h)if("pong"===e.type&&"probe"===e.data){if(a('probe transport "%s" pong',t),f.upgrading=!0,f.emit("upgrading",u),!u)return;r.priorWebsocketSuccess="websocket"===u.name,a('pausing current transport "%s"',f.transport.name),f.transport.pause(function(){h||"closed"!==f.readyState&&(a("changing transport and sending upgrade packet"),p(),f.setTransport(u),u.send([{type:"upgrade"}]),f.emit("upgrade",u),u=null,f.upgrading=!1,f.flush())})}else{a('probe transport "%s" failed',t);var n=new Error("probe error");n.transport=u.name,f.emit("upgradeError",n)}}))}function n(){h||(h=!0,p(),u.close(),u=null)}function o(e){var r=new Error("probe error: "+e);r.transport=u.name,n(),a('probe transport "%s" failed because of error: %s',t,e),f.emit("upgradeError",r)}function i(){o("transport closed")}function s(){o("socket closed")}function c(t){u&&t.name!==u.name&&(a('"%s" works - aborting "%s"',t.name,u.name),n())}function p(){u.removeListener("open",e),u.removeListener("error",o),u.removeListener("close",i),f.removeListener("close",s),f.removeListener("upgrading",c)}a('probing transport "%s"',t);var u=this.createTransport(t,{probe:1}),h=!1,f=this;r.priorWebsocketSuccess=!1,u.once("open",e),u.once("error",o),u.once("close",i),this.once("close",s),this.once("upgrading",c),u.open()},r.prototype.onOpen=function(){if(a("socket open"),this.readyState="open",r.priorWebsocketSuccess="websocket"===this.transport.name,this.emit("open"),this.flush(),"open"===this.readyState&&this.upgrade&&this.transport.pause){a("starting upgrade probes");for(var t=0,e=this.upgrades.length;t<e;t++)this.probe(this.upgrades[t])}},r.prototype.onPacket=function(t){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState)switch(a('socket receive: type "%s", data "%s"',t.type,t.data),this.emit("packet",t),this.emit("heartbeat"),t.type){case"open":this.onHandshake(JSON.parse(t.data));break;case"pong":this.setPing(),this.emit("pong");break;case"error":var e=new Error("server error");e.code=t.data,this.onError(e);break;case"message":this.emit("data",t.data),this.emit("message",t.data)}else a('packet received with socket readyState "%s"',this.readyState)},r.prototype.onHandshake=function(t){this.emit("handshake",t),this.id=t.sid,this.transport.query.sid=t.sid,this.upgrades=this.filterUpgrades(t.upgrades),this.pingInterval=t.pingInterval,this.pingTimeout=t.pingTimeout,this.onOpen(),"closed"!==this.readyState&&(this.setPing(),this.removeListener("heartbeat",this.onHeartbeat),this.on("heartbeat",this.onHeartbeat))},r.prototype.onHeartbeat=function(t){clearTimeout(this.pingTimeoutTimer);var e=this;e.pingTimeoutTimer=setTimeout(function(){"closed"!==e.readyState&&e.onClose("ping timeout")},t||e.pingInterval+e.pingTimeout)},r.prototype.setPing=function(){var t=this;clearTimeout(t.pingIntervalTimer),t.pingIntervalTimer=setTimeout(function(){a("writing ping packet - expecting pong within %sms",t.pingTimeout),t.ping(),t.onHeartbeat(t.pingTimeout)},t.pingInterval)},r.prototype.ping=function(){var t=this;this.sendPacket("ping",function(){t.emit("ping")})},r.prototype.onDrain=function(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,0===this.writeBuffer.length?this.emit("drain"):this.flush()},r.prototype.flush=function(){"closed"!==this.readyState&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length&&(a("flushing %d packets in socket",this.writeBuffer.length),this.transport.send(this.writeBuffer),this.prevBufferLen=this.writeBuffer.length,this.emit("flush"))},r.prototype.write=r.prototype.send=function(t,e,n){return this.sendPacket("message",t,e,n),this},r.prototype.sendPacket=function(t,e,n,r){if("function"==typeof e&&(r=e,e=void 0),"function"==typeof n&&(r=n,n=null),"closing"!==this.readyState&&"closed"!==this.readyState){n=n||{},n.compress=!1!==n.compress;var o={type:t,data:e,options:n};this.emit("packetCreate",o),this.writeBuffer.push(o),r&&this.once("flush",r),this.flush()}},r.prototype.close=function(){function t(){r.onClose("forced close"),a("socket closing - telling transport to close"),r.transport.close()}function e(){r.removeListener("upgrade",e),r.removeListener("upgradeError",e),t()}function n(){r.once("upgrade",e),r.once("upgradeError",e)}if("opening"===this.readyState||"open"===this.readyState){this.readyState="closing";var r=this;this.writeBuffer.length?this.once("drain",function(){this.upgrading?n():t()}):this.upgrading?n():t()}return this},r.prototype.onError=function(t){a("socket error %j",t),r.priorWebsocketSuccess=!1,this.emit("error",t),this.onClose("transport error",t)},r.prototype.onClose=function(t,e){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState){a('socket close with reason: "%s"',t);var n=this;clearTimeout(this.pingIntervalTimer),clearTimeout(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),this.readyState="closed",this.id=null,this.emit("close",t,e),n.writeBuffer=[],n.prevBufferLen=0}},r.prototype.filterUpgrades=function(t){for(var e=[],n=0,r=t.length;n<r;n++)~c(this.transports,t[n])&&e.push(t[n]);return e}},function(t,e,n){function r(t){var e,n=!1,r=!1,a=!1!==t.jsonp;
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o(t){if(c.call(this,t),this.requestTimeout=t.requestTimeout,this.extraHeaders=t.extraHeaders,"undefined"!=typeof location){var e="https:"===location.protocol,n=location.port;n||(n=e?443:80),this.xd="undefined"!=typeof location&&t.hostname!==location.hostname||n!==t.port,this.xs=t.secure!==e}}function i(t){this.method=t.method||"GET",this.uri=t.uri,this.xd=!!t.xd,this.xs=!!t.xs,this.async=!1!==t.async,this.data=void 0!==t.data?t.data:null,this.agent=t.agent,this.isBinary=t.isBinary,this.supportsBinary=t.supportsBinary,this.enablesXDR=t.enablesXDR,this.requestTimeout=t.requestTimeout,this.pfx=t.pfx,this.key=t.key,this.passphrase=t.passphrase,this.cert=t.cert,this.ca=t.ca,this.ciphers=t.ciphers,this.rejectUnauthorized=t.rejectUnauthorized,this.extraHeaders=t.extraHeaders,this.create()}function s(){for(var t in i.requests)i.requests.hasOwnProperty(t)&&i.requests[t].abort()}var a=n(16),c=n(19),p=n(8),u=n(30),h=n(3)("engine.io-client:polling-xhr");if(t.exports=o,t.exports.Request=i,u(o,c),o.prototype.supportsBinary=!0,o.prototype.request=function(t){return t=t||{},t.uri=this.uri(),t.xd=this.xd,t.xs=this.xs,t.agent=this.agent||!1,t.supportsBinary=this.supportsBinary,t.enablesXDR=this.enablesXDR,t.pfx=this.pfx,t.key=this.key,t.passphrase=this.passphrase,t.cert=this.cert,t.ca=this.ca,t.ciphers=this.ciphers,t.rejectUnauthorized=this.rejectUnauthorized,t.requestTimeout=this.requestTimeout,t.extraHeaders=this.extraHeaders,new i(t)},o.prototype.doWrite=function(t,e){var n="string"!=typeof t&&void 0!==t,r=this.request({method:"POST",data:t,isBinary:n}),o=this;r.on("success",e),r.on("error",function(t){o.onError("xhr post error",t)}),this.sendXhr=r},o.prototype.doPoll=function(){h("xhr poll");var t=this.request(),e=this;t.on("data",function(t){e.onData(t)}),t.on("error",function(t){e.onError("xhr poll error",t)}),this.pollXhr=t},p(i.prototype),i.prototype.create=function(){var t={agent:this.agent,xdomain:this.xd,xscheme:this.xs,enablesXDR:this.enablesXDR};t.pfx=this.pfx,t.key=this.key,t.passphrase=this.passphrase,t.cert=this.cert,t.ca=this.ca,t.ciphers=this.ciphers,t.rejectUnauthorized=this.rejectUnauthorized;var e=this.xhr=new a(t),n=this;try{h("xhr open %s: %s",this.method,this.uri),e.open(this.method,this.uri,this.async);try{if(this.extraHeaders){e.setDisableHeaderCheck&&e.setDisableHeaderCheck(!0);for(var r in this.extraHeaders)this.extraHeaders.hasOwnProperty(r)&&e.setRequestHeader(r,this.extraHeaders[r])}}catch(o){}if("POST"===this.method)try{this.isBinary?e.setRequestHeader("Content-type","application/octet-stream"):e.setRequestHeader("Content-type","text/plain;charset=UTF-8")}catch(o){}try{e.setRequestHeader("Accept","*/*")}catch(o){}"withCredentials"in 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i,s=document.createElement("form"),a=document.createElement("textarea"),c=this.iframeId="eio_iframe_"+this.index;s.className="socketio",s.style.position="absolute",s.style.top="-1000px",s.style.left="-1000px",s.target=c,s.method="POST",s.setAttribute("accept-charset","utf-8"),a.name="d",s.appendChild(a),document.body.appendChild(s),this.form=s,this.area=a}this.form.action=this.uri(),r(),t=t.replace(u,"\\\n"),this.area.value=t.replace(p,"\\n");try{this.form.submit()}catch(h){}this.iframe.attachEvent?this.iframe.onreadystatechange=function(){"complete"===o.iframe.readyState&&n()}:this.iframe.onload=n}}).call(e,function(){return this}())},function(t,e,n){function r(t){var e=t&&t.forceBase64;e&&(this.supportsBinary=!1),this.perMessageDeflate=t.perMessageDeflate,this.usingBrowserWebSocket=o&&!t.forceNode,this.protocols=t.protocols,this.usingBrowserWebSocket||(l=i),s.call(this,t)}var o,i,s=n(20),a=n(21),c=n(29),p=n(30),u=n(31),h=n(3)("engine.io-client:websocket");if("undefined"==typeof self)try{i=n(34)}catch(f){}else o=self.WebSocket||self.MozWebSocket;var l=o||i;t.exports=r,p(r,s),r.prototype.name="websocket",r.prototype.supportsBinary=!0,r.prototype.doOpen=function(){if(this.check()){var t=this.uri(),e=this.protocols,n={agent:this.agent,perMessageDeflate:this.perMessageDeflate};n.pfx=this.pfx,n.key=this.key,n.passphrase=this.passphrase,n.cert=this.cert,n.ca=this.ca,n.ciphers=this.ciphers,n.rejectUnauthorized=this.rejectUnauthorized,this.extraHeaders&&(n.headers=this.extraHeaders),this.localAddress&&(n.localAddress=this.localAddress);try{this.ws=this.usingBrowserWebSocket&&!this.isReactNative?e?new l(t,e):new l(t):new l(t,e,n)}catch(r){return this.emit("error",r)}void 0===this.ws.binaryType&&(this.supportsBinary=!1),this.ws.supports&&this.ws.supports.binary?(this.supportsBinary=!0,this.ws.binaryType="nodebuffer"):this.ws.binaryType="arraybuffer",this.addEventListeners()}},r.prototype.addEventListeners=function(){var t=this;this.ws.onopen=function(){t.onOpen()},this.ws.onclose=function(){t.onClose()},this.ws.onmessage=function(e){t.onData(e.data)},this.ws.onerror=function(e){t.onError("websocket error",e)}},r.prototype.write=function(t){function e(){n.emit("flush"),setTimeout(function(){n.writable=!0,n.emit("drain")},0)}var n=this;this.writable=!1;for(var r=t.length,o=0,i=r;o<i;o++)!function(t){a.encodePacket(t,n.supportsBinary,function(o){if(!n.usingBrowserWebSocket){var i={};if(t.options&&(i.compress=t.options.compress),n.perMessageDeflate){var s="string"==typeof o?Buffer.byteLength(o):o.length;s<n.perMessageDeflate.threshold&&(i.compress=!1)}}try{n.usingBrowserWebSocket?n.ws.send(o):n.ws.send(o,i)}catch(a){h("websocket closed before onclose event")}--r||e()})}(t[o])},r.prototype.onClose=function(){s.prototype.onClose.call(this)},r.prototype.doClose=function(){"undefined"!=typeof this.ws&&this.ws.close()},r.prototype.uri=function(){var t=this.query||{},e=this.secure?"wss":"ws",n="";this.port&&("wss"===e&&443!==Number(this.port)||"ws"===e&&80!==Number(this.port))&&(n=":"+this.port),this.timestampRequests&&(t[this.timestampParam]=u()),this.supportsBinary||(t.b64=1),t=c.encode(t),t.length&&(t="?"+t);var r=this.hostname.indexOf(":")!==-1;return e+"://"+(r?"["+this.hostname+"]":this.hostname)+n+this.path+t},r.prototype.check=function(){return!(!l||"__initialize"in l&&this.name===r.prototype.name)}},function(t,e){},function(t,e){var n=[].indexOf;t.exports=function(t,e){if(n)return t.indexOf(e);for(var r=0;r<t.length;++r)if(t[r]===e)return r;return-1}},function(t,e,n){"use strict";function r(t,e,n){this.io=t,this.nsp=e,this.json=this,this.ids=0,this.acks={},this.receiveBuffer=[],this.sendBuffer=[],this.connected=!1,this.disconnected=!0,this.flags={},n&&n.query&&(this.query=n.query),this.io.autoConnect&&this.open()}var o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},i=n(7),s=n(8),a=n(37),c=n(38),p=n(39),u=n(3)("socket.io-client:socket"),h=n(29),f=n(23);t.exports=e=r;var l={connect:1,connect_error:1,connect_timeout:1,connecting:1,disconnect:1,error:1,reconnect:1,reconnect_attempt:1,reconnect_failed:1,reconnect_error:1,reconnecting:1,ping:1,pong:1},d=s.prototype.emit;s(r.prototype),r.prototype.subEvents=function(){if(!this.subs){var t=this.io;this.subs=[c(t,"open",p(this,"onopen")),c(t,"packet",p(this,"onpacket")),c(t,"close",p(this,"onclose"))]}},r.prototype.open=r.prototype.connect=function(){return this.connected?this:(this.subEvents(),this.io.open(),"open"===this.io.readyState&&this.onopen(),this.emit("connecting"),this)},r.prototype.send=function(){var t=a(arguments);return t.unshift("message"),this.emit.apply(this,t),this},r.prototype.emit=function(t){if(l.hasOwnProperty(t))return d.apply(this,arguments),this;var e=a(arguments),n={type:(void 0!==this.flags.binary?this.flags.binary:f(e))?i.BINARY_EVENT:i.EVENT,data:e};return n.options={},n.options.compress=!this.flags||!1!==this.flags.compress,"function"==typeof e[e.length-1]&&(u("emitting packet with ack id %d",this.ids),this.acks[this.ids]=e.pop(),n.id=this.ids++),this.connected?this.packet(n):this.sendBuffer.push(n),this.flags={},this},r.prototype.packet=function(t){t.nsp=this.nsp,this.io.packet(t)},r.prototype.onopen=function(){if(u("transport is open - connecting"),"/"!==this.nsp)if(this.query){var t="object"===o(this.query)?h.encode(this.query):this.query;u("sending connect packet with query %s",t),this.packet({type:i.CONNECT,query:t})}else this.packet({type:i.CONNECT})},r.prototype.onclose=function(t){u("close (%s)",t),this.connected=!1,this.disconnected=!0,delete this.id,this.emit("disconnect",t)},r.prototype.onpacket=function(t){var e=t.nsp===this.nsp,n=t.type===i.ERROR&&"/"===t.nsp;if(e||n)switch(t.type){case i.CONNECT:this.onconnect();break;case i.EVENT:this.onevent(t);break;case i.BINARY_EVENT:this.onevent(t);break;case i.ACK:this.onack(t);break;case i.BINARY_ACK:this.onack(t);break;case i.DISCONNECT:this.ondisconnect();break;case i.ERROR:this.emit("error",t.data)}},r.prototype.onevent=function(t){var e=t.data||[];u("emitting event %j",e),null!=t.id&&(u("attaching ack callback to event"),e.push(this.ack(t.id))),this.connected?d.apply(this,e):this.receiveBuffer.push(e)},r.prototype.ack=function(t){var e=this,n=!1;return function(){if(!n){n=!0;var r=a(arguments);u("sending ack %j",r),e.packet({type:f(r)?i.BINARY_ACK:i.ACK,id:t,data:r})}}},r.prototype.onack=function(t){var e=this.acks[t.id];"function"==typeof e?(u("calling ack %s with %j",t.id,t.data),e.apply(this,t.data),delete this.acks[t.id]):u("bad ack %s",t.id)},r.prototype.onconnect=function(){this.connected=!0,this.disconnected=!1,this.emit("connect"),this.emitBuffered()},r.prototype.emitBuffered=function(){var t;for(t=0;t<this.receiveBuffer.length;t++)d.apply(this,this.receiveBuffer[t]);for(this.receiveBuffer=[],t=0;t<this.sendBuffer.length;t++)this.packet(this.sendBuffer[t]);this.sendBuffer=[]},r.prototype.ondisconnect=function(){u("server disconnect (%s)",this.nsp),this.destroy(),this.onclose("io server disconnect")},r.prototype.destroy=function(){if(this.subs){for(var t=0;t<this.subs.length;t++)this.subs[t].destroy();this.subs=null}this.io.destroy(this)},r.prototype.close=r.prototype.disconnect=function(){return this.connected&&(u("performing disconnect (%s)",this.nsp),this.packet({type:i.DISCONNECT})),this.destroy(),this.connected&&this.onclose("io client disconnect"),this},r.prototype.compress=function(t){return this.flags.compress=t,this},r.prototype.binary=function(t){return this.flags.binary=t,this}},function(t,e){function n(t,e){var n=[];e=e||0;for(var r=e||0;r<t.length;r++)n[r-e]=t[r];return n}t.exports=n},function(t,e){"use strict";function n(t,e,n){return t.on(e,n),{destroy:function(){t.removeListener(e,n)}}}t.exports=n},function(t,e){var n=[].slice;t.exports=function(t,e){if("string"==typeof e&&(e=t[e]),"function"!=typeof e)throw new Error("bind() requires a function");var r=n.call(arguments,2);return function(){return e.apply(t,r.concat(n.call(arguments)))}}},function(t,e){function n(t){t=t||{},this.ms=t.min||100,this.max=t.max||1e4,this.factor=t.factor||2,this.jitter=t.jitter>0&&t.jitter<=1?t.jitter:0,this.attempts=0}t.exports=n,n.prototype.duration=function(){var t=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),n=Math.floor(e*this.jitter*t);t=0==(1&Math.floor(10*e))?t-n:t+n}return 0|Math.min(t,this.max)},n.prototype.reset=function(){this.attempts=0},n.prototype.setMin=function(t){this.ms=t},n.prototype.setMax=function(t){this.max=t},n.prototype.setJitter=function(t){this.jitter=t}}])});
+//# sourceMappingURL=socket.io.js.map
+
+
+// document.write('<script src = "node_modules/socket.io/index.js"></script>');
+
+
+var socket = io('http://localhost:3000');
+listeners = {}
+var front = {
+    send:send,
+    on:on,
+    sendSync:sendSync
+}
+
+function addListener(event, fn) {
+    listeners[event] = listeners[event] || [];
+    listeners[event].push(fn);
+}
+
+function on(event, fn){
+    addListener(event, fn);
+}
+
+function exeFunction(event, ...args){
+    let fns = listeners[event];
+    if (!fns) return false;
+    fns.forEach(function (f) {
+      f(...args);
+    });
+    return true;
+}
+
+
+function send(event, ...args){
+    // console.log('called send');
+    socket.emit('response-from-front', event, ...args)
+}
+
+socket.on('response-from-back', function(event, ...args){
+    // console.log('reposen sync')
+    exeFunction(event, ...args);
+})
+
+socket.on('sync-response', function(eventName, res){
+    // console.log('sync-reponse')
+    // console.log(eventName);
+    exeFunction(eventName + "-result", res);
+})
+
+function sendSync(event, ...args){
+    socket.emit('sync-response-from-front', event, ...args);
+}
diff --git a/helloworld/node_modules/androidjs/package.json b/helloworld/node_modules/androidjs/package.json
new file mode 100755
index 0000000..6e5255b
--- /dev/null
+++ b/helloworld/node_modules/androidjs/package.json
@@ -0,0 +1,40 @@
+{
+  "_from": "androidjs@latest",
+  "_id": "androidjs@1.0.1",
+  "_inBundle": false,
+  "_integrity": "sha512-ZpLT9hWZEQZbFKKRWbj3MFkbNVuXEKvPXMkY1OqLO9vDoFvKXzs6vkK5i4aW3ulEWTPHZ/DpoAP3OCnzODd9kQ==",
+  "_location": "/androidjs",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "tag",
+    "registry": true,
+    "raw": "androidjs@latest",
+    "name": "androidjs",
+    "escapedName": "androidjs",
+    "rawSpec": "latest",
+    "saveSpec": null,
+    "fetchSpec": "latest"
+  },
+  "_requiredBy": [
+    "#USER",
+    "/"
+  ],
+  "_resolved": "https://registry.npmjs.org/androidjs/-/androidjs-1.0.1.tgz",
+  "_shasum": "51aa958c005361f70036788ce68a9137383dbfe1",
+  "_spec": "androidjs@latest",
+  "_where": "/Users/chhekur/Desktop/nodejs-mobile-samples-master/android/native-gradle/app/src/main/assets/myapp",
+  "author": "",
+  "bundleDependencies": false,
+  "dependencies": {
+    "socket.io": "^2.2.0"
+  },
+  "deprecated": false,
+  "description": "",
+  "license": "MIT",
+  "main": "index.js",
+  "name": "androidjs",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "version": "1.0.1"
+}
diff --git a/helloworld/node_modules/ansi-regex/index.js b/helloworld/node_modules/ansi-regex/index.js
new file mode 100755
index 0000000..b9574ed
--- /dev/null
+++ b/helloworld/node_modules/ansi-regex/index.js
@@ -0,0 +1,4 @@
+'use strict';
+module.exports = function () {
+	return /[\u001b\u009b][[()#;?]*(?:[0-9]{1,4}(?:;[0-9]{0,4})*)?[0-9A-PRZcf-nqry=><]/g;
+};
diff --git a/helloworld/node_modules/ansi-regex/license b/helloworld/node_modules/ansi-regex/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/ansi-regex/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/ansi-regex/readme.md b/helloworld/node_modules/ansi-regex/readme.md
new file mode 100755
index 0000000..6a928ed
--- /dev/null
+++ b/helloworld/node_modules/ansi-regex/readme.md
@@ -0,0 +1,39 @@
+# ansi-regex [![Build Status](https://travis-ci.org/chalk/ansi-regex.svg?branch=master)](https://travis-ci.org/chalk/ansi-regex)
+
+> Regular expression for matching [ANSI escape codes](http://en.wikipedia.org/wiki/ANSI_escape_code)
+
+
+## Install
+
+```
+$ npm install --save ansi-regex
+```
+
+
+## Usage
+
+```js
+const ansiRegex = require('ansi-regex');
+
+ansiRegex().test('\u001b[4mcake\u001b[0m');
+//=> true
+
+ansiRegex().test('cake');
+//=> false
+
+'\u001b[4mcake\u001b[0m'.match(ansiRegex());
+//=> ['\u001b[4m', '\u001b[0m']
+```
+
+## FAQ
+
+### Why do you test for codes not in the ECMA 48 standard?
+
+Some of the codes we run as a test are codes that we acquired finding various lists of non-standard or manufacturer specific codes. If I recall correctly, we test for both standard and non-standard codes, as most of them follow the same or similar format and can be safely matched in strings without the risk of removing actual string content. There are a few non-standard control codes that do not follow the traditional format (i.e. they end in numbers) thus forcing us to exclude them from the test because we cannot reliably match them.
+
+On the historical side, those ECMA standards were established in the early 90's whereas the VT100, for example, was designed in the mid/late 70's. At that point in time, control codes were still pretty ungoverned and engineers used them for a multitude of things, namely to activate hardware ports that may have been proprietary. Somewhere else you see a similar 'anarchy' of codes is in the x86 architecture for processors; there are a ton of "interrupts" that can mean different things on certain brands of processors, most of which have been phased out.
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/arraybuffer.slice/LICENCE b/helloworld/node_modules/arraybuffer.slice/LICENCE
new file mode 100755
index 0000000..35fa375
--- /dev/null
+++ b/helloworld/node_modules/arraybuffer.slice/LICENCE
@@ -0,0 +1,18 @@
+Copyright (C) 2013 Rase-
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/arraybuffer.slice/Makefile b/helloworld/node_modules/arraybuffer.slice/Makefile
new file mode 100755
index 0000000..849887f
--- /dev/null
+++ b/helloworld/node_modules/arraybuffer.slice/Makefile
@@ -0,0 +1,8 @@
+
+REPORTER = dot
+
+test:
+	@./node_modules/.bin/mocha \
+		--reporter $(REPORTER)
+
+.PHONY: test
diff --git a/helloworld/node_modules/arraybuffer.slice/README.md b/helloworld/node_modules/arraybuffer.slice/README.md
new file mode 100755
index 0000000..15e465e
--- /dev/null
+++ b/helloworld/node_modules/arraybuffer.slice/README.md
@@ -0,0 +1,17 @@
+# How to
+```javascript
+var sliceBuffer = require('arraybuffer.slice');
+var ab = (new Int8Array(5)).buffer;
+var sliced = sliceBuffer(ab, 1, 3);
+sliced = sliceBuffer(ab, 1);
+```
+
+# Licence (MIT)
+Copyright (C) 2013 Rase-
+
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/arraybuffer.slice/index.js b/helloworld/node_modules/arraybuffer.slice/index.js
new file mode 100755
index 0000000..11ac556
--- /dev/null
+++ b/helloworld/node_modules/arraybuffer.slice/index.js
@@ -0,0 +1,29 @@
+/**
+ * An abstraction for slicing an arraybuffer even when
+ * ArrayBuffer.prototype.slice is not supported
+ *
+ * @api public
+ */
+
+module.exports = function(arraybuffer, start, end) {
+  var bytes = arraybuffer.byteLength;
+  start = start || 0;
+  end = end || bytes;
+
+  if (arraybuffer.slice) { return arraybuffer.slice(start, end); }
+
+  if (start < 0) { start += bytes; }
+  if (end < 0) { end += bytes; }
+  if (end > bytes) { end = bytes; }
+
+  if (start >= bytes || start >= end || bytes === 0) {
+    return new ArrayBuffer(0);
+  }
+
+  var abv = new Uint8Array(arraybuffer);
+  var result = new Uint8Array(end - start);
+  for (var i = start, ii = 0; i < end; i++, ii++) {
+    result[ii] = abv[i];
+  }
+  return result.buffer;
+};
diff --git a/helloworld/node_modules/arraybuffer.slice/package.json b/helloworld/node_modules/arraybuffer.slice/package.json
new file mode 100755
index 0000000..0bc69dd
--- /dev/null
+++ b/helloworld/node_modules/arraybuffer.slice/package.json
@@ -0,0 +1,44 @@
+{
+  "_from": "arraybuffer.slice@~0.0.7",
+  "_id": "arraybuffer.slice@0.0.7",
+  "_inBundle": false,
+  "_integrity": "sha512-wGUIVQXuehL5TCqQun8OW81jGzAWycqzFF8lFp+GOM5BXLYj3bKNsYC4daB7n6XjCqxQA/qgTJ+8ANR3acjrog==",
+  "_location": "/arraybuffer.slice",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "arraybuffer.slice@~0.0.7",
+    "name": "arraybuffer.slice",
+    "escapedName": "arraybuffer.slice",
+    "rawSpec": "~0.0.7",
+    "saveSpec": null,
+    "fetchSpec": "~0.0.7"
+  },
+  "_requiredBy": [
+    "/engine.io-parser"
+  ],
+  "_resolved": "https://registry.npmjs.org/arraybuffer.slice/-/arraybuffer.slice-0.0.7.tgz",
+  "_shasum": "3bbc4275dd584cc1b10809b89d4e8b63a69e7675",
+  "_spec": "arraybuffer.slice@~0.0.7",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/engine.io-parser",
+  "bugs": {
+    "url": "https://github.com/rase-/arraybuffer.slice/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {},
+  "deprecated": false,
+  "description": "Exports a function for slicing ArrayBuffers (no polyfilling)",
+  "devDependencies": {
+    "expect.js": "0.2.0",
+    "mocha": "1.17.1"
+  },
+  "homepage": "https://github.com/rase-/arraybuffer.slice",
+  "license": "MIT",
+  "name": "arraybuffer.slice",
+  "repository": {
+    "type": "git",
+    "url": "git+ssh://git@github.com/rase-/arraybuffer.slice.git"
+  },
+  "version": "0.0.7"
+}
diff --git a/helloworld/node_modules/arraybuffer.slice/test/slice-buffer.js b/helloworld/node_modules/arraybuffer.slice/test/slice-buffer.js
new file mode 100755
index 0000000..4778da6
--- /dev/null
+++ b/helloworld/node_modules/arraybuffer.slice/test/slice-buffer.js
@@ -0,0 +1,227 @@
+/*
+ * Test dependencies
+ */
+
+var sliceBuffer = require('../index.js');
+var expect = require('expect.js');
+
+/**
+ * Tests
+ */
+
+describe('sliceBuffer', function() {
+  describe('using standard slice', function() {
+    it('should slice correctly with only start provided', function() {
+      var abv = new Uint8Array(10);
+      for (var i = 0; i < abv.length; i++) {
+        abv[i] = i;
+      }
+
+      var sliced = sliceBuffer(abv.buffer, 3);
+      var sabv = new Uint8Array(sliced);
+      for (var i = 3, ii = 0; i < abv.length; i++, ii++) {
+        expect(abv[i]).to.equal(sabv[ii]);
+      }
+    });
+
+    it('should slice correctly with start and end provided', function() {
+      var abv = new Uint8Array(10);
+      for (var i = 0; i < abv.length; i++) {
+        abv[i] = i;
+      }
+
+      var sliced = sliceBuffer(abv.buffer, 3, 8);
+      var sabv = new Uint8Array(sliced);
+      for (var i = 3, ii = 0; i < 8; i++, ii++) {
+        expect(abv[i]).to.equal(sabv[ii]);
+      }
+    });
+
+    it('should slice correctly with negative start', function() {
+      var abv = new Uint8Array(10);
+      for (var i = 0; i < abv.length; i++) {
+        abv[i] = i;
+      }
+
+      var sliced = sliceBuffer(abv.buffer, -3);
+      var sabv = new Uint8Array(sliced);
+      for (var i = abv.length - 3, ii = 0; i < abv.length; i++, ii++) {
+        expect(abv[i]).to.equal(sabv[ii]);
+      }
+    });
+
+    it('should slice correctly with negative end', function() {
+      var abv = new Uint8Array(10);
+      for (var i = 0; i < abv.length; i++) {
+        abv[i] = i;
+      }
+
+      var sliced = sliceBuffer(abv.buffer, 0, -3);
+      var sabv = new Uint8Array(sliced);
+      for (var i = 0, ii = 0; i < abv.length - 3; i++, ii++) {
+        expect(abv[i]).to.equal(sabv[ii]);
+      }
+    });
+
+    it('should slice correctly with negative start and end', function() {
+      var abv = new Uint8Array(10);
+      for (var i = 0; i < abv.length; i++) {
+        abv[i] = i;
+      }
+
+      var sliced = sliceBuffer(abv.buffer, -6, -3);
+      var sabv = new Uint8Array(sliced);
+      for (var i = abv.length - 6, ii = 0; i < abv.length - 3; i++, ii++) {
+        expect(abv[i]).to.equal(sabv[ii]);
+      }
+    });
+
+    it('should slice correctly with equal start and end', function() {
+      var abv = new Uint8Array(10);
+      for (var i = 0; i < abv.length; i++) {
+        abv[i] = i;
+      }
+
+      var sliced = sliceBuffer(abv.buffer, 1, 1);
+      expect(sliced.byteLength).to.equal(0);
+    });
+    
+    it('should slice correctly when end larger than buffer', function() {
+      var abv = new Uint8Array(10);
+      for (var i = 0; i < abv.length; i++) {
+        abv[i] = i;
+      }
+
+      var sliced = sliceBuffer(abv.buffer, 0, 100);
+      expect(new Uint8Array(sliced)).to.eql(abv);
+    });
+
+    it('shoud slice correctly when start larger than end', function() {
+      var abv = new Uint8Array(10);
+      for (var i = 0; i < abv.length; i++) {
+        abv[i] = i;
+      }
+
+      var sliced = sliceBuffer(abv.buffer, 6, 5);
+      expect(sliced.byteLength).to.equal(0);
+    });
+  });
+
+  describe('using fallback', function() {
+    it('should slice correctly with only start provided', function() {
+      var abv = new Uint8Array(10);
+      for (var i = 0; i < abv.length; i++) {
+        abv[i] = i;
+      }
+      var ab = abv.buffer;
+      ab.slice = undefined;
+
+      var sliced = sliceBuffer(ab, 3);
+      var sabv = new Uint8Array(sliced);
+      for (var i = 3, ii = 0; i < abv.length; i++, ii++) {
+        expect(abv[i]).to.equal(sabv[ii]);
+      }
+    });
+
+    it('should slice correctly with start and end provided', function() {
+      var abv = new Uint8Array(10);
+      for (var i = 0; i < abv.length; i++) {
+        abv[i] = i;
+      }
+      var ab = abv.buffer;
+      ab.slice = undefined;
+
+
+      var sliced = sliceBuffer(ab, 3, 8);
+      var sabv = new Uint8Array(sliced);
+      for (var i = 3, ii = 0; i < 8; i++, ii++) {
+        expect(abv[i]).to.equal(sabv[ii]);
+      }
+    });
+
+    it('should slice correctly with negative start', function() {
+      var abv = new Uint8Array(10);
+      for (var i = 0; i < abv.length; i++) {
+        abv[i] = i;
+      }
+      var ab = abv.buffer;
+      ab.slice = undefined;
+
+
+      var sliced = sliceBuffer(ab, -3);
+      var sabv = new Uint8Array(sliced);
+      for (var i = abv.length - 3, ii = 0; i < abv.length; i++, ii++) {
+        expect(abv[i]).to.equal(sabv[ii]);
+      }
+    });
+
+    it('should slice correctly with negative end', function() {
+      var abv = new Uint8Array(10);
+      for (var i = 0; i < abv.length; i++) {
+        abv[i] = i;
+      }
+      var ab = abv.buffer;
+      ab.slice = undefined;
+
+      var sliced = sliceBuffer(ab, 0, -3);
+      var sabv = new Uint8Array(sliced);
+      for (var i = 0, ii = 0; i < abv.length - 3; i++, ii++) {
+        expect(abv[i]).to.equal(sabv[ii]);
+      }
+    });
+
+    it('should slice correctly with negative start and end', function() {
+      var abv = new Uint8Array(10);
+      for (var i = 0; i < abv.length; i++) {
+        abv[i] = i;
+      }
+      var ab = abv.buffer;
+      ab.slice = undefined;
+
+      var sliced = sliceBuffer(ab, -6, -3);
+      var sabv = new Uint8Array(sliced);
+      for (var i = abv.length - 6, ii = 0; i < abv.length - 3; i++, ii++) {
+        expect(abv[i]).to.equal(sabv[ii]);
+      }
+    });
+
+    it('should slice correctly with equal start and end', function() {
+      var abv = new Uint8Array(10);
+      for (var i = 0; i < abv.length; i++) {
+        abv[i] = i;
+      }
+      var ab = abv.buffer;
+      ab.slice = undefined;
+
+      var sliced = sliceBuffer(ab, 1, 1);
+      expect(sliced.byteLength).to.equal(0);
+    });
+
+    it('should slice correctly when end larger than buffer', function() {
+      var abv = new Uint8Array(10);
+      for (var i = 0; i < abv.length; i++) {
+        abv[i] = i;
+      }
+      var ab = abv.buffer;
+      ab.slice = undefined;
+
+      var sliced = sliceBuffer(ab, 0, 100);
+      var sabv = new Uint8Array(sliced);
+      for (var i = 0; i < abv.length; i++) {
+        expect(abv[i]).to.equal(sabv[i]);
+      }
+    });
+
+    it('shoud slice correctly when start larger than end', function() {
+      var abv = new Uint8Array(10);
+      for (var i = 0; i < abv.length; i++) {
+        abv[i] = i;
+      }
+      var ab = abv.buffer;
+      ab.slice = undefined;
+
+      var sliced = sliceBuffer(ab, 6, 5);
+      expect(sliced.byteLength).to.equal(0);
+    });
+  });
+});
diff --git a/helloworld/node_modules/async-limiter/LICENSE b/helloworld/node_modules/async-limiter/LICENSE
new file mode 100755
index 0000000..9c91fb2
--- /dev/null
+++ b/helloworld/node_modules/async-limiter/LICENSE
@@ -0,0 +1,8 @@
+The MIT License (MIT)
+Copyright (c) 2017 Samuel Reed <samuel.trace.reed@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/async-limiter/coverage/coverage.json b/helloworld/node_modules/async-limiter/coverage/coverage.json
new file mode 100755
index 0000000..5b4a358
--- /dev/null
+++ b/helloworld/node_modules/async-limiter/coverage/coverage.json
@@ -0,0 +1 @@
+{"/Users/samuelreed/git/forks/async-throttle/index.js":{"path":"/Users/samuelreed/git/forks/async-throttle/index.js","s":{"1":1,"2":7,"3":1,"4":6,"5":6,"6":6,"7":6,"8":6,"9":6,"10":1,"11":1,"12":3,"13":13,"14":13,"15":13,"16":1,"17":19,"18":1,"19":45,"20":6,"21":39,"22":13,"23":13,"24":13,"25":13,"26":39,"27":18,"28":6,"29":6,"30":1,"31":6,"32":6,"33":6,"34":1,"35":13,"36":13,"37":1},"b":{"1":[1,6],"2":[6,5],"3":[6,5],"4":[6,39],"5":[13,26],"6":[18,21],"7":[6,0]},"f":{"1":7,"2":3,"3":13,"4":19,"5":45,"6":6,"7":13},"fnMap":{"1":{"name":"Queue","line":3,"loc":{"start":{"line":3,"column":0},"end":{"line":3,"column":24}}},"2":{"name":"(anonymous_2)","line":22,"loc":{"start":{"line":22,"column":24},"end":{"line":22,"column":41}}},"3":{"name":"(anonymous_3)","line":23,"loc":{"start":{"line":23,"column":28},"end":{"line":23,"column":39}}},"4":{"name":"(anonymous_4)","line":31,"loc":{"start":{"line":31,"column":7},"end":{"line":31,"column":18}}},"5":{"name":"(anonymous_5)","line":36,"loc":{"start":{"line":36,"column":23},"end":{"line":36,"column":34}}},"6":{"name":"(anonymous_6)","line":55,"loc":{"start":{"line":55,"column":25},"end":{"line":55,"column":38}}},"7":{"name":"done","line":62,"loc":{"start":{"line":62,"column":0},"end":{"line":62,"column":16}}}},"statementMap":{"1":{"start":{"line":3,"column":0},"end":{"line":14,"column":1}},"2":{"start":{"line":4,"column":2},"end":{"line":6,"column":3}},"3":{"start":{"line":5,"column":4},"end":{"line":5,"column":30}},"4":{"start":{"line":8,"column":2},"end":{"line":8,"column":26}},"5":{"start":{"line":9,"column":2},"end":{"line":9,"column":53}},"6":{"start":{"line":10,"column":2},"end":{"line":10,"column":19}},"7":{"start":{"line":11,"column":2},"end":{"line":11,"column":17}},"8":{"start":{"line":12,"column":2},"end":{"line":12,"column":16}},"9":{"start":{"line":13,"column":2},"end":{"line":13,"column":31}},"10":{"start":{"line":16,"column":0},"end":{"line":20,"column":2}},"11":{"start":{"line":22,"column":0},"end":{"line":28,"column":3}},"12":{"start":{"line":23,"column":2},"end":{"line":27,"column":4}},"13":{"start":{"line":24,"column":4},"end":{"line":24,"column":75}},"14":{"start":{"line":25,"column":4},"end":{"line":25,"column":16}},"15":{"start":{"line":26,"column":4},"end":{"line":26,"column":24}},"16":{"start":{"line":30,"column":0},"end":{"line":34,"column":3}},"17":{"start":{"line":32,"column":4},"end":{"line":32,"column":43}},"18":{"start":{"line":36,"column":0},"end":{"line":53,"column":2}},"19":{"start":{"line":37,"column":2},"end":{"line":39,"column":3}},"20":{"start":{"line":38,"column":4},"end":{"line":38,"column":11}},"21":{"start":{"line":40,"column":2},"end":{"line":45,"column":3}},"22":{"start":{"line":41,"column":4},"end":{"line":41,"column":32}},"23":{"start":{"line":42,"column":4},"end":{"line":42,"column":19}},"24":{"start":{"line":43,"column":4},"end":{"line":43,"column":20}},"25":{"start":{"line":44,"column":4},"end":{"line":44,"column":16}},"26":{"start":{"line":47,"column":2},"end":{"line":52,"column":3}},"27":{"start":{"line":48,"column":4},"end":{"line":51,"column":5}},"28":{"start":{"line":49,"column":6},"end":{"line":49,"column":30}},"29":{"start":{"line":50,"column":6},"end":{"line":50,"column":27}},"30":{"start":{"line":55,"column":0},"end":{"line":60,"column":2}},"31":{"start":{"line":56,"column":2},"end":{"line":59,"column":3}},"32":{"start":{"line":57,"column":4},"end":{"line":57,"column":22}},"33":{"start":{"line":58,"column":4},"end":{"line":58,"column":16}},"34":{"start":{"line":62,"column":0},"end":{"line":65,"column":1}},"35":{"start":{"line":63,"column":2},"end":{"line":63,"column":17}},"36":{"start":{"line":64,"column":2},"end":{"line":64,"column":14}},"37":{"start":{"line":67,"column":0},"end":{"line":67,"column":23}}},"branchMap":{"1":{"line":4,"type":"if","locations":[{"start":{"line":4,"column":2},"end":{"line":4,"column":2}},{"start":{"line":4,"column":2},"end":{"line":4,"column":2}}]},"2":{"line":8,"type":"binary-expr","locations":[{"start":{"line":8,"column":12},"end":{"line":8,"column":19}},{"start":{"line":8,"column":23},"end":{"line":8,"column":25}}]},"3":{"line":9,"type":"binary-expr","locations":[{"start":{"line":9,"column":21},"end":{"line":9,"column":40}},{"start":{"line":9,"column":44},"end":{"line":9,"column":52}}]},"4":{"line":37,"type":"if","locations":[{"start":{"line":37,"column":2},"end":{"line":37,"column":2}},{"start":{"line":37,"column":2},"end":{"line":37,"column":2}}]},"5":{"line":40,"type":"if","locations":[{"start":{"line":40,"column":2},"end":{"line":40,"column":2}},{"start":{"line":40,"column":2},"end":{"line":40,"column":2}}]},"6":{"line":47,"type":"if","locations":[{"start":{"line":47,"column":2},"end":{"line":47,"column":2}},{"start":{"line":47,"column":2},"end":{"line":47,"column":2}}]},"7":{"line":56,"type":"if","locations":[{"start":{"line":56,"column":2},"end":{"line":56,"column":2}},{"start":{"line":56,"column":2},"end":{"line":56,"column":2}}]}}}}
\ No newline at end of file
diff --git a/helloworld/node_modules/async-limiter/coverage/lcov-report/async-throttle/index.html b/helloworld/node_modules/async-limiter/coverage/lcov-report/async-throttle/index.html
new file mode 100755
index 0000000..198882b
--- /dev/null
+++ b/helloworld/node_modules/async-limiter/coverage/lcov-report/async-throttle/index.html
@@ -0,0 +1,73 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for async-throttle/</title>
+    <meta charset="utf-8">
+    <link rel="stylesheet" href="../prettify.css">
+    <link rel="stylesheet" href="../base.css">
+    <style type='text/css'>
+        div.coverage-summary .sorter {
+            background-image: url(../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class="header high">
+    <h1>Code coverage report for <span class="entity">async-throttle/</span></h1>
+    <h2>
+        Statements: <span class="metric">100% <small>(37 / 37)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Branches: <span class="metric">92.86% <small>(13 / 14)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Functions: <span class="metric">100% <small>(7 / 7)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Lines: <span class="metric">100% <small>(37 / 37)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Ignored: <span class="metric"><span class="ignore-none">none</span></span> &nbsp;&nbsp;&nbsp;&nbsp;
+    </h2>
+    <div class="path"><a href="../index.html">All files</a> &#187; async-throttle/</div>
+</div>
+<div class="body">
+<div class="coverage-summary">
+<table>
+<thead>
+<tr>
+   <th data-col="file" data-fmt="html" data-html="true" class="file">File</th>
+   <th data-col="pic" data-type="number" data-fmt="html" data-html="true" class="pic"></th>
+   <th data-col="statements" data-type="number" data-fmt="pct" class="pct">Statements</th>
+   <th data-col="statements_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="branches" data-type="number" data-fmt="pct" class="pct">Branches</th>
+   <th data-col="branches_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="functions" data-type="number" data-fmt="pct" class="pct">Functions</th>
+   <th data-col="functions_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="lines" data-type="number" data-fmt="pct" class="pct">Lines</th>
+   <th data-col="lines_raw" data-type="number" data-fmt="html" class="abs"></th>
+</tr>
+</thead>
+<tbody><tr>
+	<td class="file high" data-value="index.js"><a href="index.js.html">index.js</a></td>
+	<td data-value="100" class="pic high"><span class="cover-fill cover-full" style="width: 100px;"></span><span class="cover-empty" style="width:0px;"></span></td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="37" class="abs high">(37&nbsp;/&nbsp;37)</td>
+	<td data-value="92.86" class="pct high">92.86%</td>
+	<td data-value="14" class="abs high">(13&nbsp;/&nbsp;14)</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="7" class="abs high">(7&nbsp;/&nbsp;7)</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="37" class="abs high">(37&nbsp;/&nbsp;37)</td>
+	</tr>
+
+</tbody>
+</table>
+</div>
+</div>
+<div class="footer">
+    <div class="meta">Generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Mon Sep 11 2017 11:14:14 GMT-0500 (CDT)</div>
+</div>
+<script src="../prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="../sorter.js"></script>
+</body>
+</html>
diff --git a/helloworld/node_modules/async-limiter/coverage/lcov-report/async-throttle/index.js.html b/helloworld/node_modules/async-limiter/coverage/lcov-report/async-throttle/index.js.html
new file mode 100755
index 0000000..adc030f
--- /dev/null
+++ b/helloworld/node_modules/async-limiter/coverage/lcov-report/async-throttle/index.js.html
@@ -0,0 +1,246 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for async-throttle/index.js</title>
+    <meta charset="utf-8">
+    <link rel="stylesheet" href="../prettify.css">
+    <link rel="stylesheet" href="../base.css">
+    <style type='text/css'>
+        div.coverage-summary .sorter {
+            background-image: url(../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class="header high">
+    <h1>Code coverage report for <span class="entity">async-throttle/index.js</span></h1>
+    <h2>
+        Statements: <span class="metric">100% <small>(37 / 37)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Branches: <span class="metric">92.86% <small>(13 / 14)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Functions: <span class="metric">100% <small>(7 / 7)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Lines: <span class="metric">100% <small>(37 / 37)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Ignored: <span class="metric"><span class="ignore-none">none</span></span> &nbsp;&nbsp;&nbsp;&nbsp;
+    </h2>
+    <div class="path"><a href="../index.html">All files</a> &#187; <a href="index.html">async-throttle/</a> &#187; index.js</div>
+</div>
+<div class="body">
+<pre><table class="coverage">
+<tr><td class="line-count">1
+2
+3
+4
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+20
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+22
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+68</td><td class="line-coverage"><span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1</span>
+<span class="cline-any cline-yes">7</span>
+<span class="cline-any cline-yes">1</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-yes">6</span>
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+<span class="cline-any cline-neutral">&nbsp;</span>
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+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">19</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1</span>
+<span class="cline-any cline-yes">45</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">39</span>
+<span class="cline-any cline-yes">13</span>
+<span class="cline-any cline-yes">13</span>
+<span class="cline-any cline-yes">13</span>
+<span class="cline-any cline-yes">13</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">39</span>
+<span class="cline-any cline-yes">18</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-yes">6</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1</span>
+<span class="cline-any cline-yes">13</span>
+<span class="cline-any cline-yes">13</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1</span>
+<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">'use strict';
+&nbsp;
+function Queue(options) {
+  if (!(this instanceof Queue)) {
+    return new Queue(options);
+  }
+&nbsp;
+  options = options || {};
+  this.concurrency = options.concurrency || Infinity;
+  this.pending = 0;
+  this.jobs = [];
+  this.cbs = [];
+  this._done = done.bind(this);
+}
+&nbsp;
+var arrayAddMethods = [
+  'push',
+  'unshift',
+  'splice'
+];
+&nbsp;
+arrayAddMethods.forEach(function(method) {
+  Queue.prototype[method] = function() {
+    var methodResult = Array.prototype[method].apply(this.jobs, arguments);
+    this._run();
+    return methodResult;
+  };
+});
+&nbsp;
+Object.defineProperty(Queue.prototype, 'length', {
+  get: function() {
+    return this.pending + this.jobs.length;
+  }
+});
+&nbsp;
+Queue.prototype._run = function() {
+  if (this.pending === this.concurrency) {
+    return;
+  }
+  if (this.jobs.length) {
+    var job = this.jobs.shift();
+    this.pending++;
+    job(this._done);
+    this._run();
+  }
+&nbsp;
+  if (this.pending === 0) {
+    while (this.cbs.length !== 0) {
+      var cb = this.cbs.pop();
+      process.nextTick(cb);
+    }
+  }
+};
+&nbsp;
+Queue.prototype.onDone = function(cb) {
+  <span class="missing-if-branch" title="else path not taken" >E</span>if (typeof cb === 'function') {
+    this.cbs.push(cb);
+    this._run();
+  }
+};
+&nbsp;
+function done() {
+  this.pending--;
+  this._run();
+}
+&nbsp;
+module.exports = Queue;
+&nbsp;</pre></td></tr>
+</table></pre>
+
+</div>
+<div class="footer">
+    <div class="meta">Generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Mon Sep 11 2017 11:14:14 GMT-0500 (CDT)</div>
+</div>
+<script src="../prettify.js"></script>
+<script>
+window.onload = function () {
+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="../sorter.js"></script>
+</body>
+</html>
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new file mode 100755
index 0000000..782a1cf
--- /dev/null
+++ b/helloworld/node_modules/async-limiter/coverage/lcov-report/index.html
@@ -0,0 +1,73 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <title>Code coverage report for All files</title>
+    <meta charset="utf-8">
+    <link rel="stylesheet" href="prettify.css">
+    <link rel="stylesheet" href="base.css">
+    <style type='text/css'>
+        div.coverage-summary .sorter {
+            background-image: url(sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+<body>
+<div class="header high">
+    <h1>Code coverage report for <span class="entity">All files</span></h1>
+    <h2>
+        Statements: <span class="metric">100% <small>(37 / 37)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Branches: <span class="metric">92.86% <small>(13 / 14)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Functions: <span class="metric">100% <small>(7 / 7)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Lines: <span class="metric">100% <small>(37 / 37)</small></span> &nbsp;&nbsp;&nbsp;&nbsp;
+        Ignored: <span class="metric"><span class="ignore-none">none</span></span> &nbsp;&nbsp;&nbsp;&nbsp;
+    </h2>
+    <div class="path"></div>
+</div>
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+<thead>
+<tr>
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+   <th data-col="statements" data-type="number" data-fmt="pct" class="pct">Statements</th>
+   <th data-col="statements_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="branches" data-type="number" data-fmt="pct" class="pct">Branches</th>
+   <th data-col="branches_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="functions" data-type="number" data-fmt="pct" class="pct">Functions</th>
+   <th data-col="functions_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="lines" data-type="number" data-fmt="pct" class="pct">Lines</th>
+   <th data-col="lines_raw" data-type="number" data-fmt="html" class="abs"></th>
+</tr>
+</thead>
+<tbody><tr>
+	<td class="file high" data-value="async-throttle/"><a href="async-throttle/index.html">async-throttle/</a></td>
+	<td data-value="100" class="pic high"><span class="cover-fill cover-full" style="width: 100px;"></span><span class="cover-empty" style="width:0px;"></span></td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="37" class="abs high">(37&nbsp;/&nbsp;37)</td>
+	<td data-value="92.86" class="pct high">92.86%</td>
+	<td data-value="14" class="abs high">(13&nbsp;/&nbsp;14)</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="7" class="abs high">(7&nbsp;/&nbsp;7)</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="37" class="abs high">(37&nbsp;/&nbsp;37)</td>
+	</tr>
+
+</tbody>
+</table>
+</div>
+</div>
+<div class="footer">
+    <div class="meta">Generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Mon Sep 11 2017 11:14:14 GMT-0500 (CDT)</div>
+</div>
+<script src="prettify.js"></script>
+<script>
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+        if (typeof prettyPrint === 'function') {
+            prettyPrint();
+        }
+};
+</script>
+<script src="sorter.js"></script>
+</body>
+</html>
diff --git a/helloworld/node_modules/async-limiter/coverage/lcov-report/prettify.css b/helloworld/node_modules/async-limiter/coverage/lcov-report/prettify.css
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diff --git a/helloworld/node_modules/async-limiter/coverage/lcov-report/sort-arrow-sprite.png b/helloworld/node_modules/async-limiter/coverage/lcov-report/sort-arrow-sprite.png
new file mode 100755
index 0000000..03f704a
Binary files /dev/null and b/helloworld/node_modules/async-limiter/coverage/lcov-report/sort-arrow-sprite.png differ
diff --git a/helloworld/node_modules/async-limiter/coverage/lcov-report/sorter.js b/helloworld/node_modules/async-limiter/coverage/lcov-report/sorter.js
new file mode 100755
index 0000000..6afb736
--- /dev/null
+++ b/helloworld/node_modules/async-limiter/coverage/lcov-report/sorter.js
@@ -0,0 +1,156 @@
+var addSorting = (function () {
+    "use strict";
+    var cols,
+        currentSort = {
+            index: 0,
+            desc: false
+        };
+
+    // returns the summary table element
+    function getTable() { return document.querySelector('.coverage-summary table'); }
+    // returns the thead element of the summary table
+    function getTableHeader() { return getTable().querySelector('thead tr'); }
+    // returns the tbody element of the summary table
+    function getTableBody() { return getTable().querySelector('tbody'); }
+    // returns the th element for nth column
+    function getNthColumn(n) { return getTableHeader().querySelectorAll('th')[n]; }
+
+    // loads all columns
+    function loadColumns() {
+        var colNodes = getTableHeader().querySelectorAll('th'),
+            colNode,
+            cols = [],
+            col,
+            i;
+
+        for (i = 0; i < colNodes.length; i += 1) {
+            colNode = colNodes[i];
+            col = {
+                key: colNode.getAttribute('data-col'),
+                sortable: !colNode.getAttribute('data-nosort'),
+                type: colNode.getAttribute('data-type') || 'string'
+            };
+            cols.push(col);
+            if (col.sortable) {
+                col.defaultDescSort = col.type === 'number';
+                colNode.innerHTML = colNode.innerHTML + '<span class="sorter"></span>';
+            }
+        }
+        return cols;
+    }
+    // attaches a data attribute to every tr element with an object
+    // of data values keyed by column name
+    function loadRowData(tableRow) {
+        var tableCols = tableRow.querySelectorAll('td'),
+            colNode,
+            col,
+            data = {},
+            i,
+            val;
+        for (i = 0; i < tableCols.length; i += 1) {
+            colNode = tableCols[i];
+            col = cols[i];
+            val = colNode.getAttribute('data-value');
+            if (col.type === 'number') {
+                val = Number(val);
+            }
+            data[col.key] = val;
+        }
+        return data;
+    }
+    // loads all row data
+    function loadData() {
+        var rows = getTableBody().querySelectorAll('tr'),
+            i;
+
+        for (i = 0; i < rows.length; i += 1) {
+            rows[i].data = loadRowData(rows[i]);
+        }
+    }
+    // sorts the table using the data for the ith column
+    function sortByIndex(index, desc) {
+        var key = cols[index].key,
+            sorter = function (a, b) {
+                a = a.data[key];
+                b = b.data[key];
+                return a < b ? -1 : a > b ? 1 : 0;
+            },
+            finalSorter = sorter,
+            tableBody = document.querySelector('.coverage-summary tbody'),
+            rowNodes = tableBody.querySelectorAll('tr'),
+            rows = [],
+            i;
+
+        if (desc) {
+            finalSorter = function (a, b) {
+                return -1 * sorter(a, b);
+            };
+        }
+
+        for (i = 0; i < rowNodes.length; i += 1) {
+            rows.push(rowNodes[i]);
+            tableBody.removeChild(rowNodes[i]);
+        }
+
+        rows.sort(finalSorter);
+
+        for (i = 0; i < rows.length; i += 1) {
+            tableBody.appendChild(rows[i]);
+        }
+    }
+    // removes sort indicators for current column being sorted
+    function removeSortIndicators() {
+        var col = getNthColumn(currentSort.index),
+            cls = col.className;
+
+        cls = cls.replace(/ sorted$/, '').replace(/ sorted-desc$/, '');
+        col.className = cls;
+    }
+    // adds sort indicators for current column being sorted
+    function addSortIndicators() {
+        getNthColumn(currentSort.index).className += currentSort.desc ? ' sorted-desc' : ' sorted';
+    }
+    // adds event listeners for all sorter widgets
+    function enableUI() {
+        var i,
+            el,
+            ithSorter = function ithSorter(i) {
+                var col = cols[i];
+
+                return function () {
+                    var desc = col.defaultDescSort;
+
+                    if (currentSort.index === i) {
+                        desc = !currentSort.desc;
+                    }
+                    sortByIndex(i, desc);
+                    removeSortIndicators();
+                    currentSort.index = i;
+                    currentSort.desc = desc;
+                    addSortIndicators();
+                };
+            };
+        for (i =0 ; i < cols.length; i += 1) {
+            if (cols[i].sortable) {
+                el = getNthColumn(i).querySelector('.sorter');
+                if (el.addEventListener) {
+                    el.addEventListener('click', ithSorter(i));
+                } else {
+                    el.attachEvent('onclick', ithSorter(i));
+                }
+            }
+        }
+    }
+    // adds sorting functionality to the UI
+    return function () {
+        if (!getTable()) {
+            return;
+        }
+        cols = loadColumns();
+        loadData(cols);
+        addSortIndicators();
+        enableUI();
+    };
+})();
+
+window.addEventListener('load', addSorting);
diff --git a/helloworld/node_modules/async-limiter/coverage/lcov.info b/helloworld/node_modules/async-limiter/coverage/lcov.info
new file mode 100755
index 0000000..fbf36aa
--- /dev/null
+++ b/helloworld/node_modules/async-limiter/coverage/lcov.info
@@ -0,0 +1,74 @@
+TN:
+SF:/Users/samuelreed/git/forks/async-throttle/index.js
+FN:3,Queue
+FN:22,(anonymous_2)
+FN:23,(anonymous_3)
+FN:31,(anonymous_4)
+FN:36,(anonymous_5)
+FN:55,(anonymous_6)
+FN:62,done
+FNF:7
+FNH:7
+FNDA:7,Queue
+FNDA:3,(anonymous_2)
+FNDA:13,(anonymous_3)
+FNDA:19,(anonymous_4)
+FNDA:45,(anonymous_5)
+FNDA:6,(anonymous_6)
+FNDA:13,done
+DA:3,1
+DA:4,7
+DA:5,1
+DA:8,6
+DA:9,6
+DA:10,6
+DA:11,6
+DA:12,6
+DA:13,6
+DA:16,1
+DA:22,1
+DA:23,3
+DA:24,13
+DA:25,13
+DA:26,13
+DA:30,1
+DA:32,19
+DA:36,1
+DA:37,45
+DA:38,6
+DA:40,39
+DA:41,13
+DA:42,13
+DA:43,13
+DA:44,13
+DA:47,39
+DA:48,18
+DA:49,6
+DA:50,6
+DA:55,1
+DA:56,6
+DA:57,6
+DA:58,6
+DA:62,1
+DA:63,13
+DA:64,13
+DA:67,1
+LF:37
+LH:37
+BRDA:4,1,0,1
+BRDA:4,1,1,6
+BRDA:8,2,0,6
+BRDA:8,2,1,5
+BRDA:9,3,0,6
+BRDA:9,3,1,5
+BRDA:37,4,0,6
+BRDA:37,4,1,39
+BRDA:40,5,0,13
+BRDA:40,5,1,26
+BRDA:47,6,0,18
+BRDA:47,6,1,21
+BRDA:56,7,0,6
+BRDA:56,7,1,0
+BRF:14
+BRH:13
+end_of_record
diff --git a/helloworld/node_modules/async-limiter/index.js b/helloworld/node_modules/async-limiter/index.js
new file mode 100755
index 0000000..c9bd2f9
--- /dev/null
+++ b/helloworld/node_modules/async-limiter/index.js
@@ -0,0 +1,67 @@
+'use strict';
+
+function Queue(options) {
+  if (!(this instanceof Queue)) {
+    return new Queue(options);
+  }
+
+  options = options || {};
+  this.concurrency = options.concurrency || Infinity;
+  this.pending = 0;
+  this.jobs = [];
+  this.cbs = [];
+  this._done = done.bind(this);
+}
+
+var arrayAddMethods = [
+  'push',
+  'unshift',
+  'splice'
+];
+
+arrayAddMethods.forEach(function(method) {
+  Queue.prototype[method] = function() {
+    var methodResult = Array.prototype[method].apply(this.jobs, arguments);
+    this._run();
+    return methodResult;
+  };
+});
+
+Object.defineProperty(Queue.prototype, 'length', {
+  get: function() {
+    return this.pending + this.jobs.length;
+  }
+});
+
+Queue.prototype._run = function() {
+  if (this.pending === this.concurrency) {
+    return;
+  }
+  if (this.jobs.length) {
+    var job = this.jobs.shift();
+    this.pending++;
+    job(this._done);
+    this._run();
+  }
+
+  if (this.pending === 0) {
+    while (this.cbs.length !== 0) {
+      var cb = this.cbs.pop();
+      process.nextTick(cb);
+    }
+  }
+};
+
+Queue.prototype.onDone = function(cb) {
+  if (typeof cb === 'function') {
+    this.cbs.push(cb);
+    this._run();
+  }
+};
+
+function done() {
+  this.pending--;
+  this._run();
+}
+
+module.exports = Queue;
diff --git a/helloworld/node_modules/async-limiter/package.json b/helloworld/node_modules/async-limiter/package.json
new file mode 100755
index 0000000..819835c
--- /dev/null
+++ b/helloworld/node_modules/async-limiter/package.json
@@ -0,0 +1,69 @@
+{
+  "_from": "async-limiter@~1.0.0",
+  "_id": "async-limiter@1.0.0",
+  "_inBundle": false,
+  "_integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg==",
+  "_location": "/async-limiter",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "async-limiter@~1.0.0",
+    "name": "async-limiter",
+    "escapedName": "async-limiter",
+    "rawSpec": "~1.0.0",
+    "saveSpec": null,
+    "fetchSpec": "~1.0.0"
+  },
+  "_requiredBy": [
+    "/ws"
+  ],
+  "_resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
+  "_shasum": "78faed8c3d074ab81f22b4e985d79e8738f720f8",
+  "_spec": "async-limiter@~1.0.0",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/ws",
+  "author": {
+    "name": "Samuel Reed"
+  },
+  "bugs": {
+    "url": "https://github.com/strml/async-limiter/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {},
+  "deprecated": false,
+  "description": "asynchronous function queue with adjustable concurrency",
+  "devDependencies": {
+    "coveralls": "^2.11.2",
+    "eslint": "^4.6.1",
+    "eslint-plugin-mocha": "^4.11.0",
+    "intelli-espower-loader": "^1.0.1",
+    "istanbul": "^0.3.2",
+    "mocha": "^3.5.2",
+    "power-assert": "^1.4.4"
+  },
+  "homepage": "https://github.com/strml/async-limiter#readme",
+  "keywords": [
+    "throttle",
+    "async",
+    "limiter",
+    "asynchronous",
+    "job",
+    "task",
+    "concurrency",
+    "concurrent"
+  ],
+  "license": "MIT",
+  "name": "async-limiter",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/strml/async-limiter.git"
+  },
+  "scripts": {
+    "coverage": "istanbul cover ./node_modules/mocha/bin/_mocha --report lcovonly -- -R spec && cat ./coverage/lcov.info | coveralls",
+    "example": "node example",
+    "lint": "eslint .",
+    "test": "mocha --R intelli-espower-loader test/",
+    "travis": "npm run lint && npm run coverage"
+  },
+  "version": "1.0.0"
+}
diff --git a/helloworld/node_modules/async-limiter/readme.md b/helloworld/node_modules/async-limiter/readme.md
new file mode 100755
index 0000000..dcf4932
--- /dev/null
+++ b/helloworld/node_modules/async-limiter/readme.md
@@ -0,0 +1,132 @@
+# Async-Limiter
+
+A module for limiting concurrent asynchronous actions in flight. Forked from [queue](https://github.com/jessetane/queue).
+
+[![npm](http://img.shields.io/npm/v/async-limiter.svg?style=flat-square)](http://www.npmjs.org/async-limiter)
+[![tests](https://img.shields.io/travis/STRML/async-limiter.svg?style=flat-square&branch=master)](https://travis-ci.org/STRML/async-limiter)
+[![coverage](https://img.shields.io/coveralls/STRML/async-limiter.svg?style=flat-square&branch=master)](https://coveralls.io/r/STRML/async-limiter)
+
+This module exports a class `Limiter` that implements some of the `Array` API.
+Pass async functions (ones that accept a callback or return a promise) to an instance's additive array methods.
+
+## Motivation
+
+Certain functions, like `zlib`, have [undesirable behavior](https://github.com/nodejs/node/issues/8871#issuecomment-250915913) when
+run at infinite concurrency.
+
+In this case, it is actually faster, and takes far less memory, to limit concurrency.
+
+This module should do the absolute minimum work necessary to queue up functions. PRs are welcome that would
+make this module faster or lighter, but new functionality is not desired.
+
+Style should confirm to nodejs/node style.
+
+## Example
+
+``` javascript
+var Limiter = require('async-limiter')
+
+var t = new Limiter({concurrency: 2});
+var results = []
+
+// add jobs using the familiar Array API
+t.push(function (cb) {
+  results.push('two')
+  cb()
+})
+
+t.push(
+  function (cb) {
+    results.push('four')
+    cb()
+  },
+  function (cb) {
+    results.push('five')
+    cb()
+  }
+)
+
+t.unshift(function (cb) {
+  results.push('one')
+  cb()
+})
+
+t.splice(2, 0, function (cb) {
+  results.push('three')
+  cb()
+})
+
+// Jobs run automatically. If you want a callback when all are done,
+// call 'onDone()'.
+t.onDone(function () {
+  console.log('all done:', results)
+})
+```
+
+## Zlib Example
+
+```js
+const zlib = require('zlib');
+const Limiter = require('async-limiter');
+
+const message = {some: "data"};
+const payload = new Buffer(JSON.stringify(message));
+
+// Try with different concurrency values to see how this actually
+// slows significantly with higher concurrency!
+//
+// 5:        1398.607ms
+// 10:       1375.668ms
+// Infinity: 4423.300ms
+//
+const t = new Limiter({concurrency: 5});
+function deflate(payload, cb) {
+  t.push(function(done) {
+    zlib.deflate(payload, function(err, buffer) {
+      done();
+      cb(err, buffer);
+    });
+  });
+}
+
+console.time('deflate');
+for(let i = 0; i < 30000; ++i) {
+  deflate(payload, function (err, buffer) {});
+}
+q.onDone(function() {
+  console.timeEnd('deflate');
+});
+```
+
+## Install
+
+`npm install async-limiter`
+
+## Test
+
+`npm test`
+
+## API
+
+### `var t = new Limiter([opts])`
+Constructor. `opts` may contain inital values for:
+* `q.concurrency`
+
+## Instance methods
+
+### `q.onDone(fn)`
+`fn` will be called once and only once, when the queue is empty.
+
+## Instance methods mixed in from `Array`
+Mozilla has docs on how these methods work [here](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array).
+### `q.push(element1, ..., elementN)`
+### `q.unshift(element1, ..., elementN)`
+### `q.splice(index , howMany[, element1[, ...[, elementN]]])`
+
+## Properties
+### `q.concurrency`
+Max number of jobs the queue should process concurrently, defaults to `Infinity`.
+
+### `q.length`
+Jobs pending + jobs to process (readonly).
+
diff --git a/helloworld/node_modules/axios/CHANGELOG.md b/helloworld/node_modules/axios/CHANGELOG.md
new file mode 100755
index 0000000..b571b62
--- /dev/null
+++ b/helloworld/node_modules/axios/CHANGELOG.md
@@ -0,0 +1,234 @@
+# Changelog
+
+### 0.17.1 (Nov 11, 2017)
+
+- Fixing issue with web workers ([#1160](https://github.com/axios/axios/pull/1160))
+- Allowing overriding transport ([#1080](https://github.com/axios/axios/pull/1080))
+- Updating TypeScript typings ([#1165](https://github.com/axios/axios/pull/1165), [#1125](https://github.com/axios/axios/pull/1125), [#1131](https://github.com/axios/axios/pull/1131))
+
+### 0.17.0 (Oct 21, 2017)
+
+- **BREAKING** Fixing issue with `baseURL` and interceptors ([#950](https://github.com/axios/axios/pull/950))
+- **BREAKING** Improving handing of duplicate headers ([#874](https://github.com/axios/axios/pull/874))
+- Adding support for disabling proxies ([#691](https://github.com/axios/axios/pull/691))
+- Updating TypeScript typings with generic type parameters ([#1061](https://github.com/axios/axios/pull/1061))
+
+### 0.16.2 (Jun 3, 2017)
+
+- Fixing issue with including `buffer` in bundle ([#887](https://github.com/axios/axios/pull/887))
+- Including underlying request in errors ([#830](https://github.com/axios/axios/pull/830))
+- Convert `method` to lowercase ([#930](https://github.com/axios/axios/pull/930))
+
+### 0.16.1 (Apr 8, 2017)
+
+- Improving HTTP adapter to return last request in case of redirects ([#828](https://github.com/axios/axios/pull/828))
+- Updating `follow-redirects` dependency ([#829](https://github.com/axios/axios/pull/829))
+- Adding support for passing `Buffer` in node ([#773](https://github.com/axios/axios/pull/773))
+
+### 0.16.0 (Mar 31, 2017)
+
+- **BREAKING** Removing `Promise` from axios typings in favor of built-in type declarations ([#480](https://github.com/axios/axios/issues/480))
+- Adding `options` shortcut method ([#461](https://github.com/axios/axios/pull/461))
+- Fixing issue with using `responseType: 'json'` in browsers incompatible with XHR Level 2 ([#654](https://github.com/axios/axios/pull/654))
+- Improving React Native detection ([#731](https://github.com/axios/axios/pull/731))
+- Fixing `combineURLs` to support empty `relativeURL` ([#581](https://github.com/axios/axios/pull/581))
+- Removing `PROTECTION_PREFIX` support ([#561](https://github.com/axios/axios/pull/561))
+
+### 0.15.3 (Nov 27, 2016)
+
+- Fixing issue with custom instances and global defaults ([#443](https://github.com/axios/axios/issues/443))
+- Renaming `axios.d.ts` to `index.d.ts` ([#519](https://github.com/axios/axios/issues/519))
+- Adding `get`, `head`, and `delete` to `defaults.headers` ([#509](https://github.com/axios/axios/issues/509))
+- Fixing issue with `btoa` and IE ([#507](https://github.com/axios/axios/issues/507))
+- Adding support for proxy authentication ([#483](https://github.com/axios/axios/pull/483))
+- Improving HTTP adapter to use `http` protocol by default ([#493](https://github.com/axios/axios/pull/493))
+- Fixing proxy issues ([#491](https://github.com/axios/axios/pull/491))
+
+### 0.15.2 (Oct 17, 2016)
+
+- Fixing issue with calling `cancel` after response has been received ([#482](https://github.com/axios/axios/issues/482))
+
+### 0.15.1 (Oct 14, 2016)
+
+- Fixing issue with UMD ([#485](https://github.com/axios/axios/issues/485))
+
+### 0.15.0 (Oct 10, 2016)
+
+- Adding cancellation support ([#452](https://github.com/axios/axios/pull/452))
+- Moving default adapter to global defaults ([#437](https://github.com/axios/axios/pull/437))
+- Fixing issue with `file` URI scheme ([#440](https://github.com/axios/axios/pull/440))
+- Fixing issue with `params` objects that have no prototype ([#445](https://github.com/axios/axios/pull/445))
+
+### 0.14.0 (Aug 27, 2016)
+
+- **BREAKING** Updating TypeScript definitions ([#419](https://github.com/axios/axios/pull/419))
+- **BREAKING** Replacing `agent` option with `httpAgent` and `httpsAgent` ([#387](https://github.com/axios/axios/pull/387))
+- **BREAKING** Splitting `progress` event handlers into `onUploadProgress` and `onDownloadProgress` ([#423](https://github.com/axios/axios/pull/423))
+- Adding support for `http_proxy` and `https_proxy` environment variables ([#366](https://github.com/axios/axios/pull/366))
+- Fixing issue with `auth` config option and `Authorization` header ([#397](https://github.com/axios/axios/pull/397))
+- Don't set XSRF header if `xsrfCookieName` is `null` ([#406](https://github.com/axios/axios/pull/406))
+
+### 0.13.1 (Jul 16, 2016)
+
+- Fixing issue with response data not being transformed on error ([#378](https://github.com/axios/axios/issues/378))
+
+### 0.13.0 (Jul 13, 2016)
+
+- **BREAKING** Improved error handling ([#345](https://github.com/axios/axios/pull/345))
+- **BREAKING** Response transformer now invoked in dispatcher not adapter ([10eb238](https://github.com/axios/axios/commit/10eb23865101f9347570552c04e9d6211376e25e))
+- **BREAKING** Request adapters now return a `Promise` ([157efd5](https://github.com/axios/axios/commit/157efd5615890301824e3121cc6c9d2f9b21f94a))
+- Fixing issue with `withCredentials` not being overwritten ([#343](https://github.com/axios/axios/issues/343))
+- Fixing regression with request transformer being called before request interceptor ([#352](https://github.com/axios/axios/issues/352))
+- Fixing custom instance defaults ([#341](https://github.com/axios/axios/issues/341))
+- Fixing instances created from `axios.create` to have same API as default axios ([#217](https://github.com/axios/axios/issues/217))
+
+### 0.12.0 (May 31, 2016)
+
+- Adding support for `URLSearchParams` ([#317](https://github.com/axios/axios/pull/317))
+- Adding `maxRedirects` option ([#307](https://github.com/axios/axios/pull/307))
+
+### 0.11.1 (May 17, 2016)
+
+- Fixing IE CORS support ([#313](https://github.com/axios/axios/pull/313))
+- Fixing detection of `FormData` ([#325](https://github.com/axios/axios/pull/325))
+- Adding `Axios` class to exports ([#321](https://github.com/axios/axios/pull/321))
+
+### 0.11.0 (Apr 26, 2016)
+
+- Adding support for Stream with HTTP adapter ([#296](https://github.com/axios/axios/pull/296))
+- Adding support for custom HTTP status code error ranges ([#308](https://github.com/axios/axios/pull/308))
+- Fixing issue with ArrayBuffer ([#299](https://github.com/axios/axios/pull/299))
+
+### 0.10.0 (Apr 20, 2016)
+
+- Fixing issue with some requests sending `undefined` instead of `null` ([#250](https://github.com/axios/axios/pull/250))
+- Fixing basic auth for HTTP adapter ([#252](https://github.com/axios/axios/pull/252))
+- Fixing request timeout for XHR adapter ([#227](https://github.com/axios/axios/pull/227))
+- Fixing IE8 support by using `onreadystatechange` instead of `onload` ([#249](https://github.com/axios/axios/pull/249))
+- Fixing IE9 cross domain requests ([#251](https://github.com/axios/axios/pull/251))
+- Adding `maxContentLength` option ([#275](https://github.com/axios/axios/pull/275))
+- Fixing XHR support for WebWorker environment ([#279](https://github.com/axios/axios/pull/279))
+- Adding request instance to response ([#200](https://github.com/axios/axios/pull/200))
+
+### 0.9.1 (Jan 24, 2016)
+
+- Improving handling of request timeout in node ([#124](https://github.com/axios/axios/issues/124))
+- Fixing network errors not rejecting ([#205](https://github.com/axios/axios/pull/205))
+- Fixing issue with IE rejecting on HTTP 204 ([#201](https://github.com/axios/axios/issues/201))
+- Fixing host/port when following redirects ([#198](https://github.com/axios/axios/pull/198))
+
+### 0.9.0 (Jan 18, 2016)
+
+- Adding support for custom adapters
+- Fixing Content-Type header being removed when data is false ([#195](https://github.com/axios/axios/pull/195))
+- Improving XDomainRequest implementation ([#185](https://github.com/axios/axios/pull/185))
+- Improving config merging and order of precedence ([#183](https://github.com/axios/axios/pull/183))
+- Fixing XDomainRequest support for only <= IE9 ([#182](https://github.com/axios/axios/pull/182))
+
+### 0.8.1 (Dec 14, 2015)
+
+- Adding support for passing XSRF token for cross domain requests when using `withCredentials` ([#168](https://github.com/axios/axios/pull/168))
+- Fixing error with format of basic auth header ([#178](https://github.com/axios/axios/pull/173))
+- Fixing error with JSON payloads throwing `InvalidStateError` in some cases ([#174](https://github.com/axios/axios/pull/174))
+
+### 0.8.0 (Dec 11, 2015)
+
+- Adding support for creating instances of axios ([#123](https://github.com/axios/axios/pull/123))
+- Fixing http adapter to use `Buffer` instead of `String` in case of `responseType === 'arraybuffer'` ([#128](https://github.com/axios/axios/pull/128))
+- Adding support for using custom parameter serializer with `paramsSerializer` option ([#121](https://github.com/axios/axios/pull/121))
+- Fixing issue in IE8 caused by `forEach` on `arguments` ([#127](https://github.com/axios/axios/pull/127))
+- Adding support for following redirects in node ([#146](https://github.com/axios/axios/pull/146))
+- Adding support for transparent decompression if `content-encoding` is set ([#149](https://github.com/axios/axios/pull/149))
+- Adding support for transparent XDomainRequest to handle cross domain requests in IE9 ([#140](https://github.com/axios/axios/pull/140))
+- Adding support for HTTP basic auth via Authorization header ([#167](https://github.com/axios/axios/pull/167))
+- Adding support for baseURL option ([#160](https://github.com/axios/axios/pull/160))
+
+### 0.7.0 (Sep 29, 2015)
+
+- Fixing issue with minified bundle in IE8 ([#87](https://github.com/axios/axios/pull/87))
+- Adding support for passing agent in node ([#102](https://github.com/axios/axios/pull/102))
+- Adding support for returning result from `axios.spread` for chaining ([#106](https://github.com/axios/axios/pull/106))
+- Fixing typescript definition ([#105](https://github.com/axios/axios/pull/105))
+- Fixing default timeout config for node ([#112](https://github.com/axios/axios/pull/112))
+- Adding support for use in web workers, and react-native ([#70](https://github.com/axios/axios/issue/70)), ([#98](https://github.com/axios/axios/pull/98))
+- Adding support for fetch like API `axios(url[, config])` ([#116](https://github.com/axios/axios/issues/116))
+
+### 0.6.0 (Sep 21, 2015)
+
+- Removing deprecated success/error aliases
+- Fixing issue with array params not being properly encoded ([#49](https://github.com/axios/axios/pull/49))
+- Fixing issue with User-Agent getting overridden ([#69](https://github.com/axios/axios/issues/69))
+- Adding support for timeout config ([#56](https://github.com/axios/axios/issues/56))
+- Removing es6-promise dependency
+- Fixing issue preventing `length` to be used as a parameter ([#91](https://github.com/axios/axios/pull/91))
+- Fixing issue with IE8 ([#85](https://github.com/axios/axios/pull/85))
+- Converting build to UMD
+
+### 0.5.4 (Apr 08, 2015)
+
+- Fixing issue with FormData not being sent ([#53](https://github.com/axios/axios/issues/53))
+
+### 0.5.3 (Apr 07, 2015)
+
+- Using JSON.parse unconditionally when transforming response string ([#55](https://github.com/axios/axios/issues/55))
+
+### 0.5.2 (Mar 13, 2015)
+
+- Adding support for `statusText` in response ([#46](https://github.com/axios/axios/issues/46))
+
+### 0.5.1 (Mar 10, 2015)
+
+- Fixing issue using strict mode ([#45](https://github.com/axios/axios/issues/45))
+- Fixing issue with standalone build ([#47](https://github.com/axios/axios/issues/47))
+
+### 0.5.0 (Jan 23, 2015)
+
+- Adding support for intercepetors ([#14](https://github.com/axios/axios/issues/14))
+- Updating es6-promise dependency
+
+### 0.4.2 (Dec 10, 2014)
+
+- Fixing issue with `Content-Type` when using `FormData` ([#22](https://github.com/axios/axios/issues/22))
+- Adding support for TypeScript ([#25](https://github.com/axios/axios/issues/25))
+- Fixing issue with standalone build ([#29](https://github.com/axios/axios/issues/29))
+- Fixing issue with verbs needing to be capitalized in some browsers ([#30](https://github.com/axios/axios/issues/30))
+
+### 0.4.1 (Oct 15, 2014)
+
+- Adding error handling to request for node.js ([#18](https://github.com/axios/axios/issues/18))
+
+### 0.4.0 (Oct 03, 2014)
+
+- Adding support for `ArrayBuffer` and `ArrayBufferView` ([#10](https://github.com/axios/axios/issues/10))
+- Adding support for utf-8 for node.js ([#13](https://github.com/axios/axios/issues/13))
+- Adding support for SSL for node.js ([#12](https://github.com/axios/axios/issues/12))
+- Fixing incorrect `Content-Type` header ([#9](https://github.com/axios/axios/issues/9))
+- Adding standalone build without bundled es6-promise ([#11](https://github.com/axios/axios/issues/11))
+- Deprecating `success`/`error` in favor of `then`/`catch`
+
+### 0.3.1 (Sep 16, 2014)
+
+- Fixing missing post body when using node.js ([#3](https://github.com/axios/axios/issues/3))
+
+### 0.3.0 (Sep 16, 2014)
+
+- Fixing `success` and `error` to properly receive response data as individual arguments ([#8](https://github.com/axios/axios/issues/8))
+- Updating `then` and `catch` to receive response data as a single object ([#6](https://github.com/axios/axios/issues/6))
+- Fixing issue with `all` not working ([#7](https://github.com/axios/axios/issues/7))
+
+### 0.2.2 (Sep 14, 2014)
+
+- Fixing bundling with browserify ([#4](https://github.com/axios/axios/issues/4))
+
+### 0.2.1 (Sep 12, 2014)
+
+- Fixing build problem causing ridiculous file sizes
+
+### 0.2.0 (Sep 12, 2014)
+
+- Adding support for `all` and `spread`
+- Adding support for node.js ([#1](https://github.com/axios/axios/issues/1))
+
+### 0.1.0 (Aug 29, 2014)
+
+- Initial release
diff --git a/helloworld/node_modules/axios/LICENSE b/helloworld/node_modules/axios/LICENSE
new file mode 100755
index 0000000..9876c2c
--- /dev/null
+++ b/helloworld/node_modules/axios/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2014 Matt Zabriskie
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/axios/README.md b/helloworld/node_modules/axios/README.md
new file mode 100755
index 0000000..95d91e7
--- /dev/null
+++ b/helloworld/node_modules/axios/README.md
@@ -0,0 +1,612 @@
+# axios
+
+[![npm version](https://img.shields.io/npm/v/axios.svg?style=flat-square)](https://www.npmjs.org/package/axios)
+[![build status](https://img.shields.io/travis/axios/axios.svg?style=flat-square)](https://travis-ci.org/axios/axios)
+[![code coverage](https://img.shields.io/coveralls/mzabriskie/axios.svg?style=flat-square)](https://coveralls.io/r/mzabriskie/axios)
+[![npm downloads](https://img.shields.io/npm/dm/axios.svg?style=flat-square)](http://npm-stat.com/charts.html?package=axios)
+[![gitter chat](https://img.shields.io/gitter/room/mzabriskie/axios.svg?style=flat-square)](https://gitter.im/mzabriskie/axios)
+
+Promise based HTTP client for the browser and node.js
+
+## Features
+
+- Make [XMLHttpRequests](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest) from the browser
+- Make [http](http://nodejs.org/api/http.html) requests from node.js
+- Supports the [Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) API
+- Intercept request and response
+- Transform request and response data
+- Cancel requests
+- Automatic transforms for JSON data
+- Client side support for protecting against [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery)
+
+## Browser Support
+
+![Chrome](https://raw.github.com/alrra/browser-logos/master/src/chrome/chrome_48x48.png) | ![Firefox](https://raw.github.com/alrra/browser-logos/master/src/firefox/firefox_48x48.png) | ![Safari](https://raw.github.com/alrra/browser-logos/master/src/safari/safari_48x48.png) | ![Opera](https://raw.github.com/alrra/browser-logos/master/src/opera/opera_48x48.png) | ![Edge](https://raw.github.com/alrra/browser-logos/master/src/edge/edge_48x48.png) | ![IE](https://raw.github.com/alrra/browser-logos/master/src/archive/internet-explorer_9-11/internet-explorer_9-11_48x48.png) |
+--- | --- | --- | --- | --- | --- |
+Latest ✔ | Latest ✔ | Latest ✔ | Latest ✔ | Latest ✔ | 8+ ✔ |
+
+[![Browser Matrix](https://saucelabs.com/open_sauce/build_matrix/axios.svg)](https://saucelabs.com/u/axios)
+
+## Installing
+
+Using npm:
+
+```bash
+$ npm install axios
+```
+
+Using bower:
+
+```bash
+$ bower install axios
+```
+
+Using cdn:
+
+```html
+<script src="https://unpkg.com/axios/dist/axios.min.js"></script>
+```
+
+## Example
+
+Performing a `GET` request
+
+```js
+// Make a request for a user with a given ID
+axios.get('/user?ID=12345')
+  .then(function (response) {
+    console.log(response);
+  })
+  .catch(function (error) {
+    console.log(error);
+  });
+
+// Optionally the request above could also be done as
+axios.get('/user', {
+    params: {
+      ID: 12345
+    }
+  })
+  .then(function (response) {
+    console.log(response);
+  })
+  .catch(function (error) {
+    console.log(error);
+  });
+```
+
+Performing a `POST` request
+
+```js
+axios.post('/user', {
+    firstName: 'Fred',
+    lastName: 'Flintstone'
+  })
+  .then(function (response) {
+    console.log(response);
+  })
+  .catch(function (error) {
+    console.log(error);
+  });
+```
+
+Performing multiple concurrent requests
+
+```js
+function getUserAccount() {
+  return axios.get('/user/12345');
+}
+
+function getUserPermissions() {
+  return axios.get('/user/12345/permissions');
+}
+
+axios.all([getUserAccount(), getUserPermissions()])
+  .then(axios.spread(function (acct, perms) {
+    // Both requests are now complete
+  }));
+```
+
+## axios API
+
+Requests can be made by passing the relevant config to `axios`.
+
+##### axios(config)
+
+```js
+// Send a POST request
+axios({
+  method: 'post',
+  url: '/user/12345',
+  data: {
+    firstName: 'Fred',
+    lastName: 'Flintstone'
+  }
+});
+```
+
+```js
+// GET request for remote image
+axios({
+  method:'get',
+  url:'http://bit.ly/2mTM3nY',
+  responseType:'stream'
+})
+  .then(function(response) {
+  response.data.pipe(fs.createWriteStream('ada_lovelace.jpg'))
+});
+```
+
+##### axios(url[, config])
+
+```js
+// Send a GET request (default method)
+axios('/user/12345');
+```
+
+### Request method aliases
+
+For convenience aliases have been provided for all supported request methods.
+
+##### axios.request(config)
+##### axios.get(url[, config])
+##### axios.delete(url[, config])
+##### axios.head(url[, config])
+##### axios.options(url[, config])
+##### axios.post(url[, data[, config]])
+##### axios.put(url[, data[, config]])
+##### axios.patch(url[, data[, config]])
+
+###### NOTE
+When using the alias methods `url`, `method`, and `data` properties don't need to be specified in config.
+
+### Concurrency
+
+Helper functions for dealing with concurrent requests.
+
+##### axios.all(iterable)
+##### axios.spread(callback)
+
+### Creating an instance
+
+You can create a new instance of axios with a custom config.
+
+##### axios.create([config])
+
+```js
+var instance = axios.create({
+  baseURL: 'https://some-domain.com/api/',
+  timeout: 1000,
+  headers: {'X-Custom-Header': 'foobar'}
+});
+```
+
+### Instance methods
+
+The available instance methods are listed below. The specified config will be merged with the instance config.
+
+##### axios#request(config)
+##### axios#get(url[, config])
+##### axios#delete(url[, config])
+##### axios#head(url[, config])
+##### axios#options(url[, config])
+##### axios#post(url[, data[, config]])
+##### axios#put(url[, data[, config]])
+##### axios#patch(url[, data[, config]])
+
+## Request Config
+
+These are the available config options for making requests. Only the `url` is required. Requests will default to `GET` if `method` is not specified.
+
+```js
+{
+  // `url` is the server URL that will be used for the request
+  url: '/user',
+
+  // `method` is the request method to be used when making the request
+  method: 'get', // default
+
+  // `baseURL` will be prepended to `url` unless `url` is absolute.
+  // It can be convenient to set `baseURL` for an instance of axios to pass relative URLs
+  // to methods of that instance.
+  baseURL: 'https://some-domain.com/api/',
+
+  // `transformRequest` allows changes to the request data before it is sent to the server
+  // This is only applicable for request methods 'PUT', 'POST', and 'PATCH'
+  // The last function in the array must return a string or an instance of Buffer, ArrayBuffer,
+  // FormData or Stream
+  // You may modify the headers object.
+  transformRequest: [function (data, headers) {
+    // Do whatever you want to transform the data
+
+    return data;
+  }],
+
+  // `transformResponse` allows changes to the response data to be made before
+  // it is passed to then/catch
+  transformResponse: [function (data) {
+    // Do whatever you want to transform the data
+
+    return data;
+  }],
+
+  // `headers` are custom headers to be sent
+  headers: {'X-Requested-With': 'XMLHttpRequest'},
+
+  // `params` are the URL parameters to be sent with the request
+  // Must be a plain object or a URLSearchParams object
+  params: {
+    ID: 12345
+  },
+
+  // `paramsSerializer` is an optional function in charge of serializing `params`
+  // (e.g. https://www.npmjs.com/package/qs, http://api.jquery.com/jquery.param/)
+  paramsSerializer: function(params) {
+    return Qs.stringify(params, {arrayFormat: 'brackets'})
+  },
+
+  // `data` is the data to be sent as the request body
+  // Only applicable for request methods 'PUT', 'POST', and 'PATCH'
+  // When no `transformRequest` is set, must be of one of the following types:
+  // - string, plain object, ArrayBuffer, ArrayBufferView, URLSearchParams
+  // - Browser only: FormData, File, Blob
+  // - Node only: Stream, Buffer
+  data: {
+    firstName: 'Fred'
+  },
+
+  // `timeout` specifies the number of milliseconds before the request times out.
+  // If the request takes longer than `timeout`, the request will be aborted.
+  timeout: 1000,
+
+  // `withCredentials` indicates whether or not cross-site Access-Control requests
+  // should be made using credentials
+  withCredentials: false, // default
+
+  // `adapter` allows custom handling of requests which makes testing easier.
+  // Return a promise and supply a valid response (see lib/adapters/README.md).
+  adapter: function (config) {
+    /* ... */
+  },
+
+  // `auth` indicates that HTTP Basic auth should be used, and supplies credentials.
+  // This will set an `Authorization` header, overwriting any existing
+  // `Authorization` custom headers you have set using `headers`.
+  auth: {
+    username: 'janedoe',
+    password: 's00pers3cret'
+  },
+
+  // `responseType` indicates the type of data that the server will respond with
+  // options are 'arraybuffer', 'blob', 'document', 'json', 'text', 'stream'
+  responseType: 'json', // default
+
+  // `xsrfCookieName` is the name of the cookie to use as a value for xsrf token
+  xsrfCookieName: 'XSRF-TOKEN', // default
+
+  // `xsrfHeaderName` is the name of the http header that carries the xsrf token value
+  xsrfHeaderName: 'X-XSRF-TOKEN', // default
+
+  // `onUploadProgress` allows handling of progress events for uploads
+  onUploadProgress: function (progressEvent) {
+    // Do whatever you want with the native progress event
+  },
+
+  // `onDownloadProgress` allows handling of progress events for downloads
+  onDownloadProgress: function (progressEvent) {
+    // Do whatever you want with the native progress event
+  },
+
+  // `maxContentLength` defines the max size of the http response content allowed
+  maxContentLength: 2000,
+
+  // `validateStatus` defines whether to resolve or reject the promise for a given
+  // HTTP response status code. If `validateStatus` returns `true` (or is set to `null`
+  // or `undefined`), the promise will be resolved; otherwise, the promise will be
+  // rejected.
+  validateStatus: function (status) {
+    return status >= 200 && status < 300; // default
+  },
+
+  // `maxRedirects` defines the maximum number of redirects to follow in node.js.
+  // If set to 0, no redirects will be followed.
+  maxRedirects: 5, // default
+
+  // `httpAgent` and `httpsAgent` define a custom agent to be used when performing http
+  // and https requests, respectively, in node.js. This allows options to be added like
+  // `keepAlive` that are not enabled by default.
+  httpAgent: new http.Agent({ keepAlive: true }),
+  httpsAgent: new https.Agent({ keepAlive: true }),
+
+  // 'proxy' defines the hostname and port of the proxy server
+  // Use `false` to disable proxies, ignoring environment variables.
+  // `auth` indicates that HTTP Basic auth should be used to connect to the proxy, and
+  // supplies credentials.
+  // This will set an `Proxy-Authorization` header, overwriting any existing
+  // `Proxy-Authorization` custom headers you have set using `headers`.
+  proxy: {
+    host: '127.0.0.1',
+    port: 9000,
+    auth: {
+      username: 'mikeymike',
+      password: 'rapunz3l'
+    }
+  },
+
+  // `cancelToken` specifies a cancel token that can be used to cancel the request
+  // (see Cancellation section below for details)
+  cancelToken: new CancelToken(function (cancel) {
+  })
+}
+```
+
+## Response Schema
+
+The response for a request contains the following information.
+
+```js
+{
+  // `data` is the response that was provided by the server
+  data: {},
+
+  // `status` is the HTTP status code from the server response
+  status: 200,
+
+  // `statusText` is the HTTP status message from the server response
+  statusText: 'OK',
+
+  // `headers` the headers that the server responded with
+  // All header names are lower cased
+  headers: {},
+
+  // `config` is the config that was provided to `axios` for the request
+  config: {},
+
+  // `request` is the request that generated this response
+  // It is the last ClientRequest instance in node.js (in redirects)
+  // and an XMLHttpRequest instance the browser
+  request: {}
+}
+```
+
+When using `then`, you will receive the response as follows:
+
+```js
+axios.get('/user/12345')
+  .then(function(response) {
+    console.log(response.data);
+    console.log(response.status);
+    console.log(response.statusText);
+    console.log(response.headers);
+    console.log(response.config);
+  });
+```
+
+When using `catch`, or passing a [rejection callback](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/then) as second parameter of `then`, the response will be available through the `error` object as explained in the [Handling Errors](#handling-errors) section.
+
+## Config Defaults
+
+You can specify config defaults that will be applied to every request.
+
+### Global axios defaults
+
+```js
+axios.defaults.baseURL = 'https://api.example.com';
+axios.defaults.headers.common['Authorization'] = AUTH_TOKEN;
+axios.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded';
+```
+
+### Custom instance defaults
+
+```js
+// Set config defaults when creating the instance
+var instance = axios.create({
+  baseURL: 'https://api.example.com'
+});
+
+// Alter defaults after instance has been created
+instance.defaults.headers.common['Authorization'] = AUTH_TOKEN;
+```
+
+### Config order of precedence
+
+Config will be merged with an order of precedence. The order is library defaults found in `lib/defaults.js`, then `defaults` property of the instance, and finally `config` argument for the request. The latter will take precedence over the former. Here's an example.
+
+```js
+// Create an instance using the config defaults provided by the library
+// At this point the timeout config value is `0` as is the default for the library
+var instance = axios.create();
+
+// Override timeout default for the library
+// Now all requests will wait 2.5 seconds before timing out
+instance.defaults.timeout = 2500;
+
+// Override timeout for this request as it's known to take a long time
+instance.get('/longRequest', {
+  timeout: 5000
+});
+```
+
+## Interceptors
+
+You can intercept requests or responses before they are handled by `then` or `catch`.
+
+```js
+// Add a request interceptor
+axios.interceptors.request.use(function (config) {
+    // Do something before request is sent
+    return config;
+  }, function (error) {
+    // Do something with request error
+    return Promise.reject(error);
+  });
+
+// Add a response interceptor
+axios.interceptors.response.use(function (response) {
+    // Do something with response data
+    return response;
+  }, function (error) {
+    // Do something with response error
+    return Promise.reject(error);
+  });
+```
+
+If you may need to remove an interceptor later you can.
+
+```js
+var myInterceptor = axios.interceptors.request.use(function () {/*...*/});
+axios.interceptors.request.eject(myInterceptor);
+```
+
+You can add interceptors to a custom instance of axios.
+
+```js
+var instance = axios.create();
+instance.interceptors.request.use(function () {/*...*/});
+```
+
+## Handling Errors
+
+```js
+axios.get('/user/12345')
+  .catch(function (error) {
+    if (error.response) {
+      // The request was made and the server responded with a status code
+      // that falls out of the range of 2xx
+      console.log(error.response.data);
+      console.log(error.response.status);
+      console.log(error.response.headers);
+    } else if (error.request) {
+      // The request was made but no response was received
+      // `error.request` is an instance of XMLHttpRequest in the browser and an instance of
+      // http.ClientRequest in node.js
+      console.log(error.request);
+    } else {
+      // Something happened in setting up the request that triggered an Error
+      console.log('Error', error.message);
+    }
+    console.log(error.config);
+  });
+```
+
+You can define a custom HTTP status code error range using the `validateStatus` config option.
+
+```js
+axios.get('/user/12345', {
+  validateStatus: function (status) {
+    return status < 500; // Reject only if the status code is greater than or equal to 500
+  }
+})
+```
+
+## Cancellation
+
+You can cancel a request using a *cancel token*.
+
+> The axios cancel token API is based on the withdrawn [cancelable promises proposal](https://github.com/tc39/proposal-cancelable-promises).
+
+You can create a cancel token using the `CancelToken.source` factory as shown below:
+
+```js
+var CancelToken = axios.CancelToken;
+var source = CancelToken.source();
+
+axios.get('/user/12345', {
+  cancelToken: source.token
+}).catch(function(thrown) {
+  if (axios.isCancel(thrown)) {
+    console.log('Request canceled', thrown.message);
+  } else {
+    // handle error
+  }
+});
+
+// cancel the request (the message parameter is optional)
+source.cancel('Operation canceled by the user.');
+```
+
+You can also create a cancel token by passing an executor function to the `CancelToken` constructor:
+
+```js
+var CancelToken = axios.CancelToken;
+var cancel;
+
+axios.get('/user/12345', {
+  cancelToken: new CancelToken(function executor(c) {
+    // An executor function receives a cancel function as a parameter
+    cancel = c;
+  })
+});
+
+// cancel the request
+cancel();
+```
+
+> Note: you can cancel several requests with the same cancel token.
+
+## Using application/x-www-form-urlencoded format
+
+By default, axios serializes JavaScript objects to `JSON`. To send data in the `application/x-www-form-urlencoded` format instead, you can use one of the following options.
+
+### Browser
+
+In a browser, you can use the [`URLSearchParams`](https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams) API as follows:
+
+```js
+var params = new URLSearchParams();
+params.append('param1', 'value1');
+params.append('param2', 'value2');
+axios.post('/foo', params);
+```
+
+> Note that `URLSearchParams` is not supported by all browsers (see [caniuse.com](http://www.caniuse.com/#feat=urlsearchparams)), but there is a [polyfill](https://github.com/WebReflection/url-search-params) available (make sure to polyfill the global environment).
+
+Alternatively, you can encode data using the [`qs`](https://github.com/ljharb/qs) library:
+
+```js
+var qs = require('qs');
+axios.post('/foo', qs.stringify({ 'bar': 123 }));
+```
+
+### Node.js
+
+In node.js, you can use the [`querystring`](https://nodejs.org/api/querystring.html) module as follows:
+
+```js
+var querystring = require('querystring');
+axios.post('http://something.com/', querystring.stringify({ foo: 'bar' }));
+```
+
+You can also use the [`qs`](https://github.com/ljharb/qs) library.
+
+## Semver
+
+Until axios reaches a `1.0` release, breaking changes will be released with a new minor version. For example `0.5.1`, and `0.5.4` will have the same API, but `0.6.0` will have breaking changes.
+
+## Promises
+
+axios depends on a native ES6 Promise implementation to be [supported](http://caniuse.com/promises).
+If your environment doesn't support ES6 Promises, you can [polyfill](https://github.com/jakearchibald/es6-promise).
+
+## TypeScript
+axios includes [TypeScript](http://typescriptlang.org) definitions.
+```typescript
+import axios from 'axios';
+axios.get('/user?ID=12345');
+```
+
+## Resources
+
+* [Changelog](https://github.com/axios/axios/blob/master/CHANGELOG.md)
+* [Upgrade Guide](https://github.com/axios/axios/blob/master/UPGRADE_GUIDE.md)
+* [Ecosystem](https://github.com/axios/axios/blob/master/ECOSYSTEM.md)
+* [Contributing Guide](https://github.com/axios/axios/blob/master/CONTRIBUTING.md)
+* [Code of Conduct](https://github.com/axios/axios/blob/master/CODE_OF_CONDUCT.md)
+
+## Credits
+
+axios is heavily inspired by the [$http service](https://docs.angularjs.org/api/ng/service/$http) provided in [Angular](https://angularjs.org/). Ultimately axios is an effort to provide a standalone `$http`-like service for use outside of Angular.
+
+## License
+
+MIT
diff --git a/helloworld/node_modules/axios/UPGRADE_GUIDE.md b/helloworld/node_modules/axios/UPGRADE_GUIDE.md
new file mode 100755
index 0000000..eedb049
--- /dev/null
+++ b/helloworld/node_modules/axios/UPGRADE_GUIDE.md
@@ -0,0 +1,162 @@
+# Upgrade Guide
+
+### 0.15.x -> 0.16.0
+
+#### `Promise` Type Declarations
+
+The `Promise` type declarations have been removed from the axios typings in favor of the built-in type declarations. If you use axios in a TypeScript project that targets `ES5`, please make sure to include the `es2015.promise` lib. Please see [this post](https://blog.mariusschulz.com/2016/11/25/typescript-2-0-built-in-type-declarations) for details.
+
+### 0.13.x -> 0.14.0
+
+#### TypeScript Definitions
+
+The axios TypeScript definitions have been updated to match the axios API and use the ES2015 module syntax.
+
+Please use the following `import` statement to import axios in TypeScript:
+
+```typescript
+import axios from 'axios';
+
+axios.get('/foo')
+  .then(response => console.log(response))
+  .catch(error => console.log(error));
+```
+
+#### `agent` Config Option
+
+The `agent` config option has been replaced with two new options: `httpAgent` and `httpsAgent`. Please use them instead.
+
+```js
+{
+  // Define a custom agent for HTTP
+  httpAgent: new http.Agent({ keepAlive: true }),
+  // Define a custom agent for HTTPS
+  httpsAgent: new https.Agent({ keepAlive: true })
+}
+```
+
+#### `progress` Config Option
+
+The `progress` config option has been replaced with the `onUploadProgress` and `onDownloadProgress` options.
+
+```js
+{
+  // Define a handler for upload progress events
+  onUploadProgress: function (progressEvent) {
+    // ...
+  },
+
+  // Define a handler for download progress events
+  onDownloadProgress: function (progressEvent) {
+    // ...
+  }
+}
+```
+
+### 0.12.x -> 0.13.0
+
+The `0.13.0` release contains several changes to custom adapters and error handling.
+
+#### Error Handling
+
+Previous to this release an error could either be a server response with bad status code or an actual `Error`. With this release Promise will always reject with an `Error`. In the case that a response was received, the `Error` will also include the response.
+
+```js
+axios.get('/user/12345')
+  .catch((error) => {
+    console.log(error.message);
+    console.log(error.code); // Not always specified
+    console.log(error.config); // The config that was used to make the request
+    console.log(error.response); // Only available if response was received from the server
+  });
+```
+
+#### Request Adapters
+
+This release changes a few things about how request adapters work. Please take note if you are using your own custom adapter.
+
+1. Response transformer is now called outside of adapter.
+2. Request adapter returns a `Promise`.
+
+This means that you no longer need to invoke `transformData` on response data. You will also no longer receive `resolve` and `reject` as arguments in your adapter.
+
+Previous code:
+
+```js
+function myAdapter(resolve, reject, config) {
+  var response = {
+    data: transformData(
+      responseData,
+      responseHeaders,
+      config.transformResponse
+    ),
+    status: request.status,
+    statusText: request.statusText,
+    headers: responseHeaders
+  };
+  settle(resolve, reject, response);
+}
+```
+
+New code:
+
+```js
+function myAdapter(config) {
+  return new Promise(function (resolve, reject) {
+    var response = {
+      data: responseData,
+      status: request.status,
+      statusText: request.statusText,
+      headers: responseHeaders
+    };
+    settle(resolve, reject, response);
+  });
+}
+```
+
+See the related commits for more details:
+- [Response transformers](https://github.com/axios/axios/commit/10eb23865101f9347570552c04e9d6211376e25e)
+- [Request adapter Promise](https://github.com/axios/axios/commit/157efd5615890301824e3121cc6c9d2f9b21f94a)
+
+### 0.5.x -> 0.6.0
+
+The `0.6.0` release contains mostly bug fixes, but there are a couple things to be aware of when upgrading.
+
+#### ES6 Promise Polyfill
+
+Up until the `0.6.0` release ES6 `Promise` was being polyfilled using [es6-promise](https://github.com/jakearchibald/es6-promise). With this release, the polyfill has been removed, and you will need to supply it yourself if your environment needs it.
+
+```js
+require('es6-promise').polyfill();
+var axios = require('axios');
+```
+
+This will polyfill the global environment, and only needs to be done once.
+
+#### `axios.success`/`axios.error`
+
+The `success`, and `error` aliases were deprectated in [0.4.0](https://github.com/axios/axios/blob/master/CHANGELOG.md#040-oct-03-2014). As of this release they have been removed entirely. Instead please use `axios.then`, and `axios.catch` respectively.
+
+```js
+axios.get('some/url')
+  .then(function (res) {
+    /* ... */
+  })
+  .catch(function (err) {
+    /* ... */
+  });
+```
+
+#### UMD
+
+Previous versions of axios shipped with an AMD, CommonJS, and Global build. This has all been rolled into a single UMD build.
+
+```js
+// AMD
+require(['bower_components/axios/dist/axios'], function (axios) {
+  /* ... */
+});
+
+// CommonJS
+var axios = require('axios/dist/axios');
+```
diff --git a/helloworld/node_modules/axios/dist/axios.js b/helloworld/node_modules/axios/dist/axios.js
new file mode 100755
index 0000000..4973268
--- /dev/null
+++ b/helloworld/node_modules/axios/dist/axios.js
@@ -0,0 +1,1601 @@
+/* axios v0.17.1 | (c) 2017 by Matt Zabriskie */
+(function webpackUniversalModuleDefinition(root, factory) {
+	if(typeof exports === 'object' && typeof module === 'object')
+		module.exports = factory();
+	else if(typeof define === 'function' && define.amd)
+		define([], factory);
+	else if(typeof exports === 'object')
+		exports["axios"] = factory();
+	else
+		root["axios"] = factory();
+})(this, function() {
+return /******/ (function(modules) { // webpackBootstrap
+/******/ 	// The module cache
+/******/ 	var installedModules = {};
+/******/
+/******/ 	// The require function
+/******/ 	function __webpack_require__(moduleId) {
+/******/
+/******/ 		// Check if module is in cache
+/******/ 		if(installedModules[moduleId])
+/******/ 			return installedModules[moduleId].exports;
+/******/
+/******/ 		// Create a new module (and put it into the cache)
+/******/ 		var module = installedModules[moduleId] = {
+/******/ 			exports: {},
+/******/ 			id: moduleId,
+/******/ 			loaded: false
+/******/ 		};
+/******/
+/******/ 		// Execute the module function
+/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+/******/
+/******/ 		// Flag the module as loaded
+/******/ 		module.loaded = true;
+/******/
+/******/ 		// Return the exports of the module
+/******/ 		return module.exports;
+/******/ 	}
+/******/
+/******/
+/******/ 	// expose the modules object (__webpack_modules__)
+/******/ 	__webpack_require__.m = modules;
+/******/
+/******/ 	// expose the module cache
+/******/ 	__webpack_require__.c = installedModules;
+/******/
+/******/ 	// __webpack_public_path__
+/******/ 	__webpack_require__.p = "";
+/******/
+/******/ 	// Load entry module and return exports
+/******/ 	return __webpack_require__(0);
+/******/ })
+/************************************************************************/
+/******/ ([
+/* 0 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	module.exports = __webpack_require__(1);
+
+/***/ }),
+/* 1 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var utils = __webpack_require__(2);
+	var bind = __webpack_require__(3);
+	var Axios = __webpack_require__(5);
+	var defaults = __webpack_require__(6);
+	
+	/**
+	 * Create an instance of Axios
+	 *
+	 * @param {Object} defaultConfig The default config for the instance
+	 * @return {Axios} A new instance of Axios
+	 */
+	function createInstance(defaultConfig) {
+	  var context = new Axios(defaultConfig);
+	  var instance = bind(Axios.prototype.request, context);
+	
+	  // Copy axios.prototype to instance
+	  utils.extend(instance, Axios.prototype, context);
+	
+	  // Copy context to instance
+	  utils.extend(instance, context);
+	
+	  return instance;
+	}
+	
+	// Create the default instance to be exported
+	var axios = createInstance(defaults);
+	
+	// Expose Axios class to allow class inheritance
+	axios.Axios = Axios;
+	
+	// Factory for creating new instances
+	axios.create = function create(instanceConfig) {
+	  return createInstance(utils.merge(defaults, instanceConfig));
+	};
+	
+	// Expose Cancel & CancelToken
+	axios.Cancel = __webpack_require__(23);
+	axios.CancelToken = __webpack_require__(24);
+	axios.isCancel = __webpack_require__(20);
+	
+	// Expose all/spread
+	axios.all = function all(promises) {
+	  return Promise.all(promises);
+	};
+	axios.spread = __webpack_require__(25);
+	
+	module.exports = axios;
+	
+	// Allow use of default import syntax in TypeScript
+	module.exports.default = axios;
+
+
+/***/ }),
+/* 2 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var bind = __webpack_require__(3);
+	var isBuffer = __webpack_require__(4);
+	
+	/*global toString:true*/
+	
+	// utils is a library of generic helper functions non-specific to axios
+	
+	var toString = Object.prototype.toString;
+	
+	/**
+	 * Determine if a value is an Array
+	 *
+	 * @param {Object} val The value to test
+	 * @returns {boolean} True if value is an Array, otherwise false
+	 */
+	function isArray(val) {
+	  return toString.call(val) === '[object Array]';
+	}
+	
+	/**
+	 * Determine if a value is an ArrayBuffer
+	 *
+	 * @param {Object} val The value to test
+	 * @returns {boolean} True if value is an ArrayBuffer, otherwise false
+	 */
+	function isArrayBuffer(val) {
+	  return toString.call(val) === '[object ArrayBuffer]';
+	}
+	
+	/**
+	 * Determine if a value is a FormData
+	 *
+	 * @param {Object} val The value to test
+	 * @returns {boolean} True if value is an FormData, otherwise false
+	 */
+	function isFormData(val) {
+	  return (typeof FormData !== 'undefined') && (val instanceof FormData);
+	}
+	
+	/**
+	 * Determine if a value is a view on an ArrayBuffer
+	 *
+	 * @param {Object} val The value to test
+	 * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false
+	 */
+	function isArrayBufferView(val) {
+	  var result;
+	  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {
+	    result = ArrayBuffer.isView(val);
+	  } else {
+	    result = (val) && (val.buffer) && (val.buffer instanceof ArrayBuffer);
+	  }
+	  return result;
+	}
+	
+	/**
+	 * Determine if a value is a String
+	 *
+	 * @param {Object} val The value to test
+	 * @returns {boolean} True if value is a String, otherwise false
+	 */
+	function isString(val) {
+	  return typeof val === 'string';
+	}
+	
+	/**
+	 * Determine if a value is a Number
+	 *
+	 * @param {Object} val The value to test
+	 * @returns {boolean} True if value is a Number, otherwise false
+	 */
+	function isNumber(val) {
+	  return typeof val === 'number';
+	}
+	
+	/**
+	 * Determine if a value is undefined
+	 *
+	 * @param {Object} val The value to test
+	 * @returns {boolean} True if the value is undefined, otherwise false
+	 */
+	function isUndefined(val) {
+	  return typeof val === 'undefined';
+	}
+	
+	/**
+	 * Determine if a value is an Object
+	 *
+	 * @param {Object} val The value to test
+	 * @returns {boolean} True if value is an Object, otherwise false
+	 */
+	function isObject(val) {
+	  return val !== null && typeof val === 'object';
+	}
+	
+	/**
+	 * Determine if a value is a Date
+	 *
+	 * @param {Object} val The value to test
+	 * @returns {boolean} True if value is a Date, otherwise false
+	 */
+	function isDate(val) {
+	  return toString.call(val) === '[object Date]';
+	}
+	
+	/**
+	 * Determine if a value is a File
+	 *
+	 * @param {Object} val The value to test
+	 * @returns {boolean} True if value is a File, otherwise false
+	 */
+	function isFile(val) {
+	  return toString.call(val) === '[object File]';
+	}
+	
+	/**
+	 * Determine if a value is a Blob
+	 *
+	 * @param {Object} val The value to test
+	 * @returns {boolean} True if value is a Blob, otherwise false
+	 */
+	function isBlob(val) {
+	  return toString.call(val) === '[object Blob]';
+	}
+	
+	/**
+	 * Determine if a value is a Function
+	 *
+	 * @param {Object} val The value to test
+	 * @returns {boolean} True if value is a Function, otherwise false
+	 */
+	function isFunction(val) {
+	  return toString.call(val) === '[object Function]';
+	}
+	
+	/**
+	 * Determine if a value is a Stream
+	 *
+	 * @param {Object} val The value to test
+	 * @returns {boolean} True if value is a Stream, otherwise false
+	 */
+	function isStream(val) {
+	  return isObject(val) && isFunction(val.pipe);
+	}
+	
+	/**
+	 * Determine if a value is a URLSearchParams object
+	 *
+	 * @param {Object} val The value to test
+	 * @returns {boolean} True if value is a URLSearchParams object, otherwise false
+	 */
+	function isURLSearchParams(val) {
+	  return typeof URLSearchParams !== 'undefined' && val instanceof URLSearchParams;
+	}
+	
+	/**
+	 * Trim excess whitespace off the beginning and end of a string
+	 *
+	 * @param {String} str The String to trim
+	 * @returns {String} The String freed of excess whitespace
+	 */
+	function trim(str) {
+	  return str.replace(/^\s*/, '').replace(/\s*$/, '');
+	}
+	
+	/**
+	 * Determine if we're running in a standard browser environment
+	 *
+	 * This allows axios to run in a web worker, and react-native.
+	 * Both environments support XMLHttpRequest, but not fully standard globals.
+	 *
+	 * web workers:
+	 *  typeof window -> undefined
+	 *  typeof document -> undefined
+	 *
+	 * react-native:
+	 *  navigator.product -> 'ReactNative'
+	 */
+	function isStandardBrowserEnv() {
+	  if (typeof navigator !== 'undefined' && navigator.product === 'ReactNative') {
+	    return false;
+	  }
+	  return (
+	    typeof window !== 'undefined' &&
+	    typeof document !== 'undefined'
+	  );
+	}
+	
+	/**
+	 * Iterate over an Array or an Object invoking a function for each item.
+	 *
+	 * If `obj` is an Array callback will be called passing
+	 * the value, index, and complete array for each item.
+	 *
+	 * If 'obj' is an Object callback will be called passing
+	 * the value, key, and complete object for each property.
+	 *
+	 * @param {Object|Array} obj The object to iterate
+	 * @param {Function} fn The callback to invoke for each item
+	 */
+	function forEach(obj, fn) {
+	  // Don't bother if no value provided
+	  if (obj === null || typeof obj === 'undefined') {
+	    return;
+	  }
+	
+	  // Force an array if not already something iterable
+	  if (typeof obj !== 'object') {
+	    /*eslint no-param-reassign:0*/
+	    obj = [obj];
+	  }
+	
+	  if (isArray(obj)) {
+	    // Iterate over array values
+	    for (var i = 0, l = obj.length; i < l; i++) {
+	      fn.call(null, obj[i], i, obj);
+	    }
+	  } else {
+	    // Iterate over object keys
+	    for (var key in obj) {
+	      if (Object.prototype.hasOwnProperty.call(obj, key)) {
+	        fn.call(null, obj[key], key, obj);
+	      }
+	    }
+	  }
+	}
+	
+	/**
+	 * Accepts varargs expecting each argument to be an object, then
+	 * immutably merges the properties of each object and returns result.
+	 *
+	 * When multiple objects contain the same key the later object in
+	 * the arguments list will take precedence.
+	 *
+	 * Example:
+	 *
+	 * ```js
+	 * var result = merge({foo: 123}, {foo: 456});
+	 * console.log(result.foo); // outputs 456
+	 * ```
+	 *
+	 * @param {Object} obj1 Object to merge
+	 * @returns {Object} Result of all merge properties
+	 */
+	function merge(/* obj1, obj2, obj3, ... */) {
+	  var result = {};
+	  function assignValue(val, key) {
+	    if (typeof result[key] === 'object' && typeof val === 'object') {
+	      result[key] = merge(result[key], val);
+	    } else {
+	      result[key] = val;
+	    }
+	  }
+	
+	  for (var i = 0, l = arguments.length; i < l; i++) {
+	    forEach(arguments[i], assignValue);
+	  }
+	  return result;
+	}
+	
+	/**
+	 * Extends object a by mutably adding to it the properties of object b.
+	 *
+	 * @param {Object} a The object to be extended
+	 * @param {Object} b The object to copy properties from
+	 * @param {Object} thisArg The object to bind function to
+	 * @return {Object} The resulting value of object a
+	 */
+	function extend(a, b, thisArg) {
+	  forEach(b, function assignValue(val, key) {
+	    if (thisArg && typeof val === 'function') {
+	      a[key] = bind(val, thisArg);
+	    } else {
+	      a[key] = val;
+	    }
+	  });
+	  return a;
+	}
+	
+	module.exports = {
+	  isArray: isArray,
+	  isArrayBuffer: isArrayBuffer,
+	  isBuffer: isBuffer,
+	  isFormData: isFormData,
+	  isArrayBufferView: isArrayBufferView,
+	  isString: isString,
+	  isNumber: isNumber,
+	  isObject: isObject,
+	  isUndefined: isUndefined,
+	  isDate: isDate,
+	  isFile: isFile,
+	  isBlob: isBlob,
+	  isFunction: isFunction,
+	  isStream: isStream,
+	  isURLSearchParams: isURLSearchParams,
+	  isStandardBrowserEnv: isStandardBrowserEnv,
+	  forEach: forEach,
+	  merge: merge,
+	  extend: extend,
+	  trim: trim
+	};
+
+
+/***/ }),
+/* 3 */
+/***/ (function(module, exports) {
+
+	'use strict';
+	
+	module.exports = function bind(fn, thisArg) {
+	  return function wrap() {
+	    var args = new Array(arguments.length);
+	    for (var i = 0; i < args.length; i++) {
+	      args[i] = arguments[i];
+	    }
+	    return fn.apply(thisArg, args);
+	  };
+	};
+
+
+/***/ }),
+/* 4 */
+/***/ (function(module, exports) {
+
+	/*!
+	 * Determine if an object is a Buffer
+	 *
+	 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+	 * @license  MIT
+	 */
+	
+	// The _isBuffer check is for Safari 5-7 support, because it's missing
+	// Object.prototype.constructor. Remove this eventually
+	module.exports = function (obj) {
+	  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
+	}
+	
+	function isBuffer (obj) {
+	  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
+	}
+	
+	// For Node v0.10 support. Remove this eventually.
+	function isSlowBuffer (obj) {
+	  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
+	}
+
+
+/***/ }),
+/* 5 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var defaults = __webpack_require__(6);
+	var utils = __webpack_require__(2);
+	var InterceptorManager = __webpack_require__(17);
+	var dispatchRequest = __webpack_require__(18);
+	
+	/**
+	 * Create a new instance of Axios
+	 *
+	 * @param {Object} instanceConfig The default config for the instance
+	 */
+	function Axios(instanceConfig) {
+	  this.defaults = instanceConfig;
+	  this.interceptors = {
+	    request: new InterceptorManager(),
+	    response: new InterceptorManager()
+	  };
+	}
+	
+	/**
+	 * Dispatch a request
+	 *
+	 * @param {Object} config The config specific for this request (merged with this.defaults)
+	 */
+	Axios.prototype.request = function request(config) {
+	  /*eslint no-param-reassign:0*/
+	  // Allow for axios('example/url'[, config]) a la fetch API
+	  if (typeof config === 'string') {
+	    config = utils.merge({
+	      url: arguments[0]
+	    }, arguments[1]);
+	  }
+	
+	  config = utils.merge(defaults, this.defaults, { method: 'get' }, config);
+	  config.method = config.method.toLowerCase();
+	
+	  // Hook up interceptors middleware
+	  var chain = [dispatchRequest, undefined];
+	  var promise = Promise.resolve(config);
+	
+	  this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {
+	    chain.unshift(interceptor.fulfilled, interceptor.rejected);
+	  });
+	
+	  this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {
+	    chain.push(interceptor.fulfilled, interceptor.rejected);
+	  });
+	
+	  while (chain.length) {
+	    promise = promise.then(chain.shift(), chain.shift());
+	  }
+	
+	  return promise;
+	};
+	
+	// Provide aliases for supported request methods
+	utils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {
+	  /*eslint func-names:0*/
+	  Axios.prototype[method] = function(url, config) {
+	    return this.request(utils.merge(config || {}, {
+	      method: method,
+	      url: url
+	    }));
+	  };
+	});
+	
+	utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
+	  /*eslint func-names:0*/
+	  Axios.prototype[method] = function(url, data, config) {
+	    return this.request(utils.merge(config || {}, {
+	      method: method,
+	      url: url,
+	      data: data
+	    }));
+	  };
+	});
+	
+	module.exports = Axios;
+
+
+/***/ }),
+/* 6 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var utils = __webpack_require__(2);
+	var normalizeHeaderName = __webpack_require__(7);
+	
+	var DEFAULT_CONTENT_TYPE = {
+	  'Content-Type': 'application/x-www-form-urlencoded'
+	};
+	
+	function setContentTypeIfUnset(headers, value) {
+	  if (!utils.isUndefined(headers) && utils.isUndefined(headers['Content-Type'])) {
+	    headers['Content-Type'] = value;
+	  }
+	}
+	
+	function getDefaultAdapter() {
+	  var adapter;
+	  if (typeof XMLHttpRequest !== 'undefined') {
+	    // For browsers use XHR adapter
+	    adapter = __webpack_require__(8);
+	  } else if (typeof process !== 'undefined') {
+	    // For node use HTTP adapter
+	    adapter = __webpack_require__(8);
+	  }
+	  return adapter;
+	}
+	
+	var defaults = {
+	  adapter: getDefaultAdapter(),
+	
+	  transformRequest: [function transformRequest(data, headers) {
+	    normalizeHeaderName(headers, 'Content-Type');
+	    if (utils.isFormData(data) ||
+	      utils.isArrayBuffer(data) ||
+	      utils.isBuffer(data) ||
+	      utils.isStream(data) ||
+	      utils.isFile(data) ||
+	      utils.isBlob(data)
+	    ) {
+	      return data;
+	    }
+	    if (utils.isArrayBufferView(data)) {
+	      return data.buffer;
+	    }
+	    if (utils.isURLSearchParams(data)) {
+	      setContentTypeIfUnset(headers, 'application/x-www-form-urlencoded;charset=utf-8');
+	      return data.toString();
+	    }
+	    if (utils.isObject(data)) {
+	      setContentTypeIfUnset(headers, 'application/json;charset=utf-8');
+	      return JSON.stringify(data);
+	    }
+	    return data;
+	  }],
+	
+	  transformResponse: [function transformResponse(data) {
+	    /*eslint no-param-reassign:0*/
+	    if (typeof data === 'string') {
+	      try {
+	        data = JSON.parse(data);
+	      } catch (e) { /* Ignore */ }
+	    }
+	    return data;
+	  }],
+	
+	  timeout: 0,
+	
+	  xsrfCookieName: 'XSRF-TOKEN',
+	  xsrfHeaderName: 'X-XSRF-TOKEN',
+	
+	  maxContentLength: -1,
+	
+	  validateStatus: function validateStatus(status) {
+	    return status >= 200 && status < 300;
+	  }
+	};
+	
+	defaults.headers = {
+	  common: {
+	    'Accept': 'application/json, text/plain, */*'
+	  }
+	};
+	
+	utils.forEach(['delete', 'get', 'head'], function forEachMethodNoData(method) {
+	  defaults.headers[method] = {};
+	});
+	
+	utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
+	  defaults.headers[method] = utils.merge(DEFAULT_CONTENT_TYPE);
+	});
+	
+	module.exports = defaults;
+
+
+/***/ }),
+/* 7 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var utils = __webpack_require__(2);
+	
+	module.exports = function normalizeHeaderName(headers, normalizedName) {
+	  utils.forEach(headers, function processHeader(value, name) {
+	    if (name !== normalizedName && name.toUpperCase() === normalizedName.toUpperCase()) {
+	      headers[normalizedName] = value;
+	      delete headers[name];
+	    }
+	  });
+	};
+
+
+/***/ }),
+/* 8 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var utils = __webpack_require__(2);
+	var settle = __webpack_require__(9);
+	var buildURL = __webpack_require__(12);
+	var parseHeaders = __webpack_require__(13);
+	var isURLSameOrigin = __webpack_require__(14);
+	var createError = __webpack_require__(10);
+	var btoa = (typeof window !== 'undefined' && window.btoa && window.btoa.bind(window)) || __webpack_require__(15);
+	
+	module.exports = function xhrAdapter(config) {
+	  return new Promise(function dispatchXhrRequest(resolve, reject) {
+	    var requestData = config.data;
+	    var requestHeaders = config.headers;
+	
+	    if (utils.isFormData(requestData)) {
+	      delete requestHeaders['Content-Type']; // Let the browser set it
+	    }
+	
+	    var request = new XMLHttpRequest();
+	    var loadEvent = 'onreadystatechange';
+	    var xDomain = false;
+	
+	    // For IE 8/9 CORS support
+	    // Only supports POST and GET calls and doesn't returns the response headers.
+	    // DON'T do this for testing b/c XMLHttpRequest is mocked, not XDomainRequest.
+	    if (("production") !== 'test' &&
+	        typeof window !== 'undefined' &&
+	        window.XDomainRequest && !('withCredentials' in request) &&
+	        !isURLSameOrigin(config.url)) {
+	      request = new window.XDomainRequest();
+	      loadEvent = 'onload';
+	      xDomain = true;
+	      request.onprogress = function handleProgress() {};
+	      request.ontimeout = function handleTimeout() {};
+	    }
+	
+	    // HTTP basic authentication
+	    if (config.auth) {
+	      var username = config.auth.username || '';
+	      var password = config.auth.password || '';
+	      requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password);
+	    }
+	
+	    request.open(config.method.toUpperCase(), buildURL(config.url, config.params, config.paramsSerializer), true);
+	
+	    // Set the request timeout in MS
+	    request.timeout = config.timeout;
+	
+	    // Listen for ready state
+	    request[loadEvent] = function handleLoad() {
+	      if (!request || (request.readyState !== 4 && !xDomain)) {
+	        return;
+	      }
+	
+	      // The request errored out and we didn't get a response, this will be
+	      // handled by onerror instead
+	      // With one exception: request that using file: protocol, most browsers
+	      // will return status as 0 even though it's a successful request
+	      if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {
+	        return;
+	      }
+	
+	      // Prepare the response
+	      var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null;
+	      var responseData = !config.responseType || config.responseType === 'text' ? request.responseText : request.response;
+	      var response = {
+	        data: responseData,
+	        // IE sends 1223 instead of 204 (https://github.com/axios/axios/issues/201)
+	        status: request.status === 1223 ? 204 : request.status,
+	        statusText: request.status === 1223 ? 'No Content' : request.statusText,
+	        headers: responseHeaders,
+	        config: config,
+	        request: request
+	      };
+	
+	      settle(resolve, reject, response);
+	
+	      // Clean up request
+	      request = null;
+	    };
+	
+	    // Handle low level network errors
+	    request.onerror = function handleError() {
+	      // Real errors are hidden from us by the browser
+	      // onerror should only fire if it's a network error
+	      reject(createError('Network Error', config, null, request));
+	
+	      // Clean up request
+	      request = null;
+	    };
+	
+	    // Handle timeout
+	    request.ontimeout = function handleTimeout() {
+	      reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED',
+	        request));
+	
+	      // Clean up request
+	      request = null;
+	    };
+	
+	    // Add xsrf header
+	    // This is only done if running in a standard browser environment.
+	    // Specifically not if we're in a web worker, or react-native.
+	    if (utils.isStandardBrowserEnv()) {
+	      var cookies = __webpack_require__(16);
+	
+	      // Add xsrf header
+	      var xsrfValue = (config.withCredentials || isURLSameOrigin(config.url)) && config.xsrfCookieName ?
+	          cookies.read(config.xsrfCookieName) :
+	          undefined;
+	
+	      if (xsrfValue) {
+	        requestHeaders[config.xsrfHeaderName] = xsrfValue;
+	      }
+	    }
+	
+	    // Add headers to the request
+	    if ('setRequestHeader' in request) {
+	      utils.forEach(requestHeaders, function setRequestHeader(val, key) {
+	        if (typeof requestData === 'undefined' && key.toLowerCase() === 'content-type') {
+	          // Remove Content-Type if data is undefined
+	          delete requestHeaders[key];
+	        } else {
+	          // Otherwise add header to the request
+	          request.setRequestHeader(key, val);
+	        }
+	      });
+	    }
+	
+	    // Add withCredentials to request if needed
+	    if (config.withCredentials) {
+	      request.withCredentials = true;
+	    }
+	
+	    // Add responseType to request if needed
+	    if (config.responseType) {
+	      try {
+	        request.responseType = config.responseType;
+	      } catch (e) {
+	        // Expected DOMException thrown by browsers not compatible XMLHttpRequest Level 2.
+	        // But, this can be suppressed for 'json' type as it can be parsed by default 'transformResponse' function.
+	        if (config.responseType !== 'json') {
+	          throw e;
+	        }
+	      }
+	    }
+	
+	    // Handle progress if needed
+	    if (typeof config.onDownloadProgress === 'function') {
+	      request.addEventListener('progress', config.onDownloadProgress);
+	    }
+	
+	    // Not all browsers support upload events
+	    if (typeof config.onUploadProgress === 'function' && request.upload) {
+	      request.upload.addEventListener('progress', config.onUploadProgress);
+	    }
+	
+	    if (config.cancelToken) {
+	      // Handle cancellation
+	      config.cancelToken.promise.then(function onCanceled(cancel) {
+	        if (!request) {
+	          return;
+	        }
+	
+	        request.abort();
+	        reject(cancel);
+	        // Clean up request
+	        request = null;
+	      });
+	    }
+	
+	    if (requestData === undefined) {
+	      requestData = null;
+	    }
+	
+	    // Send the request
+	    request.send(requestData);
+	  });
+	};
+
+
+/***/ }),
+/* 9 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var createError = __webpack_require__(10);
+	
+	/**
+	 * Resolve or reject a Promise based on response status.
+	 *
+	 * @param {Function} resolve A function that resolves the promise.
+	 * @param {Function} reject A function that rejects the promise.
+	 * @param {object} response The response.
+	 */
+	module.exports = function settle(resolve, reject, response) {
+	  var validateStatus = response.config.validateStatus;
+	  // Note: status is not exposed by XDomainRequest
+	  if (!response.status || !validateStatus || validateStatus(response.status)) {
+	    resolve(response);
+	  } else {
+	    reject(createError(
+	      'Request failed with status code ' + response.status,
+	      response.config,
+	      null,
+	      response.request,
+	      response
+	    ));
+	  }
+	};
+
+
+/***/ }),
+/* 10 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var enhanceError = __webpack_require__(11);
+	
+	/**
+	 * Create an Error with the specified message, config, error code, request and response.
+	 *
+	 * @param {string} message The error message.
+	 * @param {Object} config The config.
+	 * @param {string} [code] The error code (for example, 'ECONNABORTED').
+	 * @param {Object} [request] The request.
+	 * @param {Object} [response] The response.
+	 * @returns {Error} The created error.
+	 */
+	module.exports = function createError(message, config, code, request, response) {
+	  var error = new Error(message);
+	  return enhanceError(error, config, code, request, response);
+	};
+
+
+/***/ }),
+/* 11 */
+/***/ (function(module, exports) {
+
+	'use strict';
+	
+	/**
+	 * Update an Error with the specified config, error code, and response.
+	 *
+	 * @param {Error} error The error to update.
+	 * @param {Object} config The config.
+	 * @param {string} [code] The error code (for example, 'ECONNABORTED').
+	 * @param {Object} [request] The request.
+	 * @param {Object} [response] The response.
+	 * @returns {Error} The error.
+	 */
+	module.exports = function enhanceError(error, config, code, request, response) {
+	  error.config = config;
+	  if (code) {
+	    error.code = code;
+	  }
+	  error.request = request;
+	  error.response = response;
+	  return error;
+	};
+
+
+/***/ }),
+/* 12 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var utils = __webpack_require__(2);
+	
+	function encode(val) {
+	  return encodeURIComponent(val).
+	    replace(/%40/gi, '@').
+	    replace(/%3A/gi, ':').
+	    replace(/%24/g, '$').
+	    replace(/%2C/gi, ',').
+	    replace(/%20/g, '+').
+	    replace(/%5B/gi, '[').
+	    replace(/%5D/gi, ']');
+	}
+	
+	/**
+	 * Build a URL by appending params to the end
+	 *
+	 * @param {string} url The base of the url (e.g., http://www.google.com)
+	 * @param {object} [params] The params to be appended
+	 * @returns {string} The formatted url
+	 */
+	module.exports = function buildURL(url, params, paramsSerializer) {
+	  /*eslint no-param-reassign:0*/
+	  if (!params) {
+	    return url;
+	  }
+	
+	  var serializedParams;
+	  if (paramsSerializer) {
+	    serializedParams = paramsSerializer(params);
+	  } else if (utils.isURLSearchParams(params)) {
+	    serializedParams = params.toString();
+	  } else {
+	    var parts = [];
+	
+	    utils.forEach(params, function serialize(val, key) {
+	      if (val === null || typeof val === 'undefined') {
+	        return;
+	      }
+	
+	      if (utils.isArray(val)) {
+	        key = key + '[]';
+	      }
+	
+	      if (!utils.isArray(val)) {
+	        val = [val];
+	      }
+	
+	      utils.forEach(val, function parseValue(v) {
+	        if (utils.isDate(v)) {
+	          v = v.toISOString();
+	        } else if (utils.isObject(v)) {
+	          v = JSON.stringify(v);
+	        }
+	        parts.push(encode(key) + '=' + encode(v));
+	      });
+	    });
+	
+	    serializedParams = parts.join('&');
+	  }
+	
+	  if (serializedParams) {
+	    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;
+	  }
+	
+	  return url;
+	};
+
+
+/***/ }),
+/* 13 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var utils = __webpack_require__(2);
+	
+	// Headers whose duplicates are ignored by node
+	// c.f. https://nodejs.org/api/http.html#http_message_headers
+	var ignoreDuplicateOf = [
+	  'age', 'authorization', 'content-length', 'content-type', 'etag',
+	  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',
+	  'last-modified', 'location', 'max-forwards', 'proxy-authorization',
+	  'referer', 'retry-after', 'user-agent'
+	];
+	
+	/**
+	 * Parse headers into an object
+	 *
+	 * ```
+	 * Date: Wed, 27 Aug 2014 08:58:49 GMT
+	 * Content-Type: application/json
+	 * Connection: keep-alive
+	 * Transfer-Encoding: chunked
+	 * ```
+	 *
+	 * @param {String} headers Headers needing to be parsed
+	 * @returns {Object} Headers parsed into an object
+	 */
+	module.exports = function parseHeaders(headers) {
+	  var parsed = {};
+	  var key;
+	  var val;
+	  var i;
+	
+	  if (!headers) { return parsed; }
+	
+	  utils.forEach(headers.split('\n'), function parser(line) {
+	    i = line.indexOf(':');
+	    key = utils.trim(line.substr(0, i)).toLowerCase();
+	    val = utils.trim(line.substr(i + 1));
+	
+	    if (key) {
+	      if (parsed[key] && ignoreDuplicateOf.indexOf(key) >= 0) {
+	        return;
+	      }
+	      if (key === 'set-cookie') {
+	        parsed[key] = (parsed[key] ? parsed[key] : []).concat([val]);
+	      } else {
+	        parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
+	      }
+	    }
+	  });
+	
+	  return parsed;
+	};
+
+
+/***/ }),
+/* 14 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var utils = __webpack_require__(2);
+	
+	module.exports = (
+	  utils.isStandardBrowserEnv() ?
+	
+	  // Standard browser envs have full support of the APIs needed to test
+	  // whether the request URL is of the same origin as current location.
+	  (function standardBrowserEnv() {
+	    var msie = /(msie|trident)/i.test(navigator.userAgent);
+	    var urlParsingNode = document.createElement('a');
+	    var originURL;
+	
+	    /**
+	    * Parse a URL to discover it's components
+	    *
+	    * @param {String} url The URL to be parsed
+	    * @returns {Object}
+	    */
+	    function resolveURL(url) {
+	      var href = url;
+	
+	      if (msie) {
+	        // IE needs attribute set twice to normalize properties
+	        urlParsingNode.setAttribute('href', href);
+	        href = urlParsingNode.href;
+	      }
+	
+	      urlParsingNode.setAttribute('href', href);
+	
+	      // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils
+	      return {
+	        href: urlParsingNode.href,
+	        protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',
+	        host: urlParsingNode.host,
+	        search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '',
+	        hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',
+	        hostname: urlParsingNode.hostname,
+	        port: urlParsingNode.port,
+	        pathname: (urlParsingNode.pathname.charAt(0) === '/') ?
+	                  urlParsingNode.pathname :
+	                  '/' + urlParsingNode.pathname
+	      };
+	    }
+	
+	    originURL = resolveURL(window.location.href);
+	
+	    /**
+	    * Determine if a URL shares the same origin as the current location
+	    *
+	    * @param {String} requestURL The URL to test
+	    * @returns {boolean} True if URL shares the same origin, otherwise false
+	    */
+	    return function isURLSameOrigin(requestURL) {
+	      var parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL;
+	      return (parsed.protocol === originURL.protocol &&
+	            parsed.host === originURL.host);
+	    };
+	  })() :
+	
+	  // Non standard browser envs (web workers, react-native) lack needed support.
+	  (function nonStandardBrowserEnv() {
+	    return function isURLSameOrigin() {
+	      return true;
+	    };
+	  })()
+	);
+
+
+/***/ }),
+/* 15 */
+/***/ (function(module, exports) {
+
+	'use strict';
+	
+	// btoa polyfill for IE<10 courtesy https://github.com/davidchambers/Base64.js
+	
+	var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
+	
+	function E() {
+	  this.message = 'String contains an invalid character';
+	}
+	E.prototype = new Error;
+	E.prototype.code = 5;
+	E.prototype.name = 'InvalidCharacterError';
+	
+	function btoa(input) {
+	  var str = String(input);
+	  var output = '';
+	  for (
+	    // initialize result and counter
+	    var block, charCode, idx = 0, map = chars;
+	    // if the next str index does not exist:
+	    //   change the mapping table to "="
+	    //   check if d has no fractional digits
+	    str.charAt(idx | 0) || (map = '=', idx % 1);
+	    // "8 - idx % 1 * 8" generates the sequence 2, 4, 6, 8
+	    output += map.charAt(63 & block >> 8 - idx % 1 * 8)
+	  ) {
+	    charCode = str.charCodeAt(idx += 3 / 4);
+	    if (charCode > 0xFF) {
+	      throw new E();
+	    }
+	    block = block << 8 | charCode;
+	  }
+	  return output;
+	}
+	
+	module.exports = btoa;
+
+
+/***/ }),
+/* 16 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var utils = __webpack_require__(2);
+	
+	module.exports = (
+	  utils.isStandardBrowserEnv() ?
+	
+	  // Standard browser envs support document.cookie
+	  (function standardBrowserEnv() {
+	    return {
+	      write: function write(name, value, expires, path, domain, secure) {
+	        var cookie = [];
+	        cookie.push(name + '=' + encodeURIComponent(value));
+	
+	        if (utils.isNumber(expires)) {
+	          cookie.push('expires=' + new Date(expires).toGMTString());
+	        }
+	
+	        if (utils.isString(path)) {
+	          cookie.push('path=' + path);
+	        }
+	
+	        if (utils.isString(domain)) {
+	          cookie.push('domain=' + domain);
+	        }
+	
+	        if (secure === true) {
+	          cookie.push('secure');
+	        }
+	
+	        document.cookie = cookie.join('; ');
+	      },
+	
+	      read: function read(name) {
+	        var match = document.cookie.match(new RegExp('(^|;\\s*)(' + name + ')=([^;]*)'));
+	        return (match ? decodeURIComponent(match[3]) : null);
+	      },
+	
+	      remove: function remove(name) {
+	        this.write(name, '', Date.now() - 86400000);
+	      }
+	    };
+	  })() :
+	
+	  // Non standard browser env (web workers, react-native) lack needed support.
+	  (function nonStandardBrowserEnv() {
+	    return {
+	      write: function write() {},
+	      read: function read() { return null; },
+	      remove: function remove() {}
+	    };
+	  })()
+	);
+
+
+/***/ }),
+/* 17 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var utils = __webpack_require__(2);
+	
+	function InterceptorManager() {
+	  this.handlers = [];
+	}
+	
+	/**
+	 * Add a new interceptor to the stack
+	 *
+	 * @param {Function} fulfilled The function to handle `then` for a `Promise`
+	 * @param {Function} rejected The function to handle `reject` for a `Promise`
+	 *
+	 * @return {Number} An ID used to remove interceptor later
+	 */
+	InterceptorManager.prototype.use = function use(fulfilled, rejected) {
+	  this.handlers.push({
+	    fulfilled: fulfilled,
+	    rejected: rejected
+	  });
+	  return this.handlers.length - 1;
+	};
+	
+	/**
+	 * Remove an interceptor from the stack
+	 *
+	 * @param {Number} id The ID that was returned by `use`
+	 */
+	InterceptorManager.prototype.eject = function eject(id) {
+	  if (this.handlers[id]) {
+	    this.handlers[id] = null;
+	  }
+	};
+	
+	/**
+	 * Iterate over all the registered interceptors
+	 *
+	 * This method is particularly useful for skipping over any
+	 * interceptors that may have become `null` calling `eject`.
+	 *
+	 * @param {Function} fn The function to call for each interceptor
+	 */
+	InterceptorManager.prototype.forEach = function forEach(fn) {
+	  utils.forEach(this.handlers, function forEachHandler(h) {
+	    if (h !== null) {
+	      fn(h);
+	    }
+	  });
+	};
+	
+	module.exports = InterceptorManager;
+
+
+/***/ }),
+/* 18 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var utils = __webpack_require__(2);
+	var transformData = __webpack_require__(19);
+	var isCancel = __webpack_require__(20);
+	var defaults = __webpack_require__(6);
+	var isAbsoluteURL = __webpack_require__(21);
+	var combineURLs = __webpack_require__(22);
+	
+	/**
+	 * Throws a `Cancel` if cancellation has been requested.
+	 */
+	function throwIfCancellationRequested(config) {
+	  if (config.cancelToken) {
+	    config.cancelToken.throwIfRequested();
+	  }
+	}
+	
+	/**
+	 * Dispatch a request to the server using the configured adapter.
+	 *
+	 * @param {object} config The config that is to be used for the request
+	 * @returns {Promise} The Promise to be fulfilled
+	 */
+	module.exports = function dispatchRequest(config) {
+	  throwIfCancellationRequested(config);
+	
+	  // Support baseURL config
+	  if (config.baseURL && !isAbsoluteURL(config.url)) {
+	    config.url = combineURLs(config.baseURL, config.url);
+	  }
+	
+	  // Ensure headers exist
+	  config.headers = config.headers || {};
+	
+	  // Transform request data
+	  config.data = transformData(
+	    config.data,
+	    config.headers,
+	    config.transformRequest
+	  );
+	
+	  // Flatten headers
+	  config.headers = utils.merge(
+	    config.headers.common || {},
+	    config.headers[config.method] || {},
+	    config.headers || {}
+	  );
+	
+	  utils.forEach(
+	    ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],
+	    function cleanHeaderConfig(method) {
+	      delete config.headers[method];
+	    }
+	  );
+	
+	  var adapter = config.adapter || defaults.adapter;
+	
+	  return adapter(config).then(function onAdapterResolution(response) {
+	    throwIfCancellationRequested(config);
+	
+	    // Transform response data
+	    response.data = transformData(
+	      response.data,
+	      response.headers,
+	      config.transformResponse
+	    );
+	
+	    return response;
+	  }, function onAdapterRejection(reason) {
+	    if (!isCancel(reason)) {
+	      throwIfCancellationRequested(config);
+	
+	      // Transform response data
+	      if (reason && reason.response) {
+	        reason.response.data = transformData(
+	          reason.response.data,
+	          reason.response.headers,
+	          config.transformResponse
+	        );
+	      }
+	    }
+	
+	    return Promise.reject(reason);
+	  });
+	};
+
+
+/***/ }),
+/* 19 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var utils = __webpack_require__(2);
+	
+	/**
+	 * Transform the data for a request or a response
+	 *
+	 * @param {Object|String} data The data to be transformed
+	 * @param {Array} headers The headers for the request or response
+	 * @param {Array|Function} fns A single function or Array of functions
+	 * @returns {*} The resulting transformed data
+	 */
+	module.exports = function transformData(data, headers, fns) {
+	  /*eslint no-param-reassign:0*/
+	  utils.forEach(fns, function transform(fn) {
+	    data = fn(data, headers);
+	  });
+	
+	  return data;
+	};
+
+
+/***/ }),
+/* 20 */
+/***/ (function(module, exports) {
+
+	'use strict';
+	
+	module.exports = function isCancel(value) {
+	  return !!(value && value.__CANCEL__);
+	};
+
+
+/***/ }),
+/* 21 */
+/***/ (function(module, exports) {
+
+	'use strict';
+	
+	/**
+	 * Determines whether the specified URL is absolute
+	 *
+	 * @param {string} url The URL to test
+	 * @returns {boolean} True if the specified URL is absolute, otherwise false
+	 */
+	module.exports = function isAbsoluteURL(url) {
+	  // A URL is considered absolute if it begins with "<scheme>://" or "//" (protocol-relative URL).
+	  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed
+	  // by any combination of letters, digits, plus, period, or hyphen.
+	  return /^([a-z][a-z\d\+\-\.]*:)?\/\//i.test(url);
+	};
+
+
+/***/ }),
+/* 22 */
+/***/ (function(module, exports) {
+
+	'use strict';
+	
+	/**
+	 * Creates a new URL by combining the specified URLs
+	 *
+	 * @param {string} baseURL The base URL
+	 * @param {string} relativeURL The relative URL
+	 * @returns {string} The combined URL
+	 */
+	module.exports = function combineURLs(baseURL, relativeURL) {
+	  return relativeURL
+	    ? baseURL.replace(/\/+$/, '') + '/' + relativeURL.replace(/^\/+/, '')
+	    : baseURL;
+	};
+
+
+/***/ }),
+/* 23 */
+/***/ (function(module, exports) {
+
+	'use strict';
+	
+	/**
+	 * A `Cancel` is an object that is thrown when an operation is canceled.
+	 *
+	 * @class
+	 * @param {string=} message The message.
+	 */
+	function Cancel(message) {
+	  this.message = message;
+	}
+	
+	Cancel.prototype.toString = function toString() {
+	  return 'Cancel' + (this.message ? ': ' + this.message : '');
+	};
+	
+	Cancel.prototype.__CANCEL__ = true;
+	
+	module.exports = Cancel;
+
+
+/***/ }),
+/* 24 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var Cancel = __webpack_require__(23);
+	
+	/**
+	 * A `CancelToken` is an object that can be used to request cancellation of an operation.
+	 *
+	 * @class
+	 * @param {Function} executor The executor function.
+	 */
+	function CancelToken(executor) {
+	  if (typeof executor !== 'function') {
+	    throw new TypeError('executor must be a function.');
+	  }
+	
+	  var resolvePromise;
+	  this.promise = new Promise(function promiseExecutor(resolve) {
+	    resolvePromise = resolve;
+	  });
+	
+	  var token = this;
+	  executor(function cancel(message) {
+	    if (token.reason) {
+	      // Cancellation has already been requested
+	      return;
+	    }
+	
+	    token.reason = new Cancel(message);
+	    resolvePromise(token.reason);
+	  });
+	}
+	
+	/**
+	 * Throws a `Cancel` if cancellation has been requested.
+	 */
+	CancelToken.prototype.throwIfRequested = function throwIfRequested() {
+	  if (this.reason) {
+	    throw this.reason;
+	  }
+	};
+	
+	/**
+	 * Returns an object that contains a new `CancelToken` and a function that, when called,
+	 * cancels the `CancelToken`.
+	 */
+	CancelToken.source = function source() {
+	  var cancel;
+	  var token = new CancelToken(function executor(c) {
+	    cancel = c;
+	  });
+	  return {
+	    token: token,
+	    cancel: cancel
+	  };
+	};
+	
+	module.exports = CancelToken;
+
+
+/***/ }),
+/* 25 */
+/***/ (function(module, exports) {
+
+	'use strict';
+	
+	/**
+	 * Syntactic sugar for invoking a function and expanding an array for arguments.
+	 *
+	 * Common use case would be to use `Function.prototype.apply`.
+	 *
+	 *  ```js
+	 *  function f(x, y, z) {}
+	 *  var args = [1, 2, 3];
+	 *  f.apply(null, args);
+	 *  ```
+	 *
+	 * With `spread` this example can be re-written.
+	 *
+	 *  ```js
+	 *  spread(function(x, y, z) {})([1, 2, 3]);
+	 *  ```
+	 *
+	 * @param {Function} callback
+	 * @returns {Function}
+	 */
+	module.exports = function spread(callback) {
+	  return function wrap(arr) {
+	    return callback.apply(null, arr);
+	  };
+	};
+
+
+/***/ })
+/******/ ])
+});
+;
+//# sourceMappingURL=axios.map
\ No newline at end of file
diff --git a/helloworld/node_modules/axios/dist/axios.map b/helloworld/node_modules/axios/dist/axios.map
new file mode 100755
index 0000000..991d6f4
--- /dev/null
+++ b/helloworld/node_modules/axios/dist/axios.map
@@ -0,0 +1 @@
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The value to test\n * @returns {boolean} True if value is a File, otherwise false\n */\nfunction isFile(val) {\n  return toString.call(val) === '[object File]';\n}\n\n/**\n * Determine if a value is a Blob\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a Blob, otherwise false\n */\nfunction isBlob(val) {\n  return toString.call(val) === '[object Blob]';\n}\n\n/**\n * Determine if a value is a Function\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a Function, otherwise false\n */\nfunction isFunction(val) {\n  return toString.call(val) === '[object Function]';\n}\n\n/**\n * Determine if a value is a Stream\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a Stream, otherwise false\n */\nfunction isStream(val) {\n  return isObject(val) && isFunction(val.pipe);\n}\n\n/**\n * Determine if a value is a URLSearchParams object\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a URLSearchParams object, otherwise false\n */\nfunction isURLSearchParams(val) {\n  return typeof URLSearchParams !== 'undefined' && val instanceof URLSearchParams;\n}\n\n/**\n * Trim excess whitespace off the beginning and end of a string\n *\n * @param {String} str The String to trim\n * @returns {String} The String freed of excess whitespace\n */\nfunction trim(str) {\n  return str.replace(/^\\s*/, '').replace(/\\s*$/, '');\n}\n\n/**\n * Determine if we're running in a standard browser environment\n *\n * This allows axios to run in a web worker, and react-native.\n * Both environments support XMLHttpRequest, but not fully standard globals.\n *\n * web workers:\n *  typeof window -> undefined\n *  typeof document -> undefined\n *\n * react-native:\n *  navigator.product -> 'ReactNative'\n */\nfunction isStandardBrowserEnv() {\n  if (typeof navigator !== 'undefined' && navigator.product === 'ReactNative') {\n    return false;\n  }\n  return (\n    typeof window !== 'undefined' &&\n    typeof document !== 'undefined'\n  );\n}\n\n/**\n * Iterate over an Array or an Object invoking a function for each item.\n *\n * If `obj` is an Array callback will be called passing\n * the value, index, and complete array for each item.\n *\n * If 'obj' is an Object callback will be called passing\n * the value, key, and complete object for each property.\n *\n * @param {Object|Array} obj The object to iterate\n * @param {Function} fn The callback to invoke for each item\n */\nfunction forEach(obj, fn) {\n  // Don't bother if no value provided\n  if (obj === null || typeof obj === 'undefined') {\n    return;\n  }\n\n  // Force an array if not already something iterable\n  if (typeof obj !== 'object') {\n    /*eslint no-param-reassign:0*/\n    obj = [obj];\n  }\n\n  if (isArray(obj)) {\n    // Iterate over array values\n    for (var i = 0, l = obj.length; i < l; i++) {\n      fn.call(null, obj[i], i, obj);\n    }\n  } else {\n    // Iterate over object keys\n    for (var key in obj) {\n      if (Object.prototype.hasOwnProperty.call(obj, key)) {\n        fn.call(null, obj[key], key, obj);\n      }\n    }\n  }\n}\n\n/**\n * Accepts varargs expecting each argument to be an object, then\n * immutably merges the properties of each object and returns result.\n *\n * When multiple objects contain the same key the later object in\n * the arguments list will take precedence.\n *\n * Example:\n *\n * ```js\n * var result = merge({foo: 123}, {foo: 456});\n * console.log(result.foo); // outputs 456\n * ```\n *\n * @param {Object} obj1 Object to merge\n * @returns {Object} Result of all merge properties\n */\nfunction merge(/* obj1, obj2, obj3, ... */) {\n  var result = {};\n  function assignValue(val, key) {\n    if (typeof result[key] === 'object' && typeof val === 'object') {\n      result[key] = merge(result[key], val);\n    } else {\n      result[key] = val;\n    }\n  }\n\n  for (var i = 0, l = arguments.length; i < l; i++) {\n    forEach(arguments[i], assignValue);\n  }\n  return result;\n}\n\n/**\n * Extends object a by mutably adding to it the properties of object b.\n *\n * @param {Object} a The object to be extended\n * @param {Object} b The object to copy properties from\n * @param {Object} thisArg The object to bind function to\n * @return {Object} The resulting value of object a\n */\nfunction extend(a, b, thisArg) {\n  forEach(b, function assignValue(val, key) {\n    if (thisArg && typeof val === 'function') {\n      a[key] = bind(val, thisArg);\n    } else {\n      a[key] = val;\n    }\n  });\n  return a;\n}\n\nmodule.exports = {\n  isArray: isArray,\n  isArrayBuffer: isArrayBuffer,\n  isBuffer: isBuffer,\n  isFormData: isFormData,\n  isArrayBufferView: isArrayBufferView,\n  isString: isString,\n  isNumber: isNumber,\n  isObject: isObject,\n  isUndefined: isUndefined,\n  isDate: isDate,\n  isFile: isFile,\n  isBlob: isBlob,\n  isFunction: isFunction,\n  isStream: isStream,\n  isURLSearchParams: isURLSearchParams,\n  isStandardBrowserEnv: isStandardBrowserEnv,\n  forEach: forEach,\n  merge: merge,\n  extend: extend,\n  trim: trim\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/utils.js\n// module id = 2\n// module chunks = 0","'use strict';\n\nmodule.exports = function bind(fn, thisArg) {\n  return function wrap() {\n    var args = new Array(arguments.length);\n    for (var i = 0; i < args.length; i++) {\n      args[i] = arguments[i];\n    }\n    return fn.apply(thisArg, args);\n  };\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/bind.js\n// module id = 3\n// module chunks = 0","/*!\n * Determine if an object is a Buffer\n *\n * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>\n * @license  MIT\n */\n\n// The _isBuffer check is for Safari 5-7 support, because it's missing\n// Object.prototype.constructor. Remove this eventually\nmodule.exports = function (obj) {\n  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)\n}\n\nfunction isBuffer (obj) {\n  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)\n}\n\n// For Node v0.10 support. Remove this eventually.\nfunction isSlowBuffer (obj) {\n  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/is-buffer/index.js\n// module id = 4\n// module chunks = 0","'use strict';\n\nvar defaults = require('./../defaults');\nvar utils = require('./../utils');\nvar InterceptorManager = require('./InterceptorManager');\nvar dispatchRequest = require('./dispatchRequest');\n\n/**\n * Create a new instance of Axios\n *\n * @param {Object} instanceConfig The default config for the instance\n */\nfunction Axios(instanceConfig) {\n  this.defaults = instanceConfig;\n  this.interceptors = {\n    request: new InterceptorManager(),\n    response: new InterceptorManager()\n  };\n}\n\n/**\n * Dispatch a request\n *\n * @param {Object} config The config specific for this request (merged with this.defaults)\n */\nAxios.prototype.request = function request(config) {\n  /*eslint no-param-reassign:0*/\n  // Allow for axios('example/url'[, config]) a la fetch API\n  if (typeof config === 'string') {\n    config = utils.merge({\n      url: arguments[0]\n    }, arguments[1]);\n  }\n\n  config = utils.merge(defaults, this.defaults, { method: 'get' }, config);\n  config.method = config.method.toLowerCase();\n\n  // Hook up interceptors middleware\n  var chain = [dispatchRequest, undefined];\n  var promise = Promise.resolve(config);\n\n  this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {\n    chain.unshift(interceptor.fulfilled, interceptor.rejected);\n  });\n\n  this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {\n    chain.push(interceptor.fulfilled, interceptor.rejected);\n  });\n\n  while (chain.length) {\n    promise = promise.then(chain.shift(), chain.shift());\n  }\n\n  return promise;\n};\n\n// Provide aliases for supported request methods\nutils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {\n  /*eslint func-names:0*/\n  Axios.prototype[method] = function(url, config) {\n    return this.request(utils.merge(config || {}, {\n      method: method,\n      url: url\n    }));\n  };\n});\n\nutils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {\n  /*eslint func-names:0*/\n  Axios.prototype[method] = function(url, data, config) {\n    return this.request(utils.merge(config || {}, {\n      method: method,\n      url: url,\n      data: data\n    }));\n  };\n});\n\nmodule.exports = Axios;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/core/Axios.js\n// module id = 5\n// module chunks = 0","'use strict';\n\nvar utils = require('./utils');\nvar normalizeHeaderName = require('./helpers/normalizeHeaderName');\n\nvar DEFAULT_CONTENT_TYPE = {\n  'Content-Type': 'application/x-www-form-urlencoded'\n};\n\nfunction setContentTypeIfUnset(headers, value) {\n  if (!utils.isUndefined(headers) && utils.isUndefined(headers['Content-Type'])) {\n    headers['Content-Type'] = value;\n  }\n}\n\nfunction getDefaultAdapter() {\n  var adapter;\n  if (typeof XMLHttpRequest !== 'undefined') {\n    // For browsers use XHR adapter\n    adapter = require('./adapters/xhr');\n  } else if (typeof process !== 'undefined') {\n    // For node use HTTP adapter\n    adapter = require('./adapters/http');\n  }\n  return adapter;\n}\n\nvar defaults = {\n  adapter: getDefaultAdapter(),\n\n  transformRequest: [function transformRequest(data, headers) {\n    normalizeHeaderName(headers, 'Content-Type');\n    if (utils.isFormData(data) ||\n      utils.isArrayBuffer(data) ||\n      utils.isBuffer(data) ||\n      utils.isStream(data) ||\n      utils.isFile(data) ||\n      utils.isBlob(data)\n    ) {\n      return data;\n    }\n    if (utils.isArrayBufferView(data)) {\n      return data.buffer;\n    }\n    if (utils.isURLSearchParams(data)) {\n      setContentTypeIfUnset(headers, 'application/x-www-form-urlencoded;charset=utf-8');\n      return data.toString();\n    }\n    if (utils.isObject(data)) {\n      setContentTypeIfUnset(headers, 'application/json;charset=utf-8');\n      return JSON.stringify(data);\n    }\n    return data;\n  }],\n\n  transformResponse: [function transformResponse(data) {\n    /*eslint no-param-reassign:0*/\n    if (typeof data === 'string') {\n      try {\n        data = JSON.parse(data);\n      } catch (e) { /* Ignore */ }\n    }\n    return data;\n  }],\n\n  timeout: 0,\n\n  xsrfCookieName: 'XSRF-TOKEN',\n  xsrfHeaderName: 'X-XSRF-TOKEN',\n\n  maxContentLength: -1,\n\n  validateStatus: function validateStatus(status) {\n    return status >= 200 && status < 300;\n  }\n};\n\ndefaults.headers = {\n  common: {\n    'Accept': 'application/json, text/plain, */*'\n  }\n};\n\nutils.forEach(['delete', 'get', 'head'], function forEachMethodNoData(method) {\n  defaults.headers[method] = {};\n});\n\nutils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {\n  defaults.headers[method] = utils.merge(DEFAULT_CONTENT_TYPE);\n});\n\nmodule.exports = defaults;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/defaults.js\n// module id = 6\n// module chunks = 0","'use strict';\n\nvar utils = require('../utils');\n\nmodule.exports = function normalizeHeaderName(headers, normalizedName) {\n  utils.forEach(headers, function processHeader(value, name) {\n    if (name !== normalizedName && name.toUpperCase() === normalizedName.toUpperCase()) {\n      headers[normalizedName] = value;\n      delete headers[name];\n    }\n  });\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/normalizeHeaderName.js\n// module id = 7\n// module chunks = 0","'use strict';\n\nvar utils = require('./../utils');\nvar settle = require('./../core/settle');\nvar buildURL = require('./../helpers/buildURL');\nvar parseHeaders = require('./../helpers/parseHeaders');\nvar isURLSameOrigin = require('./../helpers/isURLSameOrigin');\nvar createError = require('../core/createError');\nvar btoa = (typeof window !== 'undefined' && window.btoa && window.btoa.bind(window)) || require('./../helpers/btoa');\n\nmodule.exports = function xhrAdapter(config) {\n  return new Promise(function dispatchXhrRequest(resolve, reject) {\n    var requestData = config.data;\n    var requestHeaders = config.headers;\n\n    if (utils.isFormData(requestData)) {\n      delete requestHeaders['Content-Type']; // Let the browser set it\n    }\n\n    var request = new XMLHttpRequest();\n    var loadEvent = 'onreadystatechange';\n    var xDomain = false;\n\n    // For IE 8/9 CORS support\n    // Only supports POST and GET calls and doesn't returns the response headers.\n    // DON'T do this for testing b/c XMLHttpRequest is mocked, not XDomainRequest.\n    if (process.env.NODE_ENV !== 'test' &&\n        typeof window !== 'undefined' &&\n        window.XDomainRequest && !('withCredentials' in request) &&\n        !isURLSameOrigin(config.url)) {\n      request = new window.XDomainRequest();\n      loadEvent = 'onload';\n      xDomain = true;\n      request.onprogress = function handleProgress() {};\n      request.ontimeout = function handleTimeout() {};\n    }\n\n    // HTTP basic authentication\n    if (config.auth) {\n      var username = config.auth.username || '';\n      var password = config.auth.password || '';\n      requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password);\n    }\n\n    request.open(config.method.toUpperCase(), buildURL(config.url, config.params, config.paramsSerializer), true);\n\n    // Set the request timeout in MS\n    request.timeout = config.timeout;\n\n    // Listen for ready state\n    request[loadEvent] = function handleLoad() {\n      if (!request || (request.readyState !== 4 && !xDomain)) {\n        return;\n      }\n\n      // The request errored out and we didn't get a response, this will be\n      // handled by onerror instead\n      // With one exception: request that using file: protocol, most browsers\n      // will return status as 0 even though it's a successful request\n      if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {\n        return;\n      }\n\n      // Prepare the response\n      var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null;\n      var responseData = !config.responseType || config.responseType === 'text' ? request.responseText : request.response;\n      var response = {\n        data: responseData,\n        // IE sends 1223 instead of 204 (https://github.com/axios/axios/issues/201)\n        status: request.status === 1223 ? 204 : request.status,\n        statusText: request.status === 1223 ? 'No Content' : request.statusText,\n        headers: responseHeaders,\n        config: config,\n        request: request\n      };\n\n      settle(resolve, reject, response);\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle low level network errors\n    request.onerror = function handleError() {\n      // Real errors are hidden from us by the browser\n      // onerror should only fire if it's a network error\n      reject(createError('Network Error', config, null, request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle timeout\n    request.ontimeout = function handleTimeout() {\n      reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED',\n        request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Add xsrf header\n    // This is only done if running in a standard browser environment.\n    // Specifically not if we're in a web worker, or react-native.\n    if (utils.isStandardBrowserEnv()) {\n      var cookies = require('./../helpers/cookies');\n\n      // Add xsrf header\n      var xsrfValue = (config.withCredentials || isURLSameOrigin(config.url)) && config.xsrfCookieName ?\n          cookies.read(config.xsrfCookieName) :\n          undefined;\n\n      if (xsrfValue) {\n        requestHeaders[config.xsrfHeaderName] = xsrfValue;\n      }\n    }\n\n    // Add headers to the request\n    if ('setRequestHeader' in request) {\n      utils.forEach(requestHeaders, function setRequestHeader(val, key) {\n        if (typeof requestData === 'undefined' && key.toLowerCase() === 'content-type') {\n          // Remove Content-Type if data is undefined\n          delete requestHeaders[key];\n        } else {\n          // Otherwise add header to the request\n          request.setRequestHeader(key, val);\n        }\n      });\n    }\n\n    // Add withCredentials to request if needed\n    if (config.withCredentials) {\n      request.withCredentials = true;\n    }\n\n    // Add responseType to request if needed\n    if (config.responseType) {\n      try {\n        request.responseType = config.responseType;\n      } catch (e) {\n        // Expected DOMException thrown by browsers not compatible XMLHttpRequest Level 2.\n        // But, this can be suppressed for 'json' type as it can be parsed by default 'transformResponse' function.\n        if (config.responseType !== 'json') {\n          throw e;\n        }\n      }\n    }\n\n    // Handle progress if needed\n    if (typeof config.onDownloadProgress === 'function') {\n      request.addEventListener('progress', config.onDownloadProgress);\n    }\n\n    // Not all browsers support upload events\n    if (typeof config.onUploadProgress === 'function' && request.upload) {\n      request.upload.addEventListener('progress', config.onUploadProgress);\n    }\n\n    if (config.cancelToken) {\n      // Handle cancellation\n      config.cancelToken.promise.then(function onCanceled(cancel) {\n        if (!request) {\n          return;\n        }\n\n        request.abort();\n        reject(cancel);\n        // Clean up request\n        request = null;\n      });\n    }\n\n    if (requestData === undefined) {\n      requestData = null;\n    }\n\n    // Send the request\n    request.send(requestData);\n  });\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/adapters/xhr.js\n// module id = 8\n// module chunks = 0","'use strict';\n\nvar createError = require('./createError');\n\n/**\n * Resolve or reject a Promise based on response status.\n *\n * @param {Function} resolve A function that resolves the promise.\n * @param {Function} reject A function that rejects the promise.\n * @param {object} response The response.\n */\nmodule.exports = function settle(resolve, reject, response) {\n  var validateStatus = response.config.validateStatus;\n  // Note: status is not exposed by XDomainRequest\n  if (!response.status || !validateStatus || validateStatus(response.status)) {\n    resolve(response);\n  } else {\n    reject(createError(\n      'Request failed with status code ' + response.status,\n      response.config,\n      null,\n      response.request,\n      response\n    ));\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/core/settle.js\n// module id = 9\n// module chunks = 0","'use strict';\n\nvar enhanceError = require('./enhanceError');\n\n/**\n * Create an Error with the specified message, config, error code, request and response.\n *\n * @param {string} message The error message.\n * @param {Object} config The config.\n * @param {string} [code] The error code (for example, 'ECONNABORTED').\n * @param {Object} [request] The request.\n * @param {Object} [response] The response.\n * @returns {Error} The created error.\n */\nmodule.exports = function createError(message, config, code, request, response) {\n  var error = new Error(message);\n  return enhanceError(error, config, code, request, response);\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/core/createError.js\n// module id = 10\n// module chunks = 0","'use strict';\n\n/**\n * Update an Error with the specified config, error code, and response.\n *\n * @param {Error} error The error to update.\n * @param {Object} config The config.\n * @param {string} [code] The error code (for example, 'ECONNABORTED').\n * @param {Object} [request] The request.\n * @param {Object} [response] The response.\n * @returns {Error} The error.\n */\nmodule.exports = function enhanceError(error, config, code, request, response) {\n  error.config = config;\n  if (code) {\n    error.code = code;\n  }\n  error.request = request;\n  error.response = response;\n  return error;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/core/enhanceError.js\n// module id = 11\n// module chunks = 0","'use strict';\n\nvar utils = require('./../utils');\n\nfunction encode(val) {\n  return encodeURIComponent(val).\n    replace(/%40/gi, '@').\n    replace(/%3A/gi, ':').\n    replace(/%24/g, '$').\n    replace(/%2C/gi, ',').\n    replace(/%20/g, '+').\n    replace(/%5B/gi, '[').\n    replace(/%5D/gi, ']');\n}\n\n/**\n * Build a URL by appending params to the end\n *\n * @param {string} url The base of the url (e.g., http://www.google.com)\n * @param {object} [params] The params to be appended\n * @returns {string} The formatted url\n */\nmodule.exports = function buildURL(url, params, paramsSerializer) {\n  /*eslint no-param-reassign:0*/\n  if (!params) {\n    return url;\n  }\n\n  var serializedParams;\n  if (paramsSerializer) {\n    serializedParams = paramsSerializer(params);\n  } else if (utils.isURLSearchParams(params)) {\n    serializedParams = params.toString();\n  } else {\n    var parts = [];\n\n    utils.forEach(params, function serialize(val, key) {\n      if (val === null || typeof val === 'undefined') {\n        return;\n      }\n\n      if (utils.isArray(val)) {\n        key = key + '[]';\n      }\n\n      if (!utils.isArray(val)) {\n        val = [val];\n      }\n\n      utils.forEach(val, function parseValue(v) {\n        if (utils.isDate(v)) {\n          v = v.toISOString();\n        } else if (utils.isObject(v)) {\n          v = JSON.stringify(v);\n        }\n        parts.push(encode(key) + '=' + encode(v));\n      });\n    });\n\n    serializedParams = parts.join('&');\n  }\n\n  if (serializedParams) {\n    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;\n  }\n\n  return url;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/buildURL.js\n// module id = 12\n// module chunks = 0","'use strict';\n\nvar utils = require('./../utils');\n\n// Headers whose duplicates are ignored by node\n// c.f. https://nodejs.org/api/http.html#http_message_headers\nvar ignoreDuplicateOf = [\n  'age', 'authorization', 'content-length', 'content-type', 'etag',\n  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',\n  'last-modified', 'location', 'max-forwards', 'proxy-authorization',\n  'referer', 'retry-after', 'user-agent'\n];\n\n/**\n * Parse headers into an object\n *\n * ```\n * Date: Wed, 27 Aug 2014 08:58:49 GMT\n * Content-Type: application/json\n * Connection: keep-alive\n * Transfer-Encoding: chunked\n * ```\n *\n * @param {String} headers Headers needing to be parsed\n * @returns {Object} Headers parsed into an object\n */\nmodule.exports = function parseHeaders(headers) {\n  var parsed = {};\n  var key;\n  var val;\n  var i;\n\n  if (!headers) { return parsed; }\n\n  utils.forEach(headers.split('\\n'), function parser(line) {\n    i = line.indexOf(':');\n    key = utils.trim(line.substr(0, i)).toLowerCase();\n    val = utils.trim(line.substr(i + 1));\n\n    if (key) {\n      if (parsed[key] && ignoreDuplicateOf.indexOf(key) >= 0) {\n        return;\n      }\n      if (key === 'set-cookie') {\n        parsed[key] = (parsed[key] ? parsed[key] : []).concat([val]);\n      } else {\n        parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n      }\n    }\n  });\n\n  return parsed;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/parseHeaders.js\n// module id = 13\n// module chunks = 0","'use strict';\n\nvar utils = require('./../utils');\n\nmodule.exports = (\n  utils.isStandardBrowserEnv() ?\n\n  // Standard browser envs have full support of the APIs needed to test\n  // whether the request URL is of the same origin as current location.\n  (function standardBrowserEnv() {\n    var msie = /(msie|trident)/i.test(navigator.userAgent);\n    var urlParsingNode = document.createElement('a');\n    var originURL;\n\n    /**\n    * Parse a URL to discover it's components\n    *\n    * @param {String} url The URL to be parsed\n    * @returns {Object}\n    */\n    function resolveURL(url) {\n      var href = url;\n\n      if (msie) {\n        // IE needs attribute set twice to normalize properties\n        urlParsingNode.setAttribute('href', href);\n        href = urlParsingNode.href;\n      }\n\n      urlParsingNode.setAttribute('href', href);\n\n      // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils\n      return {\n        href: urlParsingNode.href,\n        protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',\n        host: urlParsingNode.host,\n        search: urlParsingNode.search ? urlParsingNode.search.replace(/^\\?/, '') : '',\n        hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',\n        hostname: urlParsingNode.hostname,\n        port: urlParsingNode.port,\n        pathname: (urlParsingNode.pathname.charAt(0) === '/') ?\n                  urlParsingNode.pathname :\n                  '/' + urlParsingNode.pathname\n      };\n    }\n\n    originURL = resolveURL(window.location.href);\n\n    /**\n    * Determine if a URL shares the same origin as the current location\n    *\n    * @param {String} requestURL The URL to test\n    * @returns {boolean} True if URL shares the same origin, otherwise false\n    */\n    return function isURLSameOrigin(requestURL) {\n      var parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL;\n      return (parsed.protocol === originURL.protocol &&\n            parsed.host === originURL.host);\n    };\n  })() :\n\n  // Non standard browser envs (web workers, react-native) lack needed support.\n  (function nonStandardBrowserEnv() {\n    return function isURLSameOrigin() {\n      return true;\n    };\n  })()\n);\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/isURLSameOrigin.js\n// module id = 14\n// module chunks = 0","'use strict';\n\n// btoa polyfill for IE<10 courtesy https://github.com/davidchambers/Base64.js\n\nvar chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';\n\nfunction E() {\n  this.message = 'String contains an invalid character';\n}\nE.prototype = new Error;\nE.prototype.code = 5;\nE.prototype.name = 'InvalidCharacterError';\n\nfunction btoa(input) {\n  var str = String(input);\n  var output = '';\n  for (\n    // initialize result and counter\n    var block, charCode, idx = 0, map = chars;\n    // if the next str index does not exist:\n    //   change the mapping table to \"=\"\n    //   check if d has no fractional digits\n    str.charAt(idx | 0) || (map = '=', idx % 1);\n    // \"8 - idx % 1 * 8\" generates the sequence 2, 4, 6, 8\n    output += map.charAt(63 & block >> 8 - idx % 1 * 8)\n  ) {\n    charCode = str.charCodeAt(idx += 3 / 4);\n    if (charCode > 0xFF) {\n      throw new E();\n    }\n    block = block << 8 | charCode;\n  }\n  return output;\n}\n\nmodule.exports = btoa;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/btoa.js\n// module id = 15\n// module chunks = 0","'use strict';\n\nvar utils = require('./../utils');\n\nmodule.exports = (\n  utils.isStandardBrowserEnv() ?\n\n  // Standard browser envs support document.cookie\n  (function standardBrowserEnv() {\n    return {\n      write: function write(name, value, expires, path, domain, secure) {\n        var cookie = [];\n        cookie.push(name + '=' + encodeURIComponent(value));\n\n        if (utils.isNumber(expires)) {\n          cookie.push('expires=' + new Date(expires).toGMTString());\n        }\n\n        if (utils.isString(path)) {\n          cookie.push('path=' + path);\n        }\n\n        if (utils.isString(domain)) {\n          cookie.push('domain=' + domain);\n        }\n\n        if (secure === true) {\n          cookie.push('secure');\n        }\n\n        document.cookie = cookie.join('; ');\n      },\n\n      read: function read(name) {\n        var match = document.cookie.match(new RegExp('(^|;\\\\s*)(' + name + ')=([^;]*)'));\n        return (match ? decodeURIComponent(match[3]) : null);\n      },\n\n      remove: function remove(name) {\n        this.write(name, '', Date.now() - 86400000);\n      }\n    };\n  })() :\n\n  // Non standard browser env (web workers, react-native) lack needed support.\n  (function nonStandardBrowserEnv() {\n    return {\n      write: function write() {},\n      read: function read() { return null; },\n      remove: function remove() {}\n    };\n  })()\n);\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/cookies.js\n// module id = 16\n// module chunks = 0","'use strict';\n\nvar utils = require('./../utils');\n\nfunction InterceptorManager() {\n  this.handlers = [];\n}\n\n/**\n * Add a new interceptor to the stack\n *\n * @param {Function} fulfilled The function to handle `then` for a `Promise`\n * @param {Function} rejected The function to handle `reject` for a `Promise`\n *\n * @return {Number} An ID used to remove interceptor later\n */\nInterceptorManager.prototype.use = function use(fulfilled, rejected) {\n  this.handlers.push({\n    fulfilled: fulfilled,\n    rejected: rejected\n  });\n  return this.handlers.length - 1;\n};\n\n/**\n * Remove an interceptor from the stack\n *\n * @param {Number} id The ID that was returned by `use`\n */\nInterceptorManager.prototype.eject = function eject(id) {\n  if (this.handlers[id]) {\n    this.handlers[id] = null;\n  }\n};\n\n/**\n * Iterate over all the registered interceptors\n *\n * This method is particularly useful for skipping over any\n * interceptors that may have become `null` calling `eject`.\n *\n * @param {Function} fn The function to call for each interceptor\n */\nInterceptorManager.prototype.forEach = function forEach(fn) {\n  utils.forEach(this.handlers, function forEachHandler(h) {\n    if (h !== null) {\n      fn(h);\n    }\n  });\n};\n\nmodule.exports = InterceptorManager;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/core/InterceptorManager.js\n// module id = 17\n// module chunks = 0","'use strict';\n\nvar utils = require('./../utils');\nvar transformData = require('./transformData');\nvar isCancel = require('../cancel/isCancel');\nvar defaults = require('../defaults');\nvar isAbsoluteURL = require('./../helpers/isAbsoluteURL');\nvar combineURLs = require('./../helpers/combineURLs');\n\n/**\n * Throws a `Cancel` if cancellation has been requested.\n */\nfunction throwIfCancellationRequested(config) {\n  if (config.cancelToken) {\n    config.cancelToken.throwIfRequested();\n  }\n}\n\n/**\n * Dispatch a request to the server using the configured adapter.\n *\n * @param {object} config The config that is to be used for the request\n * @returns {Promise} The Promise to be fulfilled\n */\nmodule.exports = function dispatchRequest(config) {\n  throwIfCancellationRequested(config);\n\n  // Support baseURL config\n  if (config.baseURL && !isAbsoluteURL(config.url)) {\n    config.url = combineURLs(config.baseURL, config.url);\n  }\n\n  // Ensure headers exist\n  config.headers = config.headers || {};\n\n  // Transform request data\n  config.data = transformData(\n    config.data,\n    config.headers,\n    config.transformRequest\n  );\n\n  // Flatten headers\n  config.headers = utils.merge(\n    config.headers.common || {},\n    config.headers[config.method] || {},\n    config.headers || {}\n  );\n\n  utils.forEach(\n    ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],\n    function cleanHeaderConfig(method) {\n      delete config.headers[method];\n    }\n  );\n\n  var adapter = config.adapter || defaults.adapter;\n\n  return adapter(config).then(function onAdapterResolution(response) {\n    throwIfCancellationRequested(config);\n\n    // Transform response data\n    response.data = transformData(\n      response.data,\n      response.headers,\n      config.transformResponse\n    );\n\n    return response;\n  }, function onAdapterRejection(reason) {\n    if (!isCancel(reason)) {\n      throwIfCancellationRequested(config);\n\n      // Transform response data\n      if (reason && reason.response) {\n        reason.response.data = transformData(\n          reason.response.data,\n          reason.response.headers,\n          config.transformResponse\n        );\n      }\n    }\n\n    return Promise.reject(reason);\n  });\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/core/dispatchRequest.js\n// module id = 18\n// module chunks = 0","'use strict';\n\nvar utils = require('./../utils');\n\n/**\n * Transform the data for a request or a response\n *\n * @param {Object|String} data The data to be transformed\n * @param {Array} headers The headers for the request or response\n * @param {Array|Function} fns A single function or Array of functions\n * @returns {*} The resulting transformed data\n */\nmodule.exports = function transformData(data, headers, fns) {\n  /*eslint no-param-reassign:0*/\n  utils.forEach(fns, function transform(fn) {\n    data = fn(data, headers);\n  });\n\n  return data;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/core/transformData.js\n// module id = 19\n// module chunks = 0","'use strict';\n\nmodule.exports = function isCancel(value) {\n  return !!(value && value.__CANCEL__);\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/cancel/isCancel.js\n// module id = 20\n// module chunks = 0","'use strict';\n\n/**\n * Determines whether the specified URL is absolute\n *\n * @param {string} url The URL to test\n * @returns {boolean} True if the specified URL is absolute, otherwise false\n */\nmodule.exports = function isAbsoluteURL(url) {\n  // A URL is considered absolute if it begins with \"<scheme>://\" or \"//\" (protocol-relative URL).\n  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed\n  // by any combination of letters, digits, plus, period, or hyphen.\n  return /^([a-z][a-z\\d\\+\\-\\.]*:)?\\/\\//i.test(url);\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/isAbsoluteURL.js\n// module id = 21\n// module chunks = 0","'use strict';\n\n/**\n * Creates a new URL by combining the specified URLs\n *\n * @param {string} baseURL The base URL\n * @param {string} relativeURL The relative URL\n * @returns {string} The combined URL\n */\nmodule.exports = function combineURLs(baseURL, relativeURL) {\n  return relativeURL\n    ? baseURL.replace(/\\/+$/, '') + '/' + relativeURL.replace(/^\\/+/, '')\n    : baseURL;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/combineURLs.js\n// module id = 22\n// module chunks = 0","'use strict';\n\n/**\n * A `Cancel` is an object that is thrown when an operation is canceled.\n *\n * @class\n * @param {string=} message The message.\n */\nfunction Cancel(message) {\n  this.message = message;\n}\n\nCancel.prototype.toString = function toString() {\n  return 'Cancel' + (this.message ? ': ' + this.message : '');\n};\n\nCancel.prototype.__CANCEL__ = true;\n\nmodule.exports = Cancel;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/cancel/Cancel.js\n// module id = 23\n// module chunks = 0","'use strict';\n\nvar Cancel = require('./Cancel');\n\n/**\n * A `CancelToken` is an object that can be used to request cancellation of an operation.\n *\n * @class\n * @param {Function} executor The executor function.\n */\nfunction CancelToken(executor) {\n  if (typeof executor !== 'function') {\n    throw new TypeError('executor must be a function.');\n  }\n\n  var resolvePromise;\n  this.promise = new Promise(function promiseExecutor(resolve) {\n    resolvePromise = resolve;\n  });\n\n  var token = this;\n  executor(function cancel(message) {\n    if (token.reason) {\n      // Cancellation has already been requested\n      return;\n    }\n\n    token.reason = new Cancel(message);\n    resolvePromise(token.reason);\n  });\n}\n\n/**\n * Throws a `Cancel` if cancellation has been requested.\n */\nCancelToken.prototype.throwIfRequested = function throwIfRequested() {\n  if (this.reason) {\n    throw this.reason;\n  }\n};\n\n/**\n * Returns an object that contains a new `CancelToken` and a function that, when called,\n * cancels the `CancelToken`.\n */\nCancelToken.source = function source() {\n  var cancel;\n  var token = new CancelToken(function executor(c) {\n    cancel = c;\n  });\n  return {\n    token: token,\n    cancel: cancel\n  };\n};\n\nmodule.exports = CancelToken;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/cancel/CancelToken.js\n// module id = 24\n// module chunks = 0","'use strict';\n\n/**\n * Syntactic sugar for invoking a function and expanding an array for arguments.\n *\n * Common use case would be to use `Function.prototype.apply`.\n *\n *  ```js\n *  function f(x, y, z) {}\n *  var args = [1, 2, 3];\n *  f.apply(null, args);\n *  ```\n *\n * With `spread` this example can be re-written.\n *\n *  ```js\n *  spread(function(x, y, z) {})([1, 2, 3]);\n *  ```\n *\n * @param {Function} callback\n * @returns {Function}\n */\nmodule.exports = function spread(callback) {\n  return function wrap(arr) {\n    return callback.apply(null, arr);\n  };\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/spread.js\n// module id = 25\n// module chunks = 0"],"sourceRoot":""}
\ No newline at end of file
diff --git a/helloworld/node_modules/axios/dist/axios.min.js b/helloworld/node_modules/axios/dist/axios.min.js
new file mode 100755
index 0000000..c27e70b
--- /dev/null
+++ b/helloworld/node_modules/axios/dist/axios.min.js
@@ -0,0 +1,9 @@
+/* axios v0.17.1 | (c) 2017 by Matt Zabriskie */
+!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.axios=t():e.axios=t()}(this,function(){return function(e){function t(r){if(n[r])return n[r].exports;var o=n[r]={exports:{},id:r,loaded:!1};return e[r].call(o.exports,o,o.exports,t),o.loaded=!0,o.exports}var n={};return t.m=e,t.c=n,t.p="",t(0)}([function(e,t,n){e.exports=n(1)},function(e,t,n){"use strict";function r(e){var t=new s(e),n=i(s.prototype.request,t);return o.extend(n,s.prototype,t),o.extend(n,t),n}var o=n(2),i=n(3),s=n(5),u=n(6),a=r(u);a.Axios=s,a.create=function(e){return r(o.merge(u,e))},a.Cancel=n(23),a.CancelToken=n(24),a.isCancel=n(20),a.all=function(e){return Promise.all(e)},a.spread=n(25),e.exports=a,e.exports.default=a},function(e,t,n){"use strict";function r(e){return"[object Array]"===R.call(e)}function o(e){return"[object ArrayBuffer]"===R.call(e)}function i(e){return"undefined"!=typeof FormData&&e instanceof FormData}function s(e){var t;return t="undefined"!=typeof ArrayBuffer&&ArrayBuffer.isView?ArrayBuffer.isView(e):e&&e.buffer&&e.buffer instanceof ArrayBuffer}function u(e){return"string"==typeof e}function a(e){return"number"==typeof e}function c(e){return"undefined"==typeof e}function f(e){return null!==e&&"object"==typeof e}function p(e){return"[object Date]"===R.call(e)}function d(e){return"[object File]"===R.call(e)}function l(e){return"[object Blob]"===R.call(e)}function h(e){return"[object Function]"===R.call(e)}function m(e){return f(e)&&h(e.pipe)}function y(e){return"undefined"!=typeof URLSearchParams&&e instanceof URLSearchParams}function w(e){return e.replace(/^\s*/,"").replace(/\s*$/,"")}function g(){return("undefined"==typeof navigator||"ReactNative"!==navigator.product)&&("undefined"!=typeof window&&"undefined"!=typeof document)}function v(e,t){if(null!==e&&"undefined"!=typeof e)if("object"!=typeof e&&(e=[e]),r(e))for(var n=0,o=e.length;n<o;n++)t.call(null,e[n],n,e);else for(var i in e)Object.prototype.hasOwnProperty.call(e,i)&&t.call(null,e[i],i,e)}function x(){function e(e,n){"object"==typeof t[n]&&"object"==typeof e?t[n]=x(t[n],e):t[n]=e}for(var t={},n=0,r=arguments.length;n<r;n++)v(arguments[n],e);return t}function b(e,t,n){return v(t,function(t,r){n&&"function"==typeof t?e[r]=E(t,n):e[r]=t}),e}var E=n(3),C=n(4),R=Object.prototype.toString;e.exports={isArray:r,isArrayBuffer:o,isBuffer:C,isFormData:i,isArrayBufferView:s,isString:u,isNumber:a,isObject:f,isUndefined:c,isDate:p,isFile:d,isBlob:l,isFunction:h,isStream:m,isURLSearchParams:y,isStandardBrowserEnv:g,forEach:v,merge:x,extend:b,trim:w}},function(e,t){"use strict";e.exports=function(e,t){return function(){for(var n=new Array(arguments.length),r=0;r<n.length;r++)n[r]=arguments[r];return e.apply(t,n)}}},function(e,t){function n(e){return!!e.constructor&&"function"==typeof e.constructor.isBuffer&&e.constructor.isBuffer(e)}function r(e){return"function"==typeof e.readFloatLE&&"function"==typeof e.slice&&n(e.slice(0,0))}/*!
+	 * Determine if an object is a Buffer
+	 *
+	 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+	 * @license  MIT
+	 */
+e.exports=function(e){return null!=e&&(n(e)||r(e)||!!e._isBuffer)}},function(e,t,n){"use strict";function r(e){this.defaults=e,this.interceptors={request:new s,response:new s}}var o=n(6),i=n(2),s=n(17),u=n(18);r.prototype.request=function(e){"string"==typeof e&&(e=i.merge({url:arguments[0]},arguments[1])),e=i.merge(o,this.defaults,{method:"get"},e),e.method=e.method.toLowerCase();var t=[u,void 0],n=Promise.resolve(e);for(this.interceptors.request.forEach(function(e){t.unshift(e.fulfilled,e.rejected)}),this.interceptors.response.forEach(function(e){t.push(e.fulfilled,e.rejected)});t.length;)n=n.then(t.shift(),t.shift());return n},i.forEach(["delete","get","head","options"],function(e){r.prototype[e]=function(t,n){return this.request(i.merge(n||{},{method:e,url:t}))}}),i.forEach(["post","put","patch"],function(e){r.prototype[e]=function(t,n,r){return this.request(i.merge(r||{},{method:e,url:t,data:n}))}}),e.exports=r},function(e,t,n){"use strict";function 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Date]';\n\t}\n\t\n\t/**\n\t * Determine if a value is a File\n\t *\n\t * @param {Object} val The value to test\n\t * @returns {boolean} True if value is a File, otherwise false\n\t */\n\tfunction isFile(val) {\n\t  return toString.call(val) === '[object File]';\n\t}\n\t\n\t/**\n\t * Determine if a value is a Blob\n\t *\n\t * @param {Object} val The value to test\n\t * @returns {boolean} True if value is a Blob, otherwise false\n\t */\n\tfunction isBlob(val) {\n\t  return toString.call(val) === '[object Blob]';\n\t}\n\t\n\t/**\n\t * Determine if a value is a Function\n\t *\n\t * @param {Object} val The value to test\n\t * @returns {boolean} True if value is a Function, otherwise false\n\t */\n\tfunction isFunction(val) {\n\t  return toString.call(val) === '[object Function]';\n\t}\n\t\n\t/**\n\t * Determine if a value is a Stream\n\t *\n\t * @param {Object} val The value to test\n\t * @returns {boolean} True if value is a Stream, otherwise false\n\t */\n\tfunction isStream(val) {\n\t  return isObject(val) && isFunction(val.pipe);\n\t}\n\t\n\t/**\n\t * Determine if a value is a URLSearchParams object\n\t *\n\t * @param {Object} val The value to test\n\t * @returns {boolean} True if value is a URLSearchParams object, otherwise false\n\t */\n\tfunction isURLSearchParams(val) {\n\t  return typeof URLSearchParams !== 'undefined' && val instanceof URLSearchParams;\n\t}\n\t\n\t/**\n\t * Trim excess whitespace off the beginning and end of a string\n\t *\n\t * @param {String} str The String to trim\n\t * @returns {String} The String freed of excess whitespace\n\t */\n\tfunction trim(str) {\n\t  return str.replace(/^\\s*/, '').replace(/\\s*$/, '');\n\t}\n\t\n\t/**\n\t * Determine if we're running in a standard browser environment\n\t *\n\t * This allows axios to run in a web worker, and react-native.\n\t * Both environments support XMLHttpRequest, but not fully standard globals.\n\t *\n\t * web workers:\n\t *  typeof window -> undefined\n\t *  typeof document -> undefined\n\t *\n\t * react-native:\n\t *  navigator.product -> 'ReactNative'\n\t */\n\tfunction isStandardBrowserEnv() {\n\t  if (typeof navigator !== 'undefined' && navigator.product === 'ReactNative') {\n\t    return false;\n\t  }\n\t  return (\n\t    typeof window !== 'undefined' &&\n\t    typeof document !== 'undefined'\n\t  );\n\t}\n\t\n\t/**\n\t * Iterate over an Array or an Object invoking a function for each item.\n\t *\n\t * If `obj` is an Array callback will be called passing\n\t * the value, index, and complete array for each item.\n\t *\n\t * If 'obj' is an Object callback will be called passing\n\t * the value, key, and complete object for each property.\n\t *\n\t * @param {Object|Array} obj The object to iterate\n\t * @param {Function} fn The callback to invoke for each item\n\t */\n\tfunction forEach(obj, fn) {\n\t  // Don't bother if no value provided\n\t  if (obj === null || typeof obj === 'undefined') {\n\t    return;\n\t  }\n\t\n\t  // Force an array if not already something iterable\n\t  if (typeof obj !== 'object') {\n\t    /*eslint no-param-reassign:0*/\n\t    obj = [obj];\n\t  }\n\t\n\t  if (isArray(obj)) {\n\t    // Iterate over array values\n\t    for (var i = 0, l = obj.length; i < l; i++) {\n\t      fn.call(null, obj[i], i, obj);\n\t    }\n\t  } else {\n\t    // Iterate over object keys\n\t    for (var key in obj) {\n\t      if (Object.prototype.hasOwnProperty.call(obj, key)) {\n\t        fn.call(null, obj[key], key, obj);\n\t      }\n\t    }\n\t  }\n\t}\n\t\n\t/**\n\t * Accepts varargs expecting each argument to be an object, then\n\t * immutably merges the properties of each object and returns result.\n\t *\n\t * When multiple objects contain the same key the later object in\n\t * the arguments list will take precedence.\n\t *\n\t * Example:\n\t *\n\t * ```js\n\t * var result = merge({foo: 123}, {foo: 456});\n\t * console.log(result.foo); // outputs 456\n\t * ```\n\t *\n\t * @param {Object} obj1 Object to merge\n\t * @returns {Object} Result of all merge properties\n\t */\n\tfunction merge(/* obj1, obj2, obj3, ... */) {\n\t  var result = {};\n\t  function assignValue(val, key) {\n\t    if (typeof result[key] === 'object' && typeof val === 'object') {\n\t      result[key] = merge(result[key], val);\n\t    } else {\n\t      result[key] = val;\n\t    }\n\t  }\n\t\n\t  for (var i = 0, l = arguments.length; i < l; i++) {\n\t    forEach(arguments[i], assignValue);\n\t  }\n\t  return result;\n\t}\n\t\n\t/**\n\t * Extends object a by mutably adding to it the properties of object b.\n\t *\n\t * @param {Object} a The object to be extended\n\t * @param {Object} b The object to copy properties from\n\t * @param {Object} thisArg The object to bind function to\n\t * @return {Object} The resulting value of object a\n\t */\n\tfunction extend(a, b, thisArg) {\n\t  forEach(b, function assignValue(val, key) {\n\t    if (thisArg && typeof val === 'function') {\n\t      a[key] = bind(val, thisArg);\n\t    } else {\n\t      a[key] = val;\n\t    }\n\t  });\n\t  return a;\n\t}\n\t\n\tmodule.exports = {\n\t  isArray: isArray,\n\t  isArrayBuffer: isArrayBuffer,\n\t  isBuffer: isBuffer,\n\t  isFormData: isFormData,\n\t  isArrayBufferView: isArrayBufferView,\n\t  isString: isString,\n\t  isNumber: isNumber,\n\t  isObject: isObject,\n\t  isUndefined: isUndefined,\n\t  isDate: isDate,\n\t  isFile: isFile,\n\t  isBlob: isBlob,\n\t  isFunction: isFunction,\n\t  isStream: isStream,\n\t  isURLSearchParams: isURLSearchParams,\n\t  isStandardBrowserEnv: isStandardBrowserEnv,\n\t  forEach: forEach,\n\t  merge: merge,\n\t  extend: extend,\n\t  trim: trim\n\t};\n\n\n/***/ }),\n/* 3 */\n/***/ (function(module, exports) {\n\n\t'use strict';\n\t\n\tmodule.exports = function bind(fn, thisArg) {\n\t  return function wrap() {\n\t    var args = new Array(arguments.length);\n\t    for (var i = 0; i < args.length; i++) {\n\t      args[i] = arguments[i];\n\t    }\n\t    return fn.apply(thisArg, args);\n\t  };\n\t};\n\n\n/***/ }),\n/* 4 */\n/***/ (function(module, exports) {\n\n\t/*!\n\t * Determine if an object is a Buffer\n\t *\n\t * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>\n\t * @license  MIT\n\t */\n\t\n\t// The _isBuffer check is for Safari 5-7 support, because it's missing\n\t// Object.prototype.constructor. Remove this eventually\n\tmodule.exports = function (obj) {\n\t  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)\n\t}\n\t\n\tfunction isBuffer (obj) {\n\t  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)\n\t}\n\t\n\t// For Node v0.10 support. Remove this eventually.\n\tfunction isSlowBuffer (obj) {\n\t  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))\n\t}\n\n\n/***/ }),\n/* 5 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar defaults = __webpack_require__(6);\n\tvar utils = __webpack_require__(2);\n\tvar InterceptorManager = __webpack_require__(17);\n\tvar dispatchRequest = __webpack_require__(18);\n\t\n\t/**\n\t * Create a new instance of Axios\n\t *\n\t * @param {Object} instanceConfig The default config for the instance\n\t */\n\tfunction Axios(instanceConfig) {\n\t  this.defaults = instanceConfig;\n\t  this.interceptors = {\n\t    request: new InterceptorManager(),\n\t    response: new InterceptorManager()\n\t  };\n\t}\n\t\n\t/**\n\t * Dispatch a request\n\t *\n\t * @param {Object} config The config specific for this request (merged with this.defaults)\n\t */\n\tAxios.prototype.request = function request(config) {\n\t  /*eslint no-param-reassign:0*/\n\t  // Allow for axios('example/url'[, config]) a la fetch API\n\t  if (typeof config === 'string') {\n\t    config = utils.merge({\n\t      url: arguments[0]\n\t    }, arguments[1]);\n\t  }\n\t\n\t  config = utils.merge(defaults, this.defaults, { method: 'get' }, config);\n\t  config.method = config.method.toLowerCase();\n\t\n\t  // Hook up interceptors middleware\n\t  var chain = [dispatchRequest, undefined];\n\t  var promise = Promise.resolve(config);\n\t\n\t  this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {\n\t    chain.unshift(interceptor.fulfilled, interceptor.rejected);\n\t  });\n\t\n\t  this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {\n\t    chain.push(interceptor.fulfilled, interceptor.rejected);\n\t  });\n\t\n\t  while (chain.length) {\n\t    promise = promise.then(chain.shift(), chain.shift());\n\t  }\n\t\n\t  return promise;\n\t};\n\t\n\t// Provide aliases for supported request methods\n\tutils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {\n\t  /*eslint func-names:0*/\n\t  Axios.prototype[method] = function(url, config) {\n\t    return this.request(utils.merge(config || {}, {\n\t      method: method,\n\t      url: url\n\t    }));\n\t  };\n\t});\n\t\n\tutils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {\n\t  /*eslint func-names:0*/\n\t  Axios.prototype[method] = function(url, data, config) {\n\t    return this.request(utils.merge(config || {}, {\n\t      method: method,\n\t      url: url,\n\t      data: data\n\t    }));\n\t  };\n\t});\n\t\n\tmodule.exports = Axios;\n\n\n/***/ }),\n/* 6 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar utils = __webpack_require__(2);\n\tvar normalizeHeaderName = __webpack_require__(7);\n\t\n\tvar DEFAULT_CONTENT_TYPE = {\n\t  'Content-Type': 'application/x-www-form-urlencoded'\n\t};\n\t\n\tfunction setContentTypeIfUnset(headers, value) {\n\t  if (!utils.isUndefined(headers) && utils.isUndefined(headers['Content-Type'])) {\n\t    headers['Content-Type'] = value;\n\t  }\n\t}\n\t\n\tfunction getDefaultAdapter() {\n\t  var adapter;\n\t  if (typeof XMLHttpRequest !== 'undefined') {\n\t    // For browsers use XHR adapter\n\t    adapter = __webpack_require__(8);\n\t  } else if (typeof process !== 'undefined') {\n\t    // For node use HTTP adapter\n\t    adapter = __webpack_require__(8);\n\t  }\n\t  return adapter;\n\t}\n\t\n\tvar defaults = {\n\t  adapter: getDefaultAdapter(),\n\t\n\t  transformRequest: [function transformRequest(data, headers) {\n\t    normalizeHeaderName(headers, 'Content-Type');\n\t    if (utils.isFormData(data) ||\n\t      utils.isArrayBuffer(data) ||\n\t      utils.isBuffer(data) ||\n\t      utils.isStream(data) ||\n\t      utils.isFile(data) ||\n\t      utils.isBlob(data)\n\t    ) {\n\t      return data;\n\t    }\n\t    if (utils.isArrayBufferView(data)) {\n\t      return data.buffer;\n\t    }\n\t    if (utils.isURLSearchParams(data)) {\n\t      setContentTypeIfUnset(headers, 'application/x-www-form-urlencoded;charset=utf-8');\n\t      return data.toString();\n\t    }\n\t    if (utils.isObject(data)) {\n\t      setContentTypeIfUnset(headers, 'application/json;charset=utf-8');\n\t      return JSON.stringify(data);\n\t    }\n\t    return data;\n\t  }],\n\t\n\t  transformResponse: [function transformResponse(data) {\n\t    /*eslint no-param-reassign:0*/\n\t    if (typeof data === 'string') {\n\t      try {\n\t        data = JSON.parse(data);\n\t      } catch (e) { /* Ignore */ }\n\t    }\n\t    return data;\n\t  }],\n\t\n\t  timeout: 0,\n\t\n\t  xsrfCookieName: 'XSRF-TOKEN',\n\t  xsrfHeaderName: 'X-XSRF-TOKEN',\n\t\n\t  maxContentLength: -1,\n\t\n\t  validateStatus: function validateStatus(status) {\n\t    return status >= 200 && status < 300;\n\t  }\n\t};\n\t\n\tdefaults.headers = {\n\t  common: {\n\t    'Accept': 'application/json, text/plain, */*'\n\t  }\n\t};\n\t\n\tutils.forEach(['delete', 'get', 'head'], function forEachMethodNoData(method) {\n\t  defaults.headers[method] = {};\n\t});\n\t\n\tutils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {\n\t  defaults.headers[method] = utils.merge(DEFAULT_CONTENT_TYPE);\n\t});\n\t\n\tmodule.exports = defaults;\n\n\n/***/ }),\n/* 7 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar utils = __webpack_require__(2);\n\t\n\tmodule.exports = function normalizeHeaderName(headers, normalizedName) {\n\t  utils.forEach(headers, function processHeader(value, name) {\n\t    if (name !== normalizedName && name.toUpperCase() === normalizedName.toUpperCase()) {\n\t      headers[normalizedName] = value;\n\t      delete headers[name];\n\t    }\n\t  });\n\t};\n\n\n/***/ }),\n/* 8 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar utils = __webpack_require__(2);\n\tvar settle = __webpack_require__(9);\n\tvar buildURL = __webpack_require__(12);\n\tvar parseHeaders = __webpack_require__(13);\n\tvar isURLSameOrigin = __webpack_require__(14);\n\tvar createError = __webpack_require__(10);\n\tvar btoa = (typeof window !== 'undefined' && window.btoa && window.btoa.bind(window)) || __webpack_require__(15);\n\t\n\tmodule.exports = function xhrAdapter(config) {\n\t  return new Promise(function dispatchXhrRequest(resolve, reject) {\n\t    var requestData = config.data;\n\t    var requestHeaders = config.headers;\n\t\n\t    if (utils.isFormData(requestData)) {\n\t      delete requestHeaders['Content-Type']; // Let the browser set it\n\t    }\n\t\n\t    var request = new XMLHttpRequest();\n\t    var loadEvent = 'onreadystatechange';\n\t    var xDomain = false;\n\t\n\t    // For IE 8/9 CORS support\n\t    // Only supports POST and GET calls and doesn't returns the response headers.\n\t    // DON'T do this for testing b/c XMLHttpRequest is mocked, not XDomainRequest.\n\t    if ((\"production\") !== 'test' &&\n\t        typeof window !== 'undefined' &&\n\t        window.XDomainRequest && !('withCredentials' in request) &&\n\t        !isURLSameOrigin(config.url)) {\n\t      request = new window.XDomainRequest();\n\t      loadEvent = 'onload';\n\t      xDomain = true;\n\t      request.onprogress = function handleProgress() {};\n\t      request.ontimeout = function handleTimeout() {};\n\t    }\n\t\n\t    // HTTP basic authentication\n\t    if (config.auth) {\n\t      var username = config.auth.username || '';\n\t      var password = config.auth.password || '';\n\t      requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password);\n\t    }\n\t\n\t    request.open(config.method.toUpperCase(), buildURL(config.url, config.params, config.paramsSerializer), true);\n\t\n\t    // Set the request timeout in MS\n\t    request.timeout = config.timeout;\n\t\n\t    // Listen for ready state\n\t    request[loadEvent] = function handleLoad() {\n\t      if (!request || (request.readyState !== 4 && !xDomain)) {\n\t        return;\n\t      }\n\t\n\t      // The request errored out and we didn't get a response, this will be\n\t      // handled by onerror instead\n\t      // With one exception: request that using file: protocol, most browsers\n\t      // will return status as 0 even though it's a successful request\n\t      if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {\n\t        return;\n\t      }\n\t\n\t      // Prepare the response\n\t      var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null;\n\t      var responseData = !config.responseType || config.responseType === 'text' ? request.responseText : request.response;\n\t      var response = {\n\t        data: responseData,\n\t        // IE sends 1223 instead of 204 (https://github.com/axios/axios/issues/201)\n\t        status: request.status === 1223 ? 204 : request.status,\n\t        statusText: request.status === 1223 ? 'No Content' : request.statusText,\n\t        headers: responseHeaders,\n\t        config: config,\n\t        request: request\n\t      };\n\t\n\t      settle(resolve, reject, response);\n\t\n\t      // Clean up request\n\t      request = null;\n\t    };\n\t\n\t    // Handle low level network errors\n\t    request.onerror = function handleError() {\n\t      // Real errors are hidden from us by the browser\n\t      // onerror should only fire if it's a network error\n\t      reject(createError('Network Error', config, null, request));\n\t\n\t      // Clean up request\n\t      request = null;\n\t    };\n\t\n\t    // Handle timeout\n\t    request.ontimeout = function handleTimeout() {\n\t      reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED',\n\t        request));\n\t\n\t      // Clean up request\n\t      request = null;\n\t    };\n\t\n\t    // Add xsrf header\n\t    // This is only done if running in a standard browser environment.\n\t    // Specifically not if we're in a web worker, or react-native.\n\t    if (utils.isStandardBrowserEnv()) {\n\t      var cookies = __webpack_require__(16);\n\t\n\t      // Add xsrf header\n\t      var xsrfValue = (config.withCredentials || isURLSameOrigin(config.url)) && config.xsrfCookieName ?\n\t          cookies.read(config.xsrfCookieName) :\n\t          undefined;\n\t\n\t      if (xsrfValue) {\n\t        requestHeaders[config.xsrfHeaderName] = xsrfValue;\n\t      }\n\t    }\n\t\n\t    // Add headers to the request\n\t    if ('setRequestHeader' in request) {\n\t      utils.forEach(requestHeaders, function setRequestHeader(val, key) {\n\t        if (typeof requestData === 'undefined' && key.toLowerCase() === 'content-type') {\n\t          // Remove Content-Type if data is undefined\n\t          delete requestHeaders[key];\n\t        } else {\n\t          // Otherwise add header to the request\n\t          request.setRequestHeader(key, val);\n\t        }\n\t      });\n\t    }\n\t\n\t    // Add withCredentials to request if needed\n\t    if (config.withCredentials) {\n\t      request.withCredentials = true;\n\t    }\n\t\n\t    // Add responseType to request if needed\n\t    if (config.responseType) {\n\t      try {\n\t        request.responseType = config.responseType;\n\t      } catch (e) {\n\t        // Expected DOMException thrown by browsers not compatible XMLHttpRequest Level 2.\n\t        // But, this can be suppressed for 'json' type as it can be parsed by default 'transformResponse' function.\n\t        if (config.responseType !== 'json') {\n\t          throw e;\n\t        }\n\t      }\n\t    }\n\t\n\t    // Handle progress if needed\n\t    if (typeof config.onDownloadProgress === 'function') {\n\t      request.addEventListener('progress', config.onDownloadProgress);\n\t    }\n\t\n\t    // Not all browsers support upload events\n\t    if (typeof config.onUploadProgress === 'function' && request.upload) {\n\t      request.upload.addEventListener('progress', config.onUploadProgress);\n\t    }\n\t\n\t    if (config.cancelToken) {\n\t      // Handle cancellation\n\t      config.cancelToken.promise.then(function onCanceled(cancel) {\n\t        if (!request) {\n\t          return;\n\t        }\n\t\n\t        request.abort();\n\t        reject(cancel);\n\t        // Clean up request\n\t        request = null;\n\t      });\n\t    }\n\t\n\t    if (requestData === undefined) {\n\t      requestData = null;\n\t    }\n\t\n\t    // Send the request\n\t    request.send(requestData);\n\t  });\n\t};\n\n\n/***/ }),\n/* 9 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar createError = __webpack_require__(10);\n\t\n\t/**\n\t * Resolve or reject a Promise based on response status.\n\t *\n\t * @param {Function} resolve A function that resolves the promise.\n\t * @param {Function} reject A function that rejects the promise.\n\t * @param {object} response The response.\n\t */\n\tmodule.exports = function settle(resolve, reject, response) {\n\t  var validateStatus = response.config.validateStatus;\n\t  // Note: status is not exposed by XDomainRequest\n\t  if (!response.status || !validateStatus || validateStatus(response.status)) {\n\t    resolve(response);\n\t  } else {\n\t    reject(createError(\n\t      'Request failed with status code ' + response.status,\n\t      response.config,\n\t      null,\n\t      response.request,\n\t      response\n\t    ));\n\t  }\n\t};\n\n\n/***/ }),\n/* 10 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar enhanceError = __webpack_require__(11);\n\t\n\t/**\n\t * Create an Error with the specified message, config, error code, request and response.\n\t *\n\t * @param {string} message The error message.\n\t * @param {Object} config The config.\n\t * @param {string} [code] The error code (for example, 'ECONNABORTED').\n\t * @param {Object} [request] The request.\n\t * @param {Object} [response] The response.\n\t * @returns {Error} The created error.\n\t */\n\tmodule.exports = function createError(message, config, code, request, response) {\n\t  var error = new Error(message);\n\t  return enhanceError(error, config, code, request, response);\n\t};\n\n\n/***/ }),\n/* 11 */\n/***/ (function(module, exports) {\n\n\t'use strict';\n\t\n\t/**\n\t * Update an Error with the specified config, error code, and response.\n\t *\n\t * @param {Error} error The error to update.\n\t * @param {Object} config The config.\n\t * @param {string} [code] The error code (for example, 'ECONNABORTED').\n\t * @param {Object} [request] The request.\n\t * @param {Object} [response] The response.\n\t * @returns {Error} The error.\n\t */\n\tmodule.exports = function enhanceError(error, config, code, request, response) {\n\t  error.config = config;\n\t  if (code) {\n\t    error.code = code;\n\t  }\n\t  error.request = request;\n\t  error.response = response;\n\t  return error;\n\t};\n\n\n/***/ }),\n/* 12 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar utils = __webpack_require__(2);\n\t\n\tfunction encode(val) {\n\t  return encodeURIComponent(val).\n\t    replace(/%40/gi, '@').\n\t    replace(/%3A/gi, ':').\n\t    replace(/%24/g, '$').\n\t    replace(/%2C/gi, ',').\n\t    replace(/%20/g, '+').\n\t    replace(/%5B/gi, '[').\n\t    replace(/%5D/gi, ']');\n\t}\n\t\n\t/**\n\t * Build a URL by appending params to the end\n\t *\n\t * @param {string} url The base of the url (e.g., http://www.google.com)\n\t * @param {object} [params] The params to be appended\n\t * @returns {string} The formatted url\n\t */\n\tmodule.exports = function buildURL(url, params, paramsSerializer) {\n\t  /*eslint no-param-reassign:0*/\n\t  if (!params) {\n\t    return url;\n\t  }\n\t\n\t  var serializedParams;\n\t  if (paramsSerializer) {\n\t    serializedParams = paramsSerializer(params);\n\t  } else if (utils.isURLSearchParams(params)) {\n\t    serializedParams = params.toString();\n\t  } else {\n\t    var parts = [];\n\t\n\t    utils.forEach(params, function serialize(val, key) {\n\t      if (val === null || typeof val === 'undefined') {\n\t        return;\n\t      }\n\t\n\t      if (utils.isArray(val)) {\n\t        key = key + '[]';\n\t      }\n\t\n\t      if (!utils.isArray(val)) {\n\t        val = [val];\n\t      }\n\t\n\t      utils.forEach(val, function parseValue(v) {\n\t        if (utils.isDate(v)) {\n\t          v = v.toISOString();\n\t        } else if (utils.isObject(v)) {\n\t          v = JSON.stringify(v);\n\t        }\n\t        parts.push(encode(key) + '=' + encode(v));\n\t      });\n\t    });\n\t\n\t    serializedParams = parts.join('&');\n\t  }\n\t\n\t  if (serializedParams) {\n\t    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;\n\t  }\n\t\n\t  return url;\n\t};\n\n\n/***/ }),\n/* 13 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar utils = __webpack_require__(2);\n\t\n\t// Headers whose duplicates are ignored by node\n\t// c.f. https://nodejs.org/api/http.html#http_message_headers\n\tvar ignoreDuplicateOf = [\n\t  'age', 'authorization', 'content-length', 'content-type', 'etag',\n\t  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',\n\t  'last-modified', 'location', 'max-forwards', 'proxy-authorization',\n\t  'referer', 'retry-after', 'user-agent'\n\t];\n\t\n\t/**\n\t * Parse headers into an object\n\t *\n\t * ```\n\t * Date: Wed, 27 Aug 2014 08:58:49 GMT\n\t * Content-Type: application/json\n\t * Connection: keep-alive\n\t * Transfer-Encoding: chunked\n\t * ```\n\t *\n\t * @param {String} headers Headers needing to be parsed\n\t * @returns {Object} Headers parsed into an object\n\t */\n\tmodule.exports = function parseHeaders(headers) {\n\t  var parsed = {};\n\t  var key;\n\t  var val;\n\t  var i;\n\t\n\t  if (!headers) { return parsed; }\n\t\n\t  utils.forEach(headers.split('\\n'), function parser(line) {\n\t    i = line.indexOf(':');\n\t    key = utils.trim(line.substr(0, i)).toLowerCase();\n\t    val = utils.trim(line.substr(i + 1));\n\t\n\t    if (key) {\n\t      if (parsed[key] && ignoreDuplicateOf.indexOf(key) >= 0) {\n\t        return;\n\t      }\n\t      if (key === 'set-cookie') {\n\t        parsed[key] = (parsed[key] ? parsed[key] : []).concat([val]);\n\t      } else {\n\t        parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n\t      }\n\t    }\n\t  });\n\t\n\t  return parsed;\n\t};\n\n\n/***/ }),\n/* 14 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar utils = __webpack_require__(2);\n\t\n\tmodule.exports = (\n\t  utils.isStandardBrowserEnv() ?\n\t\n\t  // Standard browser envs have full support of the APIs needed to test\n\t  // whether the request URL is of the same origin as current location.\n\t  (function standardBrowserEnv() {\n\t    var msie = /(msie|trident)/i.test(navigator.userAgent);\n\t    var urlParsingNode = document.createElement('a');\n\t    var originURL;\n\t\n\t    /**\n\t    * Parse a URL to discover it's components\n\t    *\n\t    * @param {String} url The URL to be parsed\n\t    * @returns {Object}\n\t    */\n\t    function resolveURL(url) {\n\t      var href = url;\n\t\n\t      if (msie) {\n\t        // IE needs attribute set twice to normalize properties\n\t        urlParsingNode.setAttribute('href', href);\n\t        href = urlParsingNode.href;\n\t      }\n\t\n\t      urlParsingNode.setAttribute('href', href);\n\t\n\t      // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils\n\t      return {\n\t        href: urlParsingNode.href,\n\t        protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',\n\t        host: urlParsingNode.host,\n\t        search: urlParsingNode.search ? urlParsingNode.search.replace(/^\\?/, '') : '',\n\t        hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',\n\t        hostname: urlParsingNode.hostname,\n\t        port: urlParsingNode.port,\n\t        pathname: (urlParsingNode.pathname.charAt(0) === '/') ?\n\t                  urlParsingNode.pathname :\n\t                  '/' + urlParsingNode.pathname\n\t      };\n\t    }\n\t\n\t    originURL = resolveURL(window.location.href);\n\t\n\t    /**\n\t    * Determine if a URL shares the same origin as the current location\n\t    *\n\t    * @param {String} requestURL The URL to test\n\t    * @returns {boolean} True if URL shares the same origin, otherwise false\n\t    */\n\t    return function isURLSameOrigin(requestURL) {\n\t      var parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL;\n\t      return (parsed.protocol === originURL.protocol &&\n\t            parsed.host === originURL.host);\n\t    };\n\t  })() :\n\t\n\t  // Non standard browser envs (web workers, react-native) lack needed support.\n\t  (function nonStandardBrowserEnv() {\n\t    return function isURLSameOrigin() {\n\t      return true;\n\t    };\n\t  })()\n\t);\n\n\n/***/ }),\n/* 15 */\n/***/ (function(module, exports) {\n\n\t'use strict';\n\t\n\t// btoa polyfill for IE<10 courtesy https://github.com/davidchambers/Base64.js\n\t\n\tvar chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';\n\t\n\tfunction E() {\n\t  this.message = 'String contains an invalid character';\n\t}\n\tE.prototype = new Error;\n\tE.prototype.code = 5;\n\tE.prototype.name = 'InvalidCharacterError';\n\t\n\tfunction btoa(input) {\n\t  var str = String(input);\n\t  var output = '';\n\t  for (\n\t    // initialize result and counter\n\t    var block, charCode, idx = 0, map = chars;\n\t    // if the next str index does not exist:\n\t    //   change the mapping table to \"=\"\n\t    //   check if d has no fractional digits\n\t    str.charAt(idx | 0) || (map = '=', idx % 1);\n\t    // \"8 - idx % 1 * 8\" generates the sequence 2, 4, 6, 8\n\t    output += map.charAt(63 & block >> 8 - idx % 1 * 8)\n\t  ) {\n\t    charCode = str.charCodeAt(idx += 3 / 4);\n\t    if (charCode > 0xFF) {\n\t      throw new E();\n\t    }\n\t    block = block << 8 | charCode;\n\t  }\n\t  return output;\n\t}\n\t\n\tmodule.exports = btoa;\n\n\n/***/ }),\n/* 16 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar utils = __webpack_require__(2);\n\t\n\tmodule.exports = (\n\t  utils.isStandardBrowserEnv() ?\n\t\n\t  // Standard browser envs support document.cookie\n\t  (function standardBrowserEnv() {\n\t    return {\n\t      write: function write(name, value, expires, path, domain, secure) {\n\t        var cookie = [];\n\t        cookie.push(name + '=' + encodeURIComponent(value));\n\t\n\t        if (utils.isNumber(expires)) {\n\t          cookie.push('expires=' + new Date(expires).toGMTString());\n\t        }\n\t\n\t        if (utils.isString(path)) {\n\t          cookie.push('path=' + path);\n\t        }\n\t\n\t        if (utils.isString(domain)) {\n\t          cookie.push('domain=' + domain);\n\t        }\n\t\n\t        if (secure === true) {\n\t          cookie.push('secure');\n\t        }\n\t\n\t        document.cookie = cookie.join('; ');\n\t      },\n\t\n\t      read: function read(name) {\n\t        var match = document.cookie.match(new RegExp('(^|;\\\\s*)(' + name + ')=([^;]*)'));\n\t        return (match ? decodeURIComponent(match[3]) : null);\n\t      },\n\t\n\t      remove: function remove(name) {\n\t        this.write(name, '', Date.now() - 86400000);\n\t      }\n\t    };\n\t  })() :\n\t\n\t  // Non standard browser env (web workers, react-native) lack needed support.\n\t  (function nonStandardBrowserEnv() {\n\t    return {\n\t      write: function write() {},\n\t      read: function read() { return null; },\n\t      remove: function remove() {}\n\t    };\n\t  })()\n\t);\n\n\n/***/ }),\n/* 17 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar utils = __webpack_require__(2);\n\t\n\tfunction InterceptorManager() {\n\t  this.handlers = [];\n\t}\n\t\n\t/**\n\t * Add a new interceptor to the stack\n\t *\n\t * @param {Function} fulfilled The function to handle `then` for a `Promise`\n\t * @param {Function} rejected The function to handle `reject` for a `Promise`\n\t *\n\t * @return {Number} An ID used to remove interceptor later\n\t */\n\tInterceptorManager.prototype.use = function use(fulfilled, rejected) {\n\t  this.handlers.push({\n\t    fulfilled: fulfilled,\n\t    rejected: rejected\n\t  });\n\t  return this.handlers.length - 1;\n\t};\n\t\n\t/**\n\t * Remove an interceptor from the stack\n\t *\n\t * @param {Number} id The ID that was returned by `use`\n\t */\n\tInterceptorManager.prototype.eject = function eject(id) {\n\t  if (this.handlers[id]) {\n\t    this.handlers[id] = null;\n\t  }\n\t};\n\t\n\t/**\n\t * Iterate over all the registered interceptors\n\t *\n\t * This method is particularly useful for skipping over any\n\t * interceptors that may have become `null` calling `eject`.\n\t *\n\t * @param {Function} fn The function to call for each interceptor\n\t */\n\tInterceptorManager.prototype.forEach = function forEach(fn) {\n\t  utils.forEach(this.handlers, function forEachHandler(h) {\n\t    if (h !== null) {\n\t      fn(h);\n\t    }\n\t  });\n\t};\n\t\n\tmodule.exports = InterceptorManager;\n\n\n/***/ }),\n/* 18 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar utils = __webpack_require__(2);\n\tvar transformData = __webpack_require__(19);\n\tvar isCancel = __webpack_require__(20);\n\tvar defaults = __webpack_require__(6);\n\tvar isAbsoluteURL = __webpack_require__(21);\n\tvar combineURLs = __webpack_require__(22);\n\t\n\t/**\n\t * Throws a `Cancel` if cancellation has been requested.\n\t */\n\tfunction throwIfCancellationRequested(config) {\n\t  if (config.cancelToken) {\n\t    config.cancelToken.throwIfRequested();\n\t  }\n\t}\n\t\n\t/**\n\t * Dispatch a request to the server using the configured adapter.\n\t *\n\t * @param {object} config The config that is to be used for the request\n\t * @returns {Promise} The Promise to be fulfilled\n\t */\n\tmodule.exports = function dispatchRequest(config) {\n\t  throwIfCancellationRequested(config);\n\t\n\t  // Support baseURL config\n\t  if (config.baseURL && !isAbsoluteURL(config.url)) {\n\t    config.url = combineURLs(config.baseURL, config.url);\n\t  }\n\t\n\t  // Ensure headers exist\n\t  config.headers = config.headers || {};\n\t\n\t  // Transform request data\n\t  config.data = transformData(\n\t    config.data,\n\t    config.headers,\n\t    config.transformRequest\n\t  );\n\t\n\t  // Flatten headers\n\t  config.headers = utils.merge(\n\t    config.headers.common || {},\n\t    config.headers[config.method] || {},\n\t    config.headers || {}\n\t  );\n\t\n\t  utils.forEach(\n\t    ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],\n\t    function cleanHeaderConfig(method) {\n\t      delete config.headers[method];\n\t    }\n\t  );\n\t\n\t  var adapter = config.adapter || defaults.adapter;\n\t\n\t  return adapter(config).then(function onAdapterResolution(response) {\n\t    throwIfCancellationRequested(config);\n\t\n\t    // Transform response data\n\t    response.data = transformData(\n\t      response.data,\n\t      response.headers,\n\t      config.transformResponse\n\t    );\n\t\n\t    return response;\n\t  }, function onAdapterRejection(reason) {\n\t    if (!isCancel(reason)) {\n\t      throwIfCancellationRequested(config);\n\t\n\t      // Transform response data\n\t      if (reason && reason.response) {\n\t        reason.response.data = transformData(\n\t          reason.response.data,\n\t          reason.response.headers,\n\t          config.transformResponse\n\t        );\n\t      }\n\t    }\n\t\n\t    return Promise.reject(reason);\n\t  });\n\t};\n\n\n/***/ }),\n/* 19 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar utils = __webpack_require__(2);\n\t\n\t/**\n\t * Transform the data for a request or a response\n\t *\n\t * @param {Object|String} data The data to be transformed\n\t * @param {Array} headers The headers for the request or response\n\t * @param {Array|Function} fns A single function or Array of functions\n\t * @returns {*} The resulting transformed data\n\t */\n\tmodule.exports = function transformData(data, headers, fns) {\n\t  /*eslint no-param-reassign:0*/\n\t  utils.forEach(fns, function transform(fn) {\n\t    data = fn(data, headers);\n\t  });\n\t\n\t  return data;\n\t};\n\n\n/***/ }),\n/* 20 */\n/***/ (function(module, exports) {\n\n\t'use strict';\n\t\n\tmodule.exports = function isCancel(value) {\n\t  return !!(value && value.__CANCEL__);\n\t};\n\n\n/***/ }),\n/* 21 */\n/***/ (function(module, exports) {\n\n\t'use strict';\n\t\n\t/**\n\t * Determines whether the specified URL is absolute\n\t *\n\t * @param {string} url The URL to test\n\t * @returns {boolean} True if the specified URL is absolute, otherwise false\n\t */\n\tmodule.exports = function isAbsoluteURL(url) {\n\t  // A URL is considered absolute if it begins with \"<scheme>://\" or \"//\" (protocol-relative URL).\n\t  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed\n\t  // by any combination of letters, digits, plus, period, or hyphen.\n\t  return /^([a-z][a-z\\d\\+\\-\\.]*:)?\\/\\//i.test(url);\n\t};\n\n\n/***/ }),\n/* 22 */\n/***/ (function(module, exports) {\n\n\t'use strict';\n\t\n\t/**\n\t * Creates a new URL by combining the specified URLs\n\t *\n\t * @param {string} baseURL The base URL\n\t * @param {string} relativeURL The relative URL\n\t * @returns {string} The combined URL\n\t */\n\tmodule.exports = function combineURLs(baseURL, relativeURL) {\n\t  return relativeURL\n\t    ? baseURL.replace(/\\/+$/, '') + '/' + relativeURL.replace(/^\\/+/, '')\n\t    : baseURL;\n\t};\n\n\n/***/ }),\n/* 23 */\n/***/ (function(module, exports) {\n\n\t'use strict';\n\t\n\t/**\n\t * A `Cancel` is an object that is thrown when an operation is canceled.\n\t *\n\t * @class\n\t * @param {string=} message The message.\n\t */\n\tfunction Cancel(message) {\n\t  this.message = message;\n\t}\n\t\n\tCancel.prototype.toString = function toString() {\n\t  return 'Cancel' + (this.message ? ': ' + this.message : '');\n\t};\n\t\n\tCancel.prototype.__CANCEL__ = true;\n\t\n\tmodule.exports = Cancel;\n\n\n/***/ }),\n/* 24 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar Cancel = __webpack_require__(23);\n\t\n\t/**\n\t * A `CancelToken` is an object that can be used to request cancellation of an operation.\n\t *\n\t * @class\n\t * @param {Function} executor The executor function.\n\t */\n\tfunction CancelToken(executor) {\n\t  if (typeof executor !== 'function') {\n\t    throw new TypeError('executor must be a function.');\n\t  }\n\t\n\t  var resolvePromise;\n\t  this.promise = new Promise(function promiseExecutor(resolve) {\n\t    resolvePromise = resolve;\n\t  });\n\t\n\t  var token = this;\n\t  executor(function cancel(message) {\n\t    if (token.reason) {\n\t      // Cancellation has already been requested\n\t      return;\n\t    }\n\t\n\t    token.reason = new Cancel(message);\n\t    resolvePromise(token.reason);\n\t  });\n\t}\n\t\n\t/**\n\t * Throws a `Cancel` if cancellation has been requested.\n\t */\n\tCancelToken.prototype.throwIfRequested = function throwIfRequested() {\n\t  if (this.reason) {\n\t    throw this.reason;\n\t  }\n\t};\n\t\n\t/**\n\t * Returns an object that contains a new `CancelToken` and a function that, when called,\n\t * cancels the `CancelToken`.\n\t */\n\tCancelToken.source = function source() {\n\t  var cancel;\n\t  var token = new CancelToken(function executor(c) {\n\t    cancel = c;\n\t  });\n\t  return {\n\t    token: token,\n\t    cancel: cancel\n\t  };\n\t};\n\t\n\tmodule.exports = CancelToken;\n\n\n/***/ }),\n/* 25 */\n/***/ (function(module, exports) {\n\n\t'use strict';\n\t\n\t/**\n\t * Syntactic sugar for invoking a function and expanding an array for arguments.\n\t *\n\t * Common use case would be to use `Function.prototype.apply`.\n\t *\n\t *  ```js\n\t *  function f(x, y, z) {}\n\t *  var args = [1, 2, 3];\n\t *  f.apply(null, args);\n\t *  ```\n\t *\n\t * With `spread` this example can be re-written.\n\t *\n\t *  ```js\n\t *  spread(function(x, y, z) {})([1, 2, 3]);\n\t *  ```\n\t *\n\t * @param {Function} callback\n\t * @returns {Function}\n\t */\n\tmodule.exports = function spread(callback) {\n\t  return function wrap(arr) {\n\t    return callback.apply(null, arr);\n\t  };\n\t};\n\n\n/***/ })\n/******/ ])\n});\n;\n\n\n// WEBPACK FOOTER //\n// axios.min.js"," \t// The module cache\n \tvar installedModules = {};\n\n \t// The require function\n \tfunction __webpack_require__(moduleId) {\n\n \t\t// Check if module is in cache\n \t\tif(installedModules[moduleId])\n \t\t\treturn installedModules[moduleId].exports;\n\n \t\t// Create a new module (and put it into the cache)\n \t\tvar module = installedModules[moduleId] = {\n \t\t\texports: {},\n \t\t\tid: moduleId,\n \t\t\tloaded: false\n \t\t};\n\n \t\t// Execute the module function\n \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n \t\t// Flag the module as loaded\n \t\tmodule.loaded = true;\n\n \t\t// Return the exports of the module\n \t\treturn module.exports;\n \t}\n\n\n \t// expose the modules object (__webpack_modules__)\n \t__webpack_require__.m = modules;\n\n \t// expose the module cache\n \t__webpack_require__.c = installedModules;\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(0);\n\n\n\n// WEBPACK FOOTER //\n// webpack/bootstrap 99abf9ea5c2f99fe227c","module.exports = require('./lib/axios');\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./index.js\n// module id = 0\n// module chunks = 0","'use strict';\n\nvar utils = require('./utils');\nvar bind = require('./helpers/bind');\nvar Axios = require('./core/Axios');\nvar defaults = require('./defaults');\n\n/**\n * Create an instance of Axios\n *\n * @param {Object} defaultConfig The default config for the instance\n * @return {Axios} A new instance of Axios\n */\nfunction createInstance(defaultConfig) {\n  var context = new Axios(defaultConfig);\n  var instance = bind(Axios.prototype.request, context);\n\n  // Copy axios.prototype to instance\n  utils.extend(instance, Axios.prototype, context);\n\n  // Copy context to instance\n  utils.extend(instance, context);\n\n  return instance;\n}\n\n// Create the default instance to be exported\nvar axios = createInstance(defaults);\n\n// Expose Axios class to allow class inheritance\naxios.Axios = Axios;\n\n// Factory for creating new instances\naxios.create = function create(instanceConfig) {\n  return createInstance(utils.merge(defaults, instanceConfig));\n};\n\n// Expose Cancel & CancelToken\naxios.Cancel = require('./cancel/Cancel');\naxios.CancelToken = require('./cancel/CancelToken');\naxios.isCancel = require('./cancel/isCancel');\n\n// Expose all/spread\naxios.all = function all(promises) {\n  return Promise.all(promises);\n};\naxios.spread = require('./helpers/spread');\n\nmodule.exports = axios;\n\n// Allow use of default import syntax in TypeScript\nmodule.exports.default = axios;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/axios.js\n// module id = 1\n// module chunks = 0","'use strict';\n\nvar bind = require('./helpers/bind');\nvar isBuffer = require('is-buffer');\n\n/*global toString:true*/\n\n// utils is a library of generic helper functions non-specific to axios\n\nvar toString = Object.prototype.toString;\n\n/**\n * Determine if a value is an Array\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is an Array, otherwise false\n */\nfunction isArray(val) {\n  return toString.call(val) === '[object Array]';\n}\n\n/**\n * Determine if a value is an ArrayBuffer\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is an ArrayBuffer, otherwise false\n */\nfunction isArrayBuffer(val) {\n  return toString.call(val) === '[object ArrayBuffer]';\n}\n\n/**\n * Determine if a value is a FormData\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is an FormData, otherwise false\n */\nfunction isFormData(val) {\n  return (typeof FormData !== 'undefined') && (val instanceof FormData);\n}\n\n/**\n * Determine if a value is a view on an ArrayBuffer\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false\n */\nfunction isArrayBufferView(val) {\n  var result;\n  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {\n    result = ArrayBuffer.isView(val);\n  } else {\n    result = (val) && (val.buffer) && (val.buffer instanceof ArrayBuffer);\n  }\n  return result;\n}\n\n/**\n * Determine if a value is a String\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a String, otherwise false\n */\nfunction isString(val) {\n  return typeof val === 'string';\n}\n\n/**\n * Determine if a value is a Number\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a Number, otherwise false\n */\nfunction isNumber(val) {\n  return typeof val === 'number';\n}\n\n/**\n * Determine if a value is undefined\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if the value is undefined, otherwise false\n */\nfunction isUndefined(val) {\n  return typeof val === 'undefined';\n}\n\n/**\n * Determine if a value is an Object\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is an Object, otherwise false\n */\nfunction isObject(val) {\n  return val !== null && typeof val === 'object';\n}\n\n/**\n * Determine if a value is a Date\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a Date, otherwise false\n */\nfunction isDate(val) {\n  return toString.call(val) === '[object Date]';\n}\n\n/**\n * Determine if a value is a File\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a File, otherwise false\n */\nfunction isFile(val) {\n  return toString.call(val) === '[object File]';\n}\n\n/**\n * Determine if a value is a Blob\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a Blob, otherwise false\n */\nfunction isBlob(val) {\n  return toString.call(val) === '[object Blob]';\n}\n\n/**\n * Determine if a value is a Function\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a Function, otherwise false\n */\nfunction isFunction(val) {\n  return toString.call(val) === '[object Function]';\n}\n\n/**\n * Determine if a value is a Stream\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a Stream, otherwise false\n */\nfunction isStream(val) {\n  return isObject(val) && isFunction(val.pipe);\n}\n\n/**\n * Determine if a value is a URLSearchParams object\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a URLSearchParams object, otherwise false\n */\nfunction isURLSearchParams(val) {\n  return typeof URLSearchParams !== 'undefined' && val instanceof URLSearchParams;\n}\n\n/**\n * Trim excess whitespace off the beginning and end of a string\n *\n * @param {String} str The String to trim\n * @returns {String} The String freed of excess whitespace\n */\nfunction trim(str) {\n  return str.replace(/^\\s*/, '').replace(/\\s*$/, '');\n}\n\n/**\n * Determine if we're running in a standard browser environment\n *\n * This allows axios to run in a web worker, and react-native.\n * Both environments support XMLHttpRequest, but not fully standard globals.\n *\n * web workers:\n *  typeof window -> undefined\n *  typeof document -> undefined\n *\n * react-native:\n *  navigator.product -> 'ReactNative'\n */\nfunction isStandardBrowserEnv() {\n  if (typeof navigator !== 'undefined' && navigator.product === 'ReactNative') {\n    return false;\n  }\n  return (\n    typeof window !== 'undefined' &&\n    typeof document !== 'undefined'\n  );\n}\n\n/**\n * Iterate over an Array or an Object invoking a function for each item.\n *\n * If `obj` is an Array callback will be called passing\n * the value, index, and complete array for each item.\n *\n * If 'obj' is an Object callback will be called passing\n * the value, key, and complete object for each property.\n *\n * @param {Object|Array} obj The object to iterate\n * @param {Function} fn The callback to invoke for each item\n */\nfunction forEach(obj, fn) {\n  // Don't bother if no value provided\n  if (obj === null || typeof obj === 'undefined') {\n    return;\n  }\n\n  // Force an array if not already something iterable\n  if (typeof obj !== 'object') {\n    /*eslint no-param-reassign:0*/\n    obj = [obj];\n  }\n\n  if (isArray(obj)) {\n    // Iterate over array values\n    for (var i = 0, l = obj.length; i < l; i++) {\n      fn.call(null, obj[i], i, obj);\n    }\n  } else {\n    // Iterate over object keys\n    for (var key in obj) {\n      if (Object.prototype.hasOwnProperty.call(obj, key)) {\n        fn.call(null, obj[key], key, obj);\n      }\n    }\n  }\n}\n\n/**\n * Accepts varargs expecting each argument to be an object, then\n * immutably merges the properties of each object and returns result.\n *\n * When multiple objects contain the same key the later object in\n * the arguments list will take precedence.\n *\n * Example:\n *\n * ```js\n * var result = merge({foo: 123}, {foo: 456});\n * console.log(result.foo); // outputs 456\n * ```\n *\n * @param {Object} obj1 Object to merge\n * @returns {Object} Result of all merge properties\n */\nfunction merge(/* obj1, obj2, obj3, ... */) {\n  var result = {};\n  function assignValue(val, key) {\n    if (typeof result[key] === 'object' && typeof val === 'object') {\n      result[key] = merge(result[key], val);\n    } else {\n      result[key] = val;\n    }\n  }\n\n  for (var i = 0, l = arguments.length; i < l; i++) {\n    forEach(arguments[i], assignValue);\n  }\n  return result;\n}\n\n/**\n * Extends object a by mutably adding to it the properties of object b.\n *\n * @param {Object} a The object to be extended\n * @param {Object} b The object to copy properties from\n * @param {Object} thisArg The object to bind function to\n * @return {Object} The resulting value of object a\n */\nfunction extend(a, b, thisArg) {\n  forEach(b, function assignValue(val, key) {\n    if (thisArg && typeof val === 'function') {\n      a[key] = bind(val, thisArg);\n    } else {\n      a[key] = val;\n    }\n  });\n  return a;\n}\n\nmodule.exports = {\n  isArray: isArray,\n  isArrayBuffer: isArrayBuffer,\n  isBuffer: isBuffer,\n  isFormData: isFormData,\n  isArrayBufferView: isArrayBufferView,\n  isString: isString,\n  isNumber: isNumber,\n  isObject: isObject,\n  isUndefined: isUndefined,\n  isDate: isDate,\n  isFile: isFile,\n  isBlob: isBlob,\n  isFunction: isFunction,\n  isStream: isStream,\n  isURLSearchParams: isURLSearchParams,\n  isStandardBrowserEnv: isStandardBrowserEnv,\n  forEach: forEach,\n  merge: merge,\n  extend: extend,\n  trim: trim\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/utils.js\n// module id = 2\n// module chunks = 0","'use strict';\n\nmodule.exports = function bind(fn, thisArg) {\n  return function wrap() {\n    var args = new Array(arguments.length);\n    for (var i = 0; i < args.length; i++) {\n      args[i] = arguments[i];\n    }\n    return fn.apply(thisArg, args);\n  };\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/bind.js\n// module id = 3\n// module chunks = 0","/*!\n * Determine if an object is a Buffer\n *\n * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>\n * @license  MIT\n */\n\n// The _isBuffer check is for Safari 5-7 support, because it's missing\n// Object.prototype.constructor. Remove this eventually\nmodule.exports = function (obj) {\n  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)\n}\n\nfunction isBuffer (obj) {\n  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)\n}\n\n// For Node v0.10 support. Remove this eventually.\nfunction isSlowBuffer (obj) {\n  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/is-buffer/index.js\n// module id = 4\n// module chunks = 0","'use strict';\n\nvar defaults = require('./../defaults');\nvar utils = require('./../utils');\nvar InterceptorManager = require('./InterceptorManager');\nvar dispatchRequest = require('./dispatchRequest');\n\n/**\n * Create a new instance of Axios\n *\n * @param {Object} instanceConfig The default config for the instance\n */\nfunction Axios(instanceConfig) {\n  this.defaults = instanceConfig;\n  this.interceptors = {\n    request: new InterceptorManager(),\n    response: new InterceptorManager()\n  };\n}\n\n/**\n * Dispatch a request\n *\n * @param {Object} config The config specific for this request (merged with this.defaults)\n */\nAxios.prototype.request = function request(config) {\n  /*eslint no-param-reassign:0*/\n  // Allow for axios('example/url'[, config]) a la fetch API\n  if (typeof config === 'string') {\n    config = utils.merge({\n      url: arguments[0]\n    }, arguments[1]);\n  }\n\n  config = utils.merge(defaults, this.defaults, { method: 'get' }, config);\n  config.method = config.method.toLowerCase();\n\n  // Hook up interceptors middleware\n  var chain = [dispatchRequest, undefined];\n  var promise = Promise.resolve(config);\n\n  this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {\n    chain.unshift(interceptor.fulfilled, interceptor.rejected);\n  });\n\n  this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {\n    chain.push(interceptor.fulfilled, interceptor.rejected);\n  });\n\n  while (chain.length) {\n    promise = promise.then(chain.shift(), chain.shift());\n  }\n\n  return promise;\n};\n\n// Provide aliases for supported request methods\nutils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {\n  /*eslint func-names:0*/\n  Axios.prototype[method] = function(url, config) {\n    return this.request(utils.merge(config || {}, {\n      method: method,\n      url: url\n    }));\n  };\n});\n\nutils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {\n  /*eslint func-names:0*/\n  Axios.prototype[method] = function(url, data, config) {\n    return this.request(utils.merge(config || {}, {\n      method: method,\n      url: url,\n      data: data\n    }));\n  };\n});\n\nmodule.exports = Axios;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/core/Axios.js\n// module id = 5\n// module chunks = 0","'use strict';\n\nvar utils = require('./utils');\nvar normalizeHeaderName = require('./helpers/normalizeHeaderName');\n\nvar DEFAULT_CONTENT_TYPE = {\n  'Content-Type': 'application/x-www-form-urlencoded'\n};\n\nfunction setContentTypeIfUnset(headers, value) {\n  if (!utils.isUndefined(headers) && utils.isUndefined(headers['Content-Type'])) {\n    headers['Content-Type'] = value;\n  }\n}\n\nfunction getDefaultAdapter() {\n  var adapter;\n  if (typeof XMLHttpRequest !== 'undefined') {\n    // For browsers use XHR adapter\n    adapter = require('./adapters/xhr');\n  } else if (typeof process !== 'undefined') {\n    // For node use HTTP adapter\n    adapter = require('./adapters/http');\n  }\n  return adapter;\n}\n\nvar defaults = {\n  adapter: getDefaultAdapter(),\n\n  transformRequest: [function transformRequest(data, headers) {\n    normalizeHeaderName(headers, 'Content-Type');\n    if (utils.isFormData(data) ||\n      utils.isArrayBuffer(data) ||\n      utils.isBuffer(data) ||\n      utils.isStream(data) ||\n      utils.isFile(data) ||\n      utils.isBlob(data)\n    ) {\n      return data;\n    }\n    if (utils.isArrayBufferView(data)) {\n      return data.buffer;\n    }\n    if (utils.isURLSearchParams(data)) {\n      setContentTypeIfUnset(headers, 'application/x-www-form-urlencoded;charset=utf-8');\n      return data.toString();\n    }\n    if (utils.isObject(data)) {\n      setContentTypeIfUnset(headers, 'application/json;charset=utf-8');\n      return JSON.stringify(data);\n    }\n    return data;\n  }],\n\n  transformResponse: [function transformResponse(data) {\n    /*eslint no-param-reassign:0*/\n    if (typeof data === 'string') {\n      try {\n        data = JSON.parse(data);\n      } catch (e) { /* Ignore */ }\n    }\n    return data;\n  }],\n\n  timeout: 0,\n\n  xsrfCookieName: 'XSRF-TOKEN',\n  xsrfHeaderName: 'X-XSRF-TOKEN',\n\n  maxContentLength: -1,\n\n  validateStatus: function validateStatus(status) {\n    return status >= 200 && status < 300;\n  }\n};\n\ndefaults.headers = {\n  common: {\n    'Accept': 'application/json, text/plain, */*'\n  }\n};\n\nutils.forEach(['delete', 'get', 'head'], function forEachMethodNoData(method) {\n  defaults.headers[method] = {};\n});\n\nutils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {\n  defaults.headers[method] = utils.merge(DEFAULT_CONTENT_TYPE);\n});\n\nmodule.exports = defaults;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/defaults.js\n// module id = 6\n// module chunks = 0","'use strict';\n\nvar utils = require('../utils');\n\nmodule.exports = function normalizeHeaderName(headers, normalizedName) {\n  utils.forEach(headers, function processHeader(value, name) {\n    if (name !== normalizedName && name.toUpperCase() === normalizedName.toUpperCase()) {\n      headers[normalizedName] = value;\n      delete headers[name];\n    }\n  });\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/normalizeHeaderName.js\n// module id = 7\n// module chunks = 0","'use strict';\n\nvar utils = require('./../utils');\nvar settle = require('./../core/settle');\nvar buildURL = require('./../helpers/buildURL');\nvar parseHeaders = require('./../helpers/parseHeaders');\nvar isURLSameOrigin = require('./../helpers/isURLSameOrigin');\nvar createError = require('../core/createError');\nvar btoa = (typeof window !== 'undefined' && window.btoa && window.btoa.bind(window)) || require('./../helpers/btoa');\n\nmodule.exports = function xhrAdapter(config) {\n  return new Promise(function dispatchXhrRequest(resolve, reject) {\n    var requestData = config.data;\n    var requestHeaders = config.headers;\n\n    if (utils.isFormData(requestData)) {\n      delete requestHeaders['Content-Type']; // Let the browser set it\n    }\n\n    var request = new XMLHttpRequest();\n    var loadEvent = 'onreadystatechange';\n    var xDomain = false;\n\n    // For IE 8/9 CORS support\n    // Only supports POST and GET calls and doesn't returns the response headers.\n    // DON'T do this for testing b/c XMLHttpRequest is mocked, not XDomainRequest.\n    if (process.env.NODE_ENV !== 'test' &&\n        typeof window !== 'undefined' &&\n        window.XDomainRequest && !('withCredentials' in request) &&\n        !isURLSameOrigin(config.url)) {\n      request = new window.XDomainRequest();\n      loadEvent = 'onload';\n      xDomain = true;\n      request.onprogress = function handleProgress() {};\n      request.ontimeout = function handleTimeout() {};\n    }\n\n    // HTTP basic authentication\n    if (config.auth) {\n      var username = config.auth.username || '';\n      var password = config.auth.password || '';\n      requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password);\n    }\n\n    request.open(config.method.toUpperCase(), buildURL(config.url, config.params, config.paramsSerializer), true);\n\n    // Set the request timeout in MS\n    request.timeout = config.timeout;\n\n    // Listen for ready state\n    request[loadEvent] = function handleLoad() {\n      if (!request || (request.readyState !== 4 && !xDomain)) {\n        return;\n      }\n\n      // The request errored out and we didn't get a response, this will be\n      // handled by onerror instead\n      // With one exception: request that using file: protocol, most browsers\n      // will return status as 0 even though it's a successful request\n      if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {\n        return;\n      }\n\n      // Prepare the response\n      var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null;\n      var responseData = !config.responseType || config.responseType === 'text' ? request.responseText : request.response;\n      var response = {\n        data: responseData,\n        // IE sends 1223 instead of 204 (https://github.com/axios/axios/issues/201)\n        status: request.status === 1223 ? 204 : request.status,\n        statusText: request.status === 1223 ? 'No Content' : request.statusText,\n        headers: responseHeaders,\n        config: config,\n        request: request\n      };\n\n      settle(resolve, reject, response);\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle low level network errors\n    request.onerror = function handleError() {\n      // Real errors are hidden from us by the browser\n      // onerror should only fire if it's a network error\n      reject(createError('Network Error', config, null, request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle timeout\n    request.ontimeout = function handleTimeout() {\n      reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED',\n        request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Add xsrf header\n    // This is only done if running in a standard browser environment.\n    // Specifically not if we're in a web worker, or react-native.\n    if (utils.isStandardBrowserEnv()) {\n      var cookies = require('./../helpers/cookies');\n\n      // Add xsrf header\n      var xsrfValue = (config.withCredentials || isURLSameOrigin(config.url)) && config.xsrfCookieName ?\n          cookies.read(config.xsrfCookieName) :\n          undefined;\n\n      if (xsrfValue) {\n        requestHeaders[config.xsrfHeaderName] = xsrfValue;\n      }\n    }\n\n    // Add headers to the request\n    if ('setRequestHeader' in request) {\n      utils.forEach(requestHeaders, function setRequestHeader(val, key) {\n        if (typeof requestData === 'undefined' && key.toLowerCase() === 'content-type') {\n          // Remove Content-Type if data is undefined\n          delete requestHeaders[key];\n        } else {\n          // Otherwise add header to the request\n          request.setRequestHeader(key, val);\n        }\n      });\n    }\n\n    // Add withCredentials to request if needed\n    if (config.withCredentials) {\n      request.withCredentials = true;\n    }\n\n    // Add responseType to request if needed\n    if (config.responseType) {\n      try {\n        request.responseType = config.responseType;\n      } catch (e) {\n        // Expected DOMException thrown by browsers not compatible XMLHttpRequest Level 2.\n        // But, this can be suppressed for 'json' type as it can be parsed by default 'transformResponse' function.\n        if (config.responseType !== 'json') {\n          throw e;\n        }\n      }\n    }\n\n    // Handle progress if needed\n    if (typeof config.onDownloadProgress === 'function') {\n      request.addEventListener('progress', config.onDownloadProgress);\n    }\n\n    // Not all browsers support upload events\n    if (typeof config.onUploadProgress === 'function' && request.upload) {\n      request.upload.addEventListener('progress', config.onUploadProgress);\n    }\n\n    if (config.cancelToken) {\n      // Handle cancellation\n      config.cancelToken.promise.then(function onCanceled(cancel) {\n        if (!request) {\n          return;\n        }\n\n        request.abort();\n        reject(cancel);\n        // Clean up request\n        request = null;\n      });\n    }\n\n    if (requestData === undefined) {\n      requestData = null;\n    }\n\n    // Send the request\n    request.send(requestData);\n  });\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/adapters/xhr.js\n// module id = 8\n// module chunks = 0","'use strict';\n\nvar createError = require('./createError');\n\n/**\n * Resolve or reject a Promise based on response status.\n *\n * @param {Function} resolve A function that resolves the promise.\n * @param {Function} reject A function that rejects the promise.\n * @param {object} response The response.\n */\nmodule.exports = function settle(resolve, reject, response) {\n  var validateStatus = response.config.validateStatus;\n  // Note: status is not exposed by XDomainRequest\n  if (!response.status || !validateStatus || validateStatus(response.status)) {\n    resolve(response);\n  } else {\n    reject(createError(\n      'Request failed with status code ' + response.status,\n      response.config,\n      null,\n      response.request,\n      response\n    ));\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/core/settle.js\n// module id = 9\n// module chunks = 0","'use strict';\n\nvar enhanceError = require('./enhanceError');\n\n/**\n * Create an Error with the specified message, config, error code, request and response.\n *\n * @param {string} message The error message.\n * @param {Object} config The config.\n * @param {string} [code] The error code (for example, 'ECONNABORTED').\n * @param {Object} [request] The request.\n * @param {Object} [response] The response.\n * @returns {Error} The created error.\n */\nmodule.exports = function createError(message, config, code, request, response) {\n  var error = new Error(message);\n  return enhanceError(error, config, code, request, response);\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/core/createError.js\n// module id = 10\n// module chunks = 0","'use strict';\n\n/**\n * Update an Error with the specified config, error code, and response.\n *\n * @param {Error} error The error to update.\n * @param {Object} config The config.\n * @param {string} [code] The error code (for example, 'ECONNABORTED').\n * @param {Object} [request] The request.\n * @param {Object} [response] The response.\n * @returns {Error} The error.\n */\nmodule.exports = function enhanceError(error, config, code, request, response) {\n  error.config = config;\n  if (code) {\n    error.code = code;\n  }\n  error.request = request;\n  error.response = response;\n  return error;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/core/enhanceError.js\n// module id = 11\n// module chunks = 0","'use strict';\n\nvar utils = require('./../utils');\n\nfunction encode(val) {\n  return encodeURIComponent(val).\n    replace(/%40/gi, '@').\n    replace(/%3A/gi, ':').\n    replace(/%24/g, '$').\n    replace(/%2C/gi, ',').\n    replace(/%20/g, '+').\n    replace(/%5B/gi, '[').\n    replace(/%5D/gi, ']');\n}\n\n/**\n * Build a URL by appending params to the end\n *\n * @param {string} url The base of the url (e.g., http://www.google.com)\n * @param {object} [params] The params to be appended\n * @returns {string} The formatted url\n */\nmodule.exports = function buildURL(url, params, paramsSerializer) {\n  /*eslint no-param-reassign:0*/\n  if (!params) {\n    return url;\n  }\n\n  var serializedParams;\n  if (paramsSerializer) {\n    serializedParams = paramsSerializer(params);\n  } else if (utils.isURLSearchParams(params)) {\n    serializedParams = params.toString();\n  } else {\n    var parts = [];\n\n    utils.forEach(params, function serialize(val, key) {\n      if (val === null || typeof val === 'undefined') {\n        return;\n      }\n\n      if (utils.isArray(val)) {\n        key = key + '[]';\n      }\n\n      if (!utils.isArray(val)) {\n        val = [val];\n      }\n\n      utils.forEach(val, function parseValue(v) {\n        if (utils.isDate(v)) {\n          v = v.toISOString();\n        } else if (utils.isObject(v)) {\n          v = JSON.stringify(v);\n        }\n        parts.push(encode(key) + '=' + encode(v));\n      });\n    });\n\n    serializedParams = parts.join('&');\n  }\n\n  if (serializedParams) {\n    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;\n  }\n\n  return url;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/buildURL.js\n// module id = 12\n// module chunks = 0","'use strict';\n\nvar utils = require('./../utils');\n\n// Headers whose duplicates are ignored by node\n// c.f. https://nodejs.org/api/http.html#http_message_headers\nvar ignoreDuplicateOf = [\n  'age', 'authorization', 'content-length', 'content-type', 'etag',\n  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',\n  'last-modified', 'location', 'max-forwards', 'proxy-authorization',\n  'referer', 'retry-after', 'user-agent'\n];\n\n/**\n * Parse headers into an object\n *\n * ```\n * Date: Wed, 27 Aug 2014 08:58:49 GMT\n * Content-Type: application/json\n * Connection: keep-alive\n * Transfer-Encoding: chunked\n * ```\n *\n * @param {String} headers Headers needing to be parsed\n * @returns {Object} Headers parsed into an object\n */\nmodule.exports = function parseHeaders(headers) {\n  var parsed = {};\n  var key;\n  var val;\n  var i;\n\n  if (!headers) { return parsed; }\n\n  utils.forEach(headers.split('\\n'), function parser(line) {\n    i = line.indexOf(':');\n    key = utils.trim(line.substr(0, i)).toLowerCase();\n    val = utils.trim(line.substr(i + 1));\n\n    if (key) {\n      if (parsed[key] && ignoreDuplicateOf.indexOf(key) >= 0) {\n        return;\n      }\n      if (key === 'set-cookie') {\n        parsed[key] = (parsed[key] ? parsed[key] : []).concat([val]);\n      } else {\n        parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n      }\n    }\n  });\n\n  return parsed;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/parseHeaders.js\n// module id = 13\n// module chunks = 0","'use strict';\n\nvar utils = require('./../utils');\n\nmodule.exports = (\n  utils.isStandardBrowserEnv() ?\n\n  // Standard browser envs have full support of the APIs needed to test\n  // whether the request URL is of the same origin as current location.\n  (function standardBrowserEnv() {\n    var msie = /(msie|trident)/i.test(navigator.userAgent);\n    var urlParsingNode = document.createElement('a');\n    var originURL;\n\n    /**\n    * Parse a URL to discover it's components\n    *\n    * @param {String} url The URL to be parsed\n    * @returns {Object}\n    */\n    function resolveURL(url) {\n      var href = url;\n\n      if (msie) {\n        // IE needs attribute set twice to normalize properties\n        urlParsingNode.setAttribute('href', href);\n        href = urlParsingNode.href;\n      }\n\n      urlParsingNode.setAttribute('href', href);\n\n      // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils\n      return {\n        href: urlParsingNode.href,\n        protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',\n        host: urlParsingNode.host,\n        search: urlParsingNode.search ? urlParsingNode.search.replace(/^\\?/, '') : '',\n        hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',\n        hostname: urlParsingNode.hostname,\n        port: urlParsingNode.port,\n        pathname: (urlParsingNode.pathname.charAt(0) === '/') ?\n                  urlParsingNode.pathname :\n                  '/' + urlParsingNode.pathname\n      };\n    }\n\n    originURL = resolveURL(window.location.href);\n\n    /**\n    * Determine if a URL shares the same origin as the current location\n    *\n    * @param {String} requestURL The URL to test\n    * @returns {boolean} True if URL shares the same origin, otherwise false\n    */\n    return function isURLSameOrigin(requestURL) {\n      var parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL;\n      return (parsed.protocol === originURL.protocol &&\n            parsed.host === originURL.host);\n    };\n  })() :\n\n  // Non standard browser envs (web workers, react-native) lack needed support.\n  (function nonStandardBrowserEnv() {\n    return function isURLSameOrigin() {\n      return true;\n    };\n  })()\n);\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/isURLSameOrigin.js\n// module id = 14\n// module chunks = 0","'use strict';\n\n// btoa polyfill for IE<10 courtesy https://github.com/davidchambers/Base64.js\n\nvar chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';\n\nfunction E() {\n  this.message = 'String contains an invalid character';\n}\nE.prototype = new Error;\nE.prototype.code = 5;\nE.prototype.name = 'InvalidCharacterError';\n\nfunction btoa(input) {\n  var str = String(input);\n  var output = '';\n  for (\n    // initialize result and counter\n    var block, charCode, idx = 0, map = chars;\n    // if the next str index does not exist:\n    //   change the mapping table to \"=\"\n    //   check if d has no fractional digits\n    str.charAt(idx | 0) || (map = '=', idx % 1);\n    // \"8 - idx % 1 * 8\" generates the sequence 2, 4, 6, 8\n    output += map.charAt(63 & block >> 8 - idx % 1 * 8)\n  ) {\n    charCode = str.charCodeAt(idx += 3 / 4);\n    if (charCode > 0xFF) {\n      throw new E();\n    }\n    block = block << 8 | charCode;\n  }\n  return output;\n}\n\nmodule.exports = btoa;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/btoa.js\n// module id = 15\n// module chunks = 0","'use strict';\n\nvar utils = require('./../utils');\n\nmodule.exports = (\n  utils.isStandardBrowserEnv() ?\n\n  // Standard browser envs support document.cookie\n  (function standardBrowserEnv() {\n    return {\n      write: function write(name, value, expires, path, domain, secure) {\n        var cookie = [];\n        cookie.push(name + '=' + encodeURIComponent(value));\n\n        if (utils.isNumber(expires)) {\n          cookie.push('expires=' + new Date(expires).toGMTString());\n        }\n\n        if (utils.isString(path)) {\n          cookie.push('path=' + path);\n        }\n\n        if (utils.isString(domain)) {\n          cookie.push('domain=' + domain);\n        }\n\n        if (secure === true) {\n          cookie.push('secure');\n        }\n\n        document.cookie = cookie.join('; ');\n      },\n\n      read: function read(name) {\n        var match = document.cookie.match(new RegExp('(^|;\\\\s*)(' + name + ')=([^;]*)'));\n        return (match ? decodeURIComponent(match[3]) : null);\n      },\n\n      remove: function remove(name) {\n        this.write(name, '', Date.now() - 86400000);\n      }\n    };\n  })() :\n\n  // Non standard browser env (web workers, react-native) lack needed support.\n  (function nonStandardBrowserEnv() {\n    return {\n      write: function write() {},\n      read: function read() { return null; },\n      remove: function remove() {}\n    };\n  })()\n);\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/cookies.js\n// module id = 16\n// module chunks = 0","'use strict';\n\nvar utils = require('./../utils');\n\nfunction InterceptorManager() {\n  this.handlers = [];\n}\n\n/**\n * Add a new interceptor to the stack\n *\n * @param {Function} fulfilled The function to handle `then` for a `Promise`\n * @param {Function} rejected The function to handle `reject` for a `Promise`\n *\n * @return {Number} An ID used to remove interceptor later\n */\nInterceptorManager.prototype.use = function use(fulfilled, rejected) {\n  this.handlers.push({\n    fulfilled: fulfilled,\n    rejected: rejected\n  });\n  return this.handlers.length - 1;\n};\n\n/**\n * Remove an interceptor from the stack\n *\n * @param {Number} id The ID that was returned by `use`\n */\nInterceptorManager.prototype.eject = function eject(id) {\n  if (this.handlers[id]) {\n    this.handlers[id] = null;\n  }\n};\n\n/**\n * Iterate over all the registered interceptors\n *\n * This method is particularly useful for skipping over any\n * interceptors that may have become `null` calling `eject`.\n *\n * @param {Function} fn The function to call for each interceptor\n */\nInterceptorManager.prototype.forEach = function forEach(fn) {\n  utils.forEach(this.handlers, function forEachHandler(h) {\n    if (h !== null) {\n      fn(h);\n    }\n  });\n};\n\nmodule.exports = InterceptorManager;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/core/InterceptorManager.js\n// module id = 17\n// module chunks = 0","'use strict';\n\nvar utils = require('./../utils');\nvar transformData = require('./transformData');\nvar isCancel = require('../cancel/isCancel');\nvar defaults = require('../defaults');\nvar isAbsoluteURL = require('./../helpers/isAbsoluteURL');\nvar combineURLs = require('./../helpers/combineURLs');\n\n/**\n * Throws a `Cancel` if cancellation has been requested.\n */\nfunction throwIfCancellationRequested(config) {\n  if (config.cancelToken) {\n    config.cancelToken.throwIfRequested();\n  }\n}\n\n/**\n * Dispatch a request to the server using the configured adapter.\n *\n * @param {object} config The config that is to be used for the request\n * @returns {Promise} The Promise to be fulfilled\n */\nmodule.exports = function dispatchRequest(config) {\n  throwIfCancellationRequested(config);\n\n  // Support baseURL config\n  if (config.baseURL && !isAbsoluteURL(config.url)) {\n    config.url = combineURLs(config.baseURL, config.url);\n  }\n\n  // Ensure headers exist\n  config.headers = config.headers || {};\n\n  // Transform request data\n  config.data = transformData(\n    config.data,\n    config.headers,\n    config.transformRequest\n  );\n\n  // Flatten headers\n  config.headers = utils.merge(\n    config.headers.common || {},\n    config.headers[config.method] || {},\n    config.headers || {}\n  );\n\n  utils.forEach(\n    ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],\n    function cleanHeaderConfig(method) {\n      delete config.headers[method];\n    }\n  );\n\n  var adapter = config.adapter || defaults.adapter;\n\n  return adapter(config).then(function onAdapterResolution(response) {\n    throwIfCancellationRequested(config);\n\n    // Transform response data\n    response.data = transformData(\n      response.data,\n      response.headers,\n      config.transformResponse\n    );\n\n    return response;\n  }, function onAdapterRejection(reason) {\n    if (!isCancel(reason)) {\n      throwIfCancellationRequested(config);\n\n      // Transform response data\n      if (reason && reason.response) {\n        reason.response.data = transformData(\n          reason.response.data,\n          reason.response.headers,\n          config.transformResponse\n        );\n      }\n    }\n\n    return Promise.reject(reason);\n  });\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/core/dispatchRequest.js\n// module id = 18\n// module chunks = 0","'use strict';\n\nvar utils = require('./../utils');\n\n/**\n * Transform the data for a request or a response\n *\n * @param {Object|String} data The data to be transformed\n * @param {Array} headers The headers for the request or response\n * @param {Array|Function} fns A single function or Array of functions\n * @returns {*} The resulting transformed data\n */\nmodule.exports = function transformData(data, headers, fns) {\n  /*eslint no-param-reassign:0*/\n  utils.forEach(fns, function transform(fn) {\n    data = fn(data, headers);\n  });\n\n  return data;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/core/transformData.js\n// module id = 19\n// module chunks = 0","'use strict';\n\nmodule.exports = function isCancel(value) {\n  return !!(value && value.__CANCEL__);\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/cancel/isCancel.js\n// module id = 20\n// module chunks = 0","'use strict';\n\n/**\n * Determines whether the specified URL is absolute\n *\n * @param {string} url The URL to test\n * @returns {boolean} True if the specified URL is absolute, otherwise false\n */\nmodule.exports = function isAbsoluteURL(url) {\n  // A URL is considered absolute if it begins with \"<scheme>://\" or \"//\" (protocol-relative URL).\n  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed\n  // by any combination of letters, digits, plus, period, or hyphen.\n  return /^([a-z][a-z\\d\\+\\-\\.]*:)?\\/\\//i.test(url);\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/isAbsoluteURL.js\n// module id = 21\n// module chunks = 0","'use strict';\n\n/**\n * Creates a new URL by combining the specified URLs\n *\n * @param {string} baseURL The base URL\n * @param {string} relativeURL The relative URL\n * @returns {string} The combined URL\n */\nmodule.exports = function combineURLs(baseURL, relativeURL) {\n  return relativeURL\n    ? baseURL.replace(/\\/+$/, '') + '/' + relativeURL.replace(/^\\/+/, '')\n    : baseURL;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/combineURLs.js\n// module id = 22\n// module chunks = 0","'use strict';\n\n/**\n * A `Cancel` is an object that is thrown when an operation is canceled.\n *\n * @class\n * @param {string=} message The message.\n */\nfunction Cancel(message) {\n  this.message = message;\n}\n\nCancel.prototype.toString = function toString() {\n  return 'Cancel' + (this.message ? ': ' + this.message : '');\n};\n\nCancel.prototype.__CANCEL__ = true;\n\nmodule.exports = Cancel;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/cancel/Cancel.js\n// module id = 23\n// module chunks = 0","'use strict';\n\nvar Cancel = require('./Cancel');\n\n/**\n * A `CancelToken` is an object that can be used to request cancellation of an operation.\n *\n * @class\n * @param {Function} executor The executor function.\n */\nfunction CancelToken(executor) {\n  if (typeof executor !== 'function') {\n    throw new TypeError('executor must be a function.');\n  }\n\n  var resolvePromise;\n  this.promise = new Promise(function promiseExecutor(resolve) {\n    resolvePromise = resolve;\n  });\n\n  var token = this;\n  executor(function cancel(message) {\n    if (token.reason) {\n      // Cancellation has already been requested\n      return;\n    }\n\n    token.reason = new Cancel(message);\n    resolvePromise(token.reason);\n  });\n}\n\n/**\n * Throws a `Cancel` if cancellation has been requested.\n */\nCancelToken.prototype.throwIfRequested = function throwIfRequested() {\n  if (this.reason) {\n    throw this.reason;\n  }\n};\n\n/**\n * Returns an object that contains a new `CancelToken` and a function that, when called,\n * cancels the `CancelToken`.\n */\nCancelToken.source = function source() {\n  var cancel;\n  var token = new CancelToken(function executor(c) {\n    cancel = c;\n  });\n  return {\n    token: token,\n    cancel: cancel\n  };\n};\n\nmodule.exports = CancelToken;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/cancel/CancelToken.js\n// module id = 24\n// module chunks = 0","'use strict';\n\n/**\n * Syntactic sugar for invoking a function and expanding an array for arguments.\n *\n * Common use case would be to use `Function.prototype.apply`.\n *\n *  ```js\n *  function f(x, y, z) {}\n *  var args = [1, 2, 3];\n *  f.apply(null, args);\n *  ```\n *\n * With `spread` this example can be re-written.\n *\n *  ```js\n *  spread(function(x, y, z) {})([1, 2, 3]);\n *  ```\n *\n * @param {Function} callback\n * @returns {Function}\n */\nmodule.exports = function spread(callback) {\n  return function wrap(arr) {\n    return callback.apply(null, arr);\n  };\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./lib/helpers/spread.js\n// module id = 25\n// module chunks = 0"],"sourceRoot":""}
\ No newline at end of file
diff --git a/helloworld/node_modules/axios/index.d.ts b/helloworld/node_modules/axios/index.d.ts
new file mode 100755
index 0000000..5204a30
--- /dev/null
+++ b/helloworld/node_modules/axios/index.d.ts
@@ -0,0 +1,127 @@
+export interface AxiosTransformer {
+  (data: any, headers?: any): any;
+}
+
+export interface AxiosAdapter {
+  (config: AxiosRequestConfig): AxiosPromise<any>;
+}
+
+export interface AxiosBasicCredentials {
+  username: string;
+  password: string;
+}
+
+export interface AxiosProxyConfig {
+  host: string;
+  port: number;
+}
+
+export interface AxiosRequestConfig {
+  url?: string;
+  method?: string;
+  baseURL?: string;
+  transformRequest?: AxiosTransformer | AxiosTransformer[];
+  transformResponse?: AxiosTransformer | AxiosTransformer[];
+  headers?: any;
+  params?: any;
+  paramsSerializer?: (params: any) => string;
+  data?: any;
+  timeout?: number;
+  withCredentials?: boolean;
+  adapter?: AxiosAdapter;
+  auth?: AxiosBasicCredentials;
+  responseType?: string;
+  xsrfCookieName?: string;
+  xsrfHeaderName?: string;
+  onUploadProgress?: (progressEvent: any) => void;
+  onDownloadProgress?: (progressEvent: any) => void;
+  maxContentLength?: number;
+  validateStatus?: (status: number) => boolean;
+  maxRedirects?: number;
+  httpAgent?: any;
+  httpsAgent?: any;
+  proxy?: AxiosProxyConfig;
+  cancelToken?: CancelToken;
+}
+
+export interface AxiosResponse<T = any>  {
+  data: T;
+  status: number;
+  statusText: string;
+  headers: any;
+  config: AxiosRequestConfig;
+  request?: any;
+}
+
+export interface AxiosError extends Error {
+  config: AxiosRequestConfig;
+  code?: string;
+  request?: any;
+  response?: AxiosResponse;
+}
+
+export interface AxiosPromise<T = any> extends Promise<AxiosResponse<T>> {
+}
+
+export interface CancelStatic {
+  new (message?: string): Cancel;
+}
+
+export interface Cancel {
+  message: string;
+}
+
+export interface Canceler {
+  (message?: string): void;
+}
+
+export interface CancelTokenStatic {
+  new (executor: (cancel: Canceler) => void): CancelToken;
+  source(): CancelTokenSource;
+}
+
+export interface CancelToken {
+  promise: Promise<Cancel>;
+  reason?: Cancel;
+  throwIfRequested(): void;
+}
+
+export interface CancelTokenSource {
+  token: CancelToken;
+  cancel: Canceler;
+}
+
+export interface AxiosInterceptorManager<V> {
+  use(onFulfilled?: (value: V) => V | Promise<V>, onRejected?: (error: any) => any): number;
+  eject(id: number): void;
+}
+
+export interface AxiosInstance {
+  defaults: AxiosRequestConfig;
+  interceptors: {
+    request: AxiosInterceptorManager<AxiosRequestConfig>;
+    response: AxiosInterceptorManager<AxiosResponse>;
+  };
+  request<T = any>(config: AxiosRequestConfig): AxiosPromise<T>;
+  get<T = any>(url: string, config?: AxiosRequestConfig): AxiosPromise<T>;
+  delete(url: string, config?: AxiosRequestConfig): AxiosPromise;
+  head(url: string, config?: AxiosRequestConfig): AxiosPromise;
+  post<T = any>(url: string, data?: any, config?: AxiosRequestConfig): AxiosPromise<T>;
+  put<T = any>(url: string, data?: any, config?: AxiosRequestConfig): AxiosPromise<T>;
+  patch<T = any>(url: string, data?: any, config?: AxiosRequestConfig): AxiosPromise<T>;
+}
+
+export interface AxiosStatic extends AxiosInstance {
+  (config: AxiosRequestConfig): AxiosPromise;
+  (url: string, config?: AxiosRequestConfig): AxiosPromise;
+  create(config?: AxiosRequestConfig): AxiosInstance;
+  Cancel: CancelStatic;
+  CancelToken: CancelTokenStatic;
+  isCancel(value: any): boolean;
+  all<T>(values: (T | Promise<T>)[]): Promise<T[]>;
+  spread<T, R>(callback: (...args: T[]) => R): (array: T[]) => R;
+}
+
+declare const Axios: AxiosStatic;
+
+export default Axios;
diff --git a/helloworld/node_modules/axios/index.js b/helloworld/node_modules/axios/index.js
new file mode 100755
index 0000000..79dfd09
--- /dev/null
+++ b/helloworld/node_modules/axios/index.js
@@ -0,0 +1 @@
+module.exports = require('./lib/axios');
\ No newline at end of file
diff --git a/helloworld/node_modules/axios/lib/adapters/README.md b/helloworld/node_modules/axios/lib/adapters/README.md
new file mode 100755
index 0000000..68f1118
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/adapters/README.md
@@ -0,0 +1,37 @@
+# axios // adapters
+
+The modules under `adapters/` are modules that handle dispatching a request and settling a returned `Promise` once a response is received.
+
+## Example
+
+```js
+var settle = require('./../core/settle');
+
+module.exports = function myAdapter(config) {
+  // At this point:
+  //  - config has been merged with defaults
+  //  - request transformers have already run
+  //  - request interceptors have already run
+  
+  // Make the request using config provided
+  // Upon response settle the Promise
+
+  return new Promise(function(resolve, reject) {
+  
+    var response = {
+      data: responseData,
+      status: request.status,
+      statusText: request.statusText,
+      headers: responseHeaders,
+      config: config,
+      request: request
+    };
+
+    settle(resolve, reject, response);
+
+    // From here:
+    //  - response transformers will run
+    //  - response interceptors will run
+  });
+}
+```
diff --git a/helloworld/node_modules/axios/lib/adapters/http.js b/helloworld/node_modules/axios/lib/adapters/http.js
new file mode 100755
index 0000000..f6d7067
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/adapters/http.js
@@ -0,0 +1,228 @@
+'use strict';
+
+var utils = require('./../utils');
+var settle = require('./../core/settle');
+var buildURL = require('./../helpers/buildURL');
+var http = require('http');
+var https = require('https');
+var httpFollow = require('follow-redirects').http;
+var httpsFollow = require('follow-redirects').https;
+var url = require('url');
+var zlib = require('zlib');
+var pkg = require('./../../package.json');
+var createError = require('../core/createError');
+var enhanceError = require('../core/enhanceError');
+
+/*eslint consistent-return:0*/
+module.exports = function httpAdapter(config) {
+  return new Promise(function dispatchHttpRequest(resolve, reject) {
+    var data = config.data;
+    var headers = config.headers;
+    var timer;
+
+    // Set User-Agent (required by some servers)
+    // Only set header if it hasn't been set in config
+    // See https://github.com/axios/axios/issues/69
+    if (!headers['User-Agent'] && !headers['user-agent']) {
+      headers['User-Agent'] = 'axios/' + pkg.version;
+    }
+
+    if (data && !utils.isStream(data)) {
+      if (Buffer.isBuffer(data)) {
+        // Nothing to do...
+      } else if (utils.isArrayBuffer(data)) {
+        data = new Buffer(new Uint8Array(data));
+      } else if (utils.isString(data)) {
+        data = new Buffer(data, 'utf-8');
+      } else {
+        return reject(createError(
+          'Data after transformation must be a string, an ArrayBuffer, a Buffer, or a Stream',
+          config
+        ));
+      }
+
+      // Add Content-Length header if data exists
+      headers['Content-Length'] = data.length;
+    }
+
+    // HTTP basic authentication
+    var auth = undefined;
+    if (config.auth) {
+      var username = config.auth.username || '';
+      var password = config.auth.password || '';
+      auth = username + ':' + password;
+    }
+
+    // Parse url
+    var parsed = url.parse(config.url);
+    var protocol = parsed.protocol || 'http:';
+
+    if (!auth && parsed.auth) {
+      var urlAuth = parsed.auth.split(':');
+      var urlUsername = urlAuth[0] || '';
+      var urlPassword = urlAuth[1] || '';
+      auth = urlUsername + ':' + urlPassword;
+    }
+
+    if (auth) {
+      delete headers.Authorization;
+    }
+
+    var isHttps = protocol === 'https:';
+    var agent = isHttps ? config.httpsAgent : config.httpAgent;
+
+    var options = {
+      hostname: parsed.hostname,
+      port: parsed.port,
+      path: buildURL(parsed.path, config.params, config.paramsSerializer).replace(/^\?/, ''),
+      method: config.method,
+      headers: headers,
+      agent: agent,
+      auth: auth
+    };
+
+    var proxy = config.proxy;
+    if (!proxy && proxy !== false) {
+      var proxyEnv = protocol.slice(0, -1) + '_proxy';
+      var proxyUrl = process.env[proxyEnv] || process.env[proxyEnv.toUpperCase()];
+      if (proxyUrl) {
+        var parsedProxyUrl = url.parse(proxyUrl);
+        proxy = {
+          host: parsedProxyUrl.hostname,
+          port: parsedProxyUrl.port
+        };
+
+        if (parsedProxyUrl.auth) {
+          var proxyUrlAuth = parsedProxyUrl.auth.split(':');
+          proxy.auth = {
+            username: proxyUrlAuth[0],
+            password: proxyUrlAuth[1]
+          };
+        }
+      }
+    }
+
+    if (proxy) {
+      options.hostname = proxy.host;
+      options.host = proxy.host;
+      options.headers.host = parsed.hostname + (parsed.port ? ':' + parsed.port : '');
+      options.port = proxy.port;
+      options.path = protocol + '//' + parsed.hostname + (parsed.port ? ':' + parsed.port : '') + options.path;
+
+      // Basic proxy authorization
+      if (proxy.auth) {
+        var base64 = new Buffer(proxy.auth.username + ':' + proxy.auth.password, 'utf8').toString('base64');
+        options.headers['Proxy-Authorization'] = 'Basic ' + base64;
+      }
+    }
+
+    var transport;
+    if (config.transport) {
+      transport = config.transport;
+    } else if (config.maxRedirects === 0) {
+      transport = isHttps ? https : http;
+    } else {
+      if (config.maxRedirects) {
+        options.maxRedirects = config.maxRedirects;
+      }
+      transport = isHttps ? httpsFollow : httpFollow;
+    }
+
+    // Create the request
+    var req = transport.request(options, function handleResponse(res) {
+      if (req.aborted) return;
+
+      // Response has been received so kill timer that handles request timeout
+      clearTimeout(timer);
+      timer = null;
+
+      // uncompress the response body transparently if required
+      var stream = res;
+      switch (res.headers['content-encoding']) {
+      /*eslint default-case:0*/
+      case 'gzip':
+      case 'compress':
+      case 'deflate':
+        // add the unzipper to the body stream processing pipeline
+        stream = stream.pipe(zlib.createUnzip());
+
+        // remove the content-encoding in order to not confuse downstream operations
+        delete res.headers['content-encoding'];
+        break;
+      }
+
+      // return the last request in case of redirects
+      var lastRequest = res.req || req;
+
+      var response = {
+        status: res.statusCode,
+        statusText: res.statusMessage,
+        headers: res.headers,
+        config: config,
+        request: lastRequest
+      };
+
+      if (config.responseType === 'stream') {
+        response.data = stream;
+        settle(resolve, reject, response);
+      } else {
+        var responseBuffer = [];
+        stream.on('data', function handleStreamData(chunk) {
+          responseBuffer.push(chunk);
+
+          // make sure the content length is not over the maxContentLength if specified
+          if (config.maxContentLength > -1 && Buffer.concat(responseBuffer).length > config.maxContentLength) {
+            reject(createError('maxContentLength size of ' + config.maxContentLength + ' exceeded',
+              config, null, lastRequest));
+          }
+        });
+
+        stream.on('error', function handleStreamError(err) {
+          if (req.aborted) return;
+          reject(enhanceError(err, config, null, lastRequest));
+        });
+
+        stream.on('end', function handleStreamEnd() {
+          var responseData = Buffer.concat(responseBuffer);
+          if (config.responseType !== 'arraybuffer') {
+            responseData = responseData.toString('utf8');
+          }
+
+          response.data = responseData;
+          settle(resolve, reject, response);
+        });
+      }
+    });
+
+    // Handle errors
+    req.on('error', function handleRequestError(err) {
+      if (req.aborted) return;
+      reject(enhanceError(err, config, null, req));
+    });
+
+    // Handle request timeout
+    if (config.timeout && !timer) {
+      timer = setTimeout(function handleRequestTimeout() {
+        req.abort();
+        reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED', req));
+      }, config.timeout);
+    }
+
+    if (config.cancelToken) {
+      // Handle cancellation
+      config.cancelToken.promise.then(function onCanceled(cancel) {
+        if (req.aborted) return;
+
+        req.abort();
+        reject(cancel);
+      });
+    }
+
+    // Send the request
+    if (utils.isStream(data)) {
+      data.pipe(req);
+    } else {
+      req.end(data);
+    }
+  });
+};
diff --git a/helloworld/node_modules/axios/lib/adapters/xhr.js b/helloworld/node_modules/axios/lib/adapters/xhr.js
new file mode 100755
index 0000000..81364bd
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/adapters/xhr.js
@@ -0,0 +1,180 @@
+'use strict';
+
+var utils = require('./../utils');
+var settle = require('./../core/settle');
+var buildURL = require('./../helpers/buildURL');
+var parseHeaders = require('./../helpers/parseHeaders');
+var isURLSameOrigin = require('./../helpers/isURLSameOrigin');
+var createError = require('../core/createError');
+var btoa = (typeof window !== 'undefined' && window.btoa && window.btoa.bind(window)) || require('./../helpers/btoa');
+
+module.exports = function xhrAdapter(config) {
+  return new Promise(function dispatchXhrRequest(resolve, reject) {
+    var requestData = config.data;
+    var requestHeaders = config.headers;
+
+    if (utils.isFormData(requestData)) {
+      delete requestHeaders['Content-Type']; // Let the browser set it
+    }
+
+    var request = new XMLHttpRequest();
+    var loadEvent = 'onreadystatechange';
+    var xDomain = false;
+
+    // For IE 8/9 CORS support
+    // Only supports POST and GET calls and doesn't returns the response headers.
+    // DON'T do this for testing b/c XMLHttpRequest is mocked, not XDomainRequest.
+    if (process.env.NODE_ENV !== 'test' &&
+        typeof window !== 'undefined' &&
+        window.XDomainRequest && !('withCredentials' in request) &&
+        !isURLSameOrigin(config.url)) {
+      request = new window.XDomainRequest();
+      loadEvent = 'onload';
+      xDomain = true;
+      request.onprogress = function handleProgress() {};
+      request.ontimeout = function handleTimeout() {};
+    }
+
+    // HTTP basic authentication
+    if (config.auth) {
+      var username = config.auth.username || '';
+      var password = config.auth.password || '';
+      requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password);
+    }
+
+    request.open(config.method.toUpperCase(), buildURL(config.url, config.params, config.paramsSerializer), true);
+
+    // Set the request timeout in MS
+    request.timeout = config.timeout;
+
+    // Listen for ready state
+    request[loadEvent] = function handleLoad() {
+      if (!request || (request.readyState !== 4 && !xDomain)) {
+        return;
+      }
+
+      // The request errored out and we didn't get a response, this will be
+      // handled by onerror instead
+      // With one exception: request that using file: protocol, most browsers
+      // will return status as 0 even though it's a successful request
+      if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {
+        return;
+      }
+
+      // Prepare the response
+      var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null;
+      var responseData = !config.responseType || config.responseType === 'text' ? request.responseText : request.response;
+      var response = {
+        data: responseData,
+        // IE sends 1223 instead of 204 (https://github.com/axios/axios/issues/201)
+        status: request.status === 1223 ? 204 : request.status,
+        statusText: request.status === 1223 ? 'No Content' : request.statusText,
+        headers: responseHeaders,
+        config: config,
+        request: request
+      };
+
+      settle(resolve, reject, response);
+
+      // Clean up request
+      request = null;
+    };
+
+    // Handle low level network errors
+    request.onerror = function handleError() {
+      // Real errors are hidden from us by the browser
+      // onerror should only fire if it's a network error
+      reject(createError('Network Error', config, null, request));
+
+      // Clean up request
+      request = null;
+    };
+
+    // Handle timeout
+    request.ontimeout = function handleTimeout() {
+      reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED',
+        request));
+
+      // Clean up request
+      request = null;
+    };
+
+    // Add xsrf header
+    // This is only done if running in a standard browser environment.
+    // Specifically not if we're in a web worker, or react-native.
+    if (utils.isStandardBrowserEnv()) {
+      var cookies = require('./../helpers/cookies');
+
+      // Add xsrf header
+      var xsrfValue = (config.withCredentials || isURLSameOrigin(config.url)) && config.xsrfCookieName ?
+          cookies.read(config.xsrfCookieName) :
+          undefined;
+
+      if (xsrfValue) {
+        requestHeaders[config.xsrfHeaderName] = xsrfValue;
+      }
+    }
+
+    // Add headers to the request
+    if ('setRequestHeader' in request) {
+      utils.forEach(requestHeaders, function setRequestHeader(val, key) {
+        if (typeof requestData === 'undefined' && key.toLowerCase() === 'content-type') {
+          // Remove Content-Type if data is undefined
+          delete requestHeaders[key];
+        } else {
+          // Otherwise add header to the request
+          request.setRequestHeader(key, val);
+        }
+      });
+    }
+
+    // Add withCredentials to request if needed
+    if (config.withCredentials) {
+      request.withCredentials = true;
+    }
+
+    // Add responseType to request if needed
+    if (config.responseType) {
+      try {
+        request.responseType = config.responseType;
+      } catch (e) {
+        // Expected DOMException thrown by browsers not compatible XMLHttpRequest Level 2.
+        // But, this can be suppressed for 'json' type as it can be parsed by default 'transformResponse' function.
+        if (config.responseType !== 'json') {
+          throw e;
+        }
+      }
+    }
+
+    // Handle progress if needed
+    if (typeof config.onDownloadProgress === 'function') {
+      request.addEventListener('progress', config.onDownloadProgress);
+    }
+
+    // Not all browsers support upload events
+    if (typeof config.onUploadProgress === 'function' && request.upload) {
+      request.upload.addEventListener('progress', config.onUploadProgress);
+    }
+
+    if (config.cancelToken) {
+      // Handle cancellation
+      config.cancelToken.promise.then(function onCanceled(cancel) {
+        if (!request) {
+          return;
+        }
+
+        request.abort();
+        reject(cancel);
+        // Clean up request
+        request = null;
+      });
+    }
+
+    if (requestData === undefined) {
+      requestData = null;
+    }
+
+    // Send the request
+    request.send(requestData);
+  });
+};
diff --git a/helloworld/node_modules/axios/lib/axios.js b/helloworld/node_modules/axios/lib/axios.js
new file mode 100755
index 0000000..ed1f519
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/axios.js
@@ -0,0 +1,52 @@
+'use strict';
+
+var utils = require('./utils');
+var bind = require('./helpers/bind');
+var Axios = require('./core/Axios');
+var defaults = require('./defaults');
+
+/**
+ * Create an instance of Axios
+ *
+ * @param {Object} defaultConfig The default config for the instance
+ * @return {Axios} A new instance of Axios
+ */
+function createInstance(defaultConfig) {
+  var context = new Axios(defaultConfig);
+  var instance = bind(Axios.prototype.request, context);
+
+  // Copy axios.prototype to instance
+  utils.extend(instance, Axios.prototype, context);
+
+  // Copy context to instance
+  utils.extend(instance, context);
+
+  return instance;
+}
+
+// Create the default instance to be exported
+var axios = createInstance(defaults);
+
+// Expose Axios class to allow class inheritance
+axios.Axios = Axios;
+
+// Factory for creating new instances
+axios.create = function create(instanceConfig) {
+  return createInstance(utils.merge(defaults, instanceConfig));
+};
+
+// Expose Cancel & CancelToken
+axios.Cancel = require('./cancel/Cancel');
+axios.CancelToken = require('./cancel/CancelToken');
+axios.isCancel = require('./cancel/isCancel');
+
+// Expose all/spread
+axios.all = function all(promises) {
+  return Promise.all(promises);
+};
+axios.spread = require('./helpers/spread');
+
+module.exports = axios;
+
+// Allow use of default import syntax in TypeScript
+module.exports.default = axios;
diff --git a/helloworld/node_modules/axios/lib/cancel/Cancel.js b/helloworld/node_modules/axios/lib/cancel/Cancel.js
new file mode 100755
index 0000000..e0de400
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/cancel/Cancel.js
@@ -0,0 +1,19 @@
+'use strict';
+
+/**
+ * A `Cancel` is an object that is thrown when an operation is canceled.
+ *
+ * @class
+ * @param {string=} message The message.
+ */
+function Cancel(message) {
+  this.message = message;
+}
+
+Cancel.prototype.toString = function toString() {
+  return 'Cancel' + (this.message ? ': ' + this.message : '');
+};
+
+Cancel.prototype.__CANCEL__ = true;
+
+module.exports = Cancel;
diff --git a/helloworld/node_modules/axios/lib/cancel/CancelToken.js b/helloworld/node_modules/axios/lib/cancel/CancelToken.js
new file mode 100755
index 0000000..6b46e66
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/cancel/CancelToken.js
@@ -0,0 +1,57 @@
+'use strict';
+
+var Cancel = require('./Cancel');
+
+/**
+ * A `CancelToken` is an object that can be used to request cancellation of an operation.
+ *
+ * @class
+ * @param {Function} executor The executor function.
+ */
+function CancelToken(executor) {
+  if (typeof executor !== 'function') {
+    throw new TypeError('executor must be a function.');
+  }
+
+  var resolvePromise;
+  this.promise = new Promise(function promiseExecutor(resolve) {
+    resolvePromise = resolve;
+  });
+
+  var token = this;
+  executor(function cancel(message) {
+    if (token.reason) {
+      // Cancellation has already been requested
+      return;
+    }
+
+    token.reason = new Cancel(message);
+    resolvePromise(token.reason);
+  });
+}
+
+/**
+ * Throws a `Cancel` if cancellation has been requested.
+ */
+CancelToken.prototype.throwIfRequested = function throwIfRequested() {
+  if (this.reason) {
+    throw this.reason;
+  }
+};
+
+/**
+ * Returns an object that contains a new `CancelToken` and a function that, when called,
+ * cancels the `CancelToken`.
+ */
+CancelToken.source = function source() {
+  var cancel;
+  var token = new CancelToken(function executor(c) {
+    cancel = c;
+  });
+  return {
+    token: token,
+    cancel: cancel
+  };
+};
+
+module.exports = CancelToken;
diff --git a/helloworld/node_modules/axios/lib/cancel/isCancel.js b/helloworld/node_modules/axios/lib/cancel/isCancel.js
new file mode 100755
index 0000000..051f3ae
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/cancel/isCancel.js
@@ -0,0 +1,5 @@
+'use strict';
+
+module.exports = function isCancel(value) {
+  return !!(value && value.__CANCEL__);
+};
diff --git a/helloworld/node_modules/axios/lib/core/Axios.js b/helloworld/node_modules/axios/lib/core/Axios.js
new file mode 100755
index 0000000..f1af3e7
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/core/Axios.js
@@ -0,0 +1,79 @@
+'use strict';
+
+var defaults = require('./../defaults');
+var utils = require('./../utils');
+var InterceptorManager = require('./InterceptorManager');
+var dispatchRequest = require('./dispatchRequest');
+
+/**
+ * Create a new instance of Axios
+ *
+ * @param {Object} instanceConfig The default config for the instance
+ */
+function Axios(instanceConfig) {
+  this.defaults = instanceConfig;
+  this.interceptors = {
+    request: new InterceptorManager(),
+    response: new InterceptorManager()
+  };
+}
+
+/**
+ * Dispatch a request
+ *
+ * @param {Object} config The config specific for this request (merged with this.defaults)
+ */
+Axios.prototype.request = function request(config) {
+  /*eslint no-param-reassign:0*/
+  // Allow for axios('example/url'[, config]) a la fetch API
+  if (typeof config === 'string') {
+    config = utils.merge({
+      url: arguments[0]
+    }, arguments[1]);
+  }
+
+  config = utils.merge(defaults, this.defaults, { method: 'get' }, config);
+  config.method = config.method.toLowerCase();
+
+  // Hook up interceptors middleware
+  var chain = [dispatchRequest, undefined];
+  var promise = Promise.resolve(config);
+
+  this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {
+    chain.unshift(interceptor.fulfilled, interceptor.rejected);
+  });
+
+  this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {
+    chain.push(interceptor.fulfilled, interceptor.rejected);
+  });
+
+  while (chain.length) {
+    promise = promise.then(chain.shift(), chain.shift());
+  }
+
+  return promise;
+};
+
+// Provide aliases for supported request methods
+utils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {
+  /*eslint func-names:0*/
+  Axios.prototype[method] = function(url, config) {
+    return this.request(utils.merge(config || {}, {
+      method: method,
+      url: url
+    }));
+  };
+});
+
+utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
+  /*eslint func-names:0*/
+  Axios.prototype[method] = function(url, data, config) {
+    return this.request(utils.merge(config || {}, {
+      method: method,
+      url: url,
+      data: data
+    }));
+  };
+});
+
+module.exports = Axios;
diff --git a/helloworld/node_modules/axios/lib/core/InterceptorManager.js b/helloworld/node_modules/axios/lib/core/InterceptorManager.js
new file mode 100755
index 0000000..50d667b
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/core/InterceptorManager.js
@@ -0,0 +1,52 @@
+'use strict';
+
+var utils = require('./../utils');
+
+function InterceptorManager() {
+  this.handlers = [];
+}
+
+/**
+ * Add a new interceptor to the stack
+ *
+ * @param {Function} fulfilled The function to handle `then` for a `Promise`
+ * @param {Function} rejected The function to handle `reject` for a `Promise`
+ *
+ * @return {Number} An ID used to remove interceptor later
+ */
+InterceptorManager.prototype.use = function use(fulfilled, rejected) {
+  this.handlers.push({
+    fulfilled: fulfilled,
+    rejected: rejected
+  });
+  return this.handlers.length - 1;
+};
+
+/**
+ * Remove an interceptor from the stack
+ *
+ * @param {Number} id The ID that was returned by `use`
+ */
+InterceptorManager.prototype.eject = function eject(id) {
+  if (this.handlers[id]) {
+    this.handlers[id] = null;
+  }
+};
+
+/**
+ * Iterate over all the registered interceptors
+ *
+ * This method is particularly useful for skipping over any
+ * interceptors that may have become `null` calling `eject`.
+ *
+ * @param {Function} fn The function to call for each interceptor
+ */
+InterceptorManager.prototype.forEach = function forEach(fn) {
+  utils.forEach(this.handlers, function forEachHandler(h) {
+    if (h !== null) {
+      fn(h);
+    }
+  });
+};
+
+module.exports = InterceptorManager;
diff --git a/helloworld/node_modules/axios/lib/core/README.md b/helloworld/node_modules/axios/lib/core/README.md
new file mode 100755
index 0000000..253bc48
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/core/README.md
@@ -0,0 +1,7 @@
+# axios // core
+
+The modules found in `core/` should be modules that are specific to the domain logic of axios. These modules would most likely not make sense to be consumed outside of the axios module, as their logic is too specific. Some examples of core modules are:
+
+- Dispatching requests
+- Managing interceptors
+- Handling config
diff --git a/helloworld/node_modules/axios/lib/core/createError.js b/helloworld/node_modules/axios/lib/core/createError.js
new file mode 100755
index 0000000..933680f
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/core/createError.js
@@ -0,0 +1,18 @@
+'use strict';
+
+var enhanceError = require('./enhanceError');
+
+/**
+ * Create an Error with the specified message, config, error code, request and response.
+ *
+ * @param {string} message The error message.
+ * @param {Object} config The config.
+ * @param {string} [code] The error code (for example, 'ECONNABORTED').
+ * @param {Object} [request] The request.
+ * @param {Object} [response] The response.
+ * @returns {Error} The created error.
+ */
+module.exports = function createError(message, config, code, request, response) {
+  var error = new Error(message);
+  return enhanceError(error, config, code, request, response);
+};
diff --git a/helloworld/node_modules/axios/lib/core/dispatchRequest.js b/helloworld/node_modules/axios/lib/core/dispatchRequest.js
new file mode 100755
index 0000000..9ea70f2
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/core/dispatchRequest.js
@@ -0,0 +1,86 @@
+'use strict';
+
+var utils = require('./../utils');
+var transformData = require('./transformData');
+var isCancel = require('../cancel/isCancel');
+var defaults = require('../defaults');
+var isAbsoluteURL = require('./../helpers/isAbsoluteURL');
+var combineURLs = require('./../helpers/combineURLs');
+
+/**
+ * Throws a `Cancel` if cancellation has been requested.
+ */
+function throwIfCancellationRequested(config) {
+  if (config.cancelToken) {
+    config.cancelToken.throwIfRequested();
+  }
+}
+
+/**
+ * Dispatch a request to the server using the configured adapter.
+ *
+ * @param {object} config The config that is to be used for the request
+ * @returns {Promise} The Promise to be fulfilled
+ */
+module.exports = function dispatchRequest(config) {
+  throwIfCancellationRequested(config);
+
+  // Support baseURL config
+  if (config.baseURL && !isAbsoluteURL(config.url)) {
+    config.url = combineURLs(config.baseURL, config.url);
+  }
+
+  // Ensure headers exist
+  config.headers = config.headers || {};
+
+  // Transform request data
+  config.data = transformData(
+    config.data,
+    config.headers,
+    config.transformRequest
+  );
+
+  // Flatten headers
+  config.headers = utils.merge(
+    config.headers.common || {},
+    config.headers[config.method] || {},
+    config.headers || {}
+  );
+
+  utils.forEach(
+    ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],
+    function cleanHeaderConfig(method) {
+      delete config.headers[method];
+    }
+  );
+
+  var adapter = config.adapter || defaults.adapter;
+
+  return adapter(config).then(function onAdapterResolution(response) {
+    throwIfCancellationRequested(config);
+
+    // Transform response data
+    response.data = transformData(
+      response.data,
+      response.headers,
+      config.transformResponse
+    );
+
+    return response;
+  }, function onAdapterRejection(reason) {
+    if (!isCancel(reason)) {
+      throwIfCancellationRequested(config);
+
+      // Transform response data
+      if (reason && reason.response) {
+        reason.response.data = transformData(
+          reason.response.data,
+          reason.response.headers,
+          config.transformResponse
+        );
+      }
+    }
+
+    return Promise.reject(reason);
+  });
+};
diff --git a/helloworld/node_modules/axios/lib/core/enhanceError.js b/helloworld/node_modules/axios/lib/core/enhanceError.js
new file mode 100755
index 0000000..8dfd5b4
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/core/enhanceError.js
@@ -0,0 +1,21 @@
+'use strict';
+
+/**
+ * Update an Error with the specified config, error code, and response.
+ *
+ * @param {Error} error The error to update.
+ * @param {Object} config The config.
+ * @param {string} [code] The error code (for example, 'ECONNABORTED').
+ * @param {Object} [request] The request.
+ * @param {Object} [response] The response.
+ * @returns {Error} The error.
+ */
+module.exports = function enhanceError(error, config, code, request, response) {
+  error.config = config;
+  if (code) {
+    error.code = code;
+  }
+  error.request = request;
+  error.response = response;
+  return error;
+};
diff --git a/helloworld/node_modules/axios/lib/core/settle.js b/helloworld/node_modules/axios/lib/core/settle.js
new file mode 100755
index 0000000..8db5e23
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/core/settle.js
@@ -0,0 +1,26 @@
+'use strict';
+
+var createError = require('./createError');
+
+/**
+ * Resolve or reject a Promise based on response status.
+ *
+ * @param {Function} resolve A function that resolves the promise.
+ * @param {Function} reject A function that rejects the promise.
+ * @param {object} response The response.
+ */
+module.exports = function settle(resolve, reject, response) {
+  var validateStatus = response.config.validateStatus;
+  // Note: status is not exposed by XDomainRequest
+  if (!response.status || !validateStatus || validateStatus(response.status)) {
+    resolve(response);
+  } else {
+    reject(createError(
+      'Request failed with status code ' + response.status,
+      response.config,
+      null,
+      response.request,
+      response
+    ));
+  }
+};
diff --git a/helloworld/node_modules/axios/lib/core/transformData.js b/helloworld/node_modules/axios/lib/core/transformData.js
new file mode 100755
index 0000000..e065362
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/core/transformData.js
@@ -0,0 +1,20 @@
+'use strict';
+
+var utils = require('./../utils');
+
+/**
+ * Transform the data for a request or a response
+ *
+ * @param {Object|String} data The data to be transformed
+ * @param {Array} headers The headers for the request or response
+ * @param {Array|Function} fns A single function or Array of functions
+ * @returns {*} The resulting transformed data
+ */
+module.exports = function transformData(data, headers, fns) {
+  /*eslint no-param-reassign:0*/
+  utils.forEach(fns, function transform(fn) {
+    data = fn(data, headers);
+  });
+
+  return data;
+};
diff --git a/helloworld/node_modules/axios/lib/defaults.js b/helloworld/node_modules/axios/lib/defaults.js
new file mode 100755
index 0000000..9587b28
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/defaults.js
@@ -0,0 +1,92 @@
+'use strict';
+
+var utils = require('./utils');
+var normalizeHeaderName = require('./helpers/normalizeHeaderName');
+
+var DEFAULT_CONTENT_TYPE = {
+  'Content-Type': 'application/x-www-form-urlencoded'
+};
+
+function setContentTypeIfUnset(headers, value) {
+  if (!utils.isUndefined(headers) && utils.isUndefined(headers['Content-Type'])) {
+    headers['Content-Type'] = value;
+  }
+}
+
+function getDefaultAdapter() {
+  var adapter;
+  if (typeof XMLHttpRequest !== 'undefined') {
+    // For browsers use XHR adapter
+    adapter = require('./adapters/xhr');
+  } else if (typeof process !== 'undefined') {
+    // For node use HTTP adapter
+    adapter = require('./adapters/http');
+  }
+  return adapter;
+}
+
+var defaults = {
+  adapter: getDefaultAdapter(),
+
+  transformRequest: [function transformRequest(data, headers) {
+    normalizeHeaderName(headers, 'Content-Type');
+    if (utils.isFormData(data) ||
+      utils.isArrayBuffer(data) ||
+      utils.isBuffer(data) ||
+      utils.isStream(data) ||
+      utils.isFile(data) ||
+      utils.isBlob(data)
+    ) {
+      return data;
+    }
+    if (utils.isArrayBufferView(data)) {
+      return data.buffer;
+    }
+    if (utils.isURLSearchParams(data)) {
+      setContentTypeIfUnset(headers, 'application/x-www-form-urlencoded;charset=utf-8');
+      return data.toString();
+    }
+    if (utils.isObject(data)) {
+      setContentTypeIfUnset(headers, 'application/json;charset=utf-8');
+      return JSON.stringify(data);
+    }
+    return data;
+  }],
+
+  transformResponse: [function transformResponse(data) {
+    /*eslint no-param-reassign:0*/
+    if (typeof data === 'string') {
+      try {
+        data = JSON.parse(data);
+      } catch (e) { /* Ignore */ }
+    }
+    return data;
+  }],
+
+  timeout: 0,
+
+  xsrfCookieName: 'XSRF-TOKEN',
+  xsrfHeaderName: 'X-XSRF-TOKEN',
+
+  maxContentLength: -1,
+
+  validateStatus: function validateStatus(status) {
+    return status >= 200 && status < 300;
+  }
+};
+
+defaults.headers = {
+  common: {
+    'Accept': 'application/json, text/plain, */*'
+  }
+};
+
+utils.forEach(['delete', 'get', 'head'], function forEachMethodNoData(method) {
+  defaults.headers[method] = {};
+});
+
+utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
+  defaults.headers[method] = utils.merge(DEFAULT_CONTENT_TYPE);
+});
+
+module.exports = defaults;
diff --git a/helloworld/node_modules/axios/lib/helpers/README.md b/helloworld/node_modules/axios/lib/helpers/README.md
new file mode 100755
index 0000000..4ae3419
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/helpers/README.md
@@ -0,0 +1,7 @@
+# axios // helpers
+
+The modules found in `helpers/` should be generic modules that are _not_ specific to the domain logic of axios. These modules could theoretically be published to npm on their own and consumed by other modules or apps. Some examples of generic modules are things like:
+
+- Browser polyfills
+- Managing cookies
+- Parsing HTTP headers
diff --git a/helloworld/node_modules/axios/lib/helpers/bind.js b/helloworld/node_modules/axios/lib/helpers/bind.js
new file mode 100755
index 0000000..6147c60
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/helpers/bind.js
@@ -0,0 +1,11 @@
+'use strict';
+
+module.exports = function bind(fn, thisArg) {
+  return function wrap() {
+    var args = new Array(arguments.length);
+    for (var i = 0; i < args.length; i++) {
+      args[i] = arguments[i];
+    }
+    return fn.apply(thisArg, args);
+  };
+};
diff --git a/helloworld/node_modules/axios/lib/helpers/btoa.js b/helloworld/node_modules/axios/lib/helpers/btoa.js
new file mode 100755
index 0000000..2fe5014
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/helpers/btoa.js
@@ -0,0 +1,36 @@
+'use strict';
+
+// btoa polyfill for IE<10 courtesy https://github.com/davidchambers/Base64.js
+
+var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
+
+function E() {
+  this.message = 'String contains an invalid character';
+}
+E.prototype = new Error;
+E.prototype.code = 5;
+E.prototype.name = 'InvalidCharacterError';
+
+function btoa(input) {
+  var str = String(input);
+  var output = '';
+  for (
+    // initialize result and counter
+    var block, charCode, idx = 0, map = chars;
+    // if the next str index does not exist:
+    //   change the mapping table to "="
+    //   check if d has no fractional digits
+    str.charAt(idx | 0) || (map = '=', idx % 1);
+    // "8 - idx % 1 * 8" generates the sequence 2, 4, 6, 8
+    output += map.charAt(63 & block >> 8 - idx % 1 * 8)
+  ) {
+    charCode = str.charCodeAt(idx += 3 / 4);
+    if (charCode > 0xFF) {
+      throw new E();
+    }
+    block = block << 8 | charCode;
+  }
+  return output;
+}
+
+module.exports = btoa;
diff --git a/helloworld/node_modules/axios/lib/helpers/buildURL.js b/helloworld/node_modules/axios/lib/helpers/buildURL.js
new file mode 100755
index 0000000..1e66456
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/helpers/buildURL.js
@@ -0,0 +1,68 @@
+'use strict';
+
+var utils = require('./../utils');
+
+function encode(val) {
+  return encodeURIComponent(val).
+    replace(/%40/gi, '@').
+    replace(/%3A/gi, ':').
+    replace(/%24/g, '$').
+    replace(/%2C/gi, ',').
+    replace(/%20/g, '+').
+    replace(/%5B/gi, '[').
+    replace(/%5D/gi, ']');
+}
+
+/**
+ * Build a URL by appending params to the end
+ *
+ * @param {string} url The base of the url (e.g., http://www.google.com)
+ * @param {object} [params] The params to be appended
+ * @returns {string} The formatted url
+ */
+module.exports = function buildURL(url, params, paramsSerializer) {
+  /*eslint no-param-reassign:0*/
+  if (!params) {
+    return url;
+  }
+
+  var serializedParams;
+  if (paramsSerializer) {
+    serializedParams = paramsSerializer(params);
+  } else if (utils.isURLSearchParams(params)) {
+    serializedParams = params.toString();
+  } else {
+    var parts = [];
+
+    utils.forEach(params, function serialize(val, key) {
+      if (val === null || typeof val === 'undefined') {
+        return;
+      }
+
+      if (utils.isArray(val)) {
+        key = key + '[]';
+      }
+
+      if (!utils.isArray(val)) {
+        val = [val];
+      }
+
+      utils.forEach(val, function parseValue(v) {
+        if (utils.isDate(v)) {
+          v = v.toISOString();
+        } else if (utils.isObject(v)) {
+          v = JSON.stringify(v);
+        }
+        parts.push(encode(key) + '=' + encode(v));
+      });
+    });
+
+    serializedParams = parts.join('&');
+  }
+
+  if (serializedParams) {
+    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;
+  }
+
+  return url;
+};
diff --git a/helloworld/node_modules/axios/lib/helpers/combineURLs.js b/helloworld/node_modules/axios/lib/helpers/combineURLs.js
new file mode 100755
index 0000000..f1b58a5
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/helpers/combineURLs.js
@@ -0,0 +1,14 @@
+'use strict';
+
+/**
+ * Creates a new URL by combining the specified URLs
+ *
+ * @param {string} baseURL The base URL
+ * @param {string} relativeURL The relative URL
+ * @returns {string} The combined URL
+ */
+module.exports = function combineURLs(baseURL, relativeURL) {
+  return relativeURL
+    ? baseURL.replace(/\/+$/, '') + '/' + relativeURL.replace(/^\/+/, '')
+    : baseURL;
+};
diff --git a/helloworld/node_modules/axios/lib/helpers/cookies.js b/helloworld/node_modules/axios/lib/helpers/cookies.js
new file mode 100755
index 0000000..e45a4f9
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/helpers/cookies.js
@@ -0,0 +1,53 @@
+'use strict';
+
+var utils = require('./../utils');
+
+module.exports = (
+  utils.isStandardBrowserEnv() ?
+
+  // Standard browser envs support document.cookie
+  (function standardBrowserEnv() {
+    return {
+      write: function write(name, value, expires, path, domain, secure) {
+        var cookie = [];
+        cookie.push(name + '=' + encodeURIComponent(value));
+
+        if (utils.isNumber(expires)) {
+          cookie.push('expires=' + new Date(expires).toGMTString());
+        }
+
+        if (utils.isString(path)) {
+          cookie.push('path=' + path);
+        }
+
+        if (utils.isString(domain)) {
+          cookie.push('domain=' + domain);
+        }
+
+        if (secure === true) {
+          cookie.push('secure');
+        }
+
+        document.cookie = cookie.join('; ');
+      },
+
+      read: function read(name) {
+        var match = document.cookie.match(new RegExp('(^|;\\s*)(' + name + ')=([^;]*)'));
+        return (match ? decodeURIComponent(match[3]) : null);
+      },
+
+      remove: function remove(name) {
+        this.write(name, '', Date.now() - 86400000);
+      }
+    };
+  })() :
+
+  // Non standard browser env (web workers, react-native) lack needed support.
+  (function nonStandardBrowserEnv() {
+    return {
+      write: function write() {},
+      read: function read() { return null; },
+      remove: function remove() {}
+    };
+  })()
+);
diff --git a/helloworld/node_modules/axios/lib/helpers/deprecatedMethod.js b/helloworld/node_modules/axios/lib/helpers/deprecatedMethod.js
new file mode 100755
index 0000000..ed40965
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/helpers/deprecatedMethod.js
@@ -0,0 +1,24 @@
+'use strict';
+
+/*eslint no-console:0*/
+
+/**
+ * Supply a warning to the developer that a method they are using
+ * has been deprecated.
+ *
+ * @param {string} method The name of the deprecated method
+ * @param {string} [instead] The alternate method to use if applicable
+ * @param {string} [docs] The documentation URL to get further details
+ */
+module.exports = function deprecatedMethod(method, instead, docs) {
+  try {
+    console.warn(
+      'DEPRECATED method `' + method + '`.' +
+      (instead ? ' Use `' + instead + '` instead.' : '') +
+      ' This method will be removed in a future release.');
+
+    if (docs) {
+      console.warn('For more information about usage see ' + docs);
+    }
+  } catch (e) { /* Ignore */ }
+};
diff --git a/helloworld/node_modules/axios/lib/helpers/isAbsoluteURL.js b/helloworld/node_modules/axios/lib/helpers/isAbsoluteURL.js
new file mode 100755
index 0000000..d33e992
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/helpers/isAbsoluteURL.js
@@ -0,0 +1,14 @@
+'use strict';
+
+/**
+ * Determines whether the specified URL is absolute
+ *
+ * @param {string} url The URL to test
+ * @returns {boolean} True if the specified URL is absolute, otherwise false
+ */
+module.exports = function isAbsoluteURL(url) {
+  // A URL is considered absolute if it begins with "<scheme>://" or "//" (protocol-relative URL).
+  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed
+  // by any combination of letters, digits, plus, period, or hyphen.
+  return /^([a-z][a-z\d\+\-\.]*:)?\/\//i.test(url);
+};
diff --git a/helloworld/node_modules/axios/lib/helpers/isURLSameOrigin.js b/helloworld/node_modules/axios/lib/helpers/isURLSameOrigin.js
new file mode 100755
index 0000000..e292745
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/helpers/isURLSameOrigin.js
@@ -0,0 +1,68 @@
+'use strict';
+
+var utils = require('./../utils');
+
+module.exports = (
+  utils.isStandardBrowserEnv() ?
+
+  // Standard browser envs have full support of the APIs needed to test
+  // whether the request URL is of the same origin as current location.
+  (function standardBrowserEnv() {
+    var msie = /(msie|trident)/i.test(navigator.userAgent);
+    var urlParsingNode = document.createElement('a');
+    var originURL;
+
+    /**
+    * Parse a URL to discover it's components
+    *
+    * @param {String} url The URL to be parsed
+    * @returns {Object}
+    */
+    function resolveURL(url) {
+      var href = url;
+
+      if (msie) {
+        // IE needs attribute set twice to normalize properties
+        urlParsingNode.setAttribute('href', href);
+        href = urlParsingNode.href;
+      }
+
+      urlParsingNode.setAttribute('href', href);
+
+      // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils
+      return {
+        href: urlParsingNode.href,
+        protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',
+        host: urlParsingNode.host,
+        search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '',
+        hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',
+        hostname: urlParsingNode.hostname,
+        port: urlParsingNode.port,
+        pathname: (urlParsingNode.pathname.charAt(0) === '/') ?
+                  urlParsingNode.pathname :
+                  '/' + urlParsingNode.pathname
+      };
+    }
+
+    originURL = resolveURL(window.location.href);
+
+    /**
+    * Determine if a URL shares the same origin as the current location
+    *
+    * @param {String} requestURL The URL to test
+    * @returns {boolean} True if URL shares the same origin, otherwise false
+    */
+    return function isURLSameOrigin(requestURL) {
+      var parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL;
+      return (parsed.protocol === originURL.protocol &&
+            parsed.host === originURL.host);
+    };
+  })() :
+
+  // Non standard browser envs (web workers, react-native) lack needed support.
+  (function nonStandardBrowserEnv() {
+    return function isURLSameOrigin() {
+      return true;
+    };
+  })()
+);
diff --git a/helloworld/node_modules/axios/lib/helpers/normalizeHeaderName.js b/helloworld/node_modules/axios/lib/helpers/normalizeHeaderName.js
new file mode 100755
index 0000000..738c9fe
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/helpers/normalizeHeaderName.js
@@ -0,0 +1,12 @@
+'use strict';
+
+var utils = require('../utils');
+
+module.exports = function normalizeHeaderName(headers, normalizedName) {
+  utils.forEach(headers, function processHeader(value, name) {
+    if (name !== normalizedName && name.toUpperCase() === normalizedName.toUpperCase()) {
+      headers[normalizedName] = value;
+      delete headers[name];
+    }
+  });
+};
diff --git a/helloworld/node_modules/axios/lib/helpers/parseHeaders.js b/helloworld/node_modules/axios/lib/helpers/parseHeaders.js
new file mode 100755
index 0000000..8af2cc7
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/helpers/parseHeaders.js
@@ -0,0 +1,53 @@
+'use strict';
+
+var utils = require('./../utils');
+
+// Headers whose duplicates are ignored by node
+// c.f. https://nodejs.org/api/http.html#http_message_headers
+var ignoreDuplicateOf = [
+  'age', 'authorization', 'content-length', 'content-type', 'etag',
+  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',
+  'last-modified', 'location', 'max-forwards', 'proxy-authorization',
+  'referer', 'retry-after', 'user-agent'
+];
+
+/**
+ * Parse headers into an object
+ *
+ * ```
+ * Date: Wed, 27 Aug 2014 08:58:49 GMT
+ * Content-Type: application/json
+ * Connection: keep-alive
+ * Transfer-Encoding: chunked
+ * ```
+ *
+ * @param {String} headers Headers needing to be parsed
+ * @returns {Object} Headers parsed into an object
+ */
+module.exports = function parseHeaders(headers) {
+  var parsed = {};
+  var key;
+  var val;
+  var i;
+
+  if (!headers) { return parsed; }
+
+  utils.forEach(headers.split('\n'), function parser(line) {
+    i = line.indexOf(':');
+    key = utils.trim(line.substr(0, i)).toLowerCase();
+    val = utils.trim(line.substr(i + 1));
+
+    if (key) {
+      if (parsed[key] && ignoreDuplicateOf.indexOf(key) >= 0) {
+        return;
+      }
+      if (key === 'set-cookie') {
+        parsed[key] = (parsed[key] ? parsed[key] : []).concat([val]);
+      } else {
+        parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
+      }
+    }
+  });
+
+  return parsed;
+};
diff --git a/helloworld/node_modules/axios/lib/helpers/spread.js b/helloworld/node_modules/axios/lib/helpers/spread.js
new file mode 100755
index 0000000..25e3cdd
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/helpers/spread.js
@@ -0,0 +1,27 @@
+'use strict';
+
+/**
+ * Syntactic sugar for invoking a function and expanding an array for arguments.
+ *
+ * Common use case would be to use `Function.prototype.apply`.
+ *
+ *  ```js
+ *  function f(x, y, z) {}
+ *  var args = [1, 2, 3];
+ *  f.apply(null, args);
+ *  ```
+ *
+ * With `spread` this example can be re-written.
+ *
+ *  ```js
+ *  spread(function(x, y, z) {})([1, 2, 3]);
+ *  ```
+ *
+ * @param {Function} callback
+ * @returns {Function}
+ */
+module.exports = function spread(callback) {
+  return function wrap(arr) {
+    return callback.apply(null, arr);
+  };
+};
diff --git a/helloworld/node_modules/axios/lib/utils.js b/helloworld/node_modules/axios/lib/utils.js
new file mode 100755
index 0000000..b3fd865
--- /dev/null
+++ b/helloworld/node_modules/axios/lib/utils.js
@@ -0,0 +1,303 @@
+'use strict';
+
+var bind = require('./helpers/bind');
+var isBuffer = require('is-buffer');
+
+/*global toString:true*/
+
+// utils is a library of generic helper functions non-specific to axios
+
+var toString = Object.prototype.toString;
+
+/**
+ * Determine if a value is an Array
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is an Array, otherwise false
+ */
+function isArray(val) {
+  return toString.call(val) === '[object Array]';
+}
+
+/**
+ * Determine if a value is an ArrayBuffer
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is an ArrayBuffer, otherwise false
+ */
+function isArrayBuffer(val) {
+  return toString.call(val) === '[object ArrayBuffer]';
+}
+
+/**
+ * Determine if a value is a FormData
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is an FormData, otherwise false
+ */
+function isFormData(val) {
+  return (typeof FormData !== 'undefined') && (val instanceof FormData);
+}
+
+/**
+ * Determine if a value is a view on an ArrayBuffer
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false
+ */
+function isArrayBufferView(val) {
+  var result;
+  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {
+    result = ArrayBuffer.isView(val);
+  } else {
+    result = (val) && (val.buffer) && (val.buffer instanceof ArrayBuffer);
+  }
+  return result;
+}
+
+/**
+ * Determine if a value is a String
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a String, otherwise false
+ */
+function isString(val) {
+  return typeof val === 'string';
+}
+
+/**
+ * Determine if a value is a Number
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a Number, otherwise false
+ */
+function isNumber(val) {
+  return typeof val === 'number';
+}
+
+/**
+ * Determine if a value is undefined
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if the value is undefined, otherwise false
+ */
+function isUndefined(val) {
+  return typeof val === 'undefined';
+}
+
+/**
+ * Determine if a value is an Object
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is an Object, otherwise false
+ */
+function isObject(val) {
+  return val !== null && typeof val === 'object';
+}
+
+/**
+ * Determine if a value is a Date
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a Date, otherwise false
+ */
+function isDate(val) {
+  return toString.call(val) === '[object Date]';
+}
+
+/**
+ * Determine if a value is a File
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a File, otherwise false
+ */
+function isFile(val) {
+  return toString.call(val) === '[object File]';
+}
+
+/**
+ * Determine if a value is a Blob
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a Blob, otherwise false
+ */
+function isBlob(val) {
+  return toString.call(val) === '[object Blob]';
+}
+
+/**
+ * Determine if a value is a Function
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a Function, otherwise false
+ */
+function isFunction(val) {
+  return toString.call(val) === '[object Function]';
+}
+
+/**
+ * Determine if a value is a Stream
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a Stream, otherwise false
+ */
+function isStream(val) {
+  return isObject(val) && isFunction(val.pipe);
+}
+
+/**
+ * Determine if a value is a URLSearchParams object
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a URLSearchParams object, otherwise false
+ */
+function isURLSearchParams(val) {
+  return typeof URLSearchParams !== 'undefined' && val instanceof URLSearchParams;
+}
+
+/**
+ * Trim excess whitespace off the beginning and end of a string
+ *
+ * @param {String} str The String to trim
+ * @returns {String} The String freed of excess whitespace
+ */
+function trim(str) {
+  return str.replace(/^\s*/, '').replace(/\s*$/, '');
+}
+
+/**
+ * Determine if we're running in a standard browser environment
+ *
+ * This allows axios to run in a web worker, and react-native.
+ * Both environments support XMLHttpRequest, but not fully standard globals.
+ *
+ * web workers:
+ *  typeof window -> undefined
+ *  typeof document -> undefined
+ *
+ * react-native:
+ *  navigator.product -> 'ReactNative'
+ */
+function isStandardBrowserEnv() {
+  if (typeof navigator !== 'undefined' && navigator.product === 'ReactNative') {
+    return false;
+  }
+  return (
+    typeof window !== 'undefined' &&
+    typeof document !== 'undefined'
+  );
+}
+
+/**
+ * Iterate over an Array or an Object invoking a function for each item.
+ *
+ * If `obj` is an Array callback will be called passing
+ * the value, index, and complete array for each item.
+ *
+ * If 'obj' is an Object callback will be called passing
+ * the value, key, and complete object for each property.
+ *
+ * @param {Object|Array} obj The object to iterate
+ * @param {Function} fn The callback to invoke for each item
+ */
+function forEach(obj, fn) {
+  // Don't bother if no value provided
+  if (obj === null || typeof obj === 'undefined') {
+    return;
+  }
+
+  // Force an array if not already something iterable
+  if (typeof obj !== 'object') {
+    /*eslint no-param-reassign:0*/
+    obj = [obj];
+  }
+
+  if (isArray(obj)) {
+    // Iterate over array values
+    for (var i = 0, l = obj.length; i < l; i++) {
+      fn.call(null, obj[i], i, obj);
+    }
+  } else {
+    // Iterate over object keys
+    for (var key in obj) {
+      if (Object.prototype.hasOwnProperty.call(obj, key)) {
+        fn.call(null, obj[key], key, obj);
+      }
+    }
+  }
+}
+
+/**
+ * Accepts varargs expecting each argument to be an object, then
+ * immutably merges the properties of each object and returns result.
+ *
+ * When multiple objects contain the same key the later object in
+ * the arguments list will take precedence.
+ *
+ * Example:
+ *
+ * ```js
+ * var result = merge({foo: 123}, {foo: 456});
+ * console.log(result.foo); // outputs 456
+ * ```
+ *
+ * @param {Object} obj1 Object to merge
+ * @returns {Object} Result of all merge properties
+ */
+function merge(/* obj1, obj2, obj3, ... */) {
+  var result = {};
+  function assignValue(val, key) {
+    if (typeof result[key] === 'object' && typeof val === 'object') {
+      result[key] = merge(result[key], val);
+    } else {
+      result[key] = val;
+    }
+  }
+
+  for (var i = 0, l = arguments.length; i < l; i++) {
+    forEach(arguments[i], assignValue);
+  }
+  return result;
+}
+
+/**
+ * Extends object a by mutably adding to it the properties of object b.
+ *
+ * @param {Object} a The object to be extended
+ * @param {Object} b The object to copy properties from
+ * @param {Object} thisArg The object to bind function to
+ * @return {Object} The resulting value of object a
+ */
+function extend(a, b, thisArg) {
+  forEach(b, function assignValue(val, key) {
+    if (thisArg && typeof val === 'function') {
+      a[key] = bind(val, thisArg);
+    } else {
+      a[key] = val;
+    }
+  });
+  return a;
+}
+
+module.exports = {
+  isArray: isArray,
+  isArrayBuffer: isArrayBuffer,
+  isBuffer: isBuffer,
+  isFormData: isFormData,
+  isArrayBufferView: isArrayBufferView,
+  isString: isString,
+  isNumber: isNumber,
+  isObject: isObject,
+  isUndefined: isUndefined,
+  isDate: isDate,
+  isFile: isFile,
+  isBlob: isBlob,
+  isFunction: isFunction,
+  isStream: isStream,
+  isURLSearchParams: isURLSearchParams,
+  isStandardBrowserEnv: isStandardBrowserEnv,
+  forEach: forEach,
+  merge: merge,
+  extend: extend,
+  trim: trim
+};
diff --git a/helloworld/node_modules/axios/package.json b/helloworld/node_modules/axios/package.json
new file mode 100755
index 0000000..e4f5e02
--- /dev/null
+++ b/helloworld/node_modules/axios/package.json
@@ -0,0 +1,112 @@
+{
+  "_from": "axios@0.17.1",
+  "_id": "axios@0.17.1",
+  "_inBundle": false,
+  "_integrity": "sha1-LY4+XQvb1zJ/kbyBT1xXZg+Bgk0=",
+  "_location": "/axios",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "axios@0.17.1",
+    "name": "axios",
+    "escapedName": "axios",
+    "rawSpec": "0.17.1",
+    "saveSpec": null,
+    "fetchSpec": "0.17.1"
+  },
+  "_requiredBy": [
+    "/localtunnel"
+  ],
+  "_resolved": "https://registry.npmjs.org/axios/-/axios-0.17.1.tgz",
+  "_shasum": "2d8e3e5d0bdbd7327f91bc814f5c57660f81824d",
+  "_spec": "axios@0.17.1",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/localtunnel",
+  "author": {
+    "name": "Matt Zabriskie"
+  },
+  "browser": {
+    "./lib/adapters/http.js": "./lib/adapters/xhr.js"
+  },
+  "bugs": {
+    "url": "https://github.com/axios/axios/issues"
+  },
+  "bundleDependencies": false,
+  "bundlesize": [
+    {
+      "path": "./dist/axios.min.js",
+      "threshold": "5kB"
+    }
+  ],
+  "dependencies": {
+    "follow-redirects": "^1.2.5",
+    "is-buffer": "^1.1.5"
+  },
+  "deprecated": false,
+  "description": "Promise based HTTP client for the browser and node.js",
+  "devDependencies": {
+    "bundlesize": "^0.5.7",
+    "coveralls": "^2.11.9",
+    "es6-promise": "^4.0.5",
+    "grunt": "^1.0.1",
+    "grunt-banner": "^0.6.0",
+    "grunt-cli": "^1.2.0",
+    "grunt-contrib-clean": "^1.0.0",
+    "grunt-contrib-nodeunit": "^1.0.0",
+    "grunt-contrib-watch": "^1.0.0",
+    "grunt-eslint": "^19.0.0",
+    "grunt-karma": "^2.0.0",
+    "grunt-ts": "^6.0.0-beta.3",
+    "grunt-webpack": "^1.0.18",
+    "istanbul-instrumenter-loader": "^1.0.0",
+    "jasmine-core": "^2.4.1",
+    "karma": "^1.3.0",
+    "karma-chrome-launcher": "^2.0.0",
+    "karma-coverage": "^1.0.0",
+    "karma-firefox-launcher": "^1.0.0",
+    "karma-jasmine": "^1.0.2",
+    "karma-jasmine-ajax": "^0.1.13",
+    "karma-opera-launcher": "^1.0.0",
+    "karma-phantomjs-launcher": "^1.0.0",
+    "karma-safari-launcher": "^1.0.0",
+    "karma-sauce-launcher": "^1.1.0",
+    "karma-sinon": "^1.0.5",
+    "karma-sourcemap-loader": "^0.3.7",
+    "karma-webpack": "^1.7.0",
+    "load-grunt-tasks": "^3.5.2",
+    "minimist": "^1.2.0",
+    "phantomjs-prebuilt": "^2.1.7",
+    "sinon": "^1.17.4",
+    "typescript": "^2.0.3",
+    "url-search-params": "^0.6.1",
+    "webpack": "^1.13.1",
+    "webpack-dev-server": "^1.14.1"
+  },
+  "homepage": "https://github.com/axios/axios",
+  "keywords": [
+    "xhr",
+    "http",
+    "ajax",
+    "promise",
+    "node"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "name": "axios",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/axios/axios.git"
+  },
+  "scripts": {
+    "build": "NODE_ENV=production grunt build",
+    "coveralls": "cat coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js",
+    "examples": "node ./examples/server.js",
+    "postversion": "git push && git push --tags",
+    "preversion": "npm test",
+    "start": "node ./sandbox/server.js",
+    "test": "grunt test && bundlesize",
+    "version": "npm run build && grunt version && git add -A dist && git add CHANGELOG.md bower.json package.json"
+  },
+  "typings": "./index.d.ts",
+  "version": "0.17.1"
+}
diff --git a/helloworld/node_modules/backo2/History.md b/helloworld/node_modules/backo2/History.md
new file mode 100755
index 0000000..8eb28b8
--- /dev/null
+++ b/helloworld/node_modules/backo2/History.md
@@ -0,0 +1,12 @@
+
+1.0.1 / 2014-02-17
+==================
+
+ * go away decimal point
+ * history
+
+1.0.0 / 2014-02-17
+==================
+
+ * add jitter option
+ * Initial commit
diff --git a/helloworld/node_modules/backo2/Makefile b/helloworld/node_modules/backo2/Makefile
new file mode 100755
index 0000000..9987df8
--- /dev/null
+++ b/helloworld/node_modules/backo2/Makefile
@@ -0,0 +1,8 @@
+
+test:
+	@./node_modules/.bin/mocha \
+		--require should \
+		--reporter dot \
+		--bail
+
+.PHONY: test
\ No newline at end of file
diff --git a/helloworld/node_modules/backo2/Readme.md b/helloworld/node_modules/backo2/Readme.md
new file mode 100755
index 0000000..0df2a39
--- /dev/null
+++ b/helloworld/node_modules/backo2/Readme.md
@@ -0,0 +1,34 @@
+# backo
+
+  Simple exponential backoff because the others seem to have weird abstractions.
+
+## Installation
+
+```
+$ npm install backo
+```
+
+## Options
+
+ - `min` initial timeout in milliseconds [100]
+ - `max` max timeout [10000]
+ - `jitter` [0]
+ - `factor` [2]
+
+## Example
+
+```js
+var Backoff = require('backo');
+var backoff = new Backoff({ min: 100, max: 20000 });
+
+setTimeout(function(){
+  something.reconnect();
+}, backoff.duration());
+
+// later when something works
+backoff.reset()
+```
+
+# License
+
+  MIT
diff --git a/helloworld/node_modules/backo2/component.json b/helloworld/node_modules/backo2/component.json
new file mode 100755
index 0000000..994845a
--- /dev/null
+++ b/helloworld/node_modules/backo2/component.json
@@ -0,0 +1,11 @@
+{
+  "name": "backo",
+  "repo": "segmentio/backo",
+  "dependencies": {},
+  "version": "1.0.1",
+  "description": "simple backoff without the weird abstractions",
+  "keywords": ["backoff"],
+  "license": "MIT",
+  "scripts": ["index.js"],
+  "main": "index.js"
+}
diff --git a/helloworld/node_modules/backo2/index.js b/helloworld/node_modules/backo2/index.js
new file mode 100755
index 0000000..fac4429
--- /dev/null
+++ b/helloworld/node_modules/backo2/index.js
@@ -0,0 +1,85 @@
+
+/**
+ * Expose `Backoff`.
+ */
+
+module.exports = Backoff;
+
+/**
+ * Initialize backoff timer with `opts`.
+ *
+ * - `min` initial timeout in milliseconds [100]
+ * - `max` max timeout [10000]
+ * - `jitter` [0]
+ * - `factor` [2]
+ *
+ * @param {Object} opts
+ * @api public
+ */
+
+function Backoff(opts) {
+  opts = opts || {};
+  this.ms = opts.min || 100;
+  this.max = opts.max || 10000;
+  this.factor = opts.factor || 2;
+  this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;
+  this.attempts = 0;
+}
+
+/**
+ * Return the backoff duration.
+ *
+ * @return {Number}
+ * @api public
+ */
+
+Backoff.prototype.duration = function(){
+  var ms = this.ms * Math.pow(this.factor, this.attempts++);
+  if (this.jitter) {
+    var rand =  Math.random();
+    var deviation = Math.floor(rand * this.jitter * ms);
+    ms = (Math.floor(rand * 10) & 1) == 0  ? ms - deviation : ms + deviation;
+  }
+  return Math.min(ms, this.max) | 0;
+};
+
+/**
+ * Reset the number of attempts.
+ *
+ * @api public
+ */
+
+Backoff.prototype.reset = function(){
+  this.attempts = 0;
+};
+
+/**
+ * Set the minimum duration
+ *
+ * @api public
+ */
+
+Backoff.prototype.setMin = function(min){
+  this.ms = min;
+};
+
+/**
+ * Set the maximum duration
+ *
+ * @api public
+ */
+
+Backoff.prototype.setMax = function(max){
+  this.max = max;
+};
+
+/**
+ * Set the jitter
+ *
+ * @api public
+ */
+
+Backoff.prototype.setJitter = function(jitter){
+  this.jitter = jitter;
+};
+
diff --git a/helloworld/node_modules/backo2/package.json b/helloworld/node_modules/backo2/package.json
new file mode 100755
index 0000000..8127be2
--- /dev/null
+++ b/helloworld/node_modules/backo2/package.json
@@ -0,0 +1,47 @@
+{
+  "_from": "backo2@1.0.2",
+  "_id": "backo2@1.0.2",
+  "_inBundle": false,
+  "_integrity": "sha1-MasayLEpNjRj41s+u2n038+6eUc=",
+  "_location": "/backo2",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "backo2@1.0.2",
+    "name": "backo2",
+    "escapedName": "backo2",
+    "rawSpec": "1.0.2",
+    "saveSpec": null,
+    "fetchSpec": "1.0.2"
+  },
+  "_requiredBy": [
+    "/socket.io-client"
+  ],
+  "_resolved": "https://registry.npmjs.org/backo2/-/backo2-1.0.2.tgz",
+  "_shasum": "31ab1ac8b129363463e35b3ebb69f4dfcfba7947",
+  "_spec": "backo2@1.0.2",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/socket.io-client",
+  "bugs": {
+    "url": "https://github.com/mokesmokes/backo/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {},
+  "deprecated": false,
+  "description": "simple backoff based on segmentio/backo",
+  "devDependencies": {
+    "mocha": "*",
+    "should": "*"
+  },
+  "homepage": "https://github.com/mokesmokes/backo#readme",
+  "keywords": [
+    "backoff"
+  ],
+  "license": "MIT",
+  "name": "backo2",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/mokesmokes/backo.git"
+  },
+  "version": "1.0.2"
+}
diff --git a/helloworld/node_modules/backo2/test/index.js b/helloworld/node_modules/backo2/test/index.js
new file mode 100755
index 0000000..ea1f6de
--- /dev/null
+++ b/helloworld/node_modules/backo2/test/index.js
@@ -0,0 +1,18 @@
+
+var Backoff = require('..');
+var assert = require('assert');
+
+describe('.duration()', function(){
+  it('should increase the backoff', function(){
+    var b = new Backoff;
+
+    assert(100 == b.duration());
+    assert(200 == b.duration());
+    assert(400 == b.duration());
+    assert(800 == b.duration());
+
+    b.reset();
+    assert(100 == b.duration());
+    assert(200 == b.duration());
+  })
+})
\ No newline at end of file
diff --git a/helloworld/node_modules/base64-arraybuffer/LICENSE-MIT b/helloworld/node_modules/base64-arraybuffer/LICENSE-MIT
new file mode 100755
index 0000000..ed27b41
--- /dev/null
+++ b/helloworld/node_modules/base64-arraybuffer/LICENSE-MIT
@@ -0,0 +1,22 @@
+Copyright (c) 2012 Niklas von Hertzen
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/base64-arraybuffer/README.md b/helloworld/node_modules/base64-arraybuffer/README.md
new file mode 100755
index 0000000..50009e4
--- /dev/null
+++ b/helloworld/node_modules/base64-arraybuffer/README.md
@@ -0,0 +1,20 @@
+# base64-arraybuffer
+
+[![Build Status](https://travis-ci.org/niklasvh/base64-arraybuffer.png)](https://travis-ci.org/niklasvh/base64-arraybuffer)
+[![NPM Downloads](https://img.shields.io/npm/dm/base64-arraybuffer.svg)](https://www.npmjs.org/package/base64-arraybuffer)
+[![NPM Version](https://img.shields.io/npm/v/base64-arraybuffer.svg)](https://www.npmjs.org/package/base64-arraybuffer)
+
+Encode/decode base64 data into ArrayBuffers
+
+## Getting Started
+Install the module with: `npm install base64-arraybuffer`
+
+## API
+The library encodes and decodes base64 to and from ArrayBuffers
+
+ - __encode(buffer)__ - Encodes `ArrayBuffer` into base64 string
+ - __decode(str)__ - Decodes base64 string to `ArrayBuffer`
+
+## License
+Copyright (c) 2012 Niklas von Hertzen
+Licensed under the MIT license.
diff --git a/helloworld/node_modules/base64-arraybuffer/lib/base64-arraybuffer.js b/helloworld/node_modules/base64-arraybuffer/lib/base64-arraybuffer.js
new file mode 100755
index 0000000..e6b6306
--- /dev/null
+++ b/helloworld/node_modules/base64-arraybuffer/lib/base64-arraybuffer.js
@@ -0,0 +1,67 @@
+/*
+ * base64-arraybuffer
+ * https://github.com/niklasvh/base64-arraybuffer
+ *
+ * Copyright (c) 2012 Niklas von Hertzen
+ * Licensed under the MIT license.
+ */
+(function(){
+  "use strict";
+
+  var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+  // Use a lookup table to find the index.
+  var lookup = new Uint8Array(256);
+  for (var i = 0; i < chars.length; i++) {
+    lookup[chars.charCodeAt(i)] = i;
+  }
+
+  exports.encode = function(arraybuffer) {
+    var bytes = new Uint8Array(arraybuffer),
+    i, len = bytes.length, base64 = "";
+
+    for (i = 0; i < len; i+=3) {
+      base64 += chars[bytes[i] >> 2];
+      base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
+      base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
+      base64 += chars[bytes[i + 2] & 63];
+    }
+
+    if ((len % 3) === 2) {
+      base64 = base64.substring(0, base64.length - 1) + "=";
+    } else if (len % 3 === 1) {
+      base64 = base64.substring(0, base64.length - 2) + "==";
+    }
+
+    return base64;
+  };
+
+  exports.decode =  function(base64) {
+    var bufferLength = base64.length * 0.75,
+    len = base64.length, i, p = 0,
+    encoded1, encoded2, encoded3, encoded4;
+
+    if (base64[base64.length - 1] === "=") {
+      bufferLength--;
+      if (base64[base64.length - 2] === "=") {
+        bufferLength--;
+      }
+    }
+
+    var arraybuffer = new ArrayBuffer(bufferLength),
+    bytes = new Uint8Array(arraybuffer);
+
+    for (i = 0; i < len; i+=4) {
+      encoded1 = lookup[base64.charCodeAt(i)];
+      encoded2 = lookup[base64.charCodeAt(i+1)];
+      encoded3 = lookup[base64.charCodeAt(i+2)];
+      encoded4 = lookup[base64.charCodeAt(i+3)];
+
+      bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
+      bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
+      bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
+    }
+
+    return arraybuffer;
+  };
+})();
diff --git a/helloworld/node_modules/base64-arraybuffer/package.json b/helloworld/node_modules/base64-arraybuffer/package.json
new file mode 100755
index 0000000..39dae53
--- /dev/null
+++ b/helloworld/node_modules/base64-arraybuffer/package.json
@@ -0,0 +1,65 @@
+{
+  "_from": "base64-arraybuffer@0.1.5",
+  "_id": "base64-arraybuffer@0.1.5",
+  "_inBundle": false,
+  "_integrity": "sha1-c5JncZI7Whl0etZmqlzUv5xunOg=",
+  "_location": "/base64-arraybuffer",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "base64-arraybuffer@0.1.5",
+    "name": "base64-arraybuffer",
+    "escapedName": "base64-arraybuffer",
+    "rawSpec": "0.1.5",
+    "saveSpec": null,
+    "fetchSpec": "0.1.5"
+  },
+  "_requiredBy": [
+    "/engine.io-parser",
+    "/socket.io-client"
+  ],
+  "_resolved": "https://registry.npmjs.org/base64-arraybuffer/-/base64-arraybuffer-0.1.5.tgz",
+  "_shasum": "73926771923b5a19747ad666aa5cd4bf9c6e9ce8",
+  "_spec": "base64-arraybuffer@0.1.5",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/engine.io-parser",
+  "author": {
+    "name": "Niklas von Hertzen",
+    "email": "niklasvh@gmail.com",
+    "url": "http://hertzen.com"
+  },
+  "bugs": {
+    "url": "https://github.com/niklasvh/base64-arraybuffer/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "Encode/decode base64 data into ArrayBuffers",
+  "devDependencies": {
+    "grunt": "^0.4.5",
+    "grunt-cli": "^0.1.13",
+    "grunt-contrib-jshint": "^0.11.2",
+    "grunt-contrib-nodeunit": "^0.4.1",
+    "grunt-contrib-watch": "^0.6.1"
+  },
+  "engines": {
+    "node": ">= 0.6.0"
+  },
+  "homepage": "https://github.com/niklasvh/base64-arraybuffer",
+  "keywords": [],
+  "licenses": [
+    {
+      "type": "MIT",
+      "url": "https://github.com/niklasvh/base64-arraybuffer/blob/master/LICENSE-MIT"
+    }
+  ],
+  "main": "lib/base64-arraybuffer",
+  "name": "base64-arraybuffer",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/niklasvh/base64-arraybuffer.git"
+  },
+  "scripts": {
+    "test": "grunt nodeunit"
+  },
+  "version": "0.1.5"
+}
diff --git a/helloworld/node_modules/base64id/LICENSE b/helloworld/node_modules/base64id/LICENSE
new file mode 100755
index 0000000..0d03c83
--- /dev/null
+++ b/helloworld/node_modules/base64id/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2012-2016 Kristian Faeldt <faeldt_kristian@cyberagent.co.jp>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/base64id/README.md b/helloworld/node_modules/base64id/README.md
new file mode 100755
index 0000000..17689e6
--- /dev/null
+++ b/helloworld/node_modules/base64id/README.md
@@ -0,0 +1,18 @@
+base64id
+========
+
+Node.js module that generates a base64 id.
+
+Uses crypto.randomBytes when available, falls back to unsafe methods for node.js <= 0.4.
+
+To increase performance, random bytes are buffered to minimize the number of synchronous calls to crypto.randomBytes.
+
+## Installation
+
+   $ npm install base64id
+
+## Usage
+
+   var base64id = require('base64id');
+
+   var id = base64id.generateId();
diff --git a/helloworld/node_modules/base64id/lib/base64id.js b/helloworld/node_modules/base64id/lib/base64id.js
new file mode 100755
index 0000000..f688159
--- /dev/null
+++ b/helloworld/node_modules/base64id/lib/base64id.js
@@ -0,0 +1,103 @@
+/*!
+ * base64id v0.1.0
+ */
+
+/**
+ * Module dependencies
+ */
+
+var crypto = require('crypto');
+
+/**
+ * Constructor
+ */
+
+var Base64Id = function() { };
+
+/**
+ * Get random bytes
+ *
+ * Uses a buffer if available, falls back to crypto.randomBytes
+ */
+
+Base64Id.prototype.getRandomBytes = function(bytes) {
+
+  var BUFFER_SIZE = 4096
+  var self = this;  
+  
+  bytes = bytes || 12;
+
+  if (bytes > BUFFER_SIZE) {
+    return crypto.randomBytes(bytes);
+  }
+  
+  var bytesInBuffer = parseInt(BUFFER_SIZE/bytes);
+  var threshold = parseInt(bytesInBuffer*0.85);
+
+  if (!threshold) {
+    return crypto.randomBytes(bytes);
+  }
+
+  if (this.bytesBufferIndex == null) {
+     this.bytesBufferIndex = -1;
+  }
+
+  if (this.bytesBufferIndex == bytesInBuffer) {
+    this.bytesBuffer = null;
+    this.bytesBufferIndex = -1;
+  }
+
+  // No buffered bytes available or index above threshold
+  if (this.bytesBufferIndex == -1 || this.bytesBufferIndex > threshold) {
+     
+    if (!this.isGeneratingBytes) {
+      this.isGeneratingBytes = true;
+      crypto.randomBytes(BUFFER_SIZE, function(err, bytes) {
+        self.bytesBuffer = bytes;
+        self.bytesBufferIndex = 0;
+        self.isGeneratingBytes = false;
+      }); 
+    }
+    
+    // Fall back to sync call when no buffered bytes are available
+    if (this.bytesBufferIndex == -1) {
+      return crypto.randomBytes(bytes);
+    }
+  }
+  
+  var result = this.bytesBuffer.slice(bytes*this.bytesBufferIndex, bytes*(this.bytesBufferIndex+1)); 
+  this.bytesBufferIndex++; 
+  
+  return result;
+}
+
+/**
+ * Generates a base64 id
+ *
+ * (Original version from socket.io <http://socket.io>)
+ */
+
+Base64Id.prototype.generateId = function () {
+  var rand = new Buffer(15); // multiple of 3 for base64
+  if (!rand.writeInt32BE) {
+    return Math.abs(Math.random() * Math.random() * Date.now() | 0).toString()
+      + Math.abs(Math.random() * Math.random() * Date.now() | 0).toString();
+  }
+  this.sequenceNumber = (this.sequenceNumber + 1) | 0;
+  rand.writeInt32BE(this.sequenceNumber, 11);
+  if (crypto.randomBytes) {
+    this.getRandomBytes(12).copy(rand);
+  } else {
+    // not secure for node 0.4
+    [0, 4, 8].forEach(function(i) {
+      rand.writeInt32BE(Math.random() * Math.pow(2, 32) | 0, i);
+    });
+  }
+  return rand.toString('base64').replace(/\//g, '_').replace(/\+/g, '-');
+};
+
+/**
+ * Export
+ */
+
+exports = module.exports = new Base64Id();
diff --git a/helloworld/node_modules/base64id/package.json b/helloworld/node_modules/base64id/package.json
new file mode 100755
index 0000000..be67e97
--- /dev/null
+++ b/helloworld/node_modules/base64id/package.json
@@ -0,0 +1,47 @@
+{
+  "_from": "base64id@1.0.0",
+  "_id": "base64id@1.0.0",
+  "_inBundle": false,
+  "_integrity": "sha1-R2iMuZu2gE8OBtPnY7HDLlfY5rY=",
+  "_location": "/base64id",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "base64id@1.0.0",
+    "name": "base64id",
+    "escapedName": "base64id",
+    "rawSpec": "1.0.0",
+    "saveSpec": null,
+    "fetchSpec": "1.0.0"
+  },
+  "_requiredBy": [
+    "/engine.io"
+  ],
+  "_resolved": "https://registry.npmjs.org/base64id/-/base64id-1.0.0.tgz",
+  "_shasum": "47688cb99bb6804f0e06d3e763b1c32e57d8e6b6",
+  "_spec": "base64id@1.0.0",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/engine.io",
+  "author": {
+    "name": "Kristian Faeldt",
+    "email": "faeldt_kristian@cyberagent.co.jp"
+  },
+  "bugs": {
+    "url": "https://github.com/faeldt/base64id/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "Generates a base64 id",
+  "engines": {
+    "node": ">= 0.4.0"
+  },
+  "homepage": "https://github.com/faeldt/base64id#readme",
+  "license": "MIT",
+  "main": "./lib/base64id.js",
+  "name": "base64id",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/faeldt/base64id.git"
+  },
+  "version": "1.0.0"
+}
diff --git a/helloworld/node_modules/better-assert/History.md b/helloworld/node_modules/better-assert/History.md
new file mode 100755
index 0000000..cbb579b
--- /dev/null
+++ b/helloworld/node_modules/better-assert/History.md
@@ -0,0 +1,15 @@
+
+1.0.0 / 2013-02-03 
+==================
+
+  * Stop using the removed magic __stack global getter
+
+0.1.0 / 2012-10-04 
+==================
+
+  * add throwing of AssertionError for test frameworks etc
+
+0.0.1 / 2010-01-03
+==================
+
+  * Initial release
diff --git a/helloworld/node_modules/better-assert/Makefile b/helloworld/node_modules/better-assert/Makefile
new file mode 100755
index 0000000..36a3ed7
--- /dev/null
+++ b/helloworld/node_modules/better-assert/Makefile
@@ -0,0 +1,5 @@
+
+test:
+	@echo "populate me"
+
+.PHONY: test
\ No newline at end of file
diff --git a/helloworld/node_modules/better-assert/Readme.md b/helloworld/node_modules/better-assert/Readme.md
new file mode 100755
index 0000000..d8d3a63
--- /dev/null
+++ b/helloworld/node_modules/better-assert/Readme.md
@@ -0,0 +1,61 @@
+
+# better-assert
+
+  Better c-style assertions using [callsite](https://github.com/visionmedia/callsite) for
+  self-documenting failure messages.
+
+## Installation
+
+    $ npm install better-assert
+
+## Example
+
+ By default assertions are enabled, however the __NO_ASSERT__ environment variable 
+ will deactivate them when truthy.
+
+```js
+var assert = require('better-assert');
+
+test();
+
+function test() {
+  var user = { name: 'tobi' };
+  assert('tobi' == user.name);
+  assert('number' == typeof user.age);
+}
+
+AssertionError: 'number' == typeof user.age
+    at test (/Users/tj/projects/better-assert/example.js:9:3)
+    at Object.<anonymous> (/Users/tj/projects/better-assert/example.js:4:1)
+    at Module._compile (module.js:449:26)
+    at Object.Module._extensions..js (module.js:467:10)
+    at Module.load (module.js:356:32)
+    at Function.Module._load (module.js:312:12)
+    at Module.runMain (module.js:492:10)
+    at process.startup.processNextTick.process._tickCallback (node.js:244:9)
+```
+
+## License 
+
+(The MIT License)
+
+Copyright (c) 2012 TJ Holowaychuk &lt;tj@vision-media.ca&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/helloworld/node_modules/better-assert/example.js b/helloworld/node_modules/better-assert/example.js
new file mode 100755
index 0000000..688c29e
--- /dev/null
+++ b/helloworld/node_modules/better-assert/example.js
@@ -0,0 +1,10 @@
+
+var assert = require('./');
+
+test();
+
+function test() {
+  var user = { name: 'tobi' };
+  assert('tobi' == user.name);
+  assert('number' == typeof user.age);
+}
\ No newline at end of file
diff --git a/helloworld/node_modules/better-assert/index.js b/helloworld/node_modules/better-assert/index.js
new file mode 100755
index 0000000..fd1c9b7
--- /dev/null
+++ b/helloworld/node_modules/better-assert/index.js
@@ -0,0 +1,38 @@
+/**
+ * Module dependencies.
+ */
+
+var AssertionError = require('assert').AssertionError
+  , callsite = require('callsite')
+  , fs = require('fs')
+
+/**
+ * Expose `assert`.
+ */
+
+module.exports = process.env.NO_ASSERT
+  ? function(){}
+  : assert;
+
+/**
+ * Assert the given `expr`.
+ */
+
+function assert(expr) {
+  if (expr) return;
+
+  var stack = callsite();
+  var call = stack[1];
+  var file = call.getFileName();
+  var lineno = call.getLineNumber();
+  var src = fs.readFileSync(file, 'utf8');
+  var line = src.split('\n')[lineno-1];
+  var src = line.match(/assert\((.*)\)/)[1];
+
+  var err = new AssertionError({
+    message: src,
+    stackStartFunction: stack[0].getFunction()
+  });
+
+  throw err;
+}
diff --git a/helloworld/node_modules/better-assert/package.json b/helloworld/node_modules/better-assert/package.json
new file mode 100755
index 0000000..0febc42
--- /dev/null
+++ b/helloworld/node_modules/better-assert/package.json
@@ -0,0 +1,65 @@
+{
+  "_from": "better-assert@~1.0.0",
+  "_id": "better-assert@1.0.2",
+  "_inBundle": false,
+  "_integrity": "sha1-QIZrnhueC1W0gYlDEeaPr/rrxSI=",
+  "_location": "/better-assert",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "better-assert@~1.0.0",
+    "name": "better-assert",
+    "escapedName": "better-assert",
+    "rawSpec": "~1.0.0",
+    "saveSpec": null,
+    "fetchSpec": "~1.0.0"
+  },
+  "_requiredBy": [
+    "/parseqs",
+    "/parseuri"
+  ],
+  "_resolved": "https://registry.npmjs.org/better-assert/-/better-assert-1.0.2.tgz",
+  "_shasum": "40866b9e1b9e0b55b481894311e68faffaebc522",
+  "_spec": "better-assert@~1.0.0",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/parseqs",
+  "author": {
+    "name": "TJ Holowaychuk",
+    "email": "tj@vision-media.ca"
+  },
+  "bugs": {
+    "url": "https://github.com/visionmedia/better-assert/issues"
+  },
+  "bundleDependencies": false,
+  "contributors": [
+    {
+      "name": "TonyHe",
+      "email": "coolhzb@163.com"
+    },
+    {
+      "name": "ForbesLindesay"
+    }
+  ],
+  "dependencies": {
+    "callsite": "1.0.0"
+  },
+  "deprecated": false,
+  "description": "Better assertions for node, reporting the expr, filename, lineno etc",
+  "engines": {
+    "node": "*"
+  },
+  "homepage": "https://github.com/visionmedia/better-assert#readme",
+  "keywords": [
+    "assert",
+    "stack",
+    "trace",
+    "debug"
+  ],
+  "main": "index",
+  "name": "better-assert",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/visionmedia/better-assert.git"
+  },
+  "version": "1.0.2"
+}
diff --git a/helloworld/node_modules/blob/LICENSE b/helloworld/node_modules/blob/LICENSE
new file mode 100755
index 0000000..aa31544
--- /dev/null
+++ b/helloworld/node_modules/blob/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (C) 2014 Rase-
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/helloworld/node_modules/blob/Makefile b/helloworld/node_modules/blob/Makefile
new file mode 100755
index 0000000..e886c41
--- /dev/null
+++ b/helloworld/node_modules/blob/Makefile
@@ -0,0 +1,14 @@
+REPORTER = dot
+
+build: blob.js
+
+blob.js:
+	@./node_modules/.bin/browserify --standalone blob index.js > blob.js
+
+test:
+	@./node_modules/.bin/zuul -- test/index.js
+
+clean:
+	rm blob.js
+
+.PHONY: test blob.js
diff --git a/helloworld/node_modules/blob/README.md b/helloworld/node_modules/blob/README.md
new file mode 100755
index 0000000..4073ce9
--- /dev/null
+++ b/helloworld/node_modules/blob/README.md
@@ -0,0 +1,21 @@
+# Blob
+
+A cross-browser `Blob` that falls back to `BlobBuilder` when appropriate.
+If neither is available, it exports `undefined`.
+
+## Installation
+
+``` bash
+$ npm install blob
+```
+
+## Example
+
+``` js
+var Blob = require('blob');
+var b = new Blob(['hi', 'constructing', 'a', 'blob']);
+```
+
+## License
+
+MIT
diff --git a/helloworld/node_modules/blob/component.json b/helloworld/node_modules/blob/component.json
new file mode 100755
index 0000000..0f3a481
--- /dev/null
+++ b/helloworld/node_modules/blob/component.json
@@ -0,0 +1,11 @@
+{
+  "name": "blob",
+  "repo": "webmodules/blob",
+  "description": "Abstracts out Blob and uses BlobBulder in cases where it is supported with any vendor prefix.",
+  "version": "0.0.4",
+  "license": "MIT",
+  "dependencies": {},
+  "scripts": [
+    "index.js"
+  ]
+}
diff --git a/helloworld/node_modules/blob/index.js b/helloworld/node_modules/blob/index.js
new file mode 100755
index 0000000..ee179d7
--- /dev/null
+++ b/helloworld/node_modules/blob/index.js
@@ -0,0 +1,100 @@
+/**
+ * Create a blob builder even when vendor prefixes exist
+ */
+
+var BlobBuilder = typeof BlobBuilder !== 'undefined' ? BlobBuilder :
+  typeof WebKitBlobBuilder !== 'undefined' ? WebKitBlobBuilder :
+  typeof MSBlobBuilder !== 'undefined' ? MSBlobBuilder :
+  typeof MozBlobBuilder !== 'undefined' ? MozBlobBuilder : 
+  false;
+
+/**
+ * Check if Blob constructor is supported
+ */
+
+var blobSupported = (function() {
+  try {
+    var a = new Blob(['hi']);
+    return a.size === 2;
+  } catch(e) {
+    return false;
+  }
+})();
+
+/**
+ * Check if Blob constructor supports ArrayBufferViews
+ * Fails in Safari 6, so we need to map to ArrayBuffers there.
+ */
+
+var blobSupportsArrayBufferView = blobSupported && (function() {
+  try {
+    var b = new Blob([new Uint8Array([1,2])]);
+    return b.size === 2;
+  } catch(e) {
+    return false;
+  }
+})();
+
+/**
+ * Check if BlobBuilder is supported
+ */
+
+var blobBuilderSupported = BlobBuilder
+  && BlobBuilder.prototype.append
+  && BlobBuilder.prototype.getBlob;
+
+/**
+ * Helper function that maps ArrayBufferViews to ArrayBuffers
+ * Used by BlobBuilder constructor and old browsers that didn't
+ * support it in the Blob constructor.
+ */
+
+function mapArrayBufferViews(ary) {
+  return ary.map(function(chunk) {
+    if (chunk.buffer instanceof ArrayBuffer) {
+      var buf = chunk.buffer;
+
+      // if this is a subarray, make a copy so we only
+      // include the subarray region from the underlying buffer
+      if (chunk.byteLength !== buf.byteLength) {
+        var copy = new Uint8Array(chunk.byteLength);
+        copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));
+        buf = copy.buffer;
+      }
+
+      return buf;
+    }
+
+    return chunk;
+  });
+}
+
+function BlobBuilderConstructor(ary, options) {
+  options = options || {};
+
+  var bb = new BlobBuilder();
+  mapArrayBufferViews(ary).forEach(function(part) {
+    bb.append(part);
+  });
+
+  return (options.type) ? bb.getBlob(options.type) : bb.getBlob();
+};
+
+function BlobConstructor(ary, options) {
+  return new Blob(mapArrayBufferViews(ary), options || {});
+};
+
+if (typeof Blob !== 'undefined') {
+  BlobBuilderConstructor.prototype = Blob.prototype;
+  BlobConstructor.prototype = Blob.prototype;
+}
+
+module.exports = (function() {
+  if (blobSupported) {
+    return blobSupportsArrayBufferView ? Blob : BlobConstructor;
+  } else if (blobBuilderSupported) {
+    return BlobBuilderConstructor;
+  } else {
+    return undefined;
+  }
+})();
diff --git a/helloworld/node_modules/blob/package.json b/helloworld/node_modules/blob/package.json
new file mode 100755
index 0000000..12e3da0
--- /dev/null
+++ b/helloworld/node_modules/blob/package.json
@@ -0,0 +1,49 @@
+{
+  "_from": "blob@0.0.5",
+  "_id": "blob@0.0.5",
+  "_inBundle": false,
+  "_integrity": "sha512-gaqbzQPqOoamawKg0LGVd7SzLgXS+JH61oWprSLH+P+abTczqJbhTR8CmJ2u9/bUYNmHTGJx/UEmn6doAvvuig==",
+  "_location": "/blob",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "blob@0.0.5",
+    "name": "blob",
+    "escapedName": "blob",
+    "rawSpec": "0.0.5",
+    "saveSpec": null,
+    "fetchSpec": "0.0.5"
+  },
+  "_requiredBy": [
+    "/engine.io-parser"
+  ],
+  "_resolved": "https://registry.npmjs.org/blob/-/blob-0.0.5.tgz",
+  "_shasum": "d680eeef25f8cd91ad533f5b01eed48e64caf683",
+  "_spec": "blob@0.0.5",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/engine.io-parser",
+  "bugs": {
+    "url": "https://github.com/webmodules/blob/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {},
+  "deprecated": false,
+  "description": "Abstracts out Blob and uses BlobBulder in cases where it is supported with any vendor prefix.",
+  "devDependencies": {
+    "browserify": "4.2.3",
+    "expect.js": "0.2.0",
+    "mocha": "1.17.1",
+    "zuul": "1.10.2"
+  },
+  "homepage": "https://github.com/webmodules/blob",
+  "license": "MIT",
+  "name": "blob",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/webmodules/blob.git"
+  },
+  "scripts": {
+    "test": "make test"
+  },
+  "version": "0.0.5"
+}
diff --git a/helloworld/node_modules/blob/test/index.js b/helloworld/node_modules/blob/test/index.js
new file mode 100755
index 0000000..fe9105e
--- /dev/null
+++ b/helloworld/node_modules/blob/test/index.js
@@ -0,0 +1,100 @@
+var Blob = require('../');
+var expect = require('expect.js');
+
+describe('blob', function() {
+  if (!Blob) {
+    it('should not have a blob or a blob builder in the global namespace, or blob should not be a constructor function if the module exports false', function() {
+      try {
+        var ab = (new Uint8Array(5)).buffer;
+        global.Blob([ab]);
+        expect().fail('Blob shouldn\'t be constructable');
+      } catch (e) {}
+
+      var BlobBuilder = global.BlobBuilder
+        || global.WebKitBlobBuilder
+        || global.MSBlobBuilder
+        || global.MozBlobBuilder;
+      expect(BlobBuilder).to.be(undefined);
+    });
+  } else {
+    it('should encode a proper sized blob when given a string argument', function() {
+      var b = new Blob(['hi']);
+      expect(b.size).to.be(2);
+    });
+
+    it('should encode a blob with proper size when given two strings as arguments', function() {
+      var b = new Blob(['hi', 'hello']);
+      expect(b.size).to.be(7);
+    });
+
+    it('should encode arraybuffers with right content', function(done) {
+      var ary = new Uint8Array(5);
+      for (var i = 0; i < 5; i++) ary[i] = i;
+      var b = new Blob([ary.buffer]);
+      var fr = new FileReader();
+      fr.onload = function() {
+        var newAry = new Uint8Array(this.result);
+        for (var i = 0; i < 5; i++) expect(newAry[i]).to.be(i);
+        done();
+      };
+      fr.readAsArrayBuffer(b);
+    });
+
+    it('should encode typed arrays with right content', function(done) {
+      var ary = new Uint8Array(5);
+      for (var i = 0; i < 5; i++) ary[i] = i;
+      var b = new Blob([ary]);
+      var fr = new FileReader();
+      fr.onload = function() {
+        var newAry = new Uint8Array(this.result);
+        for (var i = 0; i < 5; i++) expect(newAry[i]).to.be(i);
+        done();
+      };
+      fr.readAsArrayBuffer(b);
+    });
+
+    it('should encode sliced typed arrays with right content', function(done) {
+      var ary = new Uint8Array(5);
+      for (var i = 0; i < 5; i++) ary[i] = i;
+      var b = new Blob([ary.subarray(2)]);
+      var fr = new FileReader();
+      fr.onload = function() {
+        var newAry = new Uint8Array(this.result);
+        for (var i = 0; i < 3; i++) expect(newAry[i]).to.be(i + 2);
+        done();
+      };
+      fr.readAsArrayBuffer(b);
+    });
+
+    it('should encode with blobs', function(done) {
+      var ary = new Uint8Array(5);
+      for (var i = 0; i < 5; i++) ary[i] = i;
+      var b = new Blob([new Blob([ary.buffer])]);
+      var fr = new FileReader();
+      fr.onload = function() {
+        var newAry = new Uint8Array(this.result);
+        for (var i = 0; i < 5; i++) expect(newAry[i]).to.be(i);
+        done();
+      };
+      fr.readAsArrayBuffer(b);
+    });
+
+    it('should enode mixed contents to right size', function() {
+      var ary = new Uint8Array(5);
+      for (var i = 0; i < 5; i++) ary[i] = i;
+      var b = new Blob([ary.buffer, 'hello']);
+      expect(b.size).to.be(10);
+    });
+
+    it('should accept mime type', function() {
+      var b = new Blob(['hi', 'hello'], { type: 'text/html' });
+      expect(b.type).to.be('text/html');
+    });
+
+    it('should be an instance of constructor', function() {
+      var b = new Blob(['hi']);
+      expect(b).to.be.a(Blob);
+      expect(b).to.be.a(global.Blob);
+    });
+  }
+});
diff --git a/helloworld/node_modules/cacheable-request/LICENSE b/helloworld/node_modules/cacheable-request/LICENSE
new file mode 100755
index 0000000..f27ee9b
--- /dev/null
+++ b/helloworld/node_modules/cacheable-request/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2017 Luke Childs
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/helloworld/node_modules/cacheable-request/README.md b/helloworld/node_modules/cacheable-request/README.md
new file mode 100755
index 0000000..725e7e0
--- /dev/null
+++ b/helloworld/node_modules/cacheable-request/README.md
@@ -0,0 +1,206 @@
+# cacheable-request
+
+> Wrap native HTTP requests with RFC compliant cache support
+
+[![Build Status](https://travis-ci.org/lukechilds/cacheable-request.svg?branch=master)](https://travis-ci.org/lukechilds/cacheable-request)
+[![Coverage Status](https://coveralls.io/repos/github/lukechilds/cacheable-request/badge.svg?branch=master)](https://coveralls.io/github/lukechilds/cacheable-request?branch=master)
+[![npm](https://img.shields.io/npm/dm/cacheable-request.svg)](https://www.npmjs.com/package/cacheable-request)
+[![npm](https://img.shields.io/npm/v/cacheable-request.svg)](https://www.npmjs.com/package/cacheable-request)
+
+[RFC 7234](http://httpwg.org/specs/rfc7234.html) compliant HTTP caching for native Node.js HTTP/HTTPS requests. Caching works out of the box in memory or is easily pluggable with a wide range of storage adapters.
+
+**Note:** This is a low level wrapper around the core HTTP modules, it's not a high level request library.
+
+## Features
+
+- Only stores cacheable responses as defined by RFC 7234
+- Fresh cache entries are served directly from cache
+- Stale cache entries are revalidated with `If-None-Match`/`If-Modified-Since` headers
+- 304 responses from revalidation requests use cached body
+- Updates `Age` header on cached responses
+- Can completely bypass cache on a per request basis
+- In memory cache by default
+- Official support for Redis, MongoDB, SQLite, PostgreSQL and MySQL storage adapters
+- Easily plug in your own or third-party storage adapters
+- If DB connection fails, cache is automatically bypassed ([disabled by default](#optsautomaticfailover))
+- Adds cache support to any existing HTTP code with minimal changes
+- Uses [http-cache-semantics](https://github.com/pornel/http-cache-semantics) internally for HTTP RFC 7234 compliance
+
+## Install
+
+```shell
+npm install cacheable-request
+```
+
+## Usage
+
+```js
+const http = require('http');
+const CacheableRequest = require('cacheable-request');
+
+// Then instead of
+const req = http.request('http://example.com', cb);
+req.end();
+
+// You can do
+const cacheableRequest = new CacheableRequest(http.request);
+const cacheReq = cacheableRequest('http://example.com', cb);
+cacheReq.on('request', req => req.end());
+// Future requests to 'example.com' will be returned from cache if still valid
+
+// You pass in any other http.request API compatible method to be wrapped with cache support:
+const cacheableRequest = new CacheableRequest(https.request);
+const cacheableRequest = new CacheableRequest(electron.net);
+```
+
+## Storage Adapters
+
+`cacheable-request` uses [Keyv](https://github.com/lukechilds/keyv) to support a wide range of storage adapters.
+
+For example, to use Redis as a cache backend, you just need to install the official Redis Keyv storage adapter:
+
+```
+npm install @keyv/redis
+```
+
+And then you can pass `CacheableRequest` your connection string:
+
+```js
+const cacheableRequest = new CacheableRequest(http.request, 'redis://user:pass@localhost:6379');
+```
+
+[View all official Keyv storage adapters.](https://github.com/lukechilds/keyv#official-storage-adapters)
+
+Keyv also supports anything that follows the Map API so it's easy to write your own storage adapter or use a third-party solution.
+
+e.g The following are all valid storage adapters
+
+```js
+const storageAdapter = new Map();
+// or
+const storageAdapter = require('./my-storage-adapter');
+// or
+const QuickLRU = require('quick-lru');
+const storageAdapter = new QuickLRU({ maxSize: 1000 });
+
+const cacheableRequest = new CacheableRequest(http.request, storageAdapter);
+```
+
+View the [Keyv docs](https://github.com/lukechilds/keyv) for more information on how to use storage adapters.
+
+## API
+
+### new cacheableRequest(request, [storageAdapter])
+
+Returns the provided request function wrapped with cache support.
+
+#### request
+
+Type: `function`
+
+Request function to wrap with cache support. Should be [`http.request`](https://nodejs.org/api/http.html#http_http_request_options_callback) or a similar API compatible request function.
+
+#### storageAdapter
+
+Type: `Keyv storage adapter`<br>
+Default: `new Map()`
+
+A [Keyv](https://github.com/lukechilds/keyv) storage adapter instance, or connection string if using with an official Keyv storage adapter.
+
+### Instance
+
+#### cacheableRequest(opts, [cb])
+
+Returns an event emitter.
+
+##### opts
+
+Type: `object`, `string`
+
+- Any of the default request functions options.
+- Any [`http-cache-semantics`](https://github.com/kornelski/http-cache-semantics#constructor-options) options.
+- Any of the following:
+
+###### opts.cache
+
+Type: `boolean`<br>
+Default: `true`
+
+If the cache should be used. Setting this to false will completely bypass the cache for the current request.
+
+###### opts.strictTtl
+
+Type: `boolean`<br>
+Default: `false`
+
+If set to `true` once a cached resource has expired it is deleted and will have to be re-requested.
+
+If set to `false` (default), after a cached resource's TTL expires it is kept in the cache and will be revalidated on the next request with `If-None-Match`/`If-Modified-Since` headers.
+
+###### opts.maxTtl
+
+Type: `number`<br>
+Default: `undefined`
+
+Limits TTL. The `number` represents milliseconds.
+
+###### opts.automaticFailover
+
+Type: `boolean`<br>
+Default: `false`
+
+When set to `true`, if the DB connection fails we will automatically fallback to a network request. DB errors will still be emitted to notify you of the problem even though the request callback may succeed.
+
+###### opts.forceRefresh
+
+Type: `boolean`<br>
+Default: `false`
+
+Forces refreshing the cache. If the response could be retrieved from the cache, it will perform a new request and override the cache instead.
+
+##### cb
+
+Type: `function`
+
+The callback function which will receive the response as an argument.
+
+The response can be either a [Node.js HTTP response stream](https://nodejs.org/api/http.html#http_class_http_incomingmessage) or a [responselike object](https://github.com/lukechilds/responselike). The response will also have a `fromCache` property set with a boolean value.
+
+##### .on('request', request)
+
+`request` event to get the request object of the request.
+
+**Note:** This event will only fire if an HTTP request is actually made, not when a response is retrieved from cache. However, you should always handle the `request` event to end the request and handle any potential request errors.
+
+##### .on('response', response)
+
+`response` event to get the response object from the HTTP request or cache.
+
+##### .on('error', error)
+
+`error` event emitted in case of an error with the cache.
+
+Errors emitted here will be an instance of `CacheableRequest.RequestError` or `CacheableRequest.CacheError`. You will only ever receive a `RequestError` if the request function throws (normally caused by invalid user input). Normal request errors should be handled inside the `request` event.
+
+To properly handle all error scenarios you should use the following pattern:
+
+```js
+cacheableRequest('example.com', cb)
+  .on('error', err => {
+    if (err instanceof CacheableRequest.CacheError) {
+      handleCacheError(err); // Cache error
+    } else if (err instanceof CacheableRequest.RequestError) {
+      handleRequestError(err); // Request function thrown
+    }
+  })
+  .on('request', req => {
+    req.on('error', handleRequestError); // Request error emitted
+    req.end();
+  });
+```
+
+**Note:** Database connection errors are emitted here, however `cacheable-request` will attempt to re-request the resource and bypass the cache on a connection error. Therefore a database connection error doesn't necessarily mean the request won't be fulfilled.
+
+## License
+
+MIT © Luke Childs
diff --git a/helloworld/node_modules/cacheable-request/src/index.js b/helloworld/node_modules/cacheable-request/src/index.js
new file mode 100755
index 0000000..cf171ad
--- /dev/null
+++ b/helloworld/node_modules/cacheable-request/src/index.js
@@ -0,0 +1,244 @@
+'use strict';
+
+const EventEmitter = require('events');
+const urlLib = require('url');
+const normalizeUrl = require('normalize-url');
+const getStream = require('get-stream');
+const CachePolicy = require('http-cache-semantics');
+const Response = require('responselike');
+const lowercaseKeys = require('lowercase-keys');
+const cloneResponse = require('clone-response');
+const Keyv = require('keyv');
+
+class CacheableRequest {
+	constructor(request, cacheAdapter) {
+		if (typeof request !== 'function') {
+			throw new TypeError('Parameter `request` must be a function');
+		}
+
+		this.cache = new Keyv({
+			uri: typeof cacheAdapter === 'string' && cacheAdapter,
+			store: typeof cacheAdapter !== 'string' && cacheAdapter,
+			namespace: 'cacheable-request'
+		});
+
+		return this.createCacheableRequest(request);
+	}
+
+	createCacheableRequest(request) {
+		return (opts, cb) => {
+			let url;
+			if (typeof opts === 'string') {
+				url = normalizeUrlObject(urlLib.parse(opts));
+				opts = {};
+			} else if (opts instanceof urlLib.URL) {
+				url = normalizeUrlObject(urlLib.parse(opts.toString()));
+				opts = {};
+			} else {
+				const [pathname, ...searchParts] = (opts.path || '').split('?');
+				const search = searchParts.length > 0 ?
+					`?${searchParts.join('?')}` :
+					'';
+				url = normalizeUrlObject({ ...opts, pathname, search });
+			}
+			opts = {
+				headers: {},
+				method: 'GET',
+				cache: true,
+				strictTtl: false,
+				automaticFailover: false,
+				...opts,
+				...urlObjectToRequestOptions(url)
+			};
+			opts.headers = lowercaseKeys(opts.headers);
+
+			const ee = new EventEmitter();
+			const normalizedUrlString = normalizeUrl(
+				urlLib.format(url),
+				{
+					stripWWW: false,
+					removeTrailingSlash: false
+				}
+			);
+			const key = `${opts.method}:${normalizedUrlString}`;
+			let revalidate = false;
+			let madeRequest = false;
+
+			const makeRequest = opts => {
+				madeRequest = true;
+				let requestErrored = false;
+				let requestErrorCallback;
+
+				const requestErrorPromise = new Promise(resolve => {
+					requestErrorCallback = () => {
+						requestErrored = true;
+						resolve();
+					};
+				});
+
+				const handler = response => {
+					if (revalidate && !opts.forceRefresh) {
+						response.status = response.statusCode;
+						const revalidatedPolicy = CachePolicy.fromObject(revalidate.cachePolicy).revalidatedPolicy(opts, response);
+						if (!revalidatedPolicy.modified) {
+							const headers = revalidatedPolicy.policy.responseHeaders();
+							response = new Response(revalidate.statusCode, headers, revalidate.body, revalidate.url);
+							response.cachePolicy = revalidatedPolicy.policy;
+							response.fromCache = true;
+						}
+					}
+
+					if (!response.fromCache) {
+						response.cachePolicy = new CachePolicy(opts, response, opts);
+						response.fromCache = false;
+					}
+
+					let clonedResponse;
+					if (opts.cache && response.cachePolicy.storable()) {
+						clonedResponse = cloneResponse(response);
+
+						(async () => {
+							try {
+								const bodyPromise = getStream.buffer(response);
+
+								await Promise.race([
+									requestErrorPromise,
+									new Promise(resolve => response.once('end', resolve))
+								]);
+
+								if (requestErrored) {
+									return;
+								}
+
+								const body = await bodyPromise;
+
+								const value = {
+									cachePolicy: response.cachePolicy.toObject(),
+									url: response.url,
+									statusCode: response.fromCache ? revalidate.statusCode : response.statusCode,
+									body
+								};
+
+								let ttl = opts.strictTtl ? response.cachePolicy.timeToLive() : undefined;
+								if (opts.maxTtl) {
+									ttl = ttl ? Math.min(ttl, opts.maxTtl) : opts.maxTtl;
+								}
+
+								await this.cache.set(key, value, ttl);
+							} catch (err) {
+								ee.emit('error', new CacheableRequest.CacheError(err));
+							}
+						})();
+					} else if (opts.cache && revalidate) {
+						(async () => {
+							try {
+								await this.cache.delete(key);
+							} catch (err) {
+								ee.emit('error', new CacheableRequest.CacheError(err));
+							}
+						})();
+					}
+
+					ee.emit('response', clonedResponse || response);
+					if (typeof cb === 'function') {
+						cb(clonedResponse || response);
+					}
+				};
+
+				try {
+					const req = request(opts, handler);
+					req.once('error', requestErrorCallback);
+					req.once('abort', requestErrorCallback);
+					ee.emit('request', req);
+				} catch (err) {
+					ee.emit('error', new CacheableRequest.RequestError(err));
+				}
+			};
+
+			(async () => {
+				const get = async opts => {
+					await Promise.resolve();
+
+					const cacheEntry = opts.cache ? await this.cache.get(key) : undefined;
+					if (typeof cacheEntry === 'undefined') {
+						return makeRequest(opts);
+					}
+
+					const policy = CachePolicy.fromObject(cacheEntry.cachePolicy);
+					if (policy.satisfiesWithoutRevalidation(opts) && !opts.forceRefresh) {
+						const headers = policy.responseHeaders();
+						const response = new Response(cacheEntry.statusCode, headers, cacheEntry.body, cacheEntry.url);
+						response.cachePolicy = policy;
+						response.fromCache = true;
+
+						ee.emit('response', response);
+						if (typeof cb === 'function') {
+							cb(response);
+						}
+					} else {
+						revalidate = cacheEntry;
+						opts.headers = policy.revalidationHeaders(opts);
+						makeRequest(opts);
+					}
+				};
+
+				this.cache.on('error', err => ee.emit('error', new CacheableRequest.CacheError(err)));
+
+				try {
+					await get(opts);
+				} catch (err) {
+					if (opts.automaticFailover && !madeRequest) {
+						makeRequest(opts);
+					}
+					ee.emit('error', new CacheableRequest.CacheError(err));
+				}
+			})();
+
+			return ee;
+		};
+	}
+}
+
+function urlObjectToRequestOptions(url) {
+	const options = { ...url };
+	options.path = `${url.pathname || '/'}${url.search || ''}`;
+	delete options.pathname;
+	delete options.search;
+	return options;
+}
+
+function normalizeUrlObject(url) {
+	// If url was parsed by url.parse or new URL:
+	// - hostname will be set
+	// - host will be hostname[:port]
+	// - port will be set if it was explicit in the parsed string
+	// Otherwise, url was from request options:
+	// - hostname or host may be set
+	// - host shall not have port encoded
+	return {
+		protocol: url.protocol,
+		auth: url.auth,
+		hostname: url.hostname || url.host || 'localhost',
+		port: url.port,
+		pathname: url.pathname,
+		search: url.search
+	};
+}
+
+CacheableRequest.RequestError = class extends Error {
+	constructor(err) {
+		super(err.message);
+		this.name = 'RequestError';
+		Object.assign(this, err);
+	}
+};
+
+CacheableRequest.CacheError = class extends Error {
+	constructor(err) {
+		super(err.message);
+		this.name = 'CacheError';
+		Object.assign(this, err);
+	}
+};
+
+module.exports = CacheableRequest;
diff --git a/helloworld/node_modules/callsite/History.md b/helloworld/node_modules/callsite/History.md
new file mode 100755
index 0000000..4994198
--- /dev/null
+++ b/helloworld/node_modules/callsite/History.md
@@ -0,0 +1,10 @@
+
+1.0.0 / 2013-01-24 
+==================
+
+  * remove lame magical getters
+
+0.0.1 / 2010-01-03
+==================
+
+  * Initial release
diff --git a/helloworld/node_modules/callsite/Makefile b/helloworld/node_modules/callsite/Makefile
new file mode 100755
index 0000000..634e372
--- /dev/null
+++ b/helloworld/node_modules/callsite/Makefile
@@ -0,0 +1,6 @@
+
+test:
+	@./node_modules/.bin/mocha \
+		--require should
+
+.PHONY: test
\ No newline at end of file
diff --git a/helloworld/node_modules/callsite/Readme.md b/helloworld/node_modules/callsite/Readme.md
new file mode 100755
index 0000000..0dbd16a
--- /dev/null
+++ b/helloworld/node_modules/callsite/Readme.md
@@ -0,0 +1,44 @@
+# callstack
+
+  Access to v8's "raw" `CallSite`s.
+
+## Installation
+
+    $ npm install callsite
+
+## Example
+
+```js
+var stack = require('callsite');
+
+foo();
+
+function foo() {
+  bar();
+}
+
+function bar() {
+  baz();
+}
+
+function baz() {
+  console.log();
+  stack().forEach(function(site){
+    console.log('  \033[36m%s\033[90m in %s:%d\033[0m'
+      , site.getFunctionName() || 'anonymous'
+      , site.getFileName()
+      , site.getLineNumber());
+  });
+  console.log();
+}
+```
+
+## Why?
+
+  Because you can do weird, stupid, clever, wacky things such as:
+
+  - [better-assert](https://github.com/visionmedia/better-assert)
+
+## License
+
+  MIT
diff --git a/helloworld/node_modules/callsite/index.js b/helloworld/node_modules/callsite/index.js
new file mode 100755
index 0000000..d3ee6f8
--- /dev/null
+++ b/helloworld/node_modules/callsite/index.js
@@ -0,0 +1,10 @@
+
+module.exports = function(){
+  var orig = Error.prepareStackTrace;
+  Error.prepareStackTrace = function(_, stack){ return stack; };
+  var err = new Error;
+  Error.captureStackTrace(err, arguments.callee);
+  var stack = err.stack;
+  Error.prepareStackTrace = orig;
+  return stack;
+};
diff --git a/helloworld/node_modules/callsite/package.json b/helloworld/node_modules/callsite/package.json
new file mode 100755
index 0000000..920841d
--- /dev/null
+++ b/helloworld/node_modules/callsite/package.json
@@ -0,0 +1,48 @@
+{
+  "_from": "callsite@1.0.0",
+  "_id": "callsite@1.0.0",
+  "_inBundle": false,
+  "_integrity": "sha1-KAOY5dZkvXQDi28JBRU+borxvCA=",
+  "_location": "/callsite",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "callsite@1.0.0",
+    "name": "callsite",
+    "escapedName": "callsite",
+    "rawSpec": "1.0.0",
+    "saveSpec": null,
+    "fetchSpec": "1.0.0"
+  },
+  "_requiredBy": [
+    "/better-assert"
+  ],
+  "_resolved": "https://registry.npmjs.org/callsite/-/callsite-1.0.0.tgz",
+  "_shasum": "280398e5d664bd74038b6f0905153e6e8af1bc20",
+  "_spec": "callsite@1.0.0",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/better-assert",
+  "author": {
+    "name": "TJ Holowaychuk",
+    "email": "tj@vision-media.ca"
+  },
+  "bundleDependencies": false,
+  "dependencies": {},
+  "deprecated": false,
+  "description": "access to v8's CallSites",
+  "devDependencies": {
+    "mocha": "*",
+    "should": "*"
+  },
+  "engines": {
+    "node": "*"
+  },
+  "keywords": [
+    "stack",
+    "trace",
+    "line"
+  ],
+  "main": "index",
+  "name": "callsite",
+  "version": "1.0.0"
+}
diff --git a/helloworld/node_modules/camelcase/index.js b/helloworld/node_modules/camelcase/index.js
new file mode 100755
index 0000000..5670f73
--- /dev/null
+++ b/helloworld/node_modules/camelcase/index.js
@@ -0,0 +1,56 @@
+'use strict';
+
+function preserveCamelCase(str) {
+	var isLastCharLower = false;
+
+	for (var i = 0; i < str.length; i++) {
+		var c = str.charAt(i);
+
+		if (isLastCharLower && (/[a-zA-Z]/).test(c) && c.toUpperCase() === c) {
+			str = str.substr(0, i) + '-' + str.substr(i);
+			isLastCharLower = false;
+			i++;
+		} else {
+			isLastCharLower = (c.toLowerCase() === c);
+		}
+	}
+
+	return str;
+}
+
+module.exports = function () {
+	var str = [].map.call(arguments, function (str) {
+		return str.trim();
+	}).filter(function (str) {
+		return str.length;
+	}).join('-');
+
+	if (!str.length) {
+		return '';
+	}
+
+	if (str.length === 1) {
+		return str.toLowerCase();
+	}
+
+	if (!(/[_.\- ]+/).test(str)) {
+		if (str === str.toUpperCase()) {
+			return str.toLowerCase();
+		}
+
+		if (str[0] !== str[0].toLowerCase()) {
+			return str[0].toLowerCase() + str.slice(1);
+		}
+
+		return str;
+	}
+
+	str = preserveCamelCase(str);
+
+	return str
+	.replace(/^[_.\- ]+/, '')
+	.toLowerCase()
+	.replace(/[_.\- ]+(\w|$)/g, function (m, p1) {
+		return p1.toUpperCase();
+	});
+};
diff --git a/helloworld/node_modules/camelcase/license b/helloworld/node_modules/camelcase/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/camelcase/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/camelcase/readme.md b/helloworld/node_modules/camelcase/readme.md
new file mode 100755
index 0000000..080b2a1
--- /dev/null
+++ b/helloworld/node_modules/camelcase/readme.md
@@ -0,0 +1,57 @@
+# camelcase [![Build Status](https://travis-ci.org/sindresorhus/camelcase.svg?branch=master)](https://travis-ci.org/sindresorhus/camelcase)
+
+> Convert a dash/dot/underscore/space separated string to camelCase: `foo-bar` → `fooBar`
+
+
+## Install
+
+```
+$ npm install --save camelcase
+```
+
+
+## Usage
+
+```js
+const camelCase = require('camelcase');
+
+camelCase('foo-bar');
+//=> 'fooBar'
+
+camelCase('foo_bar');
+//=> 'fooBar'
+
+camelCase('Foo-Bar');
+//=> 'fooBar'
+
+camelCase('--foo.bar');
+//=> 'fooBar'
+
+camelCase('__foo__bar__');
+//=> 'fooBar'
+
+camelCase('foo bar');
+//=> 'fooBar'
+
+console.log(process.argv[3]);
+//=> '--foo-bar'
+camelCase(process.argv[3]);
+//=> 'fooBar'
+
+camelCase('foo', 'bar');
+//=> 'fooBar'
+
+camelCase('__foo__', '--bar');
+//=> 'fooBar'
+```
+
+
+## Related
+
+- [decamelize](https://github.com/sindresorhus/decamelize) - The inverse of this module
+- [uppercamelcase](https://github.com/SamVerschueren/uppercamelcase) - Like this module, but to PascalCase instead of camelCase
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/cliui/CHANGELOG.md b/helloworld/node_modules/cliui/CHANGELOG.md
new file mode 100755
index 0000000..ef6a35e
--- /dev/null
+++ b/helloworld/node_modules/cliui/CHANGELOG.md
@@ -0,0 +1,15 @@
+# Change Log
+
+All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
+
+<a name="3.2.0"></a>
+# [3.2.0](https://github.com/yargs/cliui/compare/v3.1.2...v3.2.0) (2016-04-11)
+
+
+### Bug Fixes
+
+* reduces tarball size ([acc6c33](https://github.com/yargs/cliui/commit/acc6c33))
+
+### Features
+
+* adds standard-version for release management ([ff84e32](https://github.com/yargs/cliui/commit/ff84e32))
diff --git a/helloworld/node_modules/cliui/LICENSE.txt b/helloworld/node_modules/cliui/LICENSE.txt
new file mode 100755
index 0000000..c7e2747
--- /dev/null
+++ b/helloworld/node_modules/cliui/LICENSE.txt
@@ -0,0 +1,14 @@
+Copyright (c) 2015, Contributors
+
+Permission to use, copy, modify, and/or distribute this software
+for any purpose with or without fee is hereby granted, provided
+that the above copyright notice and this permission notice
+appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE
+LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
+OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/helloworld/node_modules/cliui/README.md b/helloworld/node_modules/cliui/README.md
new file mode 100755
index 0000000..028392c
--- /dev/null
+++ b/helloworld/node_modules/cliui/README.md
@@ -0,0 +1,110 @@
+# cliui
+
+[![Build Status](https://travis-ci.org/yargs/cliui.svg)](https://travis-ci.org/yargs/cliui)
+[![Coverage Status](https://coveralls.io/repos/yargs/cliui/badge.svg?branch=)](https://coveralls.io/r/yargs/cliui?branch=)
+[![NPM version](https://img.shields.io/npm/v/cliui.svg)](https://www.npmjs.com/package/cliui)
+[![Standard Version](https://img.shields.io/badge/release-standard%20version-brightgreen.svg)](https://github.com/conventional-changelog/standard-version)
+
+easily create complex multi-column command-line-interfaces.
+
+## Example
+
+```js
+var ui = require('cliui')({
+  width: 80
+})
+
+ui.div('Usage: $0 [command] [options]')
+
+ui.div({
+  text: 'Options:',
+  padding: [2, 0, 2, 0]
+})
+
+ui.div(
+  {
+    text: "-f, --file",
+    width: 20,
+    padding: [0, 4, 0, 4]
+  },
+  {
+    text: "the file to load." +
+      chalk.green("(if this description is long it wraps).")
+    ,
+    width: 20
+  },
+  {
+    text: chalk.red("[required]"),
+    align: 'right'
+  }
+)
+
+console.log(ui.toString())
+```
+
+<img width="500" src="screenshot.png">
+
+## Layout DSL
+
+cliui exposes a simple layout DSL:
+
+If you create a single `ui.row`, passing a string rather than an
+object:
+
+* `\n`: characters will be interpreted as new rows.
+* `\t`: characters will be interpreted as new columns.
+* `\s`: characters will be interpreted as padding.
+
+**as an example...**
+
+```js
+var ui = require('./')({
+  width: 60
+})
+
+ui.div(
+  'Usage: node ./bin/foo.js\n' +
+  '  <regex>\t  provide a regex\n' +
+  '  <glob>\t  provide a glob\t [required]'
+)
+
+console.log(ui.toString())
+```
+
+**will output:**
+
+```shell
+Usage: node ./bin/foo.js
+  <regex>  provide a regex
+  <glob>   provide a glob          [required]
+```
+
+## Methods
+
+```js
+cliui = require('cliui')
+```
+
+### cliui({width: integer})
+
+Specify the maximum width of the UI being generated.
+
+### cliui({wrap: boolean})
+
+Enable or disable the wrapping of text in a column.
+
+### cliui.div(column, column, column)
+
+Create a row with any number of columns, a column
+can either be a string, or an object with the following
+options:
+
+* **width:** the width of a column.
+* **align:** alignment, `right` or `center`.
+* **padding:** `[top, right, bottom, left]`.
+* **border:** should a border be placed around the div?
+
+### cliui.span(column, column, column)
+
+Similar to `div`, except the next row will be appended without
+a new line being created.
diff --git a/helloworld/node_modules/cliui/index.js b/helloworld/node_modules/cliui/index.js
new file mode 100755
index 0000000..e501e78
--- /dev/null
+++ b/helloworld/node_modules/cliui/index.js
@@ -0,0 +1,316 @@
+var stringWidth = require('string-width')
+var stripAnsi = require('strip-ansi')
+var wrap = require('wrap-ansi')
+var align = {
+  right: alignRight,
+  center: alignCenter
+}
+var top = 0
+var right = 1
+var bottom = 2
+var left = 3
+
+function UI (opts) {
+  this.width = opts.width
+  this.wrap = opts.wrap
+  this.rows = []
+}
+
+UI.prototype.span = function () {
+  var cols = this.div.apply(this, arguments)
+  cols.span = true
+}
+
+UI.prototype.div = function () {
+  if (arguments.length === 0) this.div('')
+  if (this.wrap && this._shouldApplyLayoutDSL.apply(this, arguments)) {
+    return this._applyLayoutDSL(arguments[0])
+  }
+
+  var cols = []
+
+  for (var i = 0, arg; (arg = arguments[i]) !== undefined; i++) {
+    if (typeof arg === 'string') cols.push(this._colFromString(arg))
+    else cols.push(arg)
+  }
+
+  this.rows.push(cols)
+  return cols
+}
+
+UI.prototype._shouldApplyLayoutDSL = function () {
+  return arguments.length === 1 && typeof arguments[0] === 'string' &&
+    /[\t\n]/.test(arguments[0])
+}
+
+UI.prototype._applyLayoutDSL = function (str) {
+  var _this = this
+  var rows = str.split('\n')
+  var leftColumnWidth = 0
+
+  // simple heuristic for layout, make sure the
+  // second column lines up along the left-hand.
+  // don't allow the first column to take up more
+  // than 50% of the screen.
+  rows.forEach(function (row) {
+    var columns = row.split('\t')
+    if (columns.length > 1 && stringWidth(columns[0]) > leftColumnWidth) {
+      leftColumnWidth = Math.min(
+        Math.floor(_this.width * 0.5),
+        stringWidth(columns[0])
+      )
+    }
+  })
+
+  // generate a table:
+  //  replacing ' ' with padding calculations.
+  //  using the algorithmically generated width.
+  rows.forEach(function (row) {
+    var columns = row.split('\t')
+    _this.div.apply(_this, columns.map(function (r, i) {
+      return {
+        text: r.trim(),
+        padding: _this._measurePadding(r),
+        width: (i === 0 && columns.length > 1) ? leftColumnWidth : undefined
+      }
+    }))
+  })
+
+  return this.rows[this.rows.length - 1]
+}
+
+UI.prototype._colFromString = function (str) {
+  return {
+    text: str,
+    padding: this._measurePadding(str)
+  }
+}
+
+UI.prototype._measurePadding = function (str) {
+  // measure padding without ansi escape codes
+  var noAnsi = stripAnsi(str)
+  return [0, noAnsi.match(/\s*$/)[0].length, 0, noAnsi.match(/^\s*/)[0].length]
+}
+
+UI.prototype.toString = function () {
+  var _this = this
+  var lines = []
+
+  _this.rows.forEach(function (row, i) {
+    _this.rowToString(row, lines)
+  })
+
+  // don't display any lines with the
+  // hidden flag set.
+  lines = lines.filter(function (line) {
+    return !line.hidden
+  })
+
+  return lines.map(function (line) {
+    return line.text
+  }).join('\n')
+}
+
+UI.prototype.rowToString = function (row, lines) {
+  var _this = this
+  var padding
+  var rrows = this._rasterize(row)
+  var str = ''
+  var ts
+  var width
+  var wrapWidth
+
+  rrows.forEach(function (rrow, r) {
+    str = ''
+    rrow.forEach(function (col, c) {
+      ts = '' // temporary string used during alignment/padding.
+      width = row[c].width // the width with padding.
+      wrapWidth = _this._negatePadding(row[c]) // the width without padding.
+
+      ts += col
+
+      for (var i = 0; i < wrapWidth - stringWidth(col); i++) {
+        ts += ' '
+      }
+
+      // align the string within its column.
+      if (row[c].align && row[c].align !== 'left' && _this.wrap) {
+        ts = align[row[c].align](ts, wrapWidth)
+        if (stringWidth(ts) < wrapWidth) ts += new Array(width - stringWidth(ts)).join(' ')
+      }
+
+      // apply border and padding to string.
+      padding = row[c].padding || [0, 0, 0, 0]
+      if (padding[left]) str += new Array(padding[left] + 1).join(' ')
+      str += addBorder(row[c], ts, '| ')
+      str += ts
+      str += addBorder(row[c], ts, ' |')
+      if (padding[right]) str += new Array(padding[right] + 1).join(' ')
+
+      // if prior row is span, try to render the
+      // current row on the prior line.
+      if (r === 0 && lines.length > 0) {
+        str = _this._renderInline(str, lines[lines.length - 1])
+      }
+    })
+
+    // remove trailing whitespace.
+    lines.push({
+      text: str.replace(/ +$/, ''),
+      span: row.span
+    })
+  })
+
+  return lines
+}
+
+function addBorder (col, ts, style) {
+  if (col.border) {
+    if (/[.']-+[.']/.test(ts)) return ''
+    else if (ts.trim().length) return style
+    else return '  '
+  }
+  return ''
+}
+
+// if the full 'source' can render in
+// the target line, do so.
+UI.prototype._renderInline = function (source, previousLine) {
+  var leadingWhitespace = source.match(/^ */)[0].length
+  var target = previousLine.text
+  var targetTextWidth = stringWidth(target.trimRight())
+
+  if (!previousLine.span) return source
+
+  // if we're not applying wrapping logic,
+  // just always append to the span.
+  if (!this.wrap) {
+    previousLine.hidden = true
+    return target + source
+  }
+
+  if (leadingWhitespace < targetTextWidth) return source
+
+  previousLine.hidden = true
+
+  return target.trimRight() + new Array(leadingWhitespace - targetTextWidth + 1).join(' ') + source.trimLeft()
+}
+
+UI.prototype._rasterize = function (row) {
+  var _this = this
+  var i
+  var rrow
+  var rrows = []
+  var widths = this._columnWidths(row)
+  var wrapped
+
+  // word wrap all columns, and create
+  // a data-structure that is easy to rasterize.
+  row.forEach(function (col, c) {
+    // leave room for left and right padding.
+    col.width = widths[c]
+    if (_this.wrap) wrapped = wrap(col.text, _this._negatePadding(col), {hard: true}).split('\n')
+    else wrapped = col.text.split('\n')
+
+    if (col.border) {
+      wrapped.unshift('.' + new Array(_this._negatePadding(col) + 3).join('-') + '.')
+      wrapped.push("'" + new Array(_this._negatePadding(col) + 3).join('-') + "'")
+    }
+
+    // add top and bottom padding.
+    if (col.padding) {
+      for (i = 0; i < (col.padding[top] || 0); i++) wrapped.unshift('')
+      for (i = 0; i < (col.padding[bottom] || 0); i++) wrapped.push('')
+    }
+
+    wrapped.forEach(function (str, r) {
+      if (!rrows[r]) rrows.push([])
+
+      rrow = rrows[r]
+
+      for (var i = 0; i < c; i++) {
+        if (rrow[i] === undefined) rrow.push('')
+      }
+      rrow.push(str)
+    })
+  })
+
+  return rrows
+}
+
+UI.prototype._negatePadding = function (col) {
+  var wrapWidth = col.width
+  if (col.padding) wrapWidth -= (col.padding[left] || 0) + (col.padding[right] || 0)
+  if (col.border) wrapWidth -= 4
+  return wrapWidth
+}
+
+UI.prototype._columnWidths = function (row) {
+  var _this = this
+  var widths = []
+  var unset = row.length
+  var unsetWidth
+  var remainingWidth = this.width
+
+  // column widths can be set in config.
+  row.forEach(function (col, i) {
+    if (col.width) {
+      unset--
+      widths[i] = col.width
+      remainingWidth -= col.width
+    } else {
+      widths[i] = undefined
+    }
+  })
+
+  // any unset widths should be calculated.
+  if (unset) unsetWidth = Math.floor(remainingWidth / unset)
+  widths.forEach(function (w, i) {
+    if (!_this.wrap) widths[i] = row[i].width || stringWidth(row[i].text)
+    else if (w === undefined) widths[i] = Math.max(unsetWidth, _minWidth(row[i]))
+  })
+
+  return widths
+}
+
+// calculates the minimum width of
+// a column, based on padding preferences.
+function _minWidth (col) {
+  var padding = col.padding || []
+  var minWidth = 1 + (padding[left] || 0) + (padding[right] || 0)
+  if (col.border) minWidth += 4
+  return minWidth
+}
+
+function alignRight (str, width) {
+  str = str.trim()
+  var padding = ''
+  var strWidth = stringWidth(str)
+
+  if (strWidth < width) {
+    padding = new Array(width - strWidth + 1).join(' ')
+  }
+
+  return padding + str
+}
+
+function alignCenter (str, width) {
+  str = str.trim()
+  var padding = ''
+  var strWidth = stringWidth(str.trim())
+
+  if (strWidth < width) {
+    padding = new Array(parseInt((width - strWidth) / 2, 10) + 1).join(' ')
+  }
+
+  return padding + str
+}
+
+module.exports = function (opts) {
+  opts = opts || {}
+
+  return new UI({
+    width: (opts || {}).width || 80,
+    wrap: typeof opts.wrap === 'boolean' ? opts.wrap : true
+  })
+}
diff --git a/helloworld/node_modules/clone-response/LICENSE b/helloworld/node_modules/clone-response/LICENSE
new file mode 100755
index 0000000..f27ee9b
--- /dev/null
+++ b/helloworld/node_modules/clone-response/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2017 Luke Childs
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/helloworld/node_modules/clone-response/README.md b/helloworld/node_modules/clone-response/README.md
new file mode 100755
index 0000000..d037cfe
--- /dev/null
+++ b/helloworld/node_modules/clone-response/README.md
@@ -0,0 +1,62 @@
+# clone-response
+
+> Clone a Node.js HTTP response stream
+
+[![Build Status](https://travis-ci.org/lukechilds/clone-response.svg?branch=master)](https://travis-ci.org/lukechilds/clone-response)
+[![Coverage Status](https://coveralls.io/repos/github/lukechilds/clone-response/badge.svg?branch=master)](https://coveralls.io/github/lukechilds/clone-response?branch=master)
+[![npm](https://img.shields.io/npm/dm/clone-response.svg)](https://www.npmjs.com/package/clone-response)
+[![npm](https://img.shields.io/npm/v/clone-response.svg)](https://www.npmjs.com/package/clone-response)
+
+Returns a new stream and copies over all properties and methods from the original response giving you a complete duplicate.
+
+This is useful in situations where you need to consume the response stream but also want to pass an unconsumed stream somewhere else to be consumed later.
+
+## Install
+
+```shell
+npm install --save clone-response
+```
+
+## Usage
+
+```js
+const http = require('http');
+const cloneResponse = require('clone-response');
+
+http.get('http://example.com', response => {
+  const clonedResponse = cloneResponse(response);
+  response.pipe(process.stdout);
+
+  setImmediate(() => {
+    // The response stream has already been consumed by the time this executes,
+    // however the cloned response stream is still available.
+    doSomethingWithResponse(clonedResponse);
+  });
+});
+```
+
+Please bear in mind that the process of cloning a stream consumes it. However, you can consume a stream multiple times in the same tick, therefore allowing you to create multiple clones. e.g:
+
+```js
+const clone1 = cloneResponse(response);
+const clone2 = cloneResponse(response);
+// response can still be consumed in this tick but cannot be consumed if passed
+// into any async callbacks. clone1 and clone2 can be passed around and be
+// consumed in the future.
+```
+
+## API
+
+### cloneResponse(response)
+
+Returns a clone of the passed in response.
+
+#### response
+
+Type: `stream`
+
+A [Node.js HTTP response stream](https://nodejs.org/api/http.html#http_class_http_incomingmessage) to clone.
+
+## License
+
+MIT © Luke Childs
diff --git a/helloworld/node_modules/clone-response/package.json b/helloworld/node_modules/clone-response/package.json
new file mode 100755
index 0000000..4c21f46
--- /dev/null
+++ b/helloworld/node_modules/clone-response/package.json
@@ -0,0 +1,73 @@
+{
+  "_from": "clone-response@^1.0.2",
+  "_id": "clone-response@1.0.2",
+  "_inBundle": false,
+  "_integrity": "sha1-0dyXOSAxTfZ/vrlCI7TuNQI56Ws=",
+  "_location": "/clone-response",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "clone-response@^1.0.2",
+    "name": "clone-response",
+    "escapedName": "clone-response",
+    "rawSpec": "^1.0.2",
+    "saveSpec": null,
+    "fetchSpec": "^1.0.2"
+  },
+  "_requiredBy": [
+    "/cacheable-request"
+  ],
+  "_resolved": "https://registry.npmjs.org/clone-response/-/clone-response-1.0.2.tgz",
+  "_shasum": "d1dc973920314df67fbeb94223b4ee350239e96b",
+  "_spec": "clone-response@^1.0.2",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/cacheable-request",
+  "author": {
+    "name": "Luke Childs",
+    "email": "lukechilds123@gmail.com",
+    "url": "http://lukechilds.co.uk"
+  },
+  "bugs": {
+    "url": "https://github.com/lukechilds/clone-response/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "mimic-response": "^1.0.0"
+  },
+  "deprecated": false,
+  "description": "Clone a Node.js HTTP response stream",
+  "devDependencies": {
+    "ava": "^0.22.0",
+    "coveralls": "^2.13.1",
+    "create-test-server": "^2.0.1",
+    "eslint-config-xo-lukechilds": "^1.0.0",
+    "get-stream": "^3.0.0",
+    "nyc": "^11.0.2",
+    "pify": "^3.0.0",
+    "xo": "^0.19.0"
+  },
+  "homepage": "https://github.com/lukechilds/clone-response",
+  "keywords": [
+    "clone",
+    "duplicate",
+    "copy",
+    "response",
+    "HTTP",
+    "stream"
+  ],
+  "license": "MIT",
+  "main": "src/index.js",
+  "name": "clone-response",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/lukechilds/clone-response.git"
+  },
+  "scripts": {
+    "coverage": "nyc report --reporter=text-lcov | coveralls",
+    "test": "xo && nyc ava"
+  },
+  "version": "1.0.2",
+  "xo": {
+    "extends": "xo-lukechilds"
+  }
+}
diff --git a/helloworld/node_modules/clone-response/src/index.js b/helloworld/node_modules/clone-response/src/index.js
new file mode 100755
index 0000000..0285dff
--- /dev/null
+++ b/helloworld/node_modules/clone-response/src/index.js
@@ -0,0 +1,17 @@
+'use strict';
+
+const PassThrough = require('stream').PassThrough;
+const mimicResponse = require('mimic-response');
+
+const cloneResponse = response => {
+	if (!(response && response.pipe)) {
+		throw new TypeError('Parameter `response` must be a response stream.');
+	}
+
+	const clone = new PassThrough();
+	mimicResponse(response, clone);
+
+	return response.pipe(clone);
+};
+
+module.exports = cloneResponse;
diff --git a/helloworld/node_modules/code-point-at/index.js b/helloworld/node_modules/code-point-at/index.js
new file mode 100755
index 0000000..0432fe6
--- /dev/null
+++ b/helloworld/node_modules/code-point-at/index.js
@@ -0,0 +1,32 @@
+/* eslint-disable babel/new-cap, xo/throw-new-error */
+'use strict';
+module.exports = function (str, pos) {
+	if (str === null || str === undefined) {
+		throw TypeError();
+	}
+
+	str = String(str);
+
+	var size = str.length;
+	var i = pos ? Number(pos) : 0;
+
+	if (Number.isNaN(i)) {
+		i = 0;
+	}
+
+	if (i < 0 || i >= size) {
+		return undefined;
+	}
+
+	var first = str.charCodeAt(i);
+
+	if (first >= 0xD800 && first <= 0xDBFF && size > i + 1) {
+		var second = str.charCodeAt(i + 1);
+
+		if (second >= 0xDC00 && second <= 0xDFFF) {
+			return ((first - 0xD800) * 0x400) + second - 0xDC00 + 0x10000;
+		}
+	}
+
+	return first;
+};
diff --git a/helloworld/node_modules/code-point-at/license b/helloworld/node_modules/code-point-at/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/code-point-at/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/code-point-at/readme.md b/helloworld/node_modules/code-point-at/readme.md
new file mode 100755
index 0000000..4c97730
--- /dev/null
+++ b/helloworld/node_modules/code-point-at/readme.md
@@ -0,0 +1,32 @@
+# code-point-at [![Build Status](https://travis-ci.org/sindresorhus/code-point-at.svg?branch=master)](https://travis-ci.org/sindresorhus/code-point-at)
+
+> ES2015 [`String#codePointAt()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/codePointAt) [ponyfill](https://ponyfill.com)
+
+
+## Install
+
+```
+$ npm install --save code-point-at
+```
+
+
+## Usage
+
+```js
+var codePointAt = require('code-point-at');
+
+codePointAt('🐴');
+//=> 128052
+
+codePointAt('abc', 2);
+//=> 99
+```
+
+## API
+
+### codePointAt(input, [position])
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/helloworld/node_modules/component-bind/History.md b/helloworld/node_modules/component-bind/History.md
new file mode 100755
index 0000000..2795fdb
--- /dev/null
+++ b/helloworld/node_modules/component-bind/History.md
@@ -0,0 +1,13 @@
+
+1.0.0 / 2014-05-27
+==================
+
+  * index: use slice ref (#7, @viatropos)
+  * package: rename package to "component-bind"
+  * package: add "repository" field (#6, @repoify)
+  * package: add "component" section
+
+0.0.1 / 2010-01-03
+==================
+
+  * Initial release
diff --git a/helloworld/node_modules/component-bind/Makefile b/helloworld/node_modules/component-bind/Makefile
new file mode 100755
index 0000000..4e9c8d3
--- /dev/null
+++ b/helloworld/node_modules/component-bind/Makefile
@@ -0,0 +1,7 @@
+
+test:
+	@./node_modules/.bin/mocha \
+		--require should \
+		--reporter spec
+
+.PHONY: test
\ No newline at end of file
diff --git a/helloworld/node_modules/component-bind/Readme.md b/helloworld/node_modules/component-bind/Readme.md
new file mode 100755
index 0000000..6a8febc
--- /dev/null
+++ b/helloworld/node_modules/component-bind/Readme.md
@@ -0,0 +1,64 @@
+# bind
+
+  Function binding utility.
+
+## Installation
+
+```
+$ component install component/bind
+```
+
+## API
+
+   - [bind(obj, fn)](#bindobj-fn)
+   - [bind(obj, fn, ...)](#bindobj-fn-)
+   - [bind(obj, name)](#bindobj-name)
+<a name=""></a>
+ 
+<a name="bindobj-fn"></a>
+### bind(obj, fn)
+should bind the function to the given object.
+
+```js
+var tobi = { name: 'tobi' };
+
+function name() {
+  return this.name;
+}
+
+var fn = bind(tobi, name);
+fn().should.equal('tobi');
+```
+
+<a name="bindobj-fn-"></a>
+### bind(obj, fn, ...)
+should curry the remaining arguments.
+
+```js
+function add(a, b) {
+  return a + b;
+}
+
+bind(null, add)(1, 2).should.equal(3);
+bind(null, add, 1)(2).should.equal(3);
+bind(null, add, 1, 2)().should.equal(3);
+```
+
+<a name="bindobj-name"></a>
+### bind(obj, name)
+should bind the method of the given name.
+
+```js
+var tobi = { name: 'tobi' };
+
+tobi.getName = function() {
+  return this.name;
+};
+
+var fn = bind(tobi, 'getName');
+fn().should.equal('tobi');
+```
+
+## License 
+
+  MIT
\ No newline at end of file
diff --git a/helloworld/node_modules/component-bind/component.json b/helloworld/node_modules/component-bind/component.json
new file mode 100755
index 0000000..4e1e93f
--- /dev/null
+++ b/helloworld/node_modules/component-bind/component.json
@@ -0,0 +1,13 @@
+{
+  "name": "bind",
+  "version": "1.0.0",
+  "description": "function binding utility",
+  "keywords": [
+    "bind",
+    "utility"
+  ],
+  "dependencies": {},
+  "scripts": [
+    "index.js"
+  ]
+}
diff --git a/helloworld/node_modules/component-bind/index.js b/helloworld/node_modules/component-bind/index.js
new file mode 100755
index 0000000..4eeb2c0
--- /dev/null
+++ b/helloworld/node_modules/component-bind/index.js
@@ -0,0 +1,23 @@
+/**
+ * Slice reference.
+ */
+
+var slice = [].slice;
+
+/**
+ * Bind `obj` to `fn`.
+ *
+ * @param {Object} obj
+ * @param {Function|String} fn or string
+ * @return {Function}
+ * @api public
+ */
+
+module.exports = function(obj, fn){
+  if ('string' == typeof fn) fn = obj[fn];
+  if ('function' != typeof fn) throw new Error('bind() requires a function');
+  var args = slice.call(arguments, 2);
+  return function(){
+    return fn.apply(obj, args.concat(slice.call(arguments)));
+  }
+};
diff --git a/helloworld/node_modules/component-bind/package.json b/helloworld/node_modules/component-bind/package.json
new file mode 100755
index 0000000..e8b537c
--- /dev/null
+++ b/helloworld/node_modules/component-bind/package.json
@@ -0,0 +1,51 @@
+{
+  "_from": "component-bind@1.0.0",
+  "_id": "component-bind@1.0.0",
+  "_inBundle": false,
+  "_integrity": "sha1-AMYIq33Nk4l8AAllGx06jh5zu9E=",
+  "_location": "/component-bind",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "component-bind@1.0.0",
+    "name": "component-bind",
+    "escapedName": "component-bind",
+    "rawSpec": "1.0.0",
+    "saveSpec": null,
+    "fetchSpec": "1.0.0"
+  },
+  "_requiredBy": [
+    "/socket.io-client"
+  ],
+  "_resolved": "https://registry.npmjs.org/component-bind/-/component-bind-1.0.0.tgz",
+  "_shasum": "00c608ab7dcd93897c0009651b1d3a8e1e73bbd1",
+  "_spec": "component-bind@1.0.0",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/socket.io-client",
+  "bugs": {
+    "url": "https://github.com/component/bind/issues"
+  },
+  "bundleDependencies": false,
+  "component": {
+    "scripts": {
+      "bind/index.js": "index.js"
+    }
+  },
+  "deprecated": false,
+  "description": "function binding utility",
+  "devDependencies": {
+    "mocha": "*",
+    "should": "*"
+  },
+  "homepage": "https://github.com/component/bind#readme",
+  "keywords": [
+    "bind",
+    "utility"
+  ],
+  "name": "component-bind",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/component/bind.git"
+  },
+  "version": "1.0.0"
+}
diff --git a/helloworld/node_modules/component-emitter/History.md b/helloworld/node_modules/component-emitter/History.md
new file mode 100755
index 0000000..9189c60
--- /dev/null
+++ b/helloworld/node_modules/component-emitter/History.md
@@ -0,0 +1,68 @@
+
+1.2.1 / 2016-04-18
+==================
+
+ * enable client side use
+
+1.2.0 / 2014-02-12
+==================
+
+ * prefix events with `$` to support object prototype method names
+
+1.1.3 / 2014-06-20
+==================
+
+ * republish for npm
+ * add LICENSE file
+
+1.1.2 / 2014-02-10
+==================
+
+  * package: rename to "component-emitter"
+  * package: update "main" and "component" fields
+  * Add license to Readme (same format as the other components)
+  * created .npmignore
+  * travis stuff
+
+1.1.1 / 2013-12-01
+==================
+
+  * fix .once adding .on to the listener
+  * docs: Emitter#off()
+  * component: add `.repo` prop
+
+1.1.0 / 2013-10-20
+==================
+
+ * add `.addEventListener()` and `.removeEventListener()` aliases
+
+1.0.1 / 2013-06-27
+==================
+
+ * add support for legacy ie
+
+1.0.0 / 2013-02-26
+==================
+
+  * add `.off()` support for removing all listeners
+
+0.0.6 / 2012-10-08
+==================
+
+  * add `this._callbacks` initialization to prevent funky gotcha
+
+0.0.5 / 2012-09-07
+==================
+
+  * fix `Emitter.call(this)` usage
+
+0.0.3 / 2012-07-11
+==================
+
+  * add `.listeners()`
+  * rename `.has()` to `.hasListeners()`
+
+0.0.2 / 2012-06-28
+==================
+
+  * fix `.off()` with `.once()`-registered callbacks
diff --git a/helloworld/node_modules/component-emitter/LICENSE b/helloworld/node_modules/component-emitter/LICENSE
new file mode 100755
index 0000000..d6e43f2
--- /dev/null
+++ b/helloworld/node_modules/component-emitter/LICENSE
@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2014 Component contributors <dev@component.io>
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/component-emitter/Readme.md b/helloworld/node_modules/component-emitter/Readme.md
new file mode 100755
index 0000000..0466411
--- /dev/null
+++ b/helloworld/node_modules/component-emitter/Readme.md
@@ -0,0 +1,74 @@
+# Emitter [![Build Status](https://travis-ci.org/component/emitter.png)](https://travis-ci.org/component/emitter)
+
+  Event emitter component.
+
+## Installation
+
+```
+$ component install component/emitter
+```
+
+## API
+
+### Emitter(obj)
+
+  The `Emitter` may also be used as a mixin. For example
+  a "plain" object may become an emitter, or you may
+  extend an existing prototype.
+
+  As an `Emitter` instance:
+
+```js
+var Emitter = require('emitter');
+var emitter = new Emitter;
+emitter.emit('something');
+```
+
+  As a mixin:
+
+```js
+var Emitter = require('emitter');
+var user = { name: 'tobi' };
+Emitter(user);
+
+user.emit('im a user');
+```
+
+  As a prototype mixin:
+
+```js
+var Emitter = require('emitter');
+Emitter(User.prototype);
+```
+
+### Emitter#on(event, fn)
+
+  Register an `event` handler `fn`.
+
+### Emitter#once(event, fn)
+
+  Register a single-shot `event` handler `fn`,
+  removed immediately after it is invoked the
+  first time.
+
+### Emitter#off(event, fn)
+
+  * Pass `event` and `fn` to remove a listener.
+  * Pass `event` to remove all listeners on that event.
+  * Pass nothing to remove all listeners on all events.
+
+### Emitter#emit(event, ...)
+
+  Emit an `event` with variable option args.
+
+### Emitter#listeners(event)
+
+  Return an array of callbacks, or an empty array.
+
+### Emitter#hasListeners(event)
+
+  Check if this emitter has `event` handlers.
+
+## License
+
+MIT
diff --git a/helloworld/node_modules/component-emitter/index.js b/helloworld/node_modules/component-emitter/index.js
new file mode 100755
index 0000000..df94c78
--- /dev/null
+++ b/helloworld/node_modules/component-emitter/index.js
@@ -0,0 +1,163 @@
+
+/**
+ * Expose `Emitter`.
+ */
+
+if (typeof module !== 'undefined') {
+  module.exports = Emitter;
+}
+
+/**
+ * Initialize a new `Emitter`.
+ *
+ * @api public
+ */
+
+function Emitter(obj) {
+  if (obj) return mixin(obj);
+};
+
+/**
+ * Mixin the emitter properties.
+ *
+ * @param {Object} obj
+ * @return {Object}
+ * @api private
+ */
+
+function mixin(obj) {
+  for (var key in Emitter.prototype) {
+    obj[key] = Emitter.prototype[key];
+  }
+  return obj;
+}
+
+/**
+ * Listen on the given `event` with `fn`.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
+
+Emitter.prototype.on =
+Emitter.prototype.addEventListener = function(event, fn){
+  this._callbacks = this._callbacks || {};
+  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])
+    .push(fn);
+  return this;
+};
+
+/**
+ * Adds an `event` listener that will be invoked a single
+ * time then automatically removed.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
+
+Emitter.prototype.once = function(event, fn){
+  function on() {
+    this.off(event, on);
+    fn.apply(this, arguments);
+  }
+
+  on.fn = fn;
+  this.on(event, on);
+  return this;
+};
+
+/**
+ * Remove the given callback for `event` or all
+ * registered callbacks.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
+
+Emitter.prototype.off =
+Emitter.prototype.removeListener =
+Emitter.prototype.removeAllListeners =
+Emitter.prototype.removeEventListener = function(event, fn){
+  this._callbacks = this._callbacks || {};
+
+  // all
+  if (0 == arguments.length) {
+    this._callbacks = {};
+    return this;
+  }
+
+  // specific event
+  var callbacks = this._callbacks['$' + event];
+  if (!callbacks) return this;
+
+  // remove all handlers
+  if (1 == arguments.length) {
+    delete this._callbacks['$' + event];
+    return this;
+  }
+
+  // remove specific handler
+  var cb;
+  for (var i = 0; i < callbacks.length; i++) {
+    cb = callbacks[i];
+    if (cb === fn || cb.fn === fn) {
+      callbacks.splice(i, 1);
+      break;
+    }
+  }
+  return this;
+};
+
+/**
+ * Emit `event` with the given args.
+ *
+ * @param {String} event
+ * @param {Mixed} ...
+ * @return {Emitter}
+ */
+
+Emitter.prototype.emit = function(event){
+  this._callbacks = this._callbacks || {};
+  var args = [].slice.call(arguments, 1)
+    , callbacks = this._callbacks['$' + event];
+
+  if (callbacks) {
+    callbacks = callbacks.slice(0);
+    for (var i = 0, len = callbacks.length; i < len; ++i) {
+      callbacks[i].apply(this, args);
+    }
+  }
+
+  return this;
+};
+
+/**
+ * Return array of callbacks for `event`.
+ *
+ * @param {String} event
+ * @return {Array}
+ * @api public
+ */
+
+Emitter.prototype.listeners = function(event){
+  this._callbacks = this._callbacks || {};
+  return this._callbacks['$' + event] || [];
+};
+
+/**
+ * Check if this emitter has `event` handlers.
+ *
+ * @param {String} event
+ * @return {Boolean}
+ * @api public
+ */
+
+Emitter.prototype.hasListeners = function(event){
+  return !! this.listeners(event).length;
+};
diff --git a/helloworld/node_modules/component-inherit/History.md b/helloworld/node_modules/component-inherit/History.md
new file mode 100755
index 0000000..22d87e1
--- /dev/null
+++ b/helloworld/node_modules/component-inherit/History.md
@@ -0,0 +1,5 @@
+
+0.0.2 / 2012-09-03 
+==================
+
+  * fix typo in package.json
diff --git a/helloworld/node_modules/component-inherit/Makefile b/helloworld/node_modules/component-inherit/Makefile
new file mode 100755
index 0000000..ebbc52a
--- /dev/null
+++ b/helloworld/node_modules/component-inherit/Makefile
@@ -0,0 +1,16 @@
+
+build: components index.js
+	@component build
+
+components:
+	@Component install
+
+clean:
+	rm -fr build components template.js
+
+test:
+	@node_modules/.bin/mocha \
+		--require should \
+		--reporter spec
+
+.PHONY: clean test
diff --git a/helloworld/node_modules/component-inherit/Readme.md b/helloworld/node_modules/component-inherit/Readme.md
new file mode 100755
index 0000000..f03ab27
--- /dev/null
+++ b/helloworld/node_modules/component-inherit/Readme.md
@@ -0,0 +1,24 @@
+# inherit
+
+  Prototype inheritance utility.
+
+## Installation
+
+```
+$ component install component/inherit
+```
+
+## Example
+
+```js
+var inherit = require('inherit');
+
+function Human() {}
+function Woman() {}
+
+inherit(Woman, Human);
+```
+
+## License
+
+  MIT
diff --git a/helloworld/node_modules/component-inherit/component.json b/helloworld/node_modules/component-inherit/component.json
new file mode 100755
index 0000000..ae57747
--- /dev/null
+++ b/helloworld/node_modules/component-inherit/component.json
@@ -0,0 +1,10 @@
+{
+  "name": "inherit",
+  "description": "Prototype inheritance utility",
+  "version": "0.0.3",
+  "keywords": ["inherit", "utility"],
+  "dependencies": {},
+  "scripts": [
+    "index.js"
+  ]
+}
diff --git a/helloworld/node_modules/component-inherit/index.js b/helloworld/node_modules/component-inherit/index.js
new file mode 100755
index 0000000..aaebc03
--- /dev/null
+++ b/helloworld/node_modules/component-inherit/index.js
@@ -0,0 +1,7 @@
+
+module.exports = function(a, b){
+  var fn = function(){};
+  fn.prototype = b.prototype;
+  a.prototype = new fn;
+  a.prototype.constructor = a;
+};
\ No newline at end of file
diff --git a/helloworld/node_modules/component-inherit/package.json b/helloworld/node_modules/component-inherit/package.json
new file mode 100755
index 0000000..bef693e
--- /dev/null
+++ b/helloworld/node_modules/component-inherit/package.json
@@ -0,0 +1,48 @@
+{
+  "_from": "component-inherit@0.0.3",
+  "_id": "component-inherit@0.0.3",
+  "_inBundle": false,
+  "_integrity": "sha1-ZF/ErfWLcrZJ1crmUTVhnbJv8UM=",
+  "_location": "/component-inherit",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "component-inherit@0.0.3",
+    "name": "component-inherit",
+    "escapedName": "component-inherit",
+    "rawSpec": "0.0.3",
+    "saveSpec": null,
+    "fetchSpec": "0.0.3"
+  },
+  "_requiredBy": [
+    "/engine.io-client"
+  ],
+  "_resolved": "https://registry.npmjs.org/component-inherit/-/component-inherit-0.0.3.tgz",
+  "_shasum": "645fc4adf58b72b649d5cae65135619db26ff143",
+  "_spec": "component-inherit@0.0.3",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/engine.io-client",
+  "bugs": {
+    "url": "https://github.com/component/inherit/issues"
+  },
+  "bundleDependencies": false,
+  "component": {
+    "scripts": {
+      "inherit/index.js": "index.js"
+    }
+  },
+  "dependencies": {},
+  "deprecated": false,
+  "description": "Prototype inheritance utility",
+  "homepage": "https://github.com/component/inherit#readme",
+  "keywords": [
+    "inherit",
+    "utility"
+  ],
+  "name": "component-inherit",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/component/inherit.git"
+  },
+  "version": "0.0.3"
+}
diff --git a/helloworld/node_modules/component-inherit/test/inherit.js b/helloworld/node_modules/component-inherit/test/inherit.js
new file mode 100755
index 0000000..14852f2
--- /dev/null
+++ b/helloworld/node_modules/component-inherit/test/inherit.js
@@ -0,0 +1,21 @@
+
+/**
+ * Module dependencies.
+ */
+
+var inherit = require('..');
+
+describe('inherit(a, b)', function(){
+  it('should inherit b\'s prototype', function(){
+    function Loki(){}
+    function Animal(){}
+
+    Animal.prototype.species = 'unknown';
+
+    inherit(Loki, Animal);
+
+    var loki = new Loki;
+    loki.species.should.equal('unknown');
+    loki.constructor.should.equal(Loki);
+  })
+})
\ No newline at end of file
diff --git a/helloworld/node_modules/cookie/HISTORY.md b/helloworld/node_modules/cookie/HISTORY.md
new file mode 100755
index 0000000..5bd6485
--- /dev/null
+++ b/helloworld/node_modules/cookie/HISTORY.md
@@ -0,0 +1,118 @@
+0.3.1 / 2016-05-26
+==================
+
+  * Fix `sameSite: true` to work with draft-7 clients
+    - `true` now sends `SameSite=Strict` instead of `SameSite`
+
+0.3.0 / 2016-05-26
+==================
+
+  * Add `sameSite` option
+    - Replaces `firstPartyOnly` option, never implemented by browsers
+  * Improve error message when `encode` is not a function
+  * Improve error message when `expires` is not a `Date`
+
+0.2.4 / 2016-05-20
+==================
+
+  * perf: enable strict mode
+  * perf: use for loop in parse
+  * perf: use string concatination for serialization
+
+0.2.3 / 2015-10-25
+==================
+
+  * Fix cookie `Max-Age` to never be a floating point number
+
+0.2.2 / 2015-09-17
+==================
+
+  * Fix regression when setting empty cookie value
+    - Ease the new restriction, which is just basic header-level validation
+  * Fix typo in invalid value errors
+
+0.2.1 / 2015-09-17
+==================
+
+  * Throw on invalid values provided to `serialize`
+    - Ensures the resulting string is a valid HTTP header value
+
+0.2.0 / 2015-08-13
+==================
+
+  * Add `firstPartyOnly` option
+  * Throw better error for invalid argument to parse
+  * perf: hoist regular expression
+
+0.1.5 / 2015-09-17
+==================
+
+  * Fix regression when setting empty cookie value
+    - Ease the new restriction, which is just basic header-level validation
+  * Fix typo in invalid value errors
+
+0.1.4 / 2015-09-17
+==================
+
+  * Throw better error for invalid argument to parse
+  * Throw on invalid values provided to `serialize`
+    - Ensures the resulting string is a valid HTTP header value
+
+0.1.3 / 2015-05-19
+==================
+
+  * Reduce the scope of try-catch deopt
+  * Remove argument reassignments
+
+0.1.2 / 2014-04-16
+==================
+
+  * Remove unnecessary files from npm package
+
+0.1.1 / 2014-02-23
+==================
+
+  * Fix bad parse when cookie value contained a comma
+  * Fix support for `maxAge` of `0`
+
+0.1.0 / 2013-05-01
+==================
+
+  * Add `decode` option
+  * Add `encode` option
+
+0.0.6 / 2013-04-08
+==================
+
+  * Ignore cookie parts missing `=`
+
+0.0.5 / 2012-10-29
+==================
+
+  * Return raw cookie value if value unescape errors
+
+0.0.4 / 2012-06-21
+==================
+
+  * Use encode/decodeURIComponent for cookie encoding/decoding
+    - Improve server/client interoperability
+
+0.0.3 / 2012-06-06
+==================
+
+  * Only escape special characters per the cookie RFC
+
+0.0.2 / 2012-06-01
+==================
+
+  * Fix `maxAge` option to not throw error
+
+0.0.1 / 2012-05-28
+==================
+
+  * Add more tests
+
+0.0.0 / 2012-05-28
+==================
+
+  * Initial release
diff --git a/helloworld/node_modules/cookie/LICENSE b/helloworld/node_modules/cookie/LICENSE
new file mode 100755
index 0000000..058b6b4
--- /dev/null
+++ b/helloworld/node_modules/cookie/LICENSE
@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2012-2014 Roman Shtylman <shtylman@gmail.com>
+Copyright (c) 2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/helloworld/node_modules/cookie/README.md b/helloworld/node_modules/cookie/README.md
new file mode 100755
index 0000000..db0d078
--- /dev/null
+++ b/helloworld/node_modules/cookie/README.md
@@ -0,0 +1,220 @@
+# cookie
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Basic HTTP cookie parser and serializer for HTTP servers.
+
+## Installation
+
+```sh
+$ npm install cookie
+```
+
+## API
+
+```js
+var cookie = require('cookie');
+```
+
+### cookie.parse(str, options)
+
+Parse an HTTP `Cookie` header string and returning an object of all cookie name-value pairs.
+The `str` argument is the string representing a `Cookie` header value and `options` is an
+optional object containing additional parsing options.
+
+```js
+var cookies = cookie.parse('foo=bar; equation=E%3Dmc%5E2');
+// { foo: 'bar', equation: 'E=mc^2' }
+```
+
+#### Options
+
+`cookie.parse` accepts these properties in the options object.
+
+##### decode
+
+Specifies a function that will be used to decode a cookie's value. Since the value of a cookie
+has a limited character set (and must be a simple string), this function can be used to decode
+a previously-encoded cookie value into a JavaScript string or other object.
+
+The default function is the global `decodeURIComponent`, which will decode any URL-encoded
+sequences into their byte representations.
+
+**note** if an error is thrown from this function, the original, non-decoded cookie value will
+be returned as the cookie's value.
+
+### cookie.serialize(name, value, options)
+
+Serialize a cookie name-value pair into a `Set-Cookie` header string. The `name` argument is the
+name for the cookie, the `value` argument is the value to set the cookie to, and the `options`
+argument is an optional object containing additional serialization options.
+
+```js
+var setCookie = cookie.serialize('foo', 'bar');
+// foo=bar
+```
+
+#### Options
+
+`cookie.serialize` accepts these properties in the options object.
+
+##### domain
+
+Specifies the value for the [`Domain` `Set-Cookie` attribute][rfc-6266-5.2.3]. By default, no
+domain is set, and most clients will consider the cookie to apply to only the current domain.
+
+##### encode
+
+Specifies a function that will be used to encode a cookie's value. Since value of a cookie
+has a limited character set (and must be a simple string), this function can be used to encode
+a value into a string suited for a cookie's value.
+
+The default function is the global `ecodeURIComponent`, which will encode a JavaScript string
+into UTF-8 byte sequences and then URL-encode any that fall outside of the cookie range.
+
+##### expires
+
+Specifies the `Date` object to be the value for the [`Expires` `Set-Cookie` attribute][rfc-6266-5.2.1].
+By default, no expiration is set, and most clients will consider this a "non-persistent cookie" and
+will delete it on a condition like exiting a web browser application.
+
+**note** the [cookie storage model specification][rfc-6266-5.3] states that if both `expires` and
+`magAge` are set, then `maxAge` takes precedence, but it is possiblke not all clients by obey this,
+so if both are set, they should point to the same date and time.
+
+##### httpOnly
+
+Specifies the `boolean` value for the [`HttpOnly` `Set-Cookie` attribute][rfc-6266-5.2.6]. When truthy,
+the `HttpOnly` attribute is set, otherwise it is not. By default, the `HttpOnly` attribute is not set.
+
+**note** be careful when setting this to `true`, as compliant clients will not allow client-side
+JavaScript to see the cookie in `document.cookie`.
+
+##### maxAge
+
+Specifies the `number` (in seconds) to be the value for the [`Max-Age` `Set-Cookie` attribute][rfc-6266-5.2.2].
+The given number will be converted to an integer by rounding down. By default, no maximum age is set.
+
+**note** the [cookie storage model specification][rfc-6266-5.3] states that if both `expires` and
+`magAge` are set, then `maxAge` takes precedence, but it is possiblke not all clients by obey this,
+so if both are set, they should point to the same date and time.
+
+##### path
+
+Specifies the value for the [`Path` `Set-Cookie` attribute][rfc-6266-5.2.4]. By default, the path
+is considered the ["default path"][rfc-6266-5.1.4]. By default, no maximum age is set, and most
+clients will consider this a "non-persistent cookie" and will delete it on a condition like exiting
+a web browser application.
+
+##### sameSite
+
+Specifies the `boolean` or `string` to be the value for the [`SameSite` `Set-Cookie` attribute][draft-west-first-party-cookies-07].
+
+  - `true` will set the `SameSite` attribute to `Strict` for strict same site enforcement.
+  - `false` will not set the `SameSite` attribute.
+  - `'lax'` will set the `SameSite` attribute to `Lax` for lax same site enforcement.
+  - `'strict'` will set the `SameSite` attribute to `Strict` for strict same site enforcement.
+
+More information about the different enforcement levels can be found in the specification
+https://tools.ietf.org/html/draft-west-first-party-cookies-07#section-4.1.1
+
+**note** This is an attribute that has not yet been fully standardized, and may change in the future.
+This also means many clients may ignore this attribute until they understand it.
+
+##### secure
+
+Specifies the `boolean` value for the [`Secure` `Set-Cookie` attribute][rfc-6266-5.2.5]. When truthy,
+the `Secure` attribute is set, otherwise it is not. By default, the `Secure` attribute is not set.
+
+**note** be careful when setting this to `true`, as compliant clients will not send the cookie back to
+the server in the future if the browser does not have an HTTPS connection.
+
+## Example
+
+The following example uses this module in conjunction with the Node.js core HTTP server
+to prompt a user for their name and display it back on future visits.
+
+```js
+var cookie = require('cookie');
+var escapeHtml = require('escape-html');
+var http = require('http');
+var url = require('url');
+
+function onRequest(req, res) {
+  // Parse the query string
+  var query = url.parse(req.url, true, true).query;
+
+  if (query && query.name) {
+    // Set a new cookie with the name
+    res.setHeader('Set-Cookie', cookie.serialize('name', String(query.name), {
+      httpOnly: true,
+      maxAge: 60 * 60 * 24 * 7 // 1 week
+    }));
+
+    // Redirect back after setting cookie
+    res.statusCode = 302;
+    res.setHeader('Location', req.headers.referer || '/');
+    res.end();
+    return;
+  }
+
+  // Parse the cookies on the request
+  var cookies = cookie.parse(req.headers.cookie || '');
+
+  // Get the visitor name set in the cookie
+  var name = cookies.name;
+
+  res.setHeader('Content-Type', 'text/html; charset=UTF-8');
+
+  if (name) {
+    res.write('<p>Welcome back, <b>' + escapeHtml(name) + '</b>!</p>');
+  } else {
+    res.write('<p>Hello, new visitor!</p>');
+  }
+
+  res.write('<form method="GET">');
+  res.write('<input placeholder="enter your name" name="name"> <input type="submit" value="Set Name">');
+  res.end('</form');
+}
+
+http.createServer(onRequest).listen(3000);
+```
+
+## Testing
+
+```sh
+$ npm test
+```
+
+## References
+
+- [RFC 6266: HTTP State Management Mechanism][rfc-6266]
+- [Same-site Cookies][draft-west-first-party-cookies-07]
+
+[draft-west-first-party-cookies-07]: https://tools.ietf.org/html/draft-west-first-party-cookies-07
+[rfc-6266]: https://tools.ietf.org/html/rfc6266
+[rfc-6266-5.1.4]: https://tools.ietf.org/html/rfc6266#section-5.1.4
+[rfc-6266-5.2.1]: https://tools.ietf.org/html/rfc6266#section-5.2.1
+[rfc-6266-5.2.2]: https://tools.ietf.org/html/rfc6266#section-5.2.2
+[rfc-6266-5.2.3]: https://tools.ietf.org/html/rfc6266#section-5.2.3
+[rfc-6266-5.2.4]: https://tools.ietf.org/html/rfc6266#section-5.2.4
+[rfc-6266-5.3]: https://tools.ietf.org/html/rfc6266#section-5.3
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/cookie.svg
+[npm-url]: https://npmjs.org/package/cookie
+[node-version-image]: https://img.shields.io/node/v/cookie.svg
+[node-version-url]: https://nodejs.org/en/download
+[travis-image]: https://img.shields.io/travis/jshttp/cookie/master.svg
+[travis-url]: https://travis-ci.org/jshttp/cookie
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/cookie/master.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/cookie?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/cookie.svg
+[downloads-url]: https://npmjs.org/package/cookie
diff --git a/helloworld/node_modules/cookie/index.js b/helloworld/node_modules/cookie/index.js
new file mode 100755
index 0000000..ab2e467
--- /dev/null
+++ b/helloworld/node_modules/cookie/index.js
@@ -0,0 +1,195 @@
+/*!
+ * cookie
+ * Copyright(c) 2012-2014 Roman Shtylman
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+exports.parse = parse;
+exports.serialize = serialize;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var decode = decodeURIComponent;
+var encode = encodeURIComponent;
+var pairSplitRegExp = /; */;
+
+/**
+ * RegExp to match field-content in RFC 7230 sec 3.2
+ *
+ * field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
+ * field-vchar   = VCHAR / obs-text
+ * obs-text      = %x80-FF
+ */
+
+var fieldContentRegExp = /^[\u0009\u0020-\u007e\u0080-\u00ff]+$/;
+
+/**
+ * Parse a cookie header.
+ *
+ * Parse the given cookie header string into an object
+ * The object has the various cookies as keys(names) => values
+ *
+ * @param {string} str
+ * @param {object} [options]
+ * @return {object}
+ * @public
+ */
+
+function parse(str, options) {
+  if (typeof str !== 'string') {
+    throw new TypeError('argument str must be a string');
+  }
+
+  var obj = {}
+  var opt = options || {};
+  var pairs = str.split(pairSplitRegExp);
+  var dec = opt.decode || decode;
+
+  for (var i = 0; i < pairs.length; i++) {
+    var pair = pairs[i];
+    var eq_idx = pair.indexOf('=');
+
+    // skip things that don't look like key=value
+    if (eq_idx < 0) {
+      continue;
+    }
+
+    var key = pair.substr(0, eq_idx).trim()
+    var val = pair.substr(++eq_idx, pair.length).trim();
+
+    // quoted values
+    if ('"' == val[0]) {
+      val = val.slice(1, -1);
+    }
+
+    // only assign once
+    if (undefined == obj[key]) {
+      obj[key] = tryDecode(val, dec);
+    }
+  }
+
+  return obj;
+}
+
+/**
+ * Serialize data into a cookie header.
+ *
+ * Serialize the a name value pair into a cookie string suitable for
+ * http headers. An optional options object specified cookie parameters.
+ *
+ * serialize('foo', 'bar', { httpOnly: true })
+ *   => "foo=bar; httpOnly"
+ *
+ * @param {string} name
+ * @param {string} val
+ * @param {object} [options]
+ * @return {string}
+ * @public
+ */
+
+function serialize(name, val, options) {
+  var opt = options || {};
+  var enc = opt.encode || encode;
+
+  if (typeof enc !== 'function') {
+    throw new TypeError('option encode is invalid');
+  }
+
+  if (!fieldContentRegExp.test(name)) {
+    throw new TypeError('argument name is invalid');
+  }
+
+  var value = enc(val);
+
+  if (value && !fieldContentRegExp.test(value)) {
+    throw new TypeError('argument val is invalid');
+  }
+
+  var str = name + '=' + value;
+
+  if (null != opt.maxAge) {
+    var maxAge = opt.maxAge - 0;
+    if (isNaN(maxAge)) throw new Error('maxAge should be a Number');
+    str += '; Max-Age=' + Math.floor(maxAge);
+  }
+
+  if (opt.domain) {
+    if (!fieldContentRegExp.test(opt.domain)) {
+      throw new TypeError('option domain is invalid');
+    }
+
+    str += '; Domain=' + opt.domain;
+  }
+
+  if (opt.path) {
+    if (!fieldContentRegExp.test(opt.path)) {
+      throw new TypeError('option path is invalid');
+    }
+
+    str += '; Path=' + opt.path;
+  }
+
+  if (opt.expires) {
+    if (typeof opt.expires.toUTCString !== 'function') {
+      throw new TypeError('option expires is invalid');
+    }
+
+    str += '; Expires=' + opt.expires.toUTCString();
+  }
+
+  if (opt.httpOnly) {
+    str += '; HttpOnly';
+  }
+
+  if (opt.secure) {
+    str += '; Secure';
+  }
+
+  if (opt.sameSite) {
+    var sameSite = typeof opt.sameSite === 'string'
+      ? opt.sameSite.toLowerCase() : opt.sameSite;
+
+    switch (sameSite) {
+      case true:
+        str += '; SameSite=Strict';
+        break;
+      case 'lax':
+        str += '; SameSite=Lax';
+        break;
+      case 'strict':
+        str += '; SameSite=Strict';
+        break;
+      default:
+        throw new TypeError('option sameSite is invalid');
+    }
+  }
+
+  return str;
+}
+
+/**
+ * Try decoding a string using a decoding function.
+ *
+ * @param {string} str
+ * @param {function} decode
+ * @private
+ */
+
+function tryDecode(str, decode) {
+  try {
+    return decode(str);
+  } catch (e) {
+    return str;
+  }
+}
diff --git a/helloworld/node_modules/debug/CHANGELOG.md b/helloworld/node_modules/debug/CHANGELOG.md
new file mode 100755
index 0000000..820d21e
--- /dev/null
+++ b/helloworld/node_modules/debug/CHANGELOG.md
@@ -0,0 +1,395 @@
+
+3.1.0 / 2017-09-26
+==================
+
+  * Add `DEBUG_HIDE_DATE` env var (#486)
+  * Remove ReDoS regexp in %o formatter (#504)
+  * Remove "component" from package.json
+  * Remove `component.json`
+  * Ignore package-lock.json
+  * Examples: fix colors printout
+  * Fix: browser detection
+  * Fix: spelling mistake (#496, @EdwardBetts)
+
+3.0.1 / 2017-08-24
+==================
+
+  * Fix: Disable colors in Edge and Internet Explorer (#489)
+
+3.0.0 / 2017-08-08
+==================
+
+  * Breaking: Remove DEBUG_FD (#406)
+  * Breaking: Use `Date#toISOString()` instead to `Date#toUTCString()` when output is not a TTY (#418)
+  * Breaking: Make millisecond timer namespace specific and allow 'always enabled' output (#408)
+  * Addition: document `enabled` flag (#465)
+  * Addition: add 256 colors mode (#481)
+  * Addition: `enabled()` updates existing debug instances, add `destroy()` function (#440)
+  * Update: component: update "ms" to v2.0.0
+  * Update: separate the Node and Browser tests in Travis-CI
+  * Update: refactor Readme, fixed documentation, added "Namespace Colors" section, redid screenshots
+  * Update: separate Node.js and web browser examples for organization
+  * Update: update "browserify" to v14.4.0
+  * Fix: fix Readme typo (#473)
+
+2.6.9 / 2017-09-22
+==================
+
+  * remove ReDoS regexp in %o formatter (#504)
+
+2.6.8 / 2017-05-18
+==================
+
+  * Fix: Check for undefined on browser globals (#462, @marbemac)
+
+2.6.7 / 2017-05-16
+==================
+
+  * Fix: Update ms to 2.0.0 to fix regular expression denial of service vulnerability (#458, @hubdotcom)
+  * Fix: Inline extend function in node implementation (#452, @dougwilson)
+  * Docs: Fix typo (#455, @msasad)
+
+2.6.5 / 2017-04-27
+==================
+  
+  * Fix: null reference check on window.documentElement.style.WebkitAppearance (#447, @thebigredgeek)
+  * Misc: clean up browser reference checks (#447, @thebigredgeek)
+  * Misc: add npm-debug.log to .gitignore (@thebigredgeek)
+
+
+2.6.4 / 2017-04-20
+==================
+
+  * Fix: bug that would occur if process.env.DEBUG is a non-string value. (#444, @LucianBuzzo)
+  * Chore: ignore bower.json in npm installations. (#437, @joaovieira)
+  * Misc: update "ms" to v0.7.3 (@tootallnate)
+
+2.6.3 / 2017-03-13
+==================
+
+  * Fix: Electron reference to `process.env.DEBUG` (#431, @paulcbetts)
+  * Docs: Changelog fix (@thebigredgeek)
+
+2.6.2 / 2017-03-10
+==================
+
+  * Fix: DEBUG_MAX_ARRAY_LENGTH (#420, @slavaGanzin)
+  * Docs: Add backers and sponsors from Open Collective (#422, @piamancini)
+  * Docs: Add Slackin invite badge (@tootallnate)
+
+2.6.1 / 2017-02-10
+==================
+
+  * Fix: Module's `export default` syntax fix for IE8 `Expected identifier` error
+  * Fix: Whitelist DEBUG_FD for values 1 and 2 only (#415, @pi0)
+  * Fix: IE8 "Expected identifier" error (#414, @vgoma)
+  * Fix: Namespaces would not disable once enabled (#409, @musikov)
+
+2.6.0 / 2016-12-28
+==================
+
+  * Fix: added better null pointer checks for browser useColors (@thebigredgeek)
+  * Improvement: removed explicit `window.debug` export (#404, @tootallnate)
+  * Improvement: deprecated `DEBUG_FD` environment variable (#405, @tootallnate)
+
+2.5.2 / 2016-12-25
+==================
+
+  * Fix: reference error on window within webworkers (#393, @KlausTrainer)
+  * Docs: fixed README typo (#391, @lurch)
+  * Docs: added notice about v3 api discussion (@thebigredgeek)
+
+2.5.1 / 2016-12-20
+==================
+
+  * Fix: babel-core compatibility
+
+2.5.0 / 2016-12-20
+==================
+
+  * Fix: wrong reference in bower file (@thebigredgeek)
+  * Fix: webworker compatibility (@thebigredgeek)
+  * Fix: output formatting issue (#388, @kribblo)
+  * Fix: babel-loader compatibility (#383, @escwald)
+  * Misc: removed built asset from repo and publications (@thebigredgeek)
+  * Misc: moved source files to /src (#378, @yamikuronue)
+  * Test: added karma integration and replaced babel with browserify for browser tests (#378, @yamikuronue)
+  * Test: coveralls integration (#378, @yamikuronue)
+  * Docs: simplified language in the opening paragraph (#373, @yamikuronue)
+
+2.4.5 / 2016-12-17
+==================
+
+  * Fix: `navigator` undefined in Rhino (#376, @jochenberger)
+  * Fix: custom log function (#379, @hsiliev)
+  * Improvement: bit of cleanup + linting fixes (@thebigredgeek)
+  * Improvement: rm non-maintainted `dist/` dir (#375, @freewil)
+  * Docs: simplified language in the opening paragraph. (#373, @yamikuronue)
+
+2.4.4 / 2016-12-14
+==================
+
+  * Fix: work around debug being loaded in preload scripts for electron (#368, @paulcbetts)
+
+2.4.3 / 2016-12-14
+==================
+
+  * Fix: navigation.userAgent error for react native (#364, @escwald)
+
+2.4.2 / 2016-12-14
+==================
+
+  * Fix: browser colors (#367, @tootallnate)
+  * Misc: travis ci integration (@thebigredgeek)
+  * Misc: added linting and testing boilerplate with sanity check (@thebigredgeek)
+
+2.4.1 / 2016-12-13
+==================
+
+  * Fix: typo that broke the package (#356)
+
+2.4.0 / 2016-12-13
+==================
+
+  * Fix: bower.json references unbuilt src entry point (#342, @justmatt)
+  * Fix: revert "handle regex special characters" (@tootallnate)
+  * Feature: configurable util.inspect()`options for NodeJS (#327, @tootallnate)
+  * Feature: %O`(big O) pretty-prints objects (#322, @tootallnate)
+  * Improvement: allow colors in workers (#335, @botverse)
+  * Improvement: use same color for same namespace. (#338, @lchenay)
+
+2.3.3 / 2016-11-09
+==================
+
+  * Fix: Catch `JSON.stringify()` errors (#195, Jovan Alleyne)
+  * Fix: Returning `localStorage` saved values (#331, Levi Thomason)
+  * Improvement: Don't create an empty object when no `process` (Nathan Rajlich)
+
+2.3.2 / 2016-11-09
+==================
+
+  * Fix: be super-safe in index.js as well (@TooTallNate)
+  * Fix: should check whether process exists (Tom Newby)
+
+2.3.1 / 2016-11-09
+==================
+
+  * Fix: Added electron compatibility (#324, @paulcbetts)
+  * Improvement: Added performance optimizations (@tootallnate)
+  * Readme: Corrected PowerShell environment variable example (#252, @gimre)
+  * Misc: Removed yarn lock file from source control (#321, @fengmk2)
+
+2.3.0 / 2016-11-07
+==================
+
+  * Fix: Consistent placement of ms diff at end of output (#215, @gorangajic)
+  * Fix: Escaping of regex special characters in namespace strings (#250, @zacronos)
+  * Fix: Fixed bug causing crash on react-native (#282, @vkarpov15)
+  * Feature: Enabled ES6+ compatible import via default export (#212 @bucaran)
+  * Feature: Added %O formatter to reflect Chrome's console.log capability (#279, @oncletom)
+  * Package: Update "ms" to 0.7.2 (#315, @DevSide)
+  * Package: removed superfluous version property from bower.json (#207 @kkirsche)
+  * Readme: fix USE_COLORS to DEBUG_COLORS
+  * Readme: Doc fixes for format string sugar (#269, @mlucool)
+  * Readme: Updated docs for DEBUG_FD and DEBUG_COLORS environment variables (#232, @mattlyons0)
+  * Readme: doc fixes for PowerShell (#271 #243, @exoticknight @unreadable)
+  * Readme: better docs for browser support (#224, @matthewmueller)
+  * Tooling: Added yarn integration for development (#317, @thebigredgeek)
+  * Misc: Renamed History.md to CHANGELOG.md (@thebigredgeek)
+  * Misc: Added license file (#226 #274, @CantemoInternal @sdaitzman)
+  * Misc: Updated contributors (@thebigredgeek)
+
+2.2.0 / 2015-05-09
+==================
+
+  * package: update "ms" to v0.7.1 (#202, @dougwilson)
+  * README: add logging to file example (#193, @DanielOchoa)
+  * README: fixed a typo (#191, @amir-s)
+  * browser: expose `storage` (#190, @stephenmathieson)
+  * Makefile: add a `distclean` target (#189, @stephenmathieson)
+
+2.1.3 / 2015-03-13
+==================
+
+  * Updated stdout/stderr example (#186)
+  * Updated example/stdout.js to match debug current behaviour
+  * Renamed example/stderr.js to stdout.js
+  * Update Readme.md (#184)
+  * replace high intensity foreground color for bold (#182, #183)
+
+2.1.2 / 2015-03-01
+==================
+
+  * dist: recompile
+  * update "ms" to v0.7.0
+  * package: update "browserify" to v9.0.3
+  * component: fix "ms.js" repo location
+  * changed bower package name
+  * updated documentation about using debug in a browser
+  * fix: security error on safari (#167, #168, @yields)
+
+2.1.1 / 2014-12-29
+==================
+
+  * browser: use `typeof` to check for `console` existence
+  * browser: check for `console.log` truthiness (fix IE 8/9)
+  * browser: add support for Chrome apps
+  * Readme: added Windows usage remarks
+  * Add `bower.json` to properly support bower install
+
+2.1.0 / 2014-10-15
+==================
+
+  * node: implement `DEBUG_FD` env variable support
+  * package: update "browserify" to v6.1.0
+  * package: add "license" field to package.json (#135, @panuhorsmalahti)
+
+2.0.0 / 2014-09-01
+==================
+
+  * package: update "browserify" to v5.11.0
+  * node: use stderr rather than stdout for logging (#29, @stephenmathieson)
+
+1.0.4 / 2014-07-15
+==================
+
+  * dist: recompile
+  * example: remove `console.info()` log usage
+  * example: add "Content-Type" UTF-8 header to browser example
+  * browser: place %c marker after the space character
+  * browser: reset the "content" color via `color: inherit`
+  * browser: add colors support for Firefox >= v31
+  * debug: prefer an instance `log()` function over the global one (#119)
+  * Readme: update documentation about styled console logs for FF v31 (#116, @wryk)
+
+1.0.3 / 2014-07-09
+==================
+
+  * Add support for multiple wildcards in namespaces (#122, @seegno)
+  * browser: fix lint
+
+1.0.2 / 2014-06-10
+==================
+
+  * browser: update color palette (#113, @gscottolson)
+  * common: make console logging function configurable (#108, @timoxley)
+  * node: fix %o colors on old node <= 0.8.x
+  * Makefile: find node path using shell/which (#109, @timoxley)
+
+1.0.1 / 2014-06-06
+==================
+
+  * browser: use `removeItem()` to clear localStorage
+  * browser, node: don't set DEBUG if namespaces is undefined (#107, @leedm777)
+  * package: add "contributors" section
+  * node: fix comment typo
+  * README: list authors
+
+1.0.0 / 2014-06-04
+==================
+
+  * make ms diff be global, not be scope
+  * debug: ignore empty strings in enable()
+  * node: make DEBUG_COLORS able to disable coloring
+  * *: export the `colors` array
+  * npmignore: don't publish the `dist` dir
+  * Makefile: refactor to use browserify
+  * package: add "browserify" as a dev dependency
+  * Readme: add Web Inspector Colors section
+  * node: reset terminal color for the debug content
+  * node: map "%o" to `util.inspect()`
+  * browser: map "%j" to `JSON.stringify()`
+  * debug: add custom "formatters"
+  * debug: use "ms" module for humanizing the diff
+  * Readme: add "bash" syntax highlighting
+  * browser: add Firebug color support
+  * browser: add colors for WebKit browsers
+  * node: apply log to `console`
+  * rewrite: abstract common logic for Node & browsers
+  * add .jshintrc file
+
+0.8.1 / 2014-04-14
+==================
+
+  * package: re-add the "component" section
+
+0.8.0 / 2014-03-30
+==================
+
+  * add `enable()` method for nodejs. Closes #27
+  * change from stderr to stdout
+  * remove unnecessary index.js file
+
+0.7.4 / 2013-11-13
+==================
+
+  * remove "browserify" key from package.json (fixes something in browserify)
+
+0.7.3 / 2013-10-30
+==================
+
+  * fix: catch localStorage security error when cookies are blocked (Chrome)
+  * add debug(err) support. Closes #46
+  * add .browser prop to package.json. Closes #42
+
+0.7.2 / 2013-02-06
+==================
+
+  * fix package.json
+  * fix: Mobile Safari (private mode) is broken with debug
+  * fix: Use unicode to send escape character to shell instead of octal to work with strict mode javascript
+
+0.7.1 / 2013-02-05
+==================
+
+  * add repository URL to package.json
+  * add DEBUG_COLORED to force colored output
+  * add browserify support
+  * fix component. Closes #24
+
+0.7.0 / 2012-05-04
+==================
+
+  * Added .component to package.json
+  * Added debug.component.js build
+
+0.6.0 / 2012-03-16
+==================
+
+  * Added support for "-" prefix in DEBUG [Vinay Pulim]
+  * Added `.enabled` flag to the node version [TooTallNate]
+
+0.5.0 / 2012-02-02
+==================
+
+  * Added: humanize diffs. Closes #8
+  * Added `debug.disable()` to the CS variant
+  * Removed padding. Closes #10
+  * Fixed: persist client-side variant again. Closes #9
+
+0.4.0 / 2012-02-01
+==================
+
+  * Added browser variant support for older browsers [TooTallNate]
+  * Added `debug.enable('project:*')` to browser variant [TooTallNate]
+  * Added padding to diff (moved it to the right)
+
+0.3.0 / 2012-01-26
+==================
+
+  * Added millisecond diff when isatty, otherwise UTC string
+
+0.2.0 / 2012-01-22
+==================
+
+  * Added wildcard support
+
+0.1.0 / 2011-12-02
+==================
+
+  * Added: remove colors unless stderr isatty [TooTallNate]
+
+0.0.1 / 2010-01-03
+==================
+
+  * Initial release
diff --git a/helloworld/node_modules/debug/LICENSE b/helloworld/node_modules/debug/LICENSE
new file mode 100755
index 0000000..658c933
--- /dev/null
+++ b/helloworld/node_modules/debug/LICENSE
@@ -0,0 +1,19 @@
+(The MIT License)
+
+Copyright (c) 2014 TJ Holowaychuk <tj@vision-media.ca>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
+and associated documentation files (the 'Software'), to deal in the Software without restriction, 
+including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial 
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT 
+LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/helloworld/node_modules/debug/README.md b/helloworld/node_modules/debug/README.md
new file mode 100755
index 0000000..88dae35
--- /dev/null
+++ b/helloworld/node_modules/debug/README.md
@@ -0,0 +1,455 @@
+# debug
+[![Build Status](https://travis-ci.org/visionmedia/debug.svg?branch=master)](https://travis-ci.org/visionmedia/debug)  [![Coverage Status](https://coveralls.io/repos/github/visionmedia/debug/badge.svg?branch=master)](https://coveralls.io/github/visionmedia/debug?branch=master)  [![Slack](https://visionmedia-community-slackin.now.sh/badge.svg)](https://visionmedia-community-slackin.now.sh/) [![OpenCollective](https://opencollective.com/debug/backers/badge.svg)](#backers)
+[![OpenCollective](https://opencollective.com/debug/sponsors/badge.svg)](#sponsors)
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png">
+
+A tiny JavaScript debugging utility modelled after Node.js core's debugging
+technique. Works in Node.js and web browsers.
+
+## Installation
+
+```bash
+$ npm install debug
+```
+
+## Usage
+
+`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole.
+
+Example [_app.js_](./examples/node/app.js):
+
+```js
+var debug = require('debug')('http')
+  , http = require('http')
+  , name = 'My App';
+
+// fake app
+
+debug('booting %o', name);
+
+http.createServer(function(req, res){
+  debug(req.method + ' ' + req.url);
+  res.end('hello\n');
+}).listen(3000, function(){
+  debug('listening');
+});
+
+// fake worker of some kind
+
+require('./worker');
+```
+
+Example [_worker.js_](./examples/node/worker.js):
+
+```js
+var a = require('debug')('worker:a')
+  , b = require('debug')('worker:b');
+
+function work() {
+  a('doing lots of uninteresting work');
+  setTimeout(work, Math.random() * 1000);
+}
+
+work();
+
+function workb() {
+  b('doing some work');
+  setTimeout(workb, Math.random() * 2000);
+}
+
+workb();
+```
+
+The `DEBUG` environment variable is then used to enable these based on space or
+comma-delimited names.
+
+Here are some examples:
+
+<img width="647" alt="screen shot 2017-08-08 at 12 53 04 pm" src="https://user-images.githubusercontent.com/71256/29091703-a6302cdc-7c38-11e7-8304-7c0b3bc600cd.png">
+<img width="647" alt="screen shot 2017-08-08 at 12 53 38 pm" src="https://user-images.githubusercontent.com/71256/29091700-a62a6888-7c38-11e7-800b-db911291ca2b.png">
+<img width="647" alt="screen shot 2017-08-08 at 12 53 25 pm" src="https://user-images.githubusercontent.com/71256/29091701-a62ea114-7c38-11e7-826a-2692bedca740.png">
+
+#### Windows command prompt notes
+
+##### CMD
+
+On Windows the environment variable is set using the `set` command.
+
+```cmd
+set DEBUG=*,-not_this
+```
+
+Example:
+
+```cmd
+set DEBUG=* & node app.js
+```
+
+##### PowerShell (VS Code default)
+
+PowerShell uses different syntax to set environment variables.
+
+```cmd
+$env:DEBUG = "*,-not_this"
+```
+
+Example:
+
+```cmd
+$env:DEBUG='app';node app.js
+```
+
+Then, run the program to be debugged as usual.
+
+npm script example:
+```js
+  "windowsDebug": "@powershell -Command $env:DEBUG='*';node app.js",
+```
+
+## Namespace Colors
+
+Every debug instance has a color generated for it based on its namespace name.
+This helps when visually parsing the debug output to identify which debug instance
+a debug line belongs to.
+
+#### Node.js
+
+In Node.js, colors are enabled when stderr is a TTY. You also _should_ install
+the [`supports-color`](https://npmjs.org/supports-color) module alongside debug,
+otherwise debug will only use a small handful of basic colors.
+
+<img width="521" src="https://user-images.githubusercontent.com/71256/29092181-47f6a9e6-7c3a-11e7-9a14-1928d8a711cd.png">
+
+#### Web Browser
+
+Colors are also enabled on "Web Inspectors" that understand the `%c` formatting
+option. These are WebKit web inspectors, Firefox ([since version
+31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/))
+and the Firebug plugin for Firefox (any version).
+
+<img width="524" src="https://user-images.githubusercontent.com/71256/29092033-b65f9f2e-7c39-11e7-8e32-f6f0d8e865c1.png">
+
+
+## Millisecond diff
+
+When actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the "+NNNms" will show you how much time was spent between calls.
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png">
+
+When stdout is not a TTY, `Date#toISOString()` is used, making it more useful for logging the debug information as shown below:
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091956-6bd78372-7c39-11e7-8c55-c948396d6edd.png">
+
+
+## Conventions
+
+If you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use ":" to separate features. For example "bodyParser" from Connect would then be "connect:bodyParser".  If you append a "*" to the end of your name, it will always be enabled regardless of the setting of the DEBUG environment variable.  You can then use it for normal output as well as debug output.
+
+## Wildcards
+
+The `*` character may be used as a wildcard. Suppose for example your library has
+debuggers named "connect:bodyParser", "connect:compress", "connect:session",
+instead of listing all three with
+`DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do
+`DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`.
+
+You can also exclude specific debuggers by prefixing them with a "-" character.
+For example, `DEBUG=*,-connect:*` would include all debuggers except those
+starting with "connect:".
+
+## Environment Variables
+
+When running through Node.js, you can set a few environment variables that will
+change the behavior of the debug logging:
+
+| Name      | Purpose                                         |
+|-----------|-------------------------------------------------|
+| `DEBUG`   | Enables/disables specific debugging namespaces. |
+| `DEBUG_HIDE_DATE` | Hide date from debug output (non-TTY).  |
+| `DEBUG_COLORS`| Whether or not to use colors in the debug output. |
+| `DEBUG_DEPTH` | Object inspection depth.                    |
+| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. |
+
+
+__Note:__ The environment variables beginning with `DEBUG_` end up being
+converted into an Options object that gets used with `%o`/`%O` formatters.
+See the Node.js documentation for
+[`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options)
+for the complete list.
+
+## Formatters
+
+Debug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting.
+Below are the officially supported formatters:
+
+| Formatter | Representation |
+|-----------|----------------|
+| `%O`      | Pretty-print an Object on multiple lines. |
+| `%o`      | Pretty-print an Object all on a single line. |
+| `%s`      | String. |
+| `%d`      | Number (both integer and float). |
+| `%j`      | JSON. Replaced with the string '[Circular]' if the argument contains circular references. |
+| `%%`      | Single percent sign ('%'). This does not consume an argument. |
+
+
+### Custom formatters
+
+You can add custom formatters by extending the `debug.formatters` object.
+For example, if you wanted to add support for rendering a Buffer as hex with
+`%h`, you could do something like:
+
+```js
+const createDebug = require('debug')
+createDebug.formatters.h = (v) => {
+  return v.toString('hex')
+}
+
+// …elsewhere
+const debug = createDebug('foo')
+debug('this is hex: %h', new Buffer('hello world'))
+//   foo this is hex: 68656c6c6f20776f726c6421 +0ms
+```
+
+
+## Browser Support
+
+You can build a browser-ready script using [browserify](https://github.com/substack/node-browserify),
+or just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest),
+if you don't want to build it yourself.
+
+Debug's enable state is currently persisted by `localStorage`.
+Consider the situation shown below where you have `worker:a` and `worker:b`,
+and wish to debug both. You can enable this using `localStorage.debug`:
+
+```js
+localStorage.debug = 'worker:*'
+```
+
+And then refresh the page.
+
+```js
+a = debug('worker:a');
+b = debug('worker:b');
+
+setInterval(function(){
+  a('doing some work');
+}, 1000);
+
+setInterval(function(){
+  b('doing some work');
+}, 1200);
+```
+
+
+## Output streams
+
+  By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method:
+
+Example [_stdout.js_](./examples/node/stdout.js):
+
+```js
+var debug = require('debug');
+var error = debug('app:error');
+
+// by default stderr is used
+error('goes to stderr!');
+
+var log = debug('app:log');
+// set this namespace to log via console.log
+log.log = console.log.bind(console); // don't forget to bind to console!
+log('goes to stdout');
+error('still goes to stderr!');
+
+// set all output to go via console.info
+// overrides all per-namespace log settings
+debug.log = console.info.bind(console);
+error('now goes to stdout via console.info');
+log('still goes to stdout, but via console.info now');
+```
+
+## Extend
+You can simply extend debugger 
+```js
+const log = require('debug')('auth');
+
+//creates new debug instance with extended namespace
+const logSign = log.extend('sign');
+const logLogin = log.extend('login');
+
+log('hello'); // auth hello
+logSign('hello'); //auth:sign hello
+logLogin('hello'); //auth:login hello
+```
+
+## Set dynamically
+
+You can also enable debug dynamically by calling the `enable()` method :
+
+```js
+let debug = require('debug');
+
+console.log(1, debug.enabled('test'));
+
+debug.enable('test');
+console.log(2, debug.enabled('test'));
+
+debug.disable();
+console.log(3, debug.enabled('test'));
+
+```
+
+print :   
+```
+1 false
+2 true
+3 false
+```
+
+Usage :  
+`enable(namespaces)`  
+`namespaces` can include modes separated by a colon and wildcards.
+   
+Note that calling `enable()` completely overrides previously set DEBUG variable : 
+
+```
+$ DEBUG=foo node -e 'var dbg = require("debug"); dbg.enable("bar"); console.log(dbg.enabled("foo"))'
+=> false
+```
+
+`disable()`
+
+Will disable all namespaces. The functions returns the namespaces currently
+enabled (and skipped). This can be useful if you want to disable debugging
+temporarily without knowing what was enabled to begin with.
+
+For example:
+
+```js
+let debug = require('debug');
+debug.enable('foo:*,-foo:bar');
+let namespaces = debug.disable();
+debug.enable(namespaces);
+```
+
+Note: There is no guarantee that the string will be identical to the initial
+enable string, but semantically they will be identical.
+
+## Checking whether a debug target is enabled
+
+After you've created a debug instance, you can determine whether or not it is
+enabled by checking the `enabled` property:
+
+```javascript
+const debug = require('debug')('http');
+
+if (debug.enabled) {
+  // do stuff...
+}
+```
+
+You can also manually toggle this property to force the debug instance to be
+enabled or disabled.
+
+
+## Authors
+
+ - TJ Holowaychuk
+ - Nathan Rajlich
+ - Andrew Rhyne
+
+## Backers
+
+Support us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/debug#backer)]
+
+<a href="https://opencollective.com/debug/backer/0/website" target="_blank"><img src="https://opencollective.com/debug/backer/0/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/1/website" target="_blank"><img src="https://opencollective.com/debug/backer/1/avatar.svg"></a>
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+<a href="https://opencollective.com/debug/backer/29/website" target="_blank"><img src="https://opencollective.com/debug/backer/29/avatar.svg"></a>
+
+
+## Sponsors
+
+Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/debug#sponsor)]
+
+<a href="https://opencollective.com/debug/sponsor/0/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/1/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/1/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/2/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/2/avatar.svg"></a>
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+<a href="https://opencollective.com/debug/sponsor/21/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/21/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/22/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/22/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/23/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/23/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/24/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/24/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/25/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/25/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/26/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/26/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/27/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/27/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/28/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/28/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/29/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/29/avatar.svg"></a>
+
+## License
+
+(The MIT License)
+
+Copyright (c) 2014-2017 TJ Holowaychuk &lt;tj@vision-media.ca&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/debug/dist/debug.js b/helloworld/node_modules/debug/dist/debug.js
new file mode 100755
index 0000000..89ad0c2
--- /dev/null
+++ b/helloworld/node_modules/debug/dist/debug.js
@@ -0,0 +1,912 @@
+"use strict";
+
+function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }
+
+function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }
+
+function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }
+
+function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }
+
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+(function (f) {
+  if ((typeof exports === "undefined" ? "undefined" : _typeof(exports)) === "object" && typeof module !== "undefined") {
+    module.exports = f();
+  } else if (typeof define === "function" && define.amd) {
+    define([], f);
+  } else {
+    var g;
+
+    if (typeof window !== "undefined") {
+      g = window;
+    } else if (typeof global !== "undefined") {
+      g = global;
+    } else if (typeof self !== "undefined") {
+      g = self;
+    } else {
+      g = this;
+    }
+
+    g.debug = f();
+  }
+})(function () {
+  var define, module, exports;
+  return function () {
+    function r(e, n, t) {
+      function o(i, f) {
+        if (!n[i]) {
+          if (!e[i]) {
+            var c = "function" == typeof require && require;
+            if (!f && c) return c(i, !0);
+            if (u) return u(i, !0);
+            var a = new Error("Cannot find module '" + i + "'");
+            throw a.code = "MODULE_NOT_FOUND", a;
+          }
+
+          var p = n[i] = {
+            exports: {}
+          };
+          e[i][0].call(p.exports, function (r) {
+            var n = e[i][1][r];
+            return o(n || r);
+          }, p, p.exports, r, e, n, t);
+        }
+
+        return n[i].exports;
+      }
+
+      for (var u = "function" == typeof require && require, i = 0; i < t.length; i++) {
+        o(t[i]);
+      }
+
+      return o;
+    }
+
+    return r;
+  }()({
+    1: [function (require, module, exports) {
+      /**
+       * Helpers.
+       */
+      var s = 1000;
+      var m = s * 60;
+      var h = m * 60;
+      var d = h * 24;
+      var w = d * 7;
+      var y = d * 365.25;
+      /**
+       * Parse or format the given `val`.
+       *
+       * Options:
+       *
+       *  - `long` verbose formatting [false]
+       *
+       * @param {String|Number} val
+       * @param {Object} [options]
+       * @throws {Error} throw an error if val is not a non-empty string or a number
+       * @return {String|Number}
+       * @api public
+       */
+
+      module.exports = function (val, options) {
+        options = options || {};
+
+        var type = _typeof(val);
+
+        if (type === 'string' && val.length > 0) {
+          return parse(val);
+        } else if (type === 'number' && isNaN(val) === false) {
+          return options.long ? fmtLong(val) : fmtShort(val);
+        }
+
+        throw new Error('val is not a non-empty string or a valid number. val=' + JSON.stringify(val));
+      };
+      /**
+       * Parse the given `str` and return milliseconds.
+       *
+       * @param {String} str
+       * @return {Number}
+       * @api private
+       */
+
+
+      function parse(str) {
+        str = String(str);
+
+        if (str.length > 100) {
+          return;
+        }
+
+        var match = /^((?:\d+)?\-?\d?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(str);
+
+        if (!match) {
+          return;
+        }
+
+        var n = parseFloat(match[1]);
+        var type = (match[2] || 'ms').toLowerCase();
+
+        switch (type) {
+          case 'years':
+          case 'year':
+          case 'yrs':
+          case 'yr':
+          case 'y':
+            return n * y;
+
+          case 'weeks':
+          case 'week':
+          case 'w':
+            return n * w;
+
+          case 'days':
+          case 'day':
+          case 'd':
+            return n * d;
+
+          case 'hours':
+          case 'hour':
+          case 'hrs':
+          case 'hr':
+          case 'h':
+            return n * h;
+
+          case 'minutes':
+          case 'minute':
+          case 'mins':
+          case 'min':
+          case 'm':
+            return n * m;
+
+          case 'seconds':
+          case 'second':
+          case 'secs':
+          case 'sec':
+          case 's':
+            return n * s;
+
+          case 'milliseconds':
+          case 'millisecond':
+          case 'msecs':
+          case 'msec':
+          case 'ms':
+            return n;
+
+          default:
+            return undefined;
+        }
+      }
+      /**
+       * Short format for `ms`.
+       *
+       * @param {Number} ms
+       * @return {String}
+       * @api private
+       */
+
+
+      function fmtShort(ms) {
+        var msAbs = Math.abs(ms);
+
+        if (msAbs >= d) {
+          return Math.round(ms / d) + 'd';
+        }
+
+        if (msAbs >= h) {
+          return Math.round(ms / h) + 'h';
+        }
+
+        if (msAbs >= m) {
+          return Math.round(ms / m) + 'm';
+        }
+
+        if (msAbs >= s) {
+          return Math.round(ms / s) + 's';
+        }
+
+        return ms + 'ms';
+      }
+      /**
+       * Long format for `ms`.
+       *
+       * @param {Number} ms
+       * @return {String}
+       * @api private
+       */
+
+
+      function fmtLong(ms) {
+        var msAbs = Math.abs(ms);
+
+        if (msAbs >= d) {
+          return plural(ms, msAbs, d, 'day');
+        }
+
+        if (msAbs >= h) {
+          return plural(ms, msAbs, h, 'hour');
+        }
+
+        if (msAbs >= m) {
+          return plural(ms, msAbs, m, 'minute');
+        }
+
+        if (msAbs >= s) {
+          return plural(ms, msAbs, s, 'second');
+        }
+
+        return ms + ' ms';
+      }
+      /**
+       * Pluralization helper.
+       */
+
+
+      function plural(ms, msAbs, n, name) {
+        var isPlural = msAbs >= n * 1.5;
+        return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
+      }
+    }, {}],
+    2: [function (require, module, exports) {
+      // shim for using process in browser
+      var process = module.exports = {}; // cached from whatever global is present so that test runners that stub it
+      // don't break things.  But we need to wrap it in a try catch in case it is
+      // wrapped in strict mode code which doesn't define any globals.  It's inside a
+      // function because try/catches deoptimize in certain engines.
+
+      var cachedSetTimeout;
+      var cachedClearTimeout;
+
+      function defaultSetTimout() {
+        throw new Error('setTimeout has not been defined');
+      }
+
+      function defaultClearTimeout() {
+        throw new Error('clearTimeout has not been defined');
+      }
+
+      (function () {
+        try {
+          if (typeof setTimeout === 'function') {
+            cachedSetTimeout = setTimeout;
+          } else {
+            cachedSetTimeout = defaultSetTimout;
+          }
+        } catch (e) {
+          cachedSetTimeout = defaultSetTimout;
+        }
+
+        try {
+          if (typeof clearTimeout === 'function') {
+            cachedClearTimeout = clearTimeout;
+          } else {
+            cachedClearTimeout = defaultClearTimeout;
+          }
+        } catch (e) {
+          cachedClearTimeout = defaultClearTimeout;
+        }
+      })();
+
+      function runTimeout(fun) {
+        if (cachedSetTimeout === setTimeout) {
+          //normal enviroments in sane situations
+          return setTimeout(fun, 0);
+        } // if setTimeout wasn't available but was latter defined
+
+
+        if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
+          cachedSetTimeout = setTimeout;
+          return setTimeout(fun, 0);
+        }
+
+        try {
+          // when when somebody has screwed with setTimeout but no I.E. maddness
+          return cachedSetTimeout(fun, 0);
+        } catch (e) {
+          try {
+            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
+            return cachedSetTimeout.call(null, fun, 0);
+          } catch (e) {
+            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
+            return cachedSetTimeout.call(this, fun, 0);
+          }
+        }
+      }
+
+      function runClearTimeout(marker) {
+        if (cachedClearTimeout === clearTimeout) {
+          //normal enviroments in sane situations
+          return clearTimeout(marker);
+        } // if clearTimeout wasn't available but was latter defined
+
+
+        if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
+          cachedClearTimeout = clearTimeout;
+          return clearTimeout(marker);
+        }
+
+        try {
+          // when when somebody has screwed with setTimeout but no I.E. maddness
+          return cachedClearTimeout(marker);
+        } catch (e) {
+          try {
+            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
+            return cachedClearTimeout.call(null, marker);
+          } catch (e) {
+            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
+            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
+            return cachedClearTimeout.call(this, marker);
+          }
+        }
+      }
+
+      var queue = [];
+      var draining = false;
+      var currentQueue;
+      var queueIndex = -1;
+
+      function cleanUpNextTick() {
+        if (!draining || !currentQueue) {
+          return;
+        }
+
+        draining = false;
+
+        if (currentQueue.length) {
+          queue = currentQueue.concat(queue);
+        } else {
+          queueIndex = -1;
+        }
+
+        if (queue.length) {
+          drainQueue();
+        }
+      }
+
+      function drainQueue() {
+        if (draining) {
+          return;
+        }
+
+        var timeout = runTimeout(cleanUpNextTick);
+        draining = true;
+        var len = queue.length;
+
+        while (len) {
+          currentQueue = queue;
+          queue = [];
+
+          while (++queueIndex < len) {
+            if (currentQueue) {
+              currentQueue[queueIndex].run();
+            }
+          }
+
+          queueIndex = -1;
+          len = queue.length;
+        }
+
+        currentQueue = null;
+        draining = false;
+        runClearTimeout(timeout);
+      }
+
+      process.nextTick = function (fun) {
+        var args = new Array(arguments.length - 1);
+
+        if (arguments.length > 1) {
+          for (var i = 1; i < arguments.length; i++) {
+            args[i - 1] = arguments[i];
+          }
+        }
+
+        queue.push(new Item(fun, args));
+
+        if (queue.length === 1 && !draining) {
+          runTimeout(drainQueue);
+        }
+      }; // v8 likes predictible objects
+
+
+      function Item(fun, array) {
+        this.fun = fun;
+        this.array = array;
+      }
+
+      Item.prototype.run = function () {
+        this.fun.apply(null, this.array);
+      };
+
+      process.title = 'browser';
+      process.browser = true;
+      process.env = {};
+      process.argv = [];
+      process.version = ''; // empty string to avoid regexp issues
+
+      process.versions = {};
+
+      function noop() {}
+
+      process.on = noop;
+      process.addListener = noop;
+      process.once = noop;
+      process.off = noop;
+      process.removeListener = noop;
+      process.removeAllListeners = noop;
+      process.emit = noop;
+      process.prependListener = noop;
+      process.prependOnceListener = noop;
+
+      process.listeners = function (name) {
+        return [];
+      };
+
+      process.binding = function (name) {
+        throw new Error('process.binding is not supported');
+      };
+
+      process.cwd = function () {
+        return '/';
+      };
+
+      process.chdir = function (dir) {
+        throw new Error('process.chdir is not supported');
+      };
+
+      process.umask = function () {
+        return 0;
+      };
+    }, {}],
+    3: [function (require, module, exports) {
+      /**
+       * This is the common logic for both the Node.js and web browser
+       * implementations of `debug()`.
+       */
+      function setup(env) {
+        createDebug.debug = createDebug;
+        createDebug.default = createDebug;
+        createDebug.coerce = coerce;
+        createDebug.disable = disable;
+        createDebug.enable = enable;
+        createDebug.enabled = enabled;
+        createDebug.humanize = require('ms');
+        Object.keys(env).forEach(function (key) {
+          createDebug[key] = env[key];
+        });
+        /**
+        * Active `debug` instances.
+        */
+
+        createDebug.instances = [];
+        /**
+        * The currently active debug mode names, and names to skip.
+        */
+
+        createDebug.names = [];
+        createDebug.skips = [];
+        /**
+        * Map of special "%n" handling functions, for the debug "format" argument.
+        *
+        * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
+        */
+
+        createDebug.formatters = {};
+        /**
+        * Selects a color for a debug namespace
+        * @param {String} namespace The namespace string for the for the debug instance to be colored
+        * @return {Number|String} An ANSI color code for the given namespace
+        * @api private
+        */
+
+        function selectColor(namespace) {
+          var hash = 0;
+
+          for (var i = 0; i < namespace.length; i++) {
+            hash = (hash << 5) - hash + namespace.charCodeAt(i);
+            hash |= 0; // Convert to 32bit integer
+          }
+
+          return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
+        }
+
+        createDebug.selectColor = selectColor;
+        /**
+        * Create a debugger with the given `namespace`.
+        *
+        * @param {String} namespace
+        * @return {Function}
+        * @api public
+        */
+
+        function createDebug(namespace) {
+          var prevTime;
+
+          function debug() {
+            for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+              args[_key] = arguments[_key];
+            }
+
+            // Disabled?
+            if (!debug.enabled) {
+              return;
+            }
+
+            var self = debug; // Set `diff` timestamp
+
+            var curr = Number(new Date());
+            var ms = curr - (prevTime || curr);
+            self.diff = ms;
+            self.prev = prevTime;
+            self.curr = curr;
+            prevTime = curr;
+            args[0] = createDebug.coerce(args[0]);
+
+            if (typeof args[0] !== 'string') {
+              // Anything else let's inspect with %O
+              args.unshift('%O');
+            } // Apply any `formatters` transformations
+
+
+            var index = 0;
+            args[0] = args[0].replace(/%([a-zA-Z%])/g, function (match, format) {
+              // If we encounter an escaped % then don't increase the array index
+              if (match === '%%') {
+                return match;
+              }
+
+              index++;
+              var formatter = createDebug.formatters[format];
+
+              if (typeof formatter === 'function') {
+                var val = args[index];
+                match = formatter.call(self, val); // Now we need to remove `args[index]` since it's inlined in the `format`
+
+                args.splice(index, 1);
+                index--;
+              }
+
+              return match;
+            }); // Apply env-specific formatting (colors, etc.)
+
+            createDebug.formatArgs.call(self, args);
+            var logFn = self.log || createDebug.log;
+            logFn.apply(self, args);
+          }
+
+          debug.namespace = namespace;
+          debug.enabled = createDebug.enabled(namespace);
+          debug.useColors = createDebug.useColors();
+          debug.color = selectColor(namespace);
+          debug.destroy = destroy;
+          debug.extend = extend; // Debug.formatArgs = formatArgs;
+          // debug.rawLog = rawLog;
+          // env-specific initialization logic for debug instances
+
+          if (typeof createDebug.init === 'function') {
+            createDebug.init(debug);
+          }
+
+          createDebug.instances.push(debug);
+          return debug;
+        }
+
+        function destroy() {
+          var index = createDebug.instances.indexOf(this);
+
+          if (index !== -1) {
+            createDebug.instances.splice(index, 1);
+            return true;
+          }
+
+          return false;
+        }
+
+        function extend(namespace, delimiter) {
+          var newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
+          newDebug.log = this.log;
+          return newDebug;
+        }
+        /**
+        * Enables a debug mode by namespaces. This can include modes
+        * separated by a colon and wildcards.
+        *
+        * @param {String} namespaces
+        * @api public
+        */
+
+
+        function enable(namespaces) {
+          createDebug.save(namespaces);
+          createDebug.names = [];
+          createDebug.skips = [];
+          var i;
+          var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
+          var len = split.length;
+
+          for (i = 0; i < len; i++) {
+            if (!split[i]) {
+              // ignore empty strings
+              continue;
+            }
+
+            namespaces = split[i].replace(/\*/g, '.*?');
+
+            if (namespaces[0] === '-') {
+              createDebug.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
+            } else {
+              createDebug.names.push(new RegExp('^' + namespaces + '$'));
+            }
+          }
+
+          for (i = 0; i < createDebug.instances.length; i++) {
+            var instance = createDebug.instances[i];
+            instance.enabled = createDebug.enabled(instance.namespace);
+          }
+        }
+        /**
+        * Disable debug output.
+        *
+        * @return {String} namespaces
+        * @api public
+        */
+
+
+        function disable() {
+          var namespaces = [].concat(_toConsumableArray(createDebug.names.map(toNamespace)), _toConsumableArray(createDebug.skips.map(toNamespace).map(function (namespace) {
+            return '-' + namespace;
+          }))).join(',');
+          createDebug.enable('');
+          return namespaces;
+        }
+        /**
+        * Returns true if the given mode name is enabled, false otherwise.
+        *
+        * @param {String} name
+        * @return {Boolean}
+        * @api public
+        */
+
+
+        function enabled(name) {
+          if (name[name.length - 1] === '*') {
+            return true;
+          }
+
+          var i;
+          var len;
+
+          for (i = 0, len = createDebug.skips.length; i < len; i++) {
+            if (createDebug.skips[i].test(name)) {
+              return false;
+            }
+          }
+
+          for (i = 0, len = createDebug.names.length; i < len; i++) {
+            if (createDebug.names[i].test(name)) {
+              return true;
+            }
+          }
+
+          return false;
+        }
+        /**
+        * Convert regexp to namespace
+        *
+        * @param {RegExp} regxep
+        * @return {String} namespace
+        * @api private
+        */
+
+
+        function toNamespace(regexp) {
+          return regexp.toString().substring(2, regexp.toString().length - 2).replace(/\.\*\?$/, '*');
+        }
+        /**
+        * Coerce `val`.
+        *
+        * @param {Mixed} val
+        * @return {Mixed}
+        * @api private
+        */
+
+
+        function coerce(val) {
+          if (val instanceof Error) {
+            return val.stack || val.message;
+          }
+
+          return val;
+        }
+
+        createDebug.enable(createDebug.load());
+        return createDebug;
+      }
+
+      module.exports = setup;
+    }, {
+      "ms": 1
+    }],
+    4: [function (require, module, exports) {
+      (function (process) {
+        /* eslint-env browser */
+
+        /**
+         * This is the web browser implementation of `debug()`.
+         */
+        exports.log = log;
+        exports.formatArgs = formatArgs;
+        exports.save = save;
+        exports.load = load;
+        exports.useColors = useColors;
+        exports.storage = localstorage();
+        /**
+         * Colors.
+         */
+
+        exports.colors = ['#0000CC', '#0000FF', '#0033CC', '#0033FF', '#0066CC', '#0066FF', '#0099CC', '#0099FF', '#00CC00', '#00CC33', '#00CC66', '#00CC99', '#00CCCC', '#00CCFF', '#3300CC', '#3300FF', '#3333CC', '#3333FF', '#3366CC', '#3366FF', '#3399CC', '#3399FF', '#33CC00', '#33CC33', '#33CC66', '#33CC99', '#33CCCC', '#33CCFF', '#6600CC', '#6600FF', '#6633CC', '#6633FF', '#66CC00', '#66CC33', '#9900CC', '#9900FF', '#9933CC', '#9933FF', '#99CC00', '#99CC33', '#CC0000', '#CC0033', '#CC0066', '#CC0099', '#CC00CC', '#CC00FF', '#CC3300', '#CC3333', '#CC3366', '#CC3399', '#CC33CC', '#CC33FF', '#CC6600', '#CC6633', '#CC9900', '#CC9933', '#CCCC00', '#CCCC33', '#FF0000', '#FF0033', '#FF0066', '#FF0099', '#FF00CC', '#FF00FF', '#FF3300', '#FF3333', '#FF3366', '#FF3399', '#FF33CC', '#FF33FF', '#FF6600', '#FF6633', '#FF9900', '#FF9933', '#FFCC00', '#FFCC33'];
+        /**
+         * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+         * and the Firebug extension (any Firefox version) are known
+         * to support "%c" CSS customizations.
+         *
+         * TODO: add a `localStorage` variable to explicitly enable/disable colors
+         */
+        // eslint-disable-next-line complexity
+
+        function useColors() {
+          // NB: In an Electron preload script, document will be defined but not fully
+          // initialized. Since we know we're in Chrome, we'll just detect this case
+          // explicitly
+          if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
+            return true;
+          } // Internet Explorer and Edge do not support colors.
+
+
+          if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
+            return false;
+          } // Is webkit? http://stackoverflow.com/a/16459606/376773
+          // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+
+
+          return typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance || // Is firebug? http://stackoverflow.com/a/398120/376773
+          typeof window !== 'undefined' && window.console && (window.console.firebug || window.console.exception && window.console.table) || // Is firefox >= v31?
+          // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+          typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31 || // Double check webkit in userAgent just in case we are in a worker
+          typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/);
+        }
+        /**
+         * Colorize log arguments if enabled.
+         *
+         * @api public
+         */
+
+
+        function formatArgs(args) {
+          args[0] = (this.useColors ? '%c' : '') + this.namespace + (this.useColors ? ' %c' : ' ') + args[0] + (this.useColors ? '%c ' : ' ') + '+' + module.exports.humanize(this.diff);
+
+          if (!this.useColors) {
+            return;
+          }
+
+          var c = 'color: ' + this.color;
+          args.splice(1, 0, c, 'color: inherit'); // The final "%c" is somewhat tricky, because there could be other
+          // arguments passed either before or after the %c, so we need to
+          // figure out the correct index to insert the CSS into
+
+          var index = 0;
+          var lastC = 0;
+          args[0].replace(/%[a-zA-Z%]/g, function (match) {
+            if (match === '%%') {
+              return;
+            }
+
+            index++;
+
+            if (match === '%c') {
+              // We only are interested in the *last* %c
+              // (the user may have provided their own)
+              lastC = index;
+            }
+          });
+          args.splice(lastC, 0, c);
+        }
+        /**
+         * Invokes `console.log()` when available.
+         * No-op when `console.log` is not a "function".
+         *
+         * @api public
+         */
+
+
+        function log() {
+          var _console;
+
+          // This hackery is required for IE8/9, where
+          // the `console.log` function doesn't have 'apply'
+          return (typeof console === "undefined" ? "undefined" : _typeof(console)) === 'object' && console.log && (_console = console).log.apply(_console, arguments);
+        }
+        /**
+         * Save `namespaces`.
+         *
+         * @param {String} namespaces
+         * @api private
+         */
+
+
+        function save(namespaces) {
+          try {
+            if (namespaces) {
+              exports.storage.setItem('debug', namespaces);
+            } else {
+              exports.storage.removeItem('debug');
+            }
+          } catch (error) {// Swallow
+            // XXX (@Qix-) should we be logging these?
+          }
+        }
+        /**
+         * Load `namespaces`.
+         *
+         * @return {String} returns the previously persisted debug modes
+         * @api private
+         */
+
+
+        function load() {
+          var r;
+
+          try {
+            r = exports.storage.getItem('debug');
+          } catch (error) {} // Swallow
+          // XXX (@Qix-) should we be logging these?
+          // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
+
+
+          if (!r && typeof process !== 'undefined' && 'env' in process) {
+            r = process.env.DEBUG;
+          }
+
+          return r;
+        }
+        /**
+         * Localstorage attempts to return the localstorage.
+         *
+         * This is necessary because safari throws
+         * when a user disables cookies/localstorage
+         * and you attempt to access it.
+         *
+         * @return {LocalStorage}
+         * @api private
+         */
+
+
+        function localstorage() {
+          try {
+            // TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
+            // The Browser also has localStorage in the global context.
+            return localStorage;
+          } catch (error) {// Swallow
+            // XXX (@Qix-) should we be logging these?
+          }
+        }
+
+        module.exports = require('./common')(exports);
+        var formatters = module.exports.formatters;
+        /**
+         * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+         */
+
+        formatters.j = function (v) {
+          try {
+            return JSON.stringify(v);
+          } catch (error) {
+            return '[UnexpectedJSONParseError]: ' + error.message;
+          }
+        };
+      }).call(this, require('_process'));
+    }, {
+      "./common": 3,
+      "_process": 2
+    }]
+  }, {}, [4])(4);
+});
diff --git a/helloworld/node_modules/debug/src/browser.js b/helloworld/node_modules/debug/src/browser.js
new file mode 100755
index 0000000..5f34c0d
--- /dev/null
+++ b/helloworld/node_modules/debug/src/browser.js
@@ -0,0 +1,264 @@
+/* eslint-env browser */
+
+/**
+ * This is the web browser implementation of `debug()`.
+ */
+
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+exports.storage = localstorage();
+
+/**
+ * Colors.
+ */
+
+exports.colors = [
+	'#0000CC',
+	'#0000FF',
+	'#0033CC',
+	'#0033FF',
+	'#0066CC',
+	'#0066FF',
+	'#0099CC',
+	'#0099FF',
+	'#00CC00',
+	'#00CC33',
+	'#00CC66',
+	'#00CC99',
+	'#00CCCC',
+	'#00CCFF',
+	'#3300CC',
+	'#3300FF',
+	'#3333CC',
+	'#3333FF',
+	'#3366CC',
+	'#3366FF',
+	'#3399CC',
+	'#3399FF',
+	'#33CC00',
+	'#33CC33',
+	'#33CC66',
+	'#33CC99',
+	'#33CCCC',
+	'#33CCFF',
+	'#6600CC',
+	'#6600FF',
+	'#6633CC',
+	'#6633FF',
+	'#66CC00',
+	'#66CC33',
+	'#9900CC',
+	'#9900FF',
+	'#9933CC',
+	'#9933FF',
+	'#99CC00',
+	'#99CC33',
+	'#CC0000',
+	'#CC0033',
+	'#CC0066',
+	'#CC0099',
+	'#CC00CC',
+	'#CC00FF',
+	'#CC3300',
+	'#CC3333',
+	'#CC3366',
+	'#CC3399',
+	'#CC33CC',
+	'#CC33FF',
+	'#CC6600',
+	'#CC6633',
+	'#CC9900',
+	'#CC9933',
+	'#CCCC00',
+	'#CCCC33',
+	'#FF0000',
+	'#FF0033',
+	'#FF0066',
+	'#FF0099',
+	'#FF00CC',
+	'#FF00FF',
+	'#FF3300',
+	'#FF3333',
+	'#FF3366',
+	'#FF3399',
+	'#FF33CC',
+	'#FF33FF',
+	'#FF6600',
+	'#FF6633',
+	'#FF9900',
+	'#FF9933',
+	'#FFCC00',
+	'#FFCC33'
+];
+
+/**
+ * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+ * and the Firebug extension (any Firefox version) are known
+ * to support "%c" CSS customizations.
+ *
+ * TODO: add a `localStorage` variable to explicitly enable/disable colors
+ */
+
+// eslint-disable-next-line complexity
+function useColors() {
+	// NB: In an Electron preload script, document will be defined but not fully
+	// initialized. Since we know we're in Chrome, we'll just detect this case
+	// explicitly
+	if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
+		return true;
+	}
+
+	// Internet Explorer and Edge do not support colors.
+	if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
+		return false;
+	}
+
+	// Is webkit? http://stackoverflow.com/a/16459606/376773
+	// document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+	return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
+		// Is firebug? http://stackoverflow.com/a/398120/376773
+		(typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
+		// Is firefox >= v31?
+		// https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+		(typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
+		// Double check webkit in userAgent just in case we are in a worker
+		(typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
+}
+
+/**
+ * Colorize log arguments if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+	args[0] = (this.useColors ? '%c' : '') +
+		this.namespace +
+		(this.useColors ? ' %c' : ' ') +
+		args[0] +
+		(this.useColors ? '%c ' : ' ') +
+		'+' + module.exports.humanize(this.diff);
+
+	if (!this.useColors) {
+		return;
+	}
+
+	const c = 'color: ' + this.color;
+	args.splice(1, 0, c, 'color: inherit');
+
+	// The final "%c" is somewhat tricky, because there could be other
+	// arguments passed either before or after the %c, so we need to
+	// figure out the correct index to insert the CSS into
+	let index = 0;
+	let lastC = 0;
+	args[0].replace(/%[a-zA-Z%]/g, match => {
+		if (match === '%%') {
+			return;
+		}
+		index++;
+		if (match === '%c') {
+			// We only are interested in the *last* %c
+			// (the user may have provided their own)
+			lastC = index;
+		}
+	});
+
+	args.splice(lastC, 0, c);
+}
+
+/**
+ * Invokes `console.log()` when available.
+ * No-op when `console.log` is not a "function".
+ *
+ * @api public
+ */
+function log(...args) {
+	// This hackery is required for IE8/9, where
+	// the `console.log` function doesn't have 'apply'
+	return typeof console === 'object' &&
+		console.log &&
+		console.log(...args);
+}
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+function save(namespaces) {
+	try {
+		if (namespaces) {
+			exports.storage.setItem('debug', namespaces);
+		} else {
+			exports.storage.removeItem('debug');
+		}
+	} catch (error) {
+		// Swallow
+		// XXX (@Qix-) should we be logging these?
+	}
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+function load() {
+	let r;
+	try {
+		r = exports.storage.getItem('debug');
+	} catch (error) {
+		// Swallow
+		// XXX (@Qix-) should we be logging these?
+	}
+
+	// If debug isn't set in LS, and we're in Electron, try to load $DEBUG
+	if (!r && typeof process !== 'undefined' && 'env' in process) {
+		r = process.env.DEBUG;
+	}
+
+	return r;
+}
+
+/**
+ * Localstorage attempts to return the localstorage.
+ *
+ * This is necessary because safari throws
+ * when a user disables cookies/localstorage
+ * and you attempt to access it.
+ *
+ * @return {LocalStorage}
+ * @api private
+ */
+
+function localstorage() {
+	try {
+		// TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
+		// The Browser also has localStorage in the global context.
+		return localStorage;
+	} catch (error) {
+		// Swallow
+		// XXX (@Qix-) should we be logging these?
+	}
+}
+
+module.exports = require('./common')(exports);
+
+const {formatters} = module.exports;
+
+/**
+ * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+ */
+
+formatters.j = function (v) {
+	try {
+		return JSON.stringify(v);
+	} catch (error) {
+		return '[UnexpectedJSONParseError]: ' + error.message;
+	}
+};
diff --git a/helloworld/node_modules/debug/src/common.js b/helloworld/node_modules/debug/src/common.js
new file mode 100755
index 0000000..2f82b8d
--- /dev/null
+++ b/helloworld/node_modules/debug/src/common.js
@@ -0,0 +1,266 @@
+
+/**
+ * This is the common logic for both the Node.js and web browser
+ * implementations of `debug()`.
+ */
+
+function setup(env) {
+	createDebug.debug = createDebug;
+	createDebug.default = createDebug;
+	createDebug.coerce = coerce;
+	createDebug.disable = disable;
+	createDebug.enable = enable;
+	createDebug.enabled = enabled;
+	createDebug.humanize = require('ms');
+
+	Object.keys(env).forEach(key => {
+		createDebug[key] = env[key];
+	});
+
+	/**
+	* Active `debug` instances.
+	*/
+	createDebug.instances = [];
+
+	/**
+	* The currently active debug mode names, and names to skip.
+	*/
+
+	createDebug.names = [];
+	createDebug.skips = [];
+
+	/**
+	* Map of special "%n" handling functions, for the debug "format" argument.
+	*
+	* Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
+	*/
+	createDebug.formatters = {};
+
+	/**
+	* Selects a color for a debug namespace
+	* @param {String} namespace The namespace string for the for the debug instance to be colored
+	* @return {Number|String} An ANSI color code for the given namespace
+	* @api private
+	*/
+	function selectColor(namespace) {
+		let hash = 0;
+
+		for (let i = 0; i < namespace.length; i++) {
+			hash = ((hash << 5) - hash) + namespace.charCodeAt(i);
+			hash |= 0; // Convert to 32bit integer
+		}
+
+		return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
+	}
+	createDebug.selectColor = selectColor;
+
+	/**
+	* Create a debugger with the given `namespace`.
+	*
+	* @param {String} namespace
+	* @return {Function}
+	* @api public
+	*/
+	function createDebug(namespace) {
+		let prevTime;
+
+		function debug(...args) {
+			// Disabled?
+			if (!debug.enabled) {
+				return;
+			}
+
+			const self = debug;
+
+			// Set `diff` timestamp
+			const curr = Number(new Date());
+			const ms = curr - (prevTime || curr);
+			self.diff = ms;
+			self.prev = prevTime;
+			self.curr = curr;
+			prevTime = curr;
+
+			args[0] = createDebug.coerce(args[0]);
+
+			if (typeof args[0] !== 'string') {
+				// Anything else let's inspect with %O
+				args.unshift('%O');
+			}
+
+			// Apply any `formatters` transformations
+			let index = 0;
+			args[0] = args[0].replace(/%([a-zA-Z%])/g, (match, format) => {
+				// If we encounter an escaped % then don't increase the array index
+				if (match === '%%') {
+					return match;
+				}
+				index++;
+				const formatter = createDebug.formatters[format];
+				if (typeof formatter === 'function') {
+					const val = args[index];
+					match = formatter.call(self, val);
+
+					// Now we need to remove `args[index]` since it's inlined in the `format`
+					args.splice(index, 1);
+					index--;
+				}
+				return match;
+			});
+
+			// Apply env-specific formatting (colors, etc.)
+			createDebug.formatArgs.call(self, args);
+
+			const logFn = self.log || createDebug.log;
+			logFn.apply(self, args);
+		}
+
+		debug.namespace = namespace;
+		debug.enabled = createDebug.enabled(namespace);
+		debug.useColors = createDebug.useColors();
+		debug.color = selectColor(namespace);
+		debug.destroy = destroy;
+		debug.extend = extend;
+		// Debug.formatArgs = formatArgs;
+		// debug.rawLog = rawLog;
+
+		// env-specific initialization logic for debug instances
+		if (typeof createDebug.init === 'function') {
+			createDebug.init(debug);
+		}
+
+		createDebug.instances.push(debug);
+
+		return debug;
+	}
+
+	function destroy() {
+		const index = createDebug.instances.indexOf(this);
+		if (index !== -1) {
+			createDebug.instances.splice(index, 1);
+			return true;
+		}
+		return false;
+	}
+
+	function extend(namespace, delimiter) {
+		const newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
+		newDebug.log = this.log;
+		return newDebug;
+	}
+
+	/**
+	* Enables a debug mode by namespaces. This can include modes
+	* separated by a colon and wildcards.
+	*
+	* @param {String} namespaces
+	* @api public
+	*/
+	function enable(namespaces) {
+		createDebug.save(namespaces);
+
+		createDebug.names = [];
+		createDebug.skips = [];
+
+		let i;
+		const split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
+		const len = split.length;
+
+		for (i = 0; i < len; i++) {
+			if (!split[i]) {
+				// ignore empty strings
+				continue;
+			}
+
+			namespaces = split[i].replace(/\*/g, '.*?');
+
+			if (namespaces[0] === '-') {
+				createDebug.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
+			} else {
+				createDebug.names.push(new RegExp('^' + namespaces + '$'));
+			}
+		}
+
+		for (i = 0; i < createDebug.instances.length; i++) {
+			const instance = createDebug.instances[i];
+			instance.enabled = createDebug.enabled(instance.namespace);
+		}
+	}
+
+	/**
+	* Disable debug output.
+	*
+	* @return {String} namespaces
+	* @api public
+	*/
+	function disable() {
+		const namespaces = [
+			...createDebug.names.map(toNamespace),
+			...createDebug.skips.map(toNamespace).map(namespace => '-' + namespace)
+		].join(',');
+		createDebug.enable('');
+		return namespaces;
+	}
+
+	/**
+	* Returns true if the given mode name is enabled, false otherwise.
+	*
+	* @param {String} name
+	* @return {Boolean}
+	* @api public
+	*/
+	function enabled(name) {
+		if (name[name.length - 1] === '*') {
+			return true;
+		}
+
+		let i;
+		let len;
+
+		for (i = 0, len = createDebug.skips.length; i < len; i++) {
+			if (createDebug.skips[i].test(name)) {
+				return false;
+			}
+		}
+
+		for (i = 0, len = createDebug.names.length; i < len; i++) {
+			if (createDebug.names[i].test(name)) {
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	/**
+	* Convert regexp to namespace
+	*
+	* @param {RegExp} regxep
+	* @return {String} namespace
+	* @api private
+	*/
+	function toNamespace(regexp) {
+		return regexp.toString()
+			.substring(2, regexp.toString().length - 2)
+			.replace(/\.\*\?$/, '*');
+	}
+
+	/**
+	* Coerce `val`.
+	*
+	* @param {Mixed} val
+	* @return {Mixed}
+	* @api private
+	*/
+	function coerce(val) {
+		if (val instanceof Error) {
+			return val.stack || val.message;
+		}
+		return val;
+	}
+
+	createDebug.enable(createDebug.load());
+
+	return createDebug;
+}
+
+module.exports = setup;
diff --git a/helloworld/node_modules/debug/src/index.js b/helloworld/node_modules/debug/src/index.js
new file mode 100755
index 0000000..bf4c57f
--- /dev/null
+++ b/helloworld/node_modules/debug/src/index.js
@@ -0,0 +1,10 @@
+/**
+ * Detect Electron renderer / nwjs process, which is node, but we should
+ * treat as a browser.
+ */
+
+if (typeof process === 'undefined' || process.type === 'renderer' || process.browser === true || process.__nwjs) {
+	module.exports = require('./browser.js');
+} else {
+	module.exports = require('./node.js');
+}
diff --git a/helloworld/node_modules/debug/src/node.js b/helloworld/node_modules/debug/src/node.js
new file mode 100755
index 0000000..5e1f154
--- /dev/null
+++ b/helloworld/node_modules/debug/src/node.js
@@ -0,0 +1,257 @@
+/**
+ * Module dependencies.
+ */
+
+const tty = require('tty');
+const util = require('util');
+
+/**
+ * This is the Node.js implementation of `debug()`.
+ */
+
+exports.init = init;
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+
+/**
+ * Colors.
+ */
+
+exports.colors = [6, 2, 3, 4, 5, 1];
+
+try {
+	// Optional dependency (as in, doesn't need to be installed, NOT like optionalDependencies in package.json)
+	// eslint-disable-next-line import/no-extraneous-dependencies
+	const supportsColor = require('supports-color');
+
+	if (supportsColor && (supportsColor.stderr || supportsColor).level >= 2) {
+		exports.colors = [
+			20,
+			21,
+			26,
+			27,
+			32,
+			33,
+			38,
+			39,
+			40,
+			41,
+			42,
+			43,
+			44,
+			45,
+			56,
+			57,
+			62,
+			63,
+			68,
+			69,
+			74,
+			75,
+			76,
+			77,
+			78,
+			79,
+			80,
+			81,
+			92,
+			93,
+			98,
+			99,
+			112,
+			113,
+			128,
+			129,
+			134,
+			135,
+			148,
+			149,
+			160,
+			161,
+			162,
+			163,
+			164,
+			165,
+			166,
+			167,
+			168,
+			169,
+			170,
+			171,
+			172,
+			173,
+			178,
+			179,
+			184,
+			185,
+			196,
+			197,
+			198,
+			199,
+			200,
+			201,
+			202,
+			203,
+			204,
+			205,
+			206,
+			207,
+			208,
+			209,
+			214,
+			215,
+			220,
+			221
+		];
+	}
+} catch (error) {
+	// Swallow - we only care if `supports-color` is available; it doesn't have to be.
+}
+
+/**
+ * Build up the default `inspectOpts` object from the environment variables.
+ *
+ *   $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
+ */
+
+exports.inspectOpts = Object.keys(process.env).filter(key => {
+	return /^debug_/i.test(key);
+}).reduce((obj, key) => {
+	// Camel-case
+	const prop = key
+		.substring(6)
+		.toLowerCase()
+		.replace(/_([a-z])/g, (_, k) => {
+			return k.toUpperCase();
+		});
+
+	// Coerce string value into JS value
+	let val = process.env[key];
+	if (/^(yes|on|true|enabled)$/i.test(val)) {
+		val = true;
+	} else if (/^(no|off|false|disabled)$/i.test(val)) {
+		val = false;
+	} else if (val === 'null') {
+		val = null;
+	} else {
+		val = Number(val);
+	}
+
+	obj[prop] = val;
+	return obj;
+}, {});
+
+/**
+ * Is stdout a TTY? Colored output is enabled when `true`.
+ */
+
+function useColors() {
+	return 'colors' in exports.inspectOpts ?
+		Boolean(exports.inspectOpts.colors) :
+		tty.isatty(process.stderr.fd);
+}
+
+/**
+ * Adds ANSI color escape codes if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+	const {namespace: name, useColors} = this;
+
+	if (useColors) {
+		const c = this.color;
+		const colorCode = '\u001B[3' + (c < 8 ? c : '8;5;' + c);
+		const prefix = `  ${colorCode};1m${name} \u001B[0m`;
+
+		args[0] = prefix + args[0].split('\n').join('\n' + prefix);
+		args.push(colorCode + 'm+' + module.exports.humanize(this.diff) + '\u001B[0m');
+	} else {
+		args[0] = getDate() + name + ' ' + args[0];
+	}
+}
+
+function getDate() {
+	if (exports.inspectOpts.hideDate) {
+		return '';
+	}
+	return new Date().toISOString() + ' ';
+}
+
+/**
+ * Invokes `util.format()` with the specified arguments and writes to stderr.
+ */
+
+function log(...args) {
+	return process.stderr.write(util.format(...args) + '\n');
+}
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+function save(namespaces) {
+	if (namespaces) {
+		process.env.DEBUG = namespaces;
+	} else {
+		// If you set a process.env field to null or undefined, it gets cast to the
+		// string 'null' or 'undefined'. Just delete instead.
+		delete process.env.DEBUG;
+	}
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+
+function load() {
+	return process.env.DEBUG;
+}
+
+/**
+ * Init logic for `debug` instances.
+ *
+ * Create a new `inspectOpts` object in case `useColors` is set
+ * differently for a particular `debug` instance.
+ */
+
+function init(debug) {
+	debug.inspectOpts = {};
+
+	const keys = Object.keys(exports.inspectOpts);
+	for (let i = 0; i < keys.length; i++) {
+		debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
+	}
+}
+
+module.exports = require('./common')(exports);
+
+const {formatters} = module.exports;
+
+/**
+ * Map %o to `util.inspect()`, all on a single line.
+ */
+
+formatters.o = function (v) {
+	this.inspectOpts.colors = this.useColors;
+	return util.inspect(v, this.inspectOpts)
+		.replace(/\s*\n\s*/g, ' ');
+};
+
+/**
+ * Map %O to `util.inspect()`, allowing multiple lines if needed.
+ */
+
+formatters.O = function (v) {
+	this.inspectOpts.colors = this.useColors;
+	return util.inspect(v, this.inspectOpts);
+};
diff --git a/helloworld/node_modules/decamelize/index.js b/helloworld/node_modules/decamelize/index.js
new file mode 100755
index 0000000..8d5bab7
--- /dev/null
+++ b/helloworld/node_modules/decamelize/index.js
@@ -0,0 +1,13 @@
+'use strict';
+module.exports = function (str, sep) {
+	if (typeof str !== 'string') {
+		throw new TypeError('Expected a string');
+	}
+
+	sep = typeof sep === 'undefined' ? '_' : sep;
+
+	return str
+		.replace(/([a-z\d])([A-Z])/g, '$1' + sep + '$2')
+		.replace(/([A-Z]+)([A-Z][a-z\d]+)/g, '$1' + sep + '$2')
+		.toLowerCase();
+};
diff --git a/helloworld/node_modules/decamelize/license b/helloworld/node_modules/decamelize/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/decamelize/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/decamelize/readme.md b/helloworld/node_modules/decamelize/readme.md
new file mode 100755
index 0000000..624c7ee
--- /dev/null
+++ b/helloworld/node_modules/decamelize/readme.md
@@ -0,0 +1,48 @@
+# decamelize [![Build Status](https://travis-ci.org/sindresorhus/decamelize.svg?branch=master)](https://travis-ci.org/sindresorhus/decamelize)
+
+> Convert a camelized string into a lowercased one with a custom separator<br>
+> Example: `unicornRainbow` → `unicorn_rainbow`
+
+
+## Install
+
+```
+$ npm install --save decamelize
+```
+
+
+## Usage
+
+```js
+const decamelize = require('decamelize');
+
+decamelize('unicornRainbow');
+//=> 'unicorn_rainbow'
+
+decamelize('unicornRainbow', '-');
+//=> 'unicorn-rainbow'
+```
+
+
+## API
+
+### decamelize(input, [separator])
+
+#### input
+
+Type: `string`
+
+#### separator
+
+Type: `string`<br>
+Default: `_`
+
+
+## Related
+
+See [`camelcase`](https://github.com/sindresorhus/camelcase) for the inverse.
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/helloworld/node_modules/decompress-response/index.js b/helloworld/node_modules/decompress-response/index.js
new file mode 100755
index 0000000..d8acd4a
--- /dev/null
+++ b/helloworld/node_modules/decompress-response/index.js
@@ -0,0 +1,29 @@
+'use strict';
+const PassThrough = require('stream').PassThrough;
+const zlib = require('zlib');
+const mimicResponse = require('mimic-response');
+
+module.exports = response => {
+	// TODO: Use Array#includes when targeting Node.js 6
+	if (['gzip', 'deflate'].indexOf(response.headers['content-encoding']) === -1) {
+		return response;
+	}
+
+	const unzip = zlib.createUnzip();
+	const stream = new PassThrough();
+
+	mimicResponse(response, stream);
+
+	unzip.on('error', err => {
+		if (err.code === 'Z_BUF_ERROR') {
+			stream.end();
+			return;
+		}
+
+		stream.emit('error', err);
+	});
+
+	response.pipe(unzip).pipe(stream);
+
+	return stream;
+};
diff --git a/helloworld/node_modules/decompress-response/license b/helloworld/node_modules/decompress-response/license
new file mode 100755
index 0000000..32a16ce
--- /dev/null
+++ b/helloworld/node_modules/decompress-response/license
@@ -0,0 +1,21 @@
+`The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/decompress-response/readme.md b/helloworld/node_modules/decompress-response/readme.md
new file mode 100755
index 0000000..1b98767
--- /dev/null
+++ b/helloworld/node_modules/decompress-response/readme.md
@@ -0,0 +1,31 @@
+# decompress-response [![Build Status](https://travis-ci.org/sindresorhus/decompress-response.svg?branch=master)](https://travis-ci.org/sindresorhus/decompress-response)
+
+> Decompress a HTTP response if needed
+
+Decompresses the [response](https://nodejs.org/api/http.html#http_class_http_incomingmessage) from [`http.request`](https://nodejs.org/api/http.html#http_http_request_options_callback) if it's gzipped or deflated, otherwise just passes it through.
+
+Used by [`got`](https://github.com/sindresorhus/got).
+
+
+## Install
+
+```
+$ npm install decompress-response
+```
+
+
+## Usage
+
+```js
+const http = require('http');
+const decompressResponse = require('decompress-response');
+
+http.get('http://sindresorhus.com', response => {
+	response = decompressResponse(response);
+});
+```
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/helloworld/node_modules/defer-to-connect/LICENSE b/helloworld/node_modules/defer-to-connect/LICENSE
new file mode 100755
index 0000000..20c551b
--- /dev/null
+++ b/helloworld/node_modules/defer-to-connect/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 Szymon Marczak
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/helloworld/node_modules/defer-to-connect/README.md b/helloworld/node_modules/defer-to-connect/README.md
new file mode 100755
index 0000000..323e645
--- /dev/null
+++ b/helloworld/node_modules/defer-to-connect/README.md
@@ -0,0 +1,26 @@
+# defer-to-connect
+
+> The safe way to handle the `connect` socket event
+
+Once you receive the socket, it may be already connected.<br>
+To avoid checking that, use `defer-to-connect`. It'll do that for you.
+
+## Usage
+
+```js
+const deferToConnect = require('defer-to-connect');
+
+deferToConnect(socket, () => {
+    console.log('Connected!');
+});
+```
+
+## API
+
+### deferToConnect(socket, fn)
+
+Calls `fn()` when connected.
+
+## License
+
+MIT
diff --git a/helloworld/node_modules/defer-to-connect/index.js b/helloworld/node_modules/defer-to-connect/index.js
new file mode 100755
index 0000000..9f3b9dc
--- /dev/null
+++ b/helloworld/node_modules/defer-to-connect/index.js
@@ -0,0 +1,9 @@
+'use strict';
+
+module.exports = (socket, callback) => {
+	if (socket.writable && !socket.connecting) {
+		callback();
+	} else {
+		socket.once('connect', callback);
+	}
+};
diff --git a/helloworld/node_modules/defer-to-connect/package.json b/helloworld/node_modules/defer-to-connect/package.json
new file mode 100755
index 0000000..849abe7
--- /dev/null
+++ b/helloworld/node_modules/defer-to-connect/package.json
@@ -0,0 +1,51 @@
+{
+  "_from": "defer-to-connect@^1.0.1",
+  "_id": "defer-to-connect@1.0.2",
+  "_inBundle": false,
+  "_integrity": "sha512-k09hcQcTDY+cwgiwa6PYKLm3jlagNzQ+RSvhjzESOGOx+MNOuXkxTfEvPrO1IOQ81tArCFYQgi631clB70RpQw==",
+  "_location": "/defer-to-connect",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "defer-to-connect@^1.0.1",
+    "name": "defer-to-connect",
+    "escapedName": "defer-to-connect",
+    "rawSpec": "^1.0.1",
+    "saveSpec": null,
+    "fetchSpec": "^1.0.1"
+  },
+  "_requiredBy": [
+    "/@szmarczak/http-timer"
+  ],
+  "_resolved": "https://registry.npmjs.org/defer-to-connect/-/defer-to-connect-1.0.2.tgz",
+  "_shasum": "4bae758a314b034ae33902b5aac25a8dd6a8633e",
+  "_spec": "defer-to-connect@^1.0.1",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/@szmarczak/http-timer",
+  "author": {
+    "name": "Szymon Marczak"
+  },
+  "bugs": {
+    "url": "https://github.com/szmarczak/defer-to-connect/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "The safe way to handle the `connect` socket event",
+  "homepage": "https://github.com/szmarczak/defer-to-connect#readme",
+  "keywords": [
+    "socket",
+    "connect",
+    "event"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "name": "defer-to-connect",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/szmarczak/defer-to-connect.git"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "version": "1.0.2"
+}
diff --git a/helloworld/node_modules/dns-packet/CHANGELOG.md b/helloworld/node_modules/dns-packet/CHANGELOG.md
new file mode 100755
index 0000000..6b714e0
--- /dev/null
+++ b/helloworld/node_modules/dns-packet/CHANGELOG.md
@@ -0,0 +1,30 @@
+# Version 5.2.0 - 2019-02-21
+
+- Feature: Added support for de/encoding certain OPT options.
+
+# Version 5.1.0 - 2019-01-22
+
+- Feature: Added support for the RP record type.
+
+# Version 5.0.0 - 2018-06-01
+
+- Breaking: Node.js 6.0.0 or greater is now required.
+- Feature: Added support for DNSSEC record types.
+
+# Version 4.1.0 - 2018-02-11
+
+- Feature: Added support for the MX record type.
+
+# Version 4.0.0 - 2018-02-04
+
+- Feature: Added `streamEncode` and `streamDecode` methods for encoding TCP packets.
+- Breaking: Changed the decoded value of TXT records to an array of Buffers. This is to accomodate DNS-SD records which rely on the individual strings record being separated.
+- Breaking: Renamed the `flag_trunc` and `flag_auth` to `flag_tc` and `flag_aa` to match the names of these in the dns standards.
+
+# Version 3.0.0 - 2018-01-12
+
+- Breaking: The `class` option has been changed from integer to string.
+
+# Version 2.0.0 - 2018-01-11
+
+- Breaking: Converted module to ES2015, now requires Node.js 4.0 or greater
diff --git a/helloworld/node_modules/dns-packet/LICENSE b/helloworld/node_modules/dns-packet/LICENSE
new file mode 100755
index 0000000..bae9da7
--- /dev/null
+++ b/helloworld/node_modules/dns-packet/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Mathias Buus
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/dns-packet/README.md b/helloworld/node_modules/dns-packet/README.md
new file mode 100755
index 0000000..2a729b3
--- /dev/null
+++ b/helloworld/node_modules/dns-packet/README.md
@@ -0,0 +1,365 @@
+# dns-packet
+[![](https://img.shields.io/npm/v/dns-packet.svg?style=flat)](https://www.npmjs.org/package/dns-packet) [![](https://img.shields.io/npm/dm/dns-packet.svg)](https://www.npmjs.org/package/dns-packet) [![](https://api.travis-ci.org/mafintosh/dns-packet.svg?style=flat)](https://travis-ci.org/mafintosh/dns-packet) [![Coverage Status](https://coveralls.io/repos/github/mafintosh/dns-packet/badge.svg?branch=master)](https://coveralls.io/github/mafintosh/dns-packet?branch=master)
+
+An [abstract-encoding](https://github.com/mafintosh/abstract-encoding) compliant module for encoding / decoding DNS packets. Lifted out of [multicast-dns](https://github.com/mafintosh/multicast-dns) as a separate module.
+
+```
+npm install dns-packet
+```
+
+## UDP Usage
+
+``` js
+const dnsPacket = require('dns-packet')
+const dgram = require('dgram')
+
+const socket = dgram.createSocket('udp4')
+
+const buf = dnsPacket.encode({
+  type: 'query',
+  id: 1,
+  flags: dnsPacket.RECURSION_DESIRED,
+  questions: [{
+    type: 'A',
+    name: 'google.com'
+  }]
+})
+
+socket.on('message', message => {
+  console.log(dnsPacket.decode(message)) // prints out a response from google dns
+})
+
+socket.send(buf, 0, buf.length, 53, '8.8.8.8')
+```
+
+Also see [the UDP example](examples/udp.js).
+
+## TCP, TLS, HTTPS
+
+While DNS has traditionally been used over a datagram transport, it is increasingly being carried over TCP for larger responses commonly including DNSSEC responses and TLS or HTTPS for enhanced security. See below examples on how to use `dns-packet` to wrap DNS packets in these protocols:
+
+- [TCP](examples/tcp.js)
+- [DNS over TLS](examples/tls.js)
+- [DNS over HTTPS](examples/doh.js)
+
+## API
+
+#### `var buf = packets.encode(packet, [buf], [offset])`
+
+Encodes a DNS packet into a buffer containing a UDP payload.
+
+#### `var packet = packets.decode(buf, [offset])`
+
+Decode a DNS packet from a buffer containing a UDP payload.
+
+#### `var buf = packets.streamEncode(packet, [buf], [offset])`
+
+Encodes a DNS packet into a buffer containing a TCP payload.
+
+#### `var packet = packets.streamDecode(buf, [offset])`
+
+Decode a DNS packet from a buffer containing a TCP payload.
+
+#### `var len = packets.encodingLength(packet)`
+
+Returns how many bytes are needed to encode the DNS packet
+
+## Packets
+
+Packets look like this
+
+``` js
+{
+  type: 'query|response',
+  id: optionalIdNumber,
+  flags: optionalBitFlags,
+  questions: [...],
+  answers: [...],
+  additionals: [...],
+  authorities: [...]
+}
+```
+
+The bit flags available are
+
+``` js
+packet.RECURSION_DESIRED
+packet.RECURSION_AVAILABLE
+packet.TRUNCATED_RESPONSE
+packet.AUTHORITATIVE_ANSWER
+packet.AUTHENTIC_DATA
+packet.CHECKING_DISABLED
+```
+
+To use more than one flag bitwise-or them together
+
+``` js
+var flags = packet.RECURSION_DESIRED | packet.RECURSION_AVAILABLE
+```
+
+And to check for a flag use bitwise-and
+
+``` js
+var isRecursive = message.flags & packet.RECURSION_DESIRED
+```
+
+A question looks like this
+
+``` js
+{
+  type: 'A', // or SRV, AAAA, etc
+  class: 'IN', // one of IN, CS, CH, HS, ANY. Default: IN
+  name: 'google.com' // which record are you looking for
+}
+```
+
+And an answer, additional, or authority looks like this
+
+``` js
+{
+  type: 'A', // or SRV, AAAA, etc
+  class: 'IN', // one of IN, CS, CH, HS
+  name: 'google.com', // which name is this record for
+  ttl: optionalTimeToLiveInSeconds,
+  (record specific data, see below)
+}
+```
+
+## Supported record types
+
+#### `A`
+
+``` js
+{
+  data: 'IPv4 address' // fx 127.0.0.1
+}
+```
+
+#### `AAAA`
+
+``` js
+{
+  data: 'IPv6 address' // fx fe80::1
+}
+```
+
+#### `CAA`
+
+``` js
+{
+  flags: 128, // octet
+  tag: 'issue|issuewild|iodef',
+  value: 'ca.example.net',
+  issuerCritical: false
+}
+```
+
+#### `CNAME`
+
+``` js
+{
+  data: 'cname.to.another.record'
+}
+```
+
+#### `DNAME`
+
+``` js
+{
+  data: 'dname.to.another.record'
+}
+```
+
+#### `DNSKEY`
+
+``` js
+{
+  flags: 257, // 16 bits
+  algorithm: 1, // octet
+  key: Buffer
+}
+```
+
+#### `DS`
+
+``` js
+{
+  keyTag: 12345,
+  algorithm: 8,
+  digestType: 1,
+  digest: Buffer
+}
+```
+
+#### `HINFO`
+
+``` js
+{
+  data: {
+    cpu: 'cpu info',
+    os: 'os info'
+  }
+}
+```
+
+#### `MX`
+
+``` js
+{
+  preference: 10,
+  exchange: 'mail.example.net'
+}
+```
+
+#### `NS`
+
+``` js
+{
+  data: nameServer
+}
+```
+
+#### `NSEC`
+
+``` js
+{
+  nextDomain: 'a.domain',
+  rrtypes: ['A', 'TXT', 'RRSIG']
+}
+```
+
+#### `NSEC3`
+
+``` js
+{
+  algorithm: 1,
+  flags: 0,
+  iterations: 2,
+  salt: Buffer,
+  nextDomain: Buffer, // Hashed per RFC5155
+  rrtypes: ['A', 'TXT', 'RRSIG']
+}
+```
+
+#### `NULL`
+
+``` js
+{
+  data: Buffer('any binary data')
+}
+```
+
+#### `OPT`
+
+[EDNS0](https://tools.ietf.org/html/rfc6891) options.
+
+``` js
+{
+  type: 'OPT',
+  name: '.',
+  udpPayloadSize: 4096,
+  flags: packet.DNSSEC_OK,
+  options: [{
+    // pass in any code/data for generic EDNS0 options
+    code: 12,
+    data: Buffer.alloc(31)
+  }, {
+    // Several EDNS0 options have enhanced support
+    code: 'PADDING',
+    length: 31,
+  }, {
+    code: 'CLIENT_SUBNET',
+    family: 2, // 1 for IPv4, 2 for IPv6
+    sourcePrefixLength: 64, // used to truncate IP address
+    scopePrefixLength: 0,
+    ip: 'fe80::',
+  }, {
+    code: 'TCP_KEEPALIVE',
+    timeout: 150 // increments of 100ms.  This means 15s.
+  }, {
+    code: 'KEY_TAG',
+    tags: [1, 2, 3],
+  }]
+}
+```
+
+The options `PADDING`, `CLIENT_SUBNET`, `TCP_KEEPALIVE` and `KEY_TAG` support enhanced de/encoding. See [optionscodes.js](https://github.com/mafintosh/dns-packet/blob/master/optioncodes.js) for all supported option codes. If the `data` property is present on a option, it takes precedence. On decoding, `data` will always be defined.
+
+#### `PTR`
+
+``` js
+{
+  data: 'points.to.another.record'
+}
+```
+
+#### `RP`
+
+``` js
+{
+  mbox: 'admin.example.com',
+  txt: 'txt.example.com'
+}
+```
+
+#### `RRSIG`
+
+``` js
+{
+  typeCovered: 'A',
+  algorithm: 8,
+  labels: 1,
+  originalTTL: 3600,
+  expiration: timestamp,
+  inception: timestamp,
+  keyTag: 12345,
+  signersName: 'a.name',
+  signature: Buffer
+}
+```
+
+#### `SOA`
+
+``` js
+{
+  data:
+    {
+      mname: domainName,
+      rname: mailbox,
+      serial: zoneSerial,
+      refresh: refreshInterval,
+      retry: retryInterval,
+      expire: expireInterval,
+      minimum: minimumTTL
+    }
+}
+```
+
+#### `SRV`
+
+``` js
+{
+  data: {
+    port: servicePort,
+    target: serviceHostName,
+    priority: optionalServicePriority,
+    weight: optionalServiceWeight
+  }
+}
+```
+
+#### `TXT`
+
+``` js
+{
+  data: 'text' || Buffer || [ Buffer || 'text' ]
+}
+```
+
+When encoding, scalar values are converted to an array and strings are converted to UTF-8 encoded Buffers. When decoding, the return value will always be an array of Buffer.
+
+If you need another record type, open an issue and we'll try to add it.
+
+## License
+
+MIT
diff --git a/helloworld/node_modules/dns-packet/classes.js b/helloworld/node_modules/dns-packet/classes.js
new file mode 100755
index 0000000..9a3d9b1
--- /dev/null
+++ b/helloworld/node_modules/dns-packet/classes.js
@@ -0,0 +1,23 @@
+'use strict'
+
+exports.toString = function (klass) {
+  switch (klass) {
+    case 1: return 'IN'
+    case 2: return 'CS'
+    case 3: return 'CH'
+    case 4: return 'HS'
+    case 255: return 'ANY'
+  }
+  return 'UNKNOWN_' + klass
+}
+
+exports.toClass = function (name) {
+  switch (name.toUpperCase()) {
+    case 'IN': return 1
+    case 'CS': return 2
+    case 'CH': return 3
+    case 'HS': return 4
+    case 'ANY': return 255
+  }
+  return 0
+}
diff --git a/helloworld/node_modules/dns-packet/index.js b/helloworld/node_modules/dns-packet/index.js
new file mode 100755
index 0000000..b6a52c6
--- /dev/null
+++ b/helloworld/node_modules/dns-packet/index.js
@@ -0,0 +1,1541 @@
+'use strict'
+
+const types = require('./types')
+const rcodes = require('./rcodes')
+const opcodes = require('./opcodes')
+const classes = require('./classes')
+const optioncodes = require('./optioncodes')
+const ip = require('ip')
+
+const QUERY_FLAG = 0
+const RESPONSE_FLAG = 1 << 15
+const FLUSH_MASK = 1 << 15
+const NOT_FLUSH_MASK = ~FLUSH_MASK
+const QU_MASK = 1 << 15
+const NOT_QU_MASK = ~QU_MASK
+
+const name = exports.txt = exports.name = {}
+
+name.encode = function (str, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(name.encodingLength(str))
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  // strip leading and trailing .
+  const n = str.replace(/^\.|\.$/gm, '')
+  if (n.length) {
+    const list = n.split('.')
+
+    for (let i = 0; i < list.length; i++) {
+      const len = buf.write(list[i], offset + 1)
+      buf[offset] = len
+      offset += len + 1
+    }
+  }
+
+  buf[offset++] = 0
+
+  name.encode.bytes = offset - oldOffset
+  return buf
+}
+
+name.encode.bytes = 0
+
+name.decode = function (buf, offset) {
+  if (!offset) offset = 0
+
+  const list = []
+  const oldOffset = offset
+  let len = buf[offset++]
+
+  if (len === 0) {
+    name.decode.bytes = 1
+    return '.'
+  }
+  if (len >= 0xc0) {
+    const res = name.decode(buf, buf.readUInt16BE(offset - 1) - 0xc000)
+    name.decode.bytes = 2
+    return res
+  }
+
+  while (len) {
+    if (len >= 0xc0) {
+      list.push(name.decode(buf, buf.readUInt16BE(offset - 1) - 0xc000))
+      offset++
+      break
+    }
+
+    list.push(buf.toString('utf-8', offset, offset + len))
+    offset += len
+    len = buf[offset++]
+  }
+
+  name.decode.bytes = offset - oldOffset
+  return list.join('.')
+}
+
+name.decode.bytes = 0
+
+name.encodingLength = function (n) {
+  if (n === '.') return 1
+  return Buffer.byteLength(n) + 2
+}
+
+const string = {}
+
+string.encode = function (s, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(string.encodingLength(s))
+  if (!offset) offset = 0
+
+  const len = buf.write(s, offset + 1)
+  buf[offset] = len
+  string.encode.bytes = len + 1
+  return buf
+}
+
+string.encode.bytes = 0
+
+string.decode = function (buf, offset) {
+  if (!offset) offset = 0
+
+  const len = buf[offset]
+  const s = buf.toString('utf-8', offset + 1, offset + 1 + len)
+  string.decode.bytes = len + 1
+  return s
+}
+
+string.decode.bytes = 0
+
+string.encodingLength = function (s) {
+  return Buffer.byteLength(s) + 1
+}
+
+const header = {}
+
+header.encode = function (h, buf, offset) {
+  if (!buf) buf = header.encodingLength(h)
+  if (!offset) offset = 0
+
+  const flags = (h.flags || 0) & 32767
+  const type = h.type === 'response' ? RESPONSE_FLAG : QUERY_FLAG
+
+  buf.writeUInt16BE(h.id || 0, offset)
+  buf.writeUInt16BE(flags | type, offset + 2)
+  buf.writeUInt16BE(h.questions.length, offset + 4)
+  buf.writeUInt16BE(h.answers.length, offset + 6)
+  buf.writeUInt16BE(h.authorities.length, offset + 8)
+  buf.writeUInt16BE(h.additionals.length, offset + 10)
+
+  return buf
+}
+
+header.encode.bytes = 12
+
+header.decode = function (buf, offset) {
+  if (!offset) offset = 0
+  if (buf.length < 12) throw new Error('Header must be 12 bytes')
+  const flags = buf.readUInt16BE(offset + 2)
+
+  return {
+    id: buf.readUInt16BE(offset),
+    type: flags & RESPONSE_FLAG ? 'response' : 'query',
+    flags: flags & 32767,
+    flag_qr: ((flags >> 15) & 0x1) === 1,
+    opcode: opcodes.toString((flags >> 11) & 0xf),
+    flag_aa: ((flags >> 10) & 0x1) === 1,
+    flag_tc: ((flags >> 9) & 0x1) === 1,
+    flag_rd: ((flags >> 8) & 0x1) === 1,
+    flag_ra: ((flags >> 7) & 0x1) === 1,
+    flag_z: ((flags >> 6) & 0x1) === 1,
+    flag_ad: ((flags >> 5) & 0x1) === 1,
+    flag_cd: ((flags >> 4) & 0x1) === 1,
+    rcode: rcodes.toString(flags & 0xf),
+    questions: new Array(buf.readUInt16BE(offset + 4)),
+    answers: new Array(buf.readUInt16BE(offset + 6)),
+    authorities: new Array(buf.readUInt16BE(offset + 8)),
+    additionals: new Array(buf.readUInt16BE(offset + 10))
+  }
+}
+
+header.decode.bytes = 12
+
+header.encodingLength = function () {
+  return 12
+}
+
+const runknown = exports.unknown = {}
+
+runknown.encode = function (data, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(runknown.encodingLength(data))
+  if (!offset) offset = 0
+
+  buf.writeUInt16BE(data.length, offset)
+  data.copy(buf, offset + 2)
+
+  runknown.encode.bytes = data.length + 2
+  return buf
+}
+
+runknown.encode.bytes = 0
+
+runknown.decode = function (buf, offset) {
+  if (!offset) offset = 0
+
+  const len = buf.readUInt16BE(offset)
+  const data = buf.slice(offset + 2, offset + 2 + len)
+  runknown.decode.bytes = len + 2
+  return data
+}
+
+runknown.decode.bytes = 0
+
+runknown.encodingLength = function (data) {
+  return data.length + 2
+}
+
+const rns = exports.ns = {}
+
+rns.encode = function (data, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(rns.encodingLength(data))
+  if (!offset) offset = 0
+
+  name.encode(data, buf, offset + 2)
+  buf.writeUInt16BE(name.encode.bytes, offset)
+  rns.encode.bytes = name.encode.bytes + 2
+  return buf
+}
+
+rns.encode.bytes = 0
+
+rns.decode = function (buf, offset) {
+  if (!offset) offset = 0
+
+  const len = buf.readUInt16BE(offset)
+  const dd = name.decode(buf, offset + 2)
+
+  rns.decode.bytes = len + 2
+  return dd
+}
+
+rns.decode.bytes = 0
+
+rns.encodingLength = function (data) {
+  return name.encodingLength(data) + 2
+}
+
+const rsoa = exports.soa = {}
+
+rsoa.encode = function (data, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(rsoa.encodingLength(data))
+  if (!offset) offset = 0
+
+  const oldOffset = offset
+  offset += 2
+  name.encode(data.mname, buf, offset)
+  offset += name.encode.bytes
+  name.encode(data.rname, buf, offset)
+  offset += name.encode.bytes
+  buf.writeUInt32BE(data.serial || 0, offset)
+  offset += 4
+  buf.writeUInt32BE(data.refresh || 0, offset)
+  offset += 4
+  buf.writeUInt32BE(data.retry || 0, offset)
+  offset += 4
+  buf.writeUInt32BE(data.expire || 0, offset)
+  offset += 4
+  buf.writeUInt32BE(data.minimum || 0, offset)
+  offset += 4
+
+  buf.writeUInt16BE(offset - oldOffset - 2, oldOffset)
+  rsoa.encode.bytes = offset - oldOffset
+  return buf
+}
+
+rsoa.encode.bytes = 0
+
+rsoa.decode = function (buf, offset) {
+  if (!offset) offset = 0
+
+  const oldOffset = offset
+
+  const data = {}
+  offset += 2
+  data.mname = name.decode(buf, offset)
+  offset += name.decode.bytes
+  data.rname = name.decode(buf, offset)
+  offset += name.decode.bytes
+  data.serial = buf.readUInt32BE(offset)
+  offset += 4
+  data.refresh = buf.readUInt32BE(offset)
+  offset += 4
+  data.retry = buf.readUInt32BE(offset)
+  offset += 4
+  data.expire = buf.readUInt32BE(offset)
+  offset += 4
+  data.minimum = buf.readUInt32BE(offset)
+  offset += 4
+
+  rsoa.decode.bytes = offset - oldOffset
+  return data
+}
+
+rsoa.decode.bytes = 0
+
+rsoa.encodingLength = function (data) {
+  return 22 + name.encodingLength(data.mname) + name.encodingLength(data.rname)
+}
+
+const rtxt = exports.txt = {}
+
+rtxt.encode = function (data, buf, offset) {
+  if (!Array.isArray(data)) data = [data]
+  for (let i = 0; i < data.length; i++) {
+    if (typeof data[i] === 'string') {
+      data[i] = Buffer.from(data[i])
+    }
+    if (!Buffer.isBuffer(data[i])) {
+      throw new Error('Must be a Buffer')
+    }
+  }
+
+  if (!buf) buf = Buffer.allocUnsafe(rtxt.encodingLength(data))
+  if (!offset) offset = 0
+
+  const oldOffset = offset
+  offset += 2
+
+  data.forEach(function (d) {
+    buf[offset++] = d.length
+    d.copy(buf, offset, 0, d.length)
+    offset += d.length
+  })
+
+  buf.writeUInt16BE(offset - oldOffset - 2, oldOffset)
+  rtxt.encode.bytes = offset - oldOffset
+  return buf
+}
+
+rtxt.encode.bytes = 0
+
+rtxt.decode = function (buf, offset) {
+  if (!offset) offset = 0
+  const oldOffset = offset
+  let remaining = buf.readUInt16BE(offset)
+  offset += 2
+
+  let data = []
+  while (remaining > 0) {
+    const len = buf[offset++]
+    --remaining
+    if (remaining < len) {
+      throw new Error('Buffer overflow')
+    }
+    data.push(buf.slice(offset, offset + len))
+    offset += len
+    remaining -= len
+  }
+
+  rtxt.decode.bytes = offset - oldOffset
+  return data
+}
+
+rtxt.decode.bytes = 0
+
+rtxt.encodingLength = function (data) {
+  if (!Array.isArray(data)) data = [data]
+  let length = 2
+  data.forEach(function (buf) {
+    if (typeof buf === 'string') {
+      length += Buffer.byteLength(buf) + 1
+    } else {
+      length += buf.length + 1
+    }
+  })
+  return length
+}
+
+const rnull = exports.null = {}
+
+rnull.encode = function (data, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(rnull.encodingLength(data))
+  if (!offset) offset = 0
+
+  if (typeof data === 'string') data = Buffer.from(data)
+  if (!data) data = Buffer.allocUnsafe(0)
+
+  const oldOffset = offset
+  offset += 2
+
+  const len = data.length
+  data.copy(buf, offset, 0, len)
+  offset += len
+
+  buf.writeUInt16BE(offset - oldOffset - 2, oldOffset)
+  rnull.encode.bytes = offset - oldOffset
+  return buf
+}
+
+rnull.encode.bytes = 0
+
+rnull.decode = function (buf, offset) {
+  if (!offset) offset = 0
+  const oldOffset = offset
+  const len = buf.readUInt16BE(offset)
+
+  offset += 2
+
+  const data = buf.slice(offset, offset + len)
+  offset += len
+
+  rnull.decode.bytes = offset - oldOffset
+  return data
+}
+
+rnull.decode.bytes = 0
+
+rnull.encodingLength = function (data) {
+  if (!data) return 2
+  return (Buffer.isBuffer(data) ? data.length : Buffer.byteLength(data)) + 2
+}
+
+const rhinfo = exports.hinfo = {}
+
+rhinfo.encode = function (data, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(rhinfo.encodingLength(data))
+  if (!offset) offset = 0
+
+  const oldOffset = offset
+  offset += 2
+  string.encode(data.cpu, buf, offset)
+  offset += string.encode.bytes
+  string.encode(data.os, buf, offset)
+  offset += string.encode.bytes
+  buf.writeUInt16BE(offset - oldOffset - 2, oldOffset)
+  rhinfo.encode.bytes = offset - oldOffset
+  return buf
+}
+
+rhinfo.encode.bytes = 0
+
+rhinfo.decode = function (buf, offset) {
+  if (!offset) offset = 0
+
+  const oldOffset = offset
+
+  const data = {}
+  offset += 2
+  data.cpu = string.decode(buf, offset)
+  offset += string.decode.bytes
+  data.os = string.decode(buf, offset)
+  offset += string.decode.bytes
+  rhinfo.decode.bytes = offset - oldOffset
+  return data
+}
+
+rhinfo.decode.bytes = 0
+
+rhinfo.encodingLength = function (data) {
+  return string.encodingLength(data.cpu) + string.encodingLength(data.os) + 2
+}
+
+const rptr = exports.ptr = {}
+const rcname = exports.cname = rptr
+const rdname = exports.dname = rptr
+
+rptr.encode = function (data, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(rptr.encodingLength(data))
+  if (!offset) offset = 0
+
+  name.encode(data, buf, offset + 2)
+  buf.writeUInt16BE(name.encode.bytes, offset)
+  rptr.encode.bytes = name.encode.bytes + 2
+  return buf
+}
+
+rptr.encode.bytes = 0
+
+rptr.decode = function (buf, offset) {
+  if (!offset) offset = 0
+
+  const data = name.decode(buf, offset + 2)
+  rptr.decode.bytes = name.decode.bytes + 2
+  return data
+}
+
+rptr.decode.bytes = 0
+
+rptr.encodingLength = function (data) {
+  return name.encodingLength(data) + 2
+}
+
+const rsrv = exports.srv = {}
+
+rsrv.encode = function (data, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(rsrv.encodingLength(data))
+  if (!offset) offset = 0
+
+  buf.writeUInt16BE(data.priority || 0, offset + 2)
+  buf.writeUInt16BE(data.weight || 0, offset + 4)
+  buf.writeUInt16BE(data.port || 0, offset + 6)
+  name.encode(data.target, buf, offset + 8)
+
+  const len = name.encode.bytes + 6
+  buf.writeUInt16BE(len, offset)
+
+  rsrv.encode.bytes = len + 2
+  return buf
+}
+
+rsrv.encode.bytes = 0
+
+rsrv.decode = function (buf, offset) {
+  if (!offset) offset = 0
+
+  const len = buf.readUInt16BE(offset)
+
+  const data = {}
+  data.priority = buf.readUInt16BE(offset + 2)
+  data.weight = buf.readUInt16BE(offset + 4)
+  data.port = buf.readUInt16BE(offset + 6)
+  data.target = name.decode(buf, offset + 8)
+
+  rsrv.decode.bytes = len + 2
+  return data
+}
+
+rsrv.decode.bytes = 0
+
+rsrv.encodingLength = function (data) {
+  return 8 + name.encodingLength(data.target)
+}
+
+const rcaa = exports.caa = {}
+
+rcaa.ISSUER_CRITICAL = 1 << 7
+
+rcaa.encode = function (data, buf, offset) {
+  const len = rcaa.encodingLength(data)
+
+  if (!buf) buf = Buffer.allocUnsafe(rcaa.encodingLength(data))
+  if (!offset) offset = 0
+
+  if (data.issuerCritical) {
+    data.flags = rcaa.ISSUER_CRITICAL
+  }
+
+  buf.writeUInt16BE(len - 2, offset)
+  offset += 2
+  buf.writeUInt8(data.flags || 0, offset)
+  offset += 1
+  string.encode(data.tag, buf, offset)
+  offset += string.encode.bytes
+  buf.write(data.value, offset)
+  offset += Buffer.byteLength(data.value)
+
+  rcaa.encode.bytes = len
+  return buf
+}
+
+rcaa.encode.bytes = 0
+
+rcaa.decode = function (buf, offset) {
+  if (!offset) offset = 0
+
+  const len = buf.readUInt16BE(offset)
+  offset += 2
+
+  const oldOffset = offset
+  const data = {}
+  data.flags = buf.readUInt8(offset)
+  offset += 1
+  data.tag = string.decode(buf, offset)
+  offset += string.decode.bytes
+  data.value = buf.toString('utf-8', offset, oldOffset + len)
+
+  data.issuerCritical = !!(data.flags & rcaa.ISSUER_CRITICAL)
+
+  rcaa.decode.bytes = len + 2
+
+  return data
+}
+
+rcaa.decode.bytes = 0
+
+rcaa.encodingLength = function (data) {
+  return string.encodingLength(data.tag) + string.encodingLength(data.value) + 2
+}
+
+const rmx = exports.mx = {}
+
+rmx.encode = function (data, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(rmx.encodingLength(data))
+  if (!offset) offset = 0
+
+  const oldOffset = offset
+  offset += 2
+  buf.writeUInt16BE(data.preference || 0, offset)
+  offset += 2
+  name.encode(data.exchange, buf, offset)
+  offset += name.encode.bytes
+
+  buf.writeUInt16BE(offset - oldOffset - 2, oldOffset)
+  rmx.encode.bytes = offset - oldOffset
+  return buf
+}
+
+rmx.encode.bytes = 0
+
+rmx.decode = function (buf, offset) {
+  if (!offset) offset = 0
+
+  const oldOffset = offset
+
+  const data = {}
+  offset += 2
+  data.preference = buf.readUInt16BE(offset)
+  offset += 2
+  data.exchange = name.decode(buf, offset)
+  offset += name.decode.bytes
+
+  rmx.decode.bytes = offset - oldOffset
+  return data
+}
+
+rmx.encodingLength = function (data) {
+  return 4 + name.encodingLength(data.exchange)
+}
+
+const ra = exports.a = {}
+
+ra.encode = function (host, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(ra.encodingLength(host))
+  if (!offset) offset = 0
+
+  buf.writeUInt16BE(4, offset)
+  offset += 2
+  ip.toBuffer(host, buf, offset)
+  ra.encode.bytes = 6
+  return buf
+}
+
+ra.encode.bytes = 0
+
+ra.decode = function (buf, offset) {
+  if (!offset) offset = 0
+
+  offset += 2
+  const host = ip.toString(buf, offset, 4)
+  ra.decode.bytes = 6
+  return host
+}
+
+ra.decode.bytes = 0
+
+ra.encodingLength = function () {
+  return 6
+}
+
+const raaaa = exports.aaaa = {}
+
+raaaa.encode = function (host, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(raaaa.encodingLength(host))
+  if (!offset) offset = 0
+
+  buf.writeUInt16BE(16, offset)
+  offset += 2
+  ip.toBuffer(host, buf, offset)
+  raaaa.encode.bytes = 18
+  return buf
+}
+
+raaaa.encode.bytes = 0
+
+raaaa.decode = function (buf, offset) {
+  if (!offset) offset = 0
+
+  offset += 2
+  const host = ip.toString(buf, offset, 16)
+  raaaa.decode.bytes = 18
+  return host
+}
+
+raaaa.decode.bytes = 0
+
+raaaa.encodingLength = function () {
+  return 18
+}
+
+const roption = exports.option = {}
+
+roption.encode = function (option, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(roption.encodingLength(option))
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  const code = optioncodes.toCode(option.code)
+  buf.writeUInt16BE(code, offset)
+  offset += 2
+  if (option.data) {
+    buf.writeUInt16BE(option.data.length, offset)
+    offset += 2
+    option.data.copy(buf, offset)
+    offset += option.data.length
+  } else {
+    switch (code) {
+      // case 3: NSID.  No encode makes sense.
+      // case 5,6,7: Not implementable
+      case 8: // ECS
+        // note: do IP math before calling
+        const spl = option.sourcePrefixLength || 0
+        const fam = option.family || (ip.isV4Format(option.ip) ? 1 : 2)
+        const ipBuf = ip.toBuffer(option.ip)
+        const ipLen = Math.ceil(spl / 8)
+        buf.writeUInt16BE(ipLen + 4, offset)
+        offset += 2
+        buf.writeUInt16BE(fam, offset)
+        offset += 2
+        buf.writeUInt8(spl, offset++)
+        buf.writeUInt8(option.scopePrefixLength || 0, offset++)
+
+        ipBuf.copy(buf, offset, 0, ipLen)
+        offset += ipLen
+        break
+      // case 9: EXPIRE (experimental)
+      // case 10: COOKIE.  No encode makes sense.
+      case 11: // KEEP-ALIVE
+        if (option.timeout) {
+          buf.writeUInt16BE(2, offset)
+          offset += 2
+          buf.writeUInt16BE(option.timeout, offset)
+          offset += 2
+        } else {
+          buf.writeUInt16BE(0, offset)
+          offset += 2
+        }
+        break
+      case 12: // PADDING
+        const len = option.length || 0
+        buf.writeUInt16BE(len, offset)
+        offset += 2
+        buf.fill(0, offset, offset + len)
+        offset += len
+        break
+      // case 13:  CHAIN.  Experimental.
+      case 14: // KEY-TAG
+        const tagsLen = option.tags.length * 2
+        buf.writeUInt16BE(tagsLen, offset)
+        offset += 2
+        for (const tag of option.tags) {
+          buf.writeUInt16BE(tag, offset)
+          offset += 2
+        }
+        break
+      default:
+        throw new Error(`Unknown roption code: ${option.code}`)
+    }
+  }
+
+  roption.encode.bytes = offset - oldOffset
+  return buf
+}
+
+roption.encode.bytes = 0
+
+roption.decode = function (buf, offset) {
+  if (!offset) offset = 0
+  const option = {}
+  option.code = buf.readUInt16BE(offset)
+  option.type = optioncodes.toString(option.code)
+  offset += 2
+  const len = buf.readUInt16BE(offset)
+  offset += 2
+  option.data = buf.slice(offset, offset + len)
+  switch (option.code) {
+    // case 3: NSID.  No decode makes sense.
+    case 8: // ECS
+      option.family = buf.readUInt16BE(offset)
+      offset += 2
+      option.sourcePrefixLength = buf.readUInt8(offset++)
+      option.scopePrefixLength = buf.readUInt8(offset++)
+      const padded = Buffer.alloc((option.family === 1) ? 4 : 16)
+      buf.copy(padded, 0, offset, offset + len - 4)
+      option.ip = ip.toString(padded)
+      break
+    // case 12: Padding.  No decode makes sense.
+    case 11: // KEEP-ALIVE
+      if (len > 0) {
+        option.timeout = buf.readUInt16BE(offset)
+        offset += 2
+      }
+      break
+    case 14:
+      option.tags = []
+      for (let i = 0; i < len; i += 2) {
+        option.tags.push(buf.readUInt16BE(offset))
+        offset += 2
+      }
+    // don't worry about default.  caller will use data if desired
+  }
+
+  roption.decode.bytes = len + 4
+  return option
+}
+
+roption.decode.bytes = 0
+
+roption.encodingLength = function (option) {
+  if (option.data) {
+    return option.data.length + 4
+  }
+  const code = optioncodes.toCode(option.code)
+  switch (code) {
+    case 8: // ECS
+      const spl = option.sourcePrefixLength || 0
+      return Math.ceil(spl / 8) + 8
+    case 11: // KEEP-ALIVE
+      return (typeof option.timeout === 'number') ? 6 : 4
+    case 12: // PADDING
+      return option.length + 4
+    case 14: // KEY-TAG
+      return 4 + (option.tags.length * 2)
+  }
+  throw new Error(`Unknown roption code: ${option.code}`)
+}
+
+const ropt = exports.opt = {}
+
+ropt.encode = function (options, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(ropt.encodingLength(options))
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  const rdlen = encodingLengthList(options, roption)
+  buf.writeUInt16BE(rdlen, offset)
+  offset = encodeList(options, roption, buf, offset + 2)
+
+  ropt.encode.bytes = offset - oldOffset
+  return buf
+}
+
+ropt.encode.bytes = 0
+
+ropt.decode = function (buf, offset) {
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  const options = []
+  let rdlen = buf.readUInt16BE(offset)
+  offset += 2
+  let o = 0
+  while (rdlen > 0) {
+    options[o++] = roption.decode(buf, offset)
+    offset += roption.decode.bytes
+    rdlen -= roption.decode.bytes
+  }
+  ropt.decode.bytes = offset - oldOffset
+  return options
+}
+
+ropt.decode.bytes = 0
+
+ropt.encodingLength = function (options) {
+  return 2 + encodingLengthList(options || [], roption)
+}
+
+const rdnskey = exports.dnskey = {}
+
+rdnskey.PROTOCOL_DNSSEC = 3
+rdnskey.ZONE_KEY = 0x80
+rdnskey.SECURE_ENTRYPOINT = 0x8000
+
+rdnskey.encode = function (key, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(rdnskey.encodingLength(key))
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  const keydata = key.key
+  if (!Buffer.isBuffer(keydata)) {
+    throw new Error('Key must be a Buffer')
+  }
+
+  offset += 2 // Leave space for length
+  buf.writeUInt16BE(key.flags, offset)
+  offset += 2
+  buf.writeUInt8(rdnskey.PROTOCOL_DNSSEC, offset)
+  offset += 1
+  buf.writeUInt8(key.algorithm, offset)
+  offset += 1
+  keydata.copy(buf, offset, 0, keydata.length)
+  offset += keydata.length
+
+  rdnskey.encode.bytes = offset - oldOffset
+  buf.writeUInt16BE(rdnskey.encode.bytes - 2, oldOffset)
+  return buf
+}
+
+rdnskey.encode.bytes = 0
+
+rdnskey.decode = function (buf, offset) {
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  var key = {}
+  var length = buf.readUInt16BE(offset)
+  offset += 2
+  key.flags = buf.readUInt16BE(offset)
+  offset += 2
+  if (buf.readUInt8(offset) !== rdnskey.PROTOCOL_DNSSEC) {
+    throw new Error('Protocol must be 3')
+  }
+  offset += 1
+  key.algorithm = buf.readUInt8(offset)
+  offset += 1
+  key.key = buf.slice(offset, oldOffset + length + 2)
+  offset += key.key.length
+  rdnskey.decode.bytes = offset - oldOffset
+  return key
+}
+
+rdnskey.decode.bytes = 0
+
+rdnskey.encodingLength = function (key) {
+  return 6 + Buffer.byteLength(key.key)
+}
+
+const rrrsig = exports.rrsig = {}
+
+rrrsig.encode = function (sig, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(rrrsig.encodingLength(sig))
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  const signature = sig.signature
+  if (!Buffer.isBuffer(signature)) {
+    throw new Error('Signature must be a Buffer')
+  }
+
+  offset += 2 // Leave space for length
+  buf.writeUInt16BE(types.toType(sig.typeCovered), offset)
+  offset += 2
+  buf.writeUInt8(sig.algorithm, offset)
+  offset += 1
+  buf.writeUInt8(sig.labels, offset)
+  offset += 1
+  buf.writeUInt32BE(sig.originalTTL, offset)
+  offset += 4
+  buf.writeUInt32BE(sig.expiration, offset)
+  offset += 4
+  buf.writeUInt32BE(sig.inception, offset)
+  offset += 4
+  buf.writeUInt16BE(sig.keyTag, offset)
+  offset += 2
+  name.encode(sig.signersName, buf, offset)
+  offset += name.encode.bytes
+  signature.copy(buf, offset, 0, signature.length)
+  offset += signature.length
+
+  rrrsig.encode.bytes = offset - oldOffset
+  buf.writeUInt16BE(rrrsig.encode.bytes - 2, oldOffset)
+  return buf
+}
+
+rrrsig.encode.bytes = 0
+
+rrrsig.decode = function (buf, offset) {
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  var sig = {}
+  var length = buf.readUInt16BE(offset)
+  offset += 2
+  sig.typeCovered = types.toString(buf.readUInt16BE(offset))
+  offset += 2
+  sig.algorithm = buf.readUInt8(offset)
+  offset += 1
+  sig.labels = buf.readUInt8(offset)
+  offset += 1
+  sig.originalTTL = buf.readUInt32BE(offset)
+  offset += 4
+  sig.expiration = buf.readUInt32BE(offset)
+  offset += 4
+  sig.inception = buf.readUInt32BE(offset)
+  offset += 4
+  sig.keyTag = buf.readUInt16BE(offset)
+  offset += 2
+  sig.signersName = name.decode(buf, offset)
+  offset += name.decode.bytes
+  sig.signature = buf.slice(offset, oldOffset + length + 2)
+  offset += sig.signature.length
+  rrrsig.decode.bytes = offset - oldOffset
+  return sig
+}
+
+rrrsig.decode.bytes = 0
+
+rrrsig.encodingLength = function (sig) {
+  return 20 +
+    name.encodingLength(sig.signersName) +
+    Buffer.byteLength(sig.signature)
+}
+
+const rrp = exports.rp = {}
+
+rrp.encode = function (data, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(rrp.encodingLength(data))
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  offset += 2 // Leave space for length
+  name.encode(data.mbox || '.', buf, offset)
+  offset += name.encode.bytes
+  name.encode(data.txt || '.', buf, offset)
+  offset += name.encode.bytes
+  rrp.encode.bytes = offset - oldOffset
+  buf.writeUInt16BE(rrp.encode.bytes - 2, oldOffset)
+  return buf
+}
+
+rrp.encode.bytes = 0
+
+rrp.decode = function (buf, offset) {
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  const data = {}
+  offset += 2
+  data.mbox = name.decode(buf, offset) || '.'
+  offset += name.decode.bytes
+  data.txt = name.decode(buf, offset) || '.'
+  offset += name.decode.bytes
+  rrp.decode.bytes = offset - oldOffset
+  return data
+}
+
+rrp.decode.bytes = 0
+
+rrp.encodingLength = function (data) {
+  return 2 + name.encodingLength(data.mbox || '.') + name.encodingLength(data.txt || '.')
+}
+
+const typebitmap = {}
+
+typebitmap.encode = function (typelist, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(typebitmap.encodingLength(typelist))
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  var typesByWindow = []
+  for (var i = 0; i < typelist.length; i++) {
+    var typeid = types.toType(typelist[i])
+    if (typesByWindow[typeid >> 8] === undefined) {
+      typesByWindow[typeid >> 8] = []
+    }
+    typesByWindow[typeid >> 8][(typeid >> 3) & 0x1F] |= 1 << (7 - (typeid & 0x7))
+  }
+
+  for (i = 0; i < typesByWindow.length; i++) {
+    if (typesByWindow[i] !== undefined) {
+      var windowBuf = Buffer.from(typesByWindow[i])
+      buf.writeUInt8(i, offset)
+      offset += 1
+      buf.writeUInt8(windowBuf.length, offset)
+      offset += 1
+      windowBuf.copy(buf, offset)
+      offset += windowBuf.length
+    }
+  }
+
+  typebitmap.encode.bytes = offset - oldOffset
+  return buf
+}
+
+typebitmap.encode.bytes = 0
+
+typebitmap.decode = function (buf, offset, length) {
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  var typelist = []
+  while (offset - oldOffset < length) {
+    var window = buf.readUInt8(offset)
+    offset += 1
+    var windowLength = buf.readUInt8(offset)
+    offset += 1
+    for (var i = 0; i < windowLength; i++) {
+      var b = buf.readUInt8(offset + i)
+      for (var j = 0; j < 8; j++) {
+        if (b & (1 << (7 - j))) {
+          var typeid = types.toString((window << 8) | (i << 3) | j)
+          typelist.push(typeid)
+        }
+      }
+    }
+    offset += windowLength
+  }
+
+  typebitmap.decode.bytes = offset - oldOffset
+  return typelist
+}
+
+typebitmap.decode.bytes = 0
+
+typebitmap.encodingLength = function (typelist) {
+  var extents = []
+  for (var i = 0; i < typelist.length; i++) {
+    var typeid = types.toType(typelist[i])
+    extents[typeid >> 8] = Math.max(extents[typeid >> 8] || 0, typeid & 0xFF)
+  }
+
+  var len = 0
+  for (i = 0; i < extents.length; i++) {
+    if (extents[i] !== undefined) {
+      len += 2 + Math.ceil((extents[i] + 1) / 8)
+    }
+  }
+
+  return len
+}
+
+const rnsec = exports.nsec = {}
+
+rnsec.encode = function (record, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(rnsec.encodingLength(record))
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  offset += 2 // Leave space for length
+  name.encode(record.nextDomain, buf, offset)
+  offset += name.encode.bytes
+  typebitmap.encode(record.rrtypes, buf, offset)
+  offset += typebitmap.encode.bytes
+
+  rnsec.encode.bytes = offset - oldOffset
+  buf.writeUInt16BE(rnsec.encode.bytes - 2, oldOffset)
+  return buf
+}
+
+rnsec.encode.bytes = 0
+
+rnsec.decode = function (buf, offset) {
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  var record = {}
+  var length = buf.readUInt16BE(offset)
+  offset += 2
+  record.nextDomain = name.decode(buf, offset)
+  offset += name.decode.bytes
+  record.rrtypes = typebitmap.decode(buf, offset, length - (offset - oldOffset))
+  offset += typebitmap.decode.bytes
+
+  rnsec.decode.bytes = offset - oldOffset
+  return record
+}
+
+rnsec.decode.bytes = 0
+
+rnsec.encodingLength = function (record) {
+  return 2 +
+    name.encodingLength(record.nextDomain) +
+    typebitmap.encodingLength(record.rrtypes)
+}
+
+const rnsec3 = exports.nsec3 = {}
+
+rnsec3.encode = function (record, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(rnsec3.encodingLength(record))
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  const salt = record.salt
+  if (!Buffer.isBuffer(salt)) {
+    throw new Error('salt must be a Buffer')
+  }
+
+  const nextDomain = record.nextDomain
+  if (!Buffer.isBuffer(nextDomain)) {
+    throw new Error('nextDomain must be a Buffer')
+  }
+
+  offset += 2 // Leave space for length
+  buf.writeUInt8(record.algorithm, offset)
+  offset += 1
+  buf.writeUInt8(record.flags, offset)
+  offset += 1
+  buf.writeUInt16BE(record.iterations, offset)
+  offset += 2
+  buf.writeUInt8(salt.length, offset)
+  offset += 1
+  salt.copy(buf, offset, 0, salt.length)
+  offset += salt.length
+  buf.writeUInt8(nextDomain.length, offset)
+  offset += 1
+  nextDomain.copy(buf, offset, 0, nextDomain.length)
+  offset += nextDomain.length
+  typebitmap.encode(record.rrtypes, buf, offset)
+  offset += typebitmap.encode.bytes
+
+  rnsec3.encode.bytes = offset - oldOffset
+  buf.writeUInt16BE(rnsec3.encode.bytes - 2, oldOffset)
+  return buf
+}
+
+rnsec3.encode.bytes = 0
+
+rnsec3.decode = function (buf, offset) {
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  var record = {}
+  var length = buf.readUInt16BE(offset)
+  offset += 2
+  record.algorithm = buf.readUInt8(offset)
+  offset += 1
+  record.flags = buf.readUInt8(offset)
+  offset += 1
+  record.iterations = buf.readUInt16BE(offset)
+  offset += 2
+  const saltLength = buf.readUInt8(offset)
+  offset += 1
+  record.salt = buf.slice(offset, offset + saltLength)
+  offset += saltLength
+  const hashLength = buf.readUInt8(offset)
+  offset += 1
+  record.nextDomain = buf.slice(offset, offset + hashLength)
+  offset += hashLength
+  record.rrtypes = typebitmap.decode(buf, offset, length - (offset - oldOffset))
+  offset += typebitmap.decode.bytes
+
+  rnsec3.decode.bytes = offset - oldOffset
+  return record
+}
+
+rnsec3.decode.bytes = 0
+
+rnsec3.encodingLength = function (record) {
+  return 8 +
+    record.salt.length +
+    record.nextDomain.length +
+    typebitmap.encodingLength(record.rrtypes)
+}
+
+const rds = exports.ds = {}
+
+rds.encode = function (digest, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(rds.encodingLength(digest))
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  const digestdata = digest.digest
+  if (!Buffer.isBuffer(digestdata)) {
+    throw new Error('Digest must be a Buffer')
+  }
+
+  offset += 2 // Leave space for length
+  buf.writeUInt16BE(digest.keyTag, offset)
+  offset += 2
+  buf.writeUInt8(digest.algorithm, offset)
+  offset += 1
+  buf.writeUInt8(digest.digestType, offset)
+  offset += 1
+  digestdata.copy(buf, offset, 0, digestdata.length)
+  offset += digestdata.length
+
+  rds.encode.bytes = offset - oldOffset
+  buf.writeUInt16BE(rds.encode.bytes - 2, oldOffset)
+  return buf
+}
+
+rds.encode.bytes = 0
+
+rds.decode = function (buf, offset) {
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  var digest = {}
+  var length = buf.readUInt16BE(offset)
+  offset += 2
+  digest.keyTag = buf.readUInt16BE(offset)
+  offset += 2
+  digest.algorithm = buf.readUInt8(offset)
+  offset += 1
+  digest.digestType = buf.readUInt8(offset)
+  offset += 1
+  digest.digest = buf.slice(offset, oldOffset + length + 2)
+  offset += digest.digest.length
+  rds.decode.bytes = offset - oldOffset
+  return digest
+}
+
+rds.decode.bytes = 0
+
+rds.encodingLength = function (digest) {
+  return 6 + Buffer.byteLength(digest.digest)
+}
+
+const renc = exports.record = function (type) {
+  switch (type.toUpperCase()) {
+    case 'A': return ra
+    case 'PTR': return rptr
+    case 'CNAME': return rcname
+    case 'DNAME': return rdname
+    case 'TXT': return rtxt
+    case 'NULL': return rnull
+    case 'AAAA': return raaaa
+    case 'SRV': return rsrv
+    case 'HINFO': return rhinfo
+    case 'CAA': return rcaa
+    case 'NS': return rns
+    case 'SOA': return rsoa
+    case 'MX': return rmx
+    case 'OPT': return ropt
+    case 'DNSKEY': return rdnskey
+    case 'RRSIG': return rrrsig
+    case 'RP': return rrp
+    case 'NSEC': return rnsec
+    case 'NSEC3': return rnsec3
+    case 'DS': return rds
+  }
+  return runknown
+}
+
+const answer = exports.answer = {}
+
+answer.encode = function (a, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(answer.encodingLength(a))
+  if (!offset) offset = 0
+
+  const oldOffset = offset
+
+  name.encode(a.name, buf, offset)
+  offset += name.encode.bytes
+
+  buf.writeUInt16BE(types.toType(a.type), offset)
+
+  if (a.type.toUpperCase() === 'OPT') {
+    if (a.name !== '.') {
+      throw new Error('OPT name must be root.')
+    }
+    buf.writeUInt16BE(a.udpPayloadSize || 4096, offset + 2)
+    buf.writeUInt8(a.extendedRcode || 0, offset + 4)
+    buf.writeUInt8(a.ednsVersion || 0, offset + 5)
+    buf.writeUInt16BE(a.flags || 0, offset + 6)
+
+    offset += 8
+    ropt.encode(a.options || [], buf, offset)
+    offset += ropt.encode.bytes
+  } else {
+    let klass = classes.toClass(a.class === undefined ? 'IN' : a.class)
+    if (a.flush) klass |= FLUSH_MASK // the 1st bit of the class is the flush bit
+    buf.writeUInt16BE(klass, offset + 2)
+    buf.writeUInt32BE(a.ttl || 0, offset + 4)
+
+    offset += 8
+    const enc = renc(a.type)
+    enc.encode(a.data, buf, offset)
+    offset += enc.encode.bytes
+  }
+
+  answer.encode.bytes = offset - oldOffset
+  return buf
+}
+
+answer.encode.bytes = 0
+
+answer.decode = function (buf, offset) {
+  if (!offset) offset = 0
+
+  const a = {}
+  const oldOffset = offset
+
+  a.name = name.decode(buf, offset)
+  offset += name.decode.bytes
+  a.type = types.toString(buf.readUInt16BE(offset))
+  if (a.type === 'OPT') {
+    a.udpPayloadSize = buf.readUInt16BE(offset + 2)
+    a.extendedRcode = buf.readUInt8(offset + 4)
+    a.ednsVersion = buf.readUInt8(offset + 5)
+    a.flags = buf.readUInt16BE(offset + 6)
+    a.flag_do = ((a.flags >> 15) & 0x1) === 1
+    a.options = ropt.decode(buf, offset + 8)
+    offset += 8 + ropt.decode.bytes
+  } else {
+    const klass = buf.readUInt16BE(offset + 2)
+    a.ttl = buf.readUInt32BE(offset + 4)
+
+    a.class = classes.toString(klass & NOT_FLUSH_MASK)
+    a.flush = !!(klass & FLUSH_MASK)
+
+    const enc = renc(a.type)
+    a.data = enc.decode(buf, offset + 8)
+    offset += 8 + enc.decode.bytes
+  }
+
+  answer.decode.bytes = offset - oldOffset
+  return a
+}
+
+answer.decode.bytes = 0
+
+answer.encodingLength = function (a) {
+  const data = (a.data !== null && a.data !== undefined) ? a.data : a.options
+  return name.encodingLength(a.name) + 8 + renc(a.type).encodingLength(data)
+}
+
+const question = exports.question = {}
+
+question.encode = function (q, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(question.encodingLength(q))
+  if (!offset) offset = 0
+
+  const oldOffset = offset
+
+  name.encode(q.name, buf, offset)
+  offset += name.encode.bytes
+
+  buf.writeUInt16BE(types.toType(q.type), offset)
+  offset += 2
+
+  buf.writeUInt16BE(classes.toClass(q.class === undefined ? 'IN' : q.class), offset)
+  offset += 2
+
+  question.encode.bytes = offset - oldOffset
+  return q
+}
+
+question.encode.bytes = 0
+
+question.decode = function (buf, offset) {
+  if (!offset) offset = 0
+
+  const oldOffset = offset
+  const q = {}
+
+  q.name = name.decode(buf, offset)
+  offset += name.decode.bytes
+
+  q.type = types.toString(buf.readUInt16BE(offset))
+  offset += 2
+
+  q.class = classes.toString(buf.readUInt16BE(offset))
+  offset += 2
+
+  const qu = !!(q.class & QU_MASK)
+  if (qu) q.class &= NOT_QU_MASK
+
+  question.decode.bytes = offset - oldOffset
+  return q
+}
+
+question.decode.bytes = 0
+
+question.encodingLength = function (q) {
+  return name.encodingLength(q.name) + 4
+}
+
+exports.AUTHORITATIVE_ANSWER = 1 << 10
+exports.TRUNCATED_RESPONSE = 1 << 9
+exports.RECURSION_DESIRED = 1 << 8
+exports.RECURSION_AVAILABLE = 1 << 7
+exports.AUTHENTIC_DATA = 1 << 5
+exports.CHECKING_DISABLED = 1 << 4
+exports.DNSSEC_OK = 1 << 15
+
+exports.encode = function (result, buf, offset) {
+  if (!buf) buf = Buffer.allocUnsafe(exports.encodingLength(result))
+  if (!offset) offset = 0
+
+  const oldOffset = offset
+
+  if (!result.questions) result.questions = []
+  if (!result.answers) result.answers = []
+  if (!result.authorities) result.authorities = []
+  if (!result.additionals) result.additionals = []
+
+  header.encode(result, buf, offset)
+  offset += header.encode.bytes
+
+  offset = encodeList(result.questions, question, buf, offset)
+  offset = encodeList(result.answers, answer, buf, offset)
+  offset = encodeList(result.authorities, answer, buf, offset)
+  offset = encodeList(result.additionals, answer, buf, offset)
+
+  exports.encode.bytes = offset - oldOffset
+
+  return buf
+}
+
+exports.encode.bytes = 0
+
+exports.decode = function (buf, offset) {
+  if (!offset) offset = 0
+
+  const oldOffset = offset
+  const result = header.decode(buf, offset)
+  offset += header.decode.bytes
+
+  offset = decodeList(result.questions, question, buf, offset)
+  offset = decodeList(result.answers, answer, buf, offset)
+  offset = decodeList(result.authorities, answer, buf, offset)
+  offset = decodeList(result.additionals, answer, buf, offset)
+
+  exports.decode.bytes = offset - oldOffset
+
+  return result
+}
+
+exports.decode.bytes = 0
+
+exports.encodingLength = function (result) {
+  return header.encodingLength(result) +
+    encodingLengthList(result.questions || [], question) +
+    encodingLengthList(result.answers || [], answer) +
+    encodingLengthList(result.authorities || [], answer) +
+    encodingLengthList(result.additionals || [], answer)
+}
+
+exports.streamEncode = function (result) {
+  const buf = exports.encode(result)
+  const sbuf = Buffer.allocUnsafe(2)
+  sbuf.writeUInt16BE(buf.byteLength)
+  const combine = Buffer.concat([sbuf, buf])
+  exports.streamEncode.bytes = combine.byteLength
+  return combine
+}
+
+exports.streamEncode.bytes = 0
+
+exports.streamDecode = function (sbuf) {
+  const len = sbuf.readUInt16BE(0)
+  if (sbuf.byteLength < len + 2) {
+    // not enough data
+    return null
+  }
+  const result = exports.decode(sbuf.slice(2))
+  exports.streamDecode.bytes = exports.decode.bytes
+  return result
+}
+
+exports.streamDecode.bytes = 0
+
+function encodingLengthList (list, enc) {
+  let len = 0
+  for (let i = 0; i < list.length; i++) len += enc.encodingLength(list[i])
+  return len
+}
+
+function encodeList (list, enc, buf, offset) {
+  for (let i = 0; i < list.length; i++) {
+    enc.encode(list[i], buf, offset)
+    offset += enc.encode.bytes
+  }
+  return offset
+}
+
+function decodeList (list, enc, buf, offset) {
+  for (let i = 0; i < list.length; i++) {
+    list[i] = enc.decode(buf, offset)
+    offset += enc.decode.bytes
+  }
+  return offset
+}
diff --git a/helloworld/node_modules/dns-packet/opcodes.js b/helloworld/node_modules/dns-packet/opcodes.js
new file mode 100755
index 0000000..32b0a1b
--- /dev/null
+++ b/helloworld/node_modules/dns-packet/opcodes.js
@@ -0,0 +1,50 @@
+'use strict'
+
+/*
+ * Traditional DNS header OPCODEs (4-bits) defined by IANA in
+ * https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml#dns-parameters-5
+ */
+
+exports.toString = function (opcode) {
+  switch (opcode) {
+    case 0: return 'QUERY'
+    case 1: return 'IQUERY'
+    case 2: return 'STATUS'
+    case 3: return 'OPCODE_3'
+    case 4: return 'NOTIFY'
+    case 5: return 'UPDATE'
+    case 6: return 'OPCODE_6'
+    case 7: return 'OPCODE_7'
+    case 8: return 'OPCODE_8'
+    case 9: return 'OPCODE_9'
+    case 10: return 'OPCODE_10'
+    case 11: return 'OPCODE_11'
+    case 12: return 'OPCODE_12'
+    case 13: return 'OPCODE_13'
+    case 14: return 'OPCODE_14'
+    case 15: return 'OPCODE_15'
+  }
+  return 'OPCODE_' + opcode
+}
+
+exports.toOpcode = function (code) {
+  switch (code.toUpperCase()) {
+    case 'QUERY': return 0
+    case 'IQUERY': return 1
+    case 'STATUS': return 2
+    case 'OPCODE_3': return 3
+    case 'NOTIFY': return 4
+    case 'UPDATE': return 5
+    case 'OPCODE_6': return 6
+    case 'OPCODE_7': return 7
+    case 'OPCODE_8': return 8
+    case 'OPCODE_9': return 9
+    case 'OPCODE_10': return 10
+    case 'OPCODE_11': return 11
+    case 'OPCODE_12': return 12
+    case 'OPCODE_13': return 13
+    case 'OPCODE_14': return 14
+    case 'OPCODE_15': return 15
+  }
+  return 0
+}
diff --git a/helloworld/node_modules/dns-packet/optioncodes.js b/helloworld/node_modules/dns-packet/optioncodes.js
new file mode 100755
index 0000000..0d66e05
--- /dev/null
+++ b/helloworld/node_modules/dns-packet/optioncodes.js
@@ -0,0 +1,59 @@
+'use strict'
+
+exports.toString = function (type) {
+  switch (type) {
+    // list at
+    // https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml#dns-parameters-11
+    case 1: return 'LLQ'
+    case 2: return 'UL'
+    case 3: return 'NSID'
+    case 5: return 'DAU'
+    case 6: return 'DHU'
+    case 7: return 'N3U'
+    case 8: return 'CLIENT_SUBNET'
+    case 9: return 'EXPIRE'
+    case 10: return 'COOKIE'
+    case 11: return 'TCP_KEEPALIVE'
+    case 12: return 'PADDING'
+    case 13: return 'CHAIN'
+    case 14: return 'KEY_TAG'
+    case 26946: return 'DEVICEID'
+  }
+  if (type < 0) {
+    return null
+  }
+  return `OPTION_${type}`
+}
+
+exports.toCode = function (name) {
+  if (typeof name === 'number') {
+    return name
+  }
+  if (!name) {
+    return -1
+  }
+  switch (name.toUpperCase()) {
+    case 'OPTION_0': return 0
+    case 'LLQ': return 1
+    case 'UL': return 2
+    case 'NSID': return 3
+    case 'OPTION_4': return 4
+    case 'DAU': return 5
+    case 'DHU': return 6
+    case 'N3U': return 7
+    case 'CLIENT_SUBNET': return 8
+    case 'EXPIRE': return 9
+    case 'COOKIE': return 10
+    case 'TCP_KEEPALIVE': return 11
+    case 'PADDING': return 12
+    case 'CHAIN': return 13
+    case 'KEY_TAG': return 14
+    case 'DEVICEID': return 26946
+    case 'OPTION_65535': return 65535
+  }
+  const m = name.match(/_(\d+)$/)
+  if (m) {
+    return parseInt(m[1], 10)
+  }
+  return -1
+}
diff --git a/helloworld/node_modules/dns-packet/rcodes.js b/helloworld/node_modules/dns-packet/rcodes.js
new file mode 100755
index 0000000..0500887
--- /dev/null
+++ b/helloworld/node_modules/dns-packet/rcodes.js
@@ -0,0 +1,50 @@
+'use strict'
+
+/*
+ * Traditional DNS header RCODEs (4-bits) defined by IANA in
+ * https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml
+ */
+
+exports.toString = function (rcode) {
+  switch (rcode) {
+    case 0: return 'NOERROR'
+    case 1: return 'FORMERR'
+    case 2: return 'SERVFAIL'
+    case 3: return 'NXDOMAIN'
+    case 4: return 'NOTIMP'
+    case 5: return 'REFUSED'
+    case 6: return 'YXDOMAIN'
+    case 7: return 'YXRRSET'
+    case 8: return 'NXRRSET'
+    case 9: return 'NOTAUTH'
+    case 10: return 'NOTZONE'
+    case 11: return 'RCODE_11'
+    case 12: return 'RCODE_12'
+    case 13: return 'RCODE_13'
+    case 14: return 'RCODE_14'
+    case 15: return 'RCODE_15'
+  }
+  return 'RCODE_' + rcode
+}
+
+exports.toRcode = function (code) {
+  switch (code.toUpperCase()) {
+    case 'NOERROR': return 0
+    case 'FORMERR': return 1
+    case 'SERVFAIL': return 2
+    case 'NXDOMAIN': return 3
+    case 'NOTIMP': return 4
+    case 'REFUSED': return 5
+    case 'YXDOMAIN': return 6
+    case 'YXRRSET': return 7
+    case 'NXRRSET': return 8
+    case 'NOTAUTH': return 9
+    case 'NOTZONE': return 10
+    case 'RCODE_11': return 11
+    case 'RCODE_12': return 12
+    case 'RCODE_13': return 13
+    case 'RCODE_14': return 14
+    case 'RCODE_15': return 15
+  }
+  return 0
+}
diff --git a/helloworld/node_modules/dns-packet/types.js b/helloworld/node_modules/dns-packet/types.js
new file mode 100755
index 0000000..3cd78bd
--- /dev/null
+++ b/helloworld/node_modules/dns-packet/types.js
@@ -0,0 +1,103 @@
+'use strict'
+
+exports.toString = function (type) {
+  switch (type) {
+    case 1: return 'A'
+    case 10: return 'NULL'
+    case 28: return 'AAAA'
+    case 18: return 'AFSDB'
+    case 42: return 'APL'
+    case 257: return 'CAA'
+    case 60: return 'CDNSKEY'
+    case 59: return 'CDS'
+    case 37: return 'CERT'
+    case 5: return 'CNAME'
+    case 49: return 'DHCID'
+    case 32769: return 'DLV'
+    case 39: return 'DNAME'
+    case 48: return 'DNSKEY'
+    case 43: return 'DS'
+    case 55: return 'HIP'
+    case 13: return 'HINFO'
+    case 45: return 'IPSECKEY'
+    case 25: return 'KEY'
+    case 36: return 'KX'
+    case 29: return 'LOC'
+    case 15: return 'MX'
+    case 35: return 'NAPTR'
+    case 2: return 'NS'
+    case 47: return 'NSEC'
+    case 50: return 'NSEC3'
+    case 51: return 'NSEC3PARAM'
+    case 12: return 'PTR'
+    case 46: return 'RRSIG'
+    case 17: return 'RP'
+    case 24: return 'SIG'
+    case 6: return 'SOA'
+    case 99: return 'SPF'
+    case 33: return 'SRV'
+    case 44: return 'SSHFP'
+    case 32768: return 'TA'
+    case 249: return 'TKEY'
+    case 52: return 'TLSA'
+    case 250: return 'TSIG'
+    case 16: return 'TXT'
+    case 252: return 'AXFR'
+    case 251: return 'IXFR'
+    case 41: return 'OPT'
+    case 255: return 'ANY'
+  }
+  return 'UNKNOWN_' + type
+}
+
+exports.toType = function (name) {
+  switch (name.toUpperCase()) {
+    case 'A': return 1
+    case 'NULL': return 10
+    case 'AAAA': return 28
+    case 'AFSDB': return 18
+    case 'APL': return 42
+    case 'CAA': return 257
+    case 'CDNSKEY': return 60
+    case 'CDS': return 59
+    case 'CERT': return 37
+    case 'CNAME': return 5
+    case 'DHCID': return 49
+    case 'DLV': return 32769
+    case 'DNAME': return 39
+    case 'DNSKEY': return 48
+    case 'DS': return 43
+    case 'HIP': return 55
+    case 'HINFO': return 13
+    case 'IPSECKEY': return 45
+    case 'KEY': return 25
+    case 'KX': return 36
+    case 'LOC': return 29
+    case 'MX': return 15
+    case 'NAPTR': return 35
+    case 'NS': return 2
+    case 'NSEC': return 47
+    case 'NSEC3': return 50
+    case 'NSEC3PARAM': return 51
+    case 'PTR': return 12
+    case 'RRSIG': return 46
+    case 'RP': return 17
+    case 'SIG': return 24
+    case 'SOA': return 6
+    case 'SPF': return 99
+    case 'SRV': return 33
+    case 'SSHFP': return 44
+    case 'TA': return 32768
+    case 'TKEY': return 249
+    case 'TLSA': return 52
+    case 'TSIG': return 250
+    case 'TXT': return 16
+    case 'AXFR': return 252
+    case 'IXFR': return 251
+    case 'OPT': return 41
+    case 'ANY': return 255
+    case '*': return 255
+  }
+  if (name.toUpperCase().startsWith('UNKNOWN_')) return parseInt(name.slice(8))
+  return 0
+}
diff --git a/helloworld/node_modules/dns-socket/CHANGELOG.md b/helloworld/node_modules/dns-socket/CHANGELOG.md
new file mode 100755
index 0000000..39fdcd0
--- /dev/null
+++ b/helloworld/node_modules/dns-socket/CHANGELOG.md
@@ -0,0 +1,13 @@
+# Version 3.0.0 - 2018-02-11
+
+- Feature: The MX record type is now supported.
+- Breaking: The value of TXT records is now always an array of Buffers.
+- Breaking: Renamed the `flag_trunc` and `flag_auth` to `flag_tc` and `flag_aa` to match the names of these in the dns standards.
+
+# Version 2.0.0 - 2018-01-14
+
+- Feature: The SOA record type is now supported.
+- Feature: The NS record type is now supported.
+- Feature: Added header flag properties.
+- Breaking: Node.js 4.0.0 is now required.
+- Breaking: The `class` option has been changed from integer to string.
diff --git a/helloworld/node_modules/dns-socket/LICENSE b/helloworld/node_modules/dns-socket/LICENSE
new file mode 100755
index 0000000..bae9da7
--- /dev/null
+++ b/helloworld/node_modules/dns-socket/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Mathias Buus
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/dns-socket/README.md b/helloworld/node_modules/dns-socket/README.md
new file mode 100755
index 0000000..e85fcac
--- /dev/null
+++ b/helloworld/node_modules/dns-socket/README.md
@@ -0,0 +1,77 @@
+# dns-socket
+[![](https://img.shields.io/npm/v/dns-socket.svg?style=flat)](https://www.npmjs.org/package/dns-socket) [![](https://img.shields.io/npm/dm/dns-socket.svg)](https://www.npmjs.org/package/dns-socket) [![](https://api.travis-ci.org/mafintosh/dns-socket.svg?style=flat)](https://travis-ci.org/mafintosh/dns-socket)
+
+Make low-level DNS requests with retry and timeout support.
+
+```
+npm install dns-socket
+```
+
+## Usage
+
+``` js
+const dnsSocket = require('dns-socket')
+const socket = dnsSocket()
+
+socket.query({
+  questions: [{
+    type: 'A',
+    name: 'google.com'
+  }]
+}, 53, '8.8.8.8', (err, res) => {
+  console.log(err, res) // prints the A record for google.com
+})
+```
+
+## API
+
+#### `var socket = dns([options])`
+
+Create a new DNS socket instance. The `options` object includes:
+
+- `retries` *Number*: Number of total query attempts made during `timeout`. Default: 5.
+- `socket` *Object*: A custom dgram socket. Default: A `'udp4'` socket.
+- `timeout` *Number*: Total timeout in milliseconds after which a `'timeout'` event is emitted. Default: 7500.
+- `maxQueries` *Number*: Each request has an id, this is stored as static sized array. maxQueries is the size of this array, limiting the max number of inflight requests. Default: 10000.
+- `maxRedirects` *Number*: If you query for a single `A` record and get back `CNAME`, the lib will try to follow the chain and resolve the `CNAME` to A. The maximum number of steps is defined by the `maxRedirects`. Default: 0
+- `timeoutChecks` *Number*: Timeouts are checked each `timeoutChecks` ms, for large number of parallel request, you might want to increase this number. Default: `timeout` / 10
+
+#### `socket.on('query', query, port, host)`
+
+Emitted when a dns query is received. The query is a [dns-packet](https://github.com/mafintosh/dns-packet)
+
+#### `socket.on('response', response, port, host)`
+
+Emitted when a dns response is received. The response is a [dns-packet](https://github.com/mafintosh/dns-packet)
+
+#### `var id = socket.query(query, port, [host], [callback])`
+
+Send a dns query. If host is omitted it defaults to `127.0.0.1`. When the remote replies the callback is called with `(err, response, query)` and an response is emitted as well. If the query times out the callback is called with an error.
+The `host` parameter can be an array, during resolve the lib will randomly select one host.
+
+Returns the query id
+
+#### `socket.response(query, response, port, [host])`
+
+Send a response to a query.
+
+#### `socket.cancel(id)`
+
+Cancel a query
+
+#### `socket.bind([port][, address][, onlistening])`
+#### `socket.bind(options, [onlistening])`
+
+Bind the underlying udp socket to a specific port. Takes the same arguments as [socket#bind](https://nodejs.org/docs/latest/api/dgram.html#dgram_socket_bind_port_address_callback).
+
+#### `socket.destroy([onclose])`
+
+Destroy the socket.
+
+#### `socket.inflight`
+
+Number of inflight queries.
+
+## License
+
+MIT
diff --git a/helloworld/node_modules/dns-socket/index.js b/helloworld/node_modules/dns-socket/index.js
new file mode 100755
index 0000000..810fd05
--- /dev/null
+++ b/helloworld/node_modules/dns-socket/index.js
@@ -0,0 +1,287 @@
+'use strict'
+
+const dgram = require('dgram')
+const util = require('util')
+const packet = require('dns-packet')
+const events = require('events')
+
+module.exports = DNS
+
+function DNS (opts) {
+  if (!(this instanceof DNS)) {
+    return new DNS(opts)
+  }
+  if (!opts) {
+    opts = {}
+  }
+
+  events.EventEmitter.call(this)
+
+  const self = this
+
+  this.retries = opts.retries || 5
+  this.timeout = opts.timeout || 7500
+  this.timeoutChecks = opts.timeoutChecks || (this.timeout / 10)
+  this.destroyed = false
+  this.inflight = 0
+  this.maxQueries = opts.maxQueries || 10000
+  this.maxRedirects = opts.maxRedirects || 0
+  this.socket = opts.socket || dgram.createSocket('udp4')
+  this._id = Math.ceil(Math.random() * this.maxQueries)
+  this._queries = new Array(this.maxQueries).fill(null)
+  this._interval = null
+
+  this.socket.on('error', onerror)
+  this.socket.on('message', onmessage)
+  if (isListening(this.socket)) onlistening()
+  else this.socket.on('listening', onlistening)
+  this.socket.on('close', onclose)
+
+  function onerror (err) {
+    if (err.code === 'EACCES' || err.code === 'EADDRINUSE') {
+      self.emit('error', err)
+    } else {
+      self.emit('warning', err)
+    }
+  }
+
+  function onmessage (message, rinfo) {
+    self._onmessage(message, rinfo)
+  }
+
+  function ontimeoutCheck () {
+    self._ontimeoutCheck()
+  }
+
+  function onlistening () {
+    self._interval = setInterval(ontimeoutCheck, self.timeoutChecks)
+    self.emit('listening')
+  }
+
+  function onclose () {
+    self.emit('close')
+  }
+}
+
+util.inherits(DNS, events.EventEmitter)
+
+DNS.RECURSION_DESIRED = DNS.prototype.RECURSION_DESIRED = packet.RECURSION_DESIRED
+DNS.RECURSION_AVAILABLE = DNS.prototype.RECURSION_AVAILABLE = packet.RECURSION_AVAILABLE
+DNS.TRUNCATED_RESPONSE = DNS.prototype.TRUNCATED_RESPONSE = packet.TRUNCATED_RESPONSE
+DNS.AUTHORITATIVE_ANSWER = DNS.prototype.AUTHORITATIVE_ANSWER = packet.AUTHORITATIVE_ANSWER
+DNS.AUTHENTIC_DATA = DNS.prototype.AUTHENTIC_DATA = packet.AUTHENTIC_DATA
+DNS.CHECKING_DISABLED = DNS.prototype.CHECKING_DISABLED = packet.CHECKING_DISABLED
+
+DNS.prototype.address = function () {
+  return this.socket.address()
+}
+
+DNS.prototype.bind = function (...args) {
+  const onlistening = args.length > 0 && args[args.length - 1]
+  if (typeof onlistening === 'function') {
+    this.once('listening', onlistening)
+    this.socket.bind(...args.slice(0, -1))
+  } else {
+    this.socket.bind(...args)
+  }
+}
+
+DNS.prototype.destroy = function (onclose) {
+  if (onclose) {
+    this.once('close', onclose)
+  }
+  if (this.destroyed) {
+    return
+  }
+  this.destroyed = true
+  clearInterval(this._interval)
+  this.socket.close()
+
+  for (let i = 0; i < this.maxQueries; i++) {
+    const q = this._queries[i]
+    if (q) {
+      q.callback(new Error('Socket destroyed'))
+      this._queries[i] = null
+    }
+  }
+  this.inflight = 0
+}
+
+DNS.prototype._ontimeoutCheck = function () {
+  const now = Date.now()
+  for (let i = 0; i < this.maxQueries; i++) {
+    const q = this._queries[i]
+
+    if ((!q) || (now - q.firstTry < (q.tries + 1) * this.timeout)) {
+      continue
+    }
+
+    if (q.tries > this.retries) {
+      this._queries[i] = null
+      this.inflight--
+      this.emit('timeout', q.query, q.port, q.host)
+      q.callback(new Error('Query timed out'))
+      continue
+    }
+    q.tries++
+    this.socket.send(q.buffer, 0, q.buffer.length, q.port, Array.isArray(q.host) ? q.host[Math.floor(q.host.length * Math.random())] : q.host || '127.0.0.1')
+  }
+}
+
+DNS.prototype._shouldRedirect = function (q, result) {
+  // no redirects, no query, more than 1 questions, has any A record answer
+  if (this.maxRedirects <= 0 || (!q) || (q.query.questions.length !== 1) || result.answers.filter(e => e.type === 'A').length > 0) {
+    return false
+  }
+
+  // no more redirects left
+  if (q.redirects > this.maxRedirects) {
+    return false
+  }
+
+  const cnameresults = result.answers.filter(e => e.type === 'CNAME')
+  if (cnameresults.length === 0) {
+    return false
+  }
+
+  const id = this._getNextEmptyId()
+  if (id === -1) {
+    q.callback(new Error('Query array is full!'))
+    return true
+  }
+
+  // replace current query with a new one
+  q.query = {
+    id: id + 1,
+    flags: packet.RECURSION_DESIRED,
+    questions: [{
+      type: 'A',
+      name: cnameresults[0].data
+    }]
+  }
+  q.redirects++
+  q.firstTry = Date.now()
+  q.tries = 0
+  q.buffer = packet.encode(q.query)
+  this._queries[id] = q
+  this.socket.send(q.buffer, 0, q.buffer.length, q.port, Array.isArray(q.host) ? q.host[Math.floor(q.host.length * Math.random())] : q.host || '127.0.0.1')
+  return true
+}
+
+DNS.prototype._onmessage = function (buffer, rinfo) {
+  let message
+
+  try {
+    message = packet.decode(buffer)
+  } catch (err) {
+    this.emit('warning', err)
+    return
+  }
+
+  if (message.type === 'response' && message.id) {
+    const q = this._queries[message.id - 1]
+    if (q) {
+      this._queries[message.id - 1] = null
+      this.inflight--
+
+      if (!this._shouldRedirect(q, message)) {
+        q.callback(null, message)
+      }
+    }
+  }
+
+  this.emit(message.type, message, rinfo.port, rinfo.address)
+}
+
+DNS.prototype.unref = function () {
+  this.socket.unref()
+}
+
+DNS.prototype.ref = function () {
+  this.socket.ref()
+}
+
+DNS.prototype.response = function (query, response, port, host) {
+  if (this.destroyed) {
+    return
+  }
+
+  response.type = 'response'
+  response.id = query.id
+  const buffer = packet.encode(response)
+  this.socket.send(buffer, 0, buffer.length, port, host)
+}
+
+DNS.prototype.cancel = function (id) {
+  const q = this._queries[id]
+  if (!q) return
+
+  this._queries[id] = null
+  this.inflight--
+  q.callback(new Error('Query cancelled'))
+}
+
+DNS.prototype.setRetries = function (id, retries) {
+  const q = this._queries[id]
+  if (!q) return
+  q.firstTry = q.firstTry - this.timeout * (retries - q.retries)
+  q.retries = this.retries - retries
+}
+
+DNS.prototype._getNextEmptyId = function () {
+  // try to find the next unused id
+  let id = -1
+  for (let idtries = this.maxQueries; idtries > 0; idtries--) {
+    const normalizedId = (this._id + idtries) % this.maxQueries
+    if (this._queries[normalizedId] === null) {
+      id = normalizedId
+      this._id = (normalizedId + 1) % this.maxQueries
+      break
+    }
+  }
+  return id
+}
+
+DNS.prototype.query = function (query, port, host, cb) {
+  if (this.destroyed) {
+    cb(new Error('Socket destroyed'))
+    return 0
+  }
+
+  this.inflight++
+  query.type = 'query'
+  query.flags = typeof query.flags === 'number' ? query.flags : DNS.RECURSION_DESIRED
+
+  const id = this._getNextEmptyId()
+  if (id === -1) {
+    cb(new Error('Query array is full!'))
+    return 0
+  }
+
+  query.id = id + 1
+  const buffer = packet.encode(query)
+
+  this._queries[id] = {
+    callback: cb || noop,
+    redirects: 0,
+    firstTry: Date.now(),
+    query: query,
+    tries: 0,
+    buffer: buffer,
+    port: port,
+    host: host
+  }
+  this.socket.send(buffer, 0, buffer.length, port, Array.isArray(host) ? host[Math.floor(host.length * Math.random())] : host || '127.0.0.1')
+  return id
+}
+
+function noop () {
+}
+
+function isListening (socket) {
+  try {
+    return socket.address().port !== 0
+  } catch (err) {
+    return false
+  }
+}
diff --git a/helloworld/node_modules/duplexer3/LICENSE.md b/helloworld/node_modules/duplexer3/LICENSE.md
new file mode 100755
index 0000000..547189a
--- /dev/null
+++ b/helloworld/node_modules/duplexer3/LICENSE.md
@@ -0,0 +1,26 @@
+Copyright (c) 2013, Deoxxa Development
+======================================
+All rights reserved.
+--------------------
+  
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:  
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.  
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.  
+3. Neither the name of Deoxxa Development nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.  
+  
+THIS SOFTWARE IS PROVIDED BY DEOXXA DEVELOPMENT ''AS IS'' AND ANY
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL DEOXXA DEVELOPMENT BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/helloworld/node_modules/duplexer3/README.md b/helloworld/node_modules/duplexer3/README.md
new file mode 100755
index 0000000..9f95ddf
--- /dev/null
+++ b/helloworld/node_modules/duplexer3/README.md
@@ -0,0 +1,115 @@
+# duplexer3 [![Build Status](https://travis-ci.org/floatdrop/duplexer3.svg?branch=master)](https://travis-ci.org/floatdrop/duplexer3) [![Coverage Status](https://coveralls.io/repos/floatdrop/duplexer3/badge.svg?branch=master&service=github)](https://coveralls.io/github/floatdrop/duplexer3?branch=master)
+
+Like [duplexer2](https://github.com/deoxxa/duplexer2) but using Streams3 without readable-stream dependency
+
+```javascript
+var stream = require("stream");
+
+var duplexer3 = require("duplexer3");
+
+var writable = new stream.Writable({objectMode: true}),
+    readable = new stream.Readable({objectMode: true});
+
+writable._write = function _write(input, encoding, done) {
+  if (readable.push(input)) {
+    return done();
+  } else {
+    readable.once("drain", done);
+  }
+};
+
+readable._read = function _read(n) {
+  // no-op
+};
+
+// simulate the readable thing closing after a bit
+writable.once("finish", function() {
+  setTimeout(function() {
+    readable.push(null);
+  }, 500);
+});
+
+var duplex = duplexer3(writable, readable);
+
+duplex.on("data", function(e) {
+  console.log("got data", JSON.stringify(e));
+});
+
+duplex.on("finish", function() {
+  console.log("got finish event");
+});
+
+duplex.on("end", function() {
+  console.log("got end event");
+});
+
+duplex.write("oh, hi there", function() {
+  console.log("finished writing");
+});
+
+duplex.end(function() {
+  console.log("finished ending");
+});
+```
+
+```
+got data "oh, hi there"
+finished writing
+got finish event
+finished ending
+got end event
+```
+
+## Overview
+
+This is a reimplementation of [duplexer](https://www.npmjs.com/package/duplexer) using the
+Streams3 API which is standard in Node as of v4. Everything largely
+works the same.
+
+
+
+## Installation
+
+[Available via `npm`](https://docs.npmjs.com/cli/install):
+
+```
+$ npm i duplexer3
+```
+
+## API
+
+### duplexer3
+
+Creates a new `DuplexWrapper` object, which is the actual class that implements
+most of the fun stuff. All that fun stuff is hidden. DON'T LOOK.
+
+```javascript
+duplexer3([options], writable, readable)
+```
+
+```javascript
+const duplex = duplexer3(new stream.Writable(), new stream.Readable());
+```
+
+Arguments
+
+* __options__ - an object specifying the regular `stream.Duplex` options, as
+  well as the properties described below.
+* __writable__ - a writable stream
+* __readable__ - a readable stream
+
+Options
+
+* __bubbleErrors__ - a boolean value that specifies whether to bubble errors
+  from the underlying readable/writable streams. Default is `true`.
+
+
+## License
+
+3-clause BSD. [A copy](./LICENSE) is included with the source.
+
+## Contact
+
+* GitHub ([deoxxa](http://github.com/deoxxa))
+* Twitter ([@deoxxa](http://twitter.com/deoxxa))
+* Email ([deoxxa@fknsrs.biz](mailto:deoxxa@fknsrs.biz))
diff --git a/helloworld/node_modules/duplexer3/index.js b/helloworld/node_modules/duplexer3/index.js
new file mode 100755
index 0000000..1339ffc
--- /dev/null
+++ b/helloworld/node_modules/duplexer3/index.js
@@ -0,0 +1,76 @@
+"use strict";
+
+var stream = require("stream");
+
+function DuplexWrapper(options, writable, readable) {
+  if (typeof readable === "undefined") {
+    readable = writable;
+    writable = options;
+    options = null;
+  }
+
+  stream.Duplex.call(this, options);
+
+  if (typeof readable.read !== "function") {
+    readable = (new stream.Readable(options)).wrap(readable);
+  }
+
+  this._writable = writable;
+  this._readable = readable;
+  this._waiting = false;
+
+  var self = this;
+
+  writable.once("finish", function() {
+    self.end();
+  });
+
+  this.once("finish", function() {
+    writable.end();
+  });
+
+  readable.on("readable", function() {
+    if (self._waiting) {
+      self._waiting = false;
+      self._read();
+    }
+  });
+
+  readable.once("end", function() {
+    self.push(null);
+  });
+
+  if (!options || typeof options.bubbleErrors === "undefined" || options.bubbleErrors) {
+    writable.on("error", function(err) {
+      self.emit("error", err);
+    });
+
+    readable.on("error", function(err) {
+      self.emit("error", err);
+    });
+  }
+}
+
+DuplexWrapper.prototype = Object.create(stream.Duplex.prototype, {constructor: {value: DuplexWrapper}});
+
+DuplexWrapper.prototype._write = function _write(input, encoding, done) {
+  this._writable.write(input, encoding, done);
+};
+
+DuplexWrapper.prototype._read = function _read() {
+  var buf;
+  var reads = 0;
+  while ((buf = this._readable.read()) !== null) {
+    this.push(buf);
+    reads++;
+  }
+  if (reads === 0) {
+    this._waiting = true;
+  }
+};
+
+module.exports = function duplex2(options, writable, readable) {
+  return new DuplexWrapper(options, writable, readable);
+};
+
+module.exports.DuplexWrapper = DuplexWrapper;
diff --git a/helloworld/node_modules/end-of-stream/LICENSE b/helloworld/node_modules/end-of-stream/LICENSE
new file mode 100755
index 0000000..757562e
--- /dev/null
+++ b/helloworld/node_modules/end-of-stream/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Mathias Buus
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
\ No newline at end of file
diff --git a/helloworld/node_modules/end-of-stream/README.md b/helloworld/node_modules/end-of-stream/README.md
new file mode 100755
index 0000000..f2560c9
--- /dev/null
+++ b/helloworld/node_modules/end-of-stream/README.md
@@ -0,0 +1,52 @@
+# end-of-stream
+
+A node module that calls a callback when a readable/writable/duplex stream has completed or failed.
+
+	npm install end-of-stream
+
+## Usage
+
+Simply pass a stream and a callback to the `eos`.
+Both legacy streams, streams2 and stream3 are supported.
+
+``` js
+var eos = require('end-of-stream');
+
+eos(readableStream, function(err) {
+  // this will be set to the stream instance
+	if (err) return console.log('stream had an error or closed early');
+	console.log('stream has ended', this === readableStream);
+});
+
+eos(writableStream, function(err) {
+	if (err) return console.log('stream had an error or closed early');
+	console.log('stream has finished', this === writableStream);
+});
+
+eos(duplexStream, function(err) {
+	if (err) return console.log('stream had an error or closed early');
+	console.log('stream has ended and finished', this === duplexStream);
+});
+
+eos(duplexStream, {readable:false}, function(err) {
+	if (err) return console.log('stream had an error or closed early');
+	console.log('stream has finished but might still be readable');
+});
+
+eos(duplexStream, {writable:false}, function(err) {
+	if (err) return console.log('stream had an error or closed early');
+	console.log('stream has ended but might still be writable');
+});
+
+eos(readableStream, {error:false}, function(err) {
+	// do not treat emit('error', err) as a end-of-stream
+});
+```
+
+## License
+
+MIT
+
+## Related
+
+`end-of-stream` is part of the [mississippi stream utility collection](https://github.com/maxogden/mississippi) which includes more useful stream modules similar to this one.
diff --git a/helloworld/node_modules/end-of-stream/index.js b/helloworld/node_modules/end-of-stream/index.js
new file mode 100755
index 0000000..be426c2
--- /dev/null
+++ b/helloworld/node_modules/end-of-stream/index.js
@@ -0,0 +1,87 @@
+var once = require('once');
+
+var noop = function() {};
+
+var isRequest = function(stream) {
+	return stream.setHeader && typeof stream.abort === 'function';
+};
+
+var isChildProcess = function(stream) {
+	return stream.stdio && Array.isArray(stream.stdio) && stream.stdio.length === 3
+};
+
+var eos = function(stream, opts, callback) {
+	if (typeof opts === 'function') return eos(stream, null, opts);
+	if (!opts) opts = {};
+
+	callback = once(callback || noop);
+
+	var ws = stream._writableState;
+	var rs = stream._readableState;
+	var readable = opts.readable || (opts.readable !== false && stream.readable);
+	var writable = opts.writable || (opts.writable !== false && stream.writable);
+
+	var onlegacyfinish = function() {
+		if (!stream.writable) onfinish();
+	};
+
+	var onfinish = function() {
+		writable = false;
+		if (!readable) callback.call(stream);
+	};
+
+	var onend = function() {
+		readable = false;
+		if (!writable) callback.call(stream);
+	};
+
+	var onexit = function(exitCode) {
+		callback.call(stream, exitCode ? new Error('exited with error code: ' + exitCode) : null);
+	};
+
+	var onerror = function(err) {
+		callback.call(stream, err);
+	};
+
+	var onclose = function() {
+		if (readable && !(rs && rs.ended)) return callback.call(stream, new Error('premature close'));
+		if (writable && !(ws && ws.ended)) return callback.call(stream, new Error('premature close'));
+	};
+
+	var onrequest = function() {
+		stream.req.on('finish', onfinish);
+	};
+
+	if (isRequest(stream)) {
+		stream.on('complete', onfinish);
+		stream.on('abort', onclose);
+		if (stream.req) onrequest();
+		else stream.on('request', onrequest);
+	} else if (writable && !ws) { // legacy streams
+		stream.on('end', onlegacyfinish);
+		stream.on('close', onlegacyfinish);
+	}
+
+	if (isChildProcess(stream)) stream.on('exit', onexit);
+
+	stream.on('end', onend);
+	stream.on('finish', onfinish);
+	if (opts.error !== false) stream.on('error', onerror);
+	stream.on('close', onclose);
+
+	return function() {
+		stream.removeListener('complete', onfinish);
+		stream.removeListener('abort', onclose);
+		stream.removeListener('request', onrequest);
+		if (stream.req) stream.req.removeListener('finish', onfinish);
+		stream.removeListener('end', onlegacyfinish);
+		stream.removeListener('close', onlegacyfinish);
+		stream.removeListener('finish', onfinish);
+		stream.removeListener('exit', onexit);
+		stream.removeListener('end', onend);
+		stream.removeListener('error', onerror);
+		stream.removeListener('close', onclose);
+	};
+};
+
+module.exports = eos;
diff --git a/helloworld/node_modules/engine.io-client/LICENSE b/helloworld/node_modules/engine.io-client/LICENSE
new file mode 100755
index 0000000..b248ba1
--- /dev/null
+++ b/helloworld/node_modules/engine.io-client/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2015 Automattic <dev@cloudup.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/engine.io-client/README.md b/helloworld/node_modules/engine.io-client/README.md
new file mode 100755
index 0000000..9ab91ca
--- /dev/null
+++ b/helloworld/node_modules/engine.io-client/README.md
@@ -0,0 +1,299 @@
+
+# Engine.IO client
+
+[![Build Status](https://travis-ci.org/socketio/engine.io-client.svg?branch=master)](http://travis-ci.org/socketio/engine.io-client)
+[![NPM version](https://badge.fury.io/js/engine.io-client.svg)](http://badge.fury.io/js/engine.io-client)
+
+This is the client for [Engine.IO](http://github.com/socketio/engine.io),
+the implementation of transport-based cross-browser/cross-device
+bi-directional communication layer for [Socket.IO](http://github.com/socketio/socket.io).
+
+## How to use
+
+### Standalone
+
+You can find an `engine.io.js` file in this repository, which is a
+standalone build you can use as follows:
+
+```html
+<script src="/path/to/engine.io.js"></script>
+<script>
+  // eio = Socket
+  var socket = eio('ws://localhost');
+  socket.on('open', function(){
+    socket.on('message', function(data){});
+    socket.on('close', function(){});
+  });
+</script>
+```
+
+### With browserify
+
+Engine.IO is a commonjs module, which means you can include it by using
+`require` on the browser and package using [browserify](http://browserify.org/):
+
+1. install the client package
+
+    ```bash
+    $ npm install engine.io-client
+    ```
+
+1. write your app code
+
+    ```js
+    var socket = require('engine.io-client')('ws://localhost');
+    socket.on('open', function(){
+      socket.on('message', function(data){});
+      socket.on('close', function(){});
+    });
+    ```
+
+1. build your app bundle
+
+    ```bash
+    $ browserify app.js > bundle.js
+    ```
+
+1. include on your page
+
+    ```html
+    <script src="/path/to/bundle.js"></script>
+    ```
+
+### Sending and receiving binary
+
+```html
+<script src="/path/to/engine.io.js"></script>
+<script>
+  var socket = new eio.Socket('ws://localhost/');
+  socket.binaryType = 'blob';
+  socket.on('open', function () {
+    socket.send(new Int8Array(5));
+    socket.on('message', function(blob){});
+    socket.on('close', function(){ });
+  });
+</script>
+```
+
+### Node.JS
+
+Add `engine.io-client` to your `package.json` and then:
+
+```js
+var socket = require('engine.io-client')('ws://localhost');
+socket.on('open', function(){
+  socket.on('message', function(data){});
+  socket.on('close', function(){});
+});
+```
+
+### Node.js with certificates
+```js
+var opts = {
+  key: fs.readFileSync('test/fixtures/client.key'),
+  cert: fs.readFileSync('test/fixtures/client.crt'),
+  ca: fs.readFileSync('test/fixtures/ca.crt')
+};
+
+var socket = require('engine.io-client')('ws://localhost', opts);
+socket.on('open', function(){
+  socket.on('message', function(data){});
+  socket.on('close', function(){});
+});
+```
+
+### Node.js with extraHeaders
+```js
+var opts = {
+  extraHeaders: {
+    'X-Custom-Header-For-My-Project': 'my-secret-access-token',
+    'Cookie': 'user_session=NI2JlCKF90aE0sJZD9ZzujtdsUqNYSBYxzlTsvdSUe35ZzdtVRGqYFr0kdGxbfc5gUOkR9RGp20GVKza; path=/; expires=Tue, 07-Apr-2015 18:18:08 GMT; secure; HttpOnly'
+  }
+};
+
+var socket = require('engine.io-client')('ws://localhost', opts);
+socket.on('open', function(){
+  socket.on('message', function(data){});
+  socket.on('close', function(){});
+});
+```
+
+## Features
+
+- Lightweight
+- Runs on browser and node.js seamlessly
+- Transports are independent of `Engine`
+  - Easy to debug
+  - Easy to unit test
+- Runs inside HTML5 WebWorker
+- Can send and receive binary data
+  - Receives as ArrayBuffer or Blob when in browser, and Buffer or ArrayBuffer
+    in Node
+  - When XHR2 or WebSockets are used, binary is emitted directly. Otherwise
+    binary is encoded into base64 strings, and decoded when binary types are
+    supported.
+  - With browsers that don't support ArrayBuffer, an object { base64: true,
+    data: dataAsBase64String } is emitted on the `message` event.
+
+## API
+
+### Socket
+
+The client class. Mixes in [Emitter](http://github.com/component/emitter).
+Exposed as `eio` in the browser standalone build.
+
+#### Properties
+
+- `protocol` _(Number)_: protocol revision number
+- `binaryType` _(String)_ : can be set to 'arraybuffer' or 'blob' in browsers,
+  and `buffer` or `arraybuffer` in Node. Blob is only used in browser if it's
+  supported.
+
+#### Events
+
+- `open`
+  - Fired upon successful connection.
+- `message`
+  - Fired when data is received from the server.
+  - **Arguments**
+    - `String` | `ArrayBuffer`: utf-8 encoded data or ArrayBuffer containing
+      binary data
+- `close`
+  - Fired upon disconnection. In compliance with the WebSocket API spec, this event may be
+    fired even if the `open` event does not occur (i.e. due to connection error or `close()`).
+- `error`
+  - Fired when an error occurs.
+- `flush`
+  - Fired upon completing a buffer flush
+- `drain`
+  - Fired after `drain` event of transport if writeBuffer is empty
+- `upgradeError`
+  - Fired if an error occurs with a transport we're trying to upgrade to.
+- `upgrade`
+  - Fired upon upgrade success, after the new transport is set
+- `ping`
+  - Fired upon _flushing_ a ping packet (ie: actual packet write out)
+- `pong`
+  - Fired upon receiving a pong packet.
+
+#### Methods
+
+- **constructor**
+    - Initializes the client
+    - **Parameters**
+      - `String` uri
+      - `Object`: optional, options object
+    - **Options**
+      - `agent` (`http.Agent`): `http.Agent` to use, defaults to `false` (NodeJS only)
+      - `upgrade` (`Boolean`): defaults to true, whether the client should try
+      to upgrade the transport from long-polling to something better.
+      - `forceJSONP` (`Boolean`): forces JSONP for polling transport.
+      - `jsonp` (`Boolean`): determines whether to use JSONP when
+        necessary for polling. If disabled (by settings to false) an error will
+        be emitted (saying "No transports available") if no other transports
+        are available. If another transport is available for opening a
+        connection (e.g. WebSocket) that transport
+        will be used instead.
+      - `forceBase64` (`Boolean`): forces base 64 encoding for polling transport even when XHR2 responseType is available and WebSocket even if the used standard supports binary.
+      - `enablesXDR` (`Boolean`): enables XDomainRequest for IE8 to avoid loading bar flashing with click sound. default to `false` because XDomainRequest has a flaw of not sending cookie.
+      - `timestampRequests` (`Boolean`): whether to add the timestamp with each
+        transport request. Note: polling requests are always stamped unless this
+        option is explicitly set to `false` (`false`)
+      - `timestampParam` (`String`): timestamp parameter (`t`)
+      - `policyPort` (`Number`): port the policy server listens on (`843`)
+      - `path` (`String`): path to connect to, default is `/engine.io`
+      - `transports` (`Array`): a list of transports to try (in order).
+      Defaults to `['polling', 'websocket']`. `Engine`
+      always attempts to connect directly with the first one, provided the
+      feature detection test for it passes.
+      - `transportOptions` (`Object`): hash of options, indexed by transport name, overriding the common options for the given transport
+      - `rememberUpgrade` (`Boolean`): defaults to false.
+        If true and if the previous websocket connection to the server succeeded,
+        the connection attempt will bypass the normal upgrade process and will initially
+        try websocket. A connection attempt following a transport error will use the
+        normal upgrade process. It is recommended you turn this on only when using
+        SSL/TLS connections, or if you know that your network does not block websockets.
+      - `pfx` (`String`|`Buffer`): Certificate, Private key and CA certificates to use for SSL. Can be used in Node.js client environment to manually specify certificate information.
+      - `key` (`String`): Private key to use for SSL. Can be used in Node.js client environment to manually specify certificate information.
+      - `passphrase` (`String`): A string of passphrase for the private key or pfx. Can be used in Node.js client environment to manually specify certificate information.
+      - `cert` (`String`): Public x509 certificate to use. Can be used in Node.js client environment to manually specify certificate information.
+      - `ca` (`String`|`Array`): An authority certificate or array of authority certificates to check the remote host against.. Can be used in Node.js client environment to manually specify certificate information.
+      - `ciphers` (`String`): A string describing the ciphers to use or exclude. Consult the [cipher format list](http://www.openssl.org/docs/apps/ciphers.html#CIPHER_LIST_FORMAT) for details on the format. Can be used in Node.js client environment to manually specify certificate information.
+      - `rejectUnauthorized` (`Boolean`): If true, the server certificate is verified against the list of supplied CAs. An 'error' event is emitted if verification fails. Verification happens at the connection level, before the HTTP request is sent. Can be used in Node.js client environment to manually specify certificate information.
+      - `perMessageDeflate` (`Object|Boolean`): parameters of the WebSocket permessage-deflate extension
+        (see [ws module](https://github.com/einaros/ws) api docs). Set to `false` to disable. (`true`)
+        - `threshold` (`Number`): data is compressed only if the byte size is above this value. This option is ignored on the browser. (`1024`)
+      - `extraHeaders` (`Object`): Headers that will be passed for each request to the server (via xhr-polling and via websockets). These values then can be used during handshake or for special proxies. Can only be used in Node.js client environment.
+      - `onlyBinaryUpgrades` (`Boolean`): whether transport upgrades should be restricted to transports supporting binary data (`false`)
+      - `forceNode` (`Boolean`): Uses NodeJS implementation for websockets - even if there is a native Browser-Websocket available, which is preferred by default over the NodeJS implementation. (This is useful when using hybrid platforms like nw.js or electron) (`false`, NodeJS only)
+      - `localAddress` (`String`): the local IP address to connect to
+    - **Polling-only options**
+      - `requestTimeout` (`Number`): Timeout for xhr-polling requests in milliseconds (`0`)
+    - **Websocket-only options**
+      - `protocols` (`Array`): a list of subprotocols (see [MDN reference](https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#Subprotocols))
+- `send`
+    - Sends a message to the server
+    - **Parameters**
+      - `String` | `ArrayBuffer` | `ArrayBufferView` | `Blob`: data to send
+      - `Object`: optional, options object
+      - `Function`: optional, callback upon `drain`
+    - **Options**
+      - `compress` (`Boolean`): whether to compress sending data. This option is ignored and forced to be `true` on the browser. (`true`)
+- `close`
+    - Disconnects the client.
+
+### Transport
+
+The transport class. Private. _Inherits from EventEmitter_.
+
+#### Events
+
+- `poll`: emitted by polling transports upon starting a new request
+- `pollComplete`: emitted by polling transports upon completing a request
+- `drain`: emitted by polling transports upon a buffer drain
+
+## Tests
+
+`engine.io-client` is used to test
+[engine](http://github.com/socketio/engine.io). Running the `engine.io`
+test suite ensures the client works and vice-versa.
+
+Browser tests are run using [zuul](https://github.com/defunctzombie/zuul). You can
+run the tests locally using the following command.
+
+```
+./node_modules/.bin/zuul --local 8080 -- test/index.js
+```
+
+Additionally, `engine.io-client` has a standalone test suite you can run
+with `make test` which will run node.js and browser tests. You must have zuul setup with
+a saucelabs account.
+
+## Support
+
+The support channels for `engine.io-client` are the same as `socket.io`:
+  - irc.freenode.net **#socket.io**
+  - [Google Groups](http://groups.google.com/group/socket_io)
+  - [Website](http://socket.io)
+
+## Development
+
+To contribute patches, run tests or benchmarks, make sure to clone the
+repository:
+
+```bash
+git clone git://github.com/socketio/engine.io-client.git
+```
+
+Then:
+
+```bash
+cd engine.io-client
+npm install
+```
+
+See the `Tests` section above for how to run tests before submitting any patches.
+
+## License
+
+MIT - Copyright (c) 2014 Automattic, Inc.
diff --git a/helloworld/node_modules/engine.io-client/engine.io.js b/helloworld/node_modules/engine.io-client/engine.io.js
new file mode 100755
index 0000000..1c70c23
--- /dev/null
+++ b/helloworld/node_modules/engine.io-client/engine.io.js
@@ -0,0 +1,4647 @@
+(function webpackUniversalModuleDefinition(root, factory) {
+	if(typeof exports === 'object' && typeof module === 'object')
+		module.exports = factory();
+	else if(typeof define === 'function' && define.amd)
+		define([], factory);
+	else if(typeof exports === 'object')
+		exports["eio"] = factory();
+	else
+		root["eio"] = factory();
+})(this, function() {
+return /******/ (function(modules) { // webpackBootstrap
+/******/ 	// The module cache
+/******/ 	var installedModules = {};
+
+/******/ 	// The require function
+/******/ 	function __webpack_require__(moduleId) {
+
+/******/ 		// Check if module is in cache
+/******/ 		if(installedModules[moduleId])
+/******/ 			return installedModules[moduleId].exports;
+
+/******/ 		// Create a new module (and put it into the cache)
+/******/ 		var module = installedModules[moduleId] = {
+/******/ 			exports: {},
+/******/ 			id: moduleId,
+/******/ 			loaded: false
+/******/ 		};
+
+/******/ 		// Execute the module function
+/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+
+/******/ 		// Flag the module as loaded
+/******/ 		module.loaded = true;
+
+/******/ 		// Return the exports of the module
+/******/ 		return module.exports;
+/******/ 	}
+
+
+/******/ 	// expose the modules object (__webpack_modules__)
+/******/ 	__webpack_require__.m = modules;
+
+/******/ 	// expose the module cache
+/******/ 	__webpack_require__.c = installedModules;
+
+/******/ 	// __webpack_public_path__
+/******/ 	__webpack_require__.p = "";
+
+/******/ 	// Load entry module and return exports
+/******/ 	return __webpack_require__(0);
+/******/ })
+/************************************************************************/
+/******/ ([
+/* 0 */
+/***/ function(module, exports, __webpack_require__) {
+
+	'use strict';
+
+	module.exports = __webpack_require__(1);
+
+	/**
+	 * Exports parser
+	 *
+	 * @api public
+	 *
+	 */
+	module.exports.parser = __webpack_require__(8);
+
+/***/ },
+/* 1 */
+/***/ function(module, exports, __webpack_require__) {
+
+	'use strict';
+
+	var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+
+	/**
+	 * Module dependencies.
+	 */
+
+	var transports = __webpack_require__(2);
+	var Emitter = __webpack_require__(17);
+	var debug = __webpack_require__(21)('engine.io-client:socket');
+	var index = __webpack_require__(28);
+	var parser = __webpack_require__(8);
+	var parseuri = __webpack_require__(29);
+	var parseqs = __webpack_require__(18);
+
+	/**
+	 * Module exports.
+	 */
+
+	module.exports = Socket;
+
+	/**
+	 * Socket constructor.
+	 *
+	 * @param {String|Object} uri or options
+	 * @param {Object} options
+	 * @api public
+	 */
+
+	function Socket(uri, opts) {
+	  if (!(this instanceof Socket)) return new Socket(uri, opts);
+
+	  opts = opts || {};
+
+	  if (uri && 'object' === (typeof uri === 'undefined' ? 'undefined' : _typeof(uri))) {
+	    opts = uri;
+	    uri = null;
+	  }
+
+	  if (uri) {
+	    uri = parseuri(uri);
+	    opts.hostname = uri.host;
+	    opts.secure = uri.protocol === 'https' || uri.protocol === 'wss';
+	    opts.port = uri.port;
+	    if (uri.query) opts.query = uri.query;
+	  } else if (opts.host) {
+	    opts.hostname = parseuri(opts.host).host;
+	  }
+
+	  this.secure = null != opts.secure ? opts.secure : typeof location !== 'undefined' && 'https:' === location.protocol;
+
+	  if (opts.hostname && !opts.port) {
+	    // if no port is specified manually, use the protocol default
+	    opts.port = this.secure ? '443' : '80';
+	  }
+
+	  this.agent = opts.agent || false;
+	  this.hostname = opts.hostname || (typeof location !== 'undefined' ? location.hostname : 'localhost');
+	  this.port = opts.port || (typeof location !== 'undefined' && location.port ? location.port : this.secure ? 443 : 80);
+	  this.query = opts.query || {};
+	  if ('string' === typeof this.query) this.query = parseqs.decode(this.query);
+	  this.upgrade = false !== opts.upgrade;
+	  this.path = (opts.path || '/engine.io').replace(/\/$/, '') + '/';
+	  this.forceJSONP = !!opts.forceJSONP;
+	  this.jsonp = false !== opts.jsonp;
+	  this.forceBase64 = !!opts.forceBase64;
+	  this.enablesXDR = !!opts.enablesXDR;
+	  this.timestampParam = opts.timestampParam || 't';
+	  this.timestampRequests = opts.timestampRequests;
+	  this.transports = opts.transports || ['polling', 'websocket'];
+	  this.transportOptions = opts.transportOptions || {};
+	  this.readyState = '';
+	  this.writeBuffer = [];
+	  this.prevBufferLen = 0;
+	  this.policyPort = opts.policyPort || 843;
+	  this.rememberUpgrade = opts.rememberUpgrade || false;
+	  this.binaryType = null;
+	  this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;
+	  this.perMessageDeflate = false !== opts.perMessageDeflate ? opts.perMessageDeflate || {} : false;
+
+	  if (true === this.perMessageDeflate) this.perMessageDeflate = {};
+	  if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) {
+	    this.perMessageDeflate.threshold = 1024;
+	  }
+
+	  // SSL options for Node.js client
+	  this.pfx = opts.pfx || null;
+	  this.key = opts.key || null;
+	  this.passphrase = opts.passphrase || null;
+	  this.cert = opts.cert || null;
+	  this.ca = opts.ca || null;
+	  this.ciphers = opts.ciphers || null;
+	  this.rejectUnauthorized = opts.rejectUnauthorized === undefined ? true : opts.rejectUnauthorized;
+	  this.forceNode = !!opts.forceNode;
+
+	  // detect ReactNative environment
+	  this.isReactNative = typeof navigator !== 'undefined' && typeof navigator.product === 'string' && navigator.product.toLowerCase() === 'reactnative';
+
+	  // other options for Node.js or ReactNative client
+	  if (typeof self === 'undefined' || this.isReactNative) {
+	    if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) {
+	      this.extraHeaders = opts.extraHeaders;
+	    }
+
+	    if (opts.localAddress) {
+	      this.localAddress = opts.localAddress;
+	    }
+	  }
+
+	  // set on handshake
+	  this.id = null;
+	  this.upgrades = null;
+	  this.pingInterval = null;
+	  this.pingTimeout = null;
+
+	  // set on heartbeat
+	  this.pingIntervalTimer = null;
+	  this.pingTimeoutTimer = null;
+
+	  this.open();
+	}
+
+	Socket.priorWebsocketSuccess = false;
+
+	/**
+	 * Mix in `Emitter`.
+	 */
+
+	Emitter(Socket.prototype);
+
+	/**
+	 * Protocol version.
+	 *
+	 * @api public
+	 */
+
+	Socket.protocol = parser.protocol; // this is an int
+
+	/**
+	 * Expose deps for legacy compatibility
+	 * and standalone browser access.
+	 */
+
+	Socket.Socket = Socket;
+	Socket.Transport = __webpack_require__(7);
+	Socket.transports = __webpack_require__(2);
+	Socket.parser = __webpack_require__(8);
+
+	/**
+	 * Creates transport of the given type.
+	 *
+	 * @param {String} transport name
+	 * @return {Transport}
+	 * @api private
+	 */
+
+	Socket.prototype.createTransport = function (name) {
+	  debug('creating transport "%s"', name);
+	  var query = clone(this.query);
+
+	  // append engine.io protocol identifier
+	  query.EIO = parser.protocol;
+
+	  // transport name
+	  query.transport = name;
+
+	  // per-transport options
+	  var options = this.transportOptions[name] || {};
+
+	  // session id if we already have one
+	  if (this.id) query.sid = this.id;
+
+	  var transport = new transports[name]({
+	    query: query,
+	    socket: this,
+	    agent: options.agent || this.agent,
+	    hostname: options.hostname || this.hostname,
+	    port: options.port || this.port,
+	    secure: options.secure || this.secure,
+	    path: options.path || this.path,
+	    forceJSONP: options.forceJSONP || this.forceJSONP,
+	    jsonp: options.jsonp || this.jsonp,
+	    forceBase64: options.forceBase64 || this.forceBase64,
+	    enablesXDR: options.enablesXDR || this.enablesXDR,
+	    timestampRequests: options.timestampRequests || this.timestampRequests,
+	    timestampParam: options.timestampParam || this.timestampParam,
+	    policyPort: options.policyPort || this.policyPort,
+	    pfx: options.pfx || this.pfx,
+	    key: options.key || this.key,
+	    passphrase: options.passphrase || this.passphrase,
+	    cert: options.cert || this.cert,
+	    ca: options.ca || this.ca,
+	    ciphers: options.ciphers || this.ciphers,
+	    rejectUnauthorized: options.rejectUnauthorized || this.rejectUnauthorized,
+	    perMessageDeflate: options.perMessageDeflate || this.perMessageDeflate,
+	    extraHeaders: options.extraHeaders || this.extraHeaders,
+	    forceNode: options.forceNode || this.forceNode,
+	    localAddress: options.localAddress || this.localAddress,
+	    requestTimeout: options.requestTimeout || this.requestTimeout,
+	    protocols: options.protocols || void 0,
+	    isReactNative: this.isReactNative
+	  });
+
+	  return transport;
+	};
+
+	function clone(obj) {
+	  var o = {};
+	  for (var i in obj) {
+	    if (obj.hasOwnProperty(i)) {
+	      o[i] = obj[i];
+	    }
+	  }
+	  return o;
+	}
+
+	/**
+	 * Initializes transport to use and starts probe.
+	 *
+	 * @api private
+	 */
+	Socket.prototype.open = function () {
+	  var transport;
+	  if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') !== -1) {
+	    transport = 'websocket';
+	  } else if (0 === this.transports.length) {
+	    // Emit error on next tick so it can be listened to
+	    var self = this;
+	    setTimeout(function () {
+	      self.emit('error', 'No transports available');
+	    }, 0);
+	    return;
+	  } else {
+	    transport = this.transports[0];
+	  }
+	  this.readyState = 'opening';
+
+	  // Retry with the next transport if the transport is disabled (jsonp: false)
+	  try {
+	    transport = this.createTransport(transport);
+	  } catch (e) {
+	    this.transports.shift();
+	    this.open();
+	    return;
+	  }
+
+	  transport.open();
+	  this.setTransport(transport);
+	};
+
+	/**
+	 * Sets the current transport. Disables the existing one (if any).
+	 *
+	 * @api private
+	 */
+
+	Socket.prototype.setTransport = function (transport) {
+	  debug('setting transport %s', transport.name);
+	  var self = this;
+
+	  if (this.transport) {
+	    debug('clearing existing transport %s', this.transport.name);
+	    this.transport.removeAllListeners();
+	  }
+
+	  // set up transport
+	  this.transport = transport;
+
+	  // set up transport listeners
+	  transport.on('drain', function () {
+	    self.onDrain();
+	  }).on('packet', function (packet) {
+	    self.onPacket(packet);
+	  }).on('error', function (e) {
+	    self.onError(e);
+	  }).on('close', function () {
+	    self.onClose('transport close');
+	  });
+	};
+
+	/**
+	 * Probes a transport.
+	 *
+	 * @param {String} transport name
+	 * @api private
+	 */
+
+	Socket.prototype.probe = function (name) {
+	  debug('probing transport "%s"', name);
+	  var transport = this.createTransport(name, { probe: 1 });
+	  var failed = false;
+	  var self = this;
+
+	  Socket.priorWebsocketSuccess = false;
+
+	  function onTransportOpen() {
+	    if (self.onlyBinaryUpgrades) {
+	      var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;
+	      failed = failed || upgradeLosesBinary;
+	    }
+	    if (failed) return;
+
+	    debug('probe transport "%s" opened', name);
+	    transport.send([{ type: 'ping', data: 'probe' }]);
+	    transport.once('packet', function (msg) {
+	      if (failed) return;
+	      if ('pong' === msg.type && 'probe' === msg.data) {
+	        debug('probe transport "%s" pong', name);
+	        self.upgrading = true;
+	        self.emit('upgrading', transport);
+	        if (!transport) return;
+	        Socket.priorWebsocketSuccess = 'websocket' === transport.name;
+
+	        debug('pausing current transport "%s"', self.transport.name);
+	        self.transport.pause(function () {
+	          if (failed) return;
+	          if ('closed' === self.readyState) return;
+	          debug('changing transport and sending upgrade packet');
+
+	          cleanup();
+
+	          self.setTransport(transport);
+	          transport.send([{ type: 'upgrade' }]);
+	          self.emit('upgrade', transport);
+	          transport = null;
+	          self.upgrading = false;
+	          self.flush();
+	        });
+	      } else {
+	        debug('probe transport "%s" failed', name);
+	        var err = new Error('probe error');
+	        err.transport = transport.name;
+	        self.emit('upgradeError', err);
+	      }
+	    });
+	  }
+
+	  function freezeTransport() {
+	    if (failed) return;
+
+	    // Any callback called by transport should be ignored since now
+	    failed = true;
+
+	    cleanup();
+
+	    transport.close();
+	    transport = null;
+	  }
+
+	  // Handle any error that happens while probing
+	  function onerror(err) {
+	    var error = new Error('probe error: ' + err);
+	    error.transport = transport.name;
+
+	    freezeTransport();
+
+	    debug('probe transport "%s" failed because of error: %s', name, err);
+
+	    self.emit('upgradeError', error);
+	  }
+
+	  function onTransportClose() {
+	    onerror('transport closed');
+	  }
+
+	  // When the socket is closed while we're probing
+	  function onclose() {
+	    onerror('socket closed');
+	  }
+
+	  // When the socket is upgraded while we're probing
+	  function onupgrade(to) {
+	    if (transport && to.name !== transport.name) {
+	      debug('"%s" works - aborting "%s"', to.name, transport.name);
+	      freezeTransport();
+	    }
+	  }
+
+	  // Remove all listeners on the transport and on self
+	  function cleanup() {
+	    transport.removeListener('open', onTransportOpen);
+	    transport.removeListener('error', onerror);
+	    transport.removeListener('close', onTransportClose);
+	    self.removeListener('close', onclose);
+	    self.removeListener('upgrading', onupgrade);
+	  }
+
+	  transport.once('open', onTransportOpen);
+	  transport.once('error', onerror);
+	  transport.once('close', onTransportClose);
+
+	  this.once('close', onclose);
+	  this.once('upgrading', onupgrade);
+
+	  transport.open();
+	};
+
+	/**
+	 * Called when connection is deemed open.
+	 *
+	 * @api public
+	 */
+
+	Socket.prototype.onOpen = function () {
+	  debug('socket open');
+	  this.readyState = 'open';
+	  Socket.priorWebsocketSuccess = 'websocket' === this.transport.name;
+	  this.emit('open');
+	  this.flush();
+
+	  // we check for `readyState` in case an `open`
+	  // listener already closed the socket
+	  if ('open' === this.readyState && this.upgrade && this.transport.pause) {
+	    debug('starting upgrade probes');
+	    for (var i = 0, l = this.upgrades.length; i < l; i++) {
+	      this.probe(this.upgrades[i]);
+	    }
+	  }
+	};
+
+	/**
+	 * Handles a packet.
+	 *
+	 * @api private
+	 */
+
+	Socket.prototype.onPacket = function (packet) {
+	  if ('opening' === this.readyState || 'open' === this.readyState || 'closing' === this.readyState) {
+	    debug('socket receive: type "%s", data "%s"', packet.type, packet.data);
+
+	    this.emit('packet', packet);
+
+	    // Socket is live - any packet counts
+	    this.emit('heartbeat');
+
+	    switch (packet.type) {
+	      case 'open':
+	        this.onHandshake(JSON.parse(packet.data));
+	        break;
+
+	      case 'pong':
+	        this.setPing();
+	        this.emit('pong');
+	        break;
+
+	      case 'error':
+	        var err = new Error('server error');
+	        err.code = packet.data;
+	        this.onError(err);
+	        break;
+
+	      case 'message':
+	        this.emit('data', packet.data);
+	        this.emit('message', packet.data);
+	        break;
+	    }
+	  } else {
+	    debug('packet received with socket readyState "%s"', this.readyState);
+	  }
+	};
+
+	/**
+	 * Called upon handshake completion.
+	 *
+	 * @param {Object} handshake obj
+	 * @api private
+	 */
+
+	Socket.prototype.onHandshake = function (data) {
+	  this.emit('handshake', data);
+	  this.id = data.sid;
+	  this.transport.query.sid = data.sid;
+	  this.upgrades = this.filterUpgrades(data.upgrades);
+	  this.pingInterval = data.pingInterval;
+	  this.pingTimeout = data.pingTimeout;
+	  this.onOpen();
+	  // In case open handler closes socket
+	  if ('closed' === this.readyState) return;
+	  this.setPing();
+
+	  // Prolong liveness of socket on heartbeat
+	  this.removeListener('heartbeat', this.onHeartbeat);
+	  this.on('heartbeat', this.onHeartbeat);
+	};
+
+	/**
+	 * Resets ping timeout.
+	 *
+	 * @api private
+	 */
+
+	Socket.prototype.onHeartbeat = function (timeout) {
+	  clearTimeout(this.pingTimeoutTimer);
+	  var self = this;
+	  self.pingTimeoutTimer = setTimeout(function () {
+	    if ('closed' === self.readyState) return;
+	    self.onClose('ping timeout');
+	  }, timeout || self.pingInterval + self.pingTimeout);
+	};
+
+	/**
+	 * Pings server every `this.pingInterval` and expects response
+	 * within `this.pingTimeout` or closes connection.
+	 *
+	 * @api private
+	 */
+
+	Socket.prototype.setPing = function () {
+	  var self = this;
+	  clearTimeout(self.pingIntervalTimer);
+	  self.pingIntervalTimer = setTimeout(function () {
+	    debug('writing ping packet - expecting pong within %sms', self.pingTimeout);
+	    self.ping();
+	    self.onHeartbeat(self.pingTimeout);
+	  }, self.pingInterval);
+	};
+
+	/**
+	* Sends a ping packet.
+	*
+	* @api private
+	*/
+
+	Socket.prototype.ping = function () {
+	  var self = this;
+	  this.sendPacket('ping', function () {
+	    self.emit('ping');
+	  });
+	};
+
+	/**
+	 * Called on `drain` event
+	 *
+	 * @api private
+	 */
+
+	Socket.prototype.onDrain = function () {
+	  this.writeBuffer.splice(0, this.prevBufferLen);
+
+	  // setting prevBufferLen = 0 is very important
+	  // for example, when upgrading, upgrade packet is sent over,
+	  // and a nonzero prevBufferLen could cause problems on `drain`
+	  this.prevBufferLen = 0;
+
+	  if (0 === this.writeBuffer.length) {
+	    this.emit('drain');
+	  } else {
+	    this.flush();
+	  }
+	};
+
+	/**
+	 * Flush write buffers.
+	 *
+	 * @api private
+	 */
+
+	Socket.prototype.flush = function () {
+	  if ('closed' !== this.readyState && this.transport.writable && !this.upgrading && this.writeBuffer.length) {
+	    debug('flushing %d packets in socket', this.writeBuffer.length);
+	    this.transport.send(this.writeBuffer);
+	    // keep track of current length of writeBuffer
+	    // splice writeBuffer and callbackBuffer on `drain`
+	    this.prevBufferLen = this.writeBuffer.length;
+	    this.emit('flush');
+	  }
+	};
+
+	/**
+	 * Sends a message.
+	 *
+	 * @param {String} message.
+	 * @param {Function} callback function.
+	 * @param {Object} options.
+	 * @return {Socket} for chaining.
+	 * @api public
+	 */
+
+	Socket.prototype.write = Socket.prototype.send = function (msg, options, fn) {
+	  this.sendPacket('message', msg, options, fn);
+	  return this;
+	};
+
+	/**
+	 * Sends a packet.
+	 *
+	 * @param {String} packet type.
+	 * @param {String} data.
+	 * @param {Object} options.
+	 * @param {Function} callback function.
+	 * @api private
+	 */
+
+	Socket.prototype.sendPacket = function (type, data, options, fn) {
+	  if ('function' === typeof data) {
+	    fn = data;
+	    data = undefined;
+	  }
+
+	  if ('function' === typeof options) {
+	    fn = options;
+	    options = null;
+	  }
+
+	  if ('closing' === this.readyState || 'closed' === this.readyState) {
+	    return;
+	  }
+
+	  options = options || {};
+	  options.compress = false !== options.compress;
+
+	  var packet = {
+	    type: type,
+	    data: data,
+	    options: options
+	  };
+	  this.emit('packetCreate', packet);
+	  this.writeBuffer.push(packet);
+	  if (fn) this.once('flush', fn);
+	  this.flush();
+	};
+
+	/**
+	 * Closes the connection.
+	 *
+	 * @api private
+	 */
+
+	Socket.prototype.close = function () {
+	  if ('opening' === this.readyState || 'open' === this.readyState) {
+	    this.readyState = 'closing';
+
+	    var self = this;
+
+	    if (this.writeBuffer.length) {
+	      this.once('drain', function () {
+	        if (this.upgrading) {
+	          waitForUpgrade();
+	        } else {
+	          close();
+	        }
+	      });
+	    } else if (this.upgrading) {
+	      waitForUpgrade();
+	    } else {
+	      close();
+	    }
+	  }
+
+	  function close() {
+	    self.onClose('forced close');
+	    debug('socket closing - telling transport to close');
+	    self.transport.close();
+	  }
+
+	  function cleanupAndClose() {
+	    self.removeListener('upgrade', cleanupAndClose);
+	    self.removeListener('upgradeError', cleanupAndClose);
+	    close();
+	  }
+
+	  function waitForUpgrade() {
+	    // wait for upgrade to finish since we can't send packets while pausing a transport
+	    self.once('upgrade', cleanupAndClose);
+	    self.once('upgradeError', cleanupAndClose);
+	  }
+
+	  return this;
+	};
+
+	/**
+	 * Called upon transport error
+	 *
+	 * @api private
+	 */
+
+	Socket.prototype.onError = function (err) {
+	  debug('socket error %j', err);
+	  Socket.priorWebsocketSuccess = false;
+	  this.emit('error', err);
+	  this.onClose('transport error', err);
+	};
+
+	/**
+	 * Called upon transport close.
+	 *
+	 * @api private
+	 */
+
+	Socket.prototype.onClose = function (reason, desc) {
+	  if ('opening' === this.readyState || 'open' === this.readyState || 'closing' === this.readyState) {
+	    debug('socket close with reason: "%s"', reason);
+	    var self = this;
+
+	    // clear timers
+	    clearTimeout(this.pingIntervalTimer);
+	    clearTimeout(this.pingTimeoutTimer);
+
+	    // stop event from firing again for transport
+	    this.transport.removeAllListeners('close');
+
+	    // ensure transport won't stay open
+	    this.transport.close();
+
+	    // ignore further transport communication
+	    this.transport.removeAllListeners();
+
+	    // set ready state
+	    this.readyState = 'closed';
+
+	    // clear session id
+	    this.id = null;
+
+	    // emit close event
+	    this.emit('close', reason, desc);
+
+	    // clean buffers after, so users can still
+	    // grab the buffers on `close` event
+	    self.writeBuffer = [];
+	    self.prevBufferLen = 0;
+	  }
+	};
+
+	/**
+	 * Filters upgrades, returning only those matching client transports.
+	 *
+	 * @param {Array} server upgrades
+	 * @api private
+	 *
+	 */
+
+	Socket.prototype.filterUpgrades = function (upgrades) {
+	  var filteredUpgrades = [];
+	  for (var i = 0, j = upgrades.length; i < j; i++) {
+	    if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);
+	  }
+	  return filteredUpgrades;
+	};
+
+/***/ },
+/* 2 */
+/***/ function(module, exports, __webpack_require__) {
+
+	'use strict';
+
+	/**
+	 * Module dependencies
+	 */
+
+	var XMLHttpRequest = __webpack_require__(3);
+	var XHR = __webpack_require__(5);
+	var JSONP = __webpack_require__(25);
+	var websocket = __webpack_require__(26);
+
+	/**
+	 * Export transports.
+	 */
+
+	exports.polling = polling;
+	exports.websocket = websocket;
+
+	/**
+	 * Polling transport polymorphic constructor.
+	 * Decides on xhr vs jsonp based on feature detection.
+	 *
+	 * @api private
+	 */
+
+	function polling(opts) {
+	  var xhr;
+	  var xd = false;
+	  var xs = false;
+	  var jsonp = false !== opts.jsonp;
+
+	  if (typeof location !== 'undefined') {
+	    var isSSL = 'https:' === location.protocol;
+	    var port = location.port;
+
+	    // some user agents have empty `location.port`
+	    if (!port) {
+	      port = isSSL ? 443 : 80;
+	    }
+
+	    xd = opts.hostname !== location.hostname || port !== opts.port;
+	    xs = opts.secure !== isSSL;
+	  }
+
+	  opts.xdomain = xd;
+	  opts.xscheme = xs;
+	  xhr = new XMLHttpRequest(opts);
+
+	  if ('open' in xhr && !opts.forceJSONP) {
+	    return new XHR(opts);
+	  } else {
+	    if (!jsonp) throw new Error('JSONP disabled');
+	    return new JSONP(opts);
+	  }
+	}
+
+/***/ },
+/* 3 */
+/***/ function(module, exports, __webpack_require__) {
+
+	'use strict';
+
+	// browser shim for xmlhttprequest module
+
+	var hasCORS = __webpack_require__(4);
+
+	module.exports = function (opts) {
+	  var xdomain = opts.xdomain;
+
+	  // scheme must be same when usign XDomainRequest
+	  // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx
+	  var xscheme = opts.xscheme;
+
+	  // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.
+	  // https://github.com/Automattic/engine.io-client/pull/217
+	  var enablesXDR = opts.enablesXDR;
+
+	  // XMLHttpRequest can be disabled on IE
+	  try {
+	    if ('undefined' !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {
+	      return new XMLHttpRequest();
+	    }
+	  } catch (e) {}
+
+	  // Use XDomainRequest for IE8 if enablesXDR is true
+	  // because loading bar keeps flashing when using jsonp-polling
+	  // https://github.com/yujiosaka/socke.io-ie8-loading-example
+	  try {
+	    if ('undefined' !== typeof XDomainRequest && !xscheme && enablesXDR) {
+	      return new XDomainRequest();
+	    }
+	  } catch (e) {}
+
+	  if (!xdomain) {
+	    try {
+	      return new self[['Active'].concat('Object').join('X')]('Microsoft.XMLHTTP');
+	    } catch (e) {}
+	  }
+	};
+
+/***/ },
+/* 4 */
+/***/ function(module, exports) {
+
+	
+	/**
+	 * Module exports.
+	 *
+	 * Logic borrowed from Modernizr:
+	 *
+	 *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js
+	 */
+
+	try {
+	  module.exports = typeof XMLHttpRequest !== 'undefined' &&
+	    'withCredentials' in new XMLHttpRequest();
+	} catch (err) {
+	  // if XMLHttp support is disabled in IE then it will throw
+	  // when trying to create
+	  module.exports = false;
+	}
+
+
+/***/ },
+/* 5 */
+/***/ function(module, exports, __webpack_require__) {
+
+	'use strict';
+
+	/* global attachEvent */
+
+	/**
+	 * Module requirements.
+	 */
+
+	var XMLHttpRequest = __webpack_require__(3);
+	var Polling = __webpack_require__(6);
+	var Emitter = __webpack_require__(17);
+	var inherit = __webpack_require__(19);
+	var debug = __webpack_require__(21)('engine.io-client:polling-xhr');
+
+	/**
+	 * Module exports.
+	 */
+
+	module.exports = XHR;
+	module.exports.Request = Request;
+
+	/**
+	 * Empty function
+	 */
+
+	function empty() {}
+
+	/**
+	 * XHR Polling constructor.
+	 *
+	 * @param {Object} opts
+	 * @api public
+	 */
+
+	function XHR(opts) {
+	  Polling.call(this, opts);
+	  this.requestTimeout = opts.requestTimeout;
+	  this.extraHeaders = opts.extraHeaders;
+
+	  if (typeof location !== 'undefined') {
+	    var isSSL = 'https:' === location.protocol;
+	    var port = location.port;
+
+	    // some user agents have empty `location.port`
+	    if (!port) {
+	      port = isSSL ? 443 : 80;
+	    }
+
+	    this.xd = typeof location !== 'undefined' && opts.hostname !== location.hostname || port !== opts.port;
+	    this.xs = opts.secure !== isSSL;
+	  }
+	}
+
+	/**
+	 * Inherits from Polling.
+	 */
+
+	inherit(XHR, Polling);
+
+	/**
+	 * XHR supports binary
+	 */
+
+	XHR.prototype.supportsBinary = true;
+
+	/**
+	 * Creates a request.
+	 *
+	 * @param {String} method
+	 * @api private
+	 */
+
+	XHR.prototype.request = function (opts) {
+	  opts = opts || {};
+	  opts.uri = this.uri();
+	  opts.xd = this.xd;
+	  opts.xs = this.xs;
+	  opts.agent = this.agent || false;
+	  opts.supportsBinary = this.supportsBinary;
+	  opts.enablesXDR = this.enablesXDR;
+
+	  // SSL options for Node.js client
+	  opts.pfx = this.pfx;
+	  opts.key = this.key;
+	  opts.passphrase = this.passphrase;
+	  opts.cert = this.cert;
+	  opts.ca = this.ca;
+	  opts.ciphers = this.ciphers;
+	  opts.rejectUnauthorized = this.rejectUnauthorized;
+	  opts.requestTimeout = this.requestTimeout;
+
+	  // other options for Node.js client
+	  opts.extraHeaders = this.extraHeaders;
+
+	  return new Request(opts);
+	};
+
+	/**
+	 * Sends data.
+	 *
+	 * @param {String} data to send.
+	 * @param {Function} called upon flush.
+	 * @api private
+	 */
+
+	XHR.prototype.doWrite = function (data, fn) {
+	  var isBinary = typeof data !== 'string' && data !== undefined;
+	  var req = this.request({ method: 'POST', data: data, isBinary: isBinary });
+	  var self = this;
+	  req.on('success', fn);
+	  req.on('error', function (err) {
+	    self.onError('xhr post error', err);
+	  });
+	  this.sendXhr = req;
+	};
+
+	/**
+	 * Starts a poll cycle.
+	 *
+	 * @api private
+	 */
+
+	XHR.prototype.doPoll = function () {
+	  debug('xhr poll');
+	  var req = this.request();
+	  var self = this;
+	  req.on('data', function (data) {
+	    self.onData(data);
+	  });
+	  req.on('error', function (err) {
+	    self.onError('xhr poll error', err);
+	  });
+	  this.pollXhr = req;
+	};
+
+	/**
+	 * Request constructor
+	 *
+	 * @param {Object} options
+	 * @api public
+	 */
+
+	function Request(opts) {
+	  this.method = opts.method || 'GET';
+	  this.uri = opts.uri;
+	  this.xd = !!opts.xd;
+	  this.xs = !!opts.xs;
+	  this.async = false !== opts.async;
+	  this.data = undefined !== opts.data ? opts.data : null;
+	  this.agent = opts.agent;
+	  this.isBinary = opts.isBinary;
+	  this.supportsBinary = opts.supportsBinary;
+	  this.enablesXDR = opts.enablesXDR;
+	  this.requestTimeout = opts.requestTimeout;
+
+	  // SSL options for Node.js client
+	  this.pfx = opts.pfx;
+	  this.key = opts.key;
+	  this.passphrase = opts.passphrase;
+	  this.cert = opts.cert;
+	  this.ca = opts.ca;
+	  this.ciphers = opts.ciphers;
+	  this.rejectUnauthorized = opts.rejectUnauthorized;
+
+	  // other options for Node.js client
+	  this.extraHeaders = opts.extraHeaders;
+
+	  this.create();
+	}
+
+	/**
+	 * Mix in `Emitter`.
+	 */
+
+	Emitter(Request.prototype);
+
+	/**
+	 * Creates the XHR object and sends the request.
+	 *
+	 * @api private
+	 */
+
+	Request.prototype.create = function () {
+	  var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };
+
+	  // SSL options for Node.js client
+	  opts.pfx = this.pfx;
+	  opts.key = this.key;
+	  opts.passphrase = this.passphrase;
+	  opts.cert = this.cert;
+	  opts.ca = this.ca;
+	  opts.ciphers = this.ciphers;
+	  opts.rejectUnauthorized = this.rejectUnauthorized;
+
+	  var xhr = this.xhr = new XMLHttpRequest(opts);
+	  var self = this;
+
+	  try {
+	    debug('xhr open %s: %s', this.method, this.uri);
+	    xhr.open(this.method, this.uri, this.async);
+	    try {
+	      if (this.extraHeaders) {
+	        xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);
+	        for (var i in this.extraHeaders) {
+	          if (this.extraHeaders.hasOwnProperty(i)) {
+	            xhr.setRequestHeader(i, this.extraHeaders[i]);
+	          }
+	        }
+	      }
+	    } catch (e) {}
+
+	    if ('POST' === this.method) {
+	      try {
+	        if (this.isBinary) {
+	          xhr.setRequestHeader('Content-type', 'application/octet-stream');
+	        } else {
+	          xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');
+	        }
+	      } catch (e) {}
+	    }
+
+	    try {
+	      xhr.setRequestHeader('Accept', '*/*');
+	    } catch (e) {}
+
+	    // ie6 check
+	    if ('withCredentials' in xhr) {
+	      xhr.withCredentials = true;
+	    }
+
+	    if (this.requestTimeout) {
+	      xhr.timeout = this.requestTimeout;
+	    }
+
+	    if (this.hasXDR()) {
+	      xhr.onload = function () {
+	        self.onLoad();
+	      };
+	      xhr.onerror = function () {
+	        self.onError(xhr.responseText);
+	      };
+	    } else {
+	      xhr.onreadystatechange = function () {
+	        if (xhr.readyState === 2) {
+	          try {
+	            var contentType = xhr.getResponseHeader('Content-Type');
+	            if (self.supportsBinary && contentType === 'application/octet-stream') {
+	              xhr.responseType = 'arraybuffer';
+	            }
+	          } catch (e) {}
+	        }
+	        if (4 !== xhr.readyState) return;
+	        if (200 === xhr.status || 1223 === xhr.status) {
+	          self.onLoad();
+	        } else {
+	          // make sure the `error` event handler that's user-set
+	          // does not throw in the same tick and gets caught here
+	          setTimeout(function () {
+	            self.onError(xhr.status);
+	          }, 0);
+	        }
+	      };
+	    }
+
+	    debug('xhr data %s', this.data);
+	    xhr.send(this.data);
+	  } catch (e) {
+	    // Need to defer since .create() is called directly fhrom the constructor
+	    // and thus the 'error' event can only be only bound *after* this exception
+	    // occurs.  Therefore, also, we cannot throw here at all.
+	    setTimeout(function () {
+	      self.onError(e);
+	    }, 0);
+	    return;
+	  }
+
+	  if (typeof document !== 'undefined') {
+	    this.index = Request.requestsCount++;
+	    Request.requests[this.index] = this;
+	  }
+	};
+
+	/**
+	 * Called upon successful response.
+	 *
+	 * @api private
+	 */
+
+	Request.prototype.onSuccess = function () {
+	  this.emit('success');
+	  this.cleanup();
+	};
+
+	/**
+	 * Called if we have data.
+	 *
+	 * @api private
+	 */
+
+	Request.prototype.onData = function (data) {
+	  this.emit('data', data);
+	  this.onSuccess();
+	};
+
+	/**
+	 * Called upon error.
+	 *
+	 * @api private
+	 */
+
+	Request.prototype.onError = function (err) {
+	  this.emit('error', err);
+	  this.cleanup(true);
+	};
+
+	/**
+	 * Cleans up house.
+	 *
+	 * @api private
+	 */
+
+	Request.prototype.cleanup = function (fromError) {
+	  if ('undefined' === typeof this.xhr || null === this.xhr) {
+	    return;
+	  }
+	  // xmlhttprequest
+	  if (this.hasXDR()) {
+	    this.xhr.onload = this.xhr.onerror = empty;
+	  } else {
+	    this.xhr.onreadystatechange = empty;
+	  }
+
+	  if (fromError) {
+	    try {
+	      this.xhr.abort();
+	    } catch (e) {}
+	  }
+
+	  if (typeof document !== 'undefined') {
+	    delete Request.requests[this.index];
+	  }
+
+	  this.xhr = null;
+	};
+
+	/**
+	 * Called upon load.
+	 *
+	 * @api private
+	 */
+
+	Request.prototype.onLoad = function () {
+	  var data;
+	  try {
+	    var contentType;
+	    try {
+	      contentType = this.xhr.getResponseHeader('Content-Type');
+	    } catch (e) {}
+	    if (contentType === 'application/octet-stream') {
+	      data = this.xhr.response || this.xhr.responseText;
+	    } else {
+	      data = this.xhr.responseText;
+	    }
+	  } catch (e) {
+	    this.onError(e);
+	  }
+	  if (null != data) {
+	    this.onData(data);
+	  }
+	};
+
+	/**
+	 * Check if it has XDomainRequest.
+	 *
+	 * @api private
+	 */
+
+	Request.prototype.hasXDR = function () {
+	  return typeof XDomainRequest !== 'undefined' && !this.xs && this.enablesXDR;
+	};
+
+	/**
+	 * Aborts the request.
+	 *
+	 * @api public
+	 */
+
+	Request.prototype.abort = function () {
+	  this.cleanup();
+	};
+
+	/**
+	 * Aborts pending requests when unloading the window. This is needed to prevent
+	 * memory leaks (e.g. when using IE) and to ensure that no spurious error is
+	 * emitted.
+	 */
+
+	Request.requestsCount = 0;
+	Request.requests = {};
+
+	if (typeof document !== 'undefined') {
+	  if (typeof attachEvent === 'function') {
+	    attachEvent('onunload', unloadHandler);
+	  } else if (typeof addEventListener === 'function') {
+	    var terminationEvent = 'onpagehide' in self ? 'pagehide' : 'unload';
+	    addEventListener(terminationEvent, unloadHandler, false);
+	  }
+	}
+
+	function unloadHandler() {
+	  for (var i in Request.requests) {
+	    if (Request.requests.hasOwnProperty(i)) {
+	      Request.requests[i].abort();
+	    }
+	  }
+	}
+
+/***/ },
+/* 6 */
+/***/ function(module, exports, __webpack_require__) {
+
+	'use strict';
+
+	/**
+	 * Module dependencies.
+	 */
+
+	var Transport = __webpack_require__(7);
+	var parseqs = __webpack_require__(18);
+	var parser = __webpack_require__(8);
+	var inherit = __webpack_require__(19);
+	var yeast = __webpack_require__(20);
+	var debug = __webpack_require__(21)('engine.io-client:polling');
+
+	/**
+	 * Module exports.
+	 */
+
+	module.exports = Polling;
+
+	/**
+	 * Is XHR2 supported?
+	 */
+
+	var hasXHR2 = function () {
+	  var XMLHttpRequest = __webpack_require__(3);
+	  var xhr = new XMLHttpRequest({ xdomain: false });
+	  return null != xhr.responseType;
+	}();
+
+	/**
+	 * Polling interface.
+	 *
+	 * @param {Object} opts
+	 * @api private
+	 */
+
+	function Polling(opts) {
+	  var forceBase64 = opts && opts.forceBase64;
+	  if (!hasXHR2 || forceBase64) {
+	    this.supportsBinary = false;
+	  }
+	  Transport.call(this, opts);
+	}
+
+	/**
+	 * Inherits from Transport.
+	 */
+
+	inherit(Polling, Transport);
+
+	/**
+	 * Transport name.
+	 */
+
+	Polling.prototype.name = 'polling';
+
+	/**
+	 * Opens the socket (triggers polling). We write a PING message to determine
+	 * when the transport is open.
+	 *
+	 * @api private
+	 */
+
+	Polling.prototype.doOpen = function () {
+	  this.poll();
+	};
+
+	/**
+	 * Pauses polling.
+	 *
+	 * @param {Function} callback upon buffers are flushed and transport is paused
+	 * @api private
+	 */
+
+	Polling.prototype.pause = function (onPause) {
+	  var self = this;
+
+	  this.readyState = 'pausing';
+
+	  function pause() {
+	    debug('paused');
+	    self.readyState = 'paused';
+	    onPause();
+	  }
+
+	  if (this.polling || !this.writable) {
+	    var total = 0;
+
+	    if (this.polling) {
+	      debug('we are currently polling - waiting to pause');
+	      total++;
+	      this.once('pollComplete', function () {
+	        debug('pre-pause polling complete');
+	        --total || pause();
+	      });
+	    }
+
+	    if (!this.writable) {
+	      debug('we are currently writing - waiting to pause');
+	      total++;
+	      this.once('drain', function () {
+	        debug('pre-pause writing complete');
+	        --total || pause();
+	      });
+	    }
+	  } else {
+	    pause();
+	  }
+	};
+
+	/**
+	 * Starts polling cycle.
+	 *
+	 * @api public
+	 */
+
+	Polling.prototype.poll = function () {
+	  debug('polling');
+	  this.polling = true;
+	  this.doPoll();
+	  this.emit('poll');
+	};
+
+	/**
+	 * Overloads onData to detect payloads.
+	 *
+	 * @api private
+	 */
+
+	Polling.prototype.onData = function (data) {
+	  var self = this;
+	  debug('polling got data %s', data);
+	  var callback = function callback(packet, index, total) {
+	    // if its the first message we consider the transport open
+	    if ('opening' === self.readyState) {
+	      self.onOpen();
+	    }
+
+	    // if its a close packet, we close the ongoing requests
+	    if ('close' === packet.type) {
+	      self.onClose();
+	      return false;
+	    }
+
+	    // otherwise bypass onData and handle the message
+	    self.onPacket(packet);
+	  };
+
+	  // decode payload
+	  parser.decodePayload(data, this.socket.binaryType, callback);
+
+	  // if an event did not trigger closing
+	  if ('closed' !== this.readyState) {
+	    // if we got data we're not polling
+	    this.polling = false;
+	    this.emit('pollComplete');
+
+	    if ('open' === this.readyState) {
+	      this.poll();
+	    } else {
+	      debug('ignoring poll - transport state "%s"', this.readyState);
+	    }
+	  }
+	};
+
+	/**
+	 * For polling, send a close packet.
+	 *
+	 * @api private
+	 */
+
+	Polling.prototype.doClose = function () {
+	  var self = this;
+
+	  function close() {
+	    debug('writing close packet');
+	    self.write([{ type: 'close' }]);
+	  }
+
+	  if ('open' === this.readyState) {
+	    debug('transport open - closing');
+	    close();
+	  } else {
+	    // in case we're trying to close while
+	    // handshaking is in progress (GH-164)
+	    debug('transport not open - deferring close');
+	    this.once('open', close);
+	  }
+	};
+
+	/**
+	 * Writes a packets payload.
+	 *
+	 * @param {Array} data packets
+	 * @param {Function} drain callback
+	 * @api private
+	 */
+
+	Polling.prototype.write = function (packets) {
+	  var self = this;
+	  this.writable = false;
+	  var callbackfn = function callbackfn() {
+	    self.writable = true;
+	    self.emit('drain');
+	  };
+
+	  parser.encodePayload(packets, this.supportsBinary, function (data) {
+	    self.doWrite(data, callbackfn);
+	  });
+	};
+
+	/**
+	 * Generates uri for connection.
+	 *
+	 * @api private
+	 */
+
+	Polling.prototype.uri = function () {
+	  var query = this.query || {};
+	  var schema = this.secure ? 'https' : 'http';
+	  var port = '';
+
+	  // cache busting is forced
+	  if (false !== this.timestampRequests) {
+	    query[this.timestampParam] = yeast();
+	  }
+
+	  if (!this.supportsBinary && !query.sid) {
+	    query.b64 = 1;
+	  }
+
+	  query = parseqs.encode(query);
+
+	  // avoid port if default for schema
+	  if (this.port && ('https' === schema && Number(this.port) !== 443 || 'http' === schema && Number(this.port) !== 80)) {
+	    port = ':' + this.port;
+	  }
+
+	  // prepend ? to query
+	  if (query.length) {
+	    query = '?' + query;
+	  }
+
+	  var ipv6 = this.hostname.indexOf(':') !== -1;
+	  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;
+	};
+
+/***/ },
+/* 7 */
+/***/ function(module, exports, __webpack_require__) {
+
+	'use strict';
+
+	/**
+	 * Module dependencies.
+	 */
+
+	var parser = __webpack_require__(8);
+	var Emitter = __webpack_require__(17);
+
+	/**
+	 * Module exports.
+	 */
+
+	module.exports = Transport;
+
+	/**
+	 * Transport abstract constructor.
+	 *
+	 * @param {Object} options.
+	 * @api private
+	 */
+
+	function Transport(opts) {
+	  this.path = opts.path;
+	  this.hostname = opts.hostname;
+	  this.port = opts.port;
+	  this.secure = opts.secure;
+	  this.query = opts.query;
+	  this.timestampParam = opts.timestampParam;
+	  this.timestampRequests = opts.timestampRequests;
+	  this.readyState = '';
+	  this.agent = opts.agent || false;
+	  this.socket = opts.socket;
+	  this.enablesXDR = opts.enablesXDR;
+
+	  // SSL options for Node.js client
+	  this.pfx = opts.pfx;
+	  this.key = opts.key;
+	  this.passphrase = opts.passphrase;
+	  this.cert = opts.cert;
+	  this.ca = opts.ca;
+	  this.ciphers = opts.ciphers;
+	  this.rejectUnauthorized = opts.rejectUnauthorized;
+	  this.forceNode = opts.forceNode;
+
+	  // results of ReactNative environment detection
+	  this.isReactNative = opts.isReactNative;
+
+	  // other options for Node.js client
+	  this.extraHeaders = opts.extraHeaders;
+	  this.localAddress = opts.localAddress;
+	}
+
+	/**
+	 * Mix in `Emitter`.
+	 */
+
+	Emitter(Transport.prototype);
+
+	/**
+	 * Emits an error.
+	 *
+	 * @param {String} str
+	 * @return {Transport} for chaining
+	 * @api public
+	 */
+
+	Transport.prototype.onError = function (msg, desc) {
+	  var err = new Error(msg);
+	  err.type = 'TransportError';
+	  err.description = desc;
+	  this.emit('error', err);
+	  return this;
+	};
+
+	/**
+	 * Opens the transport.
+	 *
+	 * @api public
+	 */
+
+	Transport.prototype.open = function () {
+	  if ('closed' === this.readyState || '' === this.readyState) {
+	    this.readyState = 'opening';
+	    this.doOpen();
+	  }
+
+	  return this;
+	};
+
+	/**
+	 * Closes the transport.
+	 *
+	 * @api private
+	 */
+
+	Transport.prototype.close = function () {
+	  if ('opening' === this.readyState || 'open' === this.readyState) {
+	    this.doClose();
+	    this.onClose();
+	  }
+
+	  return this;
+	};
+
+	/**
+	 * Sends multiple packets.
+	 *
+	 * @param {Array} packets
+	 * @api private
+	 */
+
+	Transport.prototype.send = function (packets) {
+	  if ('open' === this.readyState) {
+	    this.write(packets);
+	  } else {
+	    throw new Error('Transport not open');
+	  }
+	};
+
+	/**
+	 * Called upon open
+	 *
+	 * @api private
+	 */
+
+	Transport.prototype.onOpen = function () {
+	  this.readyState = 'open';
+	  this.writable = true;
+	  this.emit('open');
+	};
+
+	/**
+	 * Called with data.
+	 *
+	 * @param {String} data
+	 * @api private
+	 */
+
+	Transport.prototype.onData = function (data) {
+	  var packet = parser.decodePacket(data, this.socket.binaryType);
+	  this.onPacket(packet);
+	};
+
+	/**
+	 * Called with a decoded packet.
+	 */
+
+	Transport.prototype.onPacket = function (packet) {
+	  this.emit('packet', packet);
+	};
+
+	/**
+	 * Called upon close.
+	 *
+	 * @api private
+	 */
+
+	Transport.prototype.onClose = function () {
+	  this.readyState = 'closed';
+	  this.emit('close');
+	};
+
+/***/ },
+/* 8 */
+/***/ function(module, exports, __webpack_require__) {
+
+	/**
+	 * Module dependencies.
+	 */
+
+	var keys = __webpack_require__(9);
+	var hasBinary = __webpack_require__(10);
+	var sliceBuffer = __webpack_require__(12);
+	var after = __webpack_require__(13);
+	var utf8 = __webpack_require__(14);
+
+	var base64encoder;
+	if (typeof ArrayBuffer !== 'undefined') {
+	  base64encoder = __webpack_require__(15);
+	}
+
+	/**
+	 * Check if we are running an android browser. That requires us to use
+	 * ArrayBuffer with polling transports...
+	 *
+	 * http://ghinda.net/jpeg-blob-ajax-android/
+	 */
+
+	var isAndroid = typeof navigator !== 'undefined' && /Android/i.test(navigator.userAgent);
+
+	/**
+	 * Check if we are running in PhantomJS.
+	 * Uploading a Blob with PhantomJS does not work correctly, as reported here:
+	 * https://github.com/ariya/phantomjs/issues/11395
+	 * @type boolean
+	 */
+	var isPhantomJS = typeof navigator !== 'undefined' && /PhantomJS/i.test(navigator.userAgent);
+
+	/**
+	 * When true, avoids using Blobs to encode payloads.
+	 * @type boolean
+	 */
+	var dontSendBlobs = isAndroid || isPhantomJS;
+
+	/**
+	 * Current protocol version.
+	 */
+
+	exports.protocol = 3;
+
+	/**
+	 * Packet types.
+	 */
+
+	var packets = exports.packets = {
+	    open:     0    // non-ws
+	  , close:    1    // non-ws
+	  , ping:     2
+	  , pong:     3
+	  , message:  4
+	  , upgrade:  5
+	  , noop:     6
+	};
+
+	var packetslist = keys(packets);
+
+	/**
+	 * Premade error packet.
+	 */
+
+	var err = { type: 'error', data: 'parser error' };
+
+	/**
+	 * Create a blob api even for blob builder when vendor prefixes exist
+	 */
+
+	var Blob = __webpack_require__(16);
+
+	/**
+	 * Encodes a packet.
+	 *
+	 *     <packet type id> [ <data> ]
+	 *
+	 * Example:
+	 *
+	 *     5hello world
+	 *     3
+	 *     4
+	 *
+	 * Binary is encoded in an identical principle
+	 *
+	 * @api private
+	 */
+
+	exports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {
+	  if (typeof supportsBinary === 'function') {
+	    callback = supportsBinary;
+	    supportsBinary = false;
+	  }
+
+	  if (typeof utf8encode === 'function') {
+	    callback = utf8encode;
+	    utf8encode = null;
+	  }
+
+	  var data = (packet.data === undefined)
+	    ? undefined
+	    : packet.data.buffer || packet.data;
+
+	  if (typeof ArrayBuffer !== 'undefined' && data instanceof ArrayBuffer) {
+	    return encodeArrayBuffer(packet, supportsBinary, callback);
+	  } else if (typeof Blob !== 'undefined' && data instanceof Blob) {
+	    return encodeBlob(packet, supportsBinary, callback);
+	  }
+
+	  // might be an object with { base64: true, data: dataAsBase64String }
+	  if (data && data.base64) {
+	    return encodeBase64Object(packet, callback);
+	  }
+
+	  // Sending data as a utf-8 string
+	  var encoded = packets[packet.type];
+
+	  // data fragment is optional
+	  if (undefined !== packet.data) {
+	    encoded += utf8encode ? utf8.encode(String(packet.data), { strict: false }) : String(packet.data);
+	  }
+
+	  return callback('' + encoded);
+
+	};
+
+	function encodeBase64Object(packet, callback) {
+	  // packet data is an object { base64: true, data: dataAsBase64String }
+	  var message = 'b' + exports.packets[packet.type] + packet.data.data;
+	  return callback(message);
+	}
+
+	/**
+	 * Encode packet helpers for binary types
+	 */
+
+	function encodeArrayBuffer(packet, supportsBinary, callback) {
+	  if (!supportsBinary) {
+	    return exports.encodeBase64Packet(packet, callback);
+	  }
+
+	  var data = packet.data;
+	  var contentArray = new Uint8Array(data);
+	  var resultBuffer = new Uint8Array(1 + data.byteLength);
+
+	  resultBuffer[0] = packets[packet.type];
+	  for (var i = 0; i < contentArray.length; i++) {
+	    resultBuffer[i+1] = contentArray[i];
+	  }
+
+	  return callback(resultBuffer.buffer);
+	}
+
+	function encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {
+	  if (!supportsBinary) {
+	    return exports.encodeBase64Packet(packet, callback);
+	  }
+
+	  var fr = new FileReader();
+	  fr.onload = function() {
+	    exports.encodePacket({ type: packet.type, data: fr.result }, supportsBinary, true, callback);
+	  };
+	  return fr.readAsArrayBuffer(packet.data);
+	}
+
+	function encodeBlob(packet, supportsBinary, callback) {
+	  if (!supportsBinary) {
+	    return exports.encodeBase64Packet(packet, callback);
+	  }
+
+	  if (dontSendBlobs) {
+	    return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);
+	  }
+
+	  var length = new Uint8Array(1);
+	  length[0] = packets[packet.type];
+	  var blob = new Blob([length.buffer, packet.data]);
+
+	  return callback(blob);
+	}
+
+	/**
+	 * Encodes a packet with binary data in a base64 string
+	 *
+	 * @param {Object} packet, has `type` and `data`
+	 * @return {String} base64 encoded message
+	 */
+
+	exports.encodeBase64Packet = function(packet, callback) {
+	  var message = 'b' + exports.packets[packet.type];
+	  if (typeof Blob !== 'undefined' && packet.data instanceof Blob) {
+	    var fr = new FileReader();
+	    fr.onload = function() {
+	      var b64 = fr.result.split(',')[1];
+	      callback(message + b64);
+	    };
+	    return fr.readAsDataURL(packet.data);
+	  }
+
+	  var b64data;
+	  try {
+	    b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));
+	  } catch (e) {
+	    // iPhone Safari doesn't let you apply with typed arrays
+	    var typed = new Uint8Array(packet.data);
+	    var basic = new Array(typed.length);
+	    for (var i = 0; i < typed.length; i++) {
+	      basic[i] = typed[i];
+	    }
+	    b64data = String.fromCharCode.apply(null, basic);
+	  }
+	  message += btoa(b64data);
+	  return callback(message);
+	};
+
+	/**
+	 * Decodes a packet. Changes format to Blob if requested.
+	 *
+	 * @return {Object} with `type` and `data` (if any)
+	 * @api private
+	 */
+
+	exports.decodePacket = function (data, binaryType, utf8decode) {
+	  if (data === undefined) {
+	    return err;
+	  }
+	  // String data
+	  if (typeof data === 'string') {
+	    if (data.charAt(0) === 'b') {
+	      return exports.decodeBase64Packet(data.substr(1), binaryType);
+	    }
+
+	    if (utf8decode) {
+	      data = tryDecode(data);
+	      if (data === false) {
+	        return err;
+	      }
+	    }
+	    var type = data.charAt(0);
+
+	    if (Number(type) != type || !packetslist[type]) {
+	      return err;
+	    }
+
+	    if (data.length > 1) {
+	      return { type: packetslist[type], data: data.substring(1) };
+	    } else {
+	      return { type: packetslist[type] };
+	    }
+	  }
+
+	  var asArray = new Uint8Array(data);
+	  var type = asArray[0];
+	  var rest = sliceBuffer(data, 1);
+	  if (Blob && binaryType === 'blob') {
+	    rest = new Blob([rest]);
+	  }
+	  return { type: packetslist[type], data: rest };
+	};
+
+	function tryDecode(data) {
+	  try {
+	    data = utf8.decode(data, { strict: false });
+	  } catch (e) {
+	    return false;
+	  }
+	  return data;
+	}
+
+	/**
+	 * Decodes a packet encoded in a base64 string
+	 *
+	 * @param {String} base64 encoded message
+	 * @return {Object} with `type` and `data` (if any)
+	 */
+
+	exports.decodeBase64Packet = function(msg, binaryType) {
+	  var type = packetslist[msg.charAt(0)];
+	  if (!base64encoder) {
+	    return { type: type, data: { base64: true, data: msg.substr(1) } };
+	  }
+
+	  var data = base64encoder.decode(msg.substr(1));
+
+	  if (binaryType === 'blob' && Blob) {
+	    data = new Blob([data]);
+	  }
+
+	  return { type: type, data: data };
+	};
+
+	/**
+	 * Encodes multiple messages (payload).
+	 *
+	 *     <length>:data
+	 *
+	 * Example:
+	 *
+	 *     11:hello world2:hi
+	 *
+	 * If any contents are binary, they will be encoded as base64 strings. Base64
+	 * encoded strings are marked with a b before the length specifier
+	 *
+	 * @param {Array} packets
+	 * @api private
+	 */
+
+	exports.encodePayload = function (packets, supportsBinary, callback) {
+	  if (typeof supportsBinary === 'function') {
+	    callback = supportsBinary;
+	    supportsBinary = null;
+	  }
+
+	  var isBinary = hasBinary(packets);
+
+	  if (supportsBinary && isBinary) {
+	    if (Blob && !dontSendBlobs) {
+	      return exports.encodePayloadAsBlob(packets, callback);
+	    }
+
+	    return exports.encodePayloadAsArrayBuffer(packets, callback);
+	  }
+
+	  if (!packets.length) {
+	    return callback('0:');
+	  }
+
+	  function setLengthHeader(message) {
+	    return message.length + ':' + message;
+	  }
+
+	  function encodeOne(packet, doneCallback) {
+	    exports.encodePacket(packet, !isBinary ? false : supportsBinary, false, function(message) {
+	      doneCallback(null, setLengthHeader(message));
+	    });
+	  }
+
+	  map(packets, encodeOne, function(err, results) {
+	    return callback(results.join(''));
+	  });
+	};
+
+	/**
+	 * Async array map using after
+	 */
+
+	function map(ary, each, done) {
+	  var result = new Array(ary.length);
+	  var next = after(ary.length, done);
+
+	  var eachWithIndex = function(i, el, cb) {
+	    each(el, function(error, msg) {
+	      result[i] = msg;
+	      cb(error, result);
+	    });
+	  };
+
+	  for (var i = 0; i < ary.length; i++) {
+	    eachWithIndex(i, ary[i], next);
+	  }
+	}
+
+	/*
+	 * Decodes data when a payload is maybe expected. Possible binary contents are
+	 * decoded from their base64 representation
+	 *
+	 * @param {String} data, callback method
+	 * @api public
+	 */
+
+	exports.decodePayload = function (data, binaryType, callback) {
+	  if (typeof data !== 'string') {
+	    return exports.decodePayloadAsBinary(data, binaryType, callback);
+	  }
+
+	  if (typeof binaryType === 'function') {
+	    callback = binaryType;
+	    binaryType = null;
+	  }
+
+	  var packet;
+	  if (data === '') {
+	    // parser error - ignoring payload
+	    return callback(err, 0, 1);
+	  }
+
+	  var length = '', n, msg;
+
+	  for (var i = 0, l = data.length; i < l; i++) {
+	    var chr = data.charAt(i);
+
+	    if (chr !== ':') {
+	      length += chr;
+	      continue;
+	    }
+
+	    if (length === '' || (length != (n = Number(length)))) {
+	      // parser error - ignoring payload
+	      return callback(err, 0, 1);
+	    }
+
+	    msg = data.substr(i + 1, n);
+
+	    if (length != msg.length) {
+	      // parser error - ignoring payload
+	      return callback(err, 0, 1);
+	    }
+
+	    if (msg.length) {
+	      packet = exports.decodePacket(msg, binaryType, false);
+
+	      if (err.type === packet.type && err.data === packet.data) {
+	        // parser error in individual packet - ignoring payload
+	        return callback(err, 0, 1);
+	      }
+
+	      var ret = callback(packet, i + n, l);
+	      if (false === ret) return;
+	    }
+
+	    // advance cursor
+	    i += n;
+	    length = '';
+	  }
+
+	  if (length !== '') {
+	    // parser error - ignoring payload
+	    return callback(err, 0, 1);
+	  }
+
+	};
+
+	/**
+	 * Encodes multiple messages (payload) as binary.
+	 *
+	 * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number
+	 * 255><data>
+	 *
+	 * Example:
+	 * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers
+	 *
+	 * @param {Array} packets
+	 * @return {ArrayBuffer} encoded payload
+	 * @api private
+	 */
+
+	exports.encodePayloadAsArrayBuffer = function(packets, callback) {
+	  if (!packets.length) {
+	    return callback(new ArrayBuffer(0));
+	  }
+
+	  function encodeOne(packet, doneCallback) {
+	    exports.encodePacket(packet, true, true, function(data) {
+	      return doneCallback(null, data);
+	    });
+	  }
+
+	  map(packets, encodeOne, function(err, encodedPackets) {
+	    var totalLength = encodedPackets.reduce(function(acc, p) {
+	      var len;
+	      if (typeof p === 'string'){
+	        len = p.length;
+	      } else {
+	        len = p.byteLength;
+	      }
+	      return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2
+	    }, 0);
+
+	    var resultArray = new Uint8Array(totalLength);
+
+	    var bufferIndex = 0;
+	    encodedPackets.forEach(function(p) {
+	      var isString = typeof p === 'string';
+	      var ab = p;
+	      if (isString) {
+	        var view = new Uint8Array(p.length);
+	        for (var i = 0; i < p.length; i++) {
+	          view[i] = p.charCodeAt(i);
+	        }
+	        ab = view.buffer;
+	      }
+
+	      if (isString) { // not true binary
+	        resultArray[bufferIndex++] = 0;
+	      } else { // true binary
+	        resultArray[bufferIndex++] = 1;
+	      }
+
+	      var lenStr = ab.byteLength.toString();
+	      for (var i = 0; i < lenStr.length; i++) {
+	        resultArray[bufferIndex++] = parseInt(lenStr[i]);
+	      }
+	      resultArray[bufferIndex++] = 255;
+
+	      var view = new Uint8Array(ab);
+	      for (var i = 0; i < view.length; i++) {
+	        resultArray[bufferIndex++] = view[i];
+	      }
+	    });
+
+	    return callback(resultArray.buffer);
+	  });
+	};
+
+	/**
+	 * Encode as Blob
+	 */
+
+	exports.encodePayloadAsBlob = function(packets, callback) {
+	  function encodeOne(packet, doneCallback) {
+	    exports.encodePacket(packet, true, true, function(encoded) {
+	      var binaryIdentifier = new Uint8Array(1);
+	      binaryIdentifier[0] = 1;
+	      if (typeof encoded === 'string') {
+	        var view = new Uint8Array(encoded.length);
+	        for (var i = 0; i < encoded.length; i++) {
+	          view[i] = encoded.charCodeAt(i);
+	        }
+	        encoded = view.buffer;
+	        binaryIdentifier[0] = 0;
+	      }
+
+	      var len = (encoded instanceof ArrayBuffer)
+	        ? encoded.byteLength
+	        : encoded.size;
+
+	      var lenStr = len.toString();
+	      var lengthAry = new Uint8Array(lenStr.length + 1);
+	      for (var i = 0; i < lenStr.length; i++) {
+	        lengthAry[i] = parseInt(lenStr[i]);
+	      }
+	      lengthAry[lenStr.length] = 255;
+
+	      if (Blob) {
+	        var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);
+	        doneCallback(null, blob);
+	      }
+	    });
+	  }
+
+	  map(packets, encodeOne, function(err, results) {
+	    return callback(new Blob(results));
+	  });
+	};
+
+	/*
+	 * Decodes data when a payload is maybe expected. Strings are decoded by
+	 * interpreting each byte as a key code for entries marked to start with 0. See
+	 * description of encodePayloadAsBinary
+	 *
+	 * @param {ArrayBuffer} data, callback method
+	 * @api public
+	 */
+
+	exports.decodePayloadAsBinary = function (data, binaryType, callback) {
+	  if (typeof binaryType === 'function') {
+	    callback = binaryType;
+	    binaryType = null;
+	  }
+
+	  var bufferTail = data;
+	  var buffers = [];
+
+	  while (bufferTail.byteLength > 0) {
+	    var tailArray = new Uint8Array(bufferTail);
+	    var isString = tailArray[0] === 0;
+	    var msgLength = '';
+
+	    for (var i = 1; ; i++) {
+	      if (tailArray[i] === 255) break;
+
+	      // 310 = char length of Number.MAX_VALUE
+	      if (msgLength.length > 310) {
+	        return callback(err, 0, 1);
+	      }
+
+	      msgLength += tailArray[i];
+	    }
+
+	    bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);
+	    msgLength = parseInt(msgLength);
+
+	    var msg = sliceBuffer(bufferTail, 0, msgLength);
+	    if (isString) {
+	      try {
+	        msg = String.fromCharCode.apply(null, new Uint8Array(msg));
+	      } catch (e) {
+	        // iPhone Safari doesn't let you apply to typed arrays
+	        var typed = new Uint8Array(msg);
+	        msg = '';
+	        for (var i = 0; i < typed.length; i++) {
+	          msg += String.fromCharCode(typed[i]);
+	        }
+	      }
+	    }
+
+	    buffers.push(msg);
+	    bufferTail = sliceBuffer(bufferTail, msgLength);
+	  }
+
+	  var total = buffers.length;
+	  buffers.forEach(function(buffer, i) {
+	    callback(exports.decodePacket(buffer, binaryType, true), i, total);
+	  });
+	};
+
+
+/***/ },
+/* 9 */
+/***/ function(module, exports) {
+
+	
+	/**
+	 * Gets the keys for an object.
+	 *
+	 * @return {Array} keys
+	 * @api private
+	 */
+
+	module.exports = Object.keys || function keys (obj){
+	  var arr = [];
+	  var has = Object.prototype.hasOwnProperty;
+
+	  for (var i in obj) {
+	    if (has.call(obj, i)) {
+	      arr.push(i);
+	    }
+	  }
+	  return arr;
+	};
+
+
+/***/ },
+/* 10 */
+/***/ function(module, exports, __webpack_require__) {
+
+	/* global Blob File */
+
+	/*
+	 * Module requirements.
+	 */
+
+	var isArray = __webpack_require__(11);
+
+	var toString = Object.prototype.toString;
+	var withNativeBlob = typeof Blob === 'function' ||
+	                        typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]';
+	var withNativeFile = typeof File === 'function' ||
+	                        typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]';
+
+	/**
+	 * Module exports.
+	 */
+
+	module.exports = hasBinary;
+
+	/**
+	 * Checks for binary data.
+	 *
+	 * Supports Buffer, ArrayBuffer, Blob and File.
+	 *
+	 * @param {Object} anything
+	 * @api public
+	 */
+
+	function hasBinary (obj) {
+	  if (!obj || typeof obj !== 'object') {
+	    return false;
+	  }
+
+	  if (isArray(obj)) {
+	    for (var i = 0, l = obj.length; i < l; i++) {
+	      if (hasBinary(obj[i])) {
+	        return true;
+	      }
+	    }
+	    return false;
+	  }
+
+	  if ((typeof Buffer === 'function' && Buffer.isBuffer && Buffer.isBuffer(obj)) ||
+	    (typeof ArrayBuffer === 'function' && obj instanceof ArrayBuffer) ||
+	    (withNativeBlob && obj instanceof Blob) ||
+	    (withNativeFile && obj instanceof File)
+	  ) {
+	    return true;
+	  }
+
+	  // see: https://github.com/Automattic/has-binary/pull/4
+	  if (obj.toJSON && typeof obj.toJSON === 'function' && arguments.length === 1) {
+	    return hasBinary(obj.toJSON(), true);
+	  }
+
+	  for (var key in obj) {
+	    if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {
+	      return true;
+	    }
+	  }
+
+	  return false;
+	}
+
+
+/***/ },
+/* 11 */
+/***/ function(module, exports) {
+
+	var toString = {}.toString;
+
+	module.exports = Array.isArray || function (arr) {
+	  return toString.call(arr) == '[object Array]';
+	};
+
+
+/***/ },
+/* 12 */
+/***/ function(module, exports) {
+
+	/**
+	 * An abstraction for slicing an arraybuffer even when
+	 * ArrayBuffer.prototype.slice is not supported
+	 *
+	 * @api public
+	 */
+
+	module.exports = function(arraybuffer, start, end) {
+	  var bytes = arraybuffer.byteLength;
+	  start = start || 0;
+	  end = end || bytes;
+
+	  if (arraybuffer.slice) { return arraybuffer.slice(start, end); }
+
+	  if (start < 0) { start += bytes; }
+	  if (end < 0) { end += bytes; }
+	  if (end > bytes) { end = bytes; }
+
+	  if (start >= bytes || start >= end || bytes === 0) {
+	    return new ArrayBuffer(0);
+	  }
+
+	  var abv = new Uint8Array(arraybuffer);
+	  var result = new Uint8Array(end - start);
+	  for (var i = start, ii = 0; i < end; i++, ii++) {
+	    result[ii] = abv[i];
+	  }
+	  return result.buffer;
+	};
+
+
+/***/ },
+/* 13 */
+/***/ function(module, exports) {
+
+	module.exports = after
+
+	function after(count, callback, err_cb) {
+	    var bail = false
+	    err_cb = err_cb || noop
+	    proxy.count = count
+
+	    return (count === 0) ? callback() : proxy
+
+	    function proxy(err, result) {
+	        if (proxy.count <= 0) {
+	            throw new Error('after called too many times')
+	        }
+	        --proxy.count
+
+	        // after first error, rest are passed to err_cb
+	        if (err) {
+	            bail = true
+	            callback(err)
+	            // future error callbacks will go to error handler
+	            callback = err_cb
+	        } else if (proxy.count === 0 && !bail) {
+	            callback(null, result)
+	        }
+	    }
+	}
+
+	function noop() {}
+
+
+/***/ },
+/* 14 */
+/***/ function(module, exports) {
+
+	/*! https://mths.be/utf8js v2.1.2 by @mathias */
+
+	var stringFromCharCode = String.fromCharCode;
+
+	// Taken from https://mths.be/punycode
+	function ucs2decode(string) {
+		var output = [];
+		var counter = 0;
+		var length = string.length;
+		var value;
+		var extra;
+		while (counter < length) {
+			value = string.charCodeAt(counter++);
+			if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
+				// high surrogate, and there is a next character
+				extra = string.charCodeAt(counter++);
+				if ((extra & 0xFC00) == 0xDC00) { // low surrogate
+					output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
+				} else {
+					// unmatched surrogate; only append this code unit, in case the next
+					// code unit is the high surrogate of a surrogate pair
+					output.push(value);
+					counter--;
+				}
+			} else {
+				output.push(value);
+			}
+		}
+		return output;
+	}
+
+	// Taken from https://mths.be/punycode
+	function ucs2encode(array) {
+		var length = array.length;
+		var index = -1;
+		var value;
+		var output = '';
+		while (++index < length) {
+			value = array[index];
+			if (value > 0xFFFF) {
+				value -= 0x10000;
+				output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
+				value = 0xDC00 | value & 0x3FF;
+			}
+			output += stringFromCharCode(value);
+		}
+		return output;
+	}
+
+	function checkScalarValue(codePoint, strict) {
+		if (codePoint >= 0xD800 && codePoint <= 0xDFFF) {
+			if (strict) {
+				throw Error(
+					'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +
+					' is not a scalar value'
+				);
+			}
+			return false;
+		}
+		return true;
+	}
+	/*--------------------------------------------------------------------------*/
+
+	function createByte(codePoint, shift) {
+		return stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);
+	}
+
+	function encodeCodePoint(codePoint, strict) {
+		if ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence
+			return stringFromCharCode(codePoint);
+		}
+		var symbol = '';
+		if ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence
+			symbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);
+		}
+		else if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence
+			if (!checkScalarValue(codePoint, strict)) {
+				codePoint = 0xFFFD;
+			}
+			symbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);
+			symbol += createByte(codePoint, 6);
+		}
+		else if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence
+			symbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);
+			symbol += createByte(codePoint, 12);
+			symbol += createByte(codePoint, 6);
+		}
+		symbol += stringFromCharCode((codePoint & 0x3F) | 0x80);
+		return symbol;
+	}
+
+	function utf8encode(string, opts) {
+		opts = opts || {};
+		var strict = false !== opts.strict;
+
+		var codePoints = ucs2decode(string);
+		var length = codePoints.length;
+		var index = -1;
+		var codePoint;
+		var byteString = '';
+		while (++index < length) {
+			codePoint = codePoints[index];
+			byteString += encodeCodePoint(codePoint, strict);
+		}
+		return byteString;
+	}
+
+	/*--------------------------------------------------------------------------*/
+
+	function readContinuationByte() {
+		if (byteIndex >= byteCount) {
+			throw Error('Invalid byte index');
+		}
+
+		var continuationByte = byteArray[byteIndex] & 0xFF;
+		byteIndex++;
+
+		if ((continuationByte & 0xC0) == 0x80) {
+			return continuationByte & 0x3F;
+		}
+
+		// If we end up here, it’s not a continuation byte
+		throw Error('Invalid continuation byte');
+	}
+
+	function decodeSymbol(strict) {
+		var byte1;
+		var byte2;
+		var byte3;
+		var byte4;
+		var codePoint;
+
+		if (byteIndex > byteCount) {
+			throw Error('Invalid byte index');
+		}
+
+		if (byteIndex == byteCount) {
+			return false;
+		}
+
+		// Read first byte
+		byte1 = byteArray[byteIndex] & 0xFF;
+		byteIndex++;
+
+		// 1-byte sequence (no continuation bytes)
+		if ((byte1 & 0x80) == 0) {
+			return byte1;
+		}
+
+		// 2-byte sequence
+		if ((byte1 & 0xE0) == 0xC0) {
+			byte2 = readContinuationByte();
+			codePoint = ((byte1 & 0x1F) << 6) | byte2;
+			if (codePoint >= 0x80) {
+				return codePoint;
+			} else {
+				throw Error('Invalid continuation byte');
+			}
+		}
+
+		// 3-byte sequence (may include unpaired surrogates)
+		if ((byte1 & 0xF0) == 0xE0) {
+			byte2 = readContinuationByte();
+			byte3 = readContinuationByte();
+			codePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;
+			if (codePoint >= 0x0800) {
+				return checkScalarValue(codePoint, strict) ? codePoint : 0xFFFD;
+			} else {
+				throw Error('Invalid continuation byte');
+			}
+		}
+
+		// 4-byte sequence
+		if ((byte1 & 0xF8) == 0xF0) {
+			byte2 = readContinuationByte();
+			byte3 = readContinuationByte();
+			byte4 = readContinuationByte();
+			codePoint = ((byte1 & 0x07) << 0x12) | (byte2 << 0x0C) |
+				(byte3 << 0x06) | byte4;
+			if (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {
+				return codePoint;
+			}
+		}
+
+		throw Error('Invalid UTF-8 detected');
+	}
+
+	var byteArray;
+	var byteCount;
+	var byteIndex;
+	function utf8decode(byteString, opts) {
+		opts = opts || {};
+		var strict = false !== opts.strict;
+
+		byteArray = ucs2decode(byteString);
+		byteCount = byteArray.length;
+		byteIndex = 0;
+		var codePoints = [];
+		var tmp;
+		while ((tmp = decodeSymbol(strict)) !== false) {
+			codePoints.push(tmp);
+		}
+		return ucs2encode(codePoints);
+	}
+
+	module.exports = {
+		version: '2.1.2',
+		encode: utf8encode,
+		decode: utf8decode
+	};
+
+
+/***/ },
+/* 15 */
+/***/ function(module, exports) {
+
+	/*
+	 * base64-arraybuffer
+	 * https://github.com/niklasvh/base64-arraybuffer
+	 *
+	 * Copyright (c) 2012 Niklas von Hertzen
+	 * Licensed under the MIT license.
+	 */
+	(function(){
+	  "use strict";
+
+	  var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+	  // Use a lookup table to find the index.
+	  var lookup = new Uint8Array(256);
+	  for (var i = 0; i < chars.length; i++) {
+	    lookup[chars.charCodeAt(i)] = i;
+	  }
+
+	  exports.encode = function(arraybuffer) {
+	    var bytes = new Uint8Array(arraybuffer),
+	    i, len = bytes.length, base64 = "";
+
+	    for (i = 0; i < len; i+=3) {
+	      base64 += chars[bytes[i] >> 2];
+	      base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
+	      base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
+	      base64 += chars[bytes[i + 2] & 63];
+	    }
+
+	    if ((len % 3) === 2) {
+	      base64 = base64.substring(0, base64.length - 1) + "=";
+	    } else if (len % 3 === 1) {
+	      base64 = base64.substring(0, base64.length - 2) + "==";
+	    }
+
+	    return base64;
+	  };
+
+	  exports.decode =  function(base64) {
+	    var bufferLength = base64.length * 0.75,
+	    len = base64.length, i, p = 0,
+	    encoded1, encoded2, encoded3, encoded4;
+
+	    if (base64[base64.length - 1] === "=") {
+	      bufferLength--;
+	      if (base64[base64.length - 2] === "=") {
+	        bufferLength--;
+	      }
+	    }
+
+	    var arraybuffer = new ArrayBuffer(bufferLength),
+	    bytes = new Uint8Array(arraybuffer);
+
+	    for (i = 0; i < len; i+=4) {
+	      encoded1 = lookup[base64.charCodeAt(i)];
+	      encoded2 = lookup[base64.charCodeAt(i+1)];
+	      encoded3 = lookup[base64.charCodeAt(i+2)];
+	      encoded4 = lookup[base64.charCodeAt(i+3)];
+
+	      bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
+	      bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
+	      bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
+	    }
+
+	    return arraybuffer;
+	  };
+	})();
+
+
+/***/ },
+/* 16 */
+/***/ function(module, exports) {
+
+	/**
+	 * Create a blob builder even when vendor prefixes exist
+	 */
+
+	var BlobBuilder = typeof BlobBuilder !== 'undefined' ? BlobBuilder :
+	  typeof WebKitBlobBuilder !== 'undefined' ? WebKitBlobBuilder :
+	  typeof MSBlobBuilder !== 'undefined' ? MSBlobBuilder :
+	  typeof MozBlobBuilder !== 'undefined' ? MozBlobBuilder : 
+	  false;
+
+	/**
+	 * Check if Blob constructor is supported
+	 */
+
+	var blobSupported = (function() {
+	  try {
+	    var a = new Blob(['hi']);
+	    return a.size === 2;
+	  } catch(e) {
+	    return false;
+	  }
+	})();
+
+	/**
+	 * Check if Blob constructor supports ArrayBufferViews
+	 * Fails in Safari 6, so we need to map to ArrayBuffers there.
+	 */
+
+	var blobSupportsArrayBufferView = blobSupported && (function() {
+	  try {
+	    var b = new Blob([new Uint8Array([1,2])]);
+	    return b.size === 2;
+	  } catch(e) {
+	    return false;
+	  }
+	})();
+
+	/**
+	 * Check if BlobBuilder is supported
+	 */
+
+	var blobBuilderSupported = BlobBuilder
+	  && BlobBuilder.prototype.append
+	  && BlobBuilder.prototype.getBlob;
+
+	/**
+	 * Helper function that maps ArrayBufferViews to ArrayBuffers
+	 * Used by BlobBuilder constructor and old browsers that didn't
+	 * support it in the Blob constructor.
+	 */
+
+	function mapArrayBufferViews(ary) {
+	  return ary.map(function(chunk) {
+	    if (chunk.buffer instanceof ArrayBuffer) {
+	      var buf = chunk.buffer;
+
+	      // if this is a subarray, make a copy so we only
+	      // include the subarray region from the underlying buffer
+	      if (chunk.byteLength !== buf.byteLength) {
+	        var copy = new Uint8Array(chunk.byteLength);
+	        copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));
+	        buf = copy.buffer;
+	      }
+
+	      return buf;
+	    }
+
+	    return chunk;
+	  });
+	}
+
+	function BlobBuilderConstructor(ary, options) {
+	  options = options || {};
+
+	  var bb = new BlobBuilder();
+	  mapArrayBufferViews(ary).forEach(function(part) {
+	    bb.append(part);
+	  });
+
+	  return (options.type) ? bb.getBlob(options.type) : bb.getBlob();
+	};
+
+	function BlobConstructor(ary, options) {
+	  return new Blob(mapArrayBufferViews(ary), options || {});
+	};
+
+	if (typeof Blob !== 'undefined') {
+	  BlobBuilderConstructor.prototype = Blob.prototype;
+	  BlobConstructor.prototype = Blob.prototype;
+	}
+
+	module.exports = (function() {
+	  if (blobSupported) {
+	    return blobSupportsArrayBufferView ? Blob : BlobConstructor;
+	  } else if (blobBuilderSupported) {
+	    return BlobBuilderConstructor;
+	  } else {
+	    return undefined;
+	  }
+	})();
+
+
+/***/ },
+/* 17 */
+/***/ function(module, exports, __webpack_require__) {
+
+	
+	/**
+	 * Expose `Emitter`.
+	 */
+
+	if (true) {
+	  module.exports = Emitter;
+	}
+
+	/**
+	 * Initialize a new `Emitter`.
+	 *
+	 * @api public
+	 */
+
+	function Emitter(obj) {
+	  if (obj) return mixin(obj);
+	};
+
+	/**
+	 * Mixin the emitter properties.
+	 *
+	 * @param {Object} obj
+	 * @return {Object}
+	 * @api private
+	 */
+
+	function mixin(obj) {
+	  for (var key in Emitter.prototype) {
+	    obj[key] = Emitter.prototype[key];
+	  }
+	  return obj;
+	}
+
+	/**
+	 * Listen on the given `event` with `fn`.
+	 *
+	 * @param {String} event
+	 * @param {Function} fn
+	 * @return {Emitter}
+	 * @api public
+	 */
+
+	Emitter.prototype.on =
+	Emitter.prototype.addEventListener = function(event, fn){
+	  this._callbacks = this._callbacks || {};
+	  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])
+	    .push(fn);
+	  return this;
+	};
+
+	/**
+	 * Adds an `event` listener that will be invoked a single
+	 * time then automatically removed.
+	 *
+	 * @param {String} event
+	 * @param {Function} fn
+	 * @return {Emitter}
+	 * @api public
+	 */
+
+	Emitter.prototype.once = function(event, fn){
+	  function on() {
+	    this.off(event, on);
+	    fn.apply(this, arguments);
+	  }
+
+	  on.fn = fn;
+	  this.on(event, on);
+	  return this;
+	};
+
+	/**
+	 * Remove the given callback for `event` or all
+	 * registered callbacks.
+	 *
+	 * @param {String} event
+	 * @param {Function} fn
+	 * @return {Emitter}
+	 * @api public
+	 */
+
+	Emitter.prototype.off =
+	Emitter.prototype.removeListener =
+	Emitter.prototype.removeAllListeners =
+	Emitter.prototype.removeEventListener = function(event, fn){
+	  this._callbacks = this._callbacks || {};
+
+	  // all
+	  if (0 == arguments.length) {
+	    this._callbacks = {};
+	    return this;
+	  }
+
+	  // specific event
+	  var callbacks = this._callbacks['$' + event];
+	  if (!callbacks) return this;
+
+	  // remove all handlers
+	  if (1 == arguments.length) {
+	    delete this._callbacks['$' + event];
+	    return this;
+	  }
+
+	  // remove specific handler
+	  var cb;
+	  for (var i = 0; i < callbacks.length; i++) {
+	    cb = callbacks[i];
+	    if (cb === fn || cb.fn === fn) {
+	      callbacks.splice(i, 1);
+	      break;
+	    }
+	  }
+	  return this;
+	};
+
+	/**
+	 * Emit `event` with the given args.
+	 *
+	 * @param {String} event
+	 * @param {Mixed} ...
+	 * @return {Emitter}
+	 */
+
+	Emitter.prototype.emit = function(event){
+	  this._callbacks = this._callbacks || {};
+	  var args = [].slice.call(arguments, 1)
+	    , callbacks = this._callbacks['$' + event];
+
+	  if (callbacks) {
+	    callbacks = callbacks.slice(0);
+	    for (var i = 0, len = callbacks.length; i < len; ++i) {
+	      callbacks[i].apply(this, args);
+	    }
+	  }
+
+	  return this;
+	};
+
+	/**
+	 * Return array of callbacks for `event`.
+	 *
+	 * @param {String} event
+	 * @return {Array}
+	 * @api public
+	 */
+
+	Emitter.prototype.listeners = function(event){
+	  this._callbacks = this._callbacks || {};
+	  return this._callbacks['$' + event] || [];
+	};
+
+	/**
+	 * Check if this emitter has `event` handlers.
+	 *
+	 * @param {String} event
+	 * @return {Boolean}
+	 * @api public
+	 */
+
+	Emitter.prototype.hasListeners = function(event){
+	  return !! this.listeners(event).length;
+	};
+
+
+/***/ },
+/* 18 */
+/***/ function(module, exports) {
+
+	/**
+	 * Compiles a querystring
+	 * Returns string representation of the object
+	 *
+	 * @param {Object}
+	 * @api private
+	 */
+
+	exports.encode = function (obj) {
+	  var str = '';
+
+	  for (var i in obj) {
+	    if (obj.hasOwnProperty(i)) {
+	      if (str.length) str += '&';
+	      str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);
+	    }
+	  }
+
+	  return str;
+	};
+
+	/**
+	 * Parses a simple querystring into an object
+	 *
+	 * @param {String} qs
+	 * @api private
+	 */
+
+	exports.decode = function(qs){
+	  var qry = {};
+	  var pairs = qs.split('&');
+	  for (var i = 0, l = pairs.length; i < l; i++) {
+	    var pair = pairs[i].split('=');
+	    qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
+	  }
+	  return qry;
+	};
+
+
+/***/ },
+/* 19 */
+/***/ function(module, exports) {
+
+	
+	module.exports = function(a, b){
+	  var fn = function(){};
+	  fn.prototype = b.prototype;
+	  a.prototype = new fn;
+	  a.prototype.constructor = a;
+	};
+
+/***/ },
+/* 20 */
+/***/ function(module, exports) {
+
+	'use strict';
+
+	var alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('')
+	  , length = 64
+	  , map = {}
+	  , seed = 0
+	  , i = 0
+	  , prev;
+
+	/**
+	 * Return a string representing the specified number.
+	 *
+	 * @param {Number} num The number to convert.
+	 * @returns {String} The string representation of the number.
+	 * @api public
+	 */
+	function encode(num) {
+	  var encoded = '';
+
+	  do {
+	    encoded = alphabet[num % length] + encoded;
+	    num = Math.floor(num / length);
+	  } while (num > 0);
+
+	  return encoded;
+	}
+
+	/**
+	 * Return the integer value specified by the given string.
+	 *
+	 * @param {String} str The string to convert.
+	 * @returns {Number} The integer value represented by the string.
+	 * @api public
+	 */
+	function decode(str) {
+	  var decoded = 0;
+
+	  for (i = 0; i < str.length; i++) {
+	    decoded = decoded * length + map[str.charAt(i)];
+	  }
+
+	  return decoded;
+	}
+
+	/**
+	 * Yeast: A tiny growing id generator.
+	 *
+	 * @returns {String} A unique id.
+	 * @api public
+	 */
+	function yeast() {
+	  var now = encode(+new Date());
+
+	  if (now !== prev) return seed = 0, prev = now;
+	  return now +'.'+ encode(seed++);
+	}
+
+	//
+	// Map each character to its index.
+	//
+	for (; i < length; i++) map[alphabet[i]] = i;
+
+	//
+	// Expose the `yeast`, `encode` and `decode` functions.
+	//
+	yeast.encode = encode;
+	yeast.decode = decode;
+	module.exports = yeast;
+
+
+/***/ },
+/* 21 */
+/***/ function(module, exports, __webpack_require__) {
+
+	/* WEBPACK VAR INJECTION */(function(process) {/**
+	 * This is the web browser implementation of `debug()`.
+	 *
+	 * Expose `debug()` as the module.
+	 */
+
+	exports = module.exports = __webpack_require__(23);
+	exports.log = log;
+	exports.formatArgs = formatArgs;
+	exports.save = save;
+	exports.load = load;
+	exports.useColors = useColors;
+	exports.storage = 'undefined' != typeof chrome
+	               && 'undefined' != typeof chrome.storage
+	                  ? chrome.storage.local
+	                  : localstorage();
+
+	/**
+	 * Colors.
+	 */
+
+	exports.colors = [
+	  '#0000CC', '#0000FF', '#0033CC', '#0033FF', '#0066CC', '#0066FF', '#0099CC',
+	  '#0099FF', '#00CC00', '#00CC33', '#00CC66', '#00CC99', '#00CCCC', '#00CCFF',
+	  '#3300CC', '#3300FF', '#3333CC', '#3333FF', '#3366CC', '#3366FF', '#3399CC',
+	  '#3399FF', '#33CC00', '#33CC33', '#33CC66', '#33CC99', '#33CCCC', '#33CCFF',
+	  '#6600CC', '#6600FF', '#6633CC', '#6633FF', '#66CC00', '#66CC33', '#9900CC',
+	  '#9900FF', '#9933CC', '#9933FF', '#99CC00', '#99CC33', '#CC0000', '#CC0033',
+	  '#CC0066', '#CC0099', '#CC00CC', '#CC00FF', '#CC3300', '#CC3333', '#CC3366',
+	  '#CC3399', '#CC33CC', '#CC33FF', '#CC6600', '#CC6633', '#CC9900', '#CC9933',
+	  '#CCCC00', '#CCCC33', '#FF0000', '#FF0033', '#FF0066', '#FF0099', '#FF00CC',
+	  '#FF00FF', '#FF3300', '#FF3333', '#FF3366', '#FF3399', '#FF33CC', '#FF33FF',
+	  '#FF6600', '#FF6633', '#FF9900', '#FF9933', '#FFCC00', '#FFCC33'
+	];
+
+	/**
+	 * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+	 * and the Firebug extension (any Firefox version) are known
+	 * to support "%c" CSS customizations.
+	 *
+	 * TODO: add a `localStorage` variable to explicitly enable/disable colors
+	 */
+
+	function useColors() {
+	  // NB: In an Electron preload script, document will be defined but not fully
+	  // initialized. Since we know we're in Chrome, we'll just detect this case
+	  // explicitly
+	  if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {
+	    return true;
+	  }
+
+	  // Internet Explorer and Edge do not support colors.
+	  if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
+	    return false;
+	  }
+
+	  // is webkit? http://stackoverflow.com/a/16459606/376773
+	  // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+	  return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
+	    // is firebug? http://stackoverflow.com/a/398120/376773
+	    (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
+	    // is firefox >= v31?
+	    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+	    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
+	    // double check webkit in userAgent just in case we are in a worker
+	    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
+	}
+
+	/**
+	 * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+	 */
+
+	exports.formatters.j = function(v) {
+	  try {
+	    return JSON.stringify(v);
+	  } catch (err) {
+	    return '[UnexpectedJSONParseError]: ' + err.message;
+	  }
+	};
+
+
+	/**
+	 * Colorize log arguments if enabled.
+	 *
+	 * @api public
+	 */
+
+	function formatArgs(args) {
+	  var useColors = this.useColors;
+
+	  args[0] = (useColors ? '%c' : '')
+	    + this.namespace
+	    + (useColors ? ' %c' : ' ')
+	    + args[0]
+	    + (useColors ? '%c ' : ' ')
+	    + '+' + exports.humanize(this.diff);
+
+	  if (!useColors) return;
+
+	  var c = 'color: ' + this.color;
+	  args.splice(1, 0, c, 'color: inherit')
+
+	  // the final "%c" is somewhat tricky, because there could be other
+	  // arguments passed either before or after the %c, so we need to
+	  // figure out the correct index to insert the CSS into
+	  var index = 0;
+	  var lastC = 0;
+	  args[0].replace(/%[a-zA-Z%]/g, function(match) {
+	    if ('%%' === match) return;
+	    index++;
+	    if ('%c' === match) {
+	      // we only are interested in the *last* %c
+	      // (the user may have provided their own)
+	      lastC = index;
+	    }
+	  });
+
+	  args.splice(lastC, 0, c);
+	}
+
+	/**
+	 * Invokes `console.log()` when available.
+	 * No-op when `console.log` is not a "function".
+	 *
+	 * @api public
+	 */
+
+	function log() {
+	  // this hackery is required for IE8/9, where
+	  // the `console.log` function doesn't have 'apply'
+	  return 'object' === typeof console
+	    && console.log
+	    && Function.prototype.apply.call(console.log, console, arguments);
+	}
+
+	/**
+	 * Save `namespaces`.
+	 *
+	 * @param {String} namespaces
+	 * @api private
+	 */
+
+	function save(namespaces) {
+	  try {
+	    if (null == namespaces) {
+	      exports.storage.removeItem('debug');
+	    } else {
+	      exports.storage.debug = namespaces;
+	    }
+	  } catch(e) {}
+	}
+
+	/**
+	 * Load `namespaces`.
+	 *
+	 * @return {String} returns the previously persisted debug modes
+	 * @api private
+	 */
+
+	function load() {
+	  var r;
+	  try {
+	    r = exports.storage.debug;
+	  } catch(e) {}
+
+	  // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
+	  if (!r && typeof process !== 'undefined' && 'env' in process) {
+	    r = process.env.DEBUG;
+	  }
+
+	  return r;
+	}
+
+	/**
+	 * Enable namespaces listed in `localStorage.debug` initially.
+	 */
+
+	exports.enable(load());
+
+	/**
+	 * Localstorage attempts to return the localstorage.
+	 *
+	 * This is necessary because safari throws
+	 * when a user disables cookies/localstorage
+	 * and you attempt to access it.
+	 *
+	 * @return {LocalStorage}
+	 * @api private
+	 */
+
+	function localstorage() {
+	  try {
+	    return window.localStorage;
+	  } catch (e) {}
+	}
+
+	/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(22)))
+
+/***/ },
+/* 22 */
+/***/ function(module, exports) {
+
+	// shim for using process in browser
+	var process = module.exports = {};
+
+	// cached from whatever global is present so that test runners that stub it
+	// don't break things.  But we need to wrap it in a try catch in case it is
+	// wrapped in strict mode code which doesn't define any globals.  It's inside a
+	// function because try/catches deoptimize in certain engines.
+
+	var cachedSetTimeout;
+	var cachedClearTimeout;
+
+	function defaultSetTimout() {
+	    throw new Error('setTimeout has not been defined');
+	}
+	function defaultClearTimeout () {
+	    throw new Error('clearTimeout has not been defined');
+	}
+	(function () {
+	    try {
+	        if (typeof setTimeout === 'function') {
+	            cachedSetTimeout = setTimeout;
+	        } else {
+	            cachedSetTimeout = defaultSetTimout;
+	        }
+	    } catch (e) {
+	        cachedSetTimeout = defaultSetTimout;
+	    }
+	    try {
+	        if (typeof clearTimeout === 'function') {
+	            cachedClearTimeout = clearTimeout;
+	        } else {
+	            cachedClearTimeout = defaultClearTimeout;
+	        }
+	    } catch (e) {
+	        cachedClearTimeout = defaultClearTimeout;
+	    }
+	} ())
+	function runTimeout(fun) {
+	    if (cachedSetTimeout === setTimeout) {
+	        //normal enviroments in sane situations
+	        return setTimeout(fun, 0);
+	    }
+	    // if setTimeout wasn't available but was latter defined
+	    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
+	        cachedSetTimeout = setTimeout;
+	        return setTimeout(fun, 0);
+	    }
+	    try {
+	        // when when somebody has screwed with setTimeout but no I.E. maddness
+	        return cachedSetTimeout(fun, 0);
+	    } catch(e){
+	        try {
+	            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
+	            return cachedSetTimeout.call(null, fun, 0);
+	        } catch(e){
+	            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
+	            return cachedSetTimeout.call(this, fun, 0);
+	        }
+	    }
+
+
+	}
+	function runClearTimeout(marker) {
+	    if (cachedClearTimeout === clearTimeout) {
+	        //normal enviroments in sane situations
+	        return clearTimeout(marker);
+	    }
+	    // if clearTimeout wasn't available but was latter defined
+	    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
+	        cachedClearTimeout = clearTimeout;
+	        return clearTimeout(marker);
+	    }
+	    try {
+	        // when when somebody has screwed with setTimeout but no I.E. maddness
+	        return cachedClearTimeout(marker);
+	    } catch (e){
+	        try {
+	            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
+	            return cachedClearTimeout.call(null, marker);
+	        } catch (e){
+	            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
+	            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
+	            return cachedClearTimeout.call(this, marker);
+	        }
+	    }
+
+
+
+	}
+	var queue = [];
+	var draining = false;
+	var currentQueue;
+	var queueIndex = -1;
+
+	function cleanUpNextTick() {
+	    if (!draining || !currentQueue) {
+	        return;
+	    }
+	    draining = false;
+	    if (currentQueue.length) {
+	        queue = currentQueue.concat(queue);
+	    } else {
+	        queueIndex = -1;
+	    }
+	    if (queue.length) {
+	        drainQueue();
+	    }
+	}
+
+	function drainQueue() {
+	    if (draining) {
+	        return;
+	    }
+	    var timeout = runTimeout(cleanUpNextTick);
+	    draining = true;
+
+	    var len = queue.length;
+	    while(len) {
+	        currentQueue = queue;
+	        queue = [];
+	        while (++queueIndex < len) {
+	            if (currentQueue) {
+	                currentQueue[queueIndex].run();
+	            }
+	        }
+	        queueIndex = -1;
+	        len = queue.length;
+	    }
+	    currentQueue = null;
+	    draining = false;
+	    runClearTimeout(timeout);
+	}
+
+	process.nextTick = function (fun) {
+	    var args = new Array(arguments.length - 1);
+	    if (arguments.length > 1) {
+	        for (var i = 1; i < arguments.length; i++) {
+	            args[i - 1] = arguments[i];
+	        }
+	    }
+	    queue.push(new Item(fun, args));
+	    if (queue.length === 1 && !draining) {
+	        runTimeout(drainQueue);
+	    }
+	};
+
+	// v8 likes predictible objects
+	function Item(fun, array) {
+	    this.fun = fun;
+	    this.array = array;
+	}
+	Item.prototype.run = function () {
+	    this.fun.apply(null, this.array);
+	};
+	process.title = 'browser';
+	process.browser = true;
+	process.env = {};
+	process.argv = [];
+	process.version = ''; // empty string to avoid regexp issues
+	process.versions = {};
+
+	function noop() {}
+
+	process.on = noop;
+	process.addListener = noop;
+	process.once = noop;
+	process.off = noop;
+	process.removeListener = noop;
+	process.removeAllListeners = noop;
+	process.emit = noop;
+	process.prependListener = noop;
+	process.prependOnceListener = noop;
+
+	process.listeners = function (name) { return [] }
+
+	process.binding = function (name) {
+	    throw new Error('process.binding is not supported');
+	};
+
+	process.cwd = function () { return '/' };
+	process.chdir = function (dir) {
+	    throw new Error('process.chdir is not supported');
+	};
+	process.umask = function() { return 0; };
+
+
+/***/ },
+/* 23 */
+/***/ function(module, exports, __webpack_require__) {
+
+	
+	/**
+	 * This is the common logic for both the Node.js and web browser
+	 * implementations of `debug()`.
+	 *
+	 * Expose `debug()` as the module.
+	 */
+
+	exports = module.exports = createDebug.debug = createDebug['default'] = createDebug;
+	exports.coerce = coerce;
+	exports.disable = disable;
+	exports.enable = enable;
+	exports.enabled = enabled;
+	exports.humanize = __webpack_require__(24);
+
+	/**
+	 * Active `debug` instances.
+	 */
+	exports.instances = [];
+
+	/**
+	 * The currently active debug mode names, and names to skip.
+	 */
+
+	exports.names = [];
+	exports.skips = [];
+
+	/**
+	 * Map of special "%n" handling functions, for the debug "format" argument.
+	 *
+	 * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
+	 */
+
+	exports.formatters = {};
+
+	/**
+	 * Select a color.
+	 * @param {String} namespace
+	 * @return {Number}
+	 * @api private
+	 */
+
+	function selectColor(namespace) {
+	  var hash = 0, i;
+
+	  for (i in namespace) {
+	    hash  = ((hash << 5) - hash) + namespace.charCodeAt(i);
+	    hash |= 0; // Convert to 32bit integer
+	  }
+
+	  return exports.colors[Math.abs(hash) % exports.colors.length];
+	}
+
+	/**
+	 * Create a debugger with the given `namespace`.
+	 *
+	 * @param {String} namespace
+	 * @return {Function}
+	 * @api public
+	 */
+
+	function createDebug(namespace) {
+
+	  var prevTime;
+
+	  function debug() {
+	    // disabled?
+	    if (!debug.enabled) return;
+
+	    var self = debug;
+
+	    // set `diff` timestamp
+	    var curr = +new Date();
+	    var ms = curr - (prevTime || curr);
+	    self.diff = ms;
+	    self.prev = prevTime;
+	    self.curr = curr;
+	    prevTime = curr;
+
+	    // turn the `arguments` into a proper Array
+	    var args = new Array(arguments.length);
+	    for (var i = 0; i < args.length; i++) {
+	      args[i] = arguments[i];
+	    }
+
+	    args[0] = exports.coerce(args[0]);
+
+	    if ('string' !== typeof args[0]) {
+	      // anything else let's inspect with %O
+	      args.unshift('%O');
+	    }
+
+	    // apply any `formatters` transformations
+	    var index = 0;
+	    args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {
+	      // if we encounter an escaped % then don't increase the array index
+	      if (match === '%%') return match;
+	      index++;
+	      var formatter = exports.formatters[format];
+	      if ('function' === typeof formatter) {
+	        var val = args[index];
+	        match = formatter.call(self, val);
+
+	        // now we need to remove `args[index]` since it's inlined in the `format`
+	        args.splice(index, 1);
+	        index--;
+	      }
+	      return match;
+	    });
+
+	    // apply env-specific formatting (colors, etc.)
+	    exports.formatArgs.call(self, args);
+
+	    var logFn = debug.log || exports.log || console.log.bind(console);
+	    logFn.apply(self, args);
+	  }
+
+	  debug.namespace = namespace;
+	  debug.enabled = exports.enabled(namespace);
+	  debug.useColors = exports.useColors();
+	  debug.color = selectColor(namespace);
+	  debug.destroy = destroy;
+
+	  // env-specific initialization logic for debug instances
+	  if ('function' === typeof exports.init) {
+	    exports.init(debug);
+	  }
+
+	  exports.instances.push(debug);
+
+	  return debug;
+	}
+
+	function destroy () {
+	  var index = exports.instances.indexOf(this);
+	  if (index !== -1) {
+	    exports.instances.splice(index, 1);
+	    return true;
+	  } else {
+	    return false;
+	  }
+	}
+
+	/**
+	 * Enables a debug mode by namespaces. This can include modes
+	 * separated by a colon and wildcards.
+	 *
+	 * @param {String} namespaces
+	 * @api public
+	 */
+
+	function enable(namespaces) {
+	  exports.save(namespaces);
+
+	  exports.names = [];
+	  exports.skips = [];
+
+	  var i;
+	  var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
+	  var len = split.length;
+
+	  for (i = 0; i < len; i++) {
+	    if (!split[i]) continue; // ignore empty strings
+	    namespaces = split[i].replace(/\*/g, '.*?');
+	    if (namespaces[0] === '-') {
+	      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
+	    } else {
+	      exports.names.push(new RegExp('^' + namespaces + '$'));
+	    }
+	  }
+
+	  for (i = 0; i < exports.instances.length; i++) {
+	    var instance = exports.instances[i];
+	    instance.enabled = exports.enabled(instance.namespace);
+	  }
+	}
+
+	/**
+	 * Disable debug output.
+	 *
+	 * @api public
+	 */
+
+	function disable() {
+	  exports.enable('');
+	}
+
+	/**
+	 * Returns true if the given mode name is enabled, false otherwise.
+	 *
+	 * @param {String} name
+	 * @return {Boolean}
+	 * @api public
+	 */
+
+	function enabled(name) {
+	  if (name[name.length - 1] === '*') {
+	    return true;
+	  }
+	  var i, len;
+	  for (i = 0, len = exports.skips.length; i < len; i++) {
+	    if (exports.skips[i].test(name)) {
+	      return false;
+	    }
+	  }
+	  for (i = 0, len = exports.names.length; i < len; i++) {
+	    if (exports.names[i].test(name)) {
+	      return true;
+	    }
+	  }
+	  return false;
+	}
+
+	/**
+	 * Coerce `val`.
+	 *
+	 * @param {Mixed} val
+	 * @return {Mixed}
+	 * @api private
+	 */
+
+	function coerce(val) {
+	  if (val instanceof Error) return val.stack || val.message;
+	  return val;
+	}
+
+
+/***/ },
+/* 24 */
+/***/ function(module, exports) {
+
+	/**
+	 * Helpers.
+	 */
+
+	var s = 1000;
+	var m = s * 60;
+	var h = m * 60;
+	var d = h * 24;
+	var y = d * 365.25;
+
+	/**
+	 * Parse or format the given `val`.
+	 *
+	 * Options:
+	 *
+	 *  - `long` verbose formatting [false]
+	 *
+	 * @param {String|Number} val
+	 * @param {Object} [options]
+	 * @throws {Error} throw an error if val is not a non-empty string or a number
+	 * @return {String|Number}
+	 * @api public
+	 */
+
+	module.exports = function(val, options) {
+	  options = options || {};
+	  var type = typeof val;
+	  if (type === 'string' && val.length > 0) {
+	    return parse(val);
+	  } else if (type === 'number' && isNaN(val) === false) {
+	    return options.long ? fmtLong(val) : fmtShort(val);
+	  }
+	  throw new Error(
+	    'val is not a non-empty string or a valid number. val=' +
+	      JSON.stringify(val)
+	  );
+	};
+
+	/**
+	 * Parse the given `str` and return milliseconds.
+	 *
+	 * @param {String} str
+	 * @return {Number}
+	 * @api private
+	 */
+
+	function parse(str) {
+	  str = String(str);
+	  if (str.length > 100) {
+	    return;
+	  }
+	  var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(
+	    str
+	  );
+	  if (!match) {
+	    return;
+	  }
+	  var n = parseFloat(match[1]);
+	  var type = (match[2] || 'ms').toLowerCase();
+	  switch (type) {
+	    case 'years':
+	    case 'year':
+	    case 'yrs':
+	    case 'yr':
+	    case 'y':
+	      return n * y;
+	    case 'days':
+	    case 'day':
+	    case 'd':
+	      return n * d;
+	    case 'hours':
+	    case 'hour':
+	    case 'hrs':
+	    case 'hr':
+	    case 'h':
+	      return n * h;
+	    case 'minutes':
+	    case 'minute':
+	    case 'mins':
+	    case 'min':
+	    case 'm':
+	      return n * m;
+	    case 'seconds':
+	    case 'second':
+	    case 'secs':
+	    case 'sec':
+	    case 's':
+	      return n * s;
+	    case 'milliseconds':
+	    case 'millisecond':
+	    case 'msecs':
+	    case 'msec':
+	    case 'ms':
+	      return n;
+	    default:
+	      return undefined;
+	  }
+	}
+
+	/**
+	 * Short format for `ms`.
+	 *
+	 * @param {Number} ms
+	 * @return {String}
+	 * @api private
+	 */
+
+	function fmtShort(ms) {
+	  if (ms >= d) {
+	    return Math.round(ms / d) + 'd';
+	  }
+	  if (ms >= h) {
+	    return Math.round(ms / h) + 'h';
+	  }
+	  if (ms >= m) {
+	    return Math.round(ms / m) + 'm';
+	  }
+	  if (ms >= s) {
+	    return Math.round(ms / s) + 's';
+	  }
+	  return ms + 'ms';
+	}
+
+	/**
+	 * Long format for `ms`.
+	 *
+	 * @param {Number} ms
+	 * @return {String}
+	 * @api private
+	 */
+
+	function fmtLong(ms) {
+	  return plural(ms, d, 'day') ||
+	    plural(ms, h, 'hour') ||
+	    plural(ms, m, 'minute') ||
+	    plural(ms, s, 'second') ||
+	    ms + ' ms';
+	}
+
+	/**
+	 * Pluralization helper.
+	 */
+
+	function plural(ms, n, name) {
+	  if (ms < n) {
+	    return;
+	  }
+	  if (ms < n * 1.5) {
+	    return Math.floor(ms / n) + ' ' + name;
+	  }
+	  return Math.ceil(ms / n) + ' ' + name + 's';
+	}
+
+
+/***/ },
+/* 25 */
+/***/ function(module, exports, __webpack_require__) {
+
+	/* WEBPACK VAR INJECTION */(function(global) {'use strict';
+
+	/**
+	 * Module requirements.
+	 */
+
+	var Polling = __webpack_require__(6);
+	var inherit = __webpack_require__(19);
+
+	/**
+	 * Module exports.
+	 */
+
+	module.exports = JSONPPolling;
+
+	/**
+	 * Cached regular expressions.
+	 */
+
+	var rNewline = /\n/g;
+	var rEscapedNewline = /\\n/g;
+
+	/**
+	 * Global JSONP callbacks.
+	 */
+
+	var callbacks;
+
+	/**
+	 * Noop.
+	 */
+
+	function empty() {}
+
+	/**
+	 * Until https://github.com/tc39/proposal-global is shipped.
+	 */
+	function glob() {
+	  return typeof self !== 'undefined' ? self : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : {};
+	}
+
+	/**
+	 * JSONP Polling constructor.
+	 *
+	 * @param {Object} opts.
+	 * @api public
+	 */
+
+	function JSONPPolling(opts) {
+	  Polling.call(this, opts);
+
+	  this.query = this.query || {};
+
+	  // define global callbacks array if not present
+	  // we do this here (lazily) to avoid unneeded global pollution
+	  if (!callbacks) {
+	    // we need to consider multiple engines in the same page
+	    var global = glob();
+	    callbacks = global.___eio = global.___eio || [];
+	  }
+
+	  // callback identifier
+	  this.index = callbacks.length;
+
+	  // add callback to jsonp global
+	  var self = this;
+	  callbacks.push(function (msg) {
+	    self.onData(msg);
+	  });
+
+	  // append to query string
+	  this.query.j = this.index;
+
+	  // prevent spurious errors from being emitted when the window is unloaded
+	  if (typeof addEventListener === 'function') {
+	    addEventListener('beforeunload', function () {
+	      if (self.script) self.script.onerror = empty;
+	    }, false);
+	  }
+	}
+
+	/**
+	 * Inherits from Polling.
+	 */
+
+	inherit(JSONPPolling, Polling);
+
+	/*
+	 * JSONP only supports binary as base64 encoded strings
+	 */
+
+	JSONPPolling.prototype.supportsBinary = false;
+
+	/**
+	 * Closes the socket.
+	 *
+	 * @api private
+	 */
+
+	JSONPPolling.prototype.doClose = function () {
+	  if (this.script) {
+	    this.script.parentNode.removeChild(this.script);
+	    this.script = null;
+	  }
+
+	  if (this.form) {
+	    this.form.parentNode.removeChild(this.form);
+	    this.form = null;
+	    this.iframe = null;
+	  }
+
+	  Polling.prototype.doClose.call(this);
+	};
+
+	/**
+	 * Starts a poll cycle.
+	 *
+	 * @api private
+	 */
+
+	JSONPPolling.prototype.doPoll = function () {
+	  var self = this;
+	  var script = document.createElement('script');
+
+	  if (this.script) {
+	    this.script.parentNode.removeChild(this.script);
+	    this.script = null;
+	  }
+
+	  script.async = true;
+	  script.src = this.uri();
+	  script.onerror = function (e) {
+	    self.onError('jsonp poll error', e);
+	  };
+
+	  var insertAt = document.getElementsByTagName('script')[0];
+	  if (insertAt) {
+	    insertAt.parentNode.insertBefore(script, insertAt);
+	  } else {
+	    (document.head || document.body).appendChild(script);
+	  }
+	  this.script = script;
+
+	  var isUAgecko = 'undefined' !== typeof navigator && /gecko/i.test(navigator.userAgent);
+
+	  if (isUAgecko) {
+	    setTimeout(function () {
+	      var iframe = document.createElement('iframe');
+	      document.body.appendChild(iframe);
+	      document.body.removeChild(iframe);
+	    }, 100);
+	  }
+	};
+
+	/**
+	 * Writes with a hidden iframe.
+	 *
+	 * @param {String} data to send
+	 * @param {Function} called upon flush.
+	 * @api private
+	 */
+
+	JSONPPolling.prototype.doWrite = function (data, fn) {
+	  var self = this;
+
+	  if (!this.form) {
+	    var form = document.createElement('form');
+	    var area = document.createElement('textarea');
+	    var id = this.iframeId = 'eio_iframe_' + this.index;
+	    var iframe;
+
+	    form.className = 'socketio';
+	    form.style.position = 'absolute';
+	    form.style.top = '-1000px';
+	    form.style.left = '-1000px';
+	    form.target = id;
+	    form.method = 'POST';
+	    form.setAttribute('accept-charset', 'utf-8');
+	    area.name = 'd';
+	    form.appendChild(area);
+	    document.body.appendChild(form);
+
+	    this.form = form;
+	    this.area = area;
+	  }
+
+	  this.form.action = this.uri();
+
+	  function complete() {
+	    initIframe();
+	    fn();
+	  }
+
+	  function initIframe() {
+	    if (self.iframe) {
+	      try {
+	        self.form.removeChild(self.iframe);
+	      } catch (e) {
+	        self.onError('jsonp polling iframe removal error', e);
+	      }
+	    }
+
+	    try {
+	      // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
+	      var html = '<iframe src="javascript:0" name="' + self.iframeId + '">';
+	      iframe = document.createElement(html);
+	    } catch (e) {
+	      iframe = document.createElement('iframe');
+	      iframe.name = self.iframeId;
+	      iframe.src = 'javascript:0';
+	    }
+
+	    iframe.id = self.iframeId;
+
+	    self.form.appendChild(iframe);
+	    self.iframe = iframe;
+	  }
+
+	  initIframe();
+
+	  // escape \n to prevent it from being converted into \r\n by some UAs
+	  // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side
+	  data = data.replace(rEscapedNewline, '\\\n');
+	  this.area.value = data.replace(rNewline, '\\n');
+
+	  try {
+	    this.form.submit();
+	  } catch (e) {}
+
+	  if (this.iframe.attachEvent) {
+	    this.iframe.onreadystatechange = function () {
+	      if (self.iframe.readyState === 'complete') {
+	        complete();
+	      }
+	    };
+	  } else {
+	    this.iframe.onload = complete;
+	  }
+	};
+	/* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }())))
+
+/***/ },
+/* 26 */
+/***/ function(module, exports, __webpack_require__) {
+
+	'use strict';
+
+	/**
+	 * Module dependencies.
+	 */
+
+	var Transport = __webpack_require__(7);
+	var parser = __webpack_require__(8);
+	var parseqs = __webpack_require__(18);
+	var inherit = __webpack_require__(19);
+	var yeast = __webpack_require__(20);
+	var debug = __webpack_require__(21)('engine.io-client:websocket');
+
+	var BrowserWebSocket, NodeWebSocket;
+
+	if (typeof WebSocket !== 'undefined') {
+	  BrowserWebSocket = WebSocket;
+	} else if (typeof self !== 'undefined') {
+	  BrowserWebSocket = self.WebSocket || self.MozWebSocket;
+	} else {
+	  try {
+	    NodeWebSocket = __webpack_require__(27);
+	  } catch (e) {}
+	}
+
+	/**
+	 * Get either the `WebSocket` or `MozWebSocket` globals
+	 * in the browser or try to resolve WebSocket-compatible
+	 * interface exposed by `ws` for Node-like environment.
+	 */
+
+	var WebSocketImpl = BrowserWebSocket || NodeWebSocket;
+
+	/**
+	 * Module exports.
+	 */
+
+	module.exports = WS;
+
+	/**
+	 * WebSocket transport constructor.
+	 *
+	 * @api {Object} connection options
+	 * @api public
+	 */
+
+	function WS(opts) {
+	  var forceBase64 = opts && opts.forceBase64;
+	  if (forceBase64) {
+	    this.supportsBinary = false;
+	  }
+	  this.perMessageDeflate = opts.perMessageDeflate;
+	  this.usingBrowserWebSocket = BrowserWebSocket && !opts.forceNode;
+	  this.protocols = opts.protocols;
+	  if (!this.usingBrowserWebSocket) {
+	    WebSocketImpl = NodeWebSocket;
+	  }
+	  Transport.call(this, opts);
+	}
+
+	/**
+	 * Inherits from Transport.
+	 */
+
+	inherit(WS, Transport);
+
+	/**
+	 * Transport name.
+	 *
+	 * @api public
+	 */
+
+	WS.prototype.name = 'websocket';
+
+	/*
+	 * WebSockets support binary
+	 */
+
+	WS.prototype.supportsBinary = true;
+
+	/**
+	 * Opens socket.
+	 *
+	 * @api private
+	 */
+
+	WS.prototype.doOpen = function () {
+	  if (!this.check()) {
+	    // let probe timeout
+	    return;
+	  }
+
+	  var uri = this.uri();
+	  var protocols = this.protocols;
+	  var opts = {
+	    agent: this.agent,
+	    perMessageDeflate: this.perMessageDeflate
+	  };
+
+	  // SSL options for Node.js client
+	  opts.pfx = this.pfx;
+	  opts.key = this.key;
+	  opts.passphrase = this.passphrase;
+	  opts.cert = this.cert;
+	  opts.ca = this.ca;
+	  opts.ciphers = this.ciphers;
+	  opts.rejectUnauthorized = this.rejectUnauthorized;
+	  if (this.extraHeaders) {
+	    opts.headers = this.extraHeaders;
+	  }
+	  if (this.localAddress) {
+	    opts.localAddress = this.localAddress;
+	  }
+
+	  try {
+	    this.ws = this.usingBrowserWebSocket && !this.isReactNative ? protocols ? new WebSocketImpl(uri, protocols) : new WebSocketImpl(uri) : new WebSocketImpl(uri, protocols, opts);
+	  } catch (err) {
+	    return this.emit('error', err);
+	  }
+
+	  if (this.ws.binaryType === undefined) {
+	    this.supportsBinary = false;
+	  }
+
+	  if (this.ws.supports && this.ws.supports.binary) {
+	    this.supportsBinary = true;
+	    this.ws.binaryType = 'nodebuffer';
+	  } else {
+	    this.ws.binaryType = 'arraybuffer';
+	  }
+
+	  this.addEventListeners();
+	};
+
+	/**
+	 * Adds event listeners to the socket
+	 *
+	 * @api private
+	 */
+
+	WS.prototype.addEventListeners = function () {
+	  var self = this;
+
+	  this.ws.onopen = function () {
+	    self.onOpen();
+	  };
+	  this.ws.onclose = function () {
+	    self.onClose();
+	  };
+	  this.ws.onmessage = function (ev) {
+	    self.onData(ev.data);
+	  };
+	  this.ws.onerror = function (e) {
+	    self.onError('websocket error', e);
+	  };
+	};
+
+	/**
+	 * Writes data to socket.
+	 *
+	 * @param {Array} array of packets.
+	 * @api private
+	 */
+
+	WS.prototype.write = function (packets) {
+	  var self = this;
+	  this.writable = false;
+
+	  // encodePacket efficient as it uses WS framing
+	  // no need for encodePayload
+	  var total = packets.length;
+	  for (var i = 0, l = total; i < l; i++) {
+	    (function (packet) {
+	      parser.encodePacket(packet, self.supportsBinary, function (data) {
+	        if (!self.usingBrowserWebSocket) {
+	          // always create a new object (GH-437)
+	          var opts = {};
+	          if (packet.options) {
+	            opts.compress = packet.options.compress;
+	          }
+
+	          if (self.perMessageDeflate) {
+	            var len = 'string' === typeof data ? Buffer.byteLength(data) : data.length;
+	            if (len < self.perMessageDeflate.threshold) {
+	              opts.compress = false;
+	            }
+	          }
+	        }
+
+	        // Sometimes the websocket has already been closed but the browser didn't
+	        // have a chance of informing us about it yet, in that case send will
+	        // throw an error
+	        try {
+	          if (self.usingBrowserWebSocket) {
+	            // TypeError is thrown when passing the second argument on Safari
+	            self.ws.send(data);
+	          } else {
+	            self.ws.send(data, opts);
+	          }
+	        } catch (e) {
+	          debug('websocket closed before onclose event');
+	        }
+
+	        --total || done();
+	      });
+	    })(packets[i]);
+	  }
+
+	  function done() {
+	    self.emit('flush');
+
+	    // fake drain
+	    // defer to next tick to allow Socket to clear writeBuffer
+	    setTimeout(function () {
+	      self.writable = true;
+	      self.emit('drain');
+	    }, 0);
+	  }
+	};
+
+	/**
+	 * Called upon close
+	 *
+	 * @api private
+	 */
+
+	WS.prototype.onClose = function () {
+	  Transport.prototype.onClose.call(this);
+	};
+
+	/**
+	 * Closes socket.
+	 *
+	 * @api private
+	 */
+
+	WS.prototype.doClose = function () {
+	  if (typeof this.ws !== 'undefined') {
+	    this.ws.close();
+	  }
+	};
+
+	/**
+	 * Generates uri for connection.
+	 *
+	 * @api private
+	 */
+
+	WS.prototype.uri = function () {
+	  var query = this.query || {};
+	  var schema = this.secure ? 'wss' : 'ws';
+	  var port = '';
+
+	  // avoid port if default for schema
+	  if (this.port && ('wss' === schema && Number(this.port) !== 443 || 'ws' === schema && Number(this.port) !== 80)) {
+	    port = ':' + this.port;
+	  }
+
+	  // append timestamp to URI
+	  if (this.timestampRequests) {
+	    query[this.timestampParam] = yeast();
+	  }
+
+	  // communicate binary support capabilities
+	  if (!this.supportsBinary) {
+	    query.b64 = 1;
+	  }
+
+	  query = parseqs.encode(query);
+
+	  // prepend ? to query
+	  if (query.length) {
+	    query = '?' + query;
+	  }
+
+	  var ipv6 = this.hostname.indexOf(':') !== -1;
+	  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;
+	};
+
+	/**
+	 * Feature detection for WebSocket.
+	 *
+	 * @return {Boolean} whether this transport is available.
+	 * @api public
+	 */
+
+	WS.prototype.check = function () {
+	  return !!WebSocketImpl && !('__initialize' in WebSocketImpl && this.name === WS.prototype.name);
+	};
+
+/***/ },
+/* 27 */
+/***/ function(module, exports) {
+
+	/* (ignored) */
+
+/***/ },
+/* 28 */
+/***/ function(module, exports) {
+
+	
+	var indexOf = [].indexOf;
+
+	module.exports = function(arr, obj){
+	  if (indexOf) return arr.indexOf(obj);
+	  for (var i = 0; i < arr.length; ++i) {
+	    if (arr[i] === obj) return i;
+	  }
+	  return -1;
+	};
+
+/***/ },
+/* 29 */
+/***/ function(module, exports) {
+
+	/**
+	 * Parses an URI
+	 *
+	 * @author Steven Levithan <stevenlevithan.com> (MIT license)
+	 * @api private
+	 */
+
+	var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
+
+	var parts = [
+	    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'
+	];
+
+	module.exports = function parseuri(str) {
+	    var src = str,
+	        b = str.indexOf('['),
+	        e = str.indexOf(']');
+
+	    if (b != -1 && e != -1) {
+	        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);
+	    }
+
+	    var m = re.exec(str || ''),
+	        uri = {},
+	        i = 14;
+
+	    while (i--) {
+	        uri[parts[i]] = m[i] || '';
+	    }
+
+	    if (b != -1 && e != -1) {
+	        uri.source = src;
+	        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');
+	        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');
+	        uri.ipv6uri = true;
+	    }
+
+	    return uri;
+	};
+
+
+/***/ }
+/******/ ])
+});
+;
\ No newline at end of file
diff --git a/helloworld/node_modules/engine.io-client/lib/index.js b/helloworld/node_modules/engine.io-client/lib/index.js
new file mode 100755
index 0000000..0bf4058
--- /dev/null
+++ b/helloworld/node_modules/engine.io-client/lib/index.js
@@ -0,0 +1,10 @@
+
+module.exports = require('./socket');
+
+/**
+ * Exports parser
+ *
+ * @api public
+ *
+ */
+module.exports.parser = require('engine.io-parser');
diff --git a/helloworld/node_modules/engine.io-client/lib/socket.js b/helloworld/node_modules/engine.io-client/lib/socket.js
new file mode 100755
index 0000000..0800a1a
--- /dev/null
+++ b/helloworld/node_modules/engine.io-client/lib/socket.js
@@ -0,0 +1,746 @@
+/**
+ * Module dependencies.
+ */
+
+var transports = require('./transports/index');
+var Emitter = require('component-emitter');
+var debug = require('debug')('engine.io-client:socket');
+var index = require('indexof');
+var parser = require('engine.io-parser');
+var parseuri = require('parseuri');
+var parseqs = require('parseqs');
+
+/**
+ * Module exports.
+ */
+
+module.exports = Socket;
+
+/**
+ * Socket constructor.
+ *
+ * @param {String|Object} uri or options
+ * @param {Object} options
+ * @api public
+ */
+
+function Socket (uri, opts) {
+  if (!(this instanceof Socket)) return new Socket(uri, opts);
+
+  opts = opts || {};
+
+  if (uri && 'object' === typeof uri) {
+    opts = uri;
+    uri = null;
+  }
+
+  if (uri) {
+    uri = parseuri(uri);
+    opts.hostname = uri.host;
+    opts.secure = uri.protocol === 'https' || uri.protocol === 'wss';
+    opts.port = uri.port;
+    if (uri.query) opts.query = uri.query;
+  } else if (opts.host) {
+    opts.hostname = parseuri(opts.host).host;
+  }
+
+  this.secure = null != opts.secure ? opts.secure
+    : (typeof location !== 'undefined' && 'https:' === location.protocol);
+
+  if (opts.hostname && !opts.port) {
+    // if no port is specified manually, use the protocol default
+    opts.port = this.secure ? '443' : '80';
+  }
+
+  this.agent = opts.agent || false;
+  this.hostname = opts.hostname ||
+    (typeof location !== 'undefined' ? location.hostname : 'localhost');
+  this.port = opts.port || (typeof location !== 'undefined' && location.port
+      ? location.port
+      : (this.secure ? 443 : 80));
+  this.query = opts.query || {};
+  if ('string' === typeof this.query) this.query = parseqs.decode(this.query);
+  this.upgrade = false !== opts.upgrade;
+  this.path = (opts.path || '/engine.io').replace(/\/$/, '') + '/';
+  this.forceJSONP = !!opts.forceJSONP;
+  this.jsonp = false !== opts.jsonp;
+  this.forceBase64 = !!opts.forceBase64;
+  this.enablesXDR = !!opts.enablesXDR;
+  this.timestampParam = opts.timestampParam || 't';
+  this.timestampRequests = opts.timestampRequests;
+  this.transports = opts.transports || ['polling', 'websocket'];
+  this.transportOptions = opts.transportOptions || {};
+  this.readyState = '';
+  this.writeBuffer = [];
+  this.prevBufferLen = 0;
+  this.policyPort = opts.policyPort || 843;
+  this.rememberUpgrade = opts.rememberUpgrade || false;
+  this.binaryType = null;
+  this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;
+  this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || {}) : false;
+
+  if (true === this.perMessageDeflate) this.perMessageDeflate = {};
+  if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) {
+    this.perMessageDeflate.threshold = 1024;
+  }
+
+  // SSL options for Node.js client
+  this.pfx = opts.pfx || null;
+  this.key = opts.key || null;
+  this.passphrase = opts.passphrase || null;
+  this.cert = opts.cert || null;
+  this.ca = opts.ca || null;
+  this.ciphers = opts.ciphers || null;
+  this.rejectUnauthorized = opts.rejectUnauthorized === undefined ? true : opts.rejectUnauthorized;
+  this.forceNode = !!opts.forceNode;
+
+  // detect ReactNative environment
+  this.isReactNative = (typeof navigator !== 'undefined' && typeof navigator.product === 'string' && navigator.product.toLowerCase() === 'reactnative');
+
+  // other options for Node.js or ReactNative client
+  if (typeof self === 'undefined' || this.isReactNative) {
+    if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) {
+      this.extraHeaders = opts.extraHeaders;
+    }
+
+    if (opts.localAddress) {
+      this.localAddress = opts.localAddress;
+    }
+  }
+
+  // set on handshake
+  this.id = null;
+  this.upgrades = null;
+  this.pingInterval = null;
+  this.pingTimeout = null;
+
+  // set on heartbeat
+  this.pingIntervalTimer = null;
+  this.pingTimeoutTimer = null;
+
+  this.open();
+}
+
+Socket.priorWebsocketSuccess = false;
+
+/**
+ * Mix in `Emitter`.
+ */
+
+Emitter(Socket.prototype);
+
+/**
+ * Protocol version.
+ *
+ * @api public
+ */
+
+Socket.protocol = parser.protocol; // this is an int
+
+/**
+ * Expose deps for legacy compatibility
+ * and standalone browser access.
+ */
+
+Socket.Socket = Socket;
+Socket.Transport = require('./transport');
+Socket.transports = require('./transports/index');
+Socket.parser = require('engine.io-parser');
+
+/**
+ * Creates transport of the given type.
+ *
+ * @param {String} transport name
+ * @return {Transport}
+ * @api private
+ */
+
+Socket.prototype.createTransport = function (name) {
+  debug('creating transport "%s"', name);
+  var query = clone(this.query);
+
+  // append engine.io protocol identifier
+  query.EIO = parser.protocol;
+
+  // transport name
+  query.transport = name;
+
+  // per-transport options
+  var options = this.transportOptions[name] || {};
+
+  // session id if we already have one
+  if (this.id) query.sid = this.id;
+
+  var transport = new transports[name]({
+    query: query,
+    socket: this,
+    agent: options.agent || this.agent,
+    hostname: options.hostname || this.hostname,
+    port: options.port || this.port,
+    secure: options.secure || this.secure,
+    path: options.path || this.path,
+    forceJSONP: options.forceJSONP || this.forceJSONP,
+    jsonp: options.jsonp || this.jsonp,
+    forceBase64: options.forceBase64 || this.forceBase64,
+    enablesXDR: options.enablesXDR || this.enablesXDR,
+    timestampRequests: options.timestampRequests || this.timestampRequests,
+    timestampParam: options.timestampParam || this.timestampParam,
+    policyPort: options.policyPort || this.policyPort,
+    pfx: options.pfx || this.pfx,
+    key: options.key || this.key,
+    passphrase: options.passphrase || this.passphrase,
+    cert: options.cert || this.cert,
+    ca: options.ca || this.ca,
+    ciphers: options.ciphers || this.ciphers,
+    rejectUnauthorized: options.rejectUnauthorized || this.rejectUnauthorized,
+    perMessageDeflate: options.perMessageDeflate || this.perMessageDeflate,
+    extraHeaders: options.extraHeaders || this.extraHeaders,
+    forceNode: options.forceNode || this.forceNode,
+    localAddress: options.localAddress || this.localAddress,
+    requestTimeout: options.requestTimeout || this.requestTimeout,
+    protocols: options.protocols || void (0),
+    isReactNative: this.isReactNative
+  });
+
+  return transport;
+};
+
+function clone (obj) {
+  var o = {};
+  for (var i in obj) {
+    if (obj.hasOwnProperty(i)) {
+      o[i] = obj[i];
+    }
+  }
+  return o;
+}
+
+/**
+ * Initializes transport to use and starts probe.
+ *
+ * @api private
+ */
+Socket.prototype.open = function () {
+  var transport;
+  if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') !== -1) {
+    transport = 'websocket';
+  } else if (0 === this.transports.length) {
+    // Emit error on next tick so it can be listened to
+    var self = this;
+    setTimeout(function () {
+      self.emit('error', 'No transports available');
+    }, 0);
+    return;
+  } else {
+    transport = this.transports[0];
+  }
+  this.readyState = 'opening';
+
+  // Retry with the next transport if the transport is disabled (jsonp: false)
+  try {
+    transport = this.createTransport(transport);
+  } catch (e) {
+    this.transports.shift();
+    this.open();
+    return;
+  }
+
+  transport.open();
+  this.setTransport(transport);
+};
+
+/**
+ * Sets the current transport. Disables the existing one (if any).
+ *
+ * @api private
+ */
+
+Socket.prototype.setTransport = function (transport) {
+  debug('setting transport %s', transport.name);
+  var self = this;
+
+  if (this.transport) {
+    debug('clearing existing transport %s', this.transport.name);
+    this.transport.removeAllListeners();
+  }
+
+  // set up transport
+  this.transport = transport;
+
+  // set up transport listeners
+  transport
+  .on('drain', function () {
+    self.onDrain();
+  })
+  .on('packet', function (packet) {
+    self.onPacket(packet);
+  })
+  .on('error', function (e) {
+    self.onError(e);
+  })
+  .on('close', function () {
+    self.onClose('transport close');
+  });
+};
+
+/**
+ * Probes a transport.
+ *
+ * @param {String} transport name
+ * @api private
+ */
+
+Socket.prototype.probe = function (name) {
+  debug('probing transport "%s"', name);
+  var transport = this.createTransport(name, { probe: 1 });
+  var failed = false;
+  var self = this;
+
+  Socket.priorWebsocketSuccess = false;
+
+  function onTransportOpen () {
+    if (self.onlyBinaryUpgrades) {
+      var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;
+      failed = failed || upgradeLosesBinary;
+    }
+    if (failed) return;
+
+    debug('probe transport "%s" opened', name);
+    transport.send([{ type: 'ping', data: 'probe' }]);
+    transport.once('packet', function (msg) {
+      if (failed) return;
+      if ('pong' === msg.type && 'probe' === msg.data) {
+        debug('probe transport "%s" pong', name);
+        self.upgrading = true;
+        self.emit('upgrading', transport);
+        if (!transport) return;
+        Socket.priorWebsocketSuccess = 'websocket' === transport.name;
+
+        debug('pausing current transport "%s"', self.transport.name);
+        self.transport.pause(function () {
+          if (failed) return;
+          if ('closed' === self.readyState) return;
+          debug('changing transport and sending upgrade packet');
+
+          cleanup();
+
+          self.setTransport(transport);
+          transport.send([{ type: 'upgrade' }]);
+          self.emit('upgrade', transport);
+          transport = null;
+          self.upgrading = false;
+          self.flush();
+        });
+      } else {
+        debug('probe transport "%s" failed', name);
+        var err = new Error('probe error');
+        err.transport = transport.name;
+        self.emit('upgradeError', err);
+      }
+    });
+  }
+
+  function freezeTransport () {
+    if (failed) return;
+
+    // Any callback called by transport should be ignored since now
+    failed = true;
+
+    cleanup();
+
+    transport.close();
+    transport = null;
+  }
+
+  // Handle any error that happens while probing
+  function onerror (err) {
+    var error = new Error('probe error: ' + err);
+    error.transport = transport.name;
+
+    freezeTransport();
+
+    debug('probe transport "%s" failed because of error: %s', name, err);
+
+    self.emit('upgradeError', error);
+  }
+
+  function onTransportClose () {
+    onerror('transport closed');
+  }
+
+  // When the socket is closed while we're probing
+  function onclose () {
+    onerror('socket closed');
+  }
+
+  // When the socket is upgraded while we're probing
+  function onupgrade (to) {
+    if (transport && to.name !== transport.name) {
+      debug('"%s" works - aborting "%s"', to.name, transport.name);
+      freezeTransport();
+    }
+  }
+
+  // Remove all listeners on the transport and on self
+  function cleanup () {
+    transport.removeListener('open', onTransportOpen);
+    transport.removeListener('error', onerror);
+    transport.removeListener('close', onTransportClose);
+    self.removeListener('close', onclose);
+    self.removeListener('upgrading', onupgrade);
+  }
+
+  transport.once('open', onTransportOpen);
+  transport.once('error', onerror);
+  transport.once('close', onTransportClose);
+
+  this.once('close', onclose);
+  this.once('upgrading', onupgrade);
+
+  transport.open();
+};
+
+/**
+ * Called when connection is deemed open.
+ *
+ * @api public
+ */
+
+Socket.prototype.onOpen = function () {
+  debug('socket open');
+  this.readyState = 'open';
+  Socket.priorWebsocketSuccess = 'websocket' === this.transport.name;
+  this.emit('open');
+  this.flush();
+
+  // we check for `readyState` in case an `open`
+  // listener already closed the socket
+  if ('open' === this.readyState && this.upgrade && this.transport.pause) {
+    debug('starting upgrade probes');
+    for (var i = 0, l = this.upgrades.length; i < l; i++) {
+      this.probe(this.upgrades[i]);
+    }
+  }
+};
+
+/**
+ * Handles a packet.
+ *
+ * @api private
+ */
+
+Socket.prototype.onPacket = function (packet) {
+  if ('opening' === this.readyState || 'open' === this.readyState ||
+      'closing' === this.readyState) {
+    debug('socket receive: type "%s", data "%s"', packet.type, packet.data);
+
+    this.emit('packet', packet);
+
+    // Socket is live - any packet counts
+    this.emit('heartbeat');
+
+    switch (packet.type) {
+      case 'open':
+        this.onHandshake(JSON.parse(packet.data));
+        break;
+
+      case 'pong':
+        this.setPing();
+        this.emit('pong');
+        break;
+
+      case 'error':
+        var err = new Error('server error');
+        err.code = packet.data;
+        this.onError(err);
+        break;
+
+      case 'message':
+        this.emit('data', packet.data);
+        this.emit('message', packet.data);
+        break;
+    }
+  } else {
+    debug('packet received with socket readyState "%s"', this.readyState);
+  }
+};
+
+/**
+ * Called upon handshake completion.
+ *
+ * @param {Object} handshake obj
+ * @api private
+ */
+
+Socket.prototype.onHandshake = function (data) {
+  this.emit('handshake', data);
+  this.id = data.sid;
+  this.transport.query.sid = data.sid;
+  this.upgrades = this.filterUpgrades(data.upgrades);
+  this.pingInterval = data.pingInterval;
+  this.pingTimeout = data.pingTimeout;
+  this.onOpen();
+  // In case open handler closes socket
+  if ('closed' === this.readyState) return;
+  this.setPing();
+
+  // Prolong liveness of socket on heartbeat
+  this.removeListener('heartbeat', this.onHeartbeat);
+  this.on('heartbeat', this.onHeartbeat);
+};
+
+/**
+ * Resets ping timeout.
+ *
+ * @api private
+ */
+
+Socket.prototype.onHeartbeat = function (timeout) {
+  clearTimeout(this.pingTimeoutTimer);
+  var self = this;
+  self.pingTimeoutTimer = setTimeout(function () {
+    if ('closed' === self.readyState) return;
+    self.onClose('ping timeout');
+  }, timeout || (self.pingInterval + self.pingTimeout));
+};
+
+/**
+ * Pings server every `this.pingInterval` and expects response
+ * within `this.pingTimeout` or closes connection.
+ *
+ * @api private
+ */
+
+Socket.prototype.setPing = function () {
+  var self = this;
+  clearTimeout(self.pingIntervalTimer);
+  self.pingIntervalTimer = setTimeout(function () {
+    debug('writing ping packet - expecting pong within %sms', self.pingTimeout);
+    self.ping();
+    self.onHeartbeat(self.pingTimeout);
+  }, self.pingInterval);
+};
+
+/**
+* Sends a ping packet.
+*
+* @api private
+*/
+
+Socket.prototype.ping = function () {
+  var self = this;
+  this.sendPacket('ping', function () {
+    self.emit('ping');
+  });
+};
+
+/**
+ * Called on `drain` event
+ *
+ * @api private
+ */
+
+Socket.prototype.onDrain = function () {
+  this.writeBuffer.splice(0, this.prevBufferLen);
+
+  // setting prevBufferLen = 0 is very important
+  // for example, when upgrading, upgrade packet is sent over,
+  // and a nonzero prevBufferLen could cause problems on `drain`
+  this.prevBufferLen = 0;
+
+  if (0 === this.writeBuffer.length) {
+    this.emit('drain');
+  } else {
+    this.flush();
+  }
+};
+
+/**
+ * Flush write buffers.
+ *
+ * @api private
+ */
+
+Socket.prototype.flush = function () {
+  if ('closed' !== this.readyState && this.transport.writable &&
+    !this.upgrading && this.writeBuffer.length) {
+    debug('flushing %d packets in socket', this.writeBuffer.length);
+    this.transport.send(this.writeBuffer);
+    // keep track of current length of writeBuffer
+    // splice writeBuffer and callbackBuffer on `drain`
+    this.prevBufferLen = this.writeBuffer.length;
+    this.emit('flush');
+  }
+};
+
+/**
+ * Sends a message.
+ *
+ * @param {String} message.
+ * @param {Function} callback function.
+ * @param {Object} options.
+ * @return {Socket} for chaining.
+ * @api public
+ */
+
+Socket.prototype.write =
+Socket.prototype.send = function (msg, options, fn) {
+  this.sendPacket('message', msg, options, fn);
+  return this;
+};
+
+/**
+ * Sends a packet.
+ *
+ * @param {String} packet type.
+ * @param {String} data.
+ * @param {Object} options.
+ * @param {Function} callback function.
+ * @api private
+ */
+
+Socket.prototype.sendPacket = function (type, data, options, fn) {
+  if ('function' === typeof data) {
+    fn = data;
+    data = undefined;
+  }
+
+  if ('function' === typeof options) {
+    fn = options;
+    options = null;
+  }
+
+  if ('closing' === this.readyState || 'closed' === this.readyState) {
+    return;
+  }
+
+  options = options || {};
+  options.compress = false !== options.compress;
+
+  var packet = {
+    type: type,
+    data: data,
+    options: options
+  };
+  this.emit('packetCreate', packet);
+  this.writeBuffer.push(packet);
+  if (fn) this.once('flush', fn);
+  this.flush();
+};
+
+/**
+ * Closes the connection.
+ *
+ * @api private
+ */
+
+Socket.prototype.close = function () {
+  if ('opening' === this.readyState || 'open' === this.readyState) {
+    this.readyState = 'closing';
+
+    var self = this;
+
+    if (this.writeBuffer.length) {
+      this.once('drain', function () {
+        if (this.upgrading) {
+          waitForUpgrade();
+        } else {
+          close();
+        }
+      });
+    } else if (this.upgrading) {
+      waitForUpgrade();
+    } else {
+      close();
+    }
+  }
+
+  function close () {
+    self.onClose('forced close');
+    debug('socket closing - telling transport to close');
+    self.transport.close();
+  }
+
+  function cleanupAndClose () {
+    self.removeListener('upgrade', cleanupAndClose);
+    self.removeListener('upgradeError', cleanupAndClose);
+    close();
+  }
+
+  function waitForUpgrade () {
+    // wait for upgrade to finish since we can't send packets while pausing a transport
+    self.once('upgrade', cleanupAndClose);
+    self.once('upgradeError', cleanupAndClose);
+  }
+
+  return this;
+};
+
+/**
+ * Called upon transport error
+ *
+ * @api private
+ */
+
+Socket.prototype.onError = function (err) {
+  debug('socket error %j', err);
+  Socket.priorWebsocketSuccess = false;
+  this.emit('error', err);
+  this.onClose('transport error', err);
+};
+
+/**
+ * Called upon transport close.
+ *
+ * @api private
+ */
+
+Socket.prototype.onClose = function (reason, desc) {
+  if ('opening' === this.readyState || 'open' === this.readyState || 'closing' === this.readyState) {
+    debug('socket close with reason: "%s"', reason);
+    var self = this;
+
+    // clear timers
+    clearTimeout(this.pingIntervalTimer);
+    clearTimeout(this.pingTimeoutTimer);
+
+    // stop event from firing again for transport
+    this.transport.removeAllListeners('close');
+
+    // ensure transport won't stay open
+    this.transport.close();
+
+    // ignore further transport communication
+    this.transport.removeAllListeners();
+
+    // set ready state
+    this.readyState = 'closed';
+
+    // clear session id
+    this.id = null;
+
+    // emit close event
+    this.emit('close', reason, desc);
+
+    // clean buffers after, so users can still
+    // grab the buffers on `close` event
+    self.writeBuffer = [];
+    self.prevBufferLen = 0;
+  }
+};
+
+/**
+ * Filters upgrades, returning only those matching client transports.
+ *
+ * @param {Array} server upgrades
+ * @api private
+ *
+ */
+
+Socket.prototype.filterUpgrades = function (upgrades) {
+  var filteredUpgrades = [];
+  for (var i = 0, j = upgrades.length; i < j; i++) {
+    if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);
+  }
+  return filteredUpgrades;
+};
diff --git a/helloworld/node_modules/engine.io-client/lib/transport.js b/helloworld/node_modules/engine.io-client/lib/transport.js
new file mode 100755
index 0000000..fb043c7
--- /dev/null
+++ b/helloworld/node_modules/engine.io-client/lib/transport.js
@@ -0,0 +1,160 @@
+/**
+ * Module dependencies.
+ */
+
+var parser = require('engine.io-parser');
+var Emitter = require('component-emitter');
+
+/**
+ * Module exports.
+ */
+
+module.exports = Transport;
+
+/**
+ * Transport abstract constructor.
+ *
+ * @param {Object} options.
+ * @api private
+ */
+
+function Transport (opts) {
+  this.path = opts.path;
+  this.hostname = opts.hostname;
+  this.port = opts.port;
+  this.secure = opts.secure;
+  this.query = opts.query;
+  this.timestampParam = opts.timestampParam;
+  this.timestampRequests = opts.timestampRequests;
+  this.readyState = '';
+  this.agent = opts.agent || false;
+  this.socket = opts.socket;
+  this.enablesXDR = opts.enablesXDR;
+
+  // SSL options for Node.js client
+  this.pfx = opts.pfx;
+  this.key = opts.key;
+  this.passphrase = opts.passphrase;
+  this.cert = opts.cert;
+  this.ca = opts.ca;
+  this.ciphers = opts.ciphers;
+  this.rejectUnauthorized = opts.rejectUnauthorized;
+  this.forceNode = opts.forceNode;
+
+  // results of ReactNative environment detection
+  this.isReactNative = opts.isReactNative;
+
+  // other options for Node.js client
+  this.extraHeaders = opts.extraHeaders;
+  this.localAddress = opts.localAddress;
+}
+
+/**
+ * Mix in `Emitter`.
+ */
+
+Emitter(Transport.prototype);
+
+/**
+ * Emits an error.
+ *
+ * @param {String} str
+ * @return {Transport} for chaining
+ * @api public
+ */
+
+Transport.prototype.onError = function (msg, desc) {
+  var err = new Error(msg);
+  err.type = 'TransportError';
+  err.description = desc;
+  this.emit('error', err);
+  return this;
+};
+
+/**
+ * Opens the transport.
+ *
+ * @api public
+ */
+
+Transport.prototype.open = function () {
+  if ('closed' === this.readyState || '' === this.readyState) {
+    this.readyState = 'opening';
+    this.doOpen();
+  }
+
+  return this;
+};
+
+/**
+ * Closes the transport.
+ *
+ * @api private
+ */
+
+Transport.prototype.close = function () {
+  if ('opening' === this.readyState || 'open' === this.readyState) {
+    this.doClose();
+    this.onClose();
+  }
+
+  return this;
+};
+
+/**
+ * Sends multiple packets.
+ *
+ * @param {Array} packets
+ * @api private
+ */
+
+Transport.prototype.send = function (packets) {
+  if ('open' === this.readyState) {
+    this.write(packets);
+  } else {
+    throw new Error('Transport not open');
+  }
+};
+
+/**
+ * Called upon open
+ *
+ * @api private
+ */
+
+Transport.prototype.onOpen = function () {
+  this.readyState = 'open';
+  this.writable = true;
+  this.emit('open');
+};
+
+/**
+ * Called with data.
+ *
+ * @param {String} data
+ * @api private
+ */
+
+Transport.prototype.onData = function (data) {
+  var packet = parser.decodePacket(data, this.socket.binaryType);
+  this.onPacket(packet);
+};
+
+/**
+ * Called with a decoded packet.
+ */
+
+Transport.prototype.onPacket = function (packet) {
+  this.emit('packet', packet);
+};
+
+/**
+ * Called upon close.
+ *
+ * @api private
+ */
+
+Transport.prototype.onClose = function () {
+  this.readyState = 'closed';
+  this.emit('close');
+};
diff --git a/helloworld/node_modules/engine.io-client/lib/transports/index.js b/helloworld/node_modules/engine.io-client/lib/transports/index.js
new file mode 100755
index 0000000..62a8984
--- /dev/null
+++ b/helloworld/node_modules/engine.io-client/lib/transports/index.js
@@ -0,0 +1,53 @@
+/**
+ * Module dependencies
+ */
+
+var XMLHttpRequest = require('xmlhttprequest-ssl');
+var XHR = require('./polling-xhr');
+var JSONP = require('./polling-jsonp');
+var websocket = require('./websocket');
+
+/**
+ * Export transports.
+ */
+
+exports.polling = polling;
+exports.websocket = websocket;
+
+/**
+ * Polling transport polymorphic constructor.
+ * Decides on xhr vs jsonp based on feature detection.
+ *
+ * @api private
+ */
+
+function polling (opts) {
+  var xhr;
+  var xd = false;
+  var xs = false;
+  var jsonp = false !== opts.jsonp;
+
+  if (typeof location !== 'undefined') {
+    var isSSL = 'https:' === location.protocol;
+    var port = location.port;
+
+    // some user agents have empty `location.port`
+    if (!port) {
+      port = isSSL ? 443 : 80;
+    }
+
+    xd = opts.hostname !== location.hostname || port !== opts.port;
+    xs = opts.secure !== isSSL;
+  }
+
+  opts.xdomain = xd;
+  opts.xscheme = xs;
+  xhr = new XMLHttpRequest(opts);
+
+  if ('open' in xhr && !opts.forceJSONP) {
+    return new XHR(opts);
+  } else {
+    if (!jsonp) throw new Error('JSONP disabled');
+    return new JSONP(opts);
+  }
+}
diff --git a/helloworld/node_modules/engine.io-client/lib/transports/polling-jsonp.js b/helloworld/node_modules/engine.io-client/lib/transports/polling-jsonp.js
new file mode 100755
index 0000000..8e69337
--- /dev/null
+++ b/helloworld/node_modules/engine.io-client/lib/transports/polling-jsonp.js
@@ -0,0 +1,239 @@
+/**
+ * Module requirements.
+ */
+
+var Polling = require('./polling');
+var inherit = require('component-inherit');
+
+/**
+ * Module exports.
+ */
+
+module.exports = JSONPPolling;
+
+/**
+ * Cached regular expressions.
+ */
+
+var rNewline = /\n/g;
+var rEscapedNewline = /\\n/g;
+
+/**
+ * Global JSONP callbacks.
+ */
+
+var callbacks;
+
+/**
+ * Noop.
+ */
+
+function empty () { }
+
+/**
+ * Until https://github.com/tc39/proposal-global is shipped.
+ */
+function glob () {
+  return typeof self !== 'undefined' ? self
+      : typeof window !== 'undefined' ? window
+      : typeof global !== 'undefined' ? global : {};
+}
+
+/**
+ * JSONP Polling constructor.
+ *
+ * @param {Object} opts.
+ * @api public
+ */
+
+function JSONPPolling (opts) {
+  Polling.call(this, opts);
+
+  this.query = this.query || {};
+
+  // define global callbacks array if not present
+  // we do this here (lazily) to avoid unneeded global pollution
+  if (!callbacks) {
+    // we need to consider multiple engines in the same page
+    var global = glob();
+    callbacks = global.___eio = (global.___eio || []);
+  }
+
+  // callback identifier
+  this.index = callbacks.length;
+
+  // add callback to jsonp global
+  var self = this;
+  callbacks.push(function (msg) {
+    self.onData(msg);
+  });
+
+  // append to query string
+  this.query.j = this.index;
+
+  // prevent spurious errors from being emitted when the window is unloaded
+  if (typeof addEventListener === 'function') {
+    addEventListener('beforeunload', function () {
+      if (self.script) self.script.onerror = empty;
+    }, false);
+  }
+}
+
+/**
+ * Inherits from Polling.
+ */
+
+inherit(JSONPPolling, Polling);
+
+/*
+ * JSONP only supports binary as base64 encoded strings
+ */
+
+JSONPPolling.prototype.supportsBinary = false;
+
+/**
+ * Closes the socket.
+ *
+ * @api private
+ */
+
+JSONPPolling.prototype.doClose = function () {
+  if (this.script) {
+    this.script.parentNode.removeChild(this.script);
+    this.script = null;
+  }
+
+  if (this.form) {
+    this.form.parentNode.removeChild(this.form);
+    this.form = null;
+    this.iframe = null;
+  }
+
+  Polling.prototype.doClose.call(this);
+};
+
+/**
+ * Starts a poll cycle.
+ *
+ * @api private
+ */
+
+JSONPPolling.prototype.doPoll = function () {
+  var self = this;
+  var script = document.createElement('script');
+
+  if (this.script) {
+    this.script.parentNode.removeChild(this.script);
+    this.script = null;
+  }
+
+  script.async = true;
+  script.src = this.uri();
+  script.onerror = function (e) {
+    self.onError('jsonp poll error', e);
+  };
+
+  var insertAt = document.getElementsByTagName('script')[0];
+  if (insertAt) {
+    insertAt.parentNode.insertBefore(script, insertAt);
+  } else {
+    (document.head || document.body).appendChild(script);
+  }
+  this.script = script;
+
+  var isUAgecko = 'undefined' !== typeof navigator && /gecko/i.test(navigator.userAgent);
+
+  if (isUAgecko) {
+    setTimeout(function () {
+      var iframe = document.createElement('iframe');
+      document.body.appendChild(iframe);
+      document.body.removeChild(iframe);
+    }, 100);
+  }
+};
+
+/**
+ * Writes with a hidden iframe.
+ *
+ * @param {String} data to send
+ * @param {Function} called upon flush.
+ * @api private
+ */
+
+JSONPPolling.prototype.doWrite = function (data, fn) {
+  var self = this;
+
+  if (!this.form) {
+    var form = document.createElement('form');
+    var area = document.createElement('textarea');
+    var id = this.iframeId = 'eio_iframe_' + this.index;
+    var iframe;
+
+    form.className = 'socketio';
+    form.style.position = 'absolute';
+    form.style.top = '-1000px';
+    form.style.left = '-1000px';
+    form.target = id;
+    form.method = 'POST';
+    form.setAttribute('accept-charset', 'utf-8');
+    area.name = 'd';
+    form.appendChild(area);
+    document.body.appendChild(form);
+
+    this.form = form;
+    this.area = area;
+  }
+
+  this.form.action = this.uri();
+
+  function complete () {
+    initIframe();
+    fn();
+  }
+
+  function initIframe () {
+    if (self.iframe) {
+      try {
+        self.form.removeChild(self.iframe);
+      } catch (e) {
+        self.onError('jsonp polling iframe removal error', e);
+      }
+    }
+
+    try {
+      // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
+      var html = '<iframe src="javascript:0" name="' + self.iframeId + '">';
+      iframe = document.createElement(html);
+    } catch (e) {
+      iframe = document.createElement('iframe');
+      iframe.name = self.iframeId;
+      iframe.src = 'javascript:0';
+    }
+
+    iframe.id = self.iframeId;
+
+    self.form.appendChild(iframe);
+    self.iframe = iframe;
+  }
+
+  initIframe();
+
+  // escape \n to prevent it from being converted into \r\n by some UAs
+  // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side
+  data = data.replace(rEscapedNewline, '\\\n');
+  this.area.value = data.replace(rNewline, '\\n');
+
+  try {
+    this.form.submit();
+  } catch (e) {}
+
+  if (this.iframe.attachEvent) {
+    this.iframe.onreadystatechange = function () {
+      if (self.iframe.readyState === 'complete') {
+        complete();
+      }
+    };
+  } else {
+    this.iframe.onload = complete;
+  }
+};
diff --git a/helloworld/node_modules/engine.io-client/lib/transports/polling-xhr.js b/helloworld/node_modules/engine.io-client/lib/transports/polling-xhr.js
new file mode 100755
index 0000000..cc16d9d
--- /dev/null
+++ b/helloworld/node_modules/engine.io-client/lib/transports/polling-xhr.js
@@ -0,0 +1,415 @@
+/* global attachEvent */
+
+/**
+ * Module requirements.
+ */
+
+var XMLHttpRequest = require('xmlhttprequest-ssl');
+var Polling = require('./polling');
+var Emitter = require('component-emitter');
+var inherit = require('component-inherit');
+var debug = require('debug')('engine.io-client:polling-xhr');
+
+/**
+ * Module exports.
+ */
+
+module.exports = XHR;
+module.exports.Request = Request;
+
+/**
+ * Empty function
+ */
+
+function empty () {}
+
+/**
+ * XHR Polling constructor.
+ *
+ * @param {Object} opts
+ * @api public
+ */
+
+function XHR (opts) {
+  Polling.call(this, opts);
+  this.requestTimeout = opts.requestTimeout;
+  this.extraHeaders = opts.extraHeaders;
+
+  if (typeof location !== 'undefined') {
+    var isSSL = 'https:' === location.protocol;
+    var port = location.port;
+
+    // some user agents have empty `location.port`
+    if (!port) {
+      port = isSSL ? 443 : 80;
+    }
+
+    this.xd = (typeof location !== 'undefined' && opts.hostname !== location.hostname) ||
+      port !== opts.port;
+    this.xs = opts.secure !== isSSL;
+  }
+}
+
+/**
+ * Inherits from Polling.
+ */
+
+inherit(XHR, Polling);
+
+/**
+ * XHR supports binary
+ */
+
+XHR.prototype.supportsBinary = true;
+
+/**
+ * Creates a request.
+ *
+ * @param {String} method
+ * @api private
+ */
+
+XHR.prototype.request = function (opts) {
+  opts = opts || {};
+  opts.uri = this.uri();
+  opts.xd = this.xd;
+  opts.xs = this.xs;
+  opts.agent = this.agent || false;
+  opts.supportsBinary = this.supportsBinary;
+  opts.enablesXDR = this.enablesXDR;
+
+  // SSL options for Node.js client
+  opts.pfx = this.pfx;
+  opts.key = this.key;
+  opts.passphrase = this.passphrase;
+  opts.cert = this.cert;
+  opts.ca = this.ca;
+  opts.ciphers = this.ciphers;
+  opts.rejectUnauthorized = this.rejectUnauthorized;
+  opts.requestTimeout = this.requestTimeout;
+
+  // other options for Node.js client
+  opts.extraHeaders = this.extraHeaders;
+
+  return new Request(opts);
+};
+
+/**
+ * Sends data.
+ *
+ * @param {String} data to send.
+ * @param {Function} called upon flush.
+ * @api private
+ */
+
+XHR.prototype.doWrite = function (data, fn) {
+  var isBinary = typeof data !== 'string' && data !== undefined;
+  var req = this.request({ method: 'POST', data: data, isBinary: isBinary });
+  var self = this;
+  req.on('success', fn);
+  req.on('error', function (err) {
+    self.onError('xhr post error', err);
+  });
+  this.sendXhr = req;
+};
+
+/**
+ * Starts a poll cycle.
+ *
+ * @api private
+ */
+
+XHR.prototype.doPoll = function () {
+  debug('xhr poll');
+  var req = this.request();
+  var self = this;
+  req.on('data', function (data) {
+    self.onData(data);
+  });
+  req.on('error', function (err) {
+    self.onError('xhr poll error', err);
+  });
+  this.pollXhr = req;
+};
+
+/**
+ * Request constructor
+ *
+ * @param {Object} options
+ * @api public
+ */
+
+function Request (opts) {
+  this.method = opts.method || 'GET';
+  this.uri = opts.uri;
+  this.xd = !!opts.xd;
+  this.xs = !!opts.xs;
+  this.async = false !== opts.async;
+  this.data = undefined !== opts.data ? opts.data : null;
+  this.agent = opts.agent;
+  this.isBinary = opts.isBinary;
+  this.supportsBinary = opts.supportsBinary;
+  this.enablesXDR = opts.enablesXDR;
+  this.requestTimeout = opts.requestTimeout;
+
+  // SSL options for Node.js client
+  this.pfx = opts.pfx;
+  this.key = opts.key;
+  this.passphrase = opts.passphrase;
+  this.cert = opts.cert;
+  this.ca = opts.ca;
+  this.ciphers = opts.ciphers;
+  this.rejectUnauthorized = opts.rejectUnauthorized;
+
+  // other options for Node.js client
+  this.extraHeaders = opts.extraHeaders;
+
+  this.create();
+}
+
+/**
+ * Mix in `Emitter`.
+ */
+
+Emitter(Request.prototype);
+
+/**
+ * Creates the XHR object and sends the request.
+ *
+ * @api private
+ */
+
+Request.prototype.create = function () {
+  var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };
+
+  // SSL options for Node.js client
+  opts.pfx = this.pfx;
+  opts.key = this.key;
+  opts.passphrase = this.passphrase;
+  opts.cert = this.cert;
+  opts.ca = this.ca;
+  opts.ciphers = this.ciphers;
+  opts.rejectUnauthorized = this.rejectUnauthorized;
+
+  var xhr = this.xhr = new XMLHttpRequest(opts);
+  var self = this;
+
+  try {
+    debug('xhr open %s: %s', this.method, this.uri);
+    xhr.open(this.method, this.uri, this.async);
+    try {
+      if (this.extraHeaders) {
+        xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);
+        for (var i in this.extraHeaders) {
+          if (this.extraHeaders.hasOwnProperty(i)) {
+            xhr.setRequestHeader(i, this.extraHeaders[i]);
+          }
+        }
+      }
+    } catch (e) {}
+
+    if ('POST' === this.method) {
+      try {
+        if (this.isBinary) {
+          xhr.setRequestHeader('Content-type', 'application/octet-stream');
+        } else {
+          xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');
+        }
+      } catch (e) {}
+    }
+
+    try {
+      xhr.setRequestHeader('Accept', '*/*');
+    } catch (e) {}
+
+    // ie6 check
+    if ('withCredentials' in xhr) {
+      xhr.withCredentials = true;
+    }
+
+    if (this.requestTimeout) {
+      xhr.timeout = this.requestTimeout;
+    }
+
+    if (this.hasXDR()) {
+      xhr.onload = function () {
+        self.onLoad();
+      };
+      xhr.onerror = function () {
+        self.onError(xhr.responseText);
+      };
+    } else {
+      xhr.onreadystatechange = function () {
+        if (xhr.readyState === 2) {
+          try {
+            var contentType = xhr.getResponseHeader('Content-Type');
+            if (self.supportsBinary && contentType === 'application/octet-stream') {
+              xhr.responseType = 'arraybuffer';
+            }
+          } catch (e) {}
+        }
+        if (4 !== xhr.readyState) return;
+        if (200 === xhr.status || 1223 === xhr.status) {
+          self.onLoad();
+        } else {
+          // make sure the `error` event handler that's user-set
+          // does not throw in the same tick and gets caught here
+          setTimeout(function () {
+            self.onError(xhr.status);
+          }, 0);
+        }
+      };
+    }
+
+    debug('xhr data %s', this.data);
+    xhr.send(this.data);
+  } catch (e) {
+    // Need to defer since .create() is called directly fhrom the constructor
+    // and thus the 'error' event can only be only bound *after* this exception
+    // occurs.  Therefore, also, we cannot throw here at all.
+    setTimeout(function () {
+      self.onError(e);
+    }, 0);
+    return;
+  }
+
+  if (typeof document !== 'undefined') {
+    this.index = Request.requestsCount++;
+    Request.requests[this.index] = this;
+  }
+};
+
+/**
+ * Called upon successful response.
+ *
+ * @api private
+ */
+
+Request.prototype.onSuccess = function () {
+  this.emit('success');
+  this.cleanup();
+};
+
+/**
+ * Called if we have data.
+ *
+ * @api private
+ */
+
+Request.prototype.onData = function (data) {
+  this.emit('data', data);
+  this.onSuccess();
+};
+
+/**
+ * Called upon error.
+ *
+ * @api private
+ */
+
+Request.prototype.onError = function (err) {
+  this.emit('error', err);
+  this.cleanup(true);
+};
+
+/**
+ * Cleans up house.
+ *
+ * @api private
+ */
+
+Request.prototype.cleanup = function (fromError) {
+  if ('undefined' === typeof this.xhr || null === this.xhr) {
+    return;
+  }
+  // xmlhttprequest
+  if (this.hasXDR()) {
+    this.xhr.onload = this.xhr.onerror = empty;
+  } else {
+    this.xhr.onreadystatechange = empty;
+  }
+
+  if (fromError) {
+    try {
+      this.xhr.abort();
+    } catch (e) {}
+  }
+
+  if (typeof document !== 'undefined') {
+    delete Request.requests[this.index];
+  }
+
+  this.xhr = null;
+};
+
+/**
+ * Called upon load.
+ *
+ * @api private
+ */
+
+Request.prototype.onLoad = function () {
+  var data;
+  try {
+    var contentType;
+    try {
+      contentType = this.xhr.getResponseHeader('Content-Type');
+    } catch (e) {}
+    if (contentType === 'application/octet-stream') {
+      data = this.xhr.response || this.xhr.responseText;
+    } else {
+      data = this.xhr.responseText;
+    }
+  } catch (e) {
+    this.onError(e);
+  }
+  if (null != data) {
+    this.onData(data);
+  }
+};
+
+/**
+ * Check if it has XDomainRequest.
+ *
+ * @api private
+ */
+
+Request.prototype.hasXDR = function () {
+  return typeof XDomainRequest !== 'undefined' && !this.xs && this.enablesXDR;
+};
+
+/**
+ * Aborts the request.
+ *
+ * @api public
+ */
+
+Request.prototype.abort = function () {
+  this.cleanup();
+};
+
+/**
+ * Aborts pending requests when unloading the window. This is needed to prevent
+ * memory leaks (e.g. when using IE) and to ensure that no spurious error is
+ * emitted.
+ */
+
+Request.requestsCount = 0;
+Request.requests = {};
+
+if (typeof document !== 'undefined') {
+  if (typeof attachEvent === 'function') {
+    attachEvent('onunload', unloadHandler);
+  } else if (typeof addEventListener === 'function') {
+    var terminationEvent = 'onpagehide' in self ? 'pagehide' : 'unload';
+    addEventListener(terminationEvent, unloadHandler, false);
+  }
+}
+
+function unloadHandler () {
+  for (var i in Request.requests) {
+    if (Request.requests.hasOwnProperty(i)) {
+      Request.requests[i].abort();
+    }
+  }
+}
diff --git a/helloworld/node_modules/engine.io-client/lib/transports/polling.js b/helloworld/node_modules/engine.io-client/lib/transports/polling.js
new file mode 100755
index 0000000..970313e
--- /dev/null
+++ b/helloworld/node_modules/engine.io-client/lib/transports/polling.js
@@ -0,0 +1,245 @@
+/**
+ * Module dependencies.
+ */
+
+var Transport = require('../transport');
+var parseqs = require('parseqs');
+var parser = require('engine.io-parser');
+var inherit = require('component-inherit');
+var yeast = require('yeast');
+var debug = require('debug')('engine.io-client:polling');
+
+/**
+ * Module exports.
+ */
+
+module.exports = Polling;
+
+/**
+ * Is XHR2 supported?
+ */
+
+var hasXHR2 = (function () {
+  var XMLHttpRequest = require('xmlhttprequest-ssl');
+  var xhr = new XMLHttpRequest({ xdomain: false });
+  return null != xhr.responseType;
+})();
+
+/**
+ * Polling interface.
+ *
+ * @param {Object} opts
+ * @api private
+ */
+
+function Polling (opts) {
+  var forceBase64 = (opts && opts.forceBase64);
+  if (!hasXHR2 || forceBase64) {
+    this.supportsBinary = false;
+  }
+  Transport.call(this, opts);
+}
+
+/**
+ * Inherits from Transport.
+ */
+
+inherit(Polling, Transport);
+
+/**
+ * Transport name.
+ */
+
+Polling.prototype.name = 'polling';
+
+/**
+ * Opens the socket (triggers polling). We write a PING message to determine
+ * when the transport is open.
+ *
+ * @api private
+ */
+
+Polling.prototype.doOpen = function () {
+  this.poll();
+};
+
+/**
+ * Pauses polling.
+ *
+ * @param {Function} callback upon buffers are flushed and transport is paused
+ * @api private
+ */
+
+Polling.prototype.pause = function (onPause) {
+  var self = this;
+
+  this.readyState = 'pausing';
+
+  function pause () {
+    debug('paused');
+    self.readyState = 'paused';
+    onPause();
+  }
+
+  if (this.polling || !this.writable) {
+    var total = 0;
+
+    if (this.polling) {
+      debug('we are currently polling - waiting to pause');
+      total++;
+      this.once('pollComplete', function () {
+        debug('pre-pause polling complete');
+        --total || pause();
+      });
+    }
+
+    if (!this.writable) {
+      debug('we are currently writing - waiting to pause');
+      total++;
+      this.once('drain', function () {
+        debug('pre-pause writing complete');
+        --total || pause();
+      });
+    }
+  } else {
+    pause();
+  }
+};
+
+/**
+ * Starts polling cycle.
+ *
+ * @api public
+ */
+
+Polling.prototype.poll = function () {
+  debug('polling');
+  this.polling = true;
+  this.doPoll();
+  this.emit('poll');
+};
+
+/**
+ * Overloads onData to detect payloads.
+ *
+ * @api private
+ */
+
+Polling.prototype.onData = function (data) {
+  var self = this;
+  debug('polling got data %s', data);
+  var callback = function (packet, index, total) {
+    // if its the first message we consider the transport open
+    if ('opening' === self.readyState) {
+      self.onOpen();
+    }
+
+    // if its a close packet, we close the ongoing requests
+    if ('close' === packet.type) {
+      self.onClose();
+      return false;
+    }
+
+    // otherwise bypass onData and handle the message
+    self.onPacket(packet);
+  };
+
+  // decode payload
+  parser.decodePayload(data, this.socket.binaryType, callback);
+
+  // if an event did not trigger closing
+  if ('closed' !== this.readyState) {
+    // if we got data we're not polling
+    this.polling = false;
+    this.emit('pollComplete');
+
+    if ('open' === this.readyState) {
+      this.poll();
+    } else {
+      debug('ignoring poll - transport state "%s"', this.readyState);
+    }
+  }
+};
+
+/**
+ * For polling, send a close packet.
+ *
+ * @api private
+ */
+
+Polling.prototype.doClose = function () {
+  var self = this;
+
+  function close () {
+    debug('writing close packet');
+    self.write([{ type: 'close' }]);
+  }
+
+  if ('open' === this.readyState) {
+    debug('transport open - closing');
+    close();
+  } else {
+    // in case we're trying to close while
+    // handshaking is in progress (GH-164)
+    debug('transport not open - deferring close');
+    this.once('open', close);
+  }
+};
+
+/**
+ * Writes a packets payload.
+ *
+ * @param {Array} data packets
+ * @param {Function} drain callback
+ * @api private
+ */
+
+Polling.prototype.write = function (packets) {
+  var self = this;
+  this.writable = false;
+  var callbackfn = function () {
+    self.writable = true;
+    self.emit('drain');
+  };
+
+  parser.encodePayload(packets, this.supportsBinary, function (data) {
+    self.doWrite(data, callbackfn);
+  });
+};
+
+/**
+ * Generates uri for connection.
+ *
+ * @api private
+ */
+
+Polling.prototype.uri = function () {
+  var query = this.query || {};
+  var schema = this.secure ? 'https' : 'http';
+  var port = '';
+
+  // cache busting is forced
+  if (false !== this.timestampRequests) {
+    query[this.timestampParam] = yeast();
+  }
+
+  if (!this.supportsBinary && !query.sid) {
+    query.b64 = 1;
+  }
+
+  query = parseqs.encode(query);
+
+  // avoid port if default for schema
+  if (this.port && (('https' === schema && Number(this.port) !== 443) ||
+     ('http' === schema && Number(this.port) !== 80))) {
+    port = ':' + this.port;
+  }
+
+  // prepend ? to query
+  if (query.length) {
+    query = '?' + query;
+  }
+
+  var ipv6 = this.hostname.indexOf(':') !== -1;
+  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;
+};
diff --git a/helloworld/node_modules/engine.io-client/lib/transports/websocket.js b/helloworld/node_modules/engine.io-client/lib/transports/websocket.js
new file mode 100755
index 0000000..4964fd5
--- /dev/null
+++ b/helloworld/node_modules/engine.io-client/lib/transports/websocket.js
@@ -0,0 +1,293 @@
+/**
+ * Module dependencies.
+ */
+
+var Transport = require('../transport');
+var parser = require('engine.io-parser');
+var parseqs = require('parseqs');
+var inherit = require('component-inherit');
+var yeast = require('yeast');
+var debug = require('debug')('engine.io-client:websocket');
+
+var BrowserWebSocket, NodeWebSocket;
+
+if (typeof WebSocket !== 'undefined') {
+  BrowserWebSocket = WebSocket;
+} else if (typeof self !== 'undefined') {
+  BrowserWebSocket = self.WebSocket || self.MozWebSocket;
+} else {
+  try {
+    NodeWebSocket = require('ws');
+  } catch (e) { }
+}
+
+/**
+ * Get either the `WebSocket` or `MozWebSocket` globals
+ * in the browser or try to resolve WebSocket-compatible
+ * interface exposed by `ws` for Node-like environment.
+ */
+
+var WebSocketImpl = BrowserWebSocket || NodeWebSocket;
+
+/**
+ * Module exports.
+ */
+
+module.exports = WS;
+
+/**
+ * WebSocket transport constructor.
+ *
+ * @api {Object} connection options
+ * @api public
+ */
+
+function WS (opts) {
+  var forceBase64 = (opts && opts.forceBase64);
+  if (forceBase64) {
+    this.supportsBinary = false;
+  }
+  this.perMessageDeflate = opts.perMessageDeflate;
+  this.usingBrowserWebSocket = BrowserWebSocket && !opts.forceNode;
+  this.protocols = opts.protocols;
+  if (!this.usingBrowserWebSocket) {
+    WebSocketImpl = NodeWebSocket;
+  }
+  Transport.call(this, opts);
+}
+
+/**
+ * Inherits from Transport.
+ */
+
+inherit(WS, Transport);
+
+/**
+ * Transport name.
+ *
+ * @api public
+ */
+
+WS.prototype.name = 'websocket';
+
+/*
+ * WebSockets support binary
+ */
+
+WS.prototype.supportsBinary = true;
+
+/**
+ * Opens socket.
+ *
+ * @api private
+ */
+
+WS.prototype.doOpen = function () {
+  if (!this.check()) {
+    // let probe timeout
+    return;
+  }
+
+  var uri = this.uri();
+  var protocols = this.protocols;
+  var opts = {
+    agent: this.agent,
+    perMessageDeflate: this.perMessageDeflate
+  };
+
+  // SSL options for Node.js client
+  opts.pfx = this.pfx;
+  opts.key = this.key;
+  opts.passphrase = this.passphrase;
+  opts.cert = this.cert;
+  opts.ca = this.ca;
+  opts.ciphers = this.ciphers;
+  opts.rejectUnauthorized = this.rejectUnauthorized;
+  if (this.extraHeaders) {
+    opts.headers = this.extraHeaders;
+  }
+  if (this.localAddress) {
+    opts.localAddress = this.localAddress;
+  }
+
+  try {
+    this.ws =
+      this.usingBrowserWebSocket && !this.isReactNative
+        ? protocols
+          ? new WebSocketImpl(uri, protocols)
+          : new WebSocketImpl(uri)
+        : new WebSocketImpl(uri, protocols, opts);
+  } catch (err) {
+    return this.emit('error', err);
+  }
+
+  if (this.ws.binaryType === undefined) {
+    this.supportsBinary = false;
+  }
+
+  if (this.ws.supports && this.ws.supports.binary) {
+    this.supportsBinary = true;
+    this.ws.binaryType = 'nodebuffer';
+  } else {
+    this.ws.binaryType = 'arraybuffer';
+  }
+
+  this.addEventListeners();
+};
+
+/**
+ * Adds event listeners to the socket
+ *
+ * @api private
+ */
+
+WS.prototype.addEventListeners = function () {
+  var self = this;
+
+  this.ws.onopen = function () {
+    self.onOpen();
+  };
+  this.ws.onclose = function () {
+    self.onClose();
+  };
+  this.ws.onmessage = function (ev) {
+    self.onData(ev.data);
+  };
+  this.ws.onerror = function (e) {
+    self.onError('websocket error', e);
+  };
+};
+
+/**
+ * Writes data to socket.
+ *
+ * @param {Array} array of packets.
+ * @api private
+ */
+
+WS.prototype.write = function (packets) {
+  var self = this;
+  this.writable = false;
+
+  // encodePacket efficient as it uses WS framing
+  // no need for encodePayload
+  var total = packets.length;
+  for (var i = 0, l = total; i < l; i++) {
+    (function (packet) {
+      parser.encodePacket(packet, self.supportsBinary, function (data) {
+        if (!self.usingBrowserWebSocket) {
+          // always create a new object (GH-437)
+          var opts = {};
+          if (packet.options) {
+            opts.compress = packet.options.compress;
+          }
+
+          if (self.perMessageDeflate) {
+            var len = 'string' === typeof data ? Buffer.byteLength(data) : data.length;
+            if (len < self.perMessageDeflate.threshold) {
+              opts.compress = false;
+            }
+          }
+        }
+
+        // Sometimes the websocket has already been closed but the browser didn't
+        // have a chance of informing us about it yet, in that case send will
+        // throw an error
+        try {
+          if (self.usingBrowserWebSocket) {
+            // TypeError is thrown when passing the second argument on Safari
+            self.ws.send(data);
+          } else {
+            self.ws.send(data, opts);
+          }
+        } catch (e) {
+          debug('websocket closed before onclose event');
+        }
+
+        --total || done();
+      });
+    })(packets[i]);
+  }
+
+  function done () {
+    self.emit('flush');
+
+    // fake drain
+    // defer to next tick to allow Socket to clear writeBuffer
+    setTimeout(function () {
+      self.writable = true;
+      self.emit('drain');
+    }, 0);
+  }
+};
+
+/**
+ * Called upon close
+ *
+ * @api private
+ */
+
+WS.prototype.onClose = function () {
+  Transport.prototype.onClose.call(this);
+};
+
+/**
+ * Closes socket.
+ *
+ * @api private
+ */
+
+WS.prototype.doClose = function () {
+  if (typeof this.ws !== 'undefined') {
+    this.ws.close();
+  }
+};
+
+/**
+ * Generates uri for connection.
+ *
+ * @api private
+ */
+
+WS.prototype.uri = function () {
+  var query = this.query || {};
+  var schema = this.secure ? 'wss' : 'ws';
+  var port = '';
+
+  // avoid port if default for schema
+  if (this.port && (('wss' === schema && Number(this.port) !== 443) ||
+    ('ws' === schema && Number(this.port) !== 80))) {
+    port = ':' + this.port;
+  }
+
+  // append timestamp to URI
+  if (this.timestampRequests) {
+    query[this.timestampParam] = yeast();
+  }
+
+  // communicate binary support capabilities
+  if (!this.supportsBinary) {
+    query.b64 = 1;
+  }
+
+  query = parseqs.encode(query);
+
+  // prepend ? to query
+  if (query.length) {
+    query = '?' + query;
+  }
+
+  var ipv6 = this.hostname.indexOf(':') !== -1;
+  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;
+};
+
+/**
+ * Feature detection for WebSocket.
+ *
+ * @return {Boolean} whether this transport is available.
+ * @api public
+ */
+
+WS.prototype.check = function () {
+  return !!WebSocketImpl && !('__initialize' in WebSocketImpl && this.name === WS.prototype.name);
+};
diff --git a/helloworld/node_modules/engine.io-client/lib/xmlhttprequest.js b/helloworld/node_modules/engine.io-client/lib/xmlhttprequest.js
new file mode 100755
index 0000000..1413e63
--- /dev/null
+++ b/helloworld/node_modules/engine.io-client/lib/xmlhttprequest.js
@@ -0,0 +1,37 @@
+// browser shim for xmlhttprequest module
+
+var hasCORS = require('has-cors');
+
+module.exports = function (opts) {
+  var xdomain = opts.xdomain;
+
+  // scheme must be same when usign XDomainRequest
+  // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx
+  var xscheme = opts.xscheme;
+
+  // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.
+  // https://github.com/Automattic/engine.io-client/pull/217
+  var enablesXDR = opts.enablesXDR;
+
+  // XMLHttpRequest can be disabled on IE
+  try {
+    if ('undefined' !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {
+      return new XMLHttpRequest();
+    }
+  } catch (e) { }
+
+  // Use XDomainRequest for IE8 if enablesXDR is true
+  // because loading bar keeps flashing when using jsonp-polling
+  // https://github.com/yujiosaka/socke.io-ie8-loading-example
+  try {
+    if ('undefined' !== typeof XDomainRequest && !xscheme && enablesXDR) {
+      return new XDomainRequest();
+    }
+  } catch (e) { }
+
+  if (!xdomain) {
+    try {
+      return new self[['Active'].concat('Object').join('X')]('Microsoft.XMLHTTP');
+    } catch (e) { }
+  }
+};
diff --git a/helloworld/node_modules/engine.io-parser/LICENSE b/helloworld/node_modules/engine.io-parser/LICENSE
new file mode 100755
index 0000000..d8fdaec
--- /dev/null
+++ b/helloworld/node_modules/engine.io-parser/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2016 Guillermo Rauch (@rauchg)
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/helloworld/node_modules/engine.io-parser/Readme.md b/helloworld/node_modules/engine.io-parser/Readme.md
new file mode 100755
index 0000000..02bf538
--- /dev/null
+++ b/helloworld/node_modules/engine.io-parser/Readme.md
@@ -0,0 +1,202 @@
+
+# engine.io-parser
+
+[![Build Status](https://secure.travis-ci.org/socketio/engine.io-parser.svg)](http://travis-ci.org/socketio/engine.io-parser)
+[![NPM version](https://badge.fury.io/js/engine.io-parser.svg)](http://badge.fury.io/js/engine.io-parser)
+
+This is the JavaScript parser for the engine.io protocol encoding,
+shared by both
+[engine.io-client](https://github.com/socketio/engine.io-client) and
+[engine.io](https://github.com/socketio/engine.io).
+
+## How to use
+
+### Standalone
+
+The parser can encode/decode packets, payloads, and payloads as binary
+with the following methods: `encodePacket`, `decodePacket`, `encodePayload`,
+`decodePayload`, `encodePayloadAsBinary`, `decodePayloadAsBinary`.
+
+The browser-side parser also includes `encodePayloadAsArrayBuffer` and `encodePayloadAsBlob`.
+
+Example:
+
+```js
+var parser = require('engine.io-parser');
+
+var data = new Buffer(5);
+for (var i = 0; i < data.length; i++) { data[i] = i; }
+
+parser.encodePacket({ type: 'message', data: data }, function(encoded) {
+  var decodedData = parser.decodePacket(encoded); // { type: 'message', data: data }
+});
+```
+
+### With browserify
+
+Engine.IO Parser is a commonjs module, which means you can include it by using
+`require` on the browser and package using [browserify](http://browserify.org/):
+
+1. install the parser package
+
+    ```shell
+    npm install engine.io-parser
+    ```
+
+1. write your app code
+
+    ```js
+    var parser = require('engine.io-parser');
+
+    var testBuffer = new Int8Array(10);
+    for (var i = 0; i < testBuffer.length; i++) testBuffer[i] = i;
+
+    var packets = [{ type: 'message', data: testBuffer.buffer }, { type: 'message', data: 'hello' }];
+
+    parser.encodePayload(packets, function(encoded) {
+      parser.decodePayload(encoded,
+        function(packet, index, total) {
+          var isLast = index + 1 == total;
+          if (!isLast) {
+            var buffer = new Int8Array(packet.data); // testBuffer
+          } else {
+            var message = packet.data; // 'hello'
+          }
+        });
+    });
+    ```
+
+1. build your app bundle
+
+    ```bash
+    $ browserify app.js > bundle.js
+    ```
+
+1. include on your page
+
+    ```html
+    <script src="/path/to/bundle.js"></script>
+    ```
+
+## Features
+
+- Runs on browser and node.js seamlessly
+- Runs inside HTML5 WebWorker
+- Can encode and decode packets
+  - Encodes from/to ArrayBuffer or Blob when in browser, and Buffer or ArrayBuffer in Node
+
+## API
+
+Note: `cb(type)` means the type is a callback function that contains a parameter of type `type` when called.
+
+### Node
+
+- `encodePacket`
+    - Encodes a packet.
+    - **Parameters**
+      - `Object`: the packet to encode, has `type` and `data`.
+        - `data`: can be a `String`, `Number`, `Buffer`, `ArrayBuffer`
+      - `Boolean`: optional, binary support
+      - `Function`: callback, returns the encoded packet (`cb(String)`)
+- `decodePacket`
+    - Decodes a packet. Data also available as an ArrayBuffer if requested.
+    - Returns data as `String` or (`Blob` on browser, `ArrayBuffer` on Node)
+    - **Parameters**
+      - `String` | `ArrayBuffer`: the packet to decode, has `type` and `data`
+      - `String`: optional, the binary type
+
+- `encodeBase64Packet`
+    - Encodes a packet with binary data in a base64 string (`String`)
+    - **Parameters**
+      - `Object`: the packet to encode, has `type` and `data`
+      - `Function`: callback, returns the base64 encoded message (`cb(String)`)
+- `decodeBase64Packet`
+    - Decodes a packet encoded in a base64 string.
+    - **Parameters**
+      - `String`: the base64 encoded message
+      - `String`: optional, the binary type
+
+- `encodePayload`
+    - Encodes multiple messages (payload).
+    - If any contents are binary, they will be encoded as base64 strings. Base64
+      encoded strings are marked with a b before the length specifier
+    - **Parameters**
+      - `Array`: an array of packets
+      - `Boolean`: optional, binary support
+      - `Function`: callback, returns the encoded payload (`cb(String)`)
+- `decodePayload`
+    - Decodes data when a payload is maybe expected. Possible binary contents are
+      decoded from their base64 representation.
+    - **Parameters**
+      - `String`: the payload
+      - `String`: optional, the binary type
+      - `Function`: callback, returns (cb(`Object`: packet, `Number`:packet index, `Number`:packet total))
+
+- `encodePayloadAsBinary`
+    - Encodes multiple messages (payload) as binary.
+    - **Parameters**
+      - `Array`: an array of packets
+      - `Function`: callback, returns the encoded payload (`cb(Buffer)`)
+- `decodePayloadAsBinary`
+    - Decodes data when a payload is maybe expected. Strings are decoded by
+      interpreting each byte as a key code for entries marked to start with 0. See
+      description of encodePayloadAsBinary.
+    - **Parameters**
+      - `Buffer`: the buffer
+      - `String`: optional, the binary type
+      - `Function`: callback, returns the decoded packet (`cb(Object)`)
+
+### Browser
+
+- `encodePayloadAsArrayBuffer`
+    - Encodes multiple messages (payload) as binary.
+    - **Parameters**
+      - `Array`: an array of packets
+      - `Function`: callback, returns the encoded payload (`cb(ArrayBuffer)`)
+- `encodePayloadAsBlob`
+    - Encodes multiple messages (payload) as blob.
+    - **Parameters**
+      - `Array`: an array of packets
+      - `Function`: callback, returns the encoded payload (`cb(Blob)`)
+
+## Tests
+
+Standalone tests can be run with `make test` which will run both node.js and browser tests.
+
+Browser tests are run using [zuul](https://github.com/defunctzombie/zuul).
+(You must have zuul setup with a saucelabs account.)
+
+You can run the tests locally using the following command:
+
+```
+./node_modules/.bin/zuul --local 8080 -- test/index.js
+```
+
+## Support
+
+The support channels for `engine.io-parser` are the same as `socket.io`:
+  - irc.freenode.net **#socket.io**
+  - [Google Groups](http://groups.google.com/group/socket_io)
+  - [Website](http://socket.io)
+
+## Development
+
+To contribute patches, run tests or benchmarks, make sure to clone the
+repository:
+
+```bash
+git clone git://github.com/LearnBoost/engine.io-parser.git
+```
+
+Then:
+
+```bash
+cd engine.io-parser
+npm install
+```
+
+See the `Tests` section above for how to run tests before submitting any patches.
+
+## License
+
+MIT
diff --git a/helloworld/node_modules/engine.io-parser/lib/browser.js b/helloworld/node_modules/engine.io-parser/lib/browser.js
new file mode 100755
index 0000000..26b0964
--- /dev/null
+++ b/helloworld/node_modules/engine.io-parser/lib/browser.js
@@ -0,0 +1,605 @@
+/**
+ * Module dependencies.
+ */
+
+var keys = require('./keys');
+var hasBinary = require('has-binary2');
+var sliceBuffer = require('arraybuffer.slice');
+var after = require('after');
+var utf8 = require('./utf8');
+
+var base64encoder;
+if (typeof ArrayBuffer !== 'undefined') {
+  base64encoder = require('base64-arraybuffer');
+}
+
+/**
+ * Check if we are running an android browser. That requires us to use
+ * ArrayBuffer with polling transports...
+ *
+ * http://ghinda.net/jpeg-blob-ajax-android/
+ */
+
+var isAndroid = typeof navigator !== 'undefined' && /Android/i.test(navigator.userAgent);
+
+/**
+ * Check if we are running in PhantomJS.
+ * Uploading a Blob with PhantomJS does not work correctly, as reported here:
+ * https://github.com/ariya/phantomjs/issues/11395
+ * @type boolean
+ */
+var isPhantomJS = typeof navigator !== 'undefined' && /PhantomJS/i.test(navigator.userAgent);
+
+/**
+ * When true, avoids using Blobs to encode payloads.
+ * @type boolean
+ */
+var dontSendBlobs = isAndroid || isPhantomJS;
+
+/**
+ * Current protocol version.
+ */
+
+exports.protocol = 3;
+
+/**
+ * Packet types.
+ */
+
+var packets = exports.packets = {
+    open:     0    // non-ws
+  , close:    1    // non-ws
+  , ping:     2
+  , pong:     3
+  , message:  4
+  , upgrade:  5
+  , noop:     6
+};
+
+var packetslist = keys(packets);
+
+/**
+ * Premade error packet.
+ */
+
+var err = { type: 'error', data: 'parser error' };
+
+/**
+ * Create a blob api even for blob builder when vendor prefixes exist
+ */
+
+var Blob = require('blob');
+
+/**
+ * Encodes a packet.
+ *
+ *     <packet type id> [ <data> ]
+ *
+ * Example:
+ *
+ *     5hello world
+ *     3
+ *     4
+ *
+ * Binary is encoded in an identical principle
+ *
+ * @api private
+ */
+
+exports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {
+  if (typeof supportsBinary === 'function') {
+    callback = supportsBinary;
+    supportsBinary = false;
+  }
+
+  if (typeof utf8encode === 'function') {
+    callback = utf8encode;
+    utf8encode = null;
+  }
+
+  var data = (packet.data === undefined)
+    ? undefined
+    : packet.data.buffer || packet.data;
+
+  if (typeof ArrayBuffer !== 'undefined' && data instanceof ArrayBuffer) {
+    return encodeArrayBuffer(packet, supportsBinary, callback);
+  } else if (typeof Blob !== 'undefined' && data instanceof Blob) {
+    return encodeBlob(packet, supportsBinary, callback);
+  }
+
+  // might be an object with { base64: true, data: dataAsBase64String }
+  if (data && data.base64) {
+    return encodeBase64Object(packet, callback);
+  }
+
+  // Sending data as a utf-8 string
+  var encoded = packets[packet.type];
+
+  // data fragment is optional
+  if (undefined !== packet.data) {
+    encoded += utf8encode ? utf8.encode(String(packet.data), { strict: false }) : String(packet.data);
+  }
+
+  return callback('' + encoded);
+
+};
+
+function encodeBase64Object(packet, callback) {
+  // packet data is an object { base64: true, data: dataAsBase64String }
+  var message = 'b' + exports.packets[packet.type] + packet.data.data;
+  return callback(message);
+}
+
+/**
+ * Encode packet helpers for binary types
+ */
+
+function encodeArrayBuffer(packet, supportsBinary, callback) {
+  if (!supportsBinary) {
+    return exports.encodeBase64Packet(packet, callback);
+  }
+
+  var data = packet.data;
+  var contentArray = new Uint8Array(data);
+  var resultBuffer = new Uint8Array(1 + data.byteLength);
+
+  resultBuffer[0] = packets[packet.type];
+  for (var i = 0; i < contentArray.length; i++) {
+    resultBuffer[i+1] = contentArray[i];
+  }
+
+  return callback(resultBuffer.buffer);
+}
+
+function encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {
+  if (!supportsBinary) {
+    return exports.encodeBase64Packet(packet, callback);
+  }
+
+  var fr = new FileReader();
+  fr.onload = function() {
+    exports.encodePacket({ type: packet.type, data: fr.result }, supportsBinary, true, callback);
+  };
+  return fr.readAsArrayBuffer(packet.data);
+}
+
+function encodeBlob(packet, supportsBinary, callback) {
+  if (!supportsBinary) {
+    return exports.encodeBase64Packet(packet, callback);
+  }
+
+  if (dontSendBlobs) {
+    return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);
+  }
+
+  var length = new Uint8Array(1);
+  length[0] = packets[packet.type];
+  var blob = new Blob([length.buffer, packet.data]);
+
+  return callback(blob);
+}
+
+/**
+ * Encodes a packet with binary data in a base64 string
+ *
+ * @param {Object} packet, has `type` and `data`
+ * @return {String} base64 encoded message
+ */
+
+exports.encodeBase64Packet = function(packet, callback) {
+  var message = 'b' + exports.packets[packet.type];
+  if (typeof Blob !== 'undefined' && packet.data instanceof Blob) {
+    var fr = new FileReader();
+    fr.onload = function() {
+      var b64 = fr.result.split(',')[1];
+      callback(message + b64);
+    };
+    return fr.readAsDataURL(packet.data);
+  }
+
+  var b64data;
+  try {
+    b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));
+  } catch (e) {
+    // iPhone Safari doesn't let you apply with typed arrays
+    var typed = new Uint8Array(packet.data);
+    var basic = new Array(typed.length);
+    for (var i = 0; i < typed.length; i++) {
+      basic[i] = typed[i];
+    }
+    b64data = String.fromCharCode.apply(null, basic);
+  }
+  message += btoa(b64data);
+  return callback(message);
+};
+
+/**
+ * Decodes a packet. Changes format to Blob if requested.
+ *
+ * @return {Object} with `type` and `data` (if any)
+ * @api private
+ */
+
+exports.decodePacket = function (data, binaryType, utf8decode) {
+  if (data === undefined) {
+    return err;
+  }
+  // String data
+  if (typeof data === 'string') {
+    if (data.charAt(0) === 'b') {
+      return exports.decodeBase64Packet(data.substr(1), binaryType);
+    }
+
+    if (utf8decode) {
+      data = tryDecode(data);
+      if (data === false) {
+        return err;
+      }
+    }
+    var type = data.charAt(0);
+
+    if (Number(type) != type || !packetslist[type]) {
+      return err;
+    }
+
+    if (data.length > 1) {
+      return { type: packetslist[type], data: data.substring(1) };
+    } else {
+      return { type: packetslist[type] };
+    }
+  }
+
+  var asArray = new Uint8Array(data);
+  var type = asArray[0];
+  var rest = sliceBuffer(data, 1);
+  if (Blob && binaryType === 'blob') {
+    rest = new Blob([rest]);
+  }
+  return { type: packetslist[type], data: rest };
+};
+
+function tryDecode(data) {
+  try {
+    data = utf8.decode(data, { strict: false });
+  } catch (e) {
+    return false;
+  }
+  return data;
+}
+
+/**
+ * Decodes a packet encoded in a base64 string
+ *
+ * @param {String} base64 encoded message
+ * @return {Object} with `type` and `data` (if any)
+ */
+
+exports.decodeBase64Packet = function(msg, binaryType) {
+  var type = packetslist[msg.charAt(0)];
+  if (!base64encoder) {
+    return { type: type, data: { base64: true, data: msg.substr(1) } };
+  }
+
+  var data = base64encoder.decode(msg.substr(1));
+
+  if (binaryType === 'blob' && Blob) {
+    data = new Blob([data]);
+  }
+
+  return { type: type, data: data };
+};
+
+/**
+ * Encodes multiple messages (payload).
+ *
+ *     <length>:data
+ *
+ * Example:
+ *
+ *     11:hello world2:hi
+ *
+ * If any contents are binary, they will be encoded as base64 strings. Base64
+ * encoded strings are marked with a b before the length specifier
+ *
+ * @param {Array} packets
+ * @api private
+ */
+
+exports.encodePayload = function (packets, supportsBinary, callback) {
+  if (typeof supportsBinary === 'function') {
+    callback = supportsBinary;
+    supportsBinary = null;
+  }
+
+  var isBinary = hasBinary(packets);
+
+  if (supportsBinary && isBinary) {
+    if (Blob && !dontSendBlobs) {
+      return exports.encodePayloadAsBlob(packets, callback);
+    }
+
+    return exports.encodePayloadAsArrayBuffer(packets, callback);
+  }
+
+  if (!packets.length) {
+    return callback('0:');
+  }
+
+  function setLengthHeader(message) {
+    return message.length + ':' + message;
+  }
+
+  function encodeOne(packet, doneCallback) {
+    exports.encodePacket(packet, !isBinary ? false : supportsBinary, false, function(message) {
+      doneCallback(null, setLengthHeader(message));
+    });
+  }
+
+  map(packets, encodeOne, function(err, results) {
+    return callback(results.join(''));
+  });
+};
+
+/**
+ * Async array map using after
+ */
+
+function map(ary, each, done) {
+  var result = new Array(ary.length);
+  var next = after(ary.length, done);
+
+  var eachWithIndex = function(i, el, cb) {
+    each(el, function(error, msg) {
+      result[i] = msg;
+      cb(error, result);
+    });
+  };
+
+  for (var i = 0; i < ary.length; i++) {
+    eachWithIndex(i, ary[i], next);
+  }
+}
+
+/*
+ * Decodes data when a payload is maybe expected. Possible binary contents are
+ * decoded from their base64 representation
+ *
+ * @param {String} data, callback method
+ * @api public
+ */
+
+exports.decodePayload = function (data, binaryType, callback) {
+  if (typeof data !== 'string') {
+    return exports.decodePayloadAsBinary(data, binaryType, callback);
+  }
+
+  if (typeof binaryType === 'function') {
+    callback = binaryType;
+    binaryType = null;
+  }
+
+  var packet;
+  if (data === '') {
+    // parser error - ignoring payload
+    return callback(err, 0, 1);
+  }
+
+  var length = '', n, msg;
+
+  for (var i = 0, l = data.length; i < l; i++) {
+    var chr = data.charAt(i);
+
+    if (chr !== ':') {
+      length += chr;
+      continue;
+    }
+
+    if (length === '' || (length != (n = Number(length)))) {
+      // parser error - ignoring payload
+      return callback(err, 0, 1);
+    }
+
+    msg = data.substr(i + 1, n);
+
+    if (length != msg.length) {
+      // parser error - ignoring payload
+      return callback(err, 0, 1);
+    }
+
+    if (msg.length) {
+      packet = exports.decodePacket(msg, binaryType, false);
+
+      if (err.type === packet.type && err.data === packet.data) {
+        // parser error in individual packet - ignoring payload
+        return callback(err, 0, 1);
+      }
+
+      var ret = callback(packet, i + n, l);
+      if (false === ret) return;
+    }
+
+    // advance cursor
+    i += n;
+    length = '';
+  }
+
+  if (length !== '') {
+    // parser error - ignoring payload
+    return callback(err, 0, 1);
+  }
+
+};
+
+/**
+ * Encodes multiple messages (payload) as binary.
+ *
+ * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number
+ * 255><data>
+ *
+ * Example:
+ * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers
+ *
+ * @param {Array} packets
+ * @return {ArrayBuffer} encoded payload
+ * @api private
+ */
+
+exports.encodePayloadAsArrayBuffer = function(packets, callback) {
+  if (!packets.length) {
+    return callback(new ArrayBuffer(0));
+  }
+
+  function encodeOne(packet, doneCallback) {
+    exports.encodePacket(packet, true, true, function(data) {
+      return doneCallback(null, data);
+    });
+  }
+
+  map(packets, encodeOne, function(err, encodedPackets) {
+    var totalLength = encodedPackets.reduce(function(acc, p) {
+      var len;
+      if (typeof p === 'string'){
+        len = p.length;
+      } else {
+        len = p.byteLength;
+      }
+      return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2
+    }, 0);
+
+    var resultArray = new Uint8Array(totalLength);
+
+    var bufferIndex = 0;
+    encodedPackets.forEach(function(p) {
+      var isString = typeof p === 'string';
+      var ab = p;
+      if (isString) {
+        var view = new Uint8Array(p.length);
+        for (var i = 0; i < p.length; i++) {
+          view[i] = p.charCodeAt(i);
+        }
+        ab = view.buffer;
+      }
+
+      if (isString) { // not true binary
+        resultArray[bufferIndex++] = 0;
+      } else { // true binary
+        resultArray[bufferIndex++] = 1;
+      }
+
+      var lenStr = ab.byteLength.toString();
+      for (var i = 0; i < lenStr.length; i++) {
+        resultArray[bufferIndex++] = parseInt(lenStr[i]);
+      }
+      resultArray[bufferIndex++] = 255;
+
+      var view = new Uint8Array(ab);
+      for (var i = 0; i < view.length; i++) {
+        resultArray[bufferIndex++] = view[i];
+      }
+    });
+
+    return callback(resultArray.buffer);
+  });
+};
+
+/**
+ * Encode as Blob
+ */
+
+exports.encodePayloadAsBlob = function(packets, callback) {
+  function encodeOne(packet, doneCallback) {
+    exports.encodePacket(packet, true, true, function(encoded) {
+      var binaryIdentifier = new Uint8Array(1);
+      binaryIdentifier[0] = 1;
+      if (typeof encoded === 'string') {
+        var view = new Uint8Array(encoded.length);
+        for (var i = 0; i < encoded.length; i++) {
+          view[i] = encoded.charCodeAt(i);
+        }
+        encoded = view.buffer;
+        binaryIdentifier[0] = 0;
+      }
+
+      var len = (encoded instanceof ArrayBuffer)
+        ? encoded.byteLength
+        : encoded.size;
+
+      var lenStr = len.toString();
+      var lengthAry = new Uint8Array(lenStr.length + 1);
+      for (var i = 0; i < lenStr.length; i++) {
+        lengthAry[i] = parseInt(lenStr[i]);
+      }
+      lengthAry[lenStr.length] = 255;
+
+      if (Blob) {
+        var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);
+        doneCallback(null, blob);
+      }
+    });
+  }
+
+  map(packets, encodeOne, function(err, results) {
+    return callback(new Blob(results));
+  });
+};
+
+/*
+ * Decodes data when a payload is maybe expected. Strings are decoded by
+ * interpreting each byte as a key code for entries marked to start with 0. See
+ * description of encodePayloadAsBinary
+ *
+ * @param {ArrayBuffer} data, callback method
+ * @api public
+ */
+
+exports.decodePayloadAsBinary = function (data, binaryType, callback) {
+  if (typeof binaryType === 'function') {
+    callback = binaryType;
+    binaryType = null;
+  }
+
+  var bufferTail = data;
+  var buffers = [];
+
+  while (bufferTail.byteLength > 0) {
+    var tailArray = new Uint8Array(bufferTail);
+    var isString = tailArray[0] === 0;
+    var msgLength = '';
+
+    for (var i = 1; ; i++) {
+      if (tailArray[i] === 255) break;
+
+      // 310 = char length of Number.MAX_VALUE
+      if (msgLength.length > 310) {
+        return callback(err, 0, 1);
+      }
+
+      msgLength += tailArray[i];
+    }
+
+    bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);
+    msgLength = parseInt(msgLength);
+
+    var msg = sliceBuffer(bufferTail, 0, msgLength);
+    if (isString) {
+      try {
+        msg = String.fromCharCode.apply(null, new Uint8Array(msg));
+      } catch (e) {
+        // iPhone Safari doesn't let you apply to typed arrays
+        var typed = new Uint8Array(msg);
+        msg = '';
+        for (var i = 0; i < typed.length; i++) {
+          msg += String.fromCharCode(typed[i]);
+        }
+      }
+    }
+
+    buffers.push(msg);
+    bufferTail = sliceBuffer(bufferTail, msgLength);
+  }
+
+  var total = buffers.length;
+  buffers.forEach(function(buffer, i) {
+    callback(exports.decodePacket(buffer, binaryType, true), i, total);
+  });
+};
diff --git a/helloworld/node_modules/engine.io-parser/lib/index.js b/helloworld/node_modules/engine.io-parser/lib/index.js
new file mode 100755
index 0000000..4d9029b
--- /dev/null
+++ b/helloworld/node_modules/engine.io-parser/lib/index.js
@@ -0,0 +1,476 @@
+/**
+ * Module dependencies.
+ */
+
+var utf8 = require('./utf8');
+var hasBinary = require('has-binary2');
+var after = require('after');
+var keys = require('./keys');
+
+/**
+ * Current protocol version.
+ */
+exports.protocol = 3;
+
+/**
+ * Packet types.
+ */
+
+var packets = exports.packets = {
+    open:     0    // non-ws
+  , close:    1    // non-ws
+  , ping:     2
+  , pong:     3
+  , message:  4
+  , upgrade:  5
+  , noop:     6
+};
+
+var packetslist = keys(packets);
+
+/**
+ * Premade error packet.
+ */
+
+var err = { type: 'error', data: 'parser error' };
+
+/**
+ * Encodes a packet.
+ *
+ *     <packet type id> [ <data> ]
+ *
+ * Example:
+ *
+ *     5hello world
+ *     3
+ *     4
+ *
+ * Binary is encoded in an identical principle
+ *
+ * @api private
+ */
+
+exports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {
+  if (typeof supportsBinary === 'function') {
+    callback = supportsBinary;
+    supportsBinary = null;
+  }
+
+  if (typeof utf8encode === 'function') {
+    callback = utf8encode;
+    utf8encode = null;
+  }
+
+  if (Buffer.isBuffer(packet.data)) {
+    return encodeBuffer(packet, supportsBinary, callback);
+  } else if (packet.data && (packet.data.buffer || packet.data) instanceof ArrayBuffer) {
+    return encodeBuffer({ type: packet.type, data: arrayBufferToBuffer(packet.data) }, supportsBinary, callback);
+  }
+
+  // Sending data as a utf-8 string
+  var encoded = packets[packet.type];
+
+  // data fragment is optional
+  if (undefined !== packet.data) {
+    encoded += utf8encode ? utf8.encode(String(packet.data), { strict: false }) : String(packet.data);
+  }
+
+  return callback('' + encoded);
+};
+
+/**
+ * Encode Buffer data
+ */
+
+function encodeBuffer(packet, supportsBinary, callback) {
+  if (!supportsBinary) {
+    return exports.encodeBase64Packet(packet, callback);
+  }
+
+  var data = packet.data;
+  var typeBuffer = new Buffer(1);
+  typeBuffer[0] = packets[packet.type];
+  return callback(Buffer.concat([typeBuffer, data]));
+}
+
+/**
+ * Encodes a packet with binary data in a base64 string
+ *
+ * @param {Object} packet, has `type` and `data`
+ * @return {String} base64 encoded message
+ */
+
+exports.encodeBase64Packet = function(packet, callback){
+  var data = Buffer.isBuffer(packet.data) ? packet.data : arrayBufferToBuffer(packet.data);
+  var message = 'b' + packets[packet.type];
+  message += data.toString('base64');
+  return callback(message);
+};
+
+/**
+ * Decodes a packet. Data also available as an ArrayBuffer if requested.
+ *
+ * @return {Object} with `type` and `data` (if any)
+ * @api private
+ */
+
+exports.decodePacket = function (data, binaryType, utf8decode) {
+  if (data === undefined) {
+    return err;
+  }
+
+  var type;
+
+  // String data
+  if (typeof data === 'string') {
+
+    type = data.charAt(0);
+
+    if (type === 'b') {
+      return exports.decodeBase64Packet(data.substr(1), binaryType);
+    }
+
+    if (utf8decode) {
+      data = tryDecode(data);
+      if (data === false) {
+        return err;
+      }
+    }
+
+    if (Number(type) != type || !packetslist[type]) {
+      return err;
+    }
+
+    if (data.length > 1) {
+      return { type: packetslist[type], data: data.substring(1) };
+    } else {
+      return { type: packetslist[type] };
+    }
+  }
+
+  // Binary data
+  if (binaryType === 'arraybuffer') {
+    // wrap Buffer/ArrayBuffer data into an Uint8Array
+    var intArray = new Uint8Array(data);
+    type = intArray[0];
+    return { type: packetslist[type], data: intArray.buffer.slice(1) };
+  }
+
+  if (data instanceof ArrayBuffer) {
+    data = arrayBufferToBuffer(data);
+  }
+  type = data[0];
+  return { type: packetslist[type], data: data.slice(1) };
+};
+
+function tryDecode(data) {
+  try {
+    data = utf8.decode(data, { strict: false });
+  } catch (e) {
+    return false;
+  }
+  return data;
+}
+
+/**
+ * Decodes a packet encoded in a base64 string.
+ *
+ * @param {String} base64 encoded message
+ * @return {Object} with `type` and `data` (if any)
+ */
+
+exports.decodeBase64Packet = function(msg, binaryType) {
+  var type = packetslist[msg.charAt(0)];
+  var data = new Buffer(msg.substr(1), 'base64');
+  if (binaryType === 'arraybuffer') {
+    var abv = new Uint8Array(data.length);
+    for (var i = 0; i < abv.length; i++){
+      abv[i] = data[i];
+    }
+    data = abv.buffer;
+  }
+  return { type: type, data: data };
+};
+
+/**
+ * Encodes multiple messages (payload).
+ *
+ *     <length>:data
+ *
+ * Example:
+ *
+ *     11:hello world2:hi
+ *
+ * If any contents are binary, they will be encoded as base64 strings. Base64
+ * encoded strings are marked with a b before the length specifier
+ *
+ * @param {Array} packets
+ * @api private
+ */
+
+exports.encodePayload = function (packets, supportsBinary, callback) {
+  if (typeof supportsBinary === 'function') {
+    callback = supportsBinary;
+    supportsBinary = null;
+  }
+
+  if (supportsBinary && hasBinary(packets)) {
+    return exports.encodePayloadAsBinary(packets, callback);
+  }
+
+  if (!packets.length) {
+    return callback('0:');
+  }
+
+  function encodeOne(packet, doneCallback) {
+    exports.encodePacket(packet, supportsBinary, false, function(message) {
+      doneCallback(null, setLengthHeader(message));
+    });
+  }
+
+  map(packets, encodeOne, function(err, results) {
+    return callback(results.join(''));
+  });
+};
+
+function setLengthHeader(message) {
+  return message.length + ':' + message;
+}
+
+/**
+ * Async array map using after
+ */
+
+function map(ary, each, done) {
+  var result = new Array(ary.length);
+  var next = after(ary.length, done);
+
+  for (var i = 0; i < ary.length; i++) {
+    each(ary[i], function(error, msg) {
+      result[i] = msg;
+      next(error, result);
+    });
+  }
+}
+
+/*
+ * Decodes data when a payload is maybe expected. Possible binary contents are
+ * decoded from their base64 representation
+ *
+ * @param {String} data, callback method
+ * @api public
+ */
+
+exports.decodePayload = function (data, binaryType, callback) {
+  if (typeof data !== 'string') {
+    return exports.decodePayloadAsBinary(data, binaryType, callback);
+  }
+
+  if (typeof binaryType === 'function') {
+    callback = binaryType;
+    binaryType = null;
+  }
+
+  if (data === '') {
+    // parser error - ignoring payload
+    return callback(err, 0, 1);
+  }
+
+  var length = '', n, msg, packet;
+
+  for (var i = 0, l = data.length; i < l; i++) {
+    var chr = data.charAt(i);
+
+    if (chr !== ':') {
+      length += chr;
+      continue;
+    }
+
+    if (length === '' || (length != (n = Number(length)))) {
+      // parser error - ignoring payload
+      return callback(err, 0, 1);
+    }
+
+    msg = data.substr(i + 1, n);
+
+    if (length != msg.length) {
+      // parser error - ignoring payload
+      return callback(err, 0, 1);
+    }
+
+    if (msg.length) {
+      packet = exports.decodePacket(msg, binaryType, false);
+
+      if (err.type === packet.type && err.data === packet.data) {
+        // parser error in individual packet - ignoring payload
+        return callback(err, 0, 1);
+      }
+
+      var more = callback(packet, i + n, l);
+      if (false === more) return;
+    }
+
+    // advance cursor
+    i += n;
+    length = '';
+  }
+
+  if (length !== '') {
+    // parser error - ignoring payload
+    return callback(err, 0, 1);
+  }
+
+};
+
+/**
+ *
+ * Converts a buffer to a utf8.js encoded string
+ *
+ * @api private
+ */
+
+function bufferToString(buffer) {
+  var str = '';
+  for (var i = 0, l = buffer.length; i < l; i++) {
+    str += String.fromCharCode(buffer[i]);
+  }
+  return str;
+}
+
+/**
+ *
+ * Converts a utf8.js encoded string to a buffer
+ *
+ * @api private
+ */
+
+function stringToBuffer(string) {
+  var buf = new Buffer(string.length);
+  for (var i = 0, l = string.length; i < l; i++) {
+    buf.writeUInt8(string.charCodeAt(i), i);
+  }
+  return buf;
+}
+
+/**
+ *
+ * Converts an ArrayBuffer to a Buffer
+ *
+ * @api private
+ */
+
+function arrayBufferToBuffer(data) {
+  // data is either an ArrayBuffer or ArrayBufferView.
+  var array = new Uint8Array(data.buffer || data);
+  var length = data.byteLength || data.length;
+  var offset = data.byteOffset || 0;
+  var buffer = new Buffer(length);
+
+  for (var i = 0; i < length; i++) {
+    buffer[i] = array[offset + i];
+  }
+  return buffer;
+}
+
+/**
+ * Encodes multiple messages (payload) as binary.
+ *
+ * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number
+ * 255><data>
+ *
+ * Example:
+ * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers
+ *
+ * @param {Array} packets
+ * @return {Buffer} encoded payload
+ * @api private
+ */
+
+exports.encodePayloadAsBinary = function (packets, callback) {
+  if (!packets.length) {
+    return callback(new Buffer(0));
+  }
+
+  map(packets, encodeOneBinaryPacket, function(err, results) {
+    return callback(Buffer.concat(results));
+  });
+};
+
+function encodeOneBinaryPacket(p, doneCallback) {
+
+  function onBinaryPacketEncode(packet) {
+
+    var encodingLength = '' + packet.length;
+    var sizeBuffer;
+
+    if (typeof packet === 'string') {
+      sizeBuffer = new Buffer(encodingLength.length + 2);
+      sizeBuffer[0] = 0; // is a string (not true binary = 0)
+      for (var i = 0; i < encodingLength.length; i++) {
+        sizeBuffer[i + 1] = parseInt(encodingLength[i], 10);
+      }
+      sizeBuffer[sizeBuffer.length - 1] = 255;
+      return doneCallback(null, Buffer.concat([sizeBuffer, stringToBuffer(packet)]));
+    }
+
+    sizeBuffer = new Buffer(encodingLength.length + 2);
+    sizeBuffer[0] = 1; // is binary (true binary = 1)
+    for (var i = 0; i < encodingLength.length; i++) {
+      sizeBuffer[i + 1] = parseInt(encodingLength[i], 10);
+    }
+    sizeBuffer[sizeBuffer.length - 1] = 255;
+
+    doneCallback(null, Buffer.concat([sizeBuffer, packet]));
+  }
+
+  exports.encodePacket(p, true, true, onBinaryPacketEncode);
+
+}
+
+
+/*
+ * Decodes data when a payload is maybe expected. Strings are decoded by
+ * interpreting each byte as a key code for entries marked to start with 0. See
+ * description of encodePayloadAsBinary
+
+ * @param {Buffer} data, callback method
+ * @api public
+ */
+
+exports.decodePayloadAsBinary = function (data, binaryType, callback) {
+  if (typeof binaryType === 'function') {
+    callback = binaryType;
+    binaryType = null;
+  }
+
+  var bufferTail = data;
+  var buffers = [];
+  var i;
+
+  while (bufferTail.length > 0) {
+    var strLen = '';
+    var isString = bufferTail[0] === 0;
+    for (i = 1; ; i++) {
+      if (bufferTail[i] === 255)  break;
+      // 310 = char length of Number.MAX_VALUE
+      if (strLen.length > 310) {
+        return callback(err, 0, 1);
+      }
+      strLen += '' + bufferTail[i];
+    }
+    bufferTail = bufferTail.slice(strLen.length + 1);
+
+    var msgLength = parseInt(strLen, 10);
+
+    var msg = bufferTail.slice(1, msgLength + 1);
+    if (isString) msg = bufferToString(msg);
+    buffers.push(msg);
+    bufferTail = bufferTail.slice(msgLength + 1);
+  }
+
+  var total = buffers.length;
+  for (i = 0; i < total; i++) {
+    var buffer = buffers[i];
+    callback(exports.decodePacket(buffer, binaryType, true), i, total);
+  }
+};
diff --git a/helloworld/node_modules/engine.io-parser/lib/keys.js b/helloworld/node_modules/engine.io-parser/lib/keys.js
new file mode 100755
index 0000000..947dafd
--- /dev/null
+++ b/helloworld/node_modules/engine.io-parser/lib/keys.js
@@ -0,0 +1,19 @@
+
+/**
+ * Gets the keys for an object.
+ *
+ * @return {Array} keys
+ * @api private
+ */
+
+module.exports = Object.keys || function keys (obj){
+  var arr = [];
+  var has = Object.prototype.hasOwnProperty;
+
+  for (var i in obj) {
+    if (has.call(obj, i)) {
+      arr.push(i);
+    }
+  }
+  return arr;
+};
diff --git a/helloworld/node_modules/engine.io-parser/lib/utf8.js b/helloworld/node_modules/engine.io-parser/lib/utf8.js
new file mode 100755
index 0000000..b878740
--- /dev/null
+++ b/helloworld/node_modules/engine.io-parser/lib/utf8.js
@@ -0,0 +1,210 @@
+/*! https://mths.be/utf8js v2.1.2 by @mathias */
+
+var stringFromCharCode = String.fromCharCode;
+
+// Taken from https://mths.be/punycode
+function ucs2decode(string) {
+	var output = [];
+	var counter = 0;
+	var length = string.length;
+	var value;
+	var extra;
+	while (counter < length) {
+		value = string.charCodeAt(counter++);
+		if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
+			// high surrogate, and there is a next character
+			extra = string.charCodeAt(counter++);
+			if ((extra & 0xFC00) == 0xDC00) { // low surrogate
+				output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
+			} else {
+				// unmatched surrogate; only append this code unit, in case the next
+				// code unit is the high surrogate of a surrogate pair
+				output.push(value);
+				counter--;
+			}
+		} else {
+			output.push(value);
+		}
+	}
+	return output;
+}
+
+// Taken from https://mths.be/punycode
+function ucs2encode(array) {
+	var length = array.length;
+	var index = -1;
+	var value;
+	var output = '';
+	while (++index < length) {
+		value = array[index];
+		if (value > 0xFFFF) {
+			value -= 0x10000;
+			output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
+			value = 0xDC00 | value & 0x3FF;
+		}
+		output += stringFromCharCode(value);
+	}
+	return output;
+}
+
+function checkScalarValue(codePoint, strict) {
+	if (codePoint >= 0xD800 && codePoint <= 0xDFFF) {
+		if (strict) {
+			throw Error(
+				'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +
+				' is not a scalar value'
+			);
+		}
+		return false;
+	}
+	return true;
+}
+/*--------------------------------------------------------------------------*/
+
+function createByte(codePoint, shift) {
+	return stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);
+}
+
+function encodeCodePoint(codePoint, strict) {
+	if ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence
+		return stringFromCharCode(codePoint);
+	}
+	var symbol = '';
+	if ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence
+		symbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);
+	}
+	else if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence
+		if (!checkScalarValue(codePoint, strict)) {
+			codePoint = 0xFFFD;
+		}
+		symbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);
+		symbol += createByte(codePoint, 6);
+	}
+	else if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence
+		symbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);
+		symbol += createByte(codePoint, 12);
+		symbol += createByte(codePoint, 6);
+	}
+	symbol += stringFromCharCode((codePoint & 0x3F) | 0x80);
+	return symbol;
+}
+
+function utf8encode(string, opts) {
+	opts = opts || {};
+	var strict = false !== opts.strict;
+
+	var codePoints = ucs2decode(string);
+	var length = codePoints.length;
+	var index = -1;
+	var codePoint;
+	var byteString = '';
+	while (++index < length) {
+		codePoint = codePoints[index];
+		byteString += encodeCodePoint(codePoint, strict);
+	}
+	return byteString;
+}
+
+/*--------------------------------------------------------------------------*/
+
+function readContinuationByte() {
+	if (byteIndex >= byteCount) {
+		throw Error('Invalid byte index');
+	}
+
+	var continuationByte = byteArray[byteIndex] & 0xFF;
+	byteIndex++;
+
+	if ((continuationByte & 0xC0) == 0x80) {
+		return continuationByte & 0x3F;
+	}
+
+	// If we end up here, it’s not a continuation byte
+	throw Error('Invalid continuation byte');
+}
+
+function decodeSymbol(strict) {
+	var byte1;
+	var byte2;
+	var byte3;
+	var byte4;
+	var codePoint;
+
+	if (byteIndex > byteCount) {
+		throw Error('Invalid byte index');
+	}
+
+	if (byteIndex == byteCount) {
+		return false;
+	}
+
+	// Read first byte
+	byte1 = byteArray[byteIndex] & 0xFF;
+	byteIndex++;
+
+	// 1-byte sequence (no continuation bytes)
+	if ((byte1 & 0x80) == 0) {
+		return byte1;
+	}
+
+	// 2-byte sequence
+	if ((byte1 & 0xE0) == 0xC0) {
+		byte2 = readContinuationByte();
+		codePoint = ((byte1 & 0x1F) << 6) | byte2;
+		if (codePoint >= 0x80) {
+			return codePoint;
+		} else {
+			throw Error('Invalid continuation byte');
+		}
+	}
+
+	// 3-byte sequence (may include unpaired surrogates)
+	if ((byte1 & 0xF0) == 0xE0) {
+		byte2 = readContinuationByte();
+		byte3 = readContinuationByte();
+		codePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;
+		if (codePoint >= 0x0800) {
+			return checkScalarValue(codePoint, strict) ? codePoint : 0xFFFD;
+		} else {
+			throw Error('Invalid continuation byte');
+		}
+	}
+
+	// 4-byte sequence
+	if ((byte1 & 0xF8) == 0xF0) {
+		byte2 = readContinuationByte();
+		byte3 = readContinuationByte();
+		byte4 = readContinuationByte();
+		codePoint = ((byte1 & 0x07) << 0x12) | (byte2 << 0x0C) |
+			(byte3 << 0x06) | byte4;
+		if (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {
+			return codePoint;
+		}
+	}
+
+	throw Error('Invalid UTF-8 detected');
+}
+
+var byteArray;
+var byteCount;
+var byteIndex;
+function utf8decode(byteString, opts) {
+	opts = opts || {};
+	var strict = false !== opts.strict;
+
+	byteArray = ucs2decode(byteString);
+	byteCount = byteArray.length;
+	byteIndex = 0;
+	var codePoints = [];
+	var tmp;
+	while ((tmp = decodeSymbol(strict)) !== false) {
+		codePoints.push(tmp);
+	}
+	return ucs2encode(codePoints);
+}
+
+module.exports = {
+	version: '2.1.2',
+	encode: utf8encode,
+	decode: utf8decode
+};
diff --git a/helloworld/node_modules/engine.io/LICENSE b/helloworld/node_modules/engine.io/LICENSE
new file mode 100755
index 0000000..6494c3c
--- /dev/null
+++ b/helloworld/node_modules/engine.io/LICENSE
@@ -0,0 +1,19 @@
+(The MIT License)
+
+Copyright (c) 2014 Guillermo Rauch <guillermo@learnboost.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
+and associated documentation files (the 'Software'), to deal in the Software without restriction, 
+including without limitation the rights to use, copy, modify, merge, publish, distribute, 
+sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is 
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or 
+substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 
+BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/helloworld/node_modules/engine.io/README.md b/helloworld/node_modules/engine.io/README.md
new file mode 100755
index 0000000..7c63206
--- /dev/null
+++ b/helloworld/node_modules/engine.io/README.md
@@ -0,0 +1,564 @@
+
+# Engine.IO: the realtime engine
+
+[![Build Status](https://travis-ci.org/socketio/engine.io.svg?branch=master)](http://travis-ci.org/socketio/engine.io)
+[![NPM version](https://badge.fury.io/js/engine.io.svg)](http://badge.fury.io/js/engine.io)
+
+`Engine.IO` is the implementation of transport-based
+cross-browser/cross-device bi-directional communication layer for
+[Socket.IO](http://github.com/socketio/socket.io).
+
+## How to use
+
+### Server
+
+#### (A) Listening on a port
+
+```js
+var engine = require('engine.io');
+var server = engine.listen(80);
+
+server.on('connection', function(socket){
+  socket.send('utf 8 string');
+  socket.send(Buffer.from([0, 1, 2, 3, 4, 5])); // binary data
+});
+```
+
+#### (B) Intercepting requests for a http.Server
+
+```js
+var engine = require('engine.io');
+var http = require('http').createServer().listen(3000);
+var server = engine.attach(http);
+
+server.on('connection', function (socket) {
+  socket.on('message', function(data){ });
+  socket.on('close', function(){ });
+});
+```
+
+#### (C) Passing in requests
+
+```js
+var engine = require('engine.io');
+var server = new engine.Server();
+
+server.on('connection', function(socket){
+  socket.send('hi');
+});
+
+// …
+httpServer.on('upgrade', function(req, socket, head){
+  server.handleUpgrade(req, socket, head);
+});
+httpServer.on('request', function(req, res){
+  server.handleRequest(req, res);
+});
+```
+
+### Client
+
+```html
+<script src="/path/to/engine.io.js"></script>
+<script>
+  var socket = new eio.Socket('ws://localhost/');
+  socket.on('open', function(){
+    socket.on('message', function(data){});
+    socket.on('close', function(){});
+  });
+</script>
+```
+
+For more information on the client refer to the
+[engine-client](http://github.com/learnboost/engine.io-client) repository.
+
+## What features does it have?
+
+- **Maximum reliability**. Connections are established even in the presence of:
+  - proxies and load balancers.
+  - personal firewall and antivirus software.
+  - for more information refer to **Goals** and **Architecture** sections
+- **Minimal client size** aided by:
+  - lazy loading of flash transports.
+  - lack of redundant transports.
+- **Scalable**
+  - load balancer friendly
+- **Future proof**
+- **100% Node.JS core style**
+  - No API sugar (left for higher level projects)
+  - Written in readable vanilla JavaScript
+
+## API
+
+### Server
+
+<hr><br>
+
+#### Top-level
+
+These are exposed by `require('engine.io')`:
+
+##### Events
+
+- `flush`
+    - Called when a socket buffer is being flushed.
+    - **Arguments**
+      - `Socket`: socket being flushed
+      - `Array`: write buffer
+- `drain`
+    - Called when a socket buffer is drained
+    - **Arguments**
+      - `Socket`: socket being flushed
+
+##### Properties
+
+- `protocol` _(Number)_: protocol revision number
+- `Server`: Server class constructor
+- `Socket`: Socket class constructor
+- `Transport` _(Function)_: transport constructor
+- `transports` _(Object)_: map of available transports
+
+##### Methods
+
+- `()`
+    - Returns a new `Server` instance. If the first argument is an `http.Server` then the
+      new `Server` instance will be attached to it. Otherwise, the arguments are passed
+      directly to the `Server` constructor.
+    - **Parameters**
+      - `http.Server`: optional, server to attach to.
+      - `Object`: optional, options object (see `Server#constructor` api docs below)
+
+  The following are identical ways to instantiate a server and then attach it.
+
+```js
+var httpServer; // previously created with `http.createServer();` from node.js api.
+
+// create a server first, and then attach
+var eioServer = require('engine.io').Server();
+eioServer.attach(httpServer);
+
+// or call the module as a function to get `Server`
+var eioServer = require('engine.io')();
+eioServer.attach(httpServer);
+
+// immediately attach
+var eioServer = require('engine.io')(httpServer);
+
+// with custom options
+var eioServer = require('engine.io')(httpServer, {
+  maxHttpBufferSize: 1e3
+});
+```
+
+- `listen`
+    - Creates an `http.Server` which listens on the given port and attaches WS
+      to it. It returns `501 Not Implemented` for regular http requests.
+    - **Parameters**
+      - `Number`: port to listen on.
+      - `Object`: optional, options object
+      - `Function`: callback for `listen`.
+    - **Options**
+      - All options from `Server.attach` method, documented below.
+      - **Additionally** See Server `constructor` below for options you can pass for creating the new Server
+    - **Returns** `Server`
+
+```js
+var engine = require('engine.io');
+var server = engine.listen(3000, {
+  pingTimeout: 2000,
+  pingInterval: 10000
+});
+
+server.on('connection', /* ... */);
+```
+
+- `attach`
+    - Captures `upgrade` requests for a `http.Server`. In other words, makes
+      a regular http.Server WebSocket-compatible.
+    - **Parameters**
+      - `http.Server`: server to attach to.
+      - `Object`: optional, options object
+    - **Options**
+      - All options from `Server.attach` method, documented below.
+      - **Additionally** See Server `constructor` below for options you can pass for creating the new Server
+    - **Returns** `Server` a new Server instance.
+
+```js
+var engine = require('engine.io');
+var httpServer = require('http').createServer().listen(3000);
+var server = engine.attach(httpServer, {
+  wsEngine: 'uws' // requires having uws as dependency
+});
+
+server.on('connection', /* ... */);
+```
+
+#### Server
+
+The main server/manager. _Inherits from EventEmitter_.
+
+##### Events
+
+- `connection`
+    - Fired when a new connection is established.
+    - **Arguments**
+      - `Socket`: a Socket object
+
+##### Properties
+
+**Important**: if you plan to use Engine.IO in a scalable way, please
+keep in mind the properties below will only reflect the clients connected
+to a single process.
+
+- `clients` _(Object)_: hash of connected clients by id.
+- `clientsCount` _(Number)_: number of connected clients.
+
+##### Methods
+
+- **constructor**
+    - Initializes the server
+    - **Parameters**
+      - `Object`: optional, options object
+    - **Options**
+      - `pingTimeout` (`Number`): how many ms without a pong packet to
+        consider the connection closed (`5000`)
+      - `pingInterval` (`Number`): how many ms before sending a new ping
+        packet (`25000`)
+      - `upgradeTimeout` (`Number`): how many ms before an uncompleted transport upgrade is cancelled (`10000`)
+      - `maxHttpBufferSize` (`Number`): how many bytes or characters a message
+        can be, before closing the session (to avoid DoS). Default
+        value is `10E7`.
+      - `allowRequest` (`Function`): A function that receives a given handshake
+        or upgrade request as its first parameter, and can decide whether to
+        continue or not. The second argument is a function that needs to be
+        called with the decided information: `fn(err, success)`, where
+        `success` is a boolean value where false means that the request is
+        rejected, and err is an error code.
+      - `transports` (`<Array> String`): transports to allow connections
+        to (`['polling', 'websocket']`)
+      - `allowUpgrades` (`Boolean`): whether to allow transport upgrades
+        (`true`)
+      - `perMessageDeflate` (`Object|Boolean`): parameters of the WebSocket permessage-deflate extension
+        (see [ws module](https://github.com/einaros/ws) api docs). Set to `false` to disable. (`true`)
+        - `threshold` (`Number`): data is compressed only if the byte size is above this value (`1024`)
+      - `httpCompression` (`Object|Boolean`): parameters of the http compression for the polling transports
+        (see [zlib](http://nodejs.org/api/zlib.html#zlib_options) api docs). Set to `false` to disable. (`true`)
+        - `threshold` (`Number`): data is compressed only if the byte size is above this value (`1024`)
+      - `cookie` (`String|Boolean`): name of the HTTP cookie that
+        contains the client sid to send as part of handshake response
+        headers. Set to `false` to not send one. (`io`)
+      - `cookiePath` (`String|Boolean`): path of the above `cookie`
+        option. If false, no path will be sent, which means browsers will only send the cookie on the engine.io attached path (`/engine.io`).
+        Set false to not save io cookie on all requests. (`/`)
+      - `cookieHttpOnly` (`Boolean`): If `true` HttpOnly io cookie cannot be accessed by client-side APIs, such as JavaScript. (`true`) _This option has no effect if `cookie` or `cookiePath` is set to `false`._
+      - `wsEngine` (`String`): what WebSocket server implementation to use. Specified module must conform to the `ws` interface (see [ws module api docs](https://github.com/websockets/ws/blob/master/doc/ws.md)). Default value is `ws`. An alternative c++ addon is also available by installing `uws` module.
+      - `initialPacket` (`Object`): an optional packet which will be concatenated to the handshake packet emitted by Engine.IO.
+- `close`
+    - Closes all clients
+    - **Returns** `Server` for chaining
+- `handleRequest`
+    - Called internally when a `Engine` request is intercepted.
+    - **Parameters**
+      - `http.IncomingMessage`: a node request object
+      - `http.ServerResponse`: a node response object
+    - **Returns** `Server` for chaining
+- `handleUpgrade`
+    - Called internally when a `Engine` ws upgrade is intercepted.
+    - **Parameters** (same as `upgrade` event)
+      - `http.IncomingMessage`: a node request object
+      - `net.Stream`: TCP socket for the request
+      - `Buffer`: legacy tail bytes
+    - **Returns** `Server` for chaining
+- `attach`
+    - Attach this Server instance to an `http.Server`
+    - Captures `upgrade` requests for a `http.Server`. In other words, makes
+      a regular http.Server WebSocket-compatible.
+    - **Parameters**
+      - `http.Server`: server to attach to.
+      - `Object`: optional, options object
+    - **Options**
+      - `path` (`String`): name of the path to capture (`/engine.io`).
+      - `destroyUpgrade` (`Boolean`): destroy unhandled upgrade requests (`true`)
+      - `destroyUpgradeTimeout` (`Number`): milliseconds after which unhandled requests are ended (`1000`)
+      - `handlePreflightRequest` (`Boolean|Function`): whether to let engine.io handle the OPTIONS requests. You can also pass a custom function to handle the requests (`true`)
+- `generateId`
+    - Generate a socket id.
+    - Overwrite this method to generate your custom socket id.
+    - **Parameters**
+      - `http.IncomingMessage`: a node request object
+  - **Returns** A socket id for connected client.
+
+<hr><br>
+
+#### Socket
+
+A representation of a client. _Inherits from EventEmitter_.
+
+##### Events
+
+- `close`
+    - Fired when the client is disconnected.
+    - **Arguments**
+      - `String`: reason for closing
+      - `Object`: description object (optional)
+- `message`
+    - Fired when the client sends a message.
+    - **Arguments**
+      - `String` or `Buffer`: Unicode string or Buffer with binary contents
+- `error`
+    - Fired when an error occurs.
+    - **Arguments**
+      - `Error`: error object
+- `flush`
+    - Called when the write buffer is being flushed.
+    - **Arguments**
+      - `Array`: write buffer
+- `drain`
+    - Called when the write buffer is drained
+- `packet`
+    - Called when a socket received a packet (`message`, `ping`)
+    - **Arguments**
+      - `type`: packet type
+      - `data`: packet data (if type is message)
+- `packetCreate`
+    - Called before a socket sends a packet (`message`, `pong`)
+    - **Arguments**
+      - `type`: packet type
+      - `data`: packet data (if type is message)
+
+##### Properties
+
+- `id` _(String)_: unique identifier
+- `server` _(Server)_: engine parent reference
+- `request` _(http.IncomingMessage)_: request that originated the Socket
+- `upgraded` _(Boolean)_: whether the transport has been upgraded
+- `readyState` _(String)_: opening|open|closing|closed
+- `transport` _(Transport)_: transport reference
+
+##### Methods
+
+- `send`:
+    - Sends a message, performing `message = toString(arguments[0])` unless
+      sending binary data, which is sent as is.
+    - **Parameters**
+      - `String` | `Buffer` | `ArrayBuffer` | `ArrayBufferView`: a string or any object implementing `toString()`, with outgoing data, or a Buffer or ArrayBuffer with binary data. Also any ArrayBufferView can be sent as is.
+      - `Object`: optional, options object
+      - `Function`: optional, a callback executed when the message gets flushed out by the transport
+    - **Options**
+      - `compress` (`Boolean`): whether to compress sending data. This option might be ignored and forced to be `true` when using polling. (`true`)
+    - **Returns** `Socket` for chaining
+- `close`
+    - Disconnects the client
+    - **Returns** `Socket` for chaining
+
+### Client
+
+<hr><br>
+
+Exposed in the `eio` global namespace (in the browser), or by
+`require('engine.io-client')` (in Node.JS).
+
+For the client API refer to the
+[engine-client](http://github.com/learnboost/engine.io-client) repository.
+
+## Debug / logging
+
+Engine.IO is powered by [debug](http://github.com/visionmedia/debug).
+In order to see all the debug output, run your app with the environment variable
+`DEBUG` including the desired scope.
+
+To see the output from all of Engine.IO's debugging scopes you can use:
+
+```
+DEBUG=engine* node myapp
+```
+
+## Transports
+
+- `polling`: XHR / JSONP polling transport.
+- `websocket`: WebSocket transport.
+
+## Plugins
+
+- [engine.io-conflation](https://github.com/EugenDueck/engine.io-conflation): Makes **conflation and aggregation** of messages straightforward.
+
+## Support
+
+The support channels for `engine.io` are the same as `socket.io`:
+  - irc.freenode.net **#socket.io**
+  - [Google Groups](http://groups.google.com/group/socket_io)
+  - [Website](http://socket.io)
+
+## Development
+
+To contribute patches, run tests or benchmarks, make sure to clone the
+repository:
+
+```
+git clone git://github.com/LearnBoost/engine.io.git
+```
+
+Then:
+
+```
+cd engine.io
+npm install
+```
+
+## Tests
+
+Tests run with `npm test`. It runs the server tests that are aided by
+the usage of `engine.io-client`.
+
+Make sure `npm install` is run first.
+
+## Goals
+
+The main goal of `Engine` is ensuring the most reliable realtime communication.
+Unlike the previous Socket.IO core, it always establishes a long-polling
+connection first, then tries to upgrade to better transports that are "tested" on
+the side.
+
+During the lifetime of the Socket.IO projects, we've found countless drawbacks
+to relying on `HTML5 WebSocket` or `Flash Socket` as the first connection
+mechanisms.
+
+Both are clearly the _right way_ of establishing a bidirectional communication,
+with HTML5 WebSocket being the way of the future. However, to answer most business
+needs, alternative traditional HTTP 1.1 mechanisms are just as good as delivering
+the same solution.
+
+WebSocket based connections have two fundamental benefits:
+
+1. **Better server performance**
+  - _A: Load balancers_<br>
+      Load balancing a long polling connection poses a serious architectural nightmare
+      since requests can come from any number of open sockets by the user agent, but
+      they all need to be routed to the process and computer that owns the `Engine`
+      connection. This negatively impacts RAM and CPU usage.
+  - _B: Network traffic_<br>
+      WebSocket is designed around the premise that each message frame has to be
+      surrounded by the least amount of data. In HTTP 1.1 transports, each message
+      frame is surrounded by HTTP headers and chunked encoding frames. If you try to
+      send the message _"Hello world"_ with xhr-polling, the message ultimately
+      becomes larger than if you were to send it with WebSocket.
+  - _C: Lightweight parser_<br>
+      As an effect of **B**, the server has to do a lot more work to parse the network
+      data and figure out the message when traditional HTTP requests are used
+      (as in long polling). This means that another advantage of WebSocket is
+      less server CPU usage.
+
+2. **Better user experience**
+
+    Due to the reasons stated in point **1**, the most important effect of being able
+    to establish a WebSocket connection is raw data transfer speed, which translates
+    in _some_ cases in better user experience.
+
+    Applications with heavy realtime interaction (such as games) will benefit greatly,
+    whereas applications like realtime chat (Gmail/Facebook), newsfeeds (Facebook) or
+    timelines (Twitter) will have negligible user experience improvements.
+
+Having said this, attempting to establish a WebSocket connection directly so far has
+proven problematic:
+
+1. **Proxies**<br>
+    Many corporate proxies block WebSocket traffic.
+
+2. **Personal firewall and antivirus software**<br>
+    As a result of our research, we've found that at least 3 personal security
+    applications block WebSocket traffic.
+
+3. **Cloud application platforms**<br>
+    Platforms like Heroku or No.de have had trouble keeping up with the fast-paced
+    nature of the evolution of the WebSocket protocol. Applications therefore end up
+    inevitably using long polling, but the seamless installation experience of
+    Socket.IO we strive for (_"require() it and it just works"_) disappears.
+
+Some of these problems have solutions. In the case of proxies and personal programs,
+however, the solutions many times involve upgrading software. Experience has shown
+that relying on client software upgrades to deliver a business solution is
+fruitless: the very existence of this project has to do with a fragmented panorama
+of user agent distribution, with clients connecting with latest versions of the most
+modern user agents (Chrome, Firefox and Safari), but others with versions as low as
+IE 5.5.
+
+From the user perspective, an unsuccessful WebSocket connection can translate in
+up to at least 10 seconds of waiting for the realtime application to begin
+exchanging data. This **perceptively** hurts user experience.
+
+To summarize, **Engine** focuses on reliability and user experience first, marginal
+potential UX improvements and increased server performance second. `Engine` is the
+result of all the lessons learned with WebSocket in the wild.
+
+## Architecture
+
+The main premise of `Engine`, and the core of its existence, is the ability to
+swap transports on the fly. A connection starts as xhr-polling, but it can
+switch to WebSocket.
+
+The central problem this poses is: how do we switch transports without losing
+messages?
+
+`Engine` only switches from polling to another transport in between polling
+cycles. Since the server closes the connection after a certain timeout when
+there's no activity, and the polling transport implementation buffers messages
+in between connections, this ensures no message loss and optimal performance.
+
+Another benefit of this design is that we workaround almost all the limitations
+of **Flash Socket**, such as slow connection times, increased file size (we can
+safely lazy load it without hurting user experience), etc.
+
+## FAQ
+
+### Can I use engine without Socket.IO ?
+
+Absolutely. Although the recommended framework for building realtime applications
+is Socket.IO, since it provides fundamental features for real-world applications
+such as multiplexing, reconnection support, etc.
+
+`Engine` is to Socket.IO what Connect is to Express. An essential piece for building
+realtime frameworks, but something you _probably_ won't be using for building
+actual applications.
+
+### Does the server serve the client?
+
+No. The main reason is that `Engine` is meant to be bundled with frameworks.
+Socket.IO includes `Engine`, therefore serving two clients is not necessary. If
+you use Socket.IO, including
+
+```html
+<script src="/socket.io/socket.io.js">
+```
+
+has you covered.
+
+### Can I implement `Engine` in other languages?
+
+Absolutely. The [engine.io-protocol](https://github.com/LearnBoost/engine.io-protocol)
+repository contains the most up to date description of the specification
+at all times, and the parser implementation in JavaScript.
+
+## License
+
+(The MIT License)
+
+Copyright (c) 2014 Guillermo Rauch &lt;guillermo@learnboost.com&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/engine.io/lib/engine.io.js b/helloworld/node_modules/engine.io/lib/engine.io.js
new file mode 100755
index 0000000..2a211c2
--- /dev/null
+++ b/helloworld/node_modules/engine.io/lib/engine.io.js
@@ -0,0 +1,126 @@
+/**
+ * Module dependencies.
+ */
+
+var http = require('http');
+
+/**
+ * Invoking the library as a function delegates to attach if the first argument
+ * is an `http.Server`.
+ *
+ * If there are no arguments or the first argument is an options object, then
+ * a new Server instance is returned.
+ *
+ * @param {http.Server} server (if specified, will be attached to by the new Server instance)
+ * @param {Object} options
+ * @return {Server} engine server
+ * @api public
+ */
+
+exports = module.exports = function () {
+  // backwards compatible use as `.attach`
+  // if first argument is an http server
+  if (arguments.length && arguments[0] instanceof http.Server) {
+    return attach.apply(this, arguments);
+  }
+
+  // if first argument is not an http server, then just make a regular eio server
+  return exports.Server.apply(null, arguments);
+};
+
+/**
+ * Protocol revision number.
+ *
+ * @api public
+ */
+
+exports.protocol = 1;
+
+/**
+ * Expose Server constructor.
+ *
+ * @api public
+ */
+
+exports.Server = require('./server');
+
+/**
+ * Expose Socket constructor.
+ *
+ * @api public
+ */
+
+exports.Socket = require('./socket');
+
+/**
+ * Expose Transport constructor.
+ *
+ * @api public
+ */
+
+exports.Transport = require('./transport');
+
+/**
+ * Expose mutable list of available transports.
+ *
+ * @api public
+ */
+
+exports.transports = require('./transports');
+
+/**
+ * Exports parser.
+ *
+ * @api public
+ */
+
+exports.parser = require('engine.io-parser');
+
+/**
+ * Creates an http.Server exclusively used for WS upgrades.
+ *
+ * @param {Number} port
+ * @param {Function} callback
+ * @param {Object} options
+ * @return {Server} websocket.io server
+ * @api public
+ */
+
+exports.listen = listen;
+
+function listen (port, options, fn) {
+  if ('function' === typeof options) {
+    fn = options;
+    options = {};
+  }
+
+  var server = http.createServer(function (req, res) {
+    res.writeHead(501);
+    res.end('Not Implemented');
+  });
+
+  // create engine server
+  var engine = exports.attach(server, options);
+  engine.httpServer = server;
+
+  server.listen(port, fn);
+
+  return engine;
+}
+
+/**
+ * Captures upgrade requests for a http.Server.
+ *
+ * @param {http.Server} server
+ * @param {Object} options
+ * @return {Server} engine server
+ * @api public
+ */
+
+exports.attach = attach;
+
+function attach (server, options) {
+  var engine = new exports.Server(options);
+  engine.attach(server, options);
+  return engine;
+}
diff --git a/helloworld/node_modules/engine.io/lib/server.js b/helloworld/node_modules/engine.io/lib/server.js
new file mode 100755
index 0000000..df4058e
--- /dev/null
+++ b/helloworld/node_modules/engine.io/lib/server.js
@@ -0,0 +1,574 @@
+
+/**
+ * Module dependencies.
+ */
+
+var qs = require('querystring');
+var parse = require('url').parse;
+var base64id = require('base64id');
+var transports = require('./transports');
+var EventEmitter = require('events').EventEmitter;
+var Socket = require('./socket');
+var util = require('util');
+var debug = require('debug')('engine');
+var cookieMod = require('cookie');
+
+/**
+ * Module exports.
+ */
+
+module.exports = Server;
+
+/**
+ * Server constructor.
+ *
+ * @param {Object} options
+ * @api public
+ */
+
+function Server (opts) {
+  if (!(this instanceof Server)) {
+    return new Server(opts);
+  }
+
+  this.clients = {};
+  this.clientsCount = 0;
+
+  opts = opts || {};
+
+  this.wsEngine = opts.wsEngine || process.env.EIO_WS_ENGINE || 'ws';
+  this.pingTimeout = opts.pingTimeout || 5000;
+  this.pingInterval = opts.pingInterval || 25000;
+  this.upgradeTimeout = opts.upgradeTimeout || 10000;
+  this.maxHttpBufferSize = opts.maxHttpBufferSize || 10E7;
+  this.transports = opts.transports || Object.keys(transports);
+  this.allowUpgrades = false !== opts.allowUpgrades;
+  this.allowRequest = opts.allowRequest;
+  this.cookie = false !== opts.cookie ? (opts.cookie || 'io') : false;
+  this.cookiePath = false !== opts.cookiePath ? (opts.cookiePath || '/') : false;
+  this.cookieHttpOnly = false !== opts.cookieHttpOnly;
+  this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || true) : false;
+  this.httpCompression = false !== opts.httpCompression ? (opts.httpCompression || {}) : false;
+  this.initialPacket = opts.initialPacket;
+
+  var self = this;
+
+  // initialize compression options
+  ['perMessageDeflate', 'httpCompression'].forEach(function (type) {
+    var compression = self[type];
+    if (true === compression) self[type] = compression = {};
+    if (compression && null == compression.threshold) {
+      compression.threshold = 1024;
+    }
+  });
+
+  this.init();
+}
+
+/**
+ * Protocol errors mappings.
+ */
+
+Server.errors = {
+  UNKNOWN_TRANSPORT: 0,
+  UNKNOWN_SID: 1,
+  BAD_HANDSHAKE_METHOD: 2,
+  BAD_REQUEST: 3,
+  FORBIDDEN: 4
+};
+
+Server.errorMessages = {
+  0: 'Transport unknown',
+  1: 'Session ID unknown',
+  2: 'Bad handshake method',
+  3: 'Bad request',
+  4: 'Forbidden'
+};
+
+/**
+ * Inherits from EventEmitter.
+ */
+
+util.inherits(Server, EventEmitter);
+
+/**
+ * Initialize websocket server
+ *
+ * @api private
+ */
+
+Server.prototype.init = function () {
+  if (!~this.transports.indexOf('websocket')) return;
+
+  if (this.ws) this.ws.close();
+
+  var wsModule;
+  switch (this.wsEngine) {
+    case 'uws': wsModule = require('uws'); break;
+    case 'ws': wsModule = require('ws'); break;
+    default: throw new Error('unknown wsEngine');
+  }
+  this.ws = new wsModule.Server({
+    noServer: true,
+    clientTracking: false,
+    perMessageDeflate: this.perMessageDeflate,
+    maxPayload: this.maxHttpBufferSize
+  });
+};
+
+/**
+ * Returns a list of available transports for upgrade given a certain transport.
+ *
+ * @return {Array}
+ * @api public
+ */
+
+Server.prototype.upgrades = function (transport) {
+  if (!this.allowUpgrades) return [];
+  return transports[transport].upgradesTo || [];
+};
+
+/**
+ * Verifies a request.
+ *
+ * @param {http.IncomingMessage}
+ * @return {Boolean} whether the request is valid
+ * @api private
+ */
+
+Server.prototype.verify = function (req, upgrade, fn) {
+  // transport check
+  var transport = req._query.transport;
+  if (!~this.transports.indexOf(transport)) {
+    debug('unknown transport "%s"', transport);
+    return fn(Server.errors.UNKNOWN_TRANSPORT, false);
+  }
+
+  // 'Origin' header check
+  var isOriginInvalid = checkInvalidHeaderChar(req.headers.origin);
+  if (isOriginInvalid) {
+    req.headers.origin = null;
+    return fn(Server.errors.BAD_REQUEST, false);
+  }
+
+  // sid check
+  var sid = req._query.sid;
+  if (sid) {
+    if (!this.clients.hasOwnProperty(sid)) {
+      return fn(Server.errors.UNKNOWN_SID, false);
+    }
+    if (!upgrade && this.clients[sid].transport.name !== transport) {
+      debug('bad request: unexpected transport without upgrade');
+      return fn(Server.errors.BAD_REQUEST, false);
+    }
+  } else {
+    // handshake is GET only
+    if ('GET' !== req.method) return fn(Server.errors.BAD_HANDSHAKE_METHOD, false);
+    if (!this.allowRequest) return fn(null, true);
+    return this.allowRequest(req, fn);
+  }
+
+  fn(null, true);
+};
+
+/**
+ * Prepares a request by processing the query string.
+ *
+ * @api private
+ */
+
+Server.prototype.prepare = function (req) {
+  // try to leverage pre-existing `req._query` (e.g: from connect)
+  if (!req._query) {
+    req._query = ~req.url.indexOf('?') ? qs.parse(parse(req.url).query) : {};
+  }
+};
+
+/**
+ * Closes all clients.
+ *
+ * @api public
+ */
+
+Server.prototype.close = function () {
+  debug('closing all open clients');
+  for (var i in this.clients) {
+    if (this.clients.hasOwnProperty(i)) {
+      this.clients[i].close(true);
+    }
+  }
+  if (this.ws) {
+    debug('closing webSocketServer');
+    this.ws.close();
+    // don't delete this.ws because it can be used again if the http server starts listening again
+  }
+  return this;
+};
+
+/**
+ * Handles an Engine.IO HTTP request.
+ *
+ * @param {http.IncomingMessage} request
+ * @param {http.ServerResponse|http.OutgoingMessage} response
+ * @api public
+ */
+
+Server.prototype.handleRequest = function (req, res) {
+  debug('handling "%s" http request "%s"', req.method, req.url);
+  this.prepare(req);
+  req.res = res;
+
+  var self = this;
+  this.verify(req, false, function (err, success) {
+    if (!success) {
+      sendErrorMessage(req, res, err);
+      return;
+    }
+
+    if (req._query.sid) {
+      debug('setting new request for existing client');
+      self.clients[req._query.sid].transport.onRequest(req);
+    } else {
+      self.handshake(req._query.transport, req);
+    }
+  });
+};
+
+/**
+ * Sends an Engine.IO Error Message
+ *
+ * @param {http.ServerResponse} response
+ * @param {code} error code
+ * @api private
+ */
+
+function sendErrorMessage (req, res, code) {
+  var headers = { 'Content-Type': 'application/json' };
+
+  var isForbidden = !Server.errorMessages.hasOwnProperty(code);
+  if (isForbidden) {
+    res.writeHead(403, headers);
+    res.end(JSON.stringify({
+      code: Server.errors.FORBIDDEN,
+      message: code || Server.errorMessages[Server.errors.FORBIDDEN]
+    }));
+    return;
+  }
+  if (req.headers.origin) {
+    headers['Access-Control-Allow-Credentials'] = 'true';
+    headers['Access-Control-Allow-Origin'] = req.headers.origin;
+  } else {
+    headers['Access-Control-Allow-Origin'] = '*';
+  }
+  if (res !== undefined) {
+    res.writeHead(400, headers);
+    res.end(JSON.stringify({
+      code: code,
+      message: Server.errorMessages[code]
+    }));
+  }
+}
+
+/**
+ * generate a socket id.
+ * Overwrite this method to generate your custom socket id
+ *
+ * @param {Object} request object
+ * @api public
+ */
+
+Server.prototype.generateId = function (req) {
+  return base64id.generateId();
+};
+
+/**
+ * Handshakes a new client.
+ *
+ * @param {String} transport name
+ * @param {Object} request object
+ * @api private
+ */
+
+Server.prototype.handshake = function (transportName, req) {
+  var id = this.generateId(req);
+
+  debug('handshaking client "%s"', id);
+
+  try {
+    var transport = new transports[transportName](req);
+    if ('polling' === transportName) {
+      transport.maxHttpBufferSize = this.maxHttpBufferSize;
+      transport.httpCompression = this.httpCompression;
+    } else if ('websocket' === transportName) {
+      transport.perMessageDeflate = this.perMessageDeflate;
+    }
+
+    if (req._query && req._query.b64) {
+      transport.supportsBinary = false;
+    } else {
+      transport.supportsBinary = true;
+    }
+  } catch (e) {
+    sendErrorMessage(req, req.res, Server.errors.BAD_REQUEST);
+    return;
+  }
+  var socket = new Socket(id, this, transport, req);
+  var self = this;
+
+  if (false !== this.cookie) {
+    transport.on('headers', function (headers) {
+      headers['Set-Cookie'] = cookieMod.serialize(self.cookie, id,
+        {
+          path: self.cookiePath,
+          httpOnly: self.cookiePath ? self.cookieHttpOnly : false
+        });
+    });
+  }
+
+  transport.onRequest(req);
+
+  this.clients[id] = socket;
+  this.clientsCount++;
+
+  socket.once('close', function () {
+    delete self.clients[id];
+    self.clientsCount--;
+  });
+
+  this.emit('connection', socket);
+};
+
+/**
+ * Handles an Engine.IO HTTP Upgrade.
+ *
+ * @api public
+ */
+
+Server.prototype.handleUpgrade = function (req, socket, upgradeHead) {
+  this.prepare(req);
+
+  var self = this;
+  this.verify(req, true, function (err, success) {
+    if (!success) {
+      abortConnection(socket, err);
+      return;
+    }
+
+    var head = Buffer.from(upgradeHead); // eslint-disable-line node/no-deprecated-api
+    upgradeHead = null;
+
+    // delegate to ws
+    self.ws.handleUpgrade(req, socket, head, function (conn) {
+      self.onWebSocket(req, conn);
+    });
+  });
+};
+
+/**
+ * Called upon a ws.io connection.
+ *
+ * @param {ws.Socket} websocket
+ * @api private
+ */
+
+Server.prototype.onWebSocket = function (req, socket) {
+  socket.on('error', onUpgradeError);
+
+  if (transports[req._query.transport] !== undefined && !transports[req._query.transport].prototype.handlesUpgrades) {
+    debug('transport doesnt handle upgraded requests');
+    socket.close();
+    return;
+  }
+
+  // get client id
+  var id = req._query.sid;
+
+  // keep a reference to the ws.Socket
+  req.websocket = socket;
+
+  if (id) {
+    var client = this.clients[id];
+    if (!client) {
+      debug('upgrade attempt for closed client');
+      socket.close();
+    } else if (client.upgrading) {
+      debug('transport has already been trying to upgrade');
+      socket.close();
+    } else if (client.upgraded) {
+      debug('transport had already been upgraded');
+      socket.close();
+    } else {
+      debug('upgrading existing transport');
+
+      // transport error handling takes over
+      socket.removeListener('error', onUpgradeError);
+
+      var transport = new transports[req._query.transport](req);
+      if (req._query && req._query.b64) {
+        transport.supportsBinary = false;
+      } else {
+        transport.supportsBinary = true;
+      }
+      transport.perMessageDeflate = this.perMessageDeflate;
+      client.maybeUpgrade(transport);
+    }
+  } else {
+    // transport error handling takes over
+    socket.removeListener('error', onUpgradeError);
+
+    this.handshake(req._query.transport, req);
+  }
+
+  function onUpgradeError () {
+    debug('websocket error before upgrade');
+    // socket.close() not needed
+  }
+};
+
+/**
+ * Captures upgrade requests for a http.Server.
+ *
+ * @param {http.Server} server
+ * @param {Object} options
+ * @api public
+ */
+
+Server.prototype.attach = function (server, options) {
+  var self = this;
+  options = options || {};
+  var path = (options.path || '/engine.io').replace(/\/$/, '');
+
+  var destroyUpgradeTimeout = options.destroyUpgradeTimeout || 1000;
+
+  // normalize path
+  path += '/';
+
+  function check (req) {
+    if ('OPTIONS' === req.method && false === options.handlePreflightRequest) {
+      return false;
+    }
+    return path === req.url.substr(0, path.length);
+  }
+
+  // cache and clean up listeners
+  var listeners = server.listeners('request').slice(0);
+  server.removeAllListeners('request');
+  server.on('close', self.close.bind(self));
+  server.on('listening', self.init.bind(self));
+
+  // add request handler
+  server.on('request', function (req, res) {
+    if (check(req)) {
+      debug('intercepting request for path "%s"', path);
+      if ('OPTIONS' === req.method && 'function' === typeof options.handlePreflightRequest) {
+        options.handlePreflightRequest.call(server, req, res);
+      } else {
+        self.handleRequest(req, res);
+      }
+    } else {
+      for (var i = 0, l = listeners.length; i < l; i++) {
+        listeners[i].call(server, req, res);
+      }
+    }
+  });
+
+  if (~self.transports.indexOf('websocket')) {
+    server.on('upgrade', function (req, socket, head) {
+      if (check(req)) {
+        self.handleUpgrade(req, socket, head);
+      } else if (false !== options.destroyUpgrade) {
+        // default node behavior is to disconnect when no handlers
+        // but by adding a handler, we prevent that
+        // and if no eio thing handles the upgrade
+        // then the socket needs to die!
+        setTimeout(function () {
+          if (socket.writable && socket.bytesWritten <= 0) {
+            return socket.end();
+          }
+        }, destroyUpgradeTimeout);
+      }
+    });
+  }
+};
+
+/**
+ * Closes the connection
+ *
+ * @param {net.Socket} socket
+ * @param {code} error code
+ * @api private
+ */
+
+function abortConnection (socket, code) {
+  if (socket.writable) {
+    var message = Server.errorMessages.hasOwnProperty(code) ? Server.errorMessages[code] : String(code || '');
+    var length = Buffer.byteLength(message);
+    socket.write(
+      'HTTP/1.1 400 Bad Request\r\n' +
+      'Connection: close\r\n' +
+      'Content-type: text/html\r\n' +
+      'Content-Length: ' + length + '\r\n' +
+      '\r\n' +
+      message
+    );
+  }
+  socket.destroy();
+}
+
+/* eslint-disable */
+
+/**
+ * From https://github.com/nodejs/node/blob/v8.4.0/lib/_http_common.js#L303-L354
+ *
+ * True if val contains an invalid field-vchar
+ *  field-value    = *( field-content / obs-fold )
+ *  field-content  = field-vchar [ 1*( SP / HTAB ) field-vchar ]
+ *  field-vchar    = VCHAR / obs-text
+ *
+ * checkInvalidHeaderChar() is currently designed to be inlinable by v8,
+ * so take care when making changes to the implementation so that the source
+ * code size does not exceed v8's default max_inlined_source_size setting.
+ **/
+var validHdrChars = [
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, // 0 - 15
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 16 - 31
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 32 - 47
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 48 - 63
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 64 - 79
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 80 - 95
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 96 - 111
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, // 112 - 127
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 128 ...
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1  // ... 255
+];
+
+function checkInvalidHeaderChar(val) {
+  val += '';
+  if (val.length < 1)
+    return false;
+  if (!validHdrChars[val.charCodeAt(0)])
+    return true;
+  if (val.length < 2)
+    return false;
+  if (!validHdrChars[val.charCodeAt(1)])
+    return true;
+  if (val.length < 3)
+    return false;
+  if (!validHdrChars[val.charCodeAt(2)])
+    return true;
+  if (val.length < 4)
+    return false;
+  if (!validHdrChars[val.charCodeAt(3)])
+    return true;
+  for (var i = 4; i < val.length; ++i) {
+    if (!validHdrChars[val.charCodeAt(i)])
+      return true;
+  }
+  return false;
+}
diff --git a/helloworld/node_modules/engine.io/lib/socket.js b/helloworld/node_modules/engine.io/lib/socket.js
new file mode 100755
index 0000000..177b25c
--- /dev/null
+++ b/helloworld/node_modules/engine.io/lib/socket.js
@@ -0,0 +1,486 @@
+/**
+ * Module dependencies.
+ */
+
+var EventEmitter = require('events').EventEmitter;
+var util = require('util');
+var debug = require('debug')('engine:socket');
+
+/**
+ * Module exports.
+ */
+
+module.exports = Socket;
+
+/**
+ * Client class (abstract).
+ *
+ * @api private
+ */
+
+function Socket (id, server, transport, req) {
+  this.id = id;
+  this.server = server;
+  this.upgrading = false;
+  this.upgraded = false;
+  this.readyState = 'opening';
+  this.writeBuffer = [];
+  this.packetsFn = [];
+  this.sentCallbackFn = [];
+  this.cleanupFn = [];
+  this.request = req;
+
+  // Cache IP since it might not be in the req later
+  if (req.websocket && req.websocket._socket) {
+    this.remoteAddress = req.websocket._socket.remoteAddress;
+  } else {
+    this.remoteAddress = req.connection.remoteAddress;
+  }
+
+  this.checkIntervalTimer = null;
+  this.upgradeTimeoutTimer = null;
+  this.pingTimeoutTimer = null;
+
+  this.setTransport(transport);
+  this.onOpen();
+}
+
+/**
+ * Inherits from EventEmitter.
+ */
+
+util.inherits(Socket, EventEmitter);
+
+/**
+ * Called upon transport considered open.
+ *
+ * @api private
+ */
+
+Socket.prototype.onOpen = function () {
+  this.readyState = 'open';
+
+  // sends an `open` packet
+  this.transport.sid = this.id;
+  this.sendPacket('open', JSON.stringify({
+    sid: this.id,
+    upgrades: this.getAvailableUpgrades(),
+    pingInterval: this.server.pingInterval,
+    pingTimeout: this.server.pingTimeout
+  }));
+
+  if (this.server.initialPacket) {
+    this.sendPacket('message', this.server.initialPacket);
+  }
+
+  this.emit('open');
+  this.setPingTimeout();
+};
+
+/**
+ * Called upon transport packet.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.onPacket = function (packet) {
+  if ('open' === this.readyState) {
+    // export packet event
+    debug('packet');
+    this.emit('packet', packet);
+
+    // Reset ping timeout on any packet, incoming data is a good sign of
+    // other side's liveness
+    this.setPingTimeout();
+
+    switch (packet.type) {
+      case 'ping':
+        debug('got ping');
+        this.sendPacket('pong');
+        this.emit('heartbeat');
+        break;
+
+      case 'error':
+        this.onClose('parse error');
+        break;
+
+      case 'message':
+        this.emit('data', packet.data);
+        this.emit('message', packet.data);
+        break;
+    }
+  } else {
+    debug('packet received with closed socket');
+  }
+};
+
+/**
+ * Called upon transport error.
+ *
+ * @param {Error} error object
+ * @api private
+ */
+
+Socket.prototype.onError = function (err) {
+  debug('transport error');
+  this.onClose('transport error', err);
+};
+
+/**
+ * Sets and resets ping timeout timer based on client pings.
+ *
+ * @api private
+ */
+
+Socket.prototype.setPingTimeout = function () {
+  var self = this;
+  clearTimeout(self.pingTimeoutTimer);
+  self.pingTimeoutTimer = setTimeout(function () {
+    self.onClose('ping timeout');
+  }, self.server.pingInterval + self.server.pingTimeout);
+};
+
+/**
+ * Attaches handlers for the given transport.
+ *
+ * @param {Transport} transport
+ * @api private
+ */
+
+Socket.prototype.setTransport = function (transport) {
+  var onError = this.onError.bind(this);
+  var onPacket = this.onPacket.bind(this);
+  var flush = this.flush.bind(this);
+  var onClose = this.onClose.bind(this, 'transport close');
+
+  this.transport = transport;
+  this.transport.once('error', onError);
+  this.transport.on('packet', onPacket);
+  this.transport.on('drain', flush);
+  this.transport.once('close', onClose);
+  // this function will manage packet events (also message callbacks)
+  this.setupSendCallback();
+
+  this.cleanupFn.push(function () {
+    transport.removeListener('error', onError);
+    transport.removeListener('packet', onPacket);
+    transport.removeListener('drain', flush);
+    transport.removeListener('close', onClose);
+  });
+};
+
+/**
+ * Upgrades socket to the given transport
+ *
+ * @param {Transport} transport
+ * @api private
+ */
+
+Socket.prototype.maybeUpgrade = function (transport) {
+  debug('might upgrade socket transport from "%s" to "%s"'
+    , this.transport.name, transport.name);
+
+  this.upgrading = true;
+
+  var self = this;
+
+  // set transport upgrade timer
+  self.upgradeTimeoutTimer = setTimeout(function () {
+    debug('client did not complete upgrade - closing transport');
+    cleanup();
+    if ('open' === transport.readyState) {
+      transport.close();
+    }
+  }, this.server.upgradeTimeout);
+
+  function onPacket (packet) {
+    if ('ping' === packet.type && 'probe' === packet.data) {
+      transport.send([{ type: 'pong', data: 'probe' }]);
+      self.emit('upgrading', transport);
+      clearInterval(self.checkIntervalTimer);
+      self.checkIntervalTimer = setInterval(check, 100);
+    } else if ('upgrade' === packet.type && self.readyState !== 'closed') {
+      debug('got upgrade packet - upgrading');
+      cleanup();
+      self.transport.discard();
+      self.upgraded = true;
+      self.clearTransport();
+      self.setTransport(transport);
+      self.emit('upgrade', transport);
+      self.setPingTimeout();
+      self.flush();
+      if (self.readyState === 'closing') {
+        transport.close(function () {
+          self.onClose('forced close');
+        });
+      }
+    } else {
+      cleanup();
+      transport.close();
+    }
+  }
+
+  // we force a polling cycle to ensure a fast upgrade
+  function check () {
+    if ('polling' === self.transport.name && self.transport.writable) {
+      debug('writing a noop packet to polling for fast upgrade');
+      self.transport.send([{ type: 'noop' }]);
+    }
+  }
+
+  function cleanup () {
+    self.upgrading = false;
+
+    clearInterval(self.checkIntervalTimer);
+    self.checkIntervalTimer = null;
+
+    clearTimeout(self.upgradeTimeoutTimer);
+    self.upgradeTimeoutTimer = null;
+
+    transport.removeListener('packet', onPacket);
+    transport.removeListener('close', onTransportClose);
+    transport.removeListener('error', onError);
+    self.removeListener('close', onClose);
+  }
+
+  function onError (err) {
+    debug('client did not complete upgrade - %s', err);
+    cleanup();
+    transport.close();
+    transport = null;
+  }
+
+  function onTransportClose () {
+    onError('transport closed');
+  }
+
+  function onClose () {
+    onError('socket closed');
+  }
+
+  transport.on('packet', onPacket);
+  transport.once('close', onTransportClose);
+  transport.once('error', onError);
+
+  self.once('close', onClose);
+};
+
+/**
+ * Clears listeners and timers associated with current transport.
+ *
+ * @api private
+ */
+
+Socket.prototype.clearTransport = function () {
+  var cleanup;
+
+  var toCleanUp = this.cleanupFn.length;
+
+  for (var i = 0; i < toCleanUp; i++) {
+    cleanup = this.cleanupFn.shift();
+    cleanup();
+  }
+
+  // silence further transport errors and prevent uncaught exceptions
+  this.transport.on('error', function () {
+    debug('error triggered by discarded transport');
+  });
+
+  // ensure transport won't stay open
+  this.transport.close();
+
+  clearTimeout(this.pingTimeoutTimer);
+};
+
+/**
+ * Called upon transport considered closed.
+ * Possible reasons: `ping timeout`, `client error`, `parse error`,
+ * `transport error`, `server close`, `transport close`
+ */
+
+Socket.prototype.onClose = function (reason, description) {
+  if ('closed' !== this.readyState) {
+    this.readyState = 'closed';
+    clearTimeout(this.pingTimeoutTimer);
+    clearInterval(this.checkIntervalTimer);
+    this.checkIntervalTimer = null;
+    clearTimeout(this.upgradeTimeoutTimer);
+    var self = this;
+    // clean writeBuffer in next tick, so developers can still
+    // grab the writeBuffer on 'close' event
+    process.nextTick(function () {
+      self.writeBuffer = [];
+    });
+    this.packetsFn = [];
+    this.sentCallbackFn = [];
+    this.clearTransport();
+    this.emit('close', reason, description);
+  }
+};
+
+/**
+ * Setup and manage send callback
+ *
+ * @api private
+ */
+
+Socket.prototype.setupSendCallback = function () {
+  var self = this;
+  this.transport.on('drain', onDrain);
+
+  this.cleanupFn.push(function () {
+    self.transport.removeListener('drain', onDrain);
+  });
+
+  // the message was sent successfully, execute the callback
+  function onDrain () {
+    if (self.sentCallbackFn.length > 0) {
+      var seqFn = self.sentCallbackFn.splice(0, 1)[0];
+      if ('function' === typeof seqFn) {
+        debug('executing send callback');
+        seqFn(self.transport);
+      } else if (Array.isArray(seqFn)) {
+        debug('executing batch send callback');
+        for (var l = seqFn.length, i = 0; i < l; i++) {
+          if ('function' === typeof seqFn[i]) {
+            seqFn[i](self.transport);
+          }
+        }
+      }
+    }
+  }
+};
+
+/**
+ * Sends a message packet.
+ *
+ * @param {String} message
+ * @param {Object} options
+ * @param {Function} callback
+ * @return {Socket} for chaining
+ * @api public
+ */
+
+Socket.prototype.send =
+Socket.prototype.write = function (data, options, callback) {
+  this.sendPacket('message', data, options, callback);
+  return this;
+};
+
+/**
+ * Sends a packet.
+ *
+ * @param {String} packet type
+ * @param {String} optional, data
+ * @param {Object} options
+ * @api private
+ */
+
+Socket.prototype.sendPacket = function (type, data, options, callback) {
+  if ('function' === typeof options) {
+    callback = options;
+    options = null;
+  }
+
+  options = options || {};
+  options.compress = false !== options.compress;
+
+  if ('closing' !== this.readyState && 'closed' !== this.readyState) {
+    debug('sending packet "%s" (%s)', type, data);
+
+    var packet = {
+      type: type,
+      options: options
+    };
+    if (data) packet.data = data;
+
+    // exports packetCreate event
+    this.emit('packetCreate', packet);
+
+    this.writeBuffer.push(packet);
+
+    // add send callback to object, if defined
+    if (callback) this.packetsFn.push(callback);
+
+    this.flush();
+  }
+};
+
+/**
+ * Attempts to flush the packets buffer.
+ *
+ * @api private
+ */
+
+Socket.prototype.flush = function () {
+  if ('closed' !== this.readyState &&
+                this.transport.writable &&
+                this.writeBuffer.length) {
+    debug('flushing buffer to transport');
+    this.emit('flush', this.writeBuffer);
+    this.server.emit('flush', this, this.writeBuffer);
+    var wbuf = this.writeBuffer;
+    this.writeBuffer = [];
+    if (!this.transport.supportsFraming) {
+      this.sentCallbackFn.push(this.packetsFn);
+    } else {
+      this.sentCallbackFn.push.apply(this.sentCallbackFn, this.packetsFn);
+    }
+    this.packetsFn = [];
+    this.transport.send(wbuf);
+    this.emit('drain');
+    this.server.emit('drain', this);
+  }
+};
+
+/**
+ * Get available upgrades for this socket.
+ *
+ * @api private
+ */
+
+Socket.prototype.getAvailableUpgrades = function () {
+  var availableUpgrades = [];
+  var allUpgrades = this.server.upgrades(this.transport.name);
+  for (var i = 0, l = allUpgrades.length; i < l; ++i) {
+    var upg = allUpgrades[i];
+    if (this.server.transports.indexOf(upg) !== -1) {
+      availableUpgrades.push(upg);
+    }
+  }
+  return availableUpgrades;
+};
+
+/**
+ * Closes the socket and underlying transport.
+ *
+ * @param {Boolean} optional, discard
+ * @return {Socket} for chaining
+ * @api public
+ */
+
+Socket.prototype.close = function (discard) {
+  if ('open' !== this.readyState) return;
+
+  this.readyState = 'closing';
+
+  if (this.writeBuffer.length) {
+    this.once('drain', this.closeTransport.bind(this, discard));
+    return;
+  }
+
+  this.closeTransport(discard);
+};
+
+/**
+ * Closes the underlying transport.
+ *
+ * @param {Boolean} discard
+ * @api private
+ */
+
+Socket.prototype.closeTransport = function (discard) {
+  if (discard) this.transport.discard();
+  this.transport.close(this.onClose.bind(this, 'forced close'));
+};
diff --git a/helloworld/node_modules/engine.io/lib/transport.js b/helloworld/node_modules/engine.io/lib/transport.js
new file mode 100755
index 0000000..933dad5
--- /dev/null
+++ b/helloworld/node_modules/engine.io/lib/transport.js
@@ -0,0 +1,128 @@
+
+/**
+ * Module dependencies.
+ */
+
+var EventEmitter = require('events').EventEmitter;
+var parser = require('engine.io-parser');
+var util = require('util');
+var debug = require('debug')('engine:transport');
+
+/**
+ * Expose the constructor.
+ */
+
+module.exports = Transport;
+
+/**
+ * Noop function.
+ *
+ * @api private
+ */
+
+function noop () {}
+
+/**
+ * Transport constructor.
+ *
+ * @param {http.IncomingMessage} request
+ * @api public
+ */
+
+function Transport (req) {
+  this.readyState = 'open';
+  this.discarded = false;
+}
+
+/**
+ * Inherits from EventEmitter.
+ */
+
+util.inherits(Transport, EventEmitter);
+
+/**
+ * Flags the transport as discarded.
+ *
+ * @api private
+ */
+
+Transport.prototype.discard = function () {
+  this.discarded = true;
+};
+
+/**
+ * Called with an incoming HTTP request.
+ *
+ * @param {http.IncomingMessage} request
+ * @api private
+ */
+
+Transport.prototype.onRequest = function (req) {
+  debug('setting request');
+  this.req = req;
+};
+
+/**
+ * Closes the transport.
+ *
+ * @api private
+ */
+
+Transport.prototype.close = function (fn) {
+  if ('closed' === this.readyState || 'closing' === this.readyState) return;
+
+  this.readyState = 'closing';
+  this.doClose(fn || noop);
+};
+
+/**
+ * Called with a transport error.
+ *
+ * @param {String} message error
+ * @param {Object} error description
+ * @api private
+ */
+
+Transport.prototype.onError = function (msg, desc) {
+  if (this.listeners('error').length) {
+    var err = new Error(msg);
+    err.type = 'TransportError';
+    err.description = desc;
+    this.emit('error', err);
+  } else {
+    debug('ignored transport error %s (%s)', msg, desc);
+  }
+};
+
+/**
+ * Called with parsed out a packets from the data stream.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Transport.prototype.onPacket = function (packet) {
+  this.emit('packet', packet);
+};
+
+/**
+ * Called with the encoded packet data.
+ *
+ * @param {String} data
+ * @api private
+ */
+
+Transport.prototype.onData = function (data) {
+  this.onPacket(parser.decodePacket(data));
+};
+
+/**
+ * Called upon transport close.
+ *
+ * @api private
+ */
+
+Transport.prototype.onClose = function () {
+  this.readyState = 'closed';
+  this.emit('close');
+};
diff --git a/helloworld/node_modules/engine.io/lib/transports/index.js b/helloworld/node_modules/engine.io/lib/transports/index.js
new file mode 100755
index 0000000..fcff322
--- /dev/null
+++ b/helloworld/node_modules/engine.io/lib/transports/index.js
@@ -0,0 +1,36 @@
+
+/**
+ * Module dependencies.
+ */
+
+var XHR = require('./polling-xhr');
+var JSONP = require('./polling-jsonp');
+
+/**
+ * Export transports.
+ */
+
+module.exports = exports = {
+  polling: polling,
+  websocket: require('./websocket')
+};
+
+/**
+ * Export upgrades map.
+ */
+
+exports.polling.upgradesTo = ['websocket'];
+
+/**
+ * Polling polymorphic constructor.
+ *
+ * @api private
+ */
+
+function polling (req) {
+  if ('string' === typeof req._query.j) {
+    return new JSONP(req);
+  } else {
+    return new XHR(req);
+  }
+}
diff --git a/helloworld/node_modules/engine.io/lib/transports/polling-jsonp.js b/helloworld/node_modules/engine.io/lib/transports/polling-jsonp.js
new file mode 100755
index 0000000..62e66e7
--- /dev/null
+++ b/helloworld/node_modules/engine.io/lib/transports/polling-jsonp.js
@@ -0,0 +1,75 @@
+
+/**
+ * Module dependencies.
+ */
+
+var Polling = require('./polling');
+var qs = require('querystring');
+var rDoubleSlashes = /\\\\n/g;
+var rSlashes = /(\\)?\\n/g;
+var util = require('util');
+
+/**
+ * Module exports.
+ */
+
+module.exports = JSONP;
+
+/**
+ * JSON-P polling transport.
+ *
+ * @api public
+ */
+
+function JSONP (req) {
+  Polling.call(this, req);
+
+  this.head = '___eio[' + (req._query.j || '').replace(/[^0-9]/g, '') + '](';
+  this.foot = ');';
+}
+
+/**
+ * Inherits from Polling.
+ */
+
+util.inherits(JSONP, Polling);
+
+/**
+ * Handles incoming data.
+ * Due to a bug in \n handling by browsers, we expect a escaped string.
+ *
+ * @api private
+ */
+
+JSONP.prototype.onData = function (data) {
+  // we leverage the qs module so that we get built-in DoS protection
+  // and the fast alternative to decodeURIComponent
+  data = qs.parse(data).d;
+  if ('string' === typeof data) {
+    // client will send already escaped newlines as \\\\n and newlines as \\n
+    // \\n must be replaced with \n and \\\\n with \\n
+    data = data.replace(rSlashes, function (match, slashes) {
+      return slashes ? match : '\n';
+    });
+    Polling.prototype.onData.call(this, data.replace(rDoubleSlashes, '\\n'));
+  }
+};
+
+/**
+ * Performs the write.
+ *
+ * @api private
+ */
+
+JSONP.prototype.doWrite = function (data, options, callback) {
+  // we must output valid javascript, not valid json
+  // see: http://timelessrepo.com/json-isnt-a-javascript-subset
+  var js = JSON.stringify(data)
+    .replace(/\u2028/g, '\\u2028')
+    .replace(/\u2029/g, '\\u2029');
+
+  // prepare response
+  data = this.head + js + this.foot;
+
+  Polling.prototype.doWrite.call(this, data, options, callback);
+};
diff --git a/helloworld/node_modules/engine.io/lib/transports/polling-xhr.js b/helloworld/node_modules/engine.io/lib/transports/polling-xhr.js
new file mode 100755
index 0000000..3562524
--- /dev/null
+++ b/helloworld/node_modules/engine.io/lib/transports/polling-xhr.js
@@ -0,0 +1,69 @@
+
+/**
+ * Module dependencies.
+ */
+
+var Polling = require('./polling');
+var util = require('util');
+
+/**
+ * Module exports.
+ */
+
+module.exports = XHR;
+
+/**
+ * Ajax polling transport.
+ *
+ * @api public
+ */
+
+function XHR (req) {
+  Polling.call(this, req);
+}
+
+/**
+ * Inherits from Polling.
+ */
+
+util.inherits(XHR, Polling);
+
+/**
+ * Overrides `onRequest` to handle `OPTIONS`..
+ *
+ * @param {http.IncomingMessage}
+ * @api private
+ */
+
+XHR.prototype.onRequest = function (req) {
+  if ('OPTIONS' === req.method) {
+    var res = req.res;
+    var headers = this.headers(req);
+    headers['Access-Control-Allow-Headers'] = 'Content-Type';
+    res.writeHead(200, headers);
+    res.end();
+  } else {
+    Polling.prototype.onRequest.call(this, req);
+  }
+};
+
+/**
+ * Returns headers for a response.
+ *
+ * @param {http.IncomingMessage} request
+ * @param {Object} extra headers
+ * @api private
+ */
+
+XHR.prototype.headers = function (req, headers) {
+  headers = headers || {};
+
+  if (req.headers.origin) {
+    headers['Access-Control-Allow-Credentials'] = 'true';
+    headers['Access-Control-Allow-Origin'] = req.headers.origin;
+  } else {
+    headers['Access-Control-Allow-Origin'] = '*';
+  }
+
+  return Polling.prototype.headers.call(this, req, headers);
+};
diff --git a/helloworld/node_modules/engine.io/lib/transports/polling.js b/helloworld/node_modules/engine.io/lib/transports/polling.js
new file mode 100755
index 0000000..7c29c29
--- /dev/null
+++ b/helloworld/node_modules/engine.io/lib/transports/polling.js
@@ -0,0 +1,407 @@
+
+/**
+ * Module requirements.
+ */
+
+var Transport = require('../transport');
+var parser = require('engine.io-parser');
+var zlib = require('zlib');
+var accepts = require('accepts');
+var util = require('util');
+var debug = require('debug')('engine:polling');
+
+var compressionMethods = {
+  gzip: zlib.createGzip,
+  deflate: zlib.createDeflate
+};
+
+/**
+ * Exports the constructor.
+ */
+
+module.exports = Polling;
+
+/**
+ * HTTP polling constructor.
+ *
+ * @api public.
+ */
+
+function Polling (req) {
+  Transport.call(this, req);
+
+  this.closeTimeout = 30 * 1000;
+  this.maxHttpBufferSize = null;
+  this.httpCompression = null;
+}
+
+/**
+ * Inherits from Transport.
+ *
+ * @api public.
+ */
+
+util.inherits(Polling, Transport);
+
+/**
+ * Transport name
+ *
+ * @api public
+ */
+
+Polling.prototype.name = 'polling';
+
+/**
+ * Overrides onRequest.
+ *
+ * @param {http.IncomingMessage}
+ * @api private
+ */
+
+Polling.prototype.onRequest = function (req) {
+  var res = req.res;
+
+  if ('GET' === req.method) {
+    this.onPollRequest(req, res);
+  } else if ('POST' === req.method) {
+    this.onDataRequest(req, res);
+  } else {
+    res.writeHead(500);
+    res.end();
+  }
+};
+
+/**
+ * The client sends a request awaiting for us to send data.
+ *
+ * @api private
+ */
+
+Polling.prototype.onPollRequest = function (req, res) {
+  if (this.req) {
+    debug('request overlap');
+    // assert: this.res, '.req and .res should be (un)set together'
+    this.onError('overlap from client');
+    res.writeHead(500);
+    res.end();
+    return;
+  }
+
+  debug('setting request');
+
+  this.req = req;
+  this.res = res;
+
+  var self = this;
+
+  function onClose () {
+    self.onError('poll connection closed prematurely');
+  }
+
+  function cleanup () {
+    req.removeListener('close', onClose);
+    self.req = self.res = null;
+  }
+
+  req.cleanup = cleanup;
+  req.on('close', onClose);
+
+  this.writable = true;
+  this.emit('drain');
+
+  // if we're still writable but had a pending close, trigger an empty send
+  if (this.writable && this.shouldClose) {
+    debug('triggering empty send to append close packet');
+    this.send([{ type: 'noop' }]);
+  }
+};
+
+/**
+ * The client sends a request with data.
+ *
+ * @api private
+ */
+
+Polling.prototype.onDataRequest = function (req, res) {
+  if (this.dataReq) {
+    // assert: this.dataRes, '.dataReq and .dataRes should be (un)set together'
+    this.onError('data request overlap from client');
+    res.writeHead(500);
+    res.end();
+    return;
+  }
+
+  var isBinary = 'application/octet-stream' === req.headers['content-type'];
+
+  this.dataReq = req;
+  this.dataRes = res;
+
+  var chunks = isBinary ? Buffer.concat([]) : '';
+  var self = this;
+
+  function cleanup () {
+    req.removeListener('data', onData);
+    req.removeListener('end', onEnd);
+    req.removeListener('close', onClose);
+    self.dataReq = self.dataRes = chunks = null;
+  }
+
+  function onClose () {
+    cleanup();
+    self.onError('data request connection closed prematurely');
+  }
+
+  function onData (data) {
+    var contentLength;
+    if (isBinary) {
+      chunks = Buffer.concat([chunks, data]);
+      contentLength = chunks.length;
+    } else {
+      chunks += data;
+      contentLength = Buffer.byteLength(chunks);
+    }
+
+    if (contentLength > self.maxHttpBufferSize) {
+      chunks = isBinary ? Buffer.concat([]) : '';
+      req.connection.destroy();
+    }
+  }
+
+  function onEnd () {
+    self.onData(chunks);
+
+    var headers = {
+      // text/html is required instead of text/plain to avoid an
+      // unwanted download dialog on certain user-agents (GH-43)
+      'Content-Type': 'text/html',
+      'Content-Length': 2
+    };
+
+    res.writeHead(200, self.headers(req, headers));
+    res.end('ok');
+    cleanup();
+  }
+
+  req.on('close', onClose);
+  if (!isBinary) req.setEncoding('utf8');
+  req.on('data', onData);
+  req.on('end', onEnd);
+};
+
+/**
+ * Processes the incoming data payload.
+ *
+ * @param {String} encoded payload
+ * @api private
+ */
+
+Polling.prototype.onData = function (data) {
+  debug('received "%s"', data);
+  var self = this;
+  var callback = function (packet) {
+    if ('close' === packet.type) {
+      debug('got xhr close packet');
+      self.onClose();
+      return false;
+    }
+
+    self.onPacket(packet);
+  };
+
+  parser.decodePayload(data, callback);
+};
+
+/**
+ * Overrides onClose.
+ *
+ * @api private
+ */
+
+Polling.prototype.onClose = function () {
+  if (this.writable) {
+    // close pending poll request
+    this.send([{ type: 'noop' }]);
+  }
+  Transport.prototype.onClose.call(this);
+};
+
+/**
+ * Writes a packet payload.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Polling.prototype.send = function (packets) {
+  this.writable = false;
+
+  if (this.shouldClose) {
+    debug('appending close packet to payload');
+    packets.push({ type: 'close' });
+    this.shouldClose();
+    this.shouldClose = null;
+  }
+
+  var self = this;
+  parser.encodePayload(packets, this.supportsBinary, function (data) {
+    var compress = packets.some(function (packet) {
+      return packet.options && packet.options.compress;
+    });
+    self.write(data, { compress: compress });
+  });
+};
+
+/**
+ * Writes data as response to poll request.
+ *
+ * @param {String} data
+ * @param {Object} options
+ * @api private
+ */
+
+Polling.prototype.write = function (data, options) {
+  debug('writing "%s"', data);
+  var self = this;
+  this.doWrite(data, options, function () {
+    self.req.cleanup();
+  });
+};
+
+/**
+ * Performs the write.
+ *
+ * @api private
+ */
+
+Polling.prototype.doWrite = function (data, options, callback) {
+  var self = this;
+
+  // explicit UTF-8 is required for pages not served under utf
+  var isString = typeof data === 'string';
+  var contentType = isString
+    ? 'text/plain; charset=UTF-8'
+    : 'application/octet-stream';
+
+  var headers = {
+    'Content-Type': contentType
+  };
+
+  if (!this.httpCompression || !options.compress) {
+    respond(data);
+    return;
+  }
+
+  var len = isString ? Buffer.byteLength(data) : data.length;
+  if (len < this.httpCompression.threshold) {
+    respond(data);
+    return;
+  }
+
+  var encoding = accepts(this.req).encodings(['gzip', 'deflate']);
+  if (!encoding) {
+    respond(data);
+    return;
+  }
+
+  this.compress(data, encoding, function (err, data) {
+    if (err) {
+      self.res.writeHead(500);
+      self.res.end();
+      callback(err);
+      return;
+    }
+
+    headers['Content-Encoding'] = encoding;
+    respond(data);
+  });
+
+  function respond (data) {
+    headers['Content-Length'] = 'string' === typeof data ? Buffer.byteLength(data) : data.length;
+    self.res.writeHead(200, self.headers(self.req, headers));
+    self.res.end(data);
+    callback();
+  }
+};
+
+/**
+ * Compresses data.
+ *
+ * @api private
+ */
+
+Polling.prototype.compress = function (data, encoding, callback) {
+  debug('compressing');
+
+  var buffers = [];
+  var nread = 0;
+
+  compressionMethods[encoding](this.httpCompression)
+    .on('error', callback)
+    .on('data', function (chunk) {
+      buffers.push(chunk);
+      nread += chunk.length;
+    })
+    .on('end', function () {
+      callback(null, Buffer.concat(buffers, nread));
+    })
+    .end(data);
+};
+
+/**
+ * Closes the transport.
+ *
+ * @api private
+ */
+
+Polling.prototype.doClose = function (fn) {
+  debug('closing');
+
+  var self = this;
+  var closeTimeoutTimer;
+
+  if (this.dataReq) {
+    debug('aborting ongoing data request');
+    this.dataReq.destroy();
+  }
+
+  if (this.writable) {
+    debug('transport writable - closing right away');
+    this.send([{ type: 'close' }]);
+    onClose();
+  } else if (this.discarded) {
+    debug('transport discarded - closing right away');
+    onClose();
+  } else {
+    debug('transport not writable - buffering orderly close');
+    this.shouldClose = onClose;
+    closeTimeoutTimer = setTimeout(onClose, this.closeTimeout);
+  }
+
+  function onClose () {
+    clearTimeout(closeTimeoutTimer);
+    fn();
+    self.onClose();
+  }
+};
+
+/**
+ * Returns headers for a response.
+ *
+ * @param {http.IncomingMessage} request
+ * @param {Object} extra headers
+ * @api private
+ */
+
+Polling.prototype.headers = function (req, headers) {
+  headers = headers || {};
+
+  // prevent XSS warnings on IE
+  // https://github.com/LearnBoost/socket.io/pull/1333
+  var ua = req.headers['user-agent'];
+  if (ua && (~ua.indexOf(';MSIE') || ~ua.indexOf('Trident/'))) {
+    headers['X-XSS-Protection'] = '0';
+  }
+
+  this.emit('headers', headers);
+  return headers;
+};
diff --git a/helloworld/node_modules/engine.io/lib/transports/websocket.js b/helloworld/node_modules/engine.io/lib/transports/websocket.js
new file mode 100755
index 0000000..7d5511b
--- /dev/null
+++ b/helloworld/node_modules/engine.io/lib/transports/websocket.js
@@ -0,0 +1,134 @@
+
+/**
+ * Module dependencies.
+ */
+
+var Transport = require('../transport');
+var parser = require('engine.io-parser');
+var util = require('util');
+var debug = require('debug')('engine:ws');
+
+/**
+ * Export the constructor.
+ */
+
+module.exports = WebSocket;
+
+/**
+ * WebSocket transport
+ *
+ * @param {http.IncomingMessage}
+ * @api public
+ */
+
+function WebSocket (req) {
+  Transport.call(this, req);
+  var self = this;
+  this.socket = req.websocket;
+  this.socket.on('message', this.onData.bind(this));
+  this.socket.once('close', this.onClose.bind(this));
+  this.socket.on('error', this.onError.bind(this));
+  this.socket.on('headers', onHeaders);
+  this.writable = true;
+  this.perMessageDeflate = null;
+
+  function onHeaders (headers) {
+    self.emit('headers', headers);
+  }
+}
+
+/**
+ * Inherits from Transport.
+ */
+
+util.inherits(WebSocket, Transport);
+
+/**
+ * Transport name
+ *
+ * @api public
+ */
+
+WebSocket.prototype.name = 'websocket';
+
+/**
+ * Advertise upgrade support.
+ *
+ * @api public
+ */
+
+WebSocket.prototype.handlesUpgrades = true;
+
+/**
+ * Advertise framing support.
+ *
+ * @api public
+ */
+
+WebSocket.prototype.supportsFraming = true;
+
+/**
+ * Processes the incoming data.
+ *
+ * @param {String} encoded packet
+ * @api private
+ */
+
+WebSocket.prototype.onData = function (data) {
+  debug('received "%s"', data);
+  Transport.prototype.onData.call(this, data);
+};
+
+/**
+ * Writes a packet payload.
+ *
+ * @param {Array} packets
+ * @api private
+ */
+
+WebSocket.prototype.send = function (packets) {
+  var self = this;
+
+  for (var i = 0; i < packets.length; i++) {
+    var packet = packets[i];
+    parser.encodePacket(packet, self.supportsBinary, send);
+  }
+
+  function send (data) {
+    debug('writing "%s"', data);
+
+    // always creates a new object since ws modifies it
+    var opts = {};
+    if (packet.options) {
+      opts.compress = packet.options.compress;
+    }
+
+    if (self.perMessageDeflate) {
+      var len = 'string' === typeof data ? Buffer.byteLength(data) : data.length;
+      if (len < self.perMessageDeflate.threshold) {
+        opts.compress = false;
+      }
+    }
+
+    self.writable = false;
+    self.socket.send(data, opts, onEnd);
+  }
+
+  function onEnd (err) {
+    if (err) return self.onError('write error', err.stack);
+    self.writable = true;
+    self.emit('drain');
+  }
+};
+
+/**
+ * Closes the transport.
+ *
+ * @api private
+ */
+
+WebSocket.prototype.doClose = function (fn) {
+  debug('closing');
+  this.socket.close();
+  fn && fn();
+};
diff --git a/helloworld/node_modules/error-ex/LICENSE b/helloworld/node_modules/error-ex/LICENSE
new file mode 100755
index 0000000..0a5f461
--- /dev/null
+++ b/helloworld/node_modules/error-ex/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 JD Ballard
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/error-ex/README.md b/helloworld/node_modules/error-ex/README.md
new file mode 100755
index 0000000..97f744a
--- /dev/null
+++ b/helloworld/node_modules/error-ex/README.md
@@ -0,0 +1,144 @@
+# node-error-ex [![Travis-CI.org Build Status](https://img.shields.io/travis/Qix-/node-error-ex.svg?style=flat-square)](https://travis-ci.org/Qix-/node-error-ex) [![Coveralls.io Coverage Rating](https://img.shields.io/coveralls/Qix-/node-error-ex.svg?style=flat-square)](https://coveralls.io/r/Qix-/node-error-ex)
+> Easily subclass and customize new Error types
+
+## Examples
+To include in your project:
+```javascript
+var errorEx = require('error-ex');
+```
+
+To create an error message type with a specific name (note, that `ErrorFn.name`
+will not reflect this):
+```javascript
+var JSONError = errorEx('JSONError');
+
+var err = new JSONError('error');
+err.name; //-> JSONError
+throw err; //-> JSONError: error
+```
+
+To add a stack line:
+```javascript
+var JSONError = errorEx('JSONError', {fileName: errorEx.line('in %s')});
+
+var err = new JSONError('error')
+err.fileName = '/a/b/c/foo.json';
+throw err; //-> (line 2)-> in /a/b/c/foo.json
+```
+
+To append to the error message:
+```javascript
+var JSONError = errorEx('JSONError', {fileName: errorEx.append('in %s')});
+
+var err = new JSONError('error');
+err.fileName = '/a/b/c/foo.json';
+throw err; //-> JSONError: error in /a/b/c/foo.json
+```
+
+## API
+
+#### `errorEx([name], [properties])`
+Creates a new ErrorEx error type
+
+- `name`: the name of the new type (appears in the error message upon throw;
+  defaults to `Error.name`)
+- `properties`: if supplied, used as a key/value dictionary of properties to
+  use when building up the stack message. Keys are property names that are
+  looked up on the error message, and then passed to function values.
+	- `line`: if specified and is a function, return value is added as a stack
+    entry (error-ex will indent for you). Passed the property value given
+    the key.
+  - `stack`: if specified and is a function, passed the value of the property
+    using the key, and the raw stack lines as a second argument. Takes no
+    return value (but the stack can be modified directly).
+  - `message`: if specified and is a function, return value is used as new
+    `.message` value upon get. Passed the property value of the property named
+    by key, and the existing message is passed as the second argument as an
+    array of lines (suitable for multi-line messages).
+
+Returns a constructor (Function) that can be used just like the regular Error
+constructor.
+
+```javascript
+var errorEx = require('error-ex');
+
+var BasicError = errorEx();
+
+var NamedError = errorEx('NamedError');
+
+// --
+
+var AdvancedError = errorEx('AdvancedError', {
+	foo: {
+		line: function (value, stack) {
+			if (value) {
+				return 'bar ' + value;
+			}
+			return null;
+		}
+	}
+}
+
+var err = new AdvancedError('hello, world');
+err.foo = 'baz';
+throw err;
+
+/*
+	AdvancedError: hello, world
+	    bar baz
+	    at tryReadme() (readme.js:20:1)
+*/
+```
+
+#### `errorEx.line(str)`
+Creates a stack line using a delimiter
+
+> This is a helper function. It is to be used in lieu of writing a value object
+> for `properties` values.
+
+- `str`: The string to create
+  - Use the delimiter `%s` to specify where in the string the value should go
+
+```javascript
+var errorEx = require('error-ex');
+
+var FileError = errorEx('FileError', {fileName: errorEx.line('in %s')});
+
+var err = new FileError('problem reading file');
+err.fileName = '/a/b/c/d/foo.js';
+throw err;
+
+/*
+	FileError: problem reading file
+	    in /a/b/c/d/foo.js
+	    at tryReadme() (readme.js:7:1)
+*/
+```
+
+#### `errorEx.append(str)`
+Appends to the `error.message` string
+
+> This is a helper function. It is to be used in lieu of writing a value object
+> for `properties` values.
+
+- `str`: The string to append
+  - Use the delimiter `%s` to specify where in the string the value should go
+
+```javascript
+var errorEx = require('error-ex');
+
+var SyntaxError = errorEx('SyntaxError', {fileName: errorEx.append('in %s')});
+
+var err = new SyntaxError('improper indentation');
+err.fileName = '/a/b/c/d/foo.js';
+throw err;
+
+/*
+	SyntaxError: improper indentation in /a/b/c/d/foo.js
+	    at tryReadme() (readme.js:7:1)
+*/
+```
+
+## License
+Licensed under the [MIT License](http://opensource.org/licenses/MIT).
+You can find a copy of it in [LICENSE](LICENSE).
diff --git a/helloworld/node_modules/error-ex/index.js b/helloworld/node_modules/error-ex/index.js
new file mode 100755
index 0000000..4fb20b4
--- /dev/null
+++ b/helloworld/node_modules/error-ex/index.js
@@ -0,0 +1,141 @@
+'use strict';
+
+var util = require('util');
+var isArrayish = require('is-arrayish');
+
+var errorEx = function errorEx(name, properties) {
+	if (!name || name.constructor !== String) {
+		properties = name || {};
+		name = Error.name;
+	}
+
+	var errorExError = function ErrorEXError(message) {
+		if (!this) {
+			return new ErrorEXError(message);
+		}
+
+		message = message instanceof Error
+			? message.message
+			: (message || this.message);
+
+		Error.call(this, message);
+		Error.captureStackTrace(this, errorExError);
+
+		this.name = name;
+
+		Object.defineProperty(this, 'message', {
+			configurable: true,
+			enumerable: false,
+			get: function () {
+				var newMessage = message.split(/\r?\n/g);
+
+				for (var key in properties) {
+					if (!properties.hasOwnProperty(key)) {
+						continue;
+					}
+
+					var modifier = properties[key];
+
+					if ('message' in modifier) {
+						newMessage = modifier.message(this[key], newMessage) || newMessage;
+						if (!isArrayish(newMessage)) {
+							newMessage = [newMessage];
+						}
+					}
+				}
+
+				return newMessage.join('\n');
+			},
+			set: function (v) {
+				message = v;
+			}
+		});
+
+		var overwrittenStack = null;
+
+		var stackDescriptor = Object.getOwnPropertyDescriptor(this, 'stack');
+		var stackGetter = stackDescriptor.get;
+		var stackValue = stackDescriptor.value;
+		delete stackDescriptor.value;
+		delete stackDescriptor.writable;
+
+		stackDescriptor.set = function (newstack) {
+			overwrittenStack = newstack;
+		};
+
+		stackDescriptor.get = function () {
+			var stack = (overwrittenStack || ((stackGetter)
+				? stackGetter.call(this)
+				: stackValue)).split(/\r?\n+/g);
+
+			// starting in Node 7, the stack builder caches the message.
+			// just replace it.
+			if (!overwrittenStack) {
+				stack[0] = this.name + ': ' + this.message;
+			}
+
+			var lineCount = 1;
+			for (var key in properties) {
+				if (!properties.hasOwnProperty(key)) {
+					continue;
+				}
+
+				var modifier = properties[key];
+
+				if ('line' in modifier) {
+					var line = modifier.line(this[key]);
+					if (line) {
+						stack.splice(lineCount++, 0, '    ' + line);
+					}
+				}
+
+				if ('stack' in modifier) {
+					modifier.stack(this[key], stack);
+				}
+			}
+
+			return stack.join('\n');
+		};
+
+		Object.defineProperty(this, 'stack', stackDescriptor);
+	};
+
+	if (Object.setPrototypeOf) {
+		Object.setPrototypeOf(errorExError.prototype, Error.prototype);
+		Object.setPrototypeOf(errorExError, Error);
+	} else {
+		util.inherits(errorExError, Error);
+	}
+
+	return errorExError;
+};
+
+errorEx.append = function (str, def) {
+	return {
+		message: function (v, message) {
+			v = v || def;
+
+			if (v) {
+				message[0] += ' ' + str.replace('%s', v.toString());
+			}
+
+			return message;
+		}
+	};
+};
+
+errorEx.line = function (str, def) {
+	return {
+		line: function (v) {
+			v = v || def;
+
+			if (v) {
+				return str.replace('%s', v.toString());
+			}
+
+			return null;
+		}
+	};
+};
+
+module.exports = errorEx;
diff --git a/helloworld/node_modules/find-up/index.js b/helloworld/node_modules/find-up/index.js
new file mode 100755
index 0000000..7ff0e2b
--- /dev/null
+++ b/helloworld/node_modules/find-up/index.js
@@ -0,0 +1,53 @@
+'use strict';
+var path = require('path');
+var pathExists = require('path-exists');
+var Promise = require('pinkie-promise');
+
+function splitPath(x) {
+	return path.resolve(x || '').split(path.sep);
+}
+
+function join(parts, filename) {
+	return path.resolve(parts.join(path.sep) + path.sep, filename);
+}
+
+module.exports = function (filename, opts) {
+	opts = opts || {};
+
+	var parts = splitPath(opts.cwd);
+
+	return new Promise(function (resolve) {
+		(function find() {
+			var fp = join(parts, filename);
+
+			pathExists(fp).then(function (exists) {
+				if (exists) {
+					resolve(fp);
+				} else if (parts.pop()) {
+					find();
+				} else {
+					resolve(null);
+				}
+			});
+		})();
+	});
+};
+
+module.exports.sync = function (filename, opts) {
+	opts = opts || {};
+
+	var parts = splitPath(opts.cwd);
+	var len = parts.length;
+
+	while (len--) {
+		var fp = join(parts, filename);
+
+		if (pathExists.sync(fp)) {
+			return fp;
+		}
+
+		parts.pop();
+	}
+
+	return null;
+};
diff --git a/helloworld/node_modules/find-up/license b/helloworld/node_modules/find-up/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/find-up/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/find-up/readme.md b/helloworld/node_modules/find-up/readme.md
new file mode 100755
index 0000000..9ea0611
--- /dev/null
+++ b/helloworld/node_modules/find-up/readme.md
@@ -0,0 +1,72 @@
+# find-up [![Build Status](https://travis-ci.org/sindresorhus/find-up.svg?branch=master)](https://travis-ci.org/sindresorhus/find-up)
+
+> Find a file by walking up parent directories
+
+
+## Install
+
+```
+$ npm install --save find-up
+```
+
+
+## Usage
+
+```
+/
+└── Users
+    └── sindresorhus
+        ├── unicorn.png
+        └── foo
+            └── bar
+                ├── baz
+                └── example.js
+```
+
+```js
+// example.js
+const findUp = require('find-up');
+
+findUp('unicorn.png').then(filepath => {
+	console.log(filepath);
+	//=> '/Users/sindresorhus/unicorn.png'
+});
+```
+
+
+## API
+
+### findUp(filename, [options])
+
+Returns a promise for the filepath or `null`.
+
+### findUp.sync(filename, [options])
+
+Returns a filepath or `null`.
+
+#### filename
+
+Type: `string`
+
+Filename of the file to find.
+
+#### options
+
+##### cwd
+
+Type: `string`  
+Default: `process.cwd()`
+
+Directory to start from.
+
+
+## Related
+
+- [find-up-cli](https://github.com/sindresorhus/find-up-cli) - CLI for this module
+- [pkg-up](https://github.com/sindresorhus/pkg-up) - Find the closest package.json file
+- [pkg-dir](https://github.com/sindresorhus/pkg-dir) - Find the root directory of an npm package
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/follow-redirects/LICENSE b/helloworld/node_modules/follow-redirects/LICENSE
new file mode 100755
index 0000000..742cbad
--- /dev/null
+++ b/helloworld/node_modules/follow-redirects/LICENSE
@@ -0,0 +1,18 @@
+Copyright 2014–present Olivier Lalonde <olalonde@gmail.com>, James Talmage <james@talmage.io>, Ruben Verborgh
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/follow-redirects/README.md b/helloworld/node_modules/follow-redirects/README.md
new file mode 100755
index 0000000..91e1220
--- /dev/null
+++ b/helloworld/node_modules/follow-redirects/README.md
@@ -0,0 +1,139 @@
+## Follow Redirects
+
+Drop-in replacement for Nodes `http` and `https` that automatically follows redirects.
+
+[![npm version](https://img.shields.io/npm/v/follow-redirects.svg)](https://www.npmjs.com/package/follow-redirects)
+[![Build Status](https://travis-ci.org/follow-redirects/follow-redirects.svg?branch=master)](https://travis-ci.org/follow-redirects/follow-redirects)
+[![Coverage Status](https://coveralls.io/repos/follow-redirects/follow-redirects/badge.svg?branch=master)](https://coveralls.io/r/follow-redirects/follow-redirects?branch=master)
+[![Dependency Status](https://david-dm.org/follow-redirects/follow-redirects.svg)](https://david-dm.org/follow-redirects/follow-redirects)
+[![npm downloads](https://img.shields.io/npm/dm/follow-redirects.svg)](https://www.npmjs.com/package/follow-redirects)
+
+`follow-redirects` provides [request](https://nodejs.org/api/http.html#http_http_request_options_callback) and [get](https://nodejs.org/api/http.html#http_http_get_options_callback)
+ methods that behave identically to those found on the native [http](https://nodejs.org/api/http.html#http_http_request_options_callback) and [https](https://nodejs.org/api/https.html#https_https_request_options_callback)
+ modules, with the exception that they will seamlessly follow redirects.
+
+```javascript
+var http = require('follow-redirects').http;
+var https = require('follow-redirects').https;
+
+http.get('http://bit.ly/900913', function (response) {
+  response.on('data', function (chunk) {
+    console.log(chunk);
+  });
+}).on('error', function (err) {
+  console.error(err);
+});
+```
+
+You can inspect the final redirected URL through the `responseUrl` property on the `response`.
+If no redirection happened, `responseUrl` is the original request URL.
+
+```javascript
+https.request({
+  host: 'bitly.com',
+  path: '/UHfDGO',
+}, function (response) {
+  console.log(response.responseUrl);
+  // 'http://duckduckgo.com/robots.txt'
+});
+```
+
+## Options
+### Global options
+Global options are set directly on the `follow-redirects` module:
+
+```javascript
+var followRedirects = require('follow-redirects');
+followRedirects.maxRedirects = 10;
+followRedirects.maxBodyLength = 20 * 1024 * 1024; // 20 MB
+```
+
+The following global options are supported:
+
+- `maxRedirects` (default: `21`) – sets the maximum number of allowed redirects; if exceeded, an error will be emitted.
+
+- `maxBodyLength` (default: 10MB) – sets the maximum size of the request body; if exceeded, an error will be emitted.
+
+
+### Per-request options
+Per-request options are set by passing an `options` object:
+
+```javascript
+var url = require('url');
+var followRedirects = require('follow-redirects');
+
+var options = url.parse('http://bit.ly/900913');
+options.maxRedirects = 10;
+http.request(options);
+```
+
+In addition to the [standard HTTP](https://nodejs.org/api/http.html#http_http_request_options_callback) and [HTTPS options](https://nodejs.org/api/https.html#https_https_request_options_callback),
+the following per-request options are supported:
+- `followRedirects` (default: `true`) – whether redirects should be followed.
+
+- `maxRedirects` (default: `21`) – sets the maximum number of allowed redirects; if exceeded, an error will be emitted.
+
+- `maxBodyLength` (default: 10MB) – sets the maximum size of the request body; if exceeded, an error will be emitted.
+
+- `agents` (default: `undefined`) – sets the `agent` option per protocol, since HTTP and HTTPS use different agents. Example value: `{ http: new http.Agent(), https: new https.Agent() }`
+
+- `trackRedirects` (default: `false`) – whether to store the redirected response details into the `redirects` array on the response object.
+
+
+### Advanced usage
+By default, `follow-redirects` will use the Node.js default implementations
+of [`http`](https://nodejs.org/api/http.html)
+and [`https`](https://nodejs.org/api/https.html).
+To enable features such as caching and/or intermediate request tracking,
+you might instead want to wrap `follow-redirects` around custom protocol implementations:
+
+```javascript
+var followRedirects = require('follow-redirects').wrap({
+  http: require('your-custom-http'),
+  https: require('your-custom-https'),
+});
+```
+
+Such custom protocols only need an implementation of the `request` method.
+
+## Browser Usage
+
+Due to the way the browser works,
+the `http` and `https` browser equivalents perform redirects by default.
+
+By requiring `follow-redirects` this way:
+```javascript
+var http = require('follow-redirects/http');
+var https = require('follow-redirects/https');
+```
+you can easily tell webpack and friends to replace
+`follow-redirect` by the built-in versions:
+
+```json
+{
+  "follow-redirects/http"  : "http",
+  "follow-redirects/https" : "https"
+}
+```
+
+## Contributing
+
+Pull Requests are always welcome. Please [file an issue](https://github.com/follow-redirects/follow-redirects/issues)
+ detailing your proposal before you invest your valuable time. Additional features and bug fixes should be accompanied
+ by tests. You can run the test suite locally with a simple `npm test` command.
+
+## Debug Logging
+
+`follow-redirects` uses the excellent [debug](https://www.npmjs.com/package/debug) for logging. To turn on logging
+ set the environment variable `DEBUG=follow-redirects` for debug output from just this module. When running the test
+ suite it is sometimes advantageous to set `DEBUG=*` to see output from the express server as well.
+
+## Authors
+
+- Olivier Lalonde (olalonde@gmail.com)
+- James Talmage (james@talmage.io)
+- [Ruben Verborgh](https://ruben.verborgh.org/)
+
+## License
+
+[MIT License](https://github.com/follow-redirects/follow-redirects/blob/master/LICENSE)
diff --git a/helloworld/node_modules/follow-redirects/http.js b/helloworld/node_modules/follow-redirects/http.js
new file mode 100755
index 0000000..695e356
--- /dev/null
+++ b/helloworld/node_modules/follow-redirects/http.js
@@ -0,0 +1 @@
+module.exports = require("./").http;
diff --git a/helloworld/node_modules/follow-redirects/https.js b/helloworld/node_modules/follow-redirects/https.js
new file mode 100755
index 0000000..d21c921
--- /dev/null
+++ b/helloworld/node_modules/follow-redirects/https.js
@@ -0,0 +1 @@
+module.exports = require("./").https;
diff --git a/helloworld/node_modules/follow-redirects/index.js b/helloworld/node_modules/follow-redirects/index.js
new file mode 100755
index 0000000..da33ef0
--- /dev/null
+++ b/helloworld/node_modules/follow-redirects/index.js
@@ -0,0 +1,434 @@
+var url = require("url");
+var URL = url.URL;
+var http = require("http");
+var https = require("https");
+var assert = require("assert");
+var Writable = require("stream").Writable;
+var debug = require("debug")("follow-redirects");
+
+// RFC7231§4.2.1: Of the request methods defined by this specification,
+// the GET, HEAD, OPTIONS, and TRACE methods are defined to be safe.
+var SAFE_METHODS = { GET: true, HEAD: true, OPTIONS: true, TRACE: true };
+
+// Create handlers that pass events from native requests
+var eventHandlers = Object.create(null);
+["abort", "aborted", "error", "socket", "timeout"].forEach(function (event) {
+  eventHandlers[event] = function (arg) {
+    this._redirectable.emit(event, arg);
+  };
+});
+
+// An HTTP(S) request that can be redirected
+function RedirectableRequest(options, responseCallback) {
+  // Initialize the request
+  Writable.call(this);
+  options.headers = options.headers || {};
+  this._options = options;
+  this._ended = false;
+  this._ending = false;
+  this._redirectCount = 0;
+  this._redirects = [];
+  this._requestBodyLength = 0;
+  this._requestBodyBuffers = [];
+
+  // Since http.request treats host as an alias of hostname,
+  // but the url module interprets host as hostname plus port,
+  // eliminate the host property to avoid confusion.
+  if (options.host) {
+    // Use hostname if set, because it has precedence
+    if (!options.hostname) {
+      options.hostname = options.host;
+    }
+    delete options.host;
+  }
+
+  // Attach a callback if passed
+  if (responseCallback) {
+    this.on("response", responseCallback);
+  }
+
+  // React to responses of native requests
+  var self = this;
+  this._onNativeResponse = function (response) {
+    self._processResponse(response);
+  };
+
+  // Complete the URL object when necessary
+  if (!options.pathname && options.path) {
+    var searchPos = options.path.indexOf("?");
+    if (searchPos < 0) {
+      options.pathname = options.path;
+    }
+    else {
+      options.pathname = options.path.substring(0, searchPos);
+      options.search = options.path.substring(searchPos);
+    }
+  }
+
+  // Perform the first request
+  this._performRequest();
+}
+RedirectableRequest.prototype = Object.create(Writable.prototype);
+
+// Writes buffered data to the current native request
+RedirectableRequest.prototype.write = function (data, encoding, callback) {
+  // Writing is not allowed if end has been called
+  if (this._ending) {
+    throw new Error("write after end");
+  }
+
+  // Validate input and shift parameters if necessary
+  if (!(typeof data === "string" || typeof data === "object" && ("length" in data))) {
+    throw new Error("data should be a string, Buffer or Uint8Array");
+  }
+  if (typeof encoding === "function") {
+    callback = encoding;
+    encoding = null;
+  }
+
+  // Ignore empty buffers, since writing them doesn't invoke the callback
+  // https://github.com/nodejs/node/issues/22066
+  if (data.length === 0) {
+    if (callback) {
+      callback();
+    }
+    return;
+  }
+  // Only write when we don't exceed the maximum body length
+  if (this._requestBodyLength + data.length <= this._options.maxBodyLength) {
+    this._requestBodyLength += data.length;
+    this._requestBodyBuffers.push({ data: data, encoding: encoding });
+    this._currentRequest.write(data, encoding, callback);
+  }
+  // Error when we exceed the maximum body length
+  else {
+    this.emit("error", new Error("Request body larger than maxBodyLength limit"));
+    this.abort();
+  }
+};
+
+// Ends the current native request
+RedirectableRequest.prototype.end = function (data, encoding, callback) {
+  // Shift parameters if necessary
+  if (typeof data === "function") {
+    callback = data;
+    data = encoding = null;
+  }
+  else if (typeof encoding === "function") {
+    callback = encoding;
+    encoding = null;
+  }
+
+  // Write data if needed and end
+  if (!data) {
+    this._ended = this._ending = true;
+    this._currentRequest.end(null, null, callback);
+  }
+  else {
+    var self = this;
+    var currentRequest = this._currentRequest;
+    this.write(data, encoding, function () {
+      self._ended = true;
+      currentRequest.end(null, null, callback);
+    });
+    this._ending = true;
+  }
+};
+
+// Sets a header value on the current native request
+RedirectableRequest.prototype.setHeader = function (name, value) {
+  this._options.headers[name] = value;
+  this._currentRequest.setHeader(name, value);
+};
+
+// Clears a header value on the current native request
+RedirectableRequest.prototype.removeHeader = function (name) {
+  delete this._options.headers[name];
+  this._currentRequest.removeHeader(name);
+};
+
+// Global timeout for all underlying requests
+RedirectableRequest.prototype.setTimeout = function (msecs, callback) {
+  if (callback) {
+    this.once("timeout", callback);
+  }
+
+  if (this.socket) {
+    startTimer(this, msecs);
+  }
+  else {
+    var self = this;
+    this._currentRequest.once("socket", function () {
+      startTimer(self, msecs);
+    });
+  }
+
+  this.once("response", clearTimer);
+  this.once("error", clearTimer);
+
+  return this;
+};
+
+function startTimer(request, msecs) {
+  clearTimeout(request._timeout);
+  request._timeout = setTimeout(function () {
+    request.emit("timeout");
+  }, msecs);
+}
+
+function clearTimer() {
+  clearTimeout(this._timeout);
+}
+
+// Proxy all other public ClientRequest methods
+[
+  "abort", "flushHeaders", "getHeader",
+  "setNoDelay", "setSocketKeepAlive",
+].forEach(function (method) {
+  RedirectableRequest.prototype[method] = function (a, b) {
+    return this._currentRequest[method](a, b);
+  };
+});
+
+// Proxy all public ClientRequest properties
+["aborted", "connection", "socket"].forEach(function (property) {
+  Object.defineProperty(RedirectableRequest.prototype, property, {
+    get: function () { return this._currentRequest[property]; },
+  });
+});
+
+// Executes the next native request (initial or redirect)
+RedirectableRequest.prototype._performRequest = function () {
+  // Load the native protocol
+  var protocol = this._options.protocol;
+  var nativeProtocol = this._options.nativeProtocols[protocol];
+  if (!nativeProtocol) {
+    this.emit("error", new Error("Unsupported protocol " + protocol));
+    return;
+  }
+
+  // If specified, use the agent corresponding to the protocol
+  // (HTTP and HTTPS use different types of agents)
+  if (this._options.agents) {
+    var scheme = protocol.substr(0, protocol.length - 1);
+    this._options.agent = this._options.agents[scheme];
+  }
+
+  // Create the native request
+  var request = this._currentRequest =
+        nativeProtocol.request(this._options, this._onNativeResponse);
+  this._currentUrl = url.format(this._options);
+
+  // Set up event handlers
+  request._redirectable = this;
+  for (var event in eventHandlers) {
+    /* istanbul ignore else */
+    if (event) {
+      request.on(event, eventHandlers[event]);
+    }
+  }
+
+  // End a redirected request
+  // (The first request must be ended explicitly with RedirectableRequest#end)
+  if (this._isRedirect) {
+    // Write the request entity and end.
+    var i = 0;
+    var self = this;
+    var buffers = this._requestBodyBuffers;
+    (function writeNext(error) {
+      // Only write if this request has not been redirected yet
+      /* istanbul ignore else */
+      if (request === self._currentRequest) {
+        // Report any write errors
+        /* istanbul ignore if */
+        if (error) {
+          self.emit("error", error);
+        }
+        // Write the next buffer if there are still left
+        else if (i < buffers.length) {
+          var buffer = buffers[i++];
+          /* istanbul ignore else */
+          if (!request.finished) {
+            request.write(buffer.data, buffer.encoding, writeNext);
+          }
+        }
+        // End the request if `end` has been called on us
+        else if (self._ended) {
+          request.end();
+        }
+      }
+    }());
+  }
+};
+
+// Processes a response from the current native request
+RedirectableRequest.prototype._processResponse = function (response) {
+  // Store the redirected response
+  if (this._options.trackRedirects) {
+    this._redirects.push({
+      url: this._currentUrl,
+      headers: response.headers,
+      statusCode: response.statusCode,
+    });
+  }
+
+  // RFC7231§6.4: The 3xx (Redirection) class of status code indicates
+  // that further action needs to be taken by the user agent in order to
+  // fulfill the request. If a Location header field is provided,
+  // the user agent MAY automatically redirect its request to the URI
+  // referenced by the Location field value,
+  // even if the specific status code is not understood.
+  var location = response.headers.location;
+  if (location && this._options.followRedirects !== false &&
+      response.statusCode >= 300 && response.statusCode < 400) {
+    // Abort the current request
+    this._currentRequest.removeAllListeners();
+    this._currentRequest.on("error", noop);
+    this._currentRequest.abort();
+
+    // RFC7231§6.4: A client SHOULD detect and intervene
+    // in cyclical redirections (i.e., "infinite" redirection loops).
+    if (++this._redirectCount > this._options.maxRedirects) {
+      this.emit("error", new Error("Max redirects exceeded."));
+      return;
+    }
+
+    // RFC7231§6.4: Automatic redirection needs to done with
+    // care for methods not known to be safe […],
+    // since the user might not wish to redirect an unsafe request.
+    // RFC7231§6.4.7: The 307 (Temporary Redirect) status code indicates
+    // that the target resource resides temporarily under a different URI
+    // and the user agent MUST NOT change the request method
+    // if it performs an automatic redirection to that URI.
+    var header;
+    var headers = this._options.headers;
+    if (response.statusCode !== 307 && !(this._options.method in SAFE_METHODS)) {
+      this._options.method = "GET";
+      // Drop a possible entity and headers related to it
+      this._requestBodyBuffers = [];
+      for (header in headers) {
+        if (/^content-/i.test(header)) {
+          delete headers[header];
+        }
+      }
+    }
+
+    // Drop the Host header, as the redirect might lead to a different host
+    if (!this._isRedirect) {
+      for (header in headers) {
+        if (/^host$/i.test(header)) {
+          delete headers[header];
+        }
+      }
+    }
+
+    // Perform the redirected request
+    var redirectUrl = url.resolve(this._currentUrl, location);
+    debug("redirecting to", redirectUrl);
+    Object.assign(this._options, url.parse(redirectUrl));
+    this._isRedirect = true;
+    this._performRequest();
+
+    // Discard the remainder of the response to avoid waiting for data
+    response.destroy();
+  }
+  else {
+    // The response is not a redirect; return it as-is
+    response.responseUrl = this._currentUrl;
+    response.redirects = this._redirects;
+    this.emit("response", response);
+
+    // Clean up
+    this._requestBodyBuffers = [];
+  }
+};
+
+// Wraps the key/value object of protocols with redirect functionality
+function wrap(protocols) {
+  // Default settings
+  var exports = {
+    maxRedirects: 21,
+    maxBodyLength: 10 * 1024 * 1024,
+  };
+
+  // Wrap each protocol
+  var nativeProtocols = {};
+  Object.keys(protocols).forEach(function (scheme) {
+    var protocol = scheme + ":";
+    var nativeProtocol = nativeProtocols[protocol] = protocols[scheme];
+    var wrappedProtocol = exports[scheme] = Object.create(nativeProtocol);
+
+    // Executes a request, following redirects
+    wrappedProtocol.request = function (input, options, callback) {
+      // Parse parameters
+      if (typeof input === "string") {
+        var urlStr = input;
+        try {
+          input = urlToOptions(new URL(urlStr));
+        }
+        catch (err) {
+          /* istanbul ignore next */
+          input = url.parse(urlStr);
+        }
+      }
+      else if (URL && (input instanceof URL)) {
+        input = urlToOptions(input);
+      }
+      else {
+        callback = options;
+        options = input;
+        input = { protocol: protocol };
+      }
+      if (typeof options === "function") {
+        callback = options;
+        options = null;
+      }
+
+      // Set defaults
+      options = Object.assign({
+        maxRedirects: exports.maxRedirects,
+        maxBodyLength: exports.maxBodyLength,
+      }, input, options);
+      options.nativeProtocols = nativeProtocols;
+
+      assert.equal(options.protocol, protocol, "protocol mismatch");
+      debug("options", options);
+      return new RedirectableRequest(options, callback);
+    };
+
+    // Executes a GET request, following redirects
+    wrappedProtocol.get = function (input, options, callback) {
+      var request = wrappedProtocol.request(input, options, callback);
+      request.end();
+      return request;
+    };
+  });
+  return exports;
+}
+
+/* istanbul ignore next */
+function noop() { /* empty */ }
+
+// from https://github.com/nodejs/node/blob/master/lib/internal/url.js
+function urlToOptions(urlObject) {
+  var options = {
+    protocol: urlObject.protocol,
+    hostname: urlObject.hostname.startsWith("[") ?
+      /* istanbul ignore next */
+      urlObject.hostname.slice(1, -1) :
+      urlObject.hostname,
+    hash: urlObject.hash,
+    search: urlObject.search,
+    pathname: urlObject.pathname,
+    path: urlObject.pathname + urlObject.search,
+    href: urlObject.href,
+  };
+  if (urlObject.port !== "") {
+    options.port = Number(urlObject.port);
+  }
+  return options;
+}
+
+// Exports
+module.exports = wrap({ http: http, https: https });
+module.exports.wrap = wrap;
diff --git a/helloworld/node_modules/get-caller-file/LICENSE.md b/helloworld/node_modules/get-caller-file/LICENSE.md
new file mode 100755
index 0000000..bf3e1c0
--- /dev/null
+++ b/helloworld/node_modules/get-caller-file/LICENSE.md
@@ -0,0 +1,6 @@
+ISC License (ISC)
+Copyright 2018 Stefan Penner
+
+Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/helloworld/node_modules/get-caller-file/README.md b/helloworld/node_modules/get-caller-file/README.md
new file mode 100755
index 0000000..1944927
--- /dev/null
+++ b/helloworld/node_modules/get-caller-file/README.md
@@ -0,0 +1,4 @@
+# get-caller-file
+
+[![Build Status](https://travis-ci.org/stefanpenner/get-caller-file.svg?branch=master)](https://travis-ci.org/stefanpenner/get-caller-file)
+[![Build status](https://ci.appveyor.com/api/projects/status/ol2q94g1932cy14a/branch/master?svg=true)](https://ci.appveyor.com/project/embercli/get-caller-file/branch/master)
diff --git a/helloworld/node_modules/get-caller-file/index.js b/helloworld/node_modules/get-caller-file/index.js
new file mode 100755
index 0000000..03e7dfc
--- /dev/null
+++ b/helloworld/node_modules/get-caller-file/index.js
@@ -0,0 +1,20 @@
+'use strict';
+
+// Call this function in a another function to find out the file from
+// which that function was called from. (Inspects the v8 stack trace)
+//
+// Inspired by http://stackoverflow.com/questions/13227489
+
+module.exports = function getCallerFile(_position) {
+  var oldPrepareStackTrace = Error.prepareStackTrace;
+  Error.prepareStackTrace = function(err, stack) { return stack; };
+  var stack = new Error().stack;
+  Error.prepareStackTrace = oldPrepareStackTrace;
+
+  var position = _position ? _position : 2;
+
+  // stack[0] holds this file
+  // stack[1] holds where this function was called
+  // stack[2] holds the file we're interested in
+  return stack[position] ? stack[position].getFileName() : undefined;
+};
diff --git a/helloworld/node_modules/get-stream/buffer-stream.js b/helloworld/node_modules/get-stream/buffer-stream.js
new file mode 100755
index 0000000..4121c8e
--- /dev/null
+++ b/helloworld/node_modules/get-stream/buffer-stream.js
@@ -0,0 +1,51 @@
+'use strict';
+const {PassThrough} = require('stream');
+
+module.exports = options => {
+	options = Object.assign({}, options);
+
+	const {array} = options;
+	let {encoding} = options;
+	const buffer = encoding === 'buffer';
+	let objectMode = false;
+
+	if (array) {
+		objectMode = !(encoding || buffer);
+	} else {
+		encoding = encoding || 'utf8';
+	}
+
+	if (buffer) {
+		encoding = null;
+	}
+
+	let len = 0;
+	const ret = [];
+	const stream = new PassThrough({objectMode});
+
+	if (encoding) {
+		stream.setEncoding(encoding);
+	}
+
+	stream.on('data', chunk => {
+		ret.push(chunk);
+
+		if (objectMode) {
+			len = ret.length;
+		} else {
+			len += chunk.length;
+		}
+	});
+
+	stream.getBufferedValue = () => {
+		if (array) {
+			return ret;
+		}
+
+		return buffer ? Buffer.concat(ret, len) : ret.join('');
+	};
+
+	stream.getBufferedLength = () => len;
+
+	return stream;
+};
diff --git a/helloworld/node_modules/get-stream/index.js b/helloworld/node_modules/get-stream/index.js
new file mode 100755
index 0000000..7e5584a
--- /dev/null
+++ b/helloworld/node_modules/get-stream/index.js
@@ -0,0 +1,50 @@
+'use strict';
+const pump = require('pump');
+const bufferStream = require('./buffer-stream');
+
+class MaxBufferError extends Error {
+	constructor() {
+		super('maxBuffer exceeded');
+		this.name = 'MaxBufferError';
+	}
+}
+
+function getStream(inputStream, options) {
+	if (!inputStream) {
+		return Promise.reject(new Error('Expected a stream'));
+	}
+
+	options = Object.assign({maxBuffer: Infinity}, options);
+
+	const {maxBuffer} = options;
+
+	let stream;
+	return new Promise((resolve, reject) => {
+		const rejectPromise = error => {
+			if (error) { // A null check
+				error.bufferedData = stream.getBufferedValue();
+			}
+			reject(error);
+		};
+
+		stream = pump(inputStream, bufferStream(options), error => {
+			if (error) {
+				rejectPromise(error);
+				return;
+			}
+
+			resolve();
+		});
+
+		stream.on('data', () => {
+			if (stream.getBufferedLength() > maxBuffer) {
+				rejectPromise(new MaxBufferError());
+			}
+		});
+	}).then(() => stream.getBufferedValue());
+}
+
+module.exports = getStream;
+module.exports.buffer = (stream, options) => getStream(stream, Object.assign({}, options, {encoding: 'buffer'}));
+module.exports.array = (stream, options) => getStream(stream, Object.assign({}, options, {array: true}));
+module.exports.MaxBufferError = MaxBufferError;
diff --git a/helloworld/node_modules/get-stream/license b/helloworld/node_modules/get-stream/license
new file mode 100755
index 0000000..e7af2f7
--- /dev/null
+++ b/helloworld/node_modules/get-stream/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/get-stream/readme.md b/helloworld/node_modules/get-stream/readme.md
new file mode 100755
index 0000000..b87a4d3
--- /dev/null
+++ b/helloworld/node_modules/get-stream/readme.md
@@ -0,0 +1,123 @@
+# get-stream [![Build Status](https://travis-ci.org/sindresorhus/get-stream.svg?branch=master)](https://travis-ci.org/sindresorhus/get-stream)
+
+> Get a stream as a string, buffer, or array
+
+
+## Install
+
+```
+$ npm install get-stream
+```
+
+
+## Usage
+
+```js
+const fs = require('fs');
+const getStream = require('get-stream');
+
+(async () => {
+	const stream = fs.createReadStream('unicorn.txt');
+
+	console.log(await getStream(stream));
+	/*
+	              ,,))))))));,
+	           __)))))))))))))),
+	\|/       -\(((((''''((((((((.
+	-*-==//////((''  .     `)))))),
+	/|\      ))| o    ;-.    '(((((                                  ,(,
+	         ( `|    /  )    ;))))'                               ,_))^;(~
+	            |   |   |   ,))((((_     _____------~~~-.        %,;(;(>';'~
+	            o_);   ;    )))(((` ~---~  `::           \      %%~~)(v;(`('~
+	                  ;    ''''````         `:       `:::|\,__,%%    );`'; ~
+	                 |   _                )     /      `:|`----'     `-'
+	           ______/\/~    |                 /        /
+	         /~;;.____/;;'  /          ___--,-(   `;;;/
+	        / //  _;______;'------~~~~~    /;;/\    /
+	       //  | |                        / ;   \;;,\
+	      (<_  | ;                      /',/-----'  _>
+	       \_| ||_                     //~;~~~~~~~~~
+	           `\_|                   (,~~
+	                                   \~\
+	                                    ~~
+	*/
+})();
+```
+
+
+## API
+
+The methods returns a promise that resolves when the `end` event fires on the stream, indicating that there is no more data to be read. The stream is switched to flowing mode.
+
+### getStream(stream, [options])
+
+Get the `stream` as a string.
+
+#### options
+
+Type: `Object`
+
+##### encoding
+
+Type: `string`<br>
+Default: `utf8`
+
+[Encoding](https://nodejs.org/api/buffer.html#buffer_buffer) of the incoming stream.
+
+##### maxBuffer
+
+Type: `number`<br>
+Default: `Infinity`
+
+Maximum length of the returned string. If it exceeds this value before the stream ends, the promise will be rejected with a `getStream.MaxBufferError` error.
+
+### getStream.buffer(stream, [options])
+
+Get the `stream` as a buffer.
+
+It honors the `maxBuffer` option as above, but it refers to byte length rather than string length.
+
+### getStream.array(stream, [options])
+
+Get the `stream` as an array of values.
+
+It honors both the `maxBuffer` and `encoding` options. The behavior changes slightly based on the encoding chosen:
+
+- When `encoding` is unset, it assumes an [object mode stream](https://nodesource.com/blog/understanding-object-streams/) and collects values emitted from `stream` unmodified. In this case `maxBuffer` refers to the number of items in the array (not the sum of their sizes).
+
+- When `encoding` is set to `buffer`, it collects an array of buffers. `maxBuffer` refers to the summed byte lengths of every buffer in the array.
+
+- When `encoding` is set to anything else, it collects an array of strings. `maxBuffer` refers to the summed character lengths of every string in the array.
+
+
+## Errors
+
+If the input stream emits an `error` event, the promise will be rejected with the error. The buffered data will be attached to the `bufferedData` property of the error.
+
+```js
+(async () => {
+	try {
+		await getStream(streamThatErrorsAtTheEnd('unicorn'));
+	} catch (error) {
+		console.log(error.bufferedData);
+		//=> 'unicorn'
+	}
+})()
+```
+
+
+## FAQ
+
+### How is this different from [`concat-stream`](https://github.com/maxogden/concat-stream)?
+
+This module accepts a stream instead of being one and returns a promise instead of using a callback. The API is simpler and it only supports returning a string, buffer, or array. It doesn't have a fragile type inference. You explicitly choose what you want. And it doesn't depend on the huge `readable-stream` package.
+
+
+## Related
+
+- [get-stdin](https://github.com/sindresorhus/get-stdin) - Get stdin as a string or buffer
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/helloworld/node_modules/got/license b/helloworld/node_modules/got/license
new file mode 100755
index 0000000..e7af2f7
--- /dev/null
+++ b/helloworld/node_modules/got/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/got/readme.md b/helloworld/node_modules/got/readme.md
new file mode 100755
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--- /dev/null
+++ b/helloworld/node_modules/got/readme.md
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+<div align="center">
+	<br>
+	<br>
+	<img width="360" src="media/logo.svg" alt="Got">
+	<br>
+	<br>
+	<br>
+	<p align="center">Huge thanks to <a href="https://moxy.studio"><img src="https://sindresorhus.com/assets/thanks/moxy-logo.svg" width="150"></a> for sponsoring me!
+	</p>
+	<br>
+	<br>
+</div>
+
+> Simplified HTTP requests
+
+[![Build Status: Linux](https://travis-ci.org/sindresorhus/got.svg?branch=master)](https://travis-ci.org/sindresorhus/got) [![Coverage Status](https://coveralls.io/repos/github/sindresorhus/got/badge.svg?branch=master)](https://coveralls.io/github/sindresorhus/got?branch=master) [![Downloads](https://img.shields.io/npm/dm/got.svg)](https://npmjs.com/got) [![Install size](https://packagephobia.now.sh/badge?p=got)](https://packagephobia.now.sh/result?p=got)
+
+Got is a human-friendly and powerful HTTP request library.
+
+It was created because the popular [`request`](https://github.com/request/request) package is bloated: [![Install size](https://packagephobia.now.sh/badge?p=request)](https://packagephobia.now.sh/result?p=request)
+
+Got is for Node.js. For browsers, we recommend [Ky](https://github.com/sindresorhus/ky).
+
+
+## Highlights
+
+- [Promise & stream API](#api)
+- [Request cancelation](#aborting-the-request)
+- [RFC compliant caching](#cache-adapters)
+- [Follows redirects](#followredirect)
+- [Retries on failure](#retry)
+- [Progress events](#onuploadprogress-progress)
+- [Handles gzip/deflate](#decompress)
+- [Timeout handling](#timeout)
+- [Errors with metadata](#errors)
+- [JSON mode](#json)
+- [WHATWG URL support](#url)
+- [Hooks](#hooks)
+- [Instances with custom defaults](#instances)
+- [Composable](advanced-creation.md#merging-instances)
+- [Electron support](#useelectronnet)
+- [Used by ~2000 packages and ~500K repos](https://github.com/sindresorhus/got/network/dependents)
+- Actively maintained
+
+[Moving from Request?](migration-guides.md)
+
+[See how Got compares to other HTTP libraries](#comparison)
+
+## Install
+
+```
+$ npm install got
+```
+
+<a href="https://www.patreon.com/sindresorhus">
+	<img src="https://c5.patreon.com/external/logo/become_a_patron_button@2x.png" width="160">
+</a>
+
+
+## Usage
+
+```js
+const got = require('got');
+
+(async () => {
+	try {
+		const response = await got('sindresorhus.com');
+		console.log(response.body);
+		//=> '<!doctype html> ...'
+	} catch (error) {
+		console.log(error.response.body);
+		//=> 'Internal server error ...'
+	}
+})();
+```
+
+###### Streams
+
+```js
+const fs = require('fs');
+const got = require('got');
+
+got.stream('sindresorhus.com').pipe(fs.createWriteStream('index.html'));
+
+// For POST, PUT, and PATCH methods `got.stream` returns a `stream.Writable`
+fs.createReadStream('index.html').pipe(got.stream.post('sindresorhus.com'));
+```
+
+
+### API
+
+It's a `GET` request by default, but can be changed by using different methods or in the `options`.
+
+#### got(url, [options])
+
+Returns a Promise for a [`response` object](#response) or a [stream](#streams-1) if `options.stream` is set to true.
+
+##### url
+
+Type: `string` `Object`
+
+The URL to request, as a string, a [`https.request` options object](https://nodejs.org/api/https.html#https_https_request_options_callback), or a [WHATWG `URL`](https://nodejs.org/api/url.html#url_class_url).
+
+Properties from `options` will override properties in the parsed `url`.
+
+If no protocol is specified, it will default to `https`.
+
+##### options
+
+Type: `Object`
+
+Any of the [`https.request`](https://nodejs.org/api/https.html#https_https_request_options_callback) options.
+
+###### baseUrl
+
+Type: `string` `Object`
+
+When specified, `url` will be prepended by `baseUrl`.<br>
+If you specify an absolute URL, it will skip the `baseUrl`.
+
+Very useful when used with `got.extend()` to create niche-specific Got instances.
+
+Can be a string or a [WHATWG `URL`](https://nodejs.org/api/url.html#url_class_url).
+
+Slash at the end of `baseUrl` and at the beginning of the `url` argument is optional:
+
+```js
+await got('hello', {baseUrl: 'https://example.com/v1'});
+//=> 'https://example.com/v1/hello'
+
+await got('/hello', {baseUrl: 'https://example.com/v1/'});
+//=> 'https://example.com/v1/hello'
+
+await got('/hello', {baseUrl: 'https://example.com/v1'});
+//=> 'https://example.com/v1/hello'
+```
+
+###### headers
+
+Type: `Object`<br>
+Default: `{}`
+
+Request headers.
+
+Existing headers will be overwritten. Headers set to `null` will be omitted.
+
+###### stream
+
+Type: `boolean`<br>
+Default: `false`
+
+Returns a `Stream` instead of a `Promise`. This is equivalent to calling `got.stream(url, [options])`.
+
+###### body
+
+Type: `string` `Buffer` `stream.Readable` [`form-data` instance](https://github.com/form-data/form-data)
+
+**Note:** If you provide this option, `got.stream()` will be read-only.
+
+The body that will be sent with a `POST` request.
+
+If present in `options` and `options.method` is not set, `options.method` will be set to `POST`.
+
+The `content-length` header will be automatically set if `body` is a `string` / `Buffer` / `fs.createReadStream` instance / [`form-data` instance](https://github.com/form-data/form-data), and `content-length` and `transfer-encoding` are not manually set in `options.headers`.
+
+###### cookieJar
+
+Type: [`tough.CookieJar` instance](https://github.com/salesforce/tough-cookie#cookiejar)
+
+**Note:** If you provide this option, `options.headers.cookie` will be overridden.
+
+Cookie support. You don't have to care about parsing or how to store them. [Example.](#cookies)
+
+###### encoding
+
+Type: `string` `null`<br>
+Default: `'utf8'`
+
+[Encoding](https://nodejs.org/api/buffer.html#buffer_buffers_and_character_encodings) to be used on `setEncoding` of the response data. If `null`, the body is returned as a [`Buffer`](https://nodejs.org/api/buffer.html) (binary data).
+
+###### form
+
+Type: `boolean`<br>
+Default: `false`
+
+**Note:** If you provide this option, `got.stream()` will be read-only.
+**Note:** `body` must be a plain object. It will be converted to a query string using [`(new URLSearchParams(object)).toString()`](https://nodejs.org/api/url.html#url_constructor_new_urlsearchparams_obj).
+
+If set to `true` and `Content-Type` header is not set, it will be set to `application/x-www-form-urlencoded`.
+
+###### json
+
+Type: `boolean`<br>
+Default: `false`
+
+**Note:** If you use `got.stream()`, this option will be ignored.
+**Note:** `body` must be a plain object or array and will be stringified.
+
+If set to `true` and `Content-Type` header is not set, it will be set to `application/json`.
+
+Parse response body with `JSON.parse` and set `accept` header to `application/json`. If used in conjunction with the `form` option, the `body` will the stringified as querystring and the response parsed as JSON.
+
+###### query
+
+Type: `string` `Object<string, string|number>` [`URLSearchParams`](https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams)
+
+Query string that will be added to the request URL. This will override the query string in `url`.
+
+If you need to pass in an array, you can do it using a `URLSearchParams` instance:
+
+```js
+const got = require('got');
+
+const query = new URLSearchParams([['key', 'a'], ['key', 'b']]);
+
+got('https://example.com', {query});
+
+console.log(query.toString());
+//=> 'key=a&key=b'
+```
+
+And if you need a different array format, you could use the [`query-string`](https://github.com/sindresorhus/query-string) package:
+
+```js
+const got = require('got');
+const queryString = require('query-string');
+
+const query = queryString.stringify({key: ['a', 'b']}, {arrayFormat: 'bracket'});
+
+got('https://example.com', {query});
+
+console.log(query);
+//=> 'key[]=a&key[]=b'
+```
+
+###### timeout
+
+Type: `number` `Object`
+
+Milliseconds to wait for the server to end the response before aborting the request with [`got.TimeoutError`](#gottimeouterror) error (a.k.a. `request` property). By default, there's no timeout.
+
+This also accepts an `object` with the following fields to constrain the duration of each phase of the request lifecycle:
+
+- `lookup` starts when a socket is assigned and ends when the hostname has been resolved. Does not apply when using a Unix domain socket.
+- `connect` starts when `lookup` completes (or when the socket is assigned if lookup does not apply to the request) and ends when the socket is connected.
+- `secureConnect` starts when `connect` completes and ends when the handshaking process completes (HTTPS only).
+- `socket` starts when the socket is connected. See [request.setTimeout](https://nodejs.org/api/http.html#http_request_settimeout_timeout_callback).
+- `response` starts when the request has been written to the socket and ends when the response headers are received.
+- `send` starts when the socket is connected and ends with the request has been written to the socket.
+- `request` starts when the request is initiated and ends when the response's end event fires.
+
+###### retry
+
+Type: `number` `Object`<br>
+Default:
+- retries: `2`
+- methods: `GET` `PUT` `HEAD` `DELETE` `OPTIONS` `TRACE`
+- statusCodes: [`408`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/408) [`413`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/413) [`429`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/429) [`500`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/500) [`502`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/502) [`503`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/503) [`504`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/504)
+- maxRetryAfter: `undefined`
+- errorCodes: `ETIMEDOUT` `ECONNRESET` `EADDRINUSE` `ECONNREFUSED` `EPIPE` `ENOTFOUND` `ENETUNREACH` `EAI_AGAIN`
+
+An object representing `retries`, `methods`, `statusCodes`, `maxRetryAfter` and `errorCodes` fields for the time until retry, allowed methods, allowed status codes, maximum [`Retry-After`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Retry-After) time and allowed error codes.
+
+If `maxRetryAfter` is set to `undefined`, it will use `options.timeout`.<br>
+If [`Retry-After`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Retry-After) header is greater than `maxRetryAfter`, it will cancel the request.
+
+Delays between retries counts with function `1000 * Math.pow(2, retry) + Math.random() * 100`, where `retry` is attempt number (starts from 1).
+
+The `retries` property can be a `number` or a `function` with `retry` and `error` arguments. The function must return a delay in milliseconds (`0` return value cancels retry).
+
+By default, it retries *only* on the specified methods, status codes, and on these network errors:
+- `ETIMEDOUT`: One of the [timeout](#timeout) limits were reached.
+- `ECONNRESET`: Connection was forcibly closed by a peer.
+- `EADDRINUSE`: Could not bind to any free port.
+- `ECONNREFUSED`: Connection was refused by the server.
+- `EPIPE`: The remote side of the stream being written has been closed.
+- `ENOTFOUND`: Couldn't resolve the hostname to an IP address.
+- `ENETUNREACH`: No internet connection.
+- `EAI_AGAIN`: DNS lookup timed out.
+
+###### followRedirect
+
+Type: `boolean`<br>
+Default: `true`
+
+Defines if redirect responses should be followed automatically.
+
+Note that if a `303` is sent by the server in response to any request type (`POST`, `DELETE`, etc.), Got will automatically request the resource pointed to in the location header via `GET`. This is in accordance with [the spec](https://tools.ietf.org/html/rfc7231#section-6.4.4).
+
+###### decompress
+
+Type: `boolean`<br>
+Default: `true`
+
+Decompress the response automatically. This will set the `accept-encoding` header to `gzip, deflate` unless you set it yourself.
+
+If this is disabled, a compressed response is returned as a `Buffer`. This may be useful if you want to handle decompression yourself or stream the raw compressed data.
+
+###### cache
+
+Type: `Object`<br>
+Default: `false`
+
+[Cache adapter instance](#cache-adapters) for storing cached data.
+
+###### request
+
+Type: `Function`<br>
+Default: `http.request` `https.request` *(depending on the protocol)*
+
+Custom request function. The main purpose of this is to [support HTTP2 using a wrapper](#experimental-http2-support).
+
+###### useElectronNet
+
+Type: `boolean`<br>
+Default: `false`
+
+When used in Electron, Got will use [`electron.net`](https://electronjs.org/docs/api/net/) instead of the Node.js `http` module. According to the Electron docs, it should be fully compatible, but it's not entirely. See [#443](https://github.com/sindresorhus/got/issues/443) and [#461](https://github.com/sindresorhus/got/issues/461).
+
+###### throwHttpErrors
+
+Type: `boolean`<br>
+Default: `true`
+
+Determines if a `got.HTTPError` is thrown for error responses (non-2xx status codes).
+
+If this is disabled, requests that encounter an error status code will be resolved with the `response` instead of throwing. This may be useful if you are checking for resource availability and are expecting error responses.
+
+###### agent
+
+Same as the [`agent` option](https://nodejs.org/api/http.html#http_http_request_url_options_callback) for `http.request`, but with an extra feature:
+
+If you require different agents for different protocols, you can pass a map of agents to the `agent` option. This is necessary because a request to one protocol might redirect to another. In such a scenario, Got will switch over to the right protocol agent for you.
+
+```js
+const got = require('got');
+const HttpAgent = require('agentkeepalive');
+const {HttpsAgent} = HttpAgent;
+
+got('sindresorhus.com', {
+	agent: {
+		http: new HttpAgent(),
+		https: new HttpsAgent()
+	}
+});
+```
+
+###### hooks
+
+Type: `Object<string, Function[]>`
+
+Hooks allow modifications during the request lifecycle. Hook functions may be async and are run serially.
+
+###### hooks.init
+
+Type: `Function[]`<br>
+Default: `[]`
+
+Called with plain [request options](#options), right before their normalization. This is especially useful in conjunction with [`got.extend()`](#instances) and [`got.create()`](advanced-creation.md) when the input needs custom handling.
+
+See the [Request migration guide](migration-guides.md#breaking-changes) for an example.
+
+**Note**: This hook must be synchronous!
+
+###### hooks.beforeRequest
+
+Type: `Function[]`<br>
+Default: `[]`
+
+Called with [normalized](source/normalize-arguments.js) [request options](#options). Got will make no further changes to the request before it is sent. This is especially useful in conjunction with [`got.extend()`](#instances) and [`got.create()`](advanced-creation.md) when you want to create an API client that, for example, uses HMAC-signing.
+
+See the [AWS section](#aws) for an example.
+
+**Note:** If you modify the `body` you will need to modify the `content-length` header too, because it has already been computed and assigned.
+
+###### hooks.beforeRedirect
+
+Type: `Function[]`<br>
+Default: `[]`
+
+Called with [normalized](source/normalize-arguments.js) [request options](#options). Got will make no further changes to the request. This is especially useful when you want to avoid dead sites. Example:
+
+```js
+const got = require('got');
+
+got('example.com', {
+	hooks: {
+		beforeRedirect: [
+			options => {
+				if (options.hostname === 'deadSite') {
+					options.hostname = 'fallbackSite';
+				}
+			}
+		]
+	}
+});
+```
+
+###### hooks.beforeRetry
+
+Type: `Function[]`<br>
+Default: `[]`
+
+Called with [normalized](source/normalize-arguments.js) [request options](#options), the error and the retry count. Got will make no further changes to the request. This is especially useful when some extra work is required before the next try. Example:
+
+```js
+const got = require('got');
+
+got('example.com', {
+	hooks: {
+		beforeRetry: [
+			(options, error, retryCount) => {
+				if (error.statusCode === 413) { // Payload too large
+					options.body = getNewBody();
+				}
+			}
+		]
+	}
+});
+```
+
+###### hooks.afterResponse
+
+Type: `Function[]`<br>
+Default: `[]`
+
+Called with [response object](#response) and a retry function.
+
+Each function should return the response. This is especially useful when you want to refresh an access token. Example:
+
+```js
+const got = require('got');
+
+const instance = got.extend({
+	hooks: {
+		afterResponse: [
+			(response, retryWithMergedOptions) => {
+				if (response.statusCode === 401) { // Unauthorized
+					const updatedOptions = {
+						headers: {
+							token: getNewToken() // Refresh the access token
+						}
+					};
+
+					// Save for further requests
+					instance.defaults.options = got.mergeOptions(instance.defaults.options, updatedOptions);
+
+					// Make a new retry
+					return retryWithMergedOptions(updatedOptions);
+				}
+
+				// No changes otherwise
+				return response;
+			}
+		]
+	},
+	mutableDefaults: true
+});
+```
+
+###### hooks.beforeError
+
+Type: `Function[]`<br>
+Default: `[]`
+
+Called with an `Error` instance. The error is passed to the hook right before it's thrown. This is especially useful when you want to have more detailed errors.
+
+**Note**: Errors thrown while normalizing input options are thrown directly and not part of this hook.
+
+```js	
+const got = require('got');	
+
+got('api.github.com/some-endpoint', {	
+	hooks: {	
+		onError: [	
+			error => {	
+				const {response} = error;	
+ 				if (response && response.body) {	
+					error.name = 'GitHubError';	
+					error.message = `${response.body.message} (${error.statusCode})`;	
+				}
+
+ 				return error;	
+			}	
+		]	
+	}	
+});	
+```
+
+#### Response
+
+The response object will typically be a [Node.js HTTP response stream](https://nodejs.org/api/http.html#http_class_http_incomingmessage), however, if returned from the cache it will be a [response-like object](https://github.com/lukechilds/responselike) which behaves in the same way.
+
+##### request
+
+Type: `Object`
+
+**Note:** This is not a [http.ClientRequest](https://nodejs.org/api/http.html#http_class_http_clientrequest).
+
+- `gotOptions` - The options that were set on this request.
+
+##### body
+
+Type: `string` `Object` *(depending on `options.json`)*
+
+The result of the request.
+
+##### url
+
+Type: `string`
+
+The request URL or the final URL after redirects.
+
+##### requestUrl
+
+Type: `string`
+
+The original request URL.
+
+##### timings
+
+Type: `Object`
+
+The object contains the following properties:
+
+- `start` - Time when the request started.
+- `socket` - Time when a socket was assigned to the request.
+- `lookup` - Time when the DNS lookup finished.
+- `connect` - Time when the socket successfully connected.
+- `upload` - Time when the request finished uploading.
+- `response` - Time when the request fired the `response` event.
+- `end` - Time when the response fired the `end` event.
+- `error` - Time when the request fired the `error` event.
+- `phases`
+	- `wait` - `timings.socket - timings.start`
+	- `dns` - `timings.lookup - timings.socket`
+	- `tcp` - `timings.connect - timings.lookup`
+	- `request` - `timings.upload - timings.connect`
+	- `firstByte` - `timings.response - timings.upload`
+	- `download` - `timings.end - timings.response`
+	- `total` - `timings.end - timings.start` or `timings.error - timings.start`
+
+**Note:** The time is a `number` representing the milliseconds elapsed since the UNIX epoch.
+
+##### fromCache
+
+Type: `boolean`
+
+Whether the response was retrieved from the cache.
+
+##### redirectUrls
+
+Type: `Array`
+
+The redirect URLs.
+
+##### retryCount
+
+Type: `number`
+
+The number of times the request was retried.
+
+#### Streams
+
+**Note:** Progress events, redirect events and request/response events can also be used with promises.
+
+#### got.stream(url, [options])
+
+Sets `options.stream` to `true`.
+
+Returns a [duplex stream](https://nodejs.org/api/stream.html#stream_class_stream_duplex) with additional events:
+
+##### .on('request', request)
+
+`request` event to get the request object of the request.
+
+**Tip:** You can use `request` event to abort request:
+
+```js
+got.stream('github.com')
+	.on('request', request => setTimeout(() => request.abort(), 50));
+```
+
+##### .on('response', response)
+
+The `response` event to get the response object of the final request.
+
+##### .on('redirect', response, nextOptions)
+
+The `redirect` event to get the response object of a redirect. The second argument is options for the next request to the redirect location.
+
+##### .on('uploadProgress', progress)
+##### .on('downloadProgress', progress)
+
+Progress events for uploading (sending a request) and downloading (receiving a response). The `progress` argument is an object like:
+
+```js
+{
+	percent: 0.1,
+	transferred: 1024,
+	total: 10240
+}
+```
+
+If it's not possible to retrieve the body size (can happen when streaming), `total` will be `null`.
+
+```js
+(async () => {
+	const response = await got('sindresorhus.com')
+		.on('downloadProgress', progress => {
+			// Report download progress
+		})
+		.on('uploadProgress', progress => {
+			// Report upload progress
+		});
+
+	console.log(response);
+})();
+```
+
+##### .on('error', error, body, response)
+
+The `error` event emitted in case of a protocol error (like `ENOTFOUND` etc.) or status error (4xx or 5xx). The second argument is the body of the server response in case of status error. The third argument is a response object.
+
+#### got.get(url, [options])
+#### got.post(url, [options])
+#### got.put(url, [options])
+#### got.patch(url, [options])
+#### got.head(url, [options])
+#### got.delete(url, [options])
+
+Sets `options.method` to the method name and makes a request.
+
+### Instances
+
+#### got.extend([options])
+
+Configure a new `got` instance with default `options`. The `options` are merged with the parent instance's `defaults.options` using [`got.mergeOptions`](#gotmergeoptionsparentoptions-newoptions). You can access the resolved options with the `.defaults` property on the instance.
+
+```js
+const client = got.extend({
+	baseUrl: 'https://example.com',
+	headers: {
+		'x-unicorn': 'rainbow'
+	}
+});
+
+client.get('/demo');
+
+/* HTTP Request =>
+ * GET /demo HTTP/1.1
+ * Host: example.com
+ * x-unicorn: rainbow
+ */
+```
+
+```js
+(async () => {
+	const client = got.extend({
+		baseUrl: 'httpbin.org',
+		headers: {
+			'x-foo': 'bar'
+		}
+	});
+	const {headers} = (await client.get('/headers', {json: true})).body;
+	//=> headers['x-foo'] === 'bar'
+
+	const jsonClient = client.extend({
+		json: true,
+		headers: {
+			'x-baz': 'qux'
+		}
+	});
+	const {headers: headers2} = (await jsonClient.get('/headers')).body;
+	//=> headers2['x-foo'] === 'bar'
+	//=> headers2['x-baz'] === 'qux'
+})();
+```
+
+**Tip:** Need more control over the behavior of Got? Check out the [`got.create()`](advanced-creation.md).
+
+#### got.mergeOptions(parentOptions, newOptions)
+
+Extends parent options. Avoid using [object spread](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_syntax#Spread_in_object_literals) as it doesn't work recursively:
+
+```js
+const a = {headers: {cat: 'meow', wolf: ['bark', 'wrrr']}};
+const b = {headers: {cow: 'moo', wolf: ['auuu']}};
+
+{...a, ...b}            // => {headers: {cow: 'moo', wolf: ['auuu']}}
+got.mergeOptions(a, b)  // => {headers: {cat: 'meow', cow: 'moo', wolf: ['auuu']}}
+```
+
+Options are deeply merged to a new object. The value of each key is determined as follows:
+
+- If the new property is set to `undefined`, it keeps the old one.
+- If the parent property is an instance of `URL` and the new value is a `string` or `URL`, a new URL instance is created: [`new URL(new, parent)`](https://developer.mozilla.org/en-US/docs/Web/API/URL/URL#Syntax).
+- If the new property is a plain `Object`:
+	- If the parent property is a plain `Object` too, both values are merged recursively into a new `Object`.
+	- Otherwise, only the new value is deeply cloned.
+- If the new property is an `Array`, it overwrites the old one with a deep clone of the new property.
+- Otherwise, the new value is assigned to the key.
+
+#### got.defaults
+
+Type: `Object`
+
+The default Got options.
+
+## Errors
+
+Each error contains `host`, `hostname`, `method`, `path`, `protocol`, `url` and `gotOptions` properties to make debugging easier.
+
+In Promise mode, the `response` is attached to the error.
+
+#### got.CacheError
+
+When a cache method fails, for example, if the database goes down or there's a filesystem error.
+
+#### got.RequestError
+
+When a request fails. Contains a `code` property with error class code, like `ECONNREFUSED`.
+
+#### got.ReadError
+
+When reading from response stream fails.
+
+#### got.ParseError
+
+When `json` option is enabled, server response code is 2xx, and `JSON.parse` fails. Includes `statusCode` and `statusMessage` properties.
+
+#### got.HTTPError
+
+When the server response code is not 2xx. Includes `body`, `statusCode`, `statusMessage`, and `redirectUrls` properties.
+
+#### got.MaxRedirectsError
+
+When the server redirects you more than ten times. Includes a `statusCode`, `statusMessage`, and `redirectUrls` property which is an array of the URLs Got was redirected to before giving up.
+
+#### got.UnsupportedProtocolError
+
+When given an unsupported protocol.
+
+#### got.CancelError
+
+When the request is aborted with `.cancel()`.
+
+#### got.TimeoutError
+
+When the request is aborted due to a [timeout](#timeout). Includes an `event` property.
+
+## Aborting the request
+
+The promise returned by Got has a [`.cancel()`](https://github.com/sindresorhus/p-cancelable) method which when called, aborts the request.
+
+```js
+(async () => {
+	const request = got(url, options);
+
+	// …
+
+	// In another part of the code
+	if (something) {
+		request.cancel();
+	}
+
+	// …
+
+	try {
+		await request;
+	} catch (error) {
+		if (request.isCanceled) { // Or `error instanceof got.CancelError`
+			// Handle cancelation
+		}
+
+		// Handle other errors
+	}
+})();
+```
+
+<a name="cache-adapters"></a>
+## Cache
+
+Got implements [RFC 7234](http://httpwg.org/specs/rfc7234.html) compliant HTTP caching which works out of the box in-memory and is easily pluggable with a wide range of storage adapters. Fresh cache entries are served directly from the cache, and stale cache entries are revalidated with `If-None-Match`/`If-Modified-Since` headers. You can read more about the underlying cache behavior in the [`cacheable-request` documentation](https://github.com/lukechilds/cacheable-request).
+
+You can use the JavaScript `Map` type as an in-memory cache:
+
+```js
+const got = require('got');
+const map = new Map();
+
+(async () => {
+		let response = await got('sindresorhus.com', {cache: map});
+		console.log(response.fromCache);
+		//=> false
+
+		response = await got('sindresorhus.com', {cache: map});
+		console.log(response.fromCache);
+		//=> true
+})();
+```
+
+Got uses [Keyv](https://github.com/lukechilds/keyv) internally to support a wide range of storage adapters. For something more scalable you could use an [official Keyv storage adapter](https://github.com/lukechilds/keyv#official-storage-adapters):
+
+```
+$ npm install @keyv/redis
+```
+
+```js
+const got = require('got');
+const KeyvRedis = require('@keyv/redis');
+
+const redis = new KeyvRedis('redis://user:pass@localhost:6379');
+
+got('sindresorhus.com', {cache: redis});
+```
+
+Got supports anything that follows the Map API, so it's easy to write your own storage adapter or use a third-party solution.
+
+For example, the following are all valid storage adapters:
+
+```js
+const storageAdapter = new Map();
+// Or
+const storageAdapter = require('./my-storage-adapter');
+// Or
+const QuickLRU = require('quick-lru');
+const storageAdapter = new QuickLRU({maxSize: 1000});
+
+got('sindresorhus.com', {cache: storageAdapter});
+```
+
+View the [Keyv docs](https://github.com/lukechilds/keyv) for more information on how to use storage adapters.
+
+
+## Proxies
+
+You can use the [`tunnel`](https://github.com/koichik/node-tunnel) package with the `agent` option to work with proxies:
+
+```js
+const got = require('got');
+const tunnel = require('tunnel');
+
+got('sindresorhus.com', {
+	agent: tunnel.httpOverHttp({
+		proxy: {
+			host: 'localhost'
+		}
+	})
+});
+```
+
+Check out [`global-tunnel`](https://github.com/np-maintain/global-tunnel) if you want to configure proxy support for all HTTP/HTTPS traffic in your app.
+
+
+## Cookies
+
+You can use the [`tough-cookie`](https://github.com/salesforce/tough-cookie) package:
+
+```js
+const got = require('got');
+const {CookieJar} = require('tough-cookie');
+
+const cookieJar = new CookieJar();
+cookieJar.setCookie('foo=bar', 'https://www.google.com');
+
+got('google.com', {cookieJar});
+```
+
+
+## Form data
+
+You can use the [`form-data`](https://github.com/form-data/form-data) package to create POST request with form data:
+
+```js
+const fs = require('fs');
+const got = require('got');
+const FormData = require('form-data');
+const form = new FormData();
+
+form.append('my_file', fs.createReadStream('/foo/bar.jpg'));
+
+got.post('google.com', {
+	body: form
+});
+```
+
+
+## OAuth
+
+You can use the [`oauth-1.0a`](https://github.com/ddo/oauth-1.0a) package to create a signed OAuth request:
+
+```js
+const got = require('got');
+const crypto  = require('crypto');
+const OAuth = require('oauth-1.0a');
+
+const oauth = OAuth({
+	consumer: {
+		key: process.env.CONSUMER_KEY,
+		secret: process.env.CONSUMER_SECRET
+	},
+	signature_method: 'HMAC-SHA1',
+	hash_function: (baseString, key) => crypto.createHmac('sha1', key).update(baseString).digest('base64')
+});
+
+const token = {
+	key: process.env.ACCESS_TOKEN,
+	secret: process.env.ACCESS_TOKEN_SECRET
+};
+
+const url = 'https://api.twitter.com/1.1/statuses/home_timeline.json';
+
+got(url, {
+	headers: oauth.toHeader(oauth.authorize({url, method: 'GET'}, token)),
+	json: true
+});
+```
+
+
+## Unix Domain Sockets
+
+Requests can also be sent via [unix domain sockets](http://serverfault.com/questions/124517/whats-the-difference-between-unix-socket-and-tcp-ip-socket). Use the following URL scheme: `PROTOCOL://unix:SOCKET:PATH`.
+
+- `PROTOCOL` - `http` or `https` *(optional)*
+- `SOCKET` - Absolute path to a unix domain socket, for example: `/var/run/docker.sock`
+- `PATH` - Request path, for example: `/v2/keys`
+
+```js
+got('http://unix:/var/run/docker.sock:/containers/json');
+
+// Or without protocol (HTTP by default)
+got('unix:/var/run/docker.sock:/containers/json');
+```
+
+
+## AWS
+
+Requests to AWS services need to have their headers signed. This can be accomplished by using the [`aws4`](https://www.npmjs.com/package/aws4) package. This is an example for querying an ["API Gateway"](https://docs.aws.amazon.com/apigateway/api-reference/signing-requests/) with a signed request.
+
+```js
+const AWS = require('aws-sdk');
+const aws4 = require('aws4');
+const got = require('got');
+
+const chain = new AWS.CredentialProviderChain();
+
+// Create a Got instance to use relative paths and signed requests
+const awsClient = got.extend({
+	baseUrl: 'https://<api-id>.execute-api.<api-region>.amazonaws.com/<stage>/',
+	hooks: {
+		beforeRequest: [
+			async options => {
+				const credentials = await chain.resolvePromise();
+				aws4.sign(options, credentials);
+			}
+		]
+	}
+});
+
+const response = await awsClient('endpoint/path', {
+	// Request-specific options
+});
+```
+
+
+## Testing
+
+You can test your requests by using the [`nock`](https://github.com/node-nock/nock) package to mock an endpoint:
+
+```js
+const got = require('got');
+const nock = require('nock');
+
+nock('https://sindresorhus.com')
+	.get('/')
+	.reply(200, 'Hello world!');
+
+(async () => {
+	const response = await got('sindresorhus.com');
+	console.log(response.body);
+	//=> 'Hello world!'
+})();
+```
+
+If you need real integration tests you can use [`create-test-server`](https://github.com/lukechilds/create-test-server):
+
+```js
+const got = require('got');
+const createTestServer = require('create-test-server');
+
+(async () => {
+	const server = await createTestServer();
+	server.get('/', 'Hello world!');
+
+	const response = await got(server.url);
+	console.log(response.body);
+	//=> 'Hello world!'
+
+	await server.close();
+})();
+```
+
+
+## Tips
+
+### User Agent
+
+It's a good idea to set the `'user-agent'` header so the provider can more easily see how their resource is used. By default, it's the URL to this repo. You can omit this header by setting it to `null`.
+
+```js
+const got = require('got');
+const pkg = require('./package.json');
+
+got('sindresorhus.com', {
+	headers: {
+		'user-agent': `my-package/${pkg.version} (https://github.com/username/my-package)`
+	}
+});
+
+got('sindresorhus.com', {
+	headers: {
+		'user-agent': null
+	}
+});
+```
+
+### 304 Responses
+
+Bear in mind; if you send an `if-modified-since` header and receive a `304 Not Modified` response, the body will be empty. It's your responsibility to cache and retrieve the body contents.
+
+### Custom endpoints
+
+Use `got.extend()` to make it nicer to work with REST APIs. Especially if you use the `baseUrl` option.
+
+**Note:** Not to be confused with [`got.create()`](advanced-creation.md), which has no defaults.
+
+```js
+const got = require('got');
+const pkg = require('./package.json');
+
+const custom = got.extend({
+	baseUrl: 'example.com',
+	json: true,
+	headers: {
+		'user-agent': `my-package/${pkg.version} (https://github.com/username/my-package)`
+	}
+});
+
+// Use `custom` exactly how you use `got`
+(async () => {
+	const list = await custom('/v1/users/list');
+})();
+```
+
+**Tip:** Need to merge some instances into a single one? Check out [`got.mergeInstances()`](advanced-creation.md#merging-instances).
+
+### Experimental HTTP2 support
+
+Got provides an experimental support for HTTP2 using the [`http2-wrapper`](https://github.com/szmarczak/http2-wrapper) package:
+
+```js
+const got = require('got');
+const {request} = require('http2-wrapper');
+
+const h2got = got.extend({request});
+
+(async () => {
+	const {body} = await h2got('https://nghttp2.org/httpbin/headers');
+	console.log(body);
+})();
+```
+
+## Comparison
+
+|                       |      `got`     | [`request`][r0] | [`node-fetch`][n0] |  [`axios`][a0]  |  [`superagent`][s0]  |
+|-----------------------|:--------------:|:---------------:|:------------------:|:---------------:|:--------------------:|
+| HTTP/2 support        |        ❔       |        ✖       |          ✖         |        ✖       |          ✔\*\*      |
+| Browser support       |        ✖       |        ✖       |          ✔\*       |        ✔       |          ✔          |
+| Electron support      |        ✔       |        ✖       |          ✖         |        ✖       |          ✖          |
+| Promise API           |        ✔       |        ✔       |          ✔         |        ✔       |          ✔          |
+| Stream API            |        ✔       |        ✔       |    Node.js only    |        ✖       |          ✔          |
+| Request cancelation   |        ✔       |        ✖       |          ✔         |        ✔       |          ✔          |
+| RFC compliant caching |        ✔       |        ✖       |          ✖         |        ✖       |          ✖          |
+| Cookies (out-of-box)  |        ✔       |        ✔       |          ✖         |        ✖       |          ✖          |
+| Follows redirects     |        ✔       |        ✔       |          ✔         |        ✔       |          ✔          |
+| Retries on failure    |        ✔       |        ✖       |          ✖         |        ✖       |          ✔          |
+| Progress events       |        ✔       |        ✖       |          ✖         |  Browser only  |          ✔          |
+| Handles gzip/deflate  |        ✔       |        ✔       |          ✔         |        ✔       |          ✔          |
+| Advanced timeouts     |        ✔       |        ✖       |          ✖         |        ✖       |          ✖          |
+| Timings               |        ✔       |        ✔       |          ✖         |        ✖       |          ✖          |
+| Errors with metadata  |        ✔       |        ✖       |          ✖         |        ✔       |          ✖          |
+| JSON mode             |        ✔       |        ✔       |          ✖         |        ✔       |          ✔          |
+| Custom defaults       |        ✔       |        ✔       |          ✖         |        ✔       |          ✖          |
+| Composable            |        ✔       |        ✖       |          ✖         |        ✖       |          ✔          |
+| Hooks                 |        ✔       |        ✖       |          ✖         |        ✔       |          ✖          |
+| Issues open           | [![][gio]][g1] | [![][rio]][r1]  |   [![][nio]][n1]   |  [![][aio]][a1] |   [![][sio]][s1]    |
+| Issues closed         | [![][gic]][g2] | [![][ric]][r2]  |   [![][nic]][n2]   |  [![][aic]][a2] |   [![][sic]][s2]    |
+| Downloads             | [![][gd]][g3]  |  [![][rd]][r3]  |   [![][nd]][n3]    |  [![][ad]][a3]  |   [![][sd]][s3]     |
+| Coverage              | [![][gc]][g4]  |  [![][rc]][r4]  |   [![][nc]][n4]    |  [![][ac]][a4]  |       unknown       |
+| Build                 | [![][gb]][g5]  |  [![][rb]][r5]  |   [![][nb]][n5]    |  [![][ab]][a5]  |   [![][sb]][s5]     |
+| Bugs                  | [![][gbg]][g6] | [![][rbg]][r6]  |   [![][nbg]][n6]   |  [![][abg]][a6] |   [![][sbg]][s6]    |
+| Dependents            | [![][gdp]][g7] | [![][rdp]][r7]  |   [![][ndp]][n7]   |  [![][adp]][a7] |   [![][sdp]][s7]    |
+| Install size          | [![][gis]][g8] | [![][ris]][r8]  |   [![][nis]][n8]   |  [![][ais]][a8] |   [![][sis]][s8]    |
+
+\* It's almost API compatible with the browser `fetch` API.<br>
+\*\* Need to switch the protocol manually.<br>
+❔ Experimental support.
+
+<!-- GITHUB -->
+[r0]: https://github.com/request/request
+[n0]: https://github.com/bitinn/node-fetch
+[a0]: https://github.com/axios/axios
+[s0]: https://github.com/visionmedia/superagent
+
+<!-- ISSUES OPEN -->
+[gio]: https://badgen.net/github/open-issues/sindresorhus/got?label
+[rio]: https://badgen.net/github/open-issues/request/request?label
+[nio]: https://badgen.net/github/open-issues/bitinn/node-fetch?label
+[aio]: https://badgen.net/github/open-issues/axios/axios?label
+[sio]: https://badgen.net/github/open-issues/visionmedia/superagent?label
+
+[g1]: https://github.com/sindresorhus/got/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc
+[r1]: https://github.com/request/request/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc
+[n1]: https://github.com/bitinn/node-fetch/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc
+[a1]: https://github.com/axios/axios/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc
+[s1]: https://github.com/visionmedia/superagent/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc
+
+<!-- ISSUES CLOSED -->
+[gic]: https://badgen.net/github/closed-issues/sindresorhus/got?label
+[ric]: https://badgen.net/github/closed-issues/request/request?label
+[nic]: https://badgen.net/github/closed-issues/bitinn/node-fetch?label
+[aic]: https://badgen.net/github/closed-issues/axios/axios?label
+[sic]: https://badgen.net/github/closed-issues/visionmedia/superagent?label
+
+[g2]: https://github.com/sindresorhus/got/issues?q=is%3Aissue+is%3Aclosed+sort%3Aupdated-desc
+[r2]: https://github.com/request/request/issues?q=is%3Aissue+is%3Aclosed+sort%3Aupdated-desc
+[n2]: https://github.com/bitinn/node-fetch/issues?q=is%3Aissue+is%3Aclosed+sort%3Aupdated-desc
+[a2]: https://github.com/axios/axios/issues?q=is%3Aissue+is%3Aclosed+sort%3Aupdated-desc
+[s2]: https://github.com/visionmedia/superagent/issues?q=is%3Aissue+is%3Aclosed+sort%3Aupdated-desc
+
+<!-- DOWNLOADS -->
+[gd]: https://badgen.net/npm/dm/got?label
+[rd]: https://badgen.net/npm/dm/request?label
+[nd]: https://badgen.net/npm/dm/node-fetch?label
+[ad]: https://badgen.net/npm/dm/axios?label
+[sd]: https://badgen.net/npm/dm/superagent?label
+
+[g3]: https://www.npmjs.com/package/got
+[r3]: https://www.npmjs.com/package/request
+[n3]: https://www.npmjs.com/package/node-fetch
+[a3]: https://www.npmjs.com/package/axios
+[s3]: https://www.npmjs.com/package/superagent
+
+<!-- COVERAGE -->
+[gc]: https://badgen.net/coveralls/c/github/sindresorhus/got?label
+[rc]: https://badgen.net/coveralls/c/github/request/request?label
+[nc]: https://badgen.net/coveralls/c/github/bitinn/node-fetch?label
+[ac]: https://badgen.net/coveralls/c/github/mzabriskie/axios?label
+
+[g4]: https://coveralls.io/github/sindresorhus/got
+[r4]: https://coveralls.io/github/request/request
+[n4]: https://coveralls.io/github/bitinn/node-fetch
+[a4]: https://coveralls.io/github/mzabriskie/axios
+
+<!-- BUILD -->
+[gb]: https://badgen.net/travis/sindresorhus/got?label
+[rb]: https://badgen.net/travis/request/request?label
+[nb]: https://badgen.net/travis/bitinn/node-fetch?label
+[ab]: https://badgen.net/travis/axios/axios?label
+[sb]: https://badgen.net/travis/visionmedia/superagent?label
+
+[g5]: https://travis-ci.org/sindresorhus/got
+[r5]: https://travis-ci.org/request/request
+[n5]: https://travis-ci.org/bitinn/node-fetch
+[a5]: https://travis-ci.org/axios/axios
+[s5]: https://travis-ci.org/visionmedia/superagent
+
+<!-- BUGS -->
+[gbg]: https://badgen.net/github/label-issues/sindresorhus/got/bug/open?label
+[rbg]: https://badgen.net/github/label-issues/request/request/Needs%20investigation/open?label
+[nbg]: https://badgen.net/github/label-issues/bitinn/node-fetch/bug/open?label
+[abg]: https://badgen.net/github/label-issues/axios/axios/bug/open?label
+[sbg]: https://badgen.net/github/label-issues/visionmedia/superagent/Bug/open?label
+
+[g6]: https://github.com/sindresorhus/got/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc+label%3Abug
+[r6]: https://github.com/request/request/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc+label%3A"Needs+investigation"
+[n6]: https://github.com/bitinn/node-fetch/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc+label%3Abug
+[a6]: https://github.com/axios/axios/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc+label%3Abug
+[s6]: https://github.com/visionmedia/superagent/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc+label%3ABug
+
+<!-- DEPENDENTS -->
+[gdp]: https://badgen.net/npm/dependents/got?label
+[rdp]: https://badgen.net/npm/dependents/request?label
+[ndp]: https://badgen.net/npm/dependents/node-fetch?label
+[adp]: https://badgen.net/npm/dependents/axios?label
+[sdp]: https://badgen.net/npm/dependents/superagent?label
+
+[g7]: https://www.npmjs.com/package/got?activeTab=dependents
+[r7]: https://www.npmjs.com/package/request?activeTab=dependents
+[n7]: https://www.npmjs.com/package/node-fetch?activeTab=dependents
+[a7]: https://www.npmjs.com/package/axios?activeTab=dependents
+[s7]: https://www.npmjs.com/package/visionmedia?activeTab=dependents
+
+<!-- INSTALL SIZE -->
+[gis]: https://badgen.net/packagephobia/install/got?label
+[ris]: https://badgen.net/packagephobia/install/request?label
+[nis]: https://badgen.net/packagephobia/install/node-fetch?label
+[ais]: https://badgen.net/packagephobia/install/axios?label
+[sis]: https://badgen.net/packagephobia/install/superagent?label
+
+[g8]: https://packagephobia.now.sh/result?p=got
+[r8]: https://packagephobia.now.sh/result?p=request
+[n8]: https://packagephobia.now.sh/result?p=node-fetch
+[a8]: https://packagephobia.now.sh/result?p=axios
+[s8]: https://packagephobia.now.sh/result?p=superagent
+
+
+## Related
+
+- [gh-got](https://github.com/sindresorhus/gh-got) - Got convenience wrapper to interact with the GitHub API
+- [gl-got](https://github.com/singapore/gl-got) - Got convenience wrapper to interact with the GitLab API
+- [travis-got](https://github.com/samverschueren/travis-got) - Got convenience wrapper to interact with the Travis API
+- [graphql-got](https://github.com/kevva/graphql-got) - Got convenience wrapper to interact with GraphQL
+- [GotQL](https://github.com/khaosdoctor/gotql) - Got convenience wrapper to interact with GraphQL using JSON-parsed queries instead of strings
+
+
+## Maintainers
+
+[![Sindre Sorhus](https://github.com/sindresorhus.png?size=100)](https://sindresorhus.com) | [![Vsevolod Strukchinsky](https://github.com/floatdrop.png?size=100)](https://github.com/floatdrop) | [![Alexander Tesfamichael](https://github.com/AlexTes.png?size=100)](https://github.com/AlexTes) | [![Luke Childs](https://github.com/lukechilds.png?size=100)](https://github.com/lukechilds) | [![Szymon Marczak](https://github.com/szmarczak.png?size=100)](https://github.com/szmarczak) | [![Brandon Smith](https://github.com/brandon93s.png?size=100)](https://github.com/brandon93s)
+---|---|---|---|---|---
+[Sindre Sorhus](https://sindresorhus.com) | [Vsevolod Strukchinsky](https://github.com/floatdrop) | [Alexander Tesfamichael](https://alextes.me) | [Luke Childs](https://github.com/lukechilds) | [Szymon Marczak](https://github.com/szmarczak) | [Brandon Smith](https://github.com/brandon93s)
+
+
+## License
+
+MIT
diff --git a/helloworld/node_modules/got/source/as-promise.js b/helloworld/node_modules/got/source/as-promise.js
new file mode 100755
index 0000000..c502325
--- /dev/null
+++ b/helloworld/node_modules/got/source/as-promise.js
@@ -0,0 +1,108 @@
+'use strict';
+const EventEmitter = require('events');
+const getStream = require('get-stream');
+const is = require('@sindresorhus/is');
+const PCancelable = require('p-cancelable');
+const requestAsEventEmitter = require('./request-as-event-emitter');
+const {HTTPError, ParseError, ReadError} = require('./errors');
+const {options: mergeOptions} = require('./merge');
+const {reNormalize} = require('./normalize-arguments');
+
+const asPromise = options => {
+	const proxy = new EventEmitter();
+
+	const promise = new PCancelable((resolve, reject, onCancel) => {
+		const emitter = requestAsEventEmitter(options);
+
+		onCancel(emitter.abort);
+
+		emitter.on('response', async response => {
+			proxy.emit('response', response);
+
+			const stream = is.null(options.encoding) ? getStream.buffer(response) : getStream(response, options);
+
+			let data;
+			try {
+				data = await stream;
+			} catch (error) {
+				reject(new ReadError(error, options));
+				return;
+			}
+
+			const limitStatusCode = options.followRedirect ? 299 : 399;
+
+			response.body = data;
+
+			try {
+				for (const [index, hook] of Object.entries(options.hooks.afterResponse)) {
+					// eslint-disable-next-line no-await-in-loop
+					response = await hook(response, updatedOptions => {
+						updatedOptions = reNormalize(mergeOptions(options, {
+							...updatedOptions,
+							retry: 0,
+							throwHttpErrors: false
+						}));
+
+						// Remove any further hooks for that request, because we we'll call them anyway.
+						// The loop continues. We don't want duplicates (asPromise recursion).
+						updatedOptions.hooks.afterResponse = options.hooks.afterResponse.slice(0, index);
+
+						return asPromise(updatedOptions);
+					});
+				}
+			} catch (error) {
+				reject(error);
+				return;
+			}
+
+			const {statusCode} = response;
+
+			if (options.json && response.body) {
+				try {
+					response.body = JSON.parse(response.body);
+				} catch (error) {
+					if (statusCode >= 200 && statusCode < 300) {
+						const parseError = new ParseError(error, statusCode, options, data);
+						Object.defineProperty(parseError, 'response', {value: response});
+						reject(parseError);
+						return;
+					}
+				}
+			}
+
+			if (statusCode !== 304 && (statusCode < 200 || statusCode > limitStatusCode)) {
+				const error = new HTTPError(response, options);
+				Object.defineProperty(error, 'response', {value: response});
+				if (emitter.retry(error) === false) {
+					if (options.throwHttpErrors) {
+						reject(error);
+						return;
+					}
+
+					resolve(response);
+				}
+
+				return;
+			}
+
+			resolve(response);
+		});
+
+		emitter.once('error', reject);
+		[
+			'request',
+			'redirect',
+			'uploadProgress',
+			'downloadProgress'
+		].forEach(event => emitter.on(event, (...args) => proxy.emit(event, ...args)));
+	});
+
+	promise.on = (name, fn) => {
+		proxy.on(name, fn);
+		return promise;
+	};
+
+	return promise;
+};
+
+module.exports = asPromise;
diff --git a/helloworld/node_modules/got/source/as-stream.js b/helloworld/node_modules/got/source/as-stream.js
new file mode 100755
index 0000000..98c5342
--- /dev/null
+++ b/helloworld/node_modules/got/source/as-stream.js
@@ -0,0 +1,93 @@
+'use strict';
+const {PassThrough} = require('stream');
+const duplexer3 = require('duplexer3');
+const requestAsEventEmitter = require('./request-as-event-emitter');
+const {HTTPError, ReadError} = require('./errors');
+
+module.exports = options => {
+	const input = new PassThrough();
+	const output = new PassThrough();
+	const proxy = duplexer3(input, output);
+	const piped = new Set();
+	let isFinished = false;
+
+	options.retry.retries = () => 0;
+
+	if (options.body) {
+		proxy.write = () => {
+			throw new Error('Got\'s stream is not writable when the `body` option is used');
+		};
+	}
+
+	const emitter = requestAsEventEmitter(options, input);
+
+	// Cancels the request
+	proxy._destroy = emitter.abort;
+
+	emitter.on('response', response => {
+		const {statusCode} = response;
+
+		response.on('error', error => {
+			proxy.emit('error', new ReadError(error, options));
+		});
+
+		if (options.throwHttpErrors && statusCode !== 304 && (statusCode < 200 || statusCode > 299)) {
+			proxy.emit('error', new HTTPError(response, options), null, response);
+			return;
+		}
+
+		isFinished = true;
+
+		response.pipe(output);
+
+		for (const destination of piped) {
+			if (destination.headersSent) {
+				continue;
+			}
+
+			for (const [key, value] of Object.entries(response.headers)) {
+				// Got gives *decompressed* data. Overriding `content-encoding` header would result in an error.
+				// It's not possible to decompress already decompressed data, is it?
+				const allowed = options.decompress ? key !== 'content-encoding' : true;
+				if (allowed) {
+					destination.setHeader(key, value);
+				}
+			}
+
+			destination.statusCode = response.statusCode;
+		}
+
+		proxy.emit('response', response);
+	});
+
+	[
+		'error',
+		'request',
+		'redirect',
+		'uploadProgress',
+		'downloadProgress'
+	].forEach(event => emitter.on(event, (...args) => proxy.emit(event, ...args)));
+
+	const pipe = proxy.pipe.bind(proxy);
+	const unpipe = proxy.unpipe.bind(proxy);
+	proxy.pipe = (destination, options) => {
+		if (isFinished) {
+			throw new Error('Failed to pipe. The response has been emitted already.');
+		}
+
+		const result = pipe(destination, options);
+
+		if (Reflect.has(destination, 'setHeader')) {
+			piped.add(destination);
+		}
+
+		return result;
+	};
+
+	proxy.unpipe = stream => {
+		piped.delete(stream);
+		return unpipe(stream);
+	};
+
+	return proxy;
+};
diff --git a/helloworld/node_modules/got/source/create.js b/helloworld/node_modules/got/source/create.js
new file mode 100755
index 0000000..b78c51f
--- /dev/null
+++ b/helloworld/node_modules/got/source/create.js
@@ -0,0 +1,79 @@
+'use strict';
+const errors = require('./errors');
+const asStream = require('./as-stream');
+const asPromise = require('./as-promise');
+const normalizeArguments = require('./normalize-arguments');
+const merge = require('./merge');
+const deepFreeze = require('./utils/deep-freeze');
+
+const getPromiseOrStream = options => options.stream ? asStream(options) : asPromise(options);
+
+const aliases = [
+	'get',
+	'post',
+	'put',
+	'patch',
+	'head',
+	'delete'
+];
+
+const create = defaults => {
+	defaults = merge({}, defaults);
+	normalizeArguments.preNormalize(defaults.options);
+
+	if (!defaults.handler) {
+		// This can't be getPromiseOrStream, because when merging
+		// the chain would stop at this point and no further handlers would be called.
+		defaults.handler = (options, next) => next(options);
+	}
+
+	function got(url, options) {
+		try {
+			return defaults.handler(normalizeArguments(url, options, defaults), getPromiseOrStream);
+		} catch (error) {
+			if (options && options.stream) {
+				throw error;
+			} else {
+				return Promise.reject(error);
+			}
+		}
+	}
+
+	got.create = create;
+	got.extend = options => {
+		let mutableDefaults;
+		if (options && Reflect.has(options, 'mutableDefaults')) {
+			mutableDefaults = options.mutableDefaults;
+			delete options.mutableDefaults;
+		} else {
+			mutableDefaults = defaults.mutableDefaults;
+		}
+
+		return create({
+			options: merge.options(defaults.options, options),
+			handler: defaults.handler,
+			mutableDefaults
+		});
+	};
+
+	got.mergeInstances = (...args) => create(merge.instances(args));
+
+	got.stream = (url, options) => got(url, {...options, stream: true});
+
+	for (const method of aliases) {
+		got[method] = (url, options) => got(url, {...options, method});
+		got.stream[method] = (url, options) => got.stream(url, {...options, method});
+	}
+
+	Object.assign(got, {...errors, mergeOptions: merge.options});
+	Object.defineProperty(got, 'defaults', {
+		value: defaults.mutableDefaults ? defaults : deepFreeze(defaults),
+		writable: defaults.mutableDefaults,
+		configurable: defaults.mutableDefaults,
+		enumerable: true
+	});
+
+	return got;
+};
+
+module.exports = create;
diff --git a/helloworld/node_modules/got/source/errors.js b/helloworld/node_modules/got/source/errors.js
new file mode 100755
index 0000000..b6cbadc
--- /dev/null
+++ b/helloworld/node_modules/got/source/errors.js
@@ -0,0 +1,107 @@
+'use strict';
+const urlLib = require('url');
+const http = require('http');
+const PCancelable = require('p-cancelable');
+const is = require('@sindresorhus/is');
+
+class GotError extends Error {
+	constructor(message, error, options) {
+		super(message);
+		Error.captureStackTrace(this, this.constructor);
+		this.name = 'GotError';
+
+		if (!is.undefined(error.code)) {
+			this.code = error.code;
+		}
+
+		Object.assign(this, {
+			host: options.host,
+			hostname: options.hostname,
+			method: options.method,
+			path: options.path,
+			socketPath: options.socketPath,
+			protocol: options.protocol,
+			url: options.href,
+			gotOptions: options
+		});
+	}
+}
+
+module.exports.GotError = GotError;
+
+module.exports.CacheError = class extends GotError {
+	constructor(error, options) {
+		super(error.message, error, options);
+		this.name = 'CacheError';
+	}
+};
+
+module.exports.RequestError = class extends GotError {
+	constructor(error, options) {
+		super(error.message, error, options);
+		this.name = 'RequestError';
+	}
+};
+
+module.exports.ReadError = class extends GotError {
+	constructor(error, options) {
+		super(error.message, error, options);
+		this.name = 'ReadError';
+	}
+};
+
+module.exports.ParseError = class extends GotError {
+	constructor(error, statusCode, options, data) {
+		super(`${error.message} in "${urlLib.format(options)}": \n${data.slice(0, 77)}...`, error, options);
+		this.name = 'ParseError';
+		this.statusCode = statusCode;
+		this.statusMessage = http.STATUS_CODES[this.statusCode];
+	}
+};
+
+module.exports.HTTPError = class extends GotError {
+	constructor(response, options) {
+		const {statusCode} = response;
+		let {statusMessage} = response;
+
+		if (statusMessage) {
+			statusMessage = statusMessage.replace(/\r?\n/g, ' ').trim();
+		} else {
+			statusMessage = http.STATUS_CODES[statusCode];
+		}
+
+		super(`Response code ${statusCode} (${statusMessage})`, {}, options);
+		this.name = 'HTTPError';
+		this.statusCode = statusCode;
+		this.statusMessage = statusMessage;
+		this.headers = response.headers;
+		this.body = response.body;
+	}
+};
+
+module.exports.MaxRedirectsError = class extends GotError {
+	constructor(statusCode, redirectUrls, options) {
+		super('Redirected 10 times. Aborting.', {}, options);
+		this.name = 'MaxRedirectsError';
+		this.statusCode = statusCode;
+		this.statusMessage = http.STATUS_CODES[this.statusCode];
+		this.redirectUrls = redirectUrls;
+	}
+};
+
+module.exports.UnsupportedProtocolError = class extends GotError {
+	constructor(options) {
+		super(`Unsupported protocol "${options.protocol}"`, {}, options);
+		this.name = 'UnsupportedProtocolError';
+	}
+};
+
+module.exports.TimeoutError = class extends GotError {
+	constructor(error, options) {
+		super(error.message, {code: 'ETIMEDOUT'}, options);
+		this.name = 'TimeoutError';
+		this.event = error.event;
+	}
+};
+
+module.exports.CancelError = PCancelable.CancelError;
diff --git a/helloworld/node_modules/got/source/get-response.js b/helloworld/node_modules/got/source/get-response.js
new file mode 100755
index 0000000..18453c2
--- /dev/null
+++ b/helloworld/node_modules/got/source/get-response.js
@@ -0,0 +1,31 @@
+'use strict';
+const decompressResponse = require('decompress-response');
+const is = require('@sindresorhus/is');
+const mimicResponse = require('mimic-response');
+const progress = require('./progress');
+
+module.exports = (response, options, emitter) => {
+	const downloadBodySize = Number(response.headers['content-length']) || null;
+
+	const progressStream = progress.download(response, emitter, downloadBodySize);
+
+	mimicResponse(response, progressStream);
+
+	const newResponse = options.decompress === true &&
+		is.function(decompressResponse) &&
+		options.method !== 'HEAD' ? decompressResponse(progressStream) : progressStream;
+
+	if (!options.decompress && ['gzip', 'deflate'].includes(response.headers['content-encoding'])) {
+		options.encoding = null;
+	}
+
+	emitter.emit('response', newResponse);
+
+	emitter.emit('downloadProgress', {
+		percent: 0,
+		transferred: 0,
+		total: downloadBodySize
+	});
+
+	response.pipe(progressStream);
+};
diff --git a/helloworld/node_modules/got/source/index.js b/helloworld/node_modules/got/source/index.js
new file mode 100755
index 0000000..cbf7c37
--- /dev/null
+++ b/helloworld/node_modules/got/source/index.js
@@ -0,0 +1,60 @@
+'use strict';
+const pkg = require('../package.json');
+const create = require('./create');
+
+const defaults = {
+	options: {
+		retry: {
+			retries: 2,
+			methods: [
+				'GET',
+				'PUT',
+				'HEAD',
+				'DELETE',
+				'OPTIONS',
+				'TRACE'
+			],
+			statusCodes: [
+				408,
+				413,
+				429,
+				500,
+				502,
+				503,
+				504
+			],
+			errorCodes: [
+				'ETIMEDOUT',
+				'ECONNRESET',
+				'EADDRINUSE',
+				'ECONNREFUSED',
+				'EPIPE',
+				'ENOTFOUND',
+				'ENETUNREACH',
+				'EAI_AGAIN'
+			]
+		},
+		headers: {
+			'user-agent': `${pkg.name}/${pkg.version} (https://github.com/sindresorhus/got)`
+		},
+		hooks: {
+			beforeRequest: [],
+			beforeRedirect: [],
+			beforeRetry: [],
+			afterResponse: []
+		},
+		decompress: true,
+		throwHttpErrors: true,
+		followRedirect: true,
+		stream: false,
+		form: false,
+		json: false,
+		cache: false,
+		useElectronNet: false
+	},
+	mutableDefaults: false
+};
+
+const got = create(defaults);
+
+module.exports = got;
diff --git a/helloworld/node_modules/got/source/known-hook-events.js b/helloworld/node_modules/got/source/known-hook-events.js
new file mode 100755
index 0000000..cd245e1
--- /dev/null
+++ b/helloworld/node_modules/got/source/known-hook-events.js
@@ -0,0 +1,10 @@
+'use strict';
+
+module.exports = [
+	'beforeError',
+	'init',
+	'beforeRequest',
+	'beforeRedirect',
+	'beforeRetry',
+	'afterResponse'
+];
diff --git a/helloworld/node_modules/got/source/merge.js b/helloworld/node_modules/got/source/merge.js
new file mode 100755
index 0000000..900f09a
--- /dev/null
+++ b/helloworld/node_modules/got/source/merge.js
@@ -0,0 +1,73 @@
+'use strict';
+const {URL} = require('url');
+const is = require('@sindresorhus/is');
+const knownHookEvents = require('./known-hook-events');
+
+const merge = (target, ...sources) => {
+	for (const source of sources) {
+		for (const [key, sourceValue] of Object.entries(source)) {
+			if (is.undefined(sourceValue)) {
+				continue;
+			}
+
+			const targetValue = target[key];
+			if (is.urlInstance(targetValue) && (is.urlInstance(sourceValue) || is.string(sourceValue))) {
+				target[key] = new URL(sourceValue, targetValue);
+			} else if (is.plainObject(sourceValue)) {
+				if (is.plainObject(targetValue)) {
+					target[key] = merge({}, targetValue, sourceValue);
+				} else {
+					target[key] = merge({}, sourceValue);
+				}
+			} else if (is.array(sourceValue)) {
+				target[key] = merge([], sourceValue);
+			} else {
+				target[key] = sourceValue;
+			}
+		}
+	}
+
+	return target;
+};
+
+const mergeOptions = (...sources) => {
+	sources = sources.map(source => source || {});
+	const merged = merge({}, ...sources);
+
+	const hooks = {};
+	for (const hook of knownHookEvents) {
+		hooks[hook] = [];
+	}
+
+	for (const source of sources) {
+		if (source.hooks) {
+			for (const hook of knownHookEvents) {
+				hooks[hook] = hooks[hook].concat(source.hooks[hook]);
+			}
+		}
+	}
+
+	merged.hooks = hooks;
+
+	return merged;
+};
+
+const mergeInstances = (instances, methods) => {
+	const handlers = instances.map(instance => instance.defaults.handler);
+	const size = instances.length - 1;
+
+	return {
+		methods,
+		options: mergeOptions(...instances.map(instance => instance.defaults.options)),
+		handler: (options, next) => {
+			let iteration = -1;
+			const iterate = options => handlers[++iteration](options, iteration === size ? next : iterate);
+
+			return iterate(options);
+		}
+	};
+};
+
+module.exports = merge;
+module.exports.options = mergeOptions;
+module.exports.instances = mergeInstances;
diff --git a/helloworld/node_modules/got/source/normalize-arguments.js b/helloworld/node_modules/got/source/normalize-arguments.js
new file mode 100755
index 0000000..665cbce
--- /dev/null
+++ b/helloworld/node_modules/got/source/normalize-arguments.js
@@ -0,0 +1,265 @@
+'use strict';
+const {URL, URLSearchParams} = require('url'); // TODO: Use the `URL` global when targeting Node.js 10
+const urlLib = require('url');
+const is = require('@sindresorhus/is');
+const urlParseLax = require('url-parse-lax');
+const lowercaseKeys = require('lowercase-keys');
+const urlToOptions = require('./utils/url-to-options');
+const isFormData = require('./utils/is-form-data');
+const merge = require('./merge');
+const knownHookEvents = require('./known-hook-events');
+
+const retryAfterStatusCodes = new Set([413, 429, 503]);
+
+// `preNormalize` handles static options (e.g. headers).
+// For example, when you create a custom instance and make a request
+// with no static changes, they won't be normalized again.
+//
+// `normalize` operates on dynamic options - they cannot be saved.
+// For example, `body` is everytime different per request.
+// When it's done normalizing the new options, it performs merge()
+// on the prenormalized options and the normalized ones.
+
+const preNormalize = (options, defaults) => {
+	if (is.nullOrUndefined(options.headers)) {
+		options.headers = {};
+	} else {
+		options.headers = lowercaseKeys(options.headers);
+	}
+
+	if (options.baseUrl && !options.baseUrl.toString().endsWith('/')) {
+		options.baseUrl += '/';
+	}
+
+	if (options.stream) {
+		options.json = false;
+	}
+
+	if (is.nullOrUndefined(options.hooks)) {
+		options.hooks = {};
+	} else if (!is.object(options.hooks)) {
+		throw new TypeError(`Parameter \`hooks\` must be an object, not ${is(options.hooks)}`);
+	}
+
+	for (const event of knownHookEvents) {
+		if (is.nullOrUndefined(options.hooks[event])) {
+			if (defaults) {
+				options.hooks[event] = [...defaults.hooks[event]];
+			} else {
+				options.hooks[event] = [];
+			}
+		}
+	}
+
+	if (is.number(options.timeout)) {
+		options.gotTimeout = {request: options.timeout};
+	} else if (is.object(options.timeout)) {
+		options.gotTimeout = options.timeout;
+	}
+
+	delete options.timeout;
+
+	const {retry} = options;
+	options.retry = {
+		retries: 0,
+		methods: [],
+		statusCodes: [],
+		errorCodes: []
+	};
+
+	if (is.nonEmptyObject(defaults) && retry !== false) {
+		options.retry = {...defaults.retry};
+	}
+
+	if (retry !== false) {
+		if (is.number(retry)) {
+			options.retry.retries = retry;
+		} else {
+			options.retry = {...options.retry, ...retry};
+		}
+	}
+
+	if (options.gotTimeout) {
+		options.retry.maxRetryAfter = Math.min(...[options.gotTimeout.request, options.gotTimeout.connection].filter(n => !is.nullOrUndefined(n)));
+	}
+
+	if (is.array(options.retry.methods)) {
+		options.retry.methods = new Set(options.retry.methods.map(method => method.toUpperCase()));
+	}
+
+	if (is.array(options.retry.statusCodes)) {
+		options.retry.statusCodes = new Set(options.retry.statusCodes);
+	}
+
+	if (is.array(options.retry.errorCodes)) {
+		options.retry.errorCodes = new Set(options.retry.errorCodes);
+	}
+
+	return options;
+};
+
+const normalize = (url, options, defaults) => {
+	if (is.plainObject(url)) {
+		options = {...url, ...options};
+		url = options.url || {};
+		delete options.url;
+	}
+
+	if (defaults) {
+		options = merge({}, defaults.options, options ? preNormalize(options, defaults.options) : {});
+	} else {
+		options = merge({}, preNormalize(options));
+	}
+
+	if (!is.string(url) && !is.object(url)) {
+		throw new TypeError(`Parameter \`url\` must be a string or object, not ${is(url)}`);
+	}
+
+	if (is.string(url)) {
+		if (options.baseUrl) {
+			if (url.toString().startsWith('/')) {
+				url = url.toString().slice(1);
+			}
+
+			url = urlToOptions(new URL(url, options.baseUrl));
+		} else {
+			url = url.replace(/^unix:/, 'http://$&');
+			url = urlParseLax(url);
+		}
+	} else if (is(url) === 'URL') {
+		url = urlToOptions(url);
+	}
+
+	// Override both null/undefined with default protocol
+	options = merge({path: ''}, url, {protocol: url.protocol || 'https:'}, options);
+
+	for (const hook of options.hooks.init) {
+		const called = hook(options);
+
+		if (is.promise(called)) {
+			throw new TypeError('The `init` hook must be a synchronous function');
+		}
+	}
+
+	const {baseUrl} = options;
+	Object.defineProperty(options, 'baseUrl', {
+		set: () => {
+			throw new Error('Failed to set baseUrl. Options are normalized already.');
+		},
+		get: () => baseUrl
+	});
+
+	const {query} = options;
+	if (is.nonEmptyString(query) || is.nonEmptyObject(query) || query instanceof URLSearchParams) {
+		if (!is.string(query)) {
+			options.query = (new URLSearchParams(query)).toString();
+		}
+
+		options.path = `${options.path.split('?')[0]}?${options.query}`;
+		delete options.query;
+	}
+
+	if (options.hostname === 'unix') {
+		const matches = /(.+?):(.+)/.exec(options.path);
+
+		if (matches) {
+			const [, socketPath, path] = matches;
+			options = {
+				...options,
+				socketPath,
+				path,
+				host: null
+			};
+		}
+	}
+
+	const {headers} = options;
+	for (const [key, value] of Object.entries(headers)) {
+		if (is.nullOrUndefined(value)) {
+			delete headers[key];
+		}
+	}
+
+	if (options.json && is.undefined(headers.accept)) {
+		headers.accept = 'application/json';
+	}
+
+	if (options.decompress && is.undefined(headers['accept-encoding'])) {
+		headers['accept-encoding'] = 'gzip, deflate';
+	}
+
+	const {body} = options;
+	if (is.nullOrUndefined(body)) {
+		options.method = options.method ? options.method.toUpperCase() : 'GET';
+	} else {
+		const isObject = is.object(body) && !is.buffer(body) && !is.nodeStream(body);
+		if (!is.nodeStream(body) && !is.string(body) && !is.buffer(body) && !(options.form || options.json)) {
+			throw new TypeError('The `body` option must be a stream.Readable, string or Buffer');
+		}
+
+		if (options.json && !(isObject || is.array(body))) {
+			throw new TypeError('The `body` option must be an Object or Array when the `json` option is used');
+		}
+
+		if (options.form && !isObject) {
+			throw new TypeError('The `body` option must be an Object when the `form` option is used');
+		}
+
+		if (isFormData(body)) {
+			// Special case for https://github.com/form-data/form-data
+			headers['content-type'] = headers['content-type'] || `multipart/form-data; boundary=${body.getBoundary()}`;
+		} else if (options.form) {
+			headers['content-type'] = headers['content-type'] || 'application/x-www-form-urlencoded';
+			options.body = (new URLSearchParams(body)).toString();
+		} else if (options.json) {
+			headers['content-type'] = headers['content-type'] || 'application/json';
+			options.body = JSON.stringify(body);
+		}
+
+		options.method = options.method ? options.method.toUpperCase() : 'POST';
+	}
+
+	if (!is.function(options.retry.retries)) {
+		const {retries} = options.retry;
+
+		options.retry.retries = (iteration, error) => {
+			if (iteration > retries) {
+				return 0;
+			}
+
+			if ((!error || !options.retry.errorCodes.has(error.code)) && (!options.retry.methods.has(error.method) || !options.retry.statusCodes.has(error.statusCode))) {
+				return 0;
+			}
+
+			if (Reflect.has(error, 'headers') && Reflect.has(error.headers, 'retry-after') && retryAfterStatusCodes.has(error.statusCode)) {
+				let after = Number(error.headers['retry-after']);
+				if (is.nan(after)) {
+					after = Date.parse(error.headers['retry-after']) - Date.now();
+				} else {
+					after *= 1000;
+				}
+
+				if (after > options.retry.maxRetryAfter) {
+					return 0;
+				}
+
+				return after;
+			}
+
+			if (error.statusCode === 413) {
+				return 0;
+			}
+
+			const noise = Math.random() * 100;
+			return ((2 ** (iteration - 1)) * 1000) + noise;
+		};
+	}
+
+	return options;
+};
+
+const reNormalize = options => normalize(urlLib.format(options), options);
+
+module.exports = normalize;
+module.exports.preNormalize = preNormalize;
+module.exports.reNormalize = reNormalize;
diff --git a/helloworld/node_modules/got/source/progress.js b/helloworld/node_modules/got/source/progress.js
new file mode 100755
index 0000000..666abcf
--- /dev/null
+++ b/helloworld/node_modules/got/source/progress.js
@@ -0,0 +1,96 @@
+'use strict';
+const {Transform} = require('stream');
+
+module.exports = {
+	download(response, emitter, downloadBodySize) {
+		let downloaded = 0;
+
+		return new Transform({
+			transform(chunk, encoding, callback) {
+				downloaded += chunk.length;
+
+				const percent = downloadBodySize ? downloaded / downloadBodySize : 0;
+
+				// Let `flush()` be responsible for emitting the last event
+				if (percent < 1) {
+					emitter.emit('downloadProgress', {
+						percent,
+						transferred: downloaded,
+						total: downloadBodySize
+					});
+				}
+
+				callback(null, chunk);
+			},
+
+			flush(callback) {
+				emitter.emit('downloadProgress', {
+					percent: 1,
+					transferred: downloaded,
+					total: downloadBodySize
+				});
+
+				callback();
+			}
+		});
+	},
+
+	upload(request, emitter, uploadBodySize) {
+		const uploadEventFrequency = 150;
+		let uploaded = 0;
+		let progressInterval;
+
+		emitter.emit('uploadProgress', {
+			percent: 0,
+			transferred: 0,
+			total: uploadBodySize
+		});
+
+		request.once('error', () => {
+			clearInterval(progressInterval);
+		});
+
+		request.once('response', () => {
+			clearInterval(progressInterval);
+
+			emitter.emit('uploadProgress', {
+				percent: 1,
+				transferred: uploaded,
+				total: uploadBodySize
+			});
+		});
+
+		request.once('socket', socket => {
+			const onSocketConnect = () => {
+				progressInterval = setInterval(() => {
+					const lastUploaded = uploaded;
+					/* istanbul ignore next: see #490 (occurs randomly!) */
+					const headersSize = request._header ? Buffer.byteLength(request._header) : 0;
+					uploaded = socket.bytesWritten - headersSize;
+
+					// Don't emit events with unchanged progress and
+					// prevent last event from being emitted, because
+					// it's emitted when `response` is emitted
+					if (uploaded === lastUploaded || uploaded === uploadBodySize) {
+						return;
+					}
+
+					emitter.emit('uploadProgress', {
+						percent: uploadBodySize ? uploaded / uploadBodySize : 0,
+						transferred: uploaded,
+						total: uploadBodySize
+					});
+				}, uploadEventFrequency);
+			};
+
+			/* istanbul ignore next: hard to test */
+			if (socket.connecting) {
+				socket.once('connect', onSocketConnect);
+			} else if (socket.writable) {
+				// The socket is being reused from pool,
+				// so the connect event will not be emitted
+				onSocketConnect();
+			}
+		});
+	}
+};
diff --git a/helloworld/node_modules/got/source/request-as-event-emitter.js b/helloworld/node_modules/got/source/request-as-event-emitter.js
new file mode 100755
index 0000000..79586af
--- /dev/null
+++ b/helloworld/node_modules/got/source/request-as-event-emitter.js
@@ -0,0 +1,312 @@
+'use strict';
+const {URL} = require('url'); // TODO: Use the `URL` global when targeting Node.js 10
+const util = require('util');
+const EventEmitter = require('events');
+const http = require('http');
+const https = require('https');
+const urlLib = require('url');
+const CacheableRequest = require('cacheable-request');
+const toReadableStream = require('to-readable-stream');
+const is = require('@sindresorhus/is');
+const timer = require('@szmarczak/http-timer');
+const timedOut = require('./utils/timed-out');
+const getBodySize = require('./utils/get-body-size');
+const getResponse = require('./get-response');
+const progress = require('./progress');
+const {CacheError, UnsupportedProtocolError, MaxRedirectsError, RequestError, TimeoutError} = require('./errors');
+const urlToOptions = require('./utils/url-to-options');
+
+const getMethodRedirectCodes = new Set([300, 301, 302, 303, 304, 305, 307, 308]);
+const allMethodRedirectCodes = new Set([300, 303, 307, 308]);
+
+module.exports = (options, input) => {
+	const emitter = new EventEmitter();
+	const redirects = [];
+	let currentRequest;
+	let requestUrl;
+	let redirectString;
+	let uploadBodySize;
+	let retryCount = 0;
+	let shouldAbort = false;
+
+	const setCookie = options.cookieJar ? util.promisify(options.cookieJar.setCookie.bind(options.cookieJar)) : null;
+	const getCookieString = options.cookieJar ? util.promisify(options.cookieJar.getCookieString.bind(options.cookieJar)) : null;
+	const agents = is.object(options.agent) ? options.agent : null;
+
+	const emitError = async error => {
+		try {
+			for (const hook of options.hooks.beforeError) {
+				// eslint-disable-next-line no-await-in-loop
+				error = await hook(error);
+			}
+
+			emitter.emit('error', error);
+		} catch (error2) {
+			emitter.emit('error', error2);
+		}
+	};
+
+	const get = async options => {
+		const currentUrl = redirectString || requestUrl;
+
+		if (options.protocol !== 'http:' && options.protocol !== 'https:') {
+			throw new UnsupportedProtocolError(options);
+		}
+
+		decodeURI(currentUrl);
+
+		let fn;
+		if (is.function(options.request)) {
+			fn = {request: options.request};
+		} else {
+			fn = options.protocol === 'https:' ? https : http;
+		}
+
+		if (agents) {
+			const protocolName = options.protocol === 'https:' ? 'https' : 'http';
+			options.agent = agents[protocolName] || options.agent;
+		}
+
+		/* istanbul ignore next: electron.net is broken */
+		if (options.useElectronNet && process.versions.electron) {
+			const r = ({x: require})['yx'.slice(1)]; // Trick webpack
+			const electron = r('electron');
+			fn = electron.net || electron.remote.net;
+		}
+
+		if (options.cookieJar) {
+			const cookieString = await getCookieString(currentUrl, {});
+
+			if (is.nonEmptyString(cookieString)) {
+				options.headers.cookie = cookieString;
+			}
+		}
+
+		let timings;
+		const handleResponse = async response => {
+			try {
+				/* istanbul ignore next: fixes https://github.com/electron/electron/blob/cbb460d47628a7a146adf4419ed48550a98b2923/lib/browser/api/net.js#L59-L65 */
+				if (options.useElectronNet) {
+					response = new Proxy(response, {
+						get: (target, name) => {
+							if (name === 'trailers' || name === 'rawTrailers') {
+								return [];
+							}
+
+							const value = target[name];
+							return is.function(value) ? value.bind(target) : value;
+						}
+					});
+				}
+
+				const {statusCode} = response;
+				response.url = currentUrl;
+				response.requestUrl = requestUrl;
+				response.retryCount = retryCount;
+				response.timings = timings;
+				response.redirectUrls = redirects;
+				response.request = {
+					gotOptions: options
+				};
+
+				const rawCookies = response.headers['set-cookie'];
+				if (options.cookieJar && rawCookies) {
+					await Promise.all(rawCookies.map(rawCookie => setCookie(rawCookie, response.url)));
+				}
+
+				if (options.followRedirect && 'location' in response.headers) {
+					if (allMethodRedirectCodes.has(statusCode) || (getMethodRedirectCodes.has(statusCode) && (options.method === 'GET' || options.method === 'HEAD'))) {
+						response.resume(); // We're being redirected, we don't care about the response.
+
+						if (statusCode === 303) {
+							// Server responded with "see other", indicating that the resource exists at another location,
+							// and the client should request it from that location via GET or HEAD.
+							options.method = 'GET';
+						}
+
+						if (redirects.length >= 10) {
+							throw new MaxRedirectsError(statusCode, redirects, options);
+						}
+
+						// Handles invalid URLs. See https://github.com/sindresorhus/got/issues/604
+						const redirectBuffer = Buffer.from(response.headers.location, 'binary').toString();
+						const redirectURL = new URL(redirectBuffer, currentUrl);
+						redirectString = redirectURL.toString();
+
+						redirects.push(redirectString);
+
+						const redirectOptions = {
+							...options,
+							...urlToOptions(redirectURL)
+						};
+
+						for (const hook of options.hooks.beforeRedirect) {
+							// eslint-disable-next-line no-await-in-loop
+							await hook(redirectOptions);
+						}
+
+						emitter.emit('redirect', response, redirectOptions);
+
+						await get(redirectOptions);
+						return;
+					}
+				}
+
+				getResponse(response, options, emitter);
+			} catch (error) {
+				emitError(error);
+			}
+		};
+
+		const handleRequest = request => {
+			if (shouldAbort) {
+				request.once('error', () => {});
+				request.abort();
+				return;
+			}
+
+			currentRequest = request;
+
+			request.once('error', error => {
+				if (request.aborted) {
+					return;
+				}
+
+				if (error instanceof timedOut.TimeoutError) {
+					error = new TimeoutError(error, options);
+				} else {
+					error = new RequestError(error, options);
+				}
+
+				if (emitter.retry(error) === false) {
+					emitError(error);
+				}
+			});
+
+			timings = timer(request);
+
+			progress.upload(request, emitter, uploadBodySize);
+
+			if (options.gotTimeout) {
+				timedOut(request, options.gotTimeout, options);
+			}
+
+			emitter.emit('request', request);
+
+			const uploadComplete = () => {
+				request.emit('upload-complete');
+			};
+
+			try {
+				if (is.nodeStream(options.body)) {
+					options.body.once('end', uploadComplete);
+					options.body.pipe(request);
+					options.body = undefined;
+				} else if (options.body) {
+					request.end(options.body, uploadComplete);
+				} else if (input && (options.method === 'POST' || options.method === 'PUT' || options.method === 'PATCH')) {
+					input.once('end', uploadComplete);
+					input.pipe(request);
+				} else {
+					request.end(uploadComplete);
+				}
+			} catch (error) {
+				emitError(new RequestError(error, options));
+			}
+		};
+
+		if (options.cache) {
+			const cacheableRequest = new CacheableRequest(fn.request, options.cache);
+			const cacheRequest = cacheableRequest(options, handleResponse);
+
+			cacheRequest.once('error', error => {
+				if (error instanceof CacheableRequest.RequestError) {
+					emitError(new RequestError(error, options));
+				} else {
+					emitError(new CacheError(error, options));
+				}
+			});
+
+			cacheRequest.once('request', handleRequest);
+		} else {
+			// Catches errors thrown by calling fn.request(...)
+			try {
+				handleRequest(fn.request(options, handleResponse));
+			} catch (error) {
+				emitError(new RequestError(error, options));
+			}
+		}
+	};
+
+	emitter.retry = error => {
+		let backoff;
+
+		try {
+			backoff = options.retry.retries(++retryCount, error);
+		} catch (error2) {
+			emitError(error2);
+			return;
+		}
+
+		if (backoff) {
+			const retry = async options => {
+				try {
+					for (const hook of options.hooks.beforeRetry) {
+						// eslint-disable-next-line no-await-in-loop
+						await hook(options, error, retryCount);
+					}
+
+					await get(options);
+				} catch (error) {
+					emitError(error);
+				}
+			};
+
+			setTimeout(retry, backoff, {...options, forceRefresh: true});
+			return true;
+		}
+
+		return false;
+	};
+
+	emitter.abort = () => {
+		if (currentRequest) {
+			currentRequest.once('error', () => {});
+			currentRequest.abort();
+		} else {
+			shouldAbort = true;
+		}
+	};
+
+	setImmediate(async () => {
+		try {
+			// Convert buffer to stream to receive upload progress events (#322)
+			const {body} = options;
+			if (is.buffer(body)) {
+				options.body = toReadableStream(body);
+				uploadBodySize = body.length;
+			} else {
+				uploadBodySize = await getBodySize(options);
+			}
+
+			if (is.undefined(options.headers['content-length']) && is.undefined(options.headers['transfer-encoding'])) {
+				if ((uploadBodySize > 0 || options.method === 'PUT') && !is.null(uploadBodySize)) {
+					options.headers['content-length'] = uploadBodySize;
+				}
+			}
+
+			for (const hook of options.hooks.beforeRequest) {
+				// eslint-disable-next-line no-await-in-loop
+				await hook(options);
+			}
+
+			requestUrl = options.href || (new URL(options.path, urlLib.format(options))).toString();
+
+			await get(options);
+		} catch (error) {
+			emitError(error);
+		}
+	});
+
+	return emitter;
+};
diff --git a/helloworld/node_modules/got/source/utils/deep-freeze.js b/helloworld/node_modules/got/source/utils/deep-freeze.js
new file mode 100755
index 0000000..5052b71
--- /dev/null
+++ b/helloworld/node_modules/got/source/utils/deep-freeze.js
@@ -0,0 +1,12 @@
+'use strict';
+const is = require('@sindresorhus/is');
+
+module.exports = function deepFreeze(object) {
+	for (const [key, value] of Object.entries(object)) {
+		if (is.plainObject(value) || is.array(value)) {
+			deepFreeze(object[key]);
+		}
+	}
+
+	return Object.freeze(object);
+};
diff --git a/helloworld/node_modules/got/source/utils/get-body-size.js b/helloworld/node_modules/got/source/utils/get-body-size.js
new file mode 100755
index 0000000..0df5af2
--- /dev/null
+++ b/helloworld/node_modules/got/source/utils/get-body-size.js
@@ -0,0 +1,32 @@
+'use strict';
+const fs = require('fs');
+const util = require('util');
+const is = require('@sindresorhus/is');
+const isFormData = require('./is-form-data');
+
+module.exports = async options => {
+	const {body} = options;
+
+	if (options.headers['content-length']) {
+		return Number(options.headers['content-length']);
+	}
+
+	if (!body && !options.stream) {
+		return 0;
+	}
+
+	if (is.string(body)) {
+		return Buffer.byteLength(body);
+	}
+
+	if (isFormData(body)) {
+		return util.promisify(body.getLength.bind(body))();
+	}
+
+	if (body instanceof fs.ReadStream) {
+		const {size} = await util.promisify(fs.stat)(body.path);
+		return size;
+	}
+
+	return null;
+};
diff --git a/helloworld/node_modules/got/source/utils/is-form-data.js b/helloworld/node_modules/got/source/utils/is-form-data.js
new file mode 100755
index 0000000..0033618
--- /dev/null
+++ b/helloworld/node_modules/got/source/utils/is-form-data.js
@@ -0,0 +1,4 @@
+'use strict';
+const is = require('@sindresorhus/is');
+
+module.exports = body => is.nodeStream(body) && is.function(body.getBoundary);
diff --git a/helloworld/node_modules/got/source/utils/timed-out.js b/helloworld/node_modules/got/source/utils/timed-out.js
new file mode 100755
index 0000000..33611a7
--- /dev/null
+++ b/helloworld/node_modules/got/source/utils/timed-out.js
@@ -0,0 +1,160 @@
+'use strict';
+const net = require('net');
+
+class TimeoutError extends Error {
+	constructor(threshold, event) {
+		super(`Timeout awaiting '${event}' for ${threshold}ms`);
+		this.name = 'TimeoutError';
+		this.code = 'ETIMEDOUT';
+		this.event = event;
+	}
+}
+
+const reentry = Symbol('reentry');
+
+const noop = () => {};
+
+module.exports = (request, delays, options) => {
+	/* istanbul ignore next: this makes sure timed-out isn't called twice */
+	if (request[reentry]) {
+		return;
+	}
+
+	request[reentry] = true;
+
+	let stopNewTimeouts = false;
+
+	const addTimeout = (delay, callback, ...args) => {
+		// An error had been thrown before. Going further would result in uncaught errors.
+		// See https://github.com/sindresorhus/got/issues/631#issuecomment-435675051
+		if (stopNewTimeouts) {
+			return noop;
+		}
+
+		// Event loop order is timers, poll, immediates.
+		// The timed event may emit during the current tick poll phase, so
+		// defer calling the handler until the poll phase completes.
+		let immediate;
+		const timeout = setTimeout(() => {
+			immediate = setImmediate(callback, delay, ...args);
+			/* istanbul ignore next: added in node v9.7.0 */
+			if (immediate.unref) {
+				immediate.unref();
+			}
+		}, delay);
+
+		/* istanbul ignore next: in order to support electron renderer */
+		if (timeout.unref) {
+			timeout.unref();
+		}
+
+		const cancel = () => {
+			clearTimeout(timeout);
+			clearImmediate(immediate);
+		};
+
+		cancelers.push(cancel);
+
+		return cancel;
+	};
+
+	const {host, hostname} = options;
+	const timeoutHandler = (delay, event) => {
+		request.emit('error', new TimeoutError(delay, event));
+		request.once('error', () => {}); // Ignore the `socket hung up` error made by request.abort()
+
+		request.abort();
+	};
+
+	const cancelers = [];
+	const cancelTimeouts = () => {
+		stopNewTimeouts = true;
+		cancelers.forEach(cancelTimeout => cancelTimeout());
+	};
+
+	request.once('error', cancelTimeouts);
+	request.once('response', response => {
+		response.once('end', cancelTimeouts);
+	});
+
+	if (delays.request !== undefined) {
+		addTimeout(delays.request, timeoutHandler, 'request');
+	}
+
+	if (delays.socket !== undefined) {
+		const socketTimeoutHandler = () => {
+			timeoutHandler(delays.socket, 'socket');
+		};
+
+		request.setTimeout(delays.socket, socketTimeoutHandler);
+
+		// `request.setTimeout(0)` causes a memory leak.
+		// We can just remove the listener and forget about the timer - it's unreffed.
+		// See https://github.com/sindresorhus/got/issues/690
+		cancelers.push(() => request.removeListener('timeout', socketTimeoutHandler));
+	}
+
+	if (delays.lookup !== undefined && !request.socketPath && !net.isIP(hostname || host)) {
+		request.once('socket', socket => {
+			/* istanbul ignore next: hard to test */
+			if (socket.connecting) {
+				const cancelTimeout = addTimeout(delays.lookup, timeoutHandler, 'lookup');
+				socket.once('lookup', cancelTimeout);
+			}
+		});
+	}
+
+	if (delays.connect !== undefined) {
+		request.once('socket', socket => {
+			/* istanbul ignore next: hard to test */
+			if (socket.connecting) {
+				const timeConnect = () => addTimeout(delays.connect, timeoutHandler, 'connect');
+
+				if (request.socketPath || net.isIP(hostname || host)) {
+					socket.once('connect', timeConnect());
+				} else {
+					socket.once('lookup', error => {
+						if (error === null) {
+							socket.once('connect', timeConnect());
+						}
+					});
+				}
+			}
+		});
+	}
+
+	if (delays.secureConnect !== undefined && options.protocol === 'https:') {
+		request.once('socket', socket => {
+			/* istanbul ignore next: hard to test */
+			if (socket.connecting) {
+				socket.once('connect', () => {
+					const cancelTimeout = addTimeout(delays.secureConnect, timeoutHandler, 'secureConnect');
+					socket.once('secureConnect', cancelTimeout);
+				});
+			}
+		});
+	}
+
+	if (delays.send !== undefined) {
+		request.once('socket', socket => {
+			const timeRequest = () => addTimeout(delays.send, timeoutHandler, 'send');
+			/* istanbul ignore next: hard to test */
+			if (socket.connecting) {
+				socket.once('connect', () => {
+					request.once('upload-complete', timeRequest());
+				});
+			} else {
+				request.once('upload-complete', timeRequest());
+			}
+		});
+	}
+
+	if (delays.response !== undefined) {
+		request.once('upload-complete', () => {
+			const cancelTimeout = addTimeout(delays.response, timeoutHandler, 'response');
+			request.once('response', cancelTimeout);
+		});
+	}
+};
+
+module.exports.TimeoutError = TimeoutError;
diff --git a/helloworld/node_modules/got/source/utils/url-to-options.js b/helloworld/node_modules/got/source/utils/url-to-options.js
new file mode 100755
index 0000000..848ef30
--- /dev/null
+++ b/helloworld/node_modules/got/source/utils/url-to-options.js
@@ -0,0 +1,25 @@
+'use strict';
+const is = require('@sindresorhus/is');
+
+module.exports = url => {
+	const options = {
+		protocol: url.protocol,
+		hostname: url.hostname.startsWith('[') ? url.hostname.slice(1, -1) : url.hostname,
+		hash: url.hash,
+		search: url.search,
+		pathname: url.pathname,
+		href: url.href
+	};
+
+	if (is.string(url.port) && url.port.length > 0) {
+		options.port = Number(url.port);
+	}
+
+	if (url.username || url.password) {
+		options.auth = `${url.username}:${url.password}`;
+	}
+
+	options.path = is.null(url.search) ? url.pathname : `${url.pathname}${url.search}`;
+
+	return options;
+};
diff --git a/helloworld/node_modules/graceful-fs/LICENSE b/helloworld/node_modules/graceful-fs/LICENSE
new file mode 100755
index 0000000..9d2c803
--- /dev/null
+++ b/helloworld/node_modules/graceful-fs/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter, Ben Noordhuis, and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/helloworld/node_modules/graceful-fs/README.md b/helloworld/node_modules/graceful-fs/README.md
new file mode 100755
index 0000000..5273a50
--- /dev/null
+++ b/helloworld/node_modules/graceful-fs/README.md
@@ -0,0 +1,133 @@
+# graceful-fs
+
+graceful-fs functions as a drop-in replacement for the fs module,
+making various improvements.
+
+The improvements are meant to normalize behavior across different
+platforms and environments, and to make filesystem access more
+resilient to errors.
+
+## Improvements over [fs module](https://nodejs.org/api/fs.html)
+
+* Queues up `open` and `readdir` calls, and retries them once
+  something closes if there is an EMFILE error from too many file
+  descriptors.
+* fixes `lchmod` for Node versions prior to 0.6.2.
+* implements `fs.lutimes` if possible. Otherwise it becomes a noop.
+* ignores `EINVAL` and `EPERM` errors in `chown`, `fchown` or
+  `lchown` if the user isn't root.
+* makes `lchmod` and `lchown` become noops, if not available.
+* retries reading a file if `read` results in EAGAIN error.
+
+On Windows, it retries renaming a file for up to one second if `EACCESS`
+or `EPERM` error occurs, likely because antivirus software has locked
+the directory.
+
+## USAGE
+
+```javascript
+// use just like fs
+var fs = require('graceful-fs')
+
+// now go and do stuff with it...
+fs.readFileSync('some-file-or-whatever')
+```
+
+## Global Patching
+
+If you want to patch the global fs module (or any other fs-like
+module) you can do this:
+
+```javascript
+// Make sure to read the caveat below.
+var realFs = require('fs')
+var gracefulFs = require('graceful-fs')
+gracefulFs.gracefulify(realFs)
+```
+
+This should only ever be done at the top-level application layer, in
+order to delay on EMFILE errors from any fs-using dependencies.  You
+should **not** do this in a library, because it can cause unexpected
+delays in other parts of the program.
+
+## Changes
+
+This module is fairly stable at this point, and used by a lot of
+things.  That being said, because it implements a subtle behavior
+change in a core part of the node API, even modest changes can be
+extremely breaking, and the versioning is thus biased towards
+bumping the major when in doubt.
+
+The main change between major versions has been switching between
+providing a fully-patched `fs` module vs monkey-patching the node core
+builtin, and the approach by which a non-monkey-patched `fs` was
+created.
+
+The goal is to trade `EMFILE` errors for slower fs operations.  So, if
+you try to open a zillion files, rather than crashing, `open`
+operations will be queued up and wait for something else to `close`.
+
+There are advantages to each approach.  Monkey-patching the fs means
+that no `EMFILE` errors can possibly occur anywhere in your
+application, because everything is using the same core `fs` module,
+which is patched.  However, it can also obviously cause undesirable
+side-effects, especially if the module is loaded multiple times.
+
+Implementing a separate-but-identical patched `fs` module is more
+surgical (and doesn't run the risk of patching multiple times), but
+also imposes the challenge of keeping in sync with the core module.
+
+The current approach loads the `fs` module, and then creates a
+lookalike object that has all the same methods, except a few that are
+patched.  It is safe to use in all versions of Node from 0.8 through
+7.0.
+
+### v4
+
+* Do not monkey-patch the fs module.  This module may now be used as a
+  drop-in dep, and users can opt into monkey-patching the fs builtin
+  if their app requires it.
+
+### v3
+
+* Monkey-patch fs, because the eval approach no longer works on recent
+  node.
+* fixed possible type-error throw if rename fails on windows
+* verify that we *never* get EMFILE errors
+* Ignore ENOSYS from chmod/chown
+* clarify that graceful-fs must be used as a drop-in
+
+### v2.1.0
+
+* Use eval rather than monkey-patching fs.
+* readdir: Always sort the results
+* win32: requeue a file if error has an OK status
+
+### v2.0
+
+* A return to monkey patching
+* wrap process.cwd
+
+### v1.1
+
+* wrap readFile
+* Wrap fs.writeFile.
+* readdir protection
+* Don't clobber the fs builtin
+* Handle fs.read EAGAIN errors by trying again
+* Expose the curOpen counter
+* No-op lchown/lchmod if not implemented
+* fs.rename patch only for win32
+* Patch fs.rename to handle AV software on Windows
+* Close #4 Chown should not fail on einval or eperm if non-root
+* Fix isaacs/fstream#1 Only wrap fs one time
+* Fix #3 Start at 1024 max files, then back off on EMFILE
+* lutimes that doens't blow up on Linux
+* A full on-rewrite using a queue instead of just swallowing the EMFILE error
+* Wrap Read/Write streams as well
+
+### 1.0
+
+* Update engines for node 0.6
+* Be lstat-graceful on Windows
+* first
diff --git a/helloworld/node_modules/graceful-fs/clone.js b/helloworld/node_modules/graceful-fs/clone.js
new file mode 100755
index 0000000..028356c
--- /dev/null
+++ b/helloworld/node_modules/graceful-fs/clone.js
@@ -0,0 +1,19 @@
+'use strict'
+
+module.exports = clone
+
+function clone (obj) {
+  if (obj === null || typeof obj !== 'object')
+    return obj
+
+  if (obj instanceof Object)
+    var copy = { __proto__: obj.__proto__ }
+  else
+    var copy = Object.create(null)
+
+  Object.getOwnPropertyNames(obj).forEach(function (key) {
+    Object.defineProperty(copy, key, Object.getOwnPropertyDescriptor(obj, key))
+  })
+
+  return copy
+}
diff --git a/helloworld/node_modules/graceful-fs/graceful-fs.js b/helloworld/node_modules/graceful-fs/graceful-fs.js
new file mode 100755
index 0000000..ac20675
--- /dev/null
+++ b/helloworld/node_modules/graceful-fs/graceful-fs.js
@@ -0,0 +1,279 @@
+var fs = require('fs')
+var polyfills = require('./polyfills.js')
+var legacy = require('./legacy-streams.js')
+var clone = require('./clone.js')
+
+var queue = []
+
+var util = require('util')
+
+function noop () {}
+
+var debug = noop
+if (util.debuglog)
+  debug = util.debuglog('gfs4')
+else if (/\bgfs4\b/i.test(process.env.NODE_DEBUG || ''))
+  debug = function() {
+    var m = util.format.apply(util, arguments)
+    m = 'GFS4: ' + m.split(/\n/).join('\nGFS4: ')
+    console.error(m)
+  }
+
+if (/\bgfs4\b/i.test(process.env.NODE_DEBUG || '')) {
+  process.on('exit', function() {
+    debug(queue)
+    require('assert').equal(queue.length, 0)
+  })
+}
+
+module.exports = patch(clone(fs))
+if (process.env.TEST_GRACEFUL_FS_GLOBAL_PATCH && !fs.__patched) {
+    module.exports = patch(fs)
+    fs.__patched = true;
+}
+
+// Always patch fs.close/closeSync, because we want to
+// retry() whenever a close happens *anywhere* in the program.
+// This is essential when multiple graceful-fs instances are
+// in play at the same time.
+module.exports.close = (function (fs$close) { return function (fd, cb) {
+  return fs$close.call(fs, fd, function (err) {
+    if (!err)
+      retry()
+
+    if (typeof cb === 'function')
+      cb.apply(this, arguments)
+  })
+}})(fs.close)
+
+module.exports.closeSync = (function (fs$closeSync) { return function (fd) {
+  // Note that graceful-fs also retries when fs.closeSync() fails.
+  // Looks like a bug to me, although it's probably a harmless one.
+  var rval = fs$closeSync.apply(fs, arguments)
+  retry()
+  return rval
+}})(fs.closeSync)
+
+// Only patch fs once, otherwise we'll run into a memory leak if
+// graceful-fs is loaded multiple times, such as in test environments that
+// reset the loaded modules between tests.
+// We look for the string `graceful-fs` from the comment above. This
+// way we are not adding any extra properties and it will detect if older
+// versions of graceful-fs are installed.
+if (!/\bgraceful-fs\b/.test(fs.closeSync.toString())) {
+  fs.closeSync = module.exports.closeSync;
+  fs.close = module.exports.close;
+}
+
+function patch (fs) {
+  // Everything that references the open() function needs to be in here
+  polyfills(fs)
+  fs.gracefulify = patch
+  fs.FileReadStream = ReadStream;  // Legacy name.
+  fs.FileWriteStream = WriteStream;  // Legacy name.
+  fs.createReadStream = createReadStream
+  fs.createWriteStream = createWriteStream
+  var fs$readFile = fs.readFile
+  fs.readFile = readFile
+  function readFile (path, options, cb) {
+    if (typeof options === 'function')
+      cb = options, options = null
+
+    return go$readFile(path, options, cb)
+
+    function go$readFile (path, options, cb) {
+      return fs$readFile(path, options, function (err) {
+        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
+          enqueue([go$readFile, [path, options, cb]])
+        else {
+          if (typeof cb === 'function')
+            cb.apply(this, arguments)
+          retry()
+        }
+      })
+    }
+  }
+
+  var fs$writeFile = fs.writeFile
+  fs.writeFile = writeFile
+  function writeFile (path, data, options, cb) {
+    if (typeof options === 'function')
+      cb = options, options = null
+
+    return go$writeFile(path, data, options, cb)
+
+    function go$writeFile (path, data, options, cb) {
+      return fs$writeFile(path, data, options, function (err) {
+        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
+          enqueue([go$writeFile, [path, data, options, cb]])
+        else {
+          if (typeof cb === 'function')
+            cb.apply(this, arguments)
+          retry()
+        }
+      })
+    }
+  }
+
+  var fs$appendFile = fs.appendFile
+  if (fs$appendFile)
+    fs.appendFile = appendFile
+  function appendFile (path, data, options, cb) {
+    if (typeof options === 'function')
+      cb = options, options = null
+
+    return go$appendFile(path, data, options, cb)
+
+    function go$appendFile (path, data, options, cb) {
+      return fs$appendFile(path, data, options, function (err) {
+        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
+          enqueue([go$appendFile, [path, data, options, cb]])
+        else {
+          if (typeof cb === 'function')
+            cb.apply(this, arguments)
+          retry()
+        }
+      })
+    }
+  }
+
+  var fs$readdir = fs.readdir
+  fs.readdir = readdir
+  function readdir (path, options, cb) {
+    var args = [path]
+    if (typeof options !== 'function') {
+      args.push(options)
+    } else {
+      cb = options
+    }
+    args.push(go$readdir$cb)
+
+    return go$readdir(args)
+
+    function go$readdir$cb (err, files) {
+      if (files && files.sort)
+        files.sort()
+
+      if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
+        enqueue([go$readdir, [args]])
+
+      else {
+        if (typeof cb === 'function')
+          cb.apply(this, arguments)
+        retry()
+      }
+    }
+  }
+
+  function go$readdir (args) {
+    return fs$readdir.apply(fs, args)
+  }
+
+  if (process.version.substr(0, 4) === 'v0.8') {
+    var legStreams = legacy(fs)
+    ReadStream = legStreams.ReadStream
+    WriteStream = legStreams.WriteStream
+  }
+
+  var fs$ReadStream = fs.ReadStream
+  if (fs$ReadStream) {
+    ReadStream.prototype = Object.create(fs$ReadStream.prototype)
+    ReadStream.prototype.open = ReadStream$open
+  }
+
+  var fs$WriteStream = fs.WriteStream
+  if (fs$WriteStream) {
+    WriteStream.prototype = Object.create(fs$WriteStream.prototype)
+    WriteStream.prototype.open = WriteStream$open
+  }
+
+  fs.ReadStream = ReadStream
+  fs.WriteStream = WriteStream
+
+  function ReadStream (path, options) {
+    if (this instanceof ReadStream)
+      return fs$ReadStream.apply(this, arguments), this
+    else
+      return ReadStream.apply(Object.create(ReadStream.prototype), arguments)
+  }
+
+  function ReadStream$open () {
+    var that = this
+    open(that.path, that.flags, that.mode, function (err, fd) {
+      if (err) {
+        if (that.autoClose)
+          that.destroy()
+
+        that.emit('error', err)
+      } else {
+        that.fd = fd
+        that.emit('open', fd)
+        that.read()
+      }
+    })
+  }
+
+  function WriteStream (path, options) {
+    if (this instanceof WriteStream)
+      return fs$WriteStream.apply(this, arguments), this
+    else
+      return WriteStream.apply(Object.create(WriteStream.prototype), arguments)
+  }
+
+  function WriteStream$open () {
+    var that = this
+    open(that.path, that.flags, that.mode, function (err, fd) {
+      if (err) {
+        that.destroy()
+        that.emit('error', err)
+      } else {
+        that.fd = fd
+        that.emit('open', fd)
+      }
+    })
+  }
+
+  function createReadStream (path, options) {
+    return new ReadStream(path, options)
+  }
+
+  function createWriteStream (path, options) {
+    return new WriteStream(path, options)
+  }
+
+  var fs$open = fs.open
+  fs.open = open
+  function open (path, flags, mode, cb) {
+    if (typeof mode === 'function')
+      cb = mode, mode = null
+
+    return go$open(path, flags, mode, cb)
+
+    function go$open (path, flags, mode, cb) {
+      return fs$open(path, flags, mode, function (err, fd) {
+        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
+          enqueue([go$open, [path, flags, mode, cb]])
+        else {
+          if (typeof cb === 'function')
+            cb.apply(this, arguments)
+          retry()
+        }
+      })
+    }
+  }
+
+  return fs
+}
+
+function enqueue (elem) {
+  debug('ENQUEUE', elem[0].name, elem[1])
+  queue.push(elem)
+}
+
+function retry () {
+  var elem = queue.shift()
+  if (elem) {
+    debug('RETRY', elem[0].name, elem[1])
+    elem[0].apply(null, elem[1])
+  }
+}
diff --git a/helloworld/node_modules/graceful-fs/legacy-streams.js b/helloworld/node_modules/graceful-fs/legacy-streams.js
new file mode 100755
index 0000000..d617b50
--- /dev/null
+++ b/helloworld/node_modules/graceful-fs/legacy-streams.js
@@ -0,0 +1,118 @@
+var Stream = require('stream').Stream
+
+module.exports = legacy
+
+function legacy (fs) {
+  return {
+    ReadStream: ReadStream,
+    WriteStream: WriteStream
+  }
+
+  function ReadStream (path, options) {
+    if (!(this instanceof ReadStream)) return new ReadStream(path, options);
+
+    Stream.call(this);
+
+    var self = this;
+
+    this.path = path;
+    this.fd = null;
+    this.readable = true;
+    this.paused = false;
+
+    this.flags = 'r';
+    this.mode = 438; /*=0666*/
+    this.bufferSize = 64 * 1024;
+
+    options = options || {};
+
+    // Mixin options into this
+    var keys = Object.keys(options);
+    for (var index = 0, length = keys.length; index < length; index++) {
+      var key = keys[index];
+      this[key] = options[key];
+    }
+
+    if (this.encoding) this.setEncoding(this.encoding);
+
+    if (this.start !== undefined) {
+      if ('number' !== typeof this.start) {
+        throw TypeError('start must be a Number');
+      }
+      if (this.end === undefined) {
+        this.end = Infinity;
+      } else if ('number' !== typeof this.end) {
+        throw TypeError('end must be a Number');
+      }
+
+      if (this.start > this.end) {
+        throw new Error('start must be <= end');
+      }
+
+      this.pos = this.start;
+    }
+
+    if (this.fd !== null) {
+      process.nextTick(function() {
+        self._read();
+      });
+      return;
+    }
+
+    fs.open(this.path, this.flags, this.mode, function (err, fd) {
+      if (err) {
+        self.emit('error', err);
+        self.readable = false;
+        return;
+      }
+
+      self.fd = fd;
+      self.emit('open', fd);
+      self._read();
+    })
+  }
+
+  function WriteStream (path, options) {
+    if (!(this instanceof WriteStream)) return new WriteStream(path, options);
+
+    Stream.call(this);
+
+    this.path = path;
+    this.fd = null;
+    this.writable = true;
+
+    this.flags = 'w';
+    this.encoding = 'binary';
+    this.mode = 438; /*=0666*/
+    this.bytesWritten = 0;
+
+    options = options || {};
+
+    // Mixin options into this
+    var keys = Object.keys(options);
+    for (var index = 0, length = keys.length; index < length; index++) {
+      var key = keys[index];
+      this[key] = options[key];
+    }
+
+    if (this.start !== undefined) {
+      if ('number' !== typeof this.start) {
+        throw TypeError('start must be a Number');
+      }
+      if (this.start < 0) {
+        throw new Error('start must be >= zero');
+      }
+
+      this.pos = this.start;
+    }
+
+    this.busy = false;
+    this._queue = [];
+
+    if (this.fd === null) {
+      this._open = fs.open;
+      this._queue.push([this._open, this.path, this.flags, this.mode, undefined]);
+      this.flush();
+    }
+  }
+}
diff --git a/helloworld/node_modules/graceful-fs/polyfills.js b/helloworld/node_modules/graceful-fs/polyfills.js
new file mode 100755
index 0000000..b964ed0
--- /dev/null
+++ b/helloworld/node_modules/graceful-fs/polyfills.js
@@ -0,0 +1,329 @@
+var constants = require('constants')
+
+var origCwd = process.cwd
+var cwd = null
+
+var platform = process.env.GRACEFUL_FS_PLATFORM || process.platform
+
+process.cwd = function() {
+  if (!cwd)
+    cwd = origCwd.call(process)
+  return cwd
+}
+try {
+  process.cwd()
+} catch (er) {}
+
+var chdir = process.chdir
+process.chdir = function(d) {
+  cwd = null
+  chdir.call(process, d)
+}
+
+module.exports = patch
+
+function patch (fs) {
+  // (re-)implement some things that are known busted or missing.
+
+  // lchmod, broken prior to 0.6.2
+  // back-port the fix here.
+  if (constants.hasOwnProperty('O_SYMLINK') &&
+      process.version.match(/^v0\.6\.[0-2]|^v0\.5\./)) {
+    patchLchmod(fs)
+  }
+
+  // lutimes implementation, or no-op
+  if (!fs.lutimes) {
+    patchLutimes(fs)
+  }
+
+  // https://github.com/isaacs/node-graceful-fs/issues/4
+  // Chown should not fail on einval or eperm if non-root.
+  // It should not fail on enosys ever, as this just indicates
+  // that a fs doesn't support the intended operation.
+
+  fs.chown = chownFix(fs.chown)
+  fs.fchown = chownFix(fs.fchown)
+  fs.lchown = chownFix(fs.lchown)
+
+  fs.chmod = chmodFix(fs.chmod)
+  fs.fchmod = chmodFix(fs.fchmod)
+  fs.lchmod = chmodFix(fs.lchmod)
+
+  fs.chownSync = chownFixSync(fs.chownSync)
+  fs.fchownSync = chownFixSync(fs.fchownSync)
+  fs.lchownSync = chownFixSync(fs.lchownSync)
+
+  fs.chmodSync = chmodFixSync(fs.chmodSync)
+  fs.fchmodSync = chmodFixSync(fs.fchmodSync)
+  fs.lchmodSync = chmodFixSync(fs.lchmodSync)
+
+  fs.stat = statFix(fs.stat)
+  fs.fstat = statFix(fs.fstat)
+  fs.lstat = statFix(fs.lstat)
+
+  fs.statSync = statFixSync(fs.statSync)
+  fs.fstatSync = statFixSync(fs.fstatSync)
+  fs.lstatSync = statFixSync(fs.lstatSync)
+
+  // if lchmod/lchown do not exist, then make them no-ops
+  if (!fs.lchmod) {
+    fs.lchmod = function (path, mode, cb) {
+      if (cb) process.nextTick(cb)
+    }
+    fs.lchmodSync = function () {}
+  }
+  if (!fs.lchown) {
+    fs.lchown = function (path, uid, gid, cb) {
+      if (cb) process.nextTick(cb)
+    }
+    fs.lchownSync = function () {}
+  }
+
+  // on Windows, A/V software can lock the directory, causing this
+  // to fail with an EACCES or EPERM if the directory contains newly
+  // created files.  Try again on failure, for up to 60 seconds.
+
+  // Set the timeout this long because some Windows Anti-Virus, such as Parity
+  // bit9, may lock files for up to a minute, causing npm package install
+  // failures. Also, take care to yield the scheduler. Windows scheduling gives
+  // CPU to a busy looping process, which can cause the program causing the lock
+  // contention to be starved of CPU by node, so the contention doesn't resolve.
+  if (platform === "win32") {
+    fs.rename = (function (fs$rename) { return function (from, to, cb) {
+      var start = Date.now()
+      var backoff = 0;
+      fs$rename(from, to, function CB (er) {
+        if (er
+            && (er.code === "EACCES" || er.code === "EPERM")
+            && Date.now() - start < 60000) {
+          setTimeout(function() {
+            fs.stat(to, function (stater, st) {
+              if (stater && stater.code === "ENOENT")
+                fs$rename(from, to, CB);
+              else
+                cb(er)
+            })
+          }, backoff)
+          if (backoff < 100)
+            backoff += 10;
+          return;
+        }
+        if (cb) cb(er)
+      })
+    }})(fs.rename)
+  }
+
+  // if read() returns EAGAIN, then just try it again.
+  fs.read = (function (fs$read) { return function (fd, buffer, offset, length, position, callback_) {
+    var callback
+    if (callback_ && typeof callback_ === 'function') {
+      var eagCounter = 0
+      callback = function (er, _, __) {
+        if (er && er.code === 'EAGAIN' && eagCounter < 10) {
+          eagCounter ++
+          return fs$read.call(fs, fd, buffer, offset, length, position, callback)
+        }
+        callback_.apply(this, arguments)
+      }
+    }
+    return fs$read.call(fs, fd, buffer, offset, length, position, callback)
+  }})(fs.read)
+
+  fs.readSync = (function (fs$readSync) { return function (fd, buffer, offset, length, position) {
+    var eagCounter = 0
+    while (true) {
+      try {
+        return fs$readSync.call(fs, fd, buffer, offset, length, position)
+      } catch (er) {
+        if (er.code === 'EAGAIN' && eagCounter < 10) {
+          eagCounter ++
+          continue
+        }
+        throw er
+      }
+    }
+  }})(fs.readSync)
+
+  function patchLchmod (fs) {
+    fs.lchmod = function (path, mode, callback) {
+      fs.open( path
+             , constants.O_WRONLY | constants.O_SYMLINK
+             , mode
+             , function (err, fd) {
+        if (err) {
+          if (callback) callback(err)
+          return
+        }
+        // prefer to return the chmod error, if one occurs,
+        // but still try to close, and report closing errors if they occur.
+        fs.fchmod(fd, mode, function (err) {
+          fs.close(fd, function(err2) {
+            if (callback) callback(err || err2)
+          })
+        })
+      })
+    }
+
+    fs.lchmodSync = function (path, mode) {
+      var fd = fs.openSync(path, constants.O_WRONLY | constants.O_SYMLINK, mode)
+
+      // prefer to return the chmod error, if one occurs,
+      // but still try to close, and report closing errors if they occur.
+      var threw = true
+      var ret
+      try {
+        ret = fs.fchmodSync(fd, mode)
+        threw = false
+      } finally {
+        if (threw) {
+          try {
+            fs.closeSync(fd)
+          } catch (er) {}
+        } else {
+          fs.closeSync(fd)
+        }
+      }
+      return ret
+    }
+  }
+
+  function patchLutimes (fs) {
+    if (constants.hasOwnProperty("O_SYMLINK")) {
+      fs.lutimes = function (path, at, mt, cb) {
+        fs.open(path, constants.O_SYMLINK, function (er, fd) {
+          if (er) {
+            if (cb) cb(er)
+            return
+          }
+          fs.futimes(fd, at, mt, function (er) {
+            fs.close(fd, function (er2) {
+              if (cb) cb(er || er2)
+            })
+          })
+        })
+      }
+
+      fs.lutimesSync = function (path, at, mt) {
+        var fd = fs.openSync(path, constants.O_SYMLINK)
+        var ret
+        var threw = true
+        try {
+          ret = fs.futimesSync(fd, at, mt)
+          threw = false
+        } finally {
+          if (threw) {
+            try {
+              fs.closeSync(fd)
+            } catch (er) {}
+          } else {
+            fs.closeSync(fd)
+          }
+        }
+        return ret
+      }
+
+    } else {
+      fs.lutimes = function (_a, _b, _c, cb) { if (cb) process.nextTick(cb) }
+      fs.lutimesSync = function () {}
+    }
+  }
+
+  function chmodFix (orig) {
+    if (!orig) return orig
+    return function (target, mode, cb) {
+      return orig.call(fs, target, mode, function (er) {
+        if (chownErOk(er)) er = null
+        if (cb) cb.apply(this, arguments)
+      })
+    }
+  }
+
+  function chmodFixSync (orig) {
+    if (!orig) return orig
+    return function (target, mode) {
+      try {
+        return orig.call(fs, target, mode)
+      } catch (er) {
+        if (!chownErOk(er)) throw er
+      }
+    }
+  }
+
+
+  function chownFix (orig) {
+    if (!orig) return orig
+    return function (target, uid, gid, cb) {
+      return orig.call(fs, target, uid, gid, function (er) {
+        if (chownErOk(er)) er = null
+        if (cb) cb.apply(this, arguments)
+      })
+    }
+  }
+
+  function chownFixSync (orig) {
+    if (!orig) return orig
+    return function (target, uid, gid) {
+      try {
+        return orig.call(fs, target, uid, gid)
+      } catch (er) {
+        if (!chownErOk(er)) throw er
+      }
+    }
+  }
+
+
+  function statFix (orig) {
+    if (!orig) return orig
+    // Older versions of Node erroneously returned signed integers for
+    // uid + gid.
+    return function (target, cb) {
+      return orig.call(fs, target, function (er, stats) {
+        if (!stats) return cb.apply(this, arguments)
+        if (stats.uid < 0) stats.uid += 0x100000000
+        if (stats.gid < 0) stats.gid += 0x100000000
+        if (cb) cb.apply(this, arguments)
+      })
+    }
+  }
+
+  function statFixSync (orig) {
+    if (!orig) return orig
+    // Older versions of Node erroneously returned signed integers for
+    // uid + gid.
+    return function (target) {
+      var stats = orig.call(fs, target)
+      if (stats.uid < 0) stats.uid += 0x100000000
+      if (stats.gid < 0) stats.gid += 0x100000000
+      return stats;
+    }
+  }
+
+  // ENOSYS means that the fs doesn't support the op. Just ignore
+  // that, because it doesn't matter.
+  //
+  // if there's no getuid, or if getuid() is something other
+  // than 0, and the error is EINVAL or EPERM, then just ignore
+  // it.
+  //
+  // This specific case is a silent failure in cp, install, tar,
+  // and most other unix tools that manage permissions.
+  //
+  // When running as root, or if other types of errors are
+  // encountered, then it's strict.
+  function chownErOk (er) {
+    if (!er)
+      return true
+
+    if (er.code === "ENOSYS")
+      return true
+
+    var nonroot = !process.getuid || process.getuid() !== 0
+    if (nonroot) {
+      if (er.code === "EINVAL" || er.code === "EPERM")
+        return true
+    }
+
+    return false
+  }
+}
diff --git a/helloworld/node_modules/has-binary2/History.md b/helloworld/node_modules/has-binary2/History.md
new file mode 100755
index 0000000..397793e
--- /dev/null
+++ b/helloworld/node_modules/has-binary2/History.md
@@ -0,0 +1,57 @@
+<a name="1.0.3"></a>
+## [1.0.3](https://github.com/darrachequesne/has-binary/compare/1.0.2...1.0.3) (2018-05-14)
+
+
+### Bug Fixes
+
+* avoid use of global ([#4](https://github.com/darrachequesne/has-binary/issues/4)) ([91aa21e](https://github.com/darrachequesne/has-binary/commit/91aa21e))
+
+
+
+<a name="1.0.2"></a>
+## [1.0.2](https://github.com/darrachequesne/has-binary/compare/1.0.1...1.0.2) (2017-04-27)
+
+
+### Bug Fixes
+
+* Fix Blob detection for iOS 8/9 ([2a7b25c](https://github.com/darrachequesne/has-binary/commit/2a7b25c))
+
+
+
+<a name="1.0.1"></a>
+## [1.0.1](https://github.com/darrachequesne/has-binary/compare/1.0.0...1.0.1) (2017-04-05)
+
+
+
+<a name="1.0.0"></a>
+# [1.0.0](https://github.com/darrachequesne/has-binary/compare/0.1.7...1.0.0) (2017-04-05)
+
+
+### Bug Fixes
+
+* do not call toJSON more than once ([#7](https://github.com/darrachequesne/has-binary/issues/7)) ([27165d2](https://github.com/darrachequesne/has-binary/commit/27165d2))
+* Ensure globals are functions before running `instanceof` checks against them. ([#4](https://github.com/darrachequesne/has-binary/issues/4)) ([f9be9b3](https://github.com/darrachequesne/has-binary/commit/f9be9b3))
+* fix the case when toJSON() returns a Buffer  ([#6](https://github.com/darrachequesne/has-binary/issues/6)) ([518747d](https://github.com/darrachequesne/has-binary/commit/518747d))
+
+
+### Performance Improvements
+
+* Performance improvements ([#3](https://github.com/darrachequesne/has-binary/issues/3)) ([3e88e81](https://github.com/darrachequesne/has-binary/commit/3e88e81))
+
+
+
+<a name="0.1.7"></a>
+## [0.1.7](https://github.com/darrachequesne/has-binary/compare/0.1.6...0.1.7) (2015-11-19)
+
+
+
+<a name="0.1.6"></a>
+## [0.1.6](https://github.com/darrachequesne/has-binary/compare/0.1.5...0.1.6) (2015-01-24)
+
+
+
+<a name="0.1.5"></a>
+## 0.1.5 (2014-09-04)
+
+
+
diff --git a/helloworld/node_modules/has-binary2/LICENSE b/helloworld/node_modules/has-binary2/LICENSE
new file mode 100755
index 0000000..e6603cd
--- /dev/null
+++ b/helloworld/node_modules/has-binary2/LICENSE
@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Kevin Roark
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/has-binary2/README.md b/helloworld/node_modules/has-binary2/README.md
new file mode 100755
index 0000000..76a0035
--- /dev/null
+++ b/helloworld/node_modules/has-binary2/README.md
@@ -0,0 +1,4 @@
+has-binarydata.js
+=================
+
+Simple module to test if an object contains binary data
diff --git a/helloworld/node_modules/has-binary2/index.js b/helloworld/node_modules/has-binary2/index.js
new file mode 100755
index 0000000..cf756a3
--- /dev/null
+++ b/helloworld/node_modules/has-binary2/index.js
@@ -0,0 +1,64 @@
+/* global Blob File */
+
+/*
+ * Module requirements.
+ */
+
+var isArray = require('isarray');
+
+var toString = Object.prototype.toString;
+var withNativeBlob = typeof Blob === 'function' ||
+                        typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]';
+var withNativeFile = typeof File === 'function' ||
+                        typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]';
+
+/**
+ * Module exports.
+ */
+
+module.exports = hasBinary;
+
+/**
+ * Checks for binary data.
+ *
+ * Supports Buffer, ArrayBuffer, Blob and File.
+ *
+ * @param {Object} anything
+ * @api public
+ */
+
+function hasBinary (obj) {
+  if (!obj || typeof obj !== 'object') {
+    return false;
+  }
+
+  if (isArray(obj)) {
+    for (var i = 0, l = obj.length; i < l; i++) {
+      if (hasBinary(obj[i])) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  if ((typeof Buffer === 'function' && Buffer.isBuffer && Buffer.isBuffer(obj)) ||
+    (typeof ArrayBuffer === 'function' && obj instanceof ArrayBuffer) ||
+    (withNativeBlob && obj instanceof Blob) ||
+    (withNativeFile && obj instanceof File)
+  ) {
+    return true;
+  }
+
+  // see: https://github.com/Automattic/has-binary/pull/4
+  if (obj.toJSON && typeof obj.toJSON === 'function' && arguments.length === 1) {
+    return hasBinary(obj.toJSON(), true);
+  }
+
+  for (var key in obj) {
+    if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {
+      return true;
+    }
+  }
+
+  return false;
+}
diff --git a/helloworld/node_modules/has-cors/History.md b/helloworld/node_modules/has-cors/History.md
new file mode 100755
index 0000000..4308161
--- /dev/null
+++ b/helloworld/node_modules/has-cors/History.md
@@ -0,0 +1,21 @@
+
+1.1.0 / 2014-11-12
+==================
+
+  * remove "global" module dependency (#2, @achingbrain)
+
+1.0.2 / 2013-08-27
+==================
+
+  * explicitly use `global` instead of being implicit
+  * pin "component/global" to v2.0.1
+
+1.0.1 / 2013-08-23
+==================
+
+  * package: add "component" section
+
+1.0.0 / 2013-08-22
+==================
+
+  * Initial release
diff --git a/helloworld/node_modules/has-cors/Makefile b/helloworld/node_modules/has-cors/Makefile
new file mode 100755
index 0000000..0f14dac
--- /dev/null
+++ b/helloworld/node_modules/has-cors/Makefile
@@ -0,0 +1,11 @@
+
+build: components index.js
+	@component build --dev
+
+components: component.json
+	@component install --dev
+
+clean:
+	rm -fr build components template.js
+
+.PHONY: clean
diff --git a/helloworld/node_modules/has-cors/Readme.md b/helloworld/node_modules/has-cors/Readme.md
new file mode 100755
index 0000000..8954646
--- /dev/null
+++ b/helloworld/node_modules/has-cors/Readme.md
@@ -0,0 +1,24 @@
+
+# has-cors
+
+  Detects support for Cross-Origin Resource Sharing
+
+## Installation
+
+  Install with [component(1)](http://component.io):
+
+    $ component install component/has-cors
+
+## API
+
+Exports `true` if the user-agent supports CORS, or `false` otherwise.
+
+``` js
+var hasCORS = require('has-cors');
+console.log(hasCORS);
+// true
+```
+
+## License
+
+  MIT
diff --git a/helloworld/node_modules/has-cors/component.json b/helloworld/node_modules/has-cors/component.json
new file mode 100755
index 0000000..b95e04d
--- /dev/null
+++ b/helloworld/node_modules/has-cors/component.json
@@ -0,0 +1,13 @@
+{
+  "name": "has-cors",
+  "repo": "component/has-cors",
+  "description": "Detects support for Cross-Origin Resource Sharing",
+  "version": "1.1.0",
+  "keywords": [],
+  "development": {},
+  "license": "MIT",
+  "main": "index.js",
+  "scripts": [
+    "index.js"
+  ]
+}
diff --git a/helloworld/node_modules/has-cors/index.js b/helloworld/node_modules/has-cors/index.js
new file mode 100755
index 0000000..952a7c8
--- /dev/null
+++ b/helloworld/node_modules/has-cors/index.js
@@ -0,0 +1,17 @@
+
+/**
+ * Module exports.
+ *
+ * Logic borrowed from Modernizr:
+ *
+ *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js
+ */
+
+try {
+  module.exports = typeof XMLHttpRequest !== 'undefined' &&
+    'withCredentials' in new XMLHttpRequest();
+} catch (err) {
+  // if XMLHttp support is disabled in IE then it will throw
+  // when trying to create
+  module.exports = false;
+}
diff --git a/helloworld/node_modules/has-cors/package.json b/helloworld/node_modules/has-cors/package.json
new file mode 100755
index 0000000..45475c9
--- /dev/null
+++ b/helloworld/node_modules/has-cors/package.json
@@ -0,0 +1,66 @@
+{
+  "_from": "has-cors@1.1.0",
+  "_id": "has-cors@1.1.0",
+  "_inBundle": false,
+  "_integrity": "sha1-XkdHk/fqmEPRu5nCPu9J/xJv/zk=",
+  "_location": "/has-cors",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "has-cors@1.1.0",
+    "name": "has-cors",
+    "escapedName": "has-cors",
+    "rawSpec": "1.1.0",
+    "saveSpec": null,
+    "fetchSpec": "1.1.0"
+  },
+  "_requiredBy": [
+    "/engine.io-client",
+    "/socket.io-client"
+  ],
+  "_resolved": "https://registry.npmjs.org/has-cors/-/has-cors-1.1.0.tgz",
+  "_shasum": "5e474793f7ea9843d1bb99c23eef49ff126fff39",
+  "_spec": "has-cors@1.1.0",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/socket.io-client",
+  "author": {
+    "name": "Nathan Rajlich",
+    "email": "nathan@tootallnate.net",
+    "url": "http://n8.io/"
+  },
+  "bugs": {
+    "url": "https://github.com/component/has-cors/issues"
+  },
+  "bundleDependencies": false,
+  "component": {
+    "scripts": {
+      "has-cors/index.js": "index.js"
+    }
+  },
+  "deprecated": false,
+  "description": "Detects support for Cross-Origin Resource Sharing",
+  "devDependencies": {
+    "chai": "^1.10",
+    "mocha": "^2.0"
+  },
+  "homepage": "https://github.com/component/has-cors#readme",
+  "keywords": [
+    "cors",
+    "cross",
+    "origin",
+    "resource",
+    "sharing",
+    "domain"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "name": "has-cors",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/component/has-cors.git"
+  },
+  "scripts": {
+    "test": "mocha"
+  },
+  "version": "1.1.0"
+}
diff --git a/helloworld/node_modules/has-cors/test.js b/helloworld/node_modules/has-cors/test.js
new file mode 100755
index 0000000..d2dfb84
--- /dev/null
+++ b/helloworld/node_modules/has-cors/test.js
@@ -0,0 +1,24 @@
+var expect = require('chai').expect;
+
+describe('has-cors', function() {
+  beforeEach(function() {
+    // make sure result is not cached
+    delete require.cache[require.resolve('./')];
+  });
+  
+  it('should not have cors', function() {
+    var hasCors = require('./');
+
+    expect(hasCors).to.be.false;
+  });
+  
+  it('should have cors', function() {
+    global.XMLHttpRequest = function() {
+      this.withCredentials = true;
+    };
+
+    var hasCors = require('./');
+
+    expect(hasCors).to.be.true;
+  });
+});
diff --git a/helloworld/node_modules/hosted-git-info/CHANGELOG.md b/helloworld/node_modules/hosted-git-info/CHANGELOG.md
new file mode 100755
index 0000000..7a8d5df
--- /dev/null
+++ b/helloworld/node_modules/hosted-git-info/CHANGELOG.md
@@ -0,0 +1,54 @@
+# Change Log
+
+All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
+
+<a name="2.7.1"></a>
+## [2.7.1](https://github.com/npm/hosted-git-info/compare/v2.7.0...v2.7.1) (2018-07-07)
+
+
+### Bug Fixes
+
+* **index:** Guard against non-string types ([5bc580d](https://github.com/npm/hosted-git-info/commit/5bc580d))
+* **parse:** Crash on strings that parse to having no host ([c931482](https://github.com/npm/hosted-git-info/commit/c931482)), closes [#35](https://github.com/npm/hosted-git-info/issues/35)
+
+
+
+<a name="2.7.0"></a>
+# [2.7.0](https://github.com/npm/hosted-git-info/compare/v2.6.1...v2.7.0) (2018-07-06)
+
+
+### Bug Fixes
+
+* **github tarball:** update github tarballtemplate ([6efd582](https://github.com/npm/hosted-git-info/commit/6efd582)), closes [#34](https://github.com/npm/hosted-git-info/issues/34)
+* **gitlab docs:** switched to lowercase anchors for readmes ([701bcd1](https://github.com/npm/hosted-git-info/commit/701bcd1))
+
+
+### Features
+
+* **all:** Support www. prefixes on hostnames ([3349575](https://github.com/npm/hosted-git-info/commit/3349575)), closes [#32](https://github.com/npm/hosted-git-info/issues/32)
+
+
+
+<a name="2.6.1"></a>
+## [2.6.1](https://github.com/npm/hosted-git-info/compare/v2.6.0...v2.6.1) (2018-06-25)
+
+### Bug Fixes
+
+* **Revert:** "compat: remove Object.assign fallback ([#25](https://github.com/npm/hosted-git-info/issues/25))" ([cce5a62](https://github.com/npm/hosted-git-info/commit/cce5a62))
+* **Revert:** "git-host: fix forgotten extend()" ([a815ec9](https://github.com/npm/hosted-git-info/commit/a815ec9))
+
+
+
+<a name="2.6.0"></a>
+# [2.6.0](https://github.com/npm/hosted-git-info/compare/v2.5.0...v2.6.0) (2018-03-07)
+
+
+### Bug Fixes
+
+* **compat:** remove Object.assign fallback ([#25](https://github.com/npm/hosted-git-info/issues/25)) ([627ab55](https://github.com/npm/hosted-git-info/commit/627ab55))
+* **git-host:** fix forgotten extend() ([eba1f7b](https://github.com/npm/hosted-git-info/commit/eba1f7b))
+
+
+### Features
+
+* **browse:** fragment support for browse() ([#28](https://github.com/npm/hosted-git-info/issues/28)) ([cd5e5bb](https://github.com/npm/hosted-git-info/commit/cd5e5bb))
diff --git a/helloworld/node_modules/hosted-git-info/LICENSE b/helloworld/node_modules/hosted-git-info/LICENSE
new file mode 100755
index 0000000..4505576
--- /dev/null
+++ b/helloworld/node_modules/hosted-git-info/LICENSE
@@ -0,0 +1,13 @@
+Copyright (c) 2015, Rebecca Turner
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
diff --git a/helloworld/node_modules/hosted-git-info/README.md b/helloworld/node_modules/hosted-git-info/README.md
new file mode 100755
index 0000000..7b723f6
--- /dev/null
+++ b/helloworld/node_modules/hosted-git-info/README.md
@@ -0,0 +1,133 @@
+# hosted-git-info
+
+This will let you identify and transform various git hosts URLs between
+protocols.  It also can tell you what the URL is for the raw path for
+particular file for direct access without git.
+
+## Example
+
+```javascript
+var hostedGitInfo = require("hosted-git-info")
+var info = hostedGitInfo.fromUrl("git@github.com:npm/hosted-git-info.git", opts)
+/* info looks like:
+{
+  type: "github",
+  domain: "github.com",
+  user: "npm",
+  project: "hosted-git-info"
+}
+*/
+```
+
+If the URL can't be matched with a git host, `null` will be returned.  We
+can match git, ssh and https urls.  Additionally, we can match ssh connect
+strings (`git@github.com:npm/hosted-git-info`) and shortcuts (eg,
+`github:npm/hosted-git-info`).  Github specifically, is detected in the case
+of a third, unprefixed, form: `npm/hosted-git-info`.
+
+If it does match, the returned object has properties of:
+
+* info.type -- The short name of the service
+* info.domain -- The domain for git protocol use
+* info.user -- The name of the user/org on the git host
+* info.project -- The name of the project on the git host
+
+## Version Contract
+
+The major version will be bumped any time…
+
+* The constructor stops accepting URLs that it previously accepted.
+* A method is removed.
+* A method can no longer accept the number and type of arguments it previously accepted.
+* A method can return a different type than it currently returns.
+
+Implications:
+
+* I do not consider the specific format of the urls returned from, say
+  `.https()` to be a part of the contract.  The contract is that it will
+  return a string that can be used to fetch the repo via HTTPS.  But what
+  that string looks like, specifically, can change.
+* Dropping support for a hosted git provider would constitute a breaking
+  change.
+
+## Usage
+
+### var info = hostedGitInfo.fromUrl(gitSpecifier[, options])
+
+* *gitSpecifer* is a URL of a git repository or a SCP-style specifier of one.
+* *options* is an optional object. It can have the following properties:
+  * *noCommittish* — If true then committishes won't be included in generated URLs.
+  * *noGitPlus* — If true then `git+` won't be prefixed on URLs.
+
+## Methods
+
+All of the methods take the same options as the `fromUrl` factory.  Options
+provided to a method override those provided to the constructor.
+
+* info.file(path, opts)
+
+Given the path of a file relative to the repository, returns a URL for
+directly fetching it from the githost.  If no committish was set then
+`master` will be used as the default.
+
+For example `hostedGitInfo.fromUrl("git@github.com:npm/hosted-git-info.git#v1.0.0").file("package.json")`
+would return `https://raw.githubusercontent.com/npm/hosted-git-info/v1.0.0/package.json`
+
+* info.shortcut(opts)
+
+eg, `github:npm/hosted-git-info`
+
+* info.browse(path, fragment, opts)
+
+eg, `https://github.com/npm/hosted-git-info/tree/v1.2.0`,
+`https://github.com/npm/hosted-git-info/tree/v1.2.0/package.json`,
+`https://github.com/npm/hosted-git-info/tree/v1.2.0/REAMDE.md#supported-hosts`
+
+* info.bugs(opts)
+
+eg, `https://github.com/npm/hosted-git-info/issues`
+
+* info.docs(opts)
+
+eg, `https://github.com/npm/hosted-git-info/tree/v1.2.0#readme`
+
+* info.https(opts)
+
+eg, `git+https://github.com/npm/hosted-git-info.git`
+
+* info.sshurl(opts)
+
+eg, `git+ssh://git@github.com/npm/hosted-git-info.git`
+
+* info.ssh(opts)
+
+eg, `git@github.com:npm/hosted-git-info.git`
+
+* info.path(opts)
+
+eg, `npm/hosted-git-info`
+
+* info.tarball(opts)
+
+eg, `https://github.com/npm/hosted-git-info/archive/v1.2.0.tar.gz`
+
+* info.getDefaultRepresentation()
+
+Returns the default output type. The default output type is based on the
+string you passed in to be parsed
+
+* info.toString(opts)
+
+Uses the getDefaultRepresentation to call one of the other methods to get a URL for
+this resource. As such `hostedGitInfo.fromUrl(url).toString()` will give
+you a normalized version of the URL that still uses the same protocol.
+
+Shortcuts will still be returned as shortcuts, but the special case github
+form of `org/project` will be normalized to `github:org/project`.
+
+SSH connect strings will be normalized into `git+ssh` URLs.
+
+## Supported hosts
+
+Currently this supports Github, Bitbucket and Gitlab. Pull requests for
+additional hosts welcome.
diff --git a/helloworld/node_modules/hosted-git-info/git-host-info.js b/helloworld/node_modules/hosted-git-info/git-host-info.js
new file mode 100755
index 0000000..090a232
--- /dev/null
+++ b/helloworld/node_modules/hosted-git-info/git-host-info.js
@@ -0,0 +1,77 @@
+'use strict'
+
+var gitHosts = module.exports = {
+  github: {
+    // First two are insecure and generally shouldn't be used any more, but
+    // they are still supported.
+    'protocols': [ 'git', 'http', 'git+ssh', 'git+https', 'ssh', 'https' ],
+    'domain': 'github.com',
+    'treepath': 'tree',
+    'filetemplate': 'https://{auth@}raw.githubusercontent.com/{user}/{project}/{committish}/{path}',
+    'bugstemplate': 'https://{domain}/{user}/{project}/issues',
+    'gittemplate': 'git://{auth@}{domain}/{user}/{project}.git{#committish}',
+    'tarballtemplate': 'https://codeload.{domain}/{user}/{project}/tar.gz/{committish}'
+  },
+  bitbucket: {
+    'protocols': [ 'git+ssh', 'git+https', 'ssh', 'https' ],
+    'domain': 'bitbucket.org',
+    'treepath': 'src',
+    'tarballtemplate': 'https://{domain}/{user}/{project}/get/{committish}.tar.gz'
+  },
+  gitlab: {
+    'protocols': [ 'git+ssh', 'git+https', 'ssh', 'https' ],
+    'domain': 'gitlab.com',
+    'treepath': 'tree',
+    'bugstemplate': 'https://{domain}/{user}/{project}/issues',
+    'tarballtemplate': 'https://{domain}/{user}/{project}/repository/archive.tar.gz?ref={committish}'
+  },
+  gist: {
+    'protocols': [ 'git', 'git+ssh', 'git+https', 'ssh', 'https' ],
+    'domain': 'gist.github.com',
+    'pathmatch': /^[/](?:([^/]+)[/])?([a-z0-9]+)(?:[.]git)?$/,
+    'filetemplate': 'https://gist.githubusercontent.com/{user}/{project}/raw{/committish}/{path}',
+    'bugstemplate': 'https://{domain}/{project}',
+    'gittemplate': 'git://{domain}/{project}.git{#committish}',
+    'sshtemplate': 'git@{domain}:/{project}.git{#committish}',
+    'sshurltemplate': 'git+ssh://git@{domain}/{project}.git{#committish}',
+    'browsetemplate': 'https://{domain}/{project}{/committish}',
+    'browsefiletemplate': 'https://{domain}/{project}{/committish}{#path}',
+    'docstemplate': 'https://{domain}/{project}{/committish}',
+    'httpstemplate': 'git+https://{domain}/{project}.git{#committish}',
+    'shortcuttemplate': '{type}:{project}{#committish}',
+    'pathtemplate': '{project}{#committish}',
+    'tarballtemplate': 'https://{domain}/{user}/{project}/archive/{committish}.tar.gz',
+    'hashformat': function (fragment) {
+      return 'file-' + formatHashFragment(fragment)
+    }
+  }
+}
+
+var gitHostDefaults = {
+  'sshtemplate': 'git@{domain}:{user}/{project}.git{#committish}',
+  'sshurltemplate': 'git+ssh://git@{domain}/{user}/{project}.git{#committish}',
+  'browsetemplate': 'https://{domain}/{user}/{project}{/tree/committish}',
+  'browsefiletemplate': 'https://{domain}/{user}/{project}/{treepath}/{committish}/{path}{#fragment}',
+  'docstemplate': 'https://{domain}/{user}/{project}{/tree/committish}#readme',
+  'httpstemplate': 'git+https://{auth@}{domain}/{user}/{project}.git{#committish}',
+  'filetemplate': 'https://{domain}/{user}/{project}/raw/{committish}/{path}',
+  'shortcuttemplate': '{type}:{user}/{project}{#committish}',
+  'pathtemplate': '{user}/{project}{#committish}',
+  'pathmatch': /^[/]([^/]+)[/]([^/]+?)(?:[.]git|[/])?$/,
+  'hashformat': formatHashFragment
+}
+
+Object.keys(gitHosts).forEach(function (name) {
+  Object.keys(gitHostDefaults).forEach(function (key) {
+    if (gitHosts[name][key]) return
+    gitHosts[name][key] = gitHostDefaults[key]
+  })
+  gitHosts[name].protocols_re = RegExp('^(' +
+    gitHosts[name].protocols.map(function (protocol) {
+      return protocol.replace(/([\\+*{}()[\]$^|])/g, '\\$1')
+    }).join('|') + '):$')
+})
+
+function formatHashFragment (fragment) {
+  return fragment.toLowerCase().replace(/^\W+|\/|\W+$/g, '').replace(/\W+/g, '-')
+}
diff --git a/helloworld/node_modules/hosted-git-info/git-host.js b/helloworld/node_modules/hosted-git-info/git-host.js
new file mode 100755
index 0000000..733648d
--- /dev/null
+++ b/helloworld/node_modules/hosted-git-info/git-host.js
@@ -0,0 +1,131 @@
+'use strict'
+var gitHosts = require('./git-host-info.js')
+/* eslint-disable node/no-deprecated-api */
+var extend = Object.assign || require('util')._extend
+
+var GitHost = module.exports = function (type, user, auth, project, committish, defaultRepresentation, opts) {
+  var gitHostInfo = this
+  gitHostInfo.type = type
+  Object.keys(gitHosts[type]).forEach(function (key) {
+    gitHostInfo[key] = gitHosts[type][key]
+  })
+  gitHostInfo.user = user
+  gitHostInfo.auth = auth
+  gitHostInfo.project = project
+  gitHostInfo.committish = committish
+  gitHostInfo.default = defaultRepresentation
+  gitHostInfo.opts = opts || {}
+}
+GitHost.prototype = {}
+
+GitHost.prototype.hash = function () {
+  return this.committish ? '#' + this.committish : ''
+}
+
+GitHost.prototype._fill = function (template, opts) {
+  if (!template) return
+  var vars = extend({}, opts)
+  vars.path = vars.path ? vars.path.replace(/^[/]+/g, '') : ''
+  opts = extend(extend({}, this.opts), opts)
+  var self = this
+  Object.keys(this).forEach(function (key) {
+    if (self[key] != null && vars[key] == null) vars[key] = self[key]
+  })
+  var rawAuth = vars.auth
+  var rawComittish = vars.committish
+  var rawFragment = vars.fragment
+  var rawPath = vars.path
+  Object.keys(vars).forEach(function (key) {
+    vars[key] = encodeURIComponent(vars[key])
+  })
+  vars['auth@'] = rawAuth ? rawAuth + '@' : ''
+  vars['#fragment'] = rawFragment ? '#' + this.hashformat(rawFragment) : ''
+  vars.fragment = vars.fragment ? vars.fragment : ''
+  vars['#path'] = rawPath ? '#' + this.hashformat(rawPath) : ''
+  vars['/path'] = vars.path ? '/' + vars.path : ''
+  if (opts.noCommittish) {
+    vars['#committish'] = ''
+    vars['/tree/committish'] = ''
+    vars['/comittish'] = ''
+    vars.comittish = ''
+  } else {
+    vars['#committish'] = rawComittish ? '#' + rawComittish : ''
+    vars['/tree/committish'] = vars.committish
+      ? '/' + vars.treepath + '/' + vars.committish
+      : ''
+    vars['/committish'] = vars.committish ? '/' + vars.committish : ''
+    vars.committish = vars.committish || 'master'
+  }
+  var res = template
+  Object.keys(vars).forEach(function (key) {
+    res = res.replace(new RegExp('[{]' + key + '[}]', 'g'), vars[key])
+  })
+  if (opts.noGitPlus) {
+    return res.replace(/^git[+]/, '')
+  } else {
+    return res
+  }
+}
+
+GitHost.prototype.ssh = function (opts) {
+  return this._fill(this.sshtemplate, opts)
+}
+
+GitHost.prototype.sshurl = function (opts) {
+  return this._fill(this.sshurltemplate, opts)
+}
+
+GitHost.prototype.browse = function (P, F, opts) {
+  if (typeof P === 'string') {
+    if (typeof F !== 'string') {
+      opts = F
+      F = null
+    }
+    return this._fill(this.browsefiletemplate, extend({
+      fragment: F,
+      path: P
+    }, opts))
+  } else {
+    return this._fill(this.browsetemplate, P)
+  }
+}
+
+GitHost.prototype.docs = function (opts) {
+  return this._fill(this.docstemplate, opts)
+}
+
+GitHost.prototype.bugs = function (opts) {
+  return this._fill(this.bugstemplate, opts)
+}
+
+GitHost.prototype.https = function (opts) {
+  return this._fill(this.httpstemplate, opts)
+}
+
+GitHost.prototype.git = function (opts) {
+  return this._fill(this.gittemplate, opts)
+}
+
+GitHost.prototype.shortcut = function (opts) {
+  return this._fill(this.shortcuttemplate, opts)
+}
+
+GitHost.prototype.path = function (opts) {
+  return this._fill(this.pathtemplate, opts)
+}
+
+GitHost.prototype.tarball = function (opts) {
+  return this._fill(this.tarballtemplate, opts)
+}
+
+GitHost.prototype.file = function (P, opts) {
+  return this._fill(this.filetemplate, extend({ path: P }, opts))
+}
+
+GitHost.prototype.getDefaultRepresentation = function () {
+  return this.default
+}
+
+GitHost.prototype.toString = function (opts) {
+  return (this[this.default] || this.sshurl).call(this, opts)
+}
diff --git a/helloworld/node_modules/hosted-git-info/index.js b/helloworld/node_modules/hosted-git-info/index.js
new file mode 100755
index 0000000..c1c2cc8
--- /dev/null
+++ b/helloworld/node_modules/hosted-git-info/index.js
@@ -0,0 +1,122 @@
+'use strict'
+var url = require('url')
+var gitHosts = require('./git-host-info.js')
+var GitHost = module.exports = require('./git-host.js')
+
+var protocolToRepresentationMap = {
+  'git+ssh': 'sshurl',
+  'git+https': 'https',
+  'ssh': 'sshurl',
+  'git': 'git'
+}
+
+function protocolToRepresentation (protocol) {
+  if (protocol.substr(-1) === ':') protocol = protocol.slice(0, -1)
+  return protocolToRepresentationMap[protocol] || protocol
+}
+
+var authProtocols = {
+  'git:': true,
+  'https:': true,
+  'git+https:': true,
+  'http:': true,
+  'git+http:': true
+}
+
+var cache = {}
+
+module.exports.fromUrl = function (giturl, opts) {
+  if (typeof giturl !== 'string') return
+  var key = giturl + JSON.stringify(opts || {})
+
+  if (!(key in cache)) {
+    cache[key] = fromUrl(giturl, opts)
+  }
+
+  return cache[key]
+}
+
+function fromUrl (giturl, opts) {
+  if (giturl == null || giturl === '') return
+  var url = fixupUnqualifiedGist(
+    isGitHubShorthand(giturl) ? 'github:' + giturl : giturl
+  )
+  var parsed = parseGitUrl(url)
+  var shortcutMatch = url.match(new RegExp('^([^:]+):(?:(?:[^@:]+(?:[^@]+)?@)?([^/]*))[/](.+?)(?:[.]git)?($|#)'))
+  var matches = Object.keys(gitHosts).map(function (gitHostName) {
+    try {
+      var gitHostInfo = gitHosts[gitHostName]
+      var auth = null
+      if (parsed.auth && authProtocols[parsed.protocol]) {
+        auth = decodeURIComponent(parsed.auth)
+      }
+      var committish = parsed.hash ? decodeURIComponent(parsed.hash.substr(1)) : null
+      var user = null
+      var project = null
+      var defaultRepresentation = null
+      if (shortcutMatch && shortcutMatch[1] === gitHostName) {
+        user = shortcutMatch[2] && decodeURIComponent(shortcutMatch[2])
+        project = decodeURIComponent(shortcutMatch[3])
+        defaultRepresentation = 'shortcut'
+      } else {
+        if (parsed.host && parsed.host !== gitHostInfo.domain && parsed.host.replace(/^www[.]/, '') !== gitHostInfo.domain) return
+        if (!gitHostInfo.protocols_re.test(parsed.protocol)) return
+        if (!parsed.path) return
+        var pathmatch = gitHostInfo.pathmatch
+        var matched = parsed.path.match(pathmatch)
+        if (!matched) return
+        if (matched[1] != null) user = decodeURIComponent(matched[1].replace(/^:/, ''))
+        if (matched[2] != null) project = decodeURIComponent(matched[2])
+        defaultRepresentation = protocolToRepresentation(parsed.protocol)
+      }
+      return new GitHost(gitHostName, user, auth, project, committish, defaultRepresentation, opts)
+    } catch (ex) {
+      if (!(ex instanceof URIError)) throw ex
+    }
+  }).filter(function (gitHostInfo) { return gitHostInfo })
+  if (matches.length !== 1) return
+  return matches[0]
+}
+
+function isGitHubShorthand (arg) {
+  // Note: This does not fully test the git ref format.
+  // See https://www.kernel.org/pub/software/scm/git/docs/git-check-ref-format.html
+  //
+  // The only way to do this properly would be to shell out to
+  // git-check-ref-format, and as this is a fast sync function,
+  // we don't want to do that.  Just let git fail if it turns
+  // out that the commit-ish is invalid.
+  // GH usernames cannot start with . or -
+  return /^[^:@%/\s.-][^:@%/\s]*[/][^:@\s/%]+(?:#.*)?$/.test(arg)
+}
+
+function fixupUnqualifiedGist (giturl) {
+  // necessary for round-tripping gists
+  var parsed = url.parse(giturl)
+  if (parsed.protocol === 'gist:' && parsed.host && !parsed.path) {
+    return parsed.protocol + '/' + parsed.host
+  } else {
+    return giturl
+  }
+}
+
+function parseGitUrl (giturl) {
+  if (typeof giturl !== 'string') giturl = '' + giturl
+  var matched = giturl.match(/^([^@]+)@([^:/]+):[/]?((?:[^/]+[/])?[^/]+?)(?:[.]git)?(#.*)?$/)
+  if (!matched) return url.parse(giturl)
+  return {
+    protocol: 'git+ssh:',
+    slashes: true,
+    auth: matched[1],
+    host: matched[2],
+    port: null,
+    hostname: matched[2],
+    hash: matched[4],
+    search: null,
+    query: null,
+    pathname: '/' + matched[3],
+    path: '/' + matched[3],
+    href: 'git+ssh://' + matched[1] + '@' + matched[2] +
+          '/' + matched[3] + (matched[4] || '')
+  }
+}
diff --git a/helloworld/node_modules/http-cache-semantics/LICENSE b/helloworld/node_modules/http-cache-semantics/LICENSE
new file mode 100755
index 0000000..493d2ea
--- /dev/null
+++ b/helloworld/node_modules/http-cache-semantics/LICENSE
@@ -0,0 +1,9 @@
+Copyright 2016-2018 Kornel Lesiński
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/helloworld/node_modules/http-cache-semantics/README.md b/helloworld/node_modules/http-cache-semantics/README.md
new file mode 100755
index 0000000..a9d689d
--- /dev/null
+++ b/helloworld/node_modules/http-cache-semantics/README.md
@@ -0,0 +1,193 @@
+# Can I cache this? [![Build Status](https://travis-ci.org/kornelski/http-cache-semantics.svg?branch=master)](https://travis-ci.org/kornelski/http-cache-semantics)
+
+`CachePolicy` tells when responses can be reused from a cache, taking into account [HTTP RFC 7234](http://httpwg.org/specs/rfc7234.html) rules for user agents and shared caches. It's aware of many tricky details such as the `Vary` header, proxy revalidation, and authenticated responses.
+
+## Usage
+
+Cacheability of an HTTP response depends on how it was requested, so both `request` and `response` are required to create the policy.
+
+```js
+const policy = new CachePolicy(request, response, options);
+
+if (!policy.storable()) {
+    // throw the response away, it's not usable at all
+    return;
+}
+
+// Cache the data AND the policy object in your cache
+// (this is pseudocode, roll your own cache (lru-cache package works))
+letsPretendThisIsSomeCache.set(
+    request.url,
+    { policy, response },
+    policy.timeToLive()
+);
+```
+
+```js
+// And later, when you receive a new request:
+const { policy, response } = letsPretendThisIsSomeCache.get(newRequest.url);
+
+// It's not enough that it exists in the cache, it has to match the new request, too:
+if (policy && policy.satisfiesWithoutRevalidation(newRequest)) {
+    // OK, the previous response can be used to respond to the `newRequest`.
+    // Response headers have to be updated, e.g. to add Age and remove uncacheable headers.
+    response.headers = policy.responseHeaders();
+    return response;
+}
+```
+
+It may be surprising, but it's not enough for an HTTP response to be [fresh](#yo-fresh) to satisfy a request. It may need to match request headers specified in `Vary`. Even a matching fresh response may still not be usable if the new request restricted cacheability, etc.
+
+The key method is `satisfiesWithoutRevalidation(newRequest)`, which checks whether the `newRequest` is compatible with the original request and whether all caching conditions are met.
+
+### Constructor options
+
+Request and response must have a `headers` property with all header names in lower case. `url`, `status` and `method` are optional (defaults are any URL, status `200`, and `GET` method).
+
+```js
+const request = {
+    url: '/',
+    method: 'GET',
+    headers: {
+        accept: '*/*',
+    },
+};
+
+const response = {
+    status: 200,
+    headers: {
+        'cache-control': 'public, max-age=7234',
+    },
+};
+
+const options = {
+    shared: true,
+    cacheHeuristic: 0.1,
+    immutableMinTimeToLive: 24 * 3600 * 1000, // 24h
+    ignoreCargoCult: false,
+    trustServerDate: true,
+};
+```
+
+If `options.shared` is `true` (default), then the response is evaluated from a perspective of a shared cache (i.e. `private` is not cacheable and `s-maxage` is respected). If `options.shared` is `false`, then the response is evaluated from a perspective of a single-user cache (i.e. `private` is cacheable and `s-maxage` is ignored). `shared: true` is recommended for HTTP clients.
+
+`options.cacheHeuristic` is a fraction of response's age that is used as a fallback cache duration. The default is 0.1 (10%), e.g. if a file hasn't been modified for 100 days, it'll be cached for 100\*0.1 = 10 days.
+
+`options.immutableMinTimeToLive` is a number of milliseconds to assume as the default time to cache responses with `Cache-Control: immutable`. Note that [per RFC](http://httpwg.org/http-extensions/immutable.html) these can become stale, so `max-age` still overrides the default.
+
+If `options.ignoreCargoCult` is true, common anti-cache directives will be completely ignored if the non-standard `pre-check` and `post-check` directives are present. These two useless directives are most commonly found in bad StackOverflow answers and PHP's "session limiter" defaults.
+
+If `options.trustServerDate` is false, then server's `Date` header won't be used as the base for `max-age`. This is against the RFC, but it's useful if you want to cache responses with very short `max-age`, but your local clock is not exactly in sync with the server's.
+
+### `storable()`
+
+Returns `true` if the response can be stored in a cache. If it's `false` then you MUST NOT store either the request or the response.
+
+### `satisfiesWithoutRevalidation(newRequest)`
+
+This is the most important method. Use this method to check whether the cached response is still fresh in the context of the new request.
+
+If it returns `true`, then the given `request` matches the original response this cache policy has been created with, and the response can be reused without contacting the server. Note that the old response can't be returned without being updated, see `responseHeaders()`.
+
+If it returns `false`, then the response may not be matching at all (e.g. it's for a different URL or method), or may require to be refreshed first (see `revalidationHeaders()`).
+
+### `responseHeaders()`
+
+Returns updated, filtered set of response headers to return to clients receiving the cached response. This function is necessary, because proxies MUST always remove hop-by-hop headers (such as `TE` and `Connection`) and update response's `Age` to avoid doubling cache time.
+
+```js
+cachedResponse.headers = cachePolicy.responseHeaders(cachedResponse);
+```
+
+### `timeToLive()`
+
+Returns approximate time in _milliseconds_ until the response becomes stale (i.e. not fresh).
+
+After that time (when `timeToLive() <= 0`) the response might not be usable without revalidation. However, there are exceptions, e.g. a client can explicitly allow stale responses, so always check with `satisfiesWithoutRevalidation()`.
+
+### `toObject()`/`fromObject(json)`
+
+Chances are you'll want to store the `CachePolicy` object along with the cached response. `obj = policy.toObject()` gives a plain JSON-serializable object. `policy = CachePolicy.fromObject(obj)` creates an instance from it.
+
+### Refreshing stale cache (revalidation)
+
+When a cached response has expired, it can be made fresh again by making a request to the origin server. The server may respond with status 304 (Not Modified) without sending the response body again, saving bandwidth.
+
+The following methods help perform the update efficiently and correctly.
+
+#### `revalidationHeaders(newRequest)`
+
+Returns updated, filtered set of request headers to send to the origin server to check if the cached response can be reused. These headers allow the origin server to return status 304 indicating the response is still fresh. All headers unrelated to caching are passed through as-is.
+
+Use this method when updating cache from the origin server.
+
+```js
+updateRequest.headers = cachePolicy.revalidationHeaders(updateRequest);
+```
+
+#### `revalidatedPolicy(revalidationRequest, revalidationResponse)`
+
+Use this method to update the cache after receiving a new response from the origin server. It returns an object with two keys:
+
+-   `policy` — A new `CachePolicy` with HTTP headers updated from `revalidationResponse`. You can always replace the old cached `CachePolicy` with the new one.
+-   `modified` — Boolean indicating whether the response body has changed.
+    -   If `false`, then a valid 304 Not Modified response has been received, and you can reuse the old cached response body.
+    -   If `true`, you should use new response's body (if present), or make another request to the origin server without any conditional headers (i.e. don't use `revalidationHeaders()` this time) to get the new resource.
+
+```js
+// When serving requests from cache:
+const { oldPolicy, oldResponse } = letsPretendThisIsSomeCache.get(
+    newRequest.url
+);
+
+if (!oldPolicy.satisfiesWithoutRevalidation(newRequest)) {
+    // Change the request to ask the origin server if the cached response can be used
+    newRequest.headers = oldPolicy.revalidationHeaders(newRequest);
+
+    // Send request to the origin server. The server may respond with status 304
+    const newResponse = await makeRequest(newResponse);
+
+    // Create updated policy and combined response from the old and new data
+    const { policy, modified } = oldPolicy.revalidatedPolicy(
+        newRequest,
+        newResponse
+    );
+    const response = modified ? newResponse : oldResponse;
+
+    // Update the cache with the newer/fresher response
+    letsPretendThisIsSomeCache.set(
+        newRequest.url,
+        { policy, response },
+        policy.timeToLive()
+    );
+
+    // And proceed returning cached response as usual
+    response.headers = policy.responseHeaders();
+    return response;
+}
+```
+
+# Yo, FRESH
+
+![satisfiesWithoutRevalidation](fresh.jpg)
+
+## Used by
+
+-   [ImageOptim API](https://imageoptim.com/api), [make-fetch-happen](https://github.com/zkat/make-fetch-happen), [cacheable-request](https://www.npmjs.com/package/cacheable-request) ([got](https://www.npmjs.com/package/got)), [npm/registry-fetch](https://github.com/npm/registry-fetch), [etc.](https://github.com/kornelski/http-cache-semantics/network/dependents)
+
+## Implemented
+
+-   `Cache-Control` response header with all the quirks.
+-   `Expires` with check for bad clocks.
+-   `Pragma` response header.
+-   `Age` response header.
+-   `Vary` response header.
+-   Default cacheability of statuses and methods.
+-   Requests for stale data.
+-   Filtering of hop-by-hop headers.
+-   Basic revalidation request
+
+## Unimplemented
+
+-   Merging of range requests, If-Range (but correctly supports them as non-cacheable)
+-   Revalidation of multiple representations
diff --git a/helloworld/node_modules/http-cache-semantics/index.js b/helloworld/node_modules/http-cache-semantics/index.js
new file mode 100755
index 0000000..9577212
--- /dev/null
+++ b/helloworld/node_modules/http-cache-semantics/index.js
@@ -0,0 +1,653 @@
+'use strict';
+// rfc7231 6.1
+const statusCodeCacheableByDefault = [
+    200,
+    203,
+    204,
+    206,
+    300,
+    301,
+    404,
+    405,
+    410,
+    414,
+    501,
+];
+
+// This implementation does not understand partial responses (206)
+const understoodStatuses = [
+    200,
+    203,
+    204,
+    300,
+    301,
+    302,
+    303,
+    307,
+    308,
+    404,
+    405,
+    410,
+    414,
+    501,
+];
+
+const hopByHopHeaders = {
+    date: true, // included, because we add Age update Date
+    connection: true,
+    'keep-alive': true,
+    'proxy-authenticate': true,
+    'proxy-authorization': true,
+    te: true,
+    trailer: true,
+    'transfer-encoding': true,
+    upgrade: true,
+};
+const excludedFromRevalidationUpdate = {
+    // Since the old body is reused, it doesn't make sense to change properties of the body
+    'content-length': true,
+    'content-encoding': true,
+    'transfer-encoding': true,
+    'content-range': true,
+};
+
+function parseCacheControl(header) {
+    const cc = {};
+    if (!header) return cc;
+
+    // TODO: When there is more than one value present for a given directive (e.g., two Expires header fields, multiple Cache-Control: max-age directives),
+    // the directive's value is considered invalid. Caches are encouraged to consider responses that have invalid freshness information to be stale
+    const parts = header.trim().split(/\s*,\s*/); // TODO: lame parsing
+    for (const part of parts) {
+        const [k, v] = part.split(/\s*=\s*/, 2);
+        cc[k] = v === undefined ? true : v.replace(/^"|"$/g, ''); // TODO: lame unquoting
+    }
+
+    return cc;
+}
+
+function formatCacheControl(cc) {
+    let parts = [];
+    for (const k in cc) {
+        const v = cc[k];
+        parts.push(v === true ? k : k + '=' + v);
+    }
+    if (!parts.length) {
+        return undefined;
+    }
+    return parts.join(', ');
+}
+
+module.exports = class CachePolicy {
+    constructor(
+        req,
+        res,
+        {
+            shared,
+            cacheHeuristic,
+            immutableMinTimeToLive,
+            ignoreCargoCult,
+            trustServerDate,
+            _fromObject,
+        } = {}
+    ) {
+        if (_fromObject) {
+            this._fromObject(_fromObject);
+            return;
+        }
+
+        if (!res || !res.headers) {
+            throw Error('Response headers missing');
+        }
+        this._assertRequestHasHeaders(req);
+
+        this._responseTime = this.now();
+        this._isShared = shared !== false;
+        this._trustServerDate =
+            undefined !== trustServerDate ? trustServerDate : true;
+        this._cacheHeuristic =
+            undefined !== cacheHeuristic ? cacheHeuristic : 0.1; // 10% matches IE
+        this._immutableMinTtl =
+            undefined !== immutableMinTimeToLive
+                ? immutableMinTimeToLive
+                : 24 * 3600 * 1000;
+
+        this._status = 'status' in res ? res.status : 200;
+        this._resHeaders = res.headers;
+        this._rescc = parseCacheControl(res.headers['cache-control']);
+        this._method = 'method' in req ? req.method : 'GET';
+        this._url = req.url;
+        this._host = req.headers.host;
+        this._noAuthorization = !req.headers.authorization;
+        this._reqHeaders = res.headers.vary ? req.headers : null; // Don't keep all request headers if they won't be used
+        this._reqcc = parseCacheControl(req.headers['cache-control']);
+
+        // Assume that if someone uses legacy, non-standard uncecessary options they don't understand caching,
+        // so there's no point stricly adhering to the blindly copy&pasted directives.
+        if (
+            ignoreCargoCult &&
+            'pre-check' in this._rescc &&
+            'post-check' in this._rescc
+        ) {
+            delete this._rescc['pre-check'];
+            delete this._rescc['post-check'];
+            delete this._rescc['no-cache'];
+            delete this._rescc['no-store'];
+            delete this._rescc['must-revalidate'];
+            this._resHeaders = Object.assign({}, this._resHeaders, {
+                'cache-control': formatCacheControl(this._rescc),
+            });
+            delete this._resHeaders.expires;
+            delete this._resHeaders.pragma;
+        }
+
+        // When the Cache-Control header field is not present in a request, caches MUST consider the no-cache request pragma-directive
+        // as having the same effect as if "Cache-Control: no-cache" were present (see Section 5.2.1).
+        if (
+            res.headers['cache-control'] == null &&
+            /no-cache/.test(res.headers.pragma)
+        ) {
+            this._rescc['no-cache'] = true;
+        }
+    }
+
+    now() {
+        return Date.now();
+    }
+
+    storable() {
+        // The "no-store" request directive indicates that a cache MUST NOT store any part of either this request or any response to it.
+        return !!(
+            !this._reqcc['no-store'] &&
+            // A cache MUST NOT store a response to any request, unless:
+            // The request method is understood by the cache and defined as being cacheable, and
+            ('GET' === this._method ||
+                'HEAD' === this._method ||
+                ('POST' === this._method && this._hasExplicitExpiration())) &&
+            // the response status code is understood by the cache, and
+            understoodStatuses.indexOf(this._status) !== -1 &&
+            // the "no-store" cache directive does not appear in request or response header fields, and
+            !this._rescc['no-store'] &&
+            // the "private" response directive does not appear in the response, if the cache is shared, and
+            (!this._isShared || !this._rescc.private) &&
+            // the Authorization header field does not appear in the request, if the cache is shared,
+            (!this._isShared ||
+                this._noAuthorization ||
+                this._allowsStoringAuthenticated()) &&
+            // the response either:
+            // contains an Expires header field, or
+            (this._resHeaders.expires ||
+                // contains a max-age response directive, or
+                // contains a s-maxage response directive and the cache is shared, or
+                // contains a public response directive.
+                this._rescc.public ||
+                this._rescc['max-age'] ||
+                this._rescc['s-maxage'] ||
+                // has a status code that is defined as cacheable by default
+                statusCodeCacheableByDefault.indexOf(this._status) !== -1)
+        );
+    }
+
+    _hasExplicitExpiration() {
+        // 4.2.1 Calculating Freshness Lifetime
+        return (
+            (this._isShared && this._rescc['s-maxage']) ||
+            this._rescc['max-age'] ||
+            this._resHeaders.expires
+        );
+    }
+
+    _assertRequestHasHeaders(req) {
+        if (!req || !req.headers) {
+            throw Error('Request headers missing');
+        }
+    }
+
+    satisfiesWithoutRevalidation(req) {
+        this._assertRequestHasHeaders(req);
+
+        // When presented with a request, a cache MUST NOT reuse a stored response, unless:
+        // the presented request does not contain the no-cache pragma (Section 5.4), nor the no-cache cache directive,
+        // unless the stored response is successfully validated (Section 4.3), and
+        const requestCC = parseCacheControl(req.headers['cache-control']);
+        if (requestCC['no-cache'] || /no-cache/.test(req.headers.pragma)) {
+            return false;
+        }
+
+        if (requestCC['max-age'] && this.age() > requestCC['max-age']) {
+            return false;
+        }
+
+        if (
+            requestCC['min-fresh'] &&
+            this.timeToLive() < 1000 * requestCC['min-fresh']
+        ) {
+            return false;
+        }
+
+        // the stored response is either:
+        // fresh, or allowed to be served stale
+        if (this.stale()) {
+            const allowsStale =
+                requestCC['max-stale'] &&
+                !this._rescc['must-revalidate'] &&
+                (true === requestCC['max-stale'] ||
+                    requestCC['max-stale'] > this.age() - this.maxAge());
+            if (!allowsStale) {
+                return false;
+            }
+        }
+
+        return this._requestMatches(req, false);
+    }
+
+    _requestMatches(req, allowHeadMethod) {
+        // The presented effective request URI and that of the stored response match, and
+        return (
+            (!this._url || this._url === req.url) &&
+            this._host === req.headers.host &&
+            // the request method associated with the stored response allows it to be used for the presented request, and
+            (!req.method ||
+                this._method === req.method ||
+                (allowHeadMethod && 'HEAD' === req.method)) &&
+            // selecting header fields nominated by the stored response (if any) match those presented, and
+            this._varyMatches(req)
+        );
+    }
+
+    _allowsStoringAuthenticated() {
+        //  following Cache-Control response directives (Section 5.2.2) have such an effect: must-revalidate, public, and s-maxage.
+        return (
+            this._rescc['must-revalidate'] ||
+            this._rescc.public ||
+            this._rescc['s-maxage']
+        );
+    }
+
+    _varyMatches(req) {
+        if (!this._resHeaders.vary) {
+            return true;
+        }
+
+        // A Vary header field-value of "*" always fails to match
+        if (this._resHeaders.vary === '*') {
+            return false;
+        }
+
+        const fields = this._resHeaders.vary
+            .trim()
+            .toLowerCase()
+            .split(/\s*,\s*/);
+        for (const name of fields) {
+            if (req.headers[name] !== this._reqHeaders[name]) return false;
+        }
+        return true;
+    }
+
+    _copyWithoutHopByHopHeaders(inHeaders) {
+        const headers = {};
+        for (const name in inHeaders) {
+            if (hopByHopHeaders[name]) continue;
+            headers[name] = inHeaders[name];
+        }
+        // 9.1.  Connection
+        if (inHeaders.connection) {
+            const tokens = inHeaders.connection.trim().split(/\s*,\s*/);
+            for (const name of tokens) {
+                delete headers[name];
+            }
+        }
+        if (headers.warning) {
+            const warnings = headers.warning.split(/,/).filter(warning => {
+                return !/^\s*1[0-9][0-9]/.test(warning);
+            });
+            if (!warnings.length) {
+                delete headers.warning;
+            } else {
+                headers.warning = warnings.join(',').trim();
+            }
+        }
+        return headers;
+    }
+
+    responseHeaders() {
+        const headers = this._copyWithoutHopByHopHeaders(this._resHeaders);
+        const age = this.age();
+
+        // A cache SHOULD generate 113 warning if it heuristically chose a freshness
+        // lifetime greater than 24 hours and the response's age is greater than 24 hours.
+        if (
+            age > 3600 * 24 &&
+            !this._hasExplicitExpiration() &&
+            this.maxAge() > 3600 * 24
+        ) {
+            headers.warning =
+                (headers.warning ? `${headers.warning}, ` : '') +
+                '113 - "rfc7234 5.5.4"';
+        }
+        headers.age = `${Math.round(age)}`;
+        headers.date = new Date(this.now()).toUTCString();
+        return headers;
+    }
+
+    /**
+     * Value of the Date response header or current time if Date was demed invalid
+     * @return timestamp
+     */
+    date() {
+        if (this._trustServerDate) {
+            return this._serverDate();
+        }
+        return this._responseTime;
+    }
+
+    _serverDate() {
+        const dateValue = Date.parse(this._resHeaders.date);
+        if (isFinite(dateValue)) {
+            const maxClockDrift = 8 * 3600 * 1000;
+            const clockDrift = Math.abs(this._responseTime - dateValue);
+            if (clockDrift < maxClockDrift) {
+                return dateValue;
+            }
+        }
+        return this._responseTime;
+    }
+
+    /**
+     * Value of the Age header, in seconds, updated for the current time.
+     * May be fractional.
+     *
+     * @return Number
+     */
+    age() {
+        let age = Math.max(0, (this._responseTime - this.date()) / 1000);
+        if (this._resHeaders.age) {
+            let ageValue = this._ageValue();
+            if (ageValue > age) age = ageValue;
+        }
+
+        const residentTime = (this.now() - this._responseTime) / 1000;
+        return age + residentTime;
+    }
+
+    _ageValue() {
+        const ageValue = parseInt(this._resHeaders.age);
+        return isFinite(ageValue) ? ageValue : 0;
+    }
+
+    /**
+     * Value of applicable max-age (or heuristic equivalent) in seconds. This counts since response's `Date`.
+     *
+     * For an up-to-date value, see `timeToLive()`.
+     *
+     * @return Number
+     */
+    maxAge() {
+        if (!this.storable() || this._rescc['no-cache']) {
+            return 0;
+        }
+
+        // Shared responses with cookies are cacheable according to the RFC, but IMHO it'd be unwise to do so by default
+        // so this implementation requires explicit opt-in via public header
+        if (
+            this._isShared &&
+            (this._resHeaders['set-cookie'] &&
+                !this._rescc.public &&
+                !this._rescc.immutable)
+        ) {
+            return 0;
+        }
+
+        if (this._resHeaders.vary === '*') {
+            return 0;
+        }
+
+        if (this._isShared) {
+            if (this._rescc['proxy-revalidate']) {
+                return 0;
+            }
+            // if a response includes the s-maxage directive, a shared cache recipient MUST ignore the Expires field.
+            if (this._rescc['s-maxage']) {
+                return parseInt(this._rescc['s-maxage'], 10);
+            }
+        }
+
+        // If a response includes a Cache-Control field with the max-age directive, a recipient MUST ignore the Expires field.
+        if (this._rescc['max-age']) {
+            return parseInt(this._rescc['max-age'], 10);
+        }
+
+        const defaultMinTtl = this._rescc.immutable ? this._immutableMinTtl : 0;
+
+        const dateValue = this._serverDate();
+        if (this._resHeaders.expires) {
+            const expires = Date.parse(this._resHeaders.expires);
+            // A cache recipient MUST interpret invalid date formats, especially the value "0", as representing a time in the past (i.e., "already expired").
+            if (Number.isNaN(expires) || expires < dateValue) {
+                return 0;
+            }
+            return Math.max(defaultMinTtl, (expires - dateValue) / 1000);
+        }
+
+        if (this._resHeaders['last-modified']) {
+            const lastModified = Date.parse(this._resHeaders['last-modified']);
+            if (isFinite(lastModified) && dateValue > lastModified) {
+                return Math.max(
+                    defaultMinTtl,
+                    ((dateValue - lastModified) / 1000) * this._cacheHeuristic
+                );
+            }
+        }
+
+        return defaultMinTtl;
+    }
+
+    timeToLive() {
+        return Math.max(0, this.maxAge() - this.age()) * 1000;
+    }
+
+    stale() {
+        return this.maxAge() <= this.age();
+    }
+
+    static fromObject(obj) {
+        return new this(undefined, undefined, { _fromObject: obj });
+    }
+
+    _fromObject(obj) {
+        if (this._responseTime) throw Error('Reinitialized');
+        if (!obj || obj.v !== 1) throw Error('Invalid serialization');
+
+        this._responseTime = obj.t;
+        this._isShared = obj.sh;
+        this._cacheHeuristic = obj.ch;
+        this._immutableMinTtl =
+            obj.imm !== undefined ? obj.imm : 24 * 3600 * 1000;
+        this._status = obj.st;
+        this._resHeaders = obj.resh;
+        this._rescc = obj.rescc;
+        this._method = obj.m;
+        this._url = obj.u;
+        this._host = obj.h;
+        this._noAuthorization = obj.a;
+        this._reqHeaders = obj.reqh;
+        this._reqcc = obj.reqcc;
+    }
+
+    toObject() {
+        return {
+            v: 1,
+            t: this._responseTime,
+            sh: this._isShared,
+            ch: this._cacheHeuristic,
+            imm: this._immutableMinTtl,
+            st: this._status,
+            resh: this._resHeaders,
+            rescc: this._rescc,
+            m: this._method,
+            u: this._url,
+            h: this._host,
+            a: this._noAuthorization,
+            reqh: this._reqHeaders,
+            reqcc: this._reqcc,
+        };
+    }
+
+    /**
+     * Headers for sending to the origin server to revalidate stale response.
+     * Allows server to return 304 to allow reuse of the previous response.
+     *
+     * Hop by hop headers are always stripped.
+     * Revalidation headers may be added or removed, depending on request.
+     */
+    revalidationHeaders(incomingReq) {
+        this._assertRequestHasHeaders(incomingReq);
+        const headers = this._copyWithoutHopByHopHeaders(incomingReq.headers);
+
+        // This implementation does not understand range requests
+        delete headers['if-range'];
+
+        if (!this._requestMatches(incomingReq, true) || !this.storable()) {
+            // revalidation allowed via HEAD
+            // not for the same resource, or wasn't allowed to be cached anyway
+            delete headers['if-none-match'];
+            delete headers['if-modified-since'];
+            return headers;
+        }
+
+        /* MUST send that entity-tag in any cache validation request (using If-Match or If-None-Match) if an entity-tag has been provided by the origin server. */
+        if (this._resHeaders.etag) {
+            headers['if-none-match'] = headers['if-none-match']
+                ? `${headers['if-none-match']}, ${this._resHeaders.etag}`
+                : this._resHeaders.etag;
+        }
+
+        // Clients MAY issue simple (non-subrange) GET requests with either weak validators or strong validators. Clients MUST NOT use weak validators in other forms of request.
+        const forbidsWeakValidators =
+            headers['accept-ranges'] ||
+            headers['if-match'] ||
+            headers['if-unmodified-since'] ||
+            (this._method && this._method != 'GET');
+
+        /* SHOULD send the Last-Modified value in non-subrange cache validation requests (using If-Modified-Since) if only a Last-Modified value has been provided by the origin server.
+        Note: This implementation does not understand partial responses (206) */
+        if (forbidsWeakValidators) {
+            delete headers['if-modified-since'];
+
+            if (headers['if-none-match']) {
+                const etags = headers['if-none-match']
+                    .split(/,/)
+                    .filter(etag => {
+                        return !/^\s*W\//.test(etag);
+                    });
+                if (!etags.length) {
+                    delete headers['if-none-match'];
+                } else {
+                    headers['if-none-match'] = etags.join(',').trim();
+                }
+            }
+        } else if (
+            this._resHeaders['last-modified'] &&
+            !headers['if-modified-since']
+        ) {
+            headers['if-modified-since'] = this._resHeaders['last-modified'];
+        }
+
+        return headers;
+    }
+
+    /**
+     * Creates new CachePolicy with information combined from the previews response,
+     * and the new revalidation response.
+     *
+     * Returns {policy, modified} where modified is a boolean indicating
+     * whether the response body has been modified, and old cached body can't be used.
+     *
+     * @return {Object} {policy: CachePolicy, modified: Boolean}
+     */
+    revalidatedPolicy(request, response) {
+        this._assertRequestHasHeaders(request);
+        if (!response || !response.headers) {
+            throw Error('Response headers missing');
+        }
+
+        // These aren't going to be supported exactly, since one CachePolicy object
+        // doesn't know about all the other cached objects.
+        let matches = false;
+        if (response.status !== undefined && response.status != 304) {
+            matches = false;
+        } else if (
+            response.headers.etag &&
+            !/^\s*W\//.test(response.headers.etag)
+        ) {
+            // "All of the stored responses with the same strong validator are selected.
+            // If none of the stored responses contain the same strong validator,
+            // then the cache MUST NOT use the new response to update any stored responses."
+            matches =
+                this._resHeaders.etag &&
+                this._resHeaders.etag.replace(/^\s*W\//, '') ===
+                    response.headers.etag;
+        } else if (this._resHeaders.etag && response.headers.etag) {
+            // "If the new response contains a weak validator and that validator corresponds
+            // to one of the cache's stored responses,
+            // then the most recent of those matching stored responses is selected for update."
+            matches =
+                this._resHeaders.etag.replace(/^\s*W\//, '') ===
+                response.headers.etag.replace(/^\s*W\//, '');
+        } else if (this._resHeaders['last-modified']) {
+            matches =
+                this._resHeaders['last-modified'] ===
+                response.headers['last-modified'];
+        } else {
+            // If the new response does not include any form of validator (such as in the case where
+            // a client generates an If-Modified-Since request from a source other than the Last-Modified
+            // response header field), and there is only one stored response, and that stored response also
+            // lacks a validator, then that stored response is selected for update.
+            if (
+                !this._resHeaders.etag &&
+                !this._resHeaders['last-modified'] &&
+                !response.headers.etag &&
+                !response.headers['last-modified']
+            ) {
+                matches = true;
+            }
+        }
+
+        if (!matches) {
+            return {
+                policy: new this.constructor(request, response),
+                // Client receiving 304 without body, even if it's invalid/mismatched has no option
+                // but to reuse a cached body. We don't have a good way to tell clients to do
+                // error recovery in such case.
+                modified: response.status != 304,
+                matches: false,
+            };
+        }
+
+        // use other header fields provided in the 304 (Not Modified) response to replace all instances
+        // of the corresponding header fields in the stored response.
+        const headers = {};
+        for (const k in this._resHeaders) {
+            headers[k] =
+                k in response.headers && !excludedFromRevalidationUpdate[k]
+                    ? response.headers[k]
+                    : this._resHeaders[k];
+        }
+
+        const newResponse = Object.assign({}, response, {
+            status: this._status,
+            method: this._method,
+            headers,
+        });
+        return {
+            policy: new this.constructor(request, newResponse, {
+                shared: this._isShared,
+                cacheHeuristic: this._cacheHeuristic,
+                immutableMinTimeToLive: this._immutableMinTtl,
+                trustServerDate: this._trustServerDate,
+            }),
+            modified: false,
+            matches: true,
+        };
+    }
+};
diff --git a/helloworld/node_modules/indexof/Makefile b/helloworld/node_modules/indexof/Makefile
new file mode 100755
index 0000000..3f6119d
--- /dev/null
+++ b/helloworld/node_modules/indexof/Makefile
@@ -0,0 +1,11 @@
+
+build: components index.js
+	@component build
+
+components:
+	@Component install
+
+clean:
+	rm -fr build components template.js
+
+.PHONY: clean
diff --git a/helloworld/node_modules/indexof/Readme.md b/helloworld/node_modules/indexof/Readme.md
new file mode 100755
index 0000000..99c8dfc
--- /dev/null
+++ b/helloworld/node_modules/indexof/Readme.md
@@ -0,0 +1,15 @@
+
+# indexOf
+
+  Lame indexOf thing, thanks microsoft
+
+## Example
+
+```js
+var index = require('indexof');
+index(arr, obj);
+```
+
+## License
+
+  MIT
\ No newline at end of file
diff --git a/helloworld/node_modules/indexof/component.json b/helloworld/node_modules/indexof/component.json
new file mode 100755
index 0000000..e3430d7
--- /dev/null
+++ b/helloworld/node_modules/indexof/component.json
@@ -0,0 +1,10 @@
+{
+  "name": "indexof",
+  "description": "Microsoft sucks",
+  "version": "0.0.1",
+  "keywords": ["index", "array", "indexOf"],
+  "dependencies": {},
+  "scripts": [
+    "index.js"
+  ]
+}
\ No newline at end of file
diff --git a/helloworld/node_modules/indexof/index.js b/helloworld/node_modules/indexof/index.js
new file mode 100755
index 0000000..9d9667b
--- /dev/null
+++ b/helloworld/node_modules/indexof/index.js
@@ -0,0 +1,10 @@
+
+var indexOf = [].indexOf;
+
+module.exports = function(arr, obj){
+  if (indexOf) return arr.indexOf(obj);
+  for (var i = 0; i < arr.length; ++i) {
+    if (arr[i] === obj) return i;
+  }
+  return -1;
+};
\ No newline at end of file
diff --git a/helloworld/node_modules/indexof/package.json b/helloworld/node_modules/indexof/package.json
new file mode 100755
index 0000000..8cb13bf
--- /dev/null
+++ b/helloworld/node_modules/indexof/package.json
@@ -0,0 +1,42 @@
+{
+  "_from": "indexof@0.0.1",
+  "_id": "indexof@0.0.1",
+  "_inBundle": false,
+  "_integrity": "sha1-gtwzbSMrkGIXnQWrMpOmYFn9Q10=",
+  "_location": "/indexof",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "indexof@0.0.1",
+    "name": "indexof",
+    "escapedName": "indexof",
+    "rawSpec": "0.0.1",
+    "saveSpec": null,
+    "fetchSpec": "0.0.1"
+  },
+  "_requiredBy": [
+    "/engine.io-client",
+    "/socket.io-client"
+  ],
+  "_resolved": "https://registry.npmjs.org/indexof/-/indexof-0.0.1.tgz",
+  "_shasum": "82dc336d232b9062179d05ab3293a66059fd435d",
+  "_spec": "indexof@0.0.1",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/socket.io-client",
+  "bundleDependencies": false,
+  "component": {
+    "scripts": {
+      "indexof/index.js": "index.js"
+    }
+  },
+  "dependencies": {},
+  "deprecated": false,
+  "description": "Microsoft sucks",
+  "keywords": [
+    "index",
+    "array",
+    "indexOf"
+  ],
+  "name": "indexof",
+  "version": "0.0.1"
+}
diff --git a/helloworld/node_modules/invert-kv/index.js b/helloworld/node_modules/invert-kv/index.js
new file mode 100755
index 0000000..61e2196
--- /dev/null
+++ b/helloworld/node_modules/invert-kv/index.js
@@ -0,0 +1,15 @@
+'use strict';
+module.exports = function (obj) {
+	if (typeof obj !== 'object') {
+		throw new TypeError('Expected an object');
+	}
+
+	var ret = {};
+
+	for (var key in obj) {
+		var val = obj[key];
+		ret[val] = key;
+	}
+
+	return ret;
+};
diff --git a/helloworld/node_modules/invert-kv/readme.md b/helloworld/node_modules/invert-kv/readme.md
new file mode 100755
index 0000000..039fc7c
--- /dev/null
+++ b/helloworld/node_modules/invert-kv/readme.md
@@ -0,0 +1,25 @@
+# invert-kv [![Build Status](https://travis-ci.org/sindresorhus/invert-kv.svg?branch=master)](https://travis-ci.org/sindresorhus/invert-kv)
+
+> Invert the key/value of an object. Example: `{foo: 'bar'}` → `{bar: 'foo'}`
+
+
+## Install
+
+```sh
+$ npm install --save invert-kv
+```
+
+
+## Usage
+
+```js
+var invertKv = require('invert-kv');
+
+invertKv({foo: 'bar', unicorn: 'rainbow'});
+//=> {bar: 'foo', rainbow: 'unicorn'}
+```
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/ip-regex/index.js b/helloworld/node_modules/ip-regex/index.js
new file mode 100755
index 0000000..973e5f4
--- /dev/null
+++ b/helloworld/node_modules/ip-regex/index.js
@@ -0,0 +1,24 @@
+'use strict';
+
+const v4 = '(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])(?:\\.(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])){3}';
+
+const v6seg = '[0-9a-fA-F]{1,4}';
+const v6 = `
+(
+(?:${v6seg}:){7}(?:${v6seg}|:)|                                // 1:2:3:4:5:6:7::  1:2:3:4:5:6:7:8
+(?:${v6seg}:){6}(?:${v4}|:${v6seg}|:)|                         // 1:2:3:4:5:6::    1:2:3:4:5:6::8   1:2:3:4:5:6::8  1:2:3:4:5:6::1.2.3.4
+(?:${v6seg}:){5}(?::${v4}|(:${v6seg}){1,2}|:)|                 // 1:2:3:4:5::      1:2:3:4:5::7:8   1:2:3:4:5::8    1:2:3:4:5::7:1.2.3.4
+(?:${v6seg}:){4}(?:(:${v6seg}){0,1}:${v4}|(:${v6seg}){1,3}|:)| // 1:2:3:4::        1:2:3:4::6:7:8   1:2:3:4::8      1:2:3:4::6:7:1.2.3.4
+(?:${v6seg}:){3}(?:(:${v6seg}){0,2}:${v4}|(:${v6seg}){1,4}|:)| // 1:2:3::          1:2:3::5:6:7:8   1:2:3::8        1:2:3::5:6:7:1.2.3.4
+(?:${v6seg}:){2}(?:(:${v6seg}){0,3}:${v4}|(:${v6seg}){1,5}|:)| // 1:2::            1:2::4:5:6:7:8   1:2::8          1:2::4:5:6:7:1.2.3.4
+(?:${v6seg}:){1}(?:(:${v6seg}){0,4}:${v4}|(:${v6seg}){1,6}|:)| // 1::              1::3:4:5:6:7:8   1::8            1::3:4:5:6:7:1.2.3.4
+(?::((?::${v6seg}){0,5}:${v4}|(?::${v6seg}){1,7}|:))           // ::2:3:4:5:6:7:8  ::2:3:4:5:6:7:8  ::8             ::1.2.3.4
+)(%[0-9a-zA-Z]{1,})?                                           // %eth0            %1
+`.replace(/\s*\/\/.*$/gm, '').replace(/\n/g, '').trim();
+
+const ip = module.exports = opts => opts && opts.exact ?
+	new RegExp(`(?:^${v4}$)|(?:^${v6}$)`) :
+	new RegExp(`(?:${v4})|(?:${v6})`, 'g');
+
+ip.v4 = opts => opts && opts.exact ? new RegExp(`^${v4}$`) : new RegExp(v4, 'g');
+ip.v6 = opts => opts && opts.exact ? new RegExp(`^${v6}$`) : new RegExp(v6, 'g');
diff --git a/helloworld/node_modules/ip-regex/license b/helloworld/node_modules/ip-regex/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/ip-regex/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/ip-regex/readme.md b/helloworld/node_modules/ip-regex/readme.md
new file mode 100755
index 0000000..66bc7f2
--- /dev/null
+++ b/helloworld/node_modules/ip-regex/readme.md
@@ -0,0 +1,63 @@
+# ip-regex [![Build Status](https://travis-ci.org/sindresorhus/ip-regex.svg?branch=master)](https://travis-ci.org/sindresorhus/ip-regex)
+
+> Regular expression for matching IP addresses
+
+
+## Install
+
+```
+$ npm install --save ip-regex
+```
+
+
+## Usage
+
+```js
+const ipRegex = require('ip-regex');
+
+// Contains an IP address?
+ipRegex().test('unicorn 192.168.0.1');
+//=> true
+
+// Is an IP address?
+ipRegex({exact: true}).test('unicorn 192.168.0.1');
+//=> false
+
+ipRegex.v6({exact: true}).test('1:2:3:4:5:6:7:8');
+//=> true
+
+'unicorn 192.168.0.1 cake 1:2:3:4:5:6:7:8 rainbow'.match(ipRegex());
+//=> ['192.168.0.1', '1:2:3:4:5:6:7:8']
+```
+
+
+## API
+
+### ipRegex([options])
+
+Returns a regex for matching both IPv4 and IPv6.
+
+### ipRegex.v4([options])
+
+Returns a regex for matching IPv4.
+
+### ipRegex.v6([options])
+
+Returns a regex for matching IPv6.
+
+#### options.exact
+
+Type: `boolean`<br>
+Default: `false` *(Matches any IP address in a string)*
+
+Only match an exact string. Useful with `RegExp#test()` to check if a string is an IP address.
+
+
+## Related
+
+- [is-ip](https://github.com/sindresorhus/is-ip) - Check if a string is an IP address
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/helloworld/node_modules/ip/README.md b/helloworld/node_modules/ip/README.md
new file mode 100755
index 0000000..22e5819
--- /dev/null
+++ b/helloworld/node_modules/ip/README.md
@@ -0,0 +1,90 @@
+# IP  
+[![](https://badge.fury.io/js/ip.svg)](https://www.npmjs.com/package/ip)  
+
+IP address utilities for node.js
+
+## Installation
+
+###  npm
+```shell
+npm install ip
+```
+
+### git
+
+```shell
+git clone https://github.com/indutny/node-ip.git
+```
+  
+## Usage
+Get your ip address, compare ip addresses, validate ip addresses, etc.
+
+```js
+var ip = require('ip');
+
+ip.address() // my ip address
+ip.isEqual('::1', '::0:1'); // true
+ip.toBuffer('127.0.0.1') // Buffer([127, 0, 0, 1])
+ip.toString(new Buffer([127, 0, 0, 1])) // 127.0.0.1
+ip.fromPrefixLen(24) // 255.255.255.0
+ip.mask('192.168.1.134', '255.255.255.0') // 192.168.1.0
+ip.cidr('192.168.1.134/26') // 192.168.1.128
+ip.not('255.255.255.0') // 0.0.0.255
+ip.or('192.168.1.134', '0.0.0.255') // 192.168.1.255
+ip.isPrivate('127.0.0.1') // true
+ip.isV4Format('127.0.0.1'); // true
+ip.isV6Format('::ffff:127.0.0.1'); // true
+
+// operate on buffers in-place
+var buf = new Buffer(128);
+var offset = 64;
+ip.toBuffer('127.0.0.1', buf, offset);  // [127, 0, 0, 1] at offset 64
+ip.toString(buf, offset, 4);            // '127.0.0.1'
+
+// subnet information
+ip.subnet('192.168.1.134', '255.255.255.192')
+// { networkAddress: '192.168.1.128',
+//   firstAddress: '192.168.1.129',
+//   lastAddress: '192.168.1.190',
+//   broadcastAddress: '192.168.1.191',
+//   subnetMask: '255.255.255.192',
+//   subnetMaskLength: 26,
+//   numHosts: 62,
+//   length: 64,
+//   contains: function(addr){...} }
+ip.cidrSubnet('192.168.1.134/26')
+// Same as previous.
+
+// range checking
+ip.cidrSubnet('192.168.1.134/26').contains('192.168.1.190') // true
+
+
+// ipv4 long conversion
+ip.toLong('127.0.0.1'); // 2130706433
+ip.fromLong(2130706433); // '127.0.0.1'
+```
+
+### License
+
+This software is licensed under the MIT License.
+
+Copyright Fedor Indutny, 2012.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to permit
+persons to whom the Software is furnished to do so, subject to the
+following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/ip/lib/ip.js b/helloworld/node_modules/ip/lib/ip.js
new file mode 100755
index 0000000..c1799a8
--- /dev/null
+++ b/helloworld/node_modules/ip/lib/ip.js
@@ -0,0 +1,416 @@
+'use strict';
+
+var ip = exports;
+var Buffer = require('buffer').Buffer;
+var os = require('os');
+
+ip.toBuffer = function(ip, buff, offset) {
+  offset = ~~offset;
+
+  var result;
+
+  if (this.isV4Format(ip)) {
+    result = buff || new Buffer(offset + 4);
+    ip.split(/\./g).map(function(byte) {
+      result[offset++] = parseInt(byte, 10) & 0xff;
+    });
+  } else if (this.isV6Format(ip)) {
+    var sections = ip.split(':', 8);
+
+    var i;
+    for (i = 0; i < sections.length; i++) {
+      var isv4 = this.isV4Format(sections[i]);
+      var v4Buffer;
+
+      if (isv4) {
+        v4Buffer = this.toBuffer(sections[i]);
+        sections[i] = v4Buffer.slice(0, 2).toString('hex');
+      }
+
+      if (v4Buffer && ++i < 8) {
+        sections.splice(i, 0, v4Buffer.slice(2, 4).toString('hex'));
+      }
+    }
+
+    if (sections[0] === '') {
+      while (sections.length < 8) sections.unshift('0');
+    } else if (sections[sections.length - 1] === '') {
+      while (sections.length < 8) sections.push('0');
+    } else if (sections.length < 8) {
+      for (i = 0; i < sections.length && sections[i] !== ''; i++);
+      var argv = [ i, 1 ];
+      for (i = 9 - sections.length; i > 0; i--) {
+        argv.push('0');
+      }
+      sections.splice.apply(sections, argv);
+    }
+
+    result = buff || new Buffer(offset + 16);
+    for (i = 0; i < sections.length; i++) {
+      var word = parseInt(sections[i], 16);
+      result[offset++] = (word >> 8) & 0xff;
+      result[offset++] = word & 0xff;
+    }
+  }
+
+  if (!result) {
+    throw Error('Invalid ip address: ' + ip);
+  }
+
+  return result;
+};
+
+ip.toString = function(buff, offset, length) {
+  offset = ~~offset;
+  length = length || (buff.length - offset);
+
+  var result = [];
+  if (length === 4) {
+    // IPv4
+    for (var i = 0; i < length; i++) {
+      result.push(buff[offset + i]);
+    }
+    result = result.join('.');
+  } else if (length === 16) {
+    // IPv6
+    for (var i = 0; i < length; i += 2) {
+      result.push(buff.readUInt16BE(offset + i).toString(16));
+    }
+    result = result.join(':');
+    result = result.replace(/(^|:)0(:0)*:0(:|$)/, '$1::$3');
+    result = result.replace(/:{3,4}/, '::');
+  }
+
+  return result;
+};
+
+var ipv4Regex = /^(\d{1,3}\.){3,3}\d{1,3}$/;
+var ipv6Regex =
+    /^(::)?(((\d{1,3}\.){3}(\d{1,3}){1})?([0-9a-f]){0,4}:{0,2}){1,8}(::)?$/i;
+
+ip.isV4Format = function(ip) {
+  return ipv4Regex.test(ip);
+};
+
+ip.isV6Format = function(ip) {
+  return ipv6Regex.test(ip);
+};
+function _normalizeFamily(family) {
+  return family ? family.toLowerCase() : 'ipv4';
+}
+
+ip.fromPrefixLen = function(prefixlen, family) {
+  if (prefixlen > 32) {
+    family = 'ipv6';
+  } else {
+    family = _normalizeFamily(family);
+  }
+
+  var len = 4;
+  if (family === 'ipv6') {
+    len = 16;
+  }
+  var buff = new Buffer(len);
+
+  for (var i = 0, n = buff.length; i < n; ++i) {
+    var bits = 8;
+    if (prefixlen < 8) {
+      bits = prefixlen;
+    }
+    prefixlen -= bits;
+
+    buff[i] = ~(0xff >> bits) & 0xff;
+  }
+
+  return ip.toString(buff);
+};
+
+ip.mask = function(addr, mask) {
+  addr = ip.toBuffer(addr);
+  mask = ip.toBuffer(mask);
+
+  var result = new Buffer(Math.max(addr.length, mask.length));
+
+  var i = 0;
+  // Same protocol - do bitwise and
+  if (addr.length === mask.length) {
+    for (i = 0; i < addr.length; i++) {
+      result[i] = addr[i] & mask[i];
+    }
+  } else if (mask.length === 4) {
+    // IPv6 address and IPv4 mask
+    // (Mask low bits)
+    for (i = 0; i < mask.length; i++) {
+      result[i] = addr[addr.length - 4  + i] & mask[i];
+    }
+  } else {
+    // IPv6 mask and IPv4 addr
+    for (var i = 0; i < result.length - 6; i++) {
+      result[i] = 0;
+    }
+
+    // ::ffff:ipv4
+    result[10] = 0xff;
+    result[11] = 0xff;
+    for (i = 0; i < addr.length; i++) {
+      result[i + 12] = addr[i] & mask[i + 12];
+    }
+    i = i + 12;
+  }
+  for (; i < result.length; i++)
+    result[i] = 0;
+
+  return ip.toString(result);
+};
+
+ip.cidr = function(cidrString) {
+  var cidrParts = cidrString.split('/');
+
+  var addr = cidrParts[0];
+  if (cidrParts.length !== 2)
+    throw new Error('invalid CIDR subnet: ' + addr);
+
+  var mask = ip.fromPrefixLen(parseInt(cidrParts[1], 10));
+
+  return ip.mask(addr, mask);
+};
+
+ip.subnet = function(addr, mask) {
+  var networkAddress = ip.toLong(ip.mask(addr, mask));
+
+  // Calculate the mask's length.
+  var maskBuffer = ip.toBuffer(mask);
+  var maskLength = 0;
+
+  for (var i = 0; i < maskBuffer.length; i++) {
+    if (maskBuffer[i] === 0xff) {
+      maskLength += 8;
+    } else {
+      var octet = maskBuffer[i] & 0xff;
+      while (octet) {
+        octet = (octet << 1) & 0xff;
+        maskLength++;
+      }
+    }
+  }
+
+  var numberOfAddresses = Math.pow(2, 32 - maskLength);
+
+  return {
+    networkAddress: ip.fromLong(networkAddress),
+    firstAddress: numberOfAddresses <= 2 ?
+                    ip.fromLong(networkAddress) :
+                    ip.fromLong(networkAddress + 1),
+    lastAddress: numberOfAddresses <= 2 ?
+                    ip.fromLong(networkAddress + numberOfAddresses - 1) :
+                    ip.fromLong(networkAddress + numberOfAddresses - 2),
+    broadcastAddress: ip.fromLong(networkAddress + numberOfAddresses - 1),
+    subnetMask: mask,
+    subnetMaskLength: maskLength,
+    numHosts: numberOfAddresses <= 2 ?
+                numberOfAddresses : numberOfAddresses - 2,
+    length: numberOfAddresses,
+    contains: function(other) {
+      return networkAddress === ip.toLong(ip.mask(other, mask));
+    }
+  };
+};
+
+ip.cidrSubnet = function(cidrString) {
+  var cidrParts = cidrString.split('/');
+
+  var addr = cidrParts[0];
+  if (cidrParts.length !== 2)
+    throw new Error('invalid CIDR subnet: ' + addr);
+
+  var mask = ip.fromPrefixLen(parseInt(cidrParts[1], 10));
+
+  return ip.subnet(addr, mask);
+};
+
+ip.not = function(addr) {
+  var buff = ip.toBuffer(addr);
+  for (var i = 0; i < buff.length; i++) {
+    buff[i] = 0xff ^ buff[i];
+  }
+  return ip.toString(buff);
+};
+
+ip.or = function(a, b) {
+  a = ip.toBuffer(a);
+  b = ip.toBuffer(b);
+
+  // same protocol
+  if (a.length === b.length) {
+    for (var i = 0; i < a.length; ++i) {
+      a[i] |= b[i];
+    }
+    return ip.toString(a);
+
+  // mixed protocols
+  } else {
+    var buff = a;
+    var other = b;
+    if (b.length > a.length) {
+      buff = b;
+      other = a;
+    }
+
+    var offset = buff.length - other.length;
+    for (var i = offset; i < buff.length; ++i) {
+      buff[i] |= other[i - offset];
+    }
+
+    return ip.toString(buff);
+  }
+};
+
+ip.isEqual = function(a, b) {
+  a = ip.toBuffer(a);
+  b = ip.toBuffer(b);
+
+  // Same protocol
+  if (a.length === b.length) {
+    for (var i = 0; i < a.length; i++) {
+      if (a[i] !== b[i]) return false;
+    }
+    return true;
+  }
+
+  // Swap
+  if (b.length === 4) {
+    var t = b;
+    b = a;
+    a = t;
+  }
+
+  // a - IPv4, b - IPv6
+  for (var i = 0; i < 10; i++) {
+    if (b[i] !== 0) return false;
+  }
+
+  var word = b.readUInt16BE(10);
+  if (word !== 0 && word !== 0xffff) return false;
+
+  for (var i = 0; i < 4; i++) {
+    if (a[i] !== b[i + 12]) return false;
+  }
+
+  return true;
+};
+
+ip.isPrivate = function(addr) {
+  return /^(::f{4}:)?10\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$/i
+      .test(addr) ||
+    /^(::f{4}:)?192\.168\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
+    /^(::f{4}:)?172\.(1[6-9]|2\d|30|31)\.([0-9]{1,3})\.([0-9]{1,3})$/i
+      .test(addr) ||
+    /^(::f{4}:)?127\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
+    /^(::f{4}:)?169\.254\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
+    /^f[cd][0-9a-f]{2}:/i.test(addr) ||
+    /^fe80:/i.test(addr) ||
+    /^::1$/.test(addr) ||
+    /^::$/.test(addr);
+};
+
+ip.isPublic = function(addr) {
+  return !ip.isPrivate(addr);
+};
+
+ip.isLoopback = function(addr) {
+  return /^(::f{4}:)?127\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})/
+      .test(addr) ||
+    /^fe80::1$/.test(addr) ||
+    /^::1$/.test(addr) ||
+    /^::$/.test(addr);
+};
+
+ip.loopback = function(family) {
+  //
+  // Default to `ipv4`
+  //
+  family = _normalizeFamily(family);
+
+  if (family !== 'ipv4' && family !== 'ipv6') {
+    throw new Error('family must be ipv4 or ipv6');
+  }
+
+  return family === 'ipv4' ? '127.0.0.1' : 'fe80::1';
+};
+
+//
+// ### function address (name, family)
+// #### @name {string|'public'|'private'} **Optional** Name or security
+//      of the network interface.
+// #### @family {ipv4|ipv6} **Optional** IP family of the address (defaults
+//      to ipv4).
+//
+// Returns the address for the network interface on the current system with
+// the specified `name`:
+//   * String: First `family` address of the interface.
+//             If not found see `undefined`.
+//   * 'public': the first public ip address of family.
+//   * 'private': the first private ip address of family.
+//   * undefined: First address with `ipv4` or loopback address `127.0.0.1`.
+//
+ip.address = function(name, family) {
+  var interfaces = os.networkInterfaces();
+  var all;
+
+  //
+  // Default to `ipv4`
+  //
+  family = _normalizeFamily(family);
+
+  //
+  // If a specific network interface has been named,
+  // return the address.
+  //
+  if (name && name !== 'private' && name !== 'public') {
+    var res = interfaces[name].filter(function(details) {
+      var itemFamily = details.family.toLowerCase();
+      return itemFamily === family;
+    });
+    if (res.length === 0)
+      return undefined;
+    return res[0].address;
+  }
+
+  var all = Object.keys(interfaces).map(function (nic) {
+    //
+    // Note: name will only be `public` or `private`
+    // when this is called.
+    //
+    var addresses = interfaces[nic].filter(function (details) {
+      details.family = details.family.toLowerCase();
+      if (details.family !== family || ip.isLoopback(details.address)) {
+        return false;
+      } else if (!name) {
+        return true;
+      }
+
+      return name === 'public' ? ip.isPrivate(details.address) :
+          ip.isPublic(details.address);
+    });
+
+    return addresses.length ? addresses[0].address : undefined;
+  }).filter(Boolean);
+
+  return !all.length ? ip.loopback(family) : all[0];
+};
+
+ip.toLong = function(ip) {
+  var ipl = 0;
+  ip.split('.').forEach(function(octet) {
+    ipl <<= 8;
+    ipl += parseInt(octet);
+  });
+  return(ipl >>> 0);
+};
+
+ip.fromLong = function(ipl) {
+  return ((ipl >>> 24) + '.' +
+      (ipl >> 16 & 255) + '.' +
+      (ipl >> 8 & 255) + '.' +
+      (ipl & 255) );
+};
diff --git a/helloworld/node_modules/ip/package.json b/helloworld/node_modules/ip/package.json
new file mode 100755
index 0000000..9b70edb
--- /dev/null
+++ b/helloworld/node_modules/ip/package.json
@@ -0,0 +1,55 @@
+{
+  "_from": "ip",
+  "_id": "ip@1.1.5",
+  "_inBundle": false,
+  "_integrity": "sha1-vd7XARQpCCjAoDnnLvJfWq7ENUo=",
+  "_location": "/ip",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "tag",
+    "registry": true,
+    "raw": "ip",
+    "name": "ip",
+    "escapedName": "ip",
+    "rawSpec": "",
+    "saveSpec": null,
+    "fetchSpec": "latest"
+  },
+  "_requiredBy": [
+    "#USER",
+    "/",
+    "/dns-packet"
+  ],
+  "_resolved": "https://registry.npmjs.org/ip/-/ip-1.1.5.tgz",
+  "_shasum": "bdded70114290828c0a039e72ef25f5aaec4354a",
+  "_spec": "ip",
+  "_where": "/home/devesh/Desktop/pavanSinghal",
+  "author": {
+    "name": "Fedor Indutny",
+    "email": "fedor@indutny.com"
+  },
+  "bugs": {
+    "url": "https://github.com/indutny/node-ip/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "[![](https://badge.fury.io/js/ip.svg)](https://www.npmjs.com/package/ip)",
+  "devDependencies": {
+    "jscs": "^2.1.1",
+    "jshint": "^2.8.0",
+    "mocha": "~1.3.2"
+  },
+  "homepage": "https://github.com/indutny/node-ip",
+  "license": "MIT",
+  "main": "lib/ip",
+  "name": "ip",
+  "repository": {
+    "type": "git",
+    "url": "git+ssh://git@github.com/indutny/node-ip.git"
+  },
+  "scripts": {
+    "fix": "jscs lib/*.js test/*.js --fix",
+    "test": "jscs lib/*.js test/*.js && jshint lib/*.js && mocha --reporter spec test/*-test.js"
+  },
+  "version": "1.1.5"
+}
diff --git a/helloworld/node_modules/ip/test/api-test.js b/helloworld/node_modules/ip/test/api-test.js
new file mode 100755
index 0000000..2e390f9
--- /dev/null
+++ b/helloworld/node_modules/ip/test/api-test.js
@@ -0,0 +1,407 @@
+'use strict';
+
+var ip = require('..');
+var assert = require('assert');
+var net = require('net');
+var os = require('os');
+
+describe('IP library for node.js', function() {
+  describe('toBuffer()/toString() methods', function() {
+    it('should convert to buffer IPv4 address', function() {
+      var buf = ip.toBuffer('127.0.0.1');
+      assert.equal(buf.toString('hex'), '7f000001');
+      assert.equal(ip.toString(buf), '127.0.0.1');
+    });
+
+    it('should convert to buffer IPv4 address in-place', function() {
+      var buf = new Buffer(128);
+      var offset = 64;
+      ip.toBuffer('127.0.0.1', buf, offset);
+      assert.equal(buf.toString('hex', offset, offset + 4), '7f000001');
+      assert.equal(ip.toString(buf, offset, 4), '127.0.0.1');
+    });
+
+    it('should convert to buffer IPv6 address', function() {
+      var buf = ip.toBuffer('::1');
+      assert(/(00){15,15}01/.test(buf.toString('hex')));
+      assert.equal(ip.toString(buf), '::1');
+      assert.equal(ip.toString(ip.toBuffer('1::')), '1::');
+      assert.equal(ip.toString(ip.toBuffer('abcd::dcba')), 'abcd::dcba');
+    });
+
+    it('should convert to buffer IPv6 address in-place', function() {
+      var buf = new Buffer(128);
+      var offset = 64;
+      ip.toBuffer('::1', buf, offset);
+      assert(/(00){15,15}01/.test(buf.toString('hex', offset, offset + 16)));
+      assert.equal(ip.toString(buf, offset, 16), '::1');
+      assert.equal(ip.toString(ip.toBuffer('1::', buf, offset),
+                               offset, 16), '1::');
+      assert.equal(ip.toString(ip.toBuffer('abcd::dcba', buf, offset),
+                               offset, 16), 'abcd::dcba');
+    });
+
+    it('should convert to buffer IPv6 mapped IPv4 address', function() {
+      var buf = ip.toBuffer('::ffff:127.0.0.1');
+      assert.equal(buf.toString('hex'), '00000000000000000000ffff7f000001');
+      assert.equal(ip.toString(buf), '::ffff:7f00:1');
+
+      buf = ip.toBuffer('ffff::127.0.0.1');
+      assert.equal(buf.toString('hex'), 'ffff000000000000000000007f000001');
+      assert.equal(ip.toString(buf), 'ffff::7f00:1');
+
+      buf = ip.toBuffer('0:0:0:0:0:ffff:127.0.0.1');
+      assert.equal(buf.toString('hex'), '00000000000000000000ffff7f000001');
+      assert.equal(ip.toString(buf), '::ffff:7f00:1');
+    });
+  });
+
+  describe('fromPrefixLen() method', function() {
+    it('should create IPv4 mask', function() {
+      assert.equal(ip.fromPrefixLen(24), '255.255.255.0');
+    });
+    it('should create IPv6 mask', function() {
+      assert.equal(ip.fromPrefixLen(64), 'ffff:ffff:ffff:ffff::');
+    });
+    it('should create IPv6 mask explicitly', function() {
+      assert.equal(ip.fromPrefixLen(24, 'IPV6'), 'ffff:ff00::');
+    });
+  });
+
+  describe('not() method', function() {
+    it('should reverse bits in address', function() {
+      assert.equal(ip.not('255.255.255.0'), '0.0.0.255');
+    });
+  });
+
+  describe('or() method', function() {
+    it('should or bits in ipv4 addresses', function() {
+      assert.equal(ip.or('0.0.0.255', '192.168.1.10'), '192.168.1.255');
+    });
+    it('should or bits in ipv6 addresses', function() {
+      assert.equal(ip.or('::ff', '::abcd:dcba:abcd:dcba'),
+                   '::abcd:dcba:abcd:dcff');
+    });
+    it('should or bits in mixed addresses', function() {
+      assert.equal(ip.or('0.0.0.255', '::abcd:dcba:abcd:dcba'),
+                   '::abcd:dcba:abcd:dcff');
+    });
+  });
+
+  describe('mask() method', function() {
+    it('should mask bits in address', function() {
+      assert.equal(ip.mask('192.168.1.134', '255.255.255.0'), '192.168.1.0');
+      assert.equal(ip.mask('192.168.1.134', '::ffff:ff00'), '::ffff:c0a8:100');
+    });
+
+    it('should not leak data', function() {
+      for (var i = 0; i < 10; i++)
+        assert.equal(ip.mask('::1', '0.0.0.0'), '::');
+    });
+  });
+
+  describe('subnet() method', function() {
+    // Test cases calculated with http://www.subnet-calculator.com/
+    var ipv4Subnet = ip.subnet('192.168.1.134', '255.255.255.192');
+
+    it('should compute ipv4 network address', function() {
+      assert.equal(ipv4Subnet.networkAddress, '192.168.1.128');
+    });
+
+    it('should compute ipv4 network\'s first address', function() {
+      assert.equal(ipv4Subnet.firstAddress, '192.168.1.129');
+    });
+
+    it('should compute ipv4 network\'s last address', function() {
+      assert.equal(ipv4Subnet.lastAddress, '192.168.1.190');
+    });
+
+    it('should compute ipv4 broadcast address', function() {
+      assert.equal(ipv4Subnet.broadcastAddress, '192.168.1.191');
+    });
+
+    it('should compute ipv4 subnet number of addresses', function() {
+      assert.equal(ipv4Subnet.length, 64);
+    });
+
+    it('should compute ipv4 subnet number of addressable hosts', function() {
+      assert.equal(ipv4Subnet.numHosts, 62);
+    });
+
+    it('should compute ipv4 subnet mask', function() {
+      assert.equal(ipv4Subnet.subnetMask, '255.255.255.192');
+    });
+
+    it('should compute ipv4 subnet mask\'s length', function() {
+      assert.equal(ipv4Subnet.subnetMaskLength, 26);
+    });
+
+    it('should know whether a subnet contains an address', function() {
+      assert.equal(ipv4Subnet.contains('192.168.1.180'), true);
+    });
+
+    it('should know whether a subnet does not contain an address', function() {
+      assert.equal(ipv4Subnet.contains('192.168.1.195'), false);
+    });
+  });
+
+  describe('subnet() method with mask length 32', function() {
+    // Test cases calculated with http://www.subnet-calculator.com/
+    var ipv4Subnet = ip.subnet('192.168.1.134', '255.255.255.255');
+    it('should compute ipv4 network\'s first address', function() {
+      assert.equal(ipv4Subnet.firstAddress, '192.168.1.134');
+    });
+
+    it('should compute ipv4 network\'s last address', function() {
+      assert.equal(ipv4Subnet.lastAddress, '192.168.1.134');
+    });
+
+    it('should compute ipv4 subnet number of addressable hosts', function() {
+      assert.equal(ipv4Subnet.numHosts, 1);
+    });
+  });
+
+  describe('subnet() method with mask length 31', function() {
+    // Test cases calculated with http://www.subnet-calculator.com/
+    var ipv4Subnet = ip.subnet('192.168.1.134', '255.255.255.254');
+    it('should compute ipv4 network\'s first address', function() {
+      assert.equal(ipv4Subnet.firstAddress, '192.168.1.134');
+    });
+
+    it('should compute ipv4 network\'s last address', function() {
+      assert.equal(ipv4Subnet.lastAddress, '192.168.1.135');
+    });
+
+    it('should compute ipv4 subnet number of addressable hosts', function() {
+      assert.equal(ipv4Subnet.numHosts, 2);
+    });
+  });
+
+  describe('cidrSubnet() method', function() {
+    // Test cases calculated with http://www.subnet-calculator.com/
+    var ipv4Subnet = ip.cidrSubnet('192.168.1.134/26');
+
+    it('should compute an ipv4 network address', function() {
+      assert.equal(ipv4Subnet.networkAddress, '192.168.1.128');
+    });
+
+    it('should compute an ipv4 network\'s first address', function() {
+      assert.equal(ipv4Subnet.firstAddress, '192.168.1.129');
+    });
+
+    it('should compute an ipv4 network\'s last address', function() {
+      assert.equal(ipv4Subnet.lastAddress, '192.168.1.190');
+    });
+
+    it('should compute an ipv4 broadcast address', function() {
+      assert.equal(ipv4Subnet.broadcastAddress, '192.168.1.191');
+    });
+
+    it('should compute an ipv4 subnet number of addresses', function() {
+      assert.equal(ipv4Subnet.length, 64);
+    });
+
+    it('should compute an ipv4 subnet number of addressable hosts', function() {
+      assert.equal(ipv4Subnet.numHosts, 62);
+    });
+
+    it('should compute an ipv4 subnet mask', function() {
+      assert.equal(ipv4Subnet.subnetMask, '255.255.255.192');
+    });
+
+    it('should compute an ipv4 subnet mask\'s length', function() {
+      assert.equal(ipv4Subnet.subnetMaskLength, 26);
+    });
+
+    it('should know whether a subnet contains an address', function() {
+      assert.equal(ipv4Subnet.contains('192.168.1.180'), true);
+    });
+
+    it('should know whether a subnet contains an address', function() {
+      assert.equal(ipv4Subnet.contains('192.168.1.195'), false);
+    });
+
+  });
+
+  describe('cidr() method', function() {
+    it('should mask address in CIDR notation', function() {
+      assert.equal(ip.cidr('192.168.1.134/26'), '192.168.1.128');
+      assert.equal(ip.cidr('2607:f0d0:1002:51::4/56'), '2607:f0d0:1002::');
+    });
+  });
+
+  describe('isEqual() method', function() {
+    it('should check if addresses are equal', function() {
+      assert(ip.isEqual('127.0.0.1', '::7f00:1'));
+      assert(!ip.isEqual('127.0.0.1', '::7f00:2'));
+      assert(ip.isEqual('127.0.0.1', '::ffff:7f00:1'));
+      assert(!ip.isEqual('127.0.0.1', '::ffaf:7f00:1'));
+      assert(ip.isEqual('::ffff:127.0.0.1', '::ffff:127.0.0.1'));
+      assert(ip.isEqual('::ffff:127.0.0.1', '127.0.0.1'));
+    });
+  });
+
+
+  describe('isPrivate() method', function() {
+    it('should check if an address is localhost', function() {
+      assert.equal(ip.isPrivate('127.0.0.1'), true);
+    });
+
+    it('should check if an address is from a 192.168.x.x network', function() {
+      assert.equal(ip.isPrivate('192.168.0.123'), true);
+      assert.equal(ip.isPrivate('192.168.122.123'), true);
+      assert.equal(ip.isPrivate('192.162.1.2'), false);
+    });
+
+    it('should check if an address is from a 172.16.x.x network', function() {
+      assert.equal(ip.isPrivate('172.16.0.5'), true);
+      assert.equal(ip.isPrivate('172.16.123.254'), true);
+      assert.equal(ip.isPrivate('171.16.0.5'), false);
+      assert.equal(ip.isPrivate('172.25.232.15'), true);
+      assert.equal(ip.isPrivate('172.15.0.5'), false);
+      assert.equal(ip.isPrivate('172.32.0.5'), false);
+    });
+
+    it('should check if an address is from a 169.254.x.x network', function() {
+      assert.equal(ip.isPrivate('169.254.2.3'), true);
+      assert.equal(ip.isPrivate('169.254.221.9'), true);
+      assert.equal(ip.isPrivate('168.254.2.3'), false);
+    });
+
+    it('should check if an address is from a 10.x.x.x network', function() {
+      assert.equal(ip.isPrivate('10.0.2.3'), true);
+      assert.equal(ip.isPrivate('10.1.23.45'), true);
+      assert.equal(ip.isPrivate('12.1.2.3'), false);
+    });
+
+    it('should check if an address is from a private IPv6 network', function() {
+      assert.equal(ip.isPrivate('fd12:3456:789a:1::1'), true);
+      assert.equal(ip.isPrivate('fe80::f2de:f1ff:fe3f:307e'), true);
+      assert.equal(ip.isPrivate('::ffff:10.100.1.42'), true);
+      assert.equal(ip.isPrivate('::FFFF:172.16.200.1'), true);
+      assert.equal(ip.isPrivate('::ffff:192.168.0.1'), true);
+    });
+
+    it('should check if an address is from the internet', function() {
+      assert.equal(ip.isPrivate('165.225.132.33'), false); // joyent.com
+    });
+
+    it('should check if an address is a loopback IPv6 address', function() {
+      assert.equal(ip.isPrivate('::'), true);
+      assert.equal(ip.isPrivate('::1'), true);
+      assert.equal(ip.isPrivate('fe80::1'), true);
+    });
+  });
+
+  describe('loopback() method', function() {
+    describe('undefined', function() {
+      it('should respond with 127.0.0.1', function() {
+        assert.equal(ip.loopback(), '127.0.0.1')
+      });
+    });
+
+    describe('ipv4', function() {
+      it('should respond with 127.0.0.1', function() {
+        assert.equal(ip.loopback('ipv4'), '127.0.0.1')
+      });
+    });
+
+    describe('ipv6', function() {
+      it('should respond with fe80::1', function() {
+        assert.equal(ip.loopback('ipv6'), 'fe80::1')
+      });
+    });
+  });
+
+  describe('isLoopback() method', function() {
+    describe('127.0.0.1', function() {
+      it('should respond with true', function() {
+        assert.ok(ip.isLoopback('127.0.0.1'))
+      });
+    });
+
+    describe('127.8.8.8', function () {
+      it('should respond with true', function () {
+        assert.ok(ip.isLoopback('127.8.8.8'))
+      });
+    });
+
+    describe('8.8.8.8', function () {
+      it('should respond with false', function () {
+        assert.equal(ip.isLoopback('8.8.8.8'), false);
+      });
+    });
+
+    describe('fe80::1', function() {
+      it('should respond with true', function() {
+        assert.ok(ip.isLoopback('fe80::1'))
+      });
+    });
+
+    describe('::1', function() {
+      it('should respond with true', function() {
+        assert.ok(ip.isLoopback('::1'))
+      });
+    });
+
+    describe('::', function() {
+      it('should respond with true', function() {
+        assert.ok(ip.isLoopback('::'))
+      });
+    });
+  });
+
+  describe('address() method', function() {
+    describe('undefined', function() {
+      it('should respond with a private ip', function() {
+        assert.ok(ip.isPrivate(ip.address()));
+      });
+    });
+
+    describe('private', function() {
+      [ undefined, 'ipv4', 'ipv6' ].forEach(function(family) {
+        describe(family, function() {
+          it('should respond with a private ip', function() {
+            assert.ok(ip.isPrivate(ip.address('private', family)));
+          });
+        });
+      });
+    });
+
+    var interfaces = os.networkInterfaces();
+
+    Object.keys(interfaces).forEach(function(nic) {
+      describe(nic, function() {
+        [ undefined, 'ipv4' ].forEach(function(family) {
+          describe(family, function() {
+            it('should respond with an ipv4 address', function() {
+              var addr = ip.address(nic, family);
+              assert.ok(!addr || net.isIPv4(addr));
+            });
+          });
+        });
+
+        describe('ipv6', function() {
+          it('should respond with an ipv6 address', function() {
+            var addr = ip.address(nic, 'ipv6');
+            assert.ok(!addr || net.isIPv6(addr));
+          });
+        })
+      });
+    });
+  });
+
+  describe('toLong() method', function() {
+    it('should respond with a int', function() {
+      assert.equal(ip.toLong('127.0.0.1'), 2130706433);
+      assert.equal(ip.toLong('255.255.255.255'), 4294967295);
+    });
+  });
+
+  describe('fromLong() method', function() {
+    it('should repond with ipv4 address', function() {
+      assert.equal(ip.fromLong(2130706433), '127.0.0.1');
+      assert.equal(ip.fromLong(4294967295), '255.255.255.255');
+    });
+  })
+});
diff --git a/helloworld/node_modules/is-arrayish/LICENSE b/helloworld/node_modules/is-arrayish/LICENSE
new file mode 100755
index 0000000..0a5f461
--- /dev/null
+++ b/helloworld/node_modules/is-arrayish/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 JD Ballard
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/is-arrayish/README.md b/helloworld/node_modules/is-arrayish/README.md
new file mode 100755
index 0000000..7d36072
--- /dev/null
+++ b/helloworld/node_modules/is-arrayish/README.md
@@ -0,0 +1,16 @@
+# node-is-arrayish [![Travis-CI.org Build Status](https://img.shields.io/travis/Qix-/node-is-arrayish.svg?style=flat-square)](https://travis-ci.org/Qix-/node-is-arrayish) [![Coveralls.io Coverage Rating](https://img.shields.io/coveralls/Qix-/node-is-arrayish.svg?style=flat-square)](https://coveralls.io/r/Qix-/node-is-arrayish)
+> Determines if an object can be used like an Array
+
+## Example
+```javascript
+var isArrayish = require('is-arrayish');
+
+isArrayish([]); // true
+isArrayish({__proto__: []}); // true
+isArrayish({}); // false
+isArrayish({length:10}); // false
+```
+
+## License
+Licensed under the [MIT License](http://opensource.org/licenses/MIT).
+You can find a copy of it in [LICENSE](LICENSE).
diff --git a/helloworld/node_modules/is-arrayish/index.js b/helloworld/node_modules/is-arrayish/index.js
new file mode 100755
index 0000000..5b97186
--- /dev/null
+++ b/helloworld/node_modules/is-arrayish/index.js
@@ -0,0 +1,10 @@
+'use strict';
+
+module.exports = function isArrayish(obj) {
+	if (!obj) {
+		return false;
+	}
+
+	return obj instanceof Array || Array.isArray(obj) ||
+		(obj.length >= 0 && obj.splice instanceof Function);
+};
diff --git a/helloworld/node_modules/is-arrayish/package.json b/helloworld/node_modules/is-arrayish/package.json
new file mode 100755
index 0000000..a3ee631
--- /dev/null
+++ b/helloworld/node_modules/is-arrayish/package.json
@@ -0,0 +1,66 @@
+{
+  "_from": "is-arrayish@^0.2.1",
+  "_id": "is-arrayish@0.2.1",
+  "_inBundle": false,
+  "_integrity": "sha1-d8mYQFJ6qOyxqLppe4BkWnqSap0=",
+  "_location": "/is-arrayish",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "is-arrayish@^0.2.1",
+    "name": "is-arrayish",
+    "escapedName": "is-arrayish",
+    "rawSpec": "^0.2.1",
+    "saveSpec": null,
+    "fetchSpec": "^0.2.1"
+  },
+  "_requiredBy": [
+    "/error-ex"
+  ],
+  "_resolved": "https://registry.npmjs.org/is-arrayish/-/is-arrayish-0.2.1.tgz",
+  "_shasum": "77c99840527aa8ecb1a8ba697b80645a7a926a9d",
+  "_spec": "is-arrayish@^0.2.1",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/error-ex",
+  "author": {
+    "name": "Qix",
+    "url": "http://github.com/qix-"
+  },
+  "bugs": {
+    "url": "https://github.com/qix-/node-is-arrayish/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "Determines if an object can be used as an array",
+  "devDependencies": {
+    "coffee-script": "^1.9.3",
+    "coveralls": "^2.11.2",
+    "istanbul": "^0.3.17",
+    "mocha": "^2.2.5",
+    "should": "^7.0.1",
+    "xo": "^0.6.1"
+  },
+  "homepage": "https://github.com/qix-/node-is-arrayish#readme",
+  "keywords": [
+    "is",
+    "array",
+    "duck",
+    "type",
+    "arrayish",
+    "similar",
+    "proto",
+    "prototype",
+    "type"
+  ],
+  "license": "MIT",
+  "name": "is-arrayish",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/qix-/node-is-arrayish.git"
+  },
+  "scripts": {
+    "pretest": "xo",
+    "test": "mocha --compilers coffee:coffee-script/register"
+  },
+  "version": "0.2.1"
+}
diff --git a/helloworld/node_modules/is-buffer/LICENSE b/helloworld/node_modules/is-buffer/LICENSE
new file mode 100755
index 0000000..0c068ce
--- /dev/null
+++ b/helloworld/node_modules/is-buffer/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Feross Aboukhadijeh
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/is-buffer/README.md b/helloworld/node_modules/is-buffer/README.md
new file mode 100755
index 0000000..cce0a8c
--- /dev/null
+++ b/helloworld/node_modules/is-buffer/README.md
@@ -0,0 +1,53 @@
+# is-buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]
+
+[travis-image]: https://img.shields.io/travis/feross/is-buffer/master.svg
+[travis-url]: https://travis-ci.org/feross/is-buffer
+[npm-image]: https://img.shields.io/npm/v/is-buffer.svg
+[npm-url]: https://npmjs.org/package/is-buffer
+[downloads-image]: https://img.shields.io/npm/dm/is-buffer.svg
+[downloads-url]: https://npmjs.org/package/is-buffer
+[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg
+[standard-url]: https://standardjs.com
+
+#### Determine if an object is a [`Buffer`](http://nodejs.org/api/buffer.html) (including the [browserify Buffer](https://github.com/feross/buffer))
+
+[![saucelabs][saucelabs-image]][saucelabs-url]
+
+[saucelabs-image]: https://saucelabs.com/browser-matrix/is-buffer.svg
+[saucelabs-url]: https://saucelabs.com/u/is-buffer
+
+## Why not use `Buffer.isBuffer`?
+
+This module lets you check if an object is a `Buffer` without using `Buffer.isBuffer` (which includes the whole [buffer](https://github.com/feross/buffer) module in [browserify](http://browserify.org/)).
+
+It's future-proof and works in node too!
+
+## install
+
+```bash
+npm install is-buffer
+```
+
+## usage
+
+```js
+var isBuffer = require('is-buffer')
+
+isBuffer(new Buffer(4)) // true
+
+isBuffer(undefined) // false
+isBuffer(null) // false
+isBuffer('') // false
+isBuffer(true) // false
+isBuffer(false) // false
+isBuffer(0) // false
+isBuffer(1) // false
+isBuffer(1.0) // false
+isBuffer('string') // false
+isBuffer({}) // false
+isBuffer(function foo () {}) // false
+```
+
+## license
+
+MIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org).
diff --git a/helloworld/node_modules/is-buffer/index.js b/helloworld/node_modules/is-buffer/index.js
new file mode 100755
index 0000000..9cce396
--- /dev/null
+++ b/helloworld/node_modules/is-buffer/index.js
@@ -0,0 +1,21 @@
+/*!
+ * Determine if an object is a Buffer
+ *
+ * @author   Feross Aboukhadijeh <https://feross.org>
+ * @license  MIT
+ */
+
+// The _isBuffer check is for Safari 5-7 support, because it's missing
+// Object.prototype.constructor. Remove this eventually
+module.exports = function (obj) {
+  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
+}
+
+function isBuffer (obj) {
+  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
+}
+
+// For Node v0.10 support. Remove this eventually.
+function isSlowBuffer (obj) {
+  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
+}
diff --git a/helloworld/node_modules/is-buffer/package.json b/helloworld/node_modules/is-buffer/package.json
new file mode 100755
index 0000000..2eb8ac5
--- /dev/null
+++ b/helloworld/node_modules/is-buffer/package.json
@@ -0,0 +1,77 @@
+{
+  "_from": "is-buffer@^1.1.5",
+  "_id": "is-buffer@1.1.6",
+  "_inBundle": false,
+  "_integrity": "sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==",
+  "_location": "/is-buffer",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "is-buffer@^1.1.5",
+    "name": "is-buffer",
+    "escapedName": "is-buffer",
+    "rawSpec": "^1.1.5",
+    "saveSpec": null,
+    "fetchSpec": "^1.1.5"
+  },
+  "_requiredBy": [
+    "/axios"
+  ],
+  "_resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-1.1.6.tgz",
+  "_shasum": "efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be",
+  "_spec": "is-buffer@^1.1.5",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/axios",
+  "author": {
+    "name": "Feross Aboukhadijeh",
+    "email": "feross@feross.org",
+    "url": "http://feross.org/"
+  },
+  "bugs": {
+    "url": "https://github.com/feross/is-buffer/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {},
+  "deprecated": false,
+  "description": "Determine if an object is a Buffer",
+  "devDependencies": {
+    "standard": "*",
+    "tape": "^4.0.0",
+    "zuul": "^3.0.0"
+  },
+  "homepage": "https://github.com/feross/is-buffer#readme",
+  "keywords": [
+    "buffer",
+    "buffers",
+    "type",
+    "core buffer",
+    "browser buffer",
+    "browserify",
+    "typed array",
+    "uint32array",
+    "int16array",
+    "int32array",
+    "float32array",
+    "float64array",
+    "browser",
+    "arraybuffer",
+    "dataview"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "name": "is-buffer",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/feross/is-buffer.git"
+  },
+  "scripts": {
+    "test": "standard && npm run test-node && npm run test-browser",
+    "test-browser": "zuul -- test/*.js",
+    "test-browser-local": "zuul --local -- test/*.js",
+    "test-node": "tape test/*.js"
+  },
+  "testling": {
+    "files": "test/*.js"
+  },
+  "version": "1.1.6"
+}
diff --git a/helloworld/node_modules/is-buffer/test/basic.js b/helloworld/node_modules/is-buffer/test/basic.js
new file mode 100755
index 0000000..be4f8e4
--- /dev/null
+++ b/helloworld/node_modules/is-buffer/test/basic.js
@@ -0,0 +1,24 @@
+var isBuffer = require('../')
+var test = require('tape')
+
+test('is-buffer', function (t) {
+  t.equal(isBuffer(Buffer.alloc(4)), true, 'new Buffer(4)')
+  t.equal(isBuffer(Buffer.allocUnsafeSlow(100)), true, 'SlowBuffer(100)')
+
+  t.equal(isBuffer(undefined), false, 'undefined')
+  t.equal(isBuffer(null), false, 'null')
+  t.equal(isBuffer(''), false, 'empty string')
+  t.equal(isBuffer(true), false, 'true')
+  t.equal(isBuffer(false), false, 'false')
+  t.equal(isBuffer(0), false, '0')
+  t.equal(isBuffer(1), false, '1')
+  t.equal(isBuffer(1.0), false, '1.0')
+  t.equal(isBuffer('string'), false, 'string')
+  t.equal(isBuffer({}), false, '{}')
+  t.equal(isBuffer([]), false, '[]')
+  t.equal(isBuffer(function foo () {}), false, 'function foo () {}')
+  t.equal(isBuffer({ isBuffer: null }), false, '{ isBuffer: null }')
+  t.equal(isBuffer({ isBuffer: function () { throw new Error() } }), false, '{ isBuffer: function () { throw new Error() } }')
+
+  t.end()
+})
diff --git a/helloworld/node_modules/is-fullwidth-code-point/index.js b/helloworld/node_modules/is-fullwidth-code-point/index.js
new file mode 100755
index 0000000..a7d3e38
--- /dev/null
+++ b/helloworld/node_modules/is-fullwidth-code-point/index.js
@@ -0,0 +1,46 @@
+'use strict';
+var numberIsNan = require('number-is-nan');
+
+module.exports = function (x) {
+	if (numberIsNan(x)) {
+		return false;
+	}
+
+	// https://github.com/nodejs/io.js/blob/cff7300a578be1b10001f2d967aaedc88aee6402/lib/readline.js#L1369
+
+	// code points are derived from:
+	// http://www.unix.org/Public/UNIDATA/EastAsianWidth.txt
+	if (x >= 0x1100 && (
+		x <= 0x115f ||  // Hangul Jamo
+		0x2329 === x || // LEFT-POINTING ANGLE BRACKET
+		0x232a === x || // RIGHT-POINTING ANGLE BRACKET
+		// CJK Radicals Supplement .. Enclosed CJK Letters and Months
+		(0x2e80 <= x && x <= 0x3247 && x !== 0x303f) ||
+		// Enclosed CJK Letters and Months .. CJK Unified Ideographs Extension A
+		0x3250 <= x && x <= 0x4dbf ||
+		// CJK Unified Ideographs .. Yi Radicals
+		0x4e00 <= x && x <= 0xa4c6 ||
+		// Hangul Jamo Extended-A
+		0xa960 <= x && x <= 0xa97c ||
+		// Hangul Syllables
+		0xac00 <= x && x <= 0xd7a3 ||
+		// CJK Compatibility Ideographs
+		0xf900 <= x && x <= 0xfaff ||
+		// Vertical Forms
+		0xfe10 <= x && x <= 0xfe19 ||
+		// CJK Compatibility Forms .. Small Form Variants
+		0xfe30 <= x && x <= 0xfe6b ||
+		// Halfwidth and Fullwidth Forms
+		0xff01 <= x && x <= 0xff60 ||
+		0xffe0 <= x && x <= 0xffe6 ||
+		// Kana Supplement
+		0x1b000 <= x && x <= 0x1b001 ||
+		// Enclosed Ideographic Supplement
+		0x1f200 <= x && x <= 0x1f251 ||
+		// CJK Unified Ideographs Extension B .. Tertiary Ideographic Plane
+		0x20000 <= x && x <= 0x3fffd)) {
+		return true;
+	}
+
+	return false;
+}
diff --git a/helloworld/node_modules/is-fullwidth-code-point/license b/helloworld/node_modules/is-fullwidth-code-point/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/is-fullwidth-code-point/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/is-fullwidth-code-point/readme.md b/helloworld/node_modules/is-fullwidth-code-point/readme.md
new file mode 100755
index 0000000..4936464
--- /dev/null
+++ b/helloworld/node_modules/is-fullwidth-code-point/readme.md
@@ -0,0 +1,39 @@
+# is-fullwidth-code-point [![Build Status](https://travis-ci.org/sindresorhus/is-fullwidth-code-point.svg?branch=master)](https://travis-ci.org/sindresorhus/is-fullwidth-code-point)
+
+> Check if the character represented by a given [Unicode code point](https://en.wikipedia.org/wiki/Code_point) is [fullwidth](https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms)
+
+
+## Install
+
+```
+$ npm install --save is-fullwidth-code-point
+```
+
+
+## Usage
+
+```js
+var isFullwidthCodePoint = require('is-fullwidth-code-point');
+
+isFullwidthCodePoint('谢'.codePointAt());
+//=> true
+
+isFullwidthCodePoint('a'.codePointAt());
+//=> false
+```
+
+
+## API
+
+### isFullwidthCodePoint(input)
+
+#### input
+
+Type: `number`
+
+[Code point](https://en.wikipedia.org/wiki/Code_point) of a character.
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/is-ip/index.js b/helloworld/node_modules/is-ip/index.js
new file mode 100755
index 0000000..9545197
--- /dev/null
+++ b/helloworld/node_modules/is-ip/index.js
@@ -0,0 +1,6 @@
+'use strict';
+const ipRegex = require('ip-regex');
+
+const isIp = module.exports = x => ipRegex({exact: true}).test(x);
+isIp.v4 = x => ipRegex.v4({exact: true}).test(x);
+isIp.v6 = x => ipRegex.v6({exact: true}).test(x);
diff --git a/helloworld/node_modules/is-ip/license b/helloworld/node_modules/is-ip/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/is-ip/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/is-ip/readme.md b/helloworld/node_modules/is-ip/readme.md
new file mode 100755
index 0000000..7923f1b
--- /dev/null
+++ b/helloworld/node_modules/is-ip/readme.md
@@ -0,0 +1,51 @@
+# is-ip [![Build Status](https://travis-ci.org/sindresorhus/is-ip.svg?branch=master)](https://travis-ci.org/sindresorhus/is-ip)
+
+> Check if a string is an IP address
+
+
+## Install
+
+```
+$ npm install --save is-ip
+```
+
+
+## Usage
+
+```js
+const isIp = require('is-ip');
+
+isIp('192.168.0.1');
+//=> true
+
+isIp('1:2:3:4:5:6:7:8');
+//=> true
+
+isIp.v4('1:2:3:4:5:6:7:8');
+//=> false
+```
+
+
+## API
+
+### isIp(input)
+
+Check if `input` is IPv4 or IPv6.
+
+### isIp.v4(input)
+
+Check if `input` is IPv4.
+
+### isIp.v6(input)
+
+Check if `input` is IPv6.
+
+
+## Related
+
+- [ip-regex](https://github.com/sindresorhus/ip-regex) - Regular expression for matching IP addresses
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/helloworld/node_modules/is-utf8/LICENSE b/helloworld/node_modules/is-utf8/LICENSE
new file mode 100755
index 0000000..2c8d4b9
--- /dev/null
+++ b/helloworld/node_modules/is-utf8/LICENSE
@@ -0,0 +1,9 @@
+The MIT License (MIT)
+
+Copyright (C) 2014 Wei Fanzhe
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+　　
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/is-utf8/README.md b/helloworld/node_modules/is-utf8/README.md
new file mode 100755
index 0000000..b62ddde
--- /dev/null
+++ b/helloworld/node_modules/is-utf8/README.md
@@ -0,0 +1,16 @@
+#utf8 detector
+
+Detect if a Buffer is utf8 encoded. 
+It need The minimum amount of bytes is 4.
+
+
+```javascript
+    var fs = require('fs');
+    var isUtf8 = require('is-utf8');
+    var ansi = fs.readFileSync('ansi.txt');
+    var utf8 = fs.readFileSync('utf8.txt');
+    
+    console.log('ansi.txt is utf8: '+isUtf8(ansi)); //false
+    console.log('utf8.txt is utf8: '+isUtf8(utf8)); //true
+```
+    
diff --git a/helloworld/node_modules/is-utf8/is-utf8.js b/helloworld/node_modules/is-utf8/is-utf8.js
new file mode 100755
index 0000000..8a5f15d
--- /dev/null
+++ b/helloworld/node_modules/is-utf8/is-utf8.js
@@ -0,0 +1,76 @@
+
+exports = module.exports = function(bytes)
+{
+    var i = 0;
+    while(i < bytes.length)
+    {
+        if(     (// ASCII
+                    bytes[i] == 0x09 ||
+                    bytes[i] == 0x0A ||
+                    bytes[i] == 0x0D ||
+                    (0x20 <= bytes[i] && bytes[i] <= 0x7E)
+                )
+          ) {
+              i += 1;
+              continue;
+          }
+
+        if(     (// non-overlong 2-byte
+                    (0xC2 <= bytes[i] && bytes[i] <= 0xDF) &&
+                    (0x80 <= bytes[i+1] && bytes[i+1] <= 0xBF)
+                )
+          ) {
+              i += 2;
+              continue;
+          }
+
+        if(     (// excluding overlongs
+                    bytes[i] == 0xE0 &&
+                    (0xA0 <= bytes[i + 1] && bytes[i + 1] <= 0xBF) &&
+                    (0x80 <= bytes[i + 2] && bytes[i + 2] <= 0xBF)
+                ) ||
+                (// straight 3-byte
+                 ((0xE1 <= bytes[i] && bytes[i] <= 0xEC) ||
+                  bytes[i] == 0xEE ||
+                  bytes[i] == 0xEF) &&
+                 (0x80 <= bytes[i + 1] && bytes[i+1] <= 0xBF) &&
+                 (0x80 <= bytes[i+2] && bytes[i+2] <= 0xBF)
+                ) ||
+                (// excluding surrogates
+                 bytes[i] == 0xED &&
+                 (0x80 <= bytes[i+1] && bytes[i+1] <= 0x9F) &&
+                 (0x80 <= bytes[i+2] && bytes[i+2] <= 0xBF)
+                )
+          ) {
+              i += 3;
+              continue;
+          }
+
+        if(     (// planes 1-3
+                    bytes[i] == 0xF0 &&
+                    (0x90 <= bytes[i + 1] && bytes[i + 1] <= 0xBF) &&
+                    (0x80 <= bytes[i + 2] && bytes[i + 2] <= 0xBF) &&
+                    (0x80 <= bytes[i + 3] && bytes[i + 3] <= 0xBF)
+                ) ||
+                (// planes 4-15
+                 (0xF1 <= bytes[i] && bytes[i] <= 0xF3) &&
+                 (0x80 <= bytes[i + 1] && bytes[i + 1] <= 0xBF) &&
+                 (0x80 <= bytes[i + 2] && bytes[i + 2] <= 0xBF) &&
+                 (0x80 <= bytes[i + 3] && bytes[i + 3] <= 0xBF)
+                ) ||
+                (// plane 16
+                 bytes[i] == 0xF4 &&
+                 (0x80 <= bytes[i + 1] && bytes[i + 1] <= 0x8F) &&
+                 (0x80 <= bytes[i + 2] && bytes[i + 2] <= 0xBF) &&
+                 (0x80 <= bytes[i + 3] && bytes[i + 3] <= 0xBF)
+                )
+          ) {
+              i += 4;
+              continue;
+          }
+
+        return false;
+    }
+
+    return true;
+}
diff --git a/helloworld/node_modules/isarray/README.md b/helloworld/node_modules/isarray/README.md
new file mode 100755
index 0000000..38a91f6
--- /dev/null
+++ b/helloworld/node_modules/isarray/README.md
@@ -0,0 +1,54 @@
+
+# isarray
+
+`Array#isArray` for older browsers.
+
+[![build status](https://secure.travis-ci.org/juliangruber/isarray.svg)](http://travis-ci.org/juliangruber/isarray)
+[![downloads](https://img.shields.io/npm/dm/isarray.svg)](https://www.npmjs.org/package/isarray)
+
+[![browser support](https://ci.testling.com/juliangruber/isarray.png)
+](https://ci.testling.com/juliangruber/isarray)
+
+## Usage
+
+```js
+var isArray = require('isarray');
+
+console.log(isArray([])); // => true
+console.log(isArray({})); // => false
+```
+
+## Installation
+
+With [npm](https://npmjs.org) do
+
+```bash
+$ npm install isarray
+```
+
+Then bundle for the browser with
+[browserify](https://github.com/substack/node-browserify).
+
+## License
+
+(MIT)
+
+Copyright (c) 2013 Julian Gruber &lt;julian@juliangruber.com&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/helloworld/node_modules/isarray/index.js b/helloworld/node_modules/isarray/index.js
new file mode 100755
index 0000000..a57f634
--- /dev/null
+++ b/helloworld/node_modules/isarray/index.js
@@ -0,0 +1,5 @@
+var toString = {}.toString;
+
+module.exports = Array.isArray || function (arr) {
+  return toString.call(arr) == '[object Array]';
+};
diff --git a/helloworld/node_modules/json-buffer/LICENSE b/helloworld/node_modules/json-buffer/LICENSE
new file mode 100755
index 0000000..b799ec0
--- /dev/null
+++ b/helloworld/node_modules/json-buffer/LICENSE
@@ -0,0 +1,22 @@
+Copyright (c) 2013 Dominic Tarr
+
+Permission is hereby granted, free of charge, 
+to any person obtaining a copy of this software and 
+associated documentation files (the "Software"), to 
+deal in the Software without restriction, including 
+without limitation the rights to use, copy, modify, 
+merge, publish, distribute, sublicense, and/or sell 
+copies of the Software, and to permit persons to whom 
+the Software is furnished to do so, 
+subject to the following conditions:
+
+The above copyright notice and this permission notice 
+shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/json-buffer/README.md b/helloworld/node_modules/json-buffer/README.md
new file mode 100755
index 0000000..43857bb
--- /dev/null
+++ b/helloworld/node_modules/json-buffer/README.md
@@ -0,0 +1,24 @@
+# json-buffer
+
+JSON functions that can convert buffers!
+
+[![build status](https://secure.travis-ci.org/dominictarr/json-buffer.png)](http://travis-ci.org/dominictarr/json-buffer)
+
+[![testling badge](https://ci.testling.com/dominictarr/json-buffer.png)](https://ci.testling.com/dominictarr/json-buffer)
+
+JSON mangles buffers by converting to an array...
+which isn't helpful. json-buffers converts to base64 instead,
+and deconverts base64 to a buffer.
+
+``` js
+var JSONB = require('json-buffer')
+var Buffer = require('buffer').Buffer
+
+var str = JSONB.stringify(new Buffer('hello there!'))
+
+console.log(JSONB.parse(str)) //GET a BUFFER back
+```
+
+## License
+
+MIT
diff --git a/helloworld/node_modules/json-buffer/index.js b/helloworld/node_modules/json-buffer/index.js
new file mode 100755
index 0000000..9cafed8
--- /dev/null
+++ b/helloworld/node_modules/json-buffer/index.js
@@ -0,0 +1,58 @@
+//TODO: handle reviver/dehydrate function like normal
+//and handle indentation, like normal.
+//if anyone needs this... please send pull request.
+
+exports.stringify = function stringify (o) {
+  if('undefined' == typeof o) return o
+
+  if(o && Buffer.isBuffer(o))
+    return JSON.stringify(':base64:' + o.toString('base64'))
+
+  if(o && o.toJSON)
+    o =  o.toJSON()
+
+  if(o && 'object' === typeof o) {
+    var s = ''
+    var array = Array.isArray(o)
+    s = array ? '[' : '{'
+    var first = true
+
+    for(var k in o) {
+      var ignore = 'function' == typeof o[k] || (!array && 'undefined' === typeof o[k])
+      if(Object.hasOwnProperty.call(o, k) && !ignore) {
+        if(!first)
+          s += ','
+        first = false
+        if (array) {
+          if(o[k] == undefined)
+            s += 'null'
+          else
+            s += stringify(o[k])
+        } else if (o[k] !== void(0)) {
+          s += stringify(k) + ':' + stringify(o[k])
+        }
+      }
+    }
+
+    s += array ? ']' : '}'
+
+    return s
+  } else if ('string' === typeof o) {
+    return JSON.stringify(/^:/.test(o) ? ':' + o : o)
+  } else if ('undefined' === typeof o) {
+    return 'null';
+  } else
+    return JSON.stringify(o)
+}
+
+exports.parse = function (s) {
+  return JSON.parse(s, function (key, value) {
+    if('string' === typeof value) {
+      if(/^:base64:/.test(value))
+        return new Buffer(value.substring(8), 'base64')
+      else
+        return /^:/.test(value) ? value.substring(1) : value 
+    }
+    return value
+  })
+}
diff --git a/helloworld/node_modules/json-buffer/package.json b/helloworld/node_modules/json-buffer/package.json
new file mode 100755
index 0000000..6903b93
--- /dev/null
+++ b/helloworld/node_modules/json-buffer/package.json
@@ -0,0 +1,66 @@
+{
+  "_from": "json-buffer@3.0.0",
+  "_id": "json-buffer@3.0.0",
+  "_inBundle": false,
+  "_integrity": "sha1-Wx85evx11ne96Lz8Dkfh+aPZqJg=",
+  "_location": "/json-buffer",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "json-buffer@3.0.0",
+    "name": "json-buffer",
+    "escapedName": "json-buffer",
+    "rawSpec": "3.0.0",
+    "saveSpec": null,
+    "fetchSpec": "3.0.0"
+  },
+  "_requiredBy": [
+    "/keyv"
+  ],
+  "_resolved": "https://registry.npmjs.org/json-buffer/-/json-buffer-3.0.0.tgz",
+  "_shasum": "5b1f397afc75d677bde8bcfc0e47e1f9a3d9a898",
+  "_spec": "json-buffer@3.0.0",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/keyv",
+  "author": {
+    "name": "Dominic Tarr",
+    "email": "dominic.tarr@gmail.com",
+    "url": "http://dominictarr.com"
+  },
+  "bugs": {
+    "url": "https://github.com/dominictarr/json-buffer/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "JSON parse & stringify that supports binary via bops & base64",
+  "devDependencies": {
+    "tape": "^4.6.3"
+  },
+  "homepage": "https://github.com/dominictarr/json-buffer",
+  "license": "MIT",
+  "name": "json-buffer",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/dominictarr/json-buffer.git"
+  },
+  "scripts": {
+    "test": "set -e; for t in test/*.js; do node $t; done"
+  },
+  "testling": {
+    "files": "test/*.js",
+    "browsers": [
+      "ie/8..latest",
+      "firefox/17..latest",
+      "firefox/nightly",
+      "chrome/22..latest",
+      "chrome/canary",
+      "opera/12..latest",
+      "opera/next",
+      "safari/5.1..latest",
+      "ipad/6.0..latest",
+      "iphone/6.0..latest",
+      "android-browser/4.2..latest"
+    ]
+  },
+  "version": "3.0.0"
+}
diff --git a/helloworld/node_modules/json-buffer/test/index.js b/helloworld/node_modules/json-buffer/test/index.js
new file mode 100755
index 0000000..8351804
--- /dev/null
+++ b/helloworld/node_modules/json-buffer/test/index.js
@@ -0,0 +1,63 @@
+
+var test = require('tape')
+var _JSON = require('../')
+
+function clone (o) {
+  return JSON.parse(JSON.stringify(o))
+}
+
+var examples = {
+  simple: { foo: [], bar: {}, baz: new Buffer('some binary data') },
+  just_buffer: new Buffer('JUST A BUFFER'),
+  all_types: {
+    string:'hello',
+    number: 3145,
+    null: null,
+    object: {},
+    array: [],
+    boolean: true,
+    boolean2: false
+  },
+  foo: new Buffer('foo'),
+  foo2: new Buffer('foo2'),
+  escape: {
+    buffer: new Buffer('x'),
+    string: _JSON.stringify(new Buffer('x'))
+  },
+  escape2: {
+    buffer: new Buffer('x'),
+    string: ':base64:'+ new Buffer('x').toString('base64')
+  },
+  undefined: {
+    empty: undefined, test: true
+  },
+  undefined2: {
+    first: 1, empty: undefined, test: true
+  },
+  undefinedArray: {
+    array: [undefined, 1, 'two']
+  },
+  fn: {
+    fn: function () {}    
+  },
+  undefined: undefined
+}
+
+for(k in examples)
+(function (value, k) { 
+  test(k, function (t) {
+    var s = _JSON.stringify(value)
+    console.log('parse', s)
+    if(JSON.stringify(value) !== undefined) {
+      console.log(s)
+      var _value = _JSON.parse(s)
+      t.deepEqual(clone(_value), clone(value))
+    }
+    else
+      t.equal(s, undefined)
+    t.end()
+  })
+})(examples[k], k)
+
+
+
diff --git a/helloworld/node_modules/keyv/LICENSE b/helloworld/node_modules/keyv/LICENSE
new file mode 100755
index 0000000..f27ee9b
--- /dev/null
+++ b/helloworld/node_modules/keyv/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2017 Luke Childs
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/helloworld/node_modules/keyv/README.md b/helloworld/node_modules/keyv/README.md
new file mode 100755
index 0000000..2a9287c
--- /dev/null
+++ b/helloworld/node_modules/keyv/README.md
@@ -0,0 +1,276 @@
+<h1 align="center">
+	<img width="250" src="https://rawgit.com/lukechilds/keyv/master/media/logo.svg" alt="keyv">
+	<br>
+	<br>
+</h1>
+
+> Simple key-value storage with support for multiple backends
+
+[![Build Status](https://travis-ci.org/lukechilds/keyv.svg?branch=master)](https://travis-ci.org/lukechilds/keyv)
+[![Coverage Status](https://coveralls.io/repos/github/lukechilds/keyv/badge.svg?branch=master)](https://coveralls.io/github/lukechilds/keyv?branch=master)
+[![npm](https://img.shields.io/npm/dm/keyv.svg)](https://www.npmjs.com/package/keyv)
+[![npm](https://img.shields.io/npm/v/keyv.svg)](https://www.npmjs.com/package/keyv)
+
+Keyv provides a consistent interface for key-value storage across multiple backends via storage adapters. It supports TTL based expiry, making it suitable as a cache or a persistent key-value store.
+
+## Features
+
+There are a few existing modules similar to Keyv, however Keyv is different because it:
+
+- Isn't bloated
+- Has a simple Promise based API
+- Suitable as a TTL based cache or persistent key-value store
+- [Easily embeddable](#add-cache-support-to-your-module) inside another module
+- Works with any storage that implements the [`Map`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map) API
+- Handles all JSON types plus `Buffer`
+- Supports namespaces
+- Wide range of [**efficient, well tested**](#official-storage-adapters) storage adapters
+- Connection errors are passed through (db failures won't kill your app)
+- Supports the current active LTS version of Node.js or higher
+
+## Usage
+
+Install Keyv.
+
+```
+npm install --save keyv
+```
+
+By default everything is stored in memory, you can optionally also install a storage adapter.
+
+```
+npm install --save @keyv/redis
+npm install --save @keyv/mongo
+npm install --save @keyv/sqlite
+npm install --save @keyv/postgres
+npm install --save @keyv/mysql
+```
+
+Create a new Keyv instance, passing your connection string if applicable. Keyv will automatically load the correct storage adapter.
+
+```js
+const Keyv = require('keyv');
+
+// One of the following
+const keyv = new Keyv();
+const keyv = new Keyv('redis://user:pass@localhost:6379');
+const keyv = new Keyv('mongodb://user:pass@localhost:27017/dbname');
+const keyv = new Keyv('sqlite://path/to/database.sqlite');
+const keyv = new Keyv('postgresql://user:pass@localhost:5432/dbname');
+const keyv = new Keyv('mysql://user:pass@localhost:3306/dbname');
+
+// Handle DB connection errors
+keyv.on('error', err => console.log('Connection Error', err));
+
+await keyv.set('foo', 'expires in 1 second', 1000); // true
+await keyv.set('foo', 'never expires'); // true
+await keyv.get('foo'); // 'never expires'
+await keyv.delete('foo'); // true
+await keyv.clear(); // undefined
+```
+
+### Namespaces
+
+You can namespace your Keyv instance to avoid key collisions and allow you to clear only a certain namespace while using the same database.
+
+```js
+const users = new Keyv('redis://user:pass@localhost:6379', { namespace: 'users' });
+const cache = new Keyv('redis://user:pass@localhost:6379', { namespace: 'cache' });
+
+await users.set('foo', 'users'); // true
+await cache.set('foo', 'cache'); // true
+await users.get('foo'); // 'users'
+await cache.get('foo'); // 'cache'
+await users.clear(); // undefined
+await users.get('foo'); // undefined
+await cache.get('foo'); // 'cache'
+```
+
+### Custom Serializers
+
+Keyv uses [`json-buffer`](https://github.com/dominictarr/json-buffer) for data serialization to ensure consistency across different backends.
+
+You can optionally provide your own serialization functions to support extra data types or to serialize to something other than JSON.
+
+```js
+const keyv = new Keyv({ serialize: JSON.stringify, deserialize: JSON.parse });
+```
+
+**Warning:** Using custom serializers means you lose any guarantee of data consistency. You should do extensive testing with your serialisation functions and chosen storage engine.
+
+## Official Storage Adapters
+
+The official storage adapters are covered by [over 150 integration tests](https://travis-ci.org/lukechilds/keyv/jobs/260418145) to guarantee consistent behaviour. They are lightweight, efficient wrappers over the DB clients making use of indexes and native TTLs where available.
+
+Database | Adapter | Native TTL | Status
+---|---|---|---
+Redis | [@keyv/redis](https://github.com/lukechilds/keyv-redis) | Yes | [![Build Status](https://travis-ci.org/lukechilds/keyv-redis.svg?branch=master)](https://travis-ci.org/lukechilds/keyv-redis) [![Coverage Status](https://coveralls.io/repos/github/lukechilds/keyv-redis/badge.svg?branch=master)](https://coveralls.io/github/lukechilds/keyv-redis?branch=master)
+MongoDB | [@keyv/mongo](https://github.com/lukechilds/keyv-mongo) | Yes | [![Build Status](https://travis-ci.org/lukechilds/keyv-mongo.svg?branch=master)](https://travis-ci.org/lukechilds/keyv-mongo) [![Coverage Status](https://coveralls.io/repos/github/lukechilds/keyv-mongo/badge.svg?branch=master)](https://coveralls.io/github/lukechilds/keyv-mongo?branch=master)
+SQLite | [@keyv/sqlite](https://github.com/lukechilds/keyv-sqlite) | No | [![Build Status](https://travis-ci.org/lukechilds/keyv-sqlite.svg?branch=master)](https://travis-ci.org/lukechilds/keyv-sqlite) [![Coverage Status](https://coveralls.io/repos/github/lukechilds/keyv-sqlite/badge.svg?branch=master)](https://coveralls.io/github/lukechilds/keyv-sqlite?branch=master)
+PostgreSQL | [@keyv/postgres](https://github.com/lukechilds/keyv-postgres) | No | [![Build Status](https://travis-ci.org/lukechilds/keyv-postgres.svg?branch=master)](https://travis-ci.org/lukechildskeyv-postgreskeyv) [![Coverage Status](https://coveralls.io/repos/github/lukechilds/keyv-postgres/badge.svg?branch=master)](https://coveralls.io/github/lukechilds/keyv-postgres?branch=master)
+MySQL | [@keyv/mysql](https://github.com/lukechilds/keyv-mysql) | No | [![Build Status](https://travis-ci.org/lukechilds/keyv-mysql.svg?branch=master)](https://travis-ci.org/lukechilds/keyv-mysql) [![Coverage Status](https://coveralls.io/repos/github/lukechilds/keyv-mysql/badge.svg?branch=master)](https://coveralls.io/github/lukechilds/keyv-mysql?branch=master)
+
+## Third-party Storage Adapters
+
+You can also use third-party storage adapters or build your own. Keyv will wrap these storage adapters in TTL functionality and handle complex types internally.
+
+```js
+const Keyv = require('keyv');
+const myAdapter = require('./my-storage-adapter');
+
+const keyv = new Keyv({ store: myAdapter });
+```
+
+Any store that follows the [`Map`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map) api will work.
+
+```js
+new Keyv({ store: new Map() });
+```
+
+For example, [`quick-lru`](https://github.com/sindresorhus/quick-lru) is a completely unrelated module that implements the Map API.
+
+```js
+const Keyv = require('keyv');
+const QuickLRU = require('quick-lru');
+
+const lru = new QuickLRU({ maxSize: 1000 });
+const keyv = new Keyv({ store: lru });
+```
+
+The following are third-party storage adapters compatible with Keyv:
+
+- [quick-lru](https://github.com/sindresorhus/quick-lru) - Simple "Least Recently Used" (LRU) cache
+- [keyv-file](https://github.com/zaaack/keyv-file) - File system storage adapter for Keyv
+- [keyv-dynamodb](https://www.npmjs.com/package/keyv-dynamodb) - DynamoDB storage adapter for Keyv
+
+## Add Cache Support to your Module
+
+Keyv is designed to be easily embedded into other modules to add cache support. The recommended pattern is to expose a `cache` option in your modules options which is passed through to Keyv. Caching will work in memory by default and users have the option to also install a Keyv storage adapter and pass in a connection string, or any other storage that implements the `Map` API.
+
+You should also set a namespace for your module so you can safely call `.clear()` without clearing unrelated app data.
+
+Inside your module:
+
+```js
+class AwesomeModule {
+	constructor(opts) {
+		this.cache = new Keyv({
+			uri: typeof opts.cache === 'string' && opts.cache,
+			store: typeof opts.cache !== 'string' && opts.cache,
+			namespace: 'awesome-module'
+		});
+	}
+}
+```
+
+Now it can be consumed like this:
+
+```js
+const AwesomeModule = require('awesome-module');
+
+// Caches stuff in memory by default
+const awesomeModule = new AwesomeModule();
+
+// After npm install --save keyv-redis
+const awesomeModule = new AwesomeModule({ cache: 'redis://localhost' });
+
+// Some third-party module that implements the Map API
+const awesomeModule = new AwesomeModule({ cache: some3rdPartyStore });
+```
+
+## API
+
+### new Keyv([uri], [options])
+
+Returns a new Keyv instance.
+
+The Keyv instance is also an `EventEmitter` that will emit an `'error'` event if the storage adapter connection fails.
+
+### uri
+
+Type: `String`<br>
+Default: `undefined`
+
+The connection string URI.
+
+Merged into the options object as options.uri.
+
+### options
+
+Type: `Object`
+
+The options object is also passed through to the storage adapter. Check your storage adapter docs for any extra options.
+
+#### options.namespace
+
+Type: `String`<br>
+Default: `'keyv'`
+
+Namespace for the current instance.
+
+#### options.ttl
+
+Type: `Number`<br>
+Default: `undefined`
+
+Default TTL. Can be overridden by specififying a TTL on `.set()`.
+
+#### options.serialize
+
+Type: `Function`<br>
+Default: `JSONB.stringify`
+
+A custom serialization function.
+
+#### options.deserialize
+
+Type: `Function`<br>
+Default: `JSONB.parse`
+
+A custom deserialization function.
+
+#### options.store
+
+Type: `Storage adapter instance`<br>
+Default: `new Map()`
+
+The storage adapter instance to be used by Keyv.
+
+#### options.adapter
+
+Type: `String`<br>
+Default: `undefined`
+
+Specify an adapter to use. e.g `'redis'` or `'mongodb'`.
+
+### Instance
+
+Keys must always be strings. Values can be of any type.
+
+#### .set(key, value, [ttl])
+
+Set a value.
+
+By default keys are persistent. You can set an expiry TTL in milliseconds.
+
+Returns `true`.
+
+#### .get(key)
+
+Returns the value.
+
+#### .delete(key)
+
+Deletes an entry.
+
+Returns `true` if the key existed, `false` if not.
+
+#### .clear()
+
+Delete all entries in the current namespace.
+
+Returns `undefined`.
+
+## License
+
+MIT © Luke Childs
diff --git a/helloworld/node_modules/keyv/package.json b/helloworld/node_modules/keyv/package.json
new file mode 100755
index 0000000..bca0ef3
--- /dev/null
+++ b/helloworld/node_modules/keyv/package.json
@@ -0,0 +1,78 @@
+{
+  "_from": "keyv@^3.0.0",
+  "_id": "keyv@3.1.0",
+  "_inBundle": false,
+  "_integrity": "sha512-9ykJ/46SN/9KPM/sichzQ7OvXyGDYKGTaDlKMGCAlg2UK8KRy4jb0d8sFc+0Tt0YYnThq8X2RZgCg74RPxgcVA==",
+  "_location": "/keyv",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "keyv@^3.0.0",
+    "name": "keyv",
+    "escapedName": "keyv",
+    "rawSpec": "^3.0.0",
+    "saveSpec": null,
+    "fetchSpec": "^3.0.0"
+  },
+  "_requiredBy": [
+    "/cacheable-request"
+  ],
+  "_resolved": "https://registry.npmjs.org/keyv/-/keyv-3.1.0.tgz",
+  "_shasum": "ecc228486f69991e49e9476485a5be1e8fc5c4d9",
+  "_spec": "keyv@^3.0.0",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/cacheable-request",
+  "author": {
+    "name": "Luke Childs",
+    "email": "lukechilds123@gmail.com",
+    "url": "http://lukechilds.co.uk"
+  },
+  "bugs": {
+    "url": "https://github.com/lukechilds/keyv/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "json-buffer": "3.0.0"
+  },
+  "deprecated": false,
+  "description": "Simple key-value storage with support for multiple backends",
+  "devDependencies": {
+    "@keyv/mongo": "*",
+    "@keyv/mysql": "*",
+    "@keyv/postgres": "*",
+    "@keyv/redis": "*",
+    "@keyv/sqlite": "*",
+    "@keyv/test-suite": "*",
+    "ava": "^0.25.0",
+    "coveralls": "^3.0.0",
+    "eslint-config-xo-lukechilds": "^1.0.0",
+    "nyc": "^11.0.3",
+    "this": "^1.0.2",
+    "timekeeper": "^2.0.0",
+    "xo": "^0.20.1"
+  },
+  "homepage": "https://github.com/lukechilds/keyv",
+  "keywords": [
+    "key",
+    "value",
+    "store",
+    "cache",
+    "ttl"
+  ],
+  "license": "MIT",
+  "main": "src/index.js",
+  "name": "keyv",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/lukechilds/keyv.git"
+  },
+  "scripts": {
+    "coverage": "nyc report --reporter=text-lcov | coveralls",
+    "test": "xo && nyc ava test/keyv.js",
+    "test:full": "xo && nyc ava --serial"
+  },
+  "version": "3.1.0",
+  "xo": {
+    "extends": "xo-lukechilds"
+  }
+}
diff --git a/helloworld/node_modules/keyv/src/index.js b/helloworld/node_modules/keyv/src/index.js
new file mode 100755
index 0000000..02af495
--- /dev/null
+++ b/helloworld/node_modules/keyv/src/index.js
@@ -0,0 +1,103 @@
+'use strict';
+
+const EventEmitter = require('events');
+const JSONB = require('json-buffer');
+
+const loadStore = opts => {
+	const adapters = {
+		redis: '@keyv/redis',
+		mongodb: '@keyv/mongo',
+		mongo: '@keyv/mongo',
+		sqlite: '@keyv/sqlite',
+		postgresql: '@keyv/postgres',
+		postgres: '@keyv/postgres',
+		mysql: '@keyv/mysql'
+	};
+	if (opts.adapter || opts.uri) {
+		const adapter = opts.adapter || /^[^:]*/.exec(opts.uri)[0];
+		return new (require(adapters[adapter]))(opts);
+	}
+	return new Map();
+};
+
+class Keyv extends EventEmitter {
+	constructor(uri, opts) {
+		super();
+		this.opts = Object.assign(
+			{
+				namespace: 'keyv',
+				serialize: JSONB.stringify,
+				deserialize: JSONB.parse
+			},
+			(typeof uri === 'string') ? { uri } : uri,
+			opts
+		);
+
+		if (!this.opts.store) {
+			const adapterOpts = Object.assign({}, this.opts);
+			this.opts.store = loadStore(adapterOpts);
+		}
+
+		if (typeof this.opts.store.on === 'function') {
+			this.opts.store.on('error', err => this.emit('error', err));
+		}
+
+		this.opts.store.namespace = this.opts.namespace;
+	}
+
+	_getKeyPrefix(key) {
+		return `${this.opts.namespace}:${key}`;
+	}
+
+	get(key) {
+		key = this._getKeyPrefix(key);
+		const store = this.opts.store;
+		return Promise.resolve()
+			.then(() => store.get(key))
+			.then(data => {
+				data = (typeof data === 'string') ? this.opts.deserialize(data) : data;
+				if (data === undefined) {
+					return undefined;
+				}
+				if (typeof data.expires === 'number' && Date.now() > data.expires) {
+					this.delete(key);
+					return undefined;
+				}
+				return data.value;
+			});
+	}
+
+	set(key, value, ttl) {
+		key = this._getKeyPrefix(key);
+		if (typeof ttl === 'undefined') {
+			ttl = this.opts.ttl;
+		}
+		if (ttl === 0) {
+			ttl = undefined;
+		}
+		const store = this.opts.store;
+
+		return Promise.resolve()
+			.then(() => {
+				const expires = (typeof ttl === 'number') ? (Date.now() + ttl) : null;
+				value = { value, expires };
+				return store.set(key, this.opts.serialize(value), ttl);
+			})
+			.then(() => true);
+	}
+
+	delete(key) {
+		key = this._getKeyPrefix(key);
+		const store = this.opts.store;
+		return Promise.resolve()
+			.then(() => store.delete(key));
+	}
+
+	clear() {
+		const store = this.opts.store;
+		return Promise.resolve()
+			.then(() => store.clear());
+	}
+}
+
+module.exports = Keyv;
diff --git a/helloworld/node_modules/lcid/index.js b/helloworld/node_modules/lcid/index.js
new file mode 100755
index 0000000..69bd3d2
--- /dev/null
+++ b/helloworld/node_modules/lcid/index.js
@@ -0,0 +1,22 @@
+'use strict';
+var invertKv = require('invert-kv');
+var all = require('./lcid.json');
+var inverted = invertKv(all);
+
+exports.from = function (lcidCode) {
+	if (typeof lcidCode !== 'number') {
+		throw new TypeError('Expected a number');
+	}
+
+	return inverted[lcidCode];
+};
+
+exports.to = function (localeId) {
+	if (typeof localeId !== 'string') {
+		throw new TypeError('Expected a string');
+	}
+
+	return all[localeId];
+};
+
+exports.all = all;
diff --git a/helloworld/node_modules/lcid/lcid.json b/helloworld/node_modules/lcid/lcid.json
new file mode 100755
index 0000000..9c89f6a
--- /dev/null
+++ b/helloworld/node_modules/lcid/lcid.json
@@ -0,0 +1,203 @@
+{
+	"af_ZA": 1078,
+	"am_ET": 1118,
+	"ar_AE": 14337,
+	"ar_BH": 15361,
+	"ar_DZ": 5121,
+	"ar_EG": 3073,
+	"ar_IQ": 2049,
+	"ar_JO": 11265,
+	"ar_KW": 13313,
+	"ar_LB": 12289,
+	"ar_LY": 4097,
+	"ar_MA": 6145,
+	"ar_OM": 8193,
+	"ar_QA": 16385,
+	"ar_SA": 1025,
+	"ar_SY": 10241,
+	"ar_TN": 7169,
+	"ar_YE": 9217,
+	"arn_CL": 1146,
+	"as_IN": 1101,
+	"az_AZ": 2092,
+	"ba_RU": 1133,
+	"be_BY": 1059,
+	"bg_BG": 1026,
+	"bn_IN": 1093,
+	"bo_BT": 2129,
+	"bo_CN": 1105,
+	"br_FR": 1150,
+	"bs_BA": 8218,
+	"ca_ES": 1027,
+	"co_FR": 1155,
+	"cs_CZ": 1029,
+	"cy_GB": 1106,
+	"da_DK": 1030,
+	"de_AT": 3079,
+	"de_CH": 2055,
+	"de_DE": 1031,
+	"de_LI": 5127,
+	"de_LU": 4103,
+	"div_MV": 1125,
+	"dsb_DE": 2094,
+	"el_GR": 1032,
+	"en_AU": 3081,
+	"en_BZ": 10249,
+	"en_CA": 4105,
+	"en_CB": 9225,
+	"en_GB": 2057,
+	"en_IE": 6153,
+	"en_IN": 18441,
+	"en_JA": 8201,
+	"en_MY": 17417,
+	"en_NZ": 5129,
+	"en_PH": 13321,
+	"en_TT": 11273,
+	"en_US": 1033,
+	"en_ZA": 7177,
+	"en_ZW": 12297,
+	"es_AR": 11274,
+	"es_BO": 16394,
+	"es_CL": 13322,
+	"es_CO": 9226,
+	"es_CR": 5130,
+	"es_DO": 7178,
+	"es_EC": 12298,
+	"es_ES": 3082,
+	"es_GT": 4106,
+	"es_HN": 18442,
+	"es_MX": 2058,
+	"es_NI": 19466,
+	"es_PA": 6154,
+	"es_PE": 10250,
+	"es_PR": 20490,
+	"es_PY": 15370,
+	"es_SV": 17418,
+	"es_UR": 14346,
+	"es_US": 21514,
+	"es_VE": 8202,
+	"et_EE": 1061,
+	"eu_ES": 1069,
+	"fa_IR": 1065,
+	"fi_FI": 1035,
+	"fil_PH": 1124,
+	"fo_FO": 1080,
+	"fr_BE": 2060,
+	"fr_CA": 3084,
+	"fr_CH": 4108,
+	"fr_FR": 1036,
+	"fr_LU": 5132,
+	"fr_MC": 6156,
+	"fy_NL": 1122,
+	"ga_IE": 2108,
+	"gbz_AF": 1164,
+	"gl_ES": 1110,
+	"gsw_FR": 1156,
+	"gu_IN": 1095,
+	"ha_NG": 1128,
+	"he_IL": 1037,
+	"hi_IN": 1081,
+	"hr_BA": 4122,
+	"hr_HR": 1050,
+	"hu_HU": 1038,
+	"hy_AM": 1067,
+	"id_ID": 1057,
+	"ii_CN": 1144,
+	"is_IS": 1039,
+	"it_CH": 2064,
+	"it_IT": 1040,
+	"iu_CA": 2141,
+	"ja_JP": 1041,
+	"ka_GE": 1079,
+	"kh_KH": 1107,
+	"kk_KZ": 1087,
+	"kl_GL": 1135,
+	"kn_IN": 1099,
+	"ko_KR": 1042,
+	"kok_IN": 1111,
+	"ky_KG": 1088,
+	"lb_LU": 1134,
+	"lo_LA": 1108,
+	"lt_LT": 1063,
+	"lv_LV": 1062,
+	"mi_NZ": 1153,
+	"mk_MK": 1071,
+	"ml_IN": 1100,
+	"mn_CN": 2128,
+	"mn_MN": 1104,
+	"moh_CA": 1148,
+	"mr_IN": 1102,
+	"ms_BN": 2110,
+	"ms_MY": 1086,
+	"mt_MT": 1082,
+	"my_MM": 1109,
+	"nb_NO": 1044,
+	"ne_NP": 1121,
+	"nl_BE": 2067,
+	"nl_NL": 1043,
+	"nn_NO": 2068,
+	"ns_ZA": 1132,
+	"oc_FR": 1154,
+	"or_IN": 1096,
+	"pa_IN": 1094,
+	"pl_PL": 1045,
+	"ps_AF": 1123,
+	"pt_BR": 1046,
+	"pt_PT": 2070,
+	"qut_GT": 1158,
+	"quz_BO": 1131,
+	"quz_EC": 2155,
+	"quz_PE": 3179,
+	"rm_CH": 1047,
+	"ro_RO": 1048,
+	"ru_RU": 1049,
+	"rw_RW": 1159,
+	"sa_IN": 1103,
+	"sah_RU": 1157,
+	"se_FI": 3131,
+	"se_NO": 1083,
+	"se_SE": 2107,
+	"si_LK": 1115,
+	"sk_SK": 1051,
+	"sl_SI": 1060,
+	"sma_NO": 6203,
+	"sma_SE": 7227,
+	"smj_NO": 4155,
+	"smj_SE": 5179,
+	"smn_FI": 9275,
+	"sms_FI": 8251,
+	"sq_AL": 1052,
+	"sr_BA": 7194,
+	"sr_SP": 3098,
+	"sv_FI": 2077,
+	"sv_SE": 1053,
+	"sw_KE": 1089,
+	"syr_SY": 1114,
+	"ta_IN": 1097,
+	"te_IN": 1098,
+	"tg_TJ": 1064,
+	"th_TH": 1054,
+	"tk_TM": 1090,
+	"tmz_DZ": 2143,
+	"tn_ZA": 1074,
+	"tr_TR": 1055,
+	"tt_RU": 1092,
+	"ug_CN": 1152,
+	"uk_UA": 1058,
+	"ur_IN": 2080,
+	"ur_PK": 1056,
+	"uz_UZ": 2115,
+	"vi_VN": 1066,
+	"wen_DE": 1070,
+	"wo_SN": 1160,
+	"xh_ZA": 1076,
+	"yo_NG": 1130,
+	"zh_CHS": 4,
+	"zh_CHT": 31748,
+	"zh_CN": 2052,
+	"zh_HK": 3076,
+	"zh_MO": 5124,
+	"zh_SG": 4100,
+	"zh_TW": 1028,
+	"zu_ZA": 1077
+}
diff --git a/helloworld/node_modules/lcid/license b/helloworld/node_modules/lcid/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/lcid/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/lcid/readme.md b/helloworld/node_modules/lcid/readme.md
new file mode 100755
index 0000000..bee4a70
--- /dev/null
+++ b/helloworld/node_modules/lcid/readme.md
@@ -0,0 +1,35 @@
+# lcid [![Build Status](https://travis-ci.org/sindresorhus/lcid.svg?branch=master)](https://travis-ci.org/sindresorhus/lcid)
+
+> Mapping between [standard locale identifiers](http://en.wikipedia.org/wiki/Locale) and [Windows locale identifiers (LCID)](http://en.wikipedia.org/wiki/Locale#Specifics_for_Microsoft_platforms)
+
+Based on the [mapping](https://github.com/python/cpython/blob/be2a1a76fa43bb1ea1b3577bb5bdd506a2e90e37/Lib/locale.py#L1395-L1604) used in the Python standard library.
+
+The mapping itself is just a [JSON file](lcid.json) and can be used wherever.
+
+
+## Install
+
+```
+$ npm install --save lcid
+```
+
+
+## Usage
+
+```js
+var lcid = require('lcid');
+
+lcid.from(1044);
+//=> 'nb_NO'
+
+lcid.to('nb_NO');
+//=> 1044
+
+lcid.all;
+//=> {'af_ZA': 1078, ...}
+```
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/left-pad/COPYING b/helloworld/node_modules/left-pad/COPYING
new file mode 100755
index 0000000..299ad3b
--- /dev/null
+++ b/helloworld/node_modules/left-pad/COPYING
@@ -0,0 +1,14 @@
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+                    Version 2, December 2004
+
+ Copyright (C) 2014 Azer Koçulu <azer@roadbeats.com>
+
+ Everyone is permitted to copy and distribute verbatim or modified
+ copies of this license document, and changing it is allowed as long
+ as the name is changed.
+
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. You just DO WHAT THE FUCK YOU WANT TO.
+
diff --git a/helloworld/node_modules/left-pad/README.md b/helloworld/node_modules/left-pad/README.md
new file mode 100755
index 0000000..e86ca7c
--- /dev/null
+++ b/helloworld/node_modules/left-pad/README.md
@@ -0,0 +1,36 @@
+## left-pad
+
+String left pad
+
+[![Build Status][travis-image]][travis-url]
+
+## Install
+
+```bash
+$ npm install left-pad
+```
+
+## Usage
+
+```js
+const leftPad = require('left-pad')
+
+leftPad('foo', 5)
+// => "  foo"
+
+leftPad('foobar', 6)
+// => "foobar"
+
+leftPad(1, 2, '0')
+// => "01"
+
+leftPad(17, 5, 0)
+// => "00017"
+```
+
+**NOTE:** The third argument should be a single `char`. However the module doesn't throw an error if you supply more than one `char`s. See [#28](https://github.com/stevemao/left-pad/pull/28).
+
+**NOTE:** Characters having code points outside of [BMP plan](https://en.wikipedia.org/wiki/Plane_(Unicode)#Basic_Multilingual_Plane) are considered a two distinct characters. See [#58](https://github.com/stevemao/left-pad/issues/58).
+
+[travis-image]: https://travis-ci.org/stevemao/left-pad.svg?branch=master
+[travis-url]: https://travis-ci.org/stevemao/left-pad
diff --git a/helloworld/node_modules/left-pad/index.d.ts b/helloworld/node_modules/left-pad/index.d.ts
new file mode 100755
index 0000000..3e410b8
--- /dev/null
+++ b/helloworld/node_modules/left-pad/index.d.ts
@@ -0,0 +1,9 @@
+// Type definitions for left-pad 1.2.0
+// Project: https://github.com/stevemao/left-pad
+// Definitions by: Zlatko Andonovski, Andrew Yang, Chandler Fang and Zac Xu
+
+declare function leftPad(str: string|number, len: number, ch?: string|number): string;
+
+declare namespace leftPad { }
+
+export = leftPad;
diff --git a/helloworld/node_modules/left-pad/index.js b/helloworld/node_modules/left-pad/index.js
new file mode 100755
index 0000000..e90aec3
--- /dev/null
+++ b/helloworld/node_modules/left-pad/index.js
@@ -0,0 +1,52 @@
+/* This program is free software. It comes without any warranty, to
+     * the extent permitted by applicable law. You can redistribute it
+     * and/or modify it under the terms of the Do What The Fuck You Want
+     * To Public License, Version 2, as published by Sam Hocevar. See
+     * http://www.wtfpl.net/ for more details. */
+'use strict';
+module.exports = leftPad;
+
+var cache = [
+  '',
+  ' ',
+  '  ',
+  '   ',
+  '    ',
+  '     ',
+  '      ',
+  '       ',
+  '        ',
+  '         '
+];
+
+function leftPad (str, len, ch) {
+  // convert `str` to a `string`
+  str = str + '';
+  // `len` is the `pad`'s length now
+  len = len - str.length;
+  // doesn't need to pad
+  if (len <= 0) return str;
+  // `ch` defaults to `' '`
+  if (!ch && ch !== 0) ch = ' ';
+  // convert `ch` to a `string` cuz it could be a number
+  ch = ch + '';
+  // cache common use cases
+  if (ch === ' ' && len < 10) return cache[len] + str;
+  // `pad` starts with an empty string
+  var pad = '';
+  // loop
+  while (true) {
+    // add `ch` to `pad` if `len` is odd
+    if (len & 1) pad += ch;
+    // divide `len` by 2, ditch the remainder
+    len >>= 1;
+    // "double" the `ch` so this operation count grows logarithmically on `len`
+    // each time `ch` is "doubled", the `len` would need to be "doubled" too
+    // similar to finding a value in binary search tree, hence O(log(n))
+    if (len) ch += ch;
+    // `len` is 0, exit the loop
+    else break;
+  }
+  // pad `str`!
+  return pad + str;
+}
diff --git a/helloworld/node_modules/left-pad/package.json b/helloworld/node_modules/left-pad/package.json
new file mode 100755
index 0000000..5a75dd0
--- /dev/null
+++ b/helloworld/node_modules/left-pad/package.json
@@ -0,0 +1,67 @@
+{
+  "_from": "left-pad@^1.3.0",
+  "_id": "left-pad@1.3.0",
+  "_inBundle": false,
+  "_integrity": "sha512-XI5MPzVNApjAyhQzphX8BkmKsKUxD4LdyK24iZeQGinBN9yTQT3bFlCBy/aVx2HrNcqQGsdot8ghrjyrvMCoEA==",
+  "_location": "/left-pad",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "left-pad@^1.3.0",
+    "name": "left-pad",
+    "escapedName": "left-pad",
+    "rawSpec": "^1.3.0",
+    "saveSpec": null,
+    "fetchSpec": "^1.3.0"
+  },
+  "_requiredBy": [
+    "/"
+  ],
+  "_resolved": "https://registry.npmjs.org/left-pad/-/left-pad-1.3.0.tgz",
+  "_shasum": "5b8a3a7765dfe001261dde915589e782f8c94d1e",
+  "_spec": "left-pad@^1.3.0",
+  "_where": "/home/devesh/Desktop/pavanSinghal",
+  "author": {
+    "name": "azer"
+  },
+  "bugs": {
+    "url": "https://github.com/stevemao/left-pad/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "String left pad",
+  "devDependencies": {
+    "benchmark": "^2.1.0",
+    "fast-check": "0.0.8",
+    "tape": "*"
+  },
+  "homepage": "https://github.com/stevemao/left-pad#readme",
+  "keywords": [
+    "leftpad",
+    "left",
+    "pad",
+    "padding",
+    "string",
+    "repeat"
+  ],
+  "license": "WTFPL",
+  "main": "index.js",
+  "maintainers": [
+    {
+      "name": "Cameron Westland",
+      "email": "camwest@gmail.com"
+    }
+  ],
+  "name": "left-pad",
+  "repository": {
+    "url": "git+ssh://git@github.com/stevemao/left-pad.git",
+    "type": "git"
+  },
+  "scripts": {
+    "bench": "node perf/perf.js",
+    "test": "node test"
+  },
+  "types": "index.d.ts",
+  "version": "1.3.0"
+}
diff --git a/helloworld/node_modules/left-pad/perf/O(n).js b/helloworld/node_modules/left-pad/perf/O(n).js
new file mode 100755
index 0000000..160fef2
--- /dev/null
+++ b/helloworld/node_modules/left-pad/perf/O(n).js
@@ -0,0 +1,17 @@
+'use strict';
+
+module.exports = function (str, len, ch) {
+  str = str + '';
+
+  len = len - str.length;
+  if (len <= 0) return str;
+
+  if (!ch && ch !== 0) ch = ' ';
+  ch = ch + '';
+
+  while (len--) {
+    str = ch + str;
+  }
+
+  return str;
+}
diff --git a/helloworld/node_modules/left-pad/perf/es6Repeat.js b/helloworld/node_modules/left-pad/perf/es6Repeat.js
new file mode 100755
index 0000000..c26862b
--- /dev/null
+++ b/helloworld/node_modules/left-pad/perf/es6Repeat.js
@@ -0,0 +1,13 @@
+'use strict';
+
+module.exports = function (str, len, ch) {
+  str = str + '';
+
+  len = len - str.length;
+  if (len <= 0) return str;
+
+  if (!ch && ch !== 0) ch = ' ';
+  ch = ch + '';
+
+  return ch.repeat(len) + str;
+};
diff --git a/helloworld/node_modules/left-pad/perf/perf.js b/helloworld/node_modules/left-pad/perf/perf.js
new file mode 100755
index 0000000..eb134fa
--- /dev/null
+++ b/helloworld/node_modules/left-pad/perf/perf.js
@@ -0,0 +1,40 @@
+'use strict';
+var oN = require('./O(n)');
+var es6Repeat = require('./es6Repeat');
+var current = require('../');
+
+var Benchmark = require('benchmark');
+
+var str = "abcd"
+var len = 100;
+
+function buildSuite (note, fns, args) {
+  console.log(note);
+  var suite = new Benchmark.Suite;
+
+  Object.keys(fns).forEach(function (name) {
+    suite.add(name, function () {
+      fns[name].apply(null, args);
+    });
+  });
+  suite.on('cycle', function (event) {
+    console.log(String(event.target));
+  }).on('complete', function () {
+    console.log('Fastest is ' + this.filter('fastest').map('name'));
+  });
+
+  return suite;
+}
+
+var fns = {
+  'O(n)': oN,
+  'ES6 Repeat': es6Repeat,
+  'Current': current
+};
+
+buildSuite('-> pad 100 spaces to str of len 4', fns, ['abcd', 104, ' ']).run();
+buildSuite('-> pad 10 spaces to str of len 4', fns, ['abcd', 14,  ' ']).run();
+buildSuite('-> pad 9 spaces to str of len 4', fns, ['abcd', 13,  ' ']).run();
+buildSuite('-> pad 100 to str of len 100', fns, ['0012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789123456789', 200, ' ']).run();
+buildSuite('-> pad 10 to str of len 100', fns, ['0012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789123456789', 110, ' ']).run();
+buildSuite('-> pad 9 to str of len 100', fns, ['0012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789123456789', 109, ' ']).run();
diff --git a/helloworld/node_modules/left-pad/test.js b/helloworld/node_modules/left-pad/test.js
new file mode 100755
index 0000000..bcbe708
--- /dev/null
+++ b/helloworld/node_modules/left-pad/test.js
@@ -0,0 +1,88 @@
+/* This program is free software. It comes without any warranty, to
+     * the extent permitted by applicable law. You can redistribute it
+     * and/or modify it under the terms of the Do What The Fuck You Want
+     * To Public License, Version 2, as published by Sam Hocevar. See
+     * http://www.wtfpl.net/ for more details. */
+var leftPad = require("./");
+var test = require("tape");
+var fc = require("fast-check");
+
+test('edge cases', function (assert) {
+  assert.plan(12);
+  assert.strictEqual(leftPad('foobar', 6), 'foobar');
+  assert.strictEqual(leftPad('foobar', 5), 'foobar');
+  assert.strictEqual(leftPad('foobar', -1), 'foobar');
+  assert.strictEqual(leftPad('foobar', 6, '1'), 'foobar');
+  assert.strictEqual(leftPad('foobar', 5, '1'), 'foobar');
+  assert.strictEqual(leftPad('foobar', -1, '1'), 'foobar');
+  assert.strictEqual(leftPad('foobar', 8, ''), '  foobar');
+  assert.strictEqual(leftPad('foobar', 8, false), '  foobar', 'false default to space');
+  assert.strictEqual(leftPad('foobar', 8, 0), '00foobar', '0 is treated as 0');
+  assert.strictEqual(leftPad(0, 3, 1), '110', 'integer for str is converted to string');
+  assert.strictEqual(leftPad(true, 7), '   true', 'boolean for str is converted to string');
+  assert.strictEqual(leftPad('', 2), '  ', 'empty str for str');
+});
+
+test('spaces for ch', function (assert) {
+  assert.plan(12);
+  // default to space if not specified
+  assert.strictEqual(leftPad('foo', 2), 'foo');
+  assert.strictEqual(leftPad('foo', 3), 'foo');
+  assert.strictEqual(leftPad('foo', 4), ' foo');
+  assert.strictEqual(leftPad('foo', 5), '  foo');
+  assert.strictEqual(leftPad('foo', 12), '         foo');
+  assert.strictEqual(leftPad('foo', 13), '          foo');
+  // explicit space param
+  assert.strictEqual(leftPad('foo', 2, ' '), 'foo');
+  assert.strictEqual(leftPad('foo', 3, ' '), 'foo');
+  assert.strictEqual(leftPad('foo', 4, ' '), ' foo');
+  assert.strictEqual(leftPad('foo', 5, ' '), '  foo');
+  assert.strictEqual(leftPad('foo', 12, ' '), '         foo');
+  assert.strictEqual(leftPad('foo', 13, ' '), '          foo');
+});
+
+test('non spaces for ch', function (assert) {
+  assert.plan(7);
+  assert.strictEqual(leftPad(1, 2, 0), '01');
+  assert.strictEqual(leftPad(1, 2, '-'), '-1');
+  assert.strictEqual(leftPad('foo', 4, '*'), '*foo', '0b1 len');
+  assert.strictEqual(leftPad('foo', 5, '*'), '**foo', '0b10 len');
+  assert.strictEqual(leftPad('foo', 6, '*'), '***foo', '0b11 len');
+  assert.strictEqual(leftPad('foo', 7, '*'), '****foo', '0b001 len');
+  assert.strictEqual(leftPad('foo', 103, '*'), '****************************************************************************************************foo', '100 pad');
+});
+
+var runProperty = function(assert, name, checkFn) {
+  var prop = fc.property(fc.string(), fc.nat(1000), fc.char(), checkFn);
+  var result = fc.check(prop);
+  var message = '';
+  if (result.failed) {
+    message = 'Property "' + name + '" failed on counterexample ' + JSON.stringify(result.counterexample) + ' (seed: ' + result.seed + ')';
+  }
+  assert.strictEqual(message, '', name);
+};
+
+test('properties', function (assert) {
+  assert.plan(4);
+  runProperty(assert, 'starts by ch', function(str, len, ch) {
+      var beg = leftPad(str, len, ch).substr(0, len -str.length);
+      for (var idx = 0 ; idx != beg.length ; ++idx)
+        if (beg[idx] !== ch)
+          return false;
+      return true;
+  });
+  runProperty(assert, 'ends by str', function(str, len, ch) {
+      var out = leftPad(str, len, ch);
+      for (var idx = 0 ; idx != str.length ; ++idx)
+        if (str[str.length -idx -1] !== out[out.length -idx -1])
+          return false;
+      return true;
+  });
+  runProperty(assert, 'len char long if padded (unchanged otherwise)', function(str, len, ch) {
+      var out = leftPad(str, len, ch);
+      return str.length < len ? out.length === len : str === out;
+  });
+  runProperty(assert, 'no ch equivalent to space', function(str, len) {
+      return leftPad(str, len) === leftPad(str, len, ' ');
+  });
+});
diff --git a/helloworld/node_modules/load-json-file/index.js b/helloworld/node_modules/load-json-file/index.js
new file mode 100755
index 0000000..96d4d9f
--- /dev/null
+++ b/helloworld/node_modules/load-json-file/index.js
@@ -0,0 +1,21 @@
+'use strict';
+var path = require('path');
+var fs = require('graceful-fs');
+var stripBom = require('strip-bom');
+var parseJson = require('parse-json');
+var Promise = require('pinkie-promise');
+var pify = require('pify');
+
+function parse(x, fp) {
+	return parseJson(stripBom(x), path.relative(process.cwd(), fp));
+}
+
+module.exports = function (fp) {
+	return pify(fs.readFile, Promise)(fp, 'utf8').then(function (data) {
+		return parse(data, fp);
+	});
+};
+
+module.exports.sync = function (fp) {
+	return parse(fs.readFileSync(fp, 'utf8'), fp);
+};
diff --git a/helloworld/node_modules/load-json-file/license b/helloworld/node_modules/load-json-file/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/load-json-file/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/load-json-file/readme.md b/helloworld/node_modules/load-json-file/readme.md
new file mode 100755
index 0000000..fa982b5
--- /dev/null
+++ b/helloworld/node_modules/load-json-file/readme.md
@@ -0,0 +1,45 @@
+# load-json-file [![Build Status](https://travis-ci.org/sindresorhus/load-json-file.svg?branch=master)](https://travis-ci.org/sindresorhus/load-json-file)
+
+> Read and parse a JSON file
+
+[Strips UTF-8 BOM](https://github.com/sindresorhus/strip-bom), uses [`graceful-fs`](https://github.com/isaacs/node-graceful-fs), and throws more [helpful JSON errors](https://github.com/sindresorhus/parse-json).
+
+
+## Install
+
+```
+$ npm install --save load-json-file
+```
+
+
+## Usage
+
+```js
+const loadJsonFile = require('load-json-file');
+
+loadJsonFile('foo.json').then(json => {
+	console.log(json);
+	//=> {foo: true}
+});
+```
+
+
+## API
+
+### loadJsonFile(filepath)
+
+Returns a promise that resolves to the parsed JSON.
+
+### loadJsonFile.sync(filepath)
+
+Returns the parsed JSON.
+
+
+## Related
+
+- [write-json-file](https://github.com/sindresorhus/write-json-file) - Stringify and write JSON to a file atomically
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/localtunnel/History.md b/helloworld/node_modules/localtunnel/History.md
new file mode 100755
index 0000000..602cf03
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/History.md
@@ -0,0 +1,61 @@
+# 1.9.1 (2018-09-08)
+
+* Update debug to 2.6.9
+
+# 1.9.0 (2018-04-03)
+
+* Add _request_ event to Tunnel emitter
+* Update yargs to support config via environment variables
+* Add basic request logging when --print-requests argument is used
+
+# 1.8.3 (2017-06-11)
+
+* update request dependency
+* update debug dependency
+* update openurl dependency
+
+# 1.8.2 (2016-11-17)
+
+* fix host header transform
+* update request dependency
+
+# 1.8.1 (2016-01-20)
+
+* fix bug w/ HostHeaderTransformer and binary data
+
+# 1.8.0 (2015-11-04)
+
+* pass socket errors up to top level
+
+# 1.7.0 (2015-07-22)
+
+* add short arg options
+
+# 1.6.0 (2015-05-15)
+
+* keep sockets alive after connecting
+* add --open param to CLI
+
+# 1.5.0 (2014-10-25)
+
+* capture all errors on remote socket and restart the tunnel
+
+# 1.4.0 (2014-08-31)
+
+* don't emit errors for ETIMEDOUT
+
+# 1.2.0 / 2014-04-28
+
+* return `client` from `localtunnel` API instantiation
+
+# 1.1.0 / 2014-02-24
+
+* add a host header transform to change the 'Host' header in requests
+
+# 1.0.0 / 2014-02-14
+
+* default to localltunnel.me for host
+* remove exported `connect` method (just export one function that does the same thing)
+* change localtunnel signature to (port, opt, fn)
+
+# 0.2.2 / 2014-01-09
diff --git a/helloworld/node_modules/localtunnel/LICENSE b/helloworld/node_modules/localtunnel/LICENSE
new file mode 100755
index 0000000..1082bca
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 Roman Shtylman
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/helloworld/node_modules/localtunnel/README.md b/helloworld/node_modules/localtunnel/README.md
new file mode 100755
index 0000000..f0dfe63
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/README.md
@@ -0,0 +1,100 @@
+# localtunnel
+
+[![Build Status](https://travis-ci.org/localtunnel/localtunnel.svg?branch=master)](https://travis-ci.org/localtunnel/localtunnel)
+
+localtunnel exposes your localhost to the world for easy testing and sharing! No need to mess with DNS or deploy just to have others test out your changes.
+
+Great for working with browser testing tools like browserling or external api callback services like twilio which require a public url for callbacks.
+
+## installation ##
+
+```
+npm install -g localtunnel
+```
+
+This will install the localtunnel module globally and add the 'lt' client cli tool to your PATH.
+
+## use ##
+
+Assuming your local server is running on port 8000, just use the ```lt``` command to start the tunnel.
+
+```
+lt --port 8000
+```
+
+Thats it! It will connect to the tunnel server, setup the tunnel, and tell you what url to use for your testing. This url will remain active for the duration of your session; so feel free to share it with others for happy fun time!
+
+You can restart your local server all you want, ```lt``` is smart enough to detect this and reconnect once it is back.
+
+### arguments
+
+Below are some common arguments. See `lt --help` for additional arguments
+
+* `--subdomain` request a named subdomain on the localtunnel server (default is random characters)
+* `--local-host` proxy to a hostname other than localhost
+
+You may also specify arguments via env variables.  E.x.
+
+```
+PORT=3000 lt
+```
+
+## API ##
+
+The localtunnel client is also usable through an API (for test integration, automation, etc)
+
+### localtunnel(port [,opts], fn)
+
+Creates a new localtunnel to the specified local `port`. `fn` will be called once you have been assigned a public localtunnel url. `opts` can be used to request a specific `subdomain`.
+
+```javascript
+var localtunnel = require('localtunnel');
+
+var tunnel = localtunnel(port, function(err, tunnel) {
+    if (err) ...
+
+    // the assigned public url for your tunnel
+    // i.e. https://abcdefgjhij.localtunnel.me
+    tunnel.url;
+});
+
+tunnel.on('close', function() {
+    // tunnels are closed
+});
+```
+
+### opts
+
+* `subdomain` A *string* value requesting a specific subdomain on the proxy server. **Note** You may not actually receive this name depending on availability.
+* `local_host` Proxy to this hostname instead of `localhost`. This will also cause the `Host` header to be re-written to this value in proxied requests.
+
+### Tunnel
+
+The `tunnel` instance returned to your callback emits the following events
+
+|event|args|description|
+|----|----|----|
+|request|info|fires when a request is processed by the tunnel, contains _method_ and _path_ fields|
+|error|err|fires when an error happens on the tunnel|
+|close||fires when the tunnel has closed|
+
+The `tunnel` instance has the following methods
+
+|method|args|description|
+|----|----|----|
+|close||close the tunnel|
+
+## other clients ##
+
+Clients in other languages
+
+*go* [gotunnelme](https://github.com/NoahShen/gotunnelme)
+
+*go* [go-localtunnel](https://github.com/localtunnel/go-localtunnel)
+
+## server ##
+
+See [localtunnel/server](//github.com/localtunnel/server) for details on the server that powers localtunnel.
+
+## License ##
+MIT
diff --git a/helloworld/node_modules/localtunnel/bin/client b/helloworld/node_modules/localtunnel/bin/client
new file mode 100755
index 0000000..9903538
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/bin/client
@@ -0,0 +1,75 @@
+#!/usr/bin/env node
+var lt_client = require('../client');
+var open_url = require('openurl');
+
+var argv = require('yargs')
+    .usage('Usage: $0 --port [num] <options>')
+    .env(true)
+    .option('h', {
+        alias: 'host',
+        describe: 'Upstream server providing forwarding',
+        default: 'https://localtunnel.me',
+    })
+    .option('s', {
+        alias: 'subdomain',
+        describe: 'Request this subdomain'
+    })
+    .option('l', {
+        alias: 'local-host',
+        describe: 'Tunnel traffic to this host instead of localhost, override Host header to this host'
+    })
+    .options('o', {
+        alias: 'open',
+        describe: 'opens url in your browser'
+    })
+    .option('p', {
+        alias: 'port',
+        describe: 'Internal http server port',
+    })
+    .option('print-requests', {
+        describe: 'Print basic request info',
+    })
+    .require('port')
+    .boolean('print-requests')
+    .help('help', 'Show this help and exit')
+    .version(require('../package').version)
+    .argv;
+
+if (typeof argv.port !== 'number') {
+    require('yargs').showHelp();
+    console.error('port must be a number');
+    process.exit(1);
+}
+
+var opt = {
+    host: argv.host,
+    port: argv.port,
+    local_host: argv['local-host'],
+    subdomain: argv.subdomain,
+};
+
+const PrintRequests = argv['print-requests'];
+
+lt_client(opt.port, opt, function(err, tunnel) {
+    if (err) {
+        throw err;
+    }
+
+    console.log('your url is: %s', tunnel.url);
+
+    if (argv.open) {
+        open_url.open(tunnel.url);
+    }
+
+    tunnel.on('error', function(err) {
+        throw err;
+    });
+
+    if (PrintRequests) {
+        tunnel.on('request', function(info) {
+            console.log(new Date().toString(), info.method, info.path);
+        });
+    }
+});
+
+// vim: ft=javascript
diff --git a/helloworld/node_modules/localtunnel/client.js b/helloworld/node_modules/localtunnel/client.js
new file mode 100755
index 0000000..5dcf0ba
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/client.js
@@ -0,0 +1,24 @@
+var EventEmitter = require('events').EventEmitter;
+var debug = require('debug')('localtunnel:client');
+
+var Tunnel = require('./lib/Tunnel');
+
+module.exports = function localtunnel(port, opt, fn) {
+    if (typeof opt === 'function') {
+        fn = opt;
+        opt = {};
+    }
+
+    opt = opt || {};
+    opt.port = port;
+
+    var client = Tunnel(opt);
+    client.open(function(err) {
+        if (err) {
+            return fn(err);
+        }
+
+        fn(null, client);
+    });
+    return client;
+};
diff --git a/helloworld/node_modules/localtunnel/lib/HeaderHostTransformer.js b/helloworld/node_modules/localtunnel/lib/HeaderHostTransformer.js
new file mode 100755
index 0000000..f0eccdb
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/lib/HeaderHostTransformer.js
@@ -0,0 +1,39 @@
+var stream = require('stream');
+var util = require('util');
+
+var Transform = stream.Transform;
+
+var HeaderHostTransformer = function(opts) {
+    if (!(this instanceof HeaderHostTransformer)) {
+        return new HeaderHostTransformer(opts);
+    }
+
+    opts = opts || {}
+    Transform.call(this, opts);
+
+    var self = this;
+    self.host = opts.host || 'localhost';
+    self.replaced = false;
+}
+util.inherits(HeaderHostTransformer, Transform);
+
+HeaderHostTransformer.prototype._transform = function (chunk, enc, cb) {
+    var self = this;
+
+    // after replacing the first instance of the Host header
+    // we just become a regular passthrough
+    if (!self.replaced) {
+        chunk = chunk.toString();
+        self.push(chunk.replace(/(\r\n[Hh]ost: )\S+/, function(match, $1) {
+            self.replaced = true;
+            return $1 + self.host;
+        }));
+    }
+    else {
+        self.push(chunk);
+    }
+
+    cb();
+};
+
+module.exports = HeaderHostTransformer;
diff --git a/helloworld/node_modules/localtunnel/lib/Tunnel.js b/helloworld/node_modules/localtunnel/lib/Tunnel.js
new file mode 100755
index 0000000..9c91daa
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/lib/Tunnel.js
@@ -0,0 +1,158 @@
+var url = require('url');
+var EventEmitter = require('events').EventEmitter;
+var axios = require('axios');
+var debug = require('debug')('localtunnel:client');
+
+var TunnelCluster = require('./TunnelCluster');
+
+var Tunnel = function(opt) {
+    if (!(this instanceof Tunnel)) {
+        return new Tunnel(opt);
+    }
+
+    var self = this;
+    self._closed = false;
+    self._opt = opt || {};
+
+    self._opt.host = self._opt.host || 'https://localtunnel.me';
+};
+
+Tunnel.prototype.__proto__ = EventEmitter.prototype;
+
+// initialize connection
+// callback with connection info
+Tunnel.prototype._init = function(cb) {
+    var self = this;
+    var opt = self._opt;
+
+    var params = {
+        responseType: 'json'
+    };
+
+    var base_uri = opt.host + '/';
+
+    // optionally override the upstream server
+    var upstream = url.parse(opt.host);
+
+    // no subdomain at first, maybe use requested domain
+    var assigned_domain = opt.subdomain;
+
+    // where to quest
+    var uri = base_uri + ((assigned_domain) ? assigned_domain : '?new');
+
+    (function get_url() {
+        axios.get(uri, params)
+        .then(function(res){
+            var body = res.data;
+            if (res.status !== 200) {
+                var err =  new Error((body && body.message) || 'localtunnel server returned an error, please try again');
+                return cb(err);
+            }
+            var port = body.port;
+            var host = upstream.hostname;
+            var max_conn = body.max_conn_count || 1;
+            cb(null, {
+                remote_host: upstream.hostname,
+                remote_port: body.port,
+                name: body.id,
+                url: body.url,
+                max_conn: max_conn
+            });
+        })
+        .catch(function(err){
+            // TODO (shtylman) don't print to stdout?
+            console.log('tunnel server offline: ' + err.message + ', retry 1s');
+            return setTimeout(get_url, 1000);
+        })
+    })();
+};
+
+Tunnel.prototype._establish = function(info) {
+    var self = this;
+    var opt = self._opt;
+
+    // increase max event listeners so that localtunnel consumers don't get
+    // warning messages as soon as they setup even one listener. See #71
+    self.setMaxListeners(info.max_conn + (EventEmitter.defaultMaxListeners || 10));
+
+    info.local_host = opt.local_host;
+    info.local_port = opt.port;
+
+    var tunnels = self.tunnel_cluster = TunnelCluster(info);
+
+    // only emit the url the first time
+    tunnels.once('open', function() {
+        self.emit('url', info.url);
+    });
+
+    // re-emit socket error
+    tunnels.on('error', function(err) {
+        self.emit('error', err);
+    });
+
+    var tunnel_count = 0;
+
+    // track open count
+    tunnels.on('open', function(tunnel) {
+        tunnel_count++;
+        debug('tunnel open [total: %d]', tunnel_count);
+
+        var close_handler = function() {
+            tunnel.destroy();
+        };
+
+        if (self._closed) {
+            return close_handler();
+        }
+
+        self.once('close', close_handler);
+        tunnel.once('close', function() {
+            self.removeListener('close', close_handler);
+        });
+    });
+
+    // when a tunnel dies, open a new one
+    tunnels.on('dead', function(tunnel) {
+        tunnel_count--;
+        debug('tunnel dead [total: %d]', tunnel_count);
+
+        if (self._closed) {
+            return;
+        }
+
+        tunnels.open();
+    });
+
+    tunnels.on('request', function(info) {
+        self.emit('request', info);
+    });
+
+    // establish as many tunnels as allowed
+    for (var count = 0 ; count < info.max_conn ; ++count) {
+        tunnels.open();
+    }
+};
+
+Tunnel.prototype.open = function(cb) {
+    var self = this;
+
+    self._init(function(err, info) {
+        if (err) {
+            return cb(err);
+        }
+
+        self.url = info.url;
+        self._establish(info);
+        cb();
+    });
+};
+
+// shutdown tunnels
+Tunnel.prototype.close = function() {
+    var self = this;
+
+    self._closed = true;
+    self.emit('close');
+};
+
+module.exports = Tunnel;
diff --git a/helloworld/node_modules/localtunnel/lib/TunnelCluster.js b/helloworld/node_modules/localtunnel/lib/TunnelCluster.js
new file mode 100755
index 0000000..708b7ba
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/lib/TunnelCluster.js
@@ -0,0 +1,133 @@
+var EventEmitter = require('events').EventEmitter;
+var debug = require('debug')('localtunnel:client');
+var net = require('net');
+
+var HeaderHostTransformer = require('./HeaderHostTransformer');
+
+// manages groups of tunnels
+var TunnelCluster = function(opt) {
+    if (!(this instanceof TunnelCluster)) {
+        return new TunnelCluster(opt);
+    }
+
+    var self = this;
+    self._opt = opt;
+
+    EventEmitter.call(self);
+};
+
+TunnelCluster.prototype.__proto__ = EventEmitter.prototype;
+
+// establish a new tunnel
+TunnelCluster.prototype.open = function() {
+    var self = this;
+
+    var opt = self._opt || {};
+
+    var remote_host = opt.remote_host;
+    var remote_port = opt.remote_port;
+
+    var local_host = opt.local_host || 'localhost';
+    var local_port = opt.local_port;
+
+    debug('establishing tunnel %s:%s <> %s:%s', local_host, local_port, remote_host, remote_port);
+
+    // connection to localtunnel server
+    var remote = net.connect({
+        host: remote_host,
+        port: remote_port
+    });
+
+    remote.setKeepAlive(true);
+
+    remote.on('error', function(err) {
+        // emit connection refused errors immediately, because they
+        // indicate that the tunnel can't be established.
+        if (err.code === 'ECONNREFUSED') {
+            self.emit('error', new Error('connection refused: ' + remote_host + ':' + remote_port + ' (check your firewall settings)'));
+        }
+
+        remote.end();
+    });
+
+    function conn_local() {
+        if (remote.destroyed) {
+            debug('remote destroyed');
+            self.emit('dead');
+            return;
+        }
+
+        debug('connecting locally to %s:%d', local_host, local_port);
+        remote.pause();
+
+        // connection to local http server
+        var local = net.connect({
+            host: local_host,
+            port: local_port
+        });
+
+        function remote_close() {
+            debug('remote close');
+            self.emit('dead');
+            local.end();
+        };
+
+        remote.once('close', remote_close);
+
+        // TODO some languages have single threaded servers which makes opening up
+        // multiple local connections impossible. We need a smarter way to scale
+        // and adjust for such instances to avoid beating on the door of the server
+        local.once('error', function(err) {
+            debug('local error %s', err.message);
+            local.end();
+
+            remote.removeListener('close', remote_close);
+
+            if (err.code !== 'ECONNREFUSED') {
+                return remote.end();
+            }
+
+            // retrying connection to local server
+            setTimeout(conn_local, 1000);
+        });
+
+        local.once('connect', function() {
+            debug('connected locally');
+            remote.resume();
+
+            var stream = remote;
+
+            // if user requested specific local host
+            // then we use host header transform to replace the host header
+            if (opt.local_host) {
+                debug('transform Host header to %s', opt.local_host);
+                stream = remote.pipe(HeaderHostTransformer({ host: opt.local_host }));
+            }
+
+            stream.pipe(local).pipe(remote);
+
+            // when local closes, also get a new remote
+            local.once('close', function(had_error) {
+                debug('local connection closed [%s]', had_error);
+            });
+        });
+    }
+
+    remote.on('data', function(data) {
+        const match = data.toString().match(/^(\w+) (\S+)/);
+        if (match) {
+            self.emit('request', {
+                method: match[1],
+                path: match[2],
+            });
+        }
+    });
+
+    // tunnel is considered open when remote connects
+    remote.once('connect', function() {
+        self.emit('open', remote);
+        conn_local();
+    });
+};
+
+module.exports = TunnelCluster;
diff --git a/helloworld/node_modules/localtunnel/node_modules/debug/CHANGELOG.md b/helloworld/node_modules/localtunnel/node_modules/debug/CHANGELOG.md
new file mode 100755
index 0000000..eadaa18
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/node_modules/debug/CHANGELOG.md
@@ -0,0 +1,362 @@
+
+2.6.9 / 2017-09-22
+==================
+
+  * remove ReDoS regexp in %o formatter (#504)
+
+2.6.8 / 2017-05-18
+==================
+
+  * Fix: Check for undefined on browser globals (#462, @marbemac)
+
+2.6.7 / 2017-05-16
+==================
+
+  * Fix: Update ms to 2.0.0 to fix regular expression denial of service vulnerability (#458, @hubdotcom)
+  * Fix: Inline extend function in node implementation (#452, @dougwilson)
+  * Docs: Fix typo (#455, @msasad)
+
+2.6.5 / 2017-04-27
+==================
+  
+  * Fix: null reference check on window.documentElement.style.WebkitAppearance (#447, @thebigredgeek)
+  * Misc: clean up browser reference checks (#447, @thebigredgeek)
+  * Misc: add npm-debug.log to .gitignore (@thebigredgeek)
+
+
+2.6.4 / 2017-04-20
+==================
+
+  * Fix: bug that would occure if process.env.DEBUG is a non-string value. (#444, @LucianBuzzo)
+  * Chore: ignore bower.json in npm installations. (#437, @joaovieira)
+  * Misc: update "ms" to v0.7.3 (@tootallnate)
+
+2.6.3 / 2017-03-13
+==================
+
+  * Fix: Electron reference to `process.env.DEBUG` (#431, @paulcbetts)
+  * Docs: Changelog fix (@thebigredgeek)
+
+2.6.2 / 2017-03-10
+==================
+
+  * Fix: DEBUG_MAX_ARRAY_LENGTH (#420, @slavaGanzin)
+  * Docs: Add backers and sponsors from Open Collective (#422, @piamancini)
+  * Docs: Add Slackin invite badge (@tootallnate)
+
+2.6.1 / 2017-02-10
+==================
+
+  * Fix: Module's `export default` syntax fix for IE8 `Expected identifier` error
+  * Fix: Whitelist DEBUG_FD for values 1 and 2 only (#415, @pi0)
+  * Fix: IE8 "Expected identifier" error (#414, @vgoma)
+  * Fix: Namespaces would not disable once enabled (#409, @musikov)
+
+2.6.0 / 2016-12-28
+==================
+
+  * Fix: added better null pointer checks for browser useColors (@thebigredgeek)
+  * Improvement: removed explicit `window.debug` export (#404, @tootallnate)
+  * Improvement: deprecated `DEBUG_FD` environment variable (#405, @tootallnate)
+
+2.5.2 / 2016-12-25
+==================
+
+  * Fix: reference error on window within webworkers (#393, @KlausTrainer)
+  * Docs: fixed README typo (#391, @lurch)
+  * Docs: added notice about v3 api discussion (@thebigredgeek)
+
+2.5.1 / 2016-12-20
+==================
+
+  * Fix: babel-core compatibility
+
+2.5.0 / 2016-12-20
+==================
+
+  * Fix: wrong reference in bower file (@thebigredgeek)
+  * Fix: webworker compatibility (@thebigredgeek)
+  * Fix: output formatting issue (#388, @kribblo)
+  * Fix: babel-loader compatibility (#383, @escwald)
+  * Misc: removed built asset from repo and publications (@thebigredgeek)
+  * Misc: moved source files to /src (#378, @yamikuronue)
+  * Test: added karma integration and replaced babel with browserify for browser tests (#378, @yamikuronue)
+  * Test: coveralls integration (#378, @yamikuronue)
+  * Docs: simplified language in the opening paragraph (#373, @yamikuronue)
+
+2.4.5 / 2016-12-17
+==================
+
+  * Fix: `navigator` undefined in Rhino (#376, @jochenberger)
+  * Fix: custom log function (#379, @hsiliev)
+  * Improvement: bit of cleanup + linting fixes (@thebigredgeek)
+  * Improvement: rm non-maintainted `dist/` dir (#375, @freewil)
+  * Docs: simplified language in the opening paragraph. (#373, @yamikuronue)
+
+2.4.4 / 2016-12-14
+==================
+
+  * Fix: work around debug being loaded in preload scripts for electron (#368, @paulcbetts)
+
+2.4.3 / 2016-12-14
+==================
+
+  * Fix: navigation.userAgent error for react native (#364, @escwald)
+
+2.4.2 / 2016-12-14
+==================
+
+  * Fix: browser colors (#367, @tootallnate)
+  * Misc: travis ci integration (@thebigredgeek)
+  * Misc: added linting and testing boilerplate with sanity check (@thebigredgeek)
+
+2.4.1 / 2016-12-13
+==================
+
+  * Fix: typo that broke the package (#356)
+
+2.4.0 / 2016-12-13
+==================
+
+  * Fix: bower.json references unbuilt src entry point (#342, @justmatt)
+  * Fix: revert "handle regex special characters" (@tootallnate)
+  * Feature: configurable util.inspect()`options for NodeJS (#327, @tootallnate)
+  * Feature: %O`(big O) pretty-prints objects (#322, @tootallnate)
+  * Improvement: allow colors in workers (#335, @botverse)
+  * Improvement: use same color for same namespace. (#338, @lchenay)
+
+2.3.3 / 2016-11-09
+==================
+
+  * Fix: Catch `JSON.stringify()` errors (#195, Jovan Alleyne)
+  * Fix: Returning `localStorage` saved values (#331, Levi Thomason)
+  * Improvement: Don't create an empty object when no `process` (Nathan Rajlich)
+
+2.3.2 / 2016-11-09
+==================
+
+  * Fix: be super-safe in index.js as well (@TooTallNate)
+  * Fix: should check whether process exists (Tom Newby)
+
+2.3.1 / 2016-11-09
+==================
+
+  * Fix: Added electron compatibility (#324, @paulcbetts)
+  * Improvement: Added performance optimizations (@tootallnate)
+  * Readme: Corrected PowerShell environment variable example (#252, @gimre)
+  * Misc: Removed yarn lock file from source control (#321, @fengmk2)
+
+2.3.0 / 2016-11-07
+==================
+
+  * Fix: Consistent placement of ms diff at end of output (#215, @gorangajic)
+  * Fix: Escaping of regex special characters in namespace strings (#250, @zacronos)
+  * Fix: Fixed bug causing crash on react-native (#282, @vkarpov15)
+  * Feature: Enabled ES6+ compatible import via default export (#212 @bucaran)
+  * Feature: Added %O formatter to reflect Chrome's console.log capability (#279, @oncletom)
+  * Package: Update "ms" to 0.7.2 (#315, @DevSide)
+  * Package: removed superfluous version property from bower.json (#207 @kkirsche)
+  * Readme: fix USE_COLORS to DEBUG_COLORS
+  * Readme: Doc fixes for format string sugar (#269, @mlucool)
+  * Readme: Updated docs for DEBUG_FD and DEBUG_COLORS environment variables (#232, @mattlyons0)
+  * Readme: doc fixes for PowerShell (#271 #243, @exoticknight @unreadable)
+  * Readme: better docs for browser support (#224, @matthewmueller)
+  * Tooling: Added yarn integration for development (#317, @thebigredgeek)
+  * Misc: Renamed History.md to CHANGELOG.md (@thebigredgeek)
+  * Misc: Added license file (#226 #274, @CantemoInternal @sdaitzman)
+  * Misc: Updated contributors (@thebigredgeek)
+
+2.2.0 / 2015-05-09
+==================
+
+  * package: update "ms" to v0.7.1 (#202, @dougwilson)
+  * README: add logging to file example (#193, @DanielOchoa)
+  * README: fixed a typo (#191, @amir-s)
+  * browser: expose `storage` (#190, @stephenmathieson)
+  * Makefile: add a `distclean` target (#189, @stephenmathieson)
+
+2.1.3 / 2015-03-13
+==================
+
+  * Updated stdout/stderr example (#186)
+  * Updated example/stdout.js to match debug current behaviour
+  * Renamed example/stderr.js to stdout.js
+  * Update Readme.md (#184)
+  * replace high intensity foreground color for bold (#182, #183)
+
+2.1.2 / 2015-03-01
+==================
+
+  * dist: recompile
+  * update "ms" to v0.7.0
+  * package: update "browserify" to v9.0.3
+  * component: fix "ms.js" repo location
+  * changed bower package name
+  * updated documentation about using debug in a browser
+  * fix: security error on safari (#167, #168, @yields)
+
+2.1.1 / 2014-12-29
+==================
+
+  * browser: use `typeof` to check for `console` existence
+  * browser: check for `console.log` truthiness (fix IE 8/9)
+  * browser: add support for Chrome apps
+  * Readme: added Windows usage remarks
+  * Add `bower.json` to properly support bower install
+
+2.1.0 / 2014-10-15
+==================
+
+  * node: implement `DEBUG_FD` env variable support
+  * package: update "browserify" to v6.1.0
+  * package: add "license" field to package.json (#135, @panuhorsmalahti)
+
+2.0.0 / 2014-09-01
+==================
+
+  * package: update "browserify" to v5.11.0
+  * node: use stderr rather than stdout for logging (#29, @stephenmathieson)
+
+1.0.4 / 2014-07-15
+==================
+
+  * dist: recompile
+  * example: remove `console.info()` log usage
+  * example: add "Content-Type" UTF-8 header to browser example
+  * browser: place %c marker after the space character
+  * browser: reset the "content" color via `color: inherit`
+  * browser: add colors support for Firefox >= v31
+  * debug: prefer an instance `log()` function over the global one (#119)
+  * Readme: update documentation about styled console logs for FF v31 (#116, @wryk)
+
+1.0.3 / 2014-07-09
+==================
+
+  * Add support for multiple wildcards in namespaces (#122, @seegno)
+  * browser: fix lint
+
+1.0.2 / 2014-06-10
+==================
+
+  * browser: update color palette (#113, @gscottolson)
+  * common: make console logging function configurable (#108, @timoxley)
+  * node: fix %o colors on old node <= 0.8.x
+  * Makefile: find node path using shell/which (#109, @timoxley)
+
+1.0.1 / 2014-06-06
+==================
+
+  * browser: use `removeItem()` to clear localStorage
+  * browser, node: don't set DEBUG if namespaces is undefined (#107, @leedm777)
+  * package: add "contributors" section
+  * node: fix comment typo
+  * README: list authors
+
+1.0.0 / 2014-06-04
+==================
+
+  * make ms diff be global, not be scope
+  * debug: ignore empty strings in enable()
+  * node: make DEBUG_COLORS able to disable coloring
+  * *: export the `colors` array
+  * npmignore: don't publish the `dist` dir
+  * Makefile: refactor to use browserify
+  * package: add "browserify" as a dev dependency
+  * Readme: add Web Inspector Colors section
+  * node: reset terminal color for the debug content
+  * node: map "%o" to `util.inspect()`
+  * browser: map "%j" to `JSON.stringify()`
+  * debug: add custom "formatters"
+  * debug: use "ms" module for humanizing the diff
+  * Readme: add "bash" syntax highlighting
+  * browser: add Firebug color support
+  * browser: add colors for WebKit browsers
+  * node: apply log to `console`
+  * rewrite: abstract common logic for Node & browsers
+  * add .jshintrc file
+
+0.8.1 / 2014-04-14
+==================
+
+  * package: re-add the "component" section
+
+0.8.0 / 2014-03-30
+==================
+
+  * add `enable()` method for nodejs. Closes #27
+  * change from stderr to stdout
+  * remove unnecessary index.js file
+
+0.7.4 / 2013-11-13
+==================
+
+  * remove "browserify" key from package.json (fixes something in browserify)
+
+0.7.3 / 2013-10-30
+==================
+
+  * fix: catch localStorage security error when cookies are blocked (Chrome)
+  * add debug(err) support. Closes #46
+  * add .browser prop to package.json. Closes #42
+
+0.7.2 / 2013-02-06
+==================
+
+  * fix package.json
+  * fix: Mobile Safari (private mode) is broken with debug
+  * fix: Use unicode to send escape character to shell instead of octal to work with strict mode javascript
+
+0.7.1 / 2013-02-05
+==================
+
+  * add repository URL to package.json
+  * add DEBUG_COLORED to force colored output
+  * add browserify support
+  * fix component. Closes #24
+
+0.7.0 / 2012-05-04
+==================
+
+  * Added .component to package.json
+  * Added debug.component.js build
+
+0.6.0 / 2012-03-16
+==================
+
+  * Added support for "-" prefix in DEBUG [Vinay Pulim]
+  * Added `.enabled` flag to the node version [TooTallNate]
+
+0.5.0 / 2012-02-02
+==================
+
+  * Added: humanize diffs. Closes #8
+  * Added `debug.disable()` to the CS variant
+  * Removed padding. Closes #10
+  * Fixed: persist client-side variant again. Closes #9
+
+0.4.0 / 2012-02-01
+==================
+
+  * Added browser variant support for older browsers [TooTallNate]
+  * Added `debug.enable('project:*')` to browser variant [TooTallNate]
+  * Added padding to diff (moved it to the right)
+
+0.3.0 / 2012-01-26
+==================
+
+  * Added millisecond diff when isatty, otherwise UTC string
+
+0.2.0 / 2012-01-22
+==================
+
+  * Added wildcard support
+
+0.1.0 / 2011-12-02
+==================
+
+  * Added: remove colors unless stderr isatty [TooTallNate]
+
+0.0.1 / 2010-01-03
+==================
+
+  * Initial release
diff --git a/helloworld/node_modules/localtunnel/node_modules/debug/LICENSE b/helloworld/node_modules/localtunnel/node_modules/debug/LICENSE
new file mode 100755
index 0000000..658c933
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/node_modules/debug/LICENSE
@@ -0,0 +1,19 @@
+(The MIT License)
+
+Copyright (c) 2014 TJ Holowaychuk <tj@vision-media.ca>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
+and associated documentation files (the 'Software'), to deal in the Software without restriction, 
+including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial 
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT 
+LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/helloworld/node_modules/localtunnel/node_modules/debug/Makefile b/helloworld/node_modules/localtunnel/node_modules/debug/Makefile
new file mode 100755
index 0000000..584da8b
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/node_modules/debug/Makefile
@@ -0,0 +1,50 @@
+# get Makefile directory name: http://stackoverflow.com/a/5982798/376773
+THIS_MAKEFILE_PATH:=$(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST))
+THIS_DIR:=$(shell cd $(dir $(THIS_MAKEFILE_PATH));pwd)
+
+# BIN directory
+BIN := $(THIS_DIR)/node_modules/.bin
+
+# Path
+PATH := node_modules/.bin:$(PATH)
+SHELL := /bin/bash
+
+# applications
+NODE ?= $(shell which node)
+YARN ?= $(shell which yarn)
+PKG ?= $(if $(YARN),$(YARN),$(NODE) $(shell which npm))
+BROWSERIFY ?= $(NODE) $(BIN)/browserify
+
+.FORCE:
+
+install: node_modules
+
+node_modules: package.json
+	@NODE_ENV= $(PKG) install
+	@touch node_modules
+
+lint: .FORCE
+	eslint browser.js debug.js index.js node.js
+
+test-node: .FORCE
+	istanbul cover node_modules/mocha/bin/_mocha -- test/**.js
+
+test-browser: .FORCE
+	mkdir -p dist
+
+	@$(BROWSERIFY) \
+		--standalone debug \
+		. > dist/debug.js
+
+	karma start --single-run
+	rimraf dist
+
+test: .FORCE
+	concurrently \
+		"make test-node" \
+		"make test-browser"
+
+coveralls:
+	cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js
+
+.PHONY: all install clean distclean
diff --git a/helloworld/node_modules/localtunnel/node_modules/debug/README.md b/helloworld/node_modules/localtunnel/node_modules/debug/README.md
new file mode 100755
index 0000000..f67be6b
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/node_modules/debug/README.md
@@ -0,0 +1,312 @@
+# debug
+[![Build Status](https://travis-ci.org/visionmedia/debug.svg?branch=master)](https://travis-ci.org/visionmedia/debug)  [![Coverage Status](https://coveralls.io/repos/github/visionmedia/debug/badge.svg?branch=master)](https://coveralls.io/github/visionmedia/debug?branch=master)  [![Slack](https://visionmedia-community-slackin.now.sh/badge.svg)](https://visionmedia-community-slackin.now.sh/) [![OpenCollective](https://opencollective.com/debug/backers/badge.svg)](#backers) 
+[![OpenCollective](https://opencollective.com/debug/sponsors/badge.svg)](#sponsors)
+
+
+
+A tiny node.js debugging utility modelled after node core's debugging technique.
+
+**Discussion around the V3 API is under way [here](https://github.com/visionmedia/debug/issues/370)**
+
+## Installation
+
+```bash
+$ npm install debug
+```
+
+## Usage
+
+`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole.
+
+Example _app.js_:
+
+```js
+var debug = require('debug')('http')
+  , http = require('http')
+  , name = 'My App';
+
+// fake app
+
+debug('booting %s', name);
+
+http.createServer(function(req, res){
+  debug(req.method + ' ' + req.url);
+  res.end('hello\n');
+}).listen(3000, function(){
+  debug('listening');
+});
+
+// fake worker of some kind
+
+require('./worker');
+```
+
+Example _worker.js_:
+
+```js
+var debug = require('debug')('worker');
+
+setInterval(function(){
+  debug('doing some work');
+}, 1000);
+```
+
+ The __DEBUG__ environment variable is then used to enable these based on space or comma-delimited names. Here are some examples:
+
+  ![debug http and worker](http://f.cl.ly/items/18471z1H402O24072r1J/Screenshot.png)
+
+  ![debug worker](http://f.cl.ly/items/1X413v1a3M0d3C2c1E0i/Screenshot.png)
+
+#### Windows note
+
+ On Windows the environment variable is set using the `set` command.
+
+ ```cmd
+ set DEBUG=*,-not_this
+ ```
+
+ Note that PowerShell uses different syntax to set environment variables.
+
+ ```cmd
+ $env:DEBUG = "*,-not_this"
+  ```
+
+Then, run the program to be debugged as usual.
+
+## Millisecond diff
+
+  When actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the "+NNNms" will show you how much time was spent between calls.
+
+  ![](http://f.cl.ly/items/2i3h1d3t121M2Z1A3Q0N/Screenshot.png)
+
+  When stdout is not a TTY, `Date#toUTCString()` is used, making it more useful for logging the debug information as shown below:
+
+  ![](http://f.cl.ly/items/112H3i0e0o0P0a2Q2r11/Screenshot.png)
+
+## Conventions
+
+  If you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use ":" to separate features. For example "bodyParser" from Connect would then be "connect:bodyParser".
+
+## Wildcards
+
+  The `*` character may be used as a wildcard. Suppose for example your library has debuggers named "connect:bodyParser", "connect:compress", "connect:session", instead of listing all three with `DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do `DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`.
+
+  You can also exclude specific debuggers by prefixing them with a "-" character.  For example, `DEBUG=*,-connect:*` would include all debuggers except those starting with "connect:".
+
+## Environment Variables
+
+  When running through Node.js, you can set a few environment variables that will
+  change the behavior of the debug logging:
+
+| Name      | Purpose                                         |
+|-----------|-------------------------------------------------|
+| `DEBUG`   | Enables/disables specific debugging namespaces. |
+| `DEBUG_COLORS`| Whether or not to use colors in the debug output. |
+| `DEBUG_DEPTH` | Object inspection depth. |
+| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. |
+
+
+  __Note:__ The environment variables beginning with `DEBUG_` end up being
+  converted into an Options object that gets used with `%o`/`%O` formatters.
+  See the Node.js documentation for
+  [`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options)
+  for the complete list.
+
+## Formatters
+
+
+  Debug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting. Below are the officially supported formatters:
+
+| Formatter | Representation |
+|-----------|----------------|
+| `%O`      | Pretty-print an Object on multiple lines. |
+| `%o`      | Pretty-print an Object all on a single line. |
+| `%s`      | String. |
+| `%d`      | Number (both integer and float). |
+| `%j`      | JSON. Replaced with the string '[Circular]' if the argument contains circular references. |
+| `%%`      | Single percent sign ('%'). This does not consume an argument. |
+
+### Custom formatters
+
+  You can add custom formatters by extending the `debug.formatters` object. For example, if you wanted to add support for rendering a Buffer as hex with `%h`, you could do something like:
+
+```js
+const createDebug = require('debug')
+createDebug.formatters.h = (v) => {
+  return v.toString('hex')
+}
+
+// …elsewhere
+const debug = createDebug('foo')
+debug('this is hex: %h', new Buffer('hello world'))
+//   foo this is hex: 68656c6c6f20776f726c6421 +0ms
+```
+
+## Browser support
+  You can build a browser-ready script using [browserify](https://github.com/substack/node-browserify),
+  or just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest),
+  if you don't want to build it yourself.
+
+  Debug's enable state is currently persisted by `localStorage`.
+  Consider the situation shown below where you have `worker:a` and `worker:b`,
+  and wish to debug both. You can enable this using `localStorage.debug`:
+
+```js
+localStorage.debug = 'worker:*'
+```
+
+And then refresh the page.
+
+```js
+a = debug('worker:a');
+b = debug('worker:b');
+
+setInterval(function(){
+  a('doing some work');
+}, 1000);
+
+setInterval(function(){
+  b('doing some work');
+}, 1200);
+```
+
+#### Web Inspector Colors
+
+  Colors are also enabled on "Web Inspectors" that understand the `%c` formatting
+  option. These are WebKit web inspectors, Firefox ([since version
+  31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/))
+  and the Firebug plugin for Firefox (any version).
+
+  Colored output looks something like:
+
+  ![](https://cloud.githubusercontent.com/assets/71256/3139768/b98c5fd8-e8ef-11e3-862a-f7253b6f47c6.png)
+
+
+## Output streams
+
+  By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method:
+
+Example _stdout.js_:
+
+```js
+var debug = require('debug');
+var error = debug('app:error');
+
+// by default stderr is used
+error('goes to stderr!');
+
+var log = debug('app:log');
+// set this namespace to log via console.log
+log.log = console.log.bind(console); // don't forget to bind to console!
+log('goes to stdout');
+error('still goes to stderr!');
+
+// set all output to go via console.info
+// overrides all per-namespace log settings
+debug.log = console.info.bind(console);
+error('now goes to stdout via console.info');
+log('still goes to stdout, but via console.info now');
+```
+
+
+## Authors
+
+ - TJ Holowaychuk
+ - Nathan Rajlich
+ - Andrew Rhyne
+ 
+## Backers
+
+Support us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/debug#backer)]
+
+<a href="https://opencollective.com/debug/backer/0/website" target="_blank"><img src="https://opencollective.com/debug/backer/0/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/1/website" target="_blank"><img src="https://opencollective.com/debug/backer/1/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/2/website" target="_blank"><img src="https://opencollective.com/debug/backer/2/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/3/website" target="_blank"><img src="https://opencollective.com/debug/backer/3/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/4/website" target="_blank"><img src="https://opencollective.com/debug/backer/4/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/5/website" target="_blank"><img src="https://opencollective.com/debug/backer/5/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/6/website" target="_blank"><img src="https://opencollective.com/debug/backer/6/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/7/website" target="_blank"><img src="https://opencollective.com/debug/backer/7/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/8/website" target="_blank"><img src="https://opencollective.com/debug/backer/8/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/9/website" target="_blank"><img src="https://opencollective.com/debug/backer/9/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/10/website" target="_blank"><img src="https://opencollective.com/debug/backer/10/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/11/website" target="_blank"><img src="https://opencollective.com/debug/backer/11/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/12/website" target="_blank"><img src="https://opencollective.com/debug/backer/12/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/13/website" target="_blank"><img src="https://opencollective.com/debug/backer/13/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/14/website" target="_blank"><img src="https://opencollective.com/debug/backer/14/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/15/website" target="_blank"><img src="https://opencollective.com/debug/backer/15/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/16/website" target="_blank"><img src="https://opencollective.com/debug/backer/16/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/17/website" target="_blank"><img src="https://opencollective.com/debug/backer/17/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/18/website" target="_blank"><img src="https://opencollective.com/debug/backer/18/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/19/website" target="_blank"><img src="https://opencollective.com/debug/backer/19/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/20/website" target="_blank"><img src="https://opencollective.com/debug/backer/20/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/21/website" target="_blank"><img src="https://opencollective.com/debug/backer/21/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/22/website" target="_blank"><img src="https://opencollective.com/debug/backer/22/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/23/website" target="_blank"><img src="https://opencollective.com/debug/backer/23/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/24/website" target="_blank"><img src="https://opencollective.com/debug/backer/24/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/25/website" target="_blank"><img src="https://opencollective.com/debug/backer/25/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/26/website" target="_blank"><img src="https://opencollective.com/debug/backer/26/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/27/website" target="_blank"><img src="https://opencollective.com/debug/backer/27/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/28/website" target="_blank"><img src="https://opencollective.com/debug/backer/28/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/29/website" target="_blank"><img src="https://opencollective.com/debug/backer/29/avatar.svg"></a>
+
+
+## Sponsors
+
+Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/debug#sponsor)]
+
+<a href="https://opencollective.com/debug/sponsor/0/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/1/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/1/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/2/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/2/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/3/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/3/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/4/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/4/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/5/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/5/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/6/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/6/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/7/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/7/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/8/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/8/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/9/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/9/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/10/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/10/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/11/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/11/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/12/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/12/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/13/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/13/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/14/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/14/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/15/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/15/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/16/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/16/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/17/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/17/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/18/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/18/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/19/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/19/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/20/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/20/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/21/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/21/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/22/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/22/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/23/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/23/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/24/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/24/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/25/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/25/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/26/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/26/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/27/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/27/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/28/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/28/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/29/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/29/avatar.svg"></a>
+
+## License
+
+(The MIT License)
+
+Copyright (c) 2014-2016 TJ Holowaychuk &lt;tj@vision-media.ca&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/localtunnel/node_modules/debug/component.json b/helloworld/node_modules/localtunnel/node_modules/debug/component.json
new file mode 100755
index 0000000..9de2641
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/node_modules/debug/component.json
@@ -0,0 +1,19 @@
+{
+  "name": "debug",
+  "repo": "visionmedia/debug",
+  "description": "small debugging utility",
+  "version": "2.6.9",
+  "keywords": [
+    "debug",
+    "log",
+    "debugger"
+  ],
+  "main": "src/browser.js",
+  "scripts": [
+    "src/browser.js",
+    "src/debug.js"
+  ],
+  "dependencies": {
+    "rauchg/ms.js": "0.7.1"
+  }
+}
diff --git a/helloworld/node_modules/localtunnel/node_modules/debug/karma.conf.js b/helloworld/node_modules/localtunnel/node_modules/debug/karma.conf.js
new file mode 100755
index 0000000..103a82d
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/node_modules/debug/karma.conf.js
@@ -0,0 +1,70 @@
+// Karma configuration
+// Generated on Fri Dec 16 2016 13:09:51 GMT+0000 (UTC)
+
+module.exports = function(config) {
+  config.set({
+
+    // base path that will be used to resolve all patterns (eg. files, exclude)
+    basePath: '',
+
+
+    // frameworks to use
+    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
+    frameworks: ['mocha', 'chai', 'sinon'],
+
+
+    // list of files / patterns to load in the browser
+    files: [
+      'dist/debug.js',
+      'test/*spec.js'
+    ],
+
+
+    // list of files to exclude
+    exclude: [
+      'src/node.js'
+    ],
+
+
+    // preprocess matching files before serving them to the browser
+    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
+    preprocessors: {
+    },
+
+    // test results reporter to use
+    // possible values: 'dots', 'progress'
+    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
+    reporters: ['progress'],
+
+
+    // web server port
+    port: 9876,
+
+
+    // enable / disable colors in the output (reporters and logs)
+    colors: true,
+
+
+    // level of logging
+    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
+    logLevel: config.LOG_INFO,
+
+
+    // enable / disable watching file and executing tests whenever any file changes
+    autoWatch: true,
+
+
+    // start these browsers
+    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
+    browsers: ['PhantomJS'],
+
+
+    // Continuous Integration mode
+    // if true, Karma captures browsers, runs the tests and exits
+    singleRun: false,
+
+    // Concurrency level
+    // how many browser should be started simultaneous
+    concurrency: Infinity
+  })
+}
diff --git a/helloworld/node_modules/localtunnel/node_modules/debug/node.js b/helloworld/node_modules/localtunnel/node_modules/debug/node.js
new file mode 100755
index 0000000..7fc36fe
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/node_modules/debug/node.js
@@ -0,0 +1 @@
+module.exports = require('./src/node');
diff --git a/helloworld/node_modules/localtunnel/node_modules/debug/package.json b/helloworld/node_modules/localtunnel/node_modules/debug/package.json
new file mode 100755
index 0000000..1c7c0af
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/node_modules/debug/package.json
@@ -0,0 +1,88 @@
+{
+  "_from": "debug@2.6.9",
+  "_id": "debug@2.6.9",
+  "_inBundle": false,
+  "_integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+  "_location": "/localtunnel/debug",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "debug@2.6.9",
+    "name": "debug",
+    "escapedName": "debug",
+    "rawSpec": "2.6.9",
+    "saveSpec": null,
+    "fetchSpec": "2.6.9"
+  },
+  "_requiredBy": [
+    "/localtunnel"
+  ],
+  "_resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+  "_shasum": "5d128515df134ff327e90a4c93f4e077a536341f",
+  "_spec": "debug@2.6.9",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/localtunnel",
+  "author": {
+    "name": "TJ Holowaychuk",
+    "email": "tj@vision-media.ca"
+  },
+  "browser": "./src/browser.js",
+  "bugs": {
+    "url": "https://github.com/visionmedia/debug/issues"
+  },
+  "bundleDependencies": false,
+  "component": {
+    "scripts": {
+      "debug/index.js": "browser.js",
+      "debug/debug.js": "debug.js"
+    }
+  },
+  "contributors": [
+    {
+      "name": "Nathan Rajlich",
+      "email": "nathan@tootallnate.net",
+      "url": "http://n8.io"
+    },
+    {
+      "name": "Andrew Rhyne",
+      "email": "rhyneandrew@gmail.com"
+    }
+  ],
+  "dependencies": {
+    "ms": "2.0.0"
+  },
+  "deprecated": false,
+  "description": "small debugging utility",
+  "devDependencies": {
+    "browserify": "9.0.3",
+    "chai": "^3.5.0",
+    "concurrently": "^3.1.0",
+    "coveralls": "^2.11.15",
+    "eslint": "^3.12.1",
+    "istanbul": "^0.4.5",
+    "karma": "^1.3.0",
+    "karma-chai": "^0.1.0",
+    "karma-mocha": "^1.3.0",
+    "karma-phantomjs-launcher": "^1.0.2",
+    "karma-sinon": "^1.0.5",
+    "mocha": "^3.2.0",
+    "mocha-lcov-reporter": "^1.2.0",
+    "rimraf": "^2.5.4",
+    "sinon": "^1.17.6",
+    "sinon-chai": "^2.8.0"
+  },
+  "homepage": "https://github.com/visionmedia/debug#readme",
+  "keywords": [
+    "debug",
+    "log",
+    "debugger"
+  ],
+  "license": "MIT",
+  "main": "./src/index.js",
+  "name": "debug",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/visionmedia/debug.git"
+  },
+  "version": "2.6.9"
+}
diff --git a/helloworld/node_modules/localtunnel/node_modules/debug/src/browser.js b/helloworld/node_modules/localtunnel/node_modules/debug/src/browser.js
new file mode 100755
index 0000000..7106924
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/node_modules/debug/src/browser.js
@@ -0,0 +1,185 @@
+/**
+ * This is the web browser implementation of `debug()`.
+ *
+ * Expose `debug()` as the module.
+ */
+
+exports = module.exports = require('./debug');
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+exports.storage = 'undefined' != typeof chrome
+               && 'undefined' != typeof chrome.storage
+                  ? chrome.storage.local
+                  : localstorage();
+
+/**
+ * Colors.
+ */
+
+exports.colors = [
+  'lightseagreen',
+  'forestgreen',
+  'goldenrod',
+  'dodgerblue',
+  'darkorchid',
+  'crimson'
+];
+
+/**
+ * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+ * and the Firebug extension (any Firefox version) are known
+ * to support "%c" CSS customizations.
+ *
+ * TODO: add a `localStorage` variable to explicitly enable/disable colors
+ */
+
+function useColors() {
+  // NB: In an Electron preload script, document will be defined but not fully
+  // initialized. Since we know we're in Chrome, we'll just detect this case
+  // explicitly
+  if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {
+    return true;
+  }
+
+  // is webkit? http://stackoverflow.com/a/16459606/376773
+  // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+  return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
+    // is firebug? http://stackoverflow.com/a/398120/376773
+    (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
+    // is firefox >= v31?
+    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
+    // double check webkit in userAgent just in case we are in a worker
+    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
+}
+
+/**
+ * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+ */
+
+exports.formatters.j = function(v) {
+  try {
+    return JSON.stringify(v);
+  } catch (err) {
+    return '[UnexpectedJSONParseError]: ' + err.message;
+  }
+};
+
+
+/**
+ * Colorize log arguments if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+  var useColors = this.useColors;
+
+  args[0] = (useColors ? '%c' : '')
+    + this.namespace
+    + (useColors ? ' %c' : ' ')
+    + args[0]
+    + (useColors ? '%c ' : ' ')
+    + '+' + exports.humanize(this.diff);
+
+  if (!useColors) return;
+
+  var c = 'color: ' + this.color;
+  args.splice(1, 0, c, 'color: inherit')
+
+  // the final "%c" is somewhat tricky, because there could be other
+  // arguments passed either before or after the %c, so we need to
+  // figure out the correct index to insert the CSS into
+  var index = 0;
+  var lastC = 0;
+  args[0].replace(/%[a-zA-Z%]/g, function(match) {
+    if ('%%' === match) return;
+    index++;
+    if ('%c' === match) {
+      // we only are interested in the *last* %c
+      // (the user may have provided their own)
+      lastC = index;
+    }
+  });
+
+  args.splice(lastC, 0, c);
+}
+
+/**
+ * Invokes `console.log()` when available.
+ * No-op when `console.log` is not a "function".
+ *
+ * @api public
+ */
+
+function log() {
+  // this hackery is required for IE8/9, where
+  // the `console.log` function doesn't have 'apply'
+  return 'object' === typeof console
+    && console.log
+    && Function.prototype.apply.call(console.log, console, arguments);
+}
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+
+function save(namespaces) {
+  try {
+    if (null == namespaces) {
+      exports.storage.removeItem('debug');
+    } else {
+      exports.storage.debug = namespaces;
+    }
+  } catch(e) {}
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+
+function load() {
+  var r;
+  try {
+    r = exports.storage.debug;
+  } catch(e) {}
+
+  // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
+  if (!r && typeof process !== 'undefined' && 'env' in process) {
+    r = process.env.DEBUG;
+  }
+
+  return r;
+}
+
+/**
+ * Enable namespaces listed in `localStorage.debug` initially.
+ */
+
+exports.enable(load());
+
+/**
+ * Localstorage attempts to return the localstorage.
+ *
+ * This is necessary because safari throws
+ * when a user disables cookies/localstorage
+ * and you attempt to access it.
+ *
+ * @return {LocalStorage}
+ * @api private
+ */
+
+function localstorage() {
+  try {
+    return window.localStorage;
+  } catch (e) {}
+}
diff --git a/helloworld/node_modules/localtunnel/node_modules/debug/src/debug.js b/helloworld/node_modules/localtunnel/node_modules/debug/src/debug.js
new file mode 100755
index 0000000..6a5e3fc
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/node_modules/debug/src/debug.js
@@ -0,0 +1,202 @@
+
+/**
+ * This is the common logic for both the Node.js and web browser
+ * implementations of `debug()`.
+ *
+ * Expose `debug()` as the module.
+ */
+
+exports = module.exports = createDebug.debug = createDebug['default'] = createDebug;
+exports.coerce = coerce;
+exports.disable = disable;
+exports.enable = enable;
+exports.enabled = enabled;
+exports.humanize = require('ms');
+
+/**
+ * The currently active debug mode names, and names to skip.
+ */
+
+exports.names = [];
+exports.skips = [];
+
+/**
+ * Map of special "%n" handling functions, for the debug "format" argument.
+ *
+ * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
+ */
+
+exports.formatters = {};
+
+/**
+ * Previous log timestamp.
+ */
+
+var prevTime;
+
+/**
+ * Select a color.
+ * @param {String} namespace
+ * @return {Number}
+ * @api private
+ */
+
+function selectColor(namespace) {
+  var hash = 0, i;
+
+  for (i in namespace) {
+    hash  = ((hash << 5) - hash) + namespace.charCodeAt(i);
+    hash |= 0; // Convert to 32bit integer
+  }
+
+  return exports.colors[Math.abs(hash) % exports.colors.length];
+}
+
+/**
+ * Create a debugger with the given `namespace`.
+ *
+ * @param {String} namespace
+ * @return {Function}
+ * @api public
+ */
+
+function createDebug(namespace) {
+
+  function debug() {
+    // disabled?
+    if (!debug.enabled) return;
+
+    var self = debug;
+
+    // set `diff` timestamp
+    var curr = +new Date();
+    var ms = curr - (prevTime || curr);
+    self.diff = ms;
+    self.prev = prevTime;
+    self.curr = curr;
+    prevTime = curr;
+
+    // turn the `arguments` into a proper Array
+    var args = new Array(arguments.length);
+    for (var i = 0; i < args.length; i++) {
+      args[i] = arguments[i];
+    }
+
+    args[0] = exports.coerce(args[0]);
+
+    if ('string' !== typeof args[0]) {
+      // anything else let's inspect with %O
+      args.unshift('%O');
+    }
+
+    // apply any `formatters` transformations
+    var index = 0;
+    args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {
+      // if we encounter an escaped % then don't increase the array index
+      if (match === '%%') return match;
+      index++;
+      var formatter = exports.formatters[format];
+      if ('function' === typeof formatter) {
+        var val = args[index];
+        match = formatter.call(self, val);
+
+        // now we need to remove `args[index]` since it's inlined in the `format`
+        args.splice(index, 1);
+        index--;
+      }
+      return match;
+    });
+
+    // apply env-specific formatting (colors, etc.)
+    exports.formatArgs.call(self, args);
+
+    var logFn = debug.log || exports.log || console.log.bind(console);
+    logFn.apply(self, args);
+  }
+
+  debug.namespace = namespace;
+  debug.enabled = exports.enabled(namespace);
+  debug.useColors = exports.useColors();
+  debug.color = selectColor(namespace);
+
+  // env-specific initialization logic for debug instances
+  if ('function' === typeof exports.init) {
+    exports.init(debug);
+  }
+
+  return debug;
+}
+
+/**
+ * Enables a debug mode by namespaces. This can include modes
+ * separated by a colon and wildcards.
+ *
+ * @param {String} namespaces
+ * @api public
+ */
+
+function enable(namespaces) {
+  exports.save(namespaces);
+
+  exports.names = [];
+  exports.skips = [];
+
+  var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
+  var len = split.length;
+
+  for (var i = 0; i < len; i++) {
+    if (!split[i]) continue; // ignore empty strings
+    namespaces = split[i].replace(/\*/g, '.*?');
+    if (namespaces[0] === '-') {
+      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
+    } else {
+      exports.names.push(new RegExp('^' + namespaces + '$'));
+    }
+  }
+}
+
+/**
+ * Disable debug output.
+ *
+ * @api public
+ */
+
+function disable() {
+  exports.enable('');
+}
+
+/**
+ * Returns true if the given mode name is enabled, false otherwise.
+ *
+ * @param {String} name
+ * @return {Boolean}
+ * @api public
+ */
+
+function enabled(name) {
+  var i, len;
+  for (i = 0, len = exports.skips.length; i < len; i++) {
+    if (exports.skips[i].test(name)) {
+      return false;
+    }
+  }
+  for (i = 0, len = exports.names.length; i < len; i++) {
+    if (exports.names[i].test(name)) {
+      return true;
+    }
+  }
+  return false;
+}
+
+/**
+ * Coerce `val`.
+ *
+ * @param {Mixed} val
+ * @return {Mixed}
+ * @api private
+ */
+
+function coerce(val) {
+  if (val instanceof Error) return val.stack || val.message;
+  return val;
+}
diff --git a/helloworld/node_modules/localtunnel/node_modules/debug/src/index.js b/helloworld/node_modules/localtunnel/node_modules/debug/src/index.js
new file mode 100755
index 0000000..e12cf4d
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/node_modules/debug/src/index.js
@@ -0,0 +1,10 @@
+/**
+ * Detect Electron renderer process, which is node, but we should
+ * treat as a browser.
+ */
+
+if (typeof process !== 'undefined' && process.type === 'renderer') {
+  module.exports = require('./browser.js');
+} else {
+  module.exports = require('./node.js');
+}
diff --git a/helloworld/node_modules/localtunnel/node_modules/debug/src/inspector-log.js b/helloworld/node_modules/localtunnel/node_modules/debug/src/inspector-log.js
new file mode 100755
index 0000000..60ea6c0
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/node_modules/debug/src/inspector-log.js
@@ -0,0 +1,15 @@
+module.exports = inspectorLog;
+
+// black hole
+const nullStream = new (require('stream').Writable)();
+nullStream._write = () => {};
+
+/**
+ * Outputs a `console.log()` to the Node.js Inspector console *only*.
+ */
+function inspectorLog() {
+  const stdout = console._stdout;
+  console._stdout = nullStream;
+  console.log.apply(console, arguments);
+  console._stdout = stdout;
+}
diff --git a/helloworld/node_modules/localtunnel/node_modules/debug/src/node.js b/helloworld/node_modules/localtunnel/node_modules/debug/src/node.js
new file mode 100755
index 0000000..b15109c
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/node_modules/debug/src/node.js
@@ -0,0 +1,248 @@
+/**
+ * Module dependencies.
+ */
+
+var tty = require('tty');
+var util = require('util');
+
+/**
+ * This is the Node.js implementation of `debug()`.
+ *
+ * Expose `debug()` as the module.
+ */
+
+exports = module.exports = require('./debug');
+exports.init = init;
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+
+/**
+ * Colors.
+ */
+
+exports.colors = [6, 2, 3, 4, 5, 1];
+
+/**
+ * Build up the default `inspectOpts` object from the environment variables.
+ *
+ *   $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
+ */
+
+exports.inspectOpts = Object.keys(process.env).filter(function (key) {
+  return /^debug_/i.test(key);
+}).reduce(function (obj, key) {
+  // camel-case
+  var prop = key
+    .substring(6)
+    .toLowerCase()
+    .replace(/_([a-z])/g, function (_, k) { return k.toUpperCase() });
+
+  // coerce string value into JS value
+  var val = process.env[key];
+  if (/^(yes|on|true|enabled)$/i.test(val)) val = true;
+  else if (/^(no|off|false|disabled)$/i.test(val)) val = false;
+  else if (val === 'null') val = null;
+  else val = Number(val);
+
+  obj[prop] = val;
+  return obj;
+}, {});
+
+/**
+ * The file descriptor to write the `debug()` calls to.
+ * Set the `DEBUG_FD` env variable to override with another value. i.e.:
+ *
+ *   $ DEBUG_FD=3 node script.js 3>debug.log
+ */
+
+var fd = parseInt(process.env.DEBUG_FD, 10) || 2;
+
+if (1 !== fd && 2 !== fd) {
+  util.deprecate(function(){}, 'except for stderr(2) and stdout(1), any other usage of DEBUG_FD is deprecated. Override debug.log if you want to use a different log function (https://git.io/debug_fd)')()
+}
+
+var stream = 1 === fd ? process.stdout :
+             2 === fd ? process.stderr :
+             createWritableStdioStream(fd);
+
+/**
+ * Is stdout a TTY? Colored output is enabled when `true`.
+ */
+
+function useColors() {
+  return 'colors' in exports.inspectOpts
+    ? Boolean(exports.inspectOpts.colors)
+    : tty.isatty(fd);
+}
+
+/**
+ * Map %o to `util.inspect()`, all on a single line.
+ */
+
+exports.formatters.o = function(v) {
+  this.inspectOpts.colors = this.useColors;
+  return util.inspect(v, this.inspectOpts)
+    .split('\n').map(function(str) {
+      return str.trim()
+    }).join(' ');
+};
+
+/**
+ * Map %o to `util.inspect()`, allowing multiple lines if needed.
+ */
+
+exports.formatters.O = function(v) {
+  this.inspectOpts.colors = this.useColors;
+  return util.inspect(v, this.inspectOpts);
+};
+
+/**
+ * Adds ANSI color escape codes if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+  var name = this.namespace;
+  var useColors = this.useColors;
+
+  if (useColors) {
+    var c = this.color;
+    var prefix = '  \u001b[3' + c + ';1m' + name + ' ' + '\u001b[0m';
+
+    args[0] = prefix + args[0].split('\n').join('\n' + prefix);
+    args.push('\u001b[3' + c + 'm+' + exports.humanize(this.diff) + '\u001b[0m');
+  } else {
+    args[0] = new Date().toUTCString()
+      + ' ' + name + ' ' + args[0];
+  }
+}
+
+/**
+ * Invokes `util.format()` with the specified arguments and writes to `stream`.
+ */
+
+function log() {
+  return stream.write(util.format.apply(util, arguments) + '\n');
+}
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+
+function save(namespaces) {
+  if (null == namespaces) {
+    // If you set a process.env field to null or undefined, it gets cast to the
+    // string 'null' or 'undefined'. Just delete instead.
+    delete process.env.DEBUG;
+  } else {
+    process.env.DEBUG = namespaces;
+  }
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+
+function load() {
+  return process.env.DEBUG;
+}
+
+/**
+ * Copied from `node/src/node.js`.
+ *
+ * XXX: It's lame that node doesn't expose this API out-of-the-box. It also
+ * relies on the undocumented `tty_wrap.guessHandleType()` which is also lame.
+ */
+
+function createWritableStdioStream (fd) {
+  var stream;
+  var tty_wrap = process.binding('tty_wrap');
+
+  // Note stream._type is used for test-module-load-list.js
+
+  switch (tty_wrap.guessHandleType(fd)) {
+    case 'TTY':
+      stream = new tty.WriteStream(fd);
+      stream._type = 'tty';
+
+      // Hack to have stream not keep the event loop alive.
+      // See https://github.com/joyent/node/issues/1726
+      if (stream._handle && stream._handle.unref) {
+        stream._handle.unref();
+      }
+      break;
+
+    case 'FILE':
+      var fs = require('fs');
+      stream = new fs.SyncWriteStream(fd, { autoClose: false });
+      stream._type = 'fs';
+      break;
+
+    case 'PIPE':
+    case 'TCP':
+      var net = require('net');
+      stream = new net.Socket({
+        fd: fd,
+        readable: false,
+        writable: true
+      });
+
+      // FIXME Should probably have an option in net.Socket to create a
+      // stream from an existing fd which is writable only. But for now
+      // we'll just add this hack and set the `readable` member to false.
+      // Test: ./node test/fixtures/echo.js < /etc/passwd
+      stream.readable = false;
+      stream.read = null;
+      stream._type = 'pipe';
+
+      // FIXME Hack to have stream not keep the event loop alive.
+      // See https://github.com/joyent/node/issues/1726
+      if (stream._handle && stream._handle.unref) {
+        stream._handle.unref();
+      }
+      break;
+
+    default:
+      // Probably an error on in uv_guess_handle()
+      throw new Error('Implement me. Unknown stream file type!');
+  }
+
+  // For supporting legacy API we put the FD here.
+  stream.fd = fd;
+
+  stream._isStdio = true;
+
+  return stream;
+}
+
+/**
+ * Init logic for `debug` instances.
+ *
+ * Create a new `inspectOpts` object in case `useColors` is set
+ * differently for a particular `debug` instance.
+ */
+
+function init (debug) {
+  debug.inspectOpts = {};
+
+  var keys = Object.keys(exports.inspectOpts);
+  for (var i = 0; i < keys.length; i++) {
+    debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
+  }
+}
+
+/**
+ * Enable namespaces listed in `process.env.DEBUG` initially.
+ */
+
+exports.enable(load());
diff --git a/helloworld/node_modules/localtunnel/node_modules/ms/index.js b/helloworld/node_modules/localtunnel/node_modules/ms/index.js
new file mode 100755
index 0000000..6a522b1
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/node_modules/ms/index.js
@@ -0,0 +1,152 @@
+/**
+ * Helpers.
+ */
+
+var s = 1000;
+var m = s * 60;
+var h = m * 60;
+var d = h * 24;
+var y = d * 365.25;
+
+/**
+ * Parse or format the given `val`.
+ *
+ * Options:
+ *
+ *  - `long` verbose formatting [false]
+ *
+ * @param {String|Number} val
+ * @param {Object} [options]
+ * @throws {Error} throw an error if val is not a non-empty string or a number
+ * @return {String|Number}
+ * @api public
+ */
+
+module.exports = function(val, options) {
+  options = options || {};
+  var type = typeof val;
+  if (type === 'string' && val.length > 0) {
+    return parse(val);
+  } else if (type === 'number' && isNaN(val) === false) {
+    return options.long ? fmtLong(val) : fmtShort(val);
+  }
+  throw new Error(
+    'val is not a non-empty string or a valid number. val=' +
+      JSON.stringify(val)
+  );
+};
+
+/**
+ * Parse the given `str` and return milliseconds.
+ *
+ * @param {String} str
+ * @return {Number}
+ * @api private
+ */
+
+function parse(str) {
+  str = String(str);
+  if (str.length > 100) {
+    return;
+  }
+  var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(
+    str
+  );
+  if (!match) {
+    return;
+  }
+  var n = parseFloat(match[1]);
+  var type = (match[2] || 'ms').toLowerCase();
+  switch (type) {
+    case 'years':
+    case 'year':
+    case 'yrs':
+    case 'yr':
+    case 'y':
+      return n * y;
+    case 'days':
+    case 'day':
+    case 'd':
+      return n * d;
+    case 'hours':
+    case 'hour':
+    case 'hrs':
+    case 'hr':
+    case 'h':
+      return n * h;
+    case 'minutes':
+    case 'minute':
+    case 'mins':
+    case 'min':
+    case 'm':
+      return n * m;
+    case 'seconds':
+    case 'second':
+    case 'secs':
+    case 'sec':
+    case 's':
+      return n * s;
+    case 'milliseconds':
+    case 'millisecond':
+    case 'msecs':
+    case 'msec':
+    case 'ms':
+      return n;
+    default:
+      return undefined;
+  }
+}
+
+/**
+ * Short format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtShort(ms) {
+  if (ms >= d) {
+    return Math.round(ms / d) + 'd';
+  }
+  if (ms >= h) {
+    return Math.round(ms / h) + 'h';
+  }
+  if (ms >= m) {
+    return Math.round(ms / m) + 'm';
+  }
+  if (ms >= s) {
+    return Math.round(ms / s) + 's';
+  }
+  return ms + 'ms';
+}
+
+/**
+ * Long format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtLong(ms) {
+  return plural(ms, d, 'day') ||
+    plural(ms, h, 'hour') ||
+    plural(ms, m, 'minute') ||
+    plural(ms, s, 'second') ||
+    ms + ' ms';
+}
+
+/**
+ * Pluralization helper.
+ */
+
+function plural(ms, n, name) {
+  if (ms < n) {
+    return;
+  }
+  if (ms < n * 1.5) {
+    return Math.floor(ms / n) + ' ' + name;
+  }
+  return Math.ceil(ms / n) + ' ' + name + 's';
+}
diff --git a/helloworld/node_modules/localtunnel/node_modules/ms/license.md b/helloworld/node_modules/localtunnel/node_modules/ms/license.md
new file mode 100755
index 0000000..69b6125
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/node_modules/ms/license.md
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Zeit, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/helloworld/node_modules/localtunnel/node_modules/ms/readme.md b/helloworld/node_modules/localtunnel/node_modules/ms/readme.md
new file mode 100755
index 0000000..84a9974
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/node_modules/ms/readme.md
@@ -0,0 +1,51 @@
+# ms
+
+[![Build Status](https://travis-ci.org/zeit/ms.svg?branch=master)](https://travis-ci.org/zeit/ms)
+[![Slack Channel](http://zeit-slackin.now.sh/badge.svg)](https://zeit.chat/)
+
+Use this package to easily convert various time formats to milliseconds.
+
+## Examples
+
+```js
+ms('2 days')  // 172800000
+ms('1d')      // 86400000
+ms('10h')     // 36000000
+ms('2.5 hrs') // 9000000
+ms('2h')      // 7200000
+ms('1m')      // 60000
+ms('5s')      // 5000
+ms('1y')      // 31557600000
+ms('100')     // 100
+```
+
+### Convert from milliseconds
+
+```js
+ms(60000)             // "1m"
+ms(2 * 60000)         // "2m"
+ms(ms('10 hours'))    // "10h"
+```
+
+### Time format written-out
+
+```js
+ms(60000, { long: true })             // "1 minute"
+ms(2 * 60000, { long: true })         // "2 minutes"
+ms(ms('10 hours'), { long: true })    // "10 hours"
+```
+
+## Features
+
+- Works both in [node](https://nodejs.org) and in the browser.
+- If a number is supplied to `ms`, a string with a unit is returned.
+- If a string that contains the number is supplied, it returns it as a number (e.g.: it returns `100` for `'100'`).
+- If you pass a string with a number and a valid unit, the number of equivalent ms is returned.
+
+## Caught a bug?
+
+1. [Fork](https://help.github.com/articles/fork-a-repo/) this repository to your own GitHub account and then [clone](https://help.github.com/articles/cloning-a-repository/) it to your local device
+2. Link the package to the global module directory: `npm link`
+3. Within the module you want to test your local development instance of ms, just link it to the dependencies: `npm link ms`. Instead of the default one from npm, node will now use your clone of ms!
+
+As always, you can run the tests using: `npm test`
diff --git a/helloworld/node_modules/localtunnel/package.json b/helloworld/node_modules/localtunnel/package.json
new file mode 100755
index 0000000..4a2daf8
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/package.json
@@ -0,0 +1,60 @@
+{
+  "_from": "localtunnel",
+  "_id": "localtunnel@1.9.1",
+  "_inBundle": false,
+  "_integrity": "sha512-HWrhOslklDvxgOGFLxi6fQVnvpl6XdX4sPscfqMZkzi3gtt9V7LKBWYvNUcpHSVvjwCQ6xzXacVvICNbNcyPnQ==",
+  "_location": "/localtunnel",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "tag",
+    "registry": true,
+    "raw": "localtunnel",
+    "name": "localtunnel",
+    "escapedName": "localtunnel",
+    "rawSpec": "",
+    "saveSpec": null,
+    "fetchSpec": "latest"
+  },
+  "_requiredBy": [
+    "#USER",
+    "/"
+  ],
+  "_resolved": "https://registry.npmjs.org/localtunnel/-/localtunnel-1.9.1.tgz",
+  "_shasum": "1d1737eab658add5a40266d8e43f389b646ee3b1",
+  "_spec": "localtunnel",
+  "_where": "/home/devesh/Desktop/pavanSinghal",
+  "author": {
+    "name": "Roman Shtylman",
+    "email": "shtylman@gmail.com"
+  },
+  "bin": {
+    "lt": "./bin/client"
+  },
+  "bugs": {
+    "url": "https://github.com/localtunnel/localtunnel/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "axios": "0.17.1",
+    "debug": "2.6.9",
+    "openurl": "1.1.1",
+    "yargs": "6.6.0"
+  },
+  "deprecated": false,
+  "description": "expose localhost to the world",
+  "devDependencies": {
+    "mocha": "~1.17.0"
+  },
+  "homepage": "https://github.com/localtunnel/localtunnel#readme",
+  "license": "MIT",
+  "main": "./client.js",
+  "name": "localtunnel",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/localtunnel/localtunnel.git"
+  },
+  "scripts": {
+    "test": "mocha --ui qunit --reporter list --timeout 10000 -- test/index.js"
+  },
+  "version": "1.9.1"
+}
diff --git a/helloworld/node_modules/localtunnel/test/index.js b/helloworld/node_modules/localtunnel/test/index.js
new file mode 100755
index 0000000..bec0d42
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/test/index.js
@@ -0,0 +1,188 @@
+var http = require('http');
+var https = require('https');
+var url = require('url');
+var assert = require('assert');
+
+var localtunnel = require('../');
+
+test('setup local http server', function(done) {
+    var server = http.createServer();
+    server.on('request', function(req, res) {
+        res.write(req.headers.host);
+        res.end();
+    });
+    server.listen(function() {
+        var port = server.address().port;
+
+        test._fake_port = port;
+        console.log('local http on:', port);
+        done();
+    });
+});
+
+test('setup localtunnel client', function(done) {
+    localtunnel(test._fake_port, function(err, tunnel) {
+        assert.ifError(err);
+        assert.ok(new RegExp('^https:\/\/.*localtunnel.me' + '$').test(tunnel.url));
+        test._fake_url = tunnel.url;
+        done();
+    });
+});
+
+test('query localtunnel server w/ ident', function(done) {
+    var uri = test._fake_url;
+    var parsed = url.parse(uri);
+
+    var opt = {
+        host: parsed.host,
+        port: 443,
+        headers: {
+            host: parsed.hostname
+        },
+        path: '/'
+    };
+
+    var req = https.request(opt, function(res) {
+        res.setEncoding('utf8');
+        var body = '';
+
+        res.on('data', function(chunk) {
+            body += chunk;
+        });
+
+        res.on('end', function() {
+            assert(/.*[.]localtunnel[.]me/.test(body), body);
+            done();
+        });
+    });
+
+    req.end();
+});
+
+test('request specific domain', function(done) {
+    localtunnel(test._fake_port, { subdomain: 'abcd' }, function(err, tunnel) {
+        assert.ifError(err);
+        assert.ok(new RegExp('^https:\/\/abcd.localtunnel.me' + '$').test(tunnel.url));
+        tunnel.close();
+        done();
+    });
+});
+
+suite('--local-host localhost');
+
+test('setup localtunnel client', function(done) {
+    var opt = {
+        local_host: 'localhost'
+    };
+    localtunnel(test._fake_port, opt, function(err, tunnel) {
+        assert.ifError(err);
+        assert.ok(new RegExp('^https:\/\/.*localtunnel.me' + '$').test(tunnel.url));
+        test._fake_url = tunnel.url;
+        done();
+    });
+});
+
+test('override Host header with local-host', function(done) {
+    var uri = test._fake_url;
+    var parsed = url.parse(uri);
+
+    var opt = {
+        host: parsed.host,
+        port: 443,
+        headers: {
+            host: parsed.hostname
+        },
+        path: '/'
+    };
+
+    var req = https.request(opt, function(res) {
+        res.setEncoding('utf8');
+        var body = '';
+
+        res.on('data', function(chunk) {
+            body += chunk;
+        });
+
+        res.on('end', function() {
+            assert.equal(body, 'localhost');
+            done();
+        });
+    });
+
+    req.end();
+});
+
+suite('--local-host 127.0.0.1');
+
+test('setup localtunnel client', function(done) {
+    var opt = {
+        local_host: '127.0.0.1'
+    };
+    localtunnel(test._fake_port, opt, function(err, tunnel) {
+        assert.ifError(err);
+        assert.ok(new RegExp('^https:\/\/.*localtunnel.me' + '$').test(tunnel.url));
+        test._fake_url = tunnel.url;
+        done();
+    });
+});
+
+test('override Host header with local-host', function(done) {
+    var uri = test._fake_url;
+    var parsed = url.parse(uri);
+
+    var opt = {
+        host: parsed.host,
+        port: 443,
+        headers: {
+            host: parsed.hostname
+        },
+        path: '/'
+    };
+
+    var req = https.request(opt, function(res) {
+        res.setEncoding('utf8');
+        var body = '';
+
+        res.on('data', function(chunk) {
+            body += chunk;
+        });
+
+        res.on('end', function() {
+            assert.equal(body, '127.0.0.1');
+            done();
+        });
+    });
+
+    req.end();
+});
+
+test('send chunked request', function(done) {
+    var uri = test._fake_url;
+    var parsed = url.parse(uri);
+
+    var opt = {
+        host: parsed.host,
+        port: 443,
+        headers: {
+            host: parsed.hostname,
+            'Transfer-Encoding': 'chunked'
+        },
+        path: '/'
+    };
+
+    var req = https.request(opt, function(res) {
+        res.setEncoding('utf8');
+        var body = '';
+
+        res.on('data', function(chunk) {
+            body += chunk;
+        });
+
+        res.on('end', function() {
+            assert.equal(body, '127.0.0.1');
+            done();
+        });
+    });
+
+    req.end(require('crypto').randomBytes(1024 * 8).toString('base64'));
+});
diff --git a/helloworld/node_modules/localtunnel/yarn.lock b/helloworld/node_modules/localtunnel/yarn.lock
new file mode 100755
index 0000000..7ee7d16
--- /dev/null
+++ b/helloworld/node_modules/localtunnel/yarn.lock
@@ -0,0 +1,379 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+ansi-regex@^2.0.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-2.1.1.tgz#c3b33ab5ee360d86e0e628f0468ae7ef27d654df"
+
+axios@0.17.1:
+  version "0.17.1"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-0.17.1.tgz#2d8e3e5d0bdbd7327f91bc814f5c57660f81824d"
+  dependencies:
+    follow-redirects "^1.2.5"
+    is-buffer "^1.1.5"
+
+builtin-modules@^1.0.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-1.1.1.tgz#270f076c5a72c02f5b65a47df94c5fe3a278892f"
+
+camelcase@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-3.0.0.tgz#32fc4b9fcdaf845fcdf7e73bb97cac2261f0ab0a"
+
+cliui@^3.2.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/cliui/-/cliui-3.2.0.tgz#120601537a916d29940f934da3b48d585a39213d"
+  dependencies:
+    string-width "^1.0.1"
+    strip-ansi "^3.0.1"
+    wrap-ansi "^2.0.0"
+
+code-point-at@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
+
+commander@0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-0.6.1.tgz#fa68a14f6a945d54dbbe50d8cdb3320e9e3b1a06"
+
+commander@2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.0.0.tgz#d1b86f901f8b64bd941bdeadaf924530393be928"
+
+debug@*, debug@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
+  dependencies:
+    ms "2.0.0"
+
+debug@2.6.9:
+  version "2.6.9"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
+  dependencies:
+    ms "2.0.0"
+
+decamelize@^1.1.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
+
+diff@1.0.7:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/diff/-/diff-1.0.7.tgz#24bbb001c4a7d5522169e7cabdb2c2814ed91cf4"
+
+error-ex@^1.2.0:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.2.tgz#b4ac40648107fdcdcfae242f428bea8a14d4f1bf"
+  dependencies:
+    is-arrayish "^0.2.1"
+
+find-up@^1.0.0:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/find-up/-/find-up-1.1.2.tgz#6b2e9822b1a2ce0a60ab64d610eccad53cb24d0f"
+  dependencies:
+    path-exists "^2.0.0"
+    pinkie-promise "^2.0.0"
+
+follow-redirects@^1.2.5:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.4.1.tgz#d8120f4518190f55aac65bb6fc7b85fcd666d6aa"
+  dependencies:
+    debug "^3.1.0"
+
+get-caller-file@^1.0.1:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.3.tgz#f978fa4c90d1dfe7ff2d6beda2a515e713bdcf4a"
+
+glob@3.2.3:
+  version "3.2.3"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-3.2.3.tgz#e313eeb249c7affaa5c475286b0e115b59839467"
+  dependencies:
+    graceful-fs "~2.0.0"
+    inherits "2"
+    minimatch "~0.2.11"
+
+graceful-fs@^4.1.2:
+  version "4.1.11"
+  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
+
+graceful-fs@~2.0.0:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-2.0.3.tgz#7cd2cdb228a4a3f36e95efa6cc142de7d1a136d0"
+
+growl@1.7.x:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/growl/-/growl-1.7.0.tgz#de2d66136d002e112ba70f3f10c31cf7c350b2da"
+
+hosted-git-info@^2.1.4:
+  version "2.7.1"
+  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.7.1.tgz#97f236977bd6e125408930ff6de3eec6281ec047"
+
+inherits@2:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
+
+invert-kv@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-1.0.0.tgz#104a8e4aaca6d3d8cd157a8ef8bfab2d7a3ffdb6"
+
+is-arrayish@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.2.1.tgz#77c99840527aa8ecb1a8ba697b80645a7a926a9d"
+
+is-buffer@^1.1.5:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.6.tgz#efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be"
+
+is-builtin-module@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-builtin-module/-/is-builtin-module-1.0.0.tgz#540572d34f7ac3119f8f76c30cbc1b1e037affbe"
+  dependencies:
+    builtin-modules "^1.0.0"
+
+is-fullwidth-code-point@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz#ef9e31386f031a7f0d643af82fde50c457ef00cb"
+  dependencies:
+    number-is-nan "^1.0.0"
+
+is-utf8@^0.2.0:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/is-utf8/-/is-utf8-0.2.1.tgz#4b0da1442104d1b336340e80797e865cf39f7d72"
+
+jade@0.26.3:
+  version "0.26.3"
+  resolved "https://registry.yarnpkg.com/jade/-/jade-0.26.3.tgz#8f10d7977d8d79f2f6ff862a81b0513ccb25686c"
+  dependencies:
+    commander "0.6.1"
+    mkdirp "0.3.0"
+
+lcid@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/lcid/-/lcid-1.0.0.tgz#308accafa0bc483a3867b4b6f2b9506251d1b835"
+  dependencies:
+    invert-kv "^1.0.0"
+
+load-json-file@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
+  dependencies:
+    graceful-fs "^4.1.2"
+    parse-json "^2.2.0"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+    strip-bom "^2.0.0"
+
+lru-cache@2:
+  version "2.7.3"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-2.7.3.tgz#6d4524e8b955f95d4f5b58851ce21dd72fb4e952"
+
+minimatch@~0.2.11:
+  version "0.2.14"
+  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-0.2.14.tgz#c74e780574f63c6f9a090e90efbe6ef53a6a756a"
+  dependencies:
+    lru-cache "2"
+    sigmund "~1.0.0"
+
+mkdirp@0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.3.0.tgz#1bbf5ab1ba827af23575143490426455f481fe1e"
+
+mkdirp@0.3.5:
+  version "0.3.5"
+  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.3.5.tgz#de3e5f8961c88c787ee1368df849ac4413eca8d7"
+
+mocha@~1.17.0:
+  version "1.17.1"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-1.17.1.tgz#7f7671d68526d074b7bae660c9099f87e0ea1ccb"
+  dependencies:
+    commander "2.0.0"
+    debug "*"
+    diff "1.0.7"
+    glob "3.2.3"
+    growl "1.7.x"
+    jade "0.26.3"
+    mkdirp "0.3.5"
+
+ms@2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
+
+normalize-package-data@^2.3.2:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.4.0.tgz#12f95a307d58352075a04907b84ac8be98ac012f"
+  dependencies:
+    hosted-git-info "^2.1.4"
+    is-builtin-module "^1.0.0"
+    semver "2 || 3 || 4 || 5"
+    validate-npm-package-license "^3.0.1"
+
+number-is-nan@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
+
+openurl@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/openurl/-/openurl-1.1.1.tgz#3875b4b0ef7a52c156f0db41d4609dbb0f94b387"
+
+os-locale@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-1.4.0.tgz#20f9f17ae29ed345e8bde583b13d2009803c14d9"
+  dependencies:
+    lcid "^1.0.0"
+
+parse-json@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/parse-json/-/parse-json-2.2.0.tgz#f480f40434ef80741f8469099f8dea18f55a4dc9"
+  dependencies:
+    error-ex "^1.2.0"
+
+path-exists@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-2.1.0.tgz#0feb6c64f0fc518d9a754dd5efb62c7022761f4b"
+  dependencies:
+    pinkie-promise "^2.0.0"
+
+path-type@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/path-type/-/path-type-1.1.0.tgz#59c44f7ee491da704da415da5a4070ba4f8fe441"
+  dependencies:
+    graceful-fs "^4.1.2"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+
+pify@^2.0.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
+
+pinkie-promise@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/pinkie-promise/-/pinkie-promise-2.0.1.tgz#2135d6dfa7a358c069ac9b178776288228450ffa"
+  dependencies:
+    pinkie "^2.0.0"
+
+pinkie@^2.0.0:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/pinkie/-/pinkie-2.0.4.tgz#72556b80cfa0d48a974e80e77248e80ed4f7f870"
+
+read-pkg-up@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-1.0.1.tgz#9d63c13276c065918d57f002a57f40a1b643fb02"
+  dependencies:
+    find-up "^1.0.0"
+    read-pkg "^1.0.0"
+
+read-pkg@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-1.1.0.tgz#f5ffaa5ecd29cb31c0474bca7d756b6bb29e3f28"
+  dependencies:
+    load-json-file "^1.0.0"
+    normalize-package-data "^2.3.2"
+    path-type "^1.0.0"
+
+require-directory@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
+
+require-main-filename@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
+
+"semver@2 || 3 || 4 || 5":
+  version "5.5.1"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.1.tgz#7dfdd8814bdb7cabc7be0fb1d734cfb66c940477"
+
+set-blocking@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
+
+sigmund@~1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/sigmund/-/sigmund-1.0.1.tgz#3ff21f198cad2175f9f3b781853fd94d0d19b590"
+
+spdx-correct@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/spdx-correct/-/spdx-correct-3.0.0.tgz#05a5b4d7153a195bc92c3c425b69f3b2a9524c82"
+  dependencies:
+    spdx-expression-parse "^3.0.0"
+    spdx-license-ids "^3.0.0"
+
+spdx-exceptions@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/spdx-exceptions/-/spdx-exceptions-2.1.0.tgz#2c7ae61056c714a5b9b9b2b2af7d311ef5c78fe9"
+
+spdx-expression-parse@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/spdx-expression-parse/-/spdx-expression-parse-3.0.0.tgz#99e119b7a5da00e05491c9fa338b7904823b41d0"
+  dependencies:
+    spdx-exceptions "^2.1.0"
+    spdx-license-ids "^3.0.0"
+
+spdx-license-ids@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/spdx-license-ids/-/spdx-license-ids-3.0.1.tgz#e2a303236cac54b04031fa7a5a79c7e701df852f"
+
+string-width@^1.0.1, string-width@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
+  dependencies:
+    code-point-at "^1.0.0"
+    is-fullwidth-code-point "^1.0.0"
+    strip-ansi "^3.0.0"
+
+strip-ansi@^3.0.0, strip-ansi@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
+  dependencies:
+    ansi-regex "^2.0.0"
+
+strip-bom@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-2.0.0.tgz#6219a85616520491f35788bdbf1447a99c7e6b0e"
+  dependencies:
+    is-utf8 "^0.2.0"
+
+validate-npm-package-license@^3.0.1:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz#fc91f6b9c7ba15c857f4cb2c5defeec39d4f410a"
+  dependencies:
+    spdx-correct "^3.0.0"
+    spdx-expression-parse "^3.0.0"
+
+which-module@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/which-module/-/which-module-1.0.0.tgz#bba63ca861948994ff307736089e3b96026c2a4f"
+
+wrap-ansi@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
+  dependencies:
+    string-width "^1.0.1"
+    strip-ansi "^3.0.1"
+
+y18n@^3.2.1:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
+
+yargs-parser@^4.2.0:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-4.2.1.tgz#29cceac0dc4f03c6c87b4a9f217dd18c9f74871c"
+  dependencies:
+    camelcase "^3.0.0"
+
+yargs@6.6.0:
+  version "6.6.0"
+  resolved "http://registry.npmjs.org/yargs/-/yargs-6.6.0.tgz#782ec21ef403345f830a808ca3d513af56065208"
+  dependencies:
+    camelcase "^3.0.0"
+    cliui "^3.2.0"
+    decamelize "^1.1.1"
+    get-caller-file "^1.0.1"
+    os-locale "^1.4.0"
+    read-pkg-up "^1.0.1"
+    require-directory "^2.1.1"
+    require-main-filename "^1.0.1"
+    set-blocking "^2.0.0"
+    string-width "^1.0.2"
+    which-module "^1.0.0"
+    y18n "^3.2.1"
+    yargs-parser "^4.2.0"
diff --git a/helloworld/node_modules/lowercase-keys/index.js b/helloworld/node_modules/lowercase-keys/index.js
new file mode 100755
index 0000000..b8d8898
--- /dev/null
+++ b/helloworld/node_modules/lowercase-keys/index.js
@@ -0,0 +1,11 @@
+'use strict';
+module.exports = function (obj) {
+	var ret = {};
+	var keys = Object.keys(Object(obj));
+
+	for (var i = 0; i < keys.length; i++) {
+		ret[keys[i].toLowerCase()] = obj[keys[i]];
+	}
+
+	return ret;
+};
diff --git a/helloworld/node_modules/lowercase-keys/license b/helloworld/node_modules/lowercase-keys/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/lowercase-keys/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/lowercase-keys/readme.md b/helloworld/node_modules/lowercase-keys/readme.md
new file mode 100755
index 0000000..dc65770
--- /dev/null
+++ b/helloworld/node_modules/lowercase-keys/readme.md
@@ -0,0 +1,33 @@
+# lowercase-keys [![Build Status](https://travis-ci.org/sindresorhus/lowercase-keys.svg?branch=master)](https://travis-ci.org/sindresorhus/lowercase-keys)
+
+> Lowercase the keys of an object
+
+
+## Install
+
+```
+$ npm install --save lowercase-keys
+```
+
+
+## Usage
+
+```js
+var lowercaseKeys = require('lowercase-keys');
+
+lowercaseKeys({FOO: true, bAr: false});
+//=> {foo: true, bar: false}
+```
+
+
+## API
+
+### lowercaseKeys(object)
+
+Lowercases the keys and returns a new object.
+
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/mime-db/HISTORY.md b/helloworld/node_modules/mime-db/HISTORY.md
new file mode 100755
index 0000000..577194c
--- /dev/null
+++ b/helloworld/node_modules/mime-db/HISTORY.md
@@ -0,0 +1,405 @@
+1.38.0 / 2019-02-04
+===================
+
+  * Add extension `.nq` to `application/n-quads`
+  * Add extension `.nt` to `application/n-triples`
+  * Add new upstream MIME types
+  * Mark `text/less` as compressible
+
+1.37.0 / 2018-10-19
+===================
+
+  * Add extensions to HEIC image types
+  * Add new upstream MIME types
+
+1.36.0 / 2018-08-20
+===================
+
+  * Add Apple file extensions from IANA
+  * Add extensions from IANA for `image/*` types
+  * Add new upstream MIME types
+
+1.35.0 / 2018-07-15
+===================
+
+  * Add extension `.owl` to `application/rdf+xml`
+  * Add new upstream MIME types
+    - Removes extension `.woff` from `application/font-woff`
+
+1.34.0 / 2018-06-03
+===================
+
+  * Add extension `.csl` to `application/vnd.citationstyles.style+xml`
+  * Add extension `.es` to `application/ecmascript`
+  * Add new upstream MIME types
+  * Add `UTF-8` as default charset for `text/turtle`
+  * Mark all XML-derived types as compressible
+
+1.33.0 / 2018-02-15
+===================
+
+  * Add extensions from IANA for `message/*` types
+  * Add new upstream MIME types
+  * Fix some incorrect OOXML types
+  * Remove `application/font-woff2`
+
+1.32.0 / 2017-11-29
+===================
+
+  * Add new upstream MIME types
+  * Update `text/hjson` to registered `application/hjson`
+  * Add `text/shex` with extension `.shex`
+
+1.31.0 / 2017-10-25
+===================
+
+  * Add `application/raml+yaml` with extension `.raml`
+  * Add `application/wasm` with extension `.wasm`
+  * Add new `font` type from IANA
+  * Add new upstream font extensions
+  * Add new upstream MIME types
+  * Add extensions for JPEG-2000 images
+
+1.30.0 / 2017-08-27
+===================
+
+  * Add `application/vnd.ms-outlook`
+  * Add `application/x-arj`
+  * Add extension `.mjs` to `application/javascript`
+  * Add glTF types and extensions
+  * Add new upstream MIME types
+  * Add `text/x-org`
+  * Add VirtualBox MIME types
+  * Fix `source` records for `video/*` types that are IANA
+  * Update `font/opentype` to registered `font/otf`
+
+1.29.0 / 2017-07-10
+===================
+
+  * Add `application/fido.trusted-apps+json`
+  * Add extension `.wadl` to `application/vnd.sun.wadl+xml`
+  * Add new upstream MIME types
+  * Add `UTF-8` as default charset for `text/css`
+
+1.28.0 / 2017-05-14
+===================
+
+  * Add new upstream MIME types
+  * Add extension `.gz` to `application/gzip`
+  * Update extensions `.md` and `.markdown` to be `text/markdown`
+
+1.27.0 / 2017-03-16
+===================
+
+  * Add new upstream MIME types
+  * Add `image/apng` with extension `.apng`
+
+1.26.0 / 2017-01-14
+===================
+
+  * Add new upstream MIME types
+  * Add extension `.geojson` to `application/geo+json`
+
+1.25.0 / 2016-11-11
+===================
+
+  * Add new upstream MIME types
+
+1.24.0 / 2016-09-18
+===================
+
+  * Add `audio/mp3`
+  * Add new upstream MIME types
+
+1.23.0 / 2016-05-01
+===================
+
+  * Add new upstream MIME types
+  * Add extension `.3gpp` to `audio/3gpp`
+
+1.22.0 / 2016-02-15
+===================
+
+  * Add `text/slim`
+  * Add extension `.rng` to `application/xml`
+  * Add new upstream MIME types
+  * Fix extension of `application/dash+xml` to be `.mpd`
+  * Update primary extension to `.m4a` for `audio/mp4`
+
+1.21.0 / 2016-01-06
+===================
+
+  * Add Google document types
+  * Add new upstream MIME types
+
+1.20.0 / 2015-11-10
+===================
+
+  * Add `text/x-suse-ymp`
+  * Add new upstream MIME types
+
+1.19.0 / 2015-09-17
+===================
+
+  * Add `application/vnd.apple.pkpass`
+  * Add new upstream MIME types
+
+1.18.0 / 2015-09-03
+===================
+
+  * Add new upstream MIME types
+
+1.17.0 / 2015-08-13
+===================
+
+  * Add `application/x-msdos-program`
+  * Add `audio/g711-0`
+  * Add `image/vnd.mozilla.apng`
+  * Add extension `.exe` to `application/x-msdos-program`
+
+1.16.0 / 2015-07-29
+===================
+
+  * Add `application/vnd.uri-map`
+
+1.15.0 / 2015-07-13
+===================
+
+  * Add `application/x-httpd-php`
+
+1.14.0 / 2015-06-25
+===================
+
+  * Add `application/scim+json`
+  * Add `application/vnd.3gpp.ussd+xml`
+  * Add `application/vnd.biopax.rdf+xml`
+  * Add `text/x-processing`
+
+1.13.0 / 2015-06-07
+===================
+
+  * Add nginx as a source
+  * Add `application/x-cocoa`
+  * Add `application/x-java-archive-diff`
+  * Add `application/x-makeself`
+  * Add `application/x-perl`
+  * Add `application/x-pilot`
+  * Add `application/x-redhat-package-manager`
+  * Add `application/x-sea`
+  * Add `audio/x-m4a`
+  * Add `audio/x-realaudio`
+  * Add `image/x-jng`
+  * Add `text/mathml`
+
+1.12.0 / 2015-06-05
+===================
+
+  * Add `application/bdoc`
+  * Add `application/vnd.hyperdrive+json`
+  * Add `application/x-bdoc`
+  * Add extension `.rtf` to `text/rtf`
+
+1.11.0 / 2015-05-31
+===================
+
+  * Add `audio/wav`
+  * Add `audio/wave`
+  * Add extension `.litcoffee` to `text/coffeescript`
+  * Add extension `.sfd-hdstx` to `application/vnd.hydrostatix.sof-data`
+  * Add extension `.n-gage` to `application/vnd.nokia.n-gage.symbian.install`
+
+1.10.0 / 2015-05-19
+===================
+
+  * Add `application/vnd.balsamiq.bmpr`
+  * Add `application/vnd.microsoft.portable-executable`
+  * Add `application/x-ns-proxy-autoconfig`
+
+1.9.1 / 2015-04-19
+==================
+
+  * Remove `.json` extension from `application/manifest+json`
+    - This is causing bugs downstream
+
+1.9.0 / 2015-04-19
+==================
+
+  * Add `application/manifest+json`
+  * Add `application/vnd.micro+json`
+  * Add `image/vnd.zbrush.pcx`
+  * Add `image/x-ms-bmp`
+
+1.8.0 / 2015-03-13
+==================
+
+  * Add `application/vnd.citationstyles.style+xml`
+  * Add `application/vnd.fastcopy-disk-image`
+  * Add `application/vnd.gov.sk.xmldatacontainer+xml`
+  * Add extension `.jsonld` to `application/ld+json`
+
+1.7.0 / 2015-02-08
+==================
+
+  * Add `application/vnd.gerber`
+  * Add `application/vnd.msa-disk-image`
+
+1.6.1 / 2015-02-05
+==================
+
+  * Community extensions ownership transferred from `node-mime`
+
+1.6.0 / 2015-01-29
+==================
+
+  * Add `application/jose`
+  * Add `application/jose+json`
+  * Add `application/json-seq`
+  * Add `application/jwk+json`
+  * Add `application/jwk-set+json`
+  * Add `application/jwt`
+  * Add `application/rdap+json`
+  * Add `application/vnd.gov.sk.e-form+xml`
+  * Add `application/vnd.ims.imsccv1p3`
+
+1.5.0 / 2014-12-30
+==================
+
+  * Add `application/vnd.oracle.resource+json`
+  * Fix various invalid MIME type entries
+    - `application/mbox+xml`
+    - `application/oscp-response`
+    - `application/vwg-multiplexed`
+    - `audio/g721`
+
+1.4.0 / 2014-12-21
+==================
+
+  * Add `application/vnd.ims.imsccv1p2`
+  * Fix various invalid MIME type entries
+    - `application/vnd-acucobol`
+    - `application/vnd-curl`
+    - `application/vnd-dart`
+    - `application/vnd-dxr`
+    - `application/vnd-fdf`
+    - `application/vnd-mif`
+    - `application/vnd-sema`
+    - `application/vnd-wap-wmlc`
+    - `application/vnd.adobe.flash-movie`
+    - `application/vnd.dece-zip`
+    - `application/vnd.dvb_service`
+    - `application/vnd.micrografx-igx`
+    - `application/vnd.sealed-doc`
+    - `application/vnd.sealed-eml`
+    - `application/vnd.sealed-mht`
+    - `application/vnd.sealed-ppt`
+    - `application/vnd.sealed-tiff`
+    - `application/vnd.sealed-xls`
+    - `application/vnd.sealedmedia.softseal-html`
+    - `application/vnd.sealedmedia.softseal-pdf`
+    - `application/vnd.wap-slc`
+    - `application/vnd.wap-wbxml`
+    - `audio/vnd.sealedmedia.softseal-mpeg`
+    - `image/vnd-djvu`
+    - `image/vnd-svf`
+    - `image/vnd-wap-wbmp`
+    - `image/vnd.sealed-png`
+    - `image/vnd.sealedmedia.softseal-gif`
+    - `image/vnd.sealedmedia.softseal-jpg`
+    - `model/vnd-dwf`
+    - `model/vnd.parasolid.transmit-binary`
+    - `model/vnd.parasolid.transmit-text`
+    - `text/vnd-a`
+    - `text/vnd-curl`
+    - `text/vnd.wap-wml`
+  * Remove example template MIME types
+    - `application/example`
+    - `audio/example`
+    - `image/example`
+    - `message/example`
+    - `model/example`
+    - `multipart/example`
+    - `text/example`
+    - `video/example`
+
+1.3.1 / 2014-12-16
+==================
+
+  * Fix missing extensions
+    - `application/json5`
+    - `text/hjson`
+
+1.3.0 / 2014-12-07
+==================
+
+  * Add `application/a2l`
+  * Add `application/aml`
+  * Add `application/atfx`
+  * Add `application/atxml`
+  * Add `application/cdfx+xml`
+  * Add `application/dii`
+  * Add `application/json5`
+  * Add `application/lxf`
+  * Add `application/mf4`
+  * Add `application/vnd.apache.thrift.compact`
+  * Add `application/vnd.apache.thrift.json`
+  * Add `application/vnd.coffeescript`
+  * Add `application/vnd.enphase.envoy`
+  * Add `application/vnd.ims.imsccv1p1`
+  * Add `text/csv-schema`
+  * Add `text/hjson`
+  * Add `text/markdown`
+  * Add `text/yaml`
+
+1.2.0 / 2014-11-09
+==================
+
+  * Add `application/cea`
+  * Add `application/dit`
+  * Add `application/vnd.gov.sk.e-form+zip`
+  * Add `application/vnd.tmd.mediaflex.api+xml`
+  * Type `application/epub+zip` is now IANA-registered
+
+1.1.2 / 2014-10-23
+==================
+
+  * Rebuild database for `application/x-www-form-urlencoded` change
+
+1.1.1 / 2014-10-20
+==================
+
+  * Mark `application/x-www-form-urlencoded` as compressible.
+
+1.1.0 / 2014-09-28
+==================
+
+  * Add `application/font-woff2`
+
+1.0.3 / 2014-09-25
+==================
+
+  * Fix engine requirement in package
+
+1.0.2 / 2014-09-25
+==================
+
+  * Add `application/coap-group+json`
+  * Add `application/dcd`
+  * Add `application/vnd.apache.thrift.binary`
+  * Add `image/vnd.tencent.tap`
+  * Mark all JSON-derived types as compressible
+  * Update `text/vtt` data
+
+1.0.1 / 2014-08-30
+==================
+
+  * Fix extension ordering
+
+1.0.0 / 2014-08-30
+==================
+
+  * Add `application/atf`
+  * Add `application/merge-patch+json`
+  * Add `multipart/x-mixed-replace`
+  * Add `source: 'apache'` metadata
+  * Add `source: 'iana'` metadata
+  * Remove badly-assumed charset data
diff --git a/helloworld/node_modules/mime-db/LICENSE b/helloworld/node_modules/mime-db/LICENSE
new file mode 100755
index 0000000..a7ae8ee
--- /dev/null
+++ b/helloworld/node_modules/mime-db/LICENSE
@@ -0,0 +1,22 @@
+
+The MIT License (MIT)
+
+Copyright (c) 2014 Jonathan Ong me@jongleberry.com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/mime-db/README.md b/helloworld/node_modules/mime-db/README.md
new file mode 100755
index 0000000..dcc9d09
--- /dev/null
+++ b/helloworld/node_modules/mime-db/README.md
@@ -0,0 +1,94 @@
+# mime-db
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-image]][node-url]
+[![Build Status][travis-image]][travis-url]
+[![Coverage Status][coveralls-image]][coveralls-url]
+
+This is a database of all mime types.
+It consists of a single, public JSON file and does not include any logic,
+allowing it to remain as un-opinionated as possible with an API.
+It aggregates data from the following sources:
+
+- http://www.iana.org/assignments/media-types/media-types.xhtml
+- http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types
+- http://hg.nginx.org/nginx/raw-file/default/conf/mime.types
+
+## Installation
+
+```bash
+npm install mime-db
+```
+
+### Database Download
+
+If you're crazy enough to use this in the browser, you can just grab the
+JSON file using [jsDelivr](https://www.jsdelivr.com/). It is recommended to
+replace `master` with [a release tag](https://github.com/jshttp/mime-db/tags)
+as the JSON format may change in the future.
+
+```
+https://cdn.jsdelivr.net/gh/jshttp/mime-db@master/db.json
+```
+
+## Usage
+
+```js
+var db = require('mime-db');
+
+// grab data on .js files
+var data = db['application/javascript'];
+```
+
+## Data Structure
+
+The JSON file is a map lookup for lowercased mime types.
+Each mime type has the following properties:
+
+- `.source` - where the mime type is defined.
+    If not set, it's probably a custom media type.
+    - `apache` - [Apache common media types](http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types)
+    - `iana` - [IANA-defined media types](http://www.iana.org/assignments/media-types/media-types.xhtml)
+    - `nginx` - [nginx media types](http://hg.nginx.org/nginx/raw-file/default/conf/mime.types)
+- `.extensions[]` - known extensions associated with this mime type.
+- `.compressible` - whether a file of this type can be gzipped.
+- `.charset` - the default charset associated with this type, if any.
+
+If unknown, every property could be `undefined`.
+
+## Contributing
+
+To edit the database, only make PRs against `src/custom.json` or
+`src/custom-suffix.json`.
+
+The `src/custom.json` file is a JSON object with the MIME type as the keys
+and the values being an object with the following keys:
+
+- `compressible` - leave out if you don't know, otherwise `true`/`false` to
+  indicate whether the data represented by the type is typically compressible.
+- `extensions` - include an array of file extensions that are associated with
+  the type.
+- `notes` - human-readable notes about the type, typically what the type is.
+- `sources` - include an array of URLs of where the MIME type and the associated
+  extensions are sourced from. This needs to be a [primary source](https://en.wikipedia.org/wiki/Primary_source);
+  links to type aggregating sites and Wikipedia are _not acceptable_.
+
+To update the build, run `npm run build`.
+
+## Adding Custom Media Types
+
+The best way to get new media types included in this library is to register
+them with the IANA. The community registration procedure is outlined in
+[RFC 6838 section 5](http://tools.ietf.org/html/rfc6838#section-5). Types
+registered with the IANA are automatically pulled into this library.
+
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/mime-db/master
+[coveralls-url]: https://coveralls.io/r/jshttp/mime-db?branch=master
+[node-image]: https://badgen.net/npm/node/mime-db
+[node-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/mime-db
+[npm-url]: https://npmjs.org/package/mime-db
+[npm-version-image]: https://badgen.net/npm/v/mime-db
+[travis-image]: https://badgen.net/travis/jshttp/mime-db/master
+[travis-url]: https://travis-ci.org/jshttp/mime-db
diff --git a/helloworld/node_modules/mime-db/db.json b/helloworld/node_modules/mime-db/db.json
new file mode 100755
index 0000000..ba4db79
--- /dev/null
+++ b/helloworld/node_modules/mime-db/db.json
@@ -0,0 +1,7797 @@
+{
+  "application/1d-interleaved-parityfec": {
+    "source": "iana"
+  },
+  "application/3gpdash-qoe-report+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/3gpp-ims+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/a2l": {
+    "source": "iana"
+  },
+  "application/activemessage": {
+    "source": "iana"
+  },
+  "application/activity+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-costmap+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-costmapfilter+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-directory+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-endpointcost+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-endpointcostparams+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-endpointprop+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-endpointpropparams+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-error+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-networkmap+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/alto-networkmapfilter+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/aml": {
+    "source": "iana"
+  },
+  "application/andrew-inset": {
+    "source": "iana",
+    "extensions": ["ez"]
+  },
+  "application/applefile": {
+    "source": "iana"
+  },
+  "application/applixware": {
+    "source": "apache",
+    "extensions": ["aw"]
+  },
+  "application/atf": {
+    "source": "iana"
+  },
+  "application/atfx": {
+    "source": "iana"
+  },
+  "application/atom+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["atom"]
+  },
+  "application/atomcat+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["atomcat"]
+  },
+  "application/atomdeleted+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/atomicmail": {
+    "source": "iana"
+  },
+  "application/atomsvc+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["atomsvc"]
+  },
+  "application/atxml": {
+    "source": "iana"
+  },
+  "application/auth-policy+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/bacnet-xdd+zip": {
+    "source": "iana",
+    "compressible": false
+  },
+  "application/batch-smtp": {
+    "source": "iana"
+  },
+  "application/bdoc": {
+    "compressible": false,
+    "extensions": ["bdoc"]
+  },
+  "application/beep+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/calendar+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/calendar+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/call-completion": {
+    "source": "iana"
+  },
+  "application/cals-1840": {
+    "source": "iana"
+  },
+  "application/cbor": {
+    "source": "iana"
+  },
+  "application/cccex": {
+    "source": "iana"
+  },
+  "application/ccmp+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/ccxml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["ccxml"]
+  },
+  "application/cdfx+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cdmi-capability": {
+    "source": "iana",
+    "extensions": ["cdmia"]
+  },
+  "application/cdmi-container": {
+    "source": "iana",
+    "extensions": ["cdmic"]
+  },
+  "application/cdmi-domain": {
+    "source": "iana",
+    "extensions": ["cdmid"]
+  },
+  "application/cdmi-object": {
+    "source": "iana",
+    "extensions": ["cdmio"]
+  },
+  "application/cdmi-queue": {
+    "source": "iana",
+    "extensions": ["cdmiq"]
+  },
+  "application/cdni": {
+    "source": "iana"
+  },
+  "application/cea": {
+    "source": "iana"
+  },
+  "application/cea-2018+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cellml+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cfw": {
+    "source": "iana"
+  },
+  "application/clue_info+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cms": {
+    "source": "iana"
+  },
+  "application/cnrp+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/coap-group+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/coap-payload": {
+    "source": "iana"
+  },
+  "application/commonground": {
+    "source": "iana"
+  },
+  "application/conference-info+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cose": {
+    "source": "iana"
+  },
+  "application/cose-key": {
+    "source": "iana"
+  },
+  "application/cose-key-set": {
+    "source": "iana"
+  },
+  "application/cpl+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/csrattrs": {
+    "source": "iana"
+  },
+  "application/csta+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cstadata+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/csvm+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/cu-seeme": {
+    "source": "apache",
+    "extensions": ["cu"]
+  },
+  "application/cwt": {
+    "source": "iana"
+  },
+  "application/cybercash": {
+    "source": "iana"
+  },
+  "application/dart": {
+    "compressible": true
+  },
+  "application/dash+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mpd"]
+  },
+  "application/dashdelta": {
+    "source": "iana"
+  },
+  "application/davmount+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["davmount"]
+  },
+  "application/dca-rft": {
+    "source": "iana"
+  },
+  "application/dcd": {
+    "source": "iana"
+  },
+  "application/dec-dx": {
+    "source": "iana"
+  },
+  "application/dialog-info+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/dicom": {
+    "source": "iana"
+  },
+  "application/dicom+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/dicom+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/dii": {
+    "source": "iana"
+  },
+  "application/dit": {
+    "source": "iana"
+  },
+  "application/dns": {
+    "source": "iana"
+  },
+  "application/dns+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/dns-message": {
+    "source": "iana"
+  },
+  "application/docbook+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["dbk"]
+  },
+  "application/dskpp+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/dssc+der": {
+    "source": "iana",
+    "extensions": ["dssc"]
+  },
+  "application/dssc+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xdssc"]
+  },
+  "application/dvcs": {
+    "source": "iana"
+  },
+  "application/ecmascript": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["ecma","es"]
+  },
+  "application/edi-consent": {
+    "source": "iana"
+  },
+  "application/edi-x12": {
+    "source": "iana",
+    "compressible": false
+  },
+  "application/edifact": {
+    "source": "iana",
+    "compressible": false
+  },
+  "application/efi": {
+    "source": "iana"
+  },
+  "application/emergencycalldata.comment+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emergencycalldata.control+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emergencycalldata.deviceinfo+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emergencycalldata.ecall.msd": {
+    "source": "iana"
+  },
+  "application/emergencycalldata.providerinfo+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emergencycalldata.serviceinfo+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emergencycalldata.subscriberinfo+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emergencycalldata.veds+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/emma+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["emma"]
+  },
+  "application/emotionml+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/encaprtp": {
+    "source": "iana"
+  },
+  "application/epp+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/epub+zip": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["epub"]
+  },
+  "application/eshop": {
+    "source": "iana"
+  },
+  "application/exi": {
+    "source": "iana",
+    "extensions": ["exi"]
+  },
+  "application/expect-ct-report+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/fastinfoset": {
+    "source": "iana"
+  },
+  "application/fastsoap": {
+    "source": "iana"
+  },
+  "application/fdt+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/fhir+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/fhir+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/fido.trusted-apps+json": {
+    "compressible": true
+  },
+  "application/fits": {
+    "source": "iana"
+  },
+  "application/font-sfnt": {
+    "source": "iana"
+  },
+  "application/font-tdpfr": {
+    "source": "iana",
+    "extensions": ["pfr"]
+  },
+  "application/font-woff": {
+    "source": "iana",
+    "compressible": false
+  },
+  "application/framework-attributes+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/geo+json": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["geojson"]
+  },
+  "application/geo+json-seq": {
+    "source": "iana"
+  },
+  "application/geopackage+sqlite3": {
+    "source": "iana"
+  },
+  "application/geoxacml+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/gltf-buffer": {
+    "source": "iana"
+  },
+  "application/gml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["gml"]
+  },
+  "application/gpx+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["gpx"]
+  },
+  "application/gxf": {
+    "source": "apache",
+    "extensions": ["gxf"]
+  },
+  "application/gzip": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["gz"]
+  },
+  "application/h224": {
+    "source": "iana"
+  },
+  "application/held+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/hjson": {
+    "extensions": ["hjson"]
+  },
+  "application/http": {
+    "source": "iana"
+  },
+  "application/hyperstudio": {
+    "source": "iana",
+    "extensions": ["stk"]
+  },
+  "application/ibe-key-request+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/ibe-pkg-reply+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/ibe-pp-data": {
+    "source": "iana"
+  },
+  "application/iges": {
+    "source": "iana"
+  },
+  "application/im-iscomposing+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/index": {
+    "source": "iana"
+  },
+  "application/index.cmd": {
+    "source": "iana"
+  },
+  "application/index.obj": {
+    "source": "iana"
+  },
+  "application/index.response": {
+    "source": "iana"
+  },
+  "application/index.vnd": {
+    "source": "iana"
+  },
+  "application/inkml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["ink","inkml"]
+  },
+  "application/iotp": {
+    "source": "iana"
+  },
+  "application/ipfix": {
+    "source": "iana",
+    "extensions": ["ipfix"]
+  },
+  "application/ipp": {
+    "source": "iana"
+  },
+  "application/isup": {
+    "source": "iana"
+  },
+  "application/its+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/java-archive": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["jar","war","ear"]
+  },
+  "application/java-serialized-object": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["ser"]
+  },
+  "application/java-vm": {
+    "source": "apache",
+    "compressible": false,
+    "extensions": ["class"]
+  },
+  "application/javascript": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true,
+    "extensions": ["js","mjs"]
+  },
+  "application/jf2feed+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/jose": {
+    "source": "iana"
+  },
+  "application/jose+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/jrd+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/json": {
+    "source": "iana",
+    "charset": "UTF-8",
+    "compressible": true,
+    "extensions": ["json","map"]
+  },
+  "application/json-patch+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/json-seq": {
+    "source": "iana"
+  },
+  "application/json5": {
+    "extensions": ["json5"]
+  },
+  "application/jsonml+json": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["jsonml"]
+  },
+  "application/jwk+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/jwk-set+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/jwt": {
+    "source": "iana"
+  },
+  "application/kpml-request+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/kpml-response+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/ld+json": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["jsonld"]
+  },
+  "application/lgr+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/link-format": {
+    "source": "iana"
+  },
+  "application/load-control+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/lost+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["lostxml"]
+  },
+  "application/lostsync+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/lxf": {
+    "source": "iana"
+  },
+  "application/mac-binhex40": {
+    "source": "iana",
+    "extensions": ["hqx"]
+  },
+  "application/mac-compactpro": {
+    "source": "apache",
+    "extensions": ["cpt"]
+  },
+  "application/macwriteii": {
+    "source": "iana"
+  },
+  "application/mads+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mads"]
+  },
+  "application/manifest+json": {
+    "charset": "UTF-8",
+    "compressible": true,
+    "extensions": ["webmanifest"]
+  },
+  "application/marc": {
+    "source": "iana",
+    "extensions": ["mrc"]
+  },
+  "application/marcxml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mrcx"]
+  },
+  "application/mathematica": {
+    "source": "iana",
+    "extensions": ["ma","nb","mb"]
+  },
+  "application/mathml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mathml"]
+  },
+  "application/mathml-content+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mathml-presentation+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-associated-procedure-description+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-deregister+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-envelope+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-msk+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-msk-response+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-protection-description+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-reception-report+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-register+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-register-response+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-schedule+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbms-user-service-description+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mbox": {
+    "source": "iana",
+    "extensions": ["mbox"]
+  },
+  "application/media-policy-dataset+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/media_control+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mediaservercontrol+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mscml"]
+  },
+  "application/merge-patch+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/metalink+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["metalink"]
+  },
+  "application/metalink4+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["meta4"]
+  },
+  "application/mets+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mets"]
+  },
+  "application/mf4": {
+    "source": "iana"
+  },
+  "application/mikey": {
+    "source": "iana"
+  },
+  "application/mmt-usd+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mods+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["mods"]
+  },
+  "application/moss-keys": {
+    "source": "iana"
+  },
+  "application/moss-signature": {
+    "source": "iana"
+  },
+  "application/mosskey-data": {
+    "source": "iana"
+  },
+  "application/mosskey-request": {
+    "source": "iana"
+  },
+  "application/mp21": {
+    "source": "iana",
+    "extensions": ["m21","mp21"]
+  },
+  "application/mp4": {
+    "source": "iana",
+    "extensions": ["mp4s","m4p"]
+  },
+  "application/mpeg4-generic": {
+    "source": "iana"
+  },
+  "application/mpeg4-iod": {
+    "source": "iana"
+  },
+  "application/mpeg4-iod-xmt": {
+    "source": "iana"
+  },
+  "application/mrb-consumer+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mrb-publish+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/msc-ivr+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/msc-mixer+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/msword": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["doc","dot"]
+  },
+  "application/mud+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/mxf": {
+    "source": "iana",
+    "extensions": ["mxf"]
+  },
+  "application/n-quads": {
+    "source": "iana",
+    "extensions": ["nq"]
+  },
+  "application/n-triples": {
+    "source": "iana",
+    "extensions": ["nt"]
+  },
+  "application/nasdata": {
+    "source": "iana"
+  },
+  "application/news-checkgroups": {
+    "source": "iana"
+  },
+  "application/news-groupinfo": {
+    "source": "iana"
+  },
+  "application/news-transmission": {
+    "source": "iana"
+  },
+  "application/nlsml+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/node": {
+    "source": "iana"
+  },
+  "application/nss": {
+    "source": "iana"
+  },
+  "application/ocsp-request": {
+    "source": "iana"
+  },
+  "application/ocsp-response": {
+    "source": "iana"
+  },
+  "application/octet-stream": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["bin","dms","lrf","mar","so","dist","distz","pkg","bpk","dump","elc","deploy","exe","dll","deb","dmg","iso","img","msi","msp","msm","buffer"]
+  },
+  "application/oda": {
+    "source": "iana",
+    "extensions": ["oda"]
+  },
+  "application/odm+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/odx": {
+    "source": "iana"
+  },
+  "application/oebps-package+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["opf"]
+  },
+  "application/ogg": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["ogx"]
+  },
+  "application/omdoc+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["omdoc"]
+  },
+  "application/onenote": {
+    "source": "apache",
+    "extensions": ["onetoc","onetoc2","onetmp","onepkg"]
+  },
+  "application/oxps": {
+    "source": "iana",
+    "extensions": ["oxps"]
+  },
+  "application/p2p-overlay+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/parityfec": {
+    "source": "iana"
+  },
+  "application/passport": {
+    "source": "iana"
+  },
+  "application/patch-ops-error+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xer"]
+  },
+  "application/pdf": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["pdf"]
+  },
+  "application/pdx": {
+    "source": "iana"
+  },
+  "application/pem-certificate-chain": {
+    "source": "iana"
+  },
+  "application/pgp-encrypted": {
+    "source": "iana",
+    "compressible": false,
+    "extensions": ["pgp"]
+  },
+  "application/pgp-keys": {
+    "source": "iana"
+  },
+  "application/pgp-signature": {
+    "source": "iana",
+    "extensions": ["asc","sig"]
+  },
+  "application/pics-rules": {
+    "source": "apache",
+    "extensions": ["prf"]
+  },
+  "application/pidf+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/pidf-diff+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/pkcs10": {
+    "source": "iana",
+    "extensions": ["p10"]
+  },
+  "application/pkcs12": {
+    "source": "iana"
+  },
+  "application/pkcs7-mime": {
+    "source": "iana",
+    "extensions": ["p7m","p7c"]
+  },
+  "application/pkcs7-signature": {
+    "source": "iana",
+    "extensions": ["p7s"]
+  },
+  "application/pkcs8": {
+    "source": "iana",
+    "extensions": ["p8"]
+  },
+  "application/pkcs8-encrypted": {
+    "source": "iana"
+  },
+  "application/pkix-attr-cert": {
+    "source": "iana",
+    "extensions": ["ac"]
+  },
+  "application/pkix-cert": {
+    "source": "iana",
+    "extensions": ["cer"]
+  },
+  "application/pkix-crl": {
+    "source": "iana",
+    "extensions": ["crl"]
+  },
+  "application/pkix-pkipath": {
+    "source": "iana",
+    "extensions": ["pkipath"]
+  },
+  "application/pkixcmp": {
+    "source": "iana",
+    "extensions": ["pki"]
+  },
+  "application/pls+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["pls"]
+  },
+  "application/poc-settings+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/postscript": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["ai","eps","ps"]
+  },
+  "application/ppsp-tracker+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/problem+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/problem+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/provenance+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/prs.alvestrand.titrax-sheet": {
+    "source": "iana"
+  },
+  "application/prs.cww": {
+    "source": "iana",
+    "extensions": ["cww"]
+  },
+  "application/prs.hpub+zip": {
+    "source": "iana",
+    "compressible": false
+  },
+  "application/prs.nprend": {
+    "source": "iana"
+  },
+  "application/prs.plucker": {
+    "source": "iana"
+  },
+  "application/prs.rdf-xml-crypt": {
+    "source": "iana"
+  },
+  "application/prs.xsf+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/pskc+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["pskcxml"]
+  },
+  "application/qsig": {
+    "source": "iana"
+  },
+  "application/raml+yaml": {
+    "compressible": true,
+    "extensions": ["raml"]
+  },
+  "application/raptorfec": {
+    "source": "iana"
+  },
+  "application/rdap+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/rdf+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rdf","owl"]
+  },
+  "application/reginfo+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rif"]
+  },
+  "application/relax-ng-compact-syntax": {
+    "source": "iana",
+    "extensions": ["rnc"]
+  },
+  "application/remote-printing": {
+    "source": "iana"
+  },
+  "application/reputon+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/resource-lists+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rl"]
+  },
+  "application/resource-lists-diff+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rld"]
+  },
+  "application/rfc+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/riscos": {
+    "source": "iana"
+  },
+  "application/rlmi+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/rls-services+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rs"]
+  },
+  "application/route-apd+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/route-s-tsid+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/route-usd+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/rpki-ghostbusters": {
+    "source": "iana",
+    "extensions": ["gbr"]
+  },
+  "application/rpki-manifest": {
+    "source": "iana",
+    "extensions": ["mft"]
+  },
+  "application/rpki-publication": {
+    "source": "iana"
+  },
+  "application/rpki-roa": {
+    "source": "iana",
+    "extensions": ["roa"]
+  },
+  "application/rpki-updown": {
+    "source": "iana"
+  },
+  "application/rsd+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["rsd"]
+  },
+  "application/rss+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["rss"]
+  },
+  "application/rtf": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["rtf"]
+  },
+  "application/rtploopback": {
+    "source": "iana"
+  },
+  "application/rtx": {
+    "source": "iana"
+  },
+  "application/samlassertion+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/samlmetadata+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/sbml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["sbml"]
+  },
+  "application/scaip+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/scim+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/scvp-cv-request": {
+    "source": "iana",
+    "extensions": ["scq"]
+  },
+  "application/scvp-cv-response": {
+    "source": "iana",
+    "extensions": ["scs"]
+  },
+  "application/scvp-vp-request": {
+    "source": "iana",
+    "extensions": ["spq"]
+  },
+  "application/scvp-vp-response": {
+    "source": "iana",
+    "extensions": ["spp"]
+  },
+  "application/sdp": {
+    "source": "iana",
+    "extensions": ["sdp"]
+  },
+  "application/secevent+jwt": {
+    "source": "iana"
+  },
+  "application/senml+cbor": {
+    "source": "iana"
+  },
+  "application/senml+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/senml+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/senml-exi": {
+    "source": "iana"
+  },
+  "application/sensml+cbor": {
+    "source": "iana"
+  },
+  "application/sensml+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/sensml+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/sensml-exi": {
+    "source": "iana"
+  },
+  "application/sep+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/sep-exi": {
+    "source": "iana"
+  },
+  "application/session-info": {
+    "source": "iana"
+  },
+  "application/set-payment": {
+    "source": "iana"
+  },
+  "application/set-payment-initiation": {
+    "source": "iana",
+    "extensions": ["setpay"]
+  },
+  "application/set-registration": {
+    "source": "iana"
+  },
+  "application/set-registration-initiation": {
+    "source": "iana",
+    "extensions": ["setreg"]
+  },
+  "application/sgml": {
+    "source": "iana"
+  },
+  "application/sgml-open-catalog": {
+    "source": "iana"
+  },
+  "application/shf+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["shf"]
+  },
+  "application/sieve": {
+    "source": "iana"
+  },
+  "application/simple-filter+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/simple-message-summary": {
+    "source": "iana"
+  },
+  "application/simplesymbolcontainer": {
+    "source": "iana"
+  },
+  "application/slate": {
+    "source": "iana"
+  },
+  "application/smil": {
+    "source": "iana"
+  },
+  "application/smil+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["smi","smil"]
+  },
+  "application/smpte336m": {
+    "source": "iana"
+  },
+  "application/soap+fastinfoset": {
+    "source": "iana"
+  },
+  "application/soap+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/sparql-query": {
+    "source": "iana",
+    "extensions": ["rq"]
+  },
+  "application/sparql-results+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["srx"]
+  },
+  "application/spirits-event+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/sql": {
+    "source": "iana"
+  },
+  "application/srgs": {
+    "source": "iana",
+    "extensions": ["gram"]
+  },
+  "application/srgs+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["grxml"]
+  },
+  "application/sru+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["sru"]
+  },
+  "application/ssdl+xml": {
+    "source": "apache",
+    "compressible": true,
+    "extensions": ["ssdl"]
+  },
+  "application/ssml+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["ssml"]
+  },
+  "application/stix+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/tamp-apex-update": {
+    "source": "iana"
+  },
+  "application/tamp-apex-update-confirm": {
+    "source": "iana"
+  },
+  "application/tamp-community-update": {
+    "source": "iana"
+  },
+  "application/tamp-community-update-confirm": {
+    "source": "iana"
+  },
+  "application/tamp-error": {
+    "source": "iana"
+  },
+  "application/tamp-sequence-adjust": {
+    "source": "iana"
+  },
+  "application/tamp-sequence-adjust-confirm": {
+    "source": "iana"
+  },
+  "application/tamp-status-query": {
+    "source": "iana"
+  },
+  "application/tamp-status-response": {
+    "source": "iana"
+  },
+  "application/tamp-update": {
+    "source": "iana"
+  },
+  "application/tamp-update-confirm": {
+    "source": "iana"
+  },
+  "application/tar": {
+    "compressible": true
+  },
+  "application/taxii+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/tei+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["tei","teicorpus"]
+  },
+  "application/tetra_isi": {
+    "source": "iana"
+  },
+  "application/thraud+xml": {
+    "source": "iana",
+    "compressible": true,
+    "extensions": ["tfi"]
+  },
+  "application/timestamp-query": {
+    "source": "iana"
+  },
+  "application/timestamp-reply": {
+    "source": "iana"
+  },
+  "application/timestamped-data": {
+    "source": "iana",
+    "extensions": ["tsd"]
+  },
+  "application/tlsrpt+gzip": {
+    "source": "iana"
+  },
+  "application/tlsrpt+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/tnauthlist": {
+    "source": "iana"
+  },
+  "application/trickle-ice-sdpfrag": {
+    "source": "iana"
+  },
+  "application/trig": {
+    "source": "iana"
+  },
+  "application/ttml+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/tve-trigger": {
+    "source": "iana"
+  },
+  "application/tzif": {
+    "source": "iana"
+  },
+  "application/tzif-leap": {
+    "source": "iana"
+  },
+  "application/ulpfec": {
+    "source": "iana"
+  },
+  "application/urc-grpsheet+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/urc-ressheet+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/urc-targetdesc+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/urc-uisocketdesc+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vcard+json": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vcard+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vemmi": {
+    "source": "iana"
+  },
+  "application/vividence.scriptfile": {
+    "source": "apache"
+  },
+  "application/vnd.1000minds.decision-model+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp-prose+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp-prose-pc3ch+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp-v2x-local-service-information": {
+    "source": "iana"
+  },
+  "application/vnd.3gpp.access-transfer-events+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp.bsf+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp.gmop+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp.mc-signalling-ear": {
+    "source": "iana"
+  },
+  "application/vnd.3gpp.mcdata-affiliation-command+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp.mcdata-info+xml": {
+    "source": "iana",
+    "compressible": true
+  },
+  "application/vnd.3gpp.mcdata-payload": {
+    "source": "iana"
+  },
+  "application/vnd.3gpp.mcdata-service-config+xml": {
+    "source": "iana",
+    "compressible": true
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+    "extensions": ["pcf"]
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+    "extensions": ["snf"]
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+    "extensions": ["pfa","pfb","pfm","afm"]
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+    "extensions": ["arc"]
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+    "extensions": ["spl"]
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+    "extensions": ["gca"]
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+    "extensions": ["ulx"]
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+    "extensions": ["gnumeric"]
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+    "extensions": ["gramps"]
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+    "extensions": ["gtar"]
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+    "extensions": ["hdf"]
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+    "extensions": ["php"]
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+    "extensions": ["install"]
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+  "application/x-iso9660-image": {
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+    "extensions": ["iso"]
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+    "extensions": ["jardiff"]
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+    "compressible": false,
+    "extensions": ["jnlp"]
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+  "application/x-javascript": {
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+    "extensions": ["latex"]
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+    "extensions": ["lzh","lha"]
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+    "extensions": ["run"]
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+  "application/x-mie": {
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+    "extensions": ["mie"]
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+  "application/x-mobipocket-ebook": {
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+    "extensions": ["prc","mobi"]
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+    "extensions": ["application"]
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+  "application/x-ms-shortcut": {
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+    "extensions": ["lnk"]
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+    "extensions": ["wmd"]
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+    "extensions": ["xbap"]
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+    "extensions": ["mdb"]
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+    "extensions": ["obd"]
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+  "application/x-mscardfile": {
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+    "extensions": ["crd"]
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+    "extensions": ["clp"]
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+    "extensions": ["mvb","m13","m14"]
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+    "extensions": ["mny"]
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+    "extensions": ["pub"]
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+    "extensions": ["scd"]
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+    "extensions": ["trm"]
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+    "extensions": ["wri"]
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+    "extensions": ["nc","cdf"]
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+    "extensions": ["pac"]
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+  "application/x-nzb": {
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+    "extensions": ["nzb"]
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+    "extensions": ["pl","pm"]
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+  "application/x-pilot": {
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+    "extensions": ["prc","pdb"]
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+    "compressible": false,
+    "extensions": ["p12","pfx"]
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+  "application/x-pkcs7-certificates": {
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+    "extensions": ["p7b","spc"]
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+    "extensions": ["p7r"]
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+    "extensions": ["rar"]
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+    "extensions": ["sh"]
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+    "extensions": ["swf"]
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+    "extensions": ["sit"]
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+    "extensions": ["tar"]
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+    "extensions": ["tcl","tk"]
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+  "application/x-tex": {
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+    "extensions": ["tex"]
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+  "application/x-tex-tfm": {
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+    "extensions": ["obj"]
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+    "extensions": ["webapp"]
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+  "application/x-x509-ca-cert": {
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+    "extensions": ["der","crt","pem"]
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+    "extensions": ["fig"]
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+    "extensions": ["xlf"]
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+    "extensions": ["xpi"]
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+  "application/x-xz": {
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+    "extensions": ["xz"]
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+  "application/x-zmachine": {
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+    "extensions": ["z1","z2","z3","z4","z5","z6","z7","z8"]
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+  "application/x400-bp": {
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+    "compressible": true,
+    "extensions": ["xaml"]
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+    "compressible": true
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+    "compressible": true,
+    "extensions": ["xdf"]
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+    "compressible": true
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+    "compressible": true
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+    "compressible": true
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+    "compressible": true
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+    "compressible": true
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+    "compressible": true,
+    "extensions": ["xenc"]
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+    "source": "iana",
+    "compressible": true,
+    "extensions": ["xhtml","xht"]
+  },
+  "application/xhtml-voice+xml": {
+    "source": "apache",
+    "compressible": true
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+  "application/xliff+xml": {
+    "source": "iana",
+    "compressible": true
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+    "extensions": ["xml","xsl","xsd","rng"]
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+    "compressible": true,
+    "extensions": ["dtd"]
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+  "application/xml-external-parsed-entity": {
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+    "extensions": ["xop"]
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+    "compressible": true,
+    "extensions": ["xpl"]
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+    "compressible": true,
+    "extensions": ["xslt"]
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+    "extensions": ["xspf"]
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+    "extensions": ["mxml","xhvml","xvml","xvm"]
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+    "compressible": true
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+    "compressible": true
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+    "extensions": ["yin"]
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+    "compressible": false,
+    "extensions": ["zip"]
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+    "extensions": ["3gpp"]
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+    "extensions": ["adp"]
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+    "extensions": ["au","snd"]
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+    "extensions": ["mid","midi","kar","rmi"]
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+    "extensions": ["mp3"]
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+    "extensions": ["m4a","mp4a"]
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+    "extensions": ["mpga","mp2","mp2a","mp3","m2a","m3a"]
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+  "audio/musepack": {
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+    "extensions": ["oga","ogg","spx"]
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+    "source": "apache",
+    "extensions": ["smv"]
+  },
+  "x-conference/x-cooltalk": {
+    "source": "apache",
+    "extensions": ["ice"]
+  },
+  "x-shader/x-fragment": {
+    "compressible": true
+  },
+  "x-shader/x-vertex": {
+    "compressible": true
+  }
+}
diff --git a/helloworld/node_modules/mime-db/index.js b/helloworld/node_modules/mime-db/index.js
new file mode 100755
index 0000000..551031f
--- /dev/null
+++ b/helloworld/node_modules/mime-db/index.js
@@ -0,0 +1,11 @@
+/*!
+ * mime-db
+ * Copyright(c) 2014 Jonathan Ong
+ * MIT Licensed
+ */
+
+/**
+ * Module exports.
+ */
+
+module.exports = require('./db.json')
diff --git a/helloworld/node_modules/mime-types/HISTORY.md b/helloworld/node_modules/mime-types/HISTORY.md
new file mode 100755
index 0000000..133399b
--- /dev/null
+++ b/helloworld/node_modules/mime-types/HISTORY.md
@@ -0,0 +1,294 @@
+2.1.22 / 2019-02-14
+===================
+
+  * deps: mime-db@~1.38.0
+    - Add extension `.nq` to `application/n-quads`
+    - Add extension `.nt` to `application/n-triples`
+    - Add new upstream MIME types
+    - Mark `text/less` as compressible
+
+2.1.21 / 2018-10-19
+===================
+
+  * deps: mime-db@~1.37.0
+    - Add extensions to HEIC image types
+    - Add new upstream MIME types
+
+2.1.20 / 2018-08-26
+===================
+
+  * deps: mime-db@~1.36.0
+    - Add Apple file extensions from IANA
+    - Add extensions from IANA for `image/*` types
+    - Add new upstream MIME types
+
+2.1.19 / 2018-07-17
+===================
+
+  * deps: mime-db@~1.35.0
+    - Add extension `.csl` to `application/vnd.citationstyles.style+xml`
+    - Add extension `.es` to `application/ecmascript`
+    - Add extension `.owl` to `application/rdf+xml`
+    - Add new upstream MIME types
+    - Add UTF-8 as default charset for `text/turtle`
+
+2.1.18 / 2018-02-16
+===================
+
+  * deps: mime-db@~1.33.0
+    - Add `application/raml+yaml` with extension `.raml`
+    - Add `application/wasm` with extension `.wasm`
+    - Add `text/shex` with extension `.shex`
+    - Add extensions for JPEG-2000 images
+    - Add extensions from IANA for `message/*` types
+    - Add new upstream MIME types
+    - Update font MIME types
+    - Update `text/hjson` to registered `application/hjson`
+
+2.1.17 / 2017-09-01
+===================
+
+  * deps: mime-db@~1.30.0
+    - Add `application/vnd.ms-outlook`
+    - Add `application/x-arj`
+    - Add extension `.mjs` to `application/javascript`
+    - Add glTF types and extensions
+    - Add new upstream MIME types
+    - Add `text/x-org`
+    - Add VirtualBox MIME types
+    - Fix `source` records for `video/*` types that are IANA
+    - Update `font/opentype` to registered `font/otf`
+
+2.1.16 / 2017-07-24
+===================
+
+  * deps: mime-db@~1.29.0
+    - Add `application/fido.trusted-apps+json`
+    - Add extension `.wadl` to `application/vnd.sun.wadl+xml`
+    - Add extension `.gz` to `application/gzip`
+    - Add new upstream MIME types
+    - Update extensions `.md` and `.markdown` to be `text/markdown`
+
+2.1.15 / 2017-03-23
+===================
+
+  * deps: mime-db@~1.27.0
+    - Add new mime types
+    - Add `image/apng`
+
+2.1.14 / 2017-01-14
+===================
+
+  * deps: mime-db@~1.26.0
+    - Add new mime types
+
+2.1.13 / 2016-11-18
+===================
+
+  * deps: mime-db@~1.25.0
+    - Add new mime types
+
+2.1.12 / 2016-09-18
+===================
+
+  * deps: mime-db@~1.24.0
+    - Add new mime types
+    - Add `audio/mp3`
+
+2.1.11 / 2016-05-01
+===================
+
+  * deps: mime-db@~1.23.0
+    - Add new mime types
+
+2.1.10 / 2016-02-15
+===================
+
+  * deps: mime-db@~1.22.0
+    - Add new mime types
+    - Fix extension of `application/dash+xml`
+    - Update primary extension for `audio/mp4`
+
+2.1.9 / 2016-01-06
+==================
+
+  * deps: mime-db@~1.21.0
+    - Add new mime types
+
+2.1.8 / 2015-11-30
+==================
+
+  * deps: mime-db@~1.20.0
+    - Add new mime types
+
+2.1.7 / 2015-09-20
+==================
+
+  * deps: mime-db@~1.19.0
+    - Add new mime types
+
+2.1.6 / 2015-09-03
+==================
+
+  * deps: mime-db@~1.18.0
+    - Add new mime types
+
+2.1.5 / 2015-08-20
+==================
+
+  * deps: mime-db@~1.17.0
+    - Add new mime types
+
+2.1.4 / 2015-07-30
+==================
+
+  * deps: mime-db@~1.16.0
+    - Add new mime types
+
+2.1.3 / 2015-07-13
+==================
+
+  * deps: mime-db@~1.15.0
+    - Add new mime types
+
+2.1.2 / 2015-06-25
+==================
+
+  * deps: mime-db@~1.14.0
+    - Add new mime types
+
+2.1.1 / 2015-06-08
+==================
+
+  * perf: fix deopt during mapping
+
+2.1.0 / 2015-06-07
+==================
+
+  * Fix incorrectly treating extension-less file name as extension
+    - i.e. `'path/to/json'` will no longer return `application/json`
+  * Fix `.charset(type)` to accept parameters
+  * Fix `.charset(type)` to match case-insensitive
+  * Improve generation of extension to MIME mapping
+  * Refactor internals for readability and no argument reassignment
+  * Prefer `application/*` MIME types from the same source
+  * Prefer any type over `application/octet-stream`
+  * deps: mime-db@~1.13.0
+    - Add nginx as a source
+    - Add new mime types
+
+2.0.14 / 2015-06-06
+===================
+
+  * deps: mime-db@~1.12.0
+    - Add new mime types
+
+2.0.13 / 2015-05-31
+===================
+
+  * deps: mime-db@~1.11.0
+    - Add new mime types
+
+2.0.12 / 2015-05-19
+===================
+
+  * deps: mime-db@~1.10.0
+    - Add new mime types
+
+2.0.11 / 2015-05-05
+===================
+
+  * deps: mime-db@~1.9.1
+    - Add new mime types
+
+2.0.10 / 2015-03-13
+===================
+
+  * deps: mime-db@~1.8.0
+    - Add new mime types
+
+2.0.9 / 2015-02-09
+==================
+
+  * deps: mime-db@~1.7.0
+    - Add new mime types
+    - Community extensions ownership transferred from `node-mime`
+
+2.0.8 / 2015-01-29
+==================
+
+  * deps: mime-db@~1.6.0
+    - Add new mime types
+
+2.0.7 / 2014-12-30
+==================
+
+  * deps: mime-db@~1.5.0
+    - Add new mime types
+    - Fix various invalid MIME type entries
+
+2.0.6 / 2014-12-30
+==================
+
+  * deps: mime-db@~1.4.0
+    - Add new mime types
+    - Fix various invalid MIME type entries
+    - Remove example template MIME types
+
+2.0.5 / 2014-12-29
+==================
+
+  * deps: mime-db@~1.3.1
+    - Fix missing extensions
+
+2.0.4 / 2014-12-10
+==================
+
+  * deps: mime-db@~1.3.0
+    - Add new mime types
+
+2.0.3 / 2014-11-09
+==================
+
+  * deps: mime-db@~1.2.0
+    - Add new mime types
+
+2.0.2 / 2014-09-28
+==================
+
+  * deps: mime-db@~1.1.0
+    - Add new mime types
+    - Add additional compressible
+    - Update charsets
+
+2.0.1 / 2014-09-07
+==================
+
+  * Support Node.js 0.6
+
+2.0.0 / 2014-09-02
+==================
+
+  * Use `mime-db`
+  * Remove `.define()`
+
+1.0.2 / 2014-08-04
+==================
+
+  * Set charset=utf-8 for `text/javascript`
+
+1.0.1 / 2014-06-24
+==================
+
+  * Add `text/jsx` type
+
+1.0.0 / 2014-05-12
+==================
+
+  * Return `false` for unknown types
+  * Set charset=utf-8 for `application/json`
+
+0.1.0 / 2014-05-02
+==================
+
+  * Initial release
diff --git a/helloworld/node_modules/mime-types/LICENSE b/helloworld/node_modules/mime-types/LICENSE
new file mode 100755
index 0000000..0616607
--- /dev/null
+++ b/helloworld/node_modules/mime-types/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/mime-types/README.md b/helloworld/node_modules/mime-types/README.md
new file mode 100755
index 0000000..1dbef2b
--- /dev/null
+++ b/helloworld/node_modules/mime-types/README.md
@@ -0,0 +1,113 @@
+# mime-types
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+The ultimate javascript content-type utility.
+
+Similar to [the `mime@1.x` module](https://www.npmjs.com/package/mime), except:
+
+- __No fallbacks.__ Instead of naively returning the first available type,
+  `mime-types` simply returns `false`, so do
+  `var type = mime.lookup('unrecognized') || 'application/octet-stream'`.
+- No `new Mime()` business, so you could do `var lookup = require('mime-types').lookup`.
+- No `.define()` functionality
+- Bug fixes for `.lookup(path)`
+
+Otherwise, the API is compatible with `mime` 1.x.
+
+## Install
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install mime-types
+```
+
+## Adding Types
+
+All mime types are based on [mime-db](https://www.npmjs.com/package/mime-db),
+so open a PR there if you'd like to add mime types.
+
+## API
+
+```js
+var mime = require('mime-types')
+```
+
+All functions return `false` if input is invalid or not found.
+
+### mime.lookup(path)
+
+Lookup the content-type associated with a file.
+
+```js
+mime.lookup('json')             // 'application/json'
+mime.lookup('.md')              // 'text/markdown'
+mime.lookup('file.html')        // 'text/html'
+mime.lookup('folder/file.js')   // 'application/javascript'
+mime.lookup('folder/.htaccess') // false
+
+mime.lookup('cats') // false
+```
+
+### mime.contentType(type)
+
+Create a full content-type header given a content-type or extension.
+When given an extension, `mime.lookup` is used to get the matching
+content-type, otherwise the given content-type is used. Then if the
+content-type does not already have a `charset` parameter, `mime.charset`
+is used to get the default charset and add to the returned content-type.
+
+```js
+mime.contentType('markdown')  // 'text/x-markdown; charset=utf-8'
+mime.contentType('file.json') // 'application/json; charset=utf-8'
+mime.contentType('text/html') // 'text/html; charset=utf-8'
+mime.contentType('text/html; charset=iso-8859-1') // 'text/html; charset=iso-8859-1'
+
+// from a full path
+mime.contentType(path.extname('/path/to/file.json')) // 'application/json; charset=utf-8'
+```
+
+### mime.extension(type)
+
+Get the default extension for a content-type.
+
+```js
+mime.extension('application/octet-stream') // 'bin'
+```
+
+### mime.charset(type)
+
+Lookup the implied default charset of a content-type.
+
+```js
+mime.charset('text/markdown') // 'UTF-8'
+```
+
+### var type = mime.types[extension]
+
+A map of content-types by extension.
+
+### [extensions...] = mime.extensions[type]
+
+A map of extensions by content-type.
+
+## License
+
+[MIT](LICENSE)
+
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/mime-types/master
+[coveralls-url]: https://coveralls.io/r/jshttp/mime-types?branch=master
+[node-version-image]: https://badgen.net/npm/node/mime-types
+[node-version-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/mime-types
+[npm-url]: https://npmjs.org/package/mime-types
+[npm-version-image]: https://badgen.net/npm/v/mime-types
+[travis-image]: https://badgen.net/travis/jshttp/mime-types/master
+[travis-url]: https://travis-ci.org/jshttp/mime-types
diff --git a/helloworld/node_modules/mime-types/index.js b/helloworld/node_modules/mime-types/index.js
new file mode 100755
index 0000000..b9f34d5
--- /dev/null
+++ b/helloworld/node_modules/mime-types/index.js
@@ -0,0 +1,188 @@
+/*!
+ * mime-types
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var db = require('mime-db')
+var extname = require('path').extname
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var EXTRACT_TYPE_REGEXP = /^\s*([^;\s]*)(?:;|\s|$)/
+var TEXT_TYPE_REGEXP = /^text\//i
+
+/**
+ * Module exports.
+ * @public
+ */
+
+exports.charset = charset
+exports.charsets = { lookup: charset }
+exports.contentType = contentType
+exports.extension = extension
+exports.extensions = Object.create(null)
+exports.lookup = lookup
+exports.types = Object.create(null)
+
+// Populate the extensions/types maps
+populateMaps(exports.extensions, exports.types)
+
+/**
+ * Get the default charset for a MIME type.
+ *
+ * @param {string} type
+ * @return {boolean|string}
+ */
+
+function charset (type) {
+  if (!type || typeof type !== 'string') {
+    return false
+  }
+
+  // TODO: use media-typer
+  var match = EXTRACT_TYPE_REGEXP.exec(type)
+  var mime = match && db[match[1].toLowerCase()]
+
+  if (mime && mime.charset) {
+    return mime.charset
+  }
+
+  // default text/* to utf-8
+  if (match && TEXT_TYPE_REGEXP.test(match[1])) {
+    return 'UTF-8'
+  }
+
+  return false
+}
+
+/**
+ * Create a full Content-Type header given a MIME type or extension.
+ *
+ * @param {string} str
+ * @return {boolean|string}
+ */
+
+function contentType (str) {
+  // TODO: should this even be in this module?
+  if (!str || typeof str !== 'string') {
+    return false
+  }
+
+  var mime = str.indexOf('/') === -1
+    ? exports.lookup(str)
+    : str
+
+  if (!mime) {
+    return false
+  }
+
+  // TODO: use content-type or other module
+  if (mime.indexOf('charset') === -1) {
+    var charset = exports.charset(mime)
+    if (charset) mime += '; charset=' + charset.toLowerCase()
+  }
+
+  return mime
+}
+
+/**
+ * Get the default extension for a MIME type.
+ *
+ * @param {string} type
+ * @return {boolean|string}
+ */
+
+function extension (type) {
+  if (!type || typeof type !== 'string') {
+    return false
+  }
+
+  // TODO: use media-typer
+  var match = EXTRACT_TYPE_REGEXP.exec(type)
+
+  // get extensions
+  var exts = match && exports.extensions[match[1].toLowerCase()]
+
+  if (!exts || !exts.length) {
+    return false
+  }
+
+  return exts[0]
+}
+
+/**
+ * Lookup the MIME type for a file path/extension.
+ *
+ * @param {string} path
+ * @return {boolean|string}
+ */
+
+function lookup (path) {
+  if (!path || typeof path !== 'string') {
+    return false
+  }
+
+  // get the extension ("ext" or ".ext" or full path)
+  var extension = extname('x.' + path)
+    .toLowerCase()
+    .substr(1)
+
+  if (!extension) {
+    return false
+  }
+
+  return exports.types[extension] || false
+}
+
+/**
+ * Populate the extensions and types maps.
+ * @private
+ */
+
+function populateMaps (extensions, types) {
+  // source preference (least -> most)
+  var preference = ['nginx', 'apache', undefined, 'iana']
+
+  Object.keys(db).forEach(function forEachMimeType (type) {
+    var mime = db[type]
+    var exts = mime.extensions
+
+    if (!exts || !exts.length) {
+      return
+    }
+
+    // mime -> extensions
+    extensions[type] = exts
+
+    // extension -> mime
+    for (var i = 0; i < exts.length; i++) {
+      var extension = exts[i]
+
+      if (types[extension]) {
+        var from = preference.indexOf(db[types[extension]].source)
+        var to = preference.indexOf(mime.source)
+
+        if (types[extension] !== 'application/octet-stream' &&
+          (from > to || (from === to && types[extension].substr(0, 12) === 'application/'))) {
+          // skip the remapping
+          continue
+        }
+      }
+
+      // set the extension -> mime
+      types[extension] = type
+    }
+  })
+}
diff --git a/helloworld/node_modules/mimic-response/index.js b/helloworld/node_modules/mimic-response/index.js
new file mode 100755
index 0000000..d5e33be
--- /dev/null
+++ b/helloworld/node_modules/mimic-response/index.js
@@ -0,0 +1,32 @@
+'use strict';
+
+// We define these manually to ensure they're always copied
+// even if they would move up the prototype chain
+// https://nodejs.org/api/http.html#http_class_http_incomingmessage
+const knownProps = [
+	'destroy',
+	'setTimeout',
+	'socket',
+	'headers',
+	'trailers',
+	'rawHeaders',
+	'statusCode',
+	'httpVersion',
+	'httpVersionMinor',
+	'httpVersionMajor',
+	'rawTrailers',
+	'statusMessage'
+];
+
+module.exports = (fromStream, toStream) => {
+	const fromProps = new Set(Object.keys(fromStream).concat(knownProps));
+
+	for (const prop of fromProps) {
+		// Don't overwrite existing properties
+		if (prop in toStream) {
+			continue;
+		}
+
+		toStream[prop] = typeof fromStream[prop] === 'function' ? fromStream[prop].bind(fromStream) : fromStream[prop];
+	}
+};
diff --git a/helloworld/node_modules/mimic-response/license b/helloworld/node_modules/mimic-response/license
new file mode 100755
index 0000000..e7af2f7
--- /dev/null
+++ b/helloworld/node_modules/mimic-response/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/mimic-response/readme.md b/helloworld/node_modules/mimic-response/readme.md
new file mode 100755
index 0000000..e07ec66
--- /dev/null
+++ b/helloworld/node_modules/mimic-response/readme.md
@@ -0,0 +1,54 @@
+# mimic-response [![Build Status](https://travis-ci.org/sindresorhus/mimic-response.svg?branch=master)](https://travis-ci.org/sindresorhus/mimic-response)
+
+> Mimic a [Node.js HTTP response stream](https://nodejs.org/api/http.html#http_class_http_incomingmessage)
+
+
+## Install
+
+```
+$ npm install mimic-response
+```
+
+
+## Usage
+
+```js
+const stream = require('stream');
+const mimicResponse = require('mimic-response');
+
+const responseStream = getHttpResponseStream();
+const myStream = new stream.PassThrough();
+
+mimicResponse(responseStream, myStream);
+
+console.log(myStream.statusCode);
+//=> 200
+```
+
+
+## API
+
+### mimicResponse(from, to)
+
+#### from
+
+Type: `Stream`
+
+[Node.js HTTP response stream.](https://nodejs.org/api/http.html#http_class_http_incomingmessage)
+
+#### to
+
+Type: `Stream`
+
+Any stream.
+
+
+## Related
+
+- [mimic-fn](https://github.com/sindresorhus/mimic-fn) - Make a function mimic another one
+- [clone-response](https://github.com/lukechilds/clone-response) - Clone a Node.js response stream
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/helloworld/node_modules/ms/index.js b/helloworld/node_modules/ms/index.js
new file mode 100755
index 0000000..7229750
--- /dev/null
+++ b/helloworld/node_modules/ms/index.js
@@ -0,0 +1,162 @@
+/**
+ * Helpers.
+ */
+
+var s = 1000;
+var m = s * 60;
+var h = m * 60;
+var d = h * 24;
+var w = d * 7;
+var y = d * 365.25;
+
+/**
+ * Parse or format the given `val`.
+ *
+ * Options:
+ *
+ *  - `long` verbose formatting [false]
+ *
+ * @param {String|Number} val
+ * @param {Object} [options]
+ * @throws {Error} throw an error if val is not a non-empty string or a number
+ * @return {String|Number}
+ * @api public
+ */
+
+module.exports = function(val, options) {
+  options = options || {};
+  var type = typeof val;
+  if (type === 'string' && val.length > 0) {
+    return parse(val);
+  } else if (type === 'number' && isNaN(val) === false) {
+    return options.long ? fmtLong(val) : fmtShort(val);
+  }
+  throw new Error(
+    'val is not a non-empty string or a valid number. val=' +
+      JSON.stringify(val)
+  );
+};
+
+/**
+ * Parse the given `str` and return milliseconds.
+ *
+ * @param {String} str
+ * @return {Number}
+ * @api private
+ */
+
+function parse(str) {
+  str = String(str);
+  if (str.length > 100) {
+    return;
+  }
+  var match = /^((?:\d+)?\-?\d?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(
+    str
+  );
+  if (!match) {
+    return;
+  }
+  var n = parseFloat(match[1]);
+  var type = (match[2] || 'ms').toLowerCase();
+  switch (type) {
+    case 'years':
+    case 'year':
+    case 'yrs':
+    case 'yr':
+    case 'y':
+      return n * y;
+    case 'weeks':
+    case 'week':
+    case 'w':
+      return n * w;
+    case 'days':
+    case 'day':
+    case 'd':
+      return n * d;
+    case 'hours':
+    case 'hour':
+    case 'hrs':
+    case 'hr':
+    case 'h':
+      return n * h;
+    case 'minutes':
+    case 'minute':
+    case 'mins':
+    case 'min':
+    case 'm':
+      return n * m;
+    case 'seconds':
+    case 'second':
+    case 'secs':
+    case 'sec':
+    case 's':
+      return n * s;
+    case 'milliseconds':
+    case 'millisecond':
+    case 'msecs':
+    case 'msec':
+    case 'ms':
+      return n;
+    default:
+      return undefined;
+  }
+}
+
+/**
+ * Short format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtShort(ms) {
+  var msAbs = Math.abs(ms);
+  if (msAbs >= d) {
+    return Math.round(ms / d) + 'd';
+  }
+  if (msAbs >= h) {
+    return Math.round(ms / h) + 'h';
+  }
+  if (msAbs >= m) {
+    return Math.round(ms / m) + 'm';
+  }
+  if (msAbs >= s) {
+    return Math.round(ms / s) + 's';
+  }
+  return ms + 'ms';
+}
+
+/**
+ * Long format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtLong(ms) {
+  var msAbs = Math.abs(ms);
+  if (msAbs >= d) {
+    return plural(ms, msAbs, d, 'day');
+  }
+  if (msAbs >= h) {
+    return plural(ms, msAbs, h, 'hour');
+  }
+  if (msAbs >= m) {
+    return plural(ms, msAbs, m, 'minute');
+  }
+  if (msAbs >= s) {
+    return plural(ms, msAbs, s, 'second');
+  }
+  return ms + ' ms';
+}
+
+/**
+ * Pluralization helper.
+ */
+
+function plural(ms, msAbs, n, name) {
+  var isPlural = msAbs >= n * 1.5;
+  return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
+}
diff --git a/helloworld/node_modules/ms/license.md b/helloworld/node_modules/ms/license.md
new file mode 100755
index 0000000..69b6125
--- /dev/null
+++ b/helloworld/node_modules/ms/license.md
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Zeit, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/helloworld/node_modules/ms/readme.md b/helloworld/node_modules/ms/readme.md
new file mode 100755
index 0000000..bb76729
--- /dev/null
+++ b/helloworld/node_modules/ms/readme.md
@@ -0,0 +1,60 @@
+# ms
+
+[![Build Status](https://travis-ci.org/zeit/ms.svg?branch=master)](https://travis-ci.org/zeit/ms)
+[![Slack Channel](http://zeit-slackin.now.sh/badge.svg)](https://zeit.chat/)
+
+Use this package to easily convert various time formats to milliseconds.
+
+## Examples
+
+```js
+ms('2 days')  // 172800000
+ms('1d')      // 86400000
+ms('10h')     // 36000000
+ms('2.5 hrs') // 9000000
+ms('2h')      // 7200000
+ms('1m')      // 60000
+ms('5s')      // 5000
+ms('1y')      // 31557600000
+ms('100')     // 100
+ms('-3 days') // -259200000
+ms('-1h')     // -3600000
+ms('-200')    // -200
+```
+
+### Convert from Milliseconds
+
+```js
+ms(60000)             // "1m"
+ms(2 * 60000)         // "2m"
+ms(-3 * 60000)        // "-3m"
+ms(ms('10 hours'))    // "10h"
+```
+
+### Time Format Written-Out
+
+```js
+ms(60000, { long: true })             // "1 minute"
+ms(2 * 60000, { long: true })         // "2 minutes"
+ms(-3 * 60000, { long: true })        // "-3 minutes"
+ms(ms('10 hours'), { long: true })    // "10 hours"
+```
+
+## Features
+
+- Works both in [Node.js](https://nodejs.org) and in the browser
+- If a number is supplied to `ms`, a string with a unit is returned
+- If a string that contains the number is supplied, it returns it as a number (e.g.: it returns `100` for `'100'`)
+- If you pass a string with a number and a valid unit, the number of equivalent milliseconds is returned
+
+## Related Packages
+
+- [ms.macro](https://github.com/knpwrs/ms.macro) - Run `ms` as a macro at build-time.
+
+## Caught a Bug?
+
+1. [Fork](https://help.github.com/articles/fork-a-repo/) this repository to your own GitHub account and then [clone](https://help.github.com/articles/cloning-a-repository/) it to your local device
+2. Link the package to the global module directory: `npm link`
+3. Within the module you want to test your local development instance of ms, just link it to the dependencies: `npm link ms`. Instead of the default one from npm, Node.js will now use your clone of ms!
+
+As always, you can run the tests using: `npm test`
diff --git a/helloworld/node_modules/negotiator/HISTORY.md b/helloworld/node_modules/negotiator/HISTORY.md
new file mode 100755
index 0000000..10b6917
--- /dev/null
+++ b/helloworld/node_modules/negotiator/HISTORY.md
@@ -0,0 +1,98 @@
+0.6.1 / 2016-05-02
+==================
+
+  * perf: improve `Accept` parsing speed
+  * perf: improve `Accept-Charset` parsing speed
+  * perf: improve `Accept-Encoding` parsing speed
+  * perf: improve `Accept-Language` parsing speed
+
+0.6.0 / 2015-09-29
+==================
+
+  * Fix including type extensions in parameters in `Accept` parsing
+  * Fix parsing `Accept` parameters with quoted equals
+  * Fix parsing `Accept` parameters with quoted semicolons
+  * Lazy-load modules from main entry point
+  * perf: delay type concatenation until needed
+  * perf: enable strict mode
+  * perf: hoist regular expressions
+  * perf: remove closures getting spec properties
+  * perf: remove a closure from media type parsing
+  * perf: remove property delete from media type parsing
+
+0.5.3 / 2015-05-10
+==================
+
+  * Fix media type parameter matching to be case-insensitive
+
+0.5.2 / 2015-05-06
+==================
+
+  * Fix comparing media types with quoted values
+  * Fix splitting media types with quoted commas
+
+0.5.1 / 2015-02-14
+==================
+
+  * Fix preference sorting to be stable for long acceptable lists
+
+0.5.0 / 2014-12-18
+==================
+
+  * Fix list return order when large accepted list
+  * Fix missing identity encoding when q=0 exists
+  * Remove dynamic building of Negotiator class
+
+0.4.9 / 2014-10-14
+==================
+
+  * Fix error when media type has invalid parameter
+
+0.4.8 / 2014-09-28
+==================
+
+  * Fix all negotiations to be case-insensitive
+  * Stable sort preferences of same quality according to client order
+  * Support Node.js 0.6
+
+0.4.7 / 2014-06-24
+==================
+
+  * Handle invalid provided languages
+  * Handle invalid provided media types
+
+0.4.6 / 2014-06-11
+==================
+
+  *  Order by specificity when quality is the same
+
+0.4.5 / 2014-05-29
+==================
+
+  * Fix regression in empty header handling
+
+0.4.4 / 2014-05-29
+==================
+
+  * Fix behaviors when headers are not present
+
+0.4.3 / 2014-04-16
+==================
+
+  * Handle slashes on media params correctly
+
+0.4.2 / 2014-02-28
+==================
+
+  * Fix media type sorting
+  * Handle media types params strictly
+
+0.4.1 / 2014-01-16
+==================
+
+  * Use most specific matches
+
+0.4.0 / 2014-01-09
+==================
+
+  * Remove preferred prefix from methods
diff --git a/helloworld/node_modules/negotiator/LICENSE b/helloworld/node_modules/negotiator/LICENSE
new file mode 100755
index 0000000..ea6b9e2
--- /dev/null
+++ b/helloworld/node_modules/negotiator/LICENSE
@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2012-2014 Federico Romero
+Copyright (c) 2012-2014 Isaac Z. Schlueter
+Copyright (c) 2014-2015 Douglas Christopher Wilson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/negotiator/README.md b/helloworld/node_modules/negotiator/README.md
new file mode 100755
index 0000000..04a67ff
--- /dev/null
+++ b/helloworld/node_modules/negotiator/README.md
@@ -0,0 +1,203 @@
+# negotiator
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+An HTTP content negotiator for Node.js
+
+## Installation
+
+```sh
+$ npm install negotiator
+```
+
+## API
+
+```js
+var Negotiator = require('negotiator')
+```
+
+### Accept Negotiation
+
+```js
+availableMediaTypes = ['text/html', 'text/plain', 'application/json']
+
+// The negotiator constructor receives a request object
+negotiator = new Negotiator(request)
+
+// Let's say Accept header is 'text/html, application/*;q=0.2, image/jpeg;q=0.8'
+
+negotiator.mediaTypes()
+// -> ['text/html', 'image/jpeg', 'application/*']
+
+negotiator.mediaTypes(availableMediaTypes)
+// -> ['text/html', 'application/json']
+
+negotiator.mediaType(availableMediaTypes)
+// -> 'text/html'
+```
+
+You can check a working example at `examples/accept.js`.
+
+#### Methods
+
+##### mediaType()
+
+Returns the most preferred media type from the client.
+
+##### mediaType(availableMediaType)
+
+Returns the most preferred media type from a list of available media types.
+
+##### mediaTypes()
+
+Returns an array of preferred media types ordered by the client preference.
+
+##### mediaTypes(availableMediaTypes)
+
+Returns an array of preferred media types ordered by priority from a list of
+available media types.
+
+### Accept-Language Negotiation
+
+```js
+negotiator = new Negotiator(request)
+
+availableLanguages = ['en', 'es', 'fr']
+
+// Let's say Accept-Language header is 'en;q=0.8, es, pt'
+
+negotiator.languages()
+// -> ['es', 'pt', 'en']
+
+negotiator.languages(availableLanguages)
+// -> ['es', 'en']
+
+language = negotiator.language(availableLanguages)
+// -> 'es'
+```
+
+You can check a working example at `examples/language.js`.
+
+#### Methods
+
+##### language()
+
+Returns the most preferred language from the client.
+
+##### language(availableLanguages)
+
+Returns the most preferred language from a list of available languages.
+
+##### languages()
+
+Returns an array of preferred languages ordered by the client preference.
+
+##### languages(availableLanguages)
+
+Returns an array of preferred languages ordered by priority from a list of
+available languages.
+
+### Accept-Charset Negotiation
+
+```js
+availableCharsets = ['utf-8', 'iso-8859-1', 'iso-8859-5']
+
+negotiator = new Negotiator(request)
+
+// Let's say Accept-Charset header is 'utf-8, iso-8859-1;q=0.8, utf-7;q=0.2'
+
+negotiator.charsets()
+// -> ['utf-8', 'iso-8859-1', 'utf-7']
+
+negotiator.charsets(availableCharsets)
+// -> ['utf-8', 'iso-8859-1']
+
+negotiator.charset(availableCharsets)
+// -> 'utf-8'
+```
+
+You can check a working example at `examples/charset.js`.
+
+#### Methods
+
+##### charset()
+
+Returns the most preferred charset from the client.
+
+##### charset(availableCharsets)
+
+Returns the most preferred charset from a list of available charsets.
+
+##### charsets()
+
+Returns an array of preferred charsets ordered by the client preference.
+
+##### charsets(availableCharsets)
+
+Returns an array of preferred charsets ordered by priority from a list of
+available charsets.
+
+### Accept-Encoding Negotiation
+
+```js
+availableEncodings = ['identity', 'gzip']
+
+negotiator = new Negotiator(request)
+
+// Let's say Accept-Encoding header is 'gzip, compress;q=0.2, identity;q=0.5'
+
+negotiator.encodings()
+// -> ['gzip', 'identity', 'compress']
+
+negotiator.encodings(availableEncodings)
+// -> ['gzip', 'identity']
+
+negotiator.encoding(availableEncodings)
+// -> 'gzip'
+```
+
+You can check a working example at `examples/encoding.js`.
+
+#### Methods
+
+##### encoding()
+
+Returns the most preferred encoding from the client.
+
+##### encoding(availableEncodings)
+
+Returns the most preferred encoding from a list of available encodings.
+
+##### encodings()
+
+Returns an array of preferred encodings ordered by the client preference.
+
+##### encodings(availableEncodings)
+
+Returns an array of preferred encodings ordered by priority from a list of
+available encodings.
+
+## See Also
+
+The [accepts](https://npmjs.org/package/accepts#readme) module builds on
+this module and provides an alternative interface, mime type validation,
+and more.
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/negotiator.svg
+[npm-url]: https://npmjs.org/package/negotiator
+[node-version-image]: https://img.shields.io/node/v/negotiator.svg
+[node-version-url]: https://nodejs.org/en/download/
+[travis-image]: https://img.shields.io/travis/jshttp/negotiator/master.svg
+[travis-url]: https://travis-ci.org/jshttp/negotiator
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/negotiator/master.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/negotiator?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/negotiator.svg
+[downloads-url]: https://npmjs.org/package/negotiator
diff --git a/helloworld/node_modules/negotiator/index.js b/helloworld/node_modules/negotiator/index.js
new file mode 100755
index 0000000..8d4f6a2
--- /dev/null
+++ b/helloworld/node_modules/negotiator/index.js
@@ -0,0 +1,124 @@
+/*!
+ * negotiator
+ * Copyright(c) 2012 Federico Romero
+ * Copyright(c) 2012-2014 Isaac Z. Schlueter
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Cached loaded submodules.
+ * @private
+ */
+
+var modules = Object.create(null);
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = Negotiator;
+module.exports.Negotiator = Negotiator;
+
+/**
+ * Create a Negotiator instance from a request.
+ * @param {object} request
+ * @public
+ */
+
+function Negotiator(request) {
+  if (!(this instanceof Negotiator)) {
+    return new Negotiator(request);
+  }
+
+  this.request = request;
+}
+
+Negotiator.prototype.charset = function charset(available) {
+  var set = this.charsets(available);
+  return set && set[0];
+};
+
+Negotiator.prototype.charsets = function charsets(available) {
+  var preferredCharsets = loadModule('charset').preferredCharsets;
+  return preferredCharsets(this.request.headers['accept-charset'], available);
+};
+
+Negotiator.prototype.encoding = function encoding(available) {
+  var set = this.encodings(available);
+  return set && set[0];
+};
+
+Negotiator.prototype.encodings = function encodings(available) {
+  var preferredEncodings = loadModule('encoding').preferredEncodings;
+  return preferredEncodings(this.request.headers['accept-encoding'], available);
+};
+
+Negotiator.prototype.language = function language(available) {
+  var set = this.languages(available);
+  return set && set[0];
+};
+
+Negotiator.prototype.languages = function languages(available) {
+  var preferredLanguages = loadModule('language').preferredLanguages;
+  return preferredLanguages(this.request.headers['accept-language'], available);
+};
+
+Negotiator.prototype.mediaType = function mediaType(available) {
+  var set = this.mediaTypes(available);
+  return set && set[0];
+};
+
+Negotiator.prototype.mediaTypes = function mediaTypes(available) {
+  var preferredMediaTypes = loadModule('mediaType').preferredMediaTypes;
+  return preferredMediaTypes(this.request.headers.accept, available);
+};
+
+// Backwards compatibility
+Negotiator.prototype.preferredCharset = Negotiator.prototype.charset;
+Negotiator.prototype.preferredCharsets = Negotiator.prototype.charsets;
+Negotiator.prototype.preferredEncoding = Negotiator.prototype.encoding;
+Negotiator.prototype.preferredEncodings = Negotiator.prototype.encodings;
+Negotiator.prototype.preferredLanguage = Negotiator.prototype.language;
+Negotiator.prototype.preferredLanguages = Negotiator.prototype.languages;
+Negotiator.prototype.preferredMediaType = Negotiator.prototype.mediaType;
+Negotiator.prototype.preferredMediaTypes = Negotiator.prototype.mediaTypes;
+
+/**
+ * Load the given module.
+ * @private
+ */
+
+function loadModule(moduleName) {
+  var module = modules[moduleName];
+
+  if (module !== undefined) {
+    return module;
+  }
+
+  // This uses a switch for static require analysis
+  switch (moduleName) {
+    case 'charset':
+      module = require('./lib/charset');
+      break;
+    case 'encoding':
+      module = require('./lib/encoding');
+      break;
+    case 'language':
+      module = require('./lib/language');
+      break;
+    case 'mediaType':
+      module = require('./lib/mediaType');
+      break;
+    default:
+      throw new Error('Cannot find module \'' + moduleName + '\'');
+  }
+
+  // Store to prevent invoking require()
+  modules[moduleName] = module;
+
+  return module;
+}
diff --git a/helloworld/node_modules/negotiator/lib/charset.js b/helloworld/node_modules/negotiator/lib/charset.js
new file mode 100755
index 0000000..ac4217b
--- /dev/null
+++ b/helloworld/node_modules/negotiator/lib/charset.js
@@ -0,0 +1,169 @@
+/**
+ * negotiator
+ * Copyright(c) 2012 Isaac Z. Schlueter
+ * Copyright(c) 2014 Federico Romero
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = preferredCharsets;
+module.exports.preferredCharsets = preferredCharsets;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var simpleCharsetRegExp = /^\s*([^\s;]+)\s*(?:;(.*))?$/;
+
+/**
+ * Parse the Accept-Charset header.
+ * @private
+ */
+
+function parseAcceptCharset(accept) {
+  var accepts = accept.split(',');
+
+  for (var i = 0, j = 0; i < accepts.length; i++) {
+    var charset = parseCharset(accepts[i].trim(), i);
+
+    if (charset) {
+      accepts[j++] = charset;
+    }
+  }
+
+  // trim accepts
+  accepts.length = j;
+
+  return accepts;
+}
+
+/**
+ * Parse a charset from the Accept-Charset header.
+ * @private
+ */
+
+function parseCharset(str, i) {
+  var match = simpleCharsetRegExp.exec(str);
+  if (!match) return null;
+
+  var charset = match[1];
+  var q = 1;
+  if (match[2]) {
+    var params = match[2].split(';')
+    for (var i = 0; i < params.length; i ++) {
+      var p = params[i].trim().split('=');
+      if (p[0] === 'q') {
+        q = parseFloat(p[1]);
+        break;
+      }
+    }
+  }
+
+  return {
+    charset: charset,
+    q: q,
+    i: i
+  };
+}
+
+/**
+ * Get the priority of a charset.
+ * @private
+ */
+
+function getCharsetPriority(charset, accepted, index) {
+  var priority = {o: -1, q: 0, s: 0};
+
+  for (var i = 0; i < accepted.length; i++) {
+    var spec = specify(charset, accepted[i], index);
+
+    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
+      priority = spec;
+    }
+  }
+
+  return priority;
+}
+
+/**
+ * Get the specificity of the charset.
+ * @private
+ */
+
+function specify(charset, spec, index) {
+  var s = 0;
+  if(spec.charset.toLowerCase() === charset.toLowerCase()){
+    s |= 1;
+  } else if (spec.charset !== '*' ) {
+    return null
+  }
+
+  return {
+    i: index,
+    o: spec.i,
+    q: spec.q,
+    s: s
+  }
+}
+
+/**
+ * Get the preferred charsets from an Accept-Charset header.
+ * @public
+ */
+
+function preferredCharsets(accept, provided) {
+  // RFC 2616 sec 14.2: no header = *
+  var accepts = parseAcceptCharset(accept === undefined ? '*' : accept || '');
+
+  if (!provided) {
+    // sorted list of all charsets
+    return accepts
+      .filter(isQuality)
+      .sort(compareSpecs)
+      .map(getFullCharset);
+  }
+
+  var priorities = provided.map(function getPriority(type, index) {
+    return getCharsetPriority(type, accepts, index);
+  });
+
+  // sorted list of accepted charsets
+  return priorities.filter(isQuality).sort(compareSpecs).map(function getCharset(priority) {
+    return provided[priorities.indexOf(priority)];
+  });
+}
+
+/**
+ * Compare two specs.
+ * @private
+ */
+
+function compareSpecs(a, b) {
+  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
+}
+
+/**
+ * Get full charset string.
+ * @private
+ */
+
+function getFullCharset(spec) {
+  return spec.charset;
+}
+
+/**
+ * Check if a spec has any quality.
+ * @private
+ */
+
+function isQuality(spec) {
+  return spec.q > 0;
+}
diff --git a/helloworld/node_modules/negotiator/lib/encoding.js b/helloworld/node_modules/negotiator/lib/encoding.js
new file mode 100755
index 0000000..70ac3de
--- /dev/null
+++ b/helloworld/node_modules/negotiator/lib/encoding.js
@@ -0,0 +1,184 @@
+/**
+ * negotiator
+ * Copyright(c) 2012 Isaac Z. Schlueter
+ * Copyright(c) 2014 Federico Romero
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = preferredEncodings;
+module.exports.preferredEncodings = preferredEncodings;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var simpleEncodingRegExp = /^\s*([^\s;]+)\s*(?:;(.*))?$/;
+
+/**
+ * Parse the Accept-Encoding header.
+ * @private
+ */
+
+function parseAcceptEncoding(accept) {
+  var accepts = accept.split(',');
+  var hasIdentity = false;
+  var minQuality = 1;
+
+  for (var i = 0, j = 0; i < accepts.length; i++) {
+    var encoding = parseEncoding(accepts[i].trim(), i);
+
+    if (encoding) {
+      accepts[j++] = encoding;
+      hasIdentity = hasIdentity || specify('identity', encoding);
+      minQuality = Math.min(minQuality, encoding.q || 1);
+    }
+  }
+
+  if (!hasIdentity) {
+    /*
+     * If identity doesn't explicitly appear in the accept-encoding header,
+     * it's added to the list of acceptable encoding with the lowest q
+     */
+    accepts[j++] = {
+      encoding: 'identity',
+      q: minQuality,
+      i: i
+    };
+  }
+
+  // trim accepts
+  accepts.length = j;
+
+  return accepts;
+}
+
+/**
+ * Parse an encoding from the Accept-Encoding header.
+ * @private
+ */
+
+function parseEncoding(str, i) {
+  var match = simpleEncodingRegExp.exec(str);
+  if (!match) return null;
+
+  var encoding = match[1];
+  var q = 1;
+  if (match[2]) {
+    var params = match[2].split(';');
+    for (var i = 0; i < params.length; i ++) {
+      var p = params[i].trim().split('=');
+      if (p[0] === 'q') {
+        q = parseFloat(p[1]);
+        break;
+      }
+    }
+  }
+
+  return {
+    encoding: encoding,
+    q: q,
+    i: i
+  };
+}
+
+/**
+ * Get the priority of an encoding.
+ * @private
+ */
+
+function getEncodingPriority(encoding, accepted, index) {
+  var priority = {o: -1, q: 0, s: 0};
+
+  for (var i = 0; i < accepted.length; i++) {
+    var spec = specify(encoding, accepted[i], index);
+
+    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
+      priority = spec;
+    }
+  }
+
+  return priority;
+}
+
+/**
+ * Get the specificity of the encoding.
+ * @private
+ */
+
+function specify(encoding, spec, index) {
+  var s = 0;
+  if(spec.encoding.toLowerCase() === encoding.toLowerCase()){
+    s |= 1;
+  } else if (spec.encoding !== '*' ) {
+    return null
+  }
+
+  return {
+    i: index,
+    o: spec.i,
+    q: spec.q,
+    s: s
+  }
+};
+
+/**
+ * Get the preferred encodings from an Accept-Encoding header.
+ * @public
+ */
+
+function preferredEncodings(accept, provided) {
+  var accepts = parseAcceptEncoding(accept || '');
+
+  if (!provided) {
+    // sorted list of all encodings
+    return accepts
+      .filter(isQuality)
+      .sort(compareSpecs)
+      .map(getFullEncoding);
+  }
+
+  var priorities = provided.map(function getPriority(type, index) {
+    return getEncodingPriority(type, accepts, index);
+  });
+
+  // sorted list of accepted encodings
+  return priorities.filter(isQuality).sort(compareSpecs).map(function getEncoding(priority) {
+    return provided[priorities.indexOf(priority)];
+  });
+}
+
+/**
+ * Compare two specs.
+ * @private
+ */
+
+function compareSpecs(a, b) {
+  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
+}
+
+/**
+ * Get full encoding string.
+ * @private
+ */
+
+function getFullEncoding(spec) {
+  return spec.encoding;
+}
+
+/**
+ * Check if a spec has any quality.
+ * @private
+ */
+
+function isQuality(spec) {
+  return spec.q > 0;
+}
diff --git a/helloworld/node_modules/negotiator/lib/language.js b/helloworld/node_modules/negotiator/lib/language.js
new file mode 100755
index 0000000..1bd2d0e
--- /dev/null
+++ b/helloworld/node_modules/negotiator/lib/language.js
@@ -0,0 +1,179 @@
+/**
+ * negotiator
+ * Copyright(c) 2012 Isaac Z. Schlueter
+ * Copyright(c) 2014 Federico Romero
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = preferredLanguages;
+module.exports.preferredLanguages = preferredLanguages;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var simpleLanguageRegExp = /^\s*([^\s\-;]+)(?:-([^\s;]+))?\s*(?:;(.*))?$/;
+
+/**
+ * Parse the Accept-Language header.
+ * @private
+ */
+
+function parseAcceptLanguage(accept) {
+  var accepts = accept.split(',');
+
+  for (var i = 0, j = 0; i < accepts.length; i++) {
+    var langauge = parseLanguage(accepts[i].trim(), i);
+
+    if (langauge) {
+      accepts[j++] = langauge;
+    }
+  }
+
+  // trim accepts
+  accepts.length = j;
+
+  return accepts;
+}
+
+/**
+ * Parse a language from the Accept-Language header.
+ * @private
+ */
+
+function parseLanguage(str, i) {
+  var match = simpleLanguageRegExp.exec(str);
+  if (!match) return null;
+
+  var prefix = match[1],
+      suffix = match[2],
+      full = prefix;
+
+  if (suffix) full += "-" + suffix;
+
+  var q = 1;
+  if (match[3]) {
+    var params = match[3].split(';')
+    for (var i = 0; i < params.length; i ++) {
+      var p = params[i].split('=');
+      if (p[0] === 'q') q = parseFloat(p[1]);
+    }
+  }
+
+  return {
+    prefix: prefix,
+    suffix: suffix,
+    q: q,
+    i: i,
+    full: full
+  };
+}
+
+/**
+ * Get the priority of a language.
+ * @private
+ */
+
+function getLanguagePriority(language, accepted, index) {
+  var priority = {o: -1, q: 0, s: 0};
+
+  for (var i = 0; i < accepted.length; i++) {
+    var spec = specify(language, accepted[i], index);
+
+    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
+      priority = spec;
+    }
+  }
+
+  return priority;
+}
+
+/**
+ * Get the specificity of the language.
+ * @private
+ */
+
+function specify(language, spec, index) {
+  var p = parseLanguage(language)
+  if (!p) return null;
+  var s = 0;
+  if(spec.full.toLowerCase() === p.full.toLowerCase()){
+    s |= 4;
+  } else if (spec.prefix.toLowerCase() === p.full.toLowerCase()) {
+    s |= 2;
+  } else if (spec.full.toLowerCase() === p.prefix.toLowerCase()) {
+    s |= 1;
+  } else if (spec.full !== '*' ) {
+    return null
+  }
+
+  return {
+    i: index,
+    o: spec.i,
+    q: spec.q,
+    s: s
+  }
+};
+
+/**
+ * Get the preferred languages from an Accept-Language header.
+ * @public
+ */
+
+function preferredLanguages(accept, provided) {
+  // RFC 2616 sec 14.4: no header = *
+  var accepts = parseAcceptLanguage(accept === undefined ? '*' : accept || '');
+
+  if (!provided) {
+    // sorted list of all languages
+    return accepts
+      .filter(isQuality)
+      .sort(compareSpecs)
+      .map(getFullLanguage);
+  }
+
+  var priorities = provided.map(function getPriority(type, index) {
+    return getLanguagePriority(type, accepts, index);
+  });
+
+  // sorted list of accepted languages
+  return priorities.filter(isQuality).sort(compareSpecs).map(function getLanguage(priority) {
+    return provided[priorities.indexOf(priority)];
+  });
+}
+
+/**
+ * Compare two specs.
+ * @private
+ */
+
+function compareSpecs(a, b) {
+  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
+}
+
+/**
+ * Get full language string.
+ * @private
+ */
+
+function getFullLanguage(spec) {
+  return spec.full;
+}
+
+/**
+ * Check if a spec has any quality.
+ * @private
+ */
+
+function isQuality(spec) {
+  return spec.q > 0;
+}
diff --git a/helloworld/node_modules/negotiator/lib/mediaType.js b/helloworld/node_modules/negotiator/lib/mediaType.js
new file mode 100755
index 0000000..67309dd
--- /dev/null
+++ b/helloworld/node_modules/negotiator/lib/mediaType.js
@@ -0,0 +1,294 @@
+/**
+ * negotiator
+ * Copyright(c) 2012 Isaac Z. Schlueter
+ * Copyright(c) 2014 Federico Romero
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = preferredMediaTypes;
+module.exports.preferredMediaTypes = preferredMediaTypes;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var simpleMediaTypeRegExp = /^\s*([^\s\/;]+)\/([^;\s]+)\s*(?:;(.*))?$/;
+
+/**
+ * Parse the Accept header.
+ * @private
+ */
+
+function parseAccept(accept) {
+  var accepts = splitMediaTypes(accept);
+
+  for (var i = 0, j = 0; i < accepts.length; i++) {
+    var mediaType = parseMediaType(accepts[i].trim(), i);
+
+    if (mediaType) {
+      accepts[j++] = mediaType;
+    }
+  }
+
+  // trim accepts
+  accepts.length = j;
+
+  return accepts;
+}
+
+/**
+ * Parse a media type from the Accept header.
+ * @private
+ */
+
+function parseMediaType(str, i) {
+  var match = simpleMediaTypeRegExp.exec(str);
+  if (!match) return null;
+
+  var params = Object.create(null);
+  var q = 1;
+  var subtype = match[2];
+  var type = match[1];
+
+  if (match[3]) {
+    var kvps = splitParameters(match[3]).map(splitKeyValuePair);
+
+    for (var j = 0; j < kvps.length; j++) {
+      var pair = kvps[j];
+      var key = pair[0].toLowerCase();
+      var val = pair[1];
+
+      // get the value, unwrapping quotes
+      var value = val && val[0] === '"' && val[val.length - 1] === '"'
+        ? val.substr(1, val.length - 2)
+        : val;
+
+      if (key === 'q') {
+        q = parseFloat(value);
+        break;
+      }
+
+      // store parameter
+      params[key] = value;
+    }
+  }
+
+  return {
+    type: type,
+    subtype: subtype,
+    params: params,
+    q: q,
+    i: i
+  };
+}
+
+/**
+ * Get the priority of a media type.
+ * @private
+ */
+
+function getMediaTypePriority(type, accepted, index) {
+  var priority = {o: -1, q: 0, s: 0};
+
+  for (var i = 0; i < accepted.length; i++) {
+    var spec = specify(type, accepted[i], index);
+
+    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
+      priority = spec;
+    }
+  }
+
+  return priority;
+}
+
+/**
+ * Get the specificity of the media type.
+ * @private
+ */
+
+function specify(type, spec, index) {
+  var p = parseMediaType(type);
+  var s = 0;
+
+  if (!p) {
+    return null;
+  }
+
+  if(spec.type.toLowerCase() == p.type.toLowerCase()) {
+    s |= 4
+  } else if(spec.type != '*') {
+    return null;
+  }
+
+  if(spec.subtype.toLowerCase() == p.subtype.toLowerCase()) {
+    s |= 2
+  } else if(spec.subtype != '*') {
+    return null;
+  }
+
+  var keys = Object.keys(spec.params);
+  if (keys.length > 0) {
+    if (keys.every(function (k) {
+      return spec.params[k] == '*' || (spec.params[k] || '').toLowerCase() == (p.params[k] || '').toLowerCase();
+    })) {
+      s |= 1
+    } else {
+      return null
+    }
+  }
+
+  return {
+    i: index,
+    o: spec.i,
+    q: spec.q,
+    s: s,
+  }
+}
+
+/**
+ * Get the preferred media types from an Accept header.
+ * @public
+ */
+
+function preferredMediaTypes(accept, provided) {
+  // RFC 2616 sec 14.2: no header = */*
+  var accepts = parseAccept(accept === undefined ? '*/*' : accept || '');
+
+  if (!provided) {
+    // sorted list of all types
+    return accepts
+      .filter(isQuality)
+      .sort(compareSpecs)
+      .map(getFullType);
+  }
+
+  var priorities = provided.map(function getPriority(type, index) {
+    return getMediaTypePriority(type, accepts, index);
+  });
+
+  // sorted list of accepted types
+  return priorities.filter(isQuality).sort(compareSpecs).map(function getType(priority) {
+    return provided[priorities.indexOf(priority)];
+  });
+}
+
+/**
+ * Compare two specs.
+ * @private
+ */
+
+function compareSpecs(a, b) {
+  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
+}
+
+/**
+ * Get full type string.
+ * @private
+ */
+
+function getFullType(spec) {
+  return spec.type + '/' + spec.subtype;
+}
+
+/**
+ * Check if a spec has any quality.
+ * @private
+ */
+
+function isQuality(spec) {
+  return spec.q > 0;
+}
+
+/**
+ * Count the number of quotes in a string.
+ * @private
+ */
+
+function quoteCount(string) {
+  var count = 0;
+  var index = 0;
+
+  while ((index = string.indexOf('"', index)) !== -1) {
+    count++;
+    index++;
+  }
+
+  return count;
+}
+
+/**
+ * Split a key value pair.
+ * @private
+ */
+
+function splitKeyValuePair(str) {
+  var index = str.indexOf('=');
+  var key;
+  var val;
+
+  if (index === -1) {
+    key = str;
+  } else {
+    key = str.substr(0, index);
+    val = str.substr(index + 1);
+  }
+
+  return [key, val];
+}
+
+/**
+ * Split an Accept header into media types.
+ * @private
+ */
+
+function splitMediaTypes(accept) {
+  var accepts = accept.split(',');
+
+  for (var i = 1, j = 0; i < accepts.length; i++) {
+    if (quoteCount(accepts[j]) % 2 == 0) {
+      accepts[++j] = accepts[i];
+    } else {
+      accepts[j] += ',' + accepts[i];
+    }
+  }
+
+  // trim accepts
+  accepts.length = j + 1;
+
+  return accepts;
+}
+
+/**
+ * Split a string of parameters.
+ * @private
+ */
+
+function splitParameters(str) {
+  var parameters = str.split(';');
+
+  for (var i = 1, j = 0; i < parameters.length; i++) {
+    if (quoteCount(parameters[j]) % 2 == 0) {
+      parameters[++j] = parameters[i];
+    } else {
+      parameters[j] += ';' + parameters[i];
+    }
+  }
+
+  // trim parameters
+  parameters.length = j + 1;
+
+  for (var i = 0; i < parameters.length; i++) {
+    parameters[i] = parameters[i].trim();
+  }
+
+  return parameters;
+}
diff --git a/helloworld/node_modules/normalize-package-data/AUTHORS b/helloworld/node_modules/normalize-package-data/AUTHORS
new file mode 100755
index 0000000..66282ba
--- /dev/null
+++ b/helloworld/node_modules/normalize-package-data/AUTHORS
@@ -0,0 +1,4 @@
+# Names sorted by how much code was originally theirs.
+Isaac Z. Schlueter <i@izs.me>
+Meryn Stol <merynstol@gmail.com>
+Robert Kowalski <rok@kowalski.gd>
diff --git a/helloworld/node_modules/normalize-package-data/LICENSE b/helloworld/node_modules/normalize-package-data/LICENSE
new file mode 100755
index 0000000..6ed662c
--- /dev/null
+++ b/helloworld/node_modules/normalize-package-data/LICENSE
@@ -0,0 +1,30 @@
+This package contains code originally written by Isaac Z. Schlueter.
+Used with permission.
+
+Copyright (c) Meryn Stol ("Author")
+All rights reserved.
+
+The BSD License
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
+BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/helloworld/node_modules/normalize-package-data/README.md b/helloworld/node_modules/normalize-package-data/README.md
new file mode 100755
index 0000000..d2bd7bc
--- /dev/null
+++ b/helloworld/node_modules/normalize-package-data/README.md
@@ -0,0 +1,106 @@
+# normalize-package-data [![Build Status](https://travis-ci.org/npm/normalize-package-data.png?branch=master)](https://travis-ci.org/npm/normalize-package-data)
+
+normalize-package-data exports a function that normalizes package metadata. This data is typically found in a package.json file, but in principle could come from any source - for example the npm registry.
+
+normalize-package-data is used by [read-package-json](https://npmjs.org/package/read-package-json) to normalize the data it reads from a package.json file. In turn, read-package-json is used by [npm](https://npmjs.org/package/npm) and various npm-related tools.
+
+## Installation
+
+```
+npm install normalize-package-data
+```
+
+## Usage
+
+Basic usage is really simple. You call the function that normalize-package-data exports. Let's call it `normalizeData`.
+
+```javascript
+normalizeData = require('normalize-package-data')
+packageData = require("./package.json")
+normalizeData(packageData)
+// packageData is now normalized
+```
+
+#### Strict mode
+
+You may activate strict validation by passing true as the second argument.
+
+```javascript
+normalizeData = require('normalize-package-data')
+packageData = require("./package.json")
+normalizeData(packageData, true)
+// packageData is now normalized
+```
+
+If strict mode is activated, only Semver 2.0 version strings are accepted. Otherwise, Semver 1.0 strings are accepted as well. Packages must have a name, and the name field must not have contain leading or trailing whitespace.
+
+#### Warnings
+
+Optionally, you may pass a "warning" function. It gets called whenever the `normalizeData` function encounters something that doesn't look right. It indicates less than perfect input data.
+
+```javascript
+normalizeData = require('normalize-package-data')
+packageData = require("./package.json")
+warnFn = function(msg) { console.error(msg) }
+normalizeData(packageData, warnFn)
+// packageData is now normalized. Any number of warnings may have been logged.
+```
+
+You may combine strict validation with warnings by passing `true` as the second argument, and `warnFn` as third.
+
+When `private` field is set to `true`, warnings will be suppressed.
+
+### Potential exceptions
+
+If the supplied data has an invalid name or version vield, `normalizeData` will throw an error. Depending on where you call `normalizeData`, you may want to catch these errors so can pass them to a callback.
+
+## What normalization (currently) entails
+
+* The value of `name` field gets trimmed (unless in strict mode).
+* The value of the `version` field gets cleaned by `semver.clean`. See [documentation for the semver module](https://github.com/isaacs/node-semver).
+* If `name` and/or `version` fields are missing, they are set to empty strings.
+* If `files` field is not an array, it will be removed.
+* If `bin` field is a string, then `bin` field will become an object with `name` set to the value of the `name` field, and `bin` set to the original string value.
+* If `man` field is a string, it will become an array with the original string as its sole member.
+* If `keywords` field is string, it is considered to be a list of keywords separated by one or more white-space characters. It gets converted to an array by splitting on `\s+`.
+* All people fields (`author`, `maintainers`, `contributors`) get converted into objects with name, email and url properties.
+* If `bundledDependencies` field (a typo) exists and `bundleDependencies` field does not, `bundledDependencies` will get renamed to `bundleDependencies`.
+* If the value of any of the dependencies fields  (`dependencies`, `devDependencies`, `optionalDependencies`) is a string, it gets converted into an object with familiar `name=>value` pairs.
+* The values in `optionalDependencies` get added to `dependencies`. The `optionalDependencies` array is left untouched.
+* As of v2: Dependencies that point at known hosted git providers (currently: github, bitbucket, gitlab) will have their URLs canonicalized, but protocols will be preserved.
+* As of v2: Dependencies that use shortcuts for hosted git providers (`org/proj`, `github:org/proj`, `bitbucket:org/proj`, `gitlab:org/proj`, `gist:docid`) will have the shortcut left in place. (In the case of github, the `org/proj` form will be expanded to `github:org/proj`.) THIS MARKS A BREAKING CHANGE FROM V1, where the shorcut was previously expanded to a URL.
+* If `description` field does not exist, but `readme` field does, then (more or less) the first paragraph of text that's found in the readme is taken as value for `description`.
+* If `repository` field is a string, it will become an object with `url` set to the original string value, and `type` set to `"git"`.
+* If `repository.url` is not a valid url, but in the style of "[owner-name]/[repo-name]", `repository.url` will be set to git+https://github.com/[owner-name]/[repo-name].git
+* If `bugs` field is a string, the value of `bugs` field is changed into an object with `url` set to the original string value.
+* If `bugs` field does not exist, but `repository` field points to a repository hosted on GitHub, the value of the `bugs` field gets set to an url in the form of https://github.com/[owner-name]/[repo-name]/issues . If the repository field points to a GitHub Gist repo url, the associated http url is chosen.
+* If `bugs` field is an object, the resulting value only has email and url properties. If email and url properties are not strings, they are ignored. If no valid values for either email or url is found, bugs field will be removed.
+* If `homepage` field is not a string, it will be removed.
+* If the url in the `homepage` field does not specify a protocol, then http is assumed. For example, `myproject.org` will be changed to `http://myproject.org`.
+* If `homepage` field does not exist, but `repository` field points to a repository hosted on GitHub, the value of the `homepage` field gets set to an url in the form of https://github.com/[owner-name]/[repo-name]#readme . If the repository field points to a GitHub Gist repo url, the associated http url is chosen.
+
+### Rules for name field
+
+If `name` field is given, the value of the name field must be a string. The string may not:
+
+* start with a period.
+* contain the following characters: `/@\s+%`
+* contain any characters that would need to be encoded for use in urls.
+* resemble the word `node_modules` or `favicon.ico` (case doesn't matter).
+
+### Rules for version field
+
+If `version` field is given, the value of the version field must be a valid *semver* string, as determined by the `semver.valid` method. See [documentation for the semver module](https://github.com/isaacs/node-semver).
+
+### Rules for license field
+
+The `license` field should be a valid *SPDX license expression* or one of the special values allowed by [validate-npm-package-license](https://npmjs.com/package/validate-npm-package-license). See [documentation for the license field in package.json](https://docs.npmjs.com/files/package.json#license).
+
+## Credits
+
+This package contains code based on read-package-json written by Isaac Z. Schlueter. Used with permisson.
+
+## License
+
+normalize-package-data is released under the [BSD 2-Clause License](http://opensource.org/licenses/MIT).  
+Copyright (c) 2013 Meryn Stol  
diff --git a/helloworld/node_modules/normalize-package-data/lib/extract_description.js b/helloworld/node_modules/normalize-package-data/lib/extract_description.js
new file mode 100755
index 0000000..83f10aa
--- /dev/null
+++ b/helloworld/node_modules/normalize-package-data/lib/extract_description.js
@@ -0,0 +1,14 @@
+module.exports = extractDescription
+
+// Extracts description from contents of a readme file in markdown format
+function extractDescription (d) {
+  if (!d) return;
+  if (d === "ERROR: No README data found!") return;
+  // the first block of text before the first heading
+  // that isn't the first line heading
+  d = d.trim().split('\n')
+  for (var s = 0; d[s] && d[s].trim().match(/^(#|$)/); s ++);
+  var l = d.length
+  for (var e = s + 1; e < l && d[e].trim(); e ++);
+  return d.slice(s, e).join(' ').trim()
+}
diff --git a/helloworld/node_modules/normalize-package-data/lib/fixer.js b/helloworld/node_modules/normalize-package-data/lib/fixer.js
new file mode 100755
index 0000000..27682e9
--- /dev/null
+++ b/helloworld/node_modules/normalize-package-data/lib/fixer.js
@@ -0,0 +1,418 @@
+var semver = require("semver")
+var validateLicense = require('validate-npm-package-license');
+var hostedGitInfo = require("hosted-git-info")
+var isBuiltinModule = require("resolve").isCore
+var depTypes = ["dependencies","devDependencies","optionalDependencies"]
+var extractDescription = require("./extract_description")
+var url = require("url")
+var typos = require("./typos.json")
+
+var fixer = module.exports = {
+  // default warning function
+  warn: function() {},
+
+  fixRepositoryField: function(data) {
+    if (data.repositories) {
+      this.warn("repositories");
+      data.repository = data.repositories[0]
+    }
+    if (!data.repository) return this.warn("missingRepository")
+    if (typeof data.repository === "string") {
+      data.repository = {
+        type: "git",
+        url: data.repository
+      }
+    }
+    var r = data.repository.url || ""
+    if (r) {
+      var hosted = hostedGitInfo.fromUrl(r)
+      if (hosted) {
+        r = data.repository.url
+          = hosted.getDefaultRepresentation() == "shortcut" ? hosted.https() : hosted.toString()
+      }
+    }
+
+    if (r.match(/github.com\/[^\/]+\/[^\/]+\.git\.git$/)) {
+      this.warn("brokenGitUrl", r)
+    }
+  }
+
+, fixTypos: function(data) {
+    Object.keys(typos.topLevel).forEach(function (d) {
+      if (data.hasOwnProperty(d)) {
+        this.warn("typo", d, typos.topLevel[d])
+      }
+    }, this)
+  }
+
+, fixScriptsField: function(data) {
+    if (!data.scripts) return
+    if (typeof data.scripts !== "object") {
+      this.warn("nonObjectScripts")
+      delete data.scripts
+      return
+    }
+    Object.keys(data.scripts).forEach(function (k) {
+      if (typeof data.scripts[k] !== "string") {
+        this.warn("nonStringScript")
+        delete data.scripts[k]
+      } else if (typos.script[k] && !data.scripts[typos.script[k]]) {
+        this.warn("typo", k, typos.script[k], "scripts")
+      }
+    }, this)
+  }
+
+, fixFilesField: function(data) {
+    var files = data.files
+    if (files && !Array.isArray(files)) {
+      this.warn("nonArrayFiles")
+      delete data.files
+    } else if (data.files) {
+      data.files = data.files.filter(function(file) {
+        if (!file || typeof file !== "string") {
+          this.warn("invalidFilename", file)
+          return false
+        } else {
+          return true
+        }
+      }, this)
+    }
+  }
+
+, fixBinField: function(data) {
+    if (!data.bin) return;
+    if (typeof data.bin === "string") {
+      var b = {}
+      var match
+      if (match = data.name.match(/^@[^/]+[/](.*)$/)) {
+        b[match[1]] = data.bin
+      } else {
+        b[data.name] = data.bin
+      }
+      data.bin = b
+    }
+  }
+
+, fixManField: function(data) {
+    if (!data.man) return;
+    if (typeof data.man === "string") {
+      data.man = [ data.man ]
+    }
+  }
+, fixBundleDependenciesField: function(data) {
+    var bdd = "bundledDependencies"
+    var bd = "bundleDependencies"
+    if (data[bdd] && !data[bd]) {
+      data[bd] = data[bdd]
+      delete data[bdd]
+    }
+    if (data[bd] && !Array.isArray(data[bd])) {
+      this.warn("nonArrayBundleDependencies")
+      delete data[bd]
+    } else if (data[bd]) {
+      data[bd] = data[bd].filter(function(bd) {
+        if (!bd || typeof bd !== 'string') {
+          this.warn("nonStringBundleDependency", bd)
+          return false
+        } else {
+          if (!data.dependencies) {
+            data.dependencies = {}
+          }
+          if (!data.dependencies.hasOwnProperty(bd)) {
+            this.warn("nonDependencyBundleDependency", bd)
+            data.dependencies[bd] = "*"
+          }
+          return true
+        }
+      }, this)
+    }
+  }
+
+, fixDependencies: function(data, strict) {
+    var loose = !strict
+    objectifyDeps(data, this.warn)
+    addOptionalDepsToDeps(data, this.warn)
+    this.fixBundleDependenciesField(data)
+
+    ;['dependencies','devDependencies'].forEach(function(deps) {
+      if (!(deps in data)) return
+      if (!data[deps] || typeof data[deps] !== "object") {
+        this.warn("nonObjectDependencies", deps)
+        delete data[deps]
+        return
+      }
+      Object.keys(data[deps]).forEach(function (d) {
+        var r = data[deps][d]
+        if (typeof r !== 'string') {
+          this.warn("nonStringDependency", d, JSON.stringify(r))
+          delete data[deps][d]
+        }
+        var hosted = hostedGitInfo.fromUrl(data[deps][d])
+        if (hosted) data[deps][d] = hosted.toString()
+      }, this)
+    }, this)
+  }
+
+, fixModulesField: function (data) {
+    if (data.modules) {
+      this.warn("deprecatedModules")
+      delete data.modules
+    }
+  }
+
+, fixKeywordsField: function (data) {
+    if (typeof data.keywords === "string") {
+      data.keywords = data.keywords.split(/,\s+/)
+    }
+    if (data.keywords && !Array.isArray(data.keywords)) {
+      delete data.keywords
+      this.warn("nonArrayKeywords")
+    } else if (data.keywords) {
+      data.keywords = data.keywords.filter(function(kw) {
+        if (typeof kw !== "string" || !kw) {
+          this.warn("nonStringKeyword");
+          return false
+        } else {
+          return true
+        }
+      }, this)
+    }
+  }
+
+, fixVersionField: function(data, strict) {
+    // allow "loose" semver 1.0 versions in non-strict mode
+    // enforce strict semver 2.0 compliance in strict mode
+    var loose = !strict
+    if (!data.version) {
+      data.version = ""
+      return true
+    }
+    if (!semver.valid(data.version, loose)) {
+      throw new Error('Invalid version: "'+ data.version + '"')
+    }
+    data.version = semver.clean(data.version, loose)
+    return true
+  }
+
+, fixPeople: function(data) {
+    modifyPeople(data, unParsePerson)
+    modifyPeople(data, parsePerson)
+  }
+
+, fixNameField: function(data, options) {
+    if (typeof options === "boolean") options = {strict: options}
+    else if (typeof options === "undefined") options = {}
+    var strict = options.strict
+    if (!data.name && !strict) {
+      data.name = ""
+      return
+    }
+    if (typeof data.name !== "string") {
+      throw new Error("name field must be a string.")
+    }
+    if (!strict)
+      data.name = data.name.trim()
+    ensureValidName(data.name, strict, options.allowLegacyCase)
+    if (isBuiltinModule(data.name))
+      this.warn("conflictingName", data.name)
+  }
+
+
+, fixDescriptionField: function (data) {
+    if (data.description && typeof data.description !== 'string') {
+      this.warn("nonStringDescription")
+      delete data.description
+    }
+    if (data.readme && !data.description)
+      data.description = extractDescription(data.readme)
+      if(data.description === undefined) delete data.description;
+    if (!data.description) this.warn("missingDescription")
+  }
+
+, fixReadmeField: function (data) {
+    if (!data.readme) {
+      this.warn("missingReadme")
+      data.readme = "ERROR: No README data found!"
+    }
+  }
+
+, fixBugsField: function(data) {
+    if (!data.bugs && data.repository && data.repository.url) {
+      var hosted = hostedGitInfo.fromUrl(data.repository.url)
+      if(hosted && hosted.bugs()) {
+        data.bugs = {url: hosted.bugs()}
+      }
+    }
+    else if(data.bugs) {
+      var emailRe = /^.+@.*\..+$/
+      if(typeof data.bugs == "string") {
+        if(emailRe.test(data.bugs))
+          data.bugs = {email:data.bugs}
+        else if(url.parse(data.bugs).protocol)
+          data.bugs = {url: data.bugs}
+        else
+          this.warn("nonEmailUrlBugsString")
+      }
+      else {
+        bugsTypos(data.bugs, this.warn)
+        var oldBugs = data.bugs
+        data.bugs = {}
+        if(oldBugs.url) {
+          if(typeof(oldBugs.url) == "string" && url.parse(oldBugs.url).protocol)
+            data.bugs.url = oldBugs.url
+          else
+            this.warn("nonUrlBugsUrlField")
+        }
+        if(oldBugs.email) {
+          if(typeof(oldBugs.email) == "string" && emailRe.test(oldBugs.email))
+            data.bugs.email = oldBugs.email
+          else
+            this.warn("nonEmailBugsEmailField")
+        }
+      }
+      if(!data.bugs.email && !data.bugs.url) {
+        delete data.bugs
+        this.warn("emptyNormalizedBugs")
+      }
+    }
+  }
+
+, fixHomepageField: function(data) {
+    if (!data.homepage && data.repository && data.repository.url) {
+      var hosted = hostedGitInfo.fromUrl(data.repository.url)
+      if (hosted && hosted.docs()) data.homepage = hosted.docs()
+    }
+    if (!data.homepage) return
+
+    if(typeof data.homepage !== "string") {
+      this.warn("nonUrlHomepage")
+      return delete data.homepage
+    }
+    if(!url.parse(data.homepage).protocol) {
+      data.homepage = "http://" + data.homepage
+    }
+  }
+
+, fixLicenseField: function(data) {
+    if (!data.license) {
+      return this.warn("missingLicense")
+    } else{
+      if (
+        typeof(data.license) !== 'string' ||
+        data.license.length < 1 ||
+        data.license.trim() === ''
+      ) {
+        this.warn("invalidLicense")
+      } else {
+        if (!validateLicense(data.license).validForNewPackages)
+          this.warn("invalidLicense")
+      }
+    }
+  }
+}
+
+function isValidScopedPackageName(spec) {
+  if (spec.charAt(0) !== '@') return false
+
+  var rest = spec.slice(1).split('/')
+  if (rest.length !== 2) return false
+
+  return rest[0] && rest[1] &&
+    rest[0] === encodeURIComponent(rest[0]) &&
+    rest[1] === encodeURIComponent(rest[1])
+}
+
+function isCorrectlyEncodedName(spec) {
+  return !spec.match(/[\/@\s\+%:]/) &&
+    spec === encodeURIComponent(spec)
+}
+
+function ensureValidName (name, strict, allowLegacyCase) {
+  if (name.charAt(0) === "." ||
+      !(isValidScopedPackageName(name) || isCorrectlyEncodedName(name)) ||
+      (strict && (!allowLegacyCase) && name !== name.toLowerCase()) ||
+      name.toLowerCase() === "node_modules" ||
+      name.toLowerCase() === "favicon.ico") {
+        throw new Error("Invalid name: " + JSON.stringify(name))
+  }
+}
+
+function modifyPeople (data, fn) {
+  if (data.author) data.author = fn(data.author)
+  ;["maintainers", "contributors"].forEach(function (set) {
+    if (!Array.isArray(data[set])) return;
+    data[set] = data[set].map(fn)
+  })
+  return data
+}
+
+function unParsePerson (person) {
+  if (typeof person === "string") return person
+  var name = person.name || ""
+  var u = person.url || person.web
+  var url = u ? (" ("+u+")") : ""
+  var e = person.email || person.mail
+  var email = e ? (" <"+e+">") : ""
+  return name+email+url
+}
+
+function parsePerson (person) {
+  if (typeof person !== "string") return person
+  var name = person.match(/^([^\(<]+)/)
+  var url = person.match(/\(([^\)]+)\)/)
+  var email = person.match(/<([^>]+)>/)
+  var obj = {}
+  if (name && name[0].trim()) obj.name = name[0].trim()
+  if (email) obj.email = email[1];
+  if (url) obj.url = url[1];
+  return obj
+}
+
+function addOptionalDepsToDeps (data, warn) {
+  var o = data.optionalDependencies
+  if (!o) return;
+  var d = data.dependencies || {}
+  Object.keys(o).forEach(function (k) {
+    d[k] = o[k]
+  })
+  data.dependencies = d
+}
+
+function depObjectify (deps, type, warn) {
+  if (!deps) return {}
+  if (typeof deps === "string") {
+    deps = deps.trim().split(/[\n\r\s\t ,]+/)
+  }
+  if (!Array.isArray(deps)) return deps
+  warn("deprecatedArrayDependencies", type)
+  var o = {}
+  deps.filter(function (d) {
+    return typeof d === "string"
+  }).forEach(function(d) {
+    d = d.trim().split(/(:?[@\s><=])/)
+    var dn = d.shift()
+    var dv = d.join("")
+    dv = dv.trim()
+    dv = dv.replace(/^@/, "")
+    o[dn] = dv
+  })
+  return o
+}
+
+function objectifyDeps (data, warn) {
+  depTypes.forEach(function (type) {
+    if (!data[type]) return;
+    data[type] = depObjectify(data[type], type, warn)
+  })
+}
+
+function bugsTypos(bugs, warn) {
+  if (!bugs) return
+  Object.keys(bugs).forEach(function (k) {
+    if (typos.bugs[k]) {
+      warn("typo", k, typos.bugs[k], "bugs")
+      bugs[typos.bugs[k]] = bugs[k]
+      delete bugs[k]
+    }
+  })
+}
diff --git a/helloworld/node_modules/normalize-package-data/lib/make_warning.js b/helloworld/node_modules/normalize-package-data/lib/make_warning.js
new file mode 100755
index 0000000..4ac74ad
--- /dev/null
+++ b/helloworld/node_modules/normalize-package-data/lib/make_warning.js
@@ -0,0 +1,23 @@
+var util = require("util")
+var messages = require("./warning_messages.json")
+
+module.exports = function() {
+  var args = Array.prototype.slice.call(arguments, 0)
+  var warningName = args.shift()
+  if (warningName == "typo") {
+    return makeTypoWarning.apply(null,args)
+  }
+  else {
+    var msgTemplate = messages[warningName] ? messages[warningName] : warningName + ": '%s'"
+    args.unshift(msgTemplate)
+    return util.format.apply(null, args)
+  }
+}
+
+function makeTypoWarning (providedName, probableName, field) {
+  if (field) {
+    providedName = field + "['" + providedName + "']"
+    probableName = field + "['" + probableName + "']"
+  }
+  return util.format(messages.typo, providedName, probableName)
+}
diff --git a/helloworld/node_modules/normalize-package-data/lib/normalize.js b/helloworld/node_modules/normalize-package-data/lib/normalize.js
new file mode 100755
index 0000000..bd1bfef
--- /dev/null
+++ b/helloworld/node_modules/normalize-package-data/lib/normalize.js
@@ -0,0 +1,39 @@
+module.exports = normalize
+
+var fixer = require("./fixer")
+normalize.fixer = fixer
+
+var makeWarning = require("./make_warning")
+
+var fieldsToFix = ['name','version','description','repository','modules','scripts'
+                  ,'files','bin','man','bugs','keywords','readme','homepage','license']
+var otherThingsToFix = ['dependencies','people', 'typos']
+
+var thingsToFix = fieldsToFix.map(function(fieldName) {
+  return ucFirst(fieldName) + "Field"
+})
+// two ways to do this in CoffeeScript on only one line, sub-70 chars:
+// thingsToFix = fieldsToFix.map (name) -> ucFirst(name) + "Field"
+// thingsToFix = (ucFirst(name) + "Field" for name in fieldsToFix)
+thingsToFix = thingsToFix.concat(otherThingsToFix)
+
+function normalize (data, warn, strict) {
+  if(warn === true) warn = null, strict = true
+  if(!strict) strict = false
+  if(!warn || data.private) warn = function(msg) { /* noop */ }
+
+  if (data.scripts &&
+      data.scripts.install === "node-gyp rebuild" &&
+      !data.scripts.preinstall) {
+    data.gypfile = true
+  }
+  fixer.warn = function() { warn(makeWarning.apply(null, arguments)) }
+  thingsToFix.forEach(function(thingName) {
+    fixer["fix" + ucFirst(thingName)](data, strict)
+  })
+  data._id = data.name + "@" + data.version
+}
+
+function ucFirst (string) {
+  return string.charAt(0).toUpperCase() + string.slice(1);
+}
diff --git a/helloworld/node_modules/normalize-package-data/lib/safe_format.js b/helloworld/node_modules/normalize-package-data/lib/safe_format.js
new file mode 100755
index 0000000..b07f100
--- /dev/null
+++ b/helloworld/node_modules/normalize-package-data/lib/safe_format.js
@@ -0,0 +1,9 @@
+var util = require('util')
+
+module.exports = function() {
+  var args = Array.prototype.slice.call(arguments, 0)
+  args.forEach(function(arg) {
+    if (!arg) throw new TypeError('Bad arguments.')
+  })
+  return util.format.apply(null, arguments)
+}
diff --git a/helloworld/node_modules/normalize-package-data/lib/typos.json b/helloworld/node_modules/normalize-package-data/lib/typos.json
new file mode 100755
index 0000000..7f9dd28
--- /dev/null
+++ b/helloworld/node_modules/normalize-package-data/lib/typos.json
@@ -0,0 +1,25 @@
+{
+  "topLevel": {
+    "dependancies": "dependencies"
+   ,"dependecies": "dependencies"
+   ,"depdenencies": "dependencies"
+   ,"devEependencies": "devDependencies"
+   ,"depends": "dependencies"
+   ,"dev-dependencies": "devDependencies"
+   ,"devDependences": "devDependencies"
+   ,"devDepenencies": "devDependencies"
+   ,"devdependencies": "devDependencies"
+   ,"repostitory": "repository"
+   ,"repo": "repository"
+   ,"prefereGlobal": "preferGlobal"
+   ,"hompage": "homepage"
+   ,"hampage": "homepage"
+   ,"autohr": "author"
+   ,"autor": "author"
+   ,"contributers": "contributors"
+   ,"publicationConfig": "publishConfig"
+   ,"script": "scripts"
+  },
+  "bugs": { "web": "url", "name": "url" },
+  "script": { "server": "start", "tests": "test" }
+}
diff --git a/helloworld/node_modules/normalize-package-data/lib/warning_messages.json b/helloworld/node_modules/normalize-package-data/lib/warning_messages.json
new file mode 100755
index 0000000..4890f50
--- /dev/null
+++ b/helloworld/node_modules/normalize-package-data/lib/warning_messages.json
@@ -0,0 +1,30 @@
+{
+  "repositories": "'repositories' (plural) Not supported. Please pick one as the 'repository' field"
+  ,"missingRepository": "No repository field."
+  ,"brokenGitUrl": "Probably broken git url: %s"
+  ,"nonObjectScripts": "scripts must be an object"
+  ,"nonStringScript": "script values must be string commands"
+  ,"nonArrayFiles": "Invalid 'files' member"
+  ,"invalidFilename": "Invalid filename in 'files' list: %s"
+  ,"nonArrayBundleDependencies": "Invalid 'bundleDependencies' list. Must be array of package names"
+  ,"nonStringBundleDependency": "Invalid bundleDependencies member: %s"
+  ,"nonDependencyBundleDependency": "Non-dependency in bundleDependencies: %s"
+  ,"nonObjectDependencies": "%s field must be an object"
+  ,"nonStringDependency": "Invalid dependency: %s %s"
+  ,"deprecatedArrayDependencies": "specifying %s as array is deprecated"
+  ,"deprecatedModules": "modules field is deprecated"
+  ,"nonArrayKeywords": "keywords should be an array of strings"
+  ,"nonStringKeyword": "keywords should be an array of strings"
+  ,"conflictingName": "%s is also the name of a node core module."
+  ,"nonStringDescription": "'description' field should be a string"
+  ,"missingDescription": "No description"
+  ,"missingReadme": "No README data"
+  ,"missingLicense": "No license field."
+  ,"nonEmailUrlBugsString": "Bug string field must be url, email, or {email,url}"
+  ,"nonUrlBugsUrlField": "bugs.url field must be a string url. Deleted."
+  ,"nonEmailBugsEmailField": "bugs.email field must be a string email. Deleted."
+  ,"emptyNormalizedBugs": "Normalized value of bugs field is an empty object. Deleted."
+  ,"nonUrlHomepage": "homepage field must be a string url. Deleted."
+  ,"invalidLicense": "license should be a valid SPDX license expression"
+  ,"typo": "%s should probably be %s."
+}
diff --git a/helloworld/node_modules/normalize-url/index.js b/helloworld/node_modules/normalize-url/index.js
new file mode 100755
index 0000000..ce70108
--- /dev/null
+++ b/helloworld/node_modules/normalize-url/index.js
@@ -0,0 +1,139 @@
+'use strict';
+// TODO: Use the `URL` global when targeting Node.js 10
+const URLParser = typeof URL === 'undefined' ? require('url').URL : URL;
+
+const testParameter = (name, filters) => {
+	return filters.some(filter => filter instanceof RegExp ? filter.test(name) : filter === name);
+};
+
+module.exports = (urlString, opts) => {
+	opts = Object.assign({
+		defaultProtocol: 'http:',
+		normalizeProtocol: true,
+		forceHttp: false,
+		forceHttps: false,
+		stripHash: true,
+		stripWWW: true,
+		removeQueryParameters: [/^utm_\w+/i],
+		removeTrailingSlash: true,
+		removeDirectoryIndex: false,
+		sortQueryParameters: true
+	}, opts);
+
+	// Backwards compatibility
+	if (Reflect.has(opts, 'normalizeHttps')) {
+		opts.forceHttp = opts.normalizeHttps;
+	}
+
+	if (Reflect.has(opts, 'normalizeHttp')) {
+		opts.forceHttps = opts.normalizeHttp;
+	}
+
+	if (Reflect.has(opts, 'stripFragment')) {
+		opts.stripHash = opts.stripFragment;
+	}
+
+	urlString = urlString.trim();
+
+	const hasRelativeProtocol = urlString.startsWith('//');
+	const isRelativeUrl = !hasRelativeProtocol && /^\.*\//.test(urlString);
+
+	// Prepend protocol
+	if (!isRelativeUrl) {
+		urlString = urlString.replace(/^(?!(?:\w+:)?\/\/)|^\/\//, opts.defaultProtocol);
+	}
+
+	const urlObj = new URLParser(urlString);
+
+	if (opts.forceHttp && opts.forceHttps) {
+		throw new Error('The `forceHttp` and `forceHttps` options cannot be used together');
+	}
+
+	if (opts.forceHttp && urlObj.protocol === 'https:') {
+		urlObj.protocol = 'http:';
+	}
+
+	if (opts.forceHttps && urlObj.protocol === 'http:') {
+		urlObj.protocol = 'https:';
+	}
+
+	// Remove hash
+	if (opts.stripHash) {
+		urlObj.hash = '';
+	}
+
+	// Remove duplicate slashes if not preceded by a protocol
+	if (urlObj.pathname) {
+		// TODO: Use the following instead when targeting Node.js 10
+		// `urlObj.pathname = urlObj.pathname.replace(/(?<!https?:)\/{2,}/g, '/');`
+		urlObj.pathname = urlObj.pathname.replace(/((?![https?:]).)\/{2,}/g, (_, p1) => {
+			if (/^(?!\/)/g.test(p1)) {
+				return `${p1}/`;
+			}
+			return '/';
+		});
+	}
+
+	// Decode URI octets
+	if (urlObj.pathname) {
+		urlObj.pathname = decodeURI(urlObj.pathname);
+	}
+
+	// Remove directory index
+	if (opts.removeDirectoryIndex === true) {
+		opts.removeDirectoryIndex = [/^index\.[a-z]+$/];
+	}
+
+	if (Array.isArray(opts.removeDirectoryIndex) && opts.removeDirectoryIndex.length > 0) {
+		let pathComponents = urlObj.pathname.split('/');
+		const lastComponent = pathComponents[pathComponents.length - 1];
+
+		if (testParameter(lastComponent, opts.removeDirectoryIndex)) {
+			pathComponents = pathComponents.slice(0, pathComponents.length - 1);
+			urlObj.pathname = pathComponents.slice(1).join('/') + '/';
+		}
+	}
+
+	if (urlObj.hostname) {
+		// Remove trailing dot
+		urlObj.hostname = urlObj.hostname.replace(/\.$/, '');
+
+		// Remove `www.`
+		// eslint-disable-next-line no-useless-escape
+		if (opts.stripWWW && /^www\.([a-z\-\d]{2,63})\.([a-z\.]{2,5})$/.test(urlObj.hostname)) {
+			// Each label should be max 63 at length (min: 2).
+			// The extension should be max 5 at length (min: 2).
+			// Source: https://en.wikipedia.org/wiki/Hostname#Restrictions_on_valid_host_names
+			urlObj.hostname = urlObj.hostname.replace(/^www\./, '');
+		}
+	}
+
+	// Remove query unwanted parameters
+	if (Array.isArray(opts.removeQueryParameters)) {
+		for (const key of [...urlObj.searchParams.keys()]) {
+			if (testParameter(key, opts.removeQueryParameters)) {
+				urlObj.searchParams.delete(key);
+			}
+		}
+	}
+
+	// Sort query parameters
+	if (opts.sortQueryParameters) {
+		urlObj.searchParams.sort();
+	}
+
+	// Take advantage of many of the Node `url` normalizations
+	urlString = urlObj.toString();
+
+	// Remove ending `/`
+	if (opts.removeTrailingSlash || urlObj.pathname === '/') {
+		urlString = urlString.replace(/\/$/, '');
+	}
+
+	// Restore relative protocol, if applicable
+	if (hasRelativeProtocol && !opts.normalizeProtocol) {
+		urlString = urlString.replace(/^http:\/\//, '//');
+	}
+
+	return urlString;
+};
diff --git a/helloworld/node_modules/normalize-url/license b/helloworld/node_modules/normalize-url/license
new file mode 100755
index 0000000..e7af2f7
--- /dev/null
+++ b/helloworld/node_modules/normalize-url/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/normalize-url/readme.md b/helloworld/node_modules/normalize-url/readme.md
new file mode 100755
index 0000000..d051aaf
--- /dev/null
+++ b/helloworld/node_modules/normalize-url/readme.md
@@ -0,0 +1,194 @@
+# normalize-url [![Build Status](https://travis-ci.org/sindresorhus/normalize-url.svg?branch=master)](https://travis-ci.org/sindresorhus/normalize-url) [![Coverage Status](https://coveralls.io/repos/github/sindresorhus/normalize-url/badge.svg?branch=master)](https://coveralls.io/github/sindresorhus/normalize-url?branch=master)
+
+> [Normalize](https://en.wikipedia.org/wiki/URL_normalization) a URL
+
+Useful when you need to display, store, deduplicate, sort, compare, etc, URLs.
+
+
+## Install
+
+```
+$ npm install normalize-url
+```
+
+
+## Usage
+
+```js
+const normalizeUrl = require('normalize-url');
+
+normalizeUrl('sindresorhus.com');
+//=> 'http://sindresorhus.com'
+
+normalizeUrl('HTTP://xn--xample-hva.com:80/?b=bar&a=foo');
+//=> 'http://êxample.com/?a=foo&b=bar'
+```
+
+
+## API
+
+### normalizeUrl(url, [options])
+
+#### url
+
+Type: `string`
+
+URL to normalize.
+
+#### options
+
+Type: `Object`
+
+##### defaultProtocol
+
+Type: `string`<br>
+Default: `http:`
+
+##### normalizeProtocol
+
+Type: `boolean`<br>
+Default: `true`
+
+Prepends `defaultProtocol` to the URL if it's protocol-relative.
+
+```js
+normalizeUrl('//sindresorhus.com:80/');
+//=> 'http://sindresorhus.com'
+
+normalizeUrl('//sindresorhus.com:80/', {normalizeProtocol: false});
+//=> '//sindresorhus.com'
+```
+
+##### forceHttp
+
+Type: `boolean`<br>
+Default: `false`
+
+Normalizes `https:` URLs to `http:`.
+
+```js
+normalizeUrl('https://sindresorhus.com:80/');
+//=> 'https://sindresorhus.com'
+
+normalizeUrl('https://sindresorhus.com:80/', {normalizeHttps: true});
+//=> 'http://sindresorhus.com'
+```
+
+##### forceHttps
+
+Type: `boolean`<br>
+Default: `false`
+
+Normalizes `http:` URLs to `https:`.
+
+```js
+normalizeUrl('https://sindresorhus.com:80/');
+//=> 'https://sindresorhus.com'
+
+normalizeUrl('http://sindresorhus.com:80/', {normalizeHttp: true});
+//=> 'https://sindresorhus.com'
+```
+
+This option can't be used with the `forceHttp` option at the same time.
+
+##### stripHash
+
+Type: `boolean`<br>
+Default: `true`
+
+Removes hash from the URL.
+
+```js
+normalizeUrl('sindresorhus.com/about.html#contact');
+//=> 'http://sindresorhus.com/about.html'
+
+normalizeUrl('sindresorhus.com/about.html#contact', {stripHash: false});
+//=> 'http://sindresorhus.com/about.html#contact'
+```
+
+##### stripWWW
+
+Type: `boolean`<br>
+Default: `true`
+
+Removes `www.` from the URL.
+
+```js
+normalizeUrl('http://www.sindresorhus.com/about.html#contact');
+//=> 'http://sindresorhus.com/about.html#contact'
+
+normalizeUrl('http://www.sindresorhus.com/about.html#contact', {stripWWW: false});
+//=> 'http://www.sindresorhus.com/about.html#contact'
+```
+
+##### removeQueryParameters
+
+Type: `Array<RegExp|string>`<br>
+Default: `[/^utm_\w+/i]`
+
+Removes query parameters that matches any of the provided strings or regexes.
+
+```js
+normalizeUrl('www.sindresorhus.com?foo=bar&ref=test_ref', {
+	removeQueryParameters: ['ref']
+});
+//=> 'http://sindresorhus.com/?foo=bar'
+```
+
+##### removeTrailingSlash
+
+Type: `boolean`<br>
+Default: `true`
+
+Removes trailing slash.
+
+**Note:** Trailing slash is always removed if the URL doesn't have a pathname.
+
+```js
+normalizeUrl('http://sindresorhus.com/redirect/');
+//=> 'http://sindresorhus.com/redirect'
+
+normalizeUrl('http://sindresorhus.com/redirect/', {removeTrailingSlash: false});
+//=> 'http://sindresorhus.com/redirect/'
+
+normalizeUrl('http://sindresorhus.com/', {removeTrailingSlash: false});
+//=> 'http://sindresorhus.com'
+```
+
+##### removeDirectoryIndex
+
+Type: `boolean` `Array<RegExp|string>`<br>
+Default: `false`
+
+Removes the default directory index file from path that matches any of the provided strings or regexes. When `true`, the regex `/^index\.[a-z]+$/` is used.
+
+```js
+normalizeUrl('www.sindresorhus.com/foo/default.php', {
+	removeDirectoryIndex: [/^default\.[a-z]+$/]
+});
+//=> 'http://sindresorhus.com/foo'
+```
+
+##### sortQueryParameters
+
+Type: `boolean`<br>
+Default: `true`
+
+Sorts the query parameters alphabetically by key.
+
+```js
+normalizeUrl('www.sindresorhus.com?b=two&a=one&c=three', {
+	sortQueryParameters: false
+});
+//=> 'http://sindresorhus.com/?b=two&a=one&c=three'
+```
+
+
+## Related
+
+- [compare-urls](https://github.com/sindresorhus/compare-urls) - Compare URLs by first normalizing them
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/helloworld/node_modules/number-is-nan/index.js b/helloworld/node_modules/number-is-nan/index.js
new file mode 100755
index 0000000..79be4b9
--- /dev/null
+++ b/helloworld/node_modules/number-is-nan/index.js
@@ -0,0 +1,4 @@
+'use strict';
+module.exports = Number.isNaN || function (x) {
+	return x !== x;
+};
diff --git a/helloworld/node_modules/number-is-nan/license b/helloworld/node_modules/number-is-nan/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/number-is-nan/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/number-is-nan/readme.md b/helloworld/node_modules/number-is-nan/readme.md
new file mode 100755
index 0000000..2463508
--- /dev/null
+++ b/helloworld/node_modules/number-is-nan/readme.md
@@ -0,0 +1,28 @@
+# number-is-nan [![Build Status](https://travis-ci.org/sindresorhus/number-is-nan.svg?branch=master)](https://travis-ci.org/sindresorhus/number-is-nan)
+
+> ES2015 [`Number.isNaN()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isNaN) [ponyfill](https://ponyfill.com)
+
+
+## Install
+
+```
+$ npm install --save number-is-nan
+```
+
+
+## Usage
+
+```js
+var numberIsNan = require('number-is-nan');
+
+numberIsNan(NaN);
+//=> true
+
+numberIsNan('unicorn');
+//=> false
+```
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/object-component/History.md b/helloworld/node_modules/object-component/History.md
new file mode 100755
index 0000000..15e0ee0
--- /dev/null
+++ b/helloworld/node_modules/object-component/History.md
@@ -0,0 +1,10 @@
+
+0.0.3 / 2012-10-15 
+==================
+
+  * package: added `component` namespace (fixes #1)
+
+0.0.2 / 2012-09-20 
+==================
+
+  * add code smell to `.merge()`
diff --git a/helloworld/node_modules/object-component/Makefile b/helloworld/node_modules/object-component/Makefile
new file mode 100755
index 0000000..b6b9850
--- /dev/null
+++ b/helloworld/node_modules/object-component/Makefile
@@ -0,0 +1,16 @@
+
+build: components index.js
+	@component build
+
+components:
+	@Component install
+
+clean:
+	rm -fr build components template.js
+
+test:
+	@./node_modules/.bin/mocha \
+		--require should \
+		--reporter spec
+
+.PHONY: clean test
diff --git a/helloworld/node_modules/object-component/Readme.md b/helloworld/node_modules/object-component/Readme.md
new file mode 100755
index 0000000..2c1f2d6
--- /dev/null
+++ b/helloworld/node_modules/object-component/Readme.md
@@ -0,0 +1,31 @@
+
+# object
+
+  Object utils.
+
+## API
+
+### .keys(obj)
+
+  Return the keys for `obj`.
+
+### .values(obj)
+
+  Return the values for `obj`.
+
+### .length(obj)
+
+  Return the number of keys for `obj`.
+
+### .isEmpty(obj)
+
+  Check if `obj` is empty.
+
+### .merge(a, b)
+
+  Merge object `b` into `a`, returns `a`.
+  Precedence is given to `b`.
+
+## License
+
+  MIT
\ No newline at end of file
diff --git a/helloworld/node_modules/object-component/component.json b/helloworld/node_modules/object-component/component.json
new file mode 100755
index 0000000..eebc82a
--- /dev/null
+++ b/helloworld/node_modules/object-component/component.json
@@ -0,0 +1,10 @@
+{
+  "name": "object",
+  "description": "Object keys / values / length",
+  "version": "0.0.3",
+  "keywords": ["object", "keys", "utility"],
+  "dependencies": {},
+  "scripts": [
+    "index.js"
+  ]
+}
\ No newline at end of file
diff --git a/helloworld/node_modules/object-component/index.js b/helloworld/node_modules/object-component/index.js
new file mode 100755
index 0000000..dba9eeb
--- /dev/null
+++ b/helloworld/node_modules/object-component/index.js
@@ -0,0 +1,84 @@
+
+/**
+ * HOP ref.
+ */
+
+var has = Object.prototype.hasOwnProperty;
+
+/**
+ * Return own keys in `obj`.
+ *
+ * @param {Object} obj
+ * @return {Array}
+ * @api public
+ */
+
+exports.keys = Object.keys || function(obj){
+  var keys = [];
+  for (var key in obj) {
+    if (has.call(obj, key)) {
+      keys.push(key);
+    }
+  }
+  return keys;
+};
+
+/**
+ * Return own values in `obj`.
+ *
+ * @param {Object} obj
+ * @return {Array}
+ * @api public
+ */
+
+exports.values = function(obj){
+  var vals = [];
+  for (var key in obj) {
+    if (has.call(obj, key)) {
+      vals.push(obj[key]);
+    }
+  }
+  return vals;
+};
+
+/**
+ * Merge `b` into `a`.
+ *
+ * @param {Object} a
+ * @param {Object} b
+ * @return {Object} a
+ * @api public
+ */
+
+exports.merge = function(a, b){
+  for (var key in b) {
+    if (has.call(b, key)) {
+      a[key] = b[key];
+    }
+  }
+  return a;
+};
+
+/**
+ * Return length of `obj`.
+ *
+ * @param {Object} obj
+ * @return {Number}
+ * @api public
+ */
+
+exports.length = function(obj){
+  return exports.keys(obj).length;
+};
+
+/**
+ * Check if `obj` is empty.
+ *
+ * @param {Object} obj
+ * @return {Boolean}
+ * @api public
+ */
+
+exports.isEmpty = function(obj){
+  return 0 == exports.length(obj);
+};
\ No newline at end of file
diff --git a/helloworld/node_modules/object-component/package.json b/helloworld/node_modules/object-component/package.json
new file mode 100755
index 0000000..d9055e9
--- /dev/null
+++ b/helloworld/node_modules/object-component/package.json
@@ -0,0 +1,39 @@
+{
+  "_from": "object-component@0.0.3",
+  "_id": "object-component@0.0.3",
+  "_inBundle": false,
+  "_integrity": "sha1-8MaapQ78lbhmwYb0AKM3acsvEpE=",
+  "_location": "/object-component",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "object-component@0.0.3",
+    "name": "object-component",
+    "escapedName": "object-component",
+    "rawSpec": "0.0.3",
+    "saveSpec": null,
+    "fetchSpec": "0.0.3"
+  },
+  "_requiredBy": [
+    "/socket.io-client"
+  ],
+  "_resolved": "https://registry.npmjs.org/object-component/-/object-component-0.0.3.tgz",
+  "_shasum": "f0c69aa50efc95b866c186f400a33769cb2f1291",
+  "_spec": "object-component@0.0.3",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/socket.io-client",
+  "bundleDependencies": false,
+  "component": {
+    "scripts": {
+      "object/index.js": "index.js"
+    }
+  },
+  "deprecated": false,
+  "description": "Object utils.",
+  "devDependencies": {
+    "mocha": "*",
+    "should": "*"
+  },
+  "name": "object-component",
+  "version": "0.0.3"
+}
diff --git a/helloworld/node_modules/object-component/test/object.js b/helloworld/node_modules/object-component/test/object.js
new file mode 100755
index 0000000..23a7423
--- /dev/null
+++ b/helloworld/node_modules/object-component/test/object.js
@@ -0,0 +1,48 @@
+
+/**
+ * Module dependencies.
+ */
+
+var object = require('..');
+
+describe('.keys(obj)', function(){
+  it('should return the keys of an object', function(){
+    var obj = { name: 'tobi', age: 1 };
+    object.keys(obj).should.eql(['name', 'age']);
+  })
+})
+
+describe('.values(obj)', function(){
+  it('should return the values of an object', function(){
+    var obj = { name: 'tobi', age: 1 };
+    object.values(obj).should.eql(['tobi', 1]);
+  })
+})
+
+describe('.length(obj)', function(){
+  it('should return key count', function(){
+    var obj = { name: 'tobi', age: 1 };
+    object.length(obj).should.equal(2);
+  })
+})
+
+describe('.merge(a, b)', function(){
+  it('should merge two objects', function(){
+    var a = { foo: 'bar' };
+    var b = { bar: 'baz' };
+    object.merge(a, b).should.eql({ foo: 'bar', bar: 'baz' });
+  })
+
+  it('should give precedence to b', function(){
+    var a = { foo: 'bar' };
+    var b = { foo: 'baz' };
+    object.merge(a, b).should.eql({ foo: 'baz' });
+  })
+})
+
+describe('.isEmpty()', function(){
+  it('should check if the object is empty', function(){
+    object.isEmpty({}).should.be.true;
+    object.isEmpty({ foo: 'bar' }).should.be.false;
+  })
+})
\ No newline at end of file
diff --git a/helloworld/node_modules/once/LICENSE b/helloworld/node_modules/once/LICENSE
new file mode 100755
index 0000000..19129e3
--- /dev/null
+++ b/helloworld/node_modules/once/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/helloworld/node_modules/once/README.md b/helloworld/node_modules/once/README.md
new file mode 100755
index 0000000..1f1ffca
--- /dev/null
+++ b/helloworld/node_modules/once/README.md
@@ -0,0 +1,79 @@
+# once
+
+Only call a function once.
+
+## usage
+
+```javascript
+var once = require('once')
+
+function load (file, cb) {
+  cb = once(cb)
+  loader.load('file')
+  loader.once('load', cb)
+  loader.once('error', cb)
+}
+```
+
+Or add to the Function.prototype in a responsible way:
+
+```javascript
+// only has to be done once
+require('once').proto()
+
+function load (file, cb) {
+  cb = cb.once()
+  loader.load('file')
+  loader.once('load', cb)
+  loader.once('error', cb)
+}
+```
+
+Ironically, the prototype feature makes this module twice as
+complicated as necessary.
+
+To check whether you function has been called, use `fn.called`. Once the
+function is called for the first time the return value of the original
+function is saved in `fn.value` and subsequent calls will continue to
+return this value.
+
+```javascript
+var once = require('once')
+
+function load (cb) {
+  cb = once(cb)
+  var stream = createStream()
+  stream.once('data', cb)
+  stream.once('end', function () {
+    if (!cb.called) cb(new Error('not found'))
+  })
+}
+```
+
+## `once.strict(func)`
+
+Throw an error if the function is called twice.
+
+Some functions are expected to be called only once. Using `once` for them would
+potentially hide logical errors.
+
+In the example below, the `greet` function has to call the callback only once:
+
+```javascript
+function greet (name, cb) {
+  // return is missing from the if statement
+  // when no name is passed, the callback is called twice
+  if (!name) cb('Hello anonymous')
+  cb('Hello ' + name)
+}
+
+function log (msg) {
+  console.log(msg)
+}
+
+// this will print 'Hello anonymous' but the logical error will be missed
+greet(null, once(msg))
+
+// once.strict will print 'Hello anonymous' and throw an error when the callback will be called the second time
+greet(null, once.strict(msg))
+```
diff --git a/helloworld/node_modules/once/once.js b/helloworld/node_modules/once/once.js
new file mode 100755
index 0000000..2354067
--- /dev/null
+++ b/helloworld/node_modules/once/once.js
@@ -0,0 +1,42 @@
+var wrappy = require('wrappy')
+module.exports = wrappy(once)
+module.exports.strict = wrappy(onceStrict)
+
+once.proto = once(function () {
+  Object.defineProperty(Function.prototype, 'once', {
+    value: function () {
+      return once(this)
+    },
+    configurable: true
+  })
+
+  Object.defineProperty(Function.prototype, 'onceStrict', {
+    value: function () {
+      return onceStrict(this)
+    },
+    configurable: true
+  })
+})
+
+function once (fn) {
+  var f = function () {
+    if (f.called) return f.value
+    f.called = true
+    return f.value = fn.apply(this, arguments)
+  }
+  f.called = false
+  return f
+}
+
+function onceStrict (fn) {
+  var f = function () {
+    if (f.called)
+      throw new Error(f.onceError)
+    f.called = true
+    return f.value = fn.apply(this, arguments)
+  }
+  var name = fn.name || 'Function wrapped with `once`'
+  f.onceError = name + " shouldn't be called more than once"
+  f.called = false
+  return f
+}
diff --git a/helloworld/node_modules/openurl/README.md b/helloworld/node_modules/openurl/README.md
new file mode 100755
index 0000000..f66356f
--- /dev/null
+++ b/helloworld/node_modules/openurl/README.md
@@ -0,0 +1,29 @@
+openurl – Node.js module for opening URLs
+=========================================
+
+openurl is a Node.js module for opening a URL via the operating system. This will usually trigger actions such as:
+
+- http URLs: open the default browser
+- mailto URLs: open the default email client
+- file URLs: open a window showing the directory (on OS X)
+
+Example interaction on the Node.js REPL:
+
+    > require("openurl").open("http://rauschma.de")
+    > require("openurl").open("mailto:john@example.com")
+    
+You can generate emails as follows:
+
+    require("openurl").mailto(["john@example.com", "jane@example.com"],
+        { subject: "Hello!", body: "This is\nan automatically sent email!\n" });
+    
+Install via npm:
+
+    npm install openurl
+
+I’m not yet terribly familiar with implementing npm packages, so any feedback is welcome
+(especially experience reports on Windows and Linux, which I can’t test on).
+
+Related reading:
+
+- [Write your shell scripts in JavaScript, via Node.js](http://www.2ality.com/2011/12/nodejs-shell-scripting.html)
\ No newline at end of file
diff --git a/helloworld/node_modules/openurl/openurl.js b/helloworld/node_modules/openurl/openurl.js
new file mode 100755
index 0000000..d8c17a0
--- /dev/null
+++ b/helloworld/node_modules/openurl/openurl.js
@@ -0,0 +1,68 @@
+var spawn = require('child_process').spawn;
+
+var command;
+
+switch(process.platform) {
+    case 'darwin':
+        command = 'open';
+        break;
+    case 'win32':
+        command = 'explorer.exe';
+        break;
+    case 'linux':
+        command = 'xdg-open';
+        break;
+    default:
+        throw new Error('Unsupported platform: ' + process.platform);
+}
+
+/**
+ * Error handling is deliberately minimal, as this function is to be easy to use for shell scripting
+ *
+ * @param url The URL to open
+ * @param callback A function with a single error argument. Optional.
+ */
+
+function open(url, callback) {
+    var child = spawn(command, [url]);
+    var errorText = "";
+    child.stderr.setEncoding('utf8');
+    child.stderr.on('data', function (data) {
+        errorText += data;
+    });
+    child.stderr.on('end', function () {
+        if (errorText.length > 0) {
+            var error = new Error(errorText);
+            if (callback) {
+                callback(error);
+            } else {
+                throw error;
+            }
+        } else if (callback) {
+            callback(error);
+        }
+    });
+}
+
+/**
+ * @param fields Common fields are: "subject", "body".
+ *     Some email apps let you specify arbitrary headers here.
+ * @param recipientsSeparator Default is ",". Use ";" for Outlook.
+ */
+function mailto(recipients, fields, recipientsSeparator, callback) {
+    recipientsSeparator = recipientsSeparator || ",";
+
+    var url = "mailto:"+recipients.join(recipientsSeparator);
+    Object.keys(fields).forEach(function (key, index) {
+        if (index === 0) {
+            url += "?";
+        } else {
+            url += "&";
+        }
+        url += key + "=" + encodeURIComponent(fields[key]);
+    });
+    open(url, callback);
+}
+
+exports.open = open;
+exports.mailto = mailto;
\ No newline at end of file
diff --git a/helloworld/node_modules/openurl/package.json b/helloworld/node_modules/openurl/package.json
new file mode 100755
index 0000000..1b00c37
--- /dev/null
+++ b/helloworld/node_modules/openurl/package.json
@@ -0,0 +1,48 @@
+{
+  "_from": "openurl@1.1.1",
+  "_id": "openurl@1.1.1",
+  "_inBundle": false,
+  "_integrity": "sha1-OHW0sO96UsFW8NtB1GCduw+Us4c=",
+  "_location": "/openurl",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "openurl@1.1.1",
+    "name": "openurl",
+    "escapedName": "openurl",
+    "rawSpec": "1.1.1",
+    "saveSpec": null,
+    "fetchSpec": "1.1.1"
+  },
+  "_requiredBy": [
+    "/localtunnel"
+  ],
+  "_resolved": "https://registry.npmjs.org/openurl/-/openurl-1.1.1.tgz",
+  "_shasum": "3875b4b0ef7a52c156f0db41d4609dbb0f94b387",
+  "_spec": "openurl@1.1.1",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/localtunnel",
+  "author": {
+    "name": "Axel Rauschmayer",
+    "email": "axe@rauschma.de"
+  },
+  "bugs": {
+    "url": "https://github.com/rauschma/openurl/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "Open a URL via the operating system (http: in default browser, mailto: in mail client etc.",
+  "homepage": "https://github.com/rauschma/openurl#readme",
+  "keywords": [
+    "desktop",
+    "browser"
+  ],
+  "license": "MIT",
+  "main": "./openurl.js",
+  "name": "openurl",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/rauschma/openurl.git"
+  },
+  "version": "1.1.1"
+}
diff --git a/helloworld/node_modules/os-locale/index.js b/helloworld/node_modules/os-locale/index.js
new file mode 100755
index 0000000..2c8a006
--- /dev/null
+++ b/helloworld/node_modules/os-locale/index.js
@@ -0,0 +1,127 @@
+'use strict';
+var childProcess = require('child_process');
+var execFileSync = childProcess.execFileSync;
+var lcid = require('lcid');
+var defaultOpts = {spawn: true};
+var cache;
+
+function fallback() {
+	cache = 'en_US';
+	return cache;
+}
+
+function getEnvLocale(env) {
+	env = env || process.env;
+	var ret = env.LC_ALL || env.LC_MESSAGES || env.LANG || env.LANGUAGE;
+	cache = getLocale(ret);
+	return ret;
+}
+
+function parseLocale(x) {
+	var env = x.split('\n').reduce(function (env, def) {
+		def = def.split('=');
+		env[def[0]] = def[1];
+		return env;
+	}, {});
+	return getEnvLocale(env);
+}
+
+function getLocale(str) {
+	return (str && str.replace(/[.:].*/, '')) || fallback();
+}
+
+module.exports = function (opts, cb) {
+	if (typeof opts === 'function') {
+		cb = opts;
+		opts = defaultOpts;
+	} else {
+		opts = opts || defaultOpts;
+	}
+
+	if (cache || getEnvLocale() || opts.spawn === false) {
+		setImmediate(cb, null, cache);
+		return;
+	}
+
+	var getAppleLocale = function () {
+		childProcess.execFile('defaults', ['read', '-g', 'AppleLocale'], function (err, stdout) {
+			if (err) {
+				fallback();
+				return;
+			}
+
+			cache = stdout.trim() || fallback();
+			cb(null, cache);
+		});
+	};
+
+	if (process.platform === 'win32') {
+		childProcess.execFile('wmic', ['os', 'get', 'locale'], function (err, stdout) {
+			if (err) {
+				fallback();
+				return;
+			}
+
+			var lcidCode = parseInt(stdout.replace('Locale', ''), 16);
+			cache = lcid.from(lcidCode) || fallback();
+			cb(null, cache);
+		});
+	} else {
+		childProcess.execFile('locale', function (err, stdout) {
+			if (err) {
+				fallback();
+				return;
+			}
+
+			var res = parseLocale(stdout);
+
+			if (!res && process.platform === 'darwin') {
+				getAppleLocale();
+				return;
+			}
+
+			cache = getLocale(res);
+			cb(null, cache);
+		});
+	}
+};
+
+module.exports.sync = function (opts) {
+	opts = opts || defaultOpts;
+
+	if (cache || getEnvLocale() || !execFileSync || opts.spawn === false) {
+		return cache;
+	}
+
+	if (process.platform === 'win32') {
+		var stdout;
+
+		try {
+			stdout = execFileSync('wmic', ['os', 'get', 'locale'], {encoding: 'utf8'});
+		} catch (err) {
+			return fallback();
+		}
+
+		var lcidCode = parseInt(stdout.replace('Locale', ''), 16);
+		cache = lcid.from(lcidCode) || fallback();
+		return cache;
+	}
+
+	var res;
+
+	try {
+		res = parseLocale(execFileSync('locale', {encoding: 'utf8'}));
+	} catch (err) {}
+
+	if (!res && process.platform === 'darwin') {
+		try {
+			cache = execFileSync('defaults', ['read', '-g', 'AppleLocale'], {encoding: 'utf8'}).trim() || fallback();
+			return cache;
+		} catch (err) {
+			return fallback();
+		}
+	}
+
+	cache = getLocale(res);
+	return cache;
+};
diff --git a/helloworld/node_modules/os-locale/license b/helloworld/node_modules/os-locale/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/os-locale/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/os-locale/readme.md b/helloworld/node_modules/os-locale/readme.md
new file mode 100755
index 0000000..b80a0bd
--- /dev/null
+++ b/helloworld/node_modules/os-locale/readme.md
@@ -0,0 +1,47 @@
+# os-locale [![Build Status](https://travis-ci.org/sindresorhus/os-locale.svg?branch=master)](https://travis-ci.org/sindresorhus/os-locale)
+
+> Get the system [locale](http://en.wikipedia.org/wiki/Locale)
+
+Useful for localizing your module or app.
+
+POSIX systems: The returned locale refers to the [`LC_MESSAGE`](http://www.gnu.org/software/libc/manual/html_node/Locale-Categories.html#Locale-Categories) category, suitable for selecting the language used in the user interface for message translation.
+
+
+## Install
+
+```
+$ npm install --save os-locale
+```
+
+
+## Usage
+
+```js
+var osLocale = require('os-locale');
+
+osLocale(function (err, locale) {
+	console.log(locale);
+	//=> 'en_US'
+});
+```
+
+
+## API
+
+### osLocale([options], callback(error, locale))
+
+### osLocale.sync([options])
+
+Returns the locale.
+
+#### options.spawn
+
+Type: `boolean`  
+Default: `true`
+
+Set to `false` to avoid spawning subprocesses and instead only resolve the locale from environment variables.
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/p-cancelable/index.d.ts b/helloworld/node_modules/p-cancelable/index.d.ts
new file mode 100755
index 0000000..316d636
--- /dev/null
+++ b/helloworld/node_modules/p-cancelable/index.d.ts
@@ -0,0 +1,168 @@
+/**
+ * Accepts a function that is called when the promise is canceled.
+ *
+ * You're not required to call this function. You can call this function multiple times to add multiple cancel handlers.
+ */
+export interface OnCancelFunction {
+	(cancelHandler: () => void): void;
+	shouldReject: boolean;
+}
+
+declare class PCancelable<ValueType> extends Promise<ValueType> {
+	/**
+	 * Convenience method to make your promise-returning or async function cancelable.
+	 *
+	 * @param fn - A promise-returning function. The function you specify will have `onCancel` appended to its parameters.
+	 *
+	 * @example
+	 *
+	 * import PCancelable from 'p-cancelable';
+	 *
+	 * const fn = PCancelable.fn((input, onCancel) => {
+	 * 	const job = new Job();
+	 *
+	 * 	onCancel(() => {
+	 * 		job.cleanup();
+	 * 	});
+	 *
+	 * 	return job.start(); //=> Promise
+	 * });
+	 *
+	 * const cancelablePromise = fn('input'); //=> PCancelable
+	 *
+	 * // …
+	 *
+	 * cancelablePromise.cancel();
+	 */
+	static fn<ReturnType>(
+		userFn: (onCancel: OnCancelFunction) => PromiseLike<ReturnType>
+	): () => PCancelable<ReturnType>;
+	static fn<Agument1Type, ReturnType>(
+		userFn: (
+			argument1: Agument1Type,
+			onCancel: OnCancelFunction
+		) => PromiseLike<ReturnType>
+	): (argument1: Agument1Type) => PCancelable<ReturnType>;
+	static fn<Agument1Type, Agument2Type, ReturnType>(
+		userFn: (
+			argument1: Agument1Type,
+			argument2: Agument2Type,
+			onCancel: OnCancelFunction
+		) => PromiseLike<ReturnType>
+	): (
+		argument1: Agument1Type,
+		argument2: Agument2Type
+	) => PCancelable<ReturnType>;
+	static fn<Agument1Type, Agument2Type, Agument3Type, ReturnType>(
+		userFn: (
+			argument1: Agument1Type,
+			argument2: Agument2Type,
+			argument3: Agument3Type,
+			onCancel: OnCancelFunction
+		) => PromiseLike<ReturnType>
+	): (
+		argument1: Agument1Type,
+		argument2: Agument2Type,
+		argument3: Agument3Type
+	) => PCancelable<ReturnType>;
+	static fn<Agument1Type, Agument2Type, Agument3Type, Agument4Type, ReturnType>(
+		userFn: (
+			argument1: Agument1Type,
+			argument2: Agument2Type,
+			argument3: Agument3Type,
+			argument4: Agument4Type,
+			onCancel: OnCancelFunction
+		) => PromiseLike<ReturnType>
+	): (
+		argument1: Agument1Type,
+		argument2: Agument2Type,
+		argument3: Agument3Type,
+		argument4: Agument4Type
+	) => PCancelable<ReturnType>;
+	static fn<
+		Agument1Type,
+		Agument2Type,
+		Agument3Type,
+		Agument4Type,
+		Agument5Type,
+		ReturnType
+	>(
+		userFn: (
+			argument1: Agument1Type,
+			argument2: Agument2Type,
+			argument3: Agument3Type,
+			argument4: Agument4Type,
+			argument5: Agument5Type,
+			onCancel: OnCancelFunction
+		) => PromiseLike<ReturnType>
+	): (
+		argument1: Agument1Type,
+		argument2: Agument2Type,
+		argument3: Agument3Type,
+		argument4: Agument4Type,
+		argument5: Agument5Type
+	) => PCancelable<ReturnType>;
+	static fn<ReturnType>(
+		userFn: (...arguments: unknown[]) => PromiseLike<ReturnType>
+	): (...arguments: unknown[]) => PCancelable<ReturnType>;
+
+	/**
+	 * Create a promise that can be canceled.
+	 *
+	 * Can be constructed in the same was as a [`Promise` constructor](https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Promise), but with an appended `onCancel` parameter in `executor`. `PCancelable` is a subclass of `Promise`.
+	 *
+	 * Cancelling will reject the promise with `CancelError`. To avoid that, set `onCancel.shouldReject` to `false`.
+	 *
+	 * @example
+	 *
+	 * import PCancelable from 'p-cancelable';
+	 *
+	 * const cancelablePromise = new PCancelable((resolve, reject, onCancel) => {
+	 * 	const job = new Job();
+	 *
+	 * 	onCancel.shouldReject = false;
+	 * 	onCancel(() => {
+	 * 		job.stop();
+	 * 	});
+	 *
+	 * 	job.on('finish', resolve);
+	 * });
+	 *
+	 * cancelablePromise.cancel(); // Doesn't throw an error
+	 */
+	constructor(
+		executor: (
+			resolve: (value?: ValueType | PromiseLike<ValueType>) => void,
+			reject: (reason?: unknown) => void,
+			onCancel: OnCancelFunction
+		) => void
+	);
+
+	/**
+	 * Whether the promise is canceled.
+	 */
+	readonly isCanceled: boolean;
+
+	/**
+	 * Cancel the promise and optionally provide a reason.
+	 *
+	 * The cancellation is synchronous. Calling it after the promise has settled or multiple times does nothing.
+	 *
+	 * @param reason - The cancellation reason to reject the promise with.
+	 */
+	cancel(reason?: string): void;
+}
+
+export default PCancelable;
+
+/**
+ * Rejection reason when `.cancel()` is called.
+ *
+ * It includes a `.isCanceled` property for convenience.
+ */
+export class CancelError extends Error {
+	readonly name: 'CancelError';
+	readonly isCanceled: true;
+
+	constructor(reason?: string);
+}
diff --git a/helloworld/node_modules/p-cancelable/index.js b/helloworld/node_modules/p-cancelable/index.js
new file mode 100755
index 0000000..26bd42e
--- /dev/null
+++ b/helloworld/node_modules/p-cancelable/index.js
@@ -0,0 +1,103 @@
+'use strict';
+
+class CancelError extends Error {
+	constructor(reason) {
+		super(reason || 'Promise was canceled');
+		this.name = 'CancelError';
+	}
+
+	get isCanceled() {
+		return true;
+	}
+}
+
+class PCancelable {
+	static fn(userFn) {
+		return (...args) => {
+			return new PCancelable((resolve, reject, onCancel) => {
+				args.push(onCancel);
+				userFn(...args).then(resolve, reject);
+			});
+		};
+	}
+
+	constructor(executor) {
+		this._cancelHandlers = [];
+		this._isPending = true;
+		this._isCanceled = false;
+		this._rejectOnCancel = true;
+
+		this._promise = new Promise((resolve, reject) => {
+			this._reject = reject;
+
+			const onResolve = value => {
+				this._isPending = false;
+				resolve(value);
+			};
+
+			const onReject = error => {
+				this._isPending = false;
+				reject(error);
+			};
+
+			const onCancel = handler => {
+				this._cancelHandlers.push(handler);
+			};
+
+			Object.defineProperties(onCancel, {
+				shouldReject: {
+					get: () => this._rejectOnCancel,
+					set: bool => {
+						this._rejectOnCancel = bool;
+					}
+				}
+			});
+
+			return executor(onResolve, onReject, onCancel);
+		});
+	}
+
+	then(onFulfilled, onRejected) {
+		return this._promise.then(onFulfilled, onRejected);
+	}
+
+	catch(onRejected) {
+		return this._promise.catch(onRejected);
+	}
+
+	finally(onFinally) {
+		return this._promise.finally(onFinally);
+	}
+
+	cancel(reason) {
+		if (!this._isPending || this._isCanceled) {
+			return;
+		}
+
+		if (this._cancelHandlers.length > 0) {
+			try {
+				for (const handler of this._cancelHandlers) {
+					handler();
+				}
+			} catch (error) {
+				this._reject(error);
+			}
+		}
+
+		this._isCanceled = true;
+		if (this._rejectOnCancel) {
+			this._reject(new CancelError(reason));
+		}
+	}
+
+	get isCanceled() {
+		return this._isCanceled;
+	}
+}
+
+Object.setPrototypeOf(PCancelable.prototype, Promise.prototype);
+
+module.exports = PCancelable;
+module.exports.default = PCancelable;
+
+module.exports.CancelError = CancelError;
diff --git a/helloworld/node_modules/p-cancelable/license b/helloworld/node_modules/p-cancelable/license
new file mode 100755
index 0000000..e7af2f7
--- /dev/null
+++ b/helloworld/node_modules/p-cancelable/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/p-cancelable/readme.md b/helloworld/node_modules/p-cancelable/readme.md
new file mode 100755
index 0000000..b66e96a
--- /dev/null
+++ b/helloworld/node_modules/p-cancelable/readme.md
@@ -0,0 +1,155 @@
+# p-cancelable [![Build Status](https://travis-ci.org/sindresorhus/p-cancelable.svg?branch=master)](https://travis-ci.org/sindresorhus/p-cancelable)
+
+> Create a promise that can be canceled
+
+Useful for animation, loading resources, long-running async computations, async iteration, etc.
+
+
+## Install
+
+```
+$ npm install p-cancelable
+```
+
+
+## Usage
+
+```js
+const PCancelable = require('p-cancelable');
+
+const cancelablePromise = new PCancelable((resolve, reject, onCancel) => {
+	const worker = new SomeLongRunningOperation();
+
+	onCancel(() => {
+		worker.close();
+	});
+
+	worker.on('finish', resolve);
+	worker.on('error', reject);
+});
+
+(async () => {
+	try {
+		console.log('Operation finished successfully:', await cancelablePromise);
+	} catch (error) {
+		if (cancelablePromise.isCanceled) {
+			// Handle the cancelation here
+			console.log('Operation was canceled');
+			return;
+		}
+
+		throw error;
+	}
+})();
+
+// Cancel the operation after 10 seconds
+setTimeout(() => {
+	cancelablePromise.cancel('Unicorn has changed its color');
+}, 10000);
+```
+
+
+## API
+
+### new PCancelable(executor)
+
+Same as the [`Promise` constructor](https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Promise), but with an appended `onCancel` parameter in `executor`.<br>
+Cancelling will reject the promise with `PCancelable.CancelError`. To avoid that, set `onCancel.shouldReject` to `false`.
+
+```js
+const PCancelable = require('p-cancelable');
+
+const cancelablePromise = new PCancelable((resolve, reject, onCancel) => {
+	const job = new Job();
+
+	onCancel.shouldReject = false;
+	onCancel(() => {
+		job.stop();
+	});
+
+	job.on('finish', resolve);
+});
+
+cancelablePromise.cancel(); // Doesn't throw an error
+```
+
+`PCancelable` is a subclass of `Promise`.
+
+#### onCanceled(fn)
+
+Type: `Function`
+
+Accepts a function that is called when the promise is canceled.
+
+You're not required to call this function. You can call this function multiple times to add multiple cancel handlers.
+
+### PCancelable#cancel([reason])
+
+Type: `Function`
+
+Cancel the promise and optionally provide a reason.
+
+The cancellation is synchronous. Calling it after the promise has settled or multiple times does nothing.
+
+### PCancelable#isCanceled
+
+Type: `boolean`
+
+Whether the promise is canceled.
+
+### PCancelable.CancelError
+
+Type: `Error`
+
+Rejection reason when `.cancel()` is called.
+
+It includes a `.isCanceled` property for convenience.
+
+### PCancelable.fn(fn)
+
+Convenience method to make your promise-returning or async function cancelable.
+
+The function you specify will have `onCancel` appended to its parameters.
+
+```js
+const PCancelable = require('p-cancelable');
+
+const fn = PCancelable.fn((input, onCancel) => {
+	const job = new Job();
+
+	onCancel(() => {
+		job.cleanup();
+	});
+
+	return job.start(); //=> Promise
+});
+
+const cancelablePromise = fn('input'); //=> PCancelable
+
+// …
+
+cancelablePromise.cancel();
+```
+
+
+## FAQ
+
+### Cancelable vs. Cancellable
+
+[In American English, the verb cancel is usually inflected canceled and canceling—with one l.](http://grammarist.com/spelling/cancel/)<br>Both a [browser API](https://developer.mozilla.org/en-US/docs/Web/API/Event/cancelable) and the [Cancelable Promises proposal](https://github.com/tc39/proposal-cancelable-promises) use this spelling.
+
+### What about the official [Cancelable Promises proposal](https://github.com/tc39/proposal-cancelable-promises)?
+
+~~It's still an early draft and I don't really like its current direction. It complicates everything and will require deep changes in the ecosystem to adapt to it. And the way you have to use cancel tokens is verbose and convoluted. I much prefer the more pragmatic and less invasive approach in this module.~~ The proposal was withdrawn.
+
+
+## Related
+
+- [p-progress](https://github.com/sindresorhus/p-progress) - Create a promise that reports progress
+- [p-lazy](https://github.com/sindresorhus/p-lazy) - Create a lazy promise that defers execution until `.then()` or `.catch()` is called
+- [More…](https://github.com/sindresorhus/promise-fun)
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/helloworld/node_modules/parse-json/index.js b/helloworld/node_modules/parse-json/index.js
new file mode 100755
index 0000000..04add8a
--- /dev/null
+++ b/helloworld/node_modules/parse-json/index.js
@@ -0,0 +1,35 @@
+'use strict';
+var errorEx = require('error-ex');
+var fallback = require('./vendor/parse');
+
+var JSONError = errorEx('JSONError', {
+	fileName: errorEx.append('in %s')
+});
+
+module.exports = function (x, reviver, filename) {
+	if (typeof reviver === 'string') {
+		filename = reviver;
+		reviver = null;
+	}
+
+	try {
+		try {
+			return JSON.parse(x, reviver);
+		} catch (err) {
+			fallback.parse(x, {
+				mode: 'json',
+				reviver: reviver
+			});
+
+			throw err;
+		}
+	} catch (err) {
+		var jsonErr = new JSONError(err);
+
+		if (filename) {
+			jsonErr.fileName = filename;
+		}
+
+		throw jsonErr;
+	}
+};
diff --git a/helloworld/node_modules/parse-json/license b/helloworld/node_modules/parse-json/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/parse-json/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/parse-json/readme.md b/helloworld/node_modules/parse-json/readme.md
new file mode 100755
index 0000000..ca96e60
--- /dev/null
+++ b/helloworld/node_modules/parse-json/readme.md
@@ -0,0 +1,83 @@
+# parse-json [![Build Status](https://travis-ci.org/sindresorhus/parse-json.svg?branch=master)](https://travis-ci.org/sindresorhus/parse-json)
+
+> Parse JSON with more helpful errors
+
+
+## Install
+
+```
+$ npm install --save parse-json
+```
+
+
+## Usage
+
+```js
+var parseJson = require('parse-json');
+var json = '{\n\t"foo": true,\n}';
+
+
+JSON.parse(json);
+/*
+undefined:3
+}
+^
+SyntaxError: Unexpected token }
+*/
+
+
+parseJson(json);
+/*
+JSONError: Trailing comma in object at 3:1
+}
+^
+*/
+
+
+parseJson(json, 'foo.json');
+/*
+JSONError: Trailing comma in object at 3:1 in foo.json
+}
+^
+*/
+
+
+// you can also add the filename at a later point
+try {
+	parseJson(json);
+} catch (err) {
+	err.fileName = 'foo.json';
+	throw err;
+}
+/*
+JSONError: Trailing comma in object at 3:1 in foo.json
+}
+^
+*/
+```
+
+## API
+
+### parseJson(input, [reviver], [filename])
+
+#### input
+
+Type: `string`
+
+#### reviver
+
+Type: `function`
+
+Prescribes how the value originally produced by parsing is transformed, before being returned. See [`JSON.parse` docs](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse#Using_the_reviver_parameter
+) for more.
+
+#### filename
+
+Type: `string`
+
+Filename displayed in the error message.
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/parse-json/vendor/parse.js b/helloworld/node_modules/parse-json/vendor/parse.js
new file mode 100755
index 0000000..5f9fe99
--- /dev/null
+++ b/helloworld/node_modules/parse-json/vendor/parse.js
@@ -0,0 +1,752 @@
+/*
+ * Author: Alex Kocharin <alex@kocharin.ru>
+ * GIT: https://github.com/rlidwka/jju
+ * License: WTFPL, grab your copy here: http://www.wtfpl.net/txt/copying/
+ */
+
+// RTFM: http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf
+
+var Uni = require('./unicode')
+
+function isHexDigit(x) {
+  return (x >= '0' && x <= '9')
+      || (x >= 'A' && x <= 'F')
+      || (x >= 'a' && x <= 'f')
+}
+
+function isOctDigit(x) {
+  return x >= '0' && x <= '7'
+}
+
+function isDecDigit(x) {
+  return x >= '0' && x <= '9'
+}
+
+var unescapeMap = {
+  '\'': '\'',
+  '"' : '"',
+  '\\': '\\',
+  'b' : '\b',
+  'f' : '\f',
+  'n' : '\n',
+  'r' : '\r',
+  't' : '\t',
+  'v' : '\v',
+  '/' : '/',
+}
+
+function formatError(input, msg, position, lineno, column, json5) {
+  var result = msg + ' at ' + (lineno + 1) + ':' + (column + 1)
+    , tmppos = position - column - 1
+    , srcline = ''
+    , underline = ''
+
+  var isLineTerminator = json5 ? Uni.isLineTerminator : Uni.isLineTerminatorJSON
+
+  // output no more than 70 characters before the wrong ones
+  if (tmppos < position - 70) {
+    tmppos = position - 70
+  }
+
+  while (1) {
+    var chr = input[++tmppos]
+
+    if (isLineTerminator(chr) || tmppos === input.length) {
+      if (position >= tmppos) {
+        // ending line error, so show it after the last char
+        underline += '^'
+      }
+      break
+    }
+    srcline += chr
+
+    if (position === tmppos) {
+      underline += '^'
+    } else if (position > tmppos) {
+      underline += input[tmppos] === '\t' ? '\t' : ' '
+    }
+
+    // output no more than 78 characters on the string
+    if (srcline.length > 78) break
+  }
+
+  return result + '\n' + srcline + '\n' + underline
+}
+
+function parse(input, options) {
+  // parse as a standard JSON mode
+  var json5 = !(options.mode === 'json' || options.legacy)
+  var isLineTerminator = json5 ? Uni.isLineTerminator : Uni.isLineTerminatorJSON
+  var isWhiteSpace = json5 ? Uni.isWhiteSpace : Uni.isWhiteSpaceJSON
+
+  var length = input.length
+    , lineno = 0
+    , linestart = 0
+    , position = 0
+    , stack = []
+
+  var tokenStart = function() {}
+  var tokenEnd = function(v) {return v}
+
+  /* tokenize({
+       raw: '...',
+       type: 'whitespace'|'comment'|'key'|'literal'|'separator'|'newline',
+       value: 'number'|'string'|'whatever',
+       path: [...],
+     })
+  */
+  if (options._tokenize) {
+    ;(function() {
+      var start = null
+      tokenStart = function() {
+        if (start !== null) throw Error('internal error, token overlap')
+        start = position
+      }
+
+      tokenEnd = function(v, type) {
+        if (start != position) {
+          var hash = {
+            raw: input.substr(start, position-start),
+            type: type,
+            stack: stack.slice(0),
+          }
+          if (v !== undefined) hash.value = v
+          options._tokenize.call(null, hash)
+        }
+        start = null
+        return v
+      }
+    })()
+  }
+
+  function fail(msg) {
+    var column = position - linestart
+
+    if (!msg) {
+      if (position < length) {
+        var token = '\'' +
+          JSON
+            .stringify(input[position])
+            .replace(/^"|"$/g, '')
+            .replace(/'/g, "\\'")
+            .replace(/\\"/g, '"')
+          + '\''
+
+        if (!msg) msg = 'Unexpected token ' + token
+      } else {
+        if (!msg) msg = 'Unexpected end of input'
+      }
+    }
+
+    var error = SyntaxError(formatError(input, msg, position, lineno, column, json5))
+    error.row = lineno + 1
+    error.column = column + 1
+    throw error
+  }
+
+  function newline(chr) {
+    // account for <cr><lf>
+    if (chr === '\r' && input[position] === '\n') position++
+    linestart = position
+    lineno++
+  }
+
+  function parseGeneric() {
+    var result
+
+    while (position < length) {
+      tokenStart()
+      var chr = input[position++]
+
+      if (chr === '"' || (chr === '\'' && json5)) {
+        return tokenEnd(parseString(chr), 'literal')
+
+      } else if (chr === '{') {
+        tokenEnd(undefined, 'separator')
+        return parseObject()
+
+      } else if (chr === '[') {
+        tokenEnd(undefined, 'separator')
+        return parseArray()
+
+      } else if (chr === '-'
+             ||  chr === '.'
+             ||  isDecDigit(chr)
+                 //           + number       Infinity          NaN
+             ||  (json5 && (chr === '+' || chr === 'I' || chr === 'N'))
+      ) {
+        return tokenEnd(parseNumber(), 'literal')
+
+      } else if (chr === 'n') {
+        parseKeyword('null')
+        return tokenEnd(null, 'literal')
+
+      } else if (chr === 't') {
+        parseKeyword('true')
+        return tokenEnd(true, 'literal')
+
+      } else if (chr === 'f') {
+        parseKeyword('false')
+        return tokenEnd(false, 'literal')
+
+      } else {
+        position--
+        return tokenEnd(undefined)
+      }
+    }
+  }
+
+  function parseKey() {
+    var result
+
+    while (position < length) {
+      tokenStart()
+      var chr = input[position++]
+
+      if (chr === '"' || (chr === '\'' && json5)) {
+        return tokenEnd(parseString(chr), 'key')
+
+      } else if (chr === '{') {
+        tokenEnd(undefined, 'separator')
+        return parseObject()
+
+      } else if (chr === '[') {
+        tokenEnd(undefined, 'separator')
+        return parseArray()
+
+      } else if (chr === '.'
+             ||  isDecDigit(chr)
+      ) {
+        return tokenEnd(parseNumber(true), 'key')
+
+      } else if (json5
+             &&  Uni.isIdentifierStart(chr) || (chr === '\\' && input[position] === 'u')) {
+        // unicode char or a unicode sequence
+        var rollback = position - 1
+        var result = parseIdentifier()
+
+        if (result === undefined) {
+          position = rollback
+          return tokenEnd(undefined)
+        } else {
+          return tokenEnd(result, 'key')
+        }
+
+      } else {
+        position--
+        return tokenEnd(undefined)
+      }
+    }
+  }
+
+  function skipWhiteSpace() {
+    tokenStart()
+    while (position < length) {
+      var chr = input[position++]
+
+      if (isLineTerminator(chr)) {
+        position--
+        tokenEnd(undefined, 'whitespace')
+        tokenStart()
+        position++
+        newline(chr)
+        tokenEnd(undefined, 'newline')
+        tokenStart()
+
+      } else if (isWhiteSpace(chr)) {
+        // nothing
+
+      } else if (chr === '/'
+             && json5
+             && (input[position] === '/' || input[position] === '*')
+      ) {
+        position--
+        tokenEnd(undefined, 'whitespace')
+        tokenStart()
+        position++
+        skipComment(input[position++] === '*')
+        tokenEnd(undefined, 'comment')
+        tokenStart()
+
+      } else {
+        position--
+        break
+      }
+    }
+    return tokenEnd(undefined, 'whitespace')
+  }
+
+  function skipComment(multi) {
+    while (position < length) {
+      var chr = input[position++]
+
+      if (isLineTerminator(chr)) {
+        // LineTerminator is an end of singleline comment
+        if (!multi) {
+          // let parent function deal with newline
+          position--
+          return
+        }
+
+        newline(chr)
+
+      } else if (chr === '*' && multi) {
+        // end of multiline comment
+        if (input[position] === '/') {
+          position++
+          return
+        }
+
+      } else {
+        // nothing
+      }
+    }
+
+    if (multi) {
+      fail('Unclosed multiline comment')
+    }
+  }
+
+  function parseKeyword(keyword) {
+    // keyword[0] is not checked because it should've checked earlier
+    var _pos = position
+    var len = keyword.length
+    for (var i=1; i<len; i++) {
+      if (position >= length || keyword[i] != input[position]) {
+        position = _pos-1
+        fail()
+      }
+      position++
+    }
+  }
+
+  function parseObject() {
+    var result = options.null_prototype ? Object.create(null) : {}
+      , empty_object = {}
+      , is_non_empty = false
+
+    while (position < length) {
+      skipWhiteSpace()
+      var item1 = parseKey()
+      skipWhiteSpace()
+      tokenStart()
+      var chr = input[position++]
+      tokenEnd(undefined, 'separator')
+
+      if (chr === '}' && item1 === undefined) {
+        if (!json5 && is_non_empty) {
+          position--
+          fail('Trailing comma in object')
+        }
+        return result
+
+      } else if (chr === ':' && item1 !== undefined) {
+        skipWhiteSpace()
+        stack.push(item1)
+        var item2 = parseGeneric()
+        stack.pop()
+
+        if (item2 === undefined) fail('No value found for key ' + item1)
+        if (typeof(item1) !== 'string') {
+          if (!json5 || typeof(item1) !== 'number') {
+            fail('Wrong key type: ' + item1)
+          }
+        }
+
+        if ((item1 in empty_object || empty_object[item1] != null) && options.reserved_keys !== 'replace') {
+          if (options.reserved_keys === 'throw') {
+            fail('Reserved key: ' + item1)
+          } else {
+            // silently ignore it
+          }
+        } else {
+          if (typeof(options.reviver) === 'function') {
+            item2 = options.reviver.call(null, item1, item2)
+          }
+
+          if (item2 !== undefined) {
+            is_non_empty = true
+            Object.defineProperty(result, item1, {
+              value: item2,
+              enumerable: true,
+              configurable: true,
+              writable: true,
+            })
+          }
+        }
+
+        skipWhiteSpace()
+
+        tokenStart()
+        var chr = input[position++]
+        tokenEnd(undefined, 'separator')
+
+        if (chr === ',') {
+          continue
+
+        } else if (chr === '}') {
+          return result
+
+        } else {
+          fail()
+        }
+
+      } else {
+        position--
+        fail()
+      }
+    }
+
+    fail()
+  }
+
+  function parseArray() {
+    var result = []
+
+    while (position < length) {
+      skipWhiteSpace()
+      stack.push(result.length)
+      var item = parseGeneric()
+      stack.pop()
+      skipWhiteSpace()
+      tokenStart()
+      var chr = input[position++]
+      tokenEnd(undefined, 'separator')
+
+      if (item !== undefined) {
+        if (typeof(options.reviver) === 'function') {
+          item = options.reviver.call(null, String(result.length), item)
+        }
+        if (item === undefined) {
+          result.length++
+          item = true // hack for check below, not included into result
+        } else {
+          result.push(item)
+        }
+      }
+
+      if (chr === ',') {
+        if (item === undefined) {
+          fail('Elisions are not supported')
+        }
+
+      } else if (chr === ']') {
+        if (!json5 && item === undefined && result.length) {
+          position--
+          fail('Trailing comma in array')
+        }
+        return result
+
+      } else {
+        position--
+        fail()
+      }
+    }
+  }
+
+  function parseNumber() {
+    // rewind because we don't know first char
+    position--
+
+    var start = position
+      , chr = input[position++]
+      , t
+
+    var to_num = function(is_octal) {
+      var str = input.substr(start, position - start)
+
+      if (is_octal) {
+        var result = parseInt(str.replace(/^0o?/, ''), 8)
+      } else {
+        var result = Number(str)
+      }
+
+      if (Number.isNaN(result)) {
+        position--
+        fail('Bad numeric literal - "' + input.substr(start, position - start + 1) + '"')
+      } else if (!json5 && !str.match(/^-?(0|[1-9][0-9]*)(\.[0-9]+)?(e[+-]?[0-9]+)?$/i)) {
+        // additional restrictions imposed by json
+        position--
+        fail('Non-json numeric literal - "' + input.substr(start, position - start + 1) + '"')
+      } else {
+        return result
+      }
+    }
+
+    // ex: -5982475.249875e+29384
+    //     ^ skipping this
+    if (chr === '-' || (chr === '+' && json5)) chr = input[position++]
+
+    if (chr === 'N' && json5) {
+      parseKeyword('NaN')
+      return NaN
+    }
+
+    if (chr === 'I' && json5) {
+      parseKeyword('Infinity')
+
+      // returning +inf or -inf
+      return to_num()
+    }
+
+    if (chr >= '1' && chr <= '9') {
+      // ex: -5982475.249875e+29384
+      //        ^^^ skipping these
+      while (position < length && isDecDigit(input[position])) position++
+      chr = input[position++]
+    }
+
+    // special case for leading zero: 0.123456
+    if (chr === '0') {
+      chr = input[position++]
+
+      //             new syntax, "0o777"           old syntax, "0777"
+      var is_octal = chr === 'o' || chr === 'O' || isOctDigit(chr)
+      var is_hex = chr === 'x' || chr === 'X'
+
+      if (json5 && (is_octal || is_hex)) {
+        while (position < length
+           &&  (is_hex ? isHexDigit : isOctDigit)( input[position] )
+        ) position++
+
+        var sign = 1
+        if (input[start] === '-') {
+          sign = -1
+          start++
+        } else if (input[start] === '+') {
+          start++
+        }
+
+        return sign * to_num(is_octal)
+      }
+    }
+
+    if (chr === '.') {
+      // ex: -5982475.249875e+29384
+      //                ^^^ skipping these
+      while (position < length && isDecDigit(input[position])) position++
+      chr = input[position++]
+    }
+
+    if (chr === 'e' || chr === 'E') {
+      chr = input[position++]
+      if (chr === '-' || chr === '+') position++
+      // ex: -5982475.249875e+29384
+      //                       ^^^ skipping these
+      while (position < length && isDecDigit(input[position])) position++
+      chr = input[position++]
+    }
+
+    // we have char in the buffer, so count for it
+    position--
+    return to_num()
+  }
+
+  function parseIdentifier() {
+    // rewind because we don't know first char
+    position--
+
+    var result = ''
+
+    while (position < length) {
+      var chr = input[position++]
+
+      if (chr === '\\'
+      &&  input[position] === 'u'
+      &&  isHexDigit(input[position+1])
+      &&  isHexDigit(input[position+2])
+      &&  isHexDigit(input[position+3])
+      &&  isHexDigit(input[position+4])
+      ) {
+        // UnicodeEscapeSequence
+        chr = String.fromCharCode(parseInt(input.substr(position+1, 4), 16))
+        position += 5
+      }
+
+      if (result.length) {
+        // identifier started
+        if (Uni.isIdentifierPart(chr)) {
+          result += chr
+        } else {
+          position--
+          return result
+        }
+
+      } else {
+        if (Uni.isIdentifierStart(chr)) {
+          result += chr
+        } else {
+          return undefined
+        }
+      }
+    }
+
+    fail()
+  }
+
+  function parseString(endChar) {
+    // 7.8.4 of ES262 spec
+    var result = ''
+
+    while (position < length) {
+      var chr = input[position++]
+
+      if (chr === endChar) {
+        return result
+
+      } else if (chr === '\\') {
+        if (position >= length) fail()
+        chr = input[position++]
+
+        if (unescapeMap[chr] && (json5 || (chr != 'v' && chr != "'"))) {
+          result += unescapeMap[chr]
+
+        } else if (json5 && isLineTerminator(chr)) {
+          // line continuation
+          newline(chr)
+
+        } else if (chr === 'u' || (chr === 'x' && json5)) {
+          // unicode/character escape sequence
+          var off = chr === 'u' ? 4 : 2
+
+          // validation for \uXXXX
+          for (var i=0; i<off; i++) {
+            if (position >= length) fail()
+            if (!isHexDigit(input[position])) fail('Bad escape sequence')
+            position++
+          }
+
+          result += String.fromCharCode(parseInt(input.substr(position-off, off), 16))
+        } else if (json5 && isOctDigit(chr)) {
+          if (chr < '4' && isOctDigit(input[position]) && isOctDigit(input[position+1])) {
+            // three-digit octal
+            var digits = 3
+          } else if (isOctDigit(input[position])) {
+            // two-digit octal
+            var digits = 2
+          } else {
+            var digits = 1
+          }
+          position += digits - 1
+          result += String.fromCharCode(parseInt(input.substr(position-digits, digits), 8))
+          /*if (!isOctDigit(input[position])) {
+            // \0 is allowed still
+            result += '\0'
+          } else {
+            fail('Octal literals are not supported')
+          }*/
+
+        } else if (json5) {
+          // \X -> x
+          result += chr
+
+        } else {
+          position--
+          fail()
+        }
+
+      } else if (isLineTerminator(chr)) {
+        fail()
+
+      } else {
+        if (!json5 && chr.charCodeAt(0) < 32) {
+          position--
+          fail('Unexpected control character')
+        }
+
+        // SourceCharacter but not one of " or \ or LineTerminator
+        result += chr
+      }
+    }
+
+    fail()
+  }
+
+  skipWhiteSpace()
+  var return_value = parseGeneric()
+  if (return_value !== undefined || position < length) {
+    skipWhiteSpace()
+
+    if (position >= length) {
+      if (typeof(options.reviver) === 'function') {
+        return_value = options.reviver.call(null, '', return_value)
+      }
+      return return_value
+    } else {
+      fail()
+    }
+
+  } else {
+    if (position) {
+      fail('No data, only a whitespace')
+    } else {
+      fail('No data, empty input')
+    }
+  }
+}
+
+/*
+ * parse(text, options)
+ * or
+ * parse(text, reviver)
+ *
+ * where:
+ * text - string
+ * options - object
+ * reviver - function
+ */
+module.exports.parse = function parseJSON(input, options) {
+  // support legacy functions
+  if (typeof(options) === 'function') {
+    options = {
+      reviver: options
+    }
+  }
+
+  if (input === undefined) {
+    // parse(stringify(x)) should be equal x
+    // with JSON functions it is not 'cause of undefined
+    // so we're fixing it
+    return undefined
+  }
+
+  // JSON.parse compat
+  if (typeof(input) !== 'string') input = String(input)
+  if (options == null) options = {}
+  if (options.reserved_keys == null) options.reserved_keys = 'ignore'
+
+  if (options.reserved_keys === 'throw' || options.reserved_keys === 'ignore') {
+    if (options.null_prototype == null) {
+      options.null_prototype = true
+    }
+  }
+
+  try {
+    return parse(input, options)
+  } catch(err) {
+    // jju is a recursive parser, so JSON.parse("{{{{{{{") could blow up the stack
+    //
+    // this catch is used to skip all those internal calls
+    if (err instanceof SyntaxError && err.row != null && err.column != null) {
+      var old_err = err
+      err = SyntaxError(old_err.message)
+      err.column = old_err.column
+      err.row = old_err.row
+    }
+    throw err
+  }
+}
+
+module.exports.tokenize = function tokenizeJSON(input, options) {
+  if (options == null) options = {}
+
+  options._tokenize = function(smth) {
+    if (options._addstack) smth.stack.unshift.apply(smth.stack, options._addstack)
+    tokens.push(smth)
+  }
+
+  var tokens = []
+  tokens.data = module.exports.parse(input, options)
+  return tokens
+}
+
diff --git a/helloworld/node_modules/parse-json/vendor/unicode.js b/helloworld/node_modules/parse-json/vendor/unicode.js
new file mode 100755
index 0000000..1a29143
--- /dev/null
+++ b/helloworld/node_modules/parse-json/vendor/unicode.js
@@ -0,0 +1,71 @@
+
+// This is autogenerated with esprima tools, see:
+// https://github.com/ariya/esprima/blob/master/esprima.js
+//
+// PS: oh God, I hate Unicode
+
+// ECMAScript 5.1/Unicode v6.3.0 NonAsciiIdentifierStart:
+
+var Uni = module.exports
+
+module.exports.isWhiteSpace = function isWhiteSpace(x) {
+  // section 7.2, table 2
+  return x === '\u0020'
+      || x === '\u00A0'
+      || x === '\uFEFF' // <-- this is not a Unicode WS, only a JS one
+      || (x >= '\u0009' && x <= '\u000D') // 9 A B C D
+
+      // + whitespace characters from unicode, category Zs
+      || x === '\u1680'
+      || x === '\u180E'
+      || (x >= '\u2000' && x <= '\u200A') // 0 1 2 3 4 5 6 7 8 9 A
+      || x === '\u2028'
+      || x === '\u2029'
+      || x === '\u202F'
+      || x === '\u205F'
+      || x === '\u3000'
+}
+
+module.exports.isWhiteSpaceJSON = function isWhiteSpaceJSON(x) {
+  return x === '\u0020'
+      || x === '\u0009'
+      || x === '\u000A'
+      || x === '\u000D'
+}
+
+module.exports.isLineTerminator = function isLineTerminator(x) {
+  // ok, here is the part when JSON is wrong
+  // section 7.3, table 3
+  return x === '\u000A'
+      || x === '\u000D'
+      || x === '\u2028'
+      || x === '\u2029'
+}
+
+module.exports.isLineTerminatorJSON = function isLineTerminatorJSON(x) {
+  return x === '\u000A'
+      || x === '\u000D'
+}
+
+module.exports.isIdentifierStart = function isIdentifierStart(x) {
+  return x === '$'
+      || x === '_'
+      || (x >= 'A' && x <= 'Z')
+      || (x >= 'a' && x <= 'z')
+      || (x >= '\u0080' && Uni.NonAsciiIdentifierStart.test(x))
+}
+
+module.exports.isIdentifierPart = function isIdentifierPart(x) {
+  return x === '$'
+      || x === '_'
+      || (x >= 'A' && x <= 'Z')
+      || (x >= 'a' && x <= 'z')
+      || (x >= '0' && x <= '9') // <-- addition to Start
+      || (x >= '\u0080' && Uni.NonAsciiIdentifierPart.test(x))
+}
+
+module.exports.NonAsciiIdentifierStart = /[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0\u08A2-\u08AC\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097F\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C33\u0C35-\u0C39\u0C3D\u0C58\u0C59\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D60\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F0\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191C\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19C1-\u19C7\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA697\uA6A0-\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA793\uA7A0-\uA7AA\uA7F8-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA80-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uABC0-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]/
+
+// ECMAScript 5.1/Unicode v6.3.0 NonAsciiIdentifierPart:
+
+module.exports.NonAsciiIdentifierPart = 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uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]/
diff --git a/helloworld/node_modules/parseqs/LICENSE b/helloworld/node_modules/parseqs/LICENSE
new file mode 100755
index 0000000..1472010
--- /dev/null
+++ b/helloworld/node_modules/parseqs/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Gal Koren
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/parseqs/Makefile b/helloworld/node_modules/parseqs/Makefile
new file mode 100755
index 0000000..2fbcce9
--- /dev/null
+++ b/helloworld/node_modules/parseqs/Makefile
@@ -0,0 +1,3 @@
+
+test:
+	@./node_modules/.bin/mocha test.js
diff --git a/helloworld/node_modules/parseqs/README.md b/helloworld/node_modules/parseqs/README.md
new file mode 100755
index 0000000..8c3148a
--- /dev/null
+++ b/helloworld/node_modules/parseqs/README.md
@@ -0,0 +1 @@
+Provides methods for converting an object into string representation, and vice versa.
diff --git a/helloworld/node_modules/parseqs/index.js b/helloworld/node_modules/parseqs/index.js
new file mode 100755
index 0000000..f8b486f
--- /dev/null
+++ b/helloworld/node_modules/parseqs/index.js
@@ -0,0 +1,37 @@
+/**
+ * Compiles a querystring
+ * Returns string representation of the object
+ *
+ * @param {Object}
+ * @api private
+ */
+
+exports.encode = function (obj) {
+  var str = '';
+
+  for (var i in obj) {
+    if (obj.hasOwnProperty(i)) {
+      if (str.length) str += '&';
+      str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);
+    }
+  }
+
+  return str;
+};
+
+/**
+ * Parses a simple querystring into an object
+ *
+ * @param {String} qs
+ * @api private
+ */
+
+exports.decode = function(qs){
+  var qry = {};
+  var pairs = qs.split('&');
+  for (var i = 0, l = pairs.length; i < l; i++) {
+    var pair = pairs[i].split('=');
+    qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
+  }
+  return qry;
+};
diff --git a/helloworld/node_modules/parseqs/package.json b/helloworld/node_modules/parseqs/package.json
new file mode 100755
index 0000000..f9163e4
--- /dev/null
+++ b/helloworld/node_modules/parseqs/package.json
@@ -0,0 +1,53 @@
+{
+  "_from": "parseqs@0.0.5",
+  "_id": "parseqs@0.0.5",
+  "_inBundle": false,
+  "_integrity": "sha1-1SCKNzjkZ2bikbouoXNoSSGouJ0=",
+  "_location": "/parseqs",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "parseqs@0.0.5",
+    "name": "parseqs",
+    "escapedName": "parseqs",
+    "rawSpec": "0.0.5",
+    "saveSpec": null,
+    "fetchSpec": "0.0.5"
+  },
+  "_requiredBy": [
+    "/engine.io-client",
+    "/socket.io-client"
+  ],
+  "_resolved": "https://registry.npmjs.org/parseqs/-/parseqs-0.0.5.tgz",
+  "_shasum": "d5208a3738e46766e291ba2ea173684921a8b89d",
+  "_spec": "parseqs@0.0.5",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/socket.io-client",
+  "author": {
+    "name": "Gal Koren"
+  },
+  "bugs": {
+    "url": "https://github.com/get/querystring/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "better-assert": "~1.0.0"
+  },
+  "deprecated": false,
+  "description": "Provides methods for parsing a query string into an object, and vice versa.",
+  "devDependencies": {
+    "better-assert": "~1.0.0",
+    "mocha": "1.17.1"
+  },
+  "homepage": "https://github.com/get/querystring",
+  "license": "MIT",
+  "name": "parseqs",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/get/querystring.git"
+  },
+  "scripts": {
+    "test": "make test"
+  },
+  "version": "0.0.5"
+}
diff --git a/helloworld/node_modules/parseqs/test.js b/helloworld/node_modules/parseqs/test.js
new file mode 100755
index 0000000..362ae65
--- /dev/null
+++ b/helloworld/node_modules/parseqs/test.js
@@ -0,0 +1,27 @@
+var assert = require('better-assert');
+var expect = require('expect.js');
+var util = require('./index.js');
+
+describe('querystring test suite', function(){
+	it('should parse a querystring and return an object', function () {
+		
+		// Single assignment
+		var queryObj = util.decode("foo=bar");
+		expect(queryObj.foo).to.be("bar");
+		
+		// Multiple assignments
+		queryObj = util.decode("france=paris&germany=berlin");
+		expect(queryObj.france).to.be("paris");
+		expect(queryObj.germany).to.be("berlin");
+		
+		// Assignments containing non-alphanumeric characters
+		queryObj = util.decode("india=new%20delhi");
+		expect(queryObj.india).to.be("new delhi");
+	});
+	
+	it('should construct a query string from an object', function () {
+		expect(util.encode({ a: 'b' })).to.be('a=b');
+		expect(util.encode({ a: 'b', c: 'd' })).to.be('a=b&c=d');
+		expect(util.encode({ a: 'b', c: 'tobi rocks' })).to.be('a=b&c=tobi%20rocks');
+	});
+});
diff --git a/helloworld/node_modules/parseuri/History.md b/helloworld/node_modules/parseuri/History.md
new file mode 100755
index 0000000..c198d2c
--- /dev/null
+++ b/helloworld/node_modules/parseuri/History.md
@@ -0,0 +1,5 @@
+
+n.n.n / 2014-02-09
+==================
+
+ * parseuri first commit
diff --git a/helloworld/node_modules/parseuri/LICENSE b/helloworld/node_modules/parseuri/LICENSE
new file mode 100755
index 0000000..25556e8
--- /dev/null
+++ b/helloworld/node_modules/parseuri/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Gal Koren
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/parseuri/Makefile b/helloworld/node_modules/parseuri/Makefile
new file mode 100755
index 0000000..2fbcce9
--- /dev/null
+++ b/helloworld/node_modules/parseuri/Makefile
@@ -0,0 +1,3 @@
+
+test:
+	@./node_modules/.bin/mocha test.js
diff --git a/helloworld/node_modules/parseuri/README.md b/helloworld/node_modules/parseuri/README.md
new file mode 100755
index 0000000..f108180
--- /dev/null
+++ b/helloworld/node_modules/parseuri/README.md
@@ -0,0 +1,2 @@
+# parseuri
+Module for parsing URI's in engine.io-client
diff --git a/helloworld/node_modules/parseuri/index.js b/helloworld/node_modules/parseuri/index.js
new file mode 100755
index 0000000..88639d5
--- /dev/null
+++ b/helloworld/node_modules/parseuri/index.js
@@ -0,0 +1,39 @@
+/**
+ * Parses an URI
+ *
+ * @author Steven Levithan <stevenlevithan.com> (MIT license)
+ * @api private
+ */
+
+var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
+
+var parts = [
+    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'
+];
+
+module.exports = function parseuri(str) {
+    var src = str,
+        b = str.indexOf('['),
+        e = str.indexOf(']');
+
+    if (b != -1 && e != -1) {
+        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);
+    }
+
+    var m = re.exec(str || ''),
+        uri = {},
+        i = 14;
+
+    while (i--) {
+        uri[parts[i]] = m[i] || '';
+    }
+
+    if (b != -1 && e != -1) {
+        uri.source = src;
+        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');
+        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');
+        uri.ipv6uri = true;
+    }
+
+    return uri;
+};
diff --git a/helloworld/node_modules/parseuri/package.json b/helloworld/node_modules/parseuri/package.json
new file mode 100755
index 0000000..d2748c3
--- /dev/null
+++ b/helloworld/node_modules/parseuri/package.json
@@ -0,0 +1,51 @@
+{
+  "_from": "parseuri@0.0.5",
+  "_id": "parseuri@0.0.5",
+  "_inBundle": false,
+  "_integrity": "sha1-gCBKUNTbt3m/3G6+J3jZDkvOMgo=",
+  "_location": "/parseuri",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "parseuri@0.0.5",
+    "name": "parseuri",
+    "escapedName": "parseuri",
+    "rawSpec": "0.0.5",
+    "saveSpec": null,
+    "fetchSpec": "0.0.5"
+  },
+  "_requiredBy": [
+    "/engine.io-client",
+    "/socket.io-client"
+  ],
+  "_resolved": "https://registry.npmjs.org/parseuri/-/parseuri-0.0.5.tgz",
+  "_shasum": "80204a50d4dbb779bfdc6ebe2778d90e4bce320a",
+  "_spec": "parseuri@0.0.5",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/socket.io-client",
+  "author": "",
+  "bugs": {
+    "url": "https://github.com/get/parseuri/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "better-assert": "~1.0.0"
+  },
+  "deprecated": false,
+  "description": "Method that parses a URI and returns an array of its components",
+  "devDependencies": {
+    "better-assert": "1.0.0",
+    "mocha": "1.17.1"
+  },
+  "homepage": "https://github.com/get/parseuri",
+  "license": "MIT",
+  "name": "parseuri",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/get/parseuri.git"
+  },
+  "scripts": {
+    "test": "make test"
+  },
+  "version": "0.0.5"
+}
diff --git a/helloworld/node_modules/parseuri/test.js b/helloworld/node_modules/parseuri/test.js
new file mode 100755
index 0000000..01f5d8c
--- /dev/null
+++ b/helloworld/node_modules/parseuri/test.js
@@ -0,0 +1,51 @@
+var assert = require('better-assert');
+var expect = require('expect.js');
+var parseuri = require('./index.js');
+
+describe('my suite', function(){
+	it('should parse an uri', function () {
+    var http = parseuri('http://google.com')
+      , https = parseuri('https://www.google.com:80')
+      , query = parseuri('google.com:8080/foo/bar?foo=bar')
+      , localhost = parseuri('localhost:8080')
+      , ipv6 = parseuri('2001:0db8:85a3:0042:1000:8a2e:0370:7334')
+      , ipv6short = parseuri('2001:db8:85a3:42:1000:8a2e:370:7334')
+      , ipv6port = parseuri('2001:db8:85a3:42:1000:8a2e:370:7334:80')
+      , ipv6abbrev = parseuri('2001::7334:a:80')
+      , ipv6http = parseuri('http://[2001::7334:a]:80')
+      , ipv6query = parseuri('http://[2001::7334:a]:80/foo/bar?foo=bar')
+
+    expect(http.protocol).to.be('http');
+    expect(http.port).to.be('');
+    expect(http.host).to.be('google.com');
+    expect(https.protocol).to.be('https');
+    expect(https.port).to.be('80');
+    expect(https.host).to.be('www.google.com');
+    expect(query.port).to.be('8080');
+    expect(query.query).to.be('foo=bar');
+    expect(query.path).to.be('/foo/bar');
+    expect(query.relative).to.be('/foo/bar?foo=bar');
+    expect(localhost.protocol).to.be('');
+    expect(localhost.host).to.be('localhost');
+    expect(localhost.port).to.be('8080');
+    expect(ipv6.protocol).to.be('');
+    expect(ipv6.host).to.be('2001:0db8:85a3:0042:1000:8a2e:0370:7334');
+    expect(ipv6.port).to.be('');
+    expect(ipv6short.protocol).to.be('');
+    expect(ipv6short.host).to.be('2001:db8:85a3:42:1000:8a2e:370:7334');
+    expect(ipv6short.port).to.be('');
+    expect(ipv6port.protocol).to.be('');
+    expect(ipv6port.host).to.be('2001:db8:85a3:42:1000:8a2e:370:7334');
+    expect(ipv6port.port).to.be('80');
+    expect(ipv6abbrev.protocol).to.be('');
+    expect(ipv6abbrev.host).to.be('2001::7334:a:80');
+    expect(ipv6abbrev.port).to.be('');
+    expect(ipv6http.protocol).to.be('http');
+    expect(ipv6http.port).to.be('80');
+    expect(ipv6http.host).to.be('2001::7334:a');
+    expect(ipv6query.protocol).to.be('http');
+    expect(ipv6query.port).to.be('80');
+    expect(ipv6query.host).to.be('2001::7334:a');
+    expect(ipv6query.relative).to.be('/foo/bar?foo=bar');
+  });
+});
diff --git a/helloworld/node_modules/path-exists/index.js b/helloworld/node_modules/path-exists/index.js
new file mode 100755
index 0000000..a7e680a
--- /dev/null
+++ b/helloworld/node_modules/path-exists/index.js
@@ -0,0 +1,24 @@
+'use strict';
+var fs = require('fs');
+var Promise = require('pinkie-promise');
+
+module.exports = function (fp) {
+	var fn = typeof fs.access === 'function' ? fs.access : fs.stat;
+
+	return new Promise(function (resolve) {
+		fn(fp, function (err) {
+			resolve(!err);
+		});
+	});
+};
+
+module.exports.sync = function (fp) {
+	var fn = typeof fs.accessSync === 'function' ? fs.accessSync : fs.statSync;
+
+	try {
+		fn(fp);
+		return true;
+	} catch (err) {
+		return false;
+	}
+};
diff --git a/helloworld/node_modules/path-exists/license b/helloworld/node_modules/path-exists/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/path-exists/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/path-exists/readme.md b/helloworld/node_modules/path-exists/readme.md
new file mode 100755
index 0000000..8fbcd68
--- /dev/null
+++ b/helloworld/node_modules/path-exists/readme.md
@@ -0,0 +1,45 @@
+# path-exists [![Build Status](https://travis-ci.org/sindresorhus/path-exists.svg?branch=master)](https://travis-ci.org/sindresorhus/path-exists)
+
+> Check if a path exists
+
+Because [`fs.exists()`](https://nodejs.org/api/fs.html#fs_fs_exists_path_callback) is being [deprecated](https://github.com/iojs/io.js/issues/103), but there's still a genuine use-case of being able to check if a path exists for other purposes than doing IO with it.
+
+Never use this before handling a file though:
+
+> In particular, checking if a file exists before opening it is an anti-pattern that leaves you vulnerable to race conditions: another process may remove the file between the calls to `fs.exists()` and `fs.open()`. Just open the file and handle the error when it's not there.
+
+
+## Install
+
+```
+$ npm install --save path-exists
+```
+
+
+## Usage
+
+```js
+// foo.js
+var pathExists = require('path-exists');
+
+pathExists('foo.js').then(function (exists) {
+	console.log(exists);
+	//=> true
+});
+```
+
+
+## API
+
+### pathExists(path)
+
+Returns a promise that resolves to a boolean of whether the path exists.
+
+### pathExists.sync(path)
+
+Returns a boolean of whether the path exists.
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/path-parse/LICENSE b/helloworld/node_modules/path-parse/LICENSE
new file mode 100755
index 0000000..810f3db
--- /dev/null
+++ b/helloworld/node_modules/path-parse/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Javier Blanco
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/helloworld/node_modules/path-parse/README.md b/helloworld/node_modules/path-parse/README.md
new file mode 100755
index 0000000..05097f8
--- /dev/null
+++ b/helloworld/node_modules/path-parse/README.md
@@ -0,0 +1,42 @@
+# path-parse [![Build Status](https://travis-ci.org/jbgutierrez/path-parse.svg?branch=master)](https://travis-ci.org/jbgutierrez/path-parse)
+
+> Node.js [`path.parse(pathString)`](https://nodejs.org/api/path.html#path_path_parse_pathstring) [ponyfill](https://ponyfill.com).
+
+## Install
+
+```
+$ npm install --save path-parse
+```
+
+## Usage
+
+```js
+var pathParse = require('path-parse');
+
+pathParse('/home/user/dir/file.txt');
+//=> {
+//       root : "/",
+//       dir : "/home/user/dir",
+//       base : "file.txt",
+//       ext : ".txt",
+//       name : "file"
+//   }
+```
+
+## API
+
+See [`path.parse(pathString)`](https://nodejs.org/api/path.html#path_path_parse_pathstring) docs.
+
+### pathParse(path)
+
+### pathParse.posix(path)
+
+The Posix specific version.
+
+### pathParse.win32(path)
+
+The Windows specific version.
+
+## License
+
+MIT © [Javier Blanco](http://jbgutierrez.info)
diff --git a/helloworld/node_modules/path-parse/index.js b/helloworld/node_modules/path-parse/index.js
new file mode 100755
index 0000000..3b7601f
--- /dev/null
+++ b/helloworld/node_modules/path-parse/index.js
@@ -0,0 +1,93 @@
+'use strict';
+
+var isWindows = process.platform === 'win32';
+
+// Regex to split a windows path into three parts: [*, device, slash,
+// tail] windows-only
+var splitDeviceRe =
+    /^([a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/]+[^\\\/]+)?([\\\/])?([\s\S]*?)$/;
+
+// Regex to split the tail part of the above into [*, dir, basename, ext]
+var splitTailRe =
+    /^([\s\S]*?)((?:\.{1,2}|[^\\\/]+?|)(\.[^.\/\\]*|))(?:[\\\/]*)$/;
+
+var win32 = {};
+
+// Function to split a filename into [root, dir, basename, ext]
+function win32SplitPath(filename) {
+  // Separate device+slash from tail
+  var result = splitDeviceRe.exec(filename),
+      device = (result[1] || '') + (result[2] || ''),
+      tail = result[3] || '';
+  // Split the tail into dir, basename and extension
+  var result2 = splitTailRe.exec(tail),
+      dir = result2[1],
+      basename = result2[2],
+      ext = result2[3];
+  return [device, dir, basename, ext];
+}
+
+win32.parse = function(pathString) {
+  if (typeof pathString !== 'string') {
+    throw new TypeError(
+        "Parameter 'pathString' must be a string, not " + typeof pathString
+    );
+  }
+  var allParts = win32SplitPath(pathString);
+  if (!allParts || allParts.length !== 4) {
+    throw new TypeError("Invalid path '" + pathString + "'");
+  }
+  return {
+    root: allParts[0],
+    dir: allParts[0] + allParts[1].slice(0, -1),
+    base: allParts[2],
+    ext: allParts[3],
+    name: allParts[2].slice(0, allParts[2].length - allParts[3].length)
+  };
+};
+
+
+
+// Split a filename into [root, dir, basename, ext], unix version
+// 'root' is just a slash, or nothing.
+var splitPathRe =
+    /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
+var posix = {};
+
+
+function posixSplitPath(filename) {
+  return splitPathRe.exec(filename).slice(1);
+}
+
+
+posix.parse = function(pathString) {
+  if (typeof pathString !== 'string') {
+    throw new TypeError(
+        "Parameter 'pathString' must be a string, not " + typeof pathString
+    );
+  }
+  var allParts = posixSplitPath(pathString);
+  if (!allParts || allParts.length !== 4) {
+    throw new TypeError("Invalid path '" + pathString + "'");
+  }
+  allParts[1] = allParts[1] || '';
+  allParts[2] = allParts[2] || '';
+  allParts[3] = allParts[3] || '';
+
+  return {
+    root: allParts[0],
+    dir: allParts[0] + allParts[1].slice(0, -1),
+    base: allParts[2],
+    ext: allParts[3],
+    name: allParts[2].slice(0, allParts[2].length - allParts[3].length)
+  };
+};
+
+
+if (isWindows)
+  module.exports = win32.parse;
+else /* posix */
+  module.exports = posix.parse;
+
+module.exports.posix = posix.parse;
+module.exports.win32 = win32.parse;
diff --git a/helloworld/node_modules/path-parse/package.json b/helloworld/node_modules/path-parse/package.json
new file mode 100755
index 0000000..3db6158
--- /dev/null
+++ b/helloworld/node_modules/path-parse/package.json
@@ -0,0 +1,61 @@
+{
+  "_from": "path-parse@^1.0.6",
+  "_id": "path-parse@1.0.6",
+  "_inBundle": false,
+  "_integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==",
+  "_location": "/path-parse",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "path-parse@^1.0.6",
+    "name": "path-parse",
+    "escapedName": "path-parse",
+    "rawSpec": "^1.0.6",
+    "saveSpec": null,
+    "fetchSpec": "^1.0.6"
+  },
+  "_requiredBy": [
+    "/resolve"
+  ],
+  "_resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.6.tgz",
+  "_shasum": "d62dbb5679405d72c4737ec58600e9ddcf06d24c",
+  "_spec": "path-parse@^1.0.6",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/resolve",
+  "author": {
+    "name": "Javier Blanco",
+    "email": "http://jbgutierrez.info"
+  },
+  "bugs": {
+    "url": "https://github.com/jbgutierrez/path-parse/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "Node.js path.parse() ponyfill",
+  "homepage": "https://github.com/jbgutierrez/path-parse#readme",
+  "keywords": [
+    "path",
+    "paths",
+    "file",
+    "dir",
+    "parse",
+    "built-in",
+    "util",
+    "utils",
+    "core",
+    "ponyfill",
+    "polyfill",
+    "shim"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "name": "path-parse",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/jbgutierrez/path-parse.git"
+  },
+  "scripts": {
+    "test": "node test.js"
+  },
+  "version": "1.0.6"
+}
diff --git a/helloworld/node_modules/path-parse/test.js b/helloworld/node_modules/path-parse/test.js
new file mode 100755
index 0000000..0b30c12
--- /dev/null
+++ b/helloworld/node_modules/path-parse/test.js
@@ -0,0 +1,77 @@
+var assert = require('assert');
+var pathParse = require('./index');
+
+var winParseTests = [
+  [{ root: 'C:\\', dir: 'C:\\path\\dir', base: 'index.html', ext: '.html', name: 'index' }, 'C:\\path\\dir\\index.html'],
+  [{ root: 'C:\\', dir: 'C:\\another_path\\DIR\\1\\2\\33', base: 'index', ext: '', name: 'index' }, 'C:\\another_path\\DIR\\1\\2\\33\\index'],
+  [{ root: '', dir: 'another_path\\DIR with spaces\\1\\2\\33', base: 'index', ext: '', name: 'index' }, 'another_path\\DIR with spaces\\1\\2\\33\\index'],
+  [{ root: '\\', dir: '\\foo', base: 'C:', ext: '', name: 'C:' }, '\\foo\\C:'],
+  [{ root: '', dir: '', base: 'file', ext: '', name: 'file' }, 'file'],
+  [{ root: '', dir: '.', base: 'file', ext: '', name: 'file' }, '.\\file'],
+
+  // unc
+  [{ root: '\\\\server\\share\\', dir: '\\\\server\\share\\', base: 'file_path', ext: '', name: 'file_path' }, '\\\\server\\share\\file_path'],
+  [{ root: '\\\\server two\\shared folder\\', dir: '\\\\server two\\shared folder\\', base: 'file path.zip', ext: '.zip', name: 'file path' }, '\\\\server two\\shared folder\\file path.zip'],
+  [{ root: '\\\\teela\\admin$\\', dir: '\\\\teela\\admin$\\', base: 'system32', ext: '', name: 'system32' }, '\\\\teela\\admin$\\system32'],
+  [{ root: '\\\\?\\UNC\\', dir: '\\\\?\\UNC\\server', base: 'share', ext: '', name: 'share' }, '\\\\?\\UNC\\server\\share']
+];
+
+var winSpecialCaseFormatTests = [
+  [{dir: 'some\\dir'}, 'some\\dir\\'],
+  [{base: 'index.html'}, 'index.html'],
+  [{}, '']
+];
+
+var unixParseTests = [
+  [{ root: '/', dir: '/home/user/dir', base: 'file.txt', ext: '.txt', name: 'file' }, '/home/user/dir/file.txt'],
+  [{ root: '/', dir: '/home/user/a dir', base: 'another File.zip', ext: '.zip', name: 'another File' }, '/home/user/a dir/another File.zip'],
+  [{ root: '/', dir: '/home/user/a dir/', base: 'another&File.', ext: '.', name: 'another&File' }, '/home/user/a dir//another&File.'],
+  [{ root: '/', dir: '/home/user/a$$$dir/', base: 'another File.zip', ext: '.zip', name: 'another File' }, '/home/user/a$$$dir//another File.zip'],
+  [{ root: '', dir: 'user/dir', base: 'another File.zip', ext: '.zip', name: 'another File' }, 'user/dir/another File.zip'],
+  [{ root: '', dir: '', base: 'file', ext: '', name: 'file' }, 'file'],
+  [{ root: '', dir: '', base: '.\\file', ext: '', name: '.\\file' }, '.\\file'],
+  [{ root: '', dir: '.', base: 'file', ext: '', name: 'file' }, './file'],
+  [{ root: '', dir: '', base: 'C:\\foo', ext: '', name: 'C:\\foo' }, 'C:\\foo']
+];
+
+var unixSpecialCaseFormatTests = [
+  [{dir: 'some/dir'}, 'some/dir/'],
+  [{base: 'index.html'}, 'index.html'],
+  [{}, '']
+];
+
+var errors = [
+  {input: null, message: /Parameter 'pathString' must be a string, not/},
+  {input: {}, message: /Parameter 'pathString' must be a string, not object/},
+  {input: true, message: /Parameter 'pathString' must be a string, not boolean/},
+  {input: 1, message: /Parameter 'pathString' must be a string, not number/},
+  {input: undefined, message: /Parameter 'pathString' must be a string, not undefined/},
+];
+
+checkParseFormat(pathParse.win32, winParseTests);
+checkParseFormat(pathParse.posix, unixParseTests);
+checkErrors(pathParse.win32);
+checkErrors(pathParse.posix);
+
+function checkErrors(parse) {
+  errors.forEach(function(errorCase) {
+    try {
+      parse(errorCase.input);
+    } catch(err) {
+      assert.ok(err instanceof TypeError);
+      assert.ok(
+        errorCase.message.test(err.message),
+        'expected ' + errorCase.message + ' to match ' + err.message
+      );
+      return;
+    }
+
+    assert.fail('should have thrown');
+  });
+}
+
+function checkParseFormat(parse, testCases) {
+  testCases.forEach(function(testCase) {
+    assert.deepEqual(parse(testCase[1]), testCase[0]);
+  });
+}
diff --git a/helloworld/node_modules/path-type/index.js b/helloworld/node_modules/path-type/index.js
new file mode 100755
index 0000000..207a1d1
--- /dev/null
+++ b/helloworld/node_modules/path-type/index.js
@@ -0,0 +1,29 @@
+'use strict';
+var fs = require('graceful-fs');
+var Promise = require('pinkie-promise');
+var pify = require('pify');
+
+function type(fn, fn2, fp) {
+	if (typeof fp !== 'string') {
+		return Promise.reject(new TypeError('Expected a string'));
+	}
+
+	return pify(fs[fn], Promise)(fp).then(function (stats) {
+		return stats[fn2]();
+	});
+}
+
+function typeSync(fn, fn2, fp) {
+	if (typeof fp !== 'string') {
+		throw new TypeError('Expected a string');
+	}
+
+	return fs[fn](fp)[fn2]();
+}
+
+exports.file = type.bind(null, 'stat', 'isFile');
+exports.dir = type.bind(null, 'stat', 'isDirectory');
+exports.symlink = type.bind(null, 'lstat', 'isSymbolicLink');
+exports.fileSync = typeSync.bind(null, 'statSync', 'isFile');
+exports.dirSync = typeSync.bind(null, 'statSync', 'isDirectory');
+exports.symlinkSync = typeSync.bind(null, 'lstatSync', 'isSymbolicLink');
diff --git a/helloworld/node_modules/path-type/license b/helloworld/node_modules/path-type/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/path-type/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/path-type/readme.md b/helloworld/node_modules/path-type/readme.md
new file mode 100755
index 0000000..eac12d6
--- /dev/null
+++ b/helloworld/node_modules/path-type/readme.md
@@ -0,0 +1,42 @@
+# path-type [![Build Status](https://travis-ci.org/sindresorhus/path-type.svg?branch=master)](https://travis-ci.org/sindresorhus/path-type)
+
+> Check if a path is a file, directory, or symlink
+
+
+## Install
+
+```
+$ npm install --save path-type
+```
+
+
+## Usage
+
+```js
+var pathType = require('path-type');
+
+pathType.file('package.json').then(function (isFile) {
+	console.log(isFile);
+	//=> true
+})
+```
+
+
+## API
+
+### .file(path)
+### .dir(path)
+### .symlink(path)
+
+Returns a promise that resolves to a boolean of whether the path is the checked type.
+
+### .fileSync(path)
+### .dirSync(path)
+### .symlinkSync(path)
+
+Returns a boolean of whether the path is the checked type.
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/pify/index.js b/helloworld/node_modules/pify/index.js
new file mode 100755
index 0000000..7c720eb
--- /dev/null
+++ b/helloworld/node_modules/pify/index.js
@@ -0,0 +1,68 @@
+'use strict';
+
+var processFn = function (fn, P, opts) {
+	return function () {
+		var that = this;
+		var args = new Array(arguments.length);
+
+		for (var i = 0; i < arguments.length; i++) {
+			args[i] = arguments[i];
+		}
+
+		return new P(function (resolve, reject) {
+			args.push(function (err, result) {
+				if (err) {
+					reject(err);
+				} else if (opts.multiArgs) {
+					var results = new Array(arguments.length - 1);
+
+					for (var i = 1; i < arguments.length; i++) {
+						results[i - 1] = arguments[i];
+					}
+
+					resolve(results);
+				} else {
+					resolve(result);
+				}
+			});
+
+			fn.apply(that, args);
+		});
+	};
+};
+
+var pify = module.exports = function (obj, P, opts) {
+	if (typeof P !== 'function') {
+		opts = P;
+		P = Promise;
+	}
+
+	opts = opts || {};
+	opts.exclude = opts.exclude || [/.+Sync$/];
+
+	var filter = function (key) {
+		var match = function (pattern) {
+			return typeof pattern === 'string' ? key === pattern : pattern.test(key);
+		};
+
+		return opts.include ? opts.include.some(match) : !opts.exclude.some(match);
+	};
+
+	var ret = typeof obj === 'function' ? function () {
+		if (opts.excludeMain) {
+			return obj.apply(this, arguments);
+		}
+
+		return processFn(obj, P, opts).apply(this, arguments);
+	} : {};
+
+	return Object.keys(obj).reduce(function (ret, key) {
+		var x = obj[key];
+
+		ret[key] = typeof x === 'function' && filter(key) ? processFn(x, P, opts) : x;
+
+		return ret;
+	}, ret);
+};
+
+pify.all = pify;
diff --git a/helloworld/node_modules/pify/license b/helloworld/node_modules/pify/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/pify/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/pify/readme.md b/helloworld/node_modules/pify/readme.md
new file mode 100755
index 0000000..c79ca8b
--- /dev/null
+++ b/helloworld/node_modules/pify/readme.md
@@ -0,0 +1,119 @@
+# pify [![Build Status](https://travis-ci.org/sindresorhus/pify.svg?branch=master)](https://travis-ci.org/sindresorhus/pify)
+
+> Promisify a callback-style function
+
+
+## Install
+
+```
+$ npm install --save pify
+```
+
+
+## Usage
+
+```js
+const fs = require('fs');
+const pify = require('pify');
+
+// promisify a single function
+
+pify(fs.readFile)('package.json', 'utf8').then(data => {
+	console.log(JSON.parse(data).name);
+	//=> 'pify'
+});
+
+// or promisify all methods in a module
+
+pify(fs).readFile('package.json', 'utf8').then(data => {
+	console.log(JSON.parse(data).name);
+	//=> 'pify'
+});
+```
+
+
+## API
+
+### pify(input, [promiseModule], [options])
+
+Returns a promise wrapped version of the supplied function or module.
+
+#### input
+
+Type: `function`, `object`
+
+Callback-style function or module whose methods you want to promisify.
+
+#### promiseModule
+
+Type: `function`
+
+Custom promise module to use instead of the native one.
+
+Check out [`pinkie-promise`](https://github.com/floatdrop/pinkie-promise) if you need a tiny promise polyfill.
+
+#### options
+
+##### multiArgs
+
+Type: `boolean`  
+Default: `false`
+
+By default, the promisified function will only return the second argument from the callback, which works fine for most APIs. This option can be useful for modules like `request` that return multiple arguments. Turning this on will make it return an array of all arguments from the callback, excluding the error argument, instead of just the second argument.
+
+```js
+const request = require('request');
+const pify = require('pify');
+
+pify(request, {multiArgs: true})('https://sindresorhus.com').then(result => {
+	const [httpResponse, body] = result;
+});
+```
+
+##### include
+
+Type: `array` of (`string`|`regex`)
+
+Methods in a module to promisify. Remaining methods will be left untouched.
+
+##### exclude
+
+Type: `array` of (`string`|`regex`)  
+Default: `[/.+Sync$/]`
+
+Methods in a module **not** to promisify. Methods with names ending with `'Sync'` are excluded by default.
+
+##### excludeMain
+
+Type: `boolean`  
+Default: `false`
+
+By default, if given module is a function itself, this function will be promisified. Turn this option on if you want to promisify only methods of the module.
+
+```js
+const pify = require('pify');
+
+function fn() {
+	return true;
+}
+
+fn.method = (data, callback) => {
+	setImmediate(() => {
+		callback(data, null);
+	});
+};
+
+// promisify methods but not fn()
+const promiseFn = pify(fn, {excludeMain: true});
+
+if (promiseFn()) {
+	promiseFn.method('hi').then(data => {
+		console.log(data);
+	});
+}
+```
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/pinkie-promise/index.js b/helloworld/node_modules/pinkie-promise/index.js
new file mode 100755
index 0000000..777377a
--- /dev/null
+++ b/helloworld/node_modules/pinkie-promise/index.js
@@ -0,0 +1,3 @@
+'use strict';
+
+module.exports = typeof Promise === 'function' ? Promise : require('pinkie');
diff --git a/helloworld/node_modules/pinkie-promise/license b/helloworld/node_modules/pinkie-promise/license
new file mode 100755
index 0000000..1aeb74f
--- /dev/null
+++ b/helloworld/node_modules/pinkie-promise/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Vsevolod Strukchinsky <floatdrop@gmail.com> (github.com/floatdrop)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/pinkie-promise/readme.md b/helloworld/node_modules/pinkie-promise/readme.md
new file mode 100755
index 0000000..78477f4
--- /dev/null
+++ b/helloworld/node_modules/pinkie-promise/readme.md
@@ -0,0 +1,28 @@
+# pinkie-promise [![Build Status](https://travis-ci.org/floatdrop/pinkie-promise.svg?branch=master)](https://travis-ci.org/floatdrop/pinkie-promise)
+
+> [ES2015 Promise](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-promise-objects) ponyfill
+
+Module exports global Promise object (if available) or [`pinkie`](http://github.com/floatdrop/pinkie) Promise polyfill.
+
+## Install
+
+```
+$ npm install --save pinkie-promise
+```
+
+## Usage
+
+```js
+var Promise = require('pinkie-promise');
+
+new Promise(function (resolve) { resolve('unicorns'); });
+//=> Promise { 'unicorns' }
+```
+
+## Related
+
+- [pify](https://github.com/sindresorhus/pify) - Promisify a callback-style function
+
+## License
+
+MIT © [Vsevolod Strukchinsky](http://github.com/floatdrop)
diff --git a/helloworld/node_modules/pinkie/index.js b/helloworld/node_modules/pinkie/index.js
new file mode 100755
index 0000000..14ce1bf
--- /dev/null
+++ b/helloworld/node_modules/pinkie/index.js
@@ -0,0 +1,292 @@
+'use strict';
+
+var PENDING = 'pending';
+var SETTLED = 'settled';
+var FULFILLED = 'fulfilled';
+var REJECTED = 'rejected';
+var NOOP = function () {};
+var isNode = typeof global !== 'undefined' && typeof global.process !== 'undefined' && typeof global.process.emit === 'function';
+
+var asyncSetTimer = typeof setImmediate === 'undefined' ? setTimeout : setImmediate;
+var asyncQueue = [];
+var asyncTimer;
+
+function asyncFlush() {
+	// run promise callbacks
+	for (var i = 0; i < asyncQueue.length; i++) {
+		asyncQueue[i][0](asyncQueue[i][1]);
+	}
+
+	// reset async asyncQueue
+	asyncQueue = [];
+	asyncTimer = false;
+}
+
+function asyncCall(callback, arg) {
+	asyncQueue.push([callback, arg]);
+
+	if (!asyncTimer) {
+		asyncTimer = true;
+		asyncSetTimer(asyncFlush, 0);
+	}
+}
+
+function invokeResolver(resolver, promise) {
+	function resolvePromise(value) {
+		resolve(promise, value);
+	}
+
+	function rejectPromise(reason) {
+		reject(promise, reason);
+	}
+
+	try {
+		resolver(resolvePromise, rejectPromise);
+	} catch (e) {
+		rejectPromise(e);
+	}
+}
+
+function invokeCallback(subscriber) {
+	var owner = subscriber.owner;
+	var settled = owner._state;
+	var value = owner._data;
+	var callback = subscriber[settled];
+	var promise = subscriber.then;
+
+	if (typeof callback === 'function') {
+		settled = FULFILLED;
+		try {
+			value = callback(value);
+		} catch (e) {
+			reject(promise, e);
+		}
+	}
+
+	if (!handleThenable(promise, value)) {
+		if (settled === FULFILLED) {
+			resolve(promise, value);
+		}
+
+		if (settled === REJECTED) {
+			reject(promise, value);
+		}
+	}
+}
+
+function handleThenable(promise, value) {
+	var resolved;
+
+	try {
+		if (promise === value) {
+			throw new TypeError('A promises callback cannot return that same promise.');
+		}
+
+		if (value && (typeof value === 'function' || typeof value === 'object')) {
+			// then should be retrieved only once
+			var then = value.then;
+
+			if (typeof then === 'function') {
+				then.call(value, function (val) {
+					if (!resolved) {
+						resolved = true;
+
+						if (value === val) {
+							fulfill(promise, val);
+						} else {
+							resolve(promise, val);
+						}
+					}
+				}, function (reason) {
+					if (!resolved) {
+						resolved = true;
+
+						reject(promise, reason);
+					}
+				});
+
+				return true;
+			}
+		}
+	} catch (e) {
+		if (!resolved) {
+			reject(promise, e);
+		}
+
+		return true;
+	}
+
+	return false;
+}
+
+function resolve(promise, value) {
+	if (promise === value || !handleThenable(promise, value)) {
+		fulfill(promise, value);
+	}
+}
+
+function fulfill(promise, value) {
+	if (promise._state === PENDING) {
+		promise._state = SETTLED;
+		promise._data = value;
+
+		asyncCall(publishFulfillment, promise);
+	}
+}
+
+function reject(promise, reason) {
+	if (promise._state === PENDING) {
+		promise._state = SETTLED;
+		promise._data = reason;
+
+		asyncCall(publishRejection, promise);
+	}
+}
+
+function publish(promise) {
+	promise._then = promise._then.forEach(invokeCallback);
+}
+
+function publishFulfillment(promise) {
+	promise._state = FULFILLED;
+	publish(promise);
+}
+
+function publishRejection(promise) {
+	promise._state = REJECTED;
+	publish(promise);
+	if (!promise._handled && isNode) {
+		global.process.emit('unhandledRejection', promise._data, promise);
+	}
+}
+
+function notifyRejectionHandled(promise) {
+	global.process.emit('rejectionHandled', promise);
+}
+
+/**
+ * @class
+ */
+function Promise(resolver) {
+	if (typeof resolver !== 'function') {
+		throw new TypeError('Promise resolver ' + resolver + ' is not a function');
+	}
+
+	if (this instanceof Promise === false) {
+		throw new TypeError('Failed to construct \'Promise\': Please use the \'new\' operator, this object constructor cannot be called as a function.');
+	}
+
+	this._then = [];
+
+	invokeResolver(resolver, this);
+}
+
+Promise.prototype = {
+	constructor: Promise,
+
+	_state: PENDING,
+	_then: null,
+	_data: undefined,
+	_handled: false,
+
+	then: function (onFulfillment, onRejection) {
+		var subscriber = {
+			owner: this,
+			then: new this.constructor(NOOP),
+			fulfilled: onFulfillment,
+			rejected: onRejection
+		};
+
+		if ((onRejection || onFulfillment) && !this._handled) {
+			this._handled = true;
+			if (this._state === REJECTED && isNode) {
+				asyncCall(notifyRejectionHandled, this);
+			}
+		}
+
+		if (this._state === FULFILLED || this._state === REJECTED) {
+			// already resolved, call callback async
+			asyncCall(invokeCallback, subscriber);
+		} else {
+			// subscribe
+			this._then.push(subscriber);
+		}
+
+		return subscriber.then;
+	},
+
+	catch: function (onRejection) {
+		return this.then(null, onRejection);
+	}
+};
+
+Promise.all = function (promises) {
+	if (!Array.isArray(promises)) {
+		throw new TypeError('You must pass an array to Promise.all().');
+	}
+
+	return new Promise(function (resolve, reject) {
+		var results = [];
+		var remaining = 0;
+
+		function resolver(index) {
+			remaining++;
+			return function (value) {
+				results[index] = value;
+				if (!--remaining) {
+					resolve(results);
+				}
+			};
+		}
+
+		for (var i = 0, promise; i < promises.length; i++) {
+			promise = promises[i];
+
+			if (promise && typeof promise.then === 'function') {
+				promise.then(resolver(i), reject);
+			} else {
+				results[i] = promise;
+			}
+		}
+
+		if (!remaining) {
+			resolve(results);
+		}
+	});
+};
+
+Promise.race = function (promises) {
+	if (!Array.isArray(promises)) {
+		throw new TypeError('You must pass an array to Promise.race().');
+	}
+
+	return new Promise(function (resolve, reject) {
+		for (var i = 0, promise; i < promises.length; i++) {
+			promise = promises[i];
+
+			if (promise && typeof promise.then === 'function') {
+				promise.then(resolve, reject);
+			} else {
+				resolve(promise);
+			}
+		}
+	});
+};
+
+Promise.resolve = function (value) {
+	if (value && typeof value === 'object' && value.constructor === Promise) {
+		return value;
+	}
+
+	return new Promise(function (resolve) {
+		resolve(value);
+	});
+};
+
+Promise.reject = function (reason) {
+	return new Promise(function (resolve, reject) {
+		reject(reason);
+	});
+};
+
+module.exports = Promise;
diff --git a/helloworld/node_modules/pinkie/license b/helloworld/node_modules/pinkie/license
new file mode 100755
index 0000000..1aeb74f
--- /dev/null
+++ b/helloworld/node_modules/pinkie/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Vsevolod Strukchinsky <floatdrop@gmail.com> (github.com/floatdrop)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/pinkie/readme.md b/helloworld/node_modules/pinkie/readme.md
new file mode 100755
index 0000000..1565f95
--- /dev/null
+++ b/helloworld/node_modules/pinkie/readme.md
@@ -0,0 +1,83 @@
+<h1 align="center">
+	<br>
+	<img width="256" src="media/logo.png" alt="pinkie">
+	<br>
+	<br>
+</h1>
+
+> Itty bitty little widdle twinkie pinkie [ES2015 Promise](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-promise-objects) implementation
+
+[![Build Status](https://travis-ci.org/floatdrop/pinkie.svg?branch=master)](https://travis-ci.org/floatdrop/pinkie)  [![Coverage Status](https://coveralls.io/repos/floatdrop/pinkie/badge.svg?branch=master&service=github)](https://coveralls.io/github/floatdrop/pinkie?branch=master)
+
+There are [tons of Promise implementations](https://github.com/promises-aplus/promises-spec/blob/master/implementations.md#standalone) out there, but all of them focus on browser compatibility and are often bloated with functionality.
+
+This module is an exact Promise specification polyfill (like [native-promise-only](https://github.com/getify/native-promise-only)), but in Node.js land (it should be browserify-able though).
+
+
+## Install
+
+```
+$ npm install --save pinkie
+```
+
+
+## Usage
+
+```js
+var fs = require('fs');
+var Promise = require('pinkie');
+
+new Promise(function (resolve, reject) {
+	fs.readFile('foo.json', 'utf8', function (err, data) {
+		if (err) {
+			reject(err);
+			return;
+		}
+
+		resolve(data);
+	});
+});
+//=> Promise
+```
+
+
+### API
+
+`pinkie` exports bare [ES2015 Promise](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-promise-objects) implementation and polyfills [Node.js rejection events](https://nodejs.org/api/process.html#process_event_unhandledrejection). In case you forgot:
+
+#### new Promise(executor)
+
+Returns new instance of `Promise`.
+
+##### executor
+
+*Required*  
+Type: `function`
+
+Function with two arguments `resolve` and `reject`. The first argument fulfills the promise, the second argument rejects it.
+
+#### pinkie.all(promises)
+
+Returns a promise that resolves when all of the promises in the `promises` Array argument have resolved.
+
+#### pinkie.race(promises)
+
+Returns a promise that resolves or rejects as soon as one of the promises in the `promises` Array resolves or rejects, with the value or reason from that promise.
+
+#### pinkie.reject(reason)
+
+Returns a Promise object that is rejected with the given `reason`.
+
+#### pinkie.resolve(value)
+
+Returns a Promise object that is resolved with the given `value`. If the `value` is a thenable (i.e. has a then method), the returned promise will "follow" that thenable, adopting its eventual state; otherwise the returned promise will be fulfilled with the `value`.
+
+
+## Related
+
+- [pinkie-promise](https://github.com/floatdrop/pinkie-promise) - Returns the native Promise or this module
+
+
+## License
+
+MIT © [Vsevolod Strukchinsky](http://github.com/floatdrop)
diff --git a/helloworld/node_modules/prepend-http/index.js b/helloworld/node_modules/prepend-http/index.js
new file mode 100755
index 0000000..82b3a6b
--- /dev/null
+++ b/helloworld/node_modules/prepend-http/index.js
@@ -0,0 +1,15 @@
+'use strict';
+module.exports = (url, opts) => {
+	if (typeof url !== 'string') {
+		throw new TypeError(`Expected \`url\` to be of type \`string\`, got \`${typeof url}\``);
+	}
+
+	url = url.trim();
+	opts = Object.assign({https: false}, opts);
+
+	if (/^\.*\/|^(?!localhost)\w+:/.test(url)) {
+		return url;
+	}
+
+	return url.replace(/^(?!(?:\w+:)?\/\/)/, opts.https ? 'https://' : 'http://');
+};
diff --git a/helloworld/node_modules/prepend-http/license b/helloworld/node_modules/prepend-http/license
new file mode 100755
index 0000000..e7af2f7
--- /dev/null
+++ b/helloworld/node_modules/prepend-http/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/prepend-http/readme.md b/helloworld/node_modules/prepend-http/readme.md
new file mode 100755
index 0000000..55d640d
--- /dev/null
+++ b/helloworld/node_modules/prepend-http/readme.md
@@ -0,0 +1,56 @@
+# prepend-http [![Build Status](https://travis-ci.org/sindresorhus/prepend-http.svg?branch=master)](https://travis-ci.org/sindresorhus/prepend-http)
+
+> Prepend `http://` to humanized URLs like `todomvc.com` and `localhost`
+
+
+## Install
+
+```
+$ npm install prepend-http
+```
+
+
+## Usage
+
+```js
+const prependHttp = require('prepend-http');
+
+prependHttp('todomvc.com');
+//=> 'http://todomvc.com'
+
+prependHttp('localhost');
+//=> 'http://localhost'
+
+prependHttp('http://todomvc.com');
+//=> 'http://todomvc.com'
+
+prependHttp('todomvc.com', {https: true});
+//=> 'https://todomvc.com'
+```
+
+
+## API
+
+### prependHttp(url, [options])
+
+#### url
+
+Type: `string`
+
+URL to prepend `http://` on.
+
+#### options
+
+Type: `Object`
+
+##### https
+
+Type: `boolean`<br>
+Default: `false`
+
+Prepend `https://` instead of `http://`.
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/helloworld/node_modules/public-ip/browser.js b/helloworld/node_modules/public-ip/browser.js
new file mode 100755
index 0000000..eba8ec3
--- /dev/null
+++ b/helloworld/node_modules/public-ip/browser.js
@@ -0,0 +1,48 @@
+'use strict';
+const isIp = require('is-ip');
+
+const defaults = {
+	timeout: 5000
+};
+
+const urls = {
+	v4: 'https://ipv4.icanhazip.com/',
+	v6: 'https://ipv6.icanhazip.com/'
+};
+
+const queryHttps = (version, options) => {
+	let xhr;
+	const promise = new Promise((resolve, reject) => {
+		const doReject = () => {
+			reject(new Error('Couldn\'t find your IP'));
+		};
+
+		xhr = new XMLHttpRequest();
+		xhr.addEventListener('error', doReject, {once: true});
+		xhr.addEventListener('timeout', doReject, {once: true});
+
+		xhr.addEventListener('load', () => {
+			const ip = xhr.responseText.trim();
+
+			if (!ip || !isIp[version](ip)) {
+				doReject();
+			}
+
+			resolve(ip);
+		}, {once: true});
+
+		xhr.open('GET', urls[version]);
+		xhr.timeout = options.timeout;
+		xhr.send();
+	});
+
+	promise.cancel = () => {
+		xhr.abort();
+	};
+
+	return promise;
+};
+
+module.exports.v4 = options => queryHttps('v4', {...defaults, ...options});
+
+module.exports.v6 = options => queryHttps('v6', {...defaults, ...options});
diff --git a/helloworld/node_modules/public-ip/index.js b/helloworld/node_modules/public-ip/index.js
new file mode 100755
index 0000000..e2741af
--- /dev/null
+++ b/helloworld/node_modules/public-ip/index.js
@@ -0,0 +1,118 @@
+'use strict';
+const {promisify} = require('util');
+const dgram = require('dgram');
+const dns = require('dns-socket');
+const got = require('got');
+const isIp = require('is-ip');
+
+const defaults = {
+	timeout: 5000,
+	https: false
+};
+
+const type = {
+	v4: {
+		dnsServer: '208.67.222.222',
+		dnsQuestion: {
+			name: 'myip.opendns.com',
+			type: 'A'
+		},
+		httpsUrl: 'https://ipv4.icanhazip.com/'
+	},
+	v6: {
+		dnsServer: '2620:0:ccc::2',
+		dnsQuestion: {
+			name: 'myip.opendns.com',
+			type: 'AAAA'
+		},
+		httpsUrl: 'https://ipv6.icanhazip.com/'
+	}
+};
+
+const queryDns = (version, options) => {
+	const data = type[version];
+
+	const socket = dns({
+		retries: 0,
+		socket: dgram.createSocket(version === 'v6' ? 'udp6' : 'udp4'),
+		timeout: options.timeout
+	});
+
+	const socketQuery = promisify(socket.query.bind(socket));
+
+	// eslint-disable-next-line promise/prefer-await-to-then
+	const promise = socketQuery({questions: [data.dnsQuestion]}, 53, data.dnsServer).then(({answers}) => {
+		socket.destroy();
+
+		const ip = ((answers[0] && answers[0].data) || '').trim();
+
+		if (!ip || !isIp[version](ip)) {
+			throw new Error('Couldn\'t find your IP');
+		}
+
+		return ip;
+	}).catch(error => { // TODO: Move both the `socket.destroy()` calls into a `Promise#finally()` handerl when targeting Node.js 10.
+		socket.destroy();
+		throw error;
+	});
+
+	promise.cancel = () => {
+		socket.cancel();
+	};
+
+	return promise;
+};
+
+const queryHttps = (version, options) => {
+	const gotPromise = got(type[version].httpsUrl, {
+		family: version === 'v6' ? 6 : 4,
+		retries: 0,
+		timeout: options.timeout
+	});
+
+	// eslint-disable-next-line promise/prefer-await-to-then
+	const promise = gotPromise.then(({body}) => {
+		const ip = (body || '').trim();
+
+		if (!ip) {
+			throw new Error('Couldn\'t find your IP');
+		}
+
+		return ip;
+	}).catch(error => {
+		// Don't throw a cancellation error for consistency with DNS
+		if (!(error instanceof got.CancelError)) {
+			throw error;
+		}
+	});
+
+	promise.cancel = gotPromise.cancel;
+
+	return promise;
+};
+
+module.exports.v4 = options => {
+	options = {
+		...defaults,
+		...options
+	};
+
+	if (options.https) {
+		return queryHttps('v4', options);
+	}
+
+	return queryDns('v4', options);
+};
+
+module.exports.v6 = options => {
+	options = {
+		...defaults,
+		...options
+	};
+
+	if (options.https) {
+		return queryHttps('v6', options);
+	}
+
+	return queryDns('v6', options);
+};
diff --git a/helloworld/node_modules/public-ip/license b/helloworld/node_modules/public-ip/license
new file mode 100755
index 0000000..e7af2f7
--- /dev/null
+++ b/helloworld/node_modules/public-ip/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/public-ip/readme.md b/helloworld/node_modules/public-ip/readme.md
new file mode 100755
index 0000000..47be88b
--- /dev/null
+++ b/helloworld/node_modules/public-ip/readme.md
@@ -0,0 +1,69 @@
+# public-ip [![Build Status](https://travis-ci.org/sindresorhus/public-ip.svg?branch=master)](https://travis-ci.org/sindresorhus/public-ip)
+
+> Get your public IP address - very fast!
+
+In Node.js, it queries the DNS records of OpenDNS which has an entry with your IP address. In browsers, it uses the excellent [icanhaz](https://github.com/major/icanhaz) service through HTTPS.
+
+
+## Install
+
+```
+$ npm install public-ip
+```
+
+
+## Usage
+
+```js
+const publicIp = require('public-ip');
+
+(async () => {
+	console.log(await publicIp.v4());
+	//=> '46.5.21.123'
+
+	console.log(await publicIp.v6());
+	//=> 'fe80::200:f8ff:fe21:67cf'
+})();
+```
+
+
+## API
+
+### publicIp.v4([options])
+### publicIp.v6([options])
+
+Returns a `Promise` which resolves to your public IPv4 or IPv6 address. Rejects on error or timeout. A `.cancel()` method is available on the promise, which can be used to cancel the request.
+
+#### options
+
+Type: `Object`
+
+##### https
+
+Type: `boolean`<br>
+Default: `false`
+
+Use a HTTPS check using the [icanhazip.com](https://github.com/major/icanhaz) service instead of the DNS query. This check is much more secure and tamper-proof, but also a lot slower. **This option is only available in the Node.js version**.
+
+##### timeout
+
+Type: `number`<br>
+Default: `5000`
+
+The time in milliseconds until a request is considered timed out.
+
+
+## Maintainers
+
+- [silverwind](https://github.com/silverwind)
+
+
+## Related
+
+- [public-ip-cli](https://github.com/sindresorhus/public-ip-cli) - CLI for this module
+- [internal-ip](https://github.com/sindresorhus/internal-ip) - Get your internal IP address
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/helloworld/node_modules/pump/LICENSE b/helloworld/node_modules/pump/LICENSE
new file mode 100755
index 0000000..757562e
--- /dev/null
+++ b/helloworld/node_modules/pump/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Mathias Buus
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
\ No newline at end of file
diff --git a/helloworld/node_modules/pump/README.md b/helloworld/node_modules/pump/README.md
new file mode 100755
index 0000000..4c81471
--- /dev/null
+++ b/helloworld/node_modules/pump/README.md
@@ -0,0 +1,65 @@
+# pump
+
+pump is a small node module that pipes streams together and destroys all of them if one of them closes.
+
+```
+npm install pump
+```
+
+[![build status](http://img.shields.io/travis/mafintosh/pump.svg?style=flat)](http://travis-ci.org/mafintosh/pump)
+
+## What problem does it solve?
+
+When using standard `source.pipe(dest)` source will _not_ be destroyed if dest emits close or an error.
+You are also not able to provide a callback to tell when then pipe has finished.
+
+pump does these two things for you
+
+## Usage
+
+Simply pass the streams you want to pipe together to pump and add an optional callback
+
+``` js
+var pump = require('pump')
+var fs = require('fs')
+
+var source = fs.createReadStream('/dev/random')
+var dest = fs.createWriteStream('/dev/null')
+
+pump(source, dest, function(err) {
+  console.log('pipe finished', err)
+})
+
+setTimeout(function() {
+  dest.destroy() // when dest is closed pump will destroy source
+}, 1000)
+```
+
+You can use pump to pipe more than two streams together as well
+
+``` js
+var transform = someTransformStream()
+
+pump(source, transform, anotherTransform, dest, function(err) {
+  console.log('pipe finished', err)
+})
+```
+
+If `source`, `transform`, `anotherTransform` or `dest` closes all of them will be destroyed.
+
+Similarly to `stream.pipe()`, `pump()` returns the last stream passed in, so you can do:
+
+```
+return pump(s1, s2) // returns s2
+```
+
+If you want to return a stream that combines *both* s1 and s2 to a single stream use
+[pumpify](https://github.com/mafintosh/pumpify) instead.
+
+## License
+
+MIT
+
+## Related
+
+`pump` is part of the [mississippi stream utility collection](https://github.com/maxogden/mississippi) which includes more useful stream modules similar to this one.
diff --git a/helloworld/node_modules/pump/index.js b/helloworld/node_modules/pump/index.js
new file mode 100755
index 0000000..c15059f
--- /dev/null
+++ b/helloworld/node_modules/pump/index.js
@@ -0,0 +1,82 @@
+var once = require('once')
+var eos = require('end-of-stream')
+var fs = require('fs') // we only need fs to get the ReadStream and WriteStream prototypes
+
+var noop = function () {}
+var ancient = /^v?\.0/.test(process.version)
+
+var isFn = function (fn) {
+  return typeof fn === 'function'
+}
+
+var isFS = function (stream) {
+  if (!ancient) return false // newer node version do not need to care about fs is a special way
+  if (!fs) return false // browser
+  return (stream instanceof (fs.ReadStream || noop) || stream instanceof (fs.WriteStream || noop)) && isFn(stream.close)
+}
+
+var isRequest = function (stream) {
+  return stream.setHeader && isFn(stream.abort)
+}
+
+var destroyer = function (stream, reading, writing, callback) {
+  callback = once(callback)
+
+  var closed = false
+  stream.on('close', function () {
+    closed = true
+  })
+
+  eos(stream, {readable: reading, writable: writing}, function (err) {
+    if (err) return callback(err)
+    closed = true
+    callback()
+  })
+
+  var destroyed = false
+  return function (err) {
+    if (closed) return
+    if (destroyed) return
+    destroyed = true
+
+    if (isFS(stream)) return stream.close(noop) // use close for fs streams to avoid fd leaks
+    if (isRequest(stream)) return stream.abort() // request.destroy just do .end - .abort is what we want
+
+    if (isFn(stream.destroy)) return stream.destroy()
+
+    callback(err || new Error('stream was destroyed'))
+  }
+}
+
+var call = function (fn) {
+  fn()
+}
+
+var pipe = function (from, to) {
+  return from.pipe(to)
+}
+
+var pump = function () {
+  var streams = Array.prototype.slice.call(arguments)
+  var callback = isFn(streams[streams.length - 1] || noop) && streams.pop() || noop
+
+  if (Array.isArray(streams[0])) streams = streams[0]
+  if (streams.length < 2) throw new Error('pump requires two streams per minimum')
+
+  var error
+  var destroys = streams.map(function (stream, i) {
+    var reading = i < streams.length - 1
+    var writing = i > 0
+    return destroyer(stream, reading, writing, function (err) {
+      if (!error) error = err
+      if (err) destroys.forEach(call)
+      if (reading) return
+      destroys.forEach(call)
+      callback(error)
+    })
+  })
+
+  return streams.reduce(pipe)
+}
+
+module.exports = pump
diff --git a/helloworld/node_modules/pump/package.json b/helloworld/node_modules/pump/package.json
new file mode 100755
index 0000000..9a8285d
--- /dev/null
+++ b/helloworld/node_modules/pump/package.json
@@ -0,0 +1,59 @@
+{
+  "_from": "pump@^3.0.0",
+  "_id": "pump@3.0.0",
+  "_inBundle": false,
+  "_integrity": "sha512-LwZy+p3SFs1Pytd/jYct4wpv49HiYCqd9Rlc5ZVdk0V+8Yzv6jR5Blk3TRmPL1ft69TxP0IMZGJ+WPFU2BFhww==",
+  "_location": "/pump",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "pump@^3.0.0",
+    "name": "pump",
+    "escapedName": "pump",
+    "rawSpec": "^3.0.0",
+    "saveSpec": null,
+    "fetchSpec": "^3.0.0"
+  },
+  "_requiredBy": [
+    "/get-stream"
+  ],
+  "_resolved": "https://registry.npmjs.org/pump/-/pump-3.0.0.tgz",
+  "_shasum": "b4a2116815bde2f4e1ea602354e8c75565107a64",
+  "_spec": "pump@^3.0.0",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/get-stream",
+  "author": {
+    "name": "Mathias Buus Madsen",
+    "email": "mathiasbuus@gmail.com"
+  },
+  "browser": {
+    "fs": false
+  },
+  "bugs": {
+    "url": "https://github.com/mafintosh/pump/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "end-of-stream": "^1.1.0",
+    "once": "^1.3.1"
+  },
+  "deprecated": false,
+  "description": "pipe streams together and close all of them if one of them closes",
+  "homepage": "https://github.com/mafintosh/pump#readme",
+  "keywords": [
+    "streams",
+    "pipe",
+    "destroy",
+    "callback"
+  ],
+  "license": "MIT",
+  "name": "pump",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/mafintosh/pump.git"
+  },
+  "scripts": {
+    "test": "node test-browser.js && node test-node.js"
+  },
+  "version": "3.0.0"
+}
diff --git a/helloworld/node_modules/pump/test-browser.js b/helloworld/node_modules/pump/test-browser.js
new file mode 100755
index 0000000..9a06c8a
--- /dev/null
+++ b/helloworld/node_modules/pump/test-browser.js
@@ -0,0 +1,66 @@
+var stream = require('stream')
+var pump = require('./index')
+
+var rs = new stream.Readable()
+var ws = new stream.Writable()
+
+rs._read = function (size) {
+  this.push(Buffer(size).fill('abc'))
+}
+
+ws._write = function (chunk, encoding, cb) {
+  setTimeout(function () {
+    cb()
+  }, 100)
+}
+
+var toHex = function () {
+  var reverse = new (require('stream').Transform)()
+
+  reverse._transform = function (chunk, enc, callback) {
+    reverse.push(chunk.toString('hex'))
+    callback()
+  }
+
+  return reverse
+}
+
+var wsClosed = false
+var rsClosed = false
+var callbackCalled = false
+
+var check = function () {
+  if (wsClosed && rsClosed && callbackCalled) {
+    console.log('test-browser.js passes')
+    clearTimeout(timeout)
+  }
+}
+
+ws.on('finish', function () {
+  wsClosed = true
+  check()
+})
+
+rs.on('end', function () {
+  rsClosed = true
+  check()
+})
+
+var res = pump(rs, toHex(), toHex(), toHex(), ws, function () {
+  callbackCalled = true
+  check()
+})
+
+if (res !== ws) {
+  throw new Error('should return last stream')
+}
+
+setTimeout(function () {
+  rs.push(null)
+  rs.emit('close')
+}, 1000)
+
+var timeout = setTimeout(function () {
+  check()
+  throw new Error('timeout')
+}, 5000)
diff --git a/helloworld/node_modules/pump/test-node.js b/helloworld/node_modules/pump/test-node.js
new file mode 100755
index 0000000..561251a
--- /dev/null
+++ b/helloworld/node_modules/pump/test-node.js
@@ -0,0 +1,53 @@
+var pump = require('./index')
+
+var rs = require('fs').createReadStream('/dev/random')
+var ws = require('fs').createWriteStream('/dev/null')
+
+var toHex = function () {
+  var reverse = new (require('stream').Transform)()
+
+  reverse._transform = function (chunk, enc, callback) {
+    reverse.push(chunk.toString('hex'))
+    callback()
+  }
+
+  return reverse
+}
+
+var wsClosed = false
+var rsClosed = false
+var callbackCalled = false
+
+var check = function () {
+  if (wsClosed && rsClosed && callbackCalled) {
+    console.log('test-node.js passes')
+    clearTimeout(timeout)
+  }
+}
+
+ws.on('close', function () {
+  wsClosed = true
+  check()
+})
+
+rs.on('close', function () {
+  rsClosed = true
+  check()
+})
+
+var res = pump(rs, toHex(), toHex(), toHex(), ws, function () {
+  callbackCalled = true
+  check()
+})
+
+if (res !== ws) {
+  throw new Error('should return last stream')
+}
+
+setTimeout(function () {
+  rs.destroy()
+}, 1000)
+
+var timeout = setTimeout(function () {
+  throw new Error('timeout')
+}, 5000)
diff --git a/helloworld/node_modules/read-pkg-up/index.js b/helloworld/node_modules/read-pkg-up/index.js
new file mode 100755
index 0000000..beb3d48
--- /dev/null
+++ b/helloworld/node_modules/read-pkg-up/index.js
@@ -0,0 +1,31 @@
+'use strict';
+var findUp = require('find-up');
+var readPkg = require('read-pkg');
+
+module.exports = function (opts) {
+	return findUp('package.json', opts).then(function (fp) {
+		if (!fp) {
+			return {};
+		}
+
+		return readPkg(fp, opts).then(function (pkg) {
+			return {
+				pkg: pkg,
+				path: fp
+			};
+		});
+	});
+};
+
+module.exports.sync = function (opts) {
+	var fp = findUp.sync('package.json', opts);
+
+	if (!fp) {
+		return {};
+	}
+
+	return {
+		pkg: readPkg.sync(fp, opts),
+		path: fp
+	};
+};
diff --git a/helloworld/node_modules/read-pkg-up/license b/helloworld/node_modules/read-pkg-up/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/read-pkg-up/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/read-pkg-up/readme.md b/helloworld/node_modules/read-pkg-up/readme.md
new file mode 100755
index 0000000..dbd88f3
--- /dev/null
+++ b/helloworld/node_modules/read-pkg-up/readme.md
@@ -0,0 +1,79 @@
+# read-pkg-up [![Build Status](https://travis-ci.org/sindresorhus/read-pkg-up.svg?branch=master)](https://travis-ci.org/sindresorhus/read-pkg-up)
+
+> Read the closest package.json file
+
+
+## Why
+
+- [Finds the closest package.json](https://github.com/sindresorhus/find-up)
+- [Gracefully handles filesystem issues](https://github.com/isaacs/node-graceful-fs)
+- [Strips UTF-8 BOM](https://github.com/sindresorhus/strip-bom)
+- [Throws more helpful JSON errors](https://github.com/sindresorhus/parse-json)
+- [Normalizes the data](https://github.com/npm/normalize-package-data#what-normalization-currently-entails)
+
+
+## Install
+
+```
+$ npm install --save read-pkg-up
+```
+
+
+## Usage
+
+```js
+var readPkgUp = require('read-pkg-up');
+
+readPkgUp().then(function (result) {
+	console.log(result);
+	/*
+	{
+		pkg: {
+			name: 'awesome-package',
+			version: '1.0.0',
+			...
+		},
+		path: '/Users/sindresorhus/dev/awesome-package'
+	}
+	*/
+});
+```
+
+
+## API
+
+### readPkgUp([options])
+
+Returns a promise that resolves to a result object.
+
+### readPkgUp.sync([options])
+
+Returns a result object.
+
+#### options
+
+##### cwd
+
+Type: `string`  
+Default: `.`
+
+Directory to start looking for a package.json file.
+
+##### normalize
+
+Type: `boolean`  
+Default: `true`
+
+[Normalize](https://github.com/npm/normalize-package-data#what-normalization-currently-entails) the package data.
+
+
+## Related
+
+- [read-pkg](https://github.com/sindresorhus/read-pkg) - Read a package.json file
+- [find-up](https://github.com/sindresorhus/find-up) - Find a file by walking up parent directories
+- [pkg-conf](https://github.com/sindresorhus/pkg-conf) - Get namespaced config from the closest package.json
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/read-pkg/index.js b/helloworld/node_modules/read-pkg/index.js
new file mode 100755
index 0000000..c5c3afa
--- /dev/null
+++ b/helloworld/node_modules/read-pkg/index.js
@@ -0,0 +1,48 @@
+'use strict';
+var path = require('path');
+var loadJsonFile = require('load-json-file');
+var normalizePackageData = require('normalize-package-data');
+var pathType = require('path-type');
+
+module.exports = function (fp, opts) {
+	if (typeof fp !== 'string') {
+		opts = fp;
+		fp = '.';
+	}
+
+	opts = opts || {};
+
+	return pathType.dir(fp)
+		.then(function (isDir) {
+			if (isDir) {
+				fp = path.join(fp, 'package.json');
+			}
+
+			return loadJsonFile(fp);
+		})
+		.then(function (x) {
+			if (opts.normalize !== false) {
+				normalizePackageData(x);
+			}
+
+			return x;
+		});
+};
+
+module.exports.sync = function (fp, opts) {
+	if (typeof fp !== 'string') {
+		opts = fp;
+		fp = '.';
+	}
+
+	opts = opts || {};
+	fp = pathType.dirSync(fp) ? path.join(fp, 'package.json') : fp;
+
+	var x = loadJsonFile.sync(fp);
+
+	if (opts.normalize !== false) {
+		normalizePackageData(x);
+	}
+
+	return x;
+};
diff --git a/helloworld/node_modules/read-pkg/license b/helloworld/node_modules/read-pkg/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/read-pkg/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/read-pkg/readme.md b/helloworld/node_modules/read-pkg/readme.md
new file mode 100755
index 0000000..9a0d4cc
--- /dev/null
+++ b/helloworld/node_modules/read-pkg/readme.md
@@ -0,0 +1,79 @@
+# read-pkg [![Build Status](https://travis-ci.org/sindresorhus/read-pkg.svg?branch=master)](https://travis-ci.org/sindresorhus/read-pkg)
+
+> Read a package.json file
+
+
+## Why
+
+- [Gracefully handles filesystem issues](https://github.com/isaacs/node-graceful-fs)
+- [Strips UTF-8 BOM](https://github.com/sindresorhus/strip-bom)
+- [Throws more helpful JSON errors](https://github.com/sindresorhus/parse-json)
+- [Normalizes the data](https://github.com/npm/normalize-package-data#what-normalization-currently-entails)
+
+
+## Install
+
+```
+$ npm install --save read-pkg
+```
+
+
+## Usage
+
+```js
+var readPkg = require('read-pkg');
+
+readPkg().then(function (pkg) {
+	console.log(pkg);
+	//=> {name: 'read-pkg', ...}
+});
+
+readPkg(__dirname).then(function (pkg) {
+	console.log(pkg);
+	//=> {name: 'read-pkg', ...}
+});
+
+readPkg(path.join('unicorn', 'package.json')).then(function (pkg) {
+	console.log(pkg);
+	//=> {name: 'read-pkg', ...}
+});
+```
+
+
+## API
+
+### readPkg([path], [options])
+
+Returns a promise that resolves to the parsed JSON.
+
+### readPkg.sync([path], [options])
+
+Returns the parsed JSON.
+
+#### path
+
+Type: `string`  
+Default: `.`
+
+Path to a `package.json` file or its directory.
+
+#### options
+
+##### normalize
+
+Type: `boolean`  
+Default: `true`
+
+[Normalize](https://github.com/npm/normalize-package-data#what-normalization-currently-entails) the package data.
+
+
+## Related
+
+- [read-pkg-up](https://github.com/sindresorhus/read-pkg-up) - Read the closest package.json file
+- [write-pkg](https://github.com/sindresorhus/write-pkg) - Write a `package.json` file
+- [load-json-file](https://github.com/sindresorhus/load-json-file) - Read and parse a JSON file
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/require-directory/LICENSE b/helloworld/node_modules/require-directory/LICENSE
new file mode 100755
index 0000000..a70f253
--- /dev/null
+++ b/helloworld/node_modules/require-directory/LICENSE
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2011 Troy Goode <troygoode@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/require-directory/README.markdown b/helloworld/node_modules/require-directory/README.markdown
new file mode 100755
index 0000000..926a063
--- /dev/null
+++ b/helloworld/node_modules/require-directory/README.markdown
@@ -0,0 +1,184 @@
+# require-directory
+
+Recursively iterates over specified directory, `require()`'ing each file, and returning a nested hash structure containing those modules.
+
+**[Follow me (@troygoode) on Twitter!](https://twitter.com/intent/user?screen_name=troygoode)**
+
+[![NPM](https://nodei.co/npm/require-directory.png?downloads=true&stars=true)](https://nodei.co/npm/require-directory/)
+
+[![build status](https://secure.travis-ci.org/troygoode/node-require-directory.png)](http://travis-ci.org/troygoode/node-require-directory)
+
+## How To Use
+
+### Installation (via [npm](https://npmjs.org/package/require-directory))
+
+```bash
+$ npm install require-directory
+```
+
+### Usage
+
+A common pattern in node.js is to include an index file which creates a hash of the files in its current directory. Given a directory structure like so:
+
+* app.js
+* routes/
+  * index.js
+  * home.js
+  * auth/
+    * login.js
+    * logout.js
+    * register.js
+
+`routes/index.js` uses `require-directory` to build the hash (rather than doing so manually) like so:
+
+```javascript
+var requireDirectory = require('require-directory');
+module.exports = requireDirectory(module);
+```
+
+`app.js` references `routes/index.js` like any other module, but it now has a hash/tree of the exports from the `./routes/` directory:
+
+```javascript
+var routes = require('./routes');
+
+// snip
+
+app.get('/', routes.home);
+app.get('/register', routes.auth.register);
+app.get('/login', routes.auth.login);
+app.get('/logout', routes.auth.logout);
+```
+
+The `routes` variable above is the equivalent of this:
+
+```javascript
+var routes = {
+  home: require('routes/home.js'),
+  auth: {
+    login: require('routes/auth/login.js'),
+    logout: require('routes/auth/logout.js'),
+    register: require('routes/auth/register.js')
+  }
+};
+```
+
+*Note that `routes.index` will be `undefined` as you would hope.*
+
+### Specifying Another Directory
+
+You can specify which directory you want to build a tree of (if it isn't the current directory for whatever reason) by passing it as the second parameter. Not specifying the path (`requireDirectory(module)`) is the equivelant of `requireDirectory(module, __dirname)`:
+
+```javascript
+var requireDirectory = require('require-directory');
+module.exports = requireDirectory(module, './some/subdirectory');
+```
+
+For example, in the [example in the Usage section](#usage) we could have avoided creating `routes/index.js` and instead changed the first lines of `app.js` to:
+
+```javascript
+var requireDirectory = require('require-directory');
+var routes = requireDirectory(module, './routes');
+```
+
+## Options
+
+You can pass an options hash to `require-directory` as the 2nd parameter (or 3rd if you're passing the path to another directory as the 2nd parameter already). Here are the available options:
+
+### Whitelisting
+
+Whitelisting (either via RegExp or function) allows you to specify that only certain files be loaded.
+
+```javascript
+var requireDirectory = require('require-directory'),
+  whitelist = /onlyinclude.js$/,
+  hash = requireDirectory(module, {include: whitelist});
+```
+
+```javascript
+var requireDirectory = require('require-directory'),
+  check = function(path){
+    if(/onlyinclude.js$/.test(path)){
+      return true; // don't include
+    }else{
+      return false; // go ahead and include
+    }
+  },
+  hash = requireDirectory(module, {include: check});
+```
+
+### Blacklisting
+
+Blacklisting (either via RegExp or function) allows you to specify that all but certain files should be loaded.
+
+```javascript
+var requireDirectory = require('require-directory'),
+  blacklist = /dontinclude\.js$/,
+  hash = requireDirectory(module, {exclude: blacklist});
+```
+
+```javascript
+var requireDirectory = require('require-directory'),
+  check = function(path){
+    if(/dontinclude\.js$/.test(path)){
+      return false; // don't include
+    }else{
+      return true; // go ahead and include
+    }
+  },
+  hash = requireDirectory(module, {exclude: check});
+```
+
+### Visiting Objects As They're Loaded
+
+`require-directory` takes a function as the `visit` option that will be called for each module that is added to module.exports.
+
+```javascript
+var requireDirectory = require('require-directory'),
+  visitor = function(obj) {
+    console.log(obj); // will be called for every module that is loaded
+  },
+  hash = requireDirectory(module, {visit: visitor});
+```
+
+The visitor can also transform the objects by returning a value:
+
+```javascript
+var requireDirectory = require('require-directory'),
+  visitor = function(obj) {
+    return obj(new Date());
+  },
+  hash = requireDirectory(module, {visit: visitor});
+```
+
+### Renaming Keys
+
+```javascript
+var requireDirectory = require('require-directory'),
+  renamer = function(name) {
+    return name.toUpperCase();
+  },
+  hash = requireDirectory(module, {rename: renamer});
+```
+
+### No Recursion
+
+```javascript
+var requireDirectory = require('require-directory'),
+  hash = requireDirectory(module, {recurse: false});
+```
+
+## Run Unit Tests
+
+```bash
+$ npm run lint
+$ npm test
+```
+
+## License
+
+[MIT License](http://www.opensource.org/licenses/mit-license.php)
+
+## Author
+
+[Troy Goode](https://github.com/TroyGoode) ([troygoode@gmail.com](mailto:troygoode@gmail.com))
+
diff --git a/helloworld/node_modules/require-directory/index.js b/helloworld/node_modules/require-directory/index.js
new file mode 100755
index 0000000..cd37da7
--- /dev/null
+++ b/helloworld/node_modules/require-directory/index.js
@@ -0,0 +1,86 @@
+'use strict';
+
+var fs = require('fs'),
+  join = require('path').join,
+  resolve = require('path').resolve,
+  dirname = require('path').dirname,
+  defaultOptions = {
+    extensions: ['js', 'json', 'coffee'],
+    recurse: true,
+    rename: function (name) {
+      return name;
+    },
+    visit: function (obj) {
+      return obj;
+    }
+  };
+
+function checkFileInclusion(path, filename, options) {
+  return (
+    // verify file has valid extension
+    (new RegExp('\\.(' + options.extensions.join('|') + ')$', 'i').test(filename)) &&
+
+    // if options.include is a RegExp, evaluate it and make sure the path passes
+    !(options.include && options.include instanceof RegExp && !options.include.test(path)) &&
+
+    // if options.include is a function, evaluate it and make sure the path passes
+    !(options.include && typeof options.include === 'function' && !options.include(path, filename)) &&
+
+    // if options.exclude is a RegExp, evaluate it and make sure the path doesn't pass
+    !(options.exclude && options.exclude instanceof RegExp && options.exclude.test(path)) &&
+
+    // if options.exclude is a function, evaluate it and make sure the path doesn't pass
+    !(options.exclude && typeof options.exclude === 'function' && options.exclude(path, filename))
+  );
+}
+
+function requireDirectory(m, path, options) {
+  var retval = {};
+
+  // path is optional
+  if (path && !options && typeof path !== 'string') {
+    options = path;
+    path = null;
+  }
+
+  // default options
+  options = options || {};
+  for (var prop in defaultOptions) {
+    if (typeof options[prop] === 'undefined') {
+      options[prop] = defaultOptions[prop];
+    }
+  }
+
+  // if no path was passed in, assume the equivelant of __dirname from caller
+  // otherwise, resolve path relative to the equivalent of __dirname
+  path = !path ? dirname(m.filename) : resolve(dirname(m.filename), path);
+
+  // get the path of each file in specified directory, append to current tree node, recurse
+  fs.readdirSync(path).forEach(function (filename) {
+    var joined = join(path, filename),
+      files,
+      key,
+      obj;
+
+    if (fs.statSync(joined).isDirectory() && options.recurse) {
+      // this node is a directory; recurse
+      files = requireDirectory(m, joined, options);
+      // exclude empty directories
+      if (Object.keys(files).length) {
+        retval[options.rename(filename, joined, filename)] = files;
+      }
+    } else {
+      if (joined !== m.filename && checkFileInclusion(joined, filename, options)) {
+        // hash node key shouldn't include file extension
+        key = filename.substring(0, filename.lastIndexOf('.'));
+        obj = m.require(joined);
+        retval[options.rename(key, joined, filename)] = options.visit(obj, joined, filename) || obj;
+      }
+    }
+  });
+
+  return retval;
+}
+
+module.exports = requireDirectory;
+module.exports.defaults = defaultOptions;
diff --git a/helloworld/node_modules/require-directory/package.json b/helloworld/node_modules/require-directory/package.json
new file mode 100755
index 0000000..474c52f
--- /dev/null
+++ b/helloworld/node_modules/require-directory/package.json
@@ -0,0 +1,69 @@
+{
+  "_from": "require-directory@^2.1.1",
+  "_id": "require-directory@2.1.1",
+  "_inBundle": false,
+  "_integrity": "sha1-jGStX9MNqxyXbiNE/+f3kqam30I=",
+  "_location": "/require-directory",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "require-directory@^2.1.1",
+    "name": "require-directory",
+    "escapedName": "require-directory",
+    "rawSpec": "^2.1.1",
+    "saveSpec": null,
+    "fetchSpec": "^2.1.1"
+  },
+  "_requiredBy": [
+    "/yargs"
+  ],
+  "_resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
+  "_shasum": "8c64ad5fd30dab1c976e2344ffe7f792a6a6df42",
+  "_spec": "require-directory@^2.1.1",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/yargs",
+  "author": {
+    "name": "Troy Goode",
+    "email": "troygoode@gmail.com",
+    "url": "http://github.com/troygoode/"
+  },
+  "bugs": {
+    "url": "http://github.com/troygoode/node-require-directory/issues/"
+  },
+  "bundleDependencies": false,
+  "contributors": [
+    {
+      "name": "Troy Goode",
+      "email": "troygoode@gmail.com",
+      "url": "http://github.com/troygoode/"
+    }
+  ],
+  "deprecated": false,
+  "description": "Recursively iterates over specified directory, require()'ing each file, and returning a nested hash structure containing those modules.",
+  "devDependencies": {
+    "jshint": "^2.6.0",
+    "mocha": "^2.1.0"
+  },
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "homepage": "https://github.com/troygoode/node-require-directory/",
+  "keywords": [
+    "require",
+    "directory",
+    "library",
+    "recursive"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "name": "require-directory",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/troygoode/node-require-directory.git"
+  },
+  "scripts": {
+    "lint": "jshint index.js test/test.js",
+    "test": "mocha"
+  },
+  "version": "2.1.1"
+}
diff --git a/helloworld/node_modules/require-main-filename/LICENSE.txt b/helloworld/node_modules/require-main-filename/LICENSE.txt
new file mode 100755
index 0000000..836440b
--- /dev/null
+++ b/helloworld/node_modules/require-main-filename/LICENSE.txt
@@ -0,0 +1,14 @@
+Copyright (c) 2016, Contributors
+
+Permission to use, copy, modify, and/or distribute this software
+for any purpose with or without fee is hereby granted, provided
+that the above copyright notice and this permission notice
+appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE
+LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
+OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/helloworld/node_modules/require-main-filename/README.md b/helloworld/node_modules/require-main-filename/README.md
new file mode 100755
index 0000000..820d9f5
--- /dev/null
+++ b/helloworld/node_modules/require-main-filename/README.md
@@ -0,0 +1,26 @@
+# require-main-filename
+
+[![Build Status](https://travis-ci.org/yargs/require-main-filename.png)](https://travis-ci.org/yargs/require-main-filename)
+[![Coverage Status](https://coveralls.io/repos/yargs/require-main-filename/badge.svg?branch=master)](https://coveralls.io/r/yargs/require-main-filename?branch=master)
+[![NPM version](https://img.shields.io/npm/v/require-main-filename.svg)](https://www.npmjs.com/package/require-main-filename)
+
+`require.main.filename` is great for figuring out the entry
+point for the current application. This can be combined with a module like
+[pkg-conf](https://www.npmjs.com/package/pkg-conf) to, _as if by magic_, load
+top-level configuration.
+
+Unfortunately, `require.main.filename` sometimes fails when an application is
+executed with an alternative process manager, e.g., [iisnode](https://github.com/tjanczuk/iisnode).
+
+`require-main-filename` is a shim that addresses this problem.
+
+## Usage
+
+```js
+var main = require('require-main-filename')()
+// use main as an alternative to require.main.filename.
+```
+
+## License
+
+ISC
diff --git a/helloworld/node_modules/require-main-filename/index.js b/helloworld/node_modules/require-main-filename/index.js
new file mode 100755
index 0000000..dca7f0c
--- /dev/null
+++ b/helloworld/node_modules/require-main-filename/index.js
@@ -0,0 +1,18 @@
+module.exports = function (_require) {
+  _require = _require || require
+  var main = _require.main
+  if (main && isIISNode(main)) return handleIISNode(main)
+  else return main ? main.filename : process.cwd()
+}
+
+function isIISNode (main) {
+  return /\\iisnode\\/.test(main.filename)
+}
+
+function handleIISNode (main) {
+  if (!main.children.length) {
+    return main.filename
+  } else {
+    return main.children[0].filename
+  }
+}
diff --git a/helloworld/node_modules/require-main-filename/package.json b/helloworld/node_modules/require-main-filename/package.json
new file mode 100755
index 0000000..a809c9c
--- /dev/null
+++ b/helloworld/node_modules/require-main-filename/package.json
@@ -0,0 +1,58 @@
+{
+  "_from": "require-main-filename@^1.0.1",
+  "_id": "require-main-filename@1.0.1",
+  "_inBundle": false,
+  "_integrity": "sha1-l/cXtp1IeE9fUmpsWqj/3aBVpNE=",
+  "_location": "/require-main-filename",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "require-main-filename@^1.0.1",
+    "name": "require-main-filename",
+    "escapedName": "require-main-filename",
+    "rawSpec": "^1.0.1",
+    "saveSpec": null,
+    "fetchSpec": "^1.0.1"
+  },
+  "_requiredBy": [
+    "/yargs"
+  ],
+  "_resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-1.0.1.tgz",
+  "_shasum": "97f717b69d48784f5f526a6c5aa8ffdda055a4d1",
+  "_spec": "require-main-filename@^1.0.1",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/yargs",
+  "author": {
+    "name": "Ben Coe",
+    "email": "ben@npmjs.com"
+  },
+  "bugs": {
+    "url": "https://github.com/yargs/require-main-filename/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "shim for require.main.filename() that works in as many environments as possible",
+  "devDependencies": {
+    "chai": "^3.5.0",
+    "standard": "^6.0.5",
+    "tap": "^5.2.0"
+  },
+  "homepage": "https://github.com/yargs/require-main-filename#readme",
+  "keywords": [
+    "require",
+    "shim",
+    "iisnode"
+  ],
+  "license": "ISC",
+  "main": "index.js",
+  "name": "require-main-filename",
+  "repository": {
+    "type": "git",
+    "url": "git+ssh://git@github.com/yargs/require-main-filename.git"
+  },
+  "scripts": {
+    "pretest": "standard",
+    "test": "tap --coverage test.js"
+  },
+  "version": "1.0.1"
+}
diff --git a/helloworld/node_modules/require-main-filename/test.js b/helloworld/node_modules/require-main-filename/test.js
new file mode 100755
index 0000000..d89e7dc
--- /dev/null
+++ b/helloworld/node_modules/require-main-filename/test.js
@@ -0,0 +1,36 @@
+/* global describe, it */
+
+var requireMainFilename = require('./')
+
+require('tap').mochaGlobals()
+require('chai').should()
+
+describe('require-main-filename', function () {
+  it('returns require.main.filename in normal circumstances', function () {
+    requireMainFilename().should.match(/test\.js/)
+  })
+
+  it('should use children[0].filename when running on iisnode', function () {
+    var main = {
+      filename: 'D:\\Program Files (x86)\\iisnode\\interceptor.js',
+      children: [ {filename: 'D:\\home\\site\\wwwroot\\server.js'} ]
+    }
+    requireMainFilename({
+      main: main
+    }).should.match(/server\.js/)
+  })
+
+  it('should not use children[0] if no children exist', function () {
+    var main = {
+      filename: 'D:\\Program Files (x86)\\iisnode\\interceptor.js',
+      children: []
+    }
+    requireMainFilename({
+      main: main
+    }).should.match(/interceptor\.js/)
+  })
+
+  it('should default to process.cwd() if require.main is undefined', function () {
+    requireMainFilename({}).should.match(/require-main-filename/)
+  })
+})
diff --git a/helloworld/node_modules/resolve/CHANGELOG.md b/helloworld/node_modules/resolve/CHANGELOG.md
new file mode 100755
index 0000000..832ee02
--- /dev/null
+++ b/helloworld/node_modules/resolve/CHANGELOG.md
@@ -0,0 +1,629 @@
+### Changelog
+
+All notable changes to this project will be documented in this file. Dates are displayed in UTC.
+
+#### [Unreleased](https://github.com/browserify/resolve/compare/v1.9.0...HEAD)
+
+- [Fix] `sync`/`async`: when package.json `main` is not a string, throw an error ([`#178`][])
+- [Tests] up to `v11.6`, `v10.15`, `v8.15`, `v6.16`	(([`083e78c`][])
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape`	(([`29a4994`][])
+- [Tests] add an additional test	(([`2c67936`][])
+
+[`083e78c`]: https://github.com/browserify/resolve/commit/083e78c1ae5c1708b7d41c9ad7c608caffeddcbf
+[`29a4994`]: https://github.com/browserify/resolve/commit/29a499418d54b5befe9deef1bc7c38a9174cfbd8
+[`2c67936`]: https://github.com/browserify/resolve/commit/2c679363e852f7a0d570593527ea7038f0cd2c19
+
+#### [v1.9.0](https://github.com/browserify/resolve/compare/v1.8.1...v1.9.0) - 17 December 2018
+
+- [Fix] `sync`/`async`: fix `preserveSymlinks` option ([`#177`][])
+- [Fix] `sync`/`async`: when package.json `main` is not a string, throw an error ([`#178`][])
+- [Refactor] `node-modules-paths`: Change `paths` function option to receive a thunk for node modules resolution paths	(([`d652f01`][])
+- [Tests] up to `node` `v11.4`, `v10.14`, `v8.14`, `v6.15`	(([`2b4f3a8`][])
+- [New] `async`/`sync`/`node-modules-paths`: Adds support for “paths” being a function	(([`7112873`][])
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `object-keys`, `safe-publish-latest`, `tape`	(([`5542700`][])
+- [New] Implements a "normalize-options" pseudo-hook	(([`f3961df`][])
+- [Tests] better failure messages	(([`f839d20`][])
+- [Deps] update `path-parse`	(([`1018c0e`][])
+
+[`d652f01`]: https://github.com/browserify/resolve/commit/d652f018b2561f4863ffcd0f3ecdb0dfe65ee223
+[`2b4f3a8`]: https://github.com/browserify/resolve/commit/2b4f3a898a3943e45cdff539b542c4ebee2b608a
+[`7112873`]: https://github.com/browserify/resolve/commit/711287339aad544788a4b8b5335221cea645572c
+[`5542700`]: https://github.com/browserify/resolve/commit/554270035e1997ae34865500c629888249baa304
+[`f3961df`]: https://github.com/browserify/resolve/commit/f3961dfcb7b2993d935c255e65309e7028a88b8d
+[`f839d20`]: https://github.com/browserify/resolve/commit/f839d20ab16ef814214d80183452d02379cbbf15
+[`1018c0e`]: https://github.com/browserify/resolve/commit/1018c0e49851bfb62176d8adbc94125ae85cd158
+
+#### [v1.8.1](https://github.com/browserify/resolve/compare/v1.8.0...v1.8.1) - 17 June 2018
+
+- [Docs] clean up readme code	(([`f5394d8`][])
+- [Fix] resolution when `filename` option is passed	(([`9c370c9`][])
+- [Tests] up to `node` `v10.4`	(([`3a64219`][])
+- [Tests] improve output of symlink tests that fail on Mac	(([`6f771b2`][])
+
+[`f5394d8`]: https://github.com/browserify/resolve/commit/f5394d801350ff32be08dfc5ca37bcb677b4c08b
+[`9c370c9`]: https://github.com/browserify/resolve/commit/9c370c9848eaecb36fb8e0b004930e2dd49e1e71
+[`3a64219`]: https://github.com/browserify/resolve/commit/3a64219a7385d5d51f3d4ff7b3de0ce749d6cf09
+[`6f771b2`]: https://github.com/browserify/resolve/commit/6f771b215b4f40b0ba0009ef564bde85212e79eb
+
+#### [v1.8.0](https://github.com/browserify/resolve/compare/v1.7.1...v1.8.0) - 15 June 2018
+
+- [New] include filename in error message ([`#162`][])
+- [Tests] up to `node` `v10.1`, `v9.11`, `v8.11`, `v6.14`, `4.9`	(([`ad16af2`][])
+- Fix eslint problems and update count of tests	(([`def5931`][])
+- [New] add fs/promises to the list of core modules	(([`756419a`][])
+- [New] core: add `trace_events`, `v8/tools/arguments`	(([`bae0338`][])
+- [Fix] core: `_tls_legacy` is removed in node 10	(([`4225ac5`][])
+
+[`#162`]: https://github.com/browserify/resolve/pull/162
+[`ad16af2`]: https://github.com/browserify/resolve/commit/ad16af2f4f6eb1dc964f5b119f6d94bd64b2607a
+[`def5931`]: https://github.com/browserify/resolve/commit/def59317704d787adcddc9695b923e65c6bf5232
+[`756419a`]: https://github.com/browserify/resolve/commit/756419a94432fd753a62f5a58b797776efb543f9
+[`bae0338`]: https://github.com/browserify/resolve/commit/bae033824c82153ccb4f32abdd0e70ca677968bc
+[`4225ac5`]: https://github.com/browserify/resolve/commit/4225ac5f4b90d26db664ed32f5b08416fea69b86
+
+#### [v1.7.1](https://github.com/browserify/resolve/compare/v1.7.0...v1.7.1) - 12 April 2018
+
+- [Fix] revert proper but unintended breaking change in sync packageFilter ([`#157`][])
+
+#### [v1.7.0](https://github.com/browserify/resolve/compare/v1.6.0...v1.7.0) - 7 April 2018
+
+- [Fix] Make loadAsFileSync() work the same as async loadAsFile() ([`#146`][])
+- [Tests] add more pathfilter tests	(([`c3621a3`][])
+- [Tests] add some tests for browser field	(([`13fb572`][])
+- [Refactor] cache default isFile functions at module level	(([`fa6e6f5`][])
+- [Docs] fix default “isFile” implementations	(([`0f29c93`][])
+- [Tests] add some tests for a non-directory basedir	(([`0c18e40`][])
+- [Refactor] use "basedir" instead of "y", because meaningful variable names	(([`876b0b0`][])
+- [Docs] fix options formatting	(([`23df5f5`][])
+- Minor cleanup	(([`c449d48`][])
+- [Fix] support `opts.package` in non-relative lookups	(([`c8a2052`][])
+- [Tests] work around npm SSL issue	(([`04cb0bb`][])
+- [Tests] add node 8 and 9 to appveyor	(([`7cbd17a`][])
+- [Tests] work around npm SSL issue	(([`4b10996`][])
+
+[`#146`]: https://github.com/browserify/resolve/pull/146
+[`c3621a3`]: https://github.com/browserify/resolve/commit/c3621a35675b275b2b241dd367459ed7afe1c22a
+[`13fb572`]: https://github.com/browserify/resolve/commit/13fb572337623622d06450696af6c15b68be26c3
+[`fa6e6f5`]: https://github.com/browserify/resolve/commit/fa6e6f5a2d34377f6973701733177a280adf0511
+[`0f29c93`]: https://github.com/browserify/resolve/commit/0f29c93f0c74fc4e52ec6ed6678ce0fec6347e2d
+[`0c18e40`]: https://github.com/browserify/resolve/commit/0c18e40e4929ba2c9426a77079c153c43e50a025
+[`876b0b0`]: https://github.com/browserify/resolve/commit/876b0b08da9fe44d81681d0c815900485536be9e
+[`23df5f5`]: https://github.com/browserify/resolve/commit/23df5f526823e27e33b01333016b7f58b4f63b6f
+[`c449d48`]: https://github.com/browserify/resolve/commit/c449d4809cf8461a3d54e458780902b95119a969
+[`c8a2052`]: https://github.com/browserify/resolve/commit/c8a20524c7d08671c22903e70b952575b0502f7b
+[`04cb0bb`]: https://github.com/browserify/resolve/commit/04cb0bb94628e560bfa4163e73637d3803591714
+[`7cbd17a`]: https://github.com/browserify/resolve/commit/7cbd17ae270f9ec24ef05779c3a5e9da3e75c598
+[`4b10996`]: https://github.com/browserify/resolve/commit/4b1099668477e28117c34f9db3509ff096a49190
+
+#### [v1.6.0](https://github.com/browserify/resolve/compare/v1.5.0...v1.6.0) - 20 March 2018
+
+- [New] add `async_hooks` core module, added in node 8 ([`#144`][])
+- [New] add many missing core modules.	(([`88c0778`][])
+- Made loadAsFileSync() work the same as async loadAsFile().	(([`dc23387`][])
+- [Tests] up to `v9.8`, `v8.10`, `v6.13`	(([`315d729`][])
+- [Tests] up to `node` `v9.3`, `v8.8`, `v6.12`; pin included builds to LTS	(([`5091aa2`][])
+- [Tests] add a failing test	(([`90b1192`][])
+- [Dev Deps] update `eslint`, `tape`	(([`2acf953`][])
+- [Tests] restore node 0.6	(([`2764758`][])
+- [Dev Deps] update `eslint`	(([`699a54e`][])
+- [Dev Deps] update `eslint`	(([`2674fad`][])
+
+[`88c0778`]: https://github.com/browserify/resolve/commit/88c0778be359caaeb4ca74b24a7b5f7903bc39e8
+[`dc23387`]: https://github.com/browserify/resolve/commit/dc23387adb93f497d67def7ee99fae48e5958fb3
+[`315d729`]: https://github.com/browserify/resolve/commit/315d729afe7074ffae5d6ca6509a73d747985d45
+[`5091aa2`]: https://github.com/browserify/resolve/commit/5091aa2c076b67ff762937401e81da66ef7988ca
+[`90b1192`]: https://github.com/browserify/resolve/commit/90b11921181c2783209e9aa31f1e20d98c11ed17
+[`2acf953`]: https://github.com/browserify/resolve/commit/2acf953ce2a94b38528372b5f8848ac95a2aabe5
+[`2764758`]: https://github.com/browserify/resolve/commit/2764758aae576aef98f41af5d46f76ada3523012
+[`699a54e`]: https://github.com/browserify/resolve/commit/699a54e91222dc8b3e1f0af8e9859c734d99d50a
+[`2674fad`]: https://github.com/browserify/resolve/commit/2674fadcfcf2b253fdcf5e9d8564fd2b23b0b57c
+
+#### [v1.5.0](https://github.com/browserify/resolve/compare/v1.4.0...v1.5.0) - 24 October 2017
+
+- [New] node v8.8+ supports `http2` ([`#139`][])
+- [Fix] fix broken core tests; change core.json to be an object instead of an array; fix results	(([`b826f30`][])
+- [Tests] up to `v8.4`; node 0.6 is failing due to travis-ci changes; allow it to fail for now.	(([`e9d3a24`][])
+- [Tests] up to `node` `8.7`; use `nvm install-latest-npm` so new npm doesn’t break old node	(([`d0de222`][])
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape`	(([`76f28a3`][])
+- [Tests] on `node` `v8.8`	(([`e0c5d51`][])
+- [Docs] update repo URL	(([`3412f98`][])
+- [New] add `perf_hooks`, added in node v8.5	(([`e66117d`][])
+- [Dev Deps] update `eslint`	(([`5bfb072`][])
+
+[`b826f30`]: https://github.com/browserify/resolve/commit/b826f3007dc8903b95e39984f93c68bb5e4c85b9
+[`e9d3a24`]: https://github.com/browserify/resolve/commit/e9d3a24ae0a4d8e3eefc6431c918c23f7c8fc6d3
+[`d0de222`]: https://github.com/browserify/resolve/commit/d0de222e4b55b67224ddec0421ee66ce8cb5ee8d
+[`76f28a3`]: https://github.com/browserify/resolve/commit/76f28a3d275a63b0511449d28900ab5749f27fa5
+[`e0c5d51`]: https://github.com/browserify/resolve/commit/e0c5d518abfaadc4107ca8f3f8c30caf46490444
+[`3412f98`]: https://github.com/browserify/resolve/commit/3412f984a03a345b9a5ef1f0642a0308d676a2c2
+[`e66117d`]: https://github.com/browserify/resolve/commit/e66117df49d9f967b46fde633770307c9d5a7066
+[`5bfb072`]: https://github.com/browserify/resolve/commit/5bfb072f152c77c8247f4c06c1efa9246bbdddb0
+
+#### [v1.4.0](https://github.com/browserify/resolve/compare/v1.3.3...v1.4.0) - 26 July 2017
+
+- [New]: add `preserveSymlinks` option ([`#130`][])
+- [Fix] `sync`: fix when package.json main = ‘.’ or main = ‘./‘ ([`#125`][])
+- [Tests] up to `node` `v8.2`, `v7.10`, `v6.11`; npm 4.6+ breaks on node < 4	(([`41a3604`][])
+- [Tests] fix 0.6 and linting	(([`703517b`][])
+- Only apps should have lockfiles	(([`11fb3d8`][])
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape`	(([`bc2f7bf`][])
+
+[`41a3604`]: https://github.com/browserify/resolve/commit/41a3604f6408dbe9693febf895251db924c87a8f
+[`703517b`]: https://github.com/browserify/resolve/commit/703517b78e7e0f8093a79c0a7a413a708ac82d06
+[`11fb3d8`]: https://github.com/browserify/resolve/commit/11fb3d85bb107a24476bd8d764ba25b3c60c184a
+[`bc2f7bf`]: https://github.com/browserify/resolve/commit/bc2f7bf29d172fa54d66cf909fb47a858f7765aa
+
+#### [v1.3.3](https://github.com/browserify/resolve/compare/v1.3.2...v1.3.3) - 20 April 2017
+
+- [Fix] error code MODULE_NOT_FOUND instead of ENOTDIR ([`#121`][])
+- [Tests] [eslint] add `npm run lint`	(([`3677928`][])
+- [Tests] up to `node` `v7.7`, `v6.10`, `v4.8`; comment out OSX builds since they block linux builds.	(([`1d3883c`][])
+- [Fix] correctly resolve dir paths when file with the same name exists	(([`a983d38`][])
+- [Tests] up to `node` `v7.9`	(([`0da055c`][])
+- [Tests] improve failure scenarios.	(([`1de578f`][])
+- [Fix] `sync`: ensure that the path is a string, explicitly.	(([`b7ba83d`][])
+- [Dev Deps] update `eslint`	(([`452fdf9`][])
+- [Tests] node 0.6 can’t support an npm that understands scoped packages	(([`26369cf`][])
+
+[`3677928`]: https://github.com/browserify/resolve/commit/36779282881ec4abce32b2c9b7f7b10bcd09d953
+[`1d3883c`]: https://github.com/browserify/resolve/commit/1d3883c40d55242d7dfeafa43fa782dc6f4ab4a6
+[`a983d38`]: https://github.com/browserify/resolve/commit/a983d38c47ea26e57e0824f22929985ecb24faca
+[`0da055c`]: https://github.com/browserify/resolve/commit/0da055cc75bebd7e0044cd4184e7c5386a7bd7de
+[`1de578f`]: https://github.com/browserify/resolve/commit/1de578f2879f83ba94789041420fd3d3b929127e
+[`b7ba83d`]: https://github.com/browserify/resolve/commit/b7ba83d43519c3c77af823ef1badd7f452d8b8e3
+[`452fdf9`]: https://github.com/browserify/resolve/commit/452fdf981330f96d7fef88805b24e40ea24a89e1
+[`26369cf`]: https://github.com/browserify/resolve/commit/26369cfe6ce4eae7404f3c003c88618f098d6814
+
+#### [v1.3.2](https://github.com/browserify/resolve/compare/v1.2.1...v1.3.2) - 26 February 2017
+
+- Fix prepublish script.	(([`1aa1d9d`][])
+
+[`1aa1d9d`]: https://github.com/browserify/resolve/commit/1aa1d9d9adc60691431efbde8d915c143cd54916
+
+#### [v1.3.1](https://github.com/browserify/resolve/compare/v1.3.0...v1.3.1) - 24 February 2017
+
+- Revert "[New] add searched extensions to error messages"	(([`68a081d`][])
+
+[`68a081d`]: https://github.com/browserify/resolve/commit/68a081d1c7ff6e0fb58aeff4b6ac06aada7812c4
+
+#### [v1.3.0](https://github.com/browserify/resolve/compare/v1.2.0...v1.3.0) - 24 February 2017
+
+#### [v1.2.1](https://github.com/browserify/resolve/compare/v1.3.1...v1.2.1) - 26 February 2017
+
+- [Fix] for browserify compat, do not assume `process.versions.node` exists. ([`#120`][])
+- [Fix] for browserify compat, do not assume `process.versions.node` exists. ([`#120`][])
+
+#### [v1.2.0](https://github.com/browserify/resolve/compare/v1.1.7...v1.2.0) - 13 December 2016
+
+- [Fix] `resolve.sync` should re-throw non `ENOENT errors. ([`#79`][])
+- [New] add missing core modules, and determine them dynamically by node version. ([`#100`][][`#110`][][`#111`][][`#112`][])
+- [Tests] test on every minor version of node. ([`#109`][][`#75`][][`#74`][][`#70`][])
+- code style: tabs → spaces	(([`0ab33b2`][])
+- [Dev Deps] add `safe-publish-latest`	(([`83c25dd`][])
+- [Fix] Create error outside process.nextTick	(([`3fa5f02`][])
+- readme: update API docs link for require.resolve()	(([`7e98547`][])
+- [Dev Deps] update `tape`	(([`764f3a2`][])
+- gitignore node_modules	(([`3e8a8da`][])
+
+[`0ab33b2`]: https://github.com/browserify/resolve/commit/0ab33b29b814e030021ff2df391e60a1c52dcc46
+[`83c25dd`]: https://github.com/browserify/resolve/commit/83c25dde8aa5a663bc3863d946fdc62fab5fd080
+[`3fa5f02`]: https://github.com/browserify/resolve/commit/3fa5f02f2ace0683fbd42196619c4e2bbd9eef60
+[`7e98547`]: https://github.com/browserify/resolve/commit/7e98547319f1dada4f26d7a24f3b92a08f85c56b
+[`764f3a2`]: https://github.com/browserify/resolve/commit/764f3a231c26c370c4e6b94f0bb10166c20551b7
+[`3e8a8da`]: https://github.com/browserify/resolve/commit/3e8a8da3c9d545e00e15f5bed24623eb134b2221
+
+#### [v1.1.7](https://github.com/browserify/resolve/compare/v1.1.6...v1.1.7) - 24 January 2016
+
+- (typo) Change againt to against ([`#83`][])
+- Fix node_modules paths on Windows	(([`35b2b64`][])
+
+[`#83`]: https://github.com/browserify/resolve/pull/83
+[`35b2b64`]: https://github.com/browserify/resolve/commit/35b2b642d91e9b81e7cc26b6fd19912e18901d55
+
+#### [v1.1.6](https://github.com/browserify/resolve/compare/v1.1.5...v1.1.6) - 15 March 2015
+
+- Use path.dirname to walk up looking for a package.json ([`#76`][])
+- add back pkg assertions to pick up the root package	(([`4c25e45`][])
+
+[`4c25e45`]: https://github.com/browserify/resolve/commit/4c25e45625fea7980463fc107fc843aab7e0d993
+
+#### [v1.1.5](https://github.com/browserify/resolve/compare/v1.1.4...v1.1.5) - 21 February 2015
+
+- another test, not quite the failing case	(([`612cac2`][])
+- fix for the failing case	(([`503c746`][])
+
+[`612cac2`]: https://github.com/browserify/resolve/commit/612cac2beac41fb13b7b12a9dfdb4207391260c1
+[`503c746`]: https://github.com/browserify/resolve/commit/503c746a6e64d50f2c9b18b4476ffcfed49947f2
+
+#### [v1.1.4](https://github.com/browserify/resolve/compare/v1.1.3...v1.1.4) - 20 February 2015
+
+- finally seems to fully handle browser field from outside foo/bar resolution	(([`5b737d5`][])
+- flatter nodeModules function	(([`5ebb39a`][])
+
+[`5b737d5`]: https://github.com/browserify/resolve/commit/5b737d58b38ce891ef3f06d600d0562dbbc8539c
+[`5ebb39a`]: https://github.com/browserify/resolve/commit/5ebb39a19b62c052ff6201600c3d2fffb3f5fdcb
+
+#### [v1.1.3](https://github.com/browserify/resolve/compare/v1.1.2...v1.1.3) - 17 February 2015
+
+- re-implemented pathfilter feature nearly passes the test	(([`60ff554`][])
+- another precedence test	(([`98d22e0`][])
+- move pathfilter test to its own file	(([`90826f5`][])
+- path logic fix that seems to handle all the cases across this package and browserify	(([`70146a5`][])
+- tape everywhere	(([`47bbfcd`][])
+- move pathfilter files into their own dir	(([`7f0a3f1`][])
+- failing precedence test	(([`73e958e`][])
+- nearly nearly working	(([`e7bffbf`][])
+- packageFilter should have been giving the pkgfile as an argument, fixed	(([`70b71e7`][])
+- this fixes the directory precedence problem	(([`caca9f9`][])
+- disable faulty basedir test except on windows for now	(([`3be4b79`][])
+- passes pathfilter test	(([`644f814`][])
+- fix node_path test, was clearly wrong for some reason	(([`9aa36e7`][])
+
+[`60ff554`]: https://github.com/browserify/resolve/commit/60ff5545ec3cd15367c89c08cf3f139fa9c23796
+[`98d22e0`]: https://github.com/browserify/resolve/commit/98d22e0e21dd57fe1ab8d9573c1f63903c2b7321
+[`90826f5`]: https://github.com/browserify/resolve/commit/90826f575fe37cb3852de17e764b62e3754484b2
+[`70146a5`]: https://github.com/browserify/resolve/commit/70146a5ebc4d96438383ada02785d4e722c6f5d9
+[`47bbfcd`]: https://github.com/browserify/resolve/commit/47bbfcd9d9c8a68ce97fa37e0563930cee67093d
+[`7f0a3f1`]: https://github.com/browserify/resolve/commit/7f0a3f1545f4b53f1bdd099b67561f9516693325
+[`73e958e`]: https://github.com/browserify/resolve/commit/73e958e905eed000787f0596f81c212ca2cdb3b3
+[`e7bffbf`]: https://github.com/browserify/resolve/commit/e7bffbf1b39b6239732c0e7fb01eeb9dad605d15
+[`70b71e7`]: https://github.com/browserify/resolve/commit/70b71e7980b3235018a0f5ac0bd52b8393548beb
+[`caca9f9`]: https://github.com/browserify/resolve/commit/caca9f9c3576c85d8972d25012ea5d12aeaa50f4
+[`3be4b79`]: https://github.com/browserify/resolve/commit/3be4b796f1a9aadfb293b36c0c7f781ca9169f09
+[`644f814`]: https://github.com/browserify/resolve/commit/644f81478c892874f9829aa6cca36ca72474db00
+[`9aa36e7`]: https://github.com/browserify/resolve/commit/9aa36e77eca50e177498984fdef5d564903d3964
+
+#### [v1.1.2](https://github.com/browserify/resolve/compare/v1.1.0...v1.1.2) - 16 February 2015
+
+- Adding pathFilter docs ([`#67`][])
+- adding pathFilter docs	(([`44480ff`][])
+
+[`#67`]: https://github.com/browserify/resolve/pull/67
+[`44480ff`]: https://github.com/browserify/resolve/commit/44480ff041f791f32b80d212302180be210901a1
+
+#### [v1.1.0](https://github.com/browserify/resolve/compare/v1.0.0...v1.1.0) - 27 January 2015
+
+- Update docs re: input and cb args. ([`#65`][])
+- Update main README--change word order for clarity ([`#55`][])
+- attempts to find package.json data for deep references https://github.com/substack/node-resolve/issues/62	(([`caff2ba`][])
+- formatting	(([`b8d09e3`][])
+- Add failing test for parent filename in error msg.	(([`96d38c6`][])
+- split before computing the pivot to prevent abcnode_modulesxyz from matching	(([`10380e1`][])
+- Utilize opts.filename when available to ID parent.	(([`f6edcd9`][])
+
+[`#65`]: https://github.com/browserify/resolve/pull/65
+[`#55`]: https://github.com/browserify/resolve/pull/55
+[`caff2ba`]: https://github.com/browserify/resolve/commit/caff2ba60dc5d85eaded388dc6025afd05ba183b
+[`b8d09e3`]: https://github.com/browserify/resolve/commit/b8d09e3a2d679f6b61515d49eca3f6d8d0d2ac7f
+[`96d38c6`]: https://github.com/browserify/resolve/commit/96d38c6aaa575d12781c28b34243b4939359a335
+[`10380e1`]: https://github.com/browserify/resolve/commit/10380e16d3cf03f25941c3f1545ef73ed11bc1e1
+[`f6edcd9`]: https://github.com/browserify/resolve/commit/f6edcd95ad5d27bfbdee0fa51951aa3d45d77cba
+
+### [v1.0.0](https://github.com/browserify/resolve/compare/v0.7.4...v1.0.0) - 11 August 2014
+
+- reformat package.json	(([`695bbc1`][])
+
+[`695bbc1`]: https://github.com/browserify/resolve/commit/695bbc1d9eeb35339b4a01e141c6f6e1dff3a6e3
+
+#### [v0.7.4](https://github.com/browserify/resolve/compare/v0.7.3...v0.7.4) - 25 July 2014
+
+- merged	(([`5cae82f`][])
+
+[`5cae82f`]: https://github.com/browserify/resolve/commit/5cae82fb22cb64d5b72f703c787dc0fd418ed412
+
+#### [v0.7.3](https://github.com/browserify/resolve/compare/v0.7.2...v0.7.3) - 25 July 2014
+
+- cb(err) for non-string args	(([`965c70b`][])
+
+[`965c70b`]: https://github.com/browserify/resolve/commit/965c70b27ff796fc0ac3dba186d95b61d82446df
+
+#### [v0.7.2](https://github.com/browserify/resolve/compare/v0.7.1...v0.7.2) - 25 July 2014
+
+- failing dotdot test	(([`3ee0f0e`][])
+- fixes for dotdot tests	(([`a67f230`][])
+- failing sync dotdot test	(([`55515e7`][])
+
+[`3ee0f0e`]: https://github.com/browserify/resolve/commit/3ee0f0eb97971d246a4a3f183374f60938f1ca8a
+[`a67f230`]: https://github.com/browserify/resolve/commit/a67f230133050568ca14a04c0d36aaf6bf14fa89
+[`55515e7`]: https://github.com/browserify/resolve/commit/55515e7f816571fb9d71fdd6d0f012185b2eeefb
+
+#### [v0.7.1](https://github.com/browserify/resolve/compare/v0.7.0...v0.7.1) - 9 June 2014
+
+- [Fix] `node-modules-paths`: `opts` should be optional, and `opts.paths` should not be concatenated when omitted. ([`#96`][])
+- [Refactor] consistent spacing and quotes; run some basic linting manually.	(([`f63faaf`][])
+- [Tests] use `path.join` more often to normalize paths across OS’s.	(([`8280c53`][])
+- [Tests] use `path` methods to make tests pass on both linux and Windows.	(([`af9a885`][])
+- [Tests] make matrix more efficient	(([`7f0ce87`][])
+- [Tests] fix indentation, manual linting.	(([`6984dcb`][])
+- [Tests] [Refactor] refactor `node-modules-paths` and add tests.	(([`58b99a3`][])
+- [Tests] add `appveyor`	(([`caffe35`][])
+- [new] Add err.code = 'MODULE_NOT_FOUND'	(([`c622aef`][])
+- [New] add searched extensions to error messages	(([`1260d9d`][])
+- node-modules-paths: absolutize the `start` path	(([`9d6b7af`][])
+- [Refactor] `async`: remove unnecessary slashes, since `path.join` adds them.	(([`dd50615`][])
+- [Tests] ensure node_path test is independent of the `tap` module’s “main”	(([`ddca9ed`][])
+
+[`f63faaf`]: https://github.com/browserify/resolve/commit/f63faaf9df5dbd8da388c674de0b14e3286e5e91
+[`8280c53`]: https://github.com/browserify/resolve/commit/8280c53eae6b612f586e133052ed2b2a56ae6649
+[`af9a885`]: https://github.com/browserify/resolve/commit/af9a8858a618ab64dd4bb311ef1be37822ade2b7
+[`7f0ce87`]: https://github.com/browserify/resolve/commit/7f0ce871b6d2b5cb2082b04cd72ddd4055cb7a05
+[`6984dcb`]: https://github.com/browserify/resolve/commit/6984dcb1407fec6af46f744ad2c63f502645bdd6
+[`58b99a3`]: https://github.com/browserify/resolve/commit/58b99a36f882d7ee65df725224f204abd27379db
+[`caffe35`]: https://github.com/browserify/resolve/commit/caffe358566bb3c2f9b4cbd8c0f910debfb6df3b
+[`c622aef`]: https://github.com/browserify/resolve/commit/c622aefeb286e479d536601e30bb828e69f86ec3
+[`1260d9d`]: https://github.com/browserify/resolve/commit/1260d9d1e2f55efb514540db9aa1b3d679f9db10
+[`9d6b7af`]: https://github.com/browserify/resolve/commit/9d6b7af28c054676d6ea8a5037353ed750ea13bb
+[`dd50615`]: https://github.com/browserify/resolve/commit/dd506158089f7d071d2a9f61cd4385365d177219
+[`ddca9ed`]: https://github.com/browserify/resolve/commit/ddca9ed7e1d980d5ec561450875cb09463effd5a
+
+#### [v0.7.0](https://github.com/browserify/resolve/compare/v0.6.3...v0.7.0) - 17 May 2014
+
+- array opts.moduleDirectory tests	(([`0f6d088`][])
+- opts.moduleDirectory string tests	(([`a15ffd6`][])
+- Support more than one directory in opts.moduleDirectory.	(([`4183463`][])
+- formatting	(([`b89f089`][])
+- Remove variable leftover from 325584a685	(([`12fa78c`][])
+
+[`0f6d088`]: https://github.com/browserify/resolve/commit/0f6d08801db6bc2044df8767226421172a2d9461
+[`a15ffd6`]: https://github.com/browserify/resolve/commit/a15ffd6c20772831c41146189c117ab0a0650e0b
+[`4183463`]: https://github.com/browserify/resolve/commit/41834633e84d76d86297968ba34c375f26fe4f08
+[`b89f089`]: https://github.com/browserify/resolve/commit/b89f08902e8551e07d66e81a3dc33840e24266c5
+[`12fa78c`]: https://github.com/browserify/resolve/commit/12fa78ce43c4363e1c9600b635d18cd295c6949f
+
+#### [v0.6.3](https://github.com/browserify/resolve/compare/v0.6.2...v0.6.3) - 16 April 2014
+
+- Fixed the case when main is specified as "." or "./" causing the resolve to infinite loop as documented at https://github.com/substack/node-browserify/issues/732.	(([`b11f273`][])
+
+[`b11f273`]: https://github.com/browserify/resolve/commit/b11f2739ad8c9730e1076271eff54850755e2ee1
+
+#### [v0.6.2](https://github.com/browserify/resolve/compare/v0.6.1...v0.6.2) - 21 March 2014
+
+- passing tests for paths	(([`4f56bb6`][])
+- faulty basedir does not always produce error properly in windows, because when the dirs are sliced down the final path has improper prefix, causing it to load relative to cwd	(([`110168a`][])
+
+[`4f56bb6`]: https://github.com/browserify/resolve/commit/4f56bb67fa45d35adfa6a0022cc77afbf8117234
+[`110168a`]: https://github.com/browserify/resolve/commit/110168adae1dfbedcb9a12086cacf0ce68cc67f6
+
+#### [v0.6.1](https://github.com/browserify/resolve/compare/v0.6.0...v0.6.1) - 27 November 2013
+
+- merged the context error patches	(([`8408e6e`][])
+
+[`8408e6e`]: https://github.com/browserify/resolve/commit/8408e6e8902b4bec8c859d606f53366e42058378
+
+#### [v0.6.0](https://github.com/browserify/resolve/compare/v0.5.1...v0.6.0) - 26 November 2013
+
+- fixes #25: resolve modules with the same name as node stdlib modules ([`#25`][])
+
+#### [v0.5.1](https://github.com/browserify/resolve/compare/v0.5.0...v0.5.1) - 22 September 2013
+
+- Separate duplicated nodeModulesPaths function	(([`325584a`][])
+- Fix prefix for windows azure	(([`b5ba043`][])
+
+[`325584a`]: https://github.com/browserify/resolve/commit/325584a685db8f42aae3d4876ffbe64069233601
+[`b5ba043`]: https://github.com/browserify/resolve/commit/b5ba0430b012d93367a4f87c304f1d4c8c22941c
+
+#### [v0.5.0](https://github.com/browserify/resolve/compare/v0.4.3...v0.5.0) - 2 September 2013
+
+- opts.modules => opts.moduleDirectory, documented	(([`c46593d`][])
+- modules folder name is configurable	(([`d65a422`][])
+
+[`c46593d`]: https://github.com/browserify/resolve/commit/c46593de74b256196d7ea12c85422698652cff10
+[`d65a422`]: https://github.com/browserify/resolve/commit/d65a42238101ea284ddafb788debdad0e5a59504
+
+#### [v0.4.3](https://github.com/browserify/resolve/compare/v0.4.2...v0.4.3) - 7 August 2013
+
+- Fix default basedir calculation	(([`cd7169b`][])
+- use getCaller() in both async and sync versions	(([`20f8945`][])
+
+[`cd7169b`]: https://github.com/browserify/resolve/commit/cd7169b204b9f474b6a924adf47564f33a469f07
+[`20f8945`]: https://github.com/browserify/resolve/commit/20f89456f7fc1d8e51b95ec1ab38b1ac154d9fc4
+
+#### [v0.4.2](https://github.com/browserify/resolve/compare/v0.4.1...v0.4.2) - 3 August 2013
+
+- Failing test case for pkg.main pointing to a directory.	(([`b57a75a`][])
+- Fix for failing test case where pkg.main points to directory.	(([`8c4078c`][])
+
+[`b57a75a`]: https://github.com/browserify/resolve/commit/b57a75aefc394ead20d54ed107741f1f7151b90f
+[`8c4078c`]: https://github.com/browserify/resolve/commit/8c4078c9dd45c6a92f1f409d70aaccc95be3bfc6
+
+#### [v0.4.1](https://github.com/browserify/resolve/compare/v0.4.0...v0.4.1) - 30 July 2013
+
+- adding tests to reproduce the problem	(([`ad3a477`][])
+- async resolve now falls back to 'index.js' if main field in package.json is incorrect	(([`62a5726`][])
+
+[`ad3a477`]: https://github.com/browserify/resolve/commit/ad3a4772ddd7187ff38cb56e00635b37a491e1fa
+[`62a5726`]: https://github.com/browserify/resolve/commit/62a572635f21bf1c28360ea5c2238be62736429b
+
+#### [v0.4.0](https://github.com/browserify/resolve/compare/v0.3.1...v0.4.0) - 9 June 2013
+
+- Implement async support for returning package a module was resolved from.	(([`b7b2806`][])
+- Document package option.	(([`7f84028`][])
+
+[`b7b2806`]: https://github.com/browserify/resolve/commit/b7b28069acb7c749a2053dbb0c8d606515954694
+[`7f84028`]: https://github.com/browserify/resolve/commit/7f8402881b725938cfaf1d4835ec2fb6cee4862d
+
+#### [v0.3.1](https://github.com/browserify/resolve/compare/v0.3.0...v0.3.1) - 29 March 2013
+
+- use isFIFO() instead to more narrowly target <() usage	(([`790cdf5`][])
+- check !isDirectory() instead of isFile() so that <(echo "beep") inline bash fds work	(([`c396065`][])
+
+[`790cdf5`]: https://github.com/browserify/resolve/commit/790cdf5ab7c92bb146e8ace05ba0b26c5f51ffb3
+[`c396065`]: https://github.com/browserify/resolve/commit/c3960650f1a1417e52238011e08a6da2b0d9fee4
+
+#### [v0.3.0](https://github.com/browserify/resolve/compare/v0.2.8...v0.3.0) - 19 February 2013
+
+- failing translated async test with parameterized readFile on account of 3-arg form	(([`7033bbb`][])
+- factor out .sync into lib/sync.js	(([`ba7038a`][])
+- updated the docs for async	(([`34a958e`][])
+- first async test passes	(([`e427ca8`][])
+- sync parity with async tests	(([`d1191a9`][])
+- stub out async	(([`f4b02e3`][])
+- factor out core into lib/	(([`a800954`][])
+- synchronous example	(([`3534992`][])
+- adapted async test	(([`c9111d2`][])
+- async example	(([`e1a9809`][])
+- fix for async parameterized readFile	(([`2d4e80e`][])
+- drop 0.4, add 0.8 in travis	(([`8a1ba59`][])
+
+[`7033bbb`]: https://github.com/browserify/resolve/commit/7033bbb6e21ecfd13476ca8de247580aa2f97e7c
+[`ba7038a`]: https://github.com/browserify/resolve/commit/ba7038a56d78212329b64287dfaf895b1a85cf2c
+[`34a958e`]: https://github.com/browserify/resolve/commit/34a958e84b7fc4cdccd7b71f9a116027a6f3a123
+[`e427ca8`]: https://github.com/browserify/resolve/commit/e427ca85b7e3b1d01b05f94783b76516b8594a03
+[`d1191a9`]: https://github.com/browserify/resolve/commit/d1191a9958581a040f4f18b3aecdd50714bffc7a
+[`f4b02e3`]: https://github.com/browserify/resolve/commit/f4b02e3bbf0c3b09f83cfb2b22b12b0f55afdf92
+[`a800954`]: https://github.com/browserify/resolve/commit/a80095482ef2d16425e6e12759c9735d89f7f50b
+[`3534992`]: https://github.com/browserify/resolve/commit/3534992946294811d20aaf9857ee453078cbe828
+[`c9111d2`]: https://github.com/browserify/resolve/commit/c9111d293ab35fb611d9c65ea2f88ae8cf853f8e
+[`e1a9809`]: https://github.com/browserify/resolve/commit/e1a98093094cded0a251ef36f4f2eb0adb280acb
+[`2d4e80e`]: https://github.com/browserify/resolve/commit/2d4e80e139d01176bf70132bc80caed946cd6682
+[`8a1ba59`]: https://github.com/browserify/resolve/commit/8a1ba593ab924995a45099e164cc7b769c44e9a0
+
+#### [v0.2.8](https://github.com/browserify/resolve/compare/v0.2.7...v0.2.8) - 18 February 2013
+
+- add the domain module to .core	(([`2979cde`][])
+
+[`2979cde`]: https://github.com/browserify/resolve/commit/2979cdea615fe724de62d88cb221c1d1824d0f10
+
+#### [v0.2.7](https://github.com/browserify/resolve/compare/v0.2.6...v0.2.7) - 18 February 2013
+
+#### [v0.2.6](https://github.com/browserify/resolve/compare/v0.2.5...v0.2.6) - 18 February 2013
+
+#### [v0.2.5](https://github.com/browserify/resolve/compare/v0.2.4...v0.2.5) - 18 February 2013
+
+#### [v0.2.4](https://github.com/browserify/resolve/compare/v0.2.3...v0.2.4) - 18 February 2013
+
+- resolve '../baz' correct	(([`46fe923`][])
+
+[`46fe923`]: https://github.com/browserify/resolve/commit/46fe923c20feeceac783e67cfa84d07222bc17fa
+
+#### [v0.2.3](https://github.com/browserify/resolve/compare/v0.2.2...v0.2.3) - 12 August 2012
+
+- license file	(([`a964396`][])
+- existsSync	(([`d1c1012`][])
+- pass dir to packageFilter	(([`3bea5b6`][])
+- pkg.main may be a directory	(([`3521c2f`][])
+- Prioritize parent tree in nodeModulesPathsSync before fallback options.paths/ NODE_PATH equivalent, in accordance with http://nodejs.org/docs/latest/api/all.html#all_loading_from_the_global_folders	(([`27fa227`][])
+
+[`a964396`]: https://github.com/browserify/resolve/commit/a9643965438eb4fcb068a5876b317f516199879a
+[`d1c1012`]: https://github.com/browserify/resolve/commit/d1c1012f14c50212ea49a9a1255c902f5ad6cb37
+[`3bea5b6`]: https://github.com/browserify/resolve/commit/3bea5b6475b39e7f4974d29c6fa1e8eb8b1589af
+[`3521c2f`]: https://github.com/browserify/resolve/commit/3521c2f2b93234e5a50dc47598554a76589d6d8c
+[`27fa227`]: https://github.com/browserify/resolve/commit/27fa22707e87738ddde61cb4ad90508cfe0d7755
+
+#### [v0.2.2](https://github.com/browserify/resolve/compare/v0.2.1...v0.2.2) - 30 April 2012
+
+- fix indentation	(([`98fc4a5`][])
+- Updated to work with windows, tested on Windows 7 64-bit and OS X 10.6	(([`a6646cc`][])
+- bump for windows fixes	(([`d67d595`][])
+
+[`98fc4a5`]: https://github.com/browserify/resolve/commit/98fc4a50b68456d497a862b9c4e4e0a79570c770
+[`a6646cc`]: https://github.com/browserify/resolve/commit/a6646ccceb1a6c411d5b9dfdc97106c80d8a0a09
+[`d67d595`]: https://github.com/browserify/resolve/commit/d67d5959e1be31eb67d5b62e7050bff318572373
+
+#### [v0.2.1](https://github.com/browserify/resolve/compare/v0.2.0...v0.2.1) - 12 April 2012
+
+- now using tap	(([`b625169`][])
+- using travis	(([`30cc7b3`][])
+- split on multiple slashes	(([`ebeafab`][])
+- fix splitting of paths to support windows as well	(([`5e7e24b`][])
+
+[`b625169`]: https://github.com/browserify/resolve/commit/b62516922eaaafe533806cd385017109ea057baa
+[`30cc7b3`]: https://github.com/browserify/resolve/commit/30cc7b3af9299a0e08f34c314015a1395ef16ea3
+[`ebeafab`]: https://github.com/browserify/resolve/commit/ebeafab4a43c6ac4df7a8a7ee578629f81b7b9e7
+[`5e7e24b`]: https://github.com/browserify/resolve/commit/5e7e24bf11c48f14385886d7dd3661f786cc109b
+
+#### [v0.2.0](https://github.com/browserify/resolve/compare/v0.1.3...v0.2.0) - 25 February 2012
+
+- updated the core list for 0.6.11	(([`12d4c16`][])
+
+[`12d4c16`]: https://github.com/browserify/resolve/commit/12d4c164ef99bd35c13b0f566feaa70bc3560082
+
+#### [v0.1.3](https://github.com/browserify/resolve/compare/v0.1.2...v0.1.3) - 14 December 2011
+
+- bump	(([`2dffd07`][])
+- Added readline to core modules 	(([`4ab55a2`][])
+
+[`2dffd07`]: https://github.com/browserify/resolve/commit/2dffd072ce65b4aae4974e934ca5b58ec741f598
+[`4ab55a2`]: https://github.com/browserify/resolve/commit/4ab55a2d4eb95be2399fe94fd5d33879271b5a9f
+
+#### [v0.1.2](https://github.com/browserify/resolve/compare/v0.1.1...v0.1.2) - 31 October 2011
+
+- Add opts.paths to list of node_modules directories	(([`7bb6ef4`][])
+- bump	(([`5e3fcc6`][])
+
+[`7bb6ef4`]: https://github.com/browserify/resolve/commit/7bb6ef4a1805523169f30b6ea38776796a714c3a
+[`5e3fcc6`]: https://github.com/browserify/resolve/commit/5e3fcc63cfec322779be5435820d3236e6d13dba
+
+#### [v0.1.1](https://github.com/browserify/resolve/compare/v0.1.0...v0.1.1) - 18 October 2011
+
+- bump for windows paths	(([`3fb86d0`][])
+- Added support for Windows-style paths.	(([`638951e`][])
+
+[`3fb86d0`]: https://github.com/browserify/resolve/commit/3fb86d07c77b09a7d6fa6d2a8b89432a070a6aa0
+[`638951e`]: https://github.com/browserify/resolve/commit/638951ed92fa4435d9752df30c3bcb9eb49573cd
+
+#### [v0.1.0](https://github.com/browserify/resolve/compare/v0.0.4...v0.1.0) - 3 October 2011
+
+- passing mock test	(([`030f0d3`][])
+- passing mock test with package.json	(([`d2b19c8`][])
+- isFile and readFileSync as parameters	(([`d30c22d`][])
+- doc updates and a minor bump for custom isFile and readFileSync params	(([`b0af4c3`][])
+
+[`030f0d3`]: https://github.com/browserify/resolve/commit/030f0d391e02558574bc673077fb1b4057f8358d
+[`d2b19c8`]: https://github.com/browserify/resolve/commit/d2b19c893b7f8c63154c5b5ff2c419ffdc8baa0c
+[`d30c22d`]: https://github.com/browserify/resolve/commit/d30c22d1e13b000016f2592d6d6f3489a2d29988
+[`b0af4c3`]: https://github.com/browserify/resolve/commit/b0af4c3ac1a51acf9995cb4e078bf5619f257952
+
+#### [v0.0.4](https://github.com/browserify/resolve/compare/v0.0.3...v0.0.4) - 21 June 2011
+
+- bump for packageFilter and a note in the docs	(([`9fbb632`][])
+- new packageFilter option	(([`c92c883`][])
+
+[`9fbb632`]: https://github.com/browserify/resolve/commit/9fbb632a5c0c38641ed7c10399306a56651e0789
+[`c92c883`]: https://github.com/browserify/resolve/commit/c92c883bed3e50dd8ed9a2e1d4b9fefc9f3ced64
+
+#### [v0.0.3](https://github.com/browserify/resolve/compare/v0.0.2...v0.0.3) - 20 June 2011
+
+- custom extensions now work	(([`502b6e9`][])
+- failing test for extensions	(([`ce56f56`][])
+- bump and a note in the docs for extensions	(([`2ad8287`][])
+- passing normalize test	(([`055c7ce`][])
+
+[`502b6e9`]: https://github.com/browserify/resolve/commit/502b6e9c8b9f258e5c943954467016e9c048fa0f
+[`ce56f56`]: https://github.com/browserify/resolve/commit/ce56f56b4e1a5c1df495a7bf061fb0242103b4d8
+[`2ad8287`]: https://github.com/browserify/resolve/commit/2ad8287bc8b34929c2074a739410d08955ccdea7
+[`055c7ce`]: https://github.com/browserify/resolve/commit/055c7cea391ff0ce9cd8c585e8244f553b62f6e7
+
+#### [v0.0.2](https://github.com/browserify/resolve/compare/v0.0.1...v0.0.2) - 19 June 2011
+
+- failing biz test for going up and down the path directory	(([`cf4f5a5`][])
+- don't stop on the first node_modules since that's going away in node anyhow, all tests pass again	(([`9049abf`][])
+
+[`cf4f5a5`]: https://github.com/browserify/resolve/commit/cf4f5a58d092124c517c55dd180559f5a444eb06
+[`9049abf`]: https://github.com/browserify/resolve/commit/9049abfb60cac49bb547b8ca02cc2617d406ff1a
+
+#### v0.0.1
+
+- implementation seems to work but no tests yet	(([`5218f01`][])
+- a package.json all up in this	(([`4084043`][])
+- new resolve.{core,isCore} with tests and documentation, bump to 0.0.1	(([`a9ef081`][])
+- failing foo test	(([`463b108`][])
+- readme before any code	(([`7885443`][])
+- opts.path => opts.basedir, more descriptive I think	(([`78010b1`][])
+- failing bar test	(([`c40c5c1`][])
+- passing baz test to check package.json resolution	(([`410635e`][])
+- a path.resolve() fixed the relative loads	(([`dfef4b6`][])
+- passing the bar test after taking out the dirname() around y	(([`eda2247`][])
+- trailing comma in the package.json	(([`2032753`][])
+
+[`5218f01`]: https://github.com/browserify/resolve/commit/5218f0106e78edce4cfb905d0ea4492ed3fd38af
+[`4084043`]: https://github.com/browserify/resolve/commit/40840435a621120db78126c1792df7fdd0570703
+[`a9ef081`]: https://github.com/browserify/resolve/commit/a9ef081a4897e9882bf6bc6b31457c53b8d0fc0d
+[`463b108`]: https://github.com/browserify/resolve/commit/463b108dd6e750196cba150348bd68397522c908
+[`7885443`]: https://github.com/browserify/resolve/commit/7885443d8a3dba7223b1bfca2d62cafc08a46436
+[`78010b1`]: https://github.com/browserify/resolve/commit/78010b1f91251447d1e74c6ac9cd0baebc6ddf60
+[`c40c5c1`]: https://github.com/browserify/resolve/commit/c40c5c14038acbe8bec91cf979d12382c2e6ddfe
+[`410635e`]: https://github.com/browserify/resolve/commit/410635ef6226c030f74c4475e73724a01a102896
+[`dfef4b6`]: https://github.com/browserify/resolve/commit/dfef4b6185d02259c119a10c8a938e1ab148b140
+[`eda2247`]: https://github.com/browserify/resolve/commit/eda22479bd47c5d0b2e8a88851d9ffabbea2329c
+[`2032753`]: https://github.com/browserify/resolve/commit/20327532053284676a269ec2441a87f16456fbf3
diff --git a/helloworld/node_modules/resolve/LICENSE b/helloworld/node_modules/resolve/LICENSE
new file mode 100755
index 0000000..ee27ba4
--- /dev/null
+++ b/helloworld/node_modules/resolve/LICENSE
@@ -0,0 +1,18 @@
+This software is released under the MIT license:
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/resolve/appveyor.yml b/helloworld/node_modules/resolve/appveyor.yml
new file mode 100755
index 0000000..cc73cc1
--- /dev/null
+++ b/helloworld/node_modules/resolve/appveyor.yml
@@ -0,0 +1,47 @@
+version: 1.0.{build}
+skip_branch_with_pr: true
+build: off
+
+environment:
+  matrix:
+    - nodejs_version: "9"
+    - nodejs_version: "8"
+    - nodejs_version: "7"
+    - nodejs_version: "6"
+    - nodejs_version: "5"
+    - nodejs_version: "4"
+    - nodejs_version: "3"
+    - nodejs_version: "2"
+    - nodejs_version: "1"
+    - nodejs_version: "0.12"
+    - nodejs_version: "0.10"
+    - nodejs_version: "0.8"
+    - nodejs_version: "0.6"
+matrix:
+  # fast_finish: true
+  allow_failures:
+    - nodejs_version: "0.8"
+    - nodejs_version: "0.6"
+
+platform:
+  - x86
+  - x64
+
+# Install scripts. (runs after repo cloning)
+install:
+ # Get the latest stable version of Node.js or io.js
+ - ps: Install-Product node $env:nodejs_version $env:platform
+ - IF %nodejs_version% EQU 0.6 npm config set strict-ssl false && npm -g install npm@1.3
+ - IF %nodejs_version% EQU 0.8 npm config set strict-ssl false && npm -g install npm@1.4.28 && npm install -g npm@4.5
+ - set PATH=%APPDATA%\npm;%PATH%
+ #- IF %nodejs_version% NEQ 0.6 AND %nodejs_version% NEQ 0.8 npm -g install npm
+ # install modules
+ - npm install
+
+# Post-install test scripts.
+test_script:
+ # Output useful info for debugging.
+ - node --version
+ - npm --version
+ # run tests
+ - npm run tests-only
diff --git a/helloworld/node_modules/resolve/changelog.hbs b/helloworld/node_modules/resolve/changelog.hbs
new file mode 100755
index 0000000..addd781
--- /dev/null
+++ b/helloworld/node_modules/resolve/changelog.hbs
@@ -0,0 +1,36 @@
+### Changelog
+
+All notable changes to this project will be documented in this file. Dates are displayed in UTC.
+{{#each releases}}
+
+  {{#if href}}
+    ###{{#unless major}}#{{/unless}} [{{title}}]({{href}}){{#if tag}} - {{niceDate}}{{/if}}
+  {{else}}
+    #### {{title}}
+  {{/if}}
+
+  {{#if summary}}
+    Summary:
+    {{summary}}
+  {{/if}}
+
+  {{#each fixes}}
+    - {{{commit.subject}}} ({{#each fixes}}{{#if href}}[`#{{id}}`][]{{/if}}{{/each}})
+  {{/each}}
+  {{#each merges}}
+    - {{{message}}}{{#if href}} ([`#{{id}}`][]){{/if}}
+  {{/each}}
+  {{#each commits}}
+    - {{#if breaking}}**Breaking change:** {{/if}}{{{subject}}}{{#if href}}	(([`{{shorthash}}`][]){{/if}}
+  {{/each}}
+
+  {{#each fixes}}
+{{#if href}}[`#{{id}}`]: {{href}}{{/if}}
+  {{/each}}
+  {{#each merges}}
+{{#if href}}[`#{{id}}`]: {{href}}{{/if}}
+  {{/each}}
+  {{#each commits}}
+{{#if href}}[`{{shorthash}}`]: {{href}}{{/if}}
+  {{/each}}
+{{/each}}
diff --git a/helloworld/node_modules/resolve/example/async.js b/helloworld/node_modules/resolve/example/async.js
new file mode 100755
index 0000000..20e65dc
--- /dev/null
+++ b/helloworld/node_modules/resolve/example/async.js
@@ -0,0 +1,5 @@
+var resolve = require('../');
+resolve('tap', { basedir: __dirname }, function (err, res) {
+    if (err) console.error(err);
+    else console.log(res);
+});
diff --git a/helloworld/node_modules/resolve/example/sync.js b/helloworld/node_modules/resolve/example/sync.js
new file mode 100755
index 0000000..54b2cc1
--- /dev/null
+++ b/helloworld/node_modules/resolve/example/sync.js
@@ -0,0 +1,3 @@
+var resolve = require('../');
+var res = resolve.sync('tap', { basedir: __dirname });
+console.log(res);
diff --git a/helloworld/node_modules/resolve/index.js b/helloworld/node_modules/resolve/index.js
new file mode 100755
index 0000000..eb6ba89
--- /dev/null
+++ b/helloworld/node_modules/resolve/index.js
@@ -0,0 +1,8 @@
+var core = require('./lib/core');
+var async = require('./lib/async');
+async.core = core;
+async.isCore = function isCore(x) { return core[x]; };
+async.sync = require('./lib/sync');
+
+exports = async;
+module.exports = async;
diff --git a/helloworld/node_modules/resolve/lib/async.js b/helloworld/node_modules/resolve/lib/async.js
new file mode 100755
index 0000000..54211cc
--- /dev/null
+++ b/helloworld/node_modules/resolve/lib/async.js
@@ -0,0 +1,229 @@
+var core = require('./core');
+var fs = require('fs');
+var path = require('path');
+var caller = require('./caller.js');
+var nodeModulesPaths = require('./node-modules-paths.js');
+var normalizeOptions = require('./normalize-options.js');
+
+var defaultIsFile = function isFile(file, cb) {
+    fs.stat(file, function (err, stat) {
+        if (!err) {
+            return cb(null, stat.isFile() || stat.isFIFO());
+        }
+        if (err.code === 'ENOENT' || err.code === 'ENOTDIR') return cb(null, false);
+        return cb(err);
+    });
+};
+
+module.exports = function resolve(x, options, callback) {
+    var cb = callback;
+    var opts = options;
+    if (typeof options === 'function') {
+        cb = opts;
+        opts = {};
+    }
+    if (typeof x !== 'string') {
+        var err = new TypeError('Path must be a string.');
+        return process.nextTick(function () {
+            cb(err);
+        });
+    }
+
+    opts = normalizeOptions(x, opts);
+
+    var isFile = opts.isFile || defaultIsFile;
+    var readFile = opts.readFile || fs.readFile;
+
+    var extensions = opts.extensions || ['.js'];
+    var basedir = opts.basedir || path.dirname(caller());
+    var parent = opts.filename || basedir;
+
+    opts.paths = opts.paths || [];
+
+    // ensure that `basedir` is an absolute path at this point, resolving against the process' current working directory
+    var absoluteStart = path.resolve(basedir);
+
+    if (opts.preserveSymlinks === false) {
+        fs.realpath(absoluteStart, function (realPathErr, realStart) {
+            if (realPathErr && realPathErr.code !== 'ENOENT') cb(err);
+            else init(realPathErr ? absoluteStart : realStart);
+        });
+    } else {
+        init(absoluteStart);
+    }
+
+    var res;
+    function init(basedir) {
+        if ((/^(?:\.\.?(?:\/|$)|\/|([A-Za-z]:)?[/\\])/).test(x)) {
+            res = path.resolve(basedir, x);
+            if (x === '..' || x.slice(-1) === '/') res += '/';
+            if ((/\/$/).test(x) && res === basedir) {
+                loadAsDirectory(res, opts.package, onfile);
+            } else loadAsFile(res, opts.package, onfile);
+        } else loadNodeModules(x, basedir, function (err, n, pkg) {
+            if (err) cb(err);
+            else if (n) cb(null, n, pkg);
+            else if (core[x]) return cb(null, x);
+            else {
+                var moduleError = new Error("Cannot find module '" + x + "' from '" + parent + "'");
+                moduleError.code = 'MODULE_NOT_FOUND';
+                cb(moduleError);
+            }
+        });
+    }
+
+    function onfile(err, m, pkg) {
+        if (err) cb(err);
+        else if (m) cb(null, m, pkg);
+        else loadAsDirectory(res, function (err, d, pkg) {
+            if (err) cb(err);
+            else if (d) cb(null, d, pkg);
+            else {
+                var moduleError = new Error("Cannot find module '" + x + "' from '" + parent + "'");
+                moduleError.code = 'MODULE_NOT_FOUND';
+                cb(moduleError);
+            }
+        });
+    }
+
+    function loadAsFile(x, thePackage, callback) {
+        var loadAsFilePackage = thePackage;
+        var cb = callback;
+        if (typeof loadAsFilePackage === 'function') {
+            cb = loadAsFilePackage;
+            loadAsFilePackage = undefined;
+        }
+
+        var exts = [''].concat(extensions);
+        load(exts, x, loadAsFilePackage);
+
+        function load(exts, x, loadPackage) {
+            if (exts.length === 0) return cb(null, undefined, loadPackage);
+            var file = x + exts[0];
+
+            var pkg = loadPackage;
+            if (pkg) onpkg(null, pkg);
+            else loadpkg(path.dirname(file), onpkg);
+
+            function onpkg(err, pkg_, dir) {
+                pkg = pkg_;
+                if (err) return cb(err);
+                if (dir && pkg && opts.pathFilter) {
+                    var rfile = path.relative(dir, file);
+                    var rel = rfile.slice(0, rfile.length - exts[0].length);
+                    var r = opts.pathFilter(pkg, x, rel);
+                    if (r) return load(
+                        [''].concat(extensions.slice()),
+                        path.resolve(dir, r),
+                        pkg
+                    );
+                }
+                isFile(file, onex);
+            }
+            function onex(err, ex) {
+                if (err) return cb(err);
+                if (ex) return cb(null, file, pkg);
+                load(exts.slice(1), x, pkg);
+            }
+        }
+    }
+
+    function loadpkg(dir, cb) {
+        if (dir === '' || dir === '/') return cb(null);
+        if (process.platform === 'win32' && (/^\w:[/\\]*$/).test(dir)) {
+            return cb(null);
+        }
+        if ((/[/\\]node_modules[/\\]*$/).test(dir)) return cb(null);
+
+        var pkgfile = path.join(dir, 'package.json');
+        isFile(pkgfile, function (err, ex) {
+            // on err, ex is false
+            if (!ex) return loadpkg(path.dirname(dir), cb);
+
+            readFile(pkgfile, function (err, body) {
+                if (err) cb(err);
+                try { var pkg = JSON.parse(body); } catch (jsonErr) {}
+
+                if (pkg && opts.packageFilter) {
+                    pkg = opts.packageFilter(pkg, pkgfile);
+                }
+                cb(null, pkg, dir);
+            });
+        });
+    }
+
+    function loadAsDirectory(x, loadAsDirectoryPackage, callback) {
+        var cb = callback;
+        var fpkg = loadAsDirectoryPackage;
+        if (typeof fpkg === 'function') {
+            cb = fpkg;
+            fpkg = opts.package;
+        }
+
+        var pkgfile = path.join(x, 'package.json');
+        isFile(pkgfile, function (err, ex) {
+            if (err) return cb(err);
+            if (!ex) return loadAsFile(path.join(x, 'index'), fpkg, cb);
+
+            readFile(pkgfile, function (err, body) {
+                if (err) return cb(err);
+                try {
+                    var pkg = JSON.parse(body);
+                } catch (jsonErr) {}
+
+                if (opts.packageFilter) {
+                    pkg = opts.packageFilter(pkg, pkgfile);
+                }
+
+                if (pkg.main) {
+                    if (typeof pkg.main !== 'string') {
+                        var mainError = new TypeError('package “' + pkg.name + '” `main` must be a string');
+                        mainError.code = 'INVALID_PACKAGE_MAIN';
+                        return cb(mainError);
+                    }
+                    if (pkg.main === '.' || pkg.main === './') {
+                        pkg.main = 'index';
+                    }
+                    loadAsFile(path.resolve(x, pkg.main), pkg, function (err, m, pkg) {
+                        if (err) return cb(err);
+                        if (m) return cb(null, m, pkg);
+                        if (!pkg) return loadAsFile(path.join(x, 'index'), pkg, cb);
+
+                        var dir = path.resolve(x, pkg.main);
+                        loadAsDirectory(dir, pkg, function (err, n, pkg) {
+                            if (err) return cb(err);
+                            if (n) return cb(null, n, pkg);
+                            loadAsFile(path.join(x, 'index'), pkg, cb);
+                        });
+                    });
+                    return;
+                }
+
+                loadAsFile(path.join(x, '/index'), pkg, cb);
+            });
+        });
+    }
+
+    function processDirs(cb, dirs) {
+        if (dirs.length === 0) return cb(null, undefined);
+        var dir = dirs[0];
+
+        var file = path.join(dir, x);
+        loadAsFile(file, opts.package, onfile);
+
+        function onfile(err, m, pkg) {
+            if (err) return cb(err);
+            if (m) return cb(null, m, pkg);
+            loadAsDirectory(path.join(dir, x), opts.package, ondir);
+        }
+
+        function ondir(err, n, pkg) {
+            if (err) return cb(err);
+            if (n) return cb(null, n, pkg);
+            processDirs(cb, dirs.slice(1));
+        }
+    }
+    function loadNodeModules(x, start, cb) {
+        processDirs(cb, nodeModulesPaths(start, opts, x));
+    }
+};
diff --git a/helloworld/node_modules/resolve/lib/caller.js b/helloworld/node_modules/resolve/lib/caller.js
new file mode 100755
index 0000000..b14a280
--- /dev/null
+++ b/helloworld/node_modules/resolve/lib/caller.js
@@ -0,0 +1,8 @@
+module.exports = function () {
+    // see https://code.google.com/p/v8/wiki/JavaScriptStackTraceApi
+    var origPrepareStackTrace = Error.prepareStackTrace;
+    Error.prepareStackTrace = function (_, stack) { return stack; };
+    var stack = (new Error()).stack;
+    Error.prepareStackTrace = origPrepareStackTrace;
+    return stack[2].getFileName();
+};
diff --git a/helloworld/node_modules/resolve/lib/core.js b/helloworld/node_modules/resolve/lib/core.js
new file mode 100755
index 0000000..0877650
--- /dev/null
+++ b/helloworld/node_modules/resolve/lib/core.js
@@ -0,0 +1,53 @@
+var current = (process.versions && process.versions.node && process.versions.node.split('.')) || [];
+
+function specifierIncluded(specifier) {
+    var parts = specifier.split(' ');
+    var op = parts.length > 1 ? parts[0] : '=';
+    var versionParts = (parts.length > 1 ? parts[1] : parts[0]).split('.');
+
+    for (var i = 0; i < 3; ++i) {
+        var cur = Number(current[i] || 0);
+        var ver = Number(versionParts[i] || 0);
+        if (cur === ver) {
+            continue; // eslint-disable-line no-restricted-syntax, no-continue
+        }
+        if (op === '<') {
+            return cur < ver;
+        } else if (op === '>=') {
+            return cur >= ver;
+        } else {
+            return false;
+        }
+    }
+    return op === '>=';
+}
+
+function matchesRange(range) {
+    var specifiers = range.split(/ ?&& ?/);
+    if (specifiers.length === 0) { return false; }
+    for (var i = 0; i < specifiers.length; ++i) {
+        if (!specifierIncluded(specifiers[i])) { return false; }
+    }
+    return true;
+}
+
+function versionIncluded(specifierValue) {
+    if (typeof specifierValue === 'boolean') { return specifierValue; }
+    if (specifierValue && typeof specifierValue === 'object') {
+        for (var i = 0; i < specifierValue.length; ++i) {
+            if (matchesRange(specifierValue[i])) { return true; }
+        }
+        return false;
+    }
+    return matchesRange(specifierValue);
+}
+
+var data = require('./core.json');
+
+var core = {};
+for (var mod in data) { // eslint-disable-line no-restricted-syntax
+    if (Object.prototype.hasOwnProperty.call(data, mod)) {
+        core[mod] = versionIncluded(data[mod]);
+    }
+}
+module.exports = core;
diff --git a/helloworld/node_modules/resolve/lib/core.json b/helloworld/node_modules/resolve/lib/core.json
new file mode 100755
index 0000000..1575db3
--- /dev/null
+++ b/helloworld/node_modules/resolve/lib/core.json
@@ -0,0 +1,73 @@
+{
+    "assert": true,
+    "async_hooks": ">= 8",
+    "buffer_ieee754": "< 0.9.7",
+    "buffer": true,
+    "child_process": true,
+    "cluster": true,
+    "console": true,
+    "constants": true,
+    "crypto": true,
+    "_debugger": "< 8",
+    "dgram": true,
+    "dns": true,
+    "domain": true,
+    "events": true,
+    "freelist": "< 6",
+    "fs": true,
+    "fs/promises": ">= 10 && < 10.1",
+    "_http_agent": ">= 0.11.1",
+    "_http_client": ">= 0.11.1",
+    "_http_common": ">= 0.11.1",
+    "_http_incoming": ">= 0.11.1",
+    "_http_outgoing": ">= 0.11.1",
+    "_http_server": ">= 0.11.1",
+    "http": true,
+    "http2": ">= 8.8",
+    "https": true,
+    "inspector": ">= 8.0.0",
+    "_linklist": "< 8",
+    "module": true,
+    "net": true,
+    "node-inspect/lib/_inspect": ">= 7.6.0",
+    "node-inspect/lib/internal/inspect_client": ">= 7.6.0",
+    "node-inspect/lib/internal/inspect_repl": ">= 7.6.0",
+    "os": true,
+    "path": true,
+    "perf_hooks": ">= 8.5",
+    "process": ">= 1",
+    "punycode": true,
+    "querystring": true,
+    "readline": true,
+    "repl": true,
+    "smalloc": ">= 0.11.5 && < 3",
+    "_stream_duplex": ">= 0.9.4",
+    "_stream_transform": ">= 0.9.4",
+    "_stream_wrap": ">= 1.4.1",
+    "_stream_passthrough": ">= 0.9.4",
+    "_stream_readable": ">= 0.9.4",
+    "_stream_writable": ">= 0.9.4",
+    "stream": true,
+    "string_decoder": true,
+    "sys": true,
+    "timers": true,
+    "_tls_common": ">= 0.11.13",
+    "_tls_legacy": ">= 0.11.3 && < 10",
+    "_tls_wrap": ">= 0.11.3",
+    "tls": true,
+    "trace_events": ">= 10",
+    "tty": true,
+    "url": true,
+    "util": true,
+    "v8/tools/arguments": ">= 10",
+    "v8/tools/codemap": [">= 4.4.0 && < 5", ">= 5.2.0"],
+    "v8/tools/consarray": [">= 4.4.0 && < 5", ">= 5.2.0"],
+    "v8/tools/csvparser": [">= 4.4.0 && < 5", ">= 5.2.0"],
+    "v8/tools/logreader": [">= 4.4.0 && < 5", ">= 5.2.0"],
+    "v8/tools/profile_view": [">= 4.4.0 && < 5", ">= 5.2.0"],
+    "v8/tools/splaytree": [">= 4.4.0 && < 5", ">= 5.2.0"],
+    "v8": ">= 1",
+    "vm": true,
+    "worker_threads": ">= 11.7",
+    "zlib": true
+}
diff --git a/helloworld/node_modules/resolve/lib/node-modules-paths.js b/helloworld/node_modules/resolve/lib/node-modules-paths.js
new file mode 100755
index 0000000..df50f48
--- /dev/null
+++ b/helloworld/node_modules/resolve/lib/node-modules-paths.js
@@ -0,0 +1,42 @@
+var path = require('path');
+var parse = path.parse || require('path-parse');
+
+var getNodeModulesDirs = function getNodeModulesDirs(absoluteStart, modules) {
+    var prefix = '/';
+    if ((/^([A-Za-z]:)/).test(absoluteStart)) {
+        prefix = '';
+    } else if ((/^\\\\/).test(absoluteStart)) {
+        prefix = '\\\\';
+    }
+
+    var paths = [absoluteStart];
+    var parsed = parse(absoluteStart);
+    while (parsed.dir !== paths[paths.length - 1]) {
+        paths.push(parsed.dir);
+        parsed = parse(parsed.dir);
+    }
+
+    return paths.reduce(function (dirs, aPath) {
+        return dirs.concat(modules.map(function (moduleDir) {
+            return path.join(prefix, aPath, moduleDir);
+        }));
+    }, []);
+};
+
+module.exports = function nodeModulesPaths(start, opts, request) {
+    var modules = opts && opts.moduleDirectory
+        ? [].concat(opts.moduleDirectory)
+        : ['node_modules'];
+
+    if (opts && typeof opts.paths === 'function') {
+        return opts.paths(
+            request,
+            start,
+            function () { return getNodeModulesDirs(start, modules); },
+            opts
+        );
+    }
+
+    var dirs = getNodeModulesDirs(start, modules);
+    return opts && opts.paths ? dirs.concat(opts.paths) : dirs;
+};
diff --git a/helloworld/node_modules/resolve/lib/normalize-options.js b/helloworld/node_modules/resolve/lib/normalize-options.js
new file mode 100755
index 0000000..4b56904
--- /dev/null
+++ b/helloworld/node_modules/resolve/lib/normalize-options.js
@@ -0,0 +1,10 @@
+module.exports = function (x, opts) {
+    /**
+     * This file is purposefully a passthrough. It's expected that third-party
+     * environments will override it at runtime in order to inject special logic
+     * into `resolve` (by manipulating the options). One such example is the PnP
+     * code path in Yarn.
+     */
+
+    return opts || {};
+};
diff --git a/helloworld/node_modules/resolve/lib/sync.js b/helloworld/node_modules/resolve/lib/sync.js
new file mode 100755
index 0000000..33ad5da
--- /dev/null
+++ b/helloworld/node_modules/resolve/lib/sync.js
@@ -0,0 +1,154 @@
+var core = require('./core');
+var fs = require('fs');
+var path = require('path');
+var caller = require('./caller.js');
+var nodeModulesPaths = require('./node-modules-paths.js');
+var normalizeOptions = require('./normalize-options.js');
+
+var defaultIsFile = function isFile(file) {
+    try {
+        var stat = fs.statSync(file);
+    } catch (e) {
+        if (e && (e.code === 'ENOENT' || e.code === 'ENOTDIR')) return false;
+        throw e;
+    }
+    return stat.isFile() || stat.isFIFO();
+};
+
+module.exports = function (x, options) {
+    if (typeof x !== 'string') {
+        throw new TypeError('Path must be a string.');
+    }
+    var opts = normalizeOptions(x, options);
+
+    var isFile = opts.isFile || defaultIsFile;
+    var readFileSync = opts.readFileSync || fs.readFileSync;
+
+    var extensions = opts.extensions || ['.js'];
+    var basedir = opts.basedir || path.dirname(caller());
+    var parent = opts.filename || basedir;
+
+    opts.paths = opts.paths || [];
+
+    // ensure that `basedir` is an absolute path at this point, resolving against the process' current working directory
+    var absoluteStart = path.resolve(basedir);
+
+    if (opts.preserveSymlinks === false) {
+        try {
+            absoluteStart = fs.realpathSync(absoluteStart);
+        } catch (realPathErr) {
+            if (realPathErr.code !== 'ENOENT') {
+                throw realPathErr;
+            }
+        }
+    }
+
+    if ((/^(?:\.\.?(?:\/|$)|\/|([A-Za-z]:)?[/\\])/).test(x)) {
+        var res = path.resolve(absoluteStart, x);
+        if (x === '..' || x.slice(-1) === '/') res += '/';
+        var m = loadAsFileSync(res) || loadAsDirectorySync(res);
+        if (m) return m;
+    } else {
+        var n = loadNodeModulesSync(x, absoluteStart);
+        if (n) return n;
+    }
+
+    if (core[x]) return x;
+
+    var err = new Error("Cannot find module '" + x + "' from '" + parent + "'");
+    err.code = 'MODULE_NOT_FOUND';
+    throw err;
+
+    function loadAsFileSync(x) {
+        var pkg = loadpkg(path.dirname(x));
+
+        if (pkg && pkg.dir && pkg.pkg && opts.pathFilter) {
+            var rfile = path.relative(pkg.dir, x);
+            var r = opts.pathFilter(pkg.pkg, x, rfile);
+            if (r) {
+                x = path.resolve(pkg.dir, r); // eslint-disable-line no-param-reassign
+            }
+        }
+
+        if (isFile(x)) {
+            return x;
+        }
+
+        for (var i = 0; i < extensions.length; i++) {
+            var file = x + extensions[i];
+            if (isFile(file)) {
+                return file;
+            }
+        }
+    }
+
+    function loadpkg(dir) {
+        if (dir === '' || dir === '/') return;
+        if (process.platform === 'win32' && (/^\w:[/\\]*$/).test(dir)) {
+            return;
+        }
+        if ((/[/\\]node_modules[/\\]*$/).test(dir)) return;
+
+        var pkgfile = path.join(dir, 'package.json');
+
+        if (!isFile(pkgfile)) {
+            return loadpkg(path.dirname(dir));
+        }
+
+        var body = readFileSync(pkgfile);
+
+        try {
+            var pkg = JSON.parse(body);
+        } catch (jsonErr) {}
+
+        if (pkg && opts.packageFilter) {
+            pkg = opts.packageFilter(pkg, dir);
+        }
+
+        return { pkg: pkg, dir: dir };
+    }
+
+    function loadAsDirectorySync(x) {
+        var pkgfile = path.join(x, '/package.json');
+        if (isFile(pkgfile)) {
+            try {
+                var body = readFileSync(pkgfile, 'UTF8');
+                var pkg = JSON.parse(body);
+            } catch (e) {}
+
+            if (opts.packageFilter) {
+                pkg = opts.packageFilter(pkg, x);
+            }
+
+            if (pkg.main) {
+                if (typeof pkg.main !== 'string') {
+                    var mainError = new TypeError('package “' + pkg.name + '” `main` must be a string');
+                    mainError.code = 'INVALID_PACKAGE_MAIN';
+                    throw mainError;
+                }
+                if (pkg.main === '.' || pkg.main === './') {
+                    pkg.main = 'index';
+                }
+                try {
+                    var m = loadAsFileSync(path.resolve(x, pkg.main));
+                    if (m) return m;
+                    var n = loadAsDirectorySync(path.resolve(x, pkg.main));
+                    if (n) return n;
+                } catch (e) {}
+            }
+        }
+
+        return loadAsFileSync(path.join(x, '/index'));
+    }
+
+    function loadNodeModulesSync(x, start) {
+        var dirs = nodeModulesPaths(start, opts, x);
+        for (var i = 0; i < dirs.length; i++) {
+            var dir = dirs[i];
+            var m = loadAsFileSync(path.join(dir, '/', x));
+            if (m) return m;
+            var n = loadAsDirectorySync(path.join(dir, '/', x));
+            if (n) return n;
+        }
+    }
+};
diff --git a/helloworld/node_modules/resolve/package.json b/helloworld/node_modules/resolve/package.json
new file mode 100755
index 0000000..2f01b35
--- /dev/null
+++ b/helloworld/node_modules/resolve/package.json
@@ -0,0 +1,71 @@
+{
+  "_from": "resolve@^1.10.0",
+  "_id": "resolve@1.10.0",
+  "_inBundle": false,
+  "_integrity": "sha512-3sUr9aq5OfSg2S9pNtPA9hL1FVEAjvfOC4leW0SNf/mpnaakz2a9femSd6LqAww2RaFctwyf1lCqnTHuF1rxDg==",
+  "_location": "/resolve",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "resolve@^1.10.0",
+    "name": "resolve",
+    "escapedName": "resolve",
+    "rawSpec": "^1.10.0",
+    "saveSpec": null,
+    "fetchSpec": "^1.10.0"
+  },
+  "_requiredBy": [
+    "/normalize-package-data"
+  ],
+  "_resolved": "https://registry.npmjs.org/resolve/-/resolve-1.10.0.tgz",
+  "_shasum": "3bdaaeaf45cc07f375656dfd2e54ed0810b101ba",
+  "_spec": "resolve@^1.10.0",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/normalize-package-data",
+  "author": {
+    "name": "James Halliday",
+    "email": "mail@substack.net",
+    "url": "http://substack.net"
+  },
+  "bugs": {
+    "url": "https://github.com/browserify/resolve/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "path-parse": "^1.0.6"
+  },
+  "deprecated": false,
+  "description": "resolve like require.resolve() on behalf of files asynchronously and synchronously",
+  "devDependencies": {
+    "@ljharb/eslint-config": "^13.1.1",
+    "eslint": "^5.12.0",
+    "object-keys": "^1.0.12",
+    "safe-publish-latest": "^1.1.2",
+    "tap": "0.4.13",
+    "tape": "^4.9.2"
+  },
+  "homepage": "https://github.com/browserify/resolve#readme",
+  "keywords": [
+    "resolve",
+    "require",
+    "node",
+    "module"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "name": "resolve",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/browserify/resolve.git"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "posttest": "npm run test:multirepo",
+    "prepublish": "safe-publish-latest",
+    "pretest": "npm run lint",
+    "test": "npm run --silent tests-only",
+    "test:multirepo": "cd ./test/resolver/multirepo && npm install && npm test",
+    "tests-only": "tape test/*.js"
+  },
+  "version": "1.10.0"
+}
diff --git a/helloworld/node_modules/resolve/readme.markdown b/helloworld/node_modules/resolve/readme.markdown
new file mode 100755
index 0000000..95be0f9
--- /dev/null
+++ b/helloworld/node_modules/resolve/readme.markdown
@@ -0,0 +1,179 @@
+# resolve
+
+implements the [node `require.resolve()`
+algorithm](https://nodejs.org/api/modules.html#modules_all_together)
+such that you can `require.resolve()` on behalf of a file asynchronously and
+synchronously
+
+[![build status](https://secure.travis-ci.org/browserify/node-resolve.png)](http://travis-ci.org/browserify/node-resolve)
+
+# example
+
+asynchronously resolve:
+
+```js
+var resolve = require('resolve');
+resolve('tap', { basedir: __dirname }, function (err, res) {
+    if (err) console.error(err);
+    else console.log(res);
+});
+```
+
+```
+$ node example/async.js
+/home/substack/projects/node-resolve/node_modules/tap/lib/main.js
+```
+
+synchronously resolve:
+
+```js
+var resolve = require('resolve');
+var res = resolve.sync('tap', { basedir: __dirname });
+console.log(res);
+```
+
+```
+$ node example/sync.js
+/home/substack/projects/node-resolve/node_modules/tap/lib/main.js
+```
+
+# methods
+
+```js
+var resolve = require('resolve');
+```
+
+## resolve(id, opts={}, cb)
+
+Asynchronously resolve the module path string `id` into `cb(err, res [, pkg])`, where `pkg` (if defined) is the data from `package.json`.
+
+options are:
+
+* opts.basedir - directory to begin resolving from
+
+* opts.package - `package.json` data applicable to the module being loaded
+
+* opts.extensions - array of file extensions to search in order
+
+* opts.readFile - how to read files asynchronously
+
+* opts.isFile - function to asynchronously test whether a file exists
+
+* `opts.packageFilter(pkg, pkgfile)` - transform the parsed package.json contents before looking at the "main" field
+  * pkg - package data
+  * pkgfile - path to package.json
+
+* `opts.pathFilter(pkg, path, relativePath)` - transform a path within a package
+  * pkg - package data
+  * path - the path being resolved
+  * relativePath - the path relative from the package.json location
+  * returns - a relative path that will be joined from the package.json location
+
+* opts.paths - require.paths array to use if nothing is found on the normal `node_modules` recursive walk (probably don't use this)
+
+  For advanced users, `paths` can also be a `opts.paths(request, start, opts)` function
+    * request - the import specifier being resolved
+    * start - lookup path
+    * getNodeModulesDirs - a thunk (no-argument function) that returns the paths using standard `node_modules` resolution
+    * opts - the resolution options
+
+* opts.moduleDirectory - directory (or directories) in which to recursively look for modules. default: `"node_modules"`
+
+* opts.preserveSymlinks - if true, doesn't resolve `basedir` to real path before resolving.
+This is the way Node resolves dependencies when executed with the [--preserve-symlinks](https://nodejs.org/api/all.html#cli_preserve_symlinks) flag.
+**Note:** this property is currently `true` by default but it will be changed to
+`false` in the next major version because *Node's resolution algorithm does not preserve symlinks by default*.
+
+default `opts` values:
+
+```js
+{
+    paths: [],
+    basedir: __dirname,
+    extensions: ['.js'],
+    readFile: fs.readFile,
+    isFile: function isFile(file, cb) {
+        fs.stat(file, function (err, stat) {
+            if (!err) {
+                return cb(null, stat.isFile() || stat.isFIFO());
+            }
+            if (err.code === 'ENOENT' || err.code === 'ENOTDIR') return cb(null, false);
+            return cb(err);
+        });
+    },
+    moduleDirectory: 'node_modules',
+    preserveSymlinks: true
+}
+```
+
+## resolve.sync(id, opts)
+
+Synchronously resolve the module path string `id`, returning the result and
+throwing an error when `id` can't be resolved.
+
+options are:
+
+* opts.basedir - directory to begin resolving from
+
+* opts.extensions - array of file extensions to search in order
+
+* opts.readFile - how to read files synchronously
+
+* opts.isFile - function to synchronously test whether a file exists
+
+* `opts.packageFilter(pkg, dir)` - transform the parsed package.json contents before looking at the "main" field
+  * pkg - package data
+  * dir - directory for package.json (Note: the second argument will change to "pkgfile" in v2)
+
+* `opts.pathFilter(pkg, path, relativePath)` - transform a path within a package
+  * pkg - package data
+  * path - the path being resolved
+  * relativePath - the path relative from the package.json location
+  * returns - a relative path that will be joined from the package.json location
+
+* opts.paths - require.paths array to use if nothing is found on the normal `node_modules` recursive walk (probably don't use this)
+
+* opts.moduleDirectory - directory (or directories) in which to recursively look for modules. default: `"node_modules"`
+
+* opts.preserveSymlinks - if true, doesn't resolve `basedir` to real path before resolving.
+This is the way Node resolves dependencies when executed with the [--preserve-symlinks](https://nodejs.org/api/all.html#cli_preserve_symlinks) flag.
+**Note:** this property is currently `true` by default but it will be changed to
+`false` in the next major version because *Node's resolution algorithm does not preserve symlinks by default*.
+
+default `opts` values:
+
+```js
+{
+    paths: [],
+    basedir: __dirname,
+    extensions: ['.js'],
+    readFileSync: fs.readFileSync,
+    isFile: function isFile(file) {
+        try {
+            var stat = fs.statSync(file);
+        } catch (e) {
+            if (e && (e.code === 'ENOENT' || e.code === 'ENOTDIR')) return false;
+            throw e;
+        }
+        return stat.isFile() || stat.isFIFO();
+    },
+    moduleDirectory: 'node_modules',
+    preserveSymlinks: true
+}
+```
+
+## resolve.isCore(pkg)
+
+Return whether a package is in core.
+
+# install
+
+With [npm](https://npmjs.org) do:
+
+```sh
+npm install resolve
+```
+
+# license
+
+MIT
diff --git a/helloworld/node_modules/resolve/test/core.js b/helloworld/node_modules/resolve/test/core.js
new file mode 100755
index 0000000..33d9f32
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/core.js
@@ -0,0 +1,82 @@
+var test = require('tape');
+var keys = require('object-keys');
+var resolve = require('../');
+
+test('core modules', function (t) {
+    t.test('isCore()', function (st) {
+        st.ok(resolve.isCore('fs'));
+        st.ok(resolve.isCore('net'));
+        st.ok(resolve.isCore('http'));
+
+        st.ok(!resolve.isCore('seq'));
+        st.ok(!resolve.isCore('../'));
+        st.end();
+    });
+
+    t.test('core list', function (st) {
+        var cores = keys(resolve.core);
+        st.plan(cores.length);
+
+        for (var i = 0; i < cores.length; ++i) {
+            var mod = cores[i];
+            if (resolve.core[mod]) {
+                st.doesNotThrow(
+                    function () { require(mod); }, // eslint-disable-line no-loop-func
+                    mod + ' supported; requiring does not throw'
+                );
+            } else {
+                st.throws(
+                    function () { require(mod); }, // eslint-disable-line no-loop-func
+                    mod + ' not supported; requiring throws'
+                );
+            }
+        }
+
+        st.end();
+    });
+
+    t.test('core via repl module', { skip: !resolve.core.repl }, function (st) {
+        var libs = require('repl')._builtinLibs; // eslint-disable-line no-underscore-dangle
+        if (!libs) {
+            st.skip('module.builtinModules does not exist');
+            return st.end();
+        }
+        for (var i = 0; i < libs.length; ++i) {
+            var mod = libs[i];
+            st.ok(resolve.core[mod], mod + ' is a core module');
+            st.doesNotThrow(
+                function () { require(mod); }, // eslint-disable-line no-loop-func
+                'requiring ' + mod + ' does not throw'
+            );
+        }
+        st.end();
+    });
+
+    t.test('core via builtinModules list', { skip: !resolve.core.module }, function (st) {
+        var libs = require('module').builtinModules;
+        if (!libs) {
+            st.skip('module.builtinModules does not exist');
+            return st.end();
+        }
+        var blacklist = [
+            '_debug_agent',
+            'v8/tools/tickprocessor-driver',
+            'v8/tools/SourceMap',
+            'v8/tools/tickprocessor',
+            'v8/tools/profile'
+        ];
+        for (var i = 0; i < libs.length; ++i) {
+            var mod = libs[i];
+            if (blacklist.indexOf(mod) === -1) {
+                st.ok(resolve.core[mod], mod + ' is a core module');
+                st.doesNotThrow(
+                    function () { require(mod); }, // eslint-disable-line no-loop-func
+                    'requiring ' + mod + ' does not throw'
+                );
+            }
+        }
+        st.end();
+    });
+
+    t.end();
+});
diff --git a/helloworld/node_modules/resolve/test/dotdot.js b/helloworld/node_modules/resolve/test/dotdot.js
new file mode 100755
index 0000000..3080665
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/dotdot.js
@@ -0,0 +1,29 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('dotdot', function (t) {
+    t.plan(4);
+    var dir = path.join(__dirname, '/dotdot/abc');
+
+    resolve('..', { basedir: dir }, function (err, res, pkg) {
+        t.ifError(err);
+        t.equal(res, path.join(__dirname, 'dotdot/index.js'));
+    });
+
+    resolve('.', { basedir: dir }, function (err, res, pkg) {
+        t.ifError(err);
+        t.equal(res, path.join(dir, 'index.js'));
+    });
+});
+
+test('dotdot sync', function (t) {
+    t.plan(2);
+    var dir = path.join(__dirname, '/dotdot/abc');
+
+    var a = resolve.sync('..', { basedir: dir });
+    t.equal(a, path.join(__dirname, 'dotdot/index.js'));
+
+    var b = resolve.sync('.', { basedir: dir });
+    t.equal(b, path.join(dir, 'index.js'));
+});
diff --git a/helloworld/node_modules/resolve/test/dotdot/abc/index.js b/helloworld/node_modules/resolve/test/dotdot/abc/index.js
new file mode 100755
index 0000000..67f2534
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/dotdot/abc/index.js
@@ -0,0 +1,2 @@
+var x = require('..');
+console.log(x);
diff --git a/helloworld/node_modules/resolve/test/dotdot/index.js b/helloworld/node_modules/resolve/test/dotdot/index.js
new file mode 100755
index 0000000..643f9fc
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/dotdot/index.js
@@ -0,0 +1 @@
+module.exports = 'whatever';
diff --git a/helloworld/node_modules/resolve/test/faulty_basedir.js b/helloworld/node_modules/resolve/test/faulty_basedir.js
new file mode 100755
index 0000000..5f2141a
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/faulty_basedir.js
@@ -0,0 +1,29 @@
+var test = require('tape');
+var path = require('path');
+var resolve = require('../');
+
+test('faulty basedir must produce error in windows', { skip: process.platform !== 'win32' }, function (t) {
+    t.plan(1);
+
+    var resolverDir = 'C:\\a\\b\\c\\d';
+
+    resolve('tape/lib/test.js', { basedir: resolverDir }, function (err, res, pkg) {
+        t.equal(!!err, true);
+    });
+});
+
+test('non-existent basedir should not throw when preserveSymlinks is false', function (t) {
+    t.plan(2);
+
+    var opts = {
+        basedir: path.join(path.sep, 'unreal', 'path', 'that', 'does', 'not', 'exist'),
+        preserveSymlinks: false
+    };
+
+    var module = './dotdot/abc';
+
+    resolve(module, opts, function (err, res) {
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+        t.equal(res, undefined);
+    });
+});
diff --git a/helloworld/node_modules/resolve/test/filter.js b/helloworld/node_modules/resolve/test/filter.js
new file mode 100755
index 0000000..dfc622a
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/filter.js
@@ -0,0 +1,34 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('filter', function (t) {
+    t.plan(4);
+    var dir = path.join(__dirname, 'resolver');
+    var packageFilterArgs;
+    resolve('./baz', {
+        basedir: dir,
+        packageFilter: function (pkg, pkgfile) {
+            pkg.main = 'doom';
+            packageFilterArgs = [pkg, pkgfile];
+            return pkg;
+        }
+    }, function (err, res, pkg) {
+        if (err) t.fail(err);
+
+        t.equal(res, path.join(dir, 'baz/doom.js'), 'changing the package "main" works');
+
+        var packageData = packageFilterArgs[0];
+        t.equal(pkg, packageData, 'first packageFilter argument is "pkg"');
+        t.equal(packageData.main, 'doom', 'package "main" was altered');
+
+        var packageFile = packageFilterArgs[1];
+        t.equal(
+            packageFile,
+            path.join(dir, 'baz/package.json'),
+            'second packageFilter argument is "pkgfile"'
+        );
+
+        t.end();
+    });
+});
diff --git a/helloworld/node_modules/resolve/test/filter_sync.js b/helloworld/node_modules/resolve/test/filter_sync.js
new file mode 100755
index 0000000..064052e
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/filter_sync.js
@@ -0,0 +1,26 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('filter', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+    var packageFilterArgs;
+    var res = resolve.sync('./baz', {
+        basedir: dir,
+        packageFilter: function (pkg, dir) {
+            pkg.main = 'doom';
+            packageFilterArgs = [pkg, dir];
+            return pkg;
+        }
+    });
+
+    t.equal(res, path.join(dir, 'baz/doom.js'), 'changing the package "main" works');
+
+    var packageData = packageFilterArgs[0];
+    t.equal(packageData.main, 'doom', 'package "main" was altered');
+
+    var packageFile = packageFilterArgs[1];
+    t.equal(packageFile, path.join(dir, 'baz'), 'second packageFilter argument is "dir"');
+
+    t.end();
+});
diff --git a/helloworld/node_modules/resolve/test/mock.js b/helloworld/node_modules/resolve/test/mock.js
new file mode 100755
index 0000000..a88059d
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/mock.js
@@ -0,0 +1,143 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('mock', function (t) {
+    t.plan(8);
+
+    var files = {};
+    files[path.resolve('/foo/bar/baz.js')] = 'beep';
+
+    function opts(basedir) {
+        return {
+            basedir: path.resolve(basedir),
+            isFile: function (file, cb) {
+                cb(null, Object.prototype.hasOwnProperty.call(files, path.resolve(file)));
+            },
+            readFile: function (file, cb) {
+                cb(null, files[path.resolve(file)]);
+            }
+        };
+    }
+
+    resolve('./baz', opts('/foo/bar'), function (err, res, pkg) {
+        if (err) return t.fail(err);
+        t.equal(res, path.resolve('/foo/bar/baz.js'));
+        t.equal(pkg, undefined);
+    });
+
+    resolve('./baz.js', opts('/foo/bar'), function (err, res, pkg) {
+        if (err) return t.fail(err);
+        t.equal(res, path.resolve('/foo/bar/baz.js'));
+        t.equal(pkg, undefined);
+    });
+
+    resolve('baz', opts('/foo/bar'), function (err, res) {
+        t.equal(err.message, "Cannot find module 'baz' from '" + path.resolve('/foo/bar') + "'");
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+    });
+
+    resolve('../baz', opts('/foo/bar'), function (err, res) {
+        t.equal(err.message, "Cannot find module '../baz' from '" + path.resolve('/foo/bar') + "'");
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+    });
+});
+
+test('mock from package', function (t) {
+    t.plan(8);
+
+    var files = {};
+    files[path.resolve('/foo/bar/baz.js')] = 'beep';
+
+    function opts(basedir) {
+        return {
+            basedir: path.resolve(basedir),
+            isFile: function (file, cb) {
+                cb(null, Object.prototype.hasOwnProperty.call(files, file));
+            },
+            'package': { main: 'bar' },
+            readFile: function (file, cb) {
+                cb(null, files[file]);
+            }
+        };
+    }
+
+    resolve('./baz', opts('/foo/bar'), function (err, res, pkg) {
+        if (err) return t.fail(err);
+        t.equal(res, path.resolve('/foo/bar/baz.js'));
+        t.equal(pkg && pkg.main, 'bar');
+    });
+
+    resolve('./baz.js', opts('/foo/bar'), function (err, res, pkg) {
+        if (err) return t.fail(err);
+        t.equal(res, path.resolve('/foo/bar/baz.js'));
+        t.equal(pkg && pkg.main, 'bar');
+    });
+
+    resolve('baz', opts('/foo/bar'), function (err, res) {
+        t.equal(err.message, "Cannot find module 'baz' from '" + path.resolve('/foo/bar') + "'");
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+    });
+
+    resolve('../baz', opts('/foo/bar'), function (err, res) {
+        t.equal(err.message, "Cannot find module '../baz' from '" + path.resolve('/foo/bar') + "'");
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+    });
+});
+
+test('mock package', function (t) {
+    t.plan(2);
+
+    var files = {};
+    files[path.resolve('/foo/node_modules/bar/baz.js')] = 'beep';
+    files[path.resolve('/foo/node_modules/bar/package.json')] = JSON.stringify({
+        main: './baz.js'
+    });
+
+    function opts(basedir) {
+        return {
+            basedir: path.resolve(basedir),
+            isFile: function (file, cb) {
+                cb(null, Object.prototype.hasOwnProperty.call(files, path.resolve(file)));
+            },
+            readFile: function (file, cb) {
+                cb(null, files[path.resolve(file)]);
+            }
+        };
+    }
+
+    resolve('bar', opts('/foo'), function (err, res, pkg) {
+        if (err) return t.fail(err);
+        t.equal(res, path.resolve('/foo/node_modules/bar/baz.js'));
+        t.equal(pkg && pkg.main, './baz.js');
+    });
+});
+
+test('mock package from package', function (t) {
+    t.plan(2);
+
+    var files = {};
+    files[path.resolve('/foo/node_modules/bar/baz.js')] = 'beep';
+    files[path.resolve('/foo/node_modules/bar/package.json')] = JSON.stringify({
+        main: './baz.js'
+    });
+
+    function opts(basedir) {
+        return {
+            basedir: path.resolve(basedir),
+            isFile: function (file, cb) {
+                cb(null, Object.prototype.hasOwnProperty.call(files, path.resolve(file)));
+            },
+            'package': { main: 'bar' },
+            readFile: function (file, cb) {
+                cb(null, files[path.resolve(file)]);
+            }
+        };
+    }
+
+    resolve('bar', opts('/foo'), function (err, res, pkg) {
+        if (err) return t.fail(err);
+        t.equal(res, path.resolve('/foo/node_modules/bar/baz.js'));
+        t.equal(pkg && pkg.main, './baz.js');
+    });
+});
diff --git a/helloworld/node_modules/resolve/test/mock_sync.js b/helloworld/node_modules/resolve/test/mock_sync.js
new file mode 100755
index 0000000..43af102
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/mock_sync.js
@@ -0,0 +1,67 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('mock', function (t) {
+    t.plan(4);
+
+    var files = {};
+    files[path.resolve('/foo/bar/baz.js')] = 'beep';
+
+    function opts(basedir) {
+        return {
+            basedir: path.resolve(basedir),
+            isFile: function (file) {
+                return Object.prototype.hasOwnProperty.call(files, file);
+            },
+            readFileSync: function (file) {
+                return files[file];
+            }
+        };
+    }
+
+    t.equal(
+        resolve.sync('./baz', opts('/foo/bar')),
+        path.resolve('/foo/bar/baz.js')
+    );
+
+    t.equal(
+        resolve.sync('./baz.js', opts('/foo/bar')),
+        path.resolve('/foo/bar/baz.js')
+    );
+
+    t.throws(function () {
+        resolve.sync('baz', opts('/foo/bar'));
+    });
+
+    t.throws(function () {
+        resolve.sync('../baz', opts('/foo/bar'));
+    });
+});
+
+test('mock package', function (t) {
+    t.plan(1);
+
+    var files = {};
+    files[path.resolve('/foo/node_modules/bar/baz.js')] = 'beep';
+    files[path.resolve('/foo/node_modules/bar/package.json')] = JSON.stringify({
+        main: './baz.js'
+    });
+
+    function opts(basedir) {
+        return {
+            basedir: path.resolve(basedir),
+            isFile: function (file) {
+                return Object.prototype.hasOwnProperty.call(files, file);
+            },
+            readFileSync: function (file) {
+                return files[file];
+            }
+        };
+    }
+
+    t.equal(
+        resolve.sync('bar', opts('/foo')),
+        path.resolve('/foo/node_modules/bar/baz.js')
+    );
+});
diff --git a/helloworld/node_modules/resolve/test/module_dir.js b/helloworld/node_modules/resolve/test/module_dir.js
new file mode 100755
index 0000000..b50e5bb
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/module_dir.js
@@ -0,0 +1,56 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('moduleDirectory strings', function (t) {
+    t.plan(4);
+    var dir = path.join(__dirname, 'module_dir');
+    var xopts = {
+        basedir: dir,
+        moduleDirectory: 'xmodules'
+    };
+    resolve('aaa', xopts, function (err, res, pkg) {
+        t.ifError(err);
+        t.equal(res, path.join(dir, '/xmodules/aaa/index.js'));
+    });
+
+    var yopts = {
+        basedir: dir,
+        moduleDirectory: 'ymodules'
+    };
+    resolve('aaa', yopts, function (err, res, pkg) {
+        t.ifError(err);
+        t.equal(res, path.join(dir, '/ymodules/aaa/index.js'));
+    });
+});
+
+test('moduleDirectory array', function (t) {
+    t.plan(6);
+    var dir = path.join(__dirname, 'module_dir');
+    var aopts = {
+        basedir: dir,
+        moduleDirectory: ['xmodules', 'ymodules', 'zmodules']
+    };
+    resolve('aaa', aopts, function (err, res, pkg) {
+        t.ifError(err);
+        t.equal(res, path.join(dir, '/xmodules/aaa/index.js'));
+    });
+
+    var bopts = {
+        basedir: dir,
+        moduleDirectory: ['zmodules', 'ymodules', 'xmodules']
+    };
+    resolve('aaa', bopts, function (err, res, pkg) {
+        t.ifError(err);
+        t.equal(res, path.join(dir, '/ymodules/aaa/index.js'));
+    });
+
+    var copts = {
+        basedir: dir,
+        moduleDirectory: ['xmodules', 'ymodules', 'zmodules']
+    };
+    resolve('bbb', copts, function (err, res, pkg) {
+        t.ifError(err);
+        t.equal(res, path.join(dir, '/zmodules/bbb/main.js'));
+    });
+});
diff --git a/helloworld/node_modules/resolve/test/module_dir/xmodules/aaa/index.js b/helloworld/node_modules/resolve/test/module_dir/xmodules/aaa/index.js
new file mode 100755
index 0000000..dd7cf7b
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/module_dir/xmodules/aaa/index.js
@@ -0,0 +1 @@
+module.exports = function (x) { return x * 100; };
diff --git a/helloworld/node_modules/resolve/test/module_dir/ymodules/aaa/index.js b/helloworld/node_modules/resolve/test/module_dir/ymodules/aaa/index.js
new file mode 100755
index 0000000..ef2d4d4
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/module_dir/ymodules/aaa/index.js
@@ -0,0 +1 @@
+module.exports = function (x) { return x + 100; };
diff --git a/helloworld/node_modules/resolve/test/module_dir/zmodules/bbb/main.js b/helloworld/node_modules/resolve/test/module_dir/zmodules/bbb/main.js
new file mode 100755
index 0000000..e8ba629
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/module_dir/zmodules/bbb/main.js
@@ -0,0 +1 @@
+module.exports = function (n) { return n * 111; };
diff --git a/helloworld/node_modules/resolve/test/module_dir/zmodules/bbb/package.json b/helloworld/node_modules/resolve/test/module_dir/zmodules/bbb/package.json
new file mode 100755
index 0000000..c13b8cf
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/module_dir/zmodules/bbb/package.json
@@ -0,0 +1,3 @@
+{
+  "main": "main.js"
+}
diff --git a/helloworld/node_modules/resolve/test/node-modules-paths.js b/helloworld/node_modules/resolve/test/node-modules-paths.js
new file mode 100755
index 0000000..1500fb1
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/node-modules-paths.js
@@ -0,0 +1,121 @@
+var test = require('tape');
+var path = require('path');
+var parse = path.parse || require('path-parse');
+var keys = require('object-keys');
+
+var nodeModulesPaths = require('../lib/node-modules-paths');
+
+var verifyDirs = function verifyDirs(t, start, dirs, moduleDirectories, paths) {
+    var moduleDirs = [].concat(moduleDirectories || 'node_modules');
+    if (paths) {
+        for (var k = 0; k < paths.length; ++k) {
+            moduleDirs.push(path.basename(paths[k]));
+        }
+    }
+
+    var foundModuleDirs = {};
+    var uniqueDirs = {};
+    var parsedDirs = {};
+    for (var i = 0; i < dirs.length; ++i) {
+        var parsed = parse(dirs[i]);
+        if (!foundModuleDirs[parsed.base]) { foundModuleDirs[parsed.base] = 0; }
+        foundModuleDirs[parsed.base] += 1;
+        parsedDirs[parsed.dir] = true;
+        uniqueDirs[dirs[i]] = true;
+    }
+    t.equal(keys(parsedDirs).length >= start.split(path.sep).length, true, 'there are >= dirs than "start" has');
+    var foundModuleDirNames = keys(foundModuleDirs);
+    t.deepEqual(foundModuleDirNames, moduleDirs, 'all desired module dirs were found');
+    t.equal(keys(uniqueDirs).length, dirs.length, 'all dirs provided were unique');
+
+    var counts = {};
+    for (var j = 0; j < foundModuleDirNames.length; ++j) {
+        counts[foundModuleDirs[j]] = true;
+    }
+    t.equal(keys(counts).length, 1, 'all found module directories had the same count');
+};
+
+test('node-modules-paths', function (t) {
+    t.test('no options', function (t) {
+        var start = path.join(__dirname, 'resolver');
+        var dirs = nodeModulesPaths(start);
+
+        verifyDirs(t, start, dirs);
+
+        t.end();
+    });
+
+    t.test('empty options', function (t) {
+        var start = path.join(__dirname, 'resolver');
+        var dirs = nodeModulesPaths(start, {});
+
+        verifyDirs(t, start, dirs);
+
+        t.end();
+    });
+
+    t.test('with paths=array option', function (t) {
+        var start = path.join(__dirname, 'resolver');
+        var paths = ['a', 'b'];
+        var dirs = nodeModulesPaths(start, { paths: paths });
+
+        verifyDirs(t, start, dirs, null, paths);
+
+        t.end();
+    });
+
+    t.test('with paths=function option', function (t) {
+        var paths = function paths(request, absoluteStart, getNodeModulesDirs, opts) {
+            return getNodeModulesDirs().concat(path.join(absoluteStart, 'not node modules', request));
+        };
+
+        var start = path.join(__dirname, 'resolver');
+        var dirs = nodeModulesPaths(start, { paths: paths }, 'pkg');
+
+        verifyDirs(t, start, dirs, null, [path.join(start, 'not node modules', 'pkg')]);
+
+        t.end();
+    });
+
+    t.test('with paths=function skipping node modules resolution', function (t) {
+        var paths = function paths(request, absoluteStart, getNodeModulesDirs, opts) {
+            return [];
+        };
+        var start = path.join(__dirname, 'resolver');
+        var dirs = nodeModulesPaths(start, { paths: paths });
+        t.deepEqual(dirs, [], 'no node_modules was computed');
+        t.end();
+    });
+
+    t.test('with moduleDirectory option', function (t) {
+        var start = path.join(__dirname, 'resolver');
+        var moduleDirectory = 'not node modules';
+        var dirs = nodeModulesPaths(start, { moduleDirectory: moduleDirectory });
+
+        verifyDirs(t, start, dirs, moduleDirectory);
+
+        t.end();
+    });
+
+    t.test('with 1 moduleDirectory and paths options', function (t) {
+        var start = path.join(__dirname, 'resolver');
+        var paths = ['a', 'b'];
+        var moduleDirectory = 'not node modules';
+        var dirs = nodeModulesPaths(start, { paths: paths, moduleDirectory: moduleDirectory });
+
+        verifyDirs(t, start, dirs, moduleDirectory, paths);
+
+        t.end();
+    });
+
+    t.test('with 1+ moduleDirectory and paths options', function (t) {
+        var start = path.join(__dirname, 'resolver');
+        var paths = ['a', 'b'];
+        var moduleDirectories = ['not node modules', 'other modules'];
+        var dirs = nodeModulesPaths(start, { paths: paths, moduleDirectory: moduleDirectories });
+
+        verifyDirs(t, start, dirs, moduleDirectories, paths);
+
+        t.end();
+    });
+});
diff --git a/helloworld/node_modules/resolve/test/node_path.js b/helloworld/node_modules/resolve/test/node_path.js
new file mode 100755
index 0000000..d06aa4e
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/node_path.js
@@ -0,0 +1,70 @@
+var fs = require('fs');
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('$NODE_PATH', function (t) {
+    t.plan(8);
+
+    var isDir = function (dir, cb) {
+        if (dir === '/node_path' || dir === 'node_path/x') {
+            return cb(null, true);
+        }
+        fs.stat(dir, function (err, stat) {
+            if (!err) {
+                return cb(null, stat.isDirectory());
+            }
+            if (err.code === 'ENOENT' || err.code === 'ENOTDIR') return cb(null, false);
+            return cb(err);
+        });
+    };
+
+    resolve('aaa', {
+        paths: [
+            path.join(__dirname, '/node_path/x'),
+            path.join(__dirname, '/node_path/y')
+        ],
+        basedir: __dirname,
+        isDirectory: isDir
+    }, function (err, res) {
+        t.error(err);
+        t.equal(res, path.join(__dirname, '/node_path/x/aaa/index.js'), 'aaa resolves');
+    });
+
+    resolve('bbb', {
+        paths: [
+            path.join(__dirname, '/node_path/x'),
+            path.join(__dirname, '/node_path/y')
+        ],
+        basedir: __dirname,
+        isDirectory: isDir
+    }, function (err, res) {
+        t.error(err);
+        t.equal(res, path.join(__dirname, '/node_path/y/bbb/index.js'), 'bbb resolves');
+    });
+
+    resolve('ccc', {
+        paths: [
+            path.join(__dirname, '/node_path/x'),
+            path.join(__dirname, '/node_path/y')
+        ],
+        basedir: __dirname,
+        isDirectory: isDir
+    }, function (err, res) {
+        t.error(err);
+        t.equal(res, path.join(__dirname, '/node_path/x/ccc/index.js'), 'ccc resolves');
+    });
+
+    // ensure that relative paths still resolve against the regular `node_modules` correctly
+    resolve('tap', {
+        paths: [
+            'node_path'
+        ],
+        basedir: path.join(__dirname, 'node_path/x'),
+        isDirectory: isDir
+    }, function (err, res) {
+        var root = require('tap/package.json').main;
+        t.error(err);
+        t.equal(res, path.resolve(__dirname, '..', 'node_modules/tap', root), 'tap resolves');
+    });
+});
diff --git a/helloworld/node_modules/resolve/test/node_path/x/aaa/index.js b/helloworld/node_modules/resolve/test/node_path/x/aaa/index.js
new file mode 100755
index 0000000..ad70d0b
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/node_path/x/aaa/index.js
@@ -0,0 +1 @@
+module.exports = 'A';
diff --git a/helloworld/node_modules/resolve/test/node_path/x/ccc/index.js b/helloworld/node_modules/resolve/test/node_path/x/ccc/index.js
new file mode 100755
index 0000000..a64132e
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/node_path/x/ccc/index.js
@@ -0,0 +1 @@
+module.exports = 'C';
diff --git a/helloworld/node_modules/resolve/test/node_path/y/bbb/index.js b/helloworld/node_modules/resolve/test/node_path/y/bbb/index.js
new file mode 100755
index 0000000..4d0f32e
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/node_path/y/bbb/index.js
@@ -0,0 +1 @@
+module.exports = 'B';
diff --git a/helloworld/node_modules/resolve/test/node_path/y/ccc/index.js b/helloworld/node_modules/resolve/test/node_path/y/ccc/index.js
new file mode 100755
index 0000000..793315e
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/node_path/y/ccc/index.js
@@ -0,0 +1 @@
+module.exports = 'CY';
diff --git a/helloworld/node_modules/resolve/test/nonstring.js b/helloworld/node_modules/resolve/test/nonstring.js
new file mode 100755
index 0000000..ef63c40
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/nonstring.js
@@ -0,0 +1,9 @@
+var test = require('tape');
+var resolve = require('../');
+
+test('nonstring', function (t) {
+    t.plan(1);
+    resolve(555, function (err, res, pkg) {
+        t.ok(err);
+    });
+});
diff --git a/helloworld/node_modules/resolve/test/pathfilter.js b/helloworld/node_modules/resolve/test/pathfilter.js
new file mode 100755
index 0000000..16519ae
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/pathfilter.js
@@ -0,0 +1,75 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+var resolverDir = path.join(__dirname, '/pathfilter/deep_ref');
+
+var pathFilterFactory = function (t) {
+    return function (pkg, x, remainder) {
+        t.equal(pkg.version, '1.2.3');
+        t.equal(x, path.join(resolverDir, 'node_modules/deep/ref'));
+        t.equal(remainder, 'ref');
+        return 'alt';
+    };
+};
+
+test('#62: deep module references and the pathFilter', function (t) {
+    t.test('deep/ref.js', function (st) {
+        st.plan(3);
+
+        resolve('deep/ref', { basedir: resolverDir }, function (err, res, pkg) {
+            if (err) st.fail(err);
+
+            st.equal(pkg.version, '1.2.3');
+            st.equal(res, path.join(resolverDir, 'node_modules/deep/ref.js'));
+        });
+
+        var res = resolve.sync('deep/ref', { basedir: resolverDir });
+        st.equal(res, path.join(resolverDir, 'node_modules/deep/ref.js'));
+    });
+
+    t.test('deep/deeper/ref', function (st) {
+        st.plan(4);
+
+        resolve(
+            'deep/deeper/ref',
+            { basedir: resolverDir },
+            function (err, res, pkg) {
+                if (err) t.fail(err);
+                st.notEqual(pkg, undefined);
+                st.equal(pkg.version, '1.2.3');
+                st.equal(res, path.join(resolverDir, 'node_modules/deep/deeper/ref.js'));
+            }
+        );
+
+        var res = resolve.sync(
+            'deep/deeper/ref',
+            { basedir: resolverDir }
+        );
+        st.equal(res, path.join(resolverDir, 'node_modules/deep/deeper/ref.js'));
+    });
+
+    t.test('deep/ref alt', function (st) {
+        st.plan(8);
+
+        var pathFilter = pathFilterFactory(st);
+
+        var res = resolve.sync(
+            'deep/ref',
+            { basedir: resolverDir, pathFilter: pathFilter }
+        );
+        st.equal(res, path.join(resolverDir, 'node_modules/deep/alt.js'));
+
+        resolve(
+            'deep/ref',
+            { basedir: resolverDir, pathFilter: pathFilter },
+            function (err, res, pkg) {
+                if (err) st.fail(err);
+                st.equal(res, path.join(resolverDir, 'node_modules/deep/alt.js'));
+                st.end();
+            }
+        );
+    });
+
+    t.end();
+});
diff --git a/helloworld/node_modules/resolve/test/pathfilter/deep_ref/main.js b/helloworld/node_modules/resolve/test/pathfilter/deep_ref/main.js
new file mode 100755
index 0000000..e69de29
diff --git a/helloworld/node_modules/resolve/test/precedence.js b/helloworld/node_modules/resolve/test/precedence.js
new file mode 100755
index 0000000..2febb59
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/precedence.js
@@ -0,0 +1,23 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('precedence', function (t) {
+    t.plan(3);
+    var dir = path.join(__dirname, 'precedence/aaa');
+
+    resolve('./', { basedir: dir }, function (err, res, pkg) {
+        t.ifError(err);
+        t.equal(res, path.join(dir, 'index.js'));
+        t.equal(pkg.name, 'resolve');
+    });
+});
+
+test('./ should not load ${dir}.js', function (t) { // eslint-disable-line no-template-curly-in-string
+    t.plan(1);
+    var dir = path.join(__dirname, 'precedence/bbb');
+
+    resolve('./', { basedir: dir }, function (err, res, pkg) {
+        t.ok(err);
+    });
+});
diff --git a/helloworld/node_modules/resolve/test/precedence/aaa.js b/helloworld/node_modules/resolve/test/precedence/aaa.js
new file mode 100755
index 0000000..b83a3e7
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/precedence/aaa.js
@@ -0,0 +1 @@
+module.exports = 'wtf';
diff --git a/helloworld/node_modules/resolve/test/precedence/aaa/index.js b/helloworld/node_modules/resolve/test/precedence/aaa/index.js
new file mode 100755
index 0000000..e0f8f6a
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/precedence/aaa/index.js
@@ -0,0 +1 @@
+module.exports = 'okok';
diff --git a/helloworld/node_modules/resolve/test/precedence/aaa/main.js b/helloworld/node_modules/resolve/test/precedence/aaa/main.js
new file mode 100755
index 0000000..93542a9
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/precedence/aaa/main.js
@@ -0,0 +1 @@
+console.log(require('./'));
diff --git a/helloworld/node_modules/resolve/test/precedence/bbb.js b/helloworld/node_modules/resolve/test/precedence/bbb.js
new file mode 100755
index 0000000..2298f47
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/precedence/bbb.js
@@ -0,0 +1 @@
+module.exports = '>_<';
diff --git a/helloworld/node_modules/resolve/test/precedence/bbb/main.js b/helloworld/node_modules/resolve/test/precedence/bbb/main.js
new file mode 100755
index 0000000..716b81d
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/precedence/bbb/main.js
@@ -0,0 +1 @@
+console.log(require('./')); // should throw
diff --git a/helloworld/node_modules/resolve/test/resolver.js b/helloworld/node_modules/resolve/test/resolver.js
new file mode 100755
index 0000000..f7fcd29
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver.js
@@ -0,0 +1,429 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('async foo', function (t) {
+    t.plan(12);
+    var dir = path.join(__dirname, 'resolver');
+
+    resolve('./foo', { basedir: dir }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'foo.js'));
+        t.equal(pkg && pkg.name, 'resolve');
+    });
+
+    resolve('./foo.js', { basedir: dir }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'foo.js'));
+        t.equal(pkg && pkg.name, 'resolve');
+    });
+
+    resolve('./foo', { basedir: dir, 'package': { main: 'resolver' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'foo.js'));
+        t.equal(pkg && pkg.main, 'resolver');
+    });
+
+    resolve('./foo.js', { basedir: dir, 'package': { main: 'resolver' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'foo.js'));
+        t.equal(pkg.main, 'resolver');
+    });
+
+    resolve('./foo', { basedir: dir, filename: path.join(dir, 'baz.js') }, function (err, res) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'foo.js'));
+    });
+
+    resolve('foo', { basedir: dir }, function (err) {
+        t.equal(err.message, "Cannot find module 'foo' from '" + path.resolve(dir) + "'");
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+    });
+
+    // Test that filename is reported as the "from" value when passed.
+    resolve('foo', { basedir: dir, filename: path.join(dir, 'baz.js') }, function (err) {
+        t.equal(err.message, "Cannot find module 'foo' from '" + path.join(dir, 'baz.js') + "'");
+    });
+});
+
+test('bar', function (t) {
+    t.plan(6);
+    var dir = path.join(__dirname, 'resolver');
+
+    resolve('foo', { basedir: dir + '/bar' }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'bar/node_modules/foo/index.js'));
+        t.equal(pkg, undefined);
+    });
+
+    resolve('foo', { basedir: dir + '/bar' }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'bar/node_modules/foo/index.js'));
+        t.equal(pkg, undefined);
+    });
+
+    resolve('foo', { basedir: dir + '/bar', 'package': { main: 'bar' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'bar/node_modules/foo/index.js'));
+        t.equal(pkg.main, 'bar');
+    });
+});
+
+test('baz', function (t) {
+    t.plan(4);
+    var dir = path.join(__dirname, 'resolver');
+
+    resolve('./baz', { basedir: dir }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'baz/quux.js'));
+        t.equal(pkg.main, 'quux.js');
+    });
+
+    resolve('./baz', { basedir: dir, 'package': { main: 'resolver' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'baz/quux.js'));
+        t.equal(pkg.main, 'quux.js');
+    });
+});
+
+test('biz', function (t) {
+    t.plan(24);
+    var dir = path.join(__dirname, 'resolver/biz/node_modules');
+
+    resolve('./grux', { basedir: dir }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'grux/index.js'));
+        t.equal(pkg, undefined);
+    });
+
+    resolve('./grux', { basedir: dir, 'package': { main: 'biz' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'grux/index.js'));
+        t.equal(pkg.main, 'biz');
+    });
+
+    resolve('./garply', { basedir: dir }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'garply/lib/index.js'));
+        t.equal(pkg.main, './lib');
+    });
+
+    resolve('./garply', { basedir: dir, 'package': { main: 'biz' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'garply/lib/index.js'));
+        t.equal(pkg.main, './lib');
+    });
+
+    resolve('tiv', { basedir: dir + '/grux' }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'tiv/index.js'));
+        t.equal(pkg, undefined);
+    });
+
+    resolve('tiv', { basedir: dir + '/grux', 'package': { main: 'grux' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'tiv/index.js'));
+        t.equal(pkg.main, 'grux');
+    });
+
+    resolve('tiv', { basedir: dir + '/garply' }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'tiv/index.js'));
+        t.equal(pkg, undefined);
+    });
+
+    resolve('tiv', { basedir: dir + '/garply', 'package': { main: './lib' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'tiv/index.js'));
+        t.equal(pkg.main, './lib');
+    });
+
+    resolve('grux', { basedir: dir + '/tiv' }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'grux/index.js'));
+        t.equal(pkg, undefined);
+    });
+
+    resolve('grux', { basedir: dir + '/tiv', 'package': { main: 'tiv' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'grux/index.js'));
+        t.equal(pkg.main, 'tiv');
+    });
+
+    resolve('garply', { basedir: dir + '/tiv' }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'garply/lib/index.js'));
+        t.equal(pkg.main, './lib');
+    });
+
+    resolve('garply', { basedir: dir + '/tiv', 'package': { main: 'tiv' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'garply/lib/index.js'));
+        t.equal(pkg.main, './lib');
+    });
+});
+
+test('quux', function (t) {
+    t.plan(2);
+    var dir = path.join(__dirname, 'resolver/quux');
+
+    resolve('./foo', { basedir: dir, 'package': { main: 'quux' } }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'foo/index.js'));
+        t.equal(pkg.main, 'quux');
+    });
+});
+
+test('normalize', function (t) {
+    t.plan(2);
+    var dir = path.join(__dirname, 'resolver/biz/node_modules/grux');
+
+    resolve('../grux', { basedir: dir }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'index.js'));
+        t.equal(pkg, undefined);
+    });
+});
+
+test('cup', function (t) {
+    t.plan(5);
+    var dir = path.join(__dirname, 'resolver');
+
+    resolve('./cup', { basedir: dir, extensions: ['.js', '.coffee'] }, function (err, res) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'cup.coffee'));
+    });
+
+    resolve('./cup.coffee', { basedir: dir }, function (err, res) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'cup.coffee'));
+    });
+
+    resolve('./cup', { basedir: dir, extensions: ['.js'] }, function (err, res) {
+        t.equal(err.message, "Cannot find module './cup' from '" + path.resolve(dir) + "'");
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+    });
+
+    // Test that filename is reported as the "from" value when passed.
+    resolve('./cup', { basedir: dir, extensions: ['.js'], filename: path.join(dir, 'cupboard.js') }, function (err, res) {
+        t.equal(err.message, "Cannot find module './cup' from '" + path.join(dir, 'cupboard.js') + "'");
+    });
+});
+
+test('mug', function (t) {
+    t.plan(3);
+    var dir = path.join(__dirname, 'resolver');
+
+    resolve('./mug', { basedir: dir }, function (err, res) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'mug.js'));
+    });
+
+    resolve('./mug', { basedir: dir, extensions: ['.coffee', '.js'] }, function (err, res) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, '/mug.coffee'));
+    });
+
+    resolve('./mug', { basedir: dir, extensions: ['.js', '.coffee'] }, function (err, res) {
+        t.equal(res, path.join(dir, '/mug.js'));
+    });
+});
+
+test('other path', function (t) {
+    t.plan(6);
+    var resolverDir = path.join(__dirname, 'resolver');
+    var dir = path.join(resolverDir, 'bar');
+    var otherDir = path.join(resolverDir, 'other_path');
+
+    resolve('root', { basedir: dir, paths: [otherDir] }, function (err, res) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(resolverDir, 'other_path/root.js'));
+    });
+
+    resolve('lib/other-lib', { basedir: dir, paths: [otherDir] }, function (err, res) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(resolverDir, 'other_path/lib/other-lib.js'));
+    });
+
+    resolve('root', { basedir: dir }, function (err, res) {
+        t.equal(err.message, "Cannot find module 'root' from '" + path.resolve(dir) + "'");
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+    });
+
+    resolve('zzz', { basedir: dir, paths: [otherDir] }, function (err, res) {
+        t.equal(err.message, "Cannot find module 'zzz' from '" + path.resolve(dir) + "'");
+        t.equal(err.code, 'MODULE_NOT_FOUND');
+    });
+});
+
+test('incorrect main', function (t) {
+    t.plan(1);
+
+    var resolverDir = path.join(__dirname, 'resolver');
+    var dir = path.join(resolverDir, 'incorrect_main');
+
+    resolve('./incorrect_main', { basedir: resolverDir }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'index.js'));
+    });
+});
+
+test('without basedir', function (t) {
+    t.plan(1);
+
+    var dir = path.join(__dirname, 'resolver/without_basedir');
+    var tester = require(path.join(dir, 'main.js'));
+
+    tester(t, function (err, res, pkg) {
+        if (err) {
+            t.fail(err);
+        } else {
+            t.equal(res, path.join(dir, 'node_modules/mymodule.js'));
+        }
+    });
+});
+
+test('#25: node modules with the same name as node stdlib modules', function (t) {
+    t.plan(1);
+
+    var resolverDir = path.join(__dirname, 'resolver/punycode');
+
+    resolve('punycode', { basedir: resolverDir }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(resolverDir, 'node_modules/punycode/index.js'));
+    });
+});
+
+test('#52 - incorrectly resolves module-paths like "./someFolder/" when there is a file of the same name', function (t) {
+    t.plan(2);
+
+    var dir = path.join(__dirname, 'resolver');
+
+    resolve('./foo', { basedir: path.join(dir, 'same_names') }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'same_names/foo.js'));
+    });
+
+    resolve('./foo/', { basedir: path.join(dir, 'same_names') }, function (err, res, pkg) {
+        if (err) t.fail(err);
+        t.equal(res, path.join(dir, 'same_names/foo/index.js'));
+    });
+});
+
+test('async: #121 - treating an existing file as a dir when no basedir', function (t) {
+    var testFile = path.basename(__filename);
+
+    t.test('sanity check', function (st) {
+        st.plan(1);
+        resolve('./' + testFile, function (err, res, pkg) {
+            if (err) t.fail(err);
+            st.equal(res, __filename, 'sanity check');
+        });
+    });
+
+    t.test('with a fake directory', function (st) {
+        st.plan(4);
+
+        resolve('./' + testFile + '/blah', function (err, res, pkg) {
+            st.ok(err, 'there is an error');
+            st.notOk(res, 'no result');
+
+            st.equal(err && err.code, 'MODULE_NOT_FOUND', 'error code matches require.resolve');
+            st.equal(
+                err && err.message,
+                'Cannot find module \'./' + testFile + '/blah\' from \'' + __dirname + '\'',
+                'can not find nonexistent module'
+            );
+            st.end();
+        });
+    });
+
+    t.end();
+});
+
+test('async dot main', function (t) {
+    var start = new Date();
+    t.plan(3);
+    resolve('./resolver/dot_main', function (err, ret) {
+        t.notOk(err);
+        t.equal(ret, path.join(__dirname, 'resolver/dot_main/index.js'));
+        t.ok(new Date() - start < 50, 'resolve.sync timedout');
+        t.end();
+    });
+});
+
+test('async dot slash main', function (t) {
+    var start = new Date();
+    t.plan(3);
+    resolve('./resolver/dot_slash_main', function (err, ret) {
+        t.notOk(err);
+        t.equal(ret, path.join(__dirname, 'resolver/dot_slash_main/index.js'));
+        t.ok(new Date() - start < 50, 'resolve.sync timedout');
+        t.end();
+    });
+});
+
+test('not a directory', function (t) {
+    t.plan(6);
+    var path = './foo';
+    resolve(path, { basedir: __filename }, function (err, res, pkg) {
+        t.ok(err, 'a non-directory errors');
+        t.equal(arguments.length, 1);
+        t.equal(res, undefined);
+        t.equal(pkg, undefined);
+
+        t.equal(err && err.message, 'Cannot find module \'' + path + '\' from \'' + __filename + '\'');
+        t.equal(err && err.code, 'MODULE_NOT_FOUND');
+    });
+});
+
+test('non-string "main" field in package.json', function (t) {
+    t.plan(5);
+
+    var dir = path.join(__dirname, 'resolver');
+    resolve('./invalid_main', { basedir: dir }, function (err, res, pkg) {
+        t.ok(err, 'errors on non-string main');
+        t.equal(err.message, 'package “invalid main” `main` must be a string');
+        t.equal(err.code, 'INVALID_PACKAGE_MAIN');
+        t.equal(res, undefined, 'res is undefined');
+        t.equal(pkg, undefined, 'pkg is undefined');
+    });
+});
+
+test('non-string "main" field in package.json', function (t) {
+    t.plan(5);
+
+    var dir = path.join(__dirname, 'resolver');
+    resolve('./invalid_main', { basedir: dir }, function (err, res, pkg) {
+        t.ok(err, 'errors on non-string main');
+        t.equal(err.message, 'package “invalid main” `main` must be a string');
+        t.equal(err.code, 'INVALID_PACKAGE_MAIN');
+        t.equal(res, undefined, 'res is undefined');
+        t.equal(pkg, undefined, 'pkg is undefined');
+    });
+});
+
+test('browser field in package.json', function (t) {
+    t.plan(3);
+
+    var dir = path.join(__dirname, 'resolver');
+    resolve(
+        './browser_field',
+        {
+            basedir: dir,
+            packageFilter: function packageFilter(pkg) {
+                if (pkg.browser) {
+                    pkg.main = pkg.browser;
+                    delete pkg.browser;
+                }
+                return pkg;
+            }
+        },
+        function (err, res, pkg) {
+            if (err) t.fail(err);
+            t.equal(res, path.join(dir, 'browser_field', 'b.js'));
+            t.equal(pkg && pkg.main, 'b');
+            t.equal(pkg && pkg.browser, undefined);
+        }
+    );
+});
diff --git a/helloworld/node_modules/resolve/test/resolver/baz/doom.js b/helloworld/node_modules/resolve/test/resolver/baz/doom.js
new file mode 100755
index 0000000..e69de29
diff --git a/helloworld/node_modules/resolve/test/resolver/baz/package.json b/helloworld/node_modules/resolve/test/resolver/baz/package.json
new file mode 100755
index 0000000..c41e4db
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/baz/package.json
@@ -0,0 +1,3 @@
+{
+    "main": "quux.js"
+}
diff --git a/helloworld/node_modules/resolve/test/resolver/baz/quux.js b/helloworld/node_modules/resolve/test/resolver/baz/quux.js
new file mode 100755
index 0000000..bd816ea
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/baz/quux.js
@@ -0,0 +1 @@
+module.exports = 1;
diff --git a/helloworld/node_modules/resolve/test/resolver/browser_field/a.js b/helloworld/node_modules/resolve/test/resolver/browser_field/a.js
new file mode 100755
index 0000000..e69de29
diff --git a/helloworld/node_modules/resolve/test/resolver/browser_field/b.js b/helloworld/node_modules/resolve/test/resolver/browser_field/b.js
new file mode 100755
index 0000000..e69de29
diff --git a/helloworld/node_modules/resolve/test/resolver/browser_field/package.json b/helloworld/node_modules/resolve/test/resolver/browser_field/package.json
new file mode 100755
index 0000000..bf406f0
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/browser_field/package.json
@@ -0,0 +1,5 @@
+{
+  "name": "browser_field",
+  "main": "a",
+  "browser": "b"
+}
diff --git a/helloworld/node_modules/resolve/test/resolver/cup.coffee b/helloworld/node_modules/resolve/test/resolver/cup.coffee
new file mode 100755
index 0000000..8b13789
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/cup.coffee
@@ -0,0 +1 @@
+
diff --git a/helloworld/node_modules/resolve/test/resolver/dot_main/index.js b/helloworld/node_modules/resolve/test/resolver/dot_main/index.js
new file mode 100755
index 0000000..bd816ea
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/dot_main/index.js
@@ -0,0 +1 @@
+module.exports = 1;
diff --git a/helloworld/node_modules/resolve/test/resolver/dot_main/package.json b/helloworld/node_modules/resolve/test/resolver/dot_main/package.json
new file mode 100755
index 0000000..d7f4fc8
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/dot_main/package.json
@@ -0,0 +1,3 @@
+{
+    "main": "."
+}
diff --git a/helloworld/node_modules/resolve/test/resolver/dot_slash_main/index.js b/helloworld/node_modules/resolve/test/resolver/dot_slash_main/index.js
new file mode 100755
index 0000000..bd816ea
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/dot_slash_main/index.js
@@ -0,0 +1 @@
+module.exports = 1;
diff --git a/helloworld/node_modules/resolve/test/resolver/dot_slash_main/package.json b/helloworld/node_modules/resolve/test/resolver/dot_slash_main/package.json
new file mode 100755
index 0000000..f51287b
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/dot_slash_main/package.json
@@ -0,0 +1,3 @@
+{
+    "main": "./"
+}
diff --git a/helloworld/node_modules/resolve/test/resolver/foo.js b/helloworld/node_modules/resolve/test/resolver/foo.js
new file mode 100755
index 0000000..bd816ea
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/foo.js
@@ -0,0 +1 @@
+module.exports = 1;
diff --git a/helloworld/node_modules/resolve/test/resolver/incorrect_main/index.js b/helloworld/node_modules/resolve/test/resolver/incorrect_main/index.js
new file mode 100755
index 0000000..bc1fb0a
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/incorrect_main/index.js
@@ -0,0 +1,2 @@
+// this is the actual main file 'index.js', not 'wrong.js' like the package.json would indicate
+module.exports = 1;
diff --git a/helloworld/node_modules/resolve/test/resolver/incorrect_main/package.json b/helloworld/node_modules/resolve/test/resolver/incorrect_main/package.json
new file mode 100755
index 0000000..b718804
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/incorrect_main/package.json
@@ -0,0 +1,3 @@
+{
+    "main": "wrong.js"
+}
diff --git a/helloworld/node_modules/resolve/test/resolver/invalid_main/package.json b/helloworld/node_modules/resolve/test/resolver/invalid_main/package.json
new file mode 100755
index 0000000..0cf8279
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/invalid_main/package.json
@@ -0,0 +1,7 @@
+{
+  "name": "invalid main",
+  "main": [
+    "why is this a thing",
+    "srsly omg wtf"
+  ]
+}
diff --git a/helloworld/node_modules/resolve/test/resolver/mug.coffee b/helloworld/node_modules/resolve/test/resolver/mug.coffee
new file mode 100755
index 0000000..e69de29
diff --git a/helloworld/node_modules/resolve/test/resolver/mug.js b/helloworld/node_modules/resolve/test/resolver/mug.js
new file mode 100755
index 0000000..e69de29
diff --git a/helloworld/node_modules/resolve/test/resolver/multirepo/lerna.json b/helloworld/node_modules/resolve/test/resolver/multirepo/lerna.json
new file mode 100755
index 0000000..d6707ca
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/multirepo/lerna.json
@@ -0,0 +1,6 @@
+{
+  "packages": [
+    "packages/*"
+  ],
+  "version": "0.0.0"
+}
diff --git a/helloworld/node_modules/resolve/test/resolver/multirepo/package.json b/helloworld/node_modules/resolve/test/resolver/multirepo/package.json
new file mode 100755
index 0000000..8508f9d
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/multirepo/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "monorepo-symlink-test",
+  "private": true,
+  "version": "0.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "postinstall": "lerna bootstrap",
+    "test": "node packages/package-a"
+  },
+  "author": "",
+  "license": "MIT",
+  "dependencies": {
+    "jquery": "^3.3.1",
+    "resolve": "../../../"
+  },
+  "devDependencies": {
+    "lerna": "^3.4.3"
+  }
+}
diff --git a/helloworld/node_modules/resolve/test/resolver/multirepo/packages/package-a/index.js b/helloworld/node_modules/resolve/test/resolver/multirepo/packages/package-a/index.js
new file mode 100755
index 0000000..8875a32
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/multirepo/packages/package-a/index.js
@@ -0,0 +1,35 @@
+'use strict';
+
+var assert = require('assert');
+var path = require('path');
+var resolve = require('resolve');
+
+var basedir = __dirname + '/node_modules/@my-scope/package-b';
+
+var expected = path.join(__dirname, '../../node_modules/jquery/dist/jquery.js');
+
+/*
+ * preserveSymlinks === false
+ * will search NPM package from
+ * - packages/package-b/node_modules
+ * - packages/node_modules
+ * - node_modules
+ */
+assert.equal(resolve.sync('jquery', { basedir: basedir, preserveSymlinks: false }), expected);
+assert.equal(resolve.sync('../../node_modules/jquery', { basedir: basedir, preserveSymlinks: false }), expected);
+
+/*
+ * preserveSymlinks === true
+ * will search NPM package from
+ * - packages/package-a/node_modules/@my-scope/packages/package-b/node_modules
+ * - packages/package-a/node_modules/@my-scope/packages/node_modules
+ * - packages/package-a/node_modules/@my-scope/node_modules
+ * - packages/package-a/node_modules/node_modules
+ * - packages/package-a/node_modules
+ * - packages/node_modules
+ * - node_modules
+ */
+assert.equal(resolve.sync('jquery', { basedir: basedir, preserveSymlinks: true }), expected);
+assert.equal(resolve.sync('../../../../../node_modules/jquery', { basedir: basedir, preserveSymlinks: true }), expected);
+
+console.log(' * all monorepo paths successfully resolved through symlinks');
diff --git a/helloworld/node_modules/resolve/test/resolver/multirepo/packages/package-a/package.json b/helloworld/node_modules/resolve/test/resolver/multirepo/packages/package-a/package.json
new file mode 100755
index 0000000..204de51
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/multirepo/packages/package-a/package.json
@@ -0,0 +1,14 @@
+{
+  "name": "@my-scope/package-a",
+  "version": "0.0.0",
+  "private": true,
+  "description": "",
+  "license": "MIT",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: run tests from root\" && exit 1"
+  },
+  "dependencies": {
+    "@my-scope/package-b": "^0.0.0"
+  }
+}
diff --git a/helloworld/node_modules/resolve/test/resolver/multirepo/packages/package-b/index.js b/helloworld/node_modules/resolve/test/resolver/multirepo/packages/package-b/index.js
new file mode 100755
index 0000000..e69de29
diff --git a/helloworld/node_modules/resolve/test/resolver/multirepo/packages/package-b/package.json b/helloworld/node_modules/resolve/test/resolver/multirepo/packages/package-b/package.json
new file mode 100755
index 0000000..f57c3b5
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/multirepo/packages/package-b/package.json
@@ -0,0 +1,14 @@
+{
+  "name": "@my-scope/package-b",
+  "private": true,
+  "version": "0.0.0",
+  "description": "",
+  "license": "MIT",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: run tests from root\" && exit 1"
+  },
+  "dependencies": {
+    "@my-scope/package-a": "^0.0.0"
+  }
+}
diff --git a/helloworld/node_modules/resolve/test/resolver/other_path/lib/other-lib.js b/helloworld/node_modules/resolve/test/resolver/other_path/lib/other-lib.js
new file mode 100755
index 0000000..e69de29
diff --git a/helloworld/node_modules/resolve/test/resolver/other_path/root.js b/helloworld/node_modules/resolve/test/resolver/other_path/root.js
new file mode 100755
index 0000000..e69de29
diff --git a/helloworld/node_modules/resolve/test/resolver/quux/foo/index.js b/helloworld/node_modules/resolve/test/resolver/quux/foo/index.js
new file mode 100755
index 0000000..bd816ea
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/quux/foo/index.js
@@ -0,0 +1 @@
+module.exports = 1;
diff --git a/helloworld/node_modules/resolve/test/resolver/same_names/foo.js b/helloworld/node_modules/resolve/test/resolver/same_names/foo.js
new file mode 100755
index 0000000..888cae3
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/same_names/foo.js
@@ -0,0 +1 @@
+module.exports = 42;
diff --git a/helloworld/node_modules/resolve/test/resolver/same_names/foo/index.js b/helloworld/node_modules/resolve/test/resolver/same_names/foo/index.js
new file mode 100755
index 0000000..bd816ea
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/same_names/foo/index.js
@@ -0,0 +1 @@
+module.exports = 1;
diff --git a/helloworld/node_modules/resolve/test/resolver/without_basedir/main.js b/helloworld/node_modules/resolve/test/resolver/without_basedir/main.js
new file mode 100755
index 0000000..5b31975
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver/without_basedir/main.js
@@ -0,0 +1,5 @@
+var resolve = require('../../../');
+
+module.exports = function (t, cb) {
+    resolve('mymodule', null, cb);
+};
diff --git a/helloworld/node_modules/resolve/test/resolver_sync.js b/helloworld/node_modules/resolve/test/resolver_sync.js
new file mode 100755
index 0000000..f331439
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/resolver_sync.js
@@ -0,0 +1,340 @@
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('foo', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+
+    t.equal(
+        resolve.sync('./foo', { basedir: dir }),
+        path.join(dir, 'foo.js')
+    );
+
+    t.equal(
+        resolve.sync('./foo.js', { basedir: dir }),
+        path.join(dir, 'foo.js')
+    );
+
+    t.equal(
+        resolve.sync('./foo.js', { basedir: dir, filename: path.join(dir, 'bar.js') }),
+        path.join(dir, 'foo.js')
+    );
+
+    t.throws(function () {
+        resolve.sync('foo', { basedir: dir });
+    });
+
+    // Test that filename is reported as the "from" value when passed.
+    t.throws(
+        function () {
+            resolve.sync('foo', { basedir: dir, filename: path.join(dir, 'bar.js') });
+        },
+        {
+            name: 'Error',
+            message: "Cannot find module 'foo' from '" + path.join(dir, 'bar.js') + "'"
+        }
+    );
+
+    t.end();
+});
+
+test('bar', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+
+    t.equal(
+        resolve.sync('foo', { basedir: path.join(dir, 'bar') }),
+        path.join(dir, 'bar/node_modules/foo/index.js')
+    );
+    t.end();
+});
+
+test('baz', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+
+    t.equal(
+        resolve.sync('./baz', { basedir: dir }),
+        path.join(dir, 'baz/quux.js')
+    );
+    t.end();
+});
+
+test('biz', function (t) {
+    var dir = path.join(__dirname, 'resolver/biz/node_modules');
+    t.equal(
+        resolve.sync('./grux', { basedir: dir }),
+        path.join(dir, 'grux/index.js')
+    );
+
+    t.equal(
+        resolve.sync('tiv', { basedir: path.join(dir, 'grux') }),
+        path.join(dir, 'tiv/index.js')
+    );
+
+    t.equal(
+        resolve.sync('grux', { basedir: path.join(dir, 'tiv') }),
+        path.join(dir, 'grux/index.js')
+    );
+    t.end();
+});
+
+test('normalize', function (t) {
+    var dir = path.join(__dirname, 'resolver/biz/node_modules/grux');
+    t.equal(
+        resolve.sync('../grux', { basedir: dir }),
+        path.join(dir, 'index.js')
+    );
+    t.end();
+});
+
+test('cup', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+    t.equal(
+        resolve.sync('./cup', {
+            basedir: dir,
+            extensions: ['.js', '.coffee']
+        }),
+        path.join(dir, 'cup.coffee')
+    );
+
+    t.equal(
+        resolve.sync('./cup.coffee', { basedir: dir }),
+        path.join(dir, 'cup.coffee')
+    );
+
+    t.throws(function () {
+        resolve.sync('./cup', {
+            basedir: dir,
+            extensions: ['.js']
+        });
+    });
+
+    t.end();
+});
+
+test('mug', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+    t.equal(
+        resolve.sync('./mug', { basedir: dir }),
+        path.join(dir, 'mug.js')
+    );
+
+    t.equal(
+        resolve.sync('./mug', {
+            basedir: dir,
+            extensions: ['.coffee', '.js']
+        }),
+        path.join(dir, 'mug.coffee')
+    );
+
+    t.equal(
+        resolve.sync('./mug', {
+            basedir: dir,
+            extensions: ['.js', '.coffee']
+        }),
+        path.join(dir, 'mug.js')
+    );
+
+    t.end();
+});
+
+test('other path', function (t) {
+    var resolverDir = path.join(__dirname, 'resolver');
+    var dir = path.join(resolverDir, 'bar');
+    var otherDir = path.join(resolverDir, 'other_path');
+
+    t.equal(
+        resolve.sync('root', {
+            basedir: dir,
+            paths: [otherDir]
+        }),
+        path.join(resolverDir, 'other_path/root.js')
+    );
+
+    t.equal(
+        resolve.sync('lib/other-lib', {
+            basedir: dir,
+            paths: [otherDir]
+        }),
+        path.join(resolverDir, 'other_path/lib/other-lib.js')
+    );
+
+    t.throws(function () {
+        resolve.sync('root', { basedir: dir });
+    });
+
+    t.throws(function () {
+        resolve.sync('zzz', {
+            basedir: dir,
+            paths: [otherDir]
+        });
+    });
+
+    t.end();
+});
+
+test('incorrect main', function (t) {
+    var resolverDir = path.join(__dirname, 'resolver');
+    var dir = path.join(resolverDir, 'incorrect_main');
+
+    t.equal(
+        resolve.sync('./incorrect_main', { basedir: resolverDir }),
+        path.join(dir, 'index.js')
+    );
+
+    t.end();
+});
+
+test('#25: node modules with the same name as node stdlib modules', function (t) {
+    var resolverDir = path.join(__dirname, 'resolver/punycode');
+
+    t.equal(
+        resolve.sync('punycode', { basedir: resolverDir }),
+        path.join(resolverDir, 'node_modules/punycode/index.js')
+    );
+
+    t.end();
+});
+
+var stubStatSync = function stubStatSync(fn) {
+    var fs = require('fs');
+    var statSync = fs.statSync;
+    try {
+        fs.statSync = function () {
+            throw new EvalError('Unknown Error');
+        };
+        return fn();
+    } finally {
+        fs.statSync = statSync;
+    }
+};
+
+test('#79 - re-throw non ENOENT errors from stat', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+
+    stubStatSync(function () {
+        t.throws(function () {
+            resolve.sync('foo', { basedir: dir });
+        }, /Unknown Error/);
+    });
+
+    t.end();
+});
+
+test('#52 - incorrectly resolves module-paths like "./someFolder/" when there is a file of the same name', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+
+    t.equal(
+        resolve.sync('./foo', { basedir: path.join(dir, 'same_names') }),
+        path.join(dir, 'same_names/foo.js')
+    );
+    t.equal(
+        resolve.sync('./foo/', { basedir: path.join(dir, 'same_names') }),
+        path.join(dir, 'same_names/foo/index.js')
+    );
+    t.end();
+});
+
+test('sync: #121 - treating an existing file as a dir when no basedir', function (t) {
+    var testFile = path.basename(__filename);
+
+    t.test('sanity check', function (st) {
+        st.equal(
+            resolve.sync('./' + testFile),
+            __filename,
+            'sanity check'
+        );
+        st.end();
+    });
+
+    t.test('with a fake directory', function (st) {
+        function run() { return resolve.sync('./' + testFile + '/blah'); }
+
+        st.throws(run, 'throws an error');
+
+        try {
+            run();
+        } catch (e) {
+            st.equal(e.code, 'MODULE_NOT_FOUND', 'error code matches require.resolve');
+            st.equal(
+                e.message,
+                'Cannot find module \'./' + testFile + '/blah\' from \'' + __dirname + '\'',
+                'can not find nonexistent module'
+            );
+        }
+
+        st.end();
+    });
+
+    t.end();
+});
+
+test('sync dot main', function (t) {
+    var start = new Date();
+    t.equal(resolve.sync('./resolver/dot_main'), path.join(__dirname, 'resolver/dot_main/index.js'));
+    t.ok(new Date() - start < 50, 'resolve.sync timedout');
+    t.end();
+});
+
+test('sync dot slash main', function (t) {
+    var start = new Date();
+    t.equal(resolve.sync('./resolver/dot_slash_main'), path.join(__dirname, 'resolver/dot_slash_main/index.js'));
+    t.ok(new Date() - start < 50, 'resolve.sync timedout');
+    t.end();
+});
+
+test('not a directory', function (t) {
+    var path = './foo';
+    try {
+        resolve.sync(path, { basedir: __filename });
+        t.fail();
+    } catch (err) {
+        t.ok(err, 'a non-directory errors');
+        t.equal(err && err.message, 'Cannot find module \'' + path + "' from '" + __filename + "'");
+        t.equal(err && err.code, 'MODULE_NOT_FOUND');
+    }
+    t.end();
+});
+
+test('non-string "main" field in package.json', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+    try {
+        var result = resolve.sync('./invalid_main', { basedir: dir });
+        t.equal(result, undefined, 'result should not exist');
+        t.fail('should not get here');
+    } catch (err) {
+        t.ok(err, 'errors on non-string main');
+        t.equal(err.message, 'package “invalid main” `main` must be a string');
+        t.equal(err.code, 'INVALID_PACKAGE_MAIN');
+    }
+    t.end();
+});
+
+test('non-string "main" field in package.json', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+    try {
+        var result = resolve.sync('./invalid_main', { basedir: dir });
+        t.equal(result, undefined, 'result should not exist');
+        t.fail('should not get here');
+    } catch (err) {
+        t.ok(err, 'errors on non-string main');
+        t.equal(err.message, 'package “invalid main” `main` must be a string');
+        t.equal(err.code, 'INVALID_PACKAGE_MAIN');
+    }
+    t.end();
+});
+
+test('browser field in package.json', function (t) {
+    var dir = path.join(__dirname, 'resolver');
+    var res = resolve.sync('./browser_field', {
+        basedir: dir,
+        packageFilter: function packageFilter(pkg) {
+            if (pkg.browser) {
+                pkg.main = pkg.browser;
+                delete pkg.browser;
+            }
+            return pkg;
+        }
+    });
+    t.equal(res, path.join(dir, 'browser_field', 'b.js'));
+    t.end();
+});
diff --git a/helloworld/node_modules/resolve/test/subdirs.js b/helloworld/node_modules/resolve/test/subdirs.js
new file mode 100755
index 0000000..b7b8450
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/subdirs.js
@@ -0,0 +1,13 @@
+var test = require('tape');
+var resolve = require('../');
+var path = require('path');
+
+test('subdirs', function (t) {
+    t.plan(2);
+
+    var dir = path.join(__dirname, '/subdirs');
+    resolve('a/b/c/x.json', { basedir: dir }, function (err, res) {
+        t.ifError(err);
+        t.equal(res, path.join(dir, 'node_modules/a/b/c/x.json'));
+    });
+});
diff --git a/helloworld/node_modules/resolve/test/symlinks.js b/helloworld/node_modules/resolve/test/symlinks.js
new file mode 100755
index 0000000..ea95a1e
--- /dev/null
+++ b/helloworld/node_modules/resolve/test/symlinks.js
@@ -0,0 +1,56 @@
+var path = require('path');
+var fs = require('fs');
+var test = require('tape');
+var resolve = require('../');
+
+var symlinkDir = path.join(__dirname, 'resolver', 'symlinked', 'symlink');
+try {
+    fs.unlinkSync(symlinkDir);
+} catch (err) {}
+try {
+    fs.symlinkSync('./_/symlink_target', symlinkDir, 'dir');
+} catch (err) {
+    // if fails then it is probably on Windows and lets try to create a junction
+    fs.symlinkSync(path.join(__dirname, 'resolver', 'symlinked', '_', 'symlink_target') + '\\', symlinkDir, 'junction');
+}
+
+test('symlink', function (t) {
+    t.plan(2);
+
+    resolve('foo', { basedir: symlinkDir, preserveSymlinks: false }, function (err, res, pkg) {
+        t.error(err);
+        t.equal(res, path.join(__dirname, 'resolver', 'symlinked', '_', 'node_modules', 'foo.js'));
+    });
+});
+
+test('sync symlink when preserveSymlinks = true', function (t) {
+    t.plan(4);
+
+    resolve('foo', { basedir: symlinkDir }, function (err, res, pkg) {
+        t.ok(err, 'there is an error');
+        t.notOk(res, 'no result');
+
+        t.equal(err && err.code, 'MODULE_NOT_FOUND', 'error code matches require.resolve');
+        t.equal(
+            err && err.message,
+            'Cannot find module \'foo\' from \'' + symlinkDir + '\'',
+            'can not find nonexistent module'
+        );
+    });
+});
+
+test('sync symlink', function (t) {
+    var start = new Date();
+    t.doesNotThrow(function () {
+        t.equal(resolve.sync('foo', { basedir: symlinkDir, preserveSymlinks: false }), path.join(__dirname, 'resolver', 'symlinked', '_', 'node_modules', 'foo.js'));
+    });
+    t.ok(new Date() - start < 50, 'resolve.sync timedout');
+    t.end();
+});
+
+test('sync symlink when preserveSymlinks = true', function (t) {
+    t.throws(function () {
+        resolve.sync('foo', { basedir: symlinkDir });
+    }, /Cannot find module 'foo'/);
+    t.end();
+});
diff --git a/helloworld/node_modules/responselike/LICENSE b/helloworld/node_modules/responselike/LICENSE
new file mode 100755
index 0000000..8829a00
--- /dev/null
+++ b/helloworld/node_modules/responselike/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2017 Luke Childs
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/responselike/README.md b/helloworld/node_modules/responselike/README.md
new file mode 100755
index 0000000..6361931
--- /dev/null
+++ b/helloworld/node_modules/responselike/README.md
@@ -0,0 +1,77 @@
+# responselike
+
+> A response-like object for mocking a Node.js HTTP response stream
+
+[![Build Status](https://travis-ci.org/lukechilds/responselike.svg?branch=master)](https://travis-ci.org/lukechilds/responselike)
+[![Coverage Status](https://coveralls.io/repos/github/lukechilds/responselike/badge.svg?branch=master)](https://coveralls.io/github/lukechilds/responselike?branch=master)
+[![npm](https://img.shields.io/npm/dm/responselike.svg)](https://www.npmjs.com/package/responselike)
+[![npm](https://img.shields.io/npm/v/responselike.svg)](https://www.npmjs.com/package/responselike)
+
+Returns a streamable response object similar to a [Node.js HTTP response stream](https://nodejs.org/api/http.html#http_class_http_incomingmessage). Useful for formatting cached responses so they can be consumed by code expecting a real response.
+
+## Install
+
+```shell
+npm install --save responselike
+```
+
+Or if you're just using for testing you'll want:
+
+```shell
+npm install --save-dev responselike
+```
+
+## Usage
+
+```js
+const Response = require('responselike');
+
+const response = new Response(200, { foo: 'bar' }, Buffer.from('Hi!'), 'https://example.com');
+
+response.statusCode;
+// 200
+response.headers;
+// { foo: 'bar' }
+response.body;
+// <Buffer 48 69 21>
+response.url;
+// 'https://example.com'
+
+response.pipe(process.stdout);
+// Hi!
+```
+
+
+## API
+
+### new Response(statusCode, headers, body, url)
+
+Returns a streamable response object similar to a [Node.js HTTP response stream](https://nodejs.org/api/http.html#http_class_http_incomingmessage).
+
+#### statusCode
+
+Type: `number`
+
+HTTP response status code.
+
+#### headers
+
+Type: `object`
+
+HTTP headers object. Keys will be automatically lowercased.
+
+#### body
+
+Type: `buffer`
+
+A Buffer containing the response body. The Buffer contents will be streamable but is also exposed directly as `response.body`.
+
+#### url
+
+Type: `string`
+
+Request URL string.
+
+## License
+
+MIT © Luke Childs
diff --git a/helloworld/node_modules/responselike/package.json b/helloworld/node_modules/responselike/package.json
new file mode 100755
index 0000000..acdf9ff
--- /dev/null
+++ b/helloworld/node_modules/responselike/package.json
@@ -0,0 +1,69 @@
+{
+  "_from": "responselike@^1.0.2",
+  "_id": "responselike@1.0.2",
+  "_inBundle": false,
+  "_integrity": "sha1-kYcg7ztjHFZCvgaPFa3lpG9Loec=",
+  "_location": "/responselike",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "responselike@^1.0.2",
+    "name": "responselike",
+    "escapedName": "responselike",
+    "rawSpec": "^1.0.2",
+    "saveSpec": null,
+    "fetchSpec": "^1.0.2"
+  },
+  "_requiredBy": [
+    "/cacheable-request"
+  ],
+  "_resolved": "https://registry.npmjs.org/responselike/-/responselike-1.0.2.tgz",
+  "_shasum": "918720ef3b631c5642be068f15ade5a46f4ba1e7",
+  "_spec": "responselike@^1.0.2",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/cacheable-request",
+  "author": {
+    "name": "lukechilds"
+  },
+  "bugs": {
+    "url": "https://github.com/lukechilds/responselike/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "lowercase-keys": "^1.0.0"
+  },
+  "deprecated": false,
+  "description": "A response-like object for mocking a Node.js HTTP response stream",
+  "devDependencies": {
+    "ava": "^0.22.0",
+    "coveralls": "^2.13.1",
+    "eslint-config-xo-lukechilds": "^1.0.0",
+    "get-stream": "^3.0.0",
+    "nyc": "^11.1.0",
+    "xo": "^0.19.0"
+  },
+  "homepage": "https://github.com/lukechilds/responselike#readme",
+  "keywords": [
+    "http",
+    "https",
+    "response",
+    "mock",
+    "request",
+    "responselike"
+  ],
+  "license": "MIT",
+  "main": "src/index.js",
+  "name": "responselike",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/lukechilds/responselike.git"
+  },
+  "scripts": {
+    "coverage": "nyc report --reporter=text-lcov | coveralls",
+    "test": "xo && nyc ava"
+  },
+  "version": "1.0.2",
+  "xo": {
+    "extends": "xo-lukechilds"
+  }
+}
diff --git a/helloworld/node_modules/responselike/src/index.js b/helloworld/node_modules/responselike/src/index.js
new file mode 100755
index 0000000..b17b481
--- /dev/null
+++ b/helloworld/node_modules/responselike/src/index.js
@@ -0,0 +1,34 @@
+'use strict';
+
+const Readable = require('stream').Readable;
+const lowercaseKeys = require('lowercase-keys');
+
+class Response extends Readable {
+	constructor(statusCode, headers, body, url) {
+		if (typeof statusCode !== 'number') {
+			throw new TypeError('Argument `statusCode` should be a number');
+		}
+		if (typeof headers !== 'object') {
+			throw new TypeError('Argument `headers` should be an object');
+		}
+		if (!(body instanceof Buffer)) {
+			throw new TypeError('Argument `body` should be a buffer');
+		}
+		if (typeof url !== 'string') {
+			throw new TypeError('Argument `url` should be a string');
+		}
+
+		super();
+		this.statusCode = statusCode;
+		this.headers = lowercaseKeys(headers);
+		this.body = body;
+		this.url = url;
+	}
+
+	_read() {
+		this.push(this.body);
+		this.push(null);
+	}
+}
+
+module.exports = Response;
diff --git a/helloworld/node_modules/semver/CHANGELOG.md b/helloworld/node_modules/semver/CHANGELOG.md
new file mode 100755
index 0000000..66304fd
--- /dev/null
+++ b/helloworld/node_modules/semver/CHANGELOG.md
@@ -0,0 +1,39 @@
+# changes log
+
+## 5.7
+
+* Add `minVersion` method
+
+## 5.6
+
+* Move boolean `loose` param to an options object, with
+  backwards-compatibility protection.
+* Add ability to opt out of special prerelease version handling with
+  the `includePrerelease` option flag.
+
+## 5.5
+
+* Add version coercion capabilities
+
+## 5.4
+
+* Add intersection checking
+
+## 5.3
+
+* Add `minSatisfying` method
+
+## 5.2
+
+* Add `prerelease(v)` that returns prerelease components
+
+## 5.1
+
+* Add Backus-Naur for ranges
+* Remove excessively cute inspection methods
+
+## 5.0
+
+* Remove AMD/Browserified build artifacts
+* Fix ltr and gtr when using the `*` range
+* Fix for range `*` with a prerelease identifier
diff --git a/helloworld/node_modules/semver/LICENSE b/helloworld/node_modules/semver/LICENSE
new file mode 100755
index 0000000..19129e3
--- /dev/null
+++ b/helloworld/node_modules/semver/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/helloworld/node_modules/semver/README.md b/helloworld/node_modules/semver/README.md
new file mode 100755
index 0000000..e5ccece
--- /dev/null
+++ b/helloworld/node_modules/semver/README.md
@@ -0,0 +1,411 @@
+semver(1) -- The semantic versioner for npm
+===========================================
+
+## Install
+
+```bash
+npm install --save semver
+````
+
+## Usage
+
+As a node module:
+
+```js
+const semver = require('semver')
+
+semver.valid('1.2.3') // '1.2.3'
+semver.valid('a.b.c') // null
+semver.clean('  =v1.2.3   ') // '1.2.3'
+semver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true
+semver.gt('1.2.3', '9.8.7') // false
+semver.lt('1.2.3', '9.8.7') // true
+semver.minVersion('>=1.0.0') // '1.0.0'
+semver.valid(semver.coerce('v2')) // '2.0.0'
+semver.valid(semver.coerce('42.6.7.9.3-alpha')) // '42.6.7'
+```
+
+As a command-line utility:
+
+```
+$ semver -h
+
+A JavaScript implementation of the https://semver.org/ specification
+Copyright Isaac Z. Schlueter
+
+Usage: semver [options] <version> [<version> [...]]
+Prints valid versions sorted by SemVer precedence
+
+Options:
+-r --range <range>
+        Print versions that match the specified range.
+
+-i --increment [<level>]
+        Increment a version by the specified level.  Level can
+        be one of: major, minor, patch, premajor, preminor,
+        prepatch, or prerelease.  Default level is 'patch'.
+        Only one version may be specified.
+
+--preid <identifier>
+        Identifier to be used to prefix premajor, preminor,
+        prepatch or prerelease version increments.
+
+-l --loose
+        Interpret versions and ranges loosely
+
+-p --include-prerelease
+        Always include prerelease versions in range matching
+
+-c --coerce
+        Coerce a string into SemVer if possible
+        (does not imply --loose)
+
+Program exits successfully if any valid version satisfies
+all supplied ranges, and prints all satisfying versions.
+
+If no satisfying versions are found, then exits failure.
+
+Versions are printed in ascending order, so supplying
+multiple versions to the utility will just sort them.
+```
+
+## Versions
+
+A "version" is described by the `v2.0.0` specification found at
+<https://semver.org/>.
+
+A leading `"="` or `"v"` character is stripped off and ignored.
+
+## Ranges
+
+A `version range` is a set of `comparators` which specify versions
+that satisfy the range.
+
+A `comparator` is composed of an `operator` and a `version`.  The set
+of primitive `operators` is:
+
+* `<` Less than
+* `<=` Less than or equal to
+* `>` Greater than
+* `>=` Greater than or equal to
+* `=` Equal.  If no operator is specified, then equality is assumed,
+  so this operator is optional, but MAY be included.
+
+For example, the comparator `>=1.2.7` would match the versions
+`1.2.7`, `1.2.8`, `2.5.3`, and `1.3.9`, but not the versions `1.2.6`
+or `1.1.0`.
+
+Comparators can be joined by whitespace to form a `comparator set`,
+which is satisfied by the **intersection** of all of the comparators
+it includes.
+
+A range is composed of one or more comparator sets, joined by `||`.  A
+version matches a range if and only if every comparator in at least
+one of the `||`-separated comparator sets is satisfied by the version.
+
+For example, the range `>=1.2.7 <1.3.0` would match the versions
+`1.2.7`, `1.2.8`, and `1.2.99`, but not the versions `1.2.6`, `1.3.0`,
+or `1.1.0`.
+
+The range `1.2.7 || >=1.2.9 <2.0.0` would match the versions `1.2.7`,
+`1.2.9`, and `1.4.6`, but not the versions `1.2.8` or `2.0.0`.
+
+### Prerelease Tags
+
+If a version has a prerelease tag (for example, `1.2.3-alpha.3`) then
+it will only be allowed to satisfy comparator sets if at least one
+comparator with the same `[major, minor, patch]` tuple also has a
+prerelease tag.
+
+For example, the range `>1.2.3-alpha.3` would be allowed to match the
+version `1.2.3-alpha.7`, but it would *not* be satisfied by
+`3.4.5-alpha.9`, even though `3.4.5-alpha.9` is technically "greater
+than" `1.2.3-alpha.3` according to the SemVer sort rules.  The version
+range only accepts prerelease tags on the `1.2.3` version.  The
+version `3.4.5` *would* satisfy the range, because it does not have a
+prerelease flag, and `3.4.5` is greater than `1.2.3-alpha.7`.
+
+The purpose for this behavior is twofold.  First, prerelease versions
+frequently are updated very quickly, and contain many breaking changes
+that are (by the author's design) not yet fit for public consumption.
+Therefore, by default, they are excluded from range matching
+semantics.
+
+Second, a user who has opted into using a prerelease version has
+clearly indicated the intent to use *that specific* set of
+alpha/beta/rc versions.  By including a prerelease tag in the range,
+the user is indicating that they are aware of the risk.  However, it
+is still not appropriate to assume that they have opted into taking a
+similar risk on the *next* set of prerelease versions.
+
+Note that this behavior can be suppressed (treating all prerelease
+versions as if they were normal versions, for the purpose of range
+matching) by setting the `includePrerelease` flag on the options
+object to any
+[functions](https://github.com/npm/node-semver#functions) that do
+range matching.
+
+#### Prerelease Identifiers
+
+The method `.inc` takes an additional `identifier` string argument that
+will append the value of the string as a prerelease identifier:
+
+```javascript
+semver.inc('1.2.3', 'prerelease', 'beta')
+// '1.2.4-beta.0'
+```
+
+command-line example:
+
+```bash
+$ semver 1.2.3 -i prerelease --preid beta
+1.2.4-beta.0
+```
+
+Which then can be used to increment further:
+
+```bash
+$ semver 1.2.4-beta.0 -i prerelease
+1.2.4-beta.1
+```
+
+### Advanced Range Syntax
+
+Advanced range syntax desugars to primitive comparators in
+deterministic ways.
+
+Advanced ranges may be combined in the same way as primitive
+comparators using white space or `||`.
+
+#### Hyphen Ranges `X.Y.Z - A.B.C`
+
+Specifies an inclusive set.
+
+* `1.2.3 - 2.3.4` := `>=1.2.3 <=2.3.4`
+
+If a partial version is provided as the first version in the inclusive
+range, then the missing pieces are replaced with zeroes.
+
+* `1.2 - 2.3.4` := `>=1.2.0 <=2.3.4`
+
+If a partial version is provided as the second version in the
+inclusive range, then all versions that start with the supplied parts
+of the tuple are accepted, but nothing that would be greater than the
+provided tuple parts.
+
+* `1.2.3 - 2.3` := `>=1.2.3 <2.4.0`
+* `1.2.3 - 2` := `>=1.2.3 <3.0.0`
+
+#### X-Ranges `1.2.x` `1.X` `1.2.*` `*`
+
+Any of `X`, `x`, or `*` may be used to "stand in" for one of the
+numeric values in the `[major, minor, patch]` tuple.
+
+* `*` := `>=0.0.0` (Any version satisfies)
+* `1.x` := `>=1.0.0 <2.0.0` (Matching major version)
+* `1.2.x` := `>=1.2.0 <1.3.0` (Matching major and minor versions)
+
+A partial version range is treated as an X-Range, so the special
+character is in fact optional.
+
+* `""` (empty string) := `*` := `>=0.0.0`
+* `1` := `1.x.x` := `>=1.0.0 <2.0.0`
+* `1.2` := `1.2.x` := `>=1.2.0 <1.3.0`
+
+#### Tilde Ranges `~1.2.3` `~1.2` `~1`
+
+Allows patch-level changes if a minor version is specified on the
+comparator.  Allows minor-level changes if not.
+
+* `~1.2.3` := `>=1.2.3 <1.(2+1).0` := `>=1.2.3 <1.3.0`
+* `~1.2` := `>=1.2.0 <1.(2+1).0` := `>=1.2.0 <1.3.0` (Same as `1.2.x`)
+* `~1` := `>=1.0.0 <(1+1).0.0` := `>=1.0.0 <2.0.0` (Same as `1.x`)
+* `~0.2.3` := `>=0.2.3 <0.(2+1).0` := `>=0.2.3 <0.3.0`
+* `~0.2` := `>=0.2.0 <0.(2+1).0` := `>=0.2.0 <0.3.0` (Same as `0.2.x`)
+* `~0` := `>=0.0.0 <(0+1).0.0` := `>=0.0.0 <1.0.0` (Same as `0.x`)
+* `~1.2.3-beta.2` := `>=1.2.3-beta.2 <1.3.0` Note that prereleases in
+  the `1.2.3` version will be allowed, if they are greater than or
+  equal to `beta.2`.  So, `1.2.3-beta.4` would be allowed, but
+  `1.2.4-beta.2` would not, because it is a prerelease of a
+  different `[major, minor, patch]` tuple.
+
+#### Caret Ranges `^1.2.3` `^0.2.5` `^0.0.4`
+
+Allows changes that do not modify the left-most non-zero digit in the
+`[major, minor, patch]` tuple.  In other words, this allows patch and
+minor updates for versions `1.0.0` and above, patch updates for
+versions `0.X >=0.1.0`, and *no* updates for versions `0.0.X`.
+
+Many authors treat a `0.x` version as if the `x` were the major
+"breaking-change" indicator.
+
+Caret ranges are ideal when an author may make breaking changes
+between `0.2.4` and `0.3.0` releases, which is a common practice.
+However, it presumes that there will *not* be breaking changes between
+`0.2.4` and `0.2.5`.  It allows for changes that are presumed to be
+additive (but non-breaking), according to commonly observed practices.
+
+* `^1.2.3` := `>=1.2.3 <2.0.0`
+* `^0.2.3` := `>=0.2.3 <0.3.0`
+* `^0.0.3` := `>=0.0.3 <0.0.4`
+* `^1.2.3-beta.2` := `>=1.2.3-beta.2 <2.0.0` Note that prereleases in
+  the `1.2.3` version will be allowed, if they are greater than or
+  equal to `beta.2`.  So, `1.2.3-beta.4` would be allowed, but
+  `1.2.4-beta.2` would not, because it is a prerelease of a
+  different `[major, minor, patch]` tuple.
+* `^0.0.3-beta` := `>=0.0.3-beta <0.0.4`  Note that prereleases in the
+  `0.0.3` version *only* will be allowed, if they are greater than or
+  equal to `beta`.  So, `0.0.3-pr.2` would be allowed.
+
+When parsing caret ranges, a missing `patch` value desugars to the
+number `0`, but will allow flexibility within that value, even if the
+major and minor versions are both `0`.
+
+* `^1.2.x` := `>=1.2.0 <2.0.0`
+* `^0.0.x` := `>=0.0.0 <0.1.0`
+* `^0.0` := `>=0.0.0 <0.1.0`
+
+A missing `minor` and `patch` values will desugar to zero, but also
+allow flexibility within those values, even if the major version is
+zero.
+
+* `^1.x` := `>=1.0.0 <2.0.0`
+* `^0.x` := `>=0.0.0 <1.0.0`
+
+### Range Grammar
+
+Putting all this together, here is a Backus-Naur grammar for ranges,
+for the benefit of parser authors:
+
+```bnf
+range-set  ::= range ( logical-or range ) *
+logical-or ::= ( ' ' ) * '||' ( ' ' ) *
+range      ::= hyphen | simple ( ' ' simple ) * | ''
+hyphen     ::= partial ' - ' partial
+simple     ::= primitive | partial | tilde | caret
+primitive  ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial
+partial    ::= xr ( '.' xr ( '.' xr qualifier ? )? )?
+xr         ::= 'x' | 'X' | '*' | nr
+nr         ::= '0' | ['1'-'9'] ( ['0'-'9'] ) *
+tilde      ::= '~' partial
+caret      ::= '^' partial
+qualifier  ::= ( '-' pre )? ( '+' build )?
+pre        ::= parts
+build      ::= parts
+parts      ::= part ( '.' part ) *
+part       ::= nr | [-0-9A-Za-z]+
+```
+
+## Functions
+
+All methods and classes take a final `options` object argument.  All
+options in this object are `false` by default.  The options supported
+are:
+
+- `loose`  Be more forgiving about not-quite-valid semver strings.
+  (Any resulting output will always be 100% strict compliant, of
+  course.)  For backwards compatibility reasons, if the `options`
+  argument is a boolean value instead of an object, it is interpreted
+  to be the `loose` param.
+- `includePrerelease`  Set to suppress the [default
+  behavior](https://github.com/npm/node-semver#prerelease-tags) of
+  excluding prerelease tagged versions from ranges unless they are
+  explicitly opted into.
+
+Strict-mode Comparators and Ranges will be strict about the SemVer
+strings that they parse.
+
+* `valid(v)`: Return the parsed version, or null if it's not valid.
+* `inc(v, release)`: Return the version incremented by the release
+  type (`major`,   `premajor`, `minor`, `preminor`, `patch`,
+  `prepatch`, or `prerelease`), or null if it's not valid
+  * `premajor` in one call will bump the version up to the next major
+    version and down to a prerelease of that major version.
+    `preminor`, and `prepatch` work the same way.
+  * If called from a non-prerelease version, the `prerelease` will work the
+    same as `prepatch`. It increments the patch version, then makes a
+    prerelease. If the input version is already a prerelease it simply
+    increments it.
+* `prerelease(v)`: Returns an array of prerelease components, or null
+  if none exist. Example: `prerelease('1.2.3-alpha.1') -> ['alpha', 1]`
+* `major(v)`: Return the major version number.
+* `minor(v)`: Return the minor version number.
+* `patch(v)`: Return the patch version number.
+* `intersects(r1, r2, loose)`: Return true if the two supplied ranges
+  or comparators intersect.
+* `parse(v)`: Attempt to parse a string as a semantic version, returning either
+  a `SemVer` object or `null`.
+
+### Comparison
+
+* `gt(v1, v2)`: `v1 > v2`
+* `gte(v1, v2)`: `v1 >= v2`
+* `lt(v1, v2)`: `v1 < v2`
+* `lte(v1, v2)`: `v1 <= v2`
+* `eq(v1, v2)`: `v1 == v2` This is true if they're logically equivalent,
+  even if they're not the exact same string.  You already know how to
+  compare strings.
+* `neq(v1, v2)`: `v1 != v2` The opposite of `eq`.
+* `cmp(v1, comparator, v2)`: Pass in a comparison string, and it'll call
+  the corresponding function above.  `"==="` and `"!=="` do simple
+  string comparison, but are included for completeness.  Throws if an
+  invalid comparison string is provided.
+* `compare(v1, v2)`: Return `0` if `v1 == v2`, or `1` if `v1` is greater, or `-1` if
+  `v2` is greater.  Sorts in ascending order if passed to `Array.sort()`.
+* `rcompare(v1, v2)`: The reverse of compare.  Sorts an array of versions
+  in descending order when passed to `Array.sort()`.
+* `diff(v1, v2)`: Returns difference between two versions by the release type
+  (`major`, `premajor`, `minor`, `preminor`, `patch`, `prepatch`, or `prerelease`),
+  or null if the versions are the same.
+
+### Comparators
+
+* `intersects(comparator)`: Return true if the comparators intersect
+
+### Ranges
+
+* `validRange(range)`: Return the valid range or null if it's not valid
+* `satisfies(version, range)`: Return true if the version satisfies the
+  range.
+* `maxSatisfying(versions, range)`: Return the highest version in the list
+  that satisfies the range, or `null` if none of them do.
+* `minSatisfying(versions, range)`: Return the lowest version in the list
+  that satisfies the range, or `null` if none of them do.
+* `minVersion(range)`: Return the lowest version that can possibly match
+  the given range.
+* `gtr(version, range)`: Return `true` if version is greater than all the
+  versions possible in the range.
+* `ltr(version, range)`: Return `true` if version is less than all the
+  versions possible in the range.
+* `outside(version, range, hilo)`: Return true if the version is outside
+  the bounds of the range in either the high or low direction.  The
+  `hilo` argument must be either the string `'>'` or `'<'`.  (This is
+  the function called by `gtr` and `ltr`.)
+* `intersects(range)`: Return true if any of the ranges comparators intersect
+
+Note that, since ranges may be non-contiguous, a version might not be
+greater than a range, less than a range, *or* satisfy a range!  For
+example, the range `1.2 <1.2.9 || >2.0.0` would have a hole from `1.2.9`
+until `2.0.0`, so the version `1.2.10` would not be greater than the
+range (because `2.0.1` satisfies, which is higher), nor less than the
+range (since `1.2.8` satisfies, which is lower), and it also does not
+satisfy the range.
+
+If you want to know if a version satisfies or does not satisfy a
+range, use the `satisfies(version, range)` function.
+
+### Coercion
+
+* `coerce(version)`: Coerces a string to semver if possible
+
+This aims to provide a very forgiving translation of a non-semver
+string to semver. It looks for the first digit in a string, and
+consumes all remaining characters which satisfy at least a partial semver
+(e.g., `1`, `1.2`, `1.2.3`) up to the max permitted length (256 characters).
+Longer versions are simply truncated (`4.6.3.9.2-alpha2` becomes `4.6.3`).
+All surrounding text is simply ignored (`v3.4 replaces v3.3.1` becomes `3.4.0`).
+Only text which lacks digits will fail coercion (`version one` is not valid).
+The maximum  length for any semver component considered for coercion is 16 characters;
+longer components will be ignored (`10000000000000000.4.7.4` becomes `4.7.4`).
+The maximum value for any semver component is `Integer.MAX_SAFE_INTEGER || (2**53 - 1)`;
+higher value components are invalid (`9999999999999999.4.7.4` is likely invalid).
diff --git a/helloworld/node_modules/semver/bin/semver b/helloworld/node_modules/semver/bin/semver
new file mode 100755
index 0000000..801e77f
--- /dev/null
+++ b/helloworld/node_modules/semver/bin/semver
@@ -0,0 +1,160 @@
+#!/usr/bin/env node
+// Standalone semver comparison program.
+// Exits successfully and prints matching version(s) if
+// any supplied version is valid and passes all tests.
+
+var argv = process.argv.slice(2)
+
+var versions = []
+
+var range = []
+
+var inc = null
+
+var version = require('../package.json').version
+
+var loose = false
+
+var includePrerelease = false
+
+var coerce = false
+
+var identifier
+
+var semver = require('../semver')
+
+var reverse = false
+
+var options = {}
+
+main()
+
+function main () {
+  if (!argv.length) return help()
+  while (argv.length) {
+    var a = argv.shift()
+    var indexOfEqualSign = a.indexOf('=')
+    if (indexOfEqualSign !== -1) {
+      a = a.slice(0, indexOfEqualSign)
+      argv.unshift(a.slice(indexOfEqualSign + 1))
+    }
+    switch (a) {
+      case '-rv': case '-rev': case '--rev': case '--reverse':
+        reverse = true
+        break
+      case '-l': case '--loose':
+        loose = true
+        break
+      case '-p': case '--include-prerelease':
+        includePrerelease = true
+        break
+      case '-v': case '--version':
+        versions.push(argv.shift())
+        break
+      case '-i': case '--inc': case '--increment':
+        switch (argv[0]) {
+          case 'major': case 'minor': case 'patch': case 'prerelease':
+          case 'premajor': case 'preminor': case 'prepatch':
+            inc = argv.shift()
+            break
+          default:
+            inc = 'patch'
+            break
+        }
+        break
+      case '--preid':
+        identifier = argv.shift()
+        break
+      case '-r': case '--range':
+        range.push(argv.shift())
+        break
+      case '-c': case '--coerce':
+        coerce = true
+        break
+      case '-h': case '--help': case '-?':
+        return help()
+      default:
+        versions.push(a)
+        break
+    }
+  }
+
+  var options = { loose: loose, includePrerelease: includePrerelease }
+
+  versions = versions.map(function (v) {
+    return coerce ? (semver.coerce(v) || { version: v }).version : v
+  }).filter(function (v) {
+    return semver.valid(v)
+  })
+  if (!versions.length) return fail()
+  if (inc && (versions.length !== 1 || range.length)) { return failInc() }
+
+  for (var i = 0, l = range.length; i < l; i++) {
+    versions = versions.filter(function (v) {
+      return semver.satisfies(v, range[i], options)
+    })
+    if (!versions.length) return fail()
+  }
+  return success(versions)
+}
+
+function failInc () {
+  console.error('--inc can only be used on a single version with no range')
+  fail()
+}
+
+function fail () { process.exit(1) }
+
+function success () {
+  var compare = reverse ? 'rcompare' : 'compare'
+  versions.sort(function (a, b) {
+    return semver[compare](a, b, options)
+  }).map(function (v) {
+    return semver.clean(v, options)
+  }).map(function (v) {
+    return inc ? semver.inc(v, inc, options, identifier) : v
+  }).forEach(function (v, i, _) { console.log(v) })
+}
+
+function help () {
+  console.log(['SemVer ' + version,
+    '',
+    'A JavaScript implementation of the https://semver.org/ specification',
+    'Copyright Isaac Z. Schlueter',
+    '',
+    'Usage: semver [options] <version> [<version> [...]]',
+    'Prints valid versions sorted by SemVer precedence',
+    '',
+    'Options:',
+    '-r --range <range>',
+    '        Print versions that match the specified range.',
+    '',
+    '-i --increment [<level>]',
+    '        Increment a version by the specified level.  Level can',
+    '        be one of: major, minor, patch, premajor, preminor,',
+    "        prepatch, or prerelease.  Default level is 'patch'.",
+    '        Only one version may be specified.',
+    '',
+    '--preid <identifier>',
+    '        Identifier to be used to prefix premajor, preminor,',
+    '        prepatch or prerelease version increments.',
+    '',
+    '-l --loose',
+    '        Interpret versions and ranges loosely',
+    '',
+    '-p --include-prerelease',
+    '        Always include prerelease versions in range matching',
+    '',
+    '-c --coerce',
+    '        Coerce a string into SemVer if possible',
+    '        (does not imply --loose)',
+    '',
+    'Program exits successfully if any valid version satisfies',
+    'all supplied ranges, and prints all satisfying versions.',
+    '',
+    'If no satisfying versions are found, then exits failure.',
+    '',
+    'Versions are printed in ascending order, so supplying',
+    'multiple versions to the utility will just sort them.'
+  ].join('\n'))
+}
diff --git a/helloworld/node_modules/semver/range.bnf b/helloworld/node_modules/semver/range.bnf
new file mode 100755
index 0000000..d4c6ae0
--- /dev/null
+++ b/helloworld/node_modules/semver/range.bnf
@@ -0,0 +1,16 @@
+range-set  ::= range ( logical-or range ) *
+logical-or ::= ( ' ' ) * '||' ( ' ' ) *
+range      ::= hyphen | simple ( ' ' simple ) * | ''
+hyphen     ::= partial ' - ' partial
+simple     ::= primitive | partial | tilde | caret
+primitive  ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial
+partial    ::= xr ( '.' xr ( '.' xr qualifier ? )? )?
+xr         ::= 'x' | 'X' | '*' | nr
+nr         ::= '0' | [1-9] ( [0-9] ) *
+tilde      ::= '~' partial
+caret      ::= '^' partial
+qualifier  ::= ( '-' pre )? ( '+' build )?
+pre        ::= parts
+build      ::= parts
+parts      ::= part ( '.' part ) *
+part       ::= nr | [-0-9A-Za-z]+
diff --git a/helloworld/node_modules/semver/semver.js b/helloworld/node_modules/semver/semver.js
new file mode 100755
index 0000000..d315d5d
--- /dev/null
+++ b/helloworld/node_modules/semver/semver.js
@@ -0,0 +1,1483 @@
+exports = module.exports = SemVer
+
+var debug
+/* istanbul ignore next */
+if (typeof process === 'object' &&
+    process.env &&
+    process.env.NODE_DEBUG &&
+    /\bsemver\b/i.test(process.env.NODE_DEBUG)) {
+  debug = function () {
+    var args = Array.prototype.slice.call(arguments, 0)
+    args.unshift('SEMVER')
+    console.log.apply(console, args)
+  }
+} else {
+  debug = function () {}
+}
+
+// Note: this is the semver.org version of the spec that it implements
+// Not necessarily the package version of this code.
+exports.SEMVER_SPEC_VERSION = '2.0.0'
+
+var MAX_LENGTH = 256
+var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER ||
+  /* istanbul ignore next */ 9007199254740991
+
+// Max safe segment length for coercion.
+var MAX_SAFE_COMPONENT_LENGTH = 16
+
+// The actual regexps go on exports.re
+var re = exports.re = []
+var src = exports.src = []
+var R = 0
+
+// The following Regular Expressions can be used for tokenizing,
+// validating, and parsing SemVer version strings.
+
+// ## Numeric Identifier
+// A single `0`, or a non-zero digit followed by zero or more digits.
+
+var NUMERICIDENTIFIER = R++
+src[NUMERICIDENTIFIER] = '0|[1-9]\\d*'
+var NUMERICIDENTIFIERLOOSE = R++
+src[NUMERICIDENTIFIERLOOSE] = '[0-9]+'
+
+// ## Non-numeric Identifier
+// Zero or more digits, followed by a letter or hyphen, and then zero or
+// more letters, digits, or hyphens.
+
+var NONNUMERICIDENTIFIER = R++
+src[NONNUMERICIDENTIFIER] = '\\d*[a-zA-Z-][a-zA-Z0-9-]*'
+
+// ## Main Version
+// Three dot-separated numeric identifiers.
+
+var MAINVERSION = R++
+src[MAINVERSION] = '(' + src[NUMERICIDENTIFIER] + ')\\.' +
+                   '(' + src[NUMERICIDENTIFIER] + ')\\.' +
+                   '(' + src[NUMERICIDENTIFIER] + ')'
+
+var MAINVERSIONLOOSE = R++
+src[MAINVERSIONLOOSE] = '(' + src[NUMERICIDENTIFIERLOOSE] + ')\\.' +
+                        '(' + src[NUMERICIDENTIFIERLOOSE] + ')\\.' +
+                        '(' + src[NUMERICIDENTIFIERLOOSE] + ')'
+
+// ## Pre-release Version Identifier
+// A numeric identifier, or a non-numeric identifier.
+
+var PRERELEASEIDENTIFIER = R++
+src[PRERELEASEIDENTIFIER] = '(?:' + src[NUMERICIDENTIFIER] +
+                            '|' + src[NONNUMERICIDENTIFIER] + ')'
+
+var PRERELEASEIDENTIFIERLOOSE = R++
+src[PRERELEASEIDENTIFIERLOOSE] = '(?:' + src[NUMERICIDENTIFIERLOOSE] +
+                                 '|' + src[NONNUMERICIDENTIFIER] + ')'
+
+// ## Pre-release Version
+// Hyphen, followed by one or more dot-separated pre-release version
+// identifiers.
+
+var PRERELEASE = R++
+src[PRERELEASE] = '(?:-(' + src[PRERELEASEIDENTIFIER] +
+                  '(?:\\.' + src[PRERELEASEIDENTIFIER] + ')*))'
+
+var PRERELEASELOOSE = R++
+src[PRERELEASELOOSE] = '(?:-?(' + src[PRERELEASEIDENTIFIERLOOSE] +
+                       '(?:\\.' + src[PRERELEASEIDENTIFIERLOOSE] + ')*))'
+
+// ## Build Metadata Identifier
+// Any combination of digits, letters, or hyphens.
+
+var BUILDIDENTIFIER = R++
+src[BUILDIDENTIFIER] = '[0-9A-Za-z-]+'
+
+// ## Build Metadata
+// Plus sign, followed by one or more period-separated build metadata
+// identifiers.
+
+var BUILD = R++
+src[BUILD] = '(?:\\+(' + src[BUILDIDENTIFIER] +
+             '(?:\\.' + src[BUILDIDENTIFIER] + ')*))'
+
+// ## Full Version String
+// A main version, followed optionally by a pre-release version and
+// build metadata.
+
+// Note that the only major, minor, patch, and pre-release sections of
+// the version string are capturing groups.  The build metadata is not a
+// capturing group, because it should not ever be used in version
+// comparison.
+
+var FULL = R++
+var FULLPLAIN = 'v?' + src[MAINVERSION] +
+                src[PRERELEASE] + '?' +
+                src[BUILD] + '?'
+
+src[FULL] = '^' + FULLPLAIN + '$'
+
+// like full, but allows v1.2.3 and =1.2.3, which people do sometimes.
+// also, 1.0.0alpha1 (prerelease without the hyphen) which is pretty
+// common in the npm registry.
+var LOOSEPLAIN = '[v=\\s]*' + src[MAINVERSIONLOOSE] +
+                 src[PRERELEASELOOSE] + '?' +
+                 src[BUILD] + '?'
+
+var LOOSE = R++
+src[LOOSE] = '^' + LOOSEPLAIN + '$'
+
+var GTLT = R++
+src[GTLT] = '((?:<|>)?=?)'
+
+// Something like "2.*" or "1.2.x".
+// Note that "x.x" is a valid xRange identifer, meaning "any version"
+// Only the first item is strictly required.
+var XRANGEIDENTIFIERLOOSE = R++
+src[XRANGEIDENTIFIERLOOSE] = src[NUMERICIDENTIFIERLOOSE] + '|x|X|\\*'
+var XRANGEIDENTIFIER = R++
+src[XRANGEIDENTIFIER] = src[NUMERICIDENTIFIER] + '|x|X|\\*'
+
+var XRANGEPLAIN = R++
+src[XRANGEPLAIN] = '[v=\\s]*(' + src[XRANGEIDENTIFIER] + ')' +
+                   '(?:\\.(' + src[XRANGEIDENTIFIER] + ')' +
+                   '(?:\\.(' + src[XRANGEIDENTIFIER] + ')' +
+                   '(?:' + src[PRERELEASE] + ')?' +
+                   src[BUILD] + '?' +
+                   ')?)?'
+
+var XRANGEPLAINLOOSE = R++
+src[XRANGEPLAINLOOSE] = '[v=\\s]*(' + src[XRANGEIDENTIFIERLOOSE] + ')' +
+                        '(?:\\.(' + src[XRANGEIDENTIFIERLOOSE] + ')' +
+                        '(?:\\.(' + src[XRANGEIDENTIFIERLOOSE] + ')' +
+                        '(?:' + src[PRERELEASELOOSE] + ')?' +
+                        src[BUILD] + '?' +
+                        ')?)?'
+
+var XRANGE = R++
+src[XRANGE] = '^' + src[GTLT] + '\\s*' + src[XRANGEPLAIN] + '$'
+var XRANGELOOSE = R++
+src[XRANGELOOSE] = '^' + src[GTLT] + '\\s*' + src[XRANGEPLAINLOOSE] + '$'
+
+// Coercion.
+// Extract anything that could conceivably be a part of a valid semver
+var COERCE = R++
+src[COERCE] = '(?:^|[^\\d])' +
+              '(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '})' +
+              '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' +
+              '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' +
+              '(?:$|[^\\d])'
+
+// Tilde ranges.
+// Meaning is "reasonably at or greater than"
+var LONETILDE = R++
+src[LONETILDE] = '(?:~>?)'
+
+var TILDETRIM = R++
+src[TILDETRIM] = '(\\s*)' + src[LONETILDE] + '\\s+'
+re[TILDETRIM] = new RegExp(src[TILDETRIM], 'g')
+var tildeTrimReplace = '$1~'
+
+var TILDE = R++
+src[TILDE] = '^' + src[LONETILDE] + src[XRANGEPLAIN] + '$'
+var TILDELOOSE = R++
+src[TILDELOOSE] = '^' + src[LONETILDE] + src[XRANGEPLAINLOOSE] + '$'
+
+// Caret ranges.
+// Meaning is "at least and backwards compatible with"
+var LONECARET = R++
+src[LONECARET] = '(?:\\^)'
+
+var CARETTRIM = R++
+src[CARETTRIM] = '(\\s*)' + src[LONECARET] + '\\s+'
+re[CARETTRIM] = new RegExp(src[CARETTRIM], 'g')
+var caretTrimReplace = '$1^'
+
+var CARET = R++
+src[CARET] = '^' + src[LONECARET] + src[XRANGEPLAIN] + '$'
+var CARETLOOSE = R++
+src[CARETLOOSE] = '^' + src[LONECARET] + src[XRANGEPLAINLOOSE] + '$'
+
+// A simple gt/lt/eq thing, or just "" to indicate "any version"
+var COMPARATORLOOSE = R++
+src[COMPARATORLOOSE] = '^' + src[GTLT] + '\\s*(' + LOOSEPLAIN + ')$|^$'
+var COMPARATOR = R++
+src[COMPARATOR] = '^' + src[GTLT] + '\\s*(' + FULLPLAIN + ')$|^$'
+
+// An expression to strip any whitespace between the gtlt and the thing
+// it modifies, so that `> 1.2.3` ==> `>1.2.3`
+var COMPARATORTRIM = R++
+src[COMPARATORTRIM] = '(\\s*)' + src[GTLT] +
+                      '\\s*(' + LOOSEPLAIN + '|' + src[XRANGEPLAIN] + ')'
+
+// this one has to use the /g flag
+re[COMPARATORTRIM] = new RegExp(src[COMPARATORTRIM], 'g')
+var comparatorTrimReplace = '$1$2$3'
+
+// Something like `1.2.3 - 1.2.4`
+// Note that these all use the loose form, because they'll be
+// checked against either the strict or loose comparator form
+// later.
+var HYPHENRANGE = R++
+src[HYPHENRANGE] = '^\\s*(' + src[XRANGEPLAIN] + ')' +
+                   '\\s+-\\s+' +
+                   '(' + src[XRANGEPLAIN] + ')' +
+                   '\\s*$'
+
+var HYPHENRANGELOOSE = R++
+src[HYPHENRANGELOOSE] = '^\\s*(' + src[XRANGEPLAINLOOSE] + ')' +
+                        '\\s+-\\s+' +
+                        '(' + src[XRANGEPLAINLOOSE] + ')' +
+                        '\\s*$'
+
+// Star ranges basically just allow anything at all.
+var STAR = R++
+src[STAR] = '(<|>)?=?\\s*\\*'
+
+// Compile to actual regexp objects.
+// All are flag-free, unless they were created above with a flag.
+for (var i = 0; i < R; i++) {
+  debug(i, src[i])
+  if (!re[i]) {
+    re[i] = new RegExp(src[i])
+  }
+}
+
+exports.parse = parse
+function parse (version, options) {
+  if (!options || typeof options !== 'object') {
+    options = {
+      loose: !!options,
+      includePrerelease: false
+    }
+  }
+
+  if (version instanceof SemVer) {
+    return version
+  }
+
+  if (typeof version !== 'string') {
+    return null
+  }
+
+  if (version.length > MAX_LENGTH) {
+    return null
+  }
+
+  var r = options.loose ? re[LOOSE] : re[FULL]
+  if (!r.test(version)) {
+    return null
+  }
+
+  try {
+    return new SemVer(version, options)
+  } catch (er) {
+    return null
+  }
+}
+
+exports.valid = valid
+function valid (version, options) {
+  var v = parse(version, options)
+  return v ? v.version : null
+}
+
+exports.clean = clean
+function clean (version, options) {
+  var s = parse(version.trim().replace(/^[=v]+/, ''), options)
+  return s ? s.version : null
+}
+
+exports.SemVer = SemVer
+
+function SemVer (version, options) {
+  if (!options || typeof options !== 'object') {
+    options = {
+      loose: !!options,
+      includePrerelease: false
+    }
+  }
+  if (version instanceof SemVer) {
+    if (version.loose === options.loose) {
+      return version
+    } else {
+      version = version.version
+    }
+  } else if (typeof version !== 'string') {
+    throw new TypeError('Invalid Version: ' + version)
+  }
+
+  if (version.length > MAX_LENGTH) {
+    throw new TypeError('version is longer than ' + MAX_LENGTH + ' characters')
+  }
+
+  if (!(this instanceof SemVer)) {
+    return new SemVer(version, options)
+  }
+
+  debug('SemVer', version, options)
+  this.options = options
+  this.loose = !!options.loose
+
+  var m = version.trim().match(options.loose ? re[LOOSE] : re[FULL])
+
+  if (!m) {
+    throw new TypeError('Invalid Version: ' + version)
+  }
+
+  this.raw = version
+
+  // these are actually numbers
+  this.major = +m[1]
+  this.minor = +m[2]
+  this.patch = +m[3]
+
+  if (this.major > MAX_SAFE_INTEGER || this.major < 0) {
+    throw new TypeError('Invalid major version')
+  }
+
+  if (this.minor > MAX_SAFE_INTEGER || this.minor < 0) {
+    throw new TypeError('Invalid minor version')
+  }
+
+  if (this.patch > MAX_SAFE_INTEGER || this.patch < 0) {
+    throw new TypeError('Invalid patch version')
+  }
+
+  // numberify any prerelease numeric ids
+  if (!m[4]) {
+    this.prerelease = []
+  } else {
+    this.prerelease = m[4].split('.').map(function (id) {
+      if (/^[0-9]+$/.test(id)) {
+        var num = +id
+        if (num >= 0 && num < MAX_SAFE_INTEGER) {
+          return num
+        }
+      }
+      return id
+    })
+  }
+
+  this.build = m[5] ? m[5].split('.') : []
+  this.format()
+}
+
+SemVer.prototype.format = function () {
+  this.version = this.major + '.' + this.minor + '.' + this.patch
+  if (this.prerelease.length) {
+    this.version += '-' + this.prerelease.join('.')
+  }
+  return this.version
+}
+
+SemVer.prototype.toString = function () {
+  return this.version
+}
+
+SemVer.prototype.compare = function (other) {
+  debug('SemVer.compare', this.version, this.options, other)
+  if (!(other instanceof SemVer)) {
+    other = new SemVer(other, this.options)
+  }
+
+  return this.compareMain(other) || this.comparePre(other)
+}
+
+SemVer.prototype.compareMain = function (other) {
+  if (!(other instanceof SemVer)) {
+    other = new SemVer(other, this.options)
+  }
+
+  return compareIdentifiers(this.major, other.major) ||
+         compareIdentifiers(this.minor, other.minor) ||
+         compareIdentifiers(this.patch, other.patch)
+}
+
+SemVer.prototype.comparePre = function (other) {
+  if (!(other instanceof SemVer)) {
+    other = new SemVer(other, this.options)
+  }
+
+  // NOT having a prerelease is > having one
+  if (this.prerelease.length && !other.prerelease.length) {
+    return -1
+  } else if (!this.prerelease.length && other.prerelease.length) {
+    return 1
+  } else if (!this.prerelease.length && !other.prerelease.length) {
+    return 0
+  }
+
+  var i = 0
+  do {
+    var a = this.prerelease[i]
+    var b = other.prerelease[i]
+    debug('prerelease compare', i, a, b)
+    if (a === undefined && b === undefined) {
+      return 0
+    } else if (b === undefined) {
+      return 1
+    } else if (a === undefined) {
+      return -1
+    } else if (a === b) {
+      continue
+    } else {
+      return compareIdentifiers(a, b)
+    }
+  } while (++i)
+}
+
+// preminor will bump the version up to the next minor release, and immediately
+// down to pre-release. premajor and prepatch work the same way.
+SemVer.prototype.inc = function (release, identifier) {
+  switch (release) {
+    case 'premajor':
+      this.prerelease.length = 0
+      this.patch = 0
+      this.minor = 0
+      this.major++
+      this.inc('pre', identifier)
+      break
+    case 'preminor':
+      this.prerelease.length = 0
+      this.patch = 0
+      this.minor++
+      this.inc('pre', identifier)
+      break
+    case 'prepatch':
+      // If this is already a prerelease, it will bump to the next version
+      // drop any prereleases that might already exist, since they are not
+      // relevant at this point.
+      this.prerelease.length = 0
+      this.inc('patch', identifier)
+      this.inc('pre', identifier)
+      break
+    // If the input is a non-prerelease version, this acts the same as
+    // prepatch.
+    case 'prerelease':
+      if (this.prerelease.length === 0) {
+        this.inc('patch', identifier)
+      }
+      this.inc('pre', identifier)
+      break
+
+    case 'major':
+      // If this is a pre-major version, bump up to the same major version.
+      // Otherwise increment major.
+      // 1.0.0-5 bumps to 1.0.0
+      // 1.1.0 bumps to 2.0.0
+      if (this.minor !== 0 ||
+          this.patch !== 0 ||
+          this.prerelease.length === 0) {
+        this.major++
+      }
+      this.minor = 0
+      this.patch = 0
+      this.prerelease = []
+      break
+    case 'minor':
+      // If this is a pre-minor version, bump up to the same minor version.
+      // Otherwise increment minor.
+      // 1.2.0-5 bumps to 1.2.0
+      // 1.2.1 bumps to 1.3.0
+      if (this.patch !== 0 || this.prerelease.length === 0) {
+        this.minor++
+      }
+      this.patch = 0
+      this.prerelease = []
+      break
+    case 'patch':
+      // If this is not a pre-release version, it will increment the patch.
+      // If it is a pre-release it will bump up to the same patch version.
+      // 1.2.0-5 patches to 1.2.0
+      // 1.2.0 patches to 1.2.1
+      if (this.prerelease.length === 0) {
+        this.patch++
+      }
+      this.prerelease = []
+      break
+    // This probably shouldn't be used publicly.
+    // 1.0.0 "pre" would become 1.0.0-0 which is the wrong direction.
+    case 'pre':
+      if (this.prerelease.length === 0) {
+        this.prerelease = [0]
+      } else {
+        var i = this.prerelease.length
+        while (--i >= 0) {
+          if (typeof this.prerelease[i] === 'number') {
+            this.prerelease[i]++
+            i = -2
+          }
+        }
+        if (i === -1) {
+          // didn't increment anything
+          this.prerelease.push(0)
+        }
+      }
+      if (identifier) {
+        // 1.2.0-beta.1 bumps to 1.2.0-beta.2,
+        // 1.2.0-beta.fooblz or 1.2.0-beta bumps to 1.2.0-beta.0
+        if (this.prerelease[0] === identifier) {
+          if (isNaN(this.prerelease[1])) {
+            this.prerelease = [identifier, 0]
+          }
+        } else {
+          this.prerelease = [identifier, 0]
+        }
+      }
+      break
+
+    default:
+      throw new Error('invalid increment argument: ' + release)
+  }
+  this.format()
+  this.raw = this.version
+  return this
+}
+
+exports.inc = inc
+function inc (version, release, loose, identifier) {
+  if (typeof (loose) === 'string') {
+    identifier = loose
+    loose = undefined
+  }
+
+  try {
+    return new SemVer(version, loose).inc(release, identifier).version
+  } catch (er) {
+    return null
+  }
+}
+
+exports.diff = diff
+function diff (version1, version2) {
+  if (eq(version1, version2)) {
+    return null
+  } else {
+    var v1 = parse(version1)
+    var v2 = parse(version2)
+    var prefix = ''
+    if (v1.prerelease.length || v2.prerelease.length) {
+      prefix = 'pre'
+      var defaultResult = 'prerelease'
+    }
+    for (var key in v1) {
+      if (key === 'major' || key === 'minor' || key === 'patch') {
+        if (v1[key] !== v2[key]) {
+          return prefix + key
+        }
+      }
+    }
+    return defaultResult // may be undefined
+  }
+}
+
+exports.compareIdentifiers = compareIdentifiers
+
+var numeric = /^[0-9]+$/
+function compareIdentifiers (a, b) {
+  var anum = numeric.test(a)
+  var bnum = numeric.test(b)
+
+  if (anum && bnum) {
+    a = +a
+    b = +b
+  }
+
+  return a === b ? 0
+    : (anum && !bnum) ? -1
+    : (bnum && !anum) ? 1
+    : a < b ? -1
+    : 1
+}
+
+exports.rcompareIdentifiers = rcompareIdentifiers
+function rcompareIdentifiers (a, b) {
+  return compareIdentifiers(b, a)
+}
+
+exports.major = major
+function major (a, loose) {
+  return new SemVer(a, loose).major
+}
+
+exports.minor = minor
+function minor (a, loose) {
+  return new SemVer(a, loose).minor
+}
+
+exports.patch = patch
+function patch (a, loose) {
+  return new SemVer(a, loose).patch
+}
+
+exports.compare = compare
+function compare (a, b, loose) {
+  return new SemVer(a, loose).compare(new SemVer(b, loose))
+}
+
+exports.compareLoose = compareLoose
+function compareLoose (a, b) {
+  return compare(a, b, true)
+}
+
+exports.rcompare = rcompare
+function rcompare (a, b, loose) {
+  return compare(b, a, loose)
+}
+
+exports.sort = sort
+function sort (list, loose) {
+  return list.sort(function (a, b) {
+    return exports.compare(a, b, loose)
+  })
+}
+
+exports.rsort = rsort
+function rsort (list, loose) {
+  return list.sort(function (a, b) {
+    return exports.rcompare(a, b, loose)
+  })
+}
+
+exports.gt = gt
+function gt (a, b, loose) {
+  return compare(a, b, loose) > 0
+}
+
+exports.lt = lt
+function lt (a, b, loose) {
+  return compare(a, b, loose) < 0
+}
+
+exports.eq = eq
+function eq (a, b, loose) {
+  return compare(a, b, loose) === 0
+}
+
+exports.neq = neq
+function neq (a, b, loose) {
+  return compare(a, b, loose) !== 0
+}
+
+exports.gte = gte
+function gte (a, b, loose) {
+  return compare(a, b, loose) >= 0
+}
+
+exports.lte = lte
+function lte (a, b, loose) {
+  return compare(a, b, loose) <= 0
+}
+
+exports.cmp = cmp
+function cmp (a, op, b, loose) {
+  switch (op) {
+    case '===':
+      if (typeof a === 'object')
+        a = a.version
+      if (typeof b === 'object')
+        b = b.version
+      return a === b
+
+    case '!==':
+      if (typeof a === 'object')
+        a = a.version
+      if (typeof b === 'object')
+        b = b.version
+      return a !== b
+
+    case '':
+    case '=':
+    case '==':
+      return eq(a, b, loose)
+
+    case '!=':
+      return neq(a, b, loose)
+
+    case '>':
+      return gt(a, b, loose)
+
+    case '>=':
+      return gte(a, b, loose)
+
+    case '<':
+      return lt(a, b, loose)
+
+    case '<=':
+      return lte(a, b, loose)
+
+    default:
+      throw new TypeError('Invalid operator: ' + op)
+  }
+}
+
+exports.Comparator = Comparator
+function Comparator (comp, options) {
+  if (!options || typeof options !== 'object') {
+    options = {
+      loose: !!options,
+      includePrerelease: false
+    }
+  }
+
+  if (comp instanceof Comparator) {
+    if (comp.loose === !!options.loose) {
+      return comp
+    } else {
+      comp = comp.value
+    }
+  }
+
+  if (!(this instanceof Comparator)) {
+    return new Comparator(comp, options)
+  }
+
+  debug('comparator', comp, options)
+  this.options = options
+  this.loose = !!options.loose
+  this.parse(comp)
+
+  if (this.semver === ANY) {
+    this.value = ''
+  } else {
+    this.value = this.operator + this.semver.version
+  }
+
+  debug('comp', this)
+}
+
+var ANY = {}
+Comparator.prototype.parse = function (comp) {
+  var r = this.options.loose ? re[COMPARATORLOOSE] : re[COMPARATOR]
+  var m = comp.match(r)
+
+  if (!m) {
+    throw new TypeError('Invalid comparator: ' + comp)
+  }
+
+  this.operator = m[1]
+  if (this.operator === '=') {
+    this.operator = ''
+  }
+
+  // if it literally is just '>' or '' then allow anything.
+  if (!m[2]) {
+    this.semver = ANY
+  } else {
+    this.semver = new SemVer(m[2], this.options.loose)
+  }
+}
+
+Comparator.prototype.toString = function () {
+  return this.value
+}
+
+Comparator.prototype.test = function (version) {
+  debug('Comparator.test', version, this.options.loose)
+
+  if (this.semver === ANY) {
+    return true
+  }
+
+  if (typeof version === 'string') {
+    version = new SemVer(version, this.options)
+  }
+
+  return cmp(version, this.operator, this.semver, this.options)
+}
+
+Comparator.prototype.intersects = function (comp, options) {
+  if (!(comp instanceof Comparator)) {
+    throw new TypeError('a Comparator is required')
+  }
+
+  if (!options || typeof options !== 'object') {
+    options = {
+      loose: !!options,
+      includePrerelease: false
+    }
+  }
+
+  var rangeTmp
+
+  if (this.operator === '') {
+    rangeTmp = new Range(comp.value, options)
+    return satisfies(this.value, rangeTmp, options)
+  } else if (comp.operator === '') {
+    rangeTmp = new Range(this.value, options)
+    return satisfies(comp.semver, rangeTmp, options)
+  }
+
+  var sameDirectionIncreasing =
+    (this.operator === '>=' || this.operator === '>') &&
+    (comp.operator === '>=' || comp.operator === '>')
+  var sameDirectionDecreasing =
+    (this.operator === '<=' || this.operator === '<') &&
+    (comp.operator === '<=' || comp.operator === '<')
+  var sameSemVer = this.semver.version === comp.semver.version
+  var differentDirectionsInclusive =
+    (this.operator === '>=' || this.operator === '<=') &&
+    (comp.operator === '>=' || comp.operator === '<=')
+  var oppositeDirectionsLessThan =
+    cmp(this.semver, '<', comp.semver, options) &&
+    ((this.operator === '>=' || this.operator === '>') &&
+    (comp.operator === '<=' || comp.operator === '<'))
+  var oppositeDirectionsGreaterThan =
+    cmp(this.semver, '>', comp.semver, options) &&
+    ((this.operator === '<=' || this.operator === '<') &&
+    (comp.operator === '>=' || comp.operator === '>'))
+
+  return sameDirectionIncreasing || sameDirectionDecreasing ||
+    (sameSemVer && differentDirectionsInclusive) ||
+    oppositeDirectionsLessThan || oppositeDirectionsGreaterThan
+}
+
+exports.Range = Range
+function Range (range, options) {
+  if (!options || typeof options !== 'object') {
+    options = {
+      loose: !!options,
+      includePrerelease: false
+    }
+  }
+
+  if (range instanceof Range) {
+    if (range.loose === !!options.loose &&
+        range.includePrerelease === !!options.includePrerelease) {
+      return range
+    } else {
+      return new Range(range.raw, options)
+    }
+  }
+
+  if (range instanceof Comparator) {
+    return new Range(range.value, options)
+  }
+
+  if (!(this instanceof Range)) {
+    return new Range(range, options)
+  }
+
+  this.options = options
+  this.loose = !!options.loose
+  this.includePrerelease = !!options.includePrerelease
+
+  // First, split based on boolean or ||
+  this.raw = range
+  this.set = range.split(/\s*\|\|\s*/).map(function (range) {
+    return this.parseRange(range.trim())
+  }, this).filter(function (c) {
+    // throw out any that are not relevant for whatever reason
+    return c.length
+  })
+
+  if (!this.set.length) {
+    throw new TypeError('Invalid SemVer Range: ' + range)
+  }
+
+  this.format()
+}
+
+Range.prototype.format = function () {
+  this.range = this.set.map(function (comps) {
+    return comps.join(' ').trim()
+  }).join('||').trim()
+  return this.range
+}
+
+Range.prototype.toString = function () {
+  return this.range
+}
+
+Range.prototype.parseRange = function (range) {
+  var loose = this.options.loose
+  range = range.trim()
+  // `1.2.3 - 1.2.4` => `>=1.2.3 <=1.2.4`
+  var hr = loose ? re[HYPHENRANGELOOSE] : re[HYPHENRANGE]
+  range = range.replace(hr, hyphenReplace)
+  debug('hyphen replace', range)
+  // `> 1.2.3 < 1.2.5` => `>1.2.3 <1.2.5`
+  range = range.replace(re[COMPARATORTRIM], comparatorTrimReplace)
+  debug('comparator trim', range, re[COMPARATORTRIM])
+
+  // `~ 1.2.3` => `~1.2.3`
+  range = range.replace(re[TILDETRIM], tildeTrimReplace)
+
+  // `^ 1.2.3` => `^1.2.3`
+  range = range.replace(re[CARETTRIM], caretTrimReplace)
+
+  // normalize spaces
+  range = range.split(/\s+/).join(' ')
+
+  // At this point, the range is completely trimmed and
+  // ready to be split into comparators.
+
+  var compRe = loose ? re[COMPARATORLOOSE] : re[COMPARATOR]
+  var set = range.split(' ').map(function (comp) {
+    return parseComparator(comp, this.options)
+  }, this).join(' ').split(/\s+/)
+  if (this.options.loose) {
+    // in loose mode, throw out any that are not valid comparators
+    set = set.filter(function (comp) {
+      return !!comp.match(compRe)
+    })
+  }
+  set = set.map(function (comp) {
+    return new Comparator(comp, this.options)
+  }, this)
+
+  return set
+}
+
+Range.prototype.intersects = function (range, options) {
+  if (!(range instanceof Range)) {
+    throw new TypeError('a Range is required')
+  }
+
+  return this.set.some(function (thisComparators) {
+    return thisComparators.every(function (thisComparator) {
+      return range.set.some(function (rangeComparators) {
+        return rangeComparators.every(function (rangeComparator) {
+          return thisComparator.intersects(rangeComparator, options)
+        })
+      })
+    })
+  })
+}
+
+// Mostly just for testing and legacy API reasons
+exports.toComparators = toComparators
+function toComparators (range, options) {
+  return new Range(range, options).set.map(function (comp) {
+    return comp.map(function (c) {
+      return c.value
+    }).join(' ').trim().split(' ')
+  })
+}
+
+// comprised of xranges, tildes, stars, and gtlt's at this point.
+// already replaced the hyphen ranges
+// turn into a set of JUST comparators.
+function parseComparator (comp, options) {
+  debug('comp', comp, options)
+  comp = replaceCarets(comp, options)
+  debug('caret', comp)
+  comp = replaceTildes(comp, options)
+  debug('tildes', comp)
+  comp = replaceXRanges(comp, options)
+  debug('xrange', comp)
+  comp = replaceStars(comp, options)
+  debug('stars', comp)
+  return comp
+}
+
+function isX (id) {
+  return !id || id.toLowerCase() === 'x' || id === '*'
+}
+
+// ~, ~> --> * (any, kinda silly)
+// ~2, ~2.x, ~2.x.x, ~>2, ~>2.x ~>2.x.x --> >=2.0.0 <3.0.0
+// ~2.0, ~2.0.x, ~>2.0, ~>2.0.x --> >=2.0.0 <2.1.0
+// ~1.2, ~1.2.x, ~>1.2, ~>1.2.x --> >=1.2.0 <1.3.0
+// ~1.2.3, ~>1.2.3 --> >=1.2.3 <1.3.0
+// ~1.2.0, ~>1.2.0 --> >=1.2.0 <1.3.0
+function replaceTildes (comp, options) {
+  return comp.trim().split(/\s+/).map(function (comp) {
+    return replaceTilde(comp, options)
+  }).join(' ')
+}
+
+function replaceTilde (comp, options) {
+  var r = options.loose ? re[TILDELOOSE] : re[TILDE]
+  return comp.replace(r, function (_, M, m, p, pr) {
+    debug('tilde', comp, _, M, m, p, pr)
+    var ret
+
+    if (isX(M)) {
+      ret = ''
+    } else if (isX(m)) {
+      ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0'
+    } else if (isX(p)) {
+      // ~1.2 == >=1.2.0 <1.3.0
+      ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0'
+    } else if (pr) {
+      debug('replaceTilde pr', pr)
+      ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
+            ' <' + M + '.' + (+m + 1) + '.0'
+    } else {
+      // ~1.2.3 == >=1.2.3 <1.3.0
+      ret = '>=' + M + '.' + m + '.' + p +
+            ' <' + M + '.' + (+m + 1) + '.0'
+    }
+
+    debug('tilde return', ret)
+    return ret
+  })
+}
+
+// ^ --> * (any, kinda silly)
+// ^2, ^2.x, ^2.x.x --> >=2.0.0 <3.0.0
+// ^2.0, ^2.0.x --> >=2.0.0 <3.0.0
+// ^1.2, ^1.2.x --> >=1.2.0 <2.0.0
+// ^1.2.3 --> >=1.2.3 <2.0.0
+// ^1.2.0 --> >=1.2.0 <2.0.0
+function replaceCarets (comp, options) {
+  return comp.trim().split(/\s+/).map(function (comp) {
+    return replaceCaret(comp, options)
+  }).join(' ')
+}
+
+function replaceCaret (comp, options) {
+  debug('caret', comp, options)
+  var r = options.loose ? re[CARETLOOSE] : re[CARET]
+  return comp.replace(r, function (_, M, m, p, pr) {
+    debug('caret', comp, _, M, m, p, pr)
+    var ret
+
+    if (isX(M)) {
+      ret = ''
+    } else if (isX(m)) {
+      ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0'
+    } else if (isX(p)) {
+      if (M === '0') {
+        ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0'
+      } else {
+        ret = '>=' + M + '.' + m + '.0 <' + (+M + 1) + '.0.0'
+      }
+    } else if (pr) {
+      debug('replaceCaret pr', pr)
+      if (M === '0') {
+        if (m === '0') {
+          ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
+                ' <' + M + '.' + m + '.' + (+p + 1)
+        } else {
+          ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
+                ' <' + M + '.' + (+m + 1) + '.0'
+        }
+      } else {
+        ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
+              ' <' + (+M + 1) + '.0.0'
+      }
+    } else {
+      debug('no pr')
+      if (M === '0') {
+        if (m === '0') {
+          ret = '>=' + M + '.' + m + '.' + p +
+                ' <' + M + '.' + m + '.' + (+p + 1)
+        } else {
+          ret = '>=' + M + '.' + m + '.' + p +
+                ' <' + M + '.' + (+m + 1) + '.0'
+        }
+      } else {
+        ret = '>=' + M + '.' + m + '.' + p +
+              ' <' + (+M + 1) + '.0.0'
+      }
+    }
+
+    debug('caret return', ret)
+    return ret
+  })
+}
+
+function replaceXRanges (comp, options) {
+  debug('replaceXRanges', comp, options)
+  return comp.split(/\s+/).map(function (comp) {
+    return replaceXRange(comp, options)
+  }).join(' ')
+}
+
+function replaceXRange (comp, options) {
+  comp = comp.trim()
+  var r = options.loose ? re[XRANGELOOSE] : re[XRANGE]
+  return comp.replace(r, function (ret, gtlt, M, m, p, pr) {
+    debug('xRange', comp, ret, gtlt, M, m, p, pr)
+    var xM = isX(M)
+    var xm = xM || isX(m)
+    var xp = xm || isX(p)
+    var anyX = xp
+
+    if (gtlt === '=' && anyX) {
+      gtlt = ''
+    }
+
+    if (xM) {
+      if (gtlt === '>' || gtlt === '<') {
+        // nothing is allowed
+        ret = '<0.0.0'
+      } else {
+        // nothing is forbidden
+        ret = '*'
+      }
+    } else if (gtlt && anyX) {
+      // we know patch is an x, because we have any x at all.
+      // replace X with 0
+      if (xm) {
+        m = 0
+      }
+      p = 0
+
+      if (gtlt === '>') {
+        // >1 => >=2.0.0
+        // >1.2 => >=1.3.0
+        // >1.2.3 => >= 1.2.4
+        gtlt = '>='
+        if (xm) {
+          M = +M + 1
+          m = 0
+          p = 0
+        } else {
+          m = +m + 1
+          p = 0
+        }
+      } else if (gtlt === '<=') {
+        // <=0.7.x is actually <0.8.0, since any 0.7.x should
+        // pass.  Similarly, <=7.x is actually <8.0.0, etc.
+        gtlt = '<'
+        if (xm) {
+          M = +M + 1
+        } else {
+          m = +m + 1
+        }
+      }
+
+      ret = gtlt + M + '.' + m + '.' + p
+    } else if (xm) {
+      ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0'
+    } else if (xp) {
+      ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0'
+    }
+
+    debug('xRange return', ret)
+
+    return ret
+  })
+}
+
+// Because * is AND-ed with everything else in the comparator,
+// and '' means "any version", just remove the *s entirely.
+function replaceStars (comp, options) {
+  debug('replaceStars', comp, options)
+  // Looseness is ignored here.  star is always as loose as it gets!
+  return comp.trim().replace(re[STAR], '')
+}
+
+// This function is passed to string.replace(re[HYPHENRANGE])
+// M, m, patch, prerelease, build
+// 1.2 - 3.4.5 => >=1.2.0 <=3.4.5
+// 1.2.3 - 3.4 => >=1.2.0 <3.5.0 Any 3.4.x will do
+// 1.2 - 3.4 => >=1.2.0 <3.5.0
+function hyphenReplace ($0,
+  from, fM, fm, fp, fpr, fb,
+  to, tM, tm, tp, tpr, tb) {
+  if (isX(fM)) {
+    from = ''
+  } else if (isX(fm)) {
+    from = '>=' + fM + '.0.0'
+  } else if (isX(fp)) {
+    from = '>=' + fM + '.' + fm + '.0'
+  } else {
+    from = '>=' + from
+  }
+
+  if (isX(tM)) {
+    to = ''
+  } else if (isX(tm)) {
+    to = '<' + (+tM + 1) + '.0.0'
+  } else if (isX(tp)) {
+    to = '<' + tM + '.' + (+tm + 1) + '.0'
+  } else if (tpr) {
+    to = '<=' + tM + '.' + tm + '.' + tp + '-' + tpr
+  } else {
+    to = '<=' + to
+  }
+
+  return (from + ' ' + to).trim()
+}
+
+// if ANY of the sets match ALL of its comparators, then pass
+Range.prototype.test = function (version) {
+  if (!version) {
+    return false
+  }
+
+  if (typeof version === 'string') {
+    version = new SemVer(version, this.options)
+  }
+
+  for (var i = 0; i < this.set.length; i++) {
+    if (testSet(this.set[i], version, this.options)) {
+      return true
+    }
+  }
+  return false
+}
+
+function testSet (set, version, options) {
+  for (var i = 0; i < set.length; i++) {
+    if (!set[i].test(version)) {
+      return false
+    }
+  }
+
+  if (version.prerelease.length && !options.includePrerelease) {
+    // Find the set of versions that are allowed to have prereleases
+    // For example, ^1.2.3-pr.1 desugars to >=1.2.3-pr.1 <2.0.0
+    // That should allow `1.2.3-pr.2` to pass.
+    // However, `1.2.4-alpha.notready` should NOT be allowed,
+    // even though it's within the range set by the comparators.
+    for (i = 0; i < set.length; i++) {
+      debug(set[i].semver)
+      if (set[i].semver === ANY) {
+        continue
+      }
+
+      if (set[i].semver.prerelease.length > 0) {
+        var allowed = set[i].semver
+        if (allowed.major === version.major &&
+            allowed.minor === version.minor &&
+            allowed.patch === version.patch) {
+          return true
+        }
+      }
+    }
+
+    // Version has a -pre, but it's not one of the ones we like.
+    return false
+  }
+
+  return true
+}
+
+exports.satisfies = satisfies
+function satisfies (version, range, options) {
+  try {
+    range = new Range(range, options)
+  } catch (er) {
+    return false
+  }
+  return range.test(version)
+}
+
+exports.maxSatisfying = maxSatisfying
+function maxSatisfying (versions, range, options) {
+  var max = null
+  var maxSV = null
+  try {
+    var rangeObj = new Range(range, options)
+  } catch (er) {
+    return null
+  }
+  versions.forEach(function (v) {
+    if (rangeObj.test(v)) {
+      // satisfies(v, range, options)
+      if (!max || maxSV.compare(v) === -1) {
+        // compare(max, v, true)
+        max = v
+        maxSV = new SemVer(max, options)
+      }
+    }
+  })
+  return max
+}
+
+exports.minSatisfying = minSatisfying
+function minSatisfying (versions, range, options) {
+  var min = null
+  var minSV = null
+  try {
+    var rangeObj = new Range(range, options)
+  } catch (er) {
+    return null
+  }
+  versions.forEach(function (v) {
+    if (rangeObj.test(v)) {
+      // satisfies(v, range, options)
+      if (!min || minSV.compare(v) === 1) {
+        // compare(min, v, true)
+        min = v
+        minSV = new SemVer(min, options)
+      }
+    }
+  })
+  return min
+}
+
+exports.minVersion = minVersion
+function minVersion (range, loose) {
+  range = new Range(range, loose)
+
+  var minver = new SemVer('0.0.0')
+  if (range.test(minver)) {
+    return minver
+  }
+
+  minver = new SemVer('0.0.0-0')
+  if (range.test(minver)) {
+    return minver
+  }
+
+  minver = null
+  for (var i = 0; i < range.set.length; ++i) {
+    var comparators = range.set[i]
+
+    comparators.forEach(function (comparator) {
+      // Clone to avoid manipulating the comparator's semver object.
+      var compver = new SemVer(comparator.semver.version)
+      switch (comparator.operator) {
+        case '>':
+          if (compver.prerelease.length === 0) {
+            compver.patch++
+          } else {
+            compver.prerelease.push(0)
+          }
+          compver.raw = compver.format()
+          /* fallthrough */
+        case '':
+        case '>=':
+          if (!minver || gt(minver, compver)) {
+            minver = compver
+          }
+          break
+        case '<':
+        case '<=':
+          /* Ignore maximum versions */
+          break
+        /* istanbul ignore next */
+        default:
+          throw new Error('Unexpected operation: ' + comparator.operator)
+      }
+    })
+  }
+
+  if (minver && range.test(minver)) {
+    return minver
+  }
+
+  return null
+}
+
+exports.validRange = validRange
+function validRange (range, options) {
+  try {
+    // Return '*' instead of '' so that truthiness works.
+    // This will throw if it's invalid anyway
+    return new Range(range, options).range || '*'
+  } catch (er) {
+    return null
+  }
+}
+
+// Determine if version is less than all the versions possible in the range
+exports.ltr = ltr
+function ltr (version, range, options) {
+  return outside(version, range, '<', options)
+}
+
+// Determine if version is greater than all the versions possible in the range.
+exports.gtr = gtr
+function gtr (version, range, options) {
+  return outside(version, range, '>', options)
+}
+
+exports.outside = outside
+function outside (version, range, hilo, options) {
+  version = new SemVer(version, options)
+  range = new Range(range, options)
+
+  var gtfn, ltefn, ltfn, comp, ecomp
+  switch (hilo) {
+    case '>':
+      gtfn = gt
+      ltefn = lte
+      ltfn = lt
+      comp = '>'
+      ecomp = '>='
+      break
+    case '<':
+      gtfn = lt
+      ltefn = gte
+      ltfn = gt
+      comp = '<'
+      ecomp = '<='
+      break
+    default:
+      throw new TypeError('Must provide a hilo val of "<" or ">"')
+  }
+
+  // If it satisifes the range it is not outside
+  if (satisfies(version, range, options)) {
+    return false
+  }
+
+  // From now on, variable terms are as if we're in "gtr" mode.
+  // but note that everything is flipped for the "ltr" function.
+
+  for (var i = 0; i < range.set.length; ++i) {
+    var comparators = range.set[i]
+
+    var high = null
+    var low = null
+
+    comparators.forEach(function (comparator) {
+      if (comparator.semver === ANY) {
+        comparator = new Comparator('>=0.0.0')
+      }
+      high = high || comparator
+      low = low || comparator
+      if (gtfn(comparator.semver, high.semver, options)) {
+        high = comparator
+      } else if (ltfn(comparator.semver, low.semver, options)) {
+        low = comparator
+      }
+    })
+
+    // If the edge version comparator has a operator then our version
+    // isn't outside it
+    if (high.operator === comp || high.operator === ecomp) {
+      return false
+    }
+
+    // If the lowest version comparator has an operator and our version
+    // is less than it then it isn't higher than the range
+    if ((!low.operator || low.operator === comp) &&
+        ltefn(version, low.semver)) {
+      return false
+    } else if (low.operator === ecomp && ltfn(version, low.semver)) {
+      return false
+    }
+  }
+  return true
+}
+
+exports.prerelease = prerelease
+function prerelease (version, options) {
+  var parsed = parse(version, options)
+  return (parsed && parsed.prerelease.length) ? parsed.prerelease : null
+}
+
+exports.intersects = intersects
+function intersects (r1, r2, options) {
+  r1 = new Range(r1, options)
+  r2 = new Range(r2, options)
+  return r1.intersects(r2)
+}
+
+exports.coerce = coerce
+function coerce (version) {
+  if (version instanceof SemVer) {
+    return version
+  }
+
+  if (typeof version !== 'string') {
+    return null
+  }
+
+  var match = version.match(re[COERCE])
+
+  if (match == null) {
+    return null
+  }
+
+  return parse(match[1] +
+    '.' + (match[2] || '0') +
+    '.' + (match[3] || '0'))
+}
diff --git a/helloworld/node_modules/set-blocking/CHANGELOG.md b/helloworld/node_modules/set-blocking/CHANGELOG.md
new file mode 100755
index 0000000..03bf591
--- /dev/null
+++ b/helloworld/node_modules/set-blocking/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Change Log
+
+All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
+
+<a name="2.0.0"></a>
+# [2.0.0](https://github.com/yargs/set-blocking/compare/v1.0.0...v2.0.0) (2016-05-17)
+
+
+### Features
+
+* add an isTTY check ([#3](https://github.com/yargs/set-blocking/issues/3)) ([66ce277](https://github.com/yargs/set-blocking/commit/66ce277))
+
+
+### BREAKING CHANGES
+
+* stdio/stderr will not be set to blocking if isTTY === false
+
+
+
+<a name="1.0.0"></a>
+# 1.0.0 (2016-05-14)
+
+
+### Features
+
+* implemented shim for stream._handle.setBlocking ([6bde0c0](https://github.com/yargs/set-blocking/commit/6bde0c0))
diff --git a/helloworld/node_modules/set-blocking/LICENSE.txt b/helloworld/node_modules/set-blocking/LICENSE.txt
new file mode 100755
index 0000000..836440b
--- /dev/null
+++ b/helloworld/node_modules/set-blocking/LICENSE.txt
@@ -0,0 +1,14 @@
+Copyright (c) 2016, Contributors
+
+Permission to use, copy, modify, and/or distribute this software
+for any purpose with or without fee is hereby granted, provided
+that the above copyright notice and this permission notice
+appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE
+LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
+OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/helloworld/node_modules/set-blocking/README.md b/helloworld/node_modules/set-blocking/README.md
new file mode 100755
index 0000000..e93b420
--- /dev/null
+++ b/helloworld/node_modules/set-blocking/README.md
@@ -0,0 +1,31 @@
+# set-blocking
+
+[![Build Status](https://travis-ci.org/yargs/set-blocking.svg)](https://travis-ci.org/yargs/set-blocking)
+[![NPM version](https://img.shields.io/npm/v/set-blocking.svg)](https://www.npmjs.com/package/set-blocking)
+[![Coverage Status](https://coveralls.io/repos/yargs/set-blocking/badge.svg?branch=)](https://coveralls.io/r/yargs/set-blocking?branch=master)
+[![Standard Version](https://img.shields.io/badge/release-standard%20version-brightgreen.svg)](https://github.com/conventional-changelog/standard-version)
+
+set blocking `stdio` and `stderr` ensuring that terminal output does not truncate.
+
+```js
+const setBlocking = require('set-blocking')
+setBlocking(true)
+console.log(someLargeStringToOutput)
+```
+
+## Historical Context/Word of Warning
+
+This was created as a shim to address the bug discussed in [node #6456](https://github.com/nodejs/node/issues/6456). This bug crops up on
+newer versions of Node.js (`0.12+`), truncating terminal output.
+
+You should be mindful of the side-effects caused by using `set-blocking`:
+
+* if your module sets blocking to `true`, it will effect other modules
+  consuming your library. In [yargs](https://github.com/yargs/yargs/blob/master/yargs.js#L653) we only call
+  `setBlocking(true)` once we already know we are about to call `process.exit(code)`.
+* this patch will not apply to subprocesses spawned with `isTTY = true`, this is
+  the [default `spawn()` behavior](https://nodejs.org/api/child_process.html#child_process_child_process_spawn_command_args_options).
+
+## License
+
+ISC
diff --git a/helloworld/node_modules/set-blocking/index.js b/helloworld/node_modules/set-blocking/index.js
new file mode 100755
index 0000000..6f78774
--- /dev/null
+++ b/helloworld/node_modules/set-blocking/index.js
@@ -0,0 +1,7 @@
+module.exports = function (blocking) {
+  [process.stdout, process.stderr].forEach(function (stream) {
+    if (stream._handle && stream.isTTY && typeof stream._handle.setBlocking === 'function') {
+      stream._handle.setBlocking(blocking)
+    }
+  })
+}
diff --git a/helloworld/node_modules/socket.io-adapter/LICENSE b/helloworld/node_modules/socket.io-adapter/LICENSE
new file mode 100755
index 0000000..7e43606
--- /dev/null
+++ b/helloworld/node_modules/socket.io-adapter/LICENSE
@@ -0,0 +1,20 @@
+(The MIT License)
+
+Copyright (c) 2014 Guillermo Rauch <guillermo@learnboost.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the 'Software'), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/socket.io-adapter/Readme.md b/helloworld/node_modules/socket.io-adapter/Readme.md
new file mode 100755
index 0000000..1327723
--- /dev/null
+++ b/helloworld/node_modules/socket.io-adapter/Readme.md
@@ -0,0 +1,16 @@
+
+# socket.io-adapter
+
+Default socket.io in-memory adapter class.
+
+## How to use
+
+This module is not intended for end-user usage, but can be used as an
+interface to inherit from from other adapters you might want to build.
+
+As an example of an adapter that builds on top of this, please take a look
+at [socket.io-redis](https://github.com/learnboost/socket.io-redis).
+
+## License
+
+MIT
diff --git a/helloworld/node_modules/socket.io-adapter/index.js b/helloworld/node_modules/socket.io-adapter/index.js
new file mode 100755
index 0000000..aeb5b6e
--- /dev/null
+++ b/helloworld/node_modules/socket.io-adapter/index.js
@@ -0,0 +1,263 @@
+
+/**
+ * Module dependencies.
+ */
+
+var Emitter = require('events').EventEmitter;
+
+/**
+ * Module exports.
+ */
+
+module.exports = Adapter;
+
+/**
+ * Memory adapter constructor.
+ *
+ * @param {Namespace} nsp
+ * @api public
+ */
+
+function Adapter(nsp){
+  this.nsp = nsp;
+  this.rooms = {};
+  this.sids = {};
+  this.encoder = nsp.server.encoder;
+}
+
+/**
+ * Inherits from `EventEmitter`.
+ */
+
+Adapter.prototype.__proto__ = Emitter.prototype;
+
+/**
+ * Adds a socket to a room.
+ *
+ * @param {String} socket id
+ * @param {String} room name
+ * @param {Function} callback
+ * @api public
+ */
+
+Adapter.prototype.add = function(id, room, fn){
+  return this.addAll(id, [ room ], fn);
+};
+
+/**
+ * Adds a socket to a list of room.
+ *
+ * @param {String} socket id
+ * @param {String} rooms
+ * @param {Function} callback
+ * @api public
+ */
+
+Adapter.prototype.addAll = function(id, rooms, fn){
+  for (var i = 0; i < rooms.length; i++) {
+    var room = rooms[i];
+    this.sids[id] = this.sids[id] || {};
+    this.sids[id][room] = true;
+    this.rooms[room] = this.rooms[room] || Room();
+    this.rooms[room].add(id);
+  }
+  if (fn) process.nextTick(fn.bind(null, null));
+};
+
+/**
+ * Removes a socket from a room.
+ *
+ * @param {String} socket id
+ * @param {String} room name
+ * @param {Function} callback
+ * @api public
+ */
+
+Adapter.prototype.del = function(id, room, fn){
+  this.sids[id] = this.sids[id] || {};
+  delete this.sids[id][room];
+  if (this.rooms.hasOwnProperty(room)) {
+    this.rooms[room].del(id);
+    if (this.rooms[room].length === 0) delete this.rooms[room];
+  }
+
+  if (fn) process.nextTick(fn.bind(null, null));
+};
+
+/**
+ * Removes a socket from all rooms it's joined.
+ *
+ * @param {String} socket id
+ * @param {Function} callback
+ * @api public
+ */
+
+Adapter.prototype.delAll = function(id, fn){
+  var rooms = this.sids[id];
+  if (rooms) {
+    for (var room in rooms) {
+      if (this.rooms.hasOwnProperty(room)) {
+        this.rooms[room].del(id);
+        if (this.rooms[room].length === 0) delete this.rooms[room];
+      }
+    }
+  }
+  delete this.sids[id];
+
+  if (fn) process.nextTick(fn.bind(null, null));
+};
+
+/**
+ * Broadcasts a packet.
+ *
+ * Options:
+ *  - `flags` {Object} flags for this packet
+ *  - `except` {Array} sids that should be excluded
+ *  - `rooms` {Array} list of rooms to broadcast to
+ *
+ * @param {Object} packet object
+ * @api public
+ */
+
+Adapter.prototype.broadcast = function(packet, opts){
+  var rooms = opts.rooms || [];
+  var except = opts.except || [];
+  var flags = opts.flags || {};
+  var packetOpts = {
+    preEncoded: true,
+    volatile: flags.volatile,
+    compress: flags.compress
+  };
+  var ids = {};
+  var self = this;
+  var socket;
+
+  packet.nsp = this.nsp.name;
+  this.encoder.encode(packet, function(encodedPackets) {
+    if (rooms.length) {
+      for (var i = 0; i < rooms.length; i++) {
+        var room = self.rooms[rooms[i]];
+        if (!room) continue;
+        var sockets = room.sockets;
+        for (var id in sockets) {
+          if (sockets.hasOwnProperty(id)) {
+            if (ids[id] || ~except.indexOf(id)) continue;
+            socket = self.nsp.connected[id];
+            if (socket) {
+              socket.packet(encodedPackets, packetOpts);
+              ids[id] = true;
+            }
+          }
+        }
+      }
+    } else {
+      for (var id in self.sids) {
+        if (self.sids.hasOwnProperty(id)) {
+          if (~except.indexOf(id)) continue;
+          socket = self.nsp.connected[id];
+          if (socket) socket.packet(encodedPackets, packetOpts);
+        }
+      }
+    }
+  });
+};
+
+/**
+ * Gets a list of clients by sid.
+ *
+ * @param {Array} explicit set of rooms to check.
+ * @param {Function} callback
+ * @api public
+ */
+
+Adapter.prototype.clients = function(rooms, fn){
+  if ('function' == typeof rooms){
+    fn = rooms;
+    rooms = null;
+  }
+
+  rooms = rooms || [];
+
+  var ids = {};
+  var sids = [];
+  var socket;
+
+  if (rooms.length) {
+    for (var i = 0; i < rooms.length; i++) {
+      var room = this.rooms[rooms[i]];
+      if (!room) continue;
+      var sockets = room.sockets;
+      for (var id in sockets) {
+        if (sockets.hasOwnProperty(id)) {
+          if (ids[id]) continue;
+          socket = this.nsp.connected[id];
+          if (socket) {
+            sids.push(id);
+            ids[id] = true;
+          }
+        }
+      }
+    }
+  } else {
+    for (var id in this.sids) {
+      if (this.sids.hasOwnProperty(id)) {
+        socket = this.nsp.connected[id];
+        if (socket) sids.push(id);
+      }
+    }
+  }
+
+  if (fn) process.nextTick(fn.bind(null, null, sids));
+};
+
+/**
+ * Gets the list of rooms a given client has joined.
+ *
+ * @param {String} socket id
+ * @param {Function} callback
+ * @api public
+ */
+Adapter.prototype.clientRooms = function(id, fn){
+  var rooms = this.sids[id];
+  if (fn) process.nextTick(fn.bind(null, null, rooms ? Object.keys(rooms) : null));
+};
+
+/**
+* Room constructor.
+*
+* @api private
+*/
+
+function Room(){
+  if (!(this instanceof Room)) return new Room();
+  this.sockets = {};
+  this.length = 0;
+}
+
+/**
+ * Adds a socket to a room.
+ *
+ * @param {String} socket id
+ * @api private
+ */
+
+Room.prototype.add = function(id){
+  if (!this.sockets.hasOwnProperty(id)) {
+    this.sockets[id] = true;
+    this.length++;
+  }
+};
+
+/**
+ * Removes a socket from a room.
+ *
+ * @param {String} socket id
+ * @api private
+ */
+
+Room.prototype.del = function(id){
+  if (this.sockets.hasOwnProperty(id)) {
+    delete this.sockets[id];
+    this.length--;
+  }
+};
diff --git a/helloworld/node_modules/socket.io-adapter/package.json b/helloworld/node_modules/socket.io-adapter/package.json
new file mode 100755
index 0000000..1179466
--- /dev/null
+++ b/helloworld/node_modules/socket.io-adapter/package.json
@@ -0,0 +1,39 @@
+{
+  "_from": "socket.io-adapter@~1.1.0",
+  "_id": "socket.io-adapter@1.1.1",
+  "_inBundle": false,
+  "_integrity": "sha1-KoBeihTWNyEk3ZFZrUUC+MsH8Gs=",
+  "_location": "/socket.io-adapter",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "socket.io-adapter@~1.1.0",
+    "name": "socket.io-adapter",
+    "escapedName": "socket.io-adapter",
+    "rawSpec": "~1.1.0",
+    "saveSpec": null,
+    "fetchSpec": "~1.1.0"
+  },
+  "_requiredBy": [
+    "/socket.io"
+  ],
+  "_resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-1.1.1.tgz",
+  "_shasum": "2a805e8a14d6372124dd9159ad4502f8cb07f06b",
+  "_spec": "socket.io-adapter@~1.1.0",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/socket.io",
+  "bugs": {
+    "url": "https://github.com/socketio/socket.io-adapter/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "default socket.io in-memory adapter",
+  "homepage": "https://github.com/socketio/socket.io-adapter#readme",
+  "license": "MIT",
+  "name": "socket.io-adapter",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/socketio/socket.io-adapter.git"
+  },
+  "version": "1.1.1"
+}
diff --git a/helloworld/node_modules/socket.io-client/LICENSE b/helloworld/node_modules/socket.io-client/LICENSE
new file mode 100755
index 0000000..9338df1
--- /dev/null
+++ b/helloworld/node_modules/socket.io-client/LICENSE
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Guillermo Rauch
+
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
\ No newline at end of file
diff --git a/helloworld/node_modules/socket.io-client/README.md b/helloworld/node_modules/socket.io-client/README.md
new file mode 100755
index 0000000..b4c1856
--- /dev/null
+++ b/helloworld/node_modules/socket.io-client/README.md
@@ -0,0 +1,57 @@
+
+# socket.io-client
+
+[![Build Status](https://secure.travis-ci.org/socketio/socket.io-client.svg?branch=master)](http://travis-ci.org/socketio/socket.io-client)
+[![Dependency Status](https://david-dm.org/socketio/socket.io-client.svg)](https://david-dm.org/socketio/socket.io-client)
+[![devDependency Status](https://david-dm.org/socketio/socket.io-client/dev-status.svg)](https://david-dm.org/socketio/socket.io-client#info=devDependencies)
+[![NPM version](https://badge.fury.io/js/socket.io-client.svg)](https://www.npmjs.com/package/socket.io-client)
+![Downloads](http://img.shields.io/npm/dm/socket.io-client.svg?style=flat)
+[![](http://slack.socket.io/badge.svg?)](http://slack.socket.io)
+
+[![Sauce Test Status](https://saucelabs.com/browser-matrix/socket.svg)](https://saucelabs.com/u/socket)
+
+## How to use
+
+A standalone build of `socket.io-client` is exposed automatically by the
+socket.io server as `/socket.io/socket.io.js`. Alternatively you can
+serve the file `socket.io.js` found in the `dist` folder.
+
+```html
+<script src="/socket.io/socket.io.js"></script>
+<script>
+  var socket = io('http://localhost');
+  socket.on('connect', function(){});
+  socket.on('event', function(data){});
+  socket.on('disconnect', function(){});
+</script>
+```
+
+```js
+// with ES6 import
+import io from 'socket.io-client';
+
+const socket = io('http://localhost');
+```
+
+A slim build (without `JSON3`, a JSON polyfill for IE6/IE7, and `debug`) is also available: `socket.io.slim.js`.
+
+Socket.IO is compatible with [browserify](http://browserify.org/) and [webpack](https://webpack.js.org/) (see example [there](https://github.com/socketio/socket.io/tree/2.0.3/examples/webpack-build)).
+
+### Node.JS (server-side usage)
+
+  Add `socket.io-client` to your `package.json` and then:
+
+  ```js
+  var socket = require('socket.io-client')('http://localhost');
+  socket.on('connect', function(){});
+  socket.on('event', function(data){});
+  socket.on('disconnect', function(){});
+  ```
+
+## API
+
+See [API](/docs/API.md)
+
+## License
+
+[MIT](/LICENSE)
diff --git a/helloworld/node_modules/socket.io-client/dist/socket.io.dev.js b/helloworld/node_modules/socket.io-client/dist/socket.io.dev.js
new file mode 100755
index 0000000..d146d60
--- /dev/null
+++ b/helloworld/node_modules/socket.io-client/dist/socket.io.dev.js
@@ -0,0 +1,6620 @@
+/*!
+ * Socket.IO v2.2.0
+ * (c) 2014-2018 Guillermo Rauch
+ * Released under the MIT License.
+ */
+(function webpackUniversalModuleDefinition(root, factory) {
+	if(typeof exports === 'object' && typeof module === 'object')
+		module.exports = factory();
+	else if(typeof define === 'function' && define.amd)
+		define([], factory);
+	else if(typeof exports === 'object')
+		exports["io"] = factory();
+	else
+		root["io"] = factory();
+})(this, function() {
+return /******/ (function(modules) { // webpackBootstrap
+/******/ 	// The module cache
+/******/ 	var installedModules = {};
+/******/
+/******/ 	// The require function
+/******/ 	function __webpack_require__(moduleId) {
+/******/
+/******/ 		// Check if module is in cache
+/******/ 		if(installedModules[moduleId])
+/******/ 			return installedModules[moduleId].exports;
+/******/
+/******/ 		// Create a new module (and put it into the cache)
+/******/ 		var module = installedModules[moduleId] = {
+/******/ 			exports: {},
+/******/ 			id: moduleId,
+/******/ 			loaded: false
+/******/ 		};
+/******/
+/******/ 		// Execute the module function
+/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+/******/
+/******/ 		// Flag the module as loaded
+/******/ 		module.loaded = true;
+/******/
+/******/ 		// Return the exports of the module
+/******/ 		return module.exports;
+/******/ 	}
+/******/
+/******/
+/******/ 	// expose the modules object (__webpack_modules__)
+/******/ 	__webpack_require__.m = modules;
+/******/
+/******/ 	// expose the module cache
+/******/ 	__webpack_require__.c = installedModules;
+/******/
+/******/ 	// __webpack_public_path__
+/******/ 	__webpack_require__.p = "";
+/******/
+/******/ 	// Load entry module and return exports
+/******/ 	return __webpack_require__(0);
+/******/ })
+/************************************************************************/
+/******/ ([
+/* 0 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+	
+	/**
+	 * Module dependencies.
+	 */
+	
+	var url = __webpack_require__(1);
+	var parser = __webpack_require__(7);
+	var Manager = __webpack_require__(12);
+	var debug = __webpack_require__(3)('socket.io-client');
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = exports = lookup;
+	
+	/**
+	 * Managers cache.
+	 */
+	
+	var cache = exports.managers = {};
+	
+	/**
+	 * Looks up an existing `Manager` for multiplexing.
+	 * If the user summons:
+	 *
+	 *   `io('http://localhost/a');`
+	 *   `io('http://localhost/b');`
+	 *
+	 * We reuse the existing instance based on same scheme/port/host,
+	 * and we initialize sockets for each namespace.
+	 *
+	 * @api public
+	 */
+	
+	function lookup(uri, opts) {
+	  if ((typeof uri === 'undefined' ? 'undefined' : _typeof(uri)) === 'object') {
+	    opts = uri;
+	    uri = undefined;
+	  }
+	
+	  opts = opts || {};
+	
+	  var parsed = url(uri);
+	  var source = parsed.source;
+	  var id = parsed.id;
+	  var path = parsed.path;
+	  var sameNamespace = cache[id] && path in cache[id].nsps;
+	  var newConnection = opts.forceNew || opts['force new connection'] || false === opts.multiplex || sameNamespace;
+	
+	  var io;
+	
+	  if (newConnection) {
+	    debug('ignoring socket cache for %s', source);
+	    io = Manager(source, opts);
+	  } else {
+	    if (!cache[id]) {
+	      debug('new io instance for %s', source);
+	      cache[id] = Manager(source, opts);
+	    }
+	    io = cache[id];
+	  }
+	  if (parsed.query && !opts.query) {
+	    opts.query = parsed.query;
+	  }
+	  return io.socket(parsed.path, opts);
+	}
+	
+	/**
+	 * Protocol version.
+	 *
+	 * @api public
+	 */
+	
+	exports.protocol = parser.protocol;
+	
+	/**
+	 * `connect`.
+	 *
+	 * @param {String} uri
+	 * @api public
+	 */
+	
+	exports.connect = lookup;
+	
+	/**
+	 * Expose constructors for standalone build.
+	 *
+	 * @api public
+	 */
+	
+	exports.Manager = __webpack_require__(12);
+	exports.Socket = __webpack_require__(36);
+
+/***/ }),
+/* 1 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	/**
+	 * Module dependencies.
+	 */
+	
+	var parseuri = __webpack_require__(2);
+	var debug = __webpack_require__(3)('socket.io-client:url');
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = url;
+	
+	/**
+	 * URL parser.
+	 *
+	 * @param {String} url
+	 * @param {Object} An object meant to mimic window.location.
+	 *                 Defaults to window.location.
+	 * @api public
+	 */
+	
+	function url(uri, loc) {
+	  var obj = uri;
+	
+	  // default to window.location
+	  loc = loc || typeof location !== 'undefined' && location;
+	  if (null == uri) uri = loc.protocol + '//' + loc.host;
+	
+	  // relative path support
+	  if ('string' === typeof uri) {
+	    if ('/' === uri.charAt(0)) {
+	      if ('/' === uri.charAt(1)) {
+	        uri = loc.protocol + uri;
+	      } else {
+	        uri = loc.host + uri;
+	      }
+	    }
+	
+	    if (!/^(https?|wss?):\/\//.test(uri)) {
+	      debug('protocol-less url %s', uri);
+	      if ('undefined' !== typeof loc) {
+	        uri = loc.protocol + '//' + uri;
+	      } else {
+	        uri = 'https://' + uri;
+	      }
+	    }
+	
+	    // parse
+	    debug('parse %s', uri);
+	    obj = parseuri(uri);
+	  }
+	
+	  // make sure we treat `localhost:80` and `localhost` equally
+	  if (!obj.port) {
+	    if (/^(http|ws)$/.test(obj.protocol)) {
+	      obj.port = '80';
+	    } else if (/^(http|ws)s$/.test(obj.protocol)) {
+	      obj.port = '443';
+	    }
+	  }
+	
+	  obj.path = obj.path || '/';
+	
+	  var ipv6 = obj.host.indexOf(':') !== -1;
+	  var host = ipv6 ? '[' + obj.host + ']' : obj.host;
+	
+	  // define unique id
+	  obj.id = obj.protocol + '://' + host + ':' + obj.port;
+	  // define href
+	  obj.href = obj.protocol + '://' + host + (loc && loc.port === obj.port ? '' : ':' + obj.port);
+	
+	  return obj;
+	}
+
+/***/ }),
+/* 2 */
+/***/ (function(module, exports) {
+
+	/**
+	 * Parses an URI
+	 *
+	 * @author Steven Levithan <stevenlevithan.com> (MIT license)
+	 * @api private
+	 */
+	
+	var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
+	
+	var parts = [
+	    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'
+	];
+	
+	module.exports = function parseuri(str) {
+	    var src = str,
+	        b = str.indexOf('['),
+	        e = str.indexOf(']');
+	
+	    if (b != -1 && e != -1) {
+	        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);
+	    }
+	
+	    var m = re.exec(str || ''),
+	        uri = {},
+	        i = 14;
+	
+	    while (i--) {
+	        uri[parts[i]] = m[i] || '';
+	    }
+	
+	    if (b != -1 && e != -1) {
+	        uri.source = src;
+	        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');
+	        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');
+	        uri.ipv6uri = true;
+	    }
+	
+	    return uri;
+	};
+
+
+/***/ }),
+/* 3 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/* WEBPACK VAR INJECTION */(function(process) {/**
+	 * This is the web browser implementation of `debug()`.
+	 *
+	 * Expose `debug()` as the module.
+	 */
+	
+	exports = module.exports = __webpack_require__(5);
+	exports.log = log;
+	exports.formatArgs = formatArgs;
+	exports.save = save;
+	exports.load = load;
+	exports.useColors = useColors;
+	exports.storage = 'undefined' != typeof chrome
+	               && 'undefined' != typeof chrome.storage
+	                  ? chrome.storage.local
+	                  : localstorage();
+	
+	/**
+	 * Colors.
+	 */
+	
+	exports.colors = [
+	  '#0000CC', '#0000FF', '#0033CC', '#0033FF', '#0066CC', '#0066FF', '#0099CC',
+	  '#0099FF', '#00CC00', '#00CC33', '#00CC66', '#00CC99', '#00CCCC', '#00CCFF',
+	  '#3300CC', '#3300FF', '#3333CC', '#3333FF', '#3366CC', '#3366FF', '#3399CC',
+	  '#3399FF', '#33CC00', '#33CC33', '#33CC66', '#33CC99', '#33CCCC', '#33CCFF',
+	  '#6600CC', '#6600FF', '#6633CC', '#6633FF', '#66CC00', '#66CC33', '#9900CC',
+	  '#9900FF', '#9933CC', '#9933FF', '#99CC00', '#99CC33', '#CC0000', '#CC0033',
+	  '#CC0066', '#CC0099', '#CC00CC', '#CC00FF', '#CC3300', '#CC3333', '#CC3366',
+	  '#CC3399', '#CC33CC', '#CC33FF', '#CC6600', '#CC6633', '#CC9900', '#CC9933',
+	  '#CCCC00', '#CCCC33', '#FF0000', '#FF0033', '#FF0066', '#FF0099', '#FF00CC',
+	  '#FF00FF', '#FF3300', '#FF3333', '#FF3366', '#FF3399', '#FF33CC', '#FF33FF',
+	  '#FF6600', '#FF6633', '#FF9900', '#FF9933', '#FFCC00', '#FFCC33'
+	];
+	
+	/**
+	 * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+	 * and the Firebug extension (any Firefox version) are known
+	 * to support "%c" CSS customizations.
+	 *
+	 * TODO: add a `localStorage` variable to explicitly enable/disable colors
+	 */
+	
+	function useColors() {
+	  // NB: In an Electron preload script, document will be defined but not fully
+	  // initialized. Since we know we're in Chrome, we'll just detect this case
+	  // explicitly
+	  if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {
+	    return true;
+	  }
+	
+	  // Internet Explorer and Edge do not support colors.
+	  if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
+	    return false;
+	  }
+	
+	  // is webkit? http://stackoverflow.com/a/16459606/376773
+	  // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+	  return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
+	    // is firebug? http://stackoverflow.com/a/398120/376773
+	    (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
+	    // is firefox >= v31?
+	    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+	    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
+	    // double check webkit in userAgent just in case we are in a worker
+	    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
+	}
+	
+	/**
+	 * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+	 */
+	
+	exports.formatters.j = function(v) {
+	  try {
+	    return JSON.stringify(v);
+	  } catch (err) {
+	    return '[UnexpectedJSONParseError]: ' + err.message;
+	  }
+	};
+	
+	
+	/**
+	 * Colorize log arguments if enabled.
+	 *
+	 * @api public
+	 */
+	
+	function formatArgs(args) {
+	  var useColors = this.useColors;
+	
+	  args[0] = (useColors ? '%c' : '')
+	    + this.namespace
+	    + (useColors ? ' %c' : ' ')
+	    + args[0]
+	    + (useColors ? '%c ' : ' ')
+	    + '+' + exports.humanize(this.diff);
+	
+	  if (!useColors) return;
+	
+	  var c = 'color: ' + this.color;
+	  args.splice(1, 0, c, 'color: inherit')
+	
+	  // the final "%c" is somewhat tricky, because there could be other
+	  // arguments passed either before or after the %c, so we need to
+	  // figure out the correct index to insert the CSS into
+	  var index = 0;
+	  var lastC = 0;
+	  args[0].replace(/%[a-zA-Z%]/g, function(match) {
+	    if ('%%' === match) return;
+	    index++;
+	    if ('%c' === match) {
+	      // we only are interested in the *last* %c
+	      // (the user may have provided their own)
+	      lastC = index;
+	    }
+	  });
+	
+	  args.splice(lastC, 0, c);
+	}
+	
+	/**
+	 * Invokes `console.log()` when available.
+	 * No-op when `console.log` is not a "function".
+	 *
+	 * @api public
+	 */
+	
+	function log() {
+	  // this hackery is required for IE8/9, where
+	  // the `console.log` function doesn't have 'apply'
+	  return 'object' === typeof console
+	    && console.log
+	    && Function.prototype.apply.call(console.log, console, arguments);
+	}
+	
+	/**
+	 * Save `namespaces`.
+	 *
+	 * @param {String} namespaces
+	 * @api private
+	 */
+	
+	function save(namespaces) {
+	  try {
+	    if (null == namespaces) {
+	      exports.storage.removeItem('debug');
+	    } else {
+	      exports.storage.debug = namespaces;
+	    }
+	  } catch(e) {}
+	}
+	
+	/**
+	 * Load `namespaces`.
+	 *
+	 * @return {String} returns the previously persisted debug modes
+	 * @api private
+	 */
+	
+	function load() {
+	  var r;
+	  try {
+	    r = exports.storage.debug;
+	  } catch(e) {}
+	
+	  // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
+	  if (!r && typeof process !== 'undefined' && 'env' in process) {
+	    r = process.env.DEBUG;
+	  }
+	
+	  return r;
+	}
+	
+	/**
+	 * Enable namespaces listed in `localStorage.debug` initially.
+	 */
+	
+	exports.enable(load());
+	
+	/**
+	 * Localstorage attempts to return the localstorage.
+	 *
+	 * This is necessary because safari throws
+	 * when a user disables cookies/localstorage
+	 * and you attempt to access it.
+	 *
+	 * @return {LocalStorage}
+	 * @api private
+	 */
+	
+	function localstorage() {
+	  try {
+	    return window.localStorage;
+	  } catch (e) {}
+	}
+	
+	/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(4)))
+
+/***/ }),
+/* 4 */
+/***/ (function(module, exports) {
+
+	// shim for using process in browser
+	var process = module.exports = {};
+	
+	// cached from whatever global is present so that test runners that stub it
+	// don't break things.  But we need to wrap it in a try catch in case it is
+	// wrapped in strict mode code which doesn't define any globals.  It's inside a
+	// function because try/catches deoptimize in certain engines.
+	
+	var cachedSetTimeout;
+	var cachedClearTimeout;
+	
+	function defaultSetTimout() {
+	    throw new Error('setTimeout has not been defined');
+	}
+	function defaultClearTimeout () {
+	    throw new Error('clearTimeout has not been defined');
+	}
+	(function () {
+	    try {
+	        if (typeof setTimeout === 'function') {
+	            cachedSetTimeout = setTimeout;
+	        } else {
+	            cachedSetTimeout = defaultSetTimout;
+	        }
+	    } catch (e) {
+	        cachedSetTimeout = defaultSetTimout;
+	    }
+	    try {
+	        if (typeof clearTimeout === 'function') {
+	            cachedClearTimeout = clearTimeout;
+	        } else {
+	            cachedClearTimeout = defaultClearTimeout;
+	        }
+	    } catch (e) {
+	        cachedClearTimeout = defaultClearTimeout;
+	    }
+	} ())
+	function runTimeout(fun) {
+	    if (cachedSetTimeout === setTimeout) {
+	        //normal enviroments in sane situations
+	        return setTimeout(fun, 0);
+	    }
+	    // if setTimeout wasn't available but was latter defined
+	    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
+	        cachedSetTimeout = setTimeout;
+	        return setTimeout(fun, 0);
+	    }
+	    try {
+	        // when when somebody has screwed with setTimeout but no I.E. maddness
+	        return cachedSetTimeout(fun, 0);
+	    } catch(e){
+	        try {
+	            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
+	            return cachedSetTimeout.call(null, fun, 0);
+	        } catch(e){
+	            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
+	            return cachedSetTimeout.call(this, fun, 0);
+	        }
+	    }
+	
+	
+	}
+	function runClearTimeout(marker) {
+	    if (cachedClearTimeout === clearTimeout) {
+	        //normal enviroments in sane situations
+	        return clearTimeout(marker);
+	    }
+	    // if clearTimeout wasn't available but was latter defined
+	    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
+	        cachedClearTimeout = clearTimeout;
+	        return clearTimeout(marker);
+	    }
+	    try {
+	        // when when somebody has screwed with setTimeout but no I.E. maddness
+	        return cachedClearTimeout(marker);
+	    } catch (e){
+	        try {
+	            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
+	            return cachedClearTimeout.call(null, marker);
+	        } catch (e){
+	            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
+	            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
+	            return cachedClearTimeout.call(this, marker);
+	        }
+	    }
+	
+	
+	
+	}
+	var queue = [];
+	var draining = false;
+	var currentQueue;
+	var queueIndex = -1;
+	
+	function cleanUpNextTick() {
+	    if (!draining || !currentQueue) {
+	        return;
+	    }
+	    draining = false;
+	    if (currentQueue.length) {
+	        queue = currentQueue.concat(queue);
+	    } else {
+	        queueIndex = -1;
+	    }
+	    if (queue.length) {
+	        drainQueue();
+	    }
+	}
+	
+	function drainQueue() {
+	    if (draining) {
+	        return;
+	    }
+	    var timeout = runTimeout(cleanUpNextTick);
+	    draining = true;
+	
+	    var len = queue.length;
+	    while(len) {
+	        currentQueue = queue;
+	        queue = [];
+	        while (++queueIndex < len) {
+	            if (currentQueue) {
+	                currentQueue[queueIndex].run();
+	            }
+	        }
+	        queueIndex = -1;
+	        len = queue.length;
+	    }
+	    currentQueue = null;
+	    draining = false;
+	    runClearTimeout(timeout);
+	}
+	
+	process.nextTick = function (fun) {
+	    var args = new Array(arguments.length - 1);
+	    if (arguments.length > 1) {
+	        for (var i = 1; i < arguments.length; i++) {
+	            args[i - 1] = arguments[i];
+	        }
+	    }
+	    queue.push(new Item(fun, args));
+	    if (queue.length === 1 && !draining) {
+	        runTimeout(drainQueue);
+	    }
+	};
+	
+	// v8 likes predictible objects
+	function Item(fun, array) {
+	    this.fun = fun;
+	    this.array = array;
+	}
+	Item.prototype.run = function () {
+	    this.fun.apply(null, this.array);
+	};
+	process.title = 'browser';
+	process.browser = true;
+	process.env = {};
+	process.argv = [];
+	process.version = ''; // empty string to avoid regexp issues
+	process.versions = {};
+	
+	function noop() {}
+	
+	process.on = noop;
+	process.addListener = noop;
+	process.once = noop;
+	process.off = noop;
+	process.removeListener = noop;
+	process.removeAllListeners = noop;
+	process.emit = noop;
+	process.prependListener = noop;
+	process.prependOnceListener = noop;
+	
+	process.listeners = function (name) { return [] }
+	
+	process.binding = function (name) {
+	    throw new Error('process.binding is not supported');
+	};
+	
+	process.cwd = function () { return '/' };
+	process.chdir = function (dir) {
+	    throw new Error('process.chdir is not supported');
+	};
+	process.umask = function() { return 0; };
+
+
+/***/ }),
+/* 5 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	
+	/**
+	 * This is the common logic for both the Node.js and web browser
+	 * implementations of `debug()`.
+	 *
+	 * Expose `debug()` as the module.
+	 */
+	
+	exports = module.exports = createDebug.debug = createDebug['default'] = createDebug;
+	exports.coerce = coerce;
+	exports.disable = disable;
+	exports.enable = enable;
+	exports.enabled = enabled;
+	exports.humanize = __webpack_require__(6);
+	
+	/**
+	 * Active `debug` instances.
+	 */
+	exports.instances = [];
+	
+	/**
+	 * The currently active debug mode names, and names to skip.
+	 */
+	
+	exports.names = [];
+	exports.skips = [];
+	
+	/**
+	 * Map of special "%n" handling functions, for the debug "format" argument.
+	 *
+	 * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
+	 */
+	
+	exports.formatters = {};
+	
+	/**
+	 * Select a color.
+	 * @param {String} namespace
+	 * @return {Number}
+	 * @api private
+	 */
+	
+	function selectColor(namespace) {
+	  var hash = 0, i;
+	
+	  for (i in namespace) {
+	    hash  = ((hash << 5) - hash) + namespace.charCodeAt(i);
+	    hash |= 0; // Convert to 32bit integer
+	  }
+	
+	  return exports.colors[Math.abs(hash) % exports.colors.length];
+	}
+	
+	/**
+	 * Create a debugger with the given `namespace`.
+	 *
+	 * @param {String} namespace
+	 * @return {Function}
+	 * @api public
+	 */
+	
+	function createDebug(namespace) {
+	
+	  var prevTime;
+	
+	  function debug() {
+	    // disabled?
+	    if (!debug.enabled) return;
+	
+	    var self = debug;
+	
+	    // set `diff` timestamp
+	    var curr = +new Date();
+	    var ms = curr - (prevTime || curr);
+	    self.diff = ms;
+	    self.prev = prevTime;
+	    self.curr = curr;
+	    prevTime = curr;
+	
+	    // turn the `arguments` into a proper Array
+	    var args = new Array(arguments.length);
+	    for (var i = 0; i < args.length; i++) {
+	      args[i] = arguments[i];
+	    }
+	
+	    args[0] = exports.coerce(args[0]);
+	
+	    if ('string' !== typeof args[0]) {
+	      // anything else let's inspect with %O
+	      args.unshift('%O');
+	    }
+	
+	    // apply any `formatters` transformations
+	    var index = 0;
+	    args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {
+	      // if we encounter an escaped % then don't increase the array index
+	      if (match === '%%') return match;
+	      index++;
+	      var formatter = exports.formatters[format];
+	      if ('function' === typeof formatter) {
+	        var val = args[index];
+	        match = formatter.call(self, val);
+	
+	        // now we need to remove `args[index]` since it's inlined in the `format`
+	        args.splice(index, 1);
+	        index--;
+	      }
+	      return match;
+	    });
+	
+	    // apply env-specific formatting (colors, etc.)
+	    exports.formatArgs.call(self, args);
+	
+	    var logFn = debug.log || exports.log || console.log.bind(console);
+	    logFn.apply(self, args);
+	  }
+	
+	  debug.namespace = namespace;
+	  debug.enabled = exports.enabled(namespace);
+	  debug.useColors = exports.useColors();
+	  debug.color = selectColor(namespace);
+	  debug.destroy = destroy;
+	
+	  // env-specific initialization logic for debug instances
+	  if ('function' === typeof exports.init) {
+	    exports.init(debug);
+	  }
+	
+	  exports.instances.push(debug);
+	
+	  return debug;
+	}
+	
+	function destroy () {
+	  var index = exports.instances.indexOf(this);
+	  if (index !== -1) {
+	    exports.instances.splice(index, 1);
+	    return true;
+	  } else {
+	    return false;
+	  }
+	}
+	
+	/**
+	 * Enables a debug mode by namespaces. This can include modes
+	 * separated by a colon and wildcards.
+	 *
+	 * @param {String} namespaces
+	 * @api public
+	 */
+	
+	function enable(namespaces) {
+	  exports.save(namespaces);
+	
+	  exports.names = [];
+	  exports.skips = [];
+	
+	  var i;
+	  var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
+	  var len = split.length;
+	
+	  for (i = 0; i < len; i++) {
+	    if (!split[i]) continue; // ignore empty strings
+	    namespaces = split[i].replace(/\*/g, '.*?');
+	    if (namespaces[0] === '-') {
+	      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
+	    } else {
+	      exports.names.push(new RegExp('^' + namespaces + '$'));
+	    }
+	  }
+	
+	  for (i = 0; i < exports.instances.length; i++) {
+	    var instance = exports.instances[i];
+	    instance.enabled = exports.enabled(instance.namespace);
+	  }
+	}
+	
+	/**
+	 * Disable debug output.
+	 *
+	 * @api public
+	 */
+	
+	function disable() {
+	  exports.enable('');
+	}
+	
+	/**
+	 * Returns true if the given mode name is enabled, false otherwise.
+	 *
+	 * @param {String} name
+	 * @return {Boolean}
+	 * @api public
+	 */
+	
+	function enabled(name) {
+	  if (name[name.length - 1] === '*') {
+	    return true;
+	  }
+	  var i, len;
+	  for (i = 0, len = exports.skips.length; i < len; i++) {
+	    if (exports.skips[i].test(name)) {
+	      return false;
+	    }
+	  }
+	  for (i = 0, len = exports.names.length; i < len; i++) {
+	    if (exports.names[i].test(name)) {
+	      return true;
+	    }
+	  }
+	  return false;
+	}
+	
+	/**
+	 * Coerce `val`.
+	 *
+	 * @param {Mixed} val
+	 * @return {Mixed}
+	 * @api private
+	 */
+	
+	function coerce(val) {
+	  if (val instanceof Error) return val.stack || val.message;
+	  return val;
+	}
+
+
+/***/ }),
+/* 6 */
+/***/ (function(module, exports) {
+
+	/**
+	 * Helpers.
+	 */
+	
+	var s = 1000;
+	var m = s * 60;
+	var h = m * 60;
+	var d = h * 24;
+	var y = d * 365.25;
+	
+	/**
+	 * Parse or format the given `val`.
+	 *
+	 * Options:
+	 *
+	 *  - `long` verbose formatting [false]
+	 *
+	 * @param {String|Number} val
+	 * @param {Object} [options]
+	 * @throws {Error} throw an error if val is not a non-empty string or a number
+	 * @return {String|Number}
+	 * @api public
+	 */
+	
+	module.exports = function(val, options) {
+	  options = options || {};
+	  var type = typeof val;
+	  if (type === 'string' && val.length > 0) {
+	    return parse(val);
+	  } else if (type === 'number' && isNaN(val) === false) {
+	    return options.long ? fmtLong(val) : fmtShort(val);
+	  }
+	  throw new Error(
+	    'val is not a non-empty string or a valid number. val=' +
+	      JSON.stringify(val)
+	  );
+	};
+	
+	/**
+	 * Parse the given `str` and return milliseconds.
+	 *
+	 * @param {String} str
+	 * @return {Number}
+	 * @api private
+	 */
+	
+	function parse(str) {
+	  str = String(str);
+	  if (str.length > 100) {
+	    return;
+	  }
+	  var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(
+	    str
+	  );
+	  if (!match) {
+	    return;
+	  }
+	  var n = parseFloat(match[1]);
+	  var type = (match[2] || 'ms').toLowerCase();
+	  switch (type) {
+	    case 'years':
+	    case 'year':
+	    case 'yrs':
+	    case 'yr':
+	    case 'y':
+	      return n * y;
+	    case 'days':
+	    case 'day':
+	    case 'd':
+	      return n * d;
+	    case 'hours':
+	    case 'hour':
+	    case 'hrs':
+	    case 'hr':
+	    case 'h':
+	      return n * h;
+	    case 'minutes':
+	    case 'minute':
+	    case 'mins':
+	    case 'min':
+	    case 'm':
+	      return n * m;
+	    case 'seconds':
+	    case 'second':
+	    case 'secs':
+	    case 'sec':
+	    case 's':
+	      return n * s;
+	    case 'milliseconds':
+	    case 'millisecond':
+	    case 'msecs':
+	    case 'msec':
+	    case 'ms':
+	      return n;
+	    default:
+	      return undefined;
+	  }
+	}
+	
+	/**
+	 * Short format for `ms`.
+	 *
+	 * @param {Number} ms
+	 * @return {String}
+	 * @api private
+	 */
+	
+	function fmtShort(ms) {
+	  if (ms >= d) {
+	    return Math.round(ms / d) + 'd';
+	  }
+	  if (ms >= h) {
+	    return Math.round(ms / h) + 'h';
+	  }
+	  if (ms >= m) {
+	    return Math.round(ms / m) + 'm';
+	  }
+	  if (ms >= s) {
+	    return Math.round(ms / s) + 's';
+	  }
+	  return ms + 'ms';
+	}
+	
+	/**
+	 * Long format for `ms`.
+	 *
+	 * @param {Number} ms
+	 * @return {String}
+	 * @api private
+	 */
+	
+	function fmtLong(ms) {
+	  return plural(ms, d, 'day') ||
+	    plural(ms, h, 'hour') ||
+	    plural(ms, m, 'minute') ||
+	    plural(ms, s, 'second') ||
+	    ms + ' ms';
+	}
+	
+	/**
+	 * Pluralization helper.
+	 */
+	
+	function plural(ms, n, name) {
+	  if (ms < n) {
+	    return;
+	  }
+	  if (ms < n * 1.5) {
+	    return Math.floor(ms / n) + ' ' + name;
+	  }
+	  return Math.ceil(ms / n) + ' ' + name + 's';
+	}
+
+
+/***/ }),
+/* 7 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	
+	/**
+	 * Module dependencies.
+	 */
+	
+	var debug = __webpack_require__(3)('socket.io-parser');
+	var Emitter = __webpack_require__(8);
+	var binary = __webpack_require__(9);
+	var isArray = __webpack_require__(10);
+	var isBuf = __webpack_require__(11);
+	
+	/**
+	 * Protocol version.
+	 *
+	 * @api public
+	 */
+	
+	exports.protocol = 4;
+	
+	/**
+	 * Packet types.
+	 *
+	 * @api public
+	 */
+	
+	exports.types = [
+	  'CONNECT',
+	  'DISCONNECT',
+	  'EVENT',
+	  'ACK',
+	  'ERROR',
+	  'BINARY_EVENT',
+	  'BINARY_ACK'
+	];
+	
+	/**
+	 * Packet type `connect`.
+	 *
+	 * @api public
+	 */
+	
+	exports.CONNECT = 0;
+	
+	/**
+	 * Packet type `disconnect`.
+	 *
+	 * @api public
+	 */
+	
+	exports.DISCONNECT = 1;
+	
+	/**
+	 * Packet type `event`.
+	 *
+	 * @api public
+	 */
+	
+	exports.EVENT = 2;
+	
+	/**
+	 * Packet type `ack`.
+	 *
+	 * @api public
+	 */
+	
+	exports.ACK = 3;
+	
+	/**
+	 * Packet type `error`.
+	 *
+	 * @api public
+	 */
+	
+	exports.ERROR = 4;
+	
+	/**
+	 * Packet type 'binary event'
+	 *
+	 * @api public
+	 */
+	
+	exports.BINARY_EVENT = 5;
+	
+	/**
+	 * Packet type `binary ack`. For acks with binary arguments.
+	 *
+	 * @api public
+	 */
+	
+	exports.BINARY_ACK = 6;
+	
+	/**
+	 * Encoder constructor.
+	 *
+	 * @api public
+	 */
+	
+	exports.Encoder = Encoder;
+	
+	/**
+	 * Decoder constructor.
+	 *
+	 * @api public
+	 */
+	
+	exports.Decoder = Decoder;
+	
+	/**
+	 * A socket.io Encoder instance
+	 *
+	 * @api public
+	 */
+	
+	function Encoder() {}
+	
+	var ERROR_PACKET = exports.ERROR + '"encode error"';
+	
+	/**
+	 * Encode a packet as a single string if non-binary, or as a
+	 * buffer sequence, depending on packet type.
+	 *
+	 * @param {Object} obj - packet object
+	 * @param {Function} callback - function to handle encodings (likely engine.write)
+	 * @return Calls callback with Array of encodings
+	 * @api public
+	 */
+	
+	Encoder.prototype.encode = function(obj, callback){
+	  debug('encoding packet %j', obj);
+	
+	  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {
+	    encodeAsBinary(obj, callback);
+	  } else {
+	    var encoding = encodeAsString(obj);
+	    callback([encoding]);
+	  }
+	};
+	
+	/**
+	 * Encode packet as string.
+	 *
+	 * @param {Object} packet
+	 * @return {String} encoded
+	 * @api private
+	 */
+	
+	function encodeAsString(obj) {
+	
+	  // first is type
+	  var str = '' + obj.type;
+	
+	  // attachments if we have them
+	  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {
+	    str += obj.attachments + '-';
+	  }
+	
+	  // if we have a namespace other than `/`
+	  // we append it followed by a comma `,`
+	  if (obj.nsp && '/' !== obj.nsp) {
+	    str += obj.nsp + ',';
+	  }
+	
+	  // immediately followed by the id
+	  if (null != obj.id) {
+	    str += obj.id;
+	  }
+	
+	  // json data
+	  if (null != obj.data) {
+	    var payload = tryStringify(obj.data);
+	    if (payload !== false) {
+	      str += payload;
+	    } else {
+	      return ERROR_PACKET;
+	    }
+	  }
+	
+	  debug('encoded %j as %s', obj, str);
+	  return str;
+	}
+	
+	function tryStringify(str) {
+	  try {
+	    return JSON.stringify(str);
+	  } catch(e){
+	    return false;
+	  }
+	}
+	
+	/**
+	 * Encode packet as 'buffer sequence' by removing blobs, and
+	 * deconstructing packet into object with placeholders and
+	 * a list of buffers.
+	 *
+	 * @param {Object} packet
+	 * @return {Buffer} encoded
+	 * @api private
+	 */
+	
+	function encodeAsBinary(obj, callback) {
+	
+	  function writeEncoding(bloblessData) {
+	    var deconstruction = binary.deconstructPacket(bloblessData);
+	    var pack = encodeAsString(deconstruction.packet);
+	    var buffers = deconstruction.buffers;
+	
+	    buffers.unshift(pack); // add packet info to beginning of data list
+	    callback(buffers); // write all the buffers
+	  }
+	
+	  binary.removeBlobs(obj, writeEncoding);
+	}
+	
+	/**
+	 * A socket.io Decoder instance
+	 *
+	 * @return {Object} decoder
+	 * @api public
+	 */
+	
+	function Decoder() {
+	  this.reconstructor = null;
+	}
+	
+	/**
+	 * Mix in `Emitter` with Decoder.
+	 */
+	
+	Emitter(Decoder.prototype);
+	
+	/**
+	 * Decodes an encoded packet string into packet JSON.
+	 *
+	 * @param {String} obj - encoded packet
+	 * @return {Object} packet
+	 * @api public
+	 */
+	
+	Decoder.prototype.add = function(obj) {
+	  var packet;
+	  if (typeof obj === 'string') {
+	    packet = decodeString(obj);
+	    if (exports.BINARY_EVENT === packet.type || exports.BINARY_ACK === packet.type) { // binary packet's json
+	      this.reconstructor = new BinaryReconstructor(packet);
+	
+	      // no attachments, labeled binary but no binary data to follow
+	      if (this.reconstructor.reconPack.attachments === 0) {
+	        this.emit('decoded', packet);
+	      }
+	    } else { // non-binary full packet
+	      this.emit('decoded', packet);
+	    }
+	  } else if (isBuf(obj) || obj.base64) { // raw binary data
+	    if (!this.reconstructor) {
+	      throw new Error('got binary data when not reconstructing a packet');
+	    } else {
+	      packet = this.reconstructor.takeBinaryData(obj);
+	      if (packet) { // received final buffer
+	        this.reconstructor = null;
+	        this.emit('decoded', packet);
+	      }
+	    }
+	  } else {
+	    throw new Error('Unknown type: ' + obj);
+	  }
+	};
+	
+	/**
+	 * Decode a packet String (JSON data)
+	 *
+	 * @param {String} str
+	 * @return {Object} packet
+	 * @api private
+	 */
+	
+	function decodeString(str) {
+	  var i = 0;
+	  // look up type
+	  var p = {
+	    type: Number(str.charAt(0))
+	  };
+	
+	  if (null == exports.types[p.type]) {
+	    return error('unknown packet type ' + p.type);
+	  }
+	
+	  // look up attachments if type binary
+	  if (exports.BINARY_EVENT === p.type || exports.BINARY_ACK === p.type) {
+	    var buf = '';
+	    while (str.charAt(++i) !== '-') {
+	      buf += str.charAt(i);
+	      if (i == str.length) break;
+	    }
+	    if (buf != Number(buf) || str.charAt(i) !== '-') {
+	      throw new Error('Illegal attachments');
+	    }
+	    p.attachments = Number(buf);
+	  }
+	
+	  // look up namespace (if any)
+	  if ('/' === str.charAt(i + 1)) {
+	    p.nsp = '';
+	    while (++i) {
+	      var c = str.charAt(i);
+	      if (',' === c) break;
+	      p.nsp += c;
+	      if (i === str.length) break;
+	    }
+	  } else {
+	    p.nsp = '/';
+	  }
+	
+	  // look up id
+	  var next = str.charAt(i + 1);
+	  if ('' !== next && Number(next) == next) {
+	    p.id = '';
+	    while (++i) {
+	      var c = str.charAt(i);
+	      if (null == c || Number(c) != c) {
+	        --i;
+	        break;
+	      }
+	      p.id += str.charAt(i);
+	      if (i === str.length) break;
+	    }
+	    p.id = Number(p.id);
+	  }
+	
+	  // look up json data
+	  if (str.charAt(++i)) {
+	    var payload = tryParse(str.substr(i));
+	    var isPayloadValid = payload !== false && (p.type === exports.ERROR || isArray(payload));
+	    if (isPayloadValid) {
+	      p.data = payload;
+	    } else {
+	      return error('invalid payload');
+	    }
+	  }
+	
+	  debug('decoded %s as %j', str, p);
+	  return p;
+	}
+	
+	function tryParse(str) {
+	  try {
+	    return JSON.parse(str);
+	  } catch(e){
+	    return false;
+	  }
+	}
+	
+	/**
+	 * Deallocates a parser's resources
+	 *
+	 * @api public
+	 */
+	
+	Decoder.prototype.destroy = function() {
+	  if (this.reconstructor) {
+	    this.reconstructor.finishedReconstruction();
+	  }
+	};
+	
+	/**
+	 * A manager of a binary event's 'buffer sequence'. Should
+	 * be constructed whenever a packet of type BINARY_EVENT is
+	 * decoded.
+	 *
+	 * @param {Object} packet
+	 * @return {BinaryReconstructor} initialized reconstructor
+	 * @api private
+	 */
+	
+	function BinaryReconstructor(packet) {
+	  this.reconPack = packet;
+	  this.buffers = [];
+	}
+	
+	/**
+	 * Method to be called when binary data received from connection
+	 * after a BINARY_EVENT packet.
+	 *
+	 * @param {Buffer | ArrayBuffer} binData - the raw binary data received
+	 * @return {null | Object} returns null if more binary data is expected or
+	 *   a reconstructed packet object if all buffers have been received.
+	 * @api private
+	 */
+	
+	BinaryReconstructor.prototype.takeBinaryData = function(binData) {
+	  this.buffers.push(binData);
+	  if (this.buffers.length === this.reconPack.attachments) { // done with buffer list
+	    var packet = binary.reconstructPacket(this.reconPack, this.buffers);
+	    this.finishedReconstruction();
+	    return packet;
+	  }
+	  return null;
+	};
+	
+	/**
+	 * Cleans up binary packet reconstruction variables.
+	 *
+	 * @api private
+	 */
+	
+	BinaryReconstructor.prototype.finishedReconstruction = function() {
+	  this.reconPack = null;
+	  this.buffers = [];
+	};
+	
+	function error(msg) {
+	  return {
+	    type: exports.ERROR,
+	    data: 'parser error: ' + msg
+	  };
+	}
+
+
+/***/ }),
+/* 8 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	
+	/**
+	 * Expose `Emitter`.
+	 */
+	
+	if (true) {
+	  module.exports = Emitter;
+	}
+	
+	/**
+	 * Initialize a new `Emitter`.
+	 *
+	 * @api public
+	 */
+	
+	function Emitter(obj) {
+	  if (obj) return mixin(obj);
+	};
+	
+	/**
+	 * Mixin the emitter properties.
+	 *
+	 * @param {Object} obj
+	 * @return {Object}
+	 * @api private
+	 */
+	
+	function mixin(obj) {
+	  for (var key in Emitter.prototype) {
+	    obj[key] = Emitter.prototype[key];
+	  }
+	  return obj;
+	}
+	
+	/**
+	 * Listen on the given `event` with `fn`.
+	 *
+	 * @param {String} event
+	 * @param {Function} fn
+	 * @return {Emitter}
+	 * @api public
+	 */
+	
+	Emitter.prototype.on =
+	Emitter.prototype.addEventListener = function(event, fn){
+	  this._callbacks = this._callbacks || {};
+	  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])
+	    .push(fn);
+	  return this;
+	};
+	
+	/**
+	 * Adds an `event` listener that will be invoked a single
+	 * time then automatically removed.
+	 *
+	 * @param {String} event
+	 * @param {Function} fn
+	 * @return {Emitter}
+	 * @api public
+	 */
+	
+	Emitter.prototype.once = function(event, fn){
+	  function on() {
+	    this.off(event, on);
+	    fn.apply(this, arguments);
+	  }
+	
+	  on.fn = fn;
+	  this.on(event, on);
+	  return this;
+	};
+	
+	/**
+	 * Remove the given callback for `event` or all
+	 * registered callbacks.
+	 *
+	 * @param {String} event
+	 * @param {Function} fn
+	 * @return {Emitter}
+	 * @api public
+	 */
+	
+	Emitter.prototype.off =
+	Emitter.prototype.removeListener =
+	Emitter.prototype.removeAllListeners =
+	Emitter.prototype.removeEventListener = function(event, fn){
+	  this._callbacks = this._callbacks || {};
+	
+	  // all
+	  if (0 == arguments.length) {
+	    this._callbacks = {};
+	    return this;
+	  }
+	
+	  // specific event
+	  var callbacks = this._callbacks['$' + event];
+	  if (!callbacks) return this;
+	
+	  // remove all handlers
+	  if (1 == arguments.length) {
+	    delete this._callbacks['$' + event];
+	    return this;
+	  }
+	
+	  // remove specific handler
+	  var cb;
+	  for (var i = 0; i < callbacks.length; i++) {
+	    cb = callbacks[i];
+	    if (cb === fn || cb.fn === fn) {
+	      callbacks.splice(i, 1);
+	      break;
+	    }
+	  }
+	  return this;
+	};
+	
+	/**
+	 * Emit `event` with the given args.
+	 *
+	 * @param {String} event
+	 * @param {Mixed} ...
+	 * @return {Emitter}
+	 */
+	
+	Emitter.prototype.emit = function(event){
+	  this._callbacks = this._callbacks || {};
+	  var args = [].slice.call(arguments, 1)
+	    , callbacks = this._callbacks['$' + event];
+	
+	  if (callbacks) {
+	    callbacks = callbacks.slice(0);
+	    for (var i = 0, len = callbacks.length; i < len; ++i) {
+	      callbacks[i].apply(this, args);
+	    }
+	  }
+	
+	  return this;
+	};
+	
+	/**
+	 * Return array of callbacks for `event`.
+	 *
+	 * @param {String} event
+	 * @return {Array}
+	 * @api public
+	 */
+	
+	Emitter.prototype.listeners = function(event){
+	  this._callbacks = this._callbacks || {};
+	  return this._callbacks['$' + event] || [];
+	};
+	
+	/**
+	 * Check if this emitter has `event` handlers.
+	 *
+	 * @param {String} event
+	 * @return {Boolean}
+	 * @api public
+	 */
+	
+	Emitter.prototype.hasListeners = function(event){
+	  return !! this.listeners(event).length;
+	};
+
+
+/***/ }),
+/* 9 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/*global Blob,File*/
+	
+	/**
+	 * Module requirements
+	 */
+	
+	var isArray = __webpack_require__(10);
+	var isBuf = __webpack_require__(11);
+	var toString = Object.prototype.toString;
+	var withNativeBlob = typeof Blob === 'function' || (typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]');
+	var withNativeFile = typeof File === 'function' || (typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]');
+	
+	/**
+	 * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder.
+	 * Anything with blobs or files should be fed through removeBlobs before coming
+	 * here.
+	 *
+	 * @param {Object} packet - socket.io event packet
+	 * @return {Object} with deconstructed packet and list of buffers
+	 * @api public
+	 */
+	
+	exports.deconstructPacket = function(packet) {
+	  var buffers = [];
+	  var packetData = packet.data;
+	  var pack = packet;
+	  pack.data = _deconstructPacket(packetData, buffers);
+	  pack.attachments = buffers.length; // number of binary 'attachments'
+	  return {packet: pack, buffers: buffers};
+	};
+	
+	function _deconstructPacket(data, buffers) {
+	  if (!data) return data;
+	
+	  if (isBuf(data)) {
+	    var placeholder = { _placeholder: true, num: buffers.length };
+	    buffers.push(data);
+	    return placeholder;
+	  } else if (isArray(data)) {
+	    var newData = new Array(data.length);
+	    for (var i = 0; i < data.length; i++) {
+	      newData[i] = _deconstructPacket(data[i], buffers);
+	    }
+	    return newData;
+	  } else if (typeof data === 'object' && !(data instanceof Date)) {
+	    var newData = {};
+	    for (var key in data) {
+	      newData[key] = _deconstructPacket(data[key], buffers);
+	    }
+	    return newData;
+	  }
+	  return data;
+	}
+	
+	/**
+	 * Reconstructs a binary packet from its placeholder packet and buffers
+	 *
+	 * @param {Object} packet - event packet with placeholders
+	 * @param {Array} buffers - binary buffers to put in placeholder positions
+	 * @return {Object} reconstructed packet
+	 * @api public
+	 */
+	
+	exports.reconstructPacket = function(packet, buffers) {
+	  packet.data = _reconstructPacket(packet.data, buffers);
+	  packet.attachments = undefined; // no longer useful
+	  return packet;
+	};
+	
+	function _reconstructPacket(data, buffers) {
+	  if (!data) return data;
+	
+	  if (data && data._placeholder) {
+	    return buffers[data.num]; // appropriate buffer (should be natural order anyway)
+	  } else if (isArray(data)) {
+	    for (var i = 0; i < data.length; i++) {
+	      data[i] = _reconstructPacket(data[i], buffers);
+	    }
+	  } else if (typeof data === 'object') {
+	    for (var key in data) {
+	      data[key] = _reconstructPacket(data[key], buffers);
+	    }
+	  }
+	
+	  return data;
+	}
+	
+	/**
+	 * Asynchronously removes Blobs or Files from data via
+	 * FileReader's readAsArrayBuffer method. Used before encoding
+	 * data as msgpack. Calls callback with the blobless data.
+	 *
+	 * @param {Object} data
+	 * @param {Function} callback
+	 * @api private
+	 */
+	
+	exports.removeBlobs = function(data, callback) {
+	  function _removeBlobs(obj, curKey, containingObject) {
+	    if (!obj) return obj;
+	
+	    // convert any blob
+	    if ((withNativeBlob && obj instanceof Blob) ||
+	        (withNativeFile && obj instanceof File)) {
+	      pendingBlobs++;
+	
+	      // async filereader
+	      var fileReader = new FileReader();
+	      fileReader.onload = function() { // this.result == arraybuffer
+	        if (containingObject) {
+	          containingObject[curKey] = this.result;
+	        }
+	        else {
+	          bloblessData = this.result;
+	        }
+	
+	        // if nothing pending its callback time
+	        if(! --pendingBlobs) {
+	          callback(bloblessData);
+	        }
+	      };
+	
+	      fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer
+	    } else if (isArray(obj)) { // handle array
+	      for (var i = 0; i < obj.length; i++) {
+	        _removeBlobs(obj[i], i, obj);
+	      }
+	    } else if (typeof obj === 'object' && !isBuf(obj)) { // and object
+	      for (var key in obj) {
+	        _removeBlobs(obj[key], key, obj);
+	      }
+	    }
+	  }
+	
+	  var pendingBlobs = 0;
+	  var bloblessData = data;
+	  _removeBlobs(bloblessData);
+	  if (!pendingBlobs) {
+	    callback(bloblessData);
+	  }
+	};
+
+
+/***/ }),
+/* 10 */
+/***/ (function(module, exports) {
+
+	var toString = {}.toString;
+	
+	module.exports = Array.isArray || function (arr) {
+	  return toString.call(arr) == '[object Array]';
+	};
+
+
+/***/ }),
+/* 11 */
+/***/ (function(module, exports) {
+
+	
+	module.exports = isBuf;
+	
+	var withNativeBuffer = typeof Buffer === 'function' && typeof Buffer.isBuffer === 'function';
+	var withNativeArrayBuffer = typeof ArrayBuffer === 'function';
+	
+	var isView = function (obj) {
+	  return typeof ArrayBuffer.isView === 'function' ? ArrayBuffer.isView(obj) : (obj.buffer instanceof ArrayBuffer);
+	};
+	
+	/**
+	 * Returns true if obj is a buffer or an arraybuffer.
+	 *
+	 * @api private
+	 */
+	
+	function isBuf(obj) {
+	  return (withNativeBuffer && Buffer.isBuffer(obj)) ||
+	          (withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj)));
+	}
+
+
+/***/ }),
+/* 12 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+	
+	/**
+	 * Module dependencies.
+	 */
+	
+	var eio = __webpack_require__(13);
+	var Socket = __webpack_require__(36);
+	var Emitter = __webpack_require__(8);
+	var parser = __webpack_require__(7);
+	var on = __webpack_require__(38);
+	var bind = __webpack_require__(39);
+	var debug = __webpack_require__(3)('socket.io-client:manager');
+	var indexOf = __webpack_require__(35);
+	var Backoff = __webpack_require__(40);
+	
+	/**
+	 * IE6+ hasOwnProperty
+	 */
+	
+	var has = Object.prototype.hasOwnProperty;
+	
+	/**
+	 * Module exports
+	 */
+	
+	module.exports = Manager;
+	
+	/**
+	 * `Manager` constructor.
+	 *
+	 * @param {String} engine instance or engine uri/opts
+	 * @param {Object} options
+	 * @api public
+	 */
+	
+	function Manager(uri, opts) {
+	  if (!(this instanceof Manager)) return new Manager(uri, opts);
+	  if (uri && 'object' === (typeof uri === 'undefined' ? 'undefined' : _typeof(uri))) {
+	    opts = uri;
+	    uri = undefined;
+	  }
+	  opts = opts || {};
+	
+	  opts.path = opts.path || '/socket.io';
+	  this.nsps = {};
+	  this.subs = [];
+	  this.opts = opts;
+	  this.reconnection(opts.reconnection !== false);
+	  this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);
+	  this.reconnectionDelay(opts.reconnectionDelay || 1000);
+	  this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);
+	  this.randomizationFactor(opts.randomizationFactor || 0.5);
+	  this.backoff = new Backoff({
+	    min: this.reconnectionDelay(),
+	    max: this.reconnectionDelayMax(),
+	    jitter: this.randomizationFactor()
+	  });
+	  this.timeout(null == opts.timeout ? 20000 : opts.timeout);
+	  this.readyState = 'closed';
+	  this.uri = uri;
+	  this.connecting = [];
+	  this.lastPing = null;
+	  this.encoding = false;
+	  this.packetBuffer = [];
+	  var _parser = opts.parser || parser;
+	  this.encoder = new _parser.Encoder();
+	  this.decoder = new _parser.Decoder();
+	  this.autoConnect = opts.autoConnect !== false;
+	  if (this.autoConnect) this.open();
+	}
+	
+	/**
+	 * Propagate given event to sockets and emit on `this`
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.emitAll = function () {
+	  this.emit.apply(this, arguments);
+	  for (var nsp in this.nsps) {
+	    if (has.call(this.nsps, nsp)) {
+	      this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);
+	    }
+	  }
+	};
+	
+	/**
+	 * Update `socket.id` of all sockets
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.updateSocketIds = function () {
+	  for (var nsp in this.nsps) {
+	    if (has.call(this.nsps, nsp)) {
+	      this.nsps[nsp].id = this.generateId(nsp);
+	    }
+	  }
+	};
+	
+	/**
+	 * generate `socket.id` for the given `nsp`
+	 *
+	 * @param {String} nsp
+	 * @return {String}
+	 * @api private
+	 */
+	
+	Manager.prototype.generateId = function (nsp) {
+	  return (nsp === '/' ? '' : nsp + '#') + this.engine.id;
+	};
+	
+	/**
+	 * Mix in `Emitter`.
+	 */
+	
+	Emitter(Manager.prototype);
+	
+	/**
+	 * Sets the `reconnection` config.
+	 *
+	 * @param {Boolean} true/false if it should automatically reconnect
+	 * @return {Manager} self or value
+	 * @api public
+	 */
+	
+	Manager.prototype.reconnection = function (v) {
+	  if (!arguments.length) return this._reconnection;
+	  this._reconnection = !!v;
+	  return this;
+	};
+	
+	/**
+	 * Sets the reconnection attempts config.
+	 *
+	 * @param {Number} max reconnection attempts before giving up
+	 * @return {Manager} self or value
+	 * @api public
+	 */
+	
+	Manager.prototype.reconnectionAttempts = function (v) {
+	  if (!arguments.length) return this._reconnectionAttempts;
+	  this._reconnectionAttempts = v;
+	  return this;
+	};
+	
+	/**
+	 * Sets the delay between reconnections.
+	 *
+	 * @param {Number} delay
+	 * @return {Manager} self or value
+	 * @api public
+	 */
+	
+	Manager.prototype.reconnectionDelay = function (v) {
+	  if (!arguments.length) return this._reconnectionDelay;
+	  this._reconnectionDelay = v;
+	  this.backoff && this.backoff.setMin(v);
+	  return this;
+	};
+	
+	Manager.prototype.randomizationFactor = function (v) {
+	  if (!arguments.length) return this._randomizationFactor;
+	  this._randomizationFactor = v;
+	  this.backoff && this.backoff.setJitter(v);
+	  return this;
+	};
+	
+	/**
+	 * Sets the maximum delay between reconnections.
+	 *
+	 * @param {Number} delay
+	 * @return {Manager} self or value
+	 * @api public
+	 */
+	
+	Manager.prototype.reconnectionDelayMax = function (v) {
+	  if (!arguments.length) return this._reconnectionDelayMax;
+	  this._reconnectionDelayMax = v;
+	  this.backoff && this.backoff.setMax(v);
+	  return this;
+	};
+	
+	/**
+	 * Sets the connection timeout. `false` to disable
+	 *
+	 * @return {Manager} self or value
+	 * @api public
+	 */
+	
+	Manager.prototype.timeout = function (v) {
+	  if (!arguments.length) return this._timeout;
+	  this._timeout = v;
+	  return this;
+	};
+	
+	/**
+	 * Starts trying to reconnect if reconnection is enabled and we have not
+	 * started reconnecting yet
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.maybeReconnectOnOpen = function () {
+	  // Only try to reconnect if it's the first time we're connecting
+	  if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {
+	    // keeps reconnection from firing twice for the same reconnection loop
+	    this.reconnect();
+	  }
+	};
+	
+	/**
+	 * Sets the current transport `socket`.
+	 *
+	 * @param {Function} optional, callback
+	 * @return {Manager} self
+	 * @api public
+	 */
+	
+	Manager.prototype.open = Manager.prototype.connect = function (fn, opts) {
+	  debug('readyState %s', this.readyState);
+	  if (~this.readyState.indexOf('open')) return this;
+	
+	  debug('opening %s', this.uri);
+	  this.engine = eio(this.uri, this.opts);
+	  var socket = this.engine;
+	  var self = this;
+	  this.readyState = 'opening';
+	  this.skipReconnect = false;
+	
+	  // emit `open`
+	  var openSub = on(socket, 'open', function () {
+	    self.onopen();
+	    fn && fn();
+	  });
+	
+	  // emit `connect_error`
+	  var errorSub = on(socket, 'error', function (data) {
+	    debug('connect_error');
+	    self.cleanup();
+	    self.readyState = 'closed';
+	    self.emitAll('connect_error', data);
+	    if (fn) {
+	      var err = new Error('Connection error');
+	      err.data = data;
+	      fn(err);
+	    } else {
+	      // Only do this if there is no fn to handle the error
+	      self.maybeReconnectOnOpen();
+	    }
+	  });
+	
+	  // emit `connect_timeout`
+	  if (false !== this._timeout) {
+	    var timeout = this._timeout;
+	    debug('connect attempt will timeout after %d', timeout);
+	
+	    // set timer
+	    var timer = setTimeout(function () {
+	      debug('connect attempt timed out after %d', timeout);
+	      openSub.destroy();
+	      socket.close();
+	      socket.emit('error', 'timeout');
+	      self.emitAll('connect_timeout', timeout);
+	    }, timeout);
+	
+	    this.subs.push({
+	      destroy: function destroy() {
+	        clearTimeout(timer);
+	      }
+	    });
+	  }
+	
+	  this.subs.push(openSub);
+	  this.subs.push(errorSub);
+	
+	  return this;
+	};
+	
+	/**
+	 * Called upon transport open.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.onopen = function () {
+	  debug('open');
+	
+	  // clear old subs
+	  this.cleanup();
+	
+	  // mark as open
+	  this.readyState = 'open';
+	  this.emit('open');
+	
+	  // add new subs
+	  var socket = this.engine;
+	  this.subs.push(on(socket, 'data', bind(this, 'ondata')));
+	  this.subs.push(on(socket, 'ping', bind(this, 'onping')));
+	  this.subs.push(on(socket, 'pong', bind(this, 'onpong')));
+	  this.subs.push(on(socket, 'error', bind(this, 'onerror')));
+	  this.subs.push(on(socket, 'close', bind(this, 'onclose')));
+	  this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));
+	};
+	
+	/**
+	 * Called upon a ping.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.onping = function () {
+	  this.lastPing = new Date();
+	  this.emitAll('ping');
+	};
+	
+	/**
+	 * Called upon a packet.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.onpong = function () {
+	  this.emitAll('pong', new Date() - this.lastPing);
+	};
+	
+	/**
+	 * Called with data.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.ondata = function (data) {
+	  this.decoder.add(data);
+	};
+	
+	/**
+	 * Called when parser fully decodes a packet.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.ondecoded = function (packet) {
+	  this.emit('packet', packet);
+	};
+	
+	/**
+	 * Called upon socket error.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.onerror = function (err) {
+	  debug('error', err);
+	  this.emitAll('error', err);
+	};
+	
+	/**
+	 * Creates a new socket for the given `nsp`.
+	 *
+	 * @return {Socket}
+	 * @api public
+	 */
+	
+	Manager.prototype.socket = function (nsp, opts) {
+	  var socket = this.nsps[nsp];
+	  if (!socket) {
+	    socket = new Socket(this, nsp, opts);
+	    this.nsps[nsp] = socket;
+	    var self = this;
+	    socket.on('connecting', onConnecting);
+	    socket.on('connect', function () {
+	      socket.id = self.generateId(nsp);
+	    });
+	
+	    if (this.autoConnect) {
+	      // manually call here since connecting event is fired before listening
+	      onConnecting();
+	    }
+	  }
+	
+	  function onConnecting() {
+	    if (!~indexOf(self.connecting, socket)) {
+	      self.connecting.push(socket);
+	    }
+	  }
+	
+	  return socket;
+	};
+	
+	/**
+	 * Called upon a socket close.
+	 *
+	 * @param {Socket} socket
+	 */
+	
+	Manager.prototype.destroy = function (socket) {
+	  var index = indexOf(this.connecting, socket);
+	  if (~index) this.connecting.splice(index, 1);
+	  if (this.connecting.length) return;
+	
+	  this.close();
+	};
+	
+	/**
+	 * Writes a packet.
+	 *
+	 * @param {Object} packet
+	 * @api private
+	 */
+	
+	Manager.prototype.packet = function (packet) {
+	  debug('writing packet %j', packet);
+	  var self = this;
+	  if (packet.query && packet.type === 0) packet.nsp += '?' + packet.query;
+	
+	  if (!self.encoding) {
+	    // encode, then write to engine with result
+	    self.encoding = true;
+	    this.encoder.encode(packet, function (encodedPackets) {
+	      for (var i = 0; i < encodedPackets.length; i++) {
+	        self.engine.write(encodedPackets[i], packet.options);
+	      }
+	      self.encoding = false;
+	      self.processPacketQueue();
+	    });
+	  } else {
+	    // add packet to the queue
+	    self.packetBuffer.push(packet);
+	  }
+	};
+	
+	/**
+	 * If packet buffer is non-empty, begins encoding the
+	 * next packet in line.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.processPacketQueue = function () {
+	  if (this.packetBuffer.length > 0 && !this.encoding) {
+	    var pack = this.packetBuffer.shift();
+	    this.packet(pack);
+	  }
+	};
+	
+	/**
+	 * Clean up transport subscriptions and packet buffer.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.cleanup = function () {
+	  debug('cleanup');
+	
+	  var subsLength = this.subs.length;
+	  for (var i = 0; i < subsLength; i++) {
+	    var sub = this.subs.shift();
+	    sub.destroy();
+	  }
+	
+	  this.packetBuffer = [];
+	  this.encoding = false;
+	  this.lastPing = null;
+	
+	  this.decoder.destroy();
+	};
+	
+	/**
+	 * Close the current socket.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.close = Manager.prototype.disconnect = function () {
+	  debug('disconnect');
+	  this.skipReconnect = true;
+	  this.reconnecting = false;
+	  if ('opening' === this.readyState) {
+	    // `onclose` will not fire because
+	    // an open event never happened
+	    this.cleanup();
+	  }
+	  this.backoff.reset();
+	  this.readyState = 'closed';
+	  if (this.engine) this.engine.close();
+	};
+	
+	/**
+	 * Called upon engine close.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.onclose = function (reason) {
+	  debug('onclose');
+	
+	  this.cleanup();
+	  this.backoff.reset();
+	  this.readyState = 'closed';
+	  this.emit('close', reason);
+	
+	  if (this._reconnection && !this.skipReconnect) {
+	    this.reconnect();
+	  }
+	};
+	
+	/**
+	 * Attempt a reconnection.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.reconnect = function () {
+	  if (this.reconnecting || this.skipReconnect) return this;
+	
+	  var self = this;
+	
+	  if (this.backoff.attempts >= this._reconnectionAttempts) {
+	    debug('reconnect failed');
+	    this.backoff.reset();
+	    this.emitAll('reconnect_failed');
+	    this.reconnecting = false;
+	  } else {
+	    var delay = this.backoff.duration();
+	    debug('will wait %dms before reconnect attempt', delay);
+	
+	    this.reconnecting = true;
+	    var timer = setTimeout(function () {
+	      if (self.skipReconnect) return;
+	
+	      debug('attempting reconnect');
+	      self.emitAll('reconnect_attempt', self.backoff.attempts);
+	      self.emitAll('reconnecting', self.backoff.attempts);
+	
+	      // check again for the case socket closed in above events
+	      if (self.skipReconnect) return;
+	
+	      self.open(function (err) {
+	        if (err) {
+	          debug('reconnect attempt error');
+	          self.reconnecting = false;
+	          self.reconnect();
+	          self.emitAll('reconnect_error', err.data);
+	        } else {
+	          debug('reconnect success');
+	          self.onreconnect();
+	        }
+	      });
+	    }, delay);
+	
+	    this.subs.push({
+	      destroy: function destroy() {
+	        clearTimeout(timer);
+	      }
+	    });
+	  }
+	};
+	
+	/**
+	 * Called upon successful reconnect.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.onreconnect = function () {
+	  var attempt = this.backoff.attempts;
+	  this.reconnecting = false;
+	  this.backoff.reset();
+	  this.updateSocketIds();
+	  this.emitAll('reconnect', attempt);
+	};
+
+/***/ }),
+/* 13 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	
+	module.exports = __webpack_require__(14);
+	
+	/**
+	 * Exports parser
+	 *
+	 * @api public
+	 *
+	 */
+	module.exports.parser = __webpack_require__(21);
+
+
+/***/ }),
+/* 14 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/**
+	 * Module dependencies.
+	 */
+	
+	var transports = __webpack_require__(15);
+	var Emitter = __webpack_require__(8);
+	var debug = __webpack_require__(3)('engine.io-client:socket');
+	var index = __webpack_require__(35);
+	var parser = __webpack_require__(21);
+	var parseuri = __webpack_require__(2);
+	var parseqs = __webpack_require__(29);
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = Socket;
+	
+	/**
+	 * Socket constructor.
+	 *
+	 * @param {String|Object} uri or options
+	 * @param {Object} options
+	 * @api public
+	 */
+	
+	function Socket (uri, opts) {
+	  if (!(this instanceof Socket)) return new Socket(uri, opts);
+	
+	  opts = opts || {};
+	
+	  if (uri && 'object' === typeof uri) {
+	    opts = uri;
+	    uri = null;
+	  }
+	
+	  if (uri) {
+	    uri = parseuri(uri);
+	    opts.hostname = uri.host;
+	    opts.secure = uri.protocol === 'https' || uri.protocol === 'wss';
+	    opts.port = uri.port;
+	    if (uri.query) opts.query = uri.query;
+	  } else if (opts.host) {
+	    opts.hostname = parseuri(opts.host).host;
+	  }
+	
+	  this.secure = null != opts.secure ? opts.secure
+	    : (typeof location !== 'undefined' && 'https:' === location.protocol);
+	
+	  if (opts.hostname && !opts.port) {
+	    // if no port is specified manually, use the protocol default
+	    opts.port = this.secure ? '443' : '80';
+	  }
+	
+	  this.agent = opts.agent || false;
+	  this.hostname = opts.hostname ||
+	    (typeof location !== 'undefined' ? location.hostname : 'localhost');
+	  this.port = opts.port || (typeof location !== 'undefined' && location.port
+	      ? location.port
+	      : (this.secure ? 443 : 80));
+	  this.query = opts.query || {};
+	  if ('string' === typeof this.query) this.query = parseqs.decode(this.query);
+	  this.upgrade = false !== opts.upgrade;
+	  this.path = (opts.path || '/engine.io').replace(/\/$/, '') + '/';
+	  this.forceJSONP = !!opts.forceJSONP;
+	  this.jsonp = false !== opts.jsonp;
+	  this.forceBase64 = !!opts.forceBase64;
+	  this.enablesXDR = !!opts.enablesXDR;
+	  this.timestampParam = opts.timestampParam || 't';
+	  this.timestampRequests = opts.timestampRequests;
+	  this.transports = opts.transports || ['polling', 'websocket'];
+	  this.transportOptions = opts.transportOptions || {};
+	  this.readyState = '';
+	  this.writeBuffer = [];
+	  this.prevBufferLen = 0;
+	  this.policyPort = opts.policyPort || 843;
+	  this.rememberUpgrade = opts.rememberUpgrade || false;
+	  this.binaryType = null;
+	  this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;
+	  this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || {}) : false;
+	
+	  if (true === this.perMessageDeflate) this.perMessageDeflate = {};
+	  if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) {
+	    this.perMessageDeflate.threshold = 1024;
+	  }
+	
+	  // SSL options for Node.js client
+	  this.pfx = opts.pfx || null;
+	  this.key = opts.key || null;
+	  this.passphrase = opts.passphrase || null;
+	  this.cert = opts.cert || null;
+	  this.ca = opts.ca || null;
+	  this.ciphers = opts.ciphers || null;
+	  this.rejectUnauthorized = opts.rejectUnauthorized === undefined ? true : opts.rejectUnauthorized;
+	  this.forceNode = !!opts.forceNode;
+	
+	  // detect ReactNative environment
+	  this.isReactNative = (typeof navigator !== 'undefined' && typeof navigator.product === 'string' && navigator.product.toLowerCase() === 'reactnative');
+	
+	  // other options for Node.js or ReactNative client
+	  if (typeof self === 'undefined' || this.isReactNative) {
+	    if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) {
+	      this.extraHeaders = opts.extraHeaders;
+	    }
+	
+	    if (opts.localAddress) {
+	      this.localAddress = opts.localAddress;
+	    }
+	  }
+	
+	  // set on handshake
+	  this.id = null;
+	  this.upgrades = null;
+	  this.pingInterval = null;
+	  this.pingTimeout = null;
+	
+	  // set on heartbeat
+	  this.pingIntervalTimer = null;
+	  this.pingTimeoutTimer = null;
+	
+	  this.open();
+	}
+	
+	Socket.priorWebsocketSuccess = false;
+	
+	/**
+	 * Mix in `Emitter`.
+	 */
+	
+	Emitter(Socket.prototype);
+	
+	/**
+	 * Protocol version.
+	 *
+	 * @api public
+	 */
+	
+	Socket.protocol = parser.protocol; // this is an int
+	
+	/**
+	 * Expose deps for legacy compatibility
+	 * and standalone browser access.
+	 */
+	
+	Socket.Socket = Socket;
+	Socket.Transport = __webpack_require__(20);
+	Socket.transports = __webpack_require__(15);
+	Socket.parser = __webpack_require__(21);
+	
+	/**
+	 * Creates transport of the given type.
+	 *
+	 * @param {String} transport name
+	 * @return {Transport}
+	 * @api private
+	 */
+	
+	Socket.prototype.createTransport = function (name) {
+	  debug('creating transport "%s"', name);
+	  var query = clone(this.query);
+	
+	  // append engine.io protocol identifier
+	  query.EIO = parser.protocol;
+	
+	  // transport name
+	  query.transport = name;
+	
+	  // per-transport options
+	  var options = this.transportOptions[name] || {};
+	
+	  // session id if we already have one
+	  if (this.id) query.sid = this.id;
+	
+	  var transport = new transports[name]({
+	    query: query,
+	    socket: this,
+	    agent: options.agent || this.agent,
+	    hostname: options.hostname || this.hostname,
+	    port: options.port || this.port,
+	    secure: options.secure || this.secure,
+	    path: options.path || this.path,
+	    forceJSONP: options.forceJSONP || this.forceJSONP,
+	    jsonp: options.jsonp || this.jsonp,
+	    forceBase64: options.forceBase64 || this.forceBase64,
+	    enablesXDR: options.enablesXDR || this.enablesXDR,
+	    timestampRequests: options.timestampRequests || this.timestampRequests,
+	    timestampParam: options.timestampParam || this.timestampParam,
+	    policyPort: options.policyPort || this.policyPort,
+	    pfx: options.pfx || this.pfx,
+	    key: options.key || this.key,
+	    passphrase: options.passphrase || this.passphrase,
+	    cert: options.cert || this.cert,
+	    ca: options.ca || this.ca,
+	    ciphers: options.ciphers || this.ciphers,
+	    rejectUnauthorized: options.rejectUnauthorized || this.rejectUnauthorized,
+	    perMessageDeflate: options.perMessageDeflate || this.perMessageDeflate,
+	    extraHeaders: options.extraHeaders || this.extraHeaders,
+	    forceNode: options.forceNode || this.forceNode,
+	    localAddress: options.localAddress || this.localAddress,
+	    requestTimeout: options.requestTimeout || this.requestTimeout,
+	    protocols: options.protocols || void (0),
+	    isReactNative: this.isReactNative
+	  });
+	
+	  return transport;
+	};
+	
+	function clone (obj) {
+	  var o = {};
+	  for (var i in obj) {
+	    if (obj.hasOwnProperty(i)) {
+	      o[i] = obj[i];
+	    }
+	  }
+	  return o;
+	}
+	
+	/**
+	 * Initializes transport to use and starts probe.
+	 *
+	 * @api private
+	 */
+	Socket.prototype.open = function () {
+	  var transport;
+	  if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') !== -1) {
+	    transport = 'websocket';
+	  } else if (0 === this.transports.length) {
+	    // Emit error on next tick so it can be listened to
+	    var self = this;
+	    setTimeout(function () {
+	      self.emit('error', 'No transports available');
+	    }, 0);
+	    return;
+	  } else {
+	    transport = this.transports[0];
+	  }
+	  this.readyState = 'opening';
+	
+	  // Retry with the next transport if the transport is disabled (jsonp: false)
+	  try {
+	    transport = this.createTransport(transport);
+	  } catch (e) {
+	    this.transports.shift();
+	    this.open();
+	    return;
+	  }
+	
+	  transport.open();
+	  this.setTransport(transport);
+	};
+	
+	/**
+	 * Sets the current transport. Disables the existing one (if any).
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.setTransport = function (transport) {
+	  debug('setting transport %s', transport.name);
+	  var self = this;
+	
+	  if (this.transport) {
+	    debug('clearing existing transport %s', this.transport.name);
+	    this.transport.removeAllListeners();
+	  }
+	
+	  // set up transport
+	  this.transport = transport;
+	
+	  // set up transport listeners
+	  transport
+	  .on('drain', function () {
+	    self.onDrain();
+	  })
+	  .on('packet', function (packet) {
+	    self.onPacket(packet);
+	  })
+	  .on('error', function (e) {
+	    self.onError(e);
+	  })
+	  .on('close', function () {
+	    self.onClose('transport close');
+	  });
+	};
+	
+	/**
+	 * Probes a transport.
+	 *
+	 * @param {String} transport name
+	 * @api private
+	 */
+	
+	Socket.prototype.probe = function (name) {
+	  debug('probing transport "%s"', name);
+	  var transport = this.createTransport(name, { probe: 1 });
+	  var failed = false;
+	  var self = this;
+	
+	  Socket.priorWebsocketSuccess = false;
+	
+	  function onTransportOpen () {
+	    if (self.onlyBinaryUpgrades) {
+	      var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;
+	      failed = failed || upgradeLosesBinary;
+	    }
+	    if (failed) return;
+	
+	    debug('probe transport "%s" opened', name);
+	    transport.send([{ type: 'ping', data: 'probe' }]);
+	    transport.once('packet', function (msg) {
+	      if (failed) return;
+	      if ('pong' === msg.type && 'probe' === msg.data) {
+	        debug('probe transport "%s" pong', name);
+	        self.upgrading = true;
+	        self.emit('upgrading', transport);
+	        if (!transport) return;
+	        Socket.priorWebsocketSuccess = 'websocket' === transport.name;
+	
+	        debug('pausing current transport "%s"', self.transport.name);
+	        self.transport.pause(function () {
+	          if (failed) return;
+	          if ('closed' === self.readyState) return;
+	          debug('changing transport and sending upgrade packet');
+	
+	          cleanup();
+	
+	          self.setTransport(transport);
+	          transport.send([{ type: 'upgrade' }]);
+	          self.emit('upgrade', transport);
+	          transport = null;
+	          self.upgrading = false;
+	          self.flush();
+	        });
+	      } else {
+	        debug('probe transport "%s" failed', name);
+	        var err = new Error('probe error');
+	        err.transport = transport.name;
+	        self.emit('upgradeError', err);
+	      }
+	    });
+	  }
+	
+	  function freezeTransport () {
+	    if (failed) return;
+	
+	    // Any callback called by transport should be ignored since now
+	    failed = true;
+	
+	    cleanup();
+	
+	    transport.close();
+	    transport = null;
+	  }
+	
+	  // Handle any error that happens while probing
+	  function onerror (err) {
+	    var error = new Error('probe error: ' + err);
+	    error.transport = transport.name;
+	
+	    freezeTransport();
+	
+	    debug('probe transport "%s" failed because of error: %s', name, err);
+	
+	    self.emit('upgradeError', error);
+	  }
+	
+	  function onTransportClose () {
+	    onerror('transport closed');
+	  }
+	
+	  // When the socket is closed while we're probing
+	  function onclose () {
+	    onerror('socket closed');
+	  }
+	
+	  // When the socket is upgraded while we're probing
+	  function onupgrade (to) {
+	    if (transport && to.name !== transport.name) {
+	      debug('"%s" works - aborting "%s"', to.name, transport.name);
+	      freezeTransport();
+	    }
+	  }
+	
+	  // Remove all listeners on the transport and on self
+	  function cleanup () {
+	    transport.removeListener('open', onTransportOpen);
+	    transport.removeListener('error', onerror);
+	    transport.removeListener('close', onTransportClose);
+	    self.removeListener('close', onclose);
+	    self.removeListener('upgrading', onupgrade);
+	  }
+	
+	  transport.once('open', onTransportOpen);
+	  transport.once('error', onerror);
+	  transport.once('close', onTransportClose);
+	
+	  this.once('close', onclose);
+	  this.once('upgrading', onupgrade);
+	
+	  transport.open();
+	};
+	
+	/**
+	 * Called when connection is deemed open.
+	 *
+	 * @api public
+	 */
+	
+	Socket.prototype.onOpen = function () {
+	  debug('socket open');
+	  this.readyState = 'open';
+	  Socket.priorWebsocketSuccess = 'websocket' === this.transport.name;
+	  this.emit('open');
+	  this.flush();
+	
+	  // we check for `readyState` in case an `open`
+	  // listener already closed the socket
+	  if ('open' === this.readyState && this.upgrade && this.transport.pause) {
+	    debug('starting upgrade probes');
+	    for (var i = 0, l = this.upgrades.length; i < l; i++) {
+	      this.probe(this.upgrades[i]);
+	    }
+	  }
+	};
+	
+	/**
+	 * Handles a packet.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.onPacket = function (packet) {
+	  if ('opening' === this.readyState || 'open' === this.readyState ||
+	      'closing' === this.readyState) {
+	    debug('socket receive: type "%s", data "%s"', packet.type, packet.data);
+	
+	    this.emit('packet', packet);
+	
+	    // Socket is live - any packet counts
+	    this.emit('heartbeat');
+	
+	    switch (packet.type) {
+	      case 'open':
+	        this.onHandshake(JSON.parse(packet.data));
+	        break;
+	
+	      case 'pong':
+	        this.setPing();
+	        this.emit('pong');
+	        break;
+	
+	      case 'error':
+	        var err = new Error('server error');
+	        err.code = packet.data;
+	        this.onError(err);
+	        break;
+	
+	      case 'message':
+	        this.emit('data', packet.data);
+	        this.emit('message', packet.data);
+	        break;
+	    }
+	  } else {
+	    debug('packet received with socket readyState "%s"', this.readyState);
+	  }
+	};
+	
+	/**
+	 * Called upon handshake completion.
+	 *
+	 * @param {Object} handshake obj
+	 * @api private
+	 */
+	
+	Socket.prototype.onHandshake = function (data) {
+	  this.emit('handshake', data);
+	  this.id = data.sid;
+	  this.transport.query.sid = data.sid;
+	  this.upgrades = this.filterUpgrades(data.upgrades);
+	  this.pingInterval = data.pingInterval;
+	  this.pingTimeout = data.pingTimeout;
+	  this.onOpen();
+	  // In case open handler closes socket
+	  if ('closed' === this.readyState) return;
+	  this.setPing();
+	
+	  // Prolong liveness of socket on heartbeat
+	  this.removeListener('heartbeat', this.onHeartbeat);
+	  this.on('heartbeat', this.onHeartbeat);
+	};
+	
+	/**
+	 * Resets ping timeout.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.onHeartbeat = function (timeout) {
+	  clearTimeout(this.pingTimeoutTimer);
+	  var self = this;
+	  self.pingTimeoutTimer = setTimeout(function () {
+	    if ('closed' === self.readyState) return;
+	    self.onClose('ping timeout');
+	  }, timeout || (self.pingInterval + self.pingTimeout));
+	};
+	
+	/**
+	 * Pings server every `this.pingInterval` and expects response
+	 * within `this.pingTimeout` or closes connection.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.setPing = function () {
+	  var self = this;
+	  clearTimeout(self.pingIntervalTimer);
+	  self.pingIntervalTimer = setTimeout(function () {
+	    debug('writing ping packet - expecting pong within %sms', self.pingTimeout);
+	    self.ping();
+	    self.onHeartbeat(self.pingTimeout);
+	  }, self.pingInterval);
+	};
+	
+	/**
+	* Sends a ping packet.
+	*
+	* @api private
+	*/
+	
+	Socket.prototype.ping = function () {
+	  var self = this;
+	  this.sendPacket('ping', function () {
+	    self.emit('ping');
+	  });
+	};
+	
+	/**
+	 * Called on `drain` event
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.onDrain = function () {
+	  this.writeBuffer.splice(0, this.prevBufferLen);
+	
+	  // setting prevBufferLen = 0 is very important
+	  // for example, when upgrading, upgrade packet is sent over,
+	  // and a nonzero prevBufferLen could cause problems on `drain`
+	  this.prevBufferLen = 0;
+	
+	  if (0 === this.writeBuffer.length) {
+	    this.emit('drain');
+	  } else {
+	    this.flush();
+	  }
+	};
+	
+	/**
+	 * Flush write buffers.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.flush = function () {
+	  if ('closed' !== this.readyState && this.transport.writable &&
+	    !this.upgrading && this.writeBuffer.length) {
+	    debug('flushing %d packets in socket', this.writeBuffer.length);
+	    this.transport.send(this.writeBuffer);
+	    // keep track of current length of writeBuffer
+	    // splice writeBuffer and callbackBuffer on `drain`
+	    this.prevBufferLen = this.writeBuffer.length;
+	    this.emit('flush');
+	  }
+	};
+	
+	/**
+	 * Sends a message.
+	 *
+	 * @param {String} message.
+	 * @param {Function} callback function.
+	 * @param {Object} options.
+	 * @return {Socket} for chaining.
+	 * @api public
+	 */
+	
+	Socket.prototype.write =
+	Socket.prototype.send = function (msg, options, fn) {
+	  this.sendPacket('message', msg, options, fn);
+	  return this;
+	};
+	
+	/**
+	 * Sends a packet.
+	 *
+	 * @param {String} packet type.
+	 * @param {String} data.
+	 * @param {Object} options.
+	 * @param {Function} callback function.
+	 * @api private
+	 */
+	
+	Socket.prototype.sendPacket = function (type, data, options, fn) {
+	  if ('function' === typeof data) {
+	    fn = data;
+	    data = undefined;
+	  }
+	
+	  if ('function' === typeof options) {
+	    fn = options;
+	    options = null;
+	  }
+	
+	  if ('closing' === this.readyState || 'closed' === this.readyState) {
+	    return;
+	  }
+	
+	  options = options || {};
+	  options.compress = false !== options.compress;
+	
+	  var packet = {
+	    type: type,
+	    data: data,
+	    options: options
+	  };
+	  this.emit('packetCreate', packet);
+	  this.writeBuffer.push(packet);
+	  if (fn) this.once('flush', fn);
+	  this.flush();
+	};
+	
+	/**
+	 * Closes the connection.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.close = function () {
+	  if ('opening' === this.readyState || 'open' === this.readyState) {
+	    this.readyState = 'closing';
+	
+	    var self = this;
+	
+	    if (this.writeBuffer.length) {
+	      this.once('drain', function () {
+	        if (this.upgrading) {
+	          waitForUpgrade();
+	        } else {
+	          close();
+	        }
+	      });
+	    } else if (this.upgrading) {
+	      waitForUpgrade();
+	    } else {
+	      close();
+	    }
+	  }
+	
+	  function close () {
+	    self.onClose('forced close');
+	    debug('socket closing - telling transport to close');
+	    self.transport.close();
+	  }
+	
+	  function cleanupAndClose () {
+	    self.removeListener('upgrade', cleanupAndClose);
+	    self.removeListener('upgradeError', cleanupAndClose);
+	    close();
+	  }
+	
+	  function waitForUpgrade () {
+	    // wait for upgrade to finish since we can't send packets while pausing a transport
+	    self.once('upgrade', cleanupAndClose);
+	    self.once('upgradeError', cleanupAndClose);
+	  }
+	
+	  return this;
+	};
+	
+	/**
+	 * Called upon transport error
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.onError = function (err) {
+	  debug('socket error %j', err);
+	  Socket.priorWebsocketSuccess = false;
+	  this.emit('error', err);
+	  this.onClose('transport error', err);
+	};
+	
+	/**
+	 * Called upon transport close.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.onClose = function (reason, desc) {
+	  if ('opening' === this.readyState || 'open' === this.readyState || 'closing' === this.readyState) {
+	    debug('socket close with reason: "%s"', reason);
+	    var self = this;
+	
+	    // clear timers
+	    clearTimeout(this.pingIntervalTimer);
+	    clearTimeout(this.pingTimeoutTimer);
+	
+	    // stop event from firing again for transport
+	    this.transport.removeAllListeners('close');
+	
+	    // ensure transport won't stay open
+	    this.transport.close();
+	
+	    // ignore further transport communication
+	    this.transport.removeAllListeners();
+	
+	    // set ready state
+	    this.readyState = 'closed';
+	
+	    // clear session id
+	    this.id = null;
+	
+	    // emit close event
+	    this.emit('close', reason, desc);
+	
+	    // clean buffers after, so users can still
+	    // grab the buffers on `close` event
+	    self.writeBuffer = [];
+	    self.prevBufferLen = 0;
+	  }
+	};
+	
+	/**
+	 * Filters upgrades, returning only those matching client transports.
+	 *
+	 * @param {Array} server upgrades
+	 * @api private
+	 *
+	 */
+	
+	Socket.prototype.filterUpgrades = function (upgrades) {
+	  var filteredUpgrades = [];
+	  for (var i = 0, j = upgrades.length; i < j; i++) {
+	    if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);
+	  }
+	  return filteredUpgrades;
+	};
+
+
+/***/ }),
+/* 15 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/**
+	 * Module dependencies
+	 */
+	
+	var XMLHttpRequest = __webpack_require__(16);
+	var XHR = __webpack_require__(18);
+	var JSONP = __webpack_require__(32);
+	var websocket = __webpack_require__(33);
+	
+	/**
+	 * Export transports.
+	 */
+	
+	exports.polling = polling;
+	exports.websocket = websocket;
+	
+	/**
+	 * Polling transport polymorphic constructor.
+	 * Decides on xhr vs jsonp based on feature detection.
+	 *
+	 * @api private
+	 */
+	
+	function polling (opts) {
+	  var xhr;
+	  var xd = false;
+	  var xs = false;
+	  var jsonp = false !== opts.jsonp;
+	
+	  if (typeof location !== 'undefined') {
+	    var isSSL = 'https:' === location.protocol;
+	    var port = location.port;
+	
+	    // some user agents have empty `location.port`
+	    if (!port) {
+	      port = isSSL ? 443 : 80;
+	    }
+	
+	    xd = opts.hostname !== location.hostname || port !== opts.port;
+	    xs = opts.secure !== isSSL;
+	  }
+	
+	  opts.xdomain = xd;
+	  opts.xscheme = xs;
+	  xhr = new XMLHttpRequest(opts);
+	
+	  if ('open' in xhr && !opts.forceJSONP) {
+	    return new XHR(opts);
+	  } else {
+	    if (!jsonp) throw new Error('JSONP disabled');
+	    return new JSONP(opts);
+	  }
+	}
+
+
+/***/ }),
+/* 16 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	// browser shim for xmlhttprequest module
+	
+	var hasCORS = __webpack_require__(17);
+	
+	module.exports = function (opts) {
+	  var xdomain = opts.xdomain;
+	
+	  // scheme must be same when usign XDomainRequest
+	  // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx
+	  var xscheme = opts.xscheme;
+	
+	  // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.
+	  // https://github.com/Automattic/engine.io-client/pull/217
+	  var enablesXDR = opts.enablesXDR;
+	
+	  // XMLHttpRequest can be disabled on IE
+	  try {
+	    if ('undefined' !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {
+	      return new XMLHttpRequest();
+	    }
+	  } catch (e) { }
+	
+	  // Use XDomainRequest for IE8 if enablesXDR is true
+	  // because loading bar keeps flashing when using jsonp-polling
+	  // https://github.com/yujiosaka/socke.io-ie8-loading-example
+	  try {
+	    if ('undefined' !== typeof XDomainRequest && !xscheme && enablesXDR) {
+	      return new XDomainRequest();
+	    }
+	  } catch (e) { }
+	
+	  if (!xdomain) {
+	    try {
+	      return new self[['Active'].concat('Object').join('X')]('Microsoft.XMLHTTP');
+	    } catch (e) { }
+	  }
+	};
+
+
+/***/ }),
+/* 17 */
+/***/ (function(module, exports) {
+
+	
+	/**
+	 * Module exports.
+	 *
+	 * Logic borrowed from Modernizr:
+	 *
+	 *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js
+	 */
+	
+	try {
+	  module.exports = typeof XMLHttpRequest !== 'undefined' &&
+	    'withCredentials' in new XMLHttpRequest();
+	} catch (err) {
+	  // if XMLHttp support is disabled in IE then it will throw
+	  // when trying to create
+	  module.exports = false;
+	}
+
+
+/***/ }),
+/* 18 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/* global attachEvent */
+	
+	/**
+	 * Module requirements.
+	 */
+	
+	var XMLHttpRequest = __webpack_require__(16);
+	var Polling = __webpack_require__(19);
+	var Emitter = __webpack_require__(8);
+	var inherit = __webpack_require__(30);
+	var debug = __webpack_require__(3)('engine.io-client:polling-xhr');
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = XHR;
+	module.exports.Request = Request;
+	
+	/**
+	 * Empty function
+	 */
+	
+	function empty () {}
+	
+	/**
+	 * XHR Polling constructor.
+	 *
+	 * @param {Object} opts
+	 * @api public
+	 */
+	
+	function XHR (opts) {
+	  Polling.call(this, opts);
+	  this.requestTimeout = opts.requestTimeout;
+	  this.extraHeaders = opts.extraHeaders;
+	
+	  if (typeof location !== 'undefined') {
+	    var isSSL = 'https:' === location.protocol;
+	    var port = location.port;
+	
+	    // some user agents have empty `location.port`
+	    if (!port) {
+	      port = isSSL ? 443 : 80;
+	    }
+	
+	    this.xd = (typeof location !== 'undefined' && opts.hostname !== location.hostname) ||
+	      port !== opts.port;
+	    this.xs = opts.secure !== isSSL;
+	  }
+	}
+	
+	/**
+	 * Inherits from Polling.
+	 */
+	
+	inherit(XHR, Polling);
+	
+	/**
+	 * XHR supports binary
+	 */
+	
+	XHR.prototype.supportsBinary = true;
+	
+	/**
+	 * Creates a request.
+	 *
+	 * @param {String} method
+	 * @api private
+	 */
+	
+	XHR.prototype.request = function (opts) {
+	  opts = opts || {};
+	  opts.uri = this.uri();
+	  opts.xd = this.xd;
+	  opts.xs = this.xs;
+	  opts.agent = this.agent || false;
+	  opts.supportsBinary = this.supportsBinary;
+	  opts.enablesXDR = this.enablesXDR;
+	
+	  // SSL options for Node.js client
+	  opts.pfx = this.pfx;
+	  opts.key = this.key;
+	  opts.passphrase = this.passphrase;
+	  opts.cert = this.cert;
+	  opts.ca = this.ca;
+	  opts.ciphers = this.ciphers;
+	  opts.rejectUnauthorized = this.rejectUnauthorized;
+	  opts.requestTimeout = this.requestTimeout;
+	
+	  // other options for Node.js client
+	  opts.extraHeaders = this.extraHeaders;
+	
+	  return new Request(opts);
+	};
+	
+	/**
+	 * Sends data.
+	 *
+	 * @param {String} data to send.
+	 * @param {Function} called upon flush.
+	 * @api private
+	 */
+	
+	XHR.prototype.doWrite = function (data, fn) {
+	  var isBinary = typeof data !== 'string' && data !== undefined;
+	  var req = this.request({ method: 'POST', data: data, isBinary: isBinary });
+	  var self = this;
+	  req.on('success', fn);
+	  req.on('error', function (err) {
+	    self.onError('xhr post error', err);
+	  });
+	  this.sendXhr = req;
+	};
+	
+	/**
+	 * Starts a poll cycle.
+	 *
+	 * @api private
+	 */
+	
+	XHR.prototype.doPoll = function () {
+	  debug('xhr poll');
+	  var req = this.request();
+	  var self = this;
+	  req.on('data', function (data) {
+	    self.onData(data);
+	  });
+	  req.on('error', function (err) {
+	    self.onError('xhr poll error', err);
+	  });
+	  this.pollXhr = req;
+	};
+	
+	/**
+	 * Request constructor
+	 *
+	 * @param {Object} options
+	 * @api public
+	 */
+	
+	function Request (opts) {
+	  this.method = opts.method || 'GET';
+	  this.uri = opts.uri;
+	  this.xd = !!opts.xd;
+	  this.xs = !!opts.xs;
+	  this.async = false !== opts.async;
+	  this.data = undefined !== opts.data ? opts.data : null;
+	  this.agent = opts.agent;
+	  this.isBinary = opts.isBinary;
+	  this.supportsBinary = opts.supportsBinary;
+	  this.enablesXDR = opts.enablesXDR;
+	  this.requestTimeout = opts.requestTimeout;
+	
+	  // SSL options for Node.js client
+	  this.pfx = opts.pfx;
+	  this.key = opts.key;
+	  this.passphrase = opts.passphrase;
+	  this.cert = opts.cert;
+	  this.ca = opts.ca;
+	  this.ciphers = opts.ciphers;
+	  this.rejectUnauthorized = opts.rejectUnauthorized;
+	
+	  // other options for Node.js client
+	  this.extraHeaders = opts.extraHeaders;
+	
+	  this.create();
+	}
+	
+	/**
+	 * Mix in `Emitter`.
+	 */
+	
+	Emitter(Request.prototype);
+	
+	/**
+	 * Creates the XHR object and sends the request.
+	 *
+	 * @api private
+	 */
+	
+	Request.prototype.create = function () {
+	  var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };
+	
+	  // SSL options for Node.js client
+	  opts.pfx = this.pfx;
+	  opts.key = this.key;
+	  opts.passphrase = this.passphrase;
+	  opts.cert = this.cert;
+	  opts.ca = this.ca;
+	  opts.ciphers = this.ciphers;
+	  opts.rejectUnauthorized = this.rejectUnauthorized;
+	
+	  var xhr = this.xhr = new XMLHttpRequest(opts);
+	  var self = this;
+	
+	  try {
+	    debug('xhr open %s: %s', this.method, this.uri);
+	    xhr.open(this.method, this.uri, this.async);
+	    try {
+	      if (this.extraHeaders) {
+	        xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);
+	        for (var i in this.extraHeaders) {
+	          if (this.extraHeaders.hasOwnProperty(i)) {
+	            xhr.setRequestHeader(i, this.extraHeaders[i]);
+	          }
+	        }
+	      }
+	    } catch (e) {}
+	
+	    if ('POST' === this.method) {
+	      try {
+	        if (this.isBinary) {
+	          xhr.setRequestHeader('Content-type', 'application/octet-stream');
+	        } else {
+	          xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');
+	        }
+	      } catch (e) {}
+	    }
+	
+	    try {
+	      xhr.setRequestHeader('Accept', '*/*');
+	    } catch (e) {}
+	
+	    // ie6 check
+	    if ('withCredentials' in xhr) {
+	      xhr.withCredentials = true;
+	    }
+	
+	    if (this.requestTimeout) {
+	      xhr.timeout = this.requestTimeout;
+	    }
+	
+	    if (this.hasXDR()) {
+	      xhr.onload = function () {
+	        self.onLoad();
+	      };
+	      xhr.onerror = function () {
+	        self.onError(xhr.responseText);
+	      };
+	    } else {
+	      xhr.onreadystatechange = function () {
+	        if (xhr.readyState === 2) {
+	          try {
+	            var contentType = xhr.getResponseHeader('Content-Type');
+	            if (self.supportsBinary && contentType === 'application/octet-stream') {
+	              xhr.responseType = 'arraybuffer';
+	            }
+	          } catch (e) {}
+	        }
+	        if (4 !== xhr.readyState) return;
+	        if (200 === xhr.status || 1223 === xhr.status) {
+	          self.onLoad();
+	        } else {
+	          // make sure the `error` event handler that's user-set
+	          // does not throw in the same tick and gets caught here
+	          setTimeout(function () {
+	            self.onError(xhr.status);
+	          }, 0);
+	        }
+	      };
+	    }
+	
+	    debug('xhr data %s', this.data);
+	    xhr.send(this.data);
+	  } catch (e) {
+	    // Need to defer since .create() is called directly fhrom the constructor
+	    // and thus the 'error' event can only be only bound *after* this exception
+	    // occurs.  Therefore, also, we cannot throw here at all.
+	    setTimeout(function () {
+	      self.onError(e);
+	    }, 0);
+	    return;
+	  }
+	
+	  if (typeof document !== 'undefined') {
+	    this.index = Request.requestsCount++;
+	    Request.requests[this.index] = this;
+	  }
+	};
+	
+	/**
+	 * Called upon successful response.
+	 *
+	 * @api private
+	 */
+	
+	Request.prototype.onSuccess = function () {
+	  this.emit('success');
+	  this.cleanup();
+	};
+	
+	/**
+	 * Called if we have data.
+	 *
+	 * @api private
+	 */
+	
+	Request.prototype.onData = function (data) {
+	  this.emit('data', data);
+	  this.onSuccess();
+	};
+	
+	/**
+	 * Called upon error.
+	 *
+	 * @api private
+	 */
+	
+	Request.prototype.onError = function (err) {
+	  this.emit('error', err);
+	  this.cleanup(true);
+	};
+	
+	/**
+	 * Cleans up house.
+	 *
+	 * @api private
+	 */
+	
+	Request.prototype.cleanup = function (fromError) {
+	  if ('undefined' === typeof this.xhr || null === this.xhr) {
+	    return;
+	  }
+	  // xmlhttprequest
+	  if (this.hasXDR()) {
+	    this.xhr.onload = this.xhr.onerror = empty;
+	  } else {
+	    this.xhr.onreadystatechange = empty;
+	  }
+	
+	  if (fromError) {
+	    try {
+	      this.xhr.abort();
+	    } catch (e) {}
+	  }
+	
+	  if (typeof document !== 'undefined') {
+	    delete Request.requests[this.index];
+	  }
+	
+	  this.xhr = null;
+	};
+	
+	/**
+	 * Called upon load.
+	 *
+	 * @api private
+	 */
+	
+	Request.prototype.onLoad = function () {
+	  var data;
+	  try {
+	    var contentType;
+	    try {
+	      contentType = this.xhr.getResponseHeader('Content-Type');
+	    } catch (e) {}
+	    if (contentType === 'application/octet-stream') {
+	      data = this.xhr.response || this.xhr.responseText;
+	    } else {
+	      data = this.xhr.responseText;
+	    }
+	  } catch (e) {
+	    this.onError(e);
+	  }
+	  if (null != data) {
+	    this.onData(data);
+	  }
+	};
+	
+	/**
+	 * Check if it has XDomainRequest.
+	 *
+	 * @api private
+	 */
+	
+	Request.prototype.hasXDR = function () {
+	  return typeof XDomainRequest !== 'undefined' && !this.xs && this.enablesXDR;
+	};
+	
+	/**
+	 * Aborts the request.
+	 *
+	 * @api public
+	 */
+	
+	Request.prototype.abort = function () {
+	  this.cleanup();
+	};
+	
+	/**
+	 * Aborts pending requests when unloading the window. This is needed to prevent
+	 * memory leaks (e.g. when using IE) and to ensure that no spurious error is
+	 * emitted.
+	 */
+	
+	Request.requestsCount = 0;
+	Request.requests = {};
+	
+	if (typeof document !== 'undefined') {
+	  if (typeof attachEvent === 'function') {
+	    attachEvent('onunload', unloadHandler);
+	  } else if (typeof addEventListener === 'function') {
+	    var terminationEvent = 'onpagehide' in self ? 'pagehide' : 'unload';
+	    addEventListener(terminationEvent, unloadHandler, false);
+	  }
+	}
+	
+	function unloadHandler () {
+	  for (var i in Request.requests) {
+	    if (Request.requests.hasOwnProperty(i)) {
+	      Request.requests[i].abort();
+	    }
+	  }
+	}
+
+
+/***/ }),
+/* 19 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/**
+	 * Module dependencies.
+	 */
+	
+	var Transport = __webpack_require__(20);
+	var parseqs = __webpack_require__(29);
+	var parser = __webpack_require__(21);
+	var inherit = __webpack_require__(30);
+	var yeast = __webpack_require__(31);
+	var debug = __webpack_require__(3)('engine.io-client:polling');
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = Polling;
+	
+	/**
+	 * Is XHR2 supported?
+	 */
+	
+	var hasXHR2 = (function () {
+	  var XMLHttpRequest = __webpack_require__(16);
+	  var xhr = new XMLHttpRequest({ xdomain: false });
+	  return null != xhr.responseType;
+	})();
+	
+	/**
+	 * Polling interface.
+	 *
+	 * @param {Object} opts
+	 * @api private
+	 */
+	
+	function Polling (opts) {
+	  var forceBase64 = (opts && opts.forceBase64);
+	  if (!hasXHR2 || forceBase64) {
+	    this.supportsBinary = false;
+	  }
+	  Transport.call(this, opts);
+	}
+	
+	/**
+	 * Inherits from Transport.
+	 */
+	
+	inherit(Polling, Transport);
+	
+	/**
+	 * Transport name.
+	 */
+	
+	Polling.prototype.name = 'polling';
+	
+	/**
+	 * Opens the socket (triggers polling). We write a PING message to determine
+	 * when the transport is open.
+	 *
+	 * @api private
+	 */
+	
+	Polling.prototype.doOpen = function () {
+	  this.poll();
+	};
+	
+	/**
+	 * Pauses polling.
+	 *
+	 * @param {Function} callback upon buffers are flushed and transport is paused
+	 * @api private
+	 */
+	
+	Polling.prototype.pause = function (onPause) {
+	  var self = this;
+	
+	  this.readyState = 'pausing';
+	
+	  function pause () {
+	    debug('paused');
+	    self.readyState = 'paused';
+	    onPause();
+	  }
+	
+	  if (this.polling || !this.writable) {
+	    var total = 0;
+	
+	    if (this.polling) {
+	      debug('we are currently polling - waiting to pause');
+	      total++;
+	      this.once('pollComplete', function () {
+	        debug('pre-pause polling complete');
+	        --total || pause();
+	      });
+	    }
+	
+	    if (!this.writable) {
+	      debug('we are currently writing - waiting to pause');
+	      total++;
+	      this.once('drain', function () {
+	        debug('pre-pause writing complete');
+	        --total || pause();
+	      });
+	    }
+	  } else {
+	    pause();
+	  }
+	};
+	
+	/**
+	 * Starts polling cycle.
+	 *
+	 * @api public
+	 */
+	
+	Polling.prototype.poll = function () {
+	  debug('polling');
+	  this.polling = true;
+	  this.doPoll();
+	  this.emit('poll');
+	};
+	
+	/**
+	 * Overloads onData to detect payloads.
+	 *
+	 * @api private
+	 */
+	
+	Polling.prototype.onData = function (data) {
+	  var self = this;
+	  debug('polling got data %s', data);
+	  var callback = function (packet, index, total) {
+	    // if its the first message we consider the transport open
+	    if ('opening' === self.readyState) {
+	      self.onOpen();
+	    }
+	
+	    // if its a close packet, we close the ongoing requests
+	    if ('close' === packet.type) {
+	      self.onClose();
+	      return false;
+	    }
+	
+	    // otherwise bypass onData and handle the message
+	    self.onPacket(packet);
+	  };
+	
+	  // decode payload
+	  parser.decodePayload(data, this.socket.binaryType, callback);
+	
+	  // if an event did not trigger closing
+	  if ('closed' !== this.readyState) {
+	    // if we got data we're not polling
+	    this.polling = false;
+	    this.emit('pollComplete');
+	
+	    if ('open' === this.readyState) {
+	      this.poll();
+	    } else {
+	      debug('ignoring poll - transport state "%s"', this.readyState);
+	    }
+	  }
+	};
+	
+	/**
+	 * For polling, send a close packet.
+	 *
+	 * @api private
+	 */
+	
+	Polling.prototype.doClose = function () {
+	  var self = this;
+	
+	  function close () {
+	    debug('writing close packet');
+	    self.write([{ type: 'close' }]);
+	  }
+	
+	  if ('open' === this.readyState) {
+	    debug('transport open - closing');
+	    close();
+	  } else {
+	    // in case we're trying to close while
+	    // handshaking is in progress (GH-164)
+	    debug('transport not open - deferring close');
+	    this.once('open', close);
+	  }
+	};
+	
+	/**
+	 * Writes a packets payload.
+	 *
+	 * @param {Array} data packets
+	 * @param {Function} drain callback
+	 * @api private
+	 */
+	
+	Polling.prototype.write = function (packets) {
+	  var self = this;
+	  this.writable = false;
+	  var callbackfn = function () {
+	    self.writable = true;
+	    self.emit('drain');
+	  };
+	
+	  parser.encodePayload(packets, this.supportsBinary, function (data) {
+	    self.doWrite(data, callbackfn);
+	  });
+	};
+	
+	/**
+	 * Generates uri for connection.
+	 *
+	 * @api private
+	 */
+	
+	Polling.prototype.uri = function () {
+	  var query = this.query || {};
+	  var schema = this.secure ? 'https' : 'http';
+	  var port = '';
+	
+	  // cache busting is forced
+	  if (false !== this.timestampRequests) {
+	    query[this.timestampParam] = yeast();
+	  }
+	
+	  if (!this.supportsBinary && !query.sid) {
+	    query.b64 = 1;
+	  }
+	
+	  query = parseqs.encode(query);
+	
+	  // avoid port if default for schema
+	  if (this.port && (('https' === schema && Number(this.port) !== 443) ||
+	     ('http' === schema && Number(this.port) !== 80))) {
+	    port = ':' + this.port;
+	  }
+	
+	  // prepend ? to query
+	  if (query.length) {
+	    query = '?' + query;
+	  }
+	
+	  var ipv6 = this.hostname.indexOf(':') !== -1;
+	  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;
+	};
+
+
+/***/ }),
+/* 20 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/**
+	 * Module dependencies.
+	 */
+	
+	var parser = __webpack_require__(21);
+	var Emitter = __webpack_require__(8);
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = Transport;
+	
+	/**
+	 * Transport abstract constructor.
+	 *
+	 * @param {Object} options.
+	 * @api private
+	 */
+	
+	function Transport (opts) {
+	  this.path = opts.path;
+	  this.hostname = opts.hostname;
+	  this.port = opts.port;
+	  this.secure = opts.secure;
+	  this.query = opts.query;
+	  this.timestampParam = opts.timestampParam;
+	  this.timestampRequests = opts.timestampRequests;
+	  this.readyState = '';
+	  this.agent = opts.agent || false;
+	  this.socket = opts.socket;
+	  this.enablesXDR = opts.enablesXDR;
+	
+	  // SSL options for Node.js client
+	  this.pfx = opts.pfx;
+	  this.key = opts.key;
+	  this.passphrase = opts.passphrase;
+	  this.cert = opts.cert;
+	  this.ca = opts.ca;
+	  this.ciphers = opts.ciphers;
+	  this.rejectUnauthorized = opts.rejectUnauthorized;
+	  this.forceNode = opts.forceNode;
+	
+	  // results of ReactNative environment detection
+	  this.isReactNative = opts.isReactNative;
+	
+	  // other options for Node.js client
+	  this.extraHeaders = opts.extraHeaders;
+	  this.localAddress = opts.localAddress;
+	}
+	
+	/**
+	 * Mix in `Emitter`.
+	 */
+	
+	Emitter(Transport.prototype);
+	
+	/**
+	 * Emits an error.
+	 *
+	 * @param {String} str
+	 * @return {Transport} for chaining
+	 * @api public
+	 */
+	
+	Transport.prototype.onError = function (msg, desc) {
+	  var err = new Error(msg);
+	  err.type = 'TransportError';
+	  err.description = desc;
+	  this.emit('error', err);
+	  return this;
+	};
+	
+	/**
+	 * Opens the transport.
+	 *
+	 * @api public
+	 */
+	
+	Transport.prototype.open = function () {
+	  if ('closed' === this.readyState || '' === this.readyState) {
+	    this.readyState = 'opening';
+	    this.doOpen();
+	  }
+	
+	  return this;
+	};
+	
+	/**
+	 * Closes the transport.
+	 *
+	 * @api private
+	 */
+	
+	Transport.prototype.close = function () {
+	  if ('opening' === this.readyState || 'open' === this.readyState) {
+	    this.doClose();
+	    this.onClose();
+	  }
+	
+	  return this;
+	};
+	
+	/**
+	 * Sends multiple packets.
+	 *
+	 * @param {Array} packets
+	 * @api private
+	 */
+	
+	Transport.prototype.send = function (packets) {
+	  if ('open' === this.readyState) {
+	    this.write(packets);
+	  } else {
+	    throw new Error('Transport not open');
+	  }
+	};
+	
+	/**
+	 * Called upon open
+	 *
+	 * @api private
+	 */
+	
+	Transport.prototype.onOpen = function () {
+	  this.readyState = 'open';
+	  this.writable = true;
+	  this.emit('open');
+	};
+	
+	/**
+	 * Called with data.
+	 *
+	 * @param {String} data
+	 * @api private
+	 */
+	
+	Transport.prototype.onData = function (data) {
+	  var packet = parser.decodePacket(data, this.socket.binaryType);
+	  this.onPacket(packet);
+	};
+	
+	/**
+	 * Called with a decoded packet.
+	 */
+	
+	Transport.prototype.onPacket = function (packet) {
+	  this.emit('packet', packet);
+	};
+	
+	/**
+	 * Called upon close.
+	 *
+	 * @api private
+	 */
+	
+	Transport.prototype.onClose = function () {
+	  this.readyState = 'closed';
+	  this.emit('close');
+	};
+
+
+/***/ }),
+/* 21 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/**
+	 * Module dependencies.
+	 */
+	
+	var keys = __webpack_require__(22);
+	var hasBinary = __webpack_require__(23);
+	var sliceBuffer = __webpack_require__(24);
+	var after = __webpack_require__(25);
+	var utf8 = __webpack_require__(26);
+	
+	var base64encoder;
+	if (typeof ArrayBuffer !== 'undefined') {
+	  base64encoder = __webpack_require__(27);
+	}
+	
+	/**
+	 * Check if we are running an android browser. That requires us to use
+	 * ArrayBuffer with polling transports...
+	 *
+	 * http://ghinda.net/jpeg-blob-ajax-android/
+	 */
+	
+	var isAndroid = typeof navigator !== 'undefined' && /Android/i.test(navigator.userAgent);
+	
+	/**
+	 * Check if we are running in PhantomJS.
+	 * Uploading a Blob with PhantomJS does not work correctly, as reported here:
+	 * https://github.com/ariya/phantomjs/issues/11395
+	 * @type boolean
+	 */
+	var isPhantomJS = typeof navigator !== 'undefined' && /PhantomJS/i.test(navigator.userAgent);
+	
+	/**
+	 * When true, avoids using Blobs to encode payloads.
+	 * @type boolean
+	 */
+	var dontSendBlobs = isAndroid || isPhantomJS;
+	
+	/**
+	 * Current protocol version.
+	 */
+	
+	exports.protocol = 3;
+	
+	/**
+	 * Packet types.
+	 */
+	
+	var packets = exports.packets = {
+	    open:     0    // non-ws
+	  , close:    1    // non-ws
+	  , ping:     2
+	  , pong:     3
+	  , message:  4
+	  , upgrade:  5
+	  , noop:     6
+	};
+	
+	var packetslist = keys(packets);
+	
+	/**
+	 * Premade error packet.
+	 */
+	
+	var err = { type: 'error', data: 'parser error' };
+	
+	/**
+	 * Create a blob api even for blob builder when vendor prefixes exist
+	 */
+	
+	var Blob = __webpack_require__(28);
+	
+	/**
+	 * Encodes a packet.
+	 *
+	 *     <packet type id> [ <data> ]
+	 *
+	 * Example:
+	 *
+	 *     5hello world
+	 *     3
+	 *     4
+	 *
+	 * Binary is encoded in an identical principle
+	 *
+	 * @api private
+	 */
+	
+	exports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {
+	  if (typeof supportsBinary === 'function') {
+	    callback = supportsBinary;
+	    supportsBinary = false;
+	  }
+	
+	  if (typeof utf8encode === 'function') {
+	    callback = utf8encode;
+	    utf8encode = null;
+	  }
+	
+	  var data = (packet.data === undefined)
+	    ? undefined
+	    : packet.data.buffer || packet.data;
+	
+	  if (typeof ArrayBuffer !== 'undefined' && data instanceof ArrayBuffer) {
+	    return encodeArrayBuffer(packet, supportsBinary, callback);
+	  } else if (typeof Blob !== 'undefined' && data instanceof Blob) {
+	    return encodeBlob(packet, supportsBinary, callback);
+	  }
+	
+	  // might be an object with { base64: true, data: dataAsBase64String }
+	  if (data && data.base64) {
+	    return encodeBase64Object(packet, callback);
+	  }
+	
+	  // Sending data as a utf-8 string
+	  var encoded = packets[packet.type];
+	
+	  // data fragment is optional
+	  if (undefined !== packet.data) {
+	    encoded += utf8encode ? utf8.encode(String(packet.data), { strict: false }) : String(packet.data);
+	  }
+	
+	  return callback('' + encoded);
+	
+	};
+	
+	function encodeBase64Object(packet, callback) {
+	  // packet data is an object { base64: true, data: dataAsBase64String }
+	  var message = 'b' + exports.packets[packet.type] + packet.data.data;
+	  return callback(message);
+	}
+	
+	/**
+	 * Encode packet helpers for binary types
+	 */
+	
+	function encodeArrayBuffer(packet, supportsBinary, callback) {
+	  if (!supportsBinary) {
+	    return exports.encodeBase64Packet(packet, callback);
+	  }
+	
+	  var data = packet.data;
+	  var contentArray = new Uint8Array(data);
+	  var resultBuffer = new Uint8Array(1 + data.byteLength);
+	
+	  resultBuffer[0] = packets[packet.type];
+	  for (var i = 0; i < contentArray.length; i++) {
+	    resultBuffer[i+1] = contentArray[i];
+	  }
+	
+	  return callback(resultBuffer.buffer);
+	}
+	
+	function encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {
+	  if (!supportsBinary) {
+	    return exports.encodeBase64Packet(packet, callback);
+	  }
+	
+	  var fr = new FileReader();
+	  fr.onload = function() {
+	    exports.encodePacket({ type: packet.type, data: fr.result }, supportsBinary, true, callback);
+	  };
+	  return fr.readAsArrayBuffer(packet.data);
+	}
+	
+	function encodeBlob(packet, supportsBinary, callback) {
+	  if (!supportsBinary) {
+	    return exports.encodeBase64Packet(packet, callback);
+	  }
+	
+	  if (dontSendBlobs) {
+	    return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);
+	  }
+	
+	  var length = new Uint8Array(1);
+	  length[0] = packets[packet.type];
+	  var blob = new Blob([length.buffer, packet.data]);
+	
+	  return callback(blob);
+	}
+	
+	/**
+	 * Encodes a packet with binary data in a base64 string
+	 *
+	 * @param {Object} packet, has `type` and `data`
+	 * @return {String} base64 encoded message
+	 */
+	
+	exports.encodeBase64Packet = function(packet, callback) {
+	  var message = 'b' + exports.packets[packet.type];
+	  if (typeof Blob !== 'undefined' && packet.data instanceof Blob) {
+	    var fr = new FileReader();
+	    fr.onload = function() {
+	      var b64 = fr.result.split(',')[1];
+	      callback(message + b64);
+	    };
+	    return fr.readAsDataURL(packet.data);
+	  }
+	
+	  var b64data;
+	  try {
+	    b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));
+	  } catch (e) {
+	    // iPhone Safari doesn't let you apply with typed arrays
+	    var typed = new Uint8Array(packet.data);
+	    var basic = new Array(typed.length);
+	    for (var i = 0; i < typed.length; i++) {
+	      basic[i] = typed[i];
+	    }
+	    b64data = String.fromCharCode.apply(null, basic);
+	  }
+	  message += btoa(b64data);
+	  return callback(message);
+	};
+	
+	/**
+	 * Decodes a packet. Changes format to Blob if requested.
+	 *
+	 * @return {Object} with `type` and `data` (if any)
+	 * @api private
+	 */
+	
+	exports.decodePacket = function (data, binaryType, utf8decode) {
+	  if (data === undefined) {
+	    return err;
+	  }
+	  // String data
+	  if (typeof data === 'string') {
+	    if (data.charAt(0) === 'b') {
+	      return exports.decodeBase64Packet(data.substr(1), binaryType);
+	    }
+	
+	    if (utf8decode) {
+	      data = tryDecode(data);
+	      if (data === false) {
+	        return err;
+	      }
+	    }
+	    var type = data.charAt(0);
+	
+	    if (Number(type) != type || !packetslist[type]) {
+	      return err;
+	    }
+	
+	    if (data.length > 1) {
+	      return { type: packetslist[type], data: data.substring(1) };
+	    } else {
+	      return { type: packetslist[type] };
+	    }
+	  }
+	
+	  var asArray = new Uint8Array(data);
+	  var type = asArray[0];
+	  var rest = sliceBuffer(data, 1);
+	  if (Blob && binaryType === 'blob') {
+	    rest = new Blob([rest]);
+	  }
+	  return { type: packetslist[type], data: rest };
+	};
+	
+	function tryDecode(data) {
+	  try {
+	    data = utf8.decode(data, { strict: false });
+	  } catch (e) {
+	    return false;
+	  }
+	  return data;
+	}
+	
+	/**
+	 * Decodes a packet encoded in a base64 string
+	 *
+	 * @param {String} base64 encoded message
+	 * @return {Object} with `type` and `data` (if any)
+	 */
+	
+	exports.decodeBase64Packet = function(msg, binaryType) {
+	  var type = packetslist[msg.charAt(0)];
+	  if (!base64encoder) {
+	    return { type: type, data: { base64: true, data: msg.substr(1) } };
+	  }
+	
+	  var data = base64encoder.decode(msg.substr(1));
+	
+	  if (binaryType === 'blob' && Blob) {
+	    data = new Blob([data]);
+	  }
+	
+	  return { type: type, data: data };
+	};
+	
+	/**
+	 * Encodes multiple messages (payload).
+	 *
+	 *     <length>:data
+	 *
+	 * Example:
+	 *
+	 *     11:hello world2:hi
+	 *
+	 * If any contents are binary, they will be encoded as base64 strings. Base64
+	 * encoded strings are marked with a b before the length specifier
+	 *
+	 * @param {Array} packets
+	 * @api private
+	 */
+	
+	exports.encodePayload = function (packets, supportsBinary, callback) {
+	  if (typeof supportsBinary === 'function') {
+	    callback = supportsBinary;
+	    supportsBinary = null;
+	  }
+	
+	  var isBinary = hasBinary(packets);
+	
+	  if (supportsBinary && isBinary) {
+	    if (Blob && !dontSendBlobs) {
+	      return exports.encodePayloadAsBlob(packets, callback);
+	    }
+	
+	    return exports.encodePayloadAsArrayBuffer(packets, callback);
+	  }
+	
+	  if (!packets.length) {
+	    return callback('0:');
+	  }
+	
+	  function setLengthHeader(message) {
+	    return message.length + ':' + message;
+	  }
+	
+	  function encodeOne(packet, doneCallback) {
+	    exports.encodePacket(packet, !isBinary ? false : supportsBinary, false, function(message) {
+	      doneCallback(null, setLengthHeader(message));
+	    });
+	  }
+	
+	  map(packets, encodeOne, function(err, results) {
+	    return callback(results.join(''));
+	  });
+	};
+	
+	/**
+	 * Async array map using after
+	 */
+	
+	function map(ary, each, done) {
+	  var result = new Array(ary.length);
+	  var next = after(ary.length, done);
+	
+	  var eachWithIndex = function(i, el, cb) {
+	    each(el, function(error, msg) {
+	      result[i] = msg;
+	      cb(error, result);
+	    });
+	  };
+	
+	  for (var i = 0; i < ary.length; i++) {
+	    eachWithIndex(i, ary[i], next);
+	  }
+	}
+	
+	/*
+	 * Decodes data when a payload is maybe expected. Possible binary contents are
+	 * decoded from their base64 representation
+	 *
+	 * @param {String} data, callback method
+	 * @api public
+	 */
+	
+	exports.decodePayload = function (data, binaryType, callback) {
+	  if (typeof data !== 'string') {
+	    return exports.decodePayloadAsBinary(data, binaryType, callback);
+	  }
+	
+	  if (typeof binaryType === 'function') {
+	    callback = binaryType;
+	    binaryType = null;
+	  }
+	
+	  var packet;
+	  if (data === '') {
+	    // parser error - ignoring payload
+	    return callback(err, 0, 1);
+	  }
+	
+	  var length = '', n, msg;
+	
+	  for (var i = 0, l = data.length; i < l; i++) {
+	    var chr = data.charAt(i);
+	
+	    if (chr !== ':') {
+	      length += chr;
+	      continue;
+	    }
+	
+	    if (length === '' || (length != (n = Number(length)))) {
+	      // parser error - ignoring payload
+	      return callback(err, 0, 1);
+	    }
+	
+	    msg = data.substr(i + 1, n);
+	
+	    if (length != msg.length) {
+	      // parser error - ignoring payload
+	      return callback(err, 0, 1);
+	    }
+	
+	    if (msg.length) {
+	      packet = exports.decodePacket(msg, binaryType, false);
+	
+	      if (err.type === packet.type && err.data === packet.data) {
+	        // parser error in individual packet - ignoring payload
+	        return callback(err, 0, 1);
+	      }
+	
+	      var ret = callback(packet, i + n, l);
+	      if (false === ret) return;
+	    }
+	
+	    // advance cursor
+	    i += n;
+	    length = '';
+	  }
+	
+	  if (length !== '') {
+	    // parser error - ignoring payload
+	    return callback(err, 0, 1);
+	  }
+	
+	};
+	
+	/**
+	 * Encodes multiple messages (payload) as binary.
+	 *
+	 * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number
+	 * 255><data>
+	 *
+	 * Example:
+	 * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers
+	 *
+	 * @param {Array} packets
+	 * @return {ArrayBuffer} encoded payload
+	 * @api private
+	 */
+	
+	exports.encodePayloadAsArrayBuffer = function(packets, callback) {
+	  if (!packets.length) {
+	    return callback(new ArrayBuffer(0));
+	  }
+	
+	  function encodeOne(packet, doneCallback) {
+	    exports.encodePacket(packet, true, true, function(data) {
+	      return doneCallback(null, data);
+	    });
+	  }
+	
+	  map(packets, encodeOne, function(err, encodedPackets) {
+	    var totalLength = encodedPackets.reduce(function(acc, p) {
+	      var len;
+	      if (typeof p === 'string'){
+	        len = p.length;
+	      } else {
+	        len = p.byteLength;
+	      }
+	      return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2
+	    }, 0);
+	
+	    var resultArray = new Uint8Array(totalLength);
+	
+	    var bufferIndex = 0;
+	    encodedPackets.forEach(function(p) {
+	      var isString = typeof p === 'string';
+	      var ab = p;
+	      if (isString) {
+	        var view = new Uint8Array(p.length);
+	        for (var i = 0; i < p.length; i++) {
+	          view[i] = p.charCodeAt(i);
+	        }
+	        ab = view.buffer;
+	      }
+	
+	      if (isString) { // not true binary
+	        resultArray[bufferIndex++] = 0;
+	      } else { // true binary
+	        resultArray[bufferIndex++] = 1;
+	      }
+	
+	      var lenStr = ab.byteLength.toString();
+	      for (var i = 0; i < lenStr.length; i++) {
+	        resultArray[bufferIndex++] = parseInt(lenStr[i]);
+	      }
+	      resultArray[bufferIndex++] = 255;
+	
+	      var view = new Uint8Array(ab);
+	      for (var i = 0; i < view.length; i++) {
+	        resultArray[bufferIndex++] = view[i];
+	      }
+	    });
+	
+	    return callback(resultArray.buffer);
+	  });
+	};
+	
+	/**
+	 * Encode as Blob
+	 */
+	
+	exports.encodePayloadAsBlob = function(packets, callback) {
+	  function encodeOne(packet, doneCallback) {
+	    exports.encodePacket(packet, true, true, function(encoded) {
+	      var binaryIdentifier = new Uint8Array(1);
+	      binaryIdentifier[0] = 1;
+	      if (typeof encoded === 'string') {
+	        var view = new Uint8Array(encoded.length);
+	        for (var i = 0; i < encoded.length; i++) {
+	          view[i] = encoded.charCodeAt(i);
+	        }
+	        encoded = view.buffer;
+	        binaryIdentifier[0] = 0;
+	      }
+	
+	      var len = (encoded instanceof ArrayBuffer)
+	        ? encoded.byteLength
+	        : encoded.size;
+	
+	      var lenStr = len.toString();
+	      var lengthAry = new Uint8Array(lenStr.length + 1);
+	      for (var i = 0; i < lenStr.length; i++) {
+	        lengthAry[i] = parseInt(lenStr[i]);
+	      }
+	      lengthAry[lenStr.length] = 255;
+	
+	      if (Blob) {
+	        var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);
+	        doneCallback(null, blob);
+	      }
+	    });
+	  }
+	
+	  map(packets, encodeOne, function(err, results) {
+	    return callback(new Blob(results));
+	  });
+	};
+	
+	/*
+	 * Decodes data when a payload is maybe expected. Strings are decoded by
+	 * interpreting each byte as a key code for entries marked to start with 0. See
+	 * description of encodePayloadAsBinary
+	 *
+	 * @param {ArrayBuffer} data, callback method
+	 * @api public
+	 */
+	
+	exports.decodePayloadAsBinary = function (data, binaryType, callback) {
+	  if (typeof binaryType === 'function') {
+	    callback = binaryType;
+	    binaryType = null;
+	  }
+	
+	  var bufferTail = data;
+	  var buffers = [];
+	
+	  while (bufferTail.byteLength > 0) {
+	    var tailArray = new Uint8Array(bufferTail);
+	    var isString = tailArray[0] === 0;
+	    var msgLength = '';
+	
+	    for (var i = 1; ; i++) {
+	      if (tailArray[i] === 255) break;
+	
+	      // 310 = char length of Number.MAX_VALUE
+	      if (msgLength.length > 310) {
+	        return callback(err, 0, 1);
+	      }
+	
+	      msgLength += tailArray[i];
+	    }
+	
+	    bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);
+	    msgLength = parseInt(msgLength);
+	
+	    var msg = sliceBuffer(bufferTail, 0, msgLength);
+	    if (isString) {
+	      try {
+	        msg = String.fromCharCode.apply(null, new Uint8Array(msg));
+	      } catch (e) {
+	        // iPhone Safari doesn't let you apply to typed arrays
+	        var typed = new Uint8Array(msg);
+	        msg = '';
+	        for (var i = 0; i < typed.length; i++) {
+	          msg += String.fromCharCode(typed[i]);
+	        }
+	      }
+	    }
+	
+	    buffers.push(msg);
+	    bufferTail = sliceBuffer(bufferTail, msgLength);
+	  }
+	
+	  var total = buffers.length;
+	  buffers.forEach(function(buffer, i) {
+	    callback(exports.decodePacket(buffer, binaryType, true), i, total);
+	  });
+	};
+
+
+/***/ }),
+/* 22 */
+/***/ (function(module, exports) {
+
+	
+	/**
+	 * Gets the keys for an object.
+	 *
+	 * @return {Array} keys
+	 * @api private
+	 */
+	
+	module.exports = Object.keys || function keys (obj){
+	  var arr = [];
+	  var has = Object.prototype.hasOwnProperty;
+	
+	  for (var i in obj) {
+	    if (has.call(obj, i)) {
+	      arr.push(i);
+	    }
+	  }
+	  return arr;
+	};
+
+
+/***/ }),
+/* 23 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/* global Blob File */
+	
+	/*
+	 * Module requirements.
+	 */
+	
+	var isArray = __webpack_require__(10);
+	
+	var toString = Object.prototype.toString;
+	var withNativeBlob = typeof Blob === 'function' ||
+	                        typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]';
+	var withNativeFile = typeof File === 'function' ||
+	                        typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]';
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = hasBinary;
+	
+	/**
+	 * Checks for binary data.
+	 *
+	 * Supports Buffer, ArrayBuffer, Blob and File.
+	 *
+	 * @param {Object} anything
+	 * @api public
+	 */
+	
+	function hasBinary (obj) {
+	  if (!obj || typeof obj !== 'object') {
+	    return false;
+	  }
+	
+	  if (isArray(obj)) {
+	    for (var i = 0, l = obj.length; i < l; i++) {
+	      if (hasBinary(obj[i])) {
+	        return true;
+	      }
+	    }
+	    return false;
+	  }
+	
+	  if ((typeof Buffer === 'function' && Buffer.isBuffer && Buffer.isBuffer(obj)) ||
+	    (typeof ArrayBuffer === 'function' && obj instanceof ArrayBuffer) ||
+	    (withNativeBlob && obj instanceof Blob) ||
+	    (withNativeFile && obj instanceof File)
+	  ) {
+	    return true;
+	  }
+	
+	  // see: https://github.com/Automattic/has-binary/pull/4
+	  if (obj.toJSON && typeof obj.toJSON === 'function' && arguments.length === 1) {
+	    return hasBinary(obj.toJSON(), true);
+	  }
+	
+	  for (var key in obj) {
+	    if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {
+	      return true;
+	    }
+	  }
+	
+	  return false;
+	}
+
+
+/***/ }),
+/* 24 */
+/***/ (function(module, exports) {
+
+	/**
+	 * An abstraction for slicing an arraybuffer even when
+	 * ArrayBuffer.prototype.slice is not supported
+	 *
+	 * @api public
+	 */
+	
+	module.exports = function(arraybuffer, start, end) {
+	  var bytes = arraybuffer.byteLength;
+	  start = start || 0;
+	  end = end || bytes;
+	
+	  if (arraybuffer.slice) { return arraybuffer.slice(start, end); }
+	
+	  if (start < 0) { start += bytes; }
+	  if (end < 0) { end += bytes; }
+	  if (end > bytes) { end = bytes; }
+	
+	  if (start >= bytes || start >= end || bytes === 0) {
+	    return new ArrayBuffer(0);
+	  }
+	
+	  var abv = new Uint8Array(arraybuffer);
+	  var result = new Uint8Array(end - start);
+	  for (var i = start, ii = 0; i < end; i++, ii++) {
+	    result[ii] = abv[i];
+	  }
+	  return result.buffer;
+	};
+
+
+/***/ }),
+/* 25 */
+/***/ (function(module, exports) {
+
+	module.exports = after
+	
+	function after(count, callback, err_cb) {
+	    var bail = false
+	    err_cb = err_cb || noop
+	    proxy.count = count
+	
+	    return (count === 0) ? callback() : proxy
+	
+	    function proxy(err, result) {
+	        if (proxy.count <= 0) {
+	            throw new Error('after called too many times')
+	        }
+	        --proxy.count
+	
+	        // after first error, rest are passed to err_cb
+	        if (err) {
+	            bail = true
+	            callback(err)
+	            // future error callbacks will go to error handler
+	            callback = err_cb
+	        } else if (proxy.count === 0 && !bail) {
+	            callback(null, result)
+	        }
+	    }
+	}
+	
+	function noop() {}
+
+
+/***/ }),
+/* 26 */
+/***/ (function(module, exports) {
+
+	/*! https://mths.be/utf8js v2.1.2 by @mathias */
+	
+	var stringFromCharCode = String.fromCharCode;
+	
+	// Taken from https://mths.be/punycode
+	function ucs2decode(string) {
+		var output = [];
+		var counter = 0;
+		var length = string.length;
+		var value;
+		var extra;
+		while (counter < length) {
+			value = string.charCodeAt(counter++);
+			if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
+				// high surrogate, and there is a next character
+				extra = string.charCodeAt(counter++);
+				if ((extra & 0xFC00) == 0xDC00) { // low surrogate
+					output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
+				} else {
+					// unmatched surrogate; only append this code unit, in case the next
+					// code unit is the high surrogate of a surrogate pair
+					output.push(value);
+					counter--;
+				}
+			} else {
+				output.push(value);
+			}
+		}
+		return output;
+	}
+	
+	// Taken from https://mths.be/punycode
+	function ucs2encode(array) {
+		var length = array.length;
+		var index = -1;
+		var value;
+		var output = '';
+		while (++index < length) {
+			value = array[index];
+			if (value > 0xFFFF) {
+				value -= 0x10000;
+				output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
+				value = 0xDC00 | value & 0x3FF;
+			}
+			output += stringFromCharCode(value);
+		}
+		return output;
+	}
+	
+	function checkScalarValue(codePoint, strict) {
+		if (codePoint >= 0xD800 && codePoint <= 0xDFFF) {
+			if (strict) {
+				throw Error(
+					'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +
+					' is not a scalar value'
+				);
+			}
+			return false;
+		}
+		return true;
+	}
+	/*--------------------------------------------------------------------------*/
+	
+	function createByte(codePoint, shift) {
+		return stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);
+	}
+	
+	function encodeCodePoint(codePoint, strict) {
+		if ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence
+			return stringFromCharCode(codePoint);
+		}
+		var symbol = '';
+		if ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence
+			symbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);
+		}
+		else if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence
+			if (!checkScalarValue(codePoint, strict)) {
+				codePoint = 0xFFFD;
+			}
+			symbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);
+			symbol += createByte(codePoint, 6);
+		}
+		else if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence
+			symbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);
+			symbol += createByte(codePoint, 12);
+			symbol += createByte(codePoint, 6);
+		}
+		symbol += stringFromCharCode((codePoint & 0x3F) | 0x80);
+		return symbol;
+	}
+	
+	function utf8encode(string, opts) {
+		opts = opts || {};
+		var strict = false !== opts.strict;
+	
+		var codePoints = ucs2decode(string);
+		var length = codePoints.length;
+		var index = -1;
+		var codePoint;
+		var byteString = '';
+		while (++index < length) {
+			codePoint = codePoints[index];
+			byteString += encodeCodePoint(codePoint, strict);
+		}
+		return byteString;
+	}
+	
+	/*--------------------------------------------------------------------------*/
+	
+	function readContinuationByte() {
+		if (byteIndex >= byteCount) {
+			throw Error('Invalid byte index');
+		}
+	
+		var continuationByte = byteArray[byteIndex] & 0xFF;
+		byteIndex++;
+	
+		if ((continuationByte & 0xC0) == 0x80) {
+			return continuationByte & 0x3F;
+		}
+	
+		// If we end up here, it’s not a continuation byte
+		throw Error('Invalid continuation byte');
+	}
+	
+	function decodeSymbol(strict) {
+		var byte1;
+		var byte2;
+		var byte3;
+		var byte4;
+		var codePoint;
+	
+		if (byteIndex > byteCount) {
+			throw Error('Invalid byte index');
+		}
+	
+		if (byteIndex == byteCount) {
+			return false;
+		}
+	
+		// Read first byte
+		byte1 = byteArray[byteIndex] & 0xFF;
+		byteIndex++;
+	
+		// 1-byte sequence (no continuation bytes)
+		if ((byte1 & 0x80) == 0) {
+			return byte1;
+		}
+	
+		// 2-byte sequence
+		if ((byte1 & 0xE0) == 0xC0) {
+			byte2 = readContinuationByte();
+			codePoint = ((byte1 & 0x1F) << 6) | byte2;
+			if (codePoint >= 0x80) {
+				return codePoint;
+			} else {
+				throw Error('Invalid continuation byte');
+			}
+		}
+	
+		// 3-byte sequence (may include unpaired surrogates)
+		if ((byte1 & 0xF0) == 0xE0) {
+			byte2 = readContinuationByte();
+			byte3 = readContinuationByte();
+			codePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;
+			if (codePoint >= 0x0800) {
+				return checkScalarValue(codePoint, strict) ? codePoint : 0xFFFD;
+			} else {
+				throw Error('Invalid continuation byte');
+			}
+		}
+	
+		// 4-byte sequence
+		if ((byte1 & 0xF8) == 0xF0) {
+			byte2 = readContinuationByte();
+			byte3 = readContinuationByte();
+			byte4 = readContinuationByte();
+			codePoint = ((byte1 & 0x07) << 0x12) | (byte2 << 0x0C) |
+				(byte3 << 0x06) | byte4;
+			if (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {
+				return codePoint;
+			}
+		}
+	
+		throw Error('Invalid UTF-8 detected');
+	}
+	
+	var byteArray;
+	var byteCount;
+	var byteIndex;
+	function utf8decode(byteString, opts) {
+		opts = opts || {};
+		var strict = false !== opts.strict;
+	
+		byteArray = ucs2decode(byteString);
+		byteCount = byteArray.length;
+		byteIndex = 0;
+		var codePoints = [];
+		var tmp;
+		while ((tmp = decodeSymbol(strict)) !== false) {
+			codePoints.push(tmp);
+		}
+		return ucs2encode(codePoints);
+	}
+	
+	module.exports = {
+		version: '2.1.2',
+		encode: utf8encode,
+		decode: utf8decode
+	};
+
+
+/***/ }),
+/* 27 */
+/***/ (function(module, exports) {
+
+	/*
+	 * base64-arraybuffer
+	 * https://github.com/niklasvh/base64-arraybuffer
+	 *
+	 * Copyright (c) 2012 Niklas von Hertzen
+	 * Licensed under the MIT license.
+	 */
+	(function(){
+	  "use strict";
+	
+	  var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+	
+	  // Use a lookup table to find the index.
+	  var lookup = new Uint8Array(256);
+	  for (var i = 0; i < chars.length; i++) {
+	    lookup[chars.charCodeAt(i)] = i;
+	  }
+	
+	  exports.encode = function(arraybuffer) {
+	    var bytes = new Uint8Array(arraybuffer),
+	    i, len = bytes.length, base64 = "";
+	
+	    for (i = 0; i < len; i+=3) {
+	      base64 += chars[bytes[i] >> 2];
+	      base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
+	      base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
+	      base64 += chars[bytes[i + 2] & 63];
+	    }
+	
+	    if ((len % 3) === 2) {
+	      base64 = base64.substring(0, base64.length - 1) + "=";
+	    } else if (len % 3 === 1) {
+	      base64 = base64.substring(0, base64.length - 2) + "==";
+	    }
+	
+	    return base64;
+	  };
+	
+	  exports.decode =  function(base64) {
+	    var bufferLength = base64.length * 0.75,
+	    len = base64.length, i, p = 0,
+	    encoded1, encoded2, encoded3, encoded4;
+	
+	    if (base64[base64.length - 1] === "=") {
+	      bufferLength--;
+	      if (base64[base64.length - 2] === "=") {
+	        bufferLength--;
+	      }
+	    }
+	
+	    var arraybuffer = new ArrayBuffer(bufferLength),
+	    bytes = new Uint8Array(arraybuffer);
+	
+	    for (i = 0; i < len; i+=4) {
+	      encoded1 = lookup[base64.charCodeAt(i)];
+	      encoded2 = lookup[base64.charCodeAt(i+1)];
+	      encoded3 = lookup[base64.charCodeAt(i+2)];
+	      encoded4 = lookup[base64.charCodeAt(i+3)];
+	
+	      bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
+	      bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
+	      bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
+	    }
+	
+	    return arraybuffer;
+	  };
+	})();
+
+
+/***/ }),
+/* 28 */
+/***/ (function(module, exports) {
+
+	/**
+	 * Create a blob builder even when vendor prefixes exist
+	 */
+	
+	var BlobBuilder = typeof BlobBuilder !== 'undefined' ? BlobBuilder :
+	  typeof WebKitBlobBuilder !== 'undefined' ? WebKitBlobBuilder :
+	  typeof MSBlobBuilder !== 'undefined' ? MSBlobBuilder :
+	  typeof MozBlobBuilder !== 'undefined' ? MozBlobBuilder : 
+	  false;
+	
+	/**
+	 * Check if Blob constructor is supported
+	 */
+	
+	var blobSupported = (function() {
+	  try {
+	    var a = new Blob(['hi']);
+	    return a.size === 2;
+	  } catch(e) {
+	    return false;
+	  }
+	})();
+	
+	/**
+	 * Check if Blob constructor supports ArrayBufferViews
+	 * Fails in Safari 6, so we need to map to ArrayBuffers there.
+	 */
+	
+	var blobSupportsArrayBufferView = blobSupported && (function() {
+	  try {
+	    var b = new Blob([new Uint8Array([1,2])]);
+	    return b.size === 2;
+	  } catch(e) {
+	    return false;
+	  }
+	})();
+	
+	/**
+	 * Check if BlobBuilder is supported
+	 */
+	
+	var blobBuilderSupported = BlobBuilder
+	  && BlobBuilder.prototype.append
+	  && BlobBuilder.prototype.getBlob;
+	
+	/**
+	 * Helper function that maps ArrayBufferViews to ArrayBuffers
+	 * Used by BlobBuilder constructor and old browsers that didn't
+	 * support it in the Blob constructor.
+	 */
+	
+	function mapArrayBufferViews(ary) {
+	  return ary.map(function(chunk) {
+	    if (chunk.buffer instanceof ArrayBuffer) {
+	      var buf = chunk.buffer;
+	
+	      // if this is a subarray, make a copy so we only
+	      // include the subarray region from the underlying buffer
+	      if (chunk.byteLength !== buf.byteLength) {
+	        var copy = new Uint8Array(chunk.byteLength);
+	        copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));
+	        buf = copy.buffer;
+	      }
+	
+	      return buf;
+	    }
+	
+	    return chunk;
+	  });
+	}
+	
+	function BlobBuilderConstructor(ary, options) {
+	  options = options || {};
+	
+	  var bb = new BlobBuilder();
+	  mapArrayBufferViews(ary).forEach(function(part) {
+	    bb.append(part);
+	  });
+	
+	  return (options.type) ? bb.getBlob(options.type) : bb.getBlob();
+	};
+	
+	function BlobConstructor(ary, options) {
+	  return new Blob(mapArrayBufferViews(ary), options || {});
+	};
+	
+	if (typeof Blob !== 'undefined') {
+	  BlobBuilderConstructor.prototype = Blob.prototype;
+	  BlobConstructor.prototype = Blob.prototype;
+	}
+	
+	module.exports = (function() {
+	  if (blobSupported) {
+	    return blobSupportsArrayBufferView ? Blob : BlobConstructor;
+	  } else if (blobBuilderSupported) {
+	    return BlobBuilderConstructor;
+	  } else {
+	    return undefined;
+	  }
+	})();
+
+
+/***/ }),
+/* 29 */
+/***/ (function(module, exports) {
+
+	/**
+	 * Compiles a querystring
+	 * Returns string representation of the object
+	 *
+	 * @param {Object}
+	 * @api private
+	 */
+	
+	exports.encode = function (obj) {
+	  var str = '';
+	
+	  for (var i in obj) {
+	    if (obj.hasOwnProperty(i)) {
+	      if (str.length) str += '&';
+	      str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);
+	    }
+	  }
+	
+	  return str;
+	};
+	
+	/**
+	 * Parses a simple querystring into an object
+	 *
+	 * @param {String} qs
+	 * @api private
+	 */
+	
+	exports.decode = function(qs){
+	  var qry = {};
+	  var pairs = qs.split('&');
+	  for (var i = 0, l = pairs.length; i < l; i++) {
+	    var pair = pairs[i].split('=');
+	    qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
+	  }
+	  return qry;
+	};
+
+
+/***/ }),
+/* 30 */
+/***/ (function(module, exports) {
+
+	
+	module.exports = function(a, b){
+	  var fn = function(){};
+	  fn.prototype = b.prototype;
+	  a.prototype = new fn;
+	  a.prototype.constructor = a;
+	};
+
+/***/ }),
+/* 31 */
+/***/ (function(module, exports) {
+
+	'use strict';
+	
+	var alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('')
+	  , length = 64
+	  , map = {}
+	  , seed = 0
+	  , i = 0
+	  , prev;
+	
+	/**
+	 * Return a string representing the specified number.
+	 *
+	 * @param {Number} num The number to convert.
+	 * @returns {String} The string representation of the number.
+	 * @api public
+	 */
+	function encode(num) {
+	  var encoded = '';
+	
+	  do {
+	    encoded = alphabet[num % length] + encoded;
+	    num = Math.floor(num / length);
+	  } while (num > 0);
+	
+	  return encoded;
+	}
+	
+	/**
+	 * Return the integer value specified by the given string.
+	 *
+	 * @param {String} str The string to convert.
+	 * @returns {Number} The integer value represented by the string.
+	 * @api public
+	 */
+	function decode(str) {
+	  var decoded = 0;
+	
+	  for (i = 0; i < str.length; i++) {
+	    decoded = decoded * length + map[str.charAt(i)];
+	  }
+	
+	  return decoded;
+	}
+	
+	/**
+	 * Yeast: A tiny growing id generator.
+	 *
+	 * @returns {String} A unique id.
+	 * @api public
+	 */
+	function yeast() {
+	  var now = encode(+new Date());
+	
+	  if (now !== prev) return seed = 0, prev = now;
+	  return now +'.'+ encode(seed++);
+	}
+	
+	//
+	// Map each character to its index.
+	//
+	for (; i < length; i++) map[alphabet[i]] = i;
+	
+	//
+	// Expose the `yeast`, `encode` and `decode` functions.
+	//
+	yeast.encode = encode;
+	yeast.decode = decode;
+	module.exports = yeast;
+
+
+/***/ }),
+/* 32 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/* WEBPACK VAR INJECTION */(function(global) {/**
+	 * Module requirements.
+	 */
+	
+	var Polling = __webpack_require__(19);
+	var inherit = __webpack_require__(30);
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = JSONPPolling;
+	
+	/**
+	 * Cached regular expressions.
+	 */
+	
+	var rNewline = /\n/g;
+	var rEscapedNewline = /\\n/g;
+	
+	/**
+	 * Global JSONP callbacks.
+	 */
+	
+	var callbacks;
+	
+	/**
+	 * Noop.
+	 */
+	
+	function empty () { }
+	
+	/**
+	 * Until https://github.com/tc39/proposal-global is shipped.
+	 */
+	function glob () {
+	  return typeof self !== 'undefined' ? self
+	      : typeof window !== 'undefined' ? window
+	      : typeof global !== 'undefined' ? global : {};
+	}
+	
+	/**
+	 * JSONP Polling constructor.
+	 *
+	 * @param {Object} opts.
+	 * @api public
+	 */
+	
+	function JSONPPolling (opts) {
+	  Polling.call(this, opts);
+	
+	  this.query = this.query || {};
+	
+	  // define global callbacks array if not present
+	  // we do this here (lazily) to avoid unneeded global pollution
+	  if (!callbacks) {
+	    // we need to consider multiple engines in the same page
+	    var global = glob();
+	    callbacks = global.___eio = (global.___eio || []);
+	  }
+	
+	  // callback identifier
+	  this.index = callbacks.length;
+	
+	  // add callback to jsonp global
+	  var self = this;
+	  callbacks.push(function (msg) {
+	    self.onData(msg);
+	  });
+	
+	  // append to query string
+	  this.query.j = this.index;
+	
+	  // prevent spurious errors from being emitted when the window is unloaded
+	  if (typeof addEventListener === 'function') {
+	    addEventListener('beforeunload', function () {
+	      if (self.script) self.script.onerror = empty;
+	    }, false);
+	  }
+	}
+	
+	/**
+	 * Inherits from Polling.
+	 */
+	
+	inherit(JSONPPolling, Polling);
+	
+	/*
+	 * JSONP only supports binary as base64 encoded strings
+	 */
+	
+	JSONPPolling.prototype.supportsBinary = false;
+	
+	/**
+	 * Closes the socket.
+	 *
+	 * @api private
+	 */
+	
+	JSONPPolling.prototype.doClose = function () {
+	  if (this.script) {
+	    this.script.parentNode.removeChild(this.script);
+	    this.script = null;
+	  }
+	
+	  if (this.form) {
+	    this.form.parentNode.removeChild(this.form);
+	    this.form = null;
+	    this.iframe = null;
+	  }
+	
+	  Polling.prototype.doClose.call(this);
+	};
+	
+	/**
+	 * Starts a poll cycle.
+	 *
+	 * @api private
+	 */
+	
+	JSONPPolling.prototype.doPoll = function () {
+	  var self = this;
+	  var script = document.createElement('script');
+	
+	  if (this.script) {
+	    this.script.parentNode.removeChild(this.script);
+	    this.script = null;
+	  }
+	
+	  script.async = true;
+	  script.src = this.uri();
+	  script.onerror = function (e) {
+	    self.onError('jsonp poll error', e);
+	  };
+	
+	  var insertAt = document.getElementsByTagName('script')[0];
+	  if (insertAt) {
+	    insertAt.parentNode.insertBefore(script, insertAt);
+	  } else {
+	    (document.head || document.body).appendChild(script);
+	  }
+	  this.script = script;
+	
+	  var isUAgecko = 'undefined' !== typeof navigator && /gecko/i.test(navigator.userAgent);
+	
+	  if (isUAgecko) {
+	    setTimeout(function () {
+	      var iframe = document.createElement('iframe');
+	      document.body.appendChild(iframe);
+	      document.body.removeChild(iframe);
+	    }, 100);
+	  }
+	};
+	
+	/**
+	 * Writes with a hidden iframe.
+	 *
+	 * @param {String} data to send
+	 * @param {Function} called upon flush.
+	 * @api private
+	 */
+	
+	JSONPPolling.prototype.doWrite = function (data, fn) {
+	  var self = this;
+	
+	  if (!this.form) {
+	    var form = document.createElement('form');
+	    var area = document.createElement('textarea');
+	    var id = this.iframeId = 'eio_iframe_' + this.index;
+	    var iframe;
+	
+	    form.className = 'socketio';
+	    form.style.position = 'absolute';
+	    form.style.top = '-1000px';
+	    form.style.left = '-1000px';
+	    form.target = id;
+	    form.method = 'POST';
+	    form.setAttribute('accept-charset', 'utf-8');
+	    area.name = 'd';
+	    form.appendChild(area);
+	    document.body.appendChild(form);
+	
+	    this.form = form;
+	    this.area = area;
+	  }
+	
+	  this.form.action = this.uri();
+	
+	  function complete () {
+	    initIframe();
+	    fn();
+	  }
+	
+	  function initIframe () {
+	    if (self.iframe) {
+	      try {
+	        self.form.removeChild(self.iframe);
+	      } catch (e) {
+	        self.onError('jsonp polling iframe removal error', e);
+	      }
+	    }
+	
+	    try {
+	      // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
+	      var html = '<iframe src="javascript:0" name="' + self.iframeId + '">';
+	      iframe = document.createElement(html);
+	    } catch (e) {
+	      iframe = document.createElement('iframe');
+	      iframe.name = self.iframeId;
+	      iframe.src = 'javascript:0';
+	    }
+	
+	    iframe.id = self.iframeId;
+	
+	    self.form.appendChild(iframe);
+	    self.iframe = iframe;
+	  }
+	
+	  initIframe();
+	
+	  // escape \n to prevent it from being converted into \r\n by some UAs
+	  // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side
+	  data = data.replace(rEscapedNewline, '\\\n');
+	  this.area.value = data.replace(rNewline, '\\n');
+	
+	  try {
+	    this.form.submit();
+	  } catch (e) {}
+	
+	  if (this.iframe.attachEvent) {
+	    this.iframe.onreadystatechange = function () {
+	      if (self.iframe.readyState === 'complete') {
+	        complete();
+	      }
+	    };
+	  } else {
+	    this.iframe.onload = complete;
+	  }
+	};
+	
+	/* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }())))
+
+/***/ }),
+/* 33 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/**
+	 * Module dependencies.
+	 */
+	
+	var Transport = __webpack_require__(20);
+	var parser = __webpack_require__(21);
+	var parseqs = __webpack_require__(29);
+	var inherit = __webpack_require__(30);
+	var yeast = __webpack_require__(31);
+	var debug = __webpack_require__(3)('engine.io-client:websocket');
+	var BrowserWebSocket, NodeWebSocket;
+	if (typeof self === 'undefined') {
+	  try {
+	    NodeWebSocket = __webpack_require__(34);
+	  } catch (e) { }
+	} else {
+	  BrowserWebSocket = self.WebSocket || self.MozWebSocket;
+	}
+	
+	/**
+	 * Get either the `WebSocket` or `MozWebSocket` globals
+	 * in the browser or try to resolve WebSocket-compatible
+	 * interface exposed by `ws` for Node-like environment.
+	 */
+	
+	var WebSocket = BrowserWebSocket || NodeWebSocket;
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = WS;
+	
+	/**
+	 * WebSocket transport constructor.
+	 *
+	 * @api {Object} connection options
+	 * @api public
+	 */
+	
+	function WS (opts) {
+	  var forceBase64 = (opts && opts.forceBase64);
+	  if (forceBase64) {
+	    this.supportsBinary = false;
+	  }
+	  this.perMessageDeflate = opts.perMessageDeflate;
+	  this.usingBrowserWebSocket = BrowserWebSocket && !opts.forceNode;
+	  this.protocols = opts.protocols;
+	  if (!this.usingBrowserWebSocket) {
+	    WebSocket = NodeWebSocket;
+	  }
+	  Transport.call(this, opts);
+	}
+	
+	/**
+	 * Inherits from Transport.
+	 */
+	
+	inherit(WS, Transport);
+	
+	/**
+	 * Transport name.
+	 *
+	 * @api public
+	 */
+	
+	WS.prototype.name = 'websocket';
+	
+	/*
+	 * WebSockets support binary
+	 */
+	
+	WS.prototype.supportsBinary = true;
+	
+	/**
+	 * Opens socket.
+	 *
+	 * @api private
+	 */
+	
+	WS.prototype.doOpen = function () {
+	  if (!this.check()) {
+	    // let probe timeout
+	    return;
+	  }
+	
+	  var uri = this.uri();
+	  var protocols = this.protocols;
+	  var opts = {
+	    agent: this.agent,
+	    perMessageDeflate: this.perMessageDeflate
+	  };
+	
+	  // SSL options for Node.js client
+	  opts.pfx = this.pfx;
+	  opts.key = this.key;
+	  opts.passphrase = this.passphrase;
+	  opts.cert = this.cert;
+	  opts.ca = this.ca;
+	  opts.ciphers = this.ciphers;
+	  opts.rejectUnauthorized = this.rejectUnauthorized;
+	  if (this.extraHeaders) {
+	    opts.headers = this.extraHeaders;
+	  }
+	  if (this.localAddress) {
+	    opts.localAddress = this.localAddress;
+	  }
+	
+	  try {
+	    this.ws = this.usingBrowserWebSocket && !this.isReactNative ? (protocols ? new WebSocket(uri, protocols) : new WebSocket(uri)) : new WebSocket(uri, protocols, opts);
+	  } catch (err) {
+	    return this.emit('error', err);
+	  }
+	
+	  if (this.ws.binaryType === undefined) {
+	    this.supportsBinary = false;
+	  }
+	
+	  if (this.ws.supports && this.ws.supports.binary) {
+	    this.supportsBinary = true;
+	    this.ws.binaryType = 'nodebuffer';
+	  } else {
+	    this.ws.binaryType = 'arraybuffer';
+	  }
+	
+	  this.addEventListeners();
+	};
+	
+	/**
+	 * Adds event listeners to the socket
+	 *
+	 * @api private
+	 */
+	
+	WS.prototype.addEventListeners = function () {
+	  var self = this;
+	
+	  this.ws.onopen = function () {
+	    self.onOpen();
+	  };
+	  this.ws.onclose = function () {
+	    self.onClose();
+	  };
+	  this.ws.onmessage = function (ev) {
+	    self.onData(ev.data);
+	  };
+	  this.ws.onerror = function (e) {
+	    self.onError('websocket error', e);
+	  };
+	};
+	
+	/**
+	 * Writes data to socket.
+	 *
+	 * @param {Array} array of packets.
+	 * @api private
+	 */
+	
+	WS.prototype.write = function (packets) {
+	  var self = this;
+	  this.writable = false;
+	
+	  // encodePacket efficient as it uses WS framing
+	  // no need for encodePayload
+	  var total = packets.length;
+	  for (var i = 0, l = total; i < l; i++) {
+	    (function (packet) {
+	      parser.encodePacket(packet, self.supportsBinary, function (data) {
+	        if (!self.usingBrowserWebSocket) {
+	          // always create a new object (GH-437)
+	          var opts = {};
+	          if (packet.options) {
+	            opts.compress = packet.options.compress;
+	          }
+	
+	          if (self.perMessageDeflate) {
+	            var len = 'string' === typeof data ? Buffer.byteLength(data) : data.length;
+	            if (len < self.perMessageDeflate.threshold) {
+	              opts.compress = false;
+	            }
+	          }
+	        }
+	
+	        // Sometimes the websocket has already been closed but the browser didn't
+	        // have a chance of informing us about it yet, in that case send will
+	        // throw an error
+	        try {
+	          if (self.usingBrowserWebSocket) {
+	            // TypeError is thrown when passing the second argument on Safari
+	            self.ws.send(data);
+	          } else {
+	            self.ws.send(data, opts);
+	          }
+	        } catch (e) {
+	          debug('websocket closed before onclose event');
+	        }
+	
+	        --total || done();
+	      });
+	    })(packets[i]);
+	  }
+	
+	  function done () {
+	    self.emit('flush');
+	
+	    // fake drain
+	    // defer to next tick to allow Socket to clear writeBuffer
+	    setTimeout(function () {
+	      self.writable = true;
+	      self.emit('drain');
+	    }, 0);
+	  }
+	};
+	
+	/**
+	 * Called upon close
+	 *
+	 * @api private
+	 */
+	
+	WS.prototype.onClose = function () {
+	  Transport.prototype.onClose.call(this);
+	};
+	
+	/**
+	 * Closes socket.
+	 *
+	 * @api private
+	 */
+	
+	WS.prototype.doClose = function () {
+	  if (typeof this.ws !== 'undefined') {
+	    this.ws.close();
+	  }
+	};
+	
+	/**
+	 * Generates uri for connection.
+	 *
+	 * @api private
+	 */
+	
+	WS.prototype.uri = function () {
+	  var query = this.query || {};
+	  var schema = this.secure ? 'wss' : 'ws';
+	  var port = '';
+	
+	  // avoid port if default for schema
+	  if (this.port && (('wss' === schema && Number(this.port) !== 443) ||
+	    ('ws' === schema && Number(this.port) !== 80))) {
+	    port = ':' + this.port;
+	  }
+	
+	  // append timestamp to URI
+	  if (this.timestampRequests) {
+	    query[this.timestampParam] = yeast();
+	  }
+	
+	  // communicate binary support capabilities
+	  if (!this.supportsBinary) {
+	    query.b64 = 1;
+	  }
+	
+	  query = parseqs.encode(query);
+	
+	  // prepend ? to query
+	  if (query.length) {
+	    query = '?' + query;
+	  }
+	
+	  var ipv6 = this.hostname.indexOf(':') !== -1;
+	  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;
+	};
+	
+	/**
+	 * Feature detection for WebSocket.
+	 *
+	 * @return {Boolean} whether this transport is available.
+	 * @api public
+	 */
+	
+	WS.prototype.check = function () {
+	  return !!WebSocket && !('__initialize' in WebSocket && this.name === WS.prototype.name);
+	};
+
+
+/***/ }),
+/* 34 */
+/***/ (function(module, exports) {
+
+	/* (ignored) */
+
+/***/ }),
+/* 35 */
+/***/ (function(module, exports) {
+
+	
+	var indexOf = [].indexOf;
+	
+	module.exports = function(arr, obj){
+	  if (indexOf) return arr.indexOf(obj);
+	  for (var i = 0; i < arr.length; ++i) {
+	    if (arr[i] === obj) return i;
+	  }
+	  return -1;
+	};
+
+/***/ }),
+/* 36 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+	
+	/**
+	 * Module dependencies.
+	 */
+	
+	var parser = __webpack_require__(7);
+	var Emitter = __webpack_require__(8);
+	var toArray = __webpack_require__(37);
+	var on = __webpack_require__(38);
+	var bind = __webpack_require__(39);
+	var debug = __webpack_require__(3)('socket.io-client:socket');
+	var parseqs = __webpack_require__(29);
+	var hasBin = __webpack_require__(23);
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = exports = Socket;
+	
+	/**
+	 * Internal events (blacklisted).
+	 * These events can't be emitted by the user.
+	 *
+	 * @api private
+	 */
+	
+	var events = {
+	  connect: 1,
+	  connect_error: 1,
+	  connect_timeout: 1,
+	  connecting: 1,
+	  disconnect: 1,
+	  error: 1,
+	  reconnect: 1,
+	  reconnect_attempt: 1,
+	  reconnect_failed: 1,
+	  reconnect_error: 1,
+	  reconnecting: 1,
+	  ping: 1,
+	  pong: 1
+	};
+	
+	/**
+	 * Shortcut to `Emitter#emit`.
+	 */
+	
+	var emit = Emitter.prototype.emit;
+	
+	/**
+	 * `Socket` constructor.
+	 *
+	 * @api public
+	 */
+	
+	function Socket(io, nsp, opts) {
+	  this.io = io;
+	  this.nsp = nsp;
+	  this.json = this; // compat
+	  this.ids = 0;
+	  this.acks = {};
+	  this.receiveBuffer = [];
+	  this.sendBuffer = [];
+	  this.connected = false;
+	  this.disconnected = true;
+	  this.flags = {};
+	  if (opts && opts.query) {
+	    this.query = opts.query;
+	  }
+	  if (this.io.autoConnect) this.open();
+	}
+	
+	/**
+	 * Mix in `Emitter`.
+	 */
+	
+	Emitter(Socket.prototype);
+	
+	/**
+	 * Subscribe to open, close and packet events
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.subEvents = function () {
+	  if (this.subs) return;
+	
+	  var io = this.io;
+	  this.subs = [on(io, 'open', bind(this, 'onopen')), on(io, 'packet', bind(this, 'onpacket')), on(io, 'close', bind(this, 'onclose'))];
+	};
+	
+	/**
+	 * "Opens" the socket.
+	 *
+	 * @api public
+	 */
+	
+	Socket.prototype.open = Socket.prototype.connect = function () {
+	  if (this.connected) return this;
+	
+	  this.subEvents();
+	  this.io.open(); // ensure open
+	  if ('open' === this.io.readyState) this.onopen();
+	  this.emit('connecting');
+	  return this;
+	};
+	
+	/**
+	 * Sends a `message` event.
+	 *
+	 * @return {Socket} self
+	 * @api public
+	 */
+	
+	Socket.prototype.send = function () {
+	  var args = toArray(arguments);
+	  args.unshift('message');
+	  this.emit.apply(this, args);
+	  return this;
+	};
+	
+	/**
+	 * Override `emit`.
+	 * If the event is in `events`, it's emitted normally.
+	 *
+	 * @param {String} event name
+	 * @return {Socket} self
+	 * @api public
+	 */
+	
+	Socket.prototype.emit = function (ev) {
+	  if (events.hasOwnProperty(ev)) {
+	    emit.apply(this, arguments);
+	    return this;
+	  }
+	
+	  var args = toArray(arguments);
+	  var packet = {
+	    type: (this.flags.binary !== undefined ? this.flags.binary : hasBin(args)) ? parser.BINARY_EVENT : parser.EVENT,
+	    data: args
+	  };
+	
+	  packet.options = {};
+	  packet.options.compress = !this.flags || false !== this.flags.compress;
+	
+	  // event ack callback
+	  if ('function' === typeof args[args.length - 1]) {
+	    debug('emitting packet with ack id %d', this.ids);
+	    this.acks[this.ids] = args.pop();
+	    packet.id = this.ids++;
+	  }
+	
+	  if (this.connected) {
+	    this.packet(packet);
+	  } else {
+	    this.sendBuffer.push(packet);
+	  }
+	
+	  this.flags = {};
+	
+	  return this;
+	};
+	
+	/**
+	 * Sends a packet.
+	 *
+	 * @param {Object} packet
+	 * @api private
+	 */
+	
+	Socket.prototype.packet = function (packet) {
+	  packet.nsp = this.nsp;
+	  this.io.packet(packet);
+	};
+	
+	/**
+	 * Called upon engine `open`.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.onopen = function () {
+	  debug('transport is open - connecting');
+	
+	  // write connect packet if necessary
+	  if ('/' !== this.nsp) {
+	    if (this.query) {
+	      var query = _typeof(this.query) === 'object' ? parseqs.encode(this.query) : this.query;
+	      debug('sending connect packet with query %s', query);
+	      this.packet({ type: parser.CONNECT, query: query });
+	    } else {
+	      this.packet({ type: parser.CONNECT });
+	    }
+	  }
+	};
+	
+	/**
+	 * Called upon engine `close`.
+	 *
+	 * @param {String} reason
+	 * @api private
+	 */
+	
+	Socket.prototype.onclose = function (reason) {
+	  debug('close (%s)', reason);
+	  this.connected = false;
+	  this.disconnected = true;
+	  delete this.id;
+	  this.emit('disconnect', reason);
+	};
+	
+	/**
+	 * Called with socket packet.
+	 *
+	 * @param {Object} packet
+	 * @api private
+	 */
+	
+	Socket.prototype.onpacket = function (packet) {
+	  var sameNamespace = packet.nsp === this.nsp;
+	  var rootNamespaceError = packet.type === parser.ERROR && packet.nsp === '/';
+	
+	  if (!sameNamespace && !rootNamespaceError) return;
+	
+	  switch (packet.type) {
+	    case parser.CONNECT:
+	      this.onconnect();
+	      break;
+	
+	    case parser.EVENT:
+	      this.onevent(packet);
+	      break;
+	
+	    case parser.BINARY_EVENT:
+	      this.onevent(packet);
+	      break;
+	
+	    case parser.ACK:
+	      this.onack(packet);
+	      break;
+	
+	    case parser.BINARY_ACK:
+	      this.onack(packet);
+	      break;
+	
+	    case parser.DISCONNECT:
+	      this.ondisconnect();
+	      break;
+	
+	    case parser.ERROR:
+	      this.emit('error', packet.data);
+	      break;
+	  }
+	};
+	
+	/**
+	 * Called upon a server event.
+	 *
+	 * @param {Object} packet
+	 * @api private
+	 */
+	
+	Socket.prototype.onevent = function (packet) {
+	  var args = packet.data || [];
+	  debug('emitting event %j', args);
+	
+	  if (null != packet.id) {
+	    debug('attaching ack callback to event');
+	    args.push(this.ack(packet.id));
+	  }
+	
+	  if (this.connected) {
+	    emit.apply(this, args);
+	  } else {
+	    this.receiveBuffer.push(args);
+	  }
+	};
+	
+	/**
+	 * Produces an ack callback to emit with an event.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.ack = function (id) {
+	  var self = this;
+	  var sent = false;
+	  return function () {
+	    // prevent double callbacks
+	    if (sent) return;
+	    sent = true;
+	    var args = toArray(arguments);
+	    debug('sending ack %j', args);
+	
+	    self.packet({
+	      type: hasBin(args) ? parser.BINARY_ACK : parser.ACK,
+	      id: id,
+	      data: args
+	    });
+	  };
+	};
+	
+	/**
+	 * Called upon a server acknowlegement.
+	 *
+	 * @param {Object} packet
+	 * @api private
+	 */
+	
+	Socket.prototype.onack = function (packet) {
+	  var ack = this.acks[packet.id];
+	  if ('function' === typeof ack) {
+	    debug('calling ack %s with %j', packet.id, packet.data);
+	    ack.apply(this, packet.data);
+	    delete this.acks[packet.id];
+	  } else {
+	    debug('bad ack %s', packet.id);
+	  }
+	};
+	
+	/**
+	 * Called upon server connect.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.onconnect = function () {
+	  this.connected = true;
+	  this.disconnected = false;
+	  this.emit('connect');
+	  this.emitBuffered();
+	};
+	
+	/**
+	 * Emit buffered events (received and emitted).
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.emitBuffered = function () {
+	  var i;
+	  for (i = 0; i < this.receiveBuffer.length; i++) {
+	    emit.apply(this, this.receiveBuffer[i]);
+	  }
+	  this.receiveBuffer = [];
+	
+	  for (i = 0; i < this.sendBuffer.length; i++) {
+	    this.packet(this.sendBuffer[i]);
+	  }
+	  this.sendBuffer = [];
+	};
+	
+	/**
+	 * Called upon server disconnect.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.ondisconnect = function () {
+	  debug('server disconnect (%s)', this.nsp);
+	  this.destroy();
+	  this.onclose('io server disconnect');
+	};
+	
+	/**
+	 * Called upon forced client/server side disconnections,
+	 * this method ensures the manager stops tracking us and
+	 * that reconnections don't get triggered for this.
+	 *
+	 * @api private.
+	 */
+	
+	Socket.prototype.destroy = function () {
+	  if (this.subs) {
+	    // clean subscriptions to avoid reconnections
+	    for (var i = 0; i < this.subs.length; i++) {
+	      this.subs[i].destroy();
+	    }
+	    this.subs = null;
+	  }
+	
+	  this.io.destroy(this);
+	};
+	
+	/**
+	 * Disconnects the socket manually.
+	 *
+	 * @return {Socket} self
+	 * @api public
+	 */
+	
+	Socket.prototype.close = Socket.prototype.disconnect = function () {
+	  if (this.connected) {
+	    debug('performing disconnect (%s)', this.nsp);
+	    this.packet({ type: parser.DISCONNECT });
+	  }
+	
+	  // remove socket from pool
+	  this.destroy();
+	
+	  if (this.connected) {
+	    // fire events
+	    this.onclose('io client disconnect');
+	  }
+	  return this;
+	};
+	
+	/**
+	 * Sets the compress flag.
+	 *
+	 * @param {Boolean} if `true`, compresses the sending data
+	 * @return {Socket} self
+	 * @api public
+	 */
+	
+	Socket.prototype.compress = function (compress) {
+	  this.flags.compress = compress;
+	  return this;
+	};
+	
+	/**
+	 * Sets the binary flag
+	 *
+	 * @param {Boolean} whether the emitted data contains binary
+	 * @return {Socket} self
+	 * @api public
+	 */
+	
+	Socket.prototype.binary = function (binary) {
+	  this.flags.binary = binary;
+	  return this;
+	};
+
+/***/ }),
+/* 37 */
+/***/ (function(module, exports) {
+
+	module.exports = toArray
+	
+	function toArray(list, index) {
+	    var array = []
+	
+	    index = index || 0
+	
+	    for (var i = index || 0; i < list.length; i++) {
+	        array[i - index] = list[i]
+	    }
+	
+	    return array
+	}
+
+
+/***/ }),
+/* 38 */
+/***/ (function(module, exports) {
+
+	"use strict";
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = on;
+	
+	/**
+	 * Helper for subscriptions.
+	 *
+	 * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`
+	 * @param {String} event name
+	 * @param {Function} callback
+	 * @api public
+	 */
+	
+	function on(obj, ev, fn) {
+	  obj.on(ev, fn);
+	  return {
+	    destroy: function destroy() {
+	      obj.removeListener(ev, fn);
+	    }
+	  };
+	}
+
+/***/ }),
+/* 39 */
+/***/ (function(module, exports) {
+
+	/**
+	 * Slice reference.
+	 */
+	
+	var slice = [].slice;
+	
+	/**
+	 * Bind `obj` to `fn`.
+	 *
+	 * @param {Object} obj
+	 * @param {Function|String} fn or string
+	 * @return {Function}
+	 * @api public
+	 */
+	
+	module.exports = function(obj, fn){
+	  if ('string' == typeof fn) fn = obj[fn];
+	  if ('function' != typeof fn) throw new Error('bind() requires a function');
+	  var args = slice.call(arguments, 2);
+	  return function(){
+	    return fn.apply(obj, args.concat(slice.call(arguments)));
+	  }
+	};
+
+
+/***/ }),
+/* 40 */
+/***/ (function(module, exports) {
+
+	
+	/**
+	 * Expose `Backoff`.
+	 */
+	
+	module.exports = Backoff;
+	
+	/**
+	 * Initialize backoff timer with `opts`.
+	 *
+	 * - `min` initial timeout in milliseconds [100]
+	 * - `max` max timeout [10000]
+	 * - `jitter` [0]
+	 * - `factor` [2]
+	 *
+	 * @param {Object} opts
+	 * @api public
+	 */
+	
+	function Backoff(opts) {
+	  opts = opts || {};
+	  this.ms = opts.min || 100;
+	  this.max = opts.max || 10000;
+	  this.factor = opts.factor || 2;
+	  this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;
+	  this.attempts = 0;
+	}
+	
+	/**
+	 * Return the backoff duration.
+	 *
+	 * @return {Number}
+	 * @api public
+	 */
+	
+	Backoff.prototype.duration = function(){
+	  var ms = this.ms * Math.pow(this.factor, this.attempts++);
+	  if (this.jitter) {
+	    var rand =  Math.random();
+	    var deviation = Math.floor(rand * this.jitter * ms);
+	    ms = (Math.floor(rand * 10) & 1) == 0  ? ms - deviation : ms + deviation;
+	  }
+	  return Math.min(ms, this.max) | 0;
+	};
+	
+	/**
+	 * Reset the number of attempts.
+	 *
+	 * @api public
+	 */
+	
+	Backoff.prototype.reset = function(){
+	  this.attempts = 0;
+	};
+	
+	/**
+	 * Set the minimum duration
+	 *
+	 * @api public
+	 */
+	
+	Backoff.prototype.setMin = function(min){
+	  this.ms = min;
+	};
+	
+	/**
+	 * Set the maximum duration
+	 *
+	 * @api public
+	 */
+	
+	Backoff.prototype.setMax = function(max){
+	  this.max = max;
+	};
+	
+	/**
+	 * Set the jitter
+	 *
+	 * @api public
+	 */
+	
+	Backoff.prototype.setJitter = function(jitter){
+	  this.jitter = jitter;
+	};
+	
+
+
+/***/ })
+/******/ ])
+});
+;
+//# sourceMappingURL=socket.io.dev.js.map
\ No newline at end of file
diff --git a/helloworld/node_modules/socket.io-client/dist/socket.io.dev.js.map b/helloworld/node_modules/socket.io-client/dist/socket.io.dev.js.map
new file mode 100755
index 0000000..0937bbe
--- /dev/null
+++ b/helloworld/node_modules/socket.io-client/dist/socket.io.dev.js.map
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`io('http://localhost/a');`\n *   `io('http://localhost/b');`\n *\n * We reuse the existing instance based on same scheme/port/host,\n * and we initialize sockets for each namespace.\n *\n * @api public\n */\n\nfunction lookup (uri, opts) {\n  if (typeof uri === 'object') {\n    opts = uri;\n    uri = undefined;\n  }\n\n  opts = opts || {};\n\n  var parsed = url(uri);\n  var source = parsed.source;\n  var id = parsed.id;\n  var path = parsed.path;\n  var sameNamespace = cache[id] && path in cache[id].nsps;\n  var newConnection = opts.forceNew || opts['force new connection'] ||\n                      false === opts.multiplex || sameNamespace;\n\n  var io;\n\n  if (newConnection) {\n    debug('ignoring socket cache for %s', source);\n    io = Manager(source, opts);\n  } else {\n    if (!cache[id]) {\n      debug('new io instance for %s', source);\n      cache[id] = Manager(source, opts);\n    }\n    io = cache[id];\n  }\n  if (parsed.query && !opts.query) {\n    opts.query = parsed.query;\n  }\n  return io.socket(parsed.path, opts);\n}\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nexports.protocol = parser.protocol;\n\n/**\n * `connect`.\n *\n * @param {String} uri\n * @api public\n */\n\nexports.connect = lookup;\n\n/**\n * Expose constructors for standalone build.\n *\n * @api public\n */\n\nexports.Manager = require('./manager');\nexports.Socket = require('./socket');\n\n\n\n// WEBPACK FOOTER //\n// ./lib/index.js","\n/**\n * Module dependencies.\n */\n\nvar parseuri = require('parseuri');\nvar debug = require('debug')('socket.io-client:url');\n\n/**\n * Module exports.\n */\n\nmodule.exports = url;\n\n/**\n * URL parser.\n *\n * @param {String} url\n * @param {Object} An object meant to mimic window.location.\n *                 Defaults to window.location.\n * @api public\n */\n\nfunction url (uri, loc) {\n  var obj = uri;\n\n  // default to window.location\n  loc = loc || (typeof location !== 'undefined' && location);\n  if (null == uri) uri = loc.protocol + '//' + loc.host;\n\n  // relative path support\n  if ('string' === typeof uri) {\n    if ('/' === uri.charAt(0)) {\n      if ('/' === uri.charAt(1)) {\n        uri = loc.protocol + uri;\n      } else {\n        uri = loc.host + uri;\n      }\n    }\n\n    if (!/^(https?|wss?):\\/\\//.test(uri)) {\n      debug('protocol-less url %s', uri);\n      if ('undefined' !== typeof loc) {\n        uri = loc.protocol + '//' + uri;\n      } else {\n        uri = 'https://' + uri;\n      }\n    }\n\n    // parse\n    debug('parse %s', uri);\n    obj = parseuri(uri);\n  }\n\n  // make sure we treat `localhost:80` and `localhost` equally\n  if (!obj.port) {\n    if (/^(http|ws)$/.test(obj.protocol)) {\n      obj.port = '80';\n    } else if (/^(http|ws)s$/.test(obj.protocol)) {\n      obj.port = '443';\n    }\n  }\n\n  obj.path = obj.path || '/';\n\n  var ipv6 = obj.host.indexOf(':') !== -1;\n  var host = ipv6 ? '[' + obj.host + ']' : obj.host;\n\n  // define unique id\n  obj.id = obj.protocol + '://' + host + ':' + obj.port;\n  // define href\n  obj.href = obj.protocol + '://' + host + (loc && loc.port === obj.port ? '' : (':' + obj.port));\n\n  return obj;\n}\n\n\n\n// WEBPACK FOOTER //\n// ./lib/url.js","/**\r\n * Parses an URI\r\n *\r\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\r\n * @api private\r\n */\r\n\r\nvar re = /^(?:(?![^:@]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\r\n\r\nvar parts = [\r\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\r\n];\r\n\r\nmodule.exports = function parseuri(str) {\r\n    var src = str,\r\n        b = str.indexOf('['),\r\n        e = str.indexOf(']');\r\n\r\n    if (b != -1 && e != -1) {\r\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\r\n    }\r\n\r\n    var m = re.exec(str || ''),\r\n        uri = {},\r\n        i = 14;\r\n\r\n    while (i--) {\r\n        uri[parts[i]] = m[i] || '';\r\n    }\r\n\r\n    if (b != -1 && e != -1) {\r\n        uri.source = src;\r\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\r\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\r\n        uri.ipv6uri = true;\r\n    }\r\n\r\n    return uri;\r\n};\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/parseuri/index.js\n// module id = 2\n// module chunks = 0","/**\n * This is the web browser implementation of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = require('./debug');\nexports.log = log;\nexports.formatArgs = formatArgs;\nexports.save = save;\nexports.load = load;\nexports.useColors = useColors;\nexports.storage = 'undefined' != typeof chrome\n               && 'undefined' != typeof chrome.storage\n                  ? chrome.storage.local\n                  : localstorage();\n\n/**\n * Colors.\n */\n\nexports.colors = [\n  '#0000CC', '#0000FF', '#0033CC', '#0033FF', '#0066CC', '#0066FF', '#0099CC',\n  '#0099FF', '#00CC00', '#00CC33', '#00CC66', '#00CC99', '#00CCCC', '#00CCFF',\n  '#3300CC', '#3300FF', '#3333CC', '#3333FF', '#3366CC', '#3366FF', '#3399CC',\n  '#3399FF', '#33CC00', '#33CC33', '#33CC66', '#33CC99', '#33CCCC', '#33CCFF',\n  '#6600CC', '#6600FF', '#6633CC', '#6633FF', '#66CC00', '#66CC33', '#9900CC',\n  '#9900FF', '#9933CC', '#9933FF', '#99CC00', '#99CC33', '#CC0000', '#CC0033',\n  '#CC0066', '#CC0099', '#CC00CC', '#CC00FF', '#CC3300', '#CC3333', '#CC3366',\n  '#CC3399', '#CC33CC', '#CC33FF', '#CC6600', '#CC6633', '#CC9900', '#CC9933',\n  '#CCCC00', '#CCCC33', '#FF0000', '#FF0033', '#FF0066', '#FF0099', '#FF00CC',\n  '#FF00FF', '#FF3300', '#FF3333', '#FF3366', '#FF3399', '#FF33CC', '#FF33FF',\n  '#FF6600', '#FF6633', '#FF9900', '#FF9933', '#FFCC00', '#FFCC33'\n];\n\n/**\n * Currently only WebKit-based Web Inspectors, Firefox >= v31,\n * and the Firebug extension (any Firefox version) are known\n * to support \"%c\" CSS customizations.\n *\n * TODO: add a `localStorage` variable to explicitly enable/disable colors\n */\n\nfunction useColors() {\n  // NB: In an Electron preload script, document will be defined but not fully\n  // initialized. Since we know we're in Chrome, we'll just detect this case\n  // explicitly\n  if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {\n    return true;\n  }\n\n  // Internet Explorer and Edge do not support colors.\n  if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\\/(\\d+)/)) {\n    return false;\n  }\n\n  // is webkit? http://stackoverflow.com/a/16459606/376773\n  // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632\n  return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||\n    // is firebug? http://stackoverflow.com/a/398120/376773\n    (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||\n    // is firefox >= v31?\n    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages\n    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\\/(\\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||\n    // double check webkit in userAgent just in case we are in a worker\n    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\\/(\\d+)/));\n}\n\n/**\n * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.\n */\n\nexports.formatters.j = function(v) {\n  try {\n    return JSON.stringify(v);\n  } catch (err) {\n    return '[UnexpectedJSONParseError]: ' + err.message;\n  }\n};\n\n\n/**\n * Colorize log arguments if enabled.\n *\n * @api public\n */\n\nfunction formatArgs(args) {\n  var useColors = this.useColors;\n\n  args[0] = (useColors ? '%c' : '')\n    + this.namespace\n    + (useColors ? ' %c' : ' ')\n    + args[0]\n    + (useColors ? '%c ' : ' ')\n    + '+' + exports.humanize(this.diff);\n\n  if (!useColors) return;\n\n  var c = 'color: ' + this.color;\n  args.splice(1, 0, c, 'color: inherit')\n\n  // the final \"%c\" is somewhat tricky, because there could be other\n  // arguments passed either before or after the %c, so we need to\n  // figure out the correct index to insert the CSS into\n  var index = 0;\n  var lastC = 0;\n  args[0].replace(/%[a-zA-Z%]/g, function(match) {\n    if ('%%' === match) return;\n    index++;\n    if ('%c' === match) {\n      // we only are interested in the *last* %c\n      // (the user may have provided their own)\n      lastC = index;\n    }\n  });\n\n  args.splice(lastC, 0, c);\n}\n\n/**\n * Invokes `console.log()` when available.\n * No-op when `console.log` is not a \"function\".\n *\n * @api public\n */\n\nfunction log() {\n  // this hackery is required for IE8/9, where\n  // the `console.log` function doesn't have 'apply'\n  return 'object' === typeof console\n    && console.log\n    && Function.prototype.apply.call(console.log, console, arguments);\n}\n\n/**\n * Save `namespaces`.\n *\n * @param {String} namespaces\n * @api private\n */\n\nfunction save(namespaces) {\n  try {\n    if (null == namespaces) {\n      exports.storage.removeItem('debug');\n    } else {\n      exports.storage.debug = namespaces;\n    }\n  } catch(e) {}\n}\n\n/**\n * Load `namespaces`.\n *\n * @return {String} returns the previously persisted debug modes\n * @api private\n */\n\nfunction load() {\n  var r;\n  try {\n    r = exports.storage.debug;\n  } catch(e) {}\n\n  // If debug isn't set in LS, and we're in Electron, try to load $DEBUG\n  if (!r && typeof process !== 'undefined' && 'env' in process) {\n    r = process.env.DEBUG;\n  }\n\n  return r;\n}\n\n/**\n * Enable namespaces listed in `localStorage.debug` initially.\n */\n\nexports.enable(load());\n\n/**\n * Localstorage attempts to return the localstorage.\n *\n * This is necessary because safari throws\n * when a user disables cookies/localstorage\n * and you attempt to access it.\n *\n * @return {LocalStorage}\n * @api private\n */\n\nfunction localstorage() {\n  try {\n    return window.localStorage;\n  } catch (e) {}\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/debug/src/browser.js\n// module id = 3\n// module chunks = 0","// shim for using process in browser\nvar process = module.exports = {};\n\n// cached from whatever global is present so that test runners that stub it\n// don't break things.  But we need to wrap it in a try catch in case it is\n// wrapped in strict mode code which doesn't define any globals.  It's inside a\n// function because try/catches deoptimize in certain engines.\n\nvar cachedSetTimeout;\nvar cachedClearTimeout;\n\nfunction defaultSetTimout() {\n    throw new Error('setTimeout has not been defined');\n}\nfunction defaultClearTimeout () {\n    throw new Error('clearTimeout has not been defined');\n}\n(function () {\n    try {\n        if (typeof setTimeout === 'function') {\n            cachedSetTimeout = setTimeout;\n        } else {\n            cachedSetTimeout = defaultSetTimout;\n        }\n    } catch (e) {\n        cachedSetTimeout = defaultSetTimout;\n    }\n    try {\n        if (typeof clearTimeout === 'function') {\n            cachedClearTimeout = clearTimeout;\n        } else {\n            cachedClearTimeout = defaultClearTimeout;\n        }\n    } catch (e) {\n        cachedClearTimeout = defaultClearTimeout;\n    }\n} ())\nfunction runTimeout(fun) {\n    if (cachedSetTimeout === setTimeout) {\n        //normal enviroments in sane situations\n        return setTimeout(fun, 0);\n    }\n    // if setTimeout wasn't available but was latter defined\n    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {\n        cachedSetTimeout = setTimeout;\n        return setTimeout(fun, 0);\n    }\n    try {\n        // when when somebody has screwed with setTimeout but no I.E. maddness\n        return cachedSetTimeout(fun, 0);\n    } catch(e){\n        try {\n            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally\n            return cachedSetTimeout.call(null, fun, 0);\n        } catch(e){\n            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error\n            return cachedSetTimeout.call(this, fun, 0);\n        }\n    }\n\n\n}\nfunction runClearTimeout(marker) {\n    if (cachedClearTimeout === clearTimeout) {\n        //normal enviroments in sane situations\n        return clearTimeout(marker);\n    }\n    // if clearTimeout wasn't available but was latter defined\n    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {\n        cachedClearTimeout = clearTimeout;\n        return clearTimeout(marker);\n    }\n    try {\n        // when when somebody has screwed with setTimeout but no I.E. maddness\n        return cachedClearTimeout(marker);\n    } catch (e){\n        try {\n            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally\n            return cachedClearTimeout.call(null, marker);\n        } catch (e){\n            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.\n            // Some versions of I.E. have different rules for clearTimeout vs setTimeout\n            return cachedClearTimeout.call(this, marker);\n        }\n    }\n\n\n\n}\nvar queue = [];\nvar draining = false;\nvar currentQueue;\nvar queueIndex = -1;\n\nfunction cleanUpNextTick() {\n    if (!draining || !currentQueue) {\n        return;\n    }\n    draining = false;\n    if (currentQueue.length) {\n        queue = currentQueue.concat(queue);\n    } else {\n        queueIndex = -1;\n    }\n    if (queue.length) {\n        drainQueue();\n    }\n}\n\nfunction drainQueue() {\n    if (draining) {\n        return;\n    }\n    var timeout = runTimeout(cleanUpNextTick);\n    draining = true;\n\n    var len = queue.length;\n    while(len) {\n        currentQueue = queue;\n        queue = [];\n        while (++queueIndex < len) {\n            if (currentQueue) {\n                currentQueue[queueIndex].run();\n            }\n        }\n        queueIndex = -1;\n        len = queue.length;\n    }\n    currentQueue = null;\n    draining = false;\n    runClearTimeout(timeout);\n}\n\nprocess.nextTick = function (fun) {\n    var args = new Array(arguments.length - 1);\n    if (arguments.length > 1) {\n        for (var i = 1; i < arguments.length; i++) {\n            args[i - 1] = arguments[i];\n        }\n    }\n    queue.push(new Item(fun, args));\n    if (queue.length === 1 && !draining) {\n        runTimeout(drainQueue);\n    }\n};\n\n// v8 likes predictible objects\nfunction Item(fun, array) {\n    this.fun = fun;\n    this.array = array;\n}\nItem.prototype.run = function () {\n    this.fun.apply(null, this.array);\n};\nprocess.title = 'browser';\nprocess.browser = true;\nprocess.env = {};\nprocess.argv = [];\nprocess.version = ''; // empty string to avoid regexp issues\nprocess.versions = {};\n\nfunction noop() {}\n\nprocess.on = noop;\nprocess.addListener = noop;\nprocess.once = noop;\nprocess.off = noop;\nprocess.removeListener = noop;\nprocess.removeAllListeners = noop;\nprocess.emit = noop;\nprocess.prependListener = noop;\nprocess.prependOnceListener = noop;\n\nprocess.listeners = function (name) { return [] }\n\nprocess.binding = function (name) {\n    throw new Error('process.binding is not supported');\n};\n\nprocess.cwd = function () { return '/' };\nprocess.chdir = function (dir) {\n    throw new Error('process.chdir is not supported');\n};\nprocess.umask = function() { return 0; };\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/process/browser.js\n// module id = 4\n// module chunks = 0","\n/**\n * This is the common logic for both the Node.js and web browser\n * implementations of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = createDebug.debug = createDebug['default'] = createDebug;\nexports.coerce = coerce;\nexports.disable = disable;\nexports.enable = enable;\nexports.enabled = enabled;\nexports.humanize = require('ms');\n\n/**\n * Active `debug` instances.\n */\nexports.instances = [];\n\n/**\n * The currently active debug mode names, and names to skip.\n */\n\nexports.names = [];\nexports.skips = [];\n\n/**\n * Map of special \"%n\" handling functions, for the debug \"format\" argument.\n *\n * Valid key names are a single, lower or upper-case letter, i.e. \"n\" and \"N\".\n */\n\nexports.formatters = {};\n\n/**\n * Select a color.\n * @param {String} namespace\n * @return {Number}\n * @api private\n */\n\nfunction selectColor(namespace) {\n  var hash = 0, i;\n\n  for (i in namespace) {\n    hash  = ((hash << 5) - hash) + namespace.charCodeAt(i);\n    hash |= 0; // Convert to 32bit integer\n  }\n\n  return exports.colors[Math.abs(hash) % exports.colors.length];\n}\n\n/**\n * Create a debugger with the given `namespace`.\n *\n * @param {String} namespace\n * @return {Function}\n * @api public\n */\n\nfunction createDebug(namespace) {\n\n  var prevTime;\n\n  function debug() {\n    // disabled?\n    if (!debug.enabled) return;\n\n    var self = debug;\n\n    // set `diff` timestamp\n    var curr = +new Date();\n    var ms = curr - (prevTime || curr);\n    self.diff = ms;\n    self.prev = prevTime;\n    self.curr = curr;\n    prevTime = curr;\n\n    // turn the `arguments` into a proper Array\n    var args = new Array(arguments.length);\n    for (var i = 0; i < args.length; i++) {\n      args[i] = arguments[i];\n    }\n\n    args[0] = exports.coerce(args[0]);\n\n    if ('string' !== typeof args[0]) {\n      // anything else let's inspect with %O\n      args.unshift('%O');\n    }\n\n    // apply any `formatters` transformations\n    var index = 0;\n    args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {\n      // if we encounter an escaped % then don't increase the array index\n      if (match === '%%') return match;\n      index++;\n      var formatter = exports.formatters[format];\n      if ('function' === typeof formatter) {\n        var val = args[index];\n        match = formatter.call(self, val);\n\n        // now we need to remove `args[index]` since it's inlined in the `format`\n        args.splice(index, 1);\n        index--;\n      }\n      return match;\n    });\n\n    // apply env-specific formatting (colors, etc.)\n    exports.formatArgs.call(self, args);\n\n    var logFn = debug.log || exports.log || console.log.bind(console);\n    logFn.apply(self, args);\n  }\n\n  debug.namespace = namespace;\n  debug.enabled = exports.enabled(namespace);\n  debug.useColors = exports.useColors();\n  debug.color = selectColor(namespace);\n  debug.destroy = destroy;\n\n  // env-specific initialization logic for debug instances\n  if ('function' === typeof exports.init) {\n    exports.init(debug);\n  }\n\n  exports.instances.push(debug);\n\n  return debug;\n}\n\nfunction destroy () {\n  var index = exports.instances.indexOf(this);\n  if (index !== -1) {\n    exports.instances.splice(index, 1);\n    return true;\n  } else {\n    return false;\n  }\n}\n\n/**\n * Enables a debug mode by namespaces. This can include modes\n * separated by a colon and wildcards.\n *\n * @param {String} namespaces\n * @api public\n */\n\nfunction enable(namespaces) {\n  exports.save(namespaces);\n\n  exports.names = [];\n  exports.skips = [];\n\n  var i;\n  var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\\s,]+/);\n  var len = split.length;\n\n  for (i = 0; i < len; i++) {\n    if (!split[i]) continue; // ignore empty strings\n    namespaces = split[i].replace(/\\*/g, '.*?');\n    if (namespaces[0] === '-') {\n      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));\n    } else {\n      exports.names.push(new RegExp('^' + namespaces + '$'));\n    }\n  }\n\n  for (i = 0; i < exports.instances.length; i++) {\n    var instance = exports.instances[i];\n    instance.enabled = exports.enabled(instance.namespace);\n  }\n}\n\n/**\n * Disable debug output.\n *\n * @api public\n */\n\nfunction disable() {\n  exports.enable('');\n}\n\n/**\n * Returns true if the given mode name is enabled, false otherwise.\n *\n * @param {String} name\n * @return {Boolean}\n * @api public\n */\n\nfunction enabled(name) {\n  if (name[name.length - 1] === '*') {\n    return true;\n  }\n  var i, len;\n  for (i = 0, len = exports.skips.length; i < len; i++) {\n    if (exports.skips[i].test(name)) {\n      return false;\n    }\n  }\n  for (i = 0, len = exports.names.length; i < len; i++) {\n    if (exports.names[i].test(name)) {\n      return true;\n    }\n  }\n  return false;\n}\n\n/**\n * Coerce `val`.\n *\n * @param {Mixed} val\n * @return {Mixed}\n * @api private\n */\n\nfunction coerce(val) {\n  if (val instanceof Error) return val.stack || val.message;\n  return val;\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/debug/src/debug.js\n// module id = 5\n// module chunks = 0","/**\n * Helpers.\n */\n\nvar s = 1000;\nvar m = s * 60;\nvar h = m * 60;\nvar d = h * 24;\nvar y = d * 365.25;\n\n/**\n * Parse or format the given `val`.\n *\n * Options:\n *\n *  - `long` verbose formatting [false]\n *\n * @param {String|Number} val\n * @param {Object} [options]\n * @throws {Error} throw an error if val is not a non-empty string or a number\n * @return {String|Number}\n * @api public\n */\n\nmodule.exports = function(val, options) {\n  options = options || {};\n  var type = typeof val;\n  if (type === 'string' && val.length > 0) {\n    return parse(val);\n  } else if (type === 'number' && isNaN(val) === false) {\n    return options.long ? fmtLong(val) : fmtShort(val);\n  }\n  throw new Error(\n    'val is not a non-empty string or a valid number. val=' +\n      JSON.stringify(val)\n  );\n};\n\n/**\n * Parse the given `str` and return milliseconds.\n *\n * @param {String} str\n * @return {Number}\n * @api private\n */\n\nfunction parse(str) {\n  str = String(str);\n  if (str.length > 100) {\n    return;\n  }\n  var match = /^((?:\\d+)?\\.?\\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(\n    str\n  );\n  if (!match) {\n    return;\n  }\n  var n = parseFloat(match[1]);\n  var type = (match[2] || 'ms').toLowerCase();\n  switch (type) {\n    case 'years':\n    case 'year':\n    case 'yrs':\n    case 'yr':\n    case 'y':\n      return n * y;\n    case 'days':\n    case 'day':\n    case 'd':\n      return n * d;\n    case 'hours':\n    case 'hour':\n    case 'hrs':\n    case 'hr':\n    case 'h':\n      return n * h;\n    case 'minutes':\n    case 'minute':\n    case 'mins':\n    case 'min':\n    case 'm':\n      return n * m;\n    case 'seconds':\n    case 'second':\n    case 'secs':\n    case 'sec':\n    case 's':\n      return n * s;\n    case 'milliseconds':\n    case 'millisecond':\n    case 'msecs':\n    case 'msec':\n    case 'ms':\n      return n;\n    default:\n      return undefined;\n  }\n}\n\n/**\n * Short format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction fmtShort(ms) {\n  if (ms >= d) {\n    return Math.round(ms / d) + 'd';\n  }\n  if (ms >= h) {\n    return Math.round(ms / h) + 'h';\n  }\n  if (ms >= m) {\n    return Math.round(ms / m) + 'm';\n  }\n  if (ms >= s) {\n    return Math.round(ms / s) + 's';\n  }\n  return ms + 'ms';\n}\n\n/**\n * Long format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction fmtLong(ms) {\n  return plural(ms, d, 'day') ||\n    plural(ms, h, 'hour') ||\n    plural(ms, m, 'minute') ||\n    plural(ms, s, 'second') ||\n    ms + ' ms';\n}\n\n/**\n * Pluralization helper.\n */\n\nfunction plural(ms, n, name) {\n  if (ms < n) {\n    return;\n  }\n  if (ms < n * 1.5) {\n    return Math.floor(ms / n) + ' ' + name;\n  }\n  return Math.ceil(ms / n) + ' ' + name + 's';\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/ms/index.js\n// module id = 6\n// module chunks = 0","\n/**\n * Module dependencies.\n */\n\nvar debug = require('debug')('socket.io-parser');\nvar Emitter = require('component-emitter');\nvar binary = require('./binary');\nvar isArray = require('isarray');\nvar isBuf = require('./is-buffer');\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nexports.protocol = 4;\n\n/**\n * Packet types.\n *\n * @api public\n */\n\nexports.types = [\n  'CONNECT',\n  'DISCONNECT',\n  'EVENT',\n  'ACK',\n  'ERROR',\n  'BINARY_EVENT',\n  'BINARY_ACK'\n];\n\n/**\n * Packet type `connect`.\n *\n * @api public\n */\n\nexports.CONNECT = 0;\n\n/**\n * Packet type `disconnect`.\n *\n * @api public\n */\n\nexports.DISCONNECT = 1;\n\n/**\n * Packet type `event`.\n *\n * @api public\n */\n\nexports.EVENT = 2;\n\n/**\n * Packet type `ack`.\n *\n * @api public\n */\n\nexports.ACK = 3;\n\n/**\n * Packet type `error`.\n *\n * @api public\n */\n\nexports.ERROR = 4;\n\n/**\n * Packet type 'binary event'\n *\n * @api public\n */\n\nexports.BINARY_EVENT = 5;\n\n/**\n * Packet type `binary ack`. For acks with binary arguments.\n *\n * @api public\n */\n\nexports.BINARY_ACK = 6;\n\n/**\n * Encoder constructor.\n *\n * @api public\n */\n\nexports.Encoder = Encoder;\n\n/**\n * Decoder constructor.\n *\n * @api public\n */\n\nexports.Decoder = Decoder;\n\n/**\n * A socket.io Encoder instance\n *\n * @api public\n */\n\nfunction Encoder() {}\n\nvar ERROR_PACKET = exports.ERROR + '\"encode error\"';\n\n/**\n * Encode a packet as a single string if non-binary, or as a\n * buffer sequence, depending on packet type.\n *\n * @param {Object} obj - packet object\n * @param {Function} callback - function to handle encodings (likely engine.write)\n * @return Calls callback with Array of encodings\n * @api public\n */\n\nEncoder.prototype.encode = function(obj, callback){\n  debug('encoding packet %j', obj);\n\n  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {\n    encodeAsBinary(obj, callback);\n  } else {\n    var encoding = encodeAsString(obj);\n    callback([encoding]);\n  }\n};\n\n/**\n * Encode packet as string.\n *\n * @param {Object} packet\n * @return {String} encoded\n * @api private\n */\n\nfunction encodeAsString(obj) {\n\n  // first is type\n  var str = '' + obj.type;\n\n  // attachments if we have them\n  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {\n    str += obj.attachments + '-';\n  }\n\n  // if we have a namespace other than `/`\n  // we append it followed by a comma `,`\n  if (obj.nsp && '/' !== obj.nsp) {\n    str += obj.nsp + ',';\n  }\n\n  // immediately followed by the id\n  if (null != obj.id) {\n    str += obj.id;\n  }\n\n  // json data\n  if (null != obj.data) {\n    var payload = tryStringify(obj.data);\n    if (payload !== false) {\n      str += payload;\n    } else {\n      return ERROR_PACKET;\n    }\n  }\n\n  debug('encoded %j as %s', obj, str);\n  return str;\n}\n\nfunction tryStringify(str) {\n  try {\n    return JSON.stringify(str);\n  } catch(e){\n    return false;\n  }\n}\n\n/**\n * Encode packet as 'buffer sequence' by removing blobs, and\n * deconstructing packet into object with placeholders and\n * a list of buffers.\n *\n * @param {Object} packet\n * @return {Buffer} encoded\n * @api private\n */\n\nfunction encodeAsBinary(obj, callback) {\n\n  function writeEncoding(bloblessData) {\n    var deconstruction = binary.deconstructPacket(bloblessData);\n    var pack = encodeAsString(deconstruction.packet);\n    var buffers = deconstruction.buffers;\n\n    buffers.unshift(pack); // add packet info to beginning of data list\n    callback(buffers); // write all the buffers\n  }\n\n  binary.removeBlobs(obj, writeEncoding);\n}\n\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n * @api public\n */\n\nfunction Decoder() {\n  this.reconstructor = null;\n}\n\n/**\n * Mix in `Emitter` with Decoder.\n */\n\nEmitter(Decoder.prototype);\n\n/**\n * Decodes an encoded packet string into packet JSON.\n *\n * @param {String} obj - encoded packet\n * @return {Object} packet\n * @api public\n */\n\nDecoder.prototype.add = function(obj) {\n  var packet;\n  if (typeof obj === 'string') {\n    packet = decodeString(obj);\n    if (exports.BINARY_EVENT === packet.type || exports.BINARY_ACK === packet.type) { // binary packet's json\n      this.reconstructor = new BinaryReconstructor(packet);\n\n      // no attachments, labeled binary but no binary data to follow\n      if (this.reconstructor.reconPack.attachments === 0) {\n        this.emit('decoded', packet);\n      }\n    } else { // non-binary full packet\n      this.emit('decoded', packet);\n    }\n  } else if (isBuf(obj) || obj.base64) { // raw binary data\n    if (!this.reconstructor) {\n      throw new Error('got binary data when not reconstructing a packet');\n    } else {\n      packet = this.reconstructor.takeBinaryData(obj);\n      if (packet) { // received final buffer\n        this.reconstructor = null;\n        this.emit('decoded', packet);\n      }\n    }\n  } else {\n    throw new Error('Unknown type: ' + obj);\n  }\n};\n\n/**\n * Decode a packet String (JSON data)\n *\n * @param {String} str\n * @return {Object} packet\n * @api private\n */\n\nfunction decodeString(str) {\n  var i = 0;\n  // look up type\n  var p = {\n    type: Number(str.charAt(0))\n  };\n\n  if (null == exports.types[p.type]) {\n    return error('unknown packet type ' + p.type);\n  }\n\n  // look up attachments if type binary\n  if (exports.BINARY_EVENT === p.type || exports.BINARY_ACK === p.type) {\n    var buf = '';\n    while (str.charAt(++i) !== '-') {\n      buf += str.charAt(i);\n      if (i == str.length) break;\n    }\n    if (buf != Number(buf) || str.charAt(i) !== '-') {\n      throw new Error('Illegal attachments');\n    }\n    p.attachments = Number(buf);\n  }\n\n  // look up namespace (if any)\n  if ('/' === str.charAt(i + 1)) {\n    p.nsp = '';\n    while (++i) {\n      var c = str.charAt(i);\n      if (',' === c) break;\n      p.nsp += c;\n      if (i === str.length) break;\n    }\n  } else {\n    p.nsp = '/';\n  }\n\n  // look up id\n  var next = str.charAt(i + 1);\n  if ('' !== next && Number(next) == next) {\n    p.id = '';\n    while (++i) {\n      var c = str.charAt(i);\n      if (null == c || Number(c) != c) {\n        --i;\n        break;\n      }\n      p.id += str.charAt(i);\n      if (i === str.length) break;\n    }\n    p.id = Number(p.id);\n  }\n\n  // look up json data\n  if (str.charAt(++i)) {\n    var payload = tryParse(str.substr(i));\n    var isPayloadValid = payload !== false && (p.type === exports.ERROR || isArray(payload));\n    if (isPayloadValid) {\n      p.data = payload;\n    } else {\n      return error('invalid payload');\n    }\n  }\n\n  debug('decoded %s as %j', str, p);\n  return p;\n}\n\nfunction tryParse(str) {\n  try {\n    return JSON.parse(str);\n  } catch(e){\n    return false;\n  }\n}\n\n/**\n * Deallocates a parser's resources\n *\n * @api public\n */\n\nDecoder.prototype.destroy = function() {\n  if (this.reconstructor) {\n    this.reconstructor.finishedReconstruction();\n  }\n};\n\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n * @api private\n */\n\nfunction BinaryReconstructor(packet) {\n  this.reconPack = packet;\n  this.buffers = [];\n}\n\n/**\n * Method to be called when binary data received from connection\n * after a BINARY_EVENT packet.\n *\n * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n * @return {null | Object} returns null if more binary data is expected or\n *   a reconstructed packet object if all buffers have been received.\n * @api private\n */\n\nBinaryReconstructor.prototype.takeBinaryData = function(binData) {\n  this.buffers.push(binData);\n  if (this.buffers.length === this.reconPack.attachments) { // done with buffer list\n    var packet = binary.reconstructPacket(this.reconPack, this.buffers);\n    this.finishedReconstruction();\n    return packet;\n  }\n  return null;\n};\n\n/**\n * Cleans up binary packet reconstruction variables.\n *\n * @api private\n */\n\nBinaryReconstructor.prototype.finishedReconstruction = function() {\n  this.reconPack = null;\n  this.buffers = [];\n};\n\nfunction error(msg) {\n  return {\n    type: exports.ERROR,\n    data: 'parser error: ' + msg\n  };\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/socket.io-parser/index.js\n// module id = 7\n// module chunks = 0","\r\n/**\r\n * Expose `Emitter`.\r\n */\r\n\r\nif (typeof module !== 'undefined') {\r\n  module.exports = Emitter;\r\n}\r\n\r\n/**\r\n * Initialize a new `Emitter`.\r\n *\r\n * @api public\r\n */\r\n\r\nfunction Emitter(obj) {\r\n  if (obj) return mixin(obj);\r\n};\r\n\r\n/**\r\n * Mixin the emitter properties.\r\n *\r\n * @param {Object} obj\r\n * @return {Object}\r\n * @api private\r\n */\r\n\r\nfunction mixin(obj) {\r\n  for (var key in Emitter.prototype) {\r\n    obj[key] = Emitter.prototype[key];\r\n  }\r\n  return obj;\r\n}\r\n\r\n/**\r\n * Listen on the given `event` with `fn`.\r\n *\r\n * @param {String} event\r\n * @param {Function} fn\r\n * @return {Emitter}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.on =\r\nEmitter.prototype.addEventListener = function(event, fn){\r\n  this._callbacks = this._callbacks || {};\r\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\r\n    .push(fn);\r\n  return this;\r\n};\r\n\r\n/**\r\n * Adds an `event` listener that will be invoked a single\r\n * time then automatically removed.\r\n *\r\n * @param {String} event\r\n * @param {Function} fn\r\n * @return {Emitter}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.once = function(event, fn){\r\n  function on() {\r\n    this.off(event, on);\r\n    fn.apply(this, arguments);\r\n  }\r\n\r\n  on.fn = fn;\r\n  this.on(event, on);\r\n  return this;\r\n};\r\n\r\n/**\r\n * Remove the given callback for `event` or all\r\n * registered callbacks.\r\n *\r\n * @param {String} event\r\n * @param {Function} fn\r\n * @return {Emitter}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.off =\r\nEmitter.prototype.removeListener =\r\nEmitter.prototype.removeAllListeners =\r\nEmitter.prototype.removeEventListener = function(event, fn){\r\n  this._callbacks = this._callbacks || {};\r\n\r\n  // all\r\n  if (0 == arguments.length) {\r\n    this._callbacks = {};\r\n    return this;\r\n  }\r\n\r\n  // specific event\r\n  var callbacks = this._callbacks['$' + event];\r\n  if (!callbacks) return this;\r\n\r\n  // remove all handlers\r\n  if (1 == arguments.length) {\r\n    delete this._callbacks['$' + event];\r\n    return this;\r\n  }\r\n\r\n  // remove specific handler\r\n  var cb;\r\n  for (var i = 0; i < callbacks.length; i++) {\r\n    cb = callbacks[i];\r\n    if (cb === fn || cb.fn === fn) {\r\n      callbacks.splice(i, 1);\r\n      break;\r\n    }\r\n  }\r\n  return this;\r\n};\r\n\r\n/**\r\n * Emit `event` with the given args.\r\n *\r\n * @param {String} event\r\n * @param {Mixed} ...\r\n * @return {Emitter}\r\n */\r\n\r\nEmitter.prototype.emit = function(event){\r\n  this._callbacks = this._callbacks || {};\r\n  var args = [].slice.call(arguments, 1)\r\n    , callbacks = this._callbacks['$' + event];\r\n\r\n  if (callbacks) {\r\n    callbacks = callbacks.slice(0);\r\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\r\n      callbacks[i].apply(this, args);\r\n    }\r\n  }\r\n\r\n  return this;\r\n};\r\n\r\n/**\r\n * Return array of callbacks for `event`.\r\n *\r\n * @param {String} event\r\n * @return {Array}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.listeners = function(event){\r\n  this._callbacks = this._callbacks || {};\r\n  return this._callbacks['$' + event] || [];\r\n};\r\n\r\n/**\r\n * Check if this emitter has `event` handlers.\r\n *\r\n * @param {String} event\r\n * @return {Boolean}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.hasListeners = function(event){\r\n  return !! this.listeners(event).length;\r\n};\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/component-emitter/index.js\n// module id = 8\n// module chunks = 0","/*global Blob,File*/\n\n/**\n * Module requirements\n */\n\nvar isArray = require('isarray');\nvar isBuf = require('./is-buffer');\nvar toString = Object.prototype.toString;\nvar withNativeBlob = typeof Blob === 'function' || (typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]');\nvar withNativeFile = typeof File === 'function' || (typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]');\n\n/**\n * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder.\n * Anything with blobs or files should be fed through removeBlobs before coming\n * here.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @api public\n */\n\nexports.deconstructPacket = function(packet) {\n  var buffers = [];\n  var packetData = packet.data;\n  var pack = packet;\n  pack.data = _deconstructPacket(packetData, buffers);\n  pack.attachments = buffers.length; // number of binary 'attachments'\n  return {packet: pack, buffers: buffers};\n};\n\nfunction _deconstructPacket(data, buffers) {\n  if (!data) return data;\n\n  if (isBuf(data)) {\n    var placeholder = { _placeholder: true, num: buffers.length };\n    buffers.push(data);\n    return placeholder;\n  } else if (isArray(data)) {\n    var newData = new Array(data.length);\n    for (var i = 0; i < data.length; i++) {\n      newData[i] = _deconstructPacket(data[i], buffers);\n    }\n    return newData;\n  } else if (typeof data === 'object' && !(data instanceof Date)) {\n    var newData = {};\n    for (var key in data) {\n      newData[key] = _deconstructPacket(data[key], buffers);\n    }\n    return newData;\n  }\n  return data;\n}\n\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @api public\n */\n\nexports.reconstructPacket = function(packet, buffers) {\n  packet.data = _reconstructPacket(packet.data, buffers);\n  packet.attachments = undefined; // no longer useful\n  return packet;\n};\n\nfunction _reconstructPacket(data, buffers) {\n  if (!data) return data;\n\n  if (data && data._placeholder) {\n    return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n  } else if (isArray(data)) {\n    for (var i = 0; i < data.length; i++) {\n      data[i] = _reconstructPacket(data[i], buffers);\n    }\n  } else if (typeof data === 'object') {\n    for (var key in data) {\n      data[key] = _reconstructPacket(data[key], buffers);\n    }\n  }\n\n  return data;\n}\n\n/**\n * Asynchronously removes Blobs or Files from data via\n * FileReader's readAsArrayBuffer method. Used before encoding\n * data as msgpack. Calls callback with the blobless data.\n *\n * @param {Object} data\n * @param {Function} callback\n * @api private\n */\n\nexports.removeBlobs = function(data, callback) {\n  function _removeBlobs(obj, curKey, containingObject) {\n    if (!obj) return obj;\n\n    // convert any blob\n    if ((withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File)) {\n      pendingBlobs++;\n\n      // async filereader\n      var fileReader = new FileReader();\n      fileReader.onload = function() { // this.result == arraybuffer\n        if (containingObject) {\n          containingObject[curKey] = this.result;\n        }\n        else {\n          bloblessData = this.result;\n        }\n\n        // if nothing pending its callback time\n        if(! --pendingBlobs) {\n          callback(bloblessData);\n        }\n      };\n\n      fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer\n    } else if (isArray(obj)) { // handle array\n      for (var i = 0; i < obj.length; i++) {\n        _removeBlobs(obj[i], i, obj);\n      }\n    } else if (typeof obj === 'object' && !isBuf(obj)) { // and object\n      for (var key in obj) {\n        _removeBlobs(obj[key], key, obj);\n      }\n    }\n  }\n\n  var pendingBlobs = 0;\n  var bloblessData = data;\n  _removeBlobs(bloblessData);\n  if (!pendingBlobs) {\n    callback(bloblessData);\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/socket.io-parser/binary.js\n// module id = 9\n// module chunks = 0","var toString = {}.toString;\n\nmodule.exports = Array.isArray || function (arr) {\n  return toString.call(arr) == '[object Array]';\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/isarray/index.js\n// module id = 10\n// module chunks = 0","\nmodule.exports = isBuf;\n\nvar withNativeBuffer = typeof Buffer === 'function' && typeof Buffer.isBuffer === 'function';\nvar withNativeArrayBuffer = typeof ArrayBuffer === 'function';\n\nvar isView = function (obj) {\n  return typeof ArrayBuffer.isView === 'function' ? ArrayBuffer.isView(obj) : (obj.buffer instanceof ArrayBuffer);\n};\n\n/**\n * Returns true if obj is a buffer or an arraybuffer.\n *\n * @api private\n */\n\nfunction isBuf(obj) {\n  return (withNativeBuffer && Buffer.isBuffer(obj)) ||\n          (withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj)));\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/socket.io-parser/is-buffer.js\n// module id = 11\n// module chunks = 0","\n/**\n * Module dependencies.\n */\n\nvar eio = require('engine.io-client');\nvar Socket = require('./socket');\nvar Emitter = require('component-emitter');\nvar parser = require('socket.io-parser');\nvar on = require('./on');\nvar bind = require('component-bind');\nvar debug = require('debug')('socket.io-client:manager');\nvar indexOf = require('indexof');\nvar Backoff = require('backo2');\n\n/**\n * IE6+ hasOwnProperty\n */\n\nvar has = Object.prototype.hasOwnProperty;\n\n/**\n * Module exports\n */\n\nmodule.exports = Manager;\n\n/**\n * `Manager` constructor.\n *\n * @param {String} engine instance or engine uri/opts\n * @param {Object} options\n * @api public\n */\n\nfunction Manager (uri, opts) {\n  if (!(this instanceof Manager)) return new Manager(uri, opts);\n  if (uri && ('object' === typeof uri)) {\n    opts = uri;\n    uri = undefined;\n  }\n  opts = opts || {};\n\n  opts.path = opts.path || '/socket.io';\n  this.nsps = {};\n  this.subs = [];\n  this.opts = opts;\n  this.reconnection(opts.reconnection !== false);\n  this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n  this.reconnectionDelay(opts.reconnectionDelay || 1000);\n  this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n  this.randomizationFactor(opts.randomizationFactor || 0.5);\n  this.backoff = new Backoff({\n    min: this.reconnectionDelay(),\n    max: this.reconnectionDelayMax(),\n    jitter: this.randomizationFactor()\n  });\n  this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n  this.readyState = 'closed';\n  this.uri = uri;\n  this.connecting = [];\n  this.lastPing = null;\n  this.encoding = false;\n  this.packetBuffer = [];\n  var _parser = opts.parser || parser;\n  this.encoder = new _parser.Encoder();\n  this.decoder = new _parser.Decoder();\n  this.autoConnect = opts.autoConnect !== false;\n  if (this.autoConnect) this.open();\n}\n\n/**\n * Propagate given event to sockets and emit on `this`\n *\n * @api private\n */\n\nManager.prototype.emitAll = function () {\n  this.emit.apply(this, arguments);\n  for (var nsp in this.nsps) {\n    if (has.call(this.nsps, nsp)) {\n      this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);\n    }\n  }\n};\n\n/**\n * Update `socket.id` of all sockets\n *\n * @api private\n */\n\nManager.prototype.updateSocketIds = function () {\n  for (var nsp in this.nsps) {\n    if (has.call(this.nsps, nsp)) {\n      this.nsps[nsp].id = this.generateId(nsp);\n    }\n  }\n};\n\n/**\n * generate `socket.id` for the given `nsp`\n *\n * @param {String} nsp\n * @return {String}\n * @api private\n */\n\nManager.prototype.generateId = function (nsp) {\n  return (nsp === '/' ? '' : (nsp + '#')) + this.engine.id;\n};\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Manager.prototype);\n\n/**\n * Sets the `reconnection` config.\n *\n * @param {Boolean} true/false if it should automatically reconnect\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnection = function (v) {\n  if (!arguments.length) return this._reconnection;\n  this._reconnection = !!v;\n  return this;\n};\n\n/**\n * Sets the reconnection attempts config.\n *\n * @param {Number} max reconnection attempts before giving up\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionAttempts = function (v) {\n  if (!arguments.length) return this._reconnectionAttempts;\n  this._reconnectionAttempts = v;\n  return this;\n};\n\n/**\n * Sets the delay between reconnections.\n *\n * @param {Number} delay\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionDelay = function (v) {\n  if (!arguments.length) return this._reconnectionDelay;\n  this._reconnectionDelay = v;\n  this.backoff && this.backoff.setMin(v);\n  return this;\n};\n\nManager.prototype.randomizationFactor = function (v) {\n  if (!arguments.length) return this._randomizationFactor;\n  this._randomizationFactor = v;\n  this.backoff && this.backoff.setJitter(v);\n  return this;\n};\n\n/**\n * Sets the maximum delay between reconnections.\n *\n * @param {Number} delay\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionDelayMax = function (v) {\n  if (!arguments.length) return this._reconnectionDelayMax;\n  this._reconnectionDelayMax = v;\n  this.backoff && this.backoff.setMax(v);\n  return this;\n};\n\n/**\n * Sets the connection timeout. `false` to disable\n *\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.timeout = function (v) {\n  if (!arguments.length) return this._timeout;\n  this._timeout = v;\n  return this;\n};\n\n/**\n * Starts trying to reconnect if reconnection is enabled and we have not\n * started reconnecting yet\n *\n * @api private\n */\n\nManager.prototype.maybeReconnectOnOpen = function () {\n  // Only try to reconnect if it's the first time we're connecting\n  if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {\n    // keeps reconnection from firing twice for the same reconnection loop\n    this.reconnect();\n  }\n};\n\n/**\n * Sets the current transport `socket`.\n *\n * @param {Function} optional, callback\n * @return {Manager} self\n * @api public\n */\n\nManager.prototype.open =\nManager.prototype.connect = function (fn, opts) {\n  debug('readyState %s', this.readyState);\n  if (~this.readyState.indexOf('open')) return this;\n\n  debug('opening %s', this.uri);\n  this.engine = eio(this.uri, this.opts);\n  var socket = this.engine;\n  var self = this;\n  this.readyState = 'opening';\n  this.skipReconnect = false;\n\n  // emit `open`\n  var openSub = on(socket, 'open', function () {\n    self.onopen();\n    fn && fn();\n  });\n\n  // emit `connect_error`\n  var errorSub = on(socket, 'error', function (data) {\n    debug('connect_error');\n    self.cleanup();\n    self.readyState = 'closed';\n    self.emitAll('connect_error', data);\n    if (fn) {\n      var err = new Error('Connection error');\n      err.data = data;\n      fn(err);\n    } else {\n      // Only do this if there is no fn to handle the error\n      self.maybeReconnectOnOpen();\n    }\n  });\n\n  // emit `connect_timeout`\n  if (false !== this._timeout) {\n    var timeout = this._timeout;\n    debug('connect attempt will timeout after %d', timeout);\n\n    // set timer\n    var timer = setTimeout(function () {\n      debug('connect attempt timed out after %d', timeout);\n      openSub.destroy();\n      socket.close();\n      socket.emit('error', 'timeout');\n      self.emitAll('connect_timeout', timeout);\n    }, timeout);\n\n    this.subs.push({\n      destroy: function () {\n        clearTimeout(timer);\n      }\n    });\n  }\n\n  this.subs.push(openSub);\n  this.subs.push(errorSub);\n\n  return this;\n};\n\n/**\n * Called upon transport open.\n *\n * @api private\n */\n\nManager.prototype.onopen = function () {\n  debug('open');\n\n  // clear old subs\n  this.cleanup();\n\n  // mark as open\n  this.readyState = 'open';\n  this.emit('open');\n\n  // add new subs\n  var socket = this.engine;\n  this.subs.push(on(socket, 'data', bind(this, 'ondata')));\n  this.subs.push(on(socket, 'ping', bind(this, 'onping')));\n  this.subs.push(on(socket, 'pong', bind(this, 'onpong')));\n  this.subs.push(on(socket, 'error', bind(this, 'onerror')));\n  this.subs.push(on(socket, 'close', bind(this, 'onclose')));\n  this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));\n};\n\n/**\n * Called upon a ping.\n *\n * @api private\n */\n\nManager.prototype.onping = function () {\n  this.lastPing = new Date();\n  this.emitAll('ping');\n};\n\n/**\n * Called upon a packet.\n *\n * @api private\n */\n\nManager.prototype.onpong = function () {\n  this.emitAll('pong', new Date() - this.lastPing);\n};\n\n/**\n * Called with data.\n *\n * @api private\n */\n\nManager.prototype.ondata = function (data) {\n  this.decoder.add(data);\n};\n\n/**\n * Called when parser fully decodes a packet.\n *\n * @api private\n */\n\nManager.prototype.ondecoded = function (packet) {\n  this.emit('packet', packet);\n};\n\n/**\n * Called upon socket error.\n *\n * @api private\n */\n\nManager.prototype.onerror = function (err) {\n  debug('error', err);\n  this.emitAll('error', err);\n};\n\n/**\n * Creates a new socket for the given `nsp`.\n *\n * @return {Socket}\n * @api public\n */\n\nManager.prototype.socket = function (nsp, opts) {\n  var socket = this.nsps[nsp];\n  if (!socket) {\n    socket = new Socket(this, nsp, opts);\n    this.nsps[nsp] = socket;\n    var self = this;\n    socket.on('connecting', onConnecting);\n    socket.on('connect', function () {\n      socket.id = self.generateId(nsp);\n    });\n\n    if (this.autoConnect) {\n      // manually call here since connecting event is fired before listening\n      onConnecting();\n    }\n  }\n\n  function onConnecting () {\n    if (!~indexOf(self.connecting, socket)) {\n      self.connecting.push(socket);\n    }\n  }\n\n  return socket;\n};\n\n/**\n * Called upon a socket close.\n *\n * @param {Socket} socket\n */\n\nManager.prototype.destroy = function (socket) {\n  var index = indexOf(this.connecting, socket);\n  if (~index) this.connecting.splice(index, 1);\n  if (this.connecting.length) return;\n\n  this.close();\n};\n\n/**\n * Writes a packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nManager.prototype.packet = function (packet) {\n  debug('writing packet %j', packet);\n  var self = this;\n  if (packet.query && packet.type === 0) packet.nsp += '?' + packet.query;\n\n  if (!self.encoding) {\n    // encode, then write to engine with result\n    self.encoding = true;\n    this.encoder.encode(packet, function (encodedPackets) {\n      for (var i = 0; i < encodedPackets.length; i++) {\n        self.engine.write(encodedPackets[i], packet.options);\n      }\n      self.encoding = false;\n      self.processPacketQueue();\n    });\n  } else { // add packet to the queue\n    self.packetBuffer.push(packet);\n  }\n};\n\n/**\n * If packet buffer is non-empty, begins encoding the\n * next packet in line.\n *\n * @api private\n */\n\nManager.prototype.processPacketQueue = function () {\n  if (this.packetBuffer.length > 0 && !this.encoding) {\n    var pack = this.packetBuffer.shift();\n    this.packet(pack);\n  }\n};\n\n/**\n * Clean up transport subscriptions and packet buffer.\n *\n * @api private\n */\n\nManager.prototype.cleanup = function () {\n  debug('cleanup');\n\n  var subsLength = this.subs.length;\n  for (var i = 0; i < subsLength; i++) {\n    var sub = this.subs.shift();\n    sub.destroy();\n  }\n\n  this.packetBuffer = [];\n  this.encoding = false;\n  this.lastPing = null;\n\n  this.decoder.destroy();\n};\n\n/**\n * Close the current socket.\n *\n * @api private\n */\n\nManager.prototype.close =\nManager.prototype.disconnect = function () {\n  debug('disconnect');\n  this.skipReconnect = true;\n  this.reconnecting = false;\n  if ('opening' === this.readyState) {\n    // `onclose` will not fire because\n    // an open event never happened\n    this.cleanup();\n  }\n  this.backoff.reset();\n  this.readyState = 'closed';\n  if (this.engine) this.engine.close();\n};\n\n/**\n * Called upon engine close.\n *\n * @api private\n */\n\nManager.prototype.onclose = function (reason) {\n  debug('onclose');\n\n  this.cleanup();\n  this.backoff.reset();\n  this.readyState = 'closed';\n  this.emit('close', reason);\n\n  if (this._reconnection && !this.skipReconnect) {\n    this.reconnect();\n  }\n};\n\n/**\n * Attempt a reconnection.\n *\n * @api private\n */\n\nManager.prototype.reconnect = function () {\n  if (this.reconnecting || this.skipReconnect) return this;\n\n  var self = this;\n\n  if (this.backoff.attempts >= this._reconnectionAttempts) {\n    debug('reconnect failed');\n    this.backoff.reset();\n    this.emitAll('reconnect_failed');\n    this.reconnecting = false;\n  } else {\n    var delay = this.backoff.duration();\n    debug('will wait %dms before reconnect attempt', delay);\n\n    this.reconnecting = true;\n    var timer = setTimeout(function () {\n      if (self.skipReconnect) return;\n\n      debug('attempting reconnect');\n      self.emitAll('reconnect_attempt', self.backoff.attempts);\n      self.emitAll('reconnecting', self.backoff.attempts);\n\n      // check again for the case socket closed in above events\n      if (self.skipReconnect) return;\n\n      self.open(function (err) {\n        if (err) {\n          debug('reconnect attempt error');\n          self.reconnecting = false;\n          self.reconnect();\n          self.emitAll('reconnect_error', err.data);\n        } else {\n          debug('reconnect success');\n          self.onreconnect();\n        }\n      });\n    }, delay);\n\n    this.subs.push({\n      destroy: function () {\n        clearTimeout(timer);\n      }\n    });\n  }\n};\n\n/**\n * Called upon successful reconnect.\n *\n * @api private\n */\n\nManager.prototype.onreconnect = function () {\n  var attempt = this.backoff.attempts;\n  this.reconnecting = false;\n  this.backoff.reset();\n  this.updateSocketIds();\n  this.emitAll('reconnect', attempt);\n};\n\n\n\n// WEBPACK FOOTER //\n// ./lib/manager.js","\nmodule.exports = require('./socket');\n\n/**\n * Exports parser\n *\n * @api public\n *\n */\nmodule.exports.parser = require('engine.io-parser');\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/index.js\n// module id = 13\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar transports = require('./transports/index');\nvar Emitter = require('component-emitter');\nvar debug = require('debug')('engine.io-client:socket');\nvar index = require('indexof');\nvar parser = require('engine.io-parser');\nvar parseuri = require('parseuri');\nvar parseqs = require('parseqs');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Socket;\n\n/**\n * Socket constructor.\n *\n * @param {String|Object} uri or options\n * @param {Object} options\n * @api public\n */\n\nfunction Socket (uri, opts) {\n  if (!(this instanceof Socket)) return new Socket(uri, opts);\n\n  opts = opts || {};\n\n  if (uri && 'object' === typeof uri) {\n    opts = uri;\n    uri = null;\n  }\n\n  if (uri) {\n    uri = parseuri(uri);\n    opts.hostname = uri.host;\n    opts.secure = uri.protocol === 'https' || uri.protocol === 'wss';\n    opts.port = uri.port;\n    if (uri.query) opts.query = uri.query;\n  } else if (opts.host) {\n    opts.hostname = parseuri(opts.host).host;\n  }\n\n  this.secure = null != opts.secure ? opts.secure\n    : (typeof location !== 'undefined' && 'https:' === location.protocol);\n\n  if (opts.hostname && !opts.port) {\n    // if no port is specified manually, use the protocol default\n    opts.port = this.secure ? '443' : '80';\n  }\n\n  this.agent = opts.agent || false;\n  this.hostname = opts.hostname ||\n    (typeof location !== 'undefined' ? location.hostname : 'localhost');\n  this.port = opts.port || (typeof location !== 'undefined' && location.port\n      ? location.port\n      : (this.secure ? 443 : 80));\n  this.query = opts.query || {};\n  if ('string' === typeof this.query) this.query = parseqs.decode(this.query);\n  this.upgrade = false !== opts.upgrade;\n  this.path = (opts.path || '/engine.io').replace(/\\/$/, '') + '/';\n  this.forceJSONP = !!opts.forceJSONP;\n  this.jsonp = false !== opts.jsonp;\n  this.forceBase64 = !!opts.forceBase64;\n  this.enablesXDR = !!opts.enablesXDR;\n  this.timestampParam = opts.timestampParam || 't';\n  this.timestampRequests = opts.timestampRequests;\n  this.transports = opts.transports || ['polling', 'websocket'];\n  this.transportOptions = opts.transportOptions || {};\n  this.readyState = '';\n  this.writeBuffer = [];\n  this.prevBufferLen = 0;\n  this.policyPort = opts.policyPort || 843;\n  this.rememberUpgrade = opts.rememberUpgrade || false;\n  this.binaryType = null;\n  this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;\n  this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || {}) : false;\n\n  if (true === this.perMessageDeflate) this.perMessageDeflate = {};\n  if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) {\n    this.perMessageDeflate.threshold = 1024;\n  }\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx || null;\n  this.key = opts.key || null;\n  this.passphrase = opts.passphrase || null;\n  this.cert = opts.cert || null;\n  this.ca = opts.ca || null;\n  this.ciphers = opts.ciphers || null;\n  this.rejectUnauthorized = opts.rejectUnauthorized === undefined ? true : opts.rejectUnauthorized;\n  this.forceNode = !!opts.forceNode;\n\n  // detect ReactNative environment\n  this.isReactNative = (typeof navigator !== 'undefined' && typeof navigator.product === 'string' && navigator.product.toLowerCase() === 'reactnative');\n\n  // other options for Node.js or ReactNative client\n  if (typeof self === 'undefined' || this.isReactNative) {\n    if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) {\n      this.extraHeaders = opts.extraHeaders;\n    }\n\n    if (opts.localAddress) {\n      this.localAddress = opts.localAddress;\n    }\n  }\n\n  // set on handshake\n  this.id = null;\n  this.upgrades = null;\n  this.pingInterval = null;\n  this.pingTimeout = null;\n\n  // set on heartbeat\n  this.pingIntervalTimer = null;\n  this.pingTimeoutTimer = null;\n\n  this.open();\n}\n\nSocket.priorWebsocketSuccess = false;\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Socket.prototype);\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nSocket.protocol = parser.protocol; // this is an int\n\n/**\n * Expose deps for legacy compatibility\n * and standalone browser access.\n */\n\nSocket.Socket = Socket;\nSocket.Transport = require('./transport');\nSocket.transports = require('./transports/index');\nSocket.parser = require('engine.io-parser');\n\n/**\n * Creates transport of the given type.\n *\n * @param {String} transport name\n * @return {Transport}\n * @api private\n */\n\nSocket.prototype.createTransport = function (name) {\n  debug('creating transport \"%s\"', name);\n  var query = clone(this.query);\n\n  // append engine.io protocol identifier\n  query.EIO = parser.protocol;\n\n  // transport name\n  query.transport = name;\n\n  // per-transport options\n  var options = this.transportOptions[name] || {};\n\n  // session id if we already have one\n  if (this.id) query.sid = this.id;\n\n  var transport = new transports[name]({\n    query: query,\n    socket: this,\n    agent: options.agent || this.agent,\n    hostname: options.hostname || this.hostname,\n    port: options.port || this.port,\n    secure: options.secure || this.secure,\n    path: options.path || this.path,\n    forceJSONP: options.forceJSONP || this.forceJSONP,\n    jsonp: options.jsonp || this.jsonp,\n    forceBase64: options.forceBase64 || this.forceBase64,\n    enablesXDR: options.enablesXDR || this.enablesXDR,\n    timestampRequests: options.timestampRequests || this.timestampRequests,\n    timestampParam: options.timestampParam || this.timestampParam,\n    policyPort: options.policyPort || this.policyPort,\n    pfx: options.pfx || this.pfx,\n    key: options.key || this.key,\n    passphrase: options.passphrase || this.passphrase,\n    cert: options.cert || this.cert,\n    ca: options.ca || this.ca,\n    ciphers: options.ciphers || this.ciphers,\n    rejectUnauthorized: options.rejectUnauthorized || this.rejectUnauthorized,\n    perMessageDeflate: options.perMessageDeflate || this.perMessageDeflate,\n    extraHeaders: options.extraHeaders || this.extraHeaders,\n    forceNode: options.forceNode || this.forceNode,\n    localAddress: options.localAddress || this.localAddress,\n    requestTimeout: options.requestTimeout || this.requestTimeout,\n    protocols: options.protocols || void (0),\n    isReactNative: this.isReactNative\n  });\n\n  return transport;\n};\n\nfunction clone (obj) {\n  var o = {};\n  for (var i in obj) {\n    if (obj.hasOwnProperty(i)) {\n      o[i] = obj[i];\n    }\n  }\n  return o;\n}\n\n/**\n * Initializes transport to use and starts probe.\n *\n * @api private\n */\nSocket.prototype.open = function () {\n  var transport;\n  if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') !== -1) {\n    transport = 'websocket';\n  } else if (0 === this.transports.length) {\n    // Emit error on next tick so it can be listened to\n    var self = this;\n    setTimeout(function () {\n      self.emit('error', 'No transports available');\n    }, 0);\n    return;\n  } else {\n    transport = this.transports[0];\n  }\n  this.readyState = 'opening';\n\n  // Retry with the next transport if the transport is disabled (jsonp: false)\n  try {\n    transport = this.createTransport(transport);\n  } catch (e) {\n    this.transports.shift();\n    this.open();\n    return;\n  }\n\n  transport.open();\n  this.setTransport(transport);\n};\n\n/**\n * Sets the current transport. Disables the existing one (if any).\n *\n * @api private\n */\n\nSocket.prototype.setTransport = function (transport) {\n  debug('setting transport %s', transport.name);\n  var self = this;\n\n  if (this.transport) {\n    debug('clearing existing transport %s', this.transport.name);\n    this.transport.removeAllListeners();\n  }\n\n  // set up transport\n  this.transport = transport;\n\n  // set up transport listeners\n  transport\n  .on('drain', function () {\n    self.onDrain();\n  })\n  .on('packet', function (packet) {\n    self.onPacket(packet);\n  })\n  .on('error', function (e) {\n    self.onError(e);\n  })\n  .on('close', function () {\n    self.onClose('transport close');\n  });\n};\n\n/**\n * Probes a transport.\n *\n * @param {String} transport name\n * @api private\n */\n\nSocket.prototype.probe = function (name) {\n  debug('probing transport \"%s\"', name);\n  var transport = this.createTransport(name, { probe: 1 });\n  var failed = false;\n  var self = this;\n\n  Socket.priorWebsocketSuccess = false;\n\n  function onTransportOpen () {\n    if (self.onlyBinaryUpgrades) {\n      var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;\n      failed = failed || upgradeLosesBinary;\n    }\n    if (failed) return;\n\n    debug('probe transport \"%s\" opened', name);\n    transport.send([{ type: 'ping', data: 'probe' }]);\n    transport.once('packet', function (msg) {\n      if (failed) return;\n      if ('pong' === msg.type && 'probe' === msg.data) {\n        debug('probe transport \"%s\" pong', name);\n        self.upgrading = true;\n        self.emit('upgrading', transport);\n        if (!transport) return;\n        Socket.priorWebsocketSuccess = 'websocket' === transport.name;\n\n        debug('pausing current transport \"%s\"', self.transport.name);\n        self.transport.pause(function () {\n          if (failed) return;\n          if ('closed' === self.readyState) return;\n          debug('changing transport and sending upgrade packet');\n\n          cleanup();\n\n          self.setTransport(transport);\n          transport.send([{ type: 'upgrade' }]);\n          self.emit('upgrade', transport);\n          transport = null;\n          self.upgrading = false;\n          self.flush();\n        });\n      } else {\n        debug('probe transport \"%s\" failed', name);\n        var err = new Error('probe error');\n        err.transport = transport.name;\n        self.emit('upgradeError', err);\n      }\n    });\n  }\n\n  function freezeTransport () {\n    if (failed) return;\n\n    // Any callback called by transport should be ignored since now\n    failed = true;\n\n    cleanup();\n\n    transport.close();\n    transport = null;\n  }\n\n  // Handle any error that happens while probing\n  function onerror (err) {\n    var error = new Error('probe error: ' + err);\n    error.transport = transport.name;\n\n    freezeTransport();\n\n    debug('probe transport \"%s\" failed because of error: %s', name, err);\n\n    self.emit('upgradeError', error);\n  }\n\n  function onTransportClose () {\n    onerror('transport closed');\n  }\n\n  // When the socket is closed while we're probing\n  function onclose () {\n    onerror('socket closed');\n  }\n\n  // When the socket is upgraded while we're probing\n  function onupgrade (to) {\n    if (transport && to.name !== transport.name) {\n      debug('\"%s\" works - aborting \"%s\"', to.name, transport.name);\n      freezeTransport();\n    }\n  }\n\n  // Remove all listeners on the transport and on self\n  function cleanup () {\n    transport.removeListener('open', onTransportOpen);\n    transport.removeListener('error', onerror);\n    transport.removeListener('close', onTransportClose);\n    self.removeListener('close', onclose);\n    self.removeListener('upgrading', onupgrade);\n  }\n\n  transport.once('open', onTransportOpen);\n  transport.once('error', onerror);\n  transport.once('close', onTransportClose);\n\n  this.once('close', onclose);\n  this.once('upgrading', onupgrade);\n\n  transport.open();\n};\n\n/**\n * Called when connection is deemed open.\n *\n * @api public\n */\n\nSocket.prototype.onOpen = function () {\n  debug('socket open');\n  this.readyState = 'open';\n  Socket.priorWebsocketSuccess = 'websocket' === this.transport.name;\n  this.emit('open');\n  this.flush();\n\n  // we check for `readyState` in case an `open`\n  // listener already closed the socket\n  if ('open' === this.readyState && this.upgrade && this.transport.pause) {\n    debug('starting upgrade probes');\n    for (var i = 0, l = this.upgrades.length; i < l; i++) {\n      this.probe(this.upgrades[i]);\n    }\n  }\n};\n\n/**\n * Handles a packet.\n *\n * @api private\n */\n\nSocket.prototype.onPacket = function (packet) {\n  if ('opening' === this.readyState || 'open' === this.readyState ||\n      'closing' === this.readyState) {\n    debug('socket receive: type \"%s\", data \"%s\"', packet.type, packet.data);\n\n    this.emit('packet', packet);\n\n    // Socket is live - any packet counts\n    this.emit('heartbeat');\n\n    switch (packet.type) {\n      case 'open':\n        this.onHandshake(JSON.parse(packet.data));\n        break;\n\n      case 'pong':\n        this.setPing();\n        this.emit('pong');\n        break;\n\n      case 'error':\n        var err = new Error('server error');\n        err.code = packet.data;\n        this.onError(err);\n        break;\n\n      case 'message':\n        this.emit('data', packet.data);\n        this.emit('message', packet.data);\n        break;\n    }\n  } else {\n    debug('packet received with socket readyState \"%s\"', this.readyState);\n  }\n};\n\n/**\n * Called upon handshake completion.\n *\n * @param {Object} handshake obj\n * @api private\n */\n\nSocket.prototype.onHandshake = function (data) {\n  this.emit('handshake', data);\n  this.id = data.sid;\n  this.transport.query.sid = data.sid;\n  this.upgrades = this.filterUpgrades(data.upgrades);\n  this.pingInterval = data.pingInterval;\n  this.pingTimeout = data.pingTimeout;\n  this.onOpen();\n  // In case open handler closes socket\n  if ('closed' === this.readyState) return;\n  this.setPing();\n\n  // Prolong liveness of socket on heartbeat\n  this.removeListener('heartbeat', this.onHeartbeat);\n  this.on('heartbeat', this.onHeartbeat);\n};\n\n/**\n * Resets ping timeout.\n *\n * @api private\n */\n\nSocket.prototype.onHeartbeat = function (timeout) {\n  clearTimeout(this.pingTimeoutTimer);\n  var self = this;\n  self.pingTimeoutTimer = setTimeout(function () {\n    if ('closed' === self.readyState) return;\n    self.onClose('ping timeout');\n  }, timeout || (self.pingInterval + self.pingTimeout));\n};\n\n/**\n * Pings server every `this.pingInterval` and expects response\n * within `this.pingTimeout` or closes connection.\n *\n * @api private\n */\n\nSocket.prototype.setPing = function () {\n  var self = this;\n  clearTimeout(self.pingIntervalTimer);\n  self.pingIntervalTimer = setTimeout(function () {\n    debug('writing ping packet - expecting pong within %sms', self.pingTimeout);\n    self.ping();\n    self.onHeartbeat(self.pingTimeout);\n  }, self.pingInterval);\n};\n\n/**\n* Sends a ping packet.\n*\n* @api private\n*/\n\nSocket.prototype.ping = function () {\n  var self = this;\n  this.sendPacket('ping', function () {\n    self.emit('ping');\n  });\n};\n\n/**\n * Called on `drain` event\n *\n * @api private\n */\n\nSocket.prototype.onDrain = function () {\n  this.writeBuffer.splice(0, this.prevBufferLen);\n\n  // setting prevBufferLen = 0 is very important\n  // for example, when upgrading, upgrade packet is sent over,\n  // and a nonzero prevBufferLen could cause problems on `drain`\n  this.prevBufferLen = 0;\n\n  if (0 === this.writeBuffer.length) {\n    this.emit('drain');\n  } else {\n    this.flush();\n  }\n};\n\n/**\n * Flush write buffers.\n *\n * @api private\n */\n\nSocket.prototype.flush = function () {\n  if ('closed' !== this.readyState && this.transport.writable &&\n    !this.upgrading && this.writeBuffer.length) {\n    debug('flushing %d packets in socket', this.writeBuffer.length);\n    this.transport.send(this.writeBuffer);\n    // keep track of current length of writeBuffer\n    // splice writeBuffer and callbackBuffer on `drain`\n    this.prevBufferLen = this.writeBuffer.length;\n    this.emit('flush');\n  }\n};\n\n/**\n * Sends a message.\n *\n * @param {String} message.\n * @param {Function} callback function.\n * @param {Object} options.\n * @return {Socket} for chaining.\n * @api public\n */\n\nSocket.prototype.write =\nSocket.prototype.send = function (msg, options, fn) {\n  this.sendPacket('message', msg, options, fn);\n  return this;\n};\n\n/**\n * Sends a packet.\n *\n * @param {String} packet type.\n * @param {String} data.\n * @param {Object} options.\n * @param {Function} callback function.\n * @api private\n */\n\nSocket.prototype.sendPacket = function (type, data, options, fn) {\n  if ('function' === typeof data) {\n    fn = data;\n    data = undefined;\n  }\n\n  if ('function' === typeof options) {\n    fn = options;\n    options = null;\n  }\n\n  if ('closing' === this.readyState || 'closed' === this.readyState) {\n    return;\n  }\n\n  options = options || {};\n  options.compress = false !== options.compress;\n\n  var packet = {\n    type: type,\n    data: data,\n    options: options\n  };\n  this.emit('packetCreate', packet);\n  this.writeBuffer.push(packet);\n  if (fn) this.once('flush', fn);\n  this.flush();\n};\n\n/**\n * Closes the connection.\n *\n * @api private\n */\n\nSocket.prototype.close = function () {\n  if ('opening' === this.readyState || 'open' === this.readyState) {\n    this.readyState = 'closing';\n\n    var self = this;\n\n    if (this.writeBuffer.length) {\n      this.once('drain', function () {\n        if (this.upgrading) {\n          waitForUpgrade();\n        } else {\n          close();\n        }\n      });\n    } else if (this.upgrading) {\n      waitForUpgrade();\n    } else {\n      close();\n    }\n  }\n\n  function close () {\n    self.onClose('forced close');\n    debug('socket closing - telling transport to close');\n    self.transport.close();\n  }\n\n  function cleanupAndClose () {\n    self.removeListener('upgrade', cleanupAndClose);\n    self.removeListener('upgradeError', cleanupAndClose);\n    close();\n  }\n\n  function waitForUpgrade () {\n    // wait for upgrade to finish since we can't send packets while pausing a transport\n    self.once('upgrade', cleanupAndClose);\n    self.once('upgradeError', cleanupAndClose);\n  }\n\n  return this;\n};\n\n/**\n * Called upon transport error\n *\n * @api private\n */\n\nSocket.prototype.onError = function (err) {\n  debug('socket error %j', err);\n  Socket.priorWebsocketSuccess = false;\n  this.emit('error', err);\n  this.onClose('transport error', err);\n};\n\n/**\n * Called upon transport close.\n *\n * @api private\n */\n\nSocket.prototype.onClose = function (reason, desc) {\n  if ('opening' === this.readyState || 'open' === this.readyState || 'closing' === this.readyState) {\n    debug('socket close with reason: \"%s\"', reason);\n    var self = this;\n\n    // clear timers\n    clearTimeout(this.pingIntervalTimer);\n    clearTimeout(this.pingTimeoutTimer);\n\n    // stop event from firing again for transport\n    this.transport.removeAllListeners('close');\n\n    // ensure transport won't stay open\n    this.transport.close();\n\n    // ignore further transport communication\n    this.transport.removeAllListeners();\n\n    // set ready state\n    this.readyState = 'closed';\n\n    // clear session id\n    this.id = null;\n\n    // emit close event\n    this.emit('close', reason, desc);\n\n    // clean buffers after, so users can still\n    // grab the buffers on `close` event\n    self.writeBuffer = [];\n    self.prevBufferLen = 0;\n  }\n};\n\n/**\n * Filters upgrades, returning only those matching client transports.\n *\n * @param {Array} server upgrades\n * @api private\n *\n */\n\nSocket.prototype.filterUpgrades = function (upgrades) {\n  var filteredUpgrades = [];\n  for (var i = 0, j = upgrades.length; i < j; i++) {\n    if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);\n  }\n  return filteredUpgrades;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/socket.js\n// module id = 14\n// module chunks = 0","/**\n * Module dependencies\n */\n\nvar XMLHttpRequest = require('xmlhttprequest-ssl');\nvar XHR = require('./polling-xhr');\nvar JSONP = require('./polling-jsonp');\nvar websocket = require('./websocket');\n\n/**\n * Export transports.\n */\n\nexports.polling = polling;\nexports.websocket = websocket;\n\n/**\n * Polling transport polymorphic constructor.\n * Decides on xhr vs jsonp based on feature detection.\n *\n * @api private\n */\n\nfunction polling (opts) {\n  var xhr;\n  var xd = false;\n  var xs = false;\n  var jsonp = false !== opts.jsonp;\n\n  if (typeof location !== 'undefined') {\n    var isSSL = 'https:' === location.protocol;\n    var port = location.port;\n\n    // some user agents have empty `location.port`\n    if (!port) {\n      port = isSSL ? 443 : 80;\n    }\n\n    xd = opts.hostname !== location.hostname || port !== opts.port;\n    xs = opts.secure !== isSSL;\n  }\n\n  opts.xdomain = xd;\n  opts.xscheme = xs;\n  xhr = new XMLHttpRequest(opts);\n\n  if ('open' in xhr && !opts.forceJSONP) {\n    return new XHR(opts);\n  } else {\n    if (!jsonp) throw new Error('JSONP disabled');\n    return new JSONP(opts);\n  }\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/index.js\n// module id = 15\n// module chunks = 0","// browser shim for xmlhttprequest module\n\nvar hasCORS = require('has-cors');\n\nmodule.exports = function (opts) {\n  var xdomain = opts.xdomain;\n\n  // scheme must be same when usign XDomainRequest\n  // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx\n  var xscheme = opts.xscheme;\n\n  // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.\n  // https://github.com/Automattic/engine.io-client/pull/217\n  var enablesXDR = opts.enablesXDR;\n\n  // XMLHttpRequest can be disabled on IE\n  try {\n    if ('undefined' !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n      return new XMLHttpRequest();\n    }\n  } catch (e) { }\n\n  // Use XDomainRequest for IE8 if enablesXDR is true\n  // because loading bar keeps flashing when using jsonp-polling\n  // https://github.com/yujiosaka/socke.io-ie8-loading-example\n  try {\n    if ('undefined' !== typeof XDomainRequest && !xscheme && enablesXDR) {\n      return new XDomainRequest();\n    }\n  } catch (e) { }\n\n  if (!xdomain) {\n    try {\n      return new self[['Active'].concat('Object').join('X')]('Microsoft.XMLHTTP');\n    } catch (e) { }\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/xmlhttprequest.js\n// module id = 16\n// module chunks = 0","\n/**\n * Module exports.\n *\n * Logic borrowed from Modernizr:\n *\n *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js\n */\n\ntry {\n  module.exports = typeof XMLHttpRequest !== 'undefined' &&\n    'withCredentials' in new XMLHttpRequest();\n} catch (err) {\n  // if XMLHttp support is disabled in IE then it will throw\n  // when trying to create\n  module.exports = false;\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/has-cors/index.js\n// module id = 17\n// module chunks = 0","/* global attachEvent */\n\n/**\n * Module requirements.\n */\n\nvar XMLHttpRequest = require('xmlhttprequest-ssl');\nvar Polling = require('./polling');\nvar Emitter = require('component-emitter');\nvar inherit = require('component-inherit');\nvar debug = require('debug')('engine.io-client:polling-xhr');\n\n/**\n * Module exports.\n */\n\nmodule.exports = XHR;\nmodule.exports.Request = Request;\n\n/**\n * Empty function\n */\n\nfunction empty () {}\n\n/**\n * XHR Polling constructor.\n *\n * @param {Object} opts\n * @api public\n */\n\nfunction XHR (opts) {\n  Polling.call(this, opts);\n  this.requestTimeout = opts.requestTimeout;\n  this.extraHeaders = opts.extraHeaders;\n\n  if (typeof location !== 'undefined') {\n    var isSSL = 'https:' === location.protocol;\n    var port = location.port;\n\n    // some user agents have empty `location.port`\n    if (!port) {\n      port = isSSL ? 443 : 80;\n    }\n\n    this.xd = (typeof location !== 'undefined' && opts.hostname !== location.hostname) ||\n      port !== opts.port;\n    this.xs = opts.secure !== isSSL;\n  }\n}\n\n/**\n * Inherits from Polling.\n */\n\ninherit(XHR, Polling);\n\n/**\n * XHR supports binary\n */\n\nXHR.prototype.supportsBinary = true;\n\n/**\n * Creates a request.\n *\n * @param {String} method\n * @api private\n */\n\nXHR.prototype.request = function (opts) {\n  opts = opts || {};\n  opts.uri = this.uri();\n  opts.xd = this.xd;\n  opts.xs = this.xs;\n  opts.agent = this.agent || false;\n  opts.supportsBinary = this.supportsBinary;\n  opts.enablesXDR = this.enablesXDR;\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n  opts.requestTimeout = this.requestTimeout;\n\n  // other options for Node.js client\n  opts.extraHeaders = this.extraHeaders;\n\n  return new Request(opts);\n};\n\n/**\n * Sends data.\n *\n * @param {String} data to send.\n * @param {Function} called upon flush.\n * @api private\n */\n\nXHR.prototype.doWrite = function (data, fn) {\n  var isBinary = typeof data !== 'string' && data !== undefined;\n  var req = this.request({ method: 'POST', data: data, isBinary: isBinary });\n  var self = this;\n  req.on('success', fn);\n  req.on('error', function (err) {\n    self.onError('xhr post error', err);\n  });\n  this.sendXhr = req;\n};\n\n/**\n * Starts a poll cycle.\n *\n * @api private\n */\n\nXHR.prototype.doPoll = function () {\n  debug('xhr poll');\n  var req = this.request();\n  var self = this;\n  req.on('data', function (data) {\n    self.onData(data);\n  });\n  req.on('error', function (err) {\n    self.onError('xhr poll error', err);\n  });\n  this.pollXhr = req;\n};\n\n/**\n * Request constructor\n *\n * @param {Object} options\n * @api public\n */\n\nfunction Request (opts) {\n  this.method = opts.method || 'GET';\n  this.uri = opts.uri;\n  this.xd = !!opts.xd;\n  this.xs = !!opts.xs;\n  this.async = false !== opts.async;\n  this.data = undefined !== opts.data ? opts.data : null;\n  this.agent = opts.agent;\n  this.isBinary = opts.isBinary;\n  this.supportsBinary = opts.supportsBinary;\n  this.enablesXDR = opts.enablesXDR;\n  this.requestTimeout = opts.requestTimeout;\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx;\n  this.key = opts.key;\n  this.passphrase = opts.passphrase;\n  this.cert = opts.cert;\n  this.ca = opts.ca;\n  this.ciphers = opts.ciphers;\n  this.rejectUnauthorized = opts.rejectUnauthorized;\n\n  // other options for Node.js client\n  this.extraHeaders = opts.extraHeaders;\n\n  this.create();\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Request.prototype);\n\n/**\n * Creates the XHR object and sends the request.\n *\n * @api private\n */\n\nRequest.prototype.create = function () {\n  var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n\n  var xhr = this.xhr = new XMLHttpRequest(opts);\n  var self = this;\n\n  try {\n    debug('xhr open %s: %s', this.method, this.uri);\n    xhr.open(this.method, this.uri, this.async);\n    try {\n      if (this.extraHeaders) {\n        xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n        for (var i in this.extraHeaders) {\n          if (this.extraHeaders.hasOwnProperty(i)) {\n            xhr.setRequestHeader(i, this.extraHeaders[i]);\n          }\n        }\n      }\n    } catch (e) {}\n\n    if ('POST' === this.method) {\n      try {\n        if (this.isBinary) {\n          xhr.setRequestHeader('Content-type', 'application/octet-stream');\n        } else {\n          xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');\n        }\n      } catch (e) {}\n    }\n\n    try {\n      xhr.setRequestHeader('Accept', '*/*');\n    } catch (e) {}\n\n    // ie6 check\n    if ('withCredentials' in xhr) {\n      xhr.withCredentials = true;\n    }\n\n    if (this.requestTimeout) {\n      xhr.timeout = this.requestTimeout;\n    }\n\n    if (this.hasXDR()) {\n      xhr.onload = function () {\n        self.onLoad();\n      };\n      xhr.onerror = function () {\n        self.onError(xhr.responseText);\n      };\n    } else {\n      xhr.onreadystatechange = function () {\n        if (xhr.readyState === 2) {\n          try {\n            var contentType = xhr.getResponseHeader('Content-Type');\n            if (self.supportsBinary && contentType === 'application/octet-stream') {\n              xhr.responseType = 'arraybuffer';\n            }\n          } catch (e) {}\n        }\n        if (4 !== xhr.readyState) return;\n        if (200 === xhr.status || 1223 === xhr.status) {\n          self.onLoad();\n        } else {\n          // make sure the `error` event handler that's user-set\n          // does not throw in the same tick and gets caught here\n          setTimeout(function () {\n            self.onError(xhr.status);\n          }, 0);\n        }\n      };\n    }\n\n    debug('xhr data %s', this.data);\n    xhr.send(this.data);\n  } catch (e) {\n    // Need to defer since .create() is called directly fhrom the constructor\n    // and thus the 'error' event can only be only bound *after* this exception\n    // occurs.  Therefore, also, we cannot throw here at all.\n    setTimeout(function () {\n      self.onError(e);\n    }, 0);\n    return;\n  }\n\n  if (typeof document !== 'undefined') {\n    this.index = Request.requestsCount++;\n    Request.requests[this.index] = this;\n  }\n};\n\n/**\n * Called upon successful response.\n *\n * @api private\n */\n\nRequest.prototype.onSuccess = function () {\n  this.emit('success');\n  this.cleanup();\n};\n\n/**\n * Called if we have data.\n *\n * @api private\n */\n\nRequest.prototype.onData = function (data) {\n  this.emit('data', data);\n  this.onSuccess();\n};\n\n/**\n * Called upon error.\n *\n * @api private\n */\n\nRequest.prototype.onError = function (err) {\n  this.emit('error', err);\n  this.cleanup(true);\n};\n\n/**\n * Cleans up house.\n *\n * @api private\n */\n\nRequest.prototype.cleanup = function (fromError) {\n  if ('undefined' === typeof this.xhr || null === this.xhr) {\n    return;\n  }\n  // xmlhttprequest\n  if (this.hasXDR()) {\n    this.xhr.onload = this.xhr.onerror = empty;\n  } else {\n    this.xhr.onreadystatechange = empty;\n  }\n\n  if (fromError) {\n    try {\n      this.xhr.abort();\n    } catch (e) {}\n  }\n\n  if (typeof document !== 'undefined') {\n    delete Request.requests[this.index];\n  }\n\n  this.xhr = null;\n};\n\n/**\n * Called upon load.\n *\n * @api private\n */\n\nRequest.prototype.onLoad = function () {\n  var data;\n  try {\n    var contentType;\n    try {\n      contentType = this.xhr.getResponseHeader('Content-Type');\n    } catch (e) {}\n    if (contentType === 'application/octet-stream') {\n      data = this.xhr.response || this.xhr.responseText;\n    } else {\n      data = this.xhr.responseText;\n    }\n  } catch (e) {\n    this.onError(e);\n  }\n  if (null != data) {\n    this.onData(data);\n  }\n};\n\n/**\n * Check if it has XDomainRequest.\n *\n * @api private\n */\n\nRequest.prototype.hasXDR = function () {\n  return typeof XDomainRequest !== 'undefined' && !this.xs && this.enablesXDR;\n};\n\n/**\n * Aborts the request.\n *\n * @api public\n */\n\nRequest.prototype.abort = function () {\n  this.cleanup();\n};\n\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\n\nRequest.requestsCount = 0;\nRequest.requests = {};\n\nif (typeof document !== 'undefined') {\n  if (typeof attachEvent === 'function') {\n    attachEvent('onunload', unloadHandler);\n  } else if (typeof addEventListener === 'function') {\n    var terminationEvent = 'onpagehide' in self ? 'pagehide' : 'unload';\n    addEventListener(terminationEvent, unloadHandler, false);\n  }\n}\n\nfunction unloadHandler () {\n  for (var i in Request.requests) {\n    if (Request.requests.hasOwnProperty(i)) {\n      Request.requests[i].abort();\n    }\n  }\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/polling-xhr.js\n// module id = 18\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar Transport = require('../transport');\nvar parseqs = require('parseqs');\nvar parser = require('engine.io-parser');\nvar inherit = require('component-inherit');\nvar yeast = require('yeast');\nvar debug = require('debug')('engine.io-client:polling');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Polling;\n\n/**\n * Is XHR2 supported?\n */\n\nvar hasXHR2 = (function () {\n  var XMLHttpRequest = require('xmlhttprequest-ssl');\n  var xhr = new XMLHttpRequest({ xdomain: false });\n  return null != xhr.responseType;\n})();\n\n/**\n * Polling interface.\n *\n * @param {Object} opts\n * @api private\n */\n\nfunction Polling (opts) {\n  var forceBase64 = (opts && opts.forceBase64);\n  if (!hasXHR2 || forceBase64) {\n    this.supportsBinary = false;\n  }\n  Transport.call(this, opts);\n}\n\n/**\n * Inherits from Transport.\n */\n\ninherit(Polling, Transport);\n\n/**\n * Transport name.\n */\n\nPolling.prototype.name = 'polling';\n\n/**\n * Opens the socket (triggers polling). We write a PING message to determine\n * when the transport is open.\n *\n * @api private\n */\n\nPolling.prototype.doOpen = function () {\n  this.poll();\n};\n\n/**\n * Pauses polling.\n *\n * @param {Function} callback upon buffers are flushed and transport is paused\n * @api private\n */\n\nPolling.prototype.pause = function (onPause) {\n  var self = this;\n\n  this.readyState = 'pausing';\n\n  function pause () {\n    debug('paused');\n    self.readyState = 'paused';\n    onPause();\n  }\n\n  if (this.polling || !this.writable) {\n    var total = 0;\n\n    if (this.polling) {\n      debug('we are currently polling - waiting to pause');\n      total++;\n      this.once('pollComplete', function () {\n        debug('pre-pause polling complete');\n        --total || pause();\n      });\n    }\n\n    if (!this.writable) {\n      debug('we are currently writing - waiting to pause');\n      total++;\n      this.once('drain', function () {\n        debug('pre-pause writing complete');\n        --total || pause();\n      });\n    }\n  } else {\n    pause();\n  }\n};\n\n/**\n * Starts polling cycle.\n *\n * @api public\n */\n\nPolling.prototype.poll = function () {\n  debug('polling');\n  this.polling = true;\n  this.doPoll();\n  this.emit('poll');\n};\n\n/**\n * Overloads onData to detect payloads.\n *\n * @api private\n */\n\nPolling.prototype.onData = function (data) {\n  var self = this;\n  debug('polling got data %s', data);\n  var callback = function (packet, index, total) {\n    // if its the first message we consider the transport open\n    if ('opening' === self.readyState) {\n      self.onOpen();\n    }\n\n    // if its a close packet, we close the ongoing requests\n    if ('close' === packet.type) {\n      self.onClose();\n      return false;\n    }\n\n    // otherwise bypass onData and handle the message\n    self.onPacket(packet);\n  };\n\n  // decode payload\n  parser.decodePayload(data, this.socket.binaryType, callback);\n\n  // if an event did not trigger closing\n  if ('closed' !== this.readyState) {\n    // if we got data we're not polling\n    this.polling = false;\n    this.emit('pollComplete');\n\n    if ('open' === this.readyState) {\n      this.poll();\n    } else {\n      debug('ignoring poll - transport state \"%s\"', this.readyState);\n    }\n  }\n};\n\n/**\n * For polling, send a close packet.\n *\n * @api private\n */\n\nPolling.prototype.doClose = function () {\n  var self = this;\n\n  function close () {\n    debug('writing close packet');\n    self.write([{ type: 'close' }]);\n  }\n\n  if ('open' === this.readyState) {\n    debug('transport open - closing');\n    close();\n  } else {\n    // in case we're trying to close while\n    // handshaking is in progress (GH-164)\n    debug('transport not open - deferring close');\n    this.once('open', close);\n  }\n};\n\n/**\n * Writes a packets payload.\n *\n * @param {Array} data packets\n * @param {Function} drain callback\n * @api private\n */\n\nPolling.prototype.write = function (packets) {\n  var self = this;\n  this.writable = false;\n  var callbackfn = function () {\n    self.writable = true;\n    self.emit('drain');\n  };\n\n  parser.encodePayload(packets, this.supportsBinary, function (data) {\n    self.doWrite(data, callbackfn);\n  });\n};\n\n/**\n * Generates uri for connection.\n *\n * @api private\n */\n\nPolling.prototype.uri = function () {\n  var query = this.query || {};\n  var schema = this.secure ? 'https' : 'http';\n  var port = '';\n\n  // cache busting is forced\n  if (false !== this.timestampRequests) {\n    query[this.timestampParam] = yeast();\n  }\n\n  if (!this.supportsBinary && !query.sid) {\n    query.b64 = 1;\n  }\n\n  query = parseqs.encode(query);\n\n  // avoid port if default for schema\n  if (this.port && (('https' === schema && Number(this.port) !== 443) ||\n     ('http' === schema && Number(this.port) !== 80))) {\n    port = ':' + this.port;\n  }\n\n  // prepend ? to query\n  if (query.length) {\n    query = '?' + query;\n  }\n\n  var ipv6 = this.hostname.indexOf(':') !== -1;\n  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/polling.js\n// module id = 19\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar parser = require('engine.io-parser');\nvar Emitter = require('component-emitter');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Transport;\n\n/**\n * Transport abstract constructor.\n *\n * @param {Object} options.\n * @api private\n */\n\nfunction Transport (opts) {\n  this.path = opts.path;\n  this.hostname = opts.hostname;\n  this.port = opts.port;\n  this.secure = opts.secure;\n  this.query = opts.query;\n  this.timestampParam = opts.timestampParam;\n  this.timestampRequests = opts.timestampRequests;\n  this.readyState = '';\n  this.agent = opts.agent || false;\n  this.socket = opts.socket;\n  this.enablesXDR = opts.enablesXDR;\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx;\n  this.key = opts.key;\n  this.passphrase = opts.passphrase;\n  this.cert = opts.cert;\n  this.ca = opts.ca;\n  this.ciphers = opts.ciphers;\n  this.rejectUnauthorized = opts.rejectUnauthorized;\n  this.forceNode = opts.forceNode;\n\n  // results of ReactNative environment detection\n  this.isReactNative = opts.isReactNative;\n\n  // other options for Node.js client\n  this.extraHeaders = opts.extraHeaders;\n  this.localAddress = opts.localAddress;\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Transport.prototype);\n\n/**\n * Emits an error.\n *\n * @param {String} str\n * @return {Transport} for chaining\n * @api public\n */\n\nTransport.prototype.onError = function (msg, desc) {\n  var err = new Error(msg);\n  err.type = 'TransportError';\n  err.description = desc;\n  this.emit('error', err);\n  return this;\n};\n\n/**\n * Opens the transport.\n *\n * @api public\n */\n\nTransport.prototype.open = function () {\n  if ('closed' === this.readyState || '' === this.readyState) {\n    this.readyState = 'opening';\n    this.doOpen();\n  }\n\n  return this;\n};\n\n/**\n * Closes the transport.\n *\n * @api private\n */\n\nTransport.prototype.close = function () {\n  if ('opening' === this.readyState || 'open' === this.readyState) {\n    this.doClose();\n    this.onClose();\n  }\n\n  return this;\n};\n\n/**\n * Sends multiple packets.\n *\n * @param {Array} packets\n * @api private\n */\n\nTransport.prototype.send = function (packets) {\n  if ('open' === this.readyState) {\n    this.write(packets);\n  } else {\n    throw new Error('Transport not open');\n  }\n};\n\n/**\n * Called upon open\n *\n * @api private\n */\n\nTransport.prototype.onOpen = function () {\n  this.readyState = 'open';\n  this.writable = true;\n  this.emit('open');\n};\n\n/**\n * Called with data.\n *\n * @param {String} data\n * @api private\n */\n\nTransport.prototype.onData = function (data) {\n  var packet = parser.decodePacket(data, this.socket.binaryType);\n  this.onPacket(packet);\n};\n\n/**\n * Called with a decoded packet.\n */\n\nTransport.prototype.onPacket = function (packet) {\n  this.emit('packet', packet);\n};\n\n/**\n * Called upon close.\n *\n * @api private\n */\n\nTransport.prototype.onClose = function () {\n  this.readyState = 'closed';\n  this.emit('close');\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transport.js\n// module id = 20\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar keys = require('./keys');\nvar hasBinary = require('has-binary2');\nvar sliceBuffer = require('arraybuffer.slice');\nvar after = require('after');\nvar utf8 = require('./utf8');\n\nvar base64encoder;\nif (typeof ArrayBuffer !== 'undefined') {\n  base64encoder = require('base64-arraybuffer');\n}\n\n/**\n * Check if we are running an android browser. That requires us to use\n * ArrayBuffer with polling transports...\n *\n * http://ghinda.net/jpeg-blob-ajax-android/\n */\n\nvar isAndroid = typeof navigator !== 'undefined' && /Android/i.test(navigator.userAgent);\n\n/**\n * Check if we are running in PhantomJS.\n * Uploading a Blob with PhantomJS does not work correctly, as reported here:\n * https://github.com/ariya/phantomjs/issues/11395\n * @type boolean\n */\nvar isPhantomJS = typeof navigator !== 'undefined' && /PhantomJS/i.test(navigator.userAgent);\n\n/**\n * When true, avoids using Blobs to encode payloads.\n * @type boolean\n */\nvar dontSendBlobs = isAndroid || isPhantomJS;\n\n/**\n * Current protocol version.\n */\n\nexports.protocol = 3;\n\n/**\n * Packet types.\n */\n\nvar packets = exports.packets = {\n    open:     0    // non-ws\n  , close:    1    // non-ws\n  , ping:     2\n  , pong:     3\n  , message:  4\n  , upgrade:  5\n  , noop:     6\n};\n\nvar packetslist = keys(packets);\n\n/**\n * Premade error packet.\n */\n\nvar err = { type: 'error', data: 'parser error' };\n\n/**\n * Create a blob api even for blob builder when vendor prefixes exist\n */\n\nvar Blob = require('blob');\n\n/**\n * Encodes a packet.\n *\n *     <packet type id> [ <data> ]\n *\n * Example:\n *\n *     5hello world\n *     3\n *     4\n *\n * Binary is encoded in an identical principle\n *\n * @api private\n */\n\nexports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {\n  if (typeof supportsBinary === 'function') {\n    callback = supportsBinary;\n    supportsBinary = false;\n  }\n\n  if (typeof utf8encode === 'function') {\n    callback = utf8encode;\n    utf8encode = null;\n  }\n\n  var data = (packet.data === undefined)\n    ? undefined\n    : packet.data.buffer || packet.data;\n\n  if (typeof ArrayBuffer !== 'undefined' && data instanceof ArrayBuffer) {\n    return encodeArrayBuffer(packet, supportsBinary, callback);\n  } else if (typeof Blob !== 'undefined' && data instanceof Blob) {\n    return encodeBlob(packet, supportsBinary, callback);\n  }\n\n  // might be an object with { base64: true, data: dataAsBase64String }\n  if (data && data.base64) {\n    return encodeBase64Object(packet, callback);\n  }\n\n  // Sending data as a utf-8 string\n  var encoded = packets[packet.type];\n\n  // data fragment is optional\n  if (undefined !== packet.data) {\n    encoded += utf8encode ? utf8.encode(String(packet.data), { strict: false }) : String(packet.data);\n  }\n\n  return callback('' + encoded);\n\n};\n\nfunction encodeBase64Object(packet, callback) {\n  // packet data is an object { base64: true, data: dataAsBase64String }\n  var message = 'b' + exports.packets[packet.type] + packet.data.data;\n  return callback(message);\n}\n\n/**\n * Encode packet helpers for binary types\n */\n\nfunction encodeArrayBuffer(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  var data = packet.data;\n  var contentArray = new Uint8Array(data);\n  var resultBuffer = new Uint8Array(1 + data.byteLength);\n\n  resultBuffer[0] = packets[packet.type];\n  for (var i = 0; i < contentArray.length; i++) {\n    resultBuffer[i+1] = contentArray[i];\n  }\n\n  return callback(resultBuffer.buffer);\n}\n\nfunction encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  var fr = new FileReader();\n  fr.onload = function() {\n    exports.encodePacket({ type: packet.type, data: fr.result }, supportsBinary, true, callback);\n  };\n  return fr.readAsArrayBuffer(packet.data);\n}\n\nfunction encodeBlob(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  if (dontSendBlobs) {\n    return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);\n  }\n\n  var length = new Uint8Array(1);\n  length[0] = packets[packet.type];\n  var blob = new Blob([length.buffer, packet.data]);\n\n  return callback(blob);\n}\n\n/**\n * Encodes a packet with binary data in a base64 string\n *\n * @param {Object} packet, has `type` and `data`\n * @return {String} base64 encoded message\n */\n\nexports.encodeBase64Packet = function(packet, callback) {\n  var message = 'b' + exports.packets[packet.type];\n  if (typeof Blob !== 'undefined' && packet.data instanceof Blob) {\n    var fr = new FileReader();\n    fr.onload = function() {\n      var b64 = fr.result.split(',')[1];\n      callback(message + b64);\n    };\n    return fr.readAsDataURL(packet.data);\n  }\n\n  var b64data;\n  try {\n    b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));\n  } catch (e) {\n    // iPhone Safari doesn't let you apply with typed arrays\n    var typed = new Uint8Array(packet.data);\n    var basic = new Array(typed.length);\n    for (var i = 0; i < typed.length; i++) {\n      basic[i] = typed[i];\n    }\n    b64data = String.fromCharCode.apply(null, basic);\n  }\n  message += btoa(b64data);\n  return callback(message);\n};\n\n/**\n * Decodes a packet. Changes format to Blob if requested.\n *\n * @return {Object} with `type` and `data` (if any)\n * @api private\n */\n\nexports.decodePacket = function (data, binaryType, utf8decode) {\n  if (data === undefined) {\n    return err;\n  }\n  // String data\n  if (typeof data === 'string') {\n    if (data.charAt(0) === 'b') {\n      return exports.decodeBase64Packet(data.substr(1), binaryType);\n    }\n\n    if (utf8decode) {\n      data = tryDecode(data);\n      if (data === false) {\n        return err;\n      }\n    }\n    var type = data.charAt(0);\n\n    if (Number(type) != type || !packetslist[type]) {\n      return err;\n    }\n\n    if (data.length > 1) {\n      return { type: packetslist[type], data: data.substring(1) };\n    } else {\n      return { type: packetslist[type] };\n    }\n  }\n\n  var asArray = new Uint8Array(data);\n  var type = asArray[0];\n  var rest = sliceBuffer(data, 1);\n  if (Blob && binaryType === 'blob') {\n    rest = new Blob([rest]);\n  }\n  return { type: packetslist[type], data: rest };\n};\n\nfunction tryDecode(data) {\n  try {\n    data = utf8.decode(data, { strict: false });\n  } catch (e) {\n    return false;\n  }\n  return data;\n}\n\n/**\n * Decodes a packet encoded in a base64 string\n *\n * @param {String} base64 encoded message\n * @return {Object} with `type` and `data` (if any)\n */\n\nexports.decodeBase64Packet = function(msg, binaryType) {\n  var type = packetslist[msg.charAt(0)];\n  if (!base64encoder) {\n    return { type: type, data: { base64: true, data: msg.substr(1) } };\n  }\n\n  var data = base64encoder.decode(msg.substr(1));\n\n  if (binaryType === 'blob' && Blob) {\n    data = new Blob([data]);\n  }\n\n  return { type: type, data: data };\n};\n\n/**\n * Encodes multiple messages (payload).\n *\n *     <length>:data\n *\n * Example:\n *\n *     11:hello world2:hi\n *\n * If any contents are binary, they will be encoded as base64 strings. Base64\n * encoded strings are marked with a b before the length specifier\n *\n * @param {Array} packets\n * @api private\n */\n\nexports.encodePayload = function (packets, supportsBinary, callback) {\n  if (typeof supportsBinary === 'function') {\n    callback = supportsBinary;\n    supportsBinary = null;\n  }\n\n  var isBinary = hasBinary(packets);\n\n  if (supportsBinary && isBinary) {\n    if (Blob && !dontSendBlobs) {\n      return exports.encodePayloadAsBlob(packets, callback);\n    }\n\n    return exports.encodePayloadAsArrayBuffer(packets, callback);\n  }\n\n  if (!packets.length) {\n    return callback('0:');\n  }\n\n  function setLengthHeader(message) {\n    return message.length + ':' + message;\n  }\n\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, !isBinary ? false : supportsBinary, false, function(message) {\n      doneCallback(null, setLengthHeader(message));\n    });\n  }\n\n  map(packets, encodeOne, function(err, results) {\n    return callback(results.join(''));\n  });\n};\n\n/**\n * Async array map using after\n */\n\nfunction map(ary, each, done) {\n  var result = new Array(ary.length);\n  var next = after(ary.length, done);\n\n  var eachWithIndex = function(i, el, cb) {\n    each(el, function(error, msg) {\n      result[i] = msg;\n      cb(error, result);\n    });\n  };\n\n  for (var i = 0; i < ary.length; i++) {\n    eachWithIndex(i, ary[i], next);\n  }\n}\n\n/*\n * Decodes data when a payload is maybe expected. Possible binary contents are\n * decoded from their base64 representation\n *\n * @param {String} data, callback method\n * @api public\n */\n\nexports.decodePayload = function (data, binaryType, callback) {\n  if (typeof data !== 'string') {\n    return exports.decodePayloadAsBinary(data, binaryType, callback);\n  }\n\n  if (typeof binaryType === 'function') {\n    callback = binaryType;\n    binaryType = null;\n  }\n\n  var packet;\n  if (data === '') {\n    // parser error - ignoring payload\n    return callback(err, 0, 1);\n  }\n\n  var length = '', n, msg;\n\n  for (var i = 0, l = data.length; i < l; i++) {\n    var chr = data.charAt(i);\n\n    if (chr !== ':') {\n      length += chr;\n      continue;\n    }\n\n    if (length === '' || (length != (n = Number(length)))) {\n      // parser error - ignoring payload\n      return callback(err, 0, 1);\n    }\n\n    msg = data.substr(i + 1, n);\n\n    if (length != msg.length) {\n      // parser error - ignoring payload\n      return callback(err, 0, 1);\n    }\n\n    if (msg.length) {\n      packet = exports.decodePacket(msg, binaryType, false);\n\n      if (err.type === packet.type && err.data === packet.data) {\n        // parser error in individual packet - ignoring payload\n        return callback(err, 0, 1);\n      }\n\n      var ret = callback(packet, i + n, l);\n      if (false === ret) return;\n    }\n\n    // advance cursor\n    i += n;\n    length = '';\n  }\n\n  if (length !== '') {\n    // parser error - ignoring payload\n    return callback(err, 0, 1);\n  }\n\n};\n\n/**\n * Encodes multiple messages (payload) as binary.\n *\n * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number\n * 255><data>\n *\n * Example:\n * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers\n *\n * @param {Array} packets\n * @return {ArrayBuffer} encoded payload\n * @api private\n */\n\nexports.encodePayloadAsArrayBuffer = function(packets, callback) {\n  if (!packets.length) {\n    return callback(new ArrayBuffer(0));\n  }\n\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, true, true, function(data) {\n      return doneCallback(null, data);\n    });\n  }\n\n  map(packets, encodeOne, function(err, encodedPackets) {\n    var totalLength = encodedPackets.reduce(function(acc, p) {\n      var len;\n      if (typeof p === 'string'){\n        len = p.length;\n      } else {\n        len = p.byteLength;\n      }\n      return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2\n    }, 0);\n\n    var resultArray = new Uint8Array(totalLength);\n\n    var bufferIndex = 0;\n    encodedPackets.forEach(function(p) {\n      var isString = typeof p === 'string';\n      var ab = p;\n      if (isString) {\n        var view = new Uint8Array(p.length);\n        for (var i = 0; i < p.length; i++) {\n          view[i] = p.charCodeAt(i);\n        }\n        ab = view.buffer;\n      }\n\n      if (isString) { // not true binary\n        resultArray[bufferIndex++] = 0;\n      } else { // true binary\n        resultArray[bufferIndex++] = 1;\n      }\n\n      var lenStr = ab.byteLength.toString();\n      for (var i = 0; i < lenStr.length; i++) {\n        resultArray[bufferIndex++] = parseInt(lenStr[i]);\n      }\n      resultArray[bufferIndex++] = 255;\n\n      var view = new Uint8Array(ab);\n      for (var i = 0; i < view.length; i++) {\n        resultArray[bufferIndex++] = view[i];\n      }\n    });\n\n    return callback(resultArray.buffer);\n  });\n};\n\n/**\n * Encode as Blob\n */\n\nexports.encodePayloadAsBlob = function(packets, callback) {\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, true, true, function(encoded) {\n      var binaryIdentifier = new Uint8Array(1);\n      binaryIdentifier[0] = 1;\n      if (typeof encoded === 'string') {\n        var view = new Uint8Array(encoded.length);\n        for (var i = 0; i < encoded.length; i++) {\n          view[i] = encoded.charCodeAt(i);\n        }\n        encoded = view.buffer;\n        binaryIdentifier[0] = 0;\n      }\n\n      var len = (encoded instanceof ArrayBuffer)\n        ? encoded.byteLength\n        : encoded.size;\n\n      var lenStr = len.toString();\n      var lengthAry = new Uint8Array(lenStr.length + 1);\n      for (var i = 0; i < lenStr.length; i++) {\n        lengthAry[i] = parseInt(lenStr[i]);\n      }\n      lengthAry[lenStr.length] = 255;\n\n      if (Blob) {\n        var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);\n        doneCallback(null, blob);\n      }\n    });\n  }\n\n  map(packets, encodeOne, function(err, results) {\n    return callback(new Blob(results));\n  });\n};\n\n/*\n * Decodes data when a payload is maybe expected. Strings are decoded by\n * interpreting each byte as a key code for entries marked to start with 0. See\n * description of encodePayloadAsBinary\n *\n * @param {ArrayBuffer} data, callback method\n * @api public\n */\n\nexports.decodePayloadAsBinary = function (data, binaryType, callback) {\n  if (typeof binaryType === 'function') {\n    callback = binaryType;\n    binaryType = null;\n  }\n\n  var bufferTail = data;\n  var buffers = [];\n\n  while (bufferTail.byteLength > 0) {\n    var tailArray = new Uint8Array(bufferTail);\n    var isString = tailArray[0] === 0;\n    var msgLength = '';\n\n    for (var i = 1; ; i++) {\n      if (tailArray[i] === 255) break;\n\n      // 310 = char length of Number.MAX_VALUE\n      if (msgLength.length > 310) {\n        return callback(err, 0, 1);\n      }\n\n      msgLength += tailArray[i];\n    }\n\n    bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);\n    msgLength = parseInt(msgLength);\n\n    var msg = sliceBuffer(bufferTail, 0, msgLength);\n    if (isString) {\n      try {\n        msg = String.fromCharCode.apply(null, new Uint8Array(msg));\n      } catch (e) {\n        // iPhone Safari doesn't let you apply to typed arrays\n        var typed = new Uint8Array(msg);\n        msg = '';\n        for (var i = 0; i < typed.length; i++) {\n          msg += String.fromCharCode(typed[i]);\n        }\n      }\n    }\n\n    buffers.push(msg);\n    bufferTail = sliceBuffer(bufferTail, msgLength);\n  }\n\n  var total = buffers.length;\n  buffers.forEach(function(buffer, i) {\n    callback(exports.decodePacket(buffer, binaryType, true), i, total);\n  });\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-parser/lib/browser.js\n// module id = 21\n// module chunks = 0","\n/**\n * Gets the keys for an object.\n *\n * @return {Array} keys\n * @api private\n */\n\nmodule.exports = Object.keys || function keys (obj){\n  var arr = [];\n  var has = Object.prototype.hasOwnProperty;\n\n  for (var i in obj) {\n    if (has.call(obj, i)) {\n      arr.push(i);\n    }\n  }\n  return arr;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-parser/lib/keys.js\n// module id = 22\n// module chunks = 0","/* global Blob File */\n\n/*\n * Module requirements.\n */\n\nvar isArray = require('isarray');\n\nvar toString = Object.prototype.toString;\nvar withNativeBlob = typeof Blob === 'function' ||\n                        typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]';\nvar withNativeFile = typeof File === 'function' ||\n                        typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]';\n\n/**\n * Module exports.\n */\n\nmodule.exports = hasBinary;\n\n/**\n * Checks for binary data.\n *\n * Supports Buffer, ArrayBuffer, Blob and File.\n *\n * @param {Object} anything\n * @api public\n */\n\nfunction hasBinary (obj) {\n  if (!obj || typeof obj !== 'object') {\n    return false;\n  }\n\n  if (isArray(obj)) {\n    for (var i = 0, l = obj.length; i < l; i++) {\n      if (hasBinary(obj[i])) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  if ((typeof Buffer === 'function' && Buffer.isBuffer && Buffer.isBuffer(obj)) ||\n    (typeof ArrayBuffer === 'function' && obj instanceof ArrayBuffer) ||\n    (withNativeBlob && obj instanceof Blob) ||\n    (withNativeFile && obj instanceof File)\n  ) {\n    return true;\n  }\n\n  // see: https://github.com/Automattic/has-binary/pull/4\n  if (obj.toJSON && typeof obj.toJSON === 'function' && arguments.length === 1) {\n    return hasBinary(obj.toJSON(), true);\n  }\n\n  for (var key in obj) {\n    if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n      return true;\n    }\n  }\n\n  return false;\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/has-binary2/index.js\n// module id = 23\n// module chunks = 0","/**\n * An abstraction for slicing an arraybuffer even when\n * ArrayBuffer.prototype.slice is not supported\n *\n * @api public\n */\n\nmodule.exports = function(arraybuffer, start, end) {\n  var bytes = arraybuffer.byteLength;\n  start = start || 0;\n  end = end || bytes;\n\n  if (arraybuffer.slice) { return arraybuffer.slice(start, end); }\n\n  if (start < 0) { start += bytes; }\n  if (end < 0) { end += bytes; }\n  if (end > bytes) { end = bytes; }\n\n  if (start >= bytes || start >= end || bytes === 0) {\n    return new ArrayBuffer(0);\n  }\n\n  var abv = new Uint8Array(arraybuffer);\n  var result = new Uint8Array(end - start);\n  for (var i = start, ii = 0; i < end; i++, ii++) {\n    result[ii] = abv[i];\n  }\n  return result.buffer;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/arraybuffer.slice/index.js\n// module id = 24\n// module chunks = 0","module.exports = after\n\nfunction after(count, callback, err_cb) {\n    var bail = false\n    err_cb = err_cb || noop\n    proxy.count = count\n\n    return (count === 0) ? callback() : proxy\n\n    function proxy(err, result) {\n        if (proxy.count <= 0) {\n            throw new Error('after called too many times')\n        }\n        --proxy.count\n\n        // after first error, rest are passed to err_cb\n        if (err) {\n            bail = true\n            callback(err)\n            // future error callbacks will go to error handler\n            callback = err_cb\n        } else if (proxy.count === 0 && !bail) {\n            callback(null, result)\n        }\n    }\n}\n\nfunction noop() {}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/after/index.js\n// module id = 25\n// module chunks = 0","/*! https://mths.be/utf8js v2.1.2 by @mathias */\n\nvar stringFromCharCode = String.fromCharCode;\n\n// Taken from https://mths.be/punycode\nfunction ucs2decode(string) {\n\tvar output = [];\n\tvar counter = 0;\n\tvar length = string.length;\n\tvar value;\n\tvar extra;\n\twhile (counter < length) {\n\t\tvalue = string.charCodeAt(counter++);\n\t\tif (value >= 0xD800 && value <= 0xDBFF && counter < length) {\n\t\t\t// high surrogate, and there is a next character\n\t\t\textra = string.charCodeAt(counter++);\n\t\t\tif ((extra & 0xFC00) == 0xDC00) { // low surrogate\n\t\t\t\toutput.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);\n\t\t\t} else {\n\t\t\t\t// unmatched surrogate; only append this code unit, in case the next\n\t\t\t\t// code unit is the high surrogate of a surrogate pair\n\t\t\t\toutput.push(value);\n\t\t\t\tcounter--;\n\t\t\t}\n\t\t} else {\n\t\t\toutput.push(value);\n\t\t}\n\t}\n\treturn output;\n}\n\n// Taken from https://mths.be/punycode\nfunction ucs2encode(array) {\n\tvar length = array.length;\n\tvar index = -1;\n\tvar value;\n\tvar output = '';\n\twhile (++index < length) {\n\t\tvalue = array[index];\n\t\tif (value > 0xFFFF) {\n\t\t\tvalue -= 0x10000;\n\t\t\toutput += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);\n\t\t\tvalue = 0xDC00 | value & 0x3FF;\n\t\t}\n\t\toutput += stringFromCharCode(value);\n\t}\n\treturn output;\n}\n\nfunction checkScalarValue(codePoint, strict) {\n\tif (codePoint >= 0xD800 && codePoint <= 0xDFFF) {\n\t\tif (strict) {\n\t\t\tthrow Error(\n\t\t\t\t'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +\n\t\t\t\t' is not a scalar value'\n\t\t\t);\n\t\t}\n\t\treturn false;\n\t}\n\treturn true;\n}\n/*--------------------------------------------------------------------------*/\n\nfunction createByte(codePoint, shift) {\n\treturn stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);\n}\n\nfunction encodeCodePoint(codePoint, strict) {\n\tif ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence\n\t\treturn stringFromCharCode(codePoint);\n\t}\n\tvar symbol = '';\n\tif ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence\n\t\tsymbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);\n\t}\n\telse if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence\n\t\tif (!checkScalarValue(codePoint, strict)) {\n\t\t\tcodePoint = 0xFFFD;\n\t\t}\n\t\tsymbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);\n\t\tsymbol += createByte(codePoint, 6);\n\t}\n\telse if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence\n\t\tsymbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);\n\t\tsymbol += createByte(codePoint, 12);\n\t\tsymbol += createByte(codePoint, 6);\n\t}\n\tsymbol += stringFromCharCode((codePoint & 0x3F) | 0x80);\n\treturn symbol;\n}\n\nfunction utf8encode(string, opts) {\n\topts = opts || {};\n\tvar strict = false !== opts.strict;\n\n\tvar codePoints = ucs2decode(string);\n\tvar length = codePoints.length;\n\tvar index = -1;\n\tvar codePoint;\n\tvar byteString = '';\n\twhile (++index < length) {\n\t\tcodePoint = codePoints[index];\n\t\tbyteString += encodeCodePoint(codePoint, strict);\n\t}\n\treturn byteString;\n}\n\n/*--------------------------------------------------------------------------*/\n\nfunction readContinuationByte() {\n\tif (byteIndex >= byteCount) {\n\t\tthrow Error('Invalid byte index');\n\t}\n\n\tvar continuationByte = byteArray[byteIndex] & 0xFF;\n\tbyteIndex++;\n\n\tif ((continuationByte & 0xC0) == 0x80) {\n\t\treturn continuationByte & 0x3F;\n\t}\n\n\t// If we end up here, it’s not a continuation byte\n\tthrow Error('Invalid continuation byte');\n}\n\nfunction decodeSymbol(strict) {\n\tvar byte1;\n\tvar byte2;\n\tvar byte3;\n\tvar byte4;\n\tvar codePoint;\n\n\tif (byteIndex > byteCount) {\n\t\tthrow Error('Invalid byte index');\n\t}\n\n\tif (byteIndex == byteCount) {\n\t\treturn false;\n\t}\n\n\t// Read first byte\n\tbyte1 = byteArray[byteIndex] & 0xFF;\n\tbyteIndex++;\n\n\t// 1-byte sequence (no continuation bytes)\n\tif ((byte1 & 0x80) == 0) {\n\t\treturn byte1;\n\t}\n\n\t// 2-byte sequence\n\tif ((byte1 & 0xE0) == 0xC0) {\n\t\tbyte2 = readContinuationByte();\n\t\tcodePoint = ((byte1 & 0x1F) << 6) | byte2;\n\t\tif (codePoint >= 0x80) {\n\t\t\treturn codePoint;\n\t\t} else {\n\t\t\tthrow Error('Invalid continuation byte');\n\t\t}\n\t}\n\n\t// 3-byte sequence (may include unpaired surrogates)\n\tif ((byte1 & 0xF0) == 0xE0) {\n\t\tbyte2 = readContinuationByte();\n\t\tbyte3 = readContinuationByte();\n\t\tcodePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;\n\t\tif (codePoint >= 0x0800) {\n\t\t\treturn checkScalarValue(codePoint, strict) ? codePoint : 0xFFFD;\n\t\t} else {\n\t\t\tthrow Error('Invalid continuation byte');\n\t\t}\n\t}\n\n\t// 4-byte sequence\n\tif ((byte1 & 0xF8) == 0xF0) {\n\t\tbyte2 = readContinuationByte();\n\t\tbyte3 = readContinuationByte();\n\t\tbyte4 = readContinuationByte();\n\t\tcodePoint = ((byte1 & 0x07) << 0x12) | (byte2 << 0x0C) |\n\t\t\t(byte3 << 0x06) | byte4;\n\t\tif (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {\n\t\t\treturn codePoint;\n\t\t}\n\t}\n\n\tthrow Error('Invalid UTF-8 detected');\n}\n\nvar byteArray;\nvar byteCount;\nvar byteIndex;\nfunction utf8decode(byteString, opts) {\n\topts = opts || {};\n\tvar strict = false !== opts.strict;\n\n\tbyteArray = ucs2decode(byteString);\n\tbyteCount = byteArray.length;\n\tbyteIndex = 0;\n\tvar codePoints = [];\n\tvar tmp;\n\twhile ((tmp = decodeSymbol(strict)) !== false) {\n\t\tcodePoints.push(tmp);\n\t}\n\treturn ucs2encode(codePoints);\n}\n\nmodule.exports = {\n\tversion: '2.1.2',\n\tencode: utf8encode,\n\tdecode: utf8decode\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-parser/lib/utf8.js\n// module id = 26\n// module chunks = 0","/*\n * base64-arraybuffer\n * https://github.com/niklasvh/base64-arraybuffer\n *\n * Copyright (c) 2012 Niklas von Hertzen\n * Licensed under the MIT license.\n */\n(function(){\n  \"use strict\";\n\n  var chars = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\";\n\n  // Use a lookup table to find the index.\n  var lookup = new Uint8Array(256);\n  for (var i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n  }\n\n  exports.encode = function(arraybuffer) {\n    var bytes = new Uint8Array(arraybuffer),\n    i, len = bytes.length, base64 = \"\";\n\n    for (i = 0; i < len; i+=3) {\n      base64 += chars[bytes[i] >> 2];\n      base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n      base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n      base64 += chars[bytes[i + 2] & 63];\n    }\n\n    if ((len % 3) === 2) {\n      base64 = base64.substring(0, base64.length - 1) + \"=\";\n    } else if (len % 3 === 1) {\n      base64 = base64.substring(0, base64.length - 2) + \"==\";\n    }\n\n    return base64;\n  };\n\n  exports.decode =  function(base64) {\n    var bufferLength = base64.length * 0.75,\n    len = base64.length, i, p = 0,\n    encoded1, encoded2, encoded3, encoded4;\n\n    if (base64[base64.length - 1] === \"=\") {\n      bufferLength--;\n      if (base64[base64.length - 2] === \"=\") {\n        bufferLength--;\n      }\n    }\n\n    var arraybuffer = new ArrayBuffer(bufferLength),\n    bytes = new Uint8Array(arraybuffer);\n\n    for (i = 0; i < len; i+=4) {\n      encoded1 = lookup[base64.charCodeAt(i)];\n      encoded2 = lookup[base64.charCodeAt(i+1)];\n      encoded3 = lookup[base64.charCodeAt(i+2)];\n      encoded4 = lookup[base64.charCodeAt(i+3)];\n\n      bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n      bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n      bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n\n    return arraybuffer;\n  };\n})();\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/base64-arraybuffer/lib/base64-arraybuffer.js\n// module id = 27\n// module chunks = 0","/**\r\n * Create a blob builder even when vendor prefixes exist\r\n */\r\n\r\nvar BlobBuilder = typeof BlobBuilder !== 'undefined' ? BlobBuilder :\r\n  typeof WebKitBlobBuilder !== 'undefined' ? WebKitBlobBuilder :\r\n  typeof MSBlobBuilder !== 'undefined' ? MSBlobBuilder :\r\n  typeof MozBlobBuilder !== 'undefined' ? MozBlobBuilder : \r\n  false;\r\n\r\n/**\r\n * Check if Blob constructor is supported\r\n */\r\n\r\nvar blobSupported = (function() {\r\n  try {\r\n    var a = new Blob(['hi']);\r\n    return a.size === 2;\r\n  } catch(e) {\r\n    return false;\r\n  }\r\n})();\r\n\r\n/**\r\n * Check if Blob constructor supports ArrayBufferViews\r\n * Fails in Safari 6, so we need to map to ArrayBuffers there.\r\n */\r\n\r\nvar blobSupportsArrayBufferView = blobSupported && (function() {\r\n  try {\r\n    var b = new Blob([new Uint8Array([1,2])]);\r\n    return b.size === 2;\r\n  } catch(e) {\r\n    return false;\r\n  }\r\n})();\r\n\r\n/**\r\n * Check if BlobBuilder is supported\r\n */\r\n\r\nvar blobBuilderSupported = BlobBuilder\r\n  && BlobBuilder.prototype.append\r\n  && BlobBuilder.prototype.getBlob;\r\n\r\n/**\r\n * Helper function that maps ArrayBufferViews to ArrayBuffers\r\n * Used by BlobBuilder constructor and old browsers that didn't\r\n * support it in the Blob constructor.\r\n */\r\n\r\nfunction mapArrayBufferViews(ary) {\r\n  return ary.map(function(chunk) {\r\n    if (chunk.buffer instanceof ArrayBuffer) {\r\n      var buf = chunk.buffer;\r\n\r\n      // if this is a subarray, make a copy so we only\r\n      // include the subarray region from the underlying buffer\r\n      if (chunk.byteLength !== buf.byteLength) {\r\n        var copy = new Uint8Array(chunk.byteLength);\r\n        copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));\r\n        buf = copy.buffer;\r\n      }\r\n\r\n      return buf;\r\n    }\r\n\r\n    return chunk;\r\n  });\r\n}\r\n\r\nfunction BlobBuilderConstructor(ary, options) {\r\n  options = options || {};\r\n\r\n  var bb = new BlobBuilder();\r\n  mapArrayBufferViews(ary).forEach(function(part) {\r\n    bb.append(part);\r\n  });\r\n\r\n  return (options.type) ? bb.getBlob(options.type) : bb.getBlob();\r\n};\r\n\r\nfunction BlobConstructor(ary, options) {\r\n  return new Blob(mapArrayBufferViews(ary), options || {});\r\n};\r\n\r\nif (typeof Blob !== 'undefined') {\r\n  BlobBuilderConstructor.prototype = Blob.prototype;\r\n  BlobConstructor.prototype = Blob.prototype;\r\n}\r\n\r\nmodule.exports = (function() {\r\n  if (blobSupported) {\r\n    return blobSupportsArrayBufferView ? Blob : BlobConstructor;\r\n  } else if (blobBuilderSupported) {\r\n    return BlobBuilderConstructor;\r\n  } else {\r\n    return undefined;\r\n  }\r\n})();\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/blob/index.js\n// module id = 28\n// module chunks = 0","/**\r\n * Compiles a querystring\r\n * Returns string representation of the object\r\n *\r\n * @param {Object}\r\n * @api private\r\n */\r\n\r\nexports.encode = function (obj) {\r\n  var str = '';\r\n\r\n  for (var i in obj) {\r\n    if (obj.hasOwnProperty(i)) {\r\n      if (str.length) str += '&';\r\n      str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\r\n    }\r\n  }\r\n\r\n  return str;\r\n};\r\n\r\n/**\r\n * Parses a simple querystring into an object\r\n *\r\n * @param {String} qs\r\n * @api private\r\n */\r\n\r\nexports.decode = function(qs){\r\n  var qry = {};\r\n  var pairs = qs.split('&');\r\n  for (var i = 0, l = pairs.length; i < l; i++) {\r\n    var pair = pairs[i].split('=');\r\n    qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\r\n  }\r\n  return qry;\r\n};\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/parseqs/index.js\n// module id = 29\n// module chunks = 0","\nmodule.exports = function(a, b){\n  var fn = function(){};\n  fn.prototype = b.prototype;\n  a.prototype = new fn;\n  a.prototype.constructor = a;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/component-inherit/index.js\n// module id = 30\n// module chunks = 0","'use strict';\n\nvar alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('')\n  , length = 64\n  , map = {}\n  , seed = 0\n  , i = 0\n  , prev;\n\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nfunction encode(num) {\n  var encoded = '';\n\n  do {\n    encoded = alphabet[num % length] + encoded;\n    num = Math.floor(num / length);\n  } while (num > 0);\n\n  return encoded;\n}\n\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nfunction decode(str) {\n  var decoded = 0;\n\n  for (i = 0; i < str.length; i++) {\n    decoded = decoded * length + map[str.charAt(i)];\n  }\n\n  return decoded;\n}\n\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nfunction yeast() {\n  var now = encode(+new Date());\n\n  if (now !== prev) return seed = 0, prev = now;\n  return now +'.'+ encode(seed++);\n}\n\n//\n// Map each character to its index.\n//\nfor (; i < length; i++) map[alphabet[i]] = i;\n\n//\n// Expose the `yeast`, `encode` and `decode` functions.\n//\nyeast.encode = encode;\nyeast.decode = decode;\nmodule.exports = yeast;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/yeast/index.js\n// module id = 31\n// module chunks = 0","/**\n * Module requirements.\n */\n\nvar Polling = require('./polling');\nvar inherit = require('component-inherit');\n\n/**\n * Module exports.\n */\n\nmodule.exports = JSONPPolling;\n\n/**\n * Cached regular expressions.\n */\n\nvar rNewline = /\\n/g;\nvar rEscapedNewline = /\\\\n/g;\n\n/**\n * Global JSONP callbacks.\n */\n\nvar callbacks;\n\n/**\n * Noop.\n */\n\nfunction empty () { }\n\n/**\n * Until https://github.com/tc39/proposal-global is shipped.\n */\nfunction glob () {\n  return typeof self !== 'undefined' ? self\n      : typeof window !== 'undefined' ? window\n      : typeof global !== 'undefined' ? global : {};\n}\n\n/**\n * JSONP Polling constructor.\n *\n * @param {Object} opts.\n * @api public\n */\n\nfunction JSONPPolling (opts) {\n  Polling.call(this, opts);\n\n  this.query = this.query || {};\n\n  // define global callbacks array if not present\n  // we do this here (lazily) to avoid unneeded global pollution\n  if (!callbacks) {\n    // we need to consider multiple engines in the same page\n    var global = glob();\n    callbacks = global.___eio = (global.___eio || []);\n  }\n\n  // callback identifier\n  this.index = callbacks.length;\n\n  // add callback to jsonp global\n  var self = this;\n  callbacks.push(function (msg) {\n    self.onData(msg);\n  });\n\n  // append to query string\n  this.query.j = this.index;\n\n  // prevent spurious errors from being emitted when the window is unloaded\n  if (typeof addEventListener === 'function') {\n    addEventListener('beforeunload', function () {\n      if (self.script) self.script.onerror = empty;\n    }, false);\n  }\n}\n\n/**\n * Inherits from Polling.\n */\n\ninherit(JSONPPolling, Polling);\n\n/*\n * JSONP only supports binary as base64 encoded strings\n */\n\nJSONPPolling.prototype.supportsBinary = false;\n\n/**\n * Closes the socket.\n *\n * @api private\n */\n\nJSONPPolling.prototype.doClose = function () {\n  if (this.script) {\n    this.script.parentNode.removeChild(this.script);\n    this.script = null;\n  }\n\n  if (this.form) {\n    this.form.parentNode.removeChild(this.form);\n    this.form = null;\n    this.iframe = null;\n  }\n\n  Polling.prototype.doClose.call(this);\n};\n\n/**\n * Starts a poll cycle.\n *\n * @api private\n */\n\nJSONPPolling.prototype.doPoll = function () {\n  var self = this;\n  var script = document.createElement('script');\n\n  if (this.script) {\n    this.script.parentNode.removeChild(this.script);\n    this.script = null;\n  }\n\n  script.async = true;\n  script.src = this.uri();\n  script.onerror = function (e) {\n    self.onError('jsonp poll error', e);\n  };\n\n  var insertAt = document.getElementsByTagName('script')[0];\n  if (insertAt) {\n    insertAt.parentNode.insertBefore(script, insertAt);\n  } else {\n    (document.head || document.body).appendChild(script);\n  }\n  this.script = script;\n\n  var isUAgecko = 'undefined' !== typeof navigator && /gecko/i.test(navigator.userAgent);\n\n  if (isUAgecko) {\n    setTimeout(function () {\n      var iframe = document.createElement('iframe');\n      document.body.appendChild(iframe);\n      document.body.removeChild(iframe);\n    }, 100);\n  }\n};\n\n/**\n * Writes with a hidden iframe.\n *\n * @param {String} data to send\n * @param {Function} called upon flush.\n * @api private\n */\n\nJSONPPolling.prototype.doWrite = function (data, fn) {\n  var self = this;\n\n  if (!this.form) {\n    var form = document.createElement('form');\n    var area = document.createElement('textarea');\n    var id = this.iframeId = 'eio_iframe_' + this.index;\n    var iframe;\n\n    form.className = 'socketio';\n    form.style.position = 'absolute';\n    form.style.top = '-1000px';\n    form.style.left = '-1000px';\n    form.target = id;\n    form.method = 'POST';\n    form.setAttribute('accept-charset', 'utf-8');\n    area.name = 'd';\n    form.appendChild(area);\n    document.body.appendChild(form);\n\n    this.form = form;\n    this.area = area;\n  }\n\n  this.form.action = this.uri();\n\n  function complete () {\n    initIframe();\n    fn();\n  }\n\n  function initIframe () {\n    if (self.iframe) {\n      try {\n        self.form.removeChild(self.iframe);\n      } catch (e) {\n        self.onError('jsonp polling iframe removal error', e);\n      }\n    }\n\n    try {\n      // ie6 dynamic iframes with target=\"\" support (thanks Chris Lambacher)\n      var html = '<iframe src=\"javascript:0\" name=\"' + self.iframeId + '\">';\n      iframe = document.createElement(html);\n    } catch (e) {\n      iframe = document.createElement('iframe');\n      iframe.name = self.iframeId;\n      iframe.src = 'javascript:0';\n    }\n\n    iframe.id = self.iframeId;\n\n    self.form.appendChild(iframe);\n    self.iframe = iframe;\n  }\n\n  initIframe();\n\n  // escape \\n to prevent it from being converted into \\r\\n by some UAs\n  // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side\n  data = data.replace(rEscapedNewline, '\\\\\\n');\n  this.area.value = data.replace(rNewline, '\\\\n');\n\n  try {\n    this.form.submit();\n  } catch (e) {}\n\n  if (this.iframe.attachEvent) {\n    this.iframe.onreadystatechange = function () {\n      if (self.iframe.readyState === 'complete') {\n        complete();\n      }\n    };\n  } else {\n    this.iframe.onload = complete;\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/polling-jsonp.js\n// module id = 32\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar Transport = require('../transport');\nvar parser = require('engine.io-parser');\nvar parseqs = require('parseqs');\nvar inherit = require('component-inherit');\nvar yeast = require('yeast');\nvar debug = require('debug')('engine.io-client:websocket');\nvar BrowserWebSocket, NodeWebSocket;\nif (typeof self === 'undefined') {\n  try {\n    NodeWebSocket = require('ws');\n  } catch (e) { }\n} else {\n  BrowserWebSocket = self.WebSocket || self.MozWebSocket;\n}\n\n/**\n * Get either the `WebSocket` or `MozWebSocket` globals\n * in the browser or try to resolve WebSocket-compatible\n * interface exposed by `ws` for Node-like environment.\n */\n\nvar WebSocket = BrowserWebSocket || NodeWebSocket;\n\n/**\n * Module exports.\n */\n\nmodule.exports = WS;\n\n/**\n * WebSocket transport constructor.\n *\n * @api {Object} connection options\n * @api public\n */\n\nfunction WS (opts) {\n  var forceBase64 = (opts && opts.forceBase64);\n  if (forceBase64) {\n    this.supportsBinary = false;\n  }\n  this.perMessageDeflate = opts.perMessageDeflate;\n  this.usingBrowserWebSocket = BrowserWebSocket && !opts.forceNode;\n  this.protocols = opts.protocols;\n  if (!this.usingBrowserWebSocket) {\n    WebSocket = NodeWebSocket;\n  }\n  Transport.call(this, opts);\n}\n\n/**\n * Inherits from Transport.\n */\n\ninherit(WS, Transport);\n\n/**\n * Transport name.\n *\n * @api public\n */\n\nWS.prototype.name = 'websocket';\n\n/*\n * WebSockets support binary\n */\n\nWS.prototype.supportsBinary = true;\n\n/**\n * Opens socket.\n *\n * @api private\n */\n\nWS.prototype.doOpen = function () {\n  if (!this.check()) {\n    // let probe timeout\n    return;\n  }\n\n  var uri = this.uri();\n  var protocols = this.protocols;\n  var opts = {\n    agent: this.agent,\n    perMessageDeflate: this.perMessageDeflate\n  };\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n  if (this.extraHeaders) {\n    opts.headers = this.extraHeaders;\n  }\n  if (this.localAddress) {\n    opts.localAddress = this.localAddress;\n  }\n\n  try {\n    this.ws = this.usingBrowserWebSocket && !this.isReactNative ? (protocols ? new WebSocket(uri, protocols) : new WebSocket(uri)) : new WebSocket(uri, protocols, opts);\n  } catch (err) {\n    return this.emit('error', err);\n  }\n\n  if (this.ws.binaryType === undefined) {\n    this.supportsBinary = false;\n  }\n\n  if (this.ws.supports && this.ws.supports.binary) {\n    this.supportsBinary = true;\n    this.ws.binaryType = 'nodebuffer';\n  } else {\n    this.ws.binaryType = 'arraybuffer';\n  }\n\n  this.addEventListeners();\n};\n\n/**\n * Adds event listeners to the socket\n *\n * @api private\n */\n\nWS.prototype.addEventListeners = function () {\n  var self = this;\n\n  this.ws.onopen = function () {\n    self.onOpen();\n  };\n  this.ws.onclose = function () {\n    self.onClose();\n  };\n  this.ws.onmessage = function (ev) {\n    self.onData(ev.data);\n  };\n  this.ws.onerror = function (e) {\n    self.onError('websocket error', e);\n  };\n};\n\n/**\n * Writes data to socket.\n *\n * @param {Array} array of packets.\n * @api private\n */\n\nWS.prototype.write = function (packets) {\n  var self = this;\n  this.writable = false;\n\n  // encodePacket efficient as it uses WS framing\n  // no need for encodePayload\n  var total = packets.length;\n  for (var i = 0, l = total; i < l; i++) {\n    (function (packet) {\n      parser.encodePacket(packet, self.supportsBinary, function (data) {\n        if (!self.usingBrowserWebSocket) {\n          // always create a new object (GH-437)\n          var opts = {};\n          if (packet.options) {\n            opts.compress = packet.options.compress;\n          }\n\n          if (self.perMessageDeflate) {\n            var len = 'string' === typeof data ? Buffer.byteLength(data) : data.length;\n            if (len < self.perMessageDeflate.threshold) {\n              opts.compress = false;\n            }\n          }\n        }\n\n        // Sometimes the websocket has already been closed but the browser didn't\n        // have a chance of informing us about it yet, in that case send will\n        // throw an error\n        try {\n          if (self.usingBrowserWebSocket) {\n            // TypeError is thrown when passing the second argument on Safari\n            self.ws.send(data);\n          } else {\n            self.ws.send(data, opts);\n          }\n        } catch (e) {\n          debug('websocket closed before onclose event');\n        }\n\n        --total || done();\n      });\n    })(packets[i]);\n  }\n\n  function done () {\n    self.emit('flush');\n\n    // fake drain\n    // defer to next tick to allow Socket to clear writeBuffer\n    setTimeout(function () {\n      self.writable = true;\n      self.emit('drain');\n    }, 0);\n  }\n};\n\n/**\n * Called upon close\n *\n * @api private\n */\n\nWS.prototype.onClose = function () {\n  Transport.prototype.onClose.call(this);\n};\n\n/**\n * Closes socket.\n *\n * @api private\n */\n\nWS.prototype.doClose = function () {\n  if (typeof this.ws !== 'undefined') {\n    this.ws.close();\n  }\n};\n\n/**\n * Generates uri for connection.\n *\n * @api private\n */\n\nWS.prototype.uri = function () {\n  var query = this.query || {};\n  var schema = this.secure ? 'wss' : 'ws';\n  var port = '';\n\n  // avoid port if default for schema\n  if (this.port && (('wss' === schema && Number(this.port) !== 443) ||\n    ('ws' === schema && Number(this.port) !== 80))) {\n    port = ':' + this.port;\n  }\n\n  // append timestamp to URI\n  if (this.timestampRequests) {\n    query[this.timestampParam] = yeast();\n  }\n\n  // communicate binary support capabilities\n  if (!this.supportsBinary) {\n    query.b64 = 1;\n  }\n\n  query = parseqs.encode(query);\n\n  // prepend ? to query\n  if (query.length) {\n    query = '?' + query;\n  }\n\n  var ipv6 = this.hostname.indexOf(':') !== -1;\n  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;\n};\n\n/**\n * Feature detection for WebSocket.\n *\n * @return {Boolean} whether this transport is available.\n * @api public\n */\n\nWS.prototype.check = function () {\n  return !!WebSocket && !('__initialize' in WebSocket && this.name === WS.prototype.name);\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/websocket.js\n// module id = 33\n// module chunks = 0","/* (ignored) */\n\n\n//////////////////\n// WEBPACK FOOTER\n// ws (ignored)\n// module id = 34\n// module chunks = 0","\nvar indexOf = [].indexOf;\n\nmodule.exports = function(arr, obj){\n  if (indexOf) return arr.indexOf(obj);\n  for (var i = 0; i < arr.length; ++i) {\n    if (arr[i] === obj) return i;\n  }\n  return -1;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/indexof/index.js\n// module id = 35\n// module chunks = 0","\n/**\n * Module dependencies.\n */\n\nvar parser = require('socket.io-parser');\nvar Emitter = require('component-emitter');\nvar toArray = require('to-array');\nvar on = require('./on');\nvar bind = require('component-bind');\nvar debug = require('debug')('socket.io-client:socket');\nvar parseqs = require('parseqs');\nvar hasBin = require('has-binary2');\n\n/**\n * Module exports.\n */\n\nmodule.exports = exports = Socket;\n\n/**\n * Internal events (blacklisted).\n * These events can't be emitted by the user.\n *\n * @api private\n */\n\nvar events = {\n  connect: 1,\n  connect_error: 1,\n  connect_timeout: 1,\n  connecting: 1,\n  disconnect: 1,\n  error: 1,\n  reconnect: 1,\n  reconnect_attempt: 1,\n  reconnect_failed: 1,\n  reconnect_error: 1,\n  reconnecting: 1,\n  ping: 1,\n  pong: 1\n};\n\n/**\n * Shortcut to `Emitter#emit`.\n */\n\nvar emit = Emitter.prototype.emit;\n\n/**\n * `Socket` constructor.\n *\n * @api public\n */\n\nfunction Socket (io, nsp, opts) {\n  this.io = io;\n  this.nsp = nsp;\n  this.json = this; // compat\n  this.ids = 0;\n  this.acks = {};\n  this.receiveBuffer = [];\n  this.sendBuffer = [];\n  this.connected = false;\n  this.disconnected = true;\n  this.flags = {};\n  if (opts && opts.query) {\n    this.query = opts.query;\n  }\n  if (this.io.autoConnect) this.open();\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Socket.prototype);\n\n/**\n * Subscribe to open, close and packet events\n *\n * @api private\n */\n\nSocket.prototype.subEvents = function () {\n  if (this.subs) return;\n\n  var io = this.io;\n  this.subs = [\n    on(io, 'open', bind(this, 'onopen')),\n    on(io, 'packet', bind(this, 'onpacket')),\n    on(io, 'close', bind(this, 'onclose'))\n  ];\n};\n\n/**\n * \"Opens\" the socket.\n *\n * @api public\n */\n\nSocket.prototype.open =\nSocket.prototype.connect = function () {\n  if (this.connected) return this;\n\n  this.subEvents();\n  this.io.open(); // ensure open\n  if ('open' === this.io.readyState) this.onopen();\n  this.emit('connecting');\n  return this;\n};\n\n/**\n * Sends a `message` event.\n *\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.send = function () {\n  var args = toArray(arguments);\n  args.unshift('message');\n  this.emit.apply(this, args);\n  return this;\n};\n\n/**\n * Override `emit`.\n * If the event is in `events`, it's emitted normally.\n *\n * @param {String} event name\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.emit = function (ev) {\n  if (events.hasOwnProperty(ev)) {\n    emit.apply(this, arguments);\n    return this;\n  }\n\n  var args = toArray(arguments);\n  var packet = {\n    type: (this.flags.binary !== undefined ? this.flags.binary : hasBin(args)) ? parser.BINARY_EVENT : parser.EVENT,\n    data: args\n  };\n\n  packet.options = {};\n  packet.options.compress = !this.flags || false !== this.flags.compress;\n\n  // event ack callback\n  if ('function' === typeof args[args.length - 1]) {\n    debug('emitting packet with ack id %d', this.ids);\n    this.acks[this.ids] = args.pop();\n    packet.id = this.ids++;\n  }\n\n  if (this.connected) {\n    this.packet(packet);\n  } else {\n    this.sendBuffer.push(packet);\n  }\n\n  this.flags = {};\n\n  return this;\n};\n\n/**\n * Sends a packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.packet = function (packet) {\n  packet.nsp = this.nsp;\n  this.io.packet(packet);\n};\n\n/**\n * Called upon engine `open`.\n *\n * @api private\n */\n\nSocket.prototype.onopen = function () {\n  debug('transport is open - connecting');\n\n  // write connect packet if necessary\n  if ('/' !== this.nsp) {\n    if (this.query) {\n      var query = typeof this.query === 'object' ? parseqs.encode(this.query) : this.query;\n      debug('sending connect packet with query %s', query);\n      this.packet({type: parser.CONNECT, query: query});\n    } else {\n      this.packet({type: parser.CONNECT});\n    }\n  }\n};\n\n/**\n * Called upon engine `close`.\n *\n * @param {String} reason\n * @api private\n */\n\nSocket.prototype.onclose = function (reason) {\n  debug('close (%s)', reason);\n  this.connected = false;\n  this.disconnected = true;\n  delete this.id;\n  this.emit('disconnect', reason);\n};\n\n/**\n * Called with socket packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onpacket = function (packet) {\n  var sameNamespace = packet.nsp === this.nsp;\n  var rootNamespaceError = packet.type === parser.ERROR && packet.nsp === '/';\n\n  if (!sameNamespace && !rootNamespaceError) return;\n\n  switch (packet.type) {\n    case parser.CONNECT:\n      this.onconnect();\n      break;\n\n    case parser.EVENT:\n      this.onevent(packet);\n      break;\n\n    case parser.BINARY_EVENT:\n      this.onevent(packet);\n      break;\n\n    case parser.ACK:\n      this.onack(packet);\n      break;\n\n    case parser.BINARY_ACK:\n      this.onack(packet);\n      break;\n\n    case parser.DISCONNECT:\n      this.ondisconnect();\n      break;\n\n    case parser.ERROR:\n      this.emit('error', packet.data);\n      break;\n  }\n};\n\n/**\n * Called upon a server event.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onevent = function (packet) {\n  var args = packet.data || [];\n  debug('emitting event %j', args);\n\n  if (null != packet.id) {\n    debug('attaching ack callback to event');\n    args.push(this.ack(packet.id));\n  }\n\n  if (this.connected) {\n    emit.apply(this, args);\n  } else {\n    this.receiveBuffer.push(args);\n  }\n};\n\n/**\n * Produces an ack callback to emit with an event.\n *\n * @api private\n */\n\nSocket.prototype.ack = function (id) {\n  var self = this;\n  var sent = false;\n  return function () {\n    // prevent double callbacks\n    if (sent) return;\n    sent = true;\n    var args = toArray(arguments);\n    debug('sending ack %j', args);\n\n    self.packet({\n      type: hasBin(args) ? parser.BINARY_ACK : parser.ACK,\n      id: id,\n      data: args\n    });\n  };\n};\n\n/**\n * Called upon a server acknowlegement.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onack = function (packet) {\n  var ack = this.acks[packet.id];\n  if ('function' === typeof ack) {\n    debug('calling ack %s with %j', packet.id, packet.data);\n    ack.apply(this, packet.data);\n    delete this.acks[packet.id];\n  } else {\n    debug('bad ack %s', packet.id);\n  }\n};\n\n/**\n * Called upon server connect.\n *\n * @api private\n */\n\nSocket.prototype.onconnect = function () {\n  this.connected = true;\n  this.disconnected = false;\n  this.emit('connect');\n  this.emitBuffered();\n};\n\n/**\n * Emit buffered events (received and emitted).\n *\n * @api private\n */\n\nSocket.prototype.emitBuffered = function () {\n  var i;\n  for (i = 0; i < this.receiveBuffer.length; i++) {\n    emit.apply(this, this.receiveBuffer[i]);\n  }\n  this.receiveBuffer = [];\n\n  for (i = 0; i < this.sendBuffer.length; i++) {\n    this.packet(this.sendBuffer[i]);\n  }\n  this.sendBuffer = [];\n};\n\n/**\n * Called upon server disconnect.\n *\n * @api private\n */\n\nSocket.prototype.ondisconnect = function () {\n  debug('server disconnect (%s)', this.nsp);\n  this.destroy();\n  this.onclose('io server disconnect');\n};\n\n/**\n * Called upon forced client/server side disconnections,\n * this method ensures the manager stops tracking us and\n * that reconnections don't get triggered for this.\n *\n * @api private.\n */\n\nSocket.prototype.destroy = function () {\n  if (this.subs) {\n    // clean subscriptions to avoid reconnections\n    for (var i = 0; i < this.subs.length; i++) {\n      this.subs[i].destroy();\n    }\n    this.subs = null;\n  }\n\n  this.io.destroy(this);\n};\n\n/**\n * Disconnects the socket manually.\n *\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.close =\nSocket.prototype.disconnect = function () {\n  if (this.connected) {\n    debug('performing disconnect (%s)', this.nsp);\n    this.packet({ type: parser.DISCONNECT });\n  }\n\n  // remove socket from pool\n  this.destroy();\n\n  if (this.connected) {\n    // fire events\n    this.onclose('io client disconnect');\n  }\n  return this;\n};\n\n/**\n * Sets the compress flag.\n *\n * @param {Boolean} if `true`, compresses the sending data\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.compress = function (compress) {\n  this.flags.compress = compress;\n  return this;\n};\n\n/**\n * Sets the binary flag\n *\n * @param {Boolean} whether the emitted data contains binary\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.binary = function (binary) {\n  this.flags.binary = binary;\n  return this;\n};\n\n\n\n// WEBPACK FOOTER //\n// ./lib/socket.js","module.exports = toArray\n\nfunction toArray(list, index) {\n    var array = []\n\n    index = index || 0\n\n    for (var i = index || 0; i < list.length; i++) {\n        array[i - index] = list[i]\n    }\n\n    return array\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/to-array/index.js\n// module id = 37\n// module chunks = 0","\n/**\n * Module exports.\n */\n\nmodule.exports = on;\n\n/**\n * Helper for subscriptions.\n *\n * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`\n * @param {String} event name\n * @param {Function} callback\n * @api public\n */\n\nfunction on (obj, ev, fn) {\n  obj.on(ev, fn);\n  return {\n    destroy: function () {\n      obj.removeListener(ev, fn);\n    }\n  };\n}\n\n\n\n// WEBPACK FOOTER //\n// ./lib/on.js","/**\n * Slice reference.\n */\n\nvar slice = [].slice;\n\n/**\n * Bind `obj` to `fn`.\n *\n * @param {Object} obj\n * @param {Function|String} fn or string\n * @return {Function}\n * @api public\n */\n\nmodule.exports = function(obj, fn){\n  if ('string' == typeof fn) fn = obj[fn];\n  if ('function' != typeof fn) throw new Error('bind() requires a function');\n  var args = slice.call(arguments, 2);\n  return function(){\n    return fn.apply(obj, args.concat(slice.call(arguments)));\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/component-bind/index.js\n// module id = 39\n// module chunks = 0","\n/**\n * Expose `Backoff`.\n */\n\nmodule.exports = Backoff;\n\n/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\n\nfunction Backoff(opts) {\n  opts = opts || {};\n  this.ms = opts.min || 100;\n  this.max = opts.max || 10000;\n  this.factor = opts.factor || 2;\n  this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n  this.attempts = 0;\n}\n\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\n\nBackoff.prototype.duration = function(){\n  var ms = this.ms * Math.pow(this.factor, this.attempts++);\n  if (this.jitter) {\n    var rand =  Math.random();\n    var deviation = Math.floor(rand * this.jitter * ms);\n    ms = (Math.floor(rand * 10) & 1) == 0  ? ms - deviation : ms + deviation;\n  }\n  return Math.min(ms, this.max) | 0;\n};\n\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\n\nBackoff.prototype.reset = function(){\n  this.attempts = 0;\n};\n\n/**\n * Set the minimum duration\n *\n * @api public\n */\n\nBackoff.prototype.setMin = function(min){\n  this.ms = min;\n};\n\n/**\n * Set the maximum duration\n *\n * @api public\n */\n\nBackoff.prototype.setMax = function(max){\n  this.max = max;\n};\n\n/**\n * Set the jitter\n *\n * @api public\n */\n\nBackoff.prototype.setJitter = function(jitter){\n  this.jitter = jitter;\n};\n\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/backo2/index.js\n// module id = 40\n// module chunks = 0"],"sourceRoot":""}
\ No newline at end of file
diff --git a/helloworld/node_modules/socket.io-client/dist/socket.io.js b/helloworld/node_modules/socket.io-client/dist/socket.io.js
new file mode 100755
index 0000000..d3e3950
--- /dev/null
+++ b/helloworld/node_modules/socket.io-client/dist/socket.io.js
@@ -0,0 +1,9 @@
+/*!
+ * Socket.IO v2.2.0
+ * (c) 2014-2018 Guillermo Rauch
+ * Released under the MIT License.
+ */
+!function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):"object"==typeof exports?exports.io=e():t.io=e()}(this,function(){return function(t){function e(r){if(n[r])return n[r].exports;var o=n[r]={exports:{},id:r,loaded:!1};return t[r].call(o.exports,o,o.exports,e),o.loaded=!0,o.exports}var n={};return e.m=t,e.c=n,e.p="",e(0)}([function(t,e,n){"use strict";function r(t,e){"object"===("undefined"==typeof t?"undefined":o(t))&&(e=t,t=void 0),e=e||{};var n,r=i(t),s=r.source,u=r.id,h=r.path,f=p[u]&&h in p[u].nsps,l=e.forceNew||e["force new connection"]||!1===e.multiplex||f;return l?(c("ignoring socket cache for %s",s),n=a(s,e)):(p[u]||(c("new io instance for %s",s),p[u]=a(s,e)),n=p[u]),r.query&&!e.query&&(e.query=r.query),n.socket(r.path,e)}var o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof 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0===e.rejectUnauthorized||e.rejectUnauthorized,this.forceNode=!!e.forceNode,this.isReactNative="undefined"!=typeof navigator&&"string"==typeof navigator.product&&"reactnative"===navigator.product.toLowerCase(),("undefined"==typeof self||this.isReactNative)&&(e.extraHeaders&&Object.keys(e.extraHeaders).length>0&&(this.extraHeaders=e.extraHeaders),e.localAddress&&(this.localAddress=e.localAddress)),this.id=null,this.upgrades=null,this.pingInterval=null,this.pingTimeout=null,this.pingIntervalTimer=null,this.pingTimeoutTimer=null,void this.open()):new r(t,e)}function o(t){var e={};for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n]);return e}var i=n(15),s=n(8),a=n(3)("engine.io-client:socket"),c=n(35),p=n(21),u=n(2),h=n(29);t.exports=r,r.priorWebsocketSuccess=!1,s(r.prototype),r.protocol=p.protocol,r.Socket=r,r.Transport=n(20),r.transports=n(15),r.parser=n(21),r.prototype.createTransport=function(t){a('creating transport "%s"',t);var e=o(this.query);e.EIO=p.protocol,e.transport=t;var n=this.transportOptions[t]||{};this.id&&(e.sid=this.id);var r=new i[t]({query:e,socket:this,agent:n.agent||this.agent,hostname:n.hostname||this.hostname,port:n.port||this.port,secure:n.secure||this.secure,path:n.path||this.path,forceJSONP:n.forceJSONP||this.forceJSONP,jsonp:n.jsonp||this.jsonp,forceBase64:n.forceBase64||this.forceBase64,enablesXDR:n.enablesXDR||this.enablesXDR,timestampRequests:n.timestampRequests||this.timestampRequests,timestampParam:n.timestampParam||this.timestampParam,policyPort:n.policyPort||this.policyPort,pfx:n.pfx||this.pfx,key:n.key||this.key,passphrase:n.passphrase||this.passphrase,cert:n.cert||this.cert,ca:n.ca||this.ca,ciphers:n.ciphers||this.ciphers,rejectUnauthorized:n.rejectUnauthorized||this.rejectUnauthorized,perMessageDeflate:n.perMessageDeflate||this.perMessageDeflate,extraHeaders:n.extraHeaders||this.extraHeaders,forceNode:n.forceNode||this.forceNode,localAddress:n.localAddress||this.localAddress,requestTimeout:n.requestTimeout||this.requestTimeout,protocols:n.protocols||void 0,isReactNative:this.isReactNative});return r},r.prototype.open=function(){var t;if(this.rememberUpgrade&&r.priorWebsocketSuccess&&this.transports.indexOf("websocket")!==-1)t="websocket";else{if(0===this.transports.length){var e=this;return void setTimeout(function(){e.emit("error","No transports available")},0)}t=this.transports[0]}this.readyState="opening";try{t=this.createTransport(t)}catch(n){return this.transports.shift(),void this.open()}t.open(),this.setTransport(t)},r.prototype.setTransport=function(t){a("setting transport %s",t.name);var e=this;this.transport&&(a("clearing existing transport %s",this.transport.name),this.transport.removeAllListeners()),this.transport=t,t.on("drain",function(){e.onDrain()}).on("packet",function(t){e.onPacket(t)}).on("error",function(t){e.onError(t)}).on("close",function(){e.onClose("transport close")})},r.prototype.probe=function(t){function e(){if(f.onlyBinaryUpgrades){var e=!this.supportsBinary&&f.transport.supportsBinary;h=h||e}h||(a('probe transport "%s" opened',t),u.send([{type:"ping",data:"probe"}]),u.once("packet",function(e){if(!h)if("pong"===e.type&&"probe"===e.data){if(a('probe transport "%s" pong',t),f.upgrading=!0,f.emit("upgrading",u),!u)return;r.priorWebsocketSuccess="websocket"===u.name,a('pausing current transport "%s"',f.transport.name),f.transport.pause(function(){h||"closed"!==f.readyState&&(a("changing transport and sending upgrade packet"),p(),f.setTransport(u),u.send([{type:"upgrade"}]),f.emit("upgrade",u),u=null,f.upgrading=!1,f.flush())})}else{a('probe transport "%s" failed',t);var n=new Error("probe error");n.transport=u.name,f.emit("upgradeError",n)}}))}function n(){h||(h=!0,p(),u.close(),u=null)}function o(e){var r=new Error("probe error: "+e);r.transport=u.name,n(),a('probe transport "%s" failed because of error: %s',t,e),f.emit("upgradeError",r)}function i(){o("transport closed")}function s(){o("socket closed")}function c(t){u&&t.name!==u.name&&(a('"%s" works - aborting 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"%s"',t.type,t.data),this.emit("packet",t),this.emit("heartbeat"),t.type){case"open":this.onHandshake(JSON.parse(t.data));break;case"pong":this.setPing(),this.emit("pong");break;case"error":var e=new Error("server error");e.code=t.data,this.onError(e);break;case"message":this.emit("data",t.data),this.emit("message",t.data)}else a('packet received with socket readyState "%s"',this.readyState)},r.prototype.onHandshake=function(t){this.emit("handshake",t),this.id=t.sid,this.transport.query.sid=t.sid,this.upgrades=this.filterUpgrades(t.upgrades),this.pingInterval=t.pingInterval,this.pingTimeout=t.pingTimeout,this.onOpen(),"closed"!==this.readyState&&(this.setPing(),this.removeListener("heartbeat",this.onHeartbeat),this.on("heartbeat",this.onHeartbeat))},r.prototype.onHeartbeat=function(t){clearTimeout(this.pingTimeoutTimer);var e=this;e.pingTimeoutTimer=setTimeout(function(){"closed"!==e.readyState&&e.onClose("ping timeout")},t||e.pingInterval+e.pingTimeout)},r.prototype.setPing=function(){var t=this;clearTimeout(t.pingIntervalTimer),t.pingIntervalTimer=setTimeout(function(){a("writing ping packet - expecting pong within %sms",t.pingTimeout),t.ping(),t.onHeartbeat(t.pingTimeout)},t.pingInterval)},r.prototype.ping=function(){var t=this;this.sendPacket("ping",function(){t.emit("ping")})},r.prototype.onDrain=function(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,0===this.writeBuffer.length?this.emit("drain"):this.flush()},r.prototype.flush=function(){"closed"!==this.readyState&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length&&(a("flushing %d packets in socket",this.writeBuffer.length),this.transport.send(this.writeBuffer),this.prevBufferLen=this.writeBuffer.length,this.emit("flush"))},r.prototype.write=r.prototype.send=function(t,e,n){return this.sendPacket("message",t,e,n),this},r.prototype.sendPacket=function(t,e,n,r){if("function"==typeof e&&(r=e,e=void 0),"function"==typeof n&&(r=n,n=null),"closing"!==this.readyState&&"closed"!==this.readyState){n=n||{},n.compress=!1!==n.compress;var o={type:t,data:e,options:n};this.emit("packetCreate",o),this.writeBuffer.push(o),r&&this.once("flush",r),this.flush()}},r.prototype.close=function(){function t(){r.onClose("forced close"),a("socket closing - telling transport to close"),r.transport.close()}function e(){r.removeListener("upgrade",e),r.removeListener("upgradeError",e),t()}function n(){r.once("upgrade",e),r.once("upgradeError",e)}if("opening"===this.readyState||"open"===this.readyState){this.readyState="closing";var r=this;this.writeBuffer.length?this.once("drain",function(){this.upgrading?n():t()}):this.upgrading?n():t()}return this},r.prototype.onError=function(t){a("socket error %j",t),r.priorWebsocketSuccess=!1,this.emit("error",t),this.onClose("transport error",t)},r.prototype.onClose=function(t,e){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState){a('socket close with reason: "%s"',t);var n=this;clearTimeout(this.pingIntervalTimer),clearTimeout(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),this.readyState="closed",this.id=null,this.emit("close",t,e),n.writeBuffer=[],n.prevBufferLen=0}},r.prototype.filterUpgrades=function(t){for(var e=[],n=0,r=t.length;n<r;n++)~c(this.transports,t[n])&&e.push(t[n]);return e}},function(t,e,n){function r(t){var e,n=!1,r=!1,a=!1!==t.jsonp;
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o(t){if(c.call(this,t),this.requestTimeout=t.requestTimeout,this.extraHeaders=t.extraHeaders,"undefined"!=typeof location){var e="https:"===location.protocol,n=location.port;n||(n=e?443:80),this.xd="undefined"!=typeof location&&t.hostname!==location.hostname||n!==t.port,this.xs=t.secure!==e}}function i(t){this.method=t.method||"GET",this.uri=t.uri,this.xd=!!t.xd,this.xs=!!t.xs,this.async=!1!==t.async,this.data=void 0!==t.data?t.data:null,this.agent=t.agent,this.isBinary=t.isBinary,this.supportsBinary=t.supportsBinary,this.enablesXDR=t.enablesXDR,this.requestTimeout=t.requestTimeout,this.pfx=t.pfx,this.key=t.key,this.passphrase=t.passphrase,this.cert=t.cert,this.ca=t.ca,this.ciphers=t.ciphers,this.rejectUnauthorized=t.rejectUnauthorized,this.extraHeaders=t.extraHeaders,this.create()}function s(){for(var t in i.requests)i.requests.hasOwnProperty(t)&&i.requests[t].abort()}var a=n(16),c=n(19),p=n(8),u=n(30),h=n(3)("engine.io-client:polling-xhr");if(t.exports=o,t.exports.Request=i,u(o,c),o.prototype.supportsBinary=!0,o.prototype.request=function(t){return t=t||{},t.uri=this.uri(),t.xd=this.xd,t.xs=this.xs,t.agent=this.agent||!1,t.supportsBinary=this.supportsBinary,t.enablesXDR=this.enablesXDR,t.pfx=this.pfx,t.key=this.key,t.passphrase=this.passphrase,t.cert=this.cert,t.ca=this.ca,t.ciphers=this.ciphers,t.rejectUnauthorized=this.rejectUnauthorized,t.requestTimeout=this.requestTimeout,t.extraHeaders=this.extraHeaders,new i(t)},o.prototype.doWrite=function(t,e){var n="string"!=typeof t&&void 0!==t,r=this.request({method:"POST",data:t,isBinary:n}),o=this;r.on("success",e),r.on("error",function(t){o.onError("xhr post error",t)}),this.sendXhr=r},o.prototype.doPoll=function(){h("xhr poll");var t=this.request(),e=this;t.on("data",function(t){e.onData(t)}),t.on("error",function(t){e.onError("xhr poll error",t)}),this.pollXhr=t},p(i.prototype),i.prototype.create=function(){var t={agent:this.agent,xdomain:this.xd,xscheme:this.xs,enablesXDR:this.enablesXDR};t.pfx=this.pfx,t.key=this.key,t.passphrase=this.passphrase,t.cert=this.cert,t.ca=this.ca,t.ciphers=this.ciphers,t.rejectUnauthorized=this.rejectUnauthorized;var e=this.xhr=new a(t),n=this;try{h("xhr open %s: %s",this.method,this.uri),e.open(this.method,this.uri,this.async);try{if(this.extraHeaders){e.setDisableHeaderCheck&&e.setDisableHeaderCheck(!0);for(var r in this.extraHeaders)this.extraHeaders.hasOwnProperty(r)&&e.setRequestHeader(r,this.extraHeaders[r])}}catch(o){}if("POST"===this.method)try{this.isBinary?e.setRequestHeader("Content-type","application/octet-stream"):e.setRequestHeader("Content-type","text/plain;charset=UTF-8")}catch(o){}try{e.setRequestHeader("Accept","*/*")}catch(o){}"withCredentials"in e&&(e.withCredentials=!0),this.requestTimeout&&(e.timeout=this.requestTimeout),this.hasXDR()?(e.onload=function(){n.onLoad()},e.onerror=function(){n.onError(e.responseText)}):e.onreadystatechange=function(){if(2===e.readyState)try{var t=e.getResponseHeader("Content-Type");n.supportsBinary&&"application/octet-stream"===t&&(e.responseType="arraybuffer")}catch(r){}4===e.readyState&&(200===e.status||1223===e.status?n.onLoad():setTimeout(function(){n.onError(e.status)},0))},h("xhr data %s",this.data),e.send(this.data)}catch(o){return void setTimeout(function(){n.onError(o)},0)}"undefined"!=typeof document&&(this.index=i.requestsCount++,i.requests[this.index]=this)},i.prototype.onSuccess=function(){this.emit("success"),this.cleanup()},i.prototype.onData=function(t){this.emit("data",t),this.onSuccess()},i.prototype.onError=function(t){this.emit("error",t),this.cleanup(!0)},i.prototype.cleanup=function(t){if("undefined"!=typeof this.xhr&&null!==this.xhr){if(this.hasXDR()?this.xhr.onload=this.xhr.onerror=r:this.xhr.onreadystatechange=r,t)try{this.xhr.abort()}catch(e){}"undefined"!=typeof document&&delete i.requests[this.index],this.xhr=null}},i.prototype.onLoad=function(){var t;try{var e;try{e=this.xhr.getResponseHeader("Content-Type")}catch(n){}t="application/octet-stream"===e?this.xhr.response||this.xhr.responseText:this.xhr.responseText}catch(n){this.onError(n)}null!=t&&this.onData(t)},i.prototype.hasXDR=function(){return"undefined"!=typeof XDomainRequest&&!this.xs&&this.enablesXDR},i.prototype.abort=function(){this.cleanup()},i.requestsCount=0,i.requests={},"undefined"!=typeof document)if("function"==typeof attachEvent)attachEvent("onunload",s);else if("function"==typeof addEventListener){var f="onpagehide"in self?"pagehide":"unload";addEventListener(f,s,!1)}},function(t,e,n){function r(t){var e=t&&t.forceBase64;u&&!e||(this.supportsBinary=!1),o.call(this,t)}var o=n(20),i=n(29),s=n(21),a=n(30),c=n(31),p=n(3)("engine.io-client:polling");t.exports=r;var u=function(){var t=n(16),e=new t({xdomain:!1});return null!=e.responseType}();a(r,o),r.prototype.name="polling",r.prototype.doOpen=function(){this.poll()},r.prototype.pause=function(t){function e(){p("paused"),n.readyState="paused",t()}var n=this;if(this.readyState="pausing",this.polling||!this.writable){var r=0;this.polling&&(p("we are currently polling - waiting to pause"),r++,this.once("pollComplete",function(){p("pre-pause polling complete"),--r||e()})),this.writable||(p("we are currently writing - waiting to pause"),r++,this.once("drain",function(){p("pre-pause writing complete"),--r||e()}))}else e()},r.prototype.poll=function(){p("polling"),this.polling=!0,this.doPoll(),this.emit("poll")},r.prototype.onData=function(t){var e=this;p("polling got data %s",t);var n=function(t,n,r){return"opening"===e.readyState&&e.onOpen(),"close"===t.type?(e.onClose(),!1):void e.onPacket(t)};s.decodePayload(t,this.socket.binaryType,n),"closed"!==this.readyState&&(this.polling=!1,this.emit("pollComplete"),"open"===this.readyState?this.poll():p('ignoring poll - transport state "%s"',this.readyState))},r.prototype.doClose=function(){function t(){p("writing close packet"),e.write([{type:"close"}])}var e=this;"open"===this.readyState?(p("transport open - closing"),t()):(p("transport not open - deferring close"),this.once("open",t))},r.prototype.write=function(t){var e=this;this.writable=!1;var n=function(){e.writable=!0,e.emit("drain")};s.encodePayload(t,this.supportsBinary,function(t){e.doWrite(t,n)})},r.prototype.uri=function(){var t=this.query||{},e=this.secure?"https":"http",n="";!1!==this.timestampRequests&&(t[this.timestampParam]=c()),this.supportsBinary||t.sid||(t.b64=1),t=i.encode(t),this.port&&("https"===e&&443!==Number(this.port)||"http"===e&&80!==Number(this.port))&&(n=":"+this.port),t.length&&(t="?"+t);var r=this.hostname.indexOf(":")!==-1;return e+"://"+(r?"["+this.hostname+"]":this.hostname)+n+this.path+t}},function(t,e,n){function r(t){this.path=t.path,this.hostname=t.hostname,this.port=t.port,this.secure=t.secure,this.query=t.query,this.timestampParam=t.timestampParam,this.timestampRequests=t.timestampRequests,this.readyState="",this.agent=t.agent||!1,this.socket=t.socket,this.enablesXDR=t.enablesXDR,this.pfx=t.pfx,this.key=t.key,this.passphrase=t.passphrase,this.cert=t.cert,this.ca=t.ca,this.ciphers=t.ciphers,this.rejectUnauthorized=t.rejectUnauthorized,this.forceNode=t.forceNode,this.isReactNative=t.isReactNative,this.extraHeaders=t.extraHeaders,this.localAddress=t.localAddress}var o=n(21),i=n(8);t.exports=r,i(r.prototype),r.prototype.onError=function(t,e){var n=new Error(t);return n.type="TransportError",n.description=e,this.emit("error",n),this},r.prototype.open=function(){return"closed"!==this.readyState&&""!==this.readyState||(this.readyState="opening",this.doOpen()),this},r.prototype.close=function(){return"opening"!==this.readyState&&"open"!==this.readyState||(this.doClose(),this.onClose()),this},r.prototype.send=function(t){if("open"!==this.readyState)throw new Error("Transport not open");this.write(t)},r.prototype.onOpen=function(){this.readyState="open",this.writable=!0,this.emit("open")},r.prototype.onData=function(t){var e=o.decodePacket(t,this.socket.binaryType);this.onPacket(e)},r.prototype.onPacket=function(t){this.emit("packet",t)},r.prototype.onClose=function(){this.readyState="closed",this.emit("close")}},function(t,e,n){function r(t,n){var r="b"+e.packets[t.type]+t.data.data;return n(r)}function o(t,n,r){if(!n)return e.encodeBase64Packet(t,r);var o=t.data,i=new Uint8Array(o),s=new Uint8Array(1+o.byteLength);s[0]=v[t.type];for(var 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+//# sourceMappingURL=socket.io.js.map
\ No newline at end of file
diff --git a/helloworld/node_modules/socket.io-client/dist/socket.io.js.map b/helloworld/node_modules/socket.io-client/dist/socket.io.js.map
new file mode 100755
index 0000000..15a248d
--- /dev/null
+++ b/helloworld/node_modules/socket.io-client/dist/socket.io.js.map
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= exports = lookup;\n\t\n\t/**\n\t * Managers cache.\n\t */\n\t\n\tvar cache = exports.managers = {};\n\t\n\t/**\n\t * Looks up an existing `Manager` for multiplexing.\n\t * If the user summons:\n\t *\n\t *   `io('http://localhost/a');`\n\t *   `io('http://localhost/b');`\n\t *\n\t * We reuse the existing instance based on same scheme/port/host,\n\t * and we initialize sockets for each namespace.\n\t *\n\t * @api public\n\t */\n\t\n\tfunction lookup(uri, opts) {\n\t  if ((typeof uri === 'undefined' ? 'undefined' : _typeof(uri)) === 'object') {\n\t    opts = uri;\n\t    uri = undefined;\n\t  }\n\t\n\t  opts = opts || {};\n\t\n\t  var parsed = url(uri);\n\t  var source = parsed.source;\n\t  var id = parsed.id;\n\t  var path = parsed.path;\n\t  var sameNamespace = cache[id] && path in cache[id].nsps;\n\t  var newConnection = opts.forceNew || opts['force new connection'] || false === opts.multiplex || sameNamespace;\n\t\n\t  var io;\n\t\n\t  if (newConnection) {\n\t    debug('ignoring socket cache for %s', source);\n\t    io = Manager(source, opts);\n\t  } else {\n\t    if (!cache[id]) {\n\t      debug('new io instance for %s', source);\n\t      cache[id] = Manager(source, opts);\n\t    }\n\t    io = cache[id];\n\t  }\n\t  if (parsed.query && !opts.query) {\n\t    opts.query = parsed.query;\n\t  }\n\t  return io.socket(parsed.path, opts);\n\t}\n\t\n\t/**\n\t * Protocol version.\n\t *\n\t * @api public\n\t */\n\t\n\texports.protocol = parser.protocol;\n\t\n\t/**\n\t * `connect`.\n\t *\n\t * @param {String} uri\n\t * @api public\n\t */\n\t\n\texports.connect = lookup;\n\t\n\t/**\n\t * Expose constructors for standalone build.\n\t *\n\t * @api public\n\t */\n\t\n\texports.Manager = __webpack_require__(12);\n\texports.Socket = __webpack_require__(36);\n\n/***/ }),\n/* 1 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar parseuri = __webpack_require__(2);\n\tvar debug = __webpack_require__(3)('socket.io-client:url');\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = url;\n\t\n\t/**\n\t * URL parser.\n\t *\n\t * @param {String} url\n\t * @param {Object} An object meant to mimic window.location.\n\t *                 Defaults to window.location.\n\t * @api public\n\t */\n\t\n\tfunction url(uri, loc) {\n\t  var obj = uri;\n\t\n\t  // default to window.location\n\t  loc = loc || typeof location !== 'undefined' && location;\n\t  if (null == uri) uri = loc.protocol + '//' + loc.host;\n\t\n\t  // relative path support\n\t  if ('string' === typeof uri) {\n\t    if ('/' === uri.charAt(0)) {\n\t      if ('/' === uri.charAt(1)) {\n\t        uri = loc.protocol + uri;\n\t      } else {\n\t        uri = loc.host + uri;\n\t      }\n\t    }\n\t\n\t    if (!/^(https?|wss?):\\/\\//.test(uri)) {\n\t      debug('protocol-less url %s', uri);\n\t      if ('undefined' !== typeof loc) {\n\t        uri = loc.protocol + '//' + uri;\n\t      } else {\n\t        uri = 'https://' + uri;\n\t      }\n\t    }\n\t\n\t    // parse\n\t    debug('parse %s', uri);\n\t    obj = parseuri(uri);\n\t  }\n\t\n\t  // make sure we treat `localhost:80` and `localhost` equally\n\t  if (!obj.port) {\n\t    if (/^(http|ws)$/.test(obj.protocol)) {\n\t      obj.port = '80';\n\t    } else if (/^(http|ws)s$/.test(obj.protocol)) {\n\t      obj.port = '443';\n\t    }\n\t  }\n\t\n\t  obj.path = obj.path || '/';\n\t\n\t  var ipv6 = obj.host.indexOf(':') !== -1;\n\t  var host = ipv6 ? '[' + obj.host + ']' : obj.host;\n\t\n\t  // define unique id\n\t  obj.id = obj.protocol + '://' + host + ':' + obj.port;\n\t  // define href\n\t  obj.href = obj.protocol + '://' + host + (loc && loc.port === obj.port ? '' : ':' + obj.port);\n\t\n\t  return obj;\n\t}\n\n/***/ }),\n/* 2 */\n/***/ (function(module, exports) {\n\n\t/**\r\n\t * Parses an URI\r\n\t *\r\n\t * @author Steven Levithan <stevenlevithan.com> (MIT license)\r\n\t * @api private\r\n\t */\r\n\t\r\n\tvar re = /^(?:(?![^:@]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\r\n\t\r\n\tvar parts = [\r\n\t    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\r\n\t];\r\n\t\r\n\tmodule.exports = function parseuri(str) {\r\n\t    var src = str,\r\n\t        b = str.indexOf('['),\r\n\t        e = str.indexOf(']');\r\n\t\r\n\t    if (b != -1 && e != -1) {\r\n\t        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\r\n\t    }\r\n\t\r\n\t    var m = re.exec(str || ''),\r\n\t        uri = {},\r\n\t        i = 14;\r\n\t\r\n\t    while (i--) {\r\n\t        uri[parts[i]] = m[i] || '';\r\n\t    }\r\n\t\r\n\t    if (b != -1 && e != -1) {\r\n\t        uri.source = src;\r\n\t        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\r\n\t        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\r\n\t        uri.ipv6uri = true;\r\n\t    }\r\n\t\r\n\t    return uri;\r\n\t};\r\n\n\n/***/ }),\n/* 3 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/* WEBPACK VAR INJECTION */(function(process) {/**\n\t * This is the web browser implementation of `debug()`.\n\t *\n\t * Expose `debug()` as the module.\n\t */\n\t\n\texports = module.exports = __webpack_require__(5);\n\texports.log = log;\n\texports.formatArgs = formatArgs;\n\texports.save = save;\n\texports.load = load;\n\texports.useColors = useColors;\n\texports.storage = 'undefined' != typeof chrome\n\t               && 'undefined' != typeof chrome.storage\n\t                  ? chrome.storage.local\n\t                  : localstorage();\n\t\n\t/**\n\t * Colors.\n\t */\n\t\n\texports.colors = [\n\t  '#0000CC', '#0000FF', '#0033CC', '#0033FF', '#0066CC', '#0066FF', '#0099CC',\n\t  '#0099FF', '#00CC00', '#00CC33', '#00CC66', '#00CC99', '#00CCCC', '#00CCFF',\n\t  '#3300CC', '#3300FF', '#3333CC', '#3333FF', '#3366CC', '#3366FF', '#3399CC',\n\t  '#3399FF', '#33CC00', '#33CC33', '#33CC66', '#33CC99', '#33CCCC', '#33CCFF',\n\t  '#6600CC', '#6600FF', '#6633CC', '#6633FF', '#66CC00', '#66CC33', '#9900CC',\n\t  '#9900FF', '#9933CC', '#9933FF', '#99CC00', '#99CC33', '#CC0000', '#CC0033',\n\t  '#CC0066', '#CC0099', '#CC00CC', '#CC00FF', '#CC3300', '#CC3333', '#CC3366',\n\t  '#CC3399', '#CC33CC', '#CC33FF', '#CC6600', '#CC6633', '#CC9900', '#CC9933',\n\t  '#CCCC00', '#CCCC33', '#FF0000', '#FF0033', '#FF0066', '#FF0099', '#FF00CC',\n\t  '#FF00FF', '#FF3300', '#FF3333', '#FF3366', '#FF3399', '#FF33CC', '#FF33FF',\n\t  '#FF6600', '#FF6633', '#FF9900', '#FF9933', '#FFCC00', '#FFCC33'\n\t];\n\t\n\t/**\n\t * Currently only WebKit-based Web Inspectors, Firefox >= v31,\n\t * and the Firebug extension (any Firefox version) are known\n\t * to support \"%c\" CSS customizations.\n\t *\n\t * TODO: add a `localStorage` variable to explicitly enable/disable colors\n\t */\n\t\n\tfunction useColors() {\n\t  // NB: In an Electron preload script, document will be defined but not fully\n\t  // initialized. Since we know we're in Chrome, we'll just detect this case\n\t  // explicitly\n\t  if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {\n\t    return true;\n\t  }\n\t\n\t  // Internet Explorer and Edge do not support colors.\n\t  if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\\/(\\d+)/)) {\n\t    return false;\n\t  }\n\t\n\t  // is webkit? http://stackoverflow.com/a/16459606/376773\n\t  // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632\n\t  return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||\n\t    // is firebug? http://stackoverflow.com/a/398120/376773\n\t    (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||\n\t    // is firefox >= v31?\n\t    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages\n\t    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\\/(\\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||\n\t    // double check webkit in userAgent just in case we are in a worker\n\t    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\\/(\\d+)/));\n\t}\n\t\n\t/**\n\t * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.\n\t */\n\t\n\texports.formatters.j = function(v) {\n\t  try {\n\t    return JSON.stringify(v);\n\t  } catch (err) {\n\t    return '[UnexpectedJSONParseError]: ' + err.message;\n\t  }\n\t};\n\t\n\t\n\t/**\n\t * Colorize log arguments if enabled.\n\t *\n\t * @api public\n\t */\n\t\n\tfunction formatArgs(args) {\n\t  var useColors = this.useColors;\n\t\n\t  args[0] = (useColors ? '%c' : '')\n\t    + this.namespace\n\t    + (useColors ? ' %c' : ' ')\n\t    + args[0]\n\t    + (useColors ? '%c ' : ' ')\n\t    + '+' + exports.humanize(this.diff);\n\t\n\t  if (!useColors) return;\n\t\n\t  var c = 'color: ' + this.color;\n\t  args.splice(1, 0, c, 'color: inherit')\n\t\n\t  // the final \"%c\" is somewhat tricky, because there could be other\n\t  // arguments passed either before or after the %c, so we need to\n\t  // figure out the correct index to insert the CSS into\n\t  var index = 0;\n\t  var lastC = 0;\n\t  args[0].replace(/%[a-zA-Z%]/g, function(match) {\n\t    if ('%%' === match) return;\n\t    index++;\n\t    if ('%c' === match) {\n\t      // we only are interested in the *last* %c\n\t      // (the user may have provided their own)\n\t      lastC = index;\n\t    }\n\t  });\n\t\n\t  args.splice(lastC, 0, c);\n\t}\n\t\n\t/**\n\t * Invokes `console.log()` when available.\n\t * No-op when `console.log` is not a \"function\".\n\t *\n\t * @api public\n\t */\n\t\n\tfunction log() {\n\t  // this hackery is required for IE8/9, where\n\t  // the `console.log` function doesn't have 'apply'\n\t  return 'object' === typeof console\n\t    && console.log\n\t    && Function.prototype.apply.call(console.log, console, arguments);\n\t}\n\t\n\t/**\n\t * Save `namespaces`.\n\t *\n\t * @param {String} namespaces\n\t * @api private\n\t */\n\t\n\tfunction save(namespaces) {\n\t  try {\n\t    if (null == namespaces) {\n\t      exports.storage.removeItem('debug');\n\t    } else {\n\t      exports.storage.debug = namespaces;\n\t    }\n\t  } catch(e) {}\n\t}\n\t\n\t/**\n\t * Load `namespaces`.\n\t *\n\t * @return {String} returns the previously persisted debug modes\n\t * @api private\n\t */\n\t\n\tfunction load() {\n\t  var r;\n\t  try {\n\t    r = exports.storage.debug;\n\t  } catch(e) {}\n\t\n\t  // If debug isn't set in LS, and we're in Electron, try to load $DEBUG\n\t  if (!r && typeof process !== 'undefined' && 'env' in process) {\n\t    r = process.env.DEBUG;\n\t  }\n\t\n\t  return r;\n\t}\n\t\n\t/**\n\t * Enable namespaces listed in `localStorage.debug` initially.\n\t */\n\t\n\texports.enable(load());\n\t\n\t/**\n\t * Localstorage attempts to return the localstorage.\n\t *\n\t * This is necessary because safari throws\n\t * when a user disables cookies/localstorage\n\t * and you attempt to access it.\n\t *\n\t * @return {LocalStorage}\n\t * @api private\n\t */\n\t\n\tfunction localstorage() {\n\t  try {\n\t    return window.localStorage;\n\t  } catch (e) {}\n\t}\n\t\n\t/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(4)))\n\n/***/ }),\n/* 4 */\n/***/ (function(module, exports) {\n\n\t// shim for using process in browser\n\tvar process = module.exports = {};\n\t\n\t// cached from whatever global is present so that test runners that stub it\n\t// don't break things.  But we need to wrap it in a try catch in case it is\n\t// wrapped in strict mode code which doesn't define any globals.  It's inside a\n\t// function because try/catches deoptimize in certain engines.\n\t\n\tvar cachedSetTimeout;\n\tvar cachedClearTimeout;\n\t\n\tfunction defaultSetTimout() {\n\t    throw new Error('setTimeout has not been defined');\n\t}\n\tfunction defaultClearTimeout () {\n\t    throw new Error('clearTimeout has not been defined');\n\t}\n\t(function () {\n\t    try {\n\t        if (typeof setTimeout === 'function') {\n\t            cachedSetTimeout = setTimeout;\n\t        } else {\n\t            cachedSetTimeout = defaultSetTimout;\n\t        }\n\t    } catch (e) {\n\t        cachedSetTimeout = defaultSetTimout;\n\t    }\n\t    try {\n\t        if (typeof clearTimeout === 'function') {\n\t            cachedClearTimeout = clearTimeout;\n\t        } else {\n\t            cachedClearTimeout = defaultClearTimeout;\n\t        }\n\t    } catch (e) {\n\t        cachedClearTimeout = defaultClearTimeout;\n\t    }\n\t} ())\n\tfunction runTimeout(fun) {\n\t    if (cachedSetTimeout === setTimeout) {\n\t        //normal enviroments in sane situations\n\t        return setTimeout(fun, 0);\n\t    }\n\t    // if setTimeout wasn't available but was latter defined\n\t    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {\n\t        cachedSetTimeout = setTimeout;\n\t        return setTimeout(fun, 0);\n\t    }\n\t    try {\n\t        // when when somebody has screwed with setTimeout but no I.E. maddness\n\t        return cachedSetTimeout(fun, 0);\n\t    } catch(e){\n\t        try {\n\t            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally\n\t            return cachedSetTimeout.call(null, fun, 0);\n\t        } catch(e){\n\t            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error\n\t            return cachedSetTimeout.call(this, fun, 0);\n\t        }\n\t    }\n\t\n\t\n\t}\n\tfunction runClearTimeout(marker) {\n\t    if (cachedClearTimeout === clearTimeout) {\n\t        //normal enviroments in sane situations\n\t        return clearTimeout(marker);\n\t    }\n\t    // if clearTimeout wasn't available but was latter defined\n\t    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {\n\t        cachedClearTimeout = clearTimeout;\n\t        return clearTimeout(marker);\n\t    }\n\t    try {\n\t        // when when somebody has screwed with setTimeout but no I.E. maddness\n\t        return cachedClearTimeout(marker);\n\t    } catch (e){\n\t        try {\n\t            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally\n\t            return cachedClearTimeout.call(null, marker);\n\t        } catch (e){\n\t            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.\n\t            // Some versions of I.E. have different rules for clearTimeout vs setTimeout\n\t            return cachedClearTimeout.call(this, marker);\n\t        }\n\t    }\n\t\n\t\n\t\n\t}\n\tvar queue = [];\n\tvar draining = false;\n\tvar currentQueue;\n\tvar queueIndex = -1;\n\t\n\tfunction cleanUpNextTick() {\n\t    if (!draining || !currentQueue) {\n\t        return;\n\t    }\n\t    draining = false;\n\t    if (currentQueue.length) {\n\t        queue = currentQueue.concat(queue);\n\t    } else {\n\t        queueIndex = -1;\n\t    }\n\t    if (queue.length) {\n\t        drainQueue();\n\t    }\n\t}\n\t\n\tfunction drainQueue() {\n\t    if (draining) {\n\t        return;\n\t    }\n\t    var timeout = runTimeout(cleanUpNextTick);\n\t    draining = true;\n\t\n\t    var len = queue.length;\n\t    while(len) {\n\t        currentQueue = queue;\n\t        queue = [];\n\t        while (++queueIndex < len) {\n\t            if (currentQueue) {\n\t                currentQueue[queueIndex].run();\n\t            }\n\t        }\n\t        queueIndex = -1;\n\t        len = queue.length;\n\t    }\n\t    currentQueue = null;\n\t    draining = false;\n\t    runClearTimeout(timeout);\n\t}\n\t\n\tprocess.nextTick = function (fun) {\n\t    var args = new Array(arguments.length - 1);\n\t    if (arguments.length > 1) {\n\t        for (var i = 1; i < arguments.length; i++) {\n\t            args[i - 1] = arguments[i];\n\t        }\n\t    }\n\t    queue.push(new Item(fun, args));\n\t    if (queue.length === 1 && !draining) {\n\t        runTimeout(drainQueue);\n\t    }\n\t};\n\t\n\t// v8 likes predictible objects\n\tfunction Item(fun, array) {\n\t    this.fun = fun;\n\t    this.array = array;\n\t}\n\tItem.prototype.run = function () {\n\t    this.fun.apply(null, this.array);\n\t};\n\tprocess.title = 'browser';\n\tprocess.browser = true;\n\tprocess.env = {};\n\tprocess.argv = [];\n\tprocess.version = ''; // empty string to avoid regexp issues\n\tprocess.versions = {};\n\t\n\tfunction noop() {}\n\t\n\tprocess.on = noop;\n\tprocess.addListener = noop;\n\tprocess.once = noop;\n\tprocess.off = noop;\n\tprocess.removeListener = noop;\n\tprocess.removeAllListeners = noop;\n\tprocess.emit = noop;\n\tprocess.prependListener = noop;\n\tprocess.prependOnceListener = noop;\n\t\n\tprocess.listeners = function (name) { return [] }\n\t\n\tprocess.binding = function (name) {\n\t    throw new Error('process.binding is not supported');\n\t};\n\t\n\tprocess.cwd = function () { return '/' };\n\tprocess.chdir = function (dir) {\n\t    throw new Error('process.chdir is not supported');\n\t};\n\tprocess.umask = function() { return 0; };\n\n\n/***/ }),\n/* 5 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t\n\t/**\n\t * This is the common logic for both the Node.js and web browser\n\t * implementations of `debug()`.\n\t *\n\t * Expose `debug()` as the module.\n\t */\n\t\n\texports = module.exports = createDebug.debug = createDebug['default'] = createDebug;\n\texports.coerce = coerce;\n\texports.disable = disable;\n\texports.enable = enable;\n\texports.enabled = enabled;\n\texports.humanize = __webpack_require__(6);\n\t\n\t/**\n\t * Active `debug` instances.\n\t */\n\texports.instances = [];\n\t\n\t/**\n\t * The currently active debug mode names, and names to skip.\n\t */\n\t\n\texports.names = [];\n\texports.skips = [];\n\t\n\t/**\n\t * Map of special \"%n\" handling functions, for the debug \"format\" argument.\n\t *\n\t * Valid key names are a single, lower or upper-case letter, i.e. \"n\" and \"N\".\n\t */\n\t\n\texports.formatters = {};\n\t\n\t/**\n\t * Select a color.\n\t * @param {String} namespace\n\t * @return {Number}\n\t * @api private\n\t */\n\t\n\tfunction selectColor(namespace) {\n\t  var hash = 0, i;\n\t\n\t  for (i in namespace) {\n\t    hash  = ((hash << 5) - hash) + namespace.charCodeAt(i);\n\t    hash |= 0; // Convert to 32bit integer\n\t  }\n\t\n\t  return exports.colors[Math.abs(hash) % exports.colors.length];\n\t}\n\t\n\t/**\n\t * Create a debugger with the given `namespace`.\n\t *\n\t * @param {String} namespace\n\t * @return {Function}\n\t * @api public\n\t */\n\t\n\tfunction createDebug(namespace) {\n\t\n\t  var prevTime;\n\t\n\t  function debug() {\n\t    // disabled?\n\t    if (!debug.enabled) return;\n\t\n\t    var self = debug;\n\t\n\t    // set `diff` timestamp\n\t    var curr = +new Date();\n\t    var ms = curr - (prevTime || curr);\n\t    self.diff = ms;\n\t    self.prev = prevTime;\n\t    self.curr = curr;\n\t    prevTime = curr;\n\t\n\t    // turn the `arguments` into a proper Array\n\t    var args = new Array(arguments.length);\n\t    for (var i = 0; i < args.length; i++) {\n\t      args[i] = arguments[i];\n\t    }\n\t\n\t    args[0] = exports.coerce(args[0]);\n\t\n\t    if ('string' !== typeof args[0]) {\n\t      // anything else let's inspect with %O\n\t      args.unshift('%O');\n\t    }\n\t\n\t    // apply any `formatters` transformations\n\t    var index = 0;\n\t    args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {\n\t      // if we encounter an escaped % then don't increase the array index\n\t      if (match === '%%') return match;\n\t      index++;\n\t      var formatter = exports.formatters[format];\n\t      if ('function' === typeof formatter) {\n\t        var val = args[index];\n\t        match = formatter.call(self, val);\n\t\n\t        // now we need to remove `args[index]` since it's inlined in the `format`\n\t        args.splice(index, 1);\n\t        index--;\n\t      }\n\t      return match;\n\t    });\n\t\n\t    // apply env-specific formatting (colors, etc.)\n\t    exports.formatArgs.call(self, args);\n\t\n\t    var logFn = debug.log || exports.log || console.log.bind(console);\n\t    logFn.apply(self, args);\n\t  }\n\t\n\t  debug.namespace = namespace;\n\t  debug.enabled = exports.enabled(namespace);\n\t  debug.useColors = exports.useColors();\n\t  debug.color = selectColor(namespace);\n\t  debug.destroy = destroy;\n\t\n\t  // env-specific initialization logic for debug instances\n\t  if ('function' === typeof exports.init) {\n\t    exports.init(debug);\n\t  }\n\t\n\t  exports.instances.push(debug);\n\t\n\t  return debug;\n\t}\n\t\n\tfunction destroy () {\n\t  var index = exports.instances.indexOf(this);\n\t  if (index !== -1) {\n\t    exports.instances.splice(index, 1);\n\t    return true;\n\t  } else {\n\t    return false;\n\t  }\n\t}\n\t\n\t/**\n\t * Enables a debug mode by namespaces. This can include modes\n\t * separated by a colon and wildcards.\n\t *\n\t * @param {String} namespaces\n\t * @api public\n\t */\n\t\n\tfunction enable(namespaces) {\n\t  exports.save(namespaces);\n\t\n\t  exports.names = [];\n\t  exports.skips = [];\n\t\n\t  var i;\n\t  var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\\s,]+/);\n\t  var len = split.length;\n\t\n\t  for (i = 0; i < len; i++) {\n\t    if (!split[i]) continue; // ignore empty strings\n\t    namespaces = split[i].replace(/\\*/g, '.*?');\n\t    if (namespaces[0] === '-') {\n\t      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));\n\t    } else {\n\t      exports.names.push(new RegExp('^' + namespaces + '$'));\n\t    }\n\t  }\n\t\n\t  for (i = 0; i < exports.instances.length; i++) {\n\t    var instance = exports.instances[i];\n\t    instance.enabled = exports.enabled(instance.namespace);\n\t  }\n\t}\n\t\n\t/**\n\t * Disable debug output.\n\t *\n\t * @api public\n\t */\n\t\n\tfunction disable() {\n\t  exports.enable('');\n\t}\n\t\n\t/**\n\t * Returns true if the given mode name is enabled, false otherwise.\n\t *\n\t * @param {String} name\n\t * @return {Boolean}\n\t * @api public\n\t */\n\t\n\tfunction enabled(name) {\n\t  if (name[name.length - 1] === '*') {\n\t    return true;\n\t  }\n\t  var i, len;\n\t  for (i = 0, len = exports.skips.length; i < len; i++) {\n\t    if (exports.skips[i].test(name)) {\n\t      return false;\n\t    }\n\t  }\n\t  for (i = 0, len = exports.names.length; i < len; i++) {\n\t    if (exports.names[i].test(name)) {\n\t      return true;\n\t    }\n\t  }\n\t  return false;\n\t}\n\t\n\t/**\n\t * Coerce `val`.\n\t *\n\t * @param {Mixed} val\n\t * @return {Mixed}\n\t * @api private\n\t */\n\t\n\tfunction coerce(val) {\n\t  if (val instanceof Error) return val.stack || val.message;\n\t  return val;\n\t}\n\n\n/***/ }),\n/* 6 */\n/***/ (function(module, exports) {\n\n\t/**\n\t * Helpers.\n\t */\n\t\n\tvar s = 1000;\n\tvar m = s * 60;\n\tvar h = m * 60;\n\tvar d = h * 24;\n\tvar y = d * 365.25;\n\t\n\t/**\n\t * Parse or format the given `val`.\n\t *\n\t * Options:\n\t *\n\t *  - `long` verbose formatting [false]\n\t *\n\t * @param {String|Number} val\n\t * @param {Object} [options]\n\t * @throws {Error} throw an error if val is not a non-empty string or a number\n\t * @return {String|Number}\n\t * @api public\n\t */\n\t\n\tmodule.exports = function(val, options) {\n\t  options = options || {};\n\t  var type = typeof val;\n\t  if (type === 'string' && val.length > 0) {\n\t    return parse(val);\n\t  } else if (type === 'number' && isNaN(val) === false) {\n\t    return options.long ? fmtLong(val) : fmtShort(val);\n\t  }\n\t  throw new Error(\n\t    'val is not a non-empty string or a valid number. val=' +\n\t      JSON.stringify(val)\n\t  );\n\t};\n\t\n\t/**\n\t * Parse the given `str` and return milliseconds.\n\t *\n\t * @param {String} str\n\t * @return {Number}\n\t * @api private\n\t */\n\t\n\tfunction parse(str) {\n\t  str = String(str);\n\t  if (str.length > 100) {\n\t    return;\n\t  }\n\t  var match = /^((?:\\d+)?\\.?\\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(\n\t    str\n\t  );\n\t  if (!match) {\n\t    return;\n\t  }\n\t  var n = parseFloat(match[1]);\n\t  var type = (match[2] || 'ms').toLowerCase();\n\t  switch (type) {\n\t    case 'years':\n\t    case 'year':\n\t    case 'yrs':\n\t    case 'yr':\n\t    case 'y':\n\t      return n * y;\n\t    case 'days':\n\t    case 'day':\n\t    case 'd':\n\t      return n * d;\n\t    case 'hours':\n\t    case 'hour':\n\t    case 'hrs':\n\t    case 'hr':\n\t    case 'h':\n\t      return n * h;\n\t    case 'minutes':\n\t    case 'minute':\n\t    case 'mins':\n\t    case 'min':\n\t    case 'm':\n\t      return n * m;\n\t    case 'seconds':\n\t    case 'second':\n\t    case 'secs':\n\t    case 'sec':\n\t    case 's':\n\t      return n * s;\n\t    case 'milliseconds':\n\t    case 'millisecond':\n\t    case 'msecs':\n\t    case 'msec':\n\t    case 'ms':\n\t      return n;\n\t    default:\n\t      return undefined;\n\t  }\n\t}\n\t\n\t/**\n\t * Short format for `ms`.\n\t *\n\t * @param {Number} ms\n\t * @return {String}\n\t * @api private\n\t */\n\t\n\tfunction fmtShort(ms) {\n\t  if (ms >= d) {\n\t    return Math.round(ms / d) + 'd';\n\t  }\n\t  if (ms >= h) {\n\t    return Math.round(ms / h) + 'h';\n\t  }\n\t  if (ms >= m) {\n\t    return Math.round(ms / m) + 'm';\n\t  }\n\t  if (ms >= s) {\n\t    return Math.round(ms / s) + 's';\n\t  }\n\t  return ms + 'ms';\n\t}\n\t\n\t/**\n\t * Long format for `ms`.\n\t *\n\t * @param {Number} ms\n\t * @return {String}\n\t * @api private\n\t */\n\t\n\tfunction fmtLong(ms) {\n\t  return plural(ms, d, 'day') ||\n\t    plural(ms, h, 'hour') ||\n\t    plural(ms, m, 'minute') ||\n\t    plural(ms, s, 'second') ||\n\t    ms + ' ms';\n\t}\n\t\n\t/**\n\t * Pluralization helper.\n\t */\n\t\n\tfunction plural(ms, n, name) {\n\t  if (ms < n) {\n\t    return;\n\t  }\n\t  if (ms < n * 1.5) {\n\t    return Math.floor(ms / n) + ' ' + name;\n\t  }\n\t  return Math.ceil(ms / n) + ' ' + name + 's';\n\t}\n\n\n/***/ }),\n/* 7 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar debug = __webpack_require__(3)('socket.io-parser');\n\tvar Emitter = __webpack_require__(8);\n\tvar binary = __webpack_require__(9);\n\tvar isArray = __webpack_require__(10);\n\tvar isBuf = __webpack_require__(11);\n\t\n\t/**\n\t * Protocol version.\n\t *\n\t * @api public\n\t */\n\t\n\texports.protocol = 4;\n\t\n\t/**\n\t * Packet types.\n\t *\n\t * @api public\n\t */\n\t\n\texports.types = [\n\t  'CONNECT',\n\t  'DISCONNECT',\n\t  'EVENT',\n\t  'ACK',\n\t  'ERROR',\n\t  'BINARY_EVENT',\n\t  'BINARY_ACK'\n\t];\n\t\n\t/**\n\t * Packet type `connect`.\n\t *\n\t * @api public\n\t */\n\t\n\texports.CONNECT = 0;\n\t\n\t/**\n\t * Packet type `disconnect`.\n\t *\n\t * @api public\n\t */\n\t\n\texports.DISCONNECT = 1;\n\t\n\t/**\n\t * Packet type `event`.\n\t *\n\t * @api public\n\t */\n\t\n\texports.EVENT = 2;\n\t\n\t/**\n\t * Packet type `ack`.\n\t *\n\t * @api public\n\t */\n\t\n\texports.ACK = 3;\n\t\n\t/**\n\t * Packet type `error`.\n\t *\n\t * @api public\n\t */\n\t\n\texports.ERROR = 4;\n\t\n\t/**\n\t * Packet type 'binary event'\n\t *\n\t * @api public\n\t */\n\t\n\texports.BINARY_EVENT = 5;\n\t\n\t/**\n\t * Packet type `binary ack`. For acks with binary arguments.\n\t *\n\t * @api public\n\t */\n\t\n\texports.BINARY_ACK = 6;\n\t\n\t/**\n\t * Encoder constructor.\n\t *\n\t * @api public\n\t */\n\t\n\texports.Encoder = Encoder;\n\t\n\t/**\n\t * Decoder constructor.\n\t *\n\t * @api public\n\t */\n\t\n\texports.Decoder = Decoder;\n\t\n\t/**\n\t * A socket.io Encoder instance\n\t *\n\t * @api public\n\t */\n\t\n\tfunction Encoder() {}\n\t\n\tvar ERROR_PACKET = exports.ERROR + '\"encode error\"';\n\t\n\t/**\n\t * Encode a packet as a single string if non-binary, or as a\n\t * buffer sequence, depending on packet type.\n\t *\n\t * @param {Object} obj - packet object\n\t * @param {Function} callback - function to handle encodings (likely engine.write)\n\t * @return Calls callback with Array of encodings\n\t * @api public\n\t */\n\t\n\tEncoder.prototype.encode = function(obj, callback){\n\t  debug('encoding packet %j', obj);\n\t\n\t  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {\n\t    encodeAsBinary(obj, callback);\n\t  } else {\n\t    var encoding = encodeAsString(obj);\n\t    callback([encoding]);\n\t  }\n\t};\n\t\n\t/**\n\t * Encode packet as string.\n\t *\n\t * @param {Object} packet\n\t * @return {String} encoded\n\t * @api private\n\t */\n\t\n\tfunction encodeAsString(obj) {\n\t\n\t  // first is type\n\t  var str = '' + obj.type;\n\t\n\t  // attachments if we have them\n\t  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {\n\t    str += obj.attachments + '-';\n\t  }\n\t\n\t  // if we have a namespace other than `/`\n\t  // we append it followed by a comma `,`\n\t  if (obj.nsp && '/' !== obj.nsp) {\n\t    str += obj.nsp + ',';\n\t  }\n\t\n\t  // immediately followed by the id\n\t  if (null != obj.id) {\n\t    str += obj.id;\n\t  }\n\t\n\t  // json data\n\t  if (null != obj.data) {\n\t    var payload = tryStringify(obj.data);\n\t    if (payload !== false) {\n\t      str += payload;\n\t    } else {\n\t      return ERROR_PACKET;\n\t    }\n\t  }\n\t\n\t  debug('encoded %j as %s', obj, str);\n\t  return str;\n\t}\n\t\n\tfunction tryStringify(str) {\n\t  try {\n\t    return JSON.stringify(str);\n\t  } catch(e){\n\t    return false;\n\t  }\n\t}\n\t\n\t/**\n\t * Encode packet as 'buffer sequence' by removing blobs, and\n\t * deconstructing packet into object with placeholders and\n\t * a list of buffers.\n\t *\n\t * @param {Object} packet\n\t * @return {Buffer} encoded\n\t * @api private\n\t */\n\t\n\tfunction encodeAsBinary(obj, callback) {\n\t\n\t  function writeEncoding(bloblessData) {\n\t    var deconstruction = binary.deconstructPacket(bloblessData);\n\t    var pack = encodeAsString(deconstruction.packet);\n\t    var buffers = deconstruction.buffers;\n\t\n\t    buffers.unshift(pack); // add packet info to beginning of data list\n\t    callback(buffers); // write all the buffers\n\t  }\n\t\n\t  binary.removeBlobs(obj, writeEncoding);\n\t}\n\t\n\t/**\n\t * A socket.io Decoder instance\n\t *\n\t * @return {Object} decoder\n\t * @api public\n\t */\n\t\n\tfunction Decoder() {\n\t  this.reconstructor = null;\n\t}\n\t\n\t/**\n\t * Mix in `Emitter` with Decoder.\n\t */\n\t\n\tEmitter(Decoder.prototype);\n\t\n\t/**\n\t * Decodes an encoded packet string into packet JSON.\n\t *\n\t * @param {String} obj - encoded packet\n\t * @return {Object} packet\n\t * @api public\n\t */\n\t\n\tDecoder.prototype.add = function(obj) {\n\t  var packet;\n\t  if (typeof obj === 'string') {\n\t    packet = decodeString(obj);\n\t    if (exports.BINARY_EVENT === packet.type || exports.BINARY_ACK === packet.type) { // binary packet's json\n\t      this.reconstructor = new BinaryReconstructor(packet);\n\t\n\t      // no attachments, labeled binary but no binary data to follow\n\t      if (this.reconstructor.reconPack.attachments === 0) {\n\t        this.emit('decoded', packet);\n\t      }\n\t    } else { // non-binary full packet\n\t      this.emit('decoded', packet);\n\t    }\n\t  } else if (isBuf(obj) || obj.base64) { // raw binary data\n\t    if (!this.reconstructor) {\n\t      throw new Error('got binary data when not reconstructing a packet');\n\t    } else {\n\t      packet = this.reconstructor.takeBinaryData(obj);\n\t      if (packet) { // received final buffer\n\t        this.reconstructor = null;\n\t        this.emit('decoded', packet);\n\t      }\n\t    }\n\t  } else {\n\t    throw new Error('Unknown type: ' + obj);\n\t  }\n\t};\n\t\n\t/**\n\t * Decode a packet String (JSON data)\n\t *\n\t * @param {String} str\n\t * @return {Object} packet\n\t * @api private\n\t */\n\t\n\tfunction decodeString(str) {\n\t  var i = 0;\n\t  // look up type\n\t  var p = {\n\t    type: Number(str.charAt(0))\n\t  };\n\t\n\t  if (null == exports.types[p.type]) {\n\t    return error('unknown packet type ' + p.type);\n\t  }\n\t\n\t  // look up attachments if type binary\n\t  if (exports.BINARY_EVENT === p.type || exports.BINARY_ACK === p.type) {\n\t    var buf = '';\n\t    while (str.charAt(++i) !== '-') {\n\t      buf += str.charAt(i);\n\t      if (i == str.length) break;\n\t    }\n\t    if (buf != Number(buf) || str.charAt(i) !== '-') {\n\t      throw new Error('Illegal attachments');\n\t    }\n\t    p.attachments = Number(buf);\n\t  }\n\t\n\t  // look up namespace (if any)\n\t  if ('/' === str.charAt(i + 1)) {\n\t    p.nsp = '';\n\t    while (++i) {\n\t      var c = str.charAt(i);\n\t      if (',' === c) break;\n\t      p.nsp += c;\n\t      if (i === str.length) break;\n\t    }\n\t  } else {\n\t    p.nsp = '/';\n\t  }\n\t\n\t  // look up id\n\t  var next = str.charAt(i + 1);\n\t  if ('' !== next && Number(next) == next) {\n\t    p.id = '';\n\t    while (++i) {\n\t      var c = str.charAt(i);\n\t      if (null == c || Number(c) != c) {\n\t        --i;\n\t        break;\n\t      }\n\t      p.id += str.charAt(i);\n\t      if (i === str.length) break;\n\t    }\n\t    p.id = Number(p.id);\n\t  }\n\t\n\t  // look up json data\n\t  if (str.charAt(++i)) {\n\t    var payload = tryParse(str.substr(i));\n\t    var isPayloadValid = payload !== false && (p.type === exports.ERROR || isArray(payload));\n\t    if (isPayloadValid) {\n\t      p.data = payload;\n\t    } else {\n\t      return error('invalid payload');\n\t    }\n\t  }\n\t\n\t  debug('decoded %s as %j', str, p);\n\t  return p;\n\t}\n\t\n\tfunction tryParse(str) {\n\t  try {\n\t    return JSON.parse(str);\n\t  } catch(e){\n\t    return false;\n\t  }\n\t}\n\t\n\t/**\n\t * Deallocates a parser's resources\n\t *\n\t * @api public\n\t */\n\t\n\tDecoder.prototype.destroy = function() {\n\t  if (this.reconstructor) {\n\t    this.reconstructor.finishedReconstruction();\n\t  }\n\t};\n\t\n\t/**\n\t * A manager of a binary event's 'buffer sequence'. Should\n\t * be constructed whenever a packet of type BINARY_EVENT is\n\t * decoded.\n\t *\n\t * @param {Object} packet\n\t * @return {BinaryReconstructor} initialized reconstructor\n\t * @api private\n\t */\n\t\n\tfunction BinaryReconstructor(packet) {\n\t  this.reconPack = packet;\n\t  this.buffers = [];\n\t}\n\t\n\t/**\n\t * Method to be called when binary data received from connection\n\t * after a BINARY_EVENT packet.\n\t *\n\t * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n\t * @return {null | Object} returns null if more binary data is expected or\n\t *   a reconstructed packet object if all buffers have been received.\n\t * @api private\n\t */\n\t\n\tBinaryReconstructor.prototype.takeBinaryData = function(binData) {\n\t  this.buffers.push(binData);\n\t  if (this.buffers.length === this.reconPack.attachments) { // done with buffer list\n\t    var packet = binary.reconstructPacket(this.reconPack, this.buffers);\n\t    this.finishedReconstruction();\n\t    return packet;\n\t  }\n\t  return null;\n\t};\n\t\n\t/**\n\t * Cleans up binary packet reconstruction variables.\n\t *\n\t * @api private\n\t */\n\t\n\tBinaryReconstructor.prototype.finishedReconstruction = function() {\n\t  this.reconPack = null;\n\t  this.buffers = [];\n\t};\n\t\n\tfunction error(msg) {\n\t  return {\n\t    type: exports.ERROR,\n\t    data: 'parser error: ' + msg\n\t  };\n\t}\n\n\n/***/ }),\n/* 8 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t\r\n\t/**\r\n\t * Expose `Emitter`.\r\n\t */\r\n\t\r\n\tif (true) {\r\n\t  module.exports = Emitter;\r\n\t}\r\n\t\r\n\t/**\r\n\t * Initialize a new `Emitter`.\r\n\t *\r\n\t * @api public\r\n\t */\r\n\t\r\n\tfunction Emitter(obj) {\r\n\t  if (obj) return mixin(obj);\r\n\t};\r\n\t\r\n\t/**\r\n\t * Mixin the emitter properties.\r\n\t *\r\n\t * @param {Object} obj\r\n\t * @return {Object}\r\n\t * @api private\r\n\t */\r\n\t\r\n\tfunction mixin(obj) {\r\n\t  for (var key in Emitter.prototype) {\r\n\t    obj[key] = Emitter.prototype[key];\r\n\t  }\r\n\t  return obj;\r\n\t}\r\n\t\r\n\t/**\r\n\t * Listen on the given `event` with `fn`.\r\n\t *\r\n\t * @param {String} event\r\n\t * @param {Function} fn\r\n\t * @return {Emitter}\r\n\t * @api public\r\n\t */\r\n\t\r\n\tEmitter.prototype.on =\r\n\tEmitter.prototype.addEventListener = function(event, fn){\r\n\t  this._callbacks = this._callbacks || {};\r\n\t  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\r\n\t    .push(fn);\r\n\t  return this;\r\n\t};\r\n\t\r\n\t/**\r\n\t * Adds an `event` listener that will be invoked a single\r\n\t * time then automatically removed.\r\n\t *\r\n\t * @param {String} event\r\n\t * @param {Function} fn\r\n\t * @return {Emitter}\r\n\t * @api public\r\n\t */\r\n\t\r\n\tEmitter.prototype.once = function(event, fn){\r\n\t  function on() {\r\n\t    this.off(event, on);\r\n\t    fn.apply(this, arguments);\r\n\t  }\r\n\t\r\n\t  on.fn = fn;\r\n\t  this.on(event, on);\r\n\t  return this;\r\n\t};\r\n\t\r\n\t/**\r\n\t * Remove the given callback for `event` or all\r\n\t * registered callbacks.\r\n\t *\r\n\t * @param {String} event\r\n\t * @param {Function} fn\r\n\t * @return {Emitter}\r\n\t * @api public\r\n\t */\r\n\t\r\n\tEmitter.prototype.off =\r\n\tEmitter.prototype.removeListener =\r\n\tEmitter.prototype.removeAllListeners =\r\n\tEmitter.prototype.removeEventListener = function(event, fn){\r\n\t  this._callbacks = this._callbacks || {};\r\n\t\r\n\t  // all\r\n\t  if (0 == arguments.length) {\r\n\t    this._callbacks = {};\r\n\t    return this;\r\n\t  }\r\n\t\r\n\t  // specific event\r\n\t  var callbacks = this._callbacks['$' + event];\r\n\t  if (!callbacks) return this;\r\n\t\r\n\t  // remove all handlers\r\n\t  if (1 == arguments.length) {\r\n\t    delete this._callbacks['$' + event];\r\n\t    return this;\r\n\t  }\r\n\t\r\n\t  // remove specific handler\r\n\t  var cb;\r\n\t  for (var i = 0; i < callbacks.length; i++) {\r\n\t    cb = callbacks[i];\r\n\t    if (cb === fn || cb.fn === fn) {\r\n\t      callbacks.splice(i, 1);\r\n\t      break;\r\n\t    }\r\n\t  }\r\n\t  return this;\r\n\t};\r\n\t\r\n\t/**\r\n\t * Emit `event` with the given args.\r\n\t *\r\n\t * @param {String} event\r\n\t * @param {Mixed} ...\r\n\t * @return {Emitter}\r\n\t */\r\n\t\r\n\tEmitter.prototype.emit = function(event){\r\n\t  this._callbacks = this._callbacks || {};\r\n\t  var args = [].slice.call(arguments, 1)\r\n\t    , callbacks = this._callbacks['$' + event];\r\n\t\r\n\t  if (callbacks) {\r\n\t    callbacks = callbacks.slice(0);\r\n\t    for (var i = 0, len = callbacks.length; i < len; ++i) {\r\n\t      callbacks[i].apply(this, args);\r\n\t    }\r\n\t  }\r\n\t\r\n\t  return this;\r\n\t};\r\n\t\r\n\t/**\r\n\t * Return array of callbacks for `event`.\r\n\t *\r\n\t * @param {String} event\r\n\t * @return {Array}\r\n\t * @api public\r\n\t */\r\n\t\r\n\tEmitter.prototype.listeners = function(event){\r\n\t  this._callbacks = this._callbacks || {};\r\n\t  return this._callbacks['$' + event] || [];\r\n\t};\r\n\t\r\n\t/**\r\n\t * Check if this emitter has `event` handlers.\r\n\t *\r\n\t * @param {String} event\r\n\t * @return {Boolean}\r\n\t * @api public\r\n\t */\r\n\t\r\n\tEmitter.prototype.hasListeners = function(event){\r\n\t  return !! this.listeners(event).length;\r\n\t};\r\n\n\n/***/ }),\n/* 9 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/*global Blob,File*/\n\t\n\t/**\n\t * Module requirements\n\t */\n\t\n\tvar isArray = __webpack_require__(10);\n\tvar isBuf = __webpack_require__(11);\n\tvar toString = Object.prototype.toString;\n\tvar withNativeBlob = typeof Blob === 'function' || (typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]');\n\tvar withNativeFile = typeof File === 'function' || (typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]');\n\t\n\t/**\n\t * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder.\n\t * Anything with blobs or files should be fed through removeBlobs before coming\n\t * here.\n\t *\n\t * @param {Object} packet - socket.io event packet\n\t * @return {Object} with deconstructed packet and list of buffers\n\t * @api public\n\t */\n\t\n\texports.deconstructPacket = function(packet) {\n\t  var buffers = [];\n\t  var packetData = packet.data;\n\t  var pack = packet;\n\t  pack.data = _deconstructPacket(packetData, buffers);\n\t  pack.attachments = buffers.length; // number of binary 'attachments'\n\t  return {packet: pack, buffers: buffers};\n\t};\n\t\n\tfunction _deconstructPacket(data, buffers) {\n\t  if (!data) return data;\n\t\n\t  if (isBuf(data)) {\n\t    var placeholder = { _placeholder: true, num: buffers.length };\n\t    buffers.push(data);\n\t    return placeholder;\n\t  } else if (isArray(data)) {\n\t    var newData = new Array(data.length);\n\t    for (var i = 0; i < data.length; i++) {\n\t      newData[i] = _deconstructPacket(data[i], buffers);\n\t    }\n\t    return newData;\n\t  } else if (typeof data === 'object' && !(data instanceof Date)) {\n\t    var newData = {};\n\t    for (var key in data) {\n\t      newData[key] = _deconstructPacket(data[key], buffers);\n\t    }\n\t    return newData;\n\t  }\n\t  return data;\n\t}\n\t\n\t/**\n\t * Reconstructs a binary packet from its placeholder packet and buffers\n\t *\n\t * @param {Object} packet - event packet with placeholders\n\t * @param {Array} buffers - binary buffers to put in placeholder positions\n\t * @return {Object} reconstructed packet\n\t * @api public\n\t */\n\t\n\texports.reconstructPacket = function(packet, buffers) {\n\t  packet.data = _reconstructPacket(packet.data, buffers);\n\t  packet.attachments = undefined; // no longer useful\n\t  return packet;\n\t};\n\t\n\tfunction _reconstructPacket(data, buffers) {\n\t  if (!data) return data;\n\t\n\t  if (data && data._placeholder) {\n\t    return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n\t  } else if (isArray(data)) {\n\t    for (var i = 0; i < data.length; i++) {\n\t      data[i] = _reconstructPacket(data[i], buffers);\n\t    }\n\t  } else if (typeof data === 'object') {\n\t    for (var key in data) {\n\t      data[key] = _reconstructPacket(data[key], buffers);\n\t    }\n\t  }\n\t\n\t  return data;\n\t}\n\t\n\t/**\n\t * Asynchronously removes Blobs or Files from data via\n\t * FileReader's readAsArrayBuffer method. Used before encoding\n\t * data as msgpack. Calls callback with the blobless data.\n\t *\n\t * @param {Object} data\n\t * @param {Function} callback\n\t * @api private\n\t */\n\t\n\texports.removeBlobs = function(data, callback) {\n\t  function _removeBlobs(obj, curKey, containingObject) {\n\t    if (!obj) return obj;\n\t\n\t    // convert any blob\n\t    if ((withNativeBlob && obj instanceof Blob) ||\n\t        (withNativeFile && obj instanceof File)) {\n\t      pendingBlobs++;\n\t\n\t      // async filereader\n\t      var fileReader = new FileReader();\n\t      fileReader.onload = function() { // this.result == arraybuffer\n\t        if (containingObject) {\n\t          containingObject[curKey] = this.result;\n\t        }\n\t        else {\n\t          bloblessData = this.result;\n\t        }\n\t\n\t        // if nothing pending its callback time\n\t        if(! --pendingBlobs) {\n\t          callback(bloblessData);\n\t        }\n\t      };\n\t\n\t      fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer\n\t    } else if (isArray(obj)) { // handle array\n\t      for (var i = 0; i < obj.length; i++) {\n\t        _removeBlobs(obj[i], i, obj);\n\t      }\n\t    } else if (typeof obj === 'object' && !isBuf(obj)) { // and object\n\t      for (var key in obj) {\n\t        _removeBlobs(obj[key], key, obj);\n\t      }\n\t    }\n\t  }\n\t\n\t  var pendingBlobs = 0;\n\t  var bloblessData = data;\n\t  _removeBlobs(bloblessData);\n\t  if (!pendingBlobs) {\n\t    callback(bloblessData);\n\t  }\n\t};\n\n\n/***/ }),\n/* 10 */\n/***/ (function(module, exports) {\n\n\tvar toString = {}.toString;\n\t\n\tmodule.exports = Array.isArray || function (arr) {\n\t  return toString.call(arr) == '[object Array]';\n\t};\n\n\n/***/ }),\n/* 11 */\n/***/ (function(module, exports) {\n\n\t\n\tmodule.exports = isBuf;\n\t\n\tvar withNativeBuffer = typeof Buffer === 'function' && typeof Buffer.isBuffer === 'function';\n\tvar withNativeArrayBuffer = typeof ArrayBuffer === 'function';\n\t\n\tvar isView = function (obj) {\n\t  return typeof ArrayBuffer.isView === 'function' ? ArrayBuffer.isView(obj) : (obj.buffer instanceof ArrayBuffer);\n\t};\n\t\n\t/**\n\t * Returns true if obj is a buffer or an arraybuffer.\n\t *\n\t * @api private\n\t */\n\t\n\tfunction isBuf(obj) {\n\t  return (withNativeBuffer && Buffer.isBuffer(obj)) ||\n\t          (withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj)));\n\t}\n\n\n/***/ }),\n/* 12 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\t\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar eio = __webpack_require__(13);\n\tvar Socket = __webpack_require__(36);\n\tvar Emitter = __webpack_require__(8);\n\tvar parser = __webpack_require__(7);\n\tvar on = __webpack_require__(38);\n\tvar bind = __webpack_require__(39);\n\tvar debug = __webpack_require__(3)('socket.io-client:manager');\n\tvar indexOf = __webpack_require__(35);\n\tvar Backoff = __webpack_require__(40);\n\t\n\t/**\n\t * IE6+ hasOwnProperty\n\t */\n\t\n\tvar has = Object.prototype.hasOwnProperty;\n\t\n\t/**\n\t * Module exports\n\t */\n\t\n\tmodule.exports = Manager;\n\t\n\t/**\n\t * `Manager` constructor.\n\t *\n\t * @param {String} engine instance or engine uri/opts\n\t * @param {Object} options\n\t * @api public\n\t */\n\t\n\tfunction Manager(uri, opts) {\n\t  if (!(this instanceof Manager)) return new Manager(uri, opts);\n\t  if (uri && 'object' === (typeof uri === 'undefined' ? 'undefined' : _typeof(uri))) {\n\t    opts = uri;\n\t    uri = undefined;\n\t  }\n\t  opts = opts || {};\n\t\n\t  opts.path = opts.path || '/socket.io';\n\t  this.nsps = {};\n\t  this.subs = [];\n\t  this.opts = opts;\n\t  this.reconnection(opts.reconnection !== false);\n\t  this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n\t  this.reconnectionDelay(opts.reconnectionDelay || 1000);\n\t  this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n\t  this.randomizationFactor(opts.randomizationFactor || 0.5);\n\t  this.backoff = new Backoff({\n\t    min: this.reconnectionDelay(),\n\t    max: this.reconnectionDelayMax(),\n\t    jitter: this.randomizationFactor()\n\t  });\n\t  this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n\t  this.readyState = 'closed';\n\t  this.uri = uri;\n\t  this.connecting = [];\n\t  this.lastPing = null;\n\t  this.encoding = false;\n\t  this.packetBuffer = [];\n\t  var _parser = opts.parser || parser;\n\t  this.encoder = new _parser.Encoder();\n\t  this.decoder = new _parser.Decoder();\n\t  this.autoConnect = opts.autoConnect !== false;\n\t  if (this.autoConnect) this.open();\n\t}\n\t\n\t/**\n\t * Propagate given event to sockets and emit on `this`\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.emitAll = function () {\n\t  this.emit.apply(this, arguments);\n\t  for (var nsp in this.nsps) {\n\t    if (has.call(this.nsps, nsp)) {\n\t      this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);\n\t    }\n\t  }\n\t};\n\t\n\t/**\n\t * Update `socket.id` of all sockets\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.updateSocketIds = function () {\n\t  for (var nsp in this.nsps) {\n\t    if (has.call(this.nsps, nsp)) {\n\t      this.nsps[nsp].id = this.generateId(nsp);\n\t    }\n\t  }\n\t};\n\t\n\t/**\n\t * generate `socket.id` for the given `nsp`\n\t *\n\t * @param {String} nsp\n\t * @return {String}\n\t * @api private\n\t */\n\t\n\tManager.prototype.generateId = function (nsp) {\n\t  return (nsp === '/' ? '' : nsp + '#') + this.engine.id;\n\t};\n\t\n\t/**\n\t * Mix in `Emitter`.\n\t */\n\t\n\tEmitter(Manager.prototype);\n\t\n\t/**\n\t * Sets the `reconnection` config.\n\t *\n\t * @param {Boolean} true/false if it should automatically reconnect\n\t * @return {Manager} self or value\n\t * @api public\n\t */\n\t\n\tManager.prototype.reconnection = function (v) {\n\t  if (!arguments.length) return this._reconnection;\n\t  this._reconnection = !!v;\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sets the reconnection attempts config.\n\t *\n\t * @param {Number} max reconnection attempts before giving up\n\t * @return {Manager} self or value\n\t * @api public\n\t */\n\t\n\tManager.prototype.reconnectionAttempts = function (v) {\n\t  if (!arguments.length) return this._reconnectionAttempts;\n\t  this._reconnectionAttempts = v;\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sets the delay between reconnections.\n\t *\n\t * @param {Number} delay\n\t * @return {Manager} self or value\n\t * @api public\n\t */\n\t\n\tManager.prototype.reconnectionDelay = function (v) {\n\t  if (!arguments.length) return this._reconnectionDelay;\n\t  this._reconnectionDelay = v;\n\t  this.backoff && this.backoff.setMin(v);\n\t  return this;\n\t};\n\t\n\tManager.prototype.randomizationFactor = function (v) {\n\t  if (!arguments.length) return this._randomizationFactor;\n\t  this._randomizationFactor = v;\n\t  this.backoff && this.backoff.setJitter(v);\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sets the maximum delay between reconnections.\n\t *\n\t * @param {Number} delay\n\t * @return {Manager} self or value\n\t * @api public\n\t */\n\t\n\tManager.prototype.reconnectionDelayMax = function (v) {\n\t  if (!arguments.length) return this._reconnectionDelayMax;\n\t  this._reconnectionDelayMax = v;\n\t  this.backoff && this.backoff.setMax(v);\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sets the connection timeout. `false` to disable\n\t *\n\t * @return {Manager} self or value\n\t * @api public\n\t */\n\t\n\tManager.prototype.timeout = function (v) {\n\t  if (!arguments.length) return this._timeout;\n\t  this._timeout = v;\n\t  return this;\n\t};\n\t\n\t/**\n\t * Starts trying to reconnect if reconnection is enabled and we have not\n\t * started reconnecting yet\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.maybeReconnectOnOpen = function () {\n\t  // Only try to reconnect if it's the first time we're connecting\n\t  if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {\n\t    // keeps reconnection from firing twice for the same reconnection loop\n\t    this.reconnect();\n\t  }\n\t};\n\t\n\t/**\n\t * Sets the current transport `socket`.\n\t *\n\t * @param {Function} optional, callback\n\t * @return {Manager} self\n\t * @api public\n\t */\n\t\n\tManager.prototype.open = Manager.prototype.connect = function (fn, opts) {\n\t  debug('readyState %s', this.readyState);\n\t  if (~this.readyState.indexOf('open')) return this;\n\t\n\t  debug('opening %s', this.uri);\n\t  this.engine = eio(this.uri, this.opts);\n\t  var socket = this.engine;\n\t  var self = this;\n\t  this.readyState = 'opening';\n\t  this.skipReconnect = false;\n\t\n\t  // emit `open`\n\t  var openSub = on(socket, 'open', function () {\n\t    self.onopen();\n\t    fn && fn();\n\t  });\n\t\n\t  // emit `connect_error`\n\t  var errorSub = on(socket, 'error', function (data) {\n\t    debug('connect_error');\n\t    self.cleanup();\n\t    self.readyState = 'closed';\n\t    self.emitAll('connect_error', data);\n\t    if (fn) {\n\t      var err = new Error('Connection error');\n\t      err.data = data;\n\t      fn(err);\n\t    } else {\n\t      // Only do this if there is no fn to handle the error\n\t      self.maybeReconnectOnOpen();\n\t    }\n\t  });\n\t\n\t  // emit `connect_timeout`\n\t  if (false !== this._timeout) {\n\t    var timeout = this._timeout;\n\t    debug('connect attempt will timeout after %d', timeout);\n\t\n\t    // set timer\n\t    var timer = setTimeout(function () {\n\t      debug('connect attempt timed out after %d', timeout);\n\t      openSub.destroy();\n\t      socket.close();\n\t      socket.emit('error', 'timeout');\n\t      self.emitAll('connect_timeout', timeout);\n\t    }, timeout);\n\t\n\t    this.subs.push({\n\t      destroy: function destroy() {\n\t        clearTimeout(timer);\n\t      }\n\t    });\n\t  }\n\t\n\t  this.subs.push(openSub);\n\t  this.subs.push(errorSub);\n\t\n\t  return this;\n\t};\n\t\n\t/**\n\t * Called upon transport open.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.onopen = function () {\n\t  debug('open');\n\t\n\t  // clear old subs\n\t  this.cleanup();\n\t\n\t  // mark as open\n\t  this.readyState = 'open';\n\t  this.emit('open');\n\t\n\t  // add new subs\n\t  var socket = this.engine;\n\t  this.subs.push(on(socket, 'data', bind(this, 'ondata')));\n\t  this.subs.push(on(socket, 'ping', bind(this, 'onping')));\n\t  this.subs.push(on(socket, 'pong', bind(this, 'onpong')));\n\t  this.subs.push(on(socket, 'error', bind(this, 'onerror')));\n\t  this.subs.push(on(socket, 'close', bind(this, 'onclose')));\n\t  this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));\n\t};\n\t\n\t/**\n\t * Called upon a ping.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.onping = function () {\n\t  this.lastPing = new Date();\n\t  this.emitAll('ping');\n\t};\n\t\n\t/**\n\t * Called upon a packet.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.onpong = function () {\n\t  this.emitAll('pong', new Date() - this.lastPing);\n\t};\n\t\n\t/**\n\t * Called with data.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.ondata = function (data) {\n\t  this.decoder.add(data);\n\t};\n\t\n\t/**\n\t * Called when parser fully decodes a packet.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.ondecoded = function (packet) {\n\t  this.emit('packet', packet);\n\t};\n\t\n\t/**\n\t * Called upon socket error.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.onerror = function (err) {\n\t  debug('error', err);\n\t  this.emitAll('error', err);\n\t};\n\t\n\t/**\n\t * Creates a new socket for the given `nsp`.\n\t *\n\t * @return {Socket}\n\t * @api public\n\t */\n\t\n\tManager.prototype.socket = function (nsp, opts) {\n\t  var socket = this.nsps[nsp];\n\t  if (!socket) {\n\t    socket = new Socket(this, nsp, opts);\n\t    this.nsps[nsp] = socket;\n\t    var self = this;\n\t    socket.on('connecting', onConnecting);\n\t    socket.on('connect', function () {\n\t      socket.id = self.generateId(nsp);\n\t    });\n\t\n\t    if (this.autoConnect) {\n\t      // manually call here since connecting event is fired before listening\n\t      onConnecting();\n\t    }\n\t  }\n\t\n\t  function onConnecting() {\n\t    if (!~indexOf(self.connecting, socket)) {\n\t      self.connecting.push(socket);\n\t    }\n\t  }\n\t\n\t  return socket;\n\t};\n\t\n\t/**\n\t * Called upon a socket close.\n\t *\n\t * @param {Socket} socket\n\t */\n\t\n\tManager.prototype.destroy = function (socket) {\n\t  var index = indexOf(this.connecting, socket);\n\t  if (~index) this.connecting.splice(index, 1);\n\t  if (this.connecting.length) return;\n\t\n\t  this.close();\n\t};\n\t\n\t/**\n\t * Writes a packet.\n\t *\n\t * @param {Object} packet\n\t * @api private\n\t */\n\t\n\tManager.prototype.packet = function (packet) {\n\t  debug('writing packet %j', packet);\n\t  var self = this;\n\t  if (packet.query && packet.type === 0) packet.nsp += '?' + packet.query;\n\t\n\t  if (!self.encoding) {\n\t    // encode, then write to engine with result\n\t    self.encoding = true;\n\t    this.encoder.encode(packet, function (encodedPackets) {\n\t      for (var i = 0; i < encodedPackets.length; i++) {\n\t        self.engine.write(encodedPackets[i], packet.options);\n\t      }\n\t      self.encoding = false;\n\t      self.processPacketQueue();\n\t    });\n\t  } else {\n\t    // add packet to the queue\n\t    self.packetBuffer.push(packet);\n\t  }\n\t};\n\t\n\t/**\n\t * If packet buffer is non-empty, begins encoding the\n\t * next packet in line.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.processPacketQueue = function () {\n\t  if (this.packetBuffer.length > 0 && !this.encoding) {\n\t    var pack = this.packetBuffer.shift();\n\t    this.packet(pack);\n\t  }\n\t};\n\t\n\t/**\n\t * Clean up transport subscriptions and packet buffer.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.cleanup = function () {\n\t  debug('cleanup');\n\t\n\t  var subsLength = this.subs.length;\n\t  for (var i = 0; i < subsLength; i++) {\n\t    var sub = this.subs.shift();\n\t    sub.destroy();\n\t  }\n\t\n\t  this.packetBuffer = [];\n\t  this.encoding = false;\n\t  this.lastPing = null;\n\t\n\t  this.decoder.destroy();\n\t};\n\t\n\t/**\n\t * Close the current socket.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.close = Manager.prototype.disconnect = function () {\n\t  debug('disconnect');\n\t  this.skipReconnect = true;\n\t  this.reconnecting = false;\n\t  if ('opening' === this.readyState) {\n\t    // `onclose` will not fire because\n\t    // an open event never happened\n\t    this.cleanup();\n\t  }\n\t  this.backoff.reset();\n\t  this.readyState = 'closed';\n\t  if (this.engine) this.engine.close();\n\t};\n\t\n\t/**\n\t * Called upon engine close.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.onclose = function (reason) {\n\t  debug('onclose');\n\t\n\t  this.cleanup();\n\t  this.backoff.reset();\n\t  this.readyState = 'closed';\n\t  this.emit('close', reason);\n\t\n\t  if (this._reconnection && !this.skipReconnect) {\n\t    this.reconnect();\n\t  }\n\t};\n\t\n\t/**\n\t * Attempt a reconnection.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.reconnect = function () {\n\t  if (this.reconnecting || this.skipReconnect) return this;\n\t\n\t  var self = this;\n\t\n\t  if (this.backoff.attempts >= this._reconnectionAttempts) {\n\t    debug('reconnect failed');\n\t    this.backoff.reset();\n\t    this.emitAll('reconnect_failed');\n\t    this.reconnecting = false;\n\t  } else {\n\t    var delay = this.backoff.duration();\n\t    debug('will wait %dms before reconnect attempt', delay);\n\t\n\t    this.reconnecting = true;\n\t    var timer = setTimeout(function () {\n\t      if (self.skipReconnect) return;\n\t\n\t      debug('attempting reconnect');\n\t      self.emitAll('reconnect_attempt', self.backoff.attempts);\n\t      self.emitAll('reconnecting', self.backoff.attempts);\n\t\n\t      // check again for the case socket closed in above events\n\t      if (self.skipReconnect) return;\n\t\n\t      self.open(function (err) {\n\t        if (err) {\n\t          debug('reconnect attempt error');\n\t          self.reconnecting = false;\n\t          self.reconnect();\n\t          self.emitAll('reconnect_error', err.data);\n\t        } else {\n\t          debug('reconnect success');\n\t          self.onreconnect();\n\t        }\n\t      });\n\t    }, delay);\n\t\n\t    this.subs.push({\n\t      destroy: function destroy() {\n\t        clearTimeout(timer);\n\t      }\n\t    });\n\t  }\n\t};\n\t\n\t/**\n\t * Called upon successful reconnect.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.onreconnect = function () {\n\t  var attempt = this.backoff.attempts;\n\t  this.reconnecting = false;\n\t  this.backoff.reset();\n\t  this.updateSocketIds();\n\t  this.emitAll('reconnect', attempt);\n\t};\n\n/***/ }),\n/* 13 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t\n\tmodule.exports = __webpack_require__(14);\n\t\n\t/**\n\t * Exports parser\n\t *\n\t * @api public\n\t *\n\t */\n\tmodule.exports.parser = __webpack_require__(21);\n\n\n/***/ }),\n/* 14 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar transports = __webpack_require__(15);\n\tvar Emitter = __webpack_require__(8);\n\tvar debug = __webpack_require__(3)('engine.io-client:socket');\n\tvar index = __webpack_require__(35);\n\tvar parser = __webpack_require__(21);\n\tvar parseuri = __webpack_require__(2);\n\tvar parseqs = __webpack_require__(29);\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = Socket;\n\t\n\t/**\n\t * Socket constructor.\n\t *\n\t * @param {String|Object} uri or options\n\t * @param {Object} options\n\t * @api public\n\t */\n\t\n\tfunction Socket (uri, opts) {\n\t  if (!(this instanceof Socket)) return new Socket(uri, opts);\n\t\n\t  opts = opts || {};\n\t\n\t  if (uri && 'object' === typeof uri) {\n\t    opts = uri;\n\t    uri = null;\n\t  }\n\t\n\t  if (uri) {\n\t    uri = parseuri(uri);\n\t    opts.hostname = uri.host;\n\t    opts.secure = uri.protocol === 'https' || uri.protocol === 'wss';\n\t    opts.port = uri.port;\n\t    if (uri.query) opts.query = uri.query;\n\t  } else if (opts.host) {\n\t    opts.hostname = parseuri(opts.host).host;\n\t  }\n\t\n\t  this.secure = null != opts.secure ? opts.secure\n\t    : (typeof location !== 'undefined' && 'https:' === location.protocol);\n\t\n\t  if (opts.hostname && !opts.port) {\n\t    // if no port is specified manually, use the protocol default\n\t    opts.port = this.secure ? '443' : '80';\n\t  }\n\t\n\t  this.agent = opts.agent || false;\n\t  this.hostname = opts.hostname ||\n\t    (typeof location !== 'undefined' ? location.hostname : 'localhost');\n\t  this.port = opts.port || (typeof location !== 'undefined' && location.port\n\t      ? location.port\n\t      : (this.secure ? 443 : 80));\n\t  this.query = opts.query || {};\n\t  if ('string' === typeof this.query) this.query = parseqs.decode(this.query);\n\t  this.upgrade = false !== opts.upgrade;\n\t  this.path = (opts.path || '/engine.io').replace(/\\/$/, '') + '/';\n\t  this.forceJSONP = !!opts.forceJSONP;\n\t  this.jsonp = false !== opts.jsonp;\n\t  this.forceBase64 = !!opts.forceBase64;\n\t  this.enablesXDR = !!opts.enablesXDR;\n\t  this.timestampParam = opts.timestampParam || 't';\n\t  this.timestampRequests = opts.timestampRequests;\n\t  this.transports = opts.transports || ['polling', 'websocket'];\n\t  this.transportOptions = opts.transportOptions || {};\n\t  this.readyState = '';\n\t  this.writeBuffer = [];\n\t  this.prevBufferLen = 0;\n\t  this.policyPort = opts.policyPort || 843;\n\t  this.rememberUpgrade = opts.rememberUpgrade || false;\n\t  this.binaryType = null;\n\t  this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;\n\t  this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || {}) : false;\n\t\n\t  if (true === this.perMessageDeflate) this.perMessageDeflate = {};\n\t  if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) {\n\t    this.perMessageDeflate.threshold = 1024;\n\t  }\n\t\n\t  // SSL options for Node.js client\n\t  this.pfx = opts.pfx || null;\n\t  this.key = opts.key || null;\n\t  this.passphrase = opts.passphrase || null;\n\t  this.cert = opts.cert || null;\n\t  this.ca = opts.ca || null;\n\t  this.ciphers = opts.ciphers || null;\n\t  this.rejectUnauthorized = opts.rejectUnauthorized === undefined ? true : opts.rejectUnauthorized;\n\t  this.forceNode = !!opts.forceNode;\n\t\n\t  // detect ReactNative environment\n\t  this.isReactNative = (typeof navigator !== 'undefined' && typeof navigator.product === 'string' && navigator.product.toLowerCase() === 'reactnative');\n\t\n\t  // other options for Node.js or ReactNative client\n\t  if (typeof self === 'undefined' || this.isReactNative) {\n\t    if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) {\n\t      this.extraHeaders = opts.extraHeaders;\n\t    }\n\t\n\t    if (opts.localAddress) {\n\t      this.localAddress = opts.localAddress;\n\t    }\n\t  }\n\t\n\t  // set on handshake\n\t  this.id = null;\n\t  this.upgrades = null;\n\t  this.pingInterval = null;\n\t  this.pingTimeout = null;\n\t\n\t  // set on heartbeat\n\t  this.pingIntervalTimer = null;\n\t  this.pingTimeoutTimer = null;\n\t\n\t  this.open();\n\t}\n\t\n\tSocket.priorWebsocketSuccess = false;\n\t\n\t/**\n\t * Mix in `Emitter`.\n\t */\n\t\n\tEmitter(Socket.prototype);\n\t\n\t/**\n\t * Protocol version.\n\t *\n\t * @api public\n\t */\n\t\n\tSocket.protocol = parser.protocol; // this is an int\n\t\n\t/**\n\t * Expose deps for legacy compatibility\n\t * and standalone browser access.\n\t */\n\t\n\tSocket.Socket = Socket;\n\tSocket.Transport = __webpack_require__(20);\n\tSocket.transports = __webpack_require__(15);\n\tSocket.parser = __webpack_require__(21);\n\t\n\t/**\n\t * Creates transport of the given type.\n\t *\n\t * @param {String} transport name\n\t * @return {Transport}\n\t * @api private\n\t */\n\t\n\tSocket.prototype.createTransport = function (name) {\n\t  debug('creating transport \"%s\"', name);\n\t  var query = clone(this.query);\n\t\n\t  // append engine.io protocol identifier\n\t  query.EIO = parser.protocol;\n\t\n\t  // transport name\n\t  query.transport = name;\n\t\n\t  // per-transport options\n\t  var options = this.transportOptions[name] || {};\n\t\n\t  // session id if we already have one\n\t  if (this.id) query.sid = this.id;\n\t\n\t  var transport = new transports[name]({\n\t    query: query,\n\t    socket: this,\n\t    agent: options.agent || this.agent,\n\t    hostname: options.hostname || this.hostname,\n\t    port: options.port || this.port,\n\t    secure: options.secure || this.secure,\n\t    path: options.path || this.path,\n\t    forceJSONP: options.forceJSONP || this.forceJSONP,\n\t    jsonp: options.jsonp || this.jsonp,\n\t    forceBase64: options.forceBase64 || this.forceBase64,\n\t    enablesXDR: options.enablesXDR || this.enablesXDR,\n\t    timestampRequests: options.timestampRequests || this.timestampRequests,\n\t    timestampParam: options.timestampParam || this.timestampParam,\n\t    policyPort: options.policyPort || this.policyPort,\n\t    pfx: options.pfx || this.pfx,\n\t    key: options.key || this.key,\n\t    passphrase: options.passphrase || this.passphrase,\n\t    cert: options.cert || this.cert,\n\t    ca: options.ca || this.ca,\n\t    ciphers: options.ciphers || this.ciphers,\n\t    rejectUnauthorized: options.rejectUnauthorized || this.rejectUnauthorized,\n\t    perMessageDeflate: options.perMessageDeflate || this.perMessageDeflate,\n\t    extraHeaders: options.extraHeaders || this.extraHeaders,\n\t    forceNode: options.forceNode || this.forceNode,\n\t    localAddress: options.localAddress || this.localAddress,\n\t    requestTimeout: options.requestTimeout || this.requestTimeout,\n\t    protocols: options.protocols || void (0),\n\t    isReactNative: this.isReactNative\n\t  });\n\t\n\t  return transport;\n\t};\n\t\n\tfunction clone (obj) {\n\t  var o = {};\n\t  for (var i in obj) {\n\t    if (obj.hasOwnProperty(i)) {\n\t      o[i] = obj[i];\n\t    }\n\t  }\n\t  return o;\n\t}\n\t\n\t/**\n\t * Initializes transport to use and starts probe.\n\t *\n\t * @api private\n\t */\n\tSocket.prototype.open = function () {\n\t  var transport;\n\t  if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') !== -1) {\n\t    transport = 'websocket';\n\t  } else if (0 === this.transports.length) {\n\t    // Emit error on next tick so it can be listened to\n\t    var self = this;\n\t    setTimeout(function () {\n\t      self.emit('error', 'No transports available');\n\t    }, 0);\n\t    return;\n\t  } else {\n\t    transport = this.transports[0];\n\t  }\n\t  this.readyState = 'opening';\n\t\n\t  // Retry with the next transport if the transport is disabled (jsonp: false)\n\t  try {\n\t    transport = this.createTransport(transport);\n\t  } catch (e) {\n\t    this.transports.shift();\n\t    this.open();\n\t    return;\n\t  }\n\t\n\t  transport.open();\n\t  this.setTransport(transport);\n\t};\n\t\n\t/**\n\t * Sets the current transport. Disables the existing one (if any).\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.setTransport = function (transport) {\n\t  debug('setting transport %s', transport.name);\n\t  var self = this;\n\t\n\t  if (this.transport) {\n\t    debug('clearing existing transport %s', this.transport.name);\n\t    this.transport.removeAllListeners();\n\t  }\n\t\n\t  // set up transport\n\t  this.transport = transport;\n\t\n\t  // set up transport listeners\n\t  transport\n\t  .on('drain', function () {\n\t    self.onDrain();\n\t  })\n\t  .on('packet', function (packet) {\n\t    self.onPacket(packet);\n\t  })\n\t  .on('error', function (e) {\n\t    self.onError(e);\n\t  })\n\t  .on('close', function () {\n\t    self.onClose('transport close');\n\t  });\n\t};\n\t\n\t/**\n\t * Probes a transport.\n\t *\n\t * @param {String} transport name\n\t * @api private\n\t */\n\t\n\tSocket.prototype.probe = function (name) {\n\t  debug('probing transport \"%s\"', name);\n\t  var transport = this.createTransport(name, { probe: 1 });\n\t  var failed = false;\n\t  var self = this;\n\t\n\t  Socket.priorWebsocketSuccess = false;\n\t\n\t  function onTransportOpen () {\n\t    if (self.onlyBinaryUpgrades) {\n\t      var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;\n\t      failed = failed || upgradeLosesBinary;\n\t    }\n\t    if (failed) return;\n\t\n\t    debug('probe transport \"%s\" opened', name);\n\t    transport.send([{ type: 'ping', data: 'probe' }]);\n\t    transport.once('packet', function (msg) {\n\t      if (failed) return;\n\t      if ('pong' === msg.type && 'probe' === msg.data) {\n\t        debug('probe transport \"%s\" pong', name);\n\t        self.upgrading = true;\n\t        self.emit('upgrading', transport);\n\t        if (!transport) return;\n\t        Socket.priorWebsocketSuccess = 'websocket' === transport.name;\n\t\n\t        debug('pausing current transport \"%s\"', self.transport.name);\n\t        self.transport.pause(function () {\n\t          if (failed) return;\n\t          if ('closed' === self.readyState) return;\n\t          debug('changing transport and sending upgrade packet');\n\t\n\t          cleanup();\n\t\n\t          self.setTransport(transport);\n\t          transport.send([{ type: 'upgrade' }]);\n\t          self.emit('upgrade', transport);\n\t          transport = null;\n\t          self.upgrading = false;\n\t          self.flush();\n\t        });\n\t      } else {\n\t        debug('probe transport \"%s\" failed', name);\n\t        var err = new Error('probe error');\n\t        err.transport = transport.name;\n\t        self.emit('upgradeError', err);\n\t      }\n\t    });\n\t  }\n\t\n\t  function freezeTransport () {\n\t    if (failed) return;\n\t\n\t    // Any callback called by transport should be ignored since now\n\t    failed = true;\n\t\n\t    cleanup();\n\t\n\t    transport.close();\n\t    transport = null;\n\t  }\n\t\n\t  // Handle any error that happens while probing\n\t  function onerror (err) {\n\t    var error = new Error('probe error: ' + err);\n\t    error.transport = transport.name;\n\t\n\t    freezeTransport();\n\t\n\t    debug('probe transport \"%s\" failed because of error: %s', name, err);\n\t\n\t    self.emit('upgradeError', error);\n\t  }\n\t\n\t  function onTransportClose () {\n\t    onerror('transport closed');\n\t  }\n\t\n\t  // When the socket is closed while we're probing\n\t  function onclose () {\n\t    onerror('socket closed');\n\t  }\n\t\n\t  // When the socket is upgraded while we're probing\n\t  function onupgrade (to) {\n\t    if (transport && to.name !== transport.name) {\n\t      debug('\"%s\" works - aborting \"%s\"', to.name, transport.name);\n\t      freezeTransport();\n\t    }\n\t  }\n\t\n\t  // Remove all listeners on the transport and on self\n\t  function cleanup () {\n\t    transport.removeListener('open', onTransportOpen);\n\t    transport.removeListener('error', onerror);\n\t    transport.removeListener('close', onTransportClose);\n\t    self.removeListener('close', onclose);\n\t    self.removeListener('upgrading', onupgrade);\n\t  }\n\t\n\t  transport.once('open', onTransportOpen);\n\t  transport.once('error', onerror);\n\t  transport.once('close', onTransportClose);\n\t\n\t  this.once('close', onclose);\n\t  this.once('upgrading', onupgrade);\n\t\n\t  transport.open();\n\t};\n\t\n\t/**\n\t * Called when connection is deemed open.\n\t *\n\t * @api public\n\t */\n\t\n\tSocket.prototype.onOpen = function () {\n\t  debug('socket open');\n\t  this.readyState = 'open';\n\t  Socket.priorWebsocketSuccess = 'websocket' === this.transport.name;\n\t  this.emit('open');\n\t  this.flush();\n\t\n\t  // we check for `readyState` in case an `open`\n\t  // listener already closed the socket\n\t  if ('open' === this.readyState && this.upgrade && this.transport.pause) {\n\t    debug('starting upgrade probes');\n\t    for (var i = 0, l = this.upgrades.length; i < l; i++) {\n\t      this.probe(this.upgrades[i]);\n\t    }\n\t  }\n\t};\n\t\n\t/**\n\t * Handles a packet.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onPacket = function (packet) {\n\t  if ('opening' === this.readyState || 'open' === this.readyState ||\n\t      'closing' === this.readyState) {\n\t    debug('socket receive: type \"%s\", data \"%s\"', packet.type, packet.data);\n\t\n\t    this.emit('packet', packet);\n\t\n\t    // Socket is live - any packet counts\n\t    this.emit('heartbeat');\n\t\n\t    switch (packet.type) {\n\t      case 'open':\n\t        this.onHandshake(JSON.parse(packet.data));\n\t        break;\n\t\n\t      case 'pong':\n\t        this.setPing();\n\t        this.emit('pong');\n\t        break;\n\t\n\t      case 'error':\n\t        var err = new Error('server error');\n\t        err.code = packet.data;\n\t        this.onError(err);\n\t        break;\n\t\n\t      case 'message':\n\t        this.emit('data', packet.data);\n\t        this.emit('message', packet.data);\n\t        break;\n\t    }\n\t  } else {\n\t    debug('packet received with socket readyState \"%s\"', this.readyState);\n\t  }\n\t};\n\t\n\t/**\n\t * Called upon handshake completion.\n\t *\n\t * @param {Object} handshake obj\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onHandshake = function (data) {\n\t  this.emit('handshake', data);\n\t  this.id = data.sid;\n\t  this.transport.query.sid = data.sid;\n\t  this.upgrades = this.filterUpgrades(data.upgrades);\n\t  this.pingInterval = data.pingInterval;\n\t  this.pingTimeout = data.pingTimeout;\n\t  this.onOpen();\n\t  // In case open handler closes socket\n\t  if ('closed' === this.readyState) return;\n\t  this.setPing();\n\t\n\t  // Prolong liveness of socket on heartbeat\n\t  this.removeListener('heartbeat', this.onHeartbeat);\n\t  this.on('heartbeat', this.onHeartbeat);\n\t};\n\t\n\t/**\n\t * Resets ping timeout.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onHeartbeat = function (timeout) {\n\t  clearTimeout(this.pingTimeoutTimer);\n\t  var self = this;\n\t  self.pingTimeoutTimer = setTimeout(function () {\n\t    if ('closed' === self.readyState) return;\n\t    self.onClose('ping timeout');\n\t  }, timeout || (self.pingInterval + self.pingTimeout));\n\t};\n\t\n\t/**\n\t * Pings server every `this.pingInterval` and expects response\n\t * within `this.pingTimeout` or closes connection.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.setPing = function () {\n\t  var self = this;\n\t  clearTimeout(self.pingIntervalTimer);\n\t  self.pingIntervalTimer = setTimeout(function () {\n\t    debug('writing ping packet - expecting pong within %sms', self.pingTimeout);\n\t    self.ping();\n\t    self.onHeartbeat(self.pingTimeout);\n\t  }, self.pingInterval);\n\t};\n\t\n\t/**\n\t* Sends a ping packet.\n\t*\n\t* @api private\n\t*/\n\t\n\tSocket.prototype.ping = function () {\n\t  var self = this;\n\t  this.sendPacket('ping', function () {\n\t    self.emit('ping');\n\t  });\n\t};\n\t\n\t/**\n\t * Called on `drain` event\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onDrain = function () {\n\t  this.writeBuffer.splice(0, this.prevBufferLen);\n\t\n\t  // setting prevBufferLen = 0 is very important\n\t  // for example, when upgrading, upgrade packet is sent over,\n\t  // and a nonzero prevBufferLen could cause problems on `drain`\n\t  this.prevBufferLen = 0;\n\t\n\t  if (0 === this.writeBuffer.length) {\n\t    this.emit('drain');\n\t  } else {\n\t    this.flush();\n\t  }\n\t};\n\t\n\t/**\n\t * Flush write buffers.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.flush = function () {\n\t  if ('closed' !== this.readyState && this.transport.writable &&\n\t    !this.upgrading && this.writeBuffer.length) {\n\t    debug('flushing %d packets in socket', this.writeBuffer.length);\n\t    this.transport.send(this.writeBuffer);\n\t    // keep track of current length of writeBuffer\n\t    // splice writeBuffer and callbackBuffer on `drain`\n\t    this.prevBufferLen = this.writeBuffer.length;\n\t    this.emit('flush');\n\t  }\n\t};\n\t\n\t/**\n\t * Sends a message.\n\t *\n\t * @param {String} message.\n\t * @param {Function} callback function.\n\t * @param {Object} options.\n\t * @return {Socket} for chaining.\n\t * @api public\n\t */\n\t\n\tSocket.prototype.write =\n\tSocket.prototype.send = function (msg, options, fn) {\n\t  this.sendPacket('message', msg, options, fn);\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sends a packet.\n\t *\n\t * @param {String} packet type.\n\t * @param {String} data.\n\t * @param {Object} options.\n\t * @param {Function} callback function.\n\t * @api private\n\t */\n\t\n\tSocket.prototype.sendPacket = function (type, data, options, fn) {\n\t  if ('function' === typeof data) {\n\t    fn = data;\n\t    data = undefined;\n\t  }\n\t\n\t  if ('function' === typeof options) {\n\t    fn = options;\n\t    options = null;\n\t  }\n\t\n\t  if ('closing' === this.readyState || 'closed' === this.readyState) {\n\t    return;\n\t  }\n\t\n\t  options = options || {};\n\t  options.compress = false !== options.compress;\n\t\n\t  var packet = {\n\t    type: type,\n\t    data: data,\n\t    options: options\n\t  };\n\t  this.emit('packetCreate', packet);\n\t  this.writeBuffer.push(packet);\n\t  if (fn) this.once('flush', fn);\n\t  this.flush();\n\t};\n\t\n\t/**\n\t * Closes the connection.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.close = function () {\n\t  if ('opening' === this.readyState || 'open' === this.readyState) {\n\t    this.readyState = 'closing';\n\t\n\t    var self = this;\n\t\n\t    if (this.writeBuffer.length) {\n\t      this.once('drain', function () {\n\t        if (this.upgrading) {\n\t          waitForUpgrade();\n\t        } else {\n\t          close();\n\t        }\n\t      });\n\t    } else if (this.upgrading) {\n\t      waitForUpgrade();\n\t    } else {\n\t      close();\n\t    }\n\t  }\n\t\n\t  function close () {\n\t    self.onClose('forced close');\n\t    debug('socket closing - telling transport to close');\n\t    self.transport.close();\n\t  }\n\t\n\t  function cleanupAndClose () {\n\t    self.removeListener('upgrade', cleanupAndClose);\n\t    self.removeListener('upgradeError', cleanupAndClose);\n\t    close();\n\t  }\n\t\n\t  function waitForUpgrade () {\n\t    // wait for upgrade to finish since we can't send packets while pausing a transport\n\t    self.once('upgrade', cleanupAndClose);\n\t    self.once('upgradeError', cleanupAndClose);\n\t  }\n\t\n\t  return this;\n\t};\n\t\n\t/**\n\t * Called upon transport error\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onError = function (err) {\n\t  debug('socket error %j', err);\n\t  Socket.priorWebsocketSuccess = false;\n\t  this.emit('error', err);\n\t  this.onClose('transport error', err);\n\t};\n\t\n\t/**\n\t * Called upon transport close.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onClose = function (reason, desc) {\n\t  if ('opening' === this.readyState || 'open' === this.readyState || 'closing' === this.readyState) {\n\t    debug('socket close with reason: \"%s\"', reason);\n\t    var self = this;\n\t\n\t    // clear timers\n\t    clearTimeout(this.pingIntervalTimer);\n\t    clearTimeout(this.pingTimeoutTimer);\n\t\n\t    // stop event from firing again for transport\n\t    this.transport.removeAllListeners('close');\n\t\n\t    // ensure transport won't stay open\n\t    this.transport.close();\n\t\n\t    // ignore further transport communication\n\t    this.transport.removeAllListeners();\n\t\n\t    // set ready state\n\t    this.readyState = 'closed';\n\t\n\t    // clear session id\n\t    this.id = null;\n\t\n\t    // emit close event\n\t    this.emit('close', reason, desc);\n\t\n\t    // clean buffers after, so users can still\n\t    // grab the buffers on `close` event\n\t    self.writeBuffer = [];\n\t    self.prevBufferLen = 0;\n\t  }\n\t};\n\t\n\t/**\n\t * Filters upgrades, returning only those matching client transports.\n\t *\n\t * @param {Array} server upgrades\n\t * @api private\n\t *\n\t */\n\t\n\tSocket.prototype.filterUpgrades = function (upgrades) {\n\t  var filteredUpgrades = [];\n\t  for (var i = 0, j = upgrades.length; i < j; i++) {\n\t    if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);\n\t  }\n\t  return filteredUpgrades;\n\t};\n\n\n/***/ }),\n/* 15 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/**\n\t * Module dependencies\n\t */\n\t\n\tvar XMLHttpRequest = __webpack_require__(16);\n\tvar XHR = __webpack_require__(18);\n\tvar JSONP = __webpack_require__(32);\n\tvar websocket = __webpack_require__(33);\n\t\n\t/**\n\t * Export transports.\n\t */\n\t\n\texports.polling = polling;\n\texports.websocket = websocket;\n\t\n\t/**\n\t * Polling transport polymorphic constructor.\n\t * Decides on xhr vs jsonp based on feature detection.\n\t *\n\t * @api private\n\t */\n\t\n\tfunction polling (opts) {\n\t  var xhr;\n\t  var xd = false;\n\t  var xs = false;\n\t  var jsonp = false !== opts.jsonp;\n\t\n\t  if (typeof location !== 'undefined') {\n\t    var isSSL = 'https:' === location.protocol;\n\t    var port = location.port;\n\t\n\t    // some user agents have empty `location.port`\n\t    if (!port) {\n\t      port = isSSL ? 443 : 80;\n\t    }\n\t\n\t    xd = opts.hostname !== location.hostname || port !== opts.port;\n\t    xs = opts.secure !== isSSL;\n\t  }\n\t\n\t  opts.xdomain = xd;\n\t  opts.xscheme = xs;\n\t  xhr = new XMLHttpRequest(opts);\n\t\n\t  if ('open' in xhr && !opts.forceJSONP) {\n\t    return new XHR(opts);\n\t  } else {\n\t    if (!jsonp) throw new Error('JSONP disabled');\n\t    return new JSONP(opts);\n\t  }\n\t}\n\n\n/***/ }),\n/* 16 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t// browser shim for xmlhttprequest module\n\t\n\tvar hasCORS = __webpack_require__(17);\n\t\n\tmodule.exports = function (opts) {\n\t  var xdomain = opts.xdomain;\n\t\n\t  // scheme must be same when usign XDomainRequest\n\t  // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx\n\t  var xscheme = opts.xscheme;\n\t\n\t  // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.\n\t  // https://github.com/Automattic/engine.io-client/pull/217\n\t  var enablesXDR = opts.enablesXDR;\n\t\n\t  // XMLHttpRequest can be disabled on IE\n\t  try {\n\t    if ('undefined' !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n\t      return new XMLHttpRequest();\n\t    }\n\t  } catch (e) { }\n\t\n\t  // Use XDomainRequest for IE8 if enablesXDR is true\n\t  // because loading bar keeps flashing when using jsonp-polling\n\t  // https://github.com/yujiosaka/socke.io-ie8-loading-example\n\t  try {\n\t    if ('undefined' !== typeof XDomainRequest && !xscheme && enablesXDR) {\n\t      return new XDomainRequest();\n\t    }\n\t  } catch (e) { }\n\t\n\t  if (!xdomain) {\n\t    try {\n\t      return new self[['Active'].concat('Object').join('X')]('Microsoft.XMLHTTP');\n\t    } catch (e) { }\n\t  }\n\t};\n\n\n/***/ }),\n/* 17 */\n/***/ (function(module, exports) {\n\n\t\n\t/**\n\t * Module exports.\n\t *\n\t * Logic borrowed from Modernizr:\n\t *\n\t *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js\n\t */\n\t\n\ttry {\n\t  module.exports = typeof XMLHttpRequest !== 'undefined' &&\n\t    'withCredentials' in new XMLHttpRequest();\n\t} catch (err) {\n\t  // if XMLHttp support is disabled in IE then it will throw\n\t  // when trying to create\n\t  module.exports = false;\n\t}\n\n\n/***/ }),\n/* 18 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/* global attachEvent */\n\t\n\t/**\n\t * Module requirements.\n\t */\n\t\n\tvar XMLHttpRequest = __webpack_require__(16);\n\tvar Polling = __webpack_require__(19);\n\tvar Emitter = __webpack_require__(8);\n\tvar inherit = __webpack_require__(30);\n\tvar debug = __webpack_require__(3)('engine.io-client:polling-xhr');\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = XHR;\n\tmodule.exports.Request = Request;\n\t\n\t/**\n\t * Empty function\n\t */\n\t\n\tfunction empty () {}\n\t\n\t/**\n\t * XHR Polling constructor.\n\t *\n\t * @param {Object} opts\n\t * @api public\n\t */\n\t\n\tfunction XHR (opts) {\n\t  Polling.call(this, opts);\n\t  this.requestTimeout = opts.requestTimeout;\n\t  this.extraHeaders = opts.extraHeaders;\n\t\n\t  if (typeof location !== 'undefined') {\n\t    var isSSL = 'https:' === location.protocol;\n\t    var port = location.port;\n\t\n\t    // some user agents have empty `location.port`\n\t    if (!port) {\n\t      port = isSSL ? 443 : 80;\n\t    }\n\t\n\t    this.xd = (typeof location !== 'undefined' && opts.hostname !== location.hostname) ||\n\t      port !== opts.port;\n\t    this.xs = opts.secure !== isSSL;\n\t  }\n\t}\n\t\n\t/**\n\t * Inherits from Polling.\n\t */\n\t\n\tinherit(XHR, Polling);\n\t\n\t/**\n\t * XHR supports binary\n\t */\n\t\n\tXHR.prototype.supportsBinary = true;\n\t\n\t/**\n\t * Creates a request.\n\t *\n\t * @param {String} method\n\t * @api private\n\t */\n\t\n\tXHR.prototype.request = function (opts) {\n\t  opts = opts || {};\n\t  opts.uri = this.uri();\n\t  opts.xd = this.xd;\n\t  opts.xs = this.xs;\n\t  opts.agent = this.agent || false;\n\t  opts.supportsBinary = this.supportsBinary;\n\t  opts.enablesXDR = this.enablesXDR;\n\t\n\t  // SSL options for Node.js client\n\t  opts.pfx = this.pfx;\n\t  opts.key = this.key;\n\t  opts.passphrase = this.passphrase;\n\t  opts.cert = this.cert;\n\t  opts.ca = this.ca;\n\t  opts.ciphers = this.ciphers;\n\t  opts.rejectUnauthorized = this.rejectUnauthorized;\n\t  opts.requestTimeout = this.requestTimeout;\n\t\n\t  // other options for Node.js client\n\t  opts.extraHeaders = this.extraHeaders;\n\t\n\t  return new Request(opts);\n\t};\n\t\n\t/**\n\t * Sends data.\n\t *\n\t * @param {String} data to send.\n\t * @param {Function} called upon flush.\n\t * @api private\n\t */\n\t\n\tXHR.prototype.doWrite = function (data, fn) {\n\t  var isBinary = typeof data !== 'string' && data !== undefined;\n\t  var req = this.request({ method: 'POST', data: data, isBinary: isBinary });\n\t  var self = this;\n\t  req.on('success', fn);\n\t  req.on('error', function (err) {\n\t    self.onError('xhr post error', err);\n\t  });\n\t  this.sendXhr = req;\n\t};\n\t\n\t/**\n\t * Starts a poll cycle.\n\t *\n\t * @api private\n\t */\n\t\n\tXHR.prototype.doPoll = function () {\n\t  debug('xhr poll');\n\t  var req = this.request();\n\t  var self = this;\n\t  req.on('data', function (data) {\n\t    self.onData(data);\n\t  });\n\t  req.on('error', function (err) {\n\t    self.onError('xhr poll error', err);\n\t  });\n\t  this.pollXhr = req;\n\t};\n\t\n\t/**\n\t * Request constructor\n\t *\n\t * @param {Object} options\n\t * @api public\n\t */\n\t\n\tfunction Request (opts) {\n\t  this.method = opts.method || 'GET';\n\t  this.uri = opts.uri;\n\t  this.xd = !!opts.xd;\n\t  this.xs = !!opts.xs;\n\t  this.async = false !== opts.async;\n\t  this.data = undefined !== opts.data ? opts.data : null;\n\t  this.agent = opts.agent;\n\t  this.isBinary = opts.isBinary;\n\t  this.supportsBinary = opts.supportsBinary;\n\t  this.enablesXDR = opts.enablesXDR;\n\t  this.requestTimeout = opts.requestTimeout;\n\t\n\t  // SSL options for Node.js client\n\t  this.pfx = opts.pfx;\n\t  this.key = opts.key;\n\t  this.passphrase = opts.passphrase;\n\t  this.cert = opts.cert;\n\t  this.ca = opts.ca;\n\t  this.ciphers = opts.ciphers;\n\t  this.rejectUnauthorized = opts.rejectUnauthorized;\n\t\n\t  // other options for Node.js client\n\t  this.extraHeaders = opts.extraHeaders;\n\t\n\t  this.create();\n\t}\n\t\n\t/**\n\t * Mix in `Emitter`.\n\t */\n\t\n\tEmitter(Request.prototype);\n\t\n\t/**\n\t * Creates the XHR object and sends the request.\n\t *\n\t * @api private\n\t */\n\t\n\tRequest.prototype.create = function () {\n\t  var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };\n\t\n\t  // SSL options for Node.js client\n\t  opts.pfx = this.pfx;\n\t  opts.key = this.key;\n\t  opts.passphrase = this.passphrase;\n\t  opts.cert = this.cert;\n\t  opts.ca = this.ca;\n\t  opts.ciphers = this.ciphers;\n\t  opts.rejectUnauthorized = this.rejectUnauthorized;\n\t\n\t  var xhr = this.xhr = new XMLHttpRequest(opts);\n\t  var self = this;\n\t\n\t  try {\n\t    debug('xhr open %s: %s', this.method, this.uri);\n\t    xhr.open(this.method, this.uri, this.async);\n\t    try {\n\t      if (this.extraHeaders) {\n\t        xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n\t        for (var i in this.extraHeaders) {\n\t          if (this.extraHeaders.hasOwnProperty(i)) {\n\t            xhr.setRequestHeader(i, this.extraHeaders[i]);\n\t          }\n\t        }\n\t      }\n\t    } catch (e) {}\n\t\n\t    if ('POST' === this.method) {\n\t      try {\n\t        if (this.isBinary) {\n\t          xhr.setRequestHeader('Content-type', 'application/octet-stream');\n\t        } else {\n\t          xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');\n\t        }\n\t      } catch (e) {}\n\t    }\n\t\n\t    try {\n\t      xhr.setRequestHeader('Accept', '*/*');\n\t    } catch (e) {}\n\t\n\t    // ie6 check\n\t    if ('withCredentials' in xhr) {\n\t      xhr.withCredentials = true;\n\t    }\n\t\n\t    if (this.requestTimeout) {\n\t      xhr.timeout = this.requestTimeout;\n\t    }\n\t\n\t    if (this.hasXDR()) {\n\t      xhr.onload = function () {\n\t        self.onLoad();\n\t      };\n\t      xhr.onerror = function () {\n\t        self.onError(xhr.responseText);\n\t      };\n\t    } else {\n\t      xhr.onreadystatechange = function () {\n\t        if (xhr.readyState === 2) {\n\t          try {\n\t            var contentType = xhr.getResponseHeader('Content-Type');\n\t            if (self.supportsBinary && contentType === 'application/octet-stream') {\n\t              xhr.responseType = 'arraybuffer';\n\t            }\n\t          } catch (e) {}\n\t        }\n\t        if (4 !== xhr.readyState) return;\n\t        if (200 === xhr.status || 1223 === xhr.status) {\n\t          self.onLoad();\n\t        } else {\n\t          // make sure the `error` event handler that's user-set\n\t          // does not throw in the same tick and gets caught here\n\t          setTimeout(function () {\n\t            self.onError(xhr.status);\n\t          }, 0);\n\t        }\n\t      };\n\t    }\n\t\n\t    debug('xhr data %s', this.data);\n\t    xhr.send(this.data);\n\t  } catch (e) {\n\t    // Need to defer since .create() is called directly fhrom the constructor\n\t    // and thus the 'error' event can only be only bound *after* this exception\n\t    // occurs.  Therefore, also, we cannot throw here at all.\n\t    setTimeout(function () {\n\t      self.onError(e);\n\t    }, 0);\n\t    return;\n\t  }\n\t\n\t  if (typeof document !== 'undefined') {\n\t    this.index = Request.requestsCount++;\n\t    Request.requests[this.index] = this;\n\t  }\n\t};\n\t\n\t/**\n\t * Called upon successful response.\n\t *\n\t * @api private\n\t */\n\t\n\tRequest.prototype.onSuccess = function () {\n\t  this.emit('success');\n\t  this.cleanup();\n\t};\n\t\n\t/**\n\t * Called if we have data.\n\t *\n\t * @api private\n\t */\n\t\n\tRequest.prototype.onData = function (data) {\n\t  this.emit('data', data);\n\t  this.onSuccess();\n\t};\n\t\n\t/**\n\t * Called upon error.\n\t *\n\t * @api private\n\t */\n\t\n\tRequest.prototype.onError = function (err) {\n\t  this.emit('error', err);\n\t  this.cleanup(true);\n\t};\n\t\n\t/**\n\t * Cleans up house.\n\t *\n\t * @api private\n\t */\n\t\n\tRequest.prototype.cleanup = function (fromError) {\n\t  if ('undefined' === typeof this.xhr || null === this.xhr) {\n\t    return;\n\t  }\n\t  // xmlhttprequest\n\t  if (this.hasXDR()) {\n\t    this.xhr.onload = this.xhr.onerror = empty;\n\t  } else {\n\t    this.xhr.onreadystatechange = empty;\n\t  }\n\t\n\t  if (fromError) {\n\t    try {\n\t      this.xhr.abort();\n\t    } catch (e) {}\n\t  }\n\t\n\t  if (typeof document !== 'undefined') {\n\t    delete Request.requests[this.index];\n\t  }\n\t\n\t  this.xhr = null;\n\t};\n\t\n\t/**\n\t * Called upon load.\n\t *\n\t * @api private\n\t */\n\t\n\tRequest.prototype.onLoad = function () {\n\t  var data;\n\t  try {\n\t    var contentType;\n\t    try {\n\t      contentType = this.xhr.getResponseHeader('Content-Type');\n\t    } catch (e) {}\n\t    if (contentType === 'application/octet-stream') {\n\t      data = this.xhr.response || this.xhr.responseText;\n\t    } else {\n\t      data = this.xhr.responseText;\n\t    }\n\t  } catch (e) {\n\t    this.onError(e);\n\t  }\n\t  if (null != data) {\n\t    this.onData(data);\n\t  }\n\t};\n\t\n\t/**\n\t * Check if it has XDomainRequest.\n\t *\n\t * @api private\n\t */\n\t\n\tRequest.prototype.hasXDR = function () {\n\t  return typeof XDomainRequest !== 'undefined' && !this.xs && this.enablesXDR;\n\t};\n\t\n\t/**\n\t * Aborts the request.\n\t *\n\t * @api public\n\t */\n\t\n\tRequest.prototype.abort = function () {\n\t  this.cleanup();\n\t};\n\t\n\t/**\n\t * Aborts pending requests when unloading the window. This is needed to prevent\n\t * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n\t * emitted.\n\t */\n\t\n\tRequest.requestsCount = 0;\n\tRequest.requests = {};\n\t\n\tif (typeof document !== 'undefined') {\n\t  if (typeof attachEvent === 'function') {\n\t    attachEvent('onunload', unloadHandler);\n\t  } else if (typeof addEventListener === 'function') {\n\t    var terminationEvent = 'onpagehide' in self ? 'pagehide' : 'unload';\n\t    addEventListener(terminationEvent, unloadHandler, false);\n\t  }\n\t}\n\t\n\tfunction unloadHandler () {\n\t  for (var i in Request.requests) {\n\t    if (Request.requests.hasOwnProperty(i)) {\n\t      Request.requests[i].abort();\n\t    }\n\t  }\n\t}\n\n\n/***/ }),\n/* 19 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar Transport = __webpack_require__(20);\n\tvar parseqs = __webpack_require__(29);\n\tvar parser = __webpack_require__(21);\n\tvar inherit = __webpack_require__(30);\n\tvar yeast = __webpack_require__(31);\n\tvar debug = __webpack_require__(3)('engine.io-client:polling');\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = Polling;\n\t\n\t/**\n\t * Is XHR2 supported?\n\t */\n\t\n\tvar hasXHR2 = (function () {\n\t  var XMLHttpRequest = __webpack_require__(16);\n\t  var xhr = new XMLHttpRequest({ xdomain: false });\n\t  return null != xhr.responseType;\n\t})();\n\t\n\t/**\n\t * Polling interface.\n\t *\n\t * @param {Object} opts\n\t * @api private\n\t */\n\t\n\tfunction Polling (opts) {\n\t  var forceBase64 = (opts && opts.forceBase64);\n\t  if (!hasXHR2 || forceBase64) {\n\t    this.supportsBinary = false;\n\t  }\n\t  Transport.call(this, opts);\n\t}\n\t\n\t/**\n\t * Inherits from Transport.\n\t */\n\t\n\tinherit(Polling, Transport);\n\t\n\t/**\n\t * Transport name.\n\t */\n\t\n\tPolling.prototype.name = 'polling';\n\t\n\t/**\n\t * Opens the socket (triggers polling). We write a PING message to determine\n\t * when the transport is open.\n\t *\n\t * @api private\n\t */\n\t\n\tPolling.prototype.doOpen = function () {\n\t  this.poll();\n\t};\n\t\n\t/**\n\t * Pauses polling.\n\t *\n\t * @param {Function} callback upon buffers are flushed and transport is paused\n\t * @api private\n\t */\n\t\n\tPolling.prototype.pause = function (onPause) {\n\t  var self = this;\n\t\n\t  this.readyState = 'pausing';\n\t\n\t  function pause () {\n\t    debug('paused');\n\t    self.readyState = 'paused';\n\t    onPause();\n\t  }\n\t\n\t  if (this.polling || !this.writable) {\n\t    var total = 0;\n\t\n\t    if (this.polling) {\n\t      debug('we are currently polling - waiting to pause');\n\t      total++;\n\t      this.once('pollComplete', function () {\n\t        debug('pre-pause polling complete');\n\t        --total || pause();\n\t      });\n\t    }\n\t\n\t    if (!this.writable) {\n\t      debug('we are currently writing - waiting to pause');\n\t      total++;\n\t      this.once('drain', function () {\n\t        debug('pre-pause writing complete');\n\t        --total || pause();\n\t      });\n\t    }\n\t  } else {\n\t    pause();\n\t  }\n\t};\n\t\n\t/**\n\t * Starts polling cycle.\n\t *\n\t * @api public\n\t */\n\t\n\tPolling.prototype.poll = function () {\n\t  debug('polling');\n\t  this.polling = true;\n\t  this.doPoll();\n\t  this.emit('poll');\n\t};\n\t\n\t/**\n\t * Overloads onData to detect payloads.\n\t *\n\t * @api private\n\t */\n\t\n\tPolling.prototype.onData = function (data) {\n\t  var self = this;\n\t  debug('polling got data %s', data);\n\t  var callback = function (packet, index, total) {\n\t    // if its the first message we consider the transport open\n\t    if ('opening' === self.readyState) {\n\t      self.onOpen();\n\t    }\n\t\n\t    // if its a close packet, we close the ongoing requests\n\t    if ('close' === packet.type) {\n\t      self.onClose();\n\t      return false;\n\t    }\n\t\n\t    // otherwise bypass onData and handle the message\n\t    self.onPacket(packet);\n\t  };\n\t\n\t  // decode payload\n\t  parser.decodePayload(data, this.socket.binaryType, callback);\n\t\n\t  // if an event did not trigger closing\n\t  if ('closed' !== this.readyState) {\n\t    // if we got data we're not polling\n\t    this.polling = false;\n\t    this.emit('pollComplete');\n\t\n\t    if ('open' === this.readyState) {\n\t      this.poll();\n\t    } else {\n\t      debug('ignoring poll - transport state \"%s\"', this.readyState);\n\t    }\n\t  }\n\t};\n\t\n\t/**\n\t * For polling, send a close packet.\n\t *\n\t * @api private\n\t */\n\t\n\tPolling.prototype.doClose = function () {\n\t  var self = this;\n\t\n\t  function close () {\n\t    debug('writing close packet');\n\t    self.write([{ type: 'close' }]);\n\t  }\n\t\n\t  if ('open' === this.readyState) {\n\t    debug('transport open - closing');\n\t    close();\n\t  } else {\n\t    // in case we're trying to close while\n\t    // handshaking is in progress (GH-164)\n\t    debug('transport not open - deferring close');\n\t    this.once('open', close);\n\t  }\n\t};\n\t\n\t/**\n\t * Writes a packets payload.\n\t *\n\t * @param {Array} data packets\n\t * @param {Function} drain callback\n\t * @api private\n\t */\n\t\n\tPolling.prototype.write = function (packets) {\n\t  var self = this;\n\t  this.writable = false;\n\t  var callbackfn = function () {\n\t    self.writable = true;\n\t    self.emit('drain');\n\t  };\n\t\n\t  parser.encodePayload(packets, this.supportsBinary, function (data) {\n\t    self.doWrite(data, callbackfn);\n\t  });\n\t};\n\t\n\t/**\n\t * Generates uri for connection.\n\t *\n\t * @api private\n\t */\n\t\n\tPolling.prototype.uri = function () {\n\t  var query = this.query || {};\n\t  var schema = this.secure ? 'https' : 'http';\n\t  var port = '';\n\t\n\t  // cache busting is forced\n\t  if (false !== this.timestampRequests) {\n\t    query[this.timestampParam] = yeast();\n\t  }\n\t\n\t  if (!this.supportsBinary && !query.sid) {\n\t    query.b64 = 1;\n\t  }\n\t\n\t  query = parseqs.encode(query);\n\t\n\t  // avoid port if default for schema\n\t  if (this.port && (('https' === schema && Number(this.port) !== 443) ||\n\t     ('http' === schema && Number(this.port) !== 80))) {\n\t    port = ':' + this.port;\n\t  }\n\t\n\t  // prepend ? to query\n\t  if (query.length) {\n\t    query = '?' + query;\n\t  }\n\t\n\t  var ipv6 = this.hostname.indexOf(':') !== -1;\n\t  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;\n\t};\n\n\n/***/ }),\n/* 20 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar parser = __webpack_require__(21);\n\tvar Emitter = __webpack_require__(8);\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = Transport;\n\t\n\t/**\n\t * Transport abstract constructor.\n\t *\n\t * @param {Object} options.\n\t * @api private\n\t */\n\t\n\tfunction Transport (opts) {\n\t  this.path = opts.path;\n\t  this.hostname = opts.hostname;\n\t  this.port = opts.port;\n\t  this.secure = opts.secure;\n\t  this.query = opts.query;\n\t  this.timestampParam = opts.timestampParam;\n\t  this.timestampRequests = opts.timestampRequests;\n\t  this.readyState = '';\n\t  this.agent = opts.agent || false;\n\t  this.socket = opts.socket;\n\t  this.enablesXDR = opts.enablesXDR;\n\t\n\t  // SSL options for Node.js client\n\t  this.pfx = opts.pfx;\n\t  this.key = opts.key;\n\t  this.passphrase = opts.passphrase;\n\t  this.cert = opts.cert;\n\t  this.ca = opts.ca;\n\t  this.ciphers = opts.ciphers;\n\t  this.rejectUnauthorized = opts.rejectUnauthorized;\n\t  this.forceNode = opts.forceNode;\n\t\n\t  // results of ReactNative environment detection\n\t  this.isReactNative = opts.isReactNative;\n\t\n\t  // other options for Node.js client\n\t  this.extraHeaders = opts.extraHeaders;\n\t  this.localAddress = opts.localAddress;\n\t}\n\t\n\t/**\n\t * Mix in `Emitter`.\n\t */\n\t\n\tEmitter(Transport.prototype);\n\t\n\t/**\n\t * Emits an error.\n\t *\n\t * @param {String} str\n\t * @return {Transport} for chaining\n\t * @api public\n\t */\n\t\n\tTransport.prototype.onError = function (msg, desc) {\n\t  var err = new Error(msg);\n\t  err.type = 'TransportError';\n\t  err.description = desc;\n\t  this.emit('error', err);\n\t  return this;\n\t};\n\t\n\t/**\n\t * Opens the transport.\n\t *\n\t * @api public\n\t */\n\t\n\tTransport.prototype.open = function () {\n\t  if ('closed' === this.readyState || '' === this.readyState) {\n\t    this.readyState = 'opening';\n\t    this.doOpen();\n\t  }\n\t\n\t  return this;\n\t};\n\t\n\t/**\n\t * Closes the transport.\n\t *\n\t * @api private\n\t */\n\t\n\tTransport.prototype.close = function () {\n\t  if ('opening' === this.readyState || 'open' === this.readyState) {\n\t    this.doClose();\n\t    this.onClose();\n\t  }\n\t\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sends multiple packets.\n\t *\n\t * @param {Array} packets\n\t * @api private\n\t */\n\t\n\tTransport.prototype.send = function (packets) {\n\t  if ('open' === this.readyState) {\n\t    this.write(packets);\n\t  } else {\n\t    throw new Error('Transport not open');\n\t  }\n\t};\n\t\n\t/**\n\t * Called upon open\n\t *\n\t * @api private\n\t */\n\t\n\tTransport.prototype.onOpen = function () {\n\t  this.readyState = 'open';\n\t  this.writable = true;\n\t  this.emit('open');\n\t};\n\t\n\t/**\n\t * Called with data.\n\t *\n\t * @param {String} data\n\t * @api private\n\t */\n\t\n\tTransport.prototype.onData = function (data) {\n\t  var packet = parser.decodePacket(data, this.socket.binaryType);\n\t  this.onPacket(packet);\n\t};\n\t\n\t/**\n\t * Called with a decoded packet.\n\t */\n\t\n\tTransport.prototype.onPacket = function (packet) {\n\t  this.emit('packet', packet);\n\t};\n\t\n\t/**\n\t * Called upon close.\n\t *\n\t * @api private\n\t */\n\t\n\tTransport.prototype.onClose = function () {\n\t  this.readyState = 'closed';\n\t  this.emit('close');\n\t};\n\n\n/***/ }),\n/* 21 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar keys = __webpack_require__(22);\n\tvar hasBinary = __webpack_require__(23);\n\tvar sliceBuffer = __webpack_require__(24);\n\tvar after = __webpack_require__(25);\n\tvar utf8 = __webpack_require__(26);\n\t\n\tvar base64encoder;\n\tif (typeof ArrayBuffer !== 'undefined') {\n\t  base64encoder = __webpack_require__(27);\n\t}\n\t\n\t/**\n\t * Check if we are running an android browser. That requires us to use\n\t * ArrayBuffer with polling transports...\n\t *\n\t * http://ghinda.net/jpeg-blob-ajax-android/\n\t */\n\t\n\tvar isAndroid = typeof navigator !== 'undefined' && /Android/i.test(navigator.userAgent);\n\t\n\t/**\n\t * Check if we are running in PhantomJS.\n\t * Uploading a Blob with PhantomJS does not work correctly, as reported here:\n\t * https://github.com/ariya/phantomjs/issues/11395\n\t * @type boolean\n\t */\n\tvar isPhantomJS = typeof navigator !== 'undefined' && /PhantomJS/i.test(navigator.userAgent);\n\t\n\t/**\n\t * When true, avoids using Blobs to encode payloads.\n\t * @type boolean\n\t */\n\tvar dontSendBlobs = isAndroid || isPhantomJS;\n\t\n\t/**\n\t * Current protocol version.\n\t */\n\t\n\texports.protocol = 3;\n\t\n\t/**\n\t * Packet types.\n\t */\n\t\n\tvar packets = exports.packets = {\n\t    open:     0    // non-ws\n\t  , close:    1    // non-ws\n\t  , ping:     2\n\t  , pong:     3\n\t  , message:  4\n\t  , upgrade:  5\n\t  , noop:     6\n\t};\n\t\n\tvar packetslist = keys(packets);\n\t\n\t/**\n\t * Premade error packet.\n\t */\n\t\n\tvar err = { type: 'error', data: 'parser error' };\n\t\n\t/**\n\t * Create a blob api even for blob builder when vendor prefixes exist\n\t */\n\t\n\tvar Blob = __webpack_require__(28);\n\t\n\t/**\n\t * Encodes a packet.\n\t *\n\t *     <packet type id> [ <data> ]\n\t *\n\t * Example:\n\t *\n\t *     5hello world\n\t *     3\n\t *     4\n\t *\n\t * Binary is encoded in an identical principle\n\t *\n\t * @api private\n\t */\n\t\n\texports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {\n\t  if (typeof supportsBinary === 'function') {\n\t    callback = supportsBinary;\n\t    supportsBinary = false;\n\t  }\n\t\n\t  if (typeof utf8encode === 'function') {\n\t    callback = utf8encode;\n\t    utf8encode = null;\n\t  }\n\t\n\t  var data = (packet.data === undefined)\n\t    ? undefined\n\t    : packet.data.buffer || packet.data;\n\t\n\t  if (typeof ArrayBuffer !== 'undefined' && data instanceof ArrayBuffer) {\n\t    return encodeArrayBuffer(packet, supportsBinary, callback);\n\t  } else if (typeof Blob !== 'undefined' && data instanceof Blob) {\n\t    return encodeBlob(packet, supportsBinary, callback);\n\t  }\n\t\n\t  // might be an object with { base64: true, data: dataAsBase64String }\n\t  if (data && data.base64) {\n\t    return encodeBase64Object(packet, callback);\n\t  }\n\t\n\t  // Sending data as a utf-8 string\n\t  var encoded = packets[packet.type];\n\t\n\t  // data fragment is optional\n\t  if (undefined !== packet.data) {\n\t    encoded += utf8encode ? utf8.encode(String(packet.data), { strict: false }) : String(packet.data);\n\t  }\n\t\n\t  return callback('' + encoded);\n\t\n\t};\n\t\n\tfunction encodeBase64Object(packet, callback) {\n\t  // packet data is an object { base64: true, data: dataAsBase64String }\n\t  var message = 'b' + exports.packets[packet.type] + packet.data.data;\n\t  return callback(message);\n\t}\n\t\n\t/**\n\t * Encode packet helpers for binary types\n\t */\n\t\n\tfunction encodeArrayBuffer(packet, supportsBinary, callback) {\n\t  if (!supportsBinary) {\n\t    return exports.encodeBase64Packet(packet, callback);\n\t  }\n\t\n\t  var data = packet.data;\n\t  var contentArray = new Uint8Array(data);\n\t  var resultBuffer = new Uint8Array(1 + data.byteLength);\n\t\n\t  resultBuffer[0] = packets[packet.type];\n\t  for (var i = 0; i < contentArray.length; i++) {\n\t    resultBuffer[i+1] = contentArray[i];\n\t  }\n\t\n\t  return callback(resultBuffer.buffer);\n\t}\n\t\n\tfunction encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {\n\t  if (!supportsBinary) {\n\t    return exports.encodeBase64Packet(packet, callback);\n\t  }\n\t\n\t  var fr = new FileReader();\n\t  fr.onload = function() {\n\t    exports.encodePacket({ type: packet.type, data: fr.result }, supportsBinary, true, callback);\n\t  };\n\t  return fr.readAsArrayBuffer(packet.data);\n\t}\n\t\n\tfunction encodeBlob(packet, supportsBinary, callback) {\n\t  if (!supportsBinary) {\n\t    return exports.encodeBase64Packet(packet, callback);\n\t  }\n\t\n\t  if (dontSendBlobs) {\n\t    return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);\n\t  }\n\t\n\t  var length = new Uint8Array(1);\n\t  length[0] = packets[packet.type];\n\t  var blob = new Blob([length.buffer, packet.data]);\n\t\n\t  return callback(blob);\n\t}\n\t\n\t/**\n\t * Encodes a packet with binary data in a base64 string\n\t *\n\t * @param {Object} packet, has `type` and `data`\n\t * @return {String} base64 encoded message\n\t */\n\t\n\texports.encodeBase64Packet = function(packet, callback) {\n\t  var message = 'b' + exports.packets[packet.type];\n\t  if (typeof Blob !== 'undefined' && packet.data instanceof Blob) {\n\t    var fr = new FileReader();\n\t    fr.onload = function() {\n\t      var b64 = fr.result.split(',')[1];\n\t      callback(message + b64);\n\t    };\n\t    return fr.readAsDataURL(packet.data);\n\t  }\n\t\n\t  var b64data;\n\t  try {\n\t    b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));\n\t  } catch (e) {\n\t    // iPhone Safari doesn't let you apply with typed arrays\n\t    var typed = new Uint8Array(packet.data);\n\t    var basic = new Array(typed.length);\n\t    for (var i = 0; i < typed.length; i++) {\n\t      basic[i] = typed[i];\n\t    }\n\t    b64data = String.fromCharCode.apply(null, basic);\n\t  }\n\t  message += btoa(b64data);\n\t  return callback(message);\n\t};\n\t\n\t/**\n\t * Decodes a packet. Changes format to Blob if requested.\n\t *\n\t * @return {Object} with `type` and `data` (if any)\n\t * @api private\n\t */\n\t\n\texports.decodePacket = function (data, binaryType, utf8decode) {\n\t  if (data === undefined) {\n\t    return err;\n\t  }\n\t  // String data\n\t  if (typeof data === 'string') {\n\t    if (data.charAt(0) === 'b') {\n\t      return exports.decodeBase64Packet(data.substr(1), binaryType);\n\t    }\n\t\n\t    if (utf8decode) {\n\t      data = tryDecode(data);\n\t      if (data === false) {\n\t        return err;\n\t      }\n\t    }\n\t    var type = data.charAt(0);\n\t\n\t    if (Number(type) != type || !packetslist[type]) {\n\t      return err;\n\t    }\n\t\n\t    if (data.length > 1) {\n\t      return { type: packetslist[type], data: data.substring(1) };\n\t    } else {\n\t      return { type: packetslist[type] };\n\t    }\n\t  }\n\t\n\t  var asArray = new Uint8Array(data);\n\t  var type = asArray[0];\n\t  var rest = sliceBuffer(data, 1);\n\t  if (Blob && binaryType === 'blob') {\n\t    rest = new Blob([rest]);\n\t  }\n\t  return { type: packetslist[type], data: rest };\n\t};\n\t\n\tfunction tryDecode(data) {\n\t  try {\n\t    data = utf8.decode(data, { strict: false });\n\t  } catch (e) {\n\t    return false;\n\t  }\n\t  return data;\n\t}\n\t\n\t/**\n\t * Decodes a packet encoded in a base64 string\n\t *\n\t * @param {String} base64 encoded message\n\t * @return {Object} with `type` and `data` (if any)\n\t */\n\t\n\texports.decodeBase64Packet = function(msg, binaryType) {\n\t  var type = packetslist[msg.charAt(0)];\n\t  if (!base64encoder) {\n\t    return { type: type, data: { base64: true, data: msg.substr(1) } };\n\t  }\n\t\n\t  var data = base64encoder.decode(msg.substr(1));\n\t\n\t  if (binaryType === 'blob' && Blob) {\n\t    data = new Blob([data]);\n\t  }\n\t\n\t  return { type: type, data: data };\n\t};\n\t\n\t/**\n\t * Encodes multiple messages (payload).\n\t *\n\t *     <length>:data\n\t *\n\t * Example:\n\t *\n\t *     11:hello world2:hi\n\t *\n\t * If any contents are binary, they will be encoded as base64 strings. Base64\n\t * encoded strings are marked with a b before the length specifier\n\t *\n\t * @param {Array} packets\n\t * @api private\n\t */\n\t\n\texports.encodePayload = function (packets, supportsBinary, callback) {\n\t  if (typeof supportsBinary === 'function') {\n\t    callback = supportsBinary;\n\t    supportsBinary = null;\n\t  }\n\t\n\t  var isBinary = hasBinary(packets);\n\t\n\t  if (supportsBinary && isBinary) {\n\t    if (Blob && !dontSendBlobs) {\n\t      return exports.encodePayloadAsBlob(packets, callback);\n\t    }\n\t\n\t    return exports.encodePayloadAsArrayBuffer(packets, callback);\n\t  }\n\t\n\t  if (!packets.length) {\n\t    return callback('0:');\n\t  }\n\t\n\t  function setLengthHeader(message) {\n\t    return message.length + ':' + message;\n\t  }\n\t\n\t  function encodeOne(packet, doneCallback) {\n\t    exports.encodePacket(packet, !isBinary ? false : supportsBinary, false, function(message) {\n\t      doneCallback(null, setLengthHeader(message));\n\t    });\n\t  }\n\t\n\t  map(packets, encodeOne, function(err, results) {\n\t    return callback(results.join(''));\n\t  });\n\t};\n\t\n\t/**\n\t * Async array map using after\n\t */\n\t\n\tfunction map(ary, each, done) {\n\t  var result = new Array(ary.length);\n\t  var next = after(ary.length, done);\n\t\n\t  var eachWithIndex = function(i, el, cb) {\n\t    each(el, function(error, msg) {\n\t      result[i] = msg;\n\t      cb(error, result);\n\t    });\n\t  };\n\t\n\t  for (var i = 0; i < ary.length; i++) {\n\t    eachWithIndex(i, ary[i], next);\n\t  }\n\t}\n\t\n\t/*\n\t * Decodes data when a payload is maybe expected. Possible binary contents are\n\t * decoded from their base64 representation\n\t *\n\t * @param {String} data, callback method\n\t * @api public\n\t */\n\t\n\texports.decodePayload = function (data, binaryType, callback) {\n\t  if (typeof data !== 'string') {\n\t    return exports.decodePayloadAsBinary(data, binaryType, callback);\n\t  }\n\t\n\t  if (typeof binaryType === 'function') {\n\t    callback = binaryType;\n\t    binaryType = null;\n\t  }\n\t\n\t  var packet;\n\t  if (data === '') {\n\t    // parser error - ignoring payload\n\t    return callback(err, 0, 1);\n\t  }\n\t\n\t  var length = '', n, msg;\n\t\n\t  for (var i = 0, l = data.length; i < l; i++) {\n\t    var chr = data.charAt(i);\n\t\n\t    if (chr !== ':') {\n\t      length += chr;\n\t      continue;\n\t    }\n\t\n\t    if (length === '' || (length != (n = Number(length)))) {\n\t      // parser error - ignoring payload\n\t      return callback(err, 0, 1);\n\t    }\n\t\n\t    msg = data.substr(i + 1, n);\n\t\n\t    if (length != msg.length) {\n\t      // parser error - ignoring payload\n\t      return callback(err, 0, 1);\n\t    }\n\t\n\t    if (msg.length) {\n\t      packet = exports.decodePacket(msg, binaryType, false);\n\t\n\t      if (err.type === packet.type && err.data === packet.data) {\n\t        // parser error in individual packet - ignoring payload\n\t        return callback(err, 0, 1);\n\t      }\n\t\n\t      var ret = callback(packet, i + n, l);\n\t      if (false === ret) return;\n\t    }\n\t\n\t    // advance cursor\n\t    i += n;\n\t    length = '';\n\t  }\n\t\n\t  if (length !== '') {\n\t    // parser error - ignoring payload\n\t    return callback(err, 0, 1);\n\t  }\n\t\n\t};\n\t\n\t/**\n\t * Encodes multiple messages (payload) as binary.\n\t *\n\t * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number\n\t * 255><data>\n\t *\n\t * Example:\n\t * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers\n\t *\n\t * @param {Array} packets\n\t * @return {ArrayBuffer} encoded payload\n\t * @api private\n\t */\n\t\n\texports.encodePayloadAsArrayBuffer = function(packets, callback) {\n\t  if (!packets.length) {\n\t    return callback(new ArrayBuffer(0));\n\t  }\n\t\n\t  function encodeOne(packet, doneCallback) {\n\t    exports.encodePacket(packet, true, true, function(data) {\n\t      return doneCallback(null, data);\n\t    });\n\t  }\n\t\n\t  map(packets, encodeOne, function(err, encodedPackets) {\n\t    var totalLength = encodedPackets.reduce(function(acc, p) {\n\t      var len;\n\t      if (typeof p === 'string'){\n\t        len = p.length;\n\t      } else {\n\t        len = p.byteLength;\n\t      }\n\t      return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2\n\t    }, 0);\n\t\n\t    var resultArray = new Uint8Array(totalLength);\n\t\n\t    var bufferIndex = 0;\n\t    encodedPackets.forEach(function(p) {\n\t      var isString = typeof p === 'string';\n\t      var ab = p;\n\t      if (isString) {\n\t        var view = new Uint8Array(p.length);\n\t        for (var i = 0; i < p.length; i++) {\n\t          view[i] = p.charCodeAt(i);\n\t        }\n\t        ab = view.buffer;\n\t      }\n\t\n\t      if (isString) { // not true binary\n\t        resultArray[bufferIndex++] = 0;\n\t      } else { // true binary\n\t        resultArray[bufferIndex++] = 1;\n\t      }\n\t\n\t      var lenStr = ab.byteLength.toString();\n\t      for (var i = 0; i < lenStr.length; i++) {\n\t        resultArray[bufferIndex++] = parseInt(lenStr[i]);\n\t      }\n\t      resultArray[bufferIndex++] = 255;\n\t\n\t      var view = new Uint8Array(ab);\n\t      for (var i = 0; i < view.length; i++) {\n\t        resultArray[bufferIndex++] = view[i];\n\t      }\n\t    });\n\t\n\t    return callback(resultArray.buffer);\n\t  });\n\t};\n\t\n\t/**\n\t * Encode as Blob\n\t */\n\t\n\texports.encodePayloadAsBlob = function(packets, callback) {\n\t  function encodeOne(packet, doneCallback) {\n\t    exports.encodePacket(packet, true, true, function(encoded) {\n\t      var binaryIdentifier = new Uint8Array(1);\n\t      binaryIdentifier[0] = 1;\n\t      if (typeof encoded === 'string') {\n\t        var view = new Uint8Array(encoded.length);\n\t        for (var i = 0; i < encoded.length; i++) {\n\t          view[i] = encoded.charCodeAt(i);\n\t        }\n\t        encoded = view.buffer;\n\t        binaryIdentifier[0] = 0;\n\t      }\n\t\n\t      var len = (encoded instanceof ArrayBuffer)\n\t        ? encoded.byteLength\n\t        : encoded.size;\n\t\n\t      var lenStr = len.toString();\n\t      var lengthAry = new Uint8Array(lenStr.length + 1);\n\t      for (var i = 0; i < lenStr.length; i++) {\n\t        lengthAry[i] = parseInt(lenStr[i]);\n\t      }\n\t      lengthAry[lenStr.length] = 255;\n\t\n\t      if (Blob) {\n\t        var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);\n\t        doneCallback(null, blob);\n\t      }\n\t    });\n\t  }\n\t\n\t  map(packets, encodeOne, function(err, results) {\n\t    return callback(new Blob(results));\n\t  });\n\t};\n\t\n\t/*\n\t * Decodes data when a payload is maybe expected. Strings are decoded by\n\t * interpreting each byte as a key code for entries marked to start with 0. See\n\t * description of encodePayloadAsBinary\n\t *\n\t * @param {ArrayBuffer} data, callback method\n\t * @api public\n\t */\n\t\n\texports.decodePayloadAsBinary = function (data, binaryType, callback) {\n\t  if (typeof binaryType === 'function') {\n\t    callback = binaryType;\n\t    binaryType = null;\n\t  }\n\t\n\t  var bufferTail = data;\n\t  var buffers = [];\n\t\n\t  while (bufferTail.byteLength > 0) {\n\t    var tailArray = new Uint8Array(bufferTail);\n\t    var isString = tailArray[0] === 0;\n\t    var msgLength = '';\n\t\n\t    for (var i = 1; ; i++) {\n\t      if (tailArray[i] === 255) break;\n\t\n\t      // 310 = char length of Number.MAX_VALUE\n\t      if (msgLength.length > 310) {\n\t        return callback(err, 0, 1);\n\t      }\n\t\n\t      msgLength += tailArray[i];\n\t    }\n\t\n\t    bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);\n\t    msgLength = parseInt(msgLength);\n\t\n\t    var msg = sliceBuffer(bufferTail, 0, msgLength);\n\t    if (isString) {\n\t      try {\n\t        msg = String.fromCharCode.apply(null, new Uint8Array(msg));\n\t      } catch (e) {\n\t        // iPhone Safari doesn't let you apply to typed arrays\n\t        var typed = new Uint8Array(msg);\n\t        msg = '';\n\t        for (var i = 0; i < typed.length; i++) {\n\t          msg += String.fromCharCode(typed[i]);\n\t        }\n\t      }\n\t    }\n\t\n\t    buffers.push(msg);\n\t    bufferTail = sliceBuffer(bufferTail, msgLength);\n\t  }\n\t\n\t  var total = buffers.length;\n\t  buffers.forEach(function(buffer, i) {\n\t    callback(exports.decodePacket(buffer, binaryType, true), i, total);\n\t  });\n\t};\n\n\n/***/ }),\n/* 22 */\n/***/ (function(module, exports) {\n\n\t\n\t/**\n\t * Gets the keys for an object.\n\t *\n\t * @return {Array} keys\n\t * @api private\n\t */\n\t\n\tmodule.exports = Object.keys || function keys (obj){\n\t  var arr = [];\n\t  var has = Object.prototype.hasOwnProperty;\n\t\n\t  for (var i in obj) {\n\t    if (has.call(obj, i)) {\n\t      arr.push(i);\n\t    }\n\t  }\n\t  return arr;\n\t};\n\n\n/***/ }),\n/* 23 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/* global Blob File */\n\t\n\t/*\n\t * Module requirements.\n\t */\n\t\n\tvar isArray = __webpack_require__(10);\n\t\n\tvar toString = Object.prototype.toString;\n\tvar withNativeBlob = typeof Blob === 'function' ||\n\t                        typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]';\n\tvar withNativeFile = typeof File === 'function' ||\n\t                        typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]';\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = hasBinary;\n\t\n\t/**\n\t * Checks for binary data.\n\t *\n\t * Supports Buffer, ArrayBuffer, Blob and File.\n\t *\n\t * @param {Object} anything\n\t * @api public\n\t */\n\t\n\tfunction hasBinary (obj) {\n\t  if (!obj || typeof obj !== 'object') {\n\t    return false;\n\t  }\n\t\n\t  if (isArray(obj)) {\n\t    for (var i = 0, l = obj.length; i < l; i++) {\n\t      if (hasBinary(obj[i])) {\n\t        return true;\n\t      }\n\t    }\n\t    return false;\n\t  }\n\t\n\t  if ((typeof Buffer === 'function' && Buffer.isBuffer && Buffer.isBuffer(obj)) ||\n\t    (typeof ArrayBuffer === 'function' && obj instanceof ArrayBuffer) ||\n\t    (withNativeBlob && obj instanceof Blob) ||\n\t    (withNativeFile && obj instanceof File)\n\t  ) {\n\t    return true;\n\t  }\n\t\n\t  // see: https://github.com/Automattic/has-binary/pull/4\n\t  if (obj.toJSON && typeof obj.toJSON === 'function' && arguments.length === 1) {\n\t    return hasBinary(obj.toJSON(), true);\n\t  }\n\t\n\t  for (var key in obj) {\n\t    if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n\t      return true;\n\t    }\n\t  }\n\t\n\t  return false;\n\t}\n\n\n/***/ }),\n/* 24 */\n/***/ (function(module, exports) {\n\n\t/**\n\t * An abstraction for slicing an arraybuffer even when\n\t * ArrayBuffer.prototype.slice is not supported\n\t *\n\t * @api public\n\t */\n\t\n\tmodule.exports = function(arraybuffer, start, end) {\n\t  var bytes = arraybuffer.byteLength;\n\t  start = start || 0;\n\t  end = end || bytes;\n\t\n\t  if (arraybuffer.slice) { return arraybuffer.slice(start, end); }\n\t\n\t  if (start < 0) { start += bytes; }\n\t  if (end < 0) { end += bytes; }\n\t  if (end > bytes) { end = bytes; }\n\t\n\t  if (start >= bytes || start >= end || bytes === 0) {\n\t    return new ArrayBuffer(0);\n\t  }\n\t\n\t  var abv = new Uint8Array(arraybuffer);\n\t  var result = new Uint8Array(end - start);\n\t  for (var i = start, ii = 0; i < end; i++, ii++) {\n\t    result[ii] = abv[i];\n\t  }\n\t  return result.buffer;\n\t};\n\n\n/***/ }),\n/* 25 */\n/***/ (function(module, exports) {\n\n\tmodule.exports = after\n\t\n\tfunction after(count, callback, err_cb) {\n\t    var bail = false\n\t    err_cb = err_cb || noop\n\t    proxy.count = count\n\t\n\t    return (count === 0) ? callback() : proxy\n\t\n\t    function proxy(err, result) {\n\t        if (proxy.count <= 0) {\n\t            throw new Error('after called too many times')\n\t        }\n\t        --proxy.count\n\t\n\t        // after first error, rest are passed to err_cb\n\t        if (err) {\n\t            bail = true\n\t            callback(err)\n\t            // future error callbacks will go to error handler\n\t            callback = err_cb\n\t        } else if (proxy.count === 0 && !bail) {\n\t            callback(null, result)\n\t        }\n\t    }\n\t}\n\t\n\tfunction noop() {}\n\n\n/***/ }),\n/* 26 */\n/***/ (function(module, exports) {\n\n\t/*! https://mths.be/utf8js v2.1.2 by @mathias */\n\t\n\tvar stringFromCharCode = String.fromCharCode;\n\t\n\t// Taken from https://mths.be/punycode\n\tfunction ucs2decode(string) {\n\t\tvar output = [];\n\t\tvar counter = 0;\n\t\tvar length = string.length;\n\t\tvar value;\n\t\tvar extra;\n\t\twhile (counter < length) {\n\t\t\tvalue = string.charCodeAt(counter++);\n\t\t\tif (value >= 0xD800 && value <= 0xDBFF && counter < length) {\n\t\t\t\t// high surrogate, and there is a next character\n\t\t\t\textra = string.charCodeAt(counter++);\n\t\t\t\tif ((extra & 0xFC00) == 0xDC00) { // low surrogate\n\t\t\t\t\toutput.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);\n\t\t\t\t} else {\n\t\t\t\t\t// unmatched surrogate; only append this code unit, in case the next\n\t\t\t\t\t// code unit is the high surrogate of a surrogate pair\n\t\t\t\t\toutput.push(value);\n\t\t\t\t\tcounter--;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\toutput.push(value);\n\t\t\t}\n\t\t}\n\t\treturn output;\n\t}\n\t\n\t// Taken from https://mths.be/punycode\n\tfunction ucs2encode(array) {\n\t\tvar length = array.length;\n\t\tvar index = -1;\n\t\tvar value;\n\t\tvar output = '';\n\t\twhile (++index < length) {\n\t\t\tvalue = array[index];\n\t\t\tif (value > 0xFFFF) {\n\t\t\t\tvalue -= 0x10000;\n\t\t\t\toutput += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);\n\t\t\t\tvalue = 0xDC00 | value & 0x3FF;\n\t\t\t}\n\t\t\toutput += stringFromCharCode(value);\n\t\t}\n\t\treturn output;\n\t}\n\t\n\tfunction checkScalarValue(codePoint, strict) {\n\t\tif (codePoint >= 0xD800 && codePoint <= 0xDFFF) {\n\t\t\tif (strict) {\n\t\t\t\tthrow Error(\n\t\t\t\t\t'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +\n\t\t\t\t\t' is not a scalar value'\n\t\t\t\t);\n\t\t\t}\n\t\t\treturn false;\n\t\t}\n\t\treturn true;\n\t}\n\t/*--------------------------------------------------------------------------*/\n\t\n\tfunction createByte(codePoint, shift) {\n\t\treturn stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);\n\t}\n\t\n\tfunction encodeCodePoint(codePoint, strict) {\n\t\tif ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence\n\t\t\treturn stringFromCharCode(codePoint);\n\t\t}\n\t\tvar symbol = '';\n\t\tif ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence\n\t\t\tsymbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);\n\t\t}\n\t\telse if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence\n\t\t\tif (!checkScalarValue(codePoint, strict)) {\n\t\t\t\tcodePoint = 0xFFFD;\n\t\t\t}\n\t\t\tsymbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);\n\t\t\tsymbol += createByte(codePoint, 6);\n\t\t}\n\t\telse if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence\n\t\t\tsymbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);\n\t\t\tsymbol += createByte(codePoint, 12);\n\t\t\tsymbol += createByte(codePoint, 6);\n\t\t}\n\t\tsymbol += stringFromCharCode((codePoint & 0x3F) | 0x80);\n\t\treturn symbol;\n\t}\n\t\n\tfunction utf8encode(string, opts) {\n\t\topts = opts || {};\n\t\tvar strict = false !== opts.strict;\n\t\n\t\tvar codePoints = ucs2decode(string);\n\t\tvar length = codePoints.length;\n\t\tvar index = -1;\n\t\tvar codePoint;\n\t\tvar byteString = '';\n\t\twhile (++index < length) {\n\t\t\tcodePoint = codePoints[index];\n\t\t\tbyteString += encodeCodePoint(codePoint, strict);\n\t\t}\n\t\treturn byteString;\n\t}\n\t\n\t/*--------------------------------------------------------------------------*/\n\t\n\tfunction readContinuationByte() {\n\t\tif (byteIndex >= byteCount) {\n\t\t\tthrow Error('Invalid byte index');\n\t\t}\n\t\n\t\tvar continuationByte = byteArray[byteIndex] & 0xFF;\n\t\tbyteIndex++;\n\t\n\t\tif ((continuationByte & 0xC0) == 0x80) {\n\t\t\treturn continuationByte & 0x3F;\n\t\t}\n\t\n\t\t// If we end up here, it’s not a continuation byte\n\t\tthrow Error('Invalid continuation byte');\n\t}\n\t\n\tfunction decodeSymbol(strict) {\n\t\tvar byte1;\n\t\tvar byte2;\n\t\tvar byte3;\n\t\tvar byte4;\n\t\tvar codePoint;\n\t\n\t\tif (byteIndex > byteCount) {\n\t\t\tthrow Error('Invalid byte index');\n\t\t}\n\t\n\t\tif (byteIndex == byteCount) {\n\t\t\treturn false;\n\t\t}\n\t\n\t\t// Read first byte\n\t\tbyte1 = byteArray[byteIndex] & 0xFF;\n\t\tbyteIndex++;\n\t\n\t\t// 1-byte sequence (no continuation bytes)\n\t\tif ((byte1 & 0x80) == 0) {\n\t\t\treturn byte1;\n\t\t}\n\t\n\t\t// 2-byte sequence\n\t\tif ((byte1 & 0xE0) == 0xC0) {\n\t\t\tbyte2 = readContinuationByte();\n\t\t\tcodePoint = ((byte1 & 0x1F) << 6) | byte2;\n\t\t\tif (codePoint >= 0x80) {\n\t\t\t\treturn codePoint;\n\t\t\t} else {\n\t\t\t\tthrow Error('Invalid continuation byte');\n\t\t\t}\n\t\t}\n\t\n\t\t// 3-byte sequence (may include unpaired surrogates)\n\t\tif ((byte1 & 0xF0) == 0xE0) {\n\t\t\tbyte2 = readContinuationByte();\n\t\t\tbyte3 = readContinuationByte();\n\t\t\tcodePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;\n\t\t\tif (codePoint >= 0x0800) {\n\t\t\t\treturn checkScalarValue(codePoint, strict) ? codePoint : 0xFFFD;\n\t\t\t} else {\n\t\t\t\tthrow Error('Invalid continuation byte');\n\t\t\t}\n\t\t}\n\t\n\t\t// 4-byte sequence\n\t\tif ((byte1 & 0xF8) == 0xF0) {\n\t\t\tbyte2 = readContinuationByte();\n\t\t\tbyte3 = readContinuationByte();\n\t\t\tbyte4 = readContinuationByte();\n\t\t\tcodePoint = ((byte1 & 0x07) << 0x12) | (byte2 << 0x0C) |\n\t\t\t\t(byte3 << 0x06) | byte4;\n\t\t\tif (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {\n\t\t\t\treturn codePoint;\n\t\t\t}\n\t\t}\n\t\n\t\tthrow Error('Invalid UTF-8 detected');\n\t}\n\t\n\tvar byteArray;\n\tvar byteCount;\n\tvar byteIndex;\n\tfunction utf8decode(byteString, opts) {\n\t\topts = opts || {};\n\t\tvar strict = false !== opts.strict;\n\t\n\t\tbyteArray = ucs2decode(byteString);\n\t\tbyteCount = byteArray.length;\n\t\tbyteIndex = 0;\n\t\tvar codePoints = [];\n\t\tvar tmp;\n\t\twhile ((tmp = decodeSymbol(strict)) !== false) {\n\t\t\tcodePoints.push(tmp);\n\t\t}\n\t\treturn ucs2encode(codePoints);\n\t}\n\t\n\tmodule.exports = {\n\t\tversion: '2.1.2',\n\t\tencode: utf8encode,\n\t\tdecode: utf8decode\n\t};\n\n\n/***/ }),\n/* 27 */\n/***/ (function(module, exports) {\n\n\t/*\n\t * base64-arraybuffer\n\t * https://github.com/niklasvh/base64-arraybuffer\n\t *\n\t * Copyright (c) 2012 Niklas von Hertzen\n\t * Licensed under the MIT license.\n\t */\n\t(function(){\n\t  \"use strict\";\n\t\n\t  var chars = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\";\n\t\n\t  // Use a lookup table to find the index.\n\t  var lookup = new Uint8Array(256);\n\t  for (var i = 0; i < chars.length; i++) {\n\t    lookup[chars.charCodeAt(i)] = i;\n\t  }\n\t\n\t  exports.encode = function(arraybuffer) {\n\t    var bytes = new Uint8Array(arraybuffer),\n\t    i, len = bytes.length, base64 = \"\";\n\t\n\t    for (i = 0; i < len; i+=3) {\n\t      base64 += chars[bytes[i] >> 2];\n\t      base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n\t      base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n\t      base64 += chars[bytes[i + 2] & 63];\n\t    }\n\t\n\t    if ((len % 3) === 2) {\n\t      base64 = base64.substring(0, base64.length - 1) + \"=\";\n\t    } else if (len % 3 === 1) {\n\t      base64 = base64.substring(0, base64.length - 2) + \"==\";\n\t    }\n\t\n\t    return base64;\n\t  };\n\t\n\t  exports.decode =  function(base64) {\n\t    var bufferLength = base64.length * 0.75,\n\t    len = base64.length, i, p = 0,\n\t    encoded1, encoded2, encoded3, encoded4;\n\t\n\t    if (base64[base64.length - 1] === \"=\") {\n\t      bufferLength--;\n\t      if (base64[base64.length - 2] === \"=\") {\n\t        bufferLength--;\n\t      }\n\t    }\n\t\n\t    var arraybuffer = new ArrayBuffer(bufferLength),\n\t    bytes = new Uint8Array(arraybuffer);\n\t\n\t    for (i = 0; i < len; i+=4) {\n\t      encoded1 = lookup[base64.charCodeAt(i)];\n\t      encoded2 = lookup[base64.charCodeAt(i+1)];\n\t      encoded3 = lookup[base64.charCodeAt(i+2)];\n\t      encoded4 = lookup[base64.charCodeAt(i+3)];\n\t\n\t      bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n\t      bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n\t      bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n\t    }\n\t\n\t    return arraybuffer;\n\t  };\n\t})();\n\n\n/***/ }),\n/* 28 */\n/***/ (function(module, exports) {\n\n\t/**\r\n\t * Create a blob builder even when vendor prefixes exist\r\n\t */\r\n\t\r\n\tvar BlobBuilder = typeof BlobBuilder !== 'undefined' ? BlobBuilder :\r\n\t  typeof WebKitBlobBuilder !== 'undefined' ? WebKitBlobBuilder :\r\n\t  typeof MSBlobBuilder !== 'undefined' ? MSBlobBuilder :\r\n\t  typeof MozBlobBuilder !== 'undefined' ? MozBlobBuilder : \r\n\t  false;\r\n\t\r\n\t/**\r\n\t * Check if Blob constructor is supported\r\n\t */\r\n\t\r\n\tvar blobSupported = (function() {\r\n\t  try {\r\n\t    var a = new Blob(['hi']);\r\n\t    return a.size === 2;\r\n\t  } catch(e) {\r\n\t    return false;\r\n\t  }\r\n\t})();\r\n\t\r\n\t/**\r\n\t * Check if Blob constructor supports ArrayBufferViews\r\n\t * Fails in Safari 6, so we need to map to ArrayBuffers there.\r\n\t */\r\n\t\r\n\tvar blobSupportsArrayBufferView = blobSupported && (function() {\r\n\t  try {\r\n\t    var b = new Blob([new Uint8Array([1,2])]);\r\n\t    return b.size === 2;\r\n\t  } catch(e) {\r\n\t    return false;\r\n\t  }\r\n\t})();\r\n\t\r\n\t/**\r\n\t * Check if BlobBuilder is supported\r\n\t */\r\n\t\r\n\tvar blobBuilderSupported = BlobBuilder\r\n\t  && BlobBuilder.prototype.append\r\n\t  && BlobBuilder.prototype.getBlob;\r\n\t\r\n\t/**\r\n\t * Helper function that maps ArrayBufferViews to ArrayBuffers\r\n\t * Used by BlobBuilder constructor and old browsers that didn't\r\n\t * support it in the Blob constructor.\r\n\t */\r\n\t\r\n\tfunction mapArrayBufferViews(ary) {\r\n\t  return ary.map(function(chunk) {\r\n\t    if (chunk.buffer instanceof ArrayBuffer) {\r\n\t      var buf = chunk.buffer;\r\n\t\r\n\t      // if this is a subarray, make a copy so we only\r\n\t      // include the subarray region from the underlying buffer\r\n\t      if (chunk.byteLength !== buf.byteLength) {\r\n\t        var copy = new Uint8Array(chunk.byteLength);\r\n\t        copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));\r\n\t        buf = copy.buffer;\r\n\t      }\r\n\t\r\n\t      return buf;\r\n\t    }\r\n\t\r\n\t    return chunk;\r\n\t  });\r\n\t}\r\n\t\r\n\tfunction BlobBuilderConstructor(ary, options) {\r\n\t  options = options || {};\r\n\t\r\n\t  var bb = new BlobBuilder();\r\n\t  mapArrayBufferViews(ary).forEach(function(part) {\r\n\t    bb.append(part);\r\n\t  });\r\n\t\r\n\t  return (options.type) ? bb.getBlob(options.type) : bb.getBlob();\r\n\t};\r\n\t\r\n\tfunction BlobConstructor(ary, options) {\r\n\t  return new Blob(mapArrayBufferViews(ary), options || {});\r\n\t};\r\n\t\r\n\tif (typeof Blob !== 'undefined') {\r\n\t  BlobBuilderConstructor.prototype = Blob.prototype;\r\n\t  BlobConstructor.prototype = Blob.prototype;\r\n\t}\r\n\t\r\n\tmodule.exports = (function() {\r\n\t  if (blobSupported) {\r\n\t    return blobSupportsArrayBufferView ? Blob : BlobConstructor;\r\n\t  } else if (blobBuilderSupported) {\r\n\t    return BlobBuilderConstructor;\r\n\t  } else {\r\n\t    return undefined;\r\n\t  }\r\n\t})();\r\n\n\n/***/ }),\n/* 29 */\n/***/ (function(module, exports) {\n\n\t/**\r\n\t * Compiles a querystring\r\n\t * Returns string representation of the object\r\n\t *\r\n\t * @param {Object}\r\n\t * @api private\r\n\t */\r\n\t\r\n\texports.encode = function (obj) {\r\n\t  var str = '';\r\n\t\r\n\t  for (var i in obj) {\r\n\t    if (obj.hasOwnProperty(i)) {\r\n\t      if (str.length) str += '&';\r\n\t      str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\r\n\t    }\r\n\t  }\r\n\t\r\n\t  return str;\r\n\t};\r\n\t\r\n\t/**\r\n\t * Parses a simple querystring into an object\r\n\t *\r\n\t * @param {String} qs\r\n\t * @api private\r\n\t */\r\n\t\r\n\texports.decode = function(qs){\r\n\t  var qry = {};\r\n\t  var pairs = qs.split('&');\r\n\t  for (var i = 0, l = pairs.length; i < l; i++) {\r\n\t    var pair = pairs[i].split('=');\r\n\t    qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\r\n\t  }\r\n\t  return qry;\r\n\t};\r\n\n\n/***/ }),\n/* 30 */\n/***/ (function(module, exports) {\n\n\t\n\tmodule.exports = function(a, b){\n\t  var fn = function(){};\n\t  fn.prototype = b.prototype;\n\t  a.prototype = new fn;\n\t  a.prototype.constructor = a;\n\t};\n\n/***/ }),\n/* 31 */\n/***/ (function(module, exports) {\n\n\t'use strict';\n\t\n\tvar alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('')\n\t  , length = 64\n\t  , map = {}\n\t  , seed = 0\n\t  , i = 0\n\t  , prev;\n\t\n\t/**\n\t * Return a string representing the specified number.\n\t *\n\t * @param {Number} num The number to convert.\n\t * @returns {String} The string representation of the number.\n\t * @api public\n\t */\n\tfunction encode(num) {\n\t  var encoded = '';\n\t\n\t  do {\n\t    encoded = alphabet[num % length] + encoded;\n\t    num = Math.floor(num / length);\n\t  } while (num > 0);\n\t\n\t  return encoded;\n\t}\n\t\n\t/**\n\t * Return the integer value specified by the given string.\n\t *\n\t * @param {String} str The string to convert.\n\t * @returns {Number} The integer value represented by the string.\n\t * @api public\n\t */\n\tfunction decode(str) {\n\t  var decoded = 0;\n\t\n\t  for (i = 0; i < str.length; i++) {\n\t    decoded = decoded * length + map[str.charAt(i)];\n\t  }\n\t\n\t  return decoded;\n\t}\n\t\n\t/**\n\t * Yeast: A tiny growing id generator.\n\t *\n\t * @returns {String} A unique id.\n\t * @api public\n\t */\n\tfunction yeast() {\n\t  var now = encode(+new Date());\n\t\n\t  if (now !== prev) return seed = 0, prev = now;\n\t  return now +'.'+ encode(seed++);\n\t}\n\t\n\t//\n\t// Map each character to its index.\n\t//\n\tfor (; i < length; i++) map[alphabet[i]] = i;\n\t\n\t//\n\t// Expose the `yeast`, `encode` and `decode` functions.\n\t//\n\tyeast.encode = encode;\n\tyeast.decode = decode;\n\tmodule.exports = yeast;\n\n\n/***/ }),\n/* 32 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/* WEBPACK VAR INJECTION */(function(global) {/**\n\t * Module requirements.\n\t */\n\t\n\tvar Polling = __webpack_require__(19);\n\tvar inherit = __webpack_require__(30);\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = JSONPPolling;\n\t\n\t/**\n\t * Cached regular expressions.\n\t */\n\t\n\tvar rNewline = /\\n/g;\n\tvar rEscapedNewline = /\\\\n/g;\n\t\n\t/**\n\t * Global JSONP callbacks.\n\t */\n\t\n\tvar callbacks;\n\t\n\t/**\n\t * Noop.\n\t */\n\t\n\tfunction empty () { }\n\t\n\t/**\n\t * Until https://github.com/tc39/proposal-global is shipped.\n\t */\n\tfunction glob () {\n\t  return typeof self !== 'undefined' ? self\n\t      : typeof window !== 'undefined' ? window\n\t      : typeof global !== 'undefined' ? global : {};\n\t}\n\t\n\t/**\n\t * JSONP Polling constructor.\n\t *\n\t * @param {Object} opts.\n\t * @api public\n\t */\n\t\n\tfunction JSONPPolling (opts) {\n\t  Polling.call(this, opts);\n\t\n\t  this.query = this.query || {};\n\t\n\t  // define global callbacks array if not present\n\t  // we do this here (lazily) to avoid unneeded global pollution\n\t  if (!callbacks) {\n\t    // we need to consider multiple engines in the same page\n\t    var global = glob();\n\t    callbacks = global.___eio = (global.___eio || []);\n\t  }\n\t\n\t  // callback identifier\n\t  this.index = callbacks.length;\n\t\n\t  // add callback to jsonp global\n\t  var self = this;\n\t  callbacks.push(function (msg) {\n\t    self.onData(msg);\n\t  });\n\t\n\t  // append to query string\n\t  this.query.j = this.index;\n\t\n\t  // prevent spurious errors from being emitted when the window is unloaded\n\t  if (typeof addEventListener === 'function') {\n\t    addEventListener('beforeunload', function () {\n\t      if (self.script) self.script.onerror = empty;\n\t    }, false);\n\t  }\n\t}\n\t\n\t/**\n\t * Inherits from Polling.\n\t */\n\t\n\tinherit(JSONPPolling, Polling);\n\t\n\t/*\n\t * JSONP only supports binary as base64 encoded strings\n\t */\n\t\n\tJSONPPolling.prototype.supportsBinary = false;\n\t\n\t/**\n\t * Closes the socket.\n\t *\n\t * @api private\n\t */\n\t\n\tJSONPPolling.prototype.doClose = function () {\n\t  if (this.script) {\n\t    this.script.parentNode.removeChild(this.script);\n\t    this.script = null;\n\t  }\n\t\n\t  if (this.form) {\n\t    this.form.parentNode.removeChild(this.form);\n\t    this.form = null;\n\t    this.iframe = null;\n\t  }\n\t\n\t  Polling.prototype.doClose.call(this);\n\t};\n\t\n\t/**\n\t * Starts a poll cycle.\n\t *\n\t * @api private\n\t */\n\t\n\tJSONPPolling.prototype.doPoll = function () {\n\t  var self = this;\n\t  var script = document.createElement('script');\n\t\n\t  if (this.script) {\n\t    this.script.parentNode.removeChild(this.script);\n\t    this.script = null;\n\t  }\n\t\n\t  script.async = true;\n\t  script.src = this.uri();\n\t  script.onerror = function (e) {\n\t    self.onError('jsonp poll error', e);\n\t  };\n\t\n\t  var insertAt = document.getElementsByTagName('script')[0];\n\t  if (insertAt) {\n\t    insertAt.parentNode.insertBefore(script, insertAt);\n\t  } else {\n\t    (document.head || document.body).appendChild(script);\n\t  }\n\t  this.script = script;\n\t\n\t  var isUAgecko = 'undefined' !== typeof navigator && /gecko/i.test(navigator.userAgent);\n\t\n\t  if (isUAgecko) {\n\t    setTimeout(function () {\n\t      var iframe = document.createElement('iframe');\n\t      document.body.appendChild(iframe);\n\t      document.body.removeChild(iframe);\n\t    }, 100);\n\t  }\n\t};\n\t\n\t/**\n\t * Writes with a hidden iframe.\n\t *\n\t * @param {String} data to send\n\t * @param {Function} called upon flush.\n\t * @api private\n\t */\n\t\n\tJSONPPolling.prototype.doWrite = function (data, fn) {\n\t  var self = this;\n\t\n\t  if (!this.form) {\n\t    var form = document.createElement('form');\n\t    var area = document.createElement('textarea');\n\t    var id = this.iframeId = 'eio_iframe_' + this.index;\n\t    var iframe;\n\t\n\t    form.className = 'socketio';\n\t    form.style.position = 'absolute';\n\t    form.style.top = '-1000px';\n\t    form.style.left = '-1000px';\n\t    form.target = id;\n\t    form.method = 'POST';\n\t    form.setAttribute('accept-charset', 'utf-8');\n\t    area.name = 'd';\n\t    form.appendChild(area);\n\t    document.body.appendChild(form);\n\t\n\t    this.form = form;\n\t    this.area = area;\n\t  }\n\t\n\t  this.form.action = this.uri();\n\t\n\t  function complete () {\n\t    initIframe();\n\t    fn();\n\t  }\n\t\n\t  function initIframe () {\n\t    if (self.iframe) {\n\t      try {\n\t        self.form.removeChild(self.iframe);\n\t      } catch (e) {\n\t        self.onError('jsonp polling iframe removal error', e);\n\t      }\n\t    }\n\t\n\t    try {\n\t      // ie6 dynamic iframes with target=\"\" support (thanks Chris Lambacher)\n\t      var html = '<iframe src=\"javascript:0\" name=\"' + self.iframeId + '\">';\n\t      iframe = document.createElement(html);\n\t    } catch (e) {\n\t      iframe = document.createElement('iframe');\n\t      iframe.name = self.iframeId;\n\t      iframe.src = 'javascript:0';\n\t    }\n\t\n\t    iframe.id = self.iframeId;\n\t\n\t    self.form.appendChild(iframe);\n\t    self.iframe = iframe;\n\t  }\n\t\n\t  initIframe();\n\t\n\t  // escape \\n to prevent it from being converted into \\r\\n by some UAs\n\t  // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side\n\t  data = data.replace(rEscapedNewline, '\\\\\\n');\n\t  this.area.value = data.replace(rNewline, '\\\\n');\n\t\n\t  try {\n\t    this.form.submit();\n\t  } catch (e) {}\n\t\n\t  if (this.iframe.attachEvent) {\n\t    this.iframe.onreadystatechange = function () {\n\t      if (self.iframe.readyState === 'complete') {\n\t        complete();\n\t      }\n\t    };\n\t  } else {\n\t    this.iframe.onload = complete;\n\t  }\n\t};\n\t\n\t/* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }())))\n\n/***/ }),\n/* 33 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar Transport = __webpack_require__(20);\n\tvar parser = __webpack_require__(21);\n\tvar parseqs = __webpack_require__(29);\n\tvar inherit = __webpack_require__(30);\n\tvar yeast = __webpack_require__(31);\n\tvar debug = __webpack_require__(3)('engine.io-client:websocket');\n\tvar BrowserWebSocket, NodeWebSocket;\n\tif (typeof self === 'undefined') {\n\t  try {\n\t    NodeWebSocket = __webpack_require__(34);\n\t  } catch (e) { }\n\t} else {\n\t  BrowserWebSocket = self.WebSocket || self.MozWebSocket;\n\t}\n\t\n\t/**\n\t * Get either the `WebSocket` or `MozWebSocket` globals\n\t * in the browser or try to resolve WebSocket-compatible\n\t * interface exposed by `ws` for Node-like environment.\n\t */\n\t\n\tvar WebSocket = BrowserWebSocket || NodeWebSocket;\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = WS;\n\t\n\t/**\n\t * WebSocket transport constructor.\n\t *\n\t * @api {Object} connection options\n\t * @api public\n\t */\n\t\n\tfunction WS (opts) {\n\t  var forceBase64 = (opts && opts.forceBase64);\n\t  if (forceBase64) {\n\t    this.supportsBinary = false;\n\t  }\n\t  this.perMessageDeflate = opts.perMessageDeflate;\n\t  this.usingBrowserWebSocket = BrowserWebSocket && !opts.forceNode;\n\t  this.protocols = opts.protocols;\n\t  if (!this.usingBrowserWebSocket) {\n\t    WebSocket = NodeWebSocket;\n\t  }\n\t  Transport.call(this, opts);\n\t}\n\t\n\t/**\n\t * Inherits from Transport.\n\t */\n\t\n\tinherit(WS, Transport);\n\t\n\t/**\n\t * Transport name.\n\t *\n\t * @api public\n\t */\n\t\n\tWS.prototype.name = 'websocket';\n\t\n\t/*\n\t * WebSockets support binary\n\t */\n\t\n\tWS.prototype.supportsBinary = true;\n\t\n\t/**\n\t * Opens socket.\n\t *\n\t * @api private\n\t */\n\t\n\tWS.prototype.doOpen = function () {\n\t  if (!this.check()) {\n\t    // let probe timeout\n\t    return;\n\t  }\n\t\n\t  var uri = this.uri();\n\t  var protocols = this.protocols;\n\t  var opts = {\n\t    agent: this.agent,\n\t    perMessageDeflate: this.perMessageDeflate\n\t  };\n\t\n\t  // SSL options for Node.js client\n\t  opts.pfx = this.pfx;\n\t  opts.key = this.key;\n\t  opts.passphrase = this.passphrase;\n\t  opts.cert = this.cert;\n\t  opts.ca = this.ca;\n\t  opts.ciphers = this.ciphers;\n\t  opts.rejectUnauthorized = this.rejectUnauthorized;\n\t  if (this.extraHeaders) {\n\t    opts.headers = this.extraHeaders;\n\t  }\n\t  if (this.localAddress) {\n\t    opts.localAddress = this.localAddress;\n\t  }\n\t\n\t  try {\n\t    this.ws = this.usingBrowserWebSocket && !this.isReactNative ? (protocols ? new WebSocket(uri, protocols) : new WebSocket(uri)) : new WebSocket(uri, protocols, opts);\n\t  } catch (err) {\n\t    return this.emit('error', err);\n\t  }\n\t\n\t  if (this.ws.binaryType === undefined) {\n\t    this.supportsBinary = false;\n\t  }\n\t\n\t  if (this.ws.supports && this.ws.supports.binary) {\n\t    this.supportsBinary = true;\n\t    this.ws.binaryType = 'nodebuffer';\n\t  } else {\n\t    this.ws.binaryType = 'arraybuffer';\n\t  }\n\t\n\t  this.addEventListeners();\n\t};\n\t\n\t/**\n\t * Adds event listeners to the socket\n\t *\n\t * @api private\n\t */\n\t\n\tWS.prototype.addEventListeners = function () {\n\t  var self = this;\n\t\n\t  this.ws.onopen = function () {\n\t    self.onOpen();\n\t  };\n\t  this.ws.onclose = function () {\n\t    self.onClose();\n\t  };\n\t  this.ws.onmessage = function (ev) {\n\t    self.onData(ev.data);\n\t  };\n\t  this.ws.onerror = function (e) {\n\t    self.onError('websocket error', e);\n\t  };\n\t};\n\t\n\t/**\n\t * Writes data to socket.\n\t *\n\t * @param {Array} array of packets.\n\t * @api private\n\t */\n\t\n\tWS.prototype.write = function (packets) {\n\t  var self = this;\n\t  this.writable = false;\n\t\n\t  // encodePacket efficient as it uses WS framing\n\t  // no need for encodePayload\n\t  var total = packets.length;\n\t  for (var i = 0, l = total; i < l; i++) {\n\t    (function (packet) {\n\t      parser.encodePacket(packet, self.supportsBinary, function (data) {\n\t        if (!self.usingBrowserWebSocket) {\n\t          // always create a new object (GH-437)\n\t          var opts = {};\n\t          if (packet.options) {\n\t            opts.compress = packet.options.compress;\n\t          }\n\t\n\t          if (self.perMessageDeflate) {\n\t            var len = 'string' === typeof data ? Buffer.byteLength(data) : data.length;\n\t            if (len < self.perMessageDeflate.threshold) {\n\t              opts.compress = false;\n\t            }\n\t          }\n\t        }\n\t\n\t        // Sometimes the websocket has already been closed but the browser didn't\n\t        // have a chance of informing us about it yet, in that case send will\n\t        // throw an error\n\t        try {\n\t          if (self.usingBrowserWebSocket) {\n\t            // TypeError is thrown when passing the second argument on Safari\n\t            self.ws.send(data);\n\t          } else {\n\t            self.ws.send(data, opts);\n\t          }\n\t        } catch (e) {\n\t          debug('websocket closed before onclose event');\n\t        }\n\t\n\t        --total || done();\n\t      });\n\t    })(packets[i]);\n\t  }\n\t\n\t  function done () {\n\t    self.emit('flush');\n\t\n\t    // fake drain\n\t    // defer to next tick to allow Socket to clear writeBuffer\n\t    setTimeout(function () {\n\t      self.writable = true;\n\t      self.emit('drain');\n\t    }, 0);\n\t  }\n\t};\n\t\n\t/**\n\t * Called upon close\n\t *\n\t * @api private\n\t */\n\t\n\tWS.prototype.onClose = function () {\n\t  Transport.prototype.onClose.call(this);\n\t};\n\t\n\t/**\n\t * Closes socket.\n\t *\n\t * @api private\n\t */\n\t\n\tWS.prototype.doClose = function () {\n\t  if (typeof this.ws !== 'undefined') {\n\t    this.ws.close();\n\t  }\n\t};\n\t\n\t/**\n\t * Generates uri for connection.\n\t *\n\t * @api private\n\t */\n\t\n\tWS.prototype.uri = function () {\n\t  var query = this.query || {};\n\t  var schema = this.secure ? 'wss' : 'ws';\n\t  var port = '';\n\t\n\t  // avoid port if default for schema\n\t  if (this.port && (('wss' === schema && Number(this.port) !== 443) ||\n\t    ('ws' === schema && Number(this.port) !== 80))) {\n\t    port = ':' + this.port;\n\t  }\n\t\n\t  // append timestamp to URI\n\t  if (this.timestampRequests) {\n\t    query[this.timestampParam] = yeast();\n\t  }\n\t\n\t  // communicate binary support capabilities\n\t  if (!this.supportsBinary) {\n\t    query.b64 = 1;\n\t  }\n\t\n\t  query = parseqs.encode(query);\n\t\n\t  // prepend ? to query\n\t  if (query.length) {\n\t    query = '?' + query;\n\t  }\n\t\n\t  var ipv6 = this.hostname.indexOf(':') !== -1;\n\t  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;\n\t};\n\t\n\t/**\n\t * Feature detection for WebSocket.\n\t *\n\t * @return {Boolean} whether this transport is available.\n\t * @api public\n\t */\n\t\n\tWS.prototype.check = function () {\n\t  return !!WebSocket && !('__initialize' in WebSocket && this.name === WS.prototype.name);\n\t};\n\n\n/***/ }),\n/* 34 */\n/***/ (function(module, exports) {\n\n\t/* (ignored) */\n\n/***/ }),\n/* 35 */\n/***/ (function(module, exports) {\n\n\t\n\tvar indexOf = [].indexOf;\n\t\n\tmodule.exports = function(arr, obj){\n\t  if (indexOf) return arr.indexOf(obj);\n\t  for (var i = 0; i < arr.length; ++i) {\n\t    if (arr[i] === obj) return i;\n\t  }\n\t  return -1;\n\t};\n\n/***/ }),\n/* 36 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\t\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar parser = __webpack_require__(7);\n\tvar Emitter = __webpack_require__(8);\n\tvar toArray = __webpack_require__(37);\n\tvar on = __webpack_require__(38);\n\tvar bind = __webpack_require__(39);\n\tvar debug = __webpack_require__(3)('socket.io-client:socket');\n\tvar parseqs = __webpack_require__(29);\n\tvar hasBin = __webpack_require__(23);\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = exports = Socket;\n\t\n\t/**\n\t * Internal events (blacklisted).\n\t * These events can't be emitted by the user.\n\t *\n\t * @api private\n\t */\n\t\n\tvar events = {\n\t  connect: 1,\n\t  connect_error: 1,\n\t  connect_timeout: 1,\n\t  connecting: 1,\n\t  disconnect: 1,\n\t  error: 1,\n\t  reconnect: 1,\n\t  reconnect_attempt: 1,\n\t  reconnect_failed: 1,\n\t  reconnect_error: 1,\n\t  reconnecting: 1,\n\t  ping: 1,\n\t  pong: 1\n\t};\n\t\n\t/**\n\t * Shortcut to `Emitter#emit`.\n\t */\n\t\n\tvar emit = Emitter.prototype.emit;\n\t\n\t/**\n\t * `Socket` constructor.\n\t *\n\t * @api public\n\t */\n\t\n\tfunction Socket(io, nsp, opts) {\n\t  this.io = io;\n\t  this.nsp = nsp;\n\t  this.json = this; // compat\n\t  this.ids = 0;\n\t  this.acks = {};\n\t  this.receiveBuffer = [];\n\t  this.sendBuffer = [];\n\t  this.connected = false;\n\t  this.disconnected = true;\n\t  this.flags = {};\n\t  if (opts && opts.query) {\n\t    this.query = opts.query;\n\t  }\n\t  if (this.io.autoConnect) this.open();\n\t}\n\t\n\t/**\n\t * Mix in `Emitter`.\n\t */\n\t\n\tEmitter(Socket.prototype);\n\t\n\t/**\n\t * Subscribe to open, close and packet events\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.subEvents = function () {\n\t  if (this.subs) return;\n\t\n\t  var io = this.io;\n\t  this.subs = [on(io, 'open', bind(this, 'onopen')), on(io, 'packet', bind(this, 'onpacket')), on(io, 'close', bind(this, 'onclose'))];\n\t};\n\t\n\t/**\n\t * \"Opens\" the socket.\n\t *\n\t * @api public\n\t */\n\t\n\tSocket.prototype.open = Socket.prototype.connect = function () {\n\t  if (this.connected) return this;\n\t\n\t  this.subEvents();\n\t  this.io.open(); // ensure open\n\t  if ('open' === this.io.readyState) this.onopen();\n\t  this.emit('connecting');\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sends a `message` event.\n\t *\n\t * @return {Socket} self\n\t * @api public\n\t */\n\t\n\tSocket.prototype.send = function () {\n\t  var args = toArray(arguments);\n\t  args.unshift('message');\n\t  this.emit.apply(this, args);\n\t  return this;\n\t};\n\t\n\t/**\n\t * Override `emit`.\n\t * If the event is in `events`, it's emitted normally.\n\t *\n\t * @param {String} event name\n\t * @return {Socket} self\n\t * @api public\n\t */\n\t\n\tSocket.prototype.emit = function (ev) {\n\t  if (events.hasOwnProperty(ev)) {\n\t    emit.apply(this, arguments);\n\t    return this;\n\t  }\n\t\n\t  var args = toArray(arguments);\n\t  var packet = {\n\t    type: (this.flags.binary !== undefined ? this.flags.binary : hasBin(args)) ? parser.BINARY_EVENT : parser.EVENT,\n\t    data: args\n\t  };\n\t\n\t  packet.options = {};\n\t  packet.options.compress = !this.flags || false !== this.flags.compress;\n\t\n\t  // event ack callback\n\t  if ('function' === typeof args[args.length - 1]) {\n\t    debug('emitting packet with ack id %d', this.ids);\n\t    this.acks[this.ids] = args.pop();\n\t    packet.id = this.ids++;\n\t  }\n\t\n\t  if (this.connected) {\n\t    this.packet(packet);\n\t  } else {\n\t    this.sendBuffer.push(packet);\n\t  }\n\t\n\t  this.flags = {};\n\t\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sends a packet.\n\t *\n\t * @param {Object} packet\n\t * @api private\n\t */\n\t\n\tSocket.prototype.packet = function (packet) {\n\t  packet.nsp = this.nsp;\n\t  this.io.packet(packet);\n\t};\n\t\n\t/**\n\t * Called upon engine `open`.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onopen = function () {\n\t  debug('transport is open - connecting');\n\t\n\t  // write connect packet if necessary\n\t  if ('/' !== this.nsp) {\n\t    if (this.query) {\n\t      var query = _typeof(this.query) === 'object' ? parseqs.encode(this.query) : this.query;\n\t      debug('sending connect packet with query %s', query);\n\t      this.packet({ type: parser.CONNECT, query: query });\n\t    } else {\n\t      this.packet({ type: parser.CONNECT });\n\t    }\n\t  }\n\t};\n\t\n\t/**\n\t * Called upon engine `close`.\n\t *\n\t * @param {String} reason\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onclose = function (reason) {\n\t  debug('close (%s)', reason);\n\t  this.connected = false;\n\t  this.disconnected = true;\n\t  delete this.id;\n\t  this.emit('disconnect', reason);\n\t};\n\t\n\t/**\n\t * Called with socket packet.\n\t *\n\t * @param {Object} packet\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onpacket = function (packet) {\n\t  var sameNamespace = packet.nsp === this.nsp;\n\t  var rootNamespaceError = packet.type === parser.ERROR && packet.nsp === '/';\n\t\n\t  if (!sameNamespace && !rootNamespaceError) return;\n\t\n\t  switch (packet.type) {\n\t    case parser.CONNECT:\n\t      this.onconnect();\n\t      break;\n\t\n\t    case parser.EVENT:\n\t      this.onevent(packet);\n\t      break;\n\t\n\t    case parser.BINARY_EVENT:\n\t      this.onevent(packet);\n\t      break;\n\t\n\t    case parser.ACK:\n\t      this.onack(packet);\n\t      break;\n\t\n\t    case parser.BINARY_ACK:\n\t      this.onack(packet);\n\t      break;\n\t\n\t    case parser.DISCONNECT:\n\t      this.ondisconnect();\n\t      break;\n\t\n\t    case parser.ERROR:\n\t      this.emit('error', packet.data);\n\t      break;\n\t  }\n\t};\n\t\n\t/**\n\t * Called upon a server event.\n\t *\n\t * @param {Object} packet\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onevent = function (packet) {\n\t  var args = packet.data || [];\n\t  debug('emitting event %j', args);\n\t\n\t  if (null != packet.id) {\n\t    debug('attaching ack callback to event');\n\t    args.push(this.ack(packet.id));\n\t  }\n\t\n\t  if (this.connected) {\n\t    emit.apply(this, args);\n\t  } else {\n\t    this.receiveBuffer.push(args);\n\t  }\n\t};\n\t\n\t/**\n\t * Produces an ack callback to emit with an event.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.ack = function (id) {\n\t  var self = this;\n\t  var sent = false;\n\t  return function () {\n\t    // prevent double callbacks\n\t    if (sent) return;\n\t    sent = true;\n\t    var args = toArray(arguments);\n\t    debug('sending ack %j', args);\n\t\n\t    self.packet({\n\t      type: hasBin(args) ? parser.BINARY_ACK : parser.ACK,\n\t      id: id,\n\t      data: args\n\t    });\n\t  };\n\t};\n\t\n\t/**\n\t * Called upon a server acknowlegement.\n\t *\n\t * @param {Object} packet\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onack = function (packet) {\n\t  var ack = this.acks[packet.id];\n\t  if ('function' === typeof ack) {\n\t    debug('calling ack %s with %j', packet.id, packet.data);\n\t    ack.apply(this, packet.data);\n\t    delete this.acks[packet.id];\n\t  } else {\n\t    debug('bad ack %s', packet.id);\n\t  }\n\t};\n\t\n\t/**\n\t * Called upon server connect.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onconnect = function () {\n\t  this.connected = true;\n\t  this.disconnected = false;\n\t  this.emit('connect');\n\t  this.emitBuffered();\n\t};\n\t\n\t/**\n\t * Emit buffered events (received and emitted).\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.emitBuffered = function () {\n\t  var i;\n\t  for (i = 0; i < this.receiveBuffer.length; i++) {\n\t    emit.apply(this, this.receiveBuffer[i]);\n\t  }\n\t  this.receiveBuffer = [];\n\t\n\t  for (i = 0; i < this.sendBuffer.length; i++) {\n\t    this.packet(this.sendBuffer[i]);\n\t  }\n\t  this.sendBuffer = [];\n\t};\n\t\n\t/**\n\t * Called upon server disconnect.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.ondisconnect = function () {\n\t  debug('server disconnect (%s)', this.nsp);\n\t  this.destroy();\n\t  this.onclose('io server disconnect');\n\t};\n\t\n\t/**\n\t * Called upon forced client/server side disconnections,\n\t * this method ensures the manager stops tracking us and\n\t * that reconnections don't get triggered for this.\n\t *\n\t * @api private.\n\t */\n\t\n\tSocket.prototype.destroy = function () {\n\t  if (this.subs) {\n\t    // clean subscriptions to avoid reconnections\n\t    for (var i = 0; i < this.subs.length; i++) {\n\t      this.subs[i].destroy();\n\t    }\n\t    this.subs = null;\n\t  }\n\t\n\t  this.io.destroy(this);\n\t};\n\t\n\t/**\n\t * Disconnects the socket manually.\n\t *\n\t * @return {Socket} self\n\t * @api public\n\t */\n\t\n\tSocket.prototype.close = Socket.prototype.disconnect = function () {\n\t  if (this.connected) {\n\t    debug('performing disconnect (%s)', this.nsp);\n\t    this.packet({ type: parser.DISCONNECT });\n\t  }\n\t\n\t  // remove socket from pool\n\t  this.destroy();\n\t\n\t  if (this.connected) {\n\t    // fire events\n\t    this.onclose('io client disconnect');\n\t  }\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sets the compress flag.\n\t *\n\t * @param {Boolean} if `true`, compresses the sending data\n\t * @return {Socket} self\n\t * @api public\n\t */\n\t\n\tSocket.prototype.compress = function (compress) {\n\t  this.flags.compress = compress;\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sets the binary flag\n\t *\n\t * @param {Boolean} whether the emitted data contains binary\n\t * @return {Socket} self\n\t * @api public\n\t */\n\t\n\tSocket.prototype.binary = function (binary) {\n\t  this.flags.binary = binary;\n\t  return this;\n\t};\n\n/***/ }),\n/* 37 */\n/***/ (function(module, exports) {\n\n\tmodule.exports = toArray\n\t\n\tfunction toArray(list, index) {\n\t    var array = []\n\t\n\t    index = index || 0\n\t\n\t    for (var i = index || 0; i < list.length; i++) {\n\t        array[i - index] = list[i]\n\t    }\n\t\n\t    return array\n\t}\n\n\n/***/ }),\n/* 38 */\n/***/ (function(module, exports) {\n\n\t\"use strict\";\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = on;\n\t\n\t/**\n\t * Helper for subscriptions.\n\t *\n\t * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`\n\t * @param {String} event name\n\t * @param {Function} callback\n\t * @api public\n\t */\n\t\n\tfunction on(obj, ev, fn) {\n\t  obj.on(ev, fn);\n\t  return {\n\t    destroy: function destroy() {\n\t      obj.removeListener(ev, fn);\n\t    }\n\t  };\n\t}\n\n/***/ }),\n/* 39 */\n/***/ (function(module, exports) {\n\n\t/**\n\t * Slice reference.\n\t */\n\t\n\tvar slice = [].slice;\n\t\n\t/**\n\t * Bind `obj` to `fn`.\n\t *\n\t * @param {Object} obj\n\t * @param {Function|String} fn or string\n\t * @return {Function}\n\t * @api public\n\t */\n\t\n\tmodule.exports = function(obj, fn){\n\t  if ('string' == typeof fn) fn = obj[fn];\n\t  if ('function' != typeof fn) throw new Error('bind() requires a function');\n\t  var args = slice.call(arguments, 2);\n\t  return function(){\n\t    return fn.apply(obj, args.concat(slice.call(arguments)));\n\t  }\n\t};\n\n\n/***/ }),\n/* 40 */\n/***/ (function(module, exports) {\n\n\t\n\t/**\n\t * Expose `Backoff`.\n\t */\n\t\n\tmodule.exports = Backoff;\n\t\n\t/**\n\t * Initialize backoff timer with `opts`.\n\t *\n\t * - `min` initial timeout in milliseconds [100]\n\t * - `max` max timeout [10000]\n\t * - `jitter` [0]\n\t * - `factor` [2]\n\t *\n\t * @param {Object} opts\n\t * @api public\n\t */\n\t\n\tfunction Backoff(opts) {\n\t  opts = opts || {};\n\t  this.ms = opts.min || 100;\n\t  this.max = opts.max || 10000;\n\t  this.factor = opts.factor || 2;\n\t  this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n\t  this.attempts = 0;\n\t}\n\t\n\t/**\n\t * Return the backoff duration.\n\t *\n\t * @return {Number}\n\t * @api public\n\t */\n\t\n\tBackoff.prototype.duration = function(){\n\t  var ms = this.ms * Math.pow(this.factor, this.attempts++);\n\t  if (this.jitter) {\n\t    var rand =  Math.random();\n\t    var deviation = Math.floor(rand * this.jitter * ms);\n\t    ms = (Math.floor(rand * 10) & 1) == 0  ? ms - deviation : ms + deviation;\n\t  }\n\t  return Math.min(ms, this.max) | 0;\n\t};\n\t\n\t/**\n\t * Reset the number of attempts.\n\t *\n\t * @api public\n\t */\n\t\n\tBackoff.prototype.reset = function(){\n\t  this.attempts = 0;\n\t};\n\t\n\t/**\n\t * Set the minimum duration\n\t *\n\t * @api public\n\t */\n\t\n\tBackoff.prototype.setMin = function(min){\n\t  this.ms = min;\n\t};\n\t\n\t/**\n\t * Set the maximum duration\n\t *\n\t * @api public\n\t */\n\t\n\tBackoff.prototype.setMax = function(max){\n\t  this.max = max;\n\t};\n\t\n\t/**\n\t * Set the jitter\n\t *\n\t * @api public\n\t */\n\t\n\tBackoff.prototype.setJitter = function(jitter){\n\t  this.jitter = jitter;\n\t};\n\t\n\n\n/***/ })\n/******/ ])\n});\n;\n\n\n// WEBPACK FOOTER //\n// socket.io.js"," \t// The module cache\n \tvar installedModules = {};\n\n \t// The require function\n \tfunction __webpack_require__(moduleId) {\n\n \t\t// Check if module is in cache\n \t\tif(installedModules[moduleId])\n \t\t\treturn installedModules[moduleId].exports;\n\n \t\t// Create a new module (and put it into the cache)\n \t\tvar module = installedModules[moduleId] = {\n \t\t\texports: {},\n \t\t\tid: moduleId,\n \t\t\tloaded: false\n \t\t};\n\n \t\t// Execute the module function\n \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n \t\t// Flag the module as loaded\n \t\tmodule.loaded = true;\n\n \t\t// Return the exports of the module\n \t\treturn module.exports;\n \t}\n\n\n \t// expose the modules object (__webpack_modules__)\n \t__webpack_require__.m = modules;\n\n \t// expose the module cache\n \t__webpack_require__.c = installedModules;\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(0);\n\n\n\n// WEBPACK FOOTER //\n// webpack/bootstrap fca06ab6cc8ba9aaccf0","\n/**\n * Module dependencies.\n */\n\nvar url = require('./url');\nvar parser = require('socket.io-parser');\nvar Manager = require('./manager');\nvar debug = require('debug')('socket.io-client');\n\n/**\n * Module exports.\n */\n\nmodule.exports = exports = lookup;\n\n/**\n * Managers cache.\n */\n\nvar cache = exports.managers = {};\n\n/**\n * Looks up an existing `Manager` for multiplexing.\n * If the user summons:\n *\n *   `io('http://localhost/a');`\n *   `io('http://localhost/b');`\n *\n * We reuse the existing instance based on same scheme/port/host,\n * and we initialize sockets for each namespace.\n *\n * @api public\n */\n\nfunction lookup (uri, opts) {\n  if (typeof uri === 'object') {\n    opts = uri;\n    uri = undefined;\n  }\n\n  opts = opts || {};\n\n  var parsed = url(uri);\n  var source = parsed.source;\n  var id = parsed.id;\n  var path = parsed.path;\n  var sameNamespace = cache[id] && path in cache[id].nsps;\n  var newConnection = opts.forceNew || opts['force new connection'] ||\n                      false === opts.multiplex || sameNamespace;\n\n  var io;\n\n  if (newConnection) {\n    debug('ignoring socket cache for %s', source);\n    io = Manager(source, opts);\n  } else {\n    if (!cache[id]) {\n      debug('new io instance for %s', source);\n      cache[id] = Manager(source, opts);\n    }\n    io = cache[id];\n  }\n  if (parsed.query && !opts.query) {\n    opts.query = parsed.query;\n  }\n  return io.socket(parsed.path, opts);\n}\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nexports.protocol = parser.protocol;\n\n/**\n * `connect`.\n *\n * @param {String} uri\n * @api public\n */\n\nexports.connect = lookup;\n\n/**\n * Expose constructors for standalone build.\n *\n * @api public\n */\n\nexports.Manager = require('./manager');\nexports.Socket = require('./socket');\n\n\n\n// WEBPACK FOOTER //\n// ./lib/index.js","\n/**\n * Module dependencies.\n */\n\nvar parseuri = require('parseuri');\nvar debug = require('debug')('socket.io-client:url');\n\n/**\n * Module exports.\n */\n\nmodule.exports = url;\n\n/**\n * URL parser.\n *\n * @param {String} url\n * @param {Object} An object meant to mimic window.location.\n *                 Defaults to window.location.\n * @api public\n */\n\nfunction url (uri, loc) {\n  var obj = uri;\n\n  // default to window.location\n  loc = loc || (typeof location !== 'undefined' && location);\n  if (null == uri) uri = loc.protocol + '//' + loc.host;\n\n  // relative path support\n  if ('string' === typeof uri) {\n    if ('/' === uri.charAt(0)) {\n      if ('/' === uri.charAt(1)) {\n        uri = loc.protocol + uri;\n      } else {\n        uri = loc.host + uri;\n      }\n    }\n\n    if (!/^(https?|wss?):\\/\\//.test(uri)) {\n      debug('protocol-less url %s', uri);\n      if ('undefined' !== typeof loc) {\n        uri = loc.protocol + '//' + uri;\n      } else {\n        uri = 'https://' + uri;\n      }\n    }\n\n    // parse\n    debug('parse %s', uri);\n    obj = parseuri(uri);\n  }\n\n  // make sure we treat `localhost:80` and `localhost` equally\n  if (!obj.port) {\n    if (/^(http|ws)$/.test(obj.protocol)) {\n      obj.port = '80';\n    } else if (/^(http|ws)s$/.test(obj.protocol)) {\n      obj.port = '443';\n    }\n  }\n\n  obj.path = obj.path || '/';\n\n  var ipv6 = obj.host.indexOf(':') !== -1;\n  var host = ipv6 ? '[' + obj.host + ']' : obj.host;\n\n  // define unique id\n  obj.id = obj.protocol + '://' + host + ':' + obj.port;\n  // define href\n  obj.href = obj.protocol + '://' + host + (loc && loc.port === obj.port ? '' : (':' + obj.port));\n\n  return obj;\n}\n\n\n\n// WEBPACK FOOTER //\n// ./lib/url.js","/**\r\n * Parses an URI\r\n *\r\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\r\n * @api private\r\n */\r\n\r\nvar re = /^(?:(?![^:@]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\r\n\r\nvar parts = [\r\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\r\n];\r\n\r\nmodule.exports = function parseuri(str) {\r\n    var src = str,\r\n        b = str.indexOf('['),\r\n        e = str.indexOf(']');\r\n\r\n    if (b != -1 && e != -1) {\r\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\r\n    }\r\n\r\n    var m = re.exec(str || ''),\r\n        uri = {},\r\n        i = 14;\r\n\r\n    while (i--) {\r\n        uri[parts[i]] = m[i] || '';\r\n    }\r\n\r\n    if (b != -1 && e != -1) {\r\n        uri.source = src;\r\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\r\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\r\n        uri.ipv6uri = true;\r\n    }\r\n\r\n    return uri;\r\n};\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/parseuri/index.js\n// module id = 2\n// module chunks = 0","/**\n * This is the web browser implementation of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = require('./debug');\nexports.log = log;\nexports.formatArgs = formatArgs;\nexports.save = save;\nexports.load = load;\nexports.useColors = useColors;\nexports.storage = 'undefined' != typeof chrome\n               && 'undefined' != typeof chrome.storage\n                  ? chrome.storage.local\n                  : localstorage();\n\n/**\n * Colors.\n */\n\nexports.colors = [\n  '#0000CC', '#0000FF', '#0033CC', '#0033FF', '#0066CC', '#0066FF', '#0099CC',\n  '#0099FF', '#00CC00', '#00CC33', '#00CC66', '#00CC99', '#00CCCC', '#00CCFF',\n  '#3300CC', '#3300FF', '#3333CC', '#3333FF', '#3366CC', '#3366FF', '#3399CC',\n  '#3399FF', '#33CC00', '#33CC33', '#33CC66', '#33CC99', '#33CCCC', '#33CCFF',\n  '#6600CC', '#6600FF', '#6633CC', '#6633FF', '#66CC00', '#66CC33', '#9900CC',\n  '#9900FF', '#9933CC', '#9933FF', '#99CC00', '#99CC33', '#CC0000', '#CC0033',\n  '#CC0066', '#CC0099', '#CC00CC', '#CC00FF', '#CC3300', '#CC3333', '#CC3366',\n  '#CC3399', '#CC33CC', '#CC33FF', '#CC6600', '#CC6633', '#CC9900', '#CC9933',\n  '#CCCC00', '#CCCC33', '#FF0000', '#FF0033', '#FF0066', '#FF0099', '#FF00CC',\n  '#FF00FF', '#FF3300', '#FF3333', '#FF3366', '#FF3399', '#FF33CC', '#FF33FF',\n  '#FF6600', '#FF6633', '#FF9900', '#FF9933', '#FFCC00', '#FFCC33'\n];\n\n/**\n * Currently only WebKit-based Web Inspectors, Firefox >= v31,\n * and the Firebug extension (any Firefox version) are known\n * to support \"%c\" CSS customizations.\n *\n * TODO: add a `localStorage` variable to explicitly enable/disable colors\n */\n\nfunction useColors() {\n  // NB: In an Electron preload script, document will be defined but not fully\n  // initialized. Since we know we're in Chrome, we'll just detect this case\n  // explicitly\n  if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {\n    return true;\n  }\n\n  // Internet Explorer and Edge do not support colors.\n  if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\\/(\\d+)/)) {\n    return false;\n  }\n\n  // is webkit? http://stackoverflow.com/a/16459606/376773\n  // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632\n  return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||\n    // is firebug? http://stackoverflow.com/a/398120/376773\n    (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||\n    // is firefox >= v31?\n    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages\n    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\\/(\\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||\n    // double check webkit in userAgent just in case we are in a worker\n    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\\/(\\d+)/));\n}\n\n/**\n * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.\n */\n\nexports.formatters.j = function(v) {\n  try {\n    return JSON.stringify(v);\n  } catch (err) {\n    return '[UnexpectedJSONParseError]: ' + err.message;\n  }\n};\n\n\n/**\n * Colorize log arguments if enabled.\n *\n * @api public\n */\n\nfunction formatArgs(args) {\n  var useColors = this.useColors;\n\n  args[0] = (useColors ? '%c' : '')\n    + this.namespace\n    + (useColors ? ' %c' : ' ')\n    + args[0]\n    + (useColors ? '%c ' : ' ')\n    + '+' + exports.humanize(this.diff);\n\n  if (!useColors) return;\n\n  var c = 'color: ' + this.color;\n  args.splice(1, 0, c, 'color: inherit')\n\n  // the final \"%c\" is somewhat tricky, because there could be other\n  // arguments passed either before or after the %c, so we need to\n  // figure out the correct index to insert the CSS into\n  var index = 0;\n  var lastC = 0;\n  args[0].replace(/%[a-zA-Z%]/g, function(match) {\n    if ('%%' === match) return;\n    index++;\n    if ('%c' === match) {\n      // we only are interested in the *last* %c\n      // (the user may have provided their own)\n      lastC = index;\n    }\n  });\n\n  args.splice(lastC, 0, c);\n}\n\n/**\n * Invokes `console.log()` when available.\n * No-op when `console.log` is not a \"function\".\n *\n * @api public\n */\n\nfunction log() {\n  // this hackery is required for IE8/9, where\n  // the `console.log` function doesn't have 'apply'\n  return 'object' === typeof console\n    && console.log\n    && Function.prototype.apply.call(console.log, console, arguments);\n}\n\n/**\n * Save `namespaces`.\n *\n * @param {String} namespaces\n * @api private\n */\n\nfunction save(namespaces) {\n  try {\n    if (null == namespaces) {\n      exports.storage.removeItem('debug');\n    } else {\n      exports.storage.debug = namespaces;\n    }\n  } catch(e) {}\n}\n\n/**\n * Load `namespaces`.\n *\n * @return {String} returns the previously persisted debug modes\n * @api private\n */\n\nfunction load() {\n  var r;\n  try {\n    r = exports.storage.debug;\n  } catch(e) {}\n\n  // If debug isn't set in LS, and we're in Electron, try to load $DEBUG\n  if (!r && typeof process !== 'undefined' && 'env' in process) {\n    r = process.env.DEBUG;\n  }\n\n  return r;\n}\n\n/**\n * Enable namespaces listed in `localStorage.debug` initially.\n */\n\nexports.enable(load());\n\n/**\n * Localstorage attempts to return the localstorage.\n *\n * This is necessary because safari throws\n * when a user disables cookies/localstorage\n * and you attempt to access it.\n *\n * @return {LocalStorage}\n * @api private\n */\n\nfunction localstorage() {\n  try {\n    return window.localStorage;\n  } catch (e) {}\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/debug/src/browser.js\n// module id = 3\n// module chunks = 0","// shim for using process in browser\nvar process = module.exports = {};\n\n// cached from whatever global is present so that test runners that stub it\n// don't break things.  But we need to wrap it in a try catch in case it is\n// wrapped in strict mode code which doesn't define any globals.  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i < arguments.length; i++) {\n            args[i - 1] = arguments[i];\n        }\n    }\n    queue.push(new Item(fun, args));\n    if (queue.length === 1 && !draining) {\n        runTimeout(drainQueue);\n    }\n};\n\n// v8 likes predictible objects\nfunction Item(fun, array) {\n    this.fun = fun;\n    this.array = array;\n}\nItem.prototype.run = function () {\n    this.fun.apply(null, this.array);\n};\nprocess.title = 'browser';\nprocess.browser = true;\nprocess.env = {};\nprocess.argv = [];\nprocess.version = ''; // empty string to avoid regexp issues\nprocess.versions = {};\n\nfunction noop() {}\n\nprocess.on = noop;\nprocess.addListener = noop;\nprocess.once = noop;\nprocess.off = noop;\nprocess.removeListener = noop;\nprocess.removeAllListeners = noop;\nprocess.emit = noop;\nprocess.prependListener = noop;\nprocess.prependOnceListener = noop;\n\nprocess.listeners = function (name) { return [] }\n\nprocess.binding = function (name) {\n    throw new Error('process.binding is not supported');\n};\n\nprocess.cwd = function () { return '/' };\nprocess.chdir = function (dir) {\n    throw new Error('process.chdir is not supported');\n};\nprocess.umask = function() { return 0; };\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/process/browser.js\n// module id = 4\n// module chunks = 0","\n/**\n * This is the common logic for both the Node.js and web browser\n * implementations of `debug()`.\n *\n * Expose `debug()` as the module.\n */\n\nexports = module.exports = createDebug.debug = createDebug['default'] = createDebug;\nexports.coerce = coerce;\nexports.disable = disable;\nexports.enable = enable;\nexports.enabled = enabled;\nexports.humanize = require('ms');\n\n/**\n * Active `debug` instances.\n */\nexports.instances = [];\n\n/**\n * The currently active debug mode names, and names to skip.\n */\n\nexports.names = [];\nexports.skips = [];\n\n/**\n * Map of special \"%n\" handling functions, for the debug \"format\" argument.\n *\n * Valid key names are a single, lower or upper-case letter, i.e. \"n\" and \"N\".\n */\n\nexports.formatters = {};\n\n/**\n * Select a color.\n * @param {String} namespace\n * @return {Number}\n * @api private\n */\n\nfunction selectColor(namespace) {\n  var hash = 0, i;\n\n  for (i in namespace) {\n    hash  = ((hash << 5) - hash) + namespace.charCodeAt(i);\n    hash |= 0; // Convert to 32bit integer\n  }\n\n  return exports.colors[Math.abs(hash) % exports.colors.length];\n}\n\n/**\n * Create a debugger with the given `namespace`.\n *\n * @param {String} namespace\n * @return {Function}\n * @api public\n */\n\nfunction createDebug(namespace) {\n\n  var prevTime;\n\n  function debug() {\n    // disabled?\n    if (!debug.enabled) return;\n\n    var self = debug;\n\n    // set `diff` timestamp\n    var curr = +new Date();\n    var ms = curr - (prevTime || curr);\n    self.diff = ms;\n    self.prev = prevTime;\n    self.curr = curr;\n    prevTime = curr;\n\n    // turn the `arguments` into a proper Array\n    var args = new Array(arguments.length);\n    for (var i = 0; i < args.length; i++) {\n      args[i] = arguments[i];\n    }\n\n    args[0] = exports.coerce(args[0]);\n\n    if ('string' !== typeof args[0]) {\n      // anything else let's inspect with %O\n      args.unshift('%O');\n    }\n\n    // apply any `formatters` transformations\n    var index = 0;\n    args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {\n      // if we encounter an escaped % then don't increase the array index\n      if (match === '%%') return match;\n      index++;\n      var formatter = exports.formatters[format];\n      if ('function' === typeof formatter) {\n        var val = args[index];\n        match = formatter.call(self, val);\n\n        // now we need to remove `args[index]` since it's inlined in the `format`\n        args.splice(index, 1);\n        index--;\n      }\n      return match;\n    });\n\n    // apply env-specific formatting (colors, etc.)\n    exports.formatArgs.call(self, args);\n\n    var logFn = debug.log || exports.log || console.log.bind(console);\n    logFn.apply(self, args);\n  }\n\n  debug.namespace = namespace;\n  debug.enabled = exports.enabled(namespace);\n  debug.useColors = exports.useColors();\n  debug.color = selectColor(namespace);\n  debug.destroy = destroy;\n\n  // env-specific initialization logic for debug instances\n  if ('function' === typeof exports.init) {\n    exports.init(debug);\n  }\n\n  exports.instances.push(debug);\n\n  return debug;\n}\n\nfunction destroy () {\n  var index = exports.instances.indexOf(this);\n  if (index !== -1) {\n    exports.instances.splice(index, 1);\n    return true;\n  } else {\n    return false;\n  }\n}\n\n/**\n * Enables a debug mode by namespaces. This can include modes\n * separated by a colon and wildcards.\n *\n * @param {String} namespaces\n * @api public\n */\n\nfunction enable(namespaces) {\n  exports.save(namespaces);\n\n  exports.names = [];\n  exports.skips = [];\n\n  var i;\n  var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\\s,]+/);\n  var len = split.length;\n\n  for (i = 0; i < len; i++) {\n    if (!split[i]) continue; // ignore empty strings\n    namespaces = split[i].replace(/\\*/g, '.*?');\n    if (namespaces[0] === '-') {\n      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));\n    } else {\n      exports.names.push(new RegExp('^' + namespaces + '$'));\n    }\n  }\n\n  for (i = 0; i < exports.instances.length; i++) {\n    var instance = exports.instances[i];\n    instance.enabled = exports.enabled(instance.namespace);\n  }\n}\n\n/**\n * Disable debug output.\n *\n * @api public\n */\n\nfunction disable() {\n  exports.enable('');\n}\n\n/**\n * Returns true if the given mode name is enabled, false otherwise.\n *\n * @param {String} name\n * @return {Boolean}\n * @api public\n */\n\nfunction enabled(name) {\n  if (name[name.length - 1] === '*') {\n    return true;\n  }\n  var i, len;\n  for (i = 0, len = exports.skips.length; i < len; i++) {\n    if (exports.skips[i].test(name)) {\n      return false;\n    }\n  }\n  for (i = 0, len = exports.names.length; i < len; i++) {\n    if (exports.names[i].test(name)) {\n      return true;\n    }\n  }\n  return false;\n}\n\n/**\n * Coerce `val`.\n *\n * @param {Mixed} val\n * @return {Mixed}\n * @api private\n */\n\nfunction coerce(val) {\n  if (val instanceof Error) return val.stack || val.message;\n  return val;\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/debug/src/debug.js\n// module id = 5\n// module chunks = 0","/**\n * Helpers.\n */\n\nvar s = 1000;\nvar m = s * 60;\nvar h = m * 60;\nvar d = h * 24;\nvar y = d * 365.25;\n\n/**\n * Parse or format the given `val`.\n *\n * Options:\n *\n *  - `long` verbose formatting [false]\n *\n * @param {String|Number} val\n * @param {Object} [options]\n * @throws {Error} throw an error if val is not a non-empty string or a number\n * @return {String|Number}\n * @api public\n */\n\nmodule.exports = function(val, options) {\n  options = options || {};\n  var type = typeof val;\n  if (type === 'string' && val.length > 0) {\n    return parse(val);\n  } else if (type === 'number' && isNaN(val) === false) {\n    return options.long ? fmtLong(val) : fmtShort(val);\n  }\n  throw new Error(\n    'val is not a non-empty string or a valid number. val=' +\n      JSON.stringify(val)\n  );\n};\n\n/**\n * Parse the given `str` and return milliseconds.\n *\n * @param {String} str\n * @return {Number}\n * @api private\n */\n\nfunction parse(str) {\n  str = String(str);\n  if (str.length > 100) {\n    return;\n  }\n  var match = /^((?:\\d+)?\\.?\\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(\n    str\n  );\n  if (!match) {\n    return;\n  }\n  var n = parseFloat(match[1]);\n  var type = (match[2] || 'ms').toLowerCase();\n  switch (type) {\n    case 'years':\n    case 'year':\n    case 'yrs':\n    case 'yr':\n    case 'y':\n      return n * y;\n    case 'days':\n    case 'day':\n    case 'd':\n      return n * d;\n    case 'hours':\n    case 'hour':\n    case 'hrs':\n    case 'hr':\n    case 'h':\n      return n * h;\n    case 'minutes':\n    case 'minute':\n    case 'mins':\n    case 'min':\n    case 'm':\n      return n * m;\n    case 'seconds':\n    case 'second':\n    case 'secs':\n    case 'sec':\n    case 's':\n      return n * s;\n    case 'milliseconds':\n    case 'millisecond':\n    case 'msecs':\n    case 'msec':\n    case 'ms':\n      return n;\n    default:\n      return undefined;\n  }\n}\n\n/**\n * Short format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction fmtShort(ms) {\n  if (ms >= d) {\n    return Math.round(ms / d) + 'd';\n  }\n  if (ms >= h) {\n    return Math.round(ms / h) + 'h';\n  }\n  if (ms >= m) {\n    return Math.round(ms / m) + 'm';\n  }\n  if (ms >= s) {\n    return Math.round(ms / s) + 's';\n  }\n  return ms + 'ms';\n}\n\n/**\n * Long format for `ms`.\n *\n * @param {Number} ms\n * @return {String}\n * @api private\n */\n\nfunction fmtLong(ms) {\n  return plural(ms, d, 'day') ||\n    plural(ms, h, 'hour') ||\n    plural(ms, m, 'minute') ||\n    plural(ms, s, 'second') ||\n    ms + ' ms';\n}\n\n/**\n * Pluralization helper.\n */\n\nfunction plural(ms, n, name) {\n  if (ms < n) {\n    return;\n  }\n  if (ms < n * 1.5) {\n    return Math.floor(ms / n) + ' ' + name;\n  }\n  return Math.ceil(ms / n) + ' ' + name + 's';\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/ms/index.js\n// module id = 6\n// module chunks = 0","\n/**\n * Module dependencies.\n */\n\nvar debug = require('debug')('socket.io-parser');\nvar Emitter = require('component-emitter');\nvar binary = require('./binary');\nvar isArray = require('isarray');\nvar isBuf = require('./is-buffer');\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nexports.protocol = 4;\n\n/**\n * Packet types.\n *\n * @api public\n */\n\nexports.types = [\n  'CONNECT',\n  'DISCONNECT',\n  'EVENT',\n  'ACK',\n  'ERROR',\n  'BINARY_EVENT',\n  'BINARY_ACK'\n];\n\n/**\n * Packet type `connect`.\n *\n * @api public\n */\n\nexports.CONNECT = 0;\n\n/**\n * Packet type `disconnect`.\n *\n * @api public\n */\n\nexports.DISCONNECT = 1;\n\n/**\n * Packet type `event`.\n *\n * @api public\n */\n\nexports.EVENT = 2;\n\n/**\n * Packet type `ack`.\n *\n * @api public\n */\n\nexports.ACK = 3;\n\n/**\n * Packet type `error`.\n *\n * @api public\n */\n\nexports.ERROR = 4;\n\n/**\n * Packet type 'binary event'\n *\n * @api public\n */\n\nexports.BINARY_EVENT = 5;\n\n/**\n * Packet type `binary ack`. For acks with binary arguments.\n *\n * @api public\n */\n\nexports.BINARY_ACK = 6;\n\n/**\n * Encoder constructor.\n *\n * @api public\n */\n\nexports.Encoder = Encoder;\n\n/**\n * Decoder constructor.\n *\n * @api public\n */\n\nexports.Decoder = Decoder;\n\n/**\n * A socket.io Encoder instance\n *\n * @api public\n */\n\nfunction Encoder() {}\n\nvar ERROR_PACKET = exports.ERROR + '\"encode error\"';\n\n/**\n * Encode a packet as a single string if non-binary, or as a\n * buffer sequence, depending on packet type.\n *\n * @param {Object} obj - packet object\n * @param {Function} callback - function to handle encodings (likely engine.write)\n * @return Calls callback with Array of encodings\n * @api public\n */\n\nEncoder.prototype.encode = function(obj, callback){\n  debug('encoding packet %j', obj);\n\n  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {\n    encodeAsBinary(obj, callback);\n  } else {\n    var encoding = encodeAsString(obj);\n    callback([encoding]);\n  }\n};\n\n/**\n * Encode packet as string.\n *\n * @param {Object} packet\n * @return {String} encoded\n * @api private\n */\n\nfunction encodeAsString(obj) {\n\n  // first is type\n  var str = '' + obj.type;\n\n  // attachments if we have them\n  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {\n    str += obj.attachments + '-';\n  }\n\n  // if we have a namespace other than `/`\n  // we append it followed by a comma `,`\n  if (obj.nsp && '/' !== obj.nsp) {\n    str += obj.nsp + ',';\n  }\n\n  // immediately followed by the id\n  if (null != obj.id) {\n    str += obj.id;\n  }\n\n  // json data\n  if (null != obj.data) {\n    var payload = tryStringify(obj.data);\n    if (payload !== false) {\n      str += payload;\n    } else {\n      return ERROR_PACKET;\n    }\n  }\n\n  debug('encoded %j as %s', obj, str);\n  return str;\n}\n\nfunction tryStringify(str) {\n  try {\n    return JSON.stringify(str);\n  } catch(e){\n    return false;\n  }\n}\n\n/**\n * Encode packet as 'buffer sequence' by removing blobs, and\n * deconstructing packet into object with placeholders and\n * a list of buffers.\n *\n * @param {Object} packet\n * @return {Buffer} encoded\n * @api private\n */\n\nfunction encodeAsBinary(obj, callback) {\n\n  function writeEncoding(bloblessData) {\n    var deconstruction = binary.deconstructPacket(bloblessData);\n    var pack = encodeAsString(deconstruction.packet);\n    var buffers = deconstruction.buffers;\n\n    buffers.unshift(pack); // add packet info to beginning of data list\n    callback(buffers); // write all the buffers\n  }\n\n  binary.removeBlobs(obj, writeEncoding);\n}\n\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n * @api public\n */\n\nfunction Decoder() {\n  this.reconstructor = null;\n}\n\n/**\n * Mix in `Emitter` with Decoder.\n */\n\nEmitter(Decoder.prototype);\n\n/**\n * Decodes an encoded packet string into packet JSON.\n *\n * @param {String} obj - encoded packet\n * @return {Object} packet\n * @api public\n */\n\nDecoder.prototype.add = function(obj) {\n  var packet;\n  if (typeof obj === 'string') {\n    packet = decodeString(obj);\n    if (exports.BINARY_EVENT === packet.type || exports.BINARY_ACK === packet.type) { // binary packet's json\n      this.reconstructor = new BinaryReconstructor(packet);\n\n      // no attachments, labeled binary but no binary data to follow\n      if (this.reconstructor.reconPack.attachments === 0) {\n        this.emit('decoded', packet);\n      }\n    } else { // non-binary full packet\n      this.emit('decoded', packet);\n    }\n  } else if (isBuf(obj) || obj.base64) { // raw binary data\n    if (!this.reconstructor) {\n      throw new Error('got binary data when not reconstructing a packet');\n    } else {\n      packet = this.reconstructor.takeBinaryData(obj);\n      if (packet) { // received final buffer\n        this.reconstructor = null;\n        this.emit('decoded', packet);\n      }\n    }\n  } else {\n    throw new Error('Unknown type: ' + obj);\n  }\n};\n\n/**\n * Decode a packet String (JSON data)\n *\n * @param {String} str\n * @return {Object} packet\n * @api private\n */\n\nfunction decodeString(str) {\n  var i = 0;\n  // look up type\n  var p = {\n    type: Number(str.charAt(0))\n  };\n\n  if (null == exports.types[p.type]) {\n    return error('unknown packet type ' + p.type);\n  }\n\n  // look up attachments if type binary\n  if (exports.BINARY_EVENT === p.type || exports.BINARY_ACK === p.type) {\n    var buf = '';\n    while (str.charAt(++i) !== '-') {\n      buf += str.charAt(i);\n      if (i == str.length) break;\n    }\n    if (buf != Number(buf) || str.charAt(i) !== '-') {\n      throw new Error('Illegal attachments');\n    }\n    p.attachments = Number(buf);\n  }\n\n  // look up namespace (if any)\n  if ('/' === str.charAt(i + 1)) {\n    p.nsp = '';\n    while (++i) {\n      var c = str.charAt(i);\n      if (',' === c) break;\n      p.nsp += c;\n      if (i === str.length) break;\n    }\n  } else {\n    p.nsp = '/';\n  }\n\n  // look up id\n  var next = str.charAt(i + 1);\n  if ('' !== next && Number(next) == next) {\n    p.id = '';\n    while (++i) {\n      var c = str.charAt(i);\n      if (null == c || Number(c) != c) {\n        --i;\n        break;\n      }\n      p.id += str.charAt(i);\n      if (i === str.length) break;\n    }\n    p.id = Number(p.id);\n  }\n\n  // look up json data\n  if (str.charAt(++i)) {\n    var payload = tryParse(str.substr(i));\n    var isPayloadValid = payload !== false && (p.type === exports.ERROR || isArray(payload));\n    if (isPayloadValid) {\n      p.data = payload;\n    } else {\n      return error('invalid payload');\n    }\n  }\n\n  debug('decoded %s as %j', str, p);\n  return p;\n}\n\nfunction tryParse(str) {\n  try {\n    return JSON.parse(str);\n  } catch(e){\n    return false;\n  }\n}\n\n/**\n * Deallocates a parser's resources\n *\n * @api public\n */\n\nDecoder.prototype.destroy = function() {\n  if (this.reconstructor) {\n    this.reconstructor.finishedReconstruction();\n  }\n};\n\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n * @api private\n */\n\nfunction BinaryReconstructor(packet) {\n  this.reconPack = packet;\n  this.buffers = [];\n}\n\n/**\n * Method to be called when binary data received from connection\n * after a BINARY_EVENT packet.\n *\n * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n * @return {null | Object} returns null if more binary data is expected or\n *   a reconstructed packet object if all buffers have been received.\n * @api private\n */\n\nBinaryReconstructor.prototype.takeBinaryData = function(binData) {\n  this.buffers.push(binData);\n  if (this.buffers.length === this.reconPack.attachments) { // done with buffer list\n    var packet = binary.reconstructPacket(this.reconPack, this.buffers);\n    this.finishedReconstruction();\n    return packet;\n  }\n  return null;\n};\n\n/**\n * Cleans up binary packet reconstruction variables.\n *\n * @api private\n */\n\nBinaryReconstructor.prototype.finishedReconstruction = function() {\n  this.reconPack = null;\n  this.buffers = [];\n};\n\nfunction error(msg) {\n  return {\n    type: exports.ERROR,\n    data: 'parser error: ' + msg\n  };\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/socket.io-parser/index.js\n// module id = 7\n// module chunks = 0","\r\n/**\r\n * Expose `Emitter`.\r\n */\r\n\r\nif (typeof module !== 'undefined') {\r\n  module.exports = Emitter;\r\n}\r\n\r\n/**\r\n * Initialize a new `Emitter`.\r\n *\r\n * @api public\r\n */\r\n\r\nfunction Emitter(obj) {\r\n  if (obj) return mixin(obj);\r\n};\r\n\r\n/**\r\n * Mixin the emitter properties.\r\n *\r\n * @param {Object} obj\r\n * @return {Object}\r\n * @api private\r\n */\r\n\r\nfunction mixin(obj) {\r\n  for (var key in Emitter.prototype) {\r\n    obj[key] = Emitter.prototype[key];\r\n  }\r\n  return obj;\r\n}\r\n\r\n/**\r\n * Listen on the given `event` with `fn`.\r\n *\r\n * @param {String} event\r\n * @param {Function} fn\r\n * @return {Emitter}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.on =\r\nEmitter.prototype.addEventListener = function(event, fn){\r\n  this._callbacks = this._callbacks || {};\r\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\r\n    .push(fn);\r\n  return this;\r\n};\r\n\r\n/**\r\n * Adds an `event` listener that will be invoked a single\r\n * time then automatically removed.\r\n *\r\n * @param {String} event\r\n * @param {Function} fn\r\n * @return {Emitter}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.once = function(event, fn){\r\n  function on() {\r\n    this.off(event, on);\r\n    fn.apply(this, arguments);\r\n  }\r\n\r\n  on.fn = fn;\r\n  this.on(event, on);\r\n  return this;\r\n};\r\n\r\n/**\r\n * Remove the given callback for `event` or all\r\n * registered callbacks.\r\n *\r\n * @param {String} event\r\n * @param {Function} fn\r\n * @return {Emitter}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.off =\r\nEmitter.prototype.removeListener =\r\nEmitter.prototype.removeAllListeners =\r\nEmitter.prototype.removeEventListener = function(event, fn){\r\n  this._callbacks = this._callbacks || {};\r\n\r\n  // all\r\n  if (0 == arguments.length) {\r\n    this._callbacks = {};\r\n    return this;\r\n  }\r\n\r\n  // specific event\r\n  var callbacks = this._callbacks['$' + event];\r\n  if (!callbacks) return this;\r\n\r\n  // remove all handlers\r\n  if (1 == arguments.length) {\r\n    delete this._callbacks['$' + event];\r\n    return this;\r\n  }\r\n\r\n  // remove specific handler\r\n  var cb;\r\n  for (var i = 0; i < callbacks.length; i++) {\r\n    cb = callbacks[i];\r\n    if (cb === fn || cb.fn === fn) {\r\n      callbacks.splice(i, 1);\r\n      break;\r\n    }\r\n  }\r\n  return this;\r\n};\r\n\r\n/**\r\n * Emit `event` with the given args.\r\n *\r\n * @param {String} event\r\n * @param {Mixed} ...\r\n * @return {Emitter}\r\n */\r\n\r\nEmitter.prototype.emit = function(event){\r\n  this._callbacks = this._callbacks || {};\r\n  var args = [].slice.call(arguments, 1)\r\n    , callbacks = this._callbacks['$' + event];\r\n\r\n  if (callbacks) {\r\n    callbacks = callbacks.slice(0);\r\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\r\n      callbacks[i].apply(this, args);\r\n    }\r\n  }\r\n\r\n  return this;\r\n};\r\n\r\n/**\r\n * Return array of callbacks for `event`.\r\n *\r\n * @param {String} event\r\n * @return {Array}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.listeners = function(event){\r\n  this._callbacks = this._callbacks || {};\r\n  return this._callbacks['$' + event] || [];\r\n};\r\n\r\n/**\r\n * Check if this emitter has `event` handlers.\r\n *\r\n * @param {String} event\r\n * @return {Boolean}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.hasListeners = function(event){\r\n  return !! this.listeners(event).length;\r\n};\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/component-emitter/index.js\n// module id = 8\n// module chunks = 0","/*global Blob,File*/\n\n/**\n * Module requirements\n */\n\nvar isArray = require('isarray');\nvar isBuf = require('./is-buffer');\nvar toString = Object.prototype.toString;\nvar withNativeBlob = typeof Blob === 'function' || (typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]');\nvar withNativeFile = typeof File === 'function' || (typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]');\n\n/**\n * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder.\n * Anything with blobs or files should be fed through removeBlobs before coming\n * here.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @api public\n */\n\nexports.deconstructPacket = function(packet) {\n  var buffers = [];\n  var packetData = packet.data;\n  var pack = packet;\n  pack.data = _deconstructPacket(packetData, buffers);\n  pack.attachments = buffers.length; // number of binary 'attachments'\n  return {packet: pack, buffers: buffers};\n};\n\nfunction _deconstructPacket(data, buffers) {\n  if (!data) return data;\n\n  if (isBuf(data)) {\n    var placeholder = { _placeholder: true, num: buffers.length };\n    buffers.push(data);\n    return placeholder;\n  } else if (isArray(data)) {\n    var newData = new Array(data.length);\n    for (var i = 0; i < data.length; i++) {\n      newData[i] = _deconstructPacket(data[i], buffers);\n    }\n    return newData;\n  } else if (typeof data === 'object' && !(data instanceof Date)) {\n    var newData = {};\n    for (var key in data) {\n      newData[key] = _deconstructPacket(data[key], buffers);\n    }\n    return newData;\n  }\n  return data;\n}\n\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @api public\n */\n\nexports.reconstructPacket = function(packet, buffers) {\n  packet.data = _reconstructPacket(packet.data, buffers);\n  packet.attachments = undefined; // no longer useful\n  return packet;\n};\n\nfunction _reconstructPacket(data, buffers) {\n  if (!data) return data;\n\n  if (data && data._placeholder) {\n    return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n  } else if (isArray(data)) {\n    for (var i = 0; i < data.length; i++) {\n      data[i] = _reconstructPacket(data[i], buffers);\n    }\n  } else if (typeof data === 'object') {\n    for (var key in data) {\n      data[key] = _reconstructPacket(data[key], buffers);\n    }\n  }\n\n  return data;\n}\n\n/**\n * Asynchronously removes Blobs or Files from data via\n * FileReader's readAsArrayBuffer method. Used before encoding\n * data as msgpack. Calls callback with the blobless data.\n *\n * @param {Object} data\n * @param {Function} callback\n * @api private\n */\n\nexports.removeBlobs = function(data, callback) {\n  function _removeBlobs(obj, curKey, containingObject) {\n    if (!obj) return obj;\n\n    // convert any blob\n    if ((withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File)) {\n      pendingBlobs++;\n\n      // async filereader\n      var fileReader = new FileReader();\n      fileReader.onload = function() { // this.result == arraybuffer\n        if (containingObject) {\n          containingObject[curKey] = this.result;\n        }\n        else {\n          bloblessData = this.result;\n        }\n\n        // if nothing pending its callback time\n        if(! --pendingBlobs) {\n          callback(bloblessData);\n        }\n      };\n\n      fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer\n    } else if (isArray(obj)) { // handle array\n      for (var i = 0; i < obj.length; i++) {\n        _removeBlobs(obj[i], i, obj);\n      }\n    } else if (typeof obj === 'object' && !isBuf(obj)) { // and object\n      for (var key in obj) {\n        _removeBlobs(obj[key], key, obj);\n      }\n    }\n  }\n\n  var pendingBlobs = 0;\n  var bloblessData = data;\n  _removeBlobs(bloblessData);\n  if (!pendingBlobs) {\n    callback(bloblessData);\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/socket.io-parser/binary.js\n// module id = 9\n// module chunks = 0","var toString = {}.toString;\n\nmodule.exports = Array.isArray || function (arr) {\n  return toString.call(arr) == '[object Array]';\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/isarray/index.js\n// module id = 10\n// module chunks = 0","\nmodule.exports = isBuf;\n\nvar withNativeBuffer = typeof Buffer === 'function' && typeof Buffer.isBuffer === 'function';\nvar withNativeArrayBuffer = typeof ArrayBuffer === 'function';\n\nvar isView = function (obj) {\n  return typeof ArrayBuffer.isView === 'function' ? ArrayBuffer.isView(obj) : (obj.buffer instanceof ArrayBuffer);\n};\n\n/**\n * Returns true if obj is a buffer or an arraybuffer.\n *\n * @api private\n */\n\nfunction isBuf(obj) {\n  return (withNativeBuffer && Buffer.isBuffer(obj)) ||\n          (withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj)));\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/socket.io-parser/is-buffer.js\n// module id = 11\n// module chunks = 0","\n/**\n * Module dependencies.\n */\n\nvar eio = require('engine.io-client');\nvar Socket = require('./socket');\nvar Emitter = require('component-emitter');\nvar parser = require('socket.io-parser');\nvar on = require('./on');\nvar bind = require('component-bind');\nvar debug = require('debug')('socket.io-client:manager');\nvar indexOf = require('indexof');\nvar Backoff = require('backo2');\n\n/**\n * IE6+ hasOwnProperty\n */\n\nvar has = Object.prototype.hasOwnProperty;\n\n/**\n * Module exports\n */\n\nmodule.exports = Manager;\n\n/**\n * `Manager` constructor.\n *\n * @param {String} engine instance or engine uri/opts\n * @param {Object} options\n * @api public\n */\n\nfunction Manager (uri, opts) {\n  if (!(this instanceof Manager)) return new Manager(uri, opts);\n  if (uri && ('object' === typeof uri)) {\n    opts = uri;\n    uri = undefined;\n  }\n  opts = opts || {};\n\n  opts.path = opts.path || '/socket.io';\n  this.nsps = {};\n  this.subs = [];\n  this.opts = opts;\n  this.reconnection(opts.reconnection !== false);\n  this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n  this.reconnectionDelay(opts.reconnectionDelay || 1000);\n  this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n  this.randomizationFactor(opts.randomizationFactor || 0.5);\n  this.backoff = new Backoff({\n    min: this.reconnectionDelay(),\n    max: this.reconnectionDelayMax(),\n    jitter: this.randomizationFactor()\n  });\n  this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n  this.readyState = 'closed';\n  this.uri = uri;\n  this.connecting = [];\n  this.lastPing = null;\n  this.encoding = false;\n  this.packetBuffer = [];\n  var _parser = opts.parser || parser;\n  this.encoder = new _parser.Encoder();\n  this.decoder = new _parser.Decoder();\n  this.autoConnect = opts.autoConnect !== false;\n  if (this.autoConnect) this.open();\n}\n\n/**\n * Propagate given event to sockets and emit on `this`\n *\n * @api private\n */\n\nManager.prototype.emitAll = function () {\n  this.emit.apply(this, arguments);\n  for (var nsp in this.nsps) {\n    if (has.call(this.nsps, nsp)) {\n      this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);\n    }\n  }\n};\n\n/**\n * Update `socket.id` of all sockets\n *\n * @api private\n */\n\nManager.prototype.updateSocketIds = function () {\n  for (var nsp in this.nsps) {\n    if (has.call(this.nsps, nsp)) {\n      this.nsps[nsp].id = this.generateId(nsp);\n    }\n  }\n};\n\n/**\n * generate `socket.id` for the given `nsp`\n *\n * @param {String} nsp\n * @return {String}\n * @api private\n */\n\nManager.prototype.generateId = function (nsp) {\n  return (nsp === '/' ? '' : (nsp + '#')) + this.engine.id;\n};\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Manager.prototype);\n\n/**\n * Sets the `reconnection` config.\n *\n * @param {Boolean} true/false if it should automatically reconnect\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnection = function (v) {\n  if (!arguments.length) return this._reconnection;\n  this._reconnection = !!v;\n  return this;\n};\n\n/**\n * Sets the reconnection attempts config.\n *\n * @param {Number} max reconnection attempts before giving up\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionAttempts = function (v) {\n  if (!arguments.length) return this._reconnectionAttempts;\n  this._reconnectionAttempts = v;\n  return this;\n};\n\n/**\n * Sets the delay between reconnections.\n *\n * @param {Number} delay\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionDelay = function (v) {\n  if (!arguments.length) return this._reconnectionDelay;\n  this._reconnectionDelay = v;\n  this.backoff && this.backoff.setMin(v);\n  return this;\n};\n\nManager.prototype.randomizationFactor = function (v) {\n  if (!arguments.length) return this._randomizationFactor;\n  this._randomizationFactor = v;\n  this.backoff && this.backoff.setJitter(v);\n  return this;\n};\n\n/**\n * Sets the maximum delay between reconnections.\n *\n * @param {Number} delay\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionDelayMax = function (v) {\n  if (!arguments.length) return this._reconnectionDelayMax;\n  this._reconnectionDelayMax = v;\n  this.backoff && this.backoff.setMax(v);\n  return this;\n};\n\n/**\n * Sets the connection timeout. `false` to disable\n *\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.timeout = function (v) {\n  if (!arguments.length) return this._timeout;\n  this._timeout = v;\n  return this;\n};\n\n/**\n * Starts trying to reconnect if reconnection is enabled and we have not\n * started reconnecting yet\n *\n * @api private\n */\n\nManager.prototype.maybeReconnectOnOpen = function () {\n  // Only try to reconnect if it's the first time we're connecting\n  if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {\n    // keeps reconnection from firing twice for the same reconnection loop\n    this.reconnect();\n  }\n};\n\n/**\n * Sets the current transport `socket`.\n *\n * @param {Function} optional, callback\n * @return {Manager} self\n * @api public\n */\n\nManager.prototype.open =\nManager.prototype.connect = function (fn, opts) {\n  debug('readyState %s', this.readyState);\n  if (~this.readyState.indexOf('open')) return this;\n\n  debug('opening %s', this.uri);\n  this.engine = eio(this.uri, this.opts);\n  var socket = this.engine;\n  var self = this;\n  this.readyState = 'opening';\n  this.skipReconnect = false;\n\n  // emit `open`\n  var openSub = on(socket, 'open', function () {\n    self.onopen();\n    fn && fn();\n  });\n\n  // emit `connect_error`\n  var errorSub = on(socket, 'error', function (data) {\n    debug('connect_error');\n    self.cleanup();\n    self.readyState = 'closed';\n    self.emitAll('connect_error', data);\n    if (fn) {\n      var err = new Error('Connection error');\n      err.data = data;\n      fn(err);\n    } else {\n      // Only do this if there is no fn to handle the error\n      self.maybeReconnectOnOpen();\n    }\n  });\n\n  // emit `connect_timeout`\n  if (false !== this._timeout) {\n    var timeout = this._timeout;\n    debug('connect attempt will timeout after %d', timeout);\n\n    // set timer\n    var timer = setTimeout(function () {\n      debug('connect attempt timed out after %d', timeout);\n      openSub.destroy();\n      socket.close();\n      socket.emit('error', 'timeout');\n      self.emitAll('connect_timeout', timeout);\n    }, timeout);\n\n    this.subs.push({\n      destroy: function () {\n        clearTimeout(timer);\n      }\n    });\n  }\n\n  this.subs.push(openSub);\n  this.subs.push(errorSub);\n\n  return this;\n};\n\n/**\n * Called upon transport open.\n *\n * @api private\n */\n\nManager.prototype.onopen = function () {\n  debug('open');\n\n  // clear old subs\n  this.cleanup();\n\n  // mark as open\n  this.readyState = 'open';\n  this.emit('open');\n\n  // add new subs\n  var socket = this.engine;\n  this.subs.push(on(socket, 'data', bind(this, 'ondata')));\n  this.subs.push(on(socket, 'ping', bind(this, 'onping')));\n  this.subs.push(on(socket, 'pong', bind(this, 'onpong')));\n  this.subs.push(on(socket, 'error', bind(this, 'onerror')));\n  this.subs.push(on(socket, 'close', bind(this, 'onclose')));\n  this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));\n};\n\n/**\n * Called upon a ping.\n *\n * @api private\n */\n\nManager.prototype.onping = function () {\n  this.lastPing = new Date();\n  this.emitAll('ping');\n};\n\n/**\n * Called upon a packet.\n *\n * @api private\n */\n\nManager.prototype.onpong = function () {\n  this.emitAll('pong', new Date() - this.lastPing);\n};\n\n/**\n * Called with data.\n *\n * @api private\n */\n\nManager.prototype.ondata = function (data) {\n  this.decoder.add(data);\n};\n\n/**\n * Called when parser fully decodes a packet.\n *\n * @api private\n */\n\nManager.prototype.ondecoded = function (packet) {\n  this.emit('packet', packet);\n};\n\n/**\n * Called upon socket error.\n *\n * @api private\n */\n\nManager.prototype.onerror = function (err) {\n  debug('error', err);\n  this.emitAll('error', err);\n};\n\n/**\n * Creates a new socket for the given `nsp`.\n *\n * @return {Socket}\n * @api public\n */\n\nManager.prototype.socket = function (nsp, opts) {\n  var socket = this.nsps[nsp];\n  if (!socket) {\n    socket = new Socket(this, nsp, opts);\n    this.nsps[nsp] = socket;\n    var self = this;\n    socket.on('connecting', onConnecting);\n    socket.on('connect', function () {\n      socket.id = self.generateId(nsp);\n    });\n\n    if (this.autoConnect) {\n      // manually call here since connecting event is fired before listening\n      onConnecting();\n    }\n  }\n\n  function onConnecting () {\n    if (!~indexOf(self.connecting, socket)) {\n      self.connecting.push(socket);\n    }\n  }\n\n  return socket;\n};\n\n/**\n * Called upon a socket close.\n *\n * @param {Socket} socket\n */\n\nManager.prototype.destroy = function (socket) {\n  var index = indexOf(this.connecting, socket);\n  if (~index) this.connecting.splice(index, 1);\n  if (this.connecting.length) return;\n\n  this.close();\n};\n\n/**\n * Writes a packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nManager.prototype.packet = function (packet) {\n  debug('writing packet %j', packet);\n  var self = this;\n  if (packet.query && packet.type === 0) packet.nsp += '?' + packet.query;\n\n  if (!self.encoding) {\n    // encode, then write to engine with result\n    self.encoding = true;\n    this.encoder.encode(packet, function (encodedPackets) {\n      for (var i = 0; i < encodedPackets.length; i++) {\n        self.engine.write(encodedPackets[i], packet.options);\n      }\n      self.encoding = false;\n      self.processPacketQueue();\n    });\n  } else { // add packet to the queue\n    self.packetBuffer.push(packet);\n  }\n};\n\n/**\n * If packet buffer is non-empty, begins encoding the\n * next packet in line.\n *\n * @api private\n */\n\nManager.prototype.processPacketQueue = function () {\n  if (this.packetBuffer.length > 0 && !this.encoding) {\n    var pack = this.packetBuffer.shift();\n    this.packet(pack);\n  }\n};\n\n/**\n * Clean up transport subscriptions and packet buffer.\n *\n * @api private\n */\n\nManager.prototype.cleanup = function () {\n  debug('cleanup');\n\n  var subsLength = this.subs.length;\n  for (var i = 0; i < subsLength; i++) {\n    var sub = this.subs.shift();\n    sub.destroy();\n  }\n\n  this.packetBuffer = [];\n  this.encoding = false;\n  this.lastPing = null;\n\n  this.decoder.destroy();\n};\n\n/**\n * Close the current socket.\n *\n * @api private\n */\n\nManager.prototype.close =\nManager.prototype.disconnect = function () {\n  debug('disconnect');\n  this.skipReconnect = true;\n  this.reconnecting = false;\n  if ('opening' === this.readyState) {\n    // `onclose` will not fire because\n    // an open event never happened\n    this.cleanup();\n  }\n  this.backoff.reset();\n  this.readyState = 'closed';\n  if (this.engine) this.engine.close();\n};\n\n/**\n * Called upon engine close.\n *\n * @api private\n */\n\nManager.prototype.onclose = function (reason) {\n  debug('onclose');\n\n  this.cleanup();\n  this.backoff.reset();\n  this.readyState = 'closed';\n  this.emit('close', reason);\n\n  if (this._reconnection && !this.skipReconnect) {\n    this.reconnect();\n  }\n};\n\n/**\n * Attempt a reconnection.\n *\n * @api private\n */\n\nManager.prototype.reconnect = function () {\n  if (this.reconnecting || this.skipReconnect) return this;\n\n  var self = this;\n\n  if (this.backoff.attempts >= this._reconnectionAttempts) {\n    debug('reconnect failed');\n    this.backoff.reset();\n    this.emitAll('reconnect_failed');\n    this.reconnecting = false;\n  } else {\n    var delay = this.backoff.duration();\n    debug('will wait %dms before reconnect attempt', delay);\n\n    this.reconnecting = true;\n    var timer = setTimeout(function () {\n      if (self.skipReconnect) return;\n\n      debug('attempting reconnect');\n      self.emitAll('reconnect_attempt', self.backoff.attempts);\n      self.emitAll('reconnecting', self.backoff.attempts);\n\n      // check again for the case socket closed in above events\n      if (self.skipReconnect) return;\n\n      self.open(function (err) {\n        if (err) {\n          debug('reconnect attempt error');\n          self.reconnecting = false;\n          self.reconnect();\n          self.emitAll('reconnect_error', err.data);\n        } else {\n          debug('reconnect success');\n          self.onreconnect();\n        }\n      });\n    }, delay);\n\n    this.subs.push({\n      destroy: function () {\n        clearTimeout(timer);\n      }\n    });\n  }\n};\n\n/**\n * Called upon successful reconnect.\n *\n * @api private\n */\n\nManager.prototype.onreconnect = function () {\n  var attempt = this.backoff.attempts;\n  this.reconnecting = false;\n  this.backoff.reset();\n  this.updateSocketIds();\n  this.emitAll('reconnect', attempt);\n};\n\n\n\n// WEBPACK FOOTER //\n// ./lib/manager.js","\nmodule.exports = require('./socket');\n\n/**\n * Exports parser\n *\n * @api public\n *\n */\nmodule.exports.parser = require('engine.io-parser');\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/index.js\n// module id = 13\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar transports = require('./transports/index');\nvar Emitter = require('component-emitter');\nvar debug = require('debug')('engine.io-client:socket');\nvar index = require('indexof');\nvar parser = require('engine.io-parser');\nvar parseuri = require('parseuri');\nvar parseqs = require('parseqs');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Socket;\n\n/**\n * Socket constructor.\n *\n * @param {String|Object} uri or options\n * @param {Object} options\n * @api public\n */\n\nfunction Socket (uri, opts) {\n  if (!(this instanceof Socket)) return new Socket(uri, opts);\n\n  opts = opts || {};\n\n  if (uri && 'object' === typeof uri) {\n    opts = uri;\n    uri = null;\n  }\n\n  if (uri) {\n    uri = parseuri(uri);\n    opts.hostname = uri.host;\n    opts.secure = uri.protocol === 'https' || uri.protocol === 'wss';\n    opts.port = uri.port;\n    if (uri.query) opts.query = uri.query;\n  } else if (opts.host) {\n    opts.hostname = parseuri(opts.host).host;\n  }\n\n  this.secure = null != opts.secure ? opts.secure\n    : (typeof location !== 'undefined' && 'https:' === location.protocol);\n\n  if (opts.hostname && !opts.port) {\n    // if no port is specified manually, use the protocol default\n    opts.port = this.secure ? '443' : '80';\n  }\n\n  this.agent = opts.agent || false;\n  this.hostname = opts.hostname ||\n    (typeof location !== 'undefined' ? location.hostname : 'localhost');\n  this.port = opts.port || (typeof location !== 'undefined' && location.port\n      ? location.port\n      : (this.secure ? 443 : 80));\n  this.query = opts.query || {};\n  if ('string' === typeof this.query) this.query = parseqs.decode(this.query);\n  this.upgrade = false !== opts.upgrade;\n  this.path = (opts.path || '/engine.io').replace(/\\/$/, '') + '/';\n  this.forceJSONP = !!opts.forceJSONP;\n  this.jsonp = false !== opts.jsonp;\n  this.forceBase64 = !!opts.forceBase64;\n  this.enablesXDR = !!opts.enablesXDR;\n  this.timestampParam = opts.timestampParam || 't';\n  this.timestampRequests = opts.timestampRequests;\n  this.transports = opts.transports || ['polling', 'websocket'];\n  this.transportOptions = opts.transportOptions || {};\n  this.readyState = '';\n  this.writeBuffer = [];\n  this.prevBufferLen = 0;\n  this.policyPort = opts.policyPort || 843;\n  this.rememberUpgrade = opts.rememberUpgrade || false;\n  this.binaryType = null;\n  this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;\n  this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || {}) : false;\n\n  if (true === this.perMessageDeflate) this.perMessageDeflate = {};\n  if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) {\n    this.perMessageDeflate.threshold = 1024;\n  }\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx || null;\n  this.key = opts.key || null;\n  this.passphrase = opts.passphrase || null;\n  this.cert = opts.cert || null;\n  this.ca = opts.ca || null;\n  this.ciphers = opts.ciphers || null;\n  this.rejectUnauthorized = opts.rejectUnauthorized === undefined ? true : opts.rejectUnauthorized;\n  this.forceNode = !!opts.forceNode;\n\n  // detect ReactNative environment\n  this.isReactNative = (typeof navigator !== 'undefined' && typeof navigator.product === 'string' && navigator.product.toLowerCase() === 'reactnative');\n\n  // other options for Node.js or ReactNative client\n  if (typeof self === 'undefined' || this.isReactNative) {\n    if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) {\n      this.extraHeaders = opts.extraHeaders;\n    }\n\n    if (opts.localAddress) {\n      this.localAddress = opts.localAddress;\n    }\n  }\n\n  // set on handshake\n  this.id = null;\n  this.upgrades = null;\n  this.pingInterval = null;\n  this.pingTimeout = null;\n\n  // set on heartbeat\n  this.pingIntervalTimer = null;\n  this.pingTimeoutTimer = null;\n\n  this.open();\n}\n\nSocket.priorWebsocketSuccess = false;\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Socket.prototype);\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nSocket.protocol = parser.protocol; // this is an int\n\n/**\n * Expose deps for legacy compatibility\n * and standalone browser access.\n */\n\nSocket.Socket = Socket;\nSocket.Transport = require('./transport');\nSocket.transports = require('./transports/index');\nSocket.parser = require('engine.io-parser');\n\n/**\n * Creates transport of the given type.\n *\n * @param {String} transport name\n * @return {Transport}\n * @api private\n */\n\nSocket.prototype.createTransport = function (name) {\n  debug('creating transport \"%s\"', name);\n  var query = clone(this.query);\n\n  // append engine.io protocol identifier\n  query.EIO = parser.protocol;\n\n  // transport name\n  query.transport = name;\n\n  // per-transport options\n  var options = this.transportOptions[name] || {};\n\n  // session id if we already have one\n  if (this.id) query.sid = this.id;\n\n  var transport = new transports[name]({\n    query: query,\n    socket: this,\n    agent: options.agent || this.agent,\n    hostname: options.hostname || this.hostname,\n    port: options.port || this.port,\n    secure: options.secure || this.secure,\n    path: options.path || this.path,\n    forceJSONP: options.forceJSONP || this.forceJSONP,\n    jsonp: options.jsonp || this.jsonp,\n    forceBase64: options.forceBase64 || this.forceBase64,\n    enablesXDR: options.enablesXDR || this.enablesXDR,\n    timestampRequests: options.timestampRequests || this.timestampRequests,\n    timestampParam: options.timestampParam || this.timestampParam,\n    policyPort: options.policyPort || this.policyPort,\n    pfx: options.pfx || this.pfx,\n    key: options.key || this.key,\n    passphrase: options.passphrase || this.passphrase,\n    cert: options.cert || this.cert,\n    ca: options.ca || this.ca,\n    ciphers: options.ciphers || this.ciphers,\n    rejectUnauthorized: options.rejectUnauthorized || this.rejectUnauthorized,\n    perMessageDeflate: options.perMessageDeflate || this.perMessageDeflate,\n    extraHeaders: options.extraHeaders || this.extraHeaders,\n    forceNode: options.forceNode || this.forceNode,\n    localAddress: options.localAddress || this.localAddress,\n    requestTimeout: options.requestTimeout || this.requestTimeout,\n    protocols: options.protocols || void (0),\n    isReactNative: this.isReactNative\n  });\n\n  return transport;\n};\n\nfunction clone (obj) {\n  var o = {};\n  for (var i in obj) {\n    if (obj.hasOwnProperty(i)) {\n      o[i] = obj[i];\n    }\n  }\n  return o;\n}\n\n/**\n * Initializes transport to use and starts probe.\n *\n * @api private\n */\nSocket.prototype.open = function () {\n  var transport;\n  if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') !== -1) {\n    transport = 'websocket';\n  } else if (0 === this.transports.length) {\n    // Emit error on next tick so it can be listened to\n    var self = this;\n    setTimeout(function () {\n      self.emit('error', 'No transports available');\n    }, 0);\n    return;\n  } else {\n    transport = this.transports[0];\n  }\n  this.readyState = 'opening';\n\n  // Retry with the next transport if the transport is disabled (jsonp: false)\n  try {\n    transport = this.createTransport(transport);\n  } catch (e) {\n    this.transports.shift();\n    this.open();\n    return;\n  }\n\n  transport.open();\n  this.setTransport(transport);\n};\n\n/**\n * Sets the current transport. Disables the existing one (if any).\n *\n * @api private\n */\n\nSocket.prototype.setTransport = function (transport) {\n  debug('setting transport %s', transport.name);\n  var self = this;\n\n  if (this.transport) {\n    debug('clearing existing transport %s', this.transport.name);\n    this.transport.removeAllListeners();\n  }\n\n  // set up transport\n  this.transport = transport;\n\n  // set up transport listeners\n  transport\n  .on('drain', function () {\n    self.onDrain();\n  })\n  .on('packet', function (packet) {\n    self.onPacket(packet);\n  })\n  .on('error', function (e) {\n    self.onError(e);\n  })\n  .on('close', function () {\n    self.onClose('transport close');\n  });\n};\n\n/**\n * Probes a transport.\n *\n * @param {String} transport name\n * @api private\n */\n\nSocket.prototype.probe = function (name) {\n  debug('probing transport \"%s\"', name);\n  var transport = this.createTransport(name, { probe: 1 });\n  var failed = false;\n  var self = this;\n\n  Socket.priorWebsocketSuccess = false;\n\n  function onTransportOpen () {\n    if (self.onlyBinaryUpgrades) {\n      var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;\n      failed = failed || upgradeLosesBinary;\n    }\n    if (failed) return;\n\n    debug('probe transport \"%s\" opened', name);\n    transport.send([{ type: 'ping', data: 'probe' }]);\n    transport.once('packet', function (msg) {\n      if (failed) return;\n      if ('pong' === msg.type && 'probe' === msg.data) {\n        debug('probe transport \"%s\" pong', name);\n        self.upgrading = true;\n        self.emit('upgrading', transport);\n        if (!transport) return;\n        Socket.priorWebsocketSuccess = 'websocket' === transport.name;\n\n        debug('pausing current transport \"%s\"', self.transport.name);\n        self.transport.pause(function () {\n          if (failed) return;\n          if ('closed' === self.readyState) return;\n          debug('changing transport and sending upgrade packet');\n\n          cleanup();\n\n          self.setTransport(transport);\n          transport.send([{ type: 'upgrade' }]);\n          self.emit('upgrade', transport);\n          transport = null;\n          self.upgrading = false;\n          self.flush();\n        });\n      } else {\n        debug('probe transport \"%s\" failed', name);\n        var err = new Error('probe error');\n        err.transport = transport.name;\n        self.emit('upgradeError', err);\n      }\n    });\n  }\n\n  function freezeTransport () {\n    if (failed) return;\n\n    // Any callback called by transport should be ignored since now\n    failed = true;\n\n    cleanup();\n\n    transport.close();\n    transport = null;\n  }\n\n  // Handle any error that happens while probing\n  function onerror (err) {\n    var error = new Error('probe error: ' + err);\n    error.transport = transport.name;\n\n    freezeTransport();\n\n    debug('probe transport \"%s\" failed because of error: %s', name, err);\n\n    self.emit('upgradeError', error);\n  }\n\n  function onTransportClose () {\n    onerror('transport closed');\n  }\n\n  // When the socket is closed while we're probing\n  function onclose () {\n    onerror('socket closed');\n  }\n\n  // When the socket is upgraded while we're probing\n  function onupgrade (to) {\n    if (transport && to.name !== transport.name) {\n      debug('\"%s\" works - aborting \"%s\"', to.name, transport.name);\n      freezeTransport();\n    }\n  }\n\n  // Remove all listeners on the transport and on self\n  function cleanup () {\n    transport.removeListener('open', onTransportOpen);\n    transport.removeListener('error', onerror);\n    transport.removeListener('close', onTransportClose);\n    self.removeListener('close', onclose);\n    self.removeListener('upgrading', onupgrade);\n  }\n\n  transport.once('open', onTransportOpen);\n  transport.once('error', onerror);\n  transport.once('close', onTransportClose);\n\n  this.once('close', onclose);\n  this.once('upgrading', onupgrade);\n\n  transport.open();\n};\n\n/**\n * Called when connection is deemed open.\n *\n * @api public\n */\n\nSocket.prototype.onOpen = function () {\n  debug('socket open');\n  this.readyState = 'open';\n  Socket.priorWebsocketSuccess = 'websocket' === this.transport.name;\n  this.emit('open');\n  this.flush();\n\n  // we check for `readyState` in case an `open`\n  // listener already closed the socket\n  if ('open' === this.readyState && this.upgrade && this.transport.pause) {\n    debug('starting upgrade probes');\n    for (var i = 0, l = this.upgrades.length; i < l; i++) {\n      this.probe(this.upgrades[i]);\n    }\n  }\n};\n\n/**\n * Handles a packet.\n *\n * @api private\n */\n\nSocket.prototype.onPacket = function (packet) {\n  if ('opening' === this.readyState || 'open' === this.readyState ||\n      'closing' === this.readyState) {\n    debug('socket receive: type \"%s\", data \"%s\"', packet.type, packet.data);\n\n    this.emit('packet', packet);\n\n    // Socket is live - any packet counts\n    this.emit('heartbeat');\n\n    switch (packet.type) {\n      case 'open':\n        this.onHandshake(JSON.parse(packet.data));\n        break;\n\n      case 'pong':\n        this.setPing();\n        this.emit('pong');\n        break;\n\n      case 'error':\n        var err = new Error('server error');\n        err.code = packet.data;\n        this.onError(err);\n        break;\n\n      case 'message':\n        this.emit('data', packet.data);\n        this.emit('message', packet.data);\n        break;\n    }\n  } else {\n    debug('packet received with socket readyState \"%s\"', this.readyState);\n  }\n};\n\n/**\n * Called upon handshake completion.\n *\n * @param {Object} handshake obj\n * @api private\n */\n\nSocket.prototype.onHandshake = function (data) {\n  this.emit('handshake', data);\n  this.id = data.sid;\n  this.transport.query.sid = data.sid;\n  this.upgrades = this.filterUpgrades(data.upgrades);\n  this.pingInterval = data.pingInterval;\n  this.pingTimeout = data.pingTimeout;\n  this.onOpen();\n  // In case open handler closes socket\n  if ('closed' === this.readyState) return;\n  this.setPing();\n\n  // Prolong liveness of socket on heartbeat\n  this.removeListener('heartbeat', this.onHeartbeat);\n  this.on('heartbeat', this.onHeartbeat);\n};\n\n/**\n * Resets ping timeout.\n *\n * @api private\n */\n\nSocket.prototype.onHeartbeat = function (timeout) {\n  clearTimeout(this.pingTimeoutTimer);\n  var self = this;\n  self.pingTimeoutTimer = setTimeout(function () {\n    if ('closed' === self.readyState) return;\n    self.onClose('ping timeout');\n  }, timeout || (self.pingInterval + self.pingTimeout));\n};\n\n/**\n * Pings server every `this.pingInterval` and expects response\n * within `this.pingTimeout` or closes connection.\n *\n * @api private\n */\n\nSocket.prototype.setPing = function () {\n  var self = this;\n  clearTimeout(self.pingIntervalTimer);\n  self.pingIntervalTimer = setTimeout(function () {\n    debug('writing ping packet - expecting pong within %sms', self.pingTimeout);\n    self.ping();\n    self.onHeartbeat(self.pingTimeout);\n  }, self.pingInterval);\n};\n\n/**\n* Sends a ping packet.\n*\n* @api private\n*/\n\nSocket.prototype.ping = function () {\n  var self = this;\n  this.sendPacket('ping', function () {\n    self.emit('ping');\n  });\n};\n\n/**\n * Called on `drain` event\n *\n * @api private\n */\n\nSocket.prototype.onDrain = function () {\n  this.writeBuffer.splice(0, this.prevBufferLen);\n\n  // setting prevBufferLen = 0 is very important\n  // for example, when upgrading, upgrade packet is sent over,\n  // and a nonzero prevBufferLen could cause problems on `drain`\n  this.prevBufferLen = 0;\n\n  if (0 === this.writeBuffer.length) {\n    this.emit('drain');\n  } else {\n    this.flush();\n  }\n};\n\n/**\n * Flush write buffers.\n *\n * @api private\n */\n\nSocket.prototype.flush = function () {\n  if ('closed' !== this.readyState && this.transport.writable &&\n    !this.upgrading && this.writeBuffer.length) {\n    debug('flushing %d packets in socket', this.writeBuffer.length);\n    this.transport.send(this.writeBuffer);\n    // keep track of current length of writeBuffer\n    // splice writeBuffer and callbackBuffer on `drain`\n    this.prevBufferLen = this.writeBuffer.length;\n    this.emit('flush');\n  }\n};\n\n/**\n * Sends a message.\n *\n * @param {String} message.\n * @param {Function} callback function.\n * @param {Object} options.\n * @return {Socket} for chaining.\n * @api public\n */\n\nSocket.prototype.write =\nSocket.prototype.send = function (msg, options, fn) {\n  this.sendPacket('message', msg, options, fn);\n  return this;\n};\n\n/**\n * Sends a packet.\n *\n * @param {String} packet type.\n * @param {String} data.\n * @param {Object} options.\n * @param {Function} callback function.\n * @api private\n */\n\nSocket.prototype.sendPacket = function (type, data, options, fn) {\n  if ('function' === typeof data) {\n    fn = data;\n    data = undefined;\n  }\n\n  if ('function' === typeof options) {\n    fn = options;\n    options = null;\n  }\n\n  if ('closing' === this.readyState || 'closed' === this.readyState) {\n    return;\n  }\n\n  options = options || {};\n  options.compress = false !== options.compress;\n\n  var packet = {\n    type: type,\n    data: data,\n    options: options\n  };\n  this.emit('packetCreate', packet);\n  this.writeBuffer.push(packet);\n  if (fn) this.once('flush', fn);\n  this.flush();\n};\n\n/**\n * Closes the connection.\n *\n * @api private\n */\n\nSocket.prototype.close = function () {\n  if ('opening' === this.readyState || 'open' === this.readyState) {\n    this.readyState = 'closing';\n\n    var self = this;\n\n    if (this.writeBuffer.length) {\n      this.once('drain', function () {\n        if (this.upgrading) {\n          waitForUpgrade();\n        } else {\n          close();\n        }\n      });\n    } else if (this.upgrading) {\n      waitForUpgrade();\n    } else {\n      close();\n    }\n  }\n\n  function close () {\n    self.onClose('forced close');\n    debug('socket closing - telling transport to close');\n    self.transport.close();\n  }\n\n  function cleanupAndClose () {\n    self.removeListener('upgrade', cleanupAndClose);\n    self.removeListener('upgradeError', cleanupAndClose);\n    close();\n  }\n\n  function waitForUpgrade () {\n    // wait for upgrade to finish since we can't send packets while pausing a transport\n    self.once('upgrade', cleanupAndClose);\n    self.once('upgradeError', cleanupAndClose);\n  }\n\n  return this;\n};\n\n/**\n * Called upon transport error\n *\n * @api private\n */\n\nSocket.prototype.onError = function (err) {\n  debug('socket error %j', err);\n  Socket.priorWebsocketSuccess = false;\n  this.emit('error', err);\n  this.onClose('transport error', err);\n};\n\n/**\n * Called upon transport close.\n *\n * @api private\n */\n\nSocket.prototype.onClose = function (reason, desc) {\n  if ('opening' === this.readyState || 'open' === this.readyState || 'closing' === this.readyState) {\n    debug('socket close with reason: \"%s\"', reason);\n    var self = this;\n\n    // clear timers\n    clearTimeout(this.pingIntervalTimer);\n    clearTimeout(this.pingTimeoutTimer);\n\n    // stop event from firing again for transport\n    this.transport.removeAllListeners('close');\n\n    // ensure transport won't stay open\n    this.transport.close();\n\n    // ignore further transport communication\n    this.transport.removeAllListeners();\n\n    // set ready state\n    this.readyState = 'closed';\n\n    // clear session id\n    this.id = null;\n\n    // emit close event\n    this.emit('close', reason, desc);\n\n    // clean buffers after, so users can still\n    // grab the buffers on `close` event\n    self.writeBuffer = [];\n    self.prevBufferLen = 0;\n  }\n};\n\n/**\n * Filters upgrades, returning only those matching client transports.\n *\n * @param {Array} server upgrades\n * @api private\n *\n */\n\nSocket.prototype.filterUpgrades = function (upgrades) {\n  var filteredUpgrades = [];\n  for (var i = 0, j = upgrades.length; i < j; i++) {\n    if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);\n  }\n  return filteredUpgrades;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/socket.js\n// module id = 14\n// module chunks = 0","/**\n * Module dependencies\n */\n\nvar XMLHttpRequest = require('xmlhttprequest-ssl');\nvar XHR = require('./polling-xhr');\nvar JSONP = require('./polling-jsonp');\nvar websocket = require('./websocket');\n\n/**\n * Export transports.\n */\n\nexports.polling = polling;\nexports.websocket = websocket;\n\n/**\n * Polling transport polymorphic constructor.\n * Decides on xhr vs jsonp based on feature detection.\n *\n * @api private\n */\n\nfunction polling (opts) {\n  var xhr;\n  var xd = false;\n  var xs = false;\n  var jsonp = false !== opts.jsonp;\n\n  if (typeof location !== 'undefined') {\n    var isSSL = 'https:' === location.protocol;\n    var port = location.port;\n\n    // some user agents have empty `location.port`\n    if (!port) {\n      port = isSSL ? 443 : 80;\n    }\n\n    xd = opts.hostname !== location.hostname || port !== opts.port;\n    xs = opts.secure !== isSSL;\n  }\n\n  opts.xdomain = xd;\n  opts.xscheme = xs;\n  xhr = new XMLHttpRequest(opts);\n\n  if ('open' in xhr && !opts.forceJSONP) {\n    return new XHR(opts);\n  } else {\n    if (!jsonp) throw new Error('JSONP disabled');\n    return new JSONP(opts);\n  }\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/index.js\n// module id = 15\n// module chunks = 0","// browser shim for xmlhttprequest module\n\nvar hasCORS = require('has-cors');\n\nmodule.exports = function (opts) {\n  var xdomain = opts.xdomain;\n\n  // scheme must be same when usign XDomainRequest\n  // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx\n  var xscheme = opts.xscheme;\n\n  // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.\n  // https://github.com/Automattic/engine.io-client/pull/217\n  var enablesXDR = opts.enablesXDR;\n\n  // XMLHttpRequest can be disabled on IE\n  try {\n    if ('undefined' !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n      return new XMLHttpRequest();\n    }\n  } catch (e) { }\n\n  // Use XDomainRequest for IE8 if enablesXDR is true\n  // because loading bar keeps flashing when using jsonp-polling\n  // https://github.com/yujiosaka/socke.io-ie8-loading-example\n  try {\n    if ('undefined' !== typeof XDomainRequest && !xscheme && enablesXDR) {\n      return new XDomainRequest();\n    }\n  } catch (e) { }\n\n  if (!xdomain) {\n    try {\n      return new self[['Active'].concat('Object').join('X')]('Microsoft.XMLHTTP');\n    } catch (e) { }\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/xmlhttprequest.js\n// module id = 16\n// module chunks = 0","\n/**\n * Module exports.\n *\n * Logic borrowed from Modernizr:\n *\n *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js\n */\n\ntry {\n  module.exports = typeof XMLHttpRequest !== 'undefined' &&\n    'withCredentials' in new XMLHttpRequest();\n} catch (err) {\n  // if XMLHttp support is disabled in IE then it will throw\n  // when trying to create\n  module.exports = false;\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/has-cors/index.js\n// module id = 17\n// module chunks = 0","/* global attachEvent */\n\n/**\n * Module requirements.\n */\n\nvar XMLHttpRequest = require('xmlhttprequest-ssl');\nvar Polling = require('./polling');\nvar Emitter = require('component-emitter');\nvar inherit = require('component-inherit');\nvar debug = require('debug')('engine.io-client:polling-xhr');\n\n/**\n * Module exports.\n */\n\nmodule.exports = XHR;\nmodule.exports.Request = Request;\n\n/**\n * Empty function\n */\n\nfunction empty () {}\n\n/**\n * XHR Polling constructor.\n *\n * @param {Object} opts\n * @api public\n */\n\nfunction XHR (opts) {\n  Polling.call(this, opts);\n  this.requestTimeout = opts.requestTimeout;\n  this.extraHeaders = opts.extraHeaders;\n\n  if (typeof location !== 'undefined') {\n    var isSSL = 'https:' === location.protocol;\n    var port = location.port;\n\n    // some user agents have empty `location.port`\n    if (!port) {\n      port = isSSL ? 443 : 80;\n    }\n\n    this.xd = (typeof location !== 'undefined' && opts.hostname !== location.hostname) ||\n      port !== opts.port;\n    this.xs = opts.secure !== isSSL;\n  }\n}\n\n/**\n * Inherits from Polling.\n */\n\ninherit(XHR, Polling);\n\n/**\n * XHR supports binary\n */\n\nXHR.prototype.supportsBinary = true;\n\n/**\n * Creates a request.\n *\n * @param {String} method\n * @api private\n */\n\nXHR.prototype.request = function (opts) {\n  opts = opts || {};\n  opts.uri = this.uri();\n  opts.xd = this.xd;\n  opts.xs = this.xs;\n  opts.agent = this.agent || false;\n  opts.supportsBinary = this.supportsBinary;\n  opts.enablesXDR = this.enablesXDR;\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n  opts.requestTimeout = this.requestTimeout;\n\n  // other options for Node.js client\n  opts.extraHeaders = this.extraHeaders;\n\n  return new Request(opts);\n};\n\n/**\n * Sends data.\n *\n * @param {String} data to send.\n * @param {Function} called upon flush.\n * @api private\n */\n\nXHR.prototype.doWrite = function (data, fn) {\n  var isBinary = typeof data !== 'string' && data !== undefined;\n  var req = this.request({ method: 'POST', data: data, isBinary: isBinary });\n  var self = this;\n  req.on('success', fn);\n  req.on('error', function (err) {\n    self.onError('xhr post error', err);\n  });\n  this.sendXhr = req;\n};\n\n/**\n * Starts a poll cycle.\n *\n * @api private\n */\n\nXHR.prototype.doPoll = function () {\n  debug('xhr poll');\n  var req = this.request();\n  var self = this;\n  req.on('data', function (data) {\n    self.onData(data);\n  });\n  req.on('error', function (err) {\n    self.onError('xhr poll error', err);\n  });\n  this.pollXhr = req;\n};\n\n/**\n * Request constructor\n *\n * @param {Object} options\n * @api public\n */\n\nfunction Request (opts) {\n  this.method = opts.method || 'GET';\n  this.uri = opts.uri;\n  this.xd = !!opts.xd;\n  this.xs = !!opts.xs;\n  this.async = false !== opts.async;\n  this.data = undefined !== opts.data ? opts.data : null;\n  this.agent = opts.agent;\n  this.isBinary = opts.isBinary;\n  this.supportsBinary = opts.supportsBinary;\n  this.enablesXDR = opts.enablesXDR;\n  this.requestTimeout = opts.requestTimeout;\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx;\n  this.key = opts.key;\n  this.passphrase = opts.passphrase;\n  this.cert = opts.cert;\n  this.ca = opts.ca;\n  this.ciphers = opts.ciphers;\n  this.rejectUnauthorized = opts.rejectUnauthorized;\n\n  // other options for Node.js client\n  this.extraHeaders = opts.extraHeaders;\n\n  this.create();\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Request.prototype);\n\n/**\n * Creates the XHR object and sends the request.\n *\n * @api private\n */\n\nRequest.prototype.create = function () {\n  var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n\n  var xhr = this.xhr = new XMLHttpRequest(opts);\n  var self = this;\n\n  try {\n    debug('xhr open %s: %s', this.method, this.uri);\n    xhr.open(this.method, this.uri, this.async);\n    try {\n      if (this.extraHeaders) {\n        xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n        for (var i in this.extraHeaders) {\n          if (this.extraHeaders.hasOwnProperty(i)) {\n            xhr.setRequestHeader(i, this.extraHeaders[i]);\n          }\n        }\n      }\n    } catch (e) {}\n\n    if ('POST' === this.method) {\n      try {\n        if (this.isBinary) {\n          xhr.setRequestHeader('Content-type', 'application/octet-stream');\n        } else {\n          xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');\n        }\n      } catch (e) {}\n    }\n\n    try {\n      xhr.setRequestHeader('Accept', '*/*');\n    } catch (e) {}\n\n    // ie6 check\n    if ('withCredentials' in xhr) {\n      xhr.withCredentials = true;\n    }\n\n    if (this.requestTimeout) {\n      xhr.timeout = this.requestTimeout;\n    }\n\n    if (this.hasXDR()) {\n      xhr.onload = function () {\n        self.onLoad();\n      };\n      xhr.onerror = function () {\n        self.onError(xhr.responseText);\n      };\n    } else {\n      xhr.onreadystatechange = function () {\n        if (xhr.readyState === 2) {\n          try {\n            var contentType = xhr.getResponseHeader('Content-Type');\n            if (self.supportsBinary && contentType === 'application/octet-stream') {\n              xhr.responseType = 'arraybuffer';\n            }\n          } catch (e) {}\n        }\n        if (4 !== xhr.readyState) return;\n        if (200 === xhr.status || 1223 === xhr.status) {\n          self.onLoad();\n        } else {\n          // make sure the `error` event handler that's user-set\n          // does not throw in the same tick and gets caught here\n          setTimeout(function () {\n            self.onError(xhr.status);\n          }, 0);\n        }\n      };\n    }\n\n    debug('xhr data %s', this.data);\n    xhr.send(this.data);\n  } catch (e) {\n    // Need to defer since .create() is called directly fhrom the constructor\n    // and thus the 'error' event can only be only bound *after* this exception\n    // occurs.  Therefore, also, we cannot throw here at all.\n    setTimeout(function () {\n      self.onError(e);\n    }, 0);\n    return;\n  }\n\n  if (typeof document !== 'undefined') {\n    this.index = Request.requestsCount++;\n    Request.requests[this.index] = this;\n  }\n};\n\n/**\n * Called upon successful response.\n *\n * @api private\n */\n\nRequest.prototype.onSuccess = function () {\n  this.emit('success');\n  this.cleanup();\n};\n\n/**\n * Called if we have data.\n *\n * @api private\n */\n\nRequest.prototype.onData = function (data) {\n  this.emit('data', data);\n  this.onSuccess();\n};\n\n/**\n * Called upon error.\n *\n * @api private\n */\n\nRequest.prototype.onError = function (err) {\n  this.emit('error', err);\n  this.cleanup(true);\n};\n\n/**\n * Cleans up house.\n *\n * @api private\n */\n\nRequest.prototype.cleanup = function (fromError) {\n  if ('undefined' === typeof this.xhr || null === this.xhr) {\n    return;\n  }\n  // xmlhttprequest\n  if (this.hasXDR()) {\n    this.xhr.onload = this.xhr.onerror = empty;\n  } else {\n    this.xhr.onreadystatechange = empty;\n  }\n\n  if (fromError) {\n    try {\n      this.xhr.abort();\n    } catch (e) {}\n  }\n\n  if (typeof document !== 'undefined') {\n    delete Request.requests[this.index];\n  }\n\n  this.xhr = null;\n};\n\n/**\n * Called upon load.\n *\n * @api private\n */\n\nRequest.prototype.onLoad = function () {\n  var data;\n  try {\n    var contentType;\n    try {\n      contentType = this.xhr.getResponseHeader('Content-Type');\n    } catch (e) {}\n    if (contentType === 'application/octet-stream') {\n      data = this.xhr.response || this.xhr.responseText;\n    } else {\n      data = this.xhr.responseText;\n    }\n  } catch (e) {\n    this.onError(e);\n  }\n  if (null != data) {\n    this.onData(data);\n  }\n};\n\n/**\n * Check if it has XDomainRequest.\n *\n * @api private\n */\n\nRequest.prototype.hasXDR = function () {\n  return typeof XDomainRequest !== 'undefined' && !this.xs && this.enablesXDR;\n};\n\n/**\n * Aborts the request.\n *\n * @api public\n */\n\nRequest.prototype.abort = function () {\n  this.cleanup();\n};\n\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\n\nRequest.requestsCount = 0;\nRequest.requests = {};\n\nif (typeof document !== 'undefined') {\n  if (typeof attachEvent === 'function') {\n    attachEvent('onunload', unloadHandler);\n  } else if (typeof addEventListener === 'function') {\n    var terminationEvent = 'onpagehide' in self ? 'pagehide' : 'unload';\n    addEventListener(terminationEvent, unloadHandler, false);\n  }\n}\n\nfunction unloadHandler () {\n  for (var i in Request.requests) {\n    if (Request.requests.hasOwnProperty(i)) {\n      Request.requests[i].abort();\n    }\n  }\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/polling-xhr.js\n// module id = 18\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar Transport = require('../transport');\nvar parseqs = require('parseqs');\nvar parser = require('engine.io-parser');\nvar inherit = require('component-inherit');\nvar yeast = require('yeast');\nvar debug = require('debug')('engine.io-client:polling');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Polling;\n\n/**\n * Is XHR2 supported?\n */\n\nvar hasXHR2 = (function () {\n  var XMLHttpRequest = require('xmlhttprequest-ssl');\n  var xhr = new XMLHttpRequest({ xdomain: false });\n  return null != xhr.responseType;\n})();\n\n/**\n * Polling interface.\n *\n * @param {Object} opts\n * @api private\n */\n\nfunction Polling (opts) {\n  var forceBase64 = (opts && opts.forceBase64);\n  if (!hasXHR2 || forceBase64) {\n    this.supportsBinary = false;\n  }\n  Transport.call(this, opts);\n}\n\n/**\n * Inherits from Transport.\n */\n\ninherit(Polling, Transport);\n\n/**\n * Transport name.\n */\n\nPolling.prototype.name = 'polling';\n\n/**\n * Opens the socket (triggers polling). We write a PING message to determine\n * when the transport is open.\n *\n * @api private\n */\n\nPolling.prototype.doOpen = function () {\n  this.poll();\n};\n\n/**\n * Pauses polling.\n *\n * @param {Function} callback upon buffers are flushed and transport is paused\n * @api private\n */\n\nPolling.prototype.pause = function (onPause) {\n  var self = this;\n\n  this.readyState = 'pausing';\n\n  function pause () {\n    debug('paused');\n    self.readyState = 'paused';\n    onPause();\n  }\n\n  if (this.polling || !this.writable) {\n    var total = 0;\n\n    if (this.polling) {\n      debug('we are currently polling - waiting to pause');\n      total++;\n      this.once('pollComplete', function () {\n        debug('pre-pause polling complete');\n        --total || pause();\n      });\n    }\n\n    if (!this.writable) {\n      debug('we are currently writing - waiting to pause');\n      total++;\n      this.once('drain', function () {\n        debug('pre-pause writing complete');\n        --total || pause();\n      });\n    }\n  } else {\n    pause();\n  }\n};\n\n/**\n * Starts polling cycle.\n *\n * @api public\n */\n\nPolling.prototype.poll = function () {\n  debug('polling');\n  this.polling = true;\n  this.doPoll();\n  this.emit('poll');\n};\n\n/**\n * Overloads onData to detect payloads.\n *\n * @api private\n */\n\nPolling.prototype.onData = function (data) {\n  var self = this;\n  debug('polling got data %s', data);\n  var callback = function (packet, index, total) {\n    // if its the first message we consider the transport open\n    if ('opening' === self.readyState) {\n      self.onOpen();\n    }\n\n    // if its a close packet, we close the ongoing requests\n    if ('close' === packet.type) {\n      self.onClose();\n      return false;\n    }\n\n    // otherwise bypass onData and handle the message\n    self.onPacket(packet);\n  };\n\n  // decode payload\n  parser.decodePayload(data, this.socket.binaryType, callback);\n\n  // if an event did not trigger closing\n  if ('closed' !== this.readyState) {\n    // if we got data we're not polling\n    this.polling = false;\n    this.emit('pollComplete');\n\n    if ('open' === this.readyState) {\n      this.poll();\n    } else {\n      debug('ignoring poll - transport state \"%s\"', this.readyState);\n    }\n  }\n};\n\n/**\n * For polling, send a close packet.\n *\n * @api private\n */\n\nPolling.prototype.doClose = function () {\n  var self = this;\n\n  function close () {\n    debug('writing close packet');\n    self.write([{ type: 'close' }]);\n  }\n\n  if ('open' === this.readyState) {\n    debug('transport open - closing');\n    close();\n  } else {\n    // in case we're trying to close while\n    // handshaking is in progress (GH-164)\n    debug('transport not open - deferring close');\n    this.once('open', close);\n  }\n};\n\n/**\n * Writes a packets payload.\n *\n * @param {Array} data packets\n * @param {Function} drain callback\n * @api private\n */\n\nPolling.prototype.write = function (packets) {\n  var self = this;\n  this.writable = false;\n  var callbackfn = function () {\n    self.writable = true;\n    self.emit('drain');\n  };\n\n  parser.encodePayload(packets, this.supportsBinary, function (data) {\n    self.doWrite(data, callbackfn);\n  });\n};\n\n/**\n * Generates uri for connection.\n *\n * @api private\n */\n\nPolling.prototype.uri = function () {\n  var query = this.query || {};\n  var schema = this.secure ? 'https' : 'http';\n  var port = '';\n\n  // cache busting is forced\n  if (false !== this.timestampRequests) {\n    query[this.timestampParam] = yeast();\n  }\n\n  if (!this.supportsBinary && !query.sid) {\n    query.b64 = 1;\n  }\n\n  query = parseqs.encode(query);\n\n  // avoid port if default for schema\n  if (this.port && (('https' === schema && Number(this.port) !== 443) ||\n     ('http' === schema && Number(this.port) !== 80))) {\n    port = ':' + this.port;\n  }\n\n  // prepend ? to query\n  if (query.length) {\n    query = '?' + query;\n  }\n\n  var ipv6 = this.hostname.indexOf(':') !== -1;\n  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/polling.js\n// module id = 19\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar parser = require('engine.io-parser');\nvar Emitter = require('component-emitter');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Transport;\n\n/**\n * Transport abstract constructor.\n *\n * @param {Object} options.\n * @api private\n */\n\nfunction Transport (opts) {\n  this.path = opts.path;\n  this.hostname = opts.hostname;\n  this.port = opts.port;\n  this.secure = opts.secure;\n  this.query = opts.query;\n  this.timestampParam = opts.timestampParam;\n  this.timestampRequests = opts.timestampRequests;\n  this.readyState = '';\n  this.agent = opts.agent || false;\n  this.socket = opts.socket;\n  this.enablesXDR = opts.enablesXDR;\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx;\n  this.key = opts.key;\n  this.passphrase = opts.passphrase;\n  this.cert = opts.cert;\n  this.ca = opts.ca;\n  this.ciphers = opts.ciphers;\n  this.rejectUnauthorized = opts.rejectUnauthorized;\n  this.forceNode = opts.forceNode;\n\n  // results of ReactNative environment detection\n  this.isReactNative = opts.isReactNative;\n\n  // other options for Node.js client\n  this.extraHeaders = opts.extraHeaders;\n  this.localAddress = opts.localAddress;\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Transport.prototype);\n\n/**\n * Emits an error.\n *\n * @param {String} str\n * @return {Transport} for chaining\n * @api public\n */\n\nTransport.prototype.onError = function (msg, desc) {\n  var err = new Error(msg);\n  err.type = 'TransportError';\n  err.description = desc;\n  this.emit('error', err);\n  return this;\n};\n\n/**\n * Opens the transport.\n *\n * @api public\n */\n\nTransport.prototype.open = function () {\n  if ('closed' === this.readyState || '' === this.readyState) {\n    this.readyState = 'opening';\n    this.doOpen();\n  }\n\n  return this;\n};\n\n/**\n * Closes the transport.\n *\n * @api private\n */\n\nTransport.prototype.close = function () {\n  if ('opening' === this.readyState || 'open' === this.readyState) {\n    this.doClose();\n    this.onClose();\n  }\n\n  return this;\n};\n\n/**\n * Sends multiple packets.\n *\n * @param {Array} packets\n * @api private\n */\n\nTransport.prototype.send = function (packets) {\n  if ('open' === this.readyState) {\n    this.write(packets);\n  } else {\n    throw new Error('Transport not open');\n  }\n};\n\n/**\n * Called upon open\n *\n * @api private\n */\n\nTransport.prototype.onOpen = function () {\n  this.readyState = 'open';\n  this.writable = true;\n  this.emit('open');\n};\n\n/**\n * Called with data.\n *\n * @param {String} data\n * @api private\n */\n\nTransport.prototype.onData = function (data) {\n  var packet = parser.decodePacket(data, this.socket.binaryType);\n  this.onPacket(packet);\n};\n\n/**\n * Called with a decoded packet.\n */\n\nTransport.prototype.onPacket = function (packet) {\n  this.emit('packet', packet);\n};\n\n/**\n * Called upon close.\n *\n * @api private\n */\n\nTransport.prototype.onClose = function () {\n  this.readyState = 'closed';\n  this.emit('close');\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transport.js\n// module id = 20\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar keys = require('./keys');\nvar hasBinary = require('has-binary2');\nvar sliceBuffer = require('arraybuffer.slice');\nvar after = require('after');\nvar utf8 = require('./utf8');\n\nvar base64encoder;\nif (typeof ArrayBuffer !== 'undefined') {\n  base64encoder = require('base64-arraybuffer');\n}\n\n/**\n * Check if we are running an android browser. That requires us to use\n * ArrayBuffer with polling transports...\n *\n * http://ghinda.net/jpeg-blob-ajax-android/\n */\n\nvar isAndroid = typeof navigator !== 'undefined' && /Android/i.test(navigator.userAgent);\n\n/**\n * Check if we are running in PhantomJS.\n * Uploading a Blob with PhantomJS does not work correctly, as reported here:\n * https://github.com/ariya/phantomjs/issues/11395\n * @type boolean\n */\nvar isPhantomJS = typeof navigator !== 'undefined' && /PhantomJS/i.test(navigator.userAgent);\n\n/**\n * When true, avoids using Blobs to encode payloads.\n * @type boolean\n */\nvar dontSendBlobs = isAndroid || isPhantomJS;\n\n/**\n * Current protocol version.\n */\n\nexports.protocol = 3;\n\n/**\n * Packet types.\n */\n\nvar packets = exports.packets = {\n    open:     0    // non-ws\n  , close:    1    // non-ws\n  , ping:     2\n  , pong:     3\n  , message:  4\n  , upgrade:  5\n  , noop:     6\n};\n\nvar packetslist = keys(packets);\n\n/**\n * Premade error packet.\n */\n\nvar err = { type: 'error', data: 'parser error' };\n\n/**\n * Create a blob api even for blob builder when vendor prefixes exist\n */\n\nvar Blob = require('blob');\n\n/**\n * Encodes a packet.\n *\n *     <packet type id> [ <data> ]\n *\n * Example:\n *\n *     5hello world\n *     3\n *     4\n *\n * Binary is encoded in an identical principle\n *\n * @api private\n */\n\nexports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {\n  if (typeof supportsBinary === 'function') {\n    callback = supportsBinary;\n    supportsBinary = false;\n  }\n\n  if (typeof utf8encode === 'function') {\n    callback = utf8encode;\n    utf8encode = null;\n  }\n\n  var data = (packet.data === undefined)\n    ? undefined\n    : packet.data.buffer || packet.data;\n\n  if (typeof ArrayBuffer !== 'undefined' && data instanceof ArrayBuffer) {\n    return encodeArrayBuffer(packet, supportsBinary, callback);\n  } else if (typeof Blob !== 'undefined' && data instanceof Blob) {\n    return encodeBlob(packet, supportsBinary, callback);\n  }\n\n  // might be an object with { base64: true, data: dataAsBase64String }\n  if (data && data.base64) {\n    return encodeBase64Object(packet, callback);\n  }\n\n  // Sending data as a utf-8 string\n  var encoded = packets[packet.type];\n\n  // data fragment is optional\n  if (undefined !== packet.data) {\n    encoded += utf8encode ? utf8.encode(String(packet.data), { strict: false }) : String(packet.data);\n  }\n\n  return callback('' + encoded);\n\n};\n\nfunction encodeBase64Object(packet, callback) {\n  // packet data is an object { base64: true, data: dataAsBase64String }\n  var message = 'b' + exports.packets[packet.type] + packet.data.data;\n  return callback(message);\n}\n\n/**\n * Encode packet helpers for binary types\n */\n\nfunction encodeArrayBuffer(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  var data = packet.data;\n  var contentArray = new Uint8Array(data);\n  var resultBuffer = new Uint8Array(1 + data.byteLength);\n\n  resultBuffer[0] = packets[packet.type];\n  for (var i = 0; i < contentArray.length; i++) {\n    resultBuffer[i+1] = contentArray[i];\n  }\n\n  return callback(resultBuffer.buffer);\n}\n\nfunction encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  var fr = new FileReader();\n  fr.onload = function() {\n    exports.encodePacket({ type: packet.type, data: fr.result }, supportsBinary, true, callback);\n  };\n  return fr.readAsArrayBuffer(packet.data);\n}\n\nfunction encodeBlob(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  if (dontSendBlobs) {\n    return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);\n  }\n\n  var length = new Uint8Array(1);\n  length[0] = packets[packet.type];\n  var blob = new Blob([length.buffer, packet.data]);\n\n  return callback(blob);\n}\n\n/**\n * Encodes a packet with binary data in a base64 string\n *\n * @param {Object} packet, has `type` and `data`\n * @return {String} base64 encoded message\n */\n\nexports.encodeBase64Packet = function(packet, callback) {\n  var message = 'b' + exports.packets[packet.type];\n  if (typeof Blob !== 'undefined' && packet.data instanceof Blob) {\n    var fr = new FileReader();\n    fr.onload = function() {\n      var b64 = fr.result.split(',')[1];\n      callback(message + b64);\n    };\n    return fr.readAsDataURL(packet.data);\n  }\n\n  var b64data;\n  try {\n    b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));\n  } catch (e) {\n    // iPhone Safari doesn't let you apply with typed arrays\n    var typed = new Uint8Array(packet.data);\n    var basic = new Array(typed.length);\n    for (var i = 0; i < typed.length; i++) {\n      basic[i] = typed[i];\n    }\n    b64data = String.fromCharCode.apply(null, basic);\n  }\n  message += btoa(b64data);\n  return callback(message);\n};\n\n/**\n * Decodes a packet. Changes format to Blob if requested.\n *\n * @return {Object} with `type` and `data` (if any)\n * @api private\n */\n\nexports.decodePacket = function (data, binaryType, utf8decode) {\n  if (data === undefined) {\n    return err;\n  }\n  // String data\n  if (typeof data === 'string') {\n    if (data.charAt(0) === 'b') {\n      return exports.decodeBase64Packet(data.substr(1), binaryType);\n    }\n\n    if (utf8decode) {\n      data = tryDecode(data);\n      if (data === false) {\n        return err;\n      }\n    }\n    var type = data.charAt(0);\n\n    if (Number(type) != type || !packetslist[type]) {\n      return err;\n    }\n\n    if (data.length > 1) {\n      return { type: packetslist[type], data: data.substring(1) };\n    } else {\n      return { type: packetslist[type] };\n    }\n  }\n\n  var asArray = new Uint8Array(data);\n  var type = asArray[0];\n  var rest = sliceBuffer(data, 1);\n  if (Blob && binaryType === 'blob') {\n    rest = new Blob([rest]);\n  }\n  return { type: packetslist[type], data: rest };\n};\n\nfunction tryDecode(data) {\n  try {\n    data = utf8.decode(data, { strict: false });\n  } catch (e) {\n    return false;\n  }\n  return data;\n}\n\n/**\n * Decodes a packet encoded in a base64 string\n *\n * @param {String} base64 encoded message\n * @return {Object} with `type` and `data` (if any)\n */\n\nexports.decodeBase64Packet = function(msg, binaryType) {\n  var type = packetslist[msg.charAt(0)];\n  if (!base64encoder) {\n    return { type: type, data: { base64: true, data: msg.substr(1) } };\n  }\n\n  var data = base64encoder.decode(msg.substr(1));\n\n  if (binaryType === 'blob' && Blob) {\n    data = new Blob([data]);\n  }\n\n  return { type: type, data: data };\n};\n\n/**\n * Encodes multiple messages (payload).\n *\n *     <length>:data\n *\n * Example:\n *\n *     11:hello world2:hi\n *\n * If any contents are binary, they will be encoded as base64 strings. Base64\n * encoded strings are marked with a b before the length specifier\n *\n * @param {Array} packets\n * @api private\n */\n\nexports.encodePayload = function (packets, supportsBinary, callback) {\n  if (typeof supportsBinary === 'function') {\n    callback = supportsBinary;\n    supportsBinary = null;\n  }\n\n  var isBinary = hasBinary(packets);\n\n  if (supportsBinary && isBinary) {\n    if (Blob && !dontSendBlobs) {\n      return exports.encodePayloadAsBlob(packets, callback);\n    }\n\n    return exports.encodePayloadAsArrayBuffer(packets, callback);\n  }\n\n  if (!packets.length) {\n    return callback('0:');\n  }\n\n  function setLengthHeader(message) {\n    return message.length + ':' + message;\n  }\n\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, !isBinary ? false : supportsBinary, false, function(message) {\n      doneCallback(null, setLengthHeader(message));\n    });\n  }\n\n  map(packets, encodeOne, function(err, results) {\n    return callback(results.join(''));\n  });\n};\n\n/**\n * Async array map using after\n */\n\nfunction map(ary, each, done) {\n  var result = new Array(ary.length);\n  var next = after(ary.length, done);\n\n  var eachWithIndex = function(i, el, cb) {\n    each(el, function(error, msg) {\n      result[i] = msg;\n      cb(error, result);\n    });\n  };\n\n  for (var i = 0; i < ary.length; i++) {\n    eachWithIndex(i, ary[i], next);\n  }\n}\n\n/*\n * Decodes data when a payload is maybe expected. Possible binary contents are\n * decoded from their base64 representation\n *\n * @param {String} data, callback method\n * @api public\n */\n\nexports.decodePayload = function (data, binaryType, callback) {\n  if (typeof data !== 'string') {\n    return exports.decodePayloadAsBinary(data, binaryType, callback);\n  }\n\n  if (typeof binaryType === 'function') {\n    callback = binaryType;\n    binaryType = null;\n  }\n\n  var packet;\n  if (data === '') {\n    // parser error - ignoring payload\n    return callback(err, 0, 1);\n  }\n\n  var length = '', n, msg;\n\n  for (var i = 0, l = data.length; i < l; i++) {\n    var chr = data.charAt(i);\n\n    if (chr !== ':') {\n      length += chr;\n      continue;\n    }\n\n    if (length === '' || (length != (n = Number(length)))) {\n      // parser error - ignoring payload\n      return callback(err, 0, 1);\n    }\n\n    msg = data.substr(i + 1, n);\n\n    if (length != msg.length) {\n      // parser error - ignoring payload\n      return callback(err, 0, 1);\n    }\n\n    if (msg.length) {\n      packet = exports.decodePacket(msg, binaryType, false);\n\n      if (err.type === packet.type && err.data === packet.data) {\n        // parser error in individual packet - ignoring payload\n        return callback(err, 0, 1);\n      }\n\n      var ret = callback(packet, i + n, l);\n      if (false === ret) return;\n    }\n\n    // advance cursor\n    i += n;\n    length = '';\n  }\n\n  if (length !== '') {\n    // parser error - ignoring payload\n    return callback(err, 0, 1);\n  }\n\n};\n\n/**\n * Encodes multiple messages (payload) as binary.\n *\n * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number\n * 255><data>\n *\n * Example:\n * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers\n *\n * @param {Array} packets\n * @return {ArrayBuffer} encoded payload\n * @api private\n */\n\nexports.encodePayloadAsArrayBuffer = function(packets, callback) {\n  if (!packets.length) {\n    return callback(new ArrayBuffer(0));\n  }\n\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, true, true, function(data) {\n      return doneCallback(null, data);\n    });\n  }\n\n  map(packets, encodeOne, function(err, encodedPackets) {\n    var totalLength = encodedPackets.reduce(function(acc, p) {\n      var len;\n      if (typeof p === 'string'){\n        len = p.length;\n      } else {\n        len = p.byteLength;\n      }\n      return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2\n    }, 0);\n\n    var resultArray = new Uint8Array(totalLength);\n\n    var bufferIndex = 0;\n    encodedPackets.forEach(function(p) {\n      var isString = typeof p === 'string';\n      var ab = p;\n      if (isString) {\n        var view = new Uint8Array(p.length);\n        for (var i = 0; i < p.length; i++) {\n          view[i] = p.charCodeAt(i);\n        }\n        ab = view.buffer;\n      }\n\n      if (isString) { // not true binary\n        resultArray[bufferIndex++] = 0;\n      } else { // true binary\n        resultArray[bufferIndex++] = 1;\n      }\n\n      var lenStr = ab.byteLength.toString();\n      for (var i = 0; i < lenStr.length; i++) {\n        resultArray[bufferIndex++] = parseInt(lenStr[i]);\n      }\n      resultArray[bufferIndex++] = 255;\n\n      var view = new Uint8Array(ab);\n      for (var i = 0; i < view.length; i++) {\n        resultArray[bufferIndex++] = view[i];\n      }\n    });\n\n    return callback(resultArray.buffer);\n  });\n};\n\n/**\n * Encode as Blob\n */\n\nexports.encodePayloadAsBlob = function(packets, callback) {\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, true, true, function(encoded) {\n      var binaryIdentifier = new Uint8Array(1);\n      binaryIdentifier[0] = 1;\n      if (typeof encoded === 'string') {\n        var view = new Uint8Array(encoded.length);\n        for (var i = 0; i < encoded.length; i++) {\n          view[i] = encoded.charCodeAt(i);\n        }\n        encoded = view.buffer;\n        binaryIdentifier[0] = 0;\n      }\n\n      var len = (encoded instanceof ArrayBuffer)\n        ? encoded.byteLength\n        : encoded.size;\n\n      var lenStr = len.toString();\n      var lengthAry = new Uint8Array(lenStr.length + 1);\n      for (var i = 0; i < lenStr.length; i++) {\n        lengthAry[i] = parseInt(lenStr[i]);\n      }\n      lengthAry[lenStr.length] = 255;\n\n      if (Blob) {\n        var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);\n        doneCallback(null, blob);\n      }\n    });\n  }\n\n  map(packets, encodeOne, function(err, results) {\n    return callback(new Blob(results));\n  });\n};\n\n/*\n * Decodes data when a payload is maybe expected. Strings are decoded by\n * interpreting each byte as a key code for entries marked to start with 0. See\n * description of encodePayloadAsBinary\n *\n * @param {ArrayBuffer} data, callback method\n * @api public\n */\n\nexports.decodePayloadAsBinary = function (data, binaryType, callback) {\n  if (typeof binaryType === 'function') {\n    callback = binaryType;\n    binaryType = null;\n  }\n\n  var bufferTail = data;\n  var buffers = [];\n\n  while (bufferTail.byteLength > 0) {\n    var tailArray = new Uint8Array(bufferTail);\n    var isString = tailArray[0] === 0;\n    var msgLength = '';\n\n    for (var i = 1; ; i++) {\n      if (tailArray[i] === 255) break;\n\n      // 310 = char length of Number.MAX_VALUE\n      if (msgLength.length > 310) {\n        return callback(err, 0, 1);\n      }\n\n      msgLength += tailArray[i];\n    }\n\n    bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);\n    msgLength = parseInt(msgLength);\n\n    var msg = sliceBuffer(bufferTail, 0, msgLength);\n    if (isString) {\n      try {\n        msg = String.fromCharCode.apply(null, new Uint8Array(msg));\n      } catch (e) {\n        // iPhone Safari doesn't let you apply to typed arrays\n        var typed = new Uint8Array(msg);\n        msg = '';\n        for (var i = 0; i < typed.length; i++) {\n          msg += String.fromCharCode(typed[i]);\n        }\n      }\n    }\n\n    buffers.push(msg);\n    bufferTail = sliceBuffer(bufferTail, msgLength);\n  }\n\n  var total = buffers.length;\n  buffers.forEach(function(buffer, i) {\n    callback(exports.decodePacket(buffer, binaryType, true), i, total);\n  });\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-parser/lib/browser.js\n// module id = 21\n// module chunks = 0","\n/**\n * Gets the keys for an object.\n *\n * @return {Array} keys\n * @api private\n */\n\nmodule.exports = Object.keys || function keys (obj){\n  var arr = [];\n  var has = Object.prototype.hasOwnProperty;\n\n  for (var i in obj) {\n    if (has.call(obj, i)) {\n      arr.push(i);\n    }\n  }\n  return arr;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-parser/lib/keys.js\n// module id = 22\n// module chunks = 0","/* global Blob File */\n\n/*\n * Module requirements.\n */\n\nvar isArray = require('isarray');\n\nvar toString = Object.prototype.toString;\nvar withNativeBlob = typeof Blob === 'function' ||\n                        typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]';\nvar withNativeFile = typeof File === 'function' ||\n                        typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]';\n\n/**\n * Module exports.\n */\n\nmodule.exports = hasBinary;\n\n/**\n * Checks for binary data.\n *\n * Supports Buffer, ArrayBuffer, Blob and File.\n *\n * @param {Object} anything\n * @api public\n */\n\nfunction hasBinary (obj) {\n  if (!obj || typeof obj !== 'object') {\n    return false;\n  }\n\n  if (isArray(obj)) {\n    for (var i = 0, l = obj.length; i < l; i++) {\n      if (hasBinary(obj[i])) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  if ((typeof Buffer === 'function' && Buffer.isBuffer && Buffer.isBuffer(obj)) ||\n    (typeof ArrayBuffer === 'function' && obj instanceof ArrayBuffer) ||\n    (withNativeBlob && obj instanceof Blob) ||\n    (withNativeFile && obj instanceof File)\n  ) {\n    return true;\n  }\n\n  // see: https://github.com/Automattic/has-binary/pull/4\n  if (obj.toJSON && typeof obj.toJSON === 'function' && arguments.length === 1) {\n    return hasBinary(obj.toJSON(), true);\n  }\n\n  for (var key in obj) {\n    if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n      return true;\n    }\n  }\n\n  return false;\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/has-binary2/index.js\n// module id = 23\n// module chunks = 0","/**\n * An abstraction for slicing an arraybuffer even when\n * ArrayBuffer.prototype.slice is not supported\n *\n * @api public\n */\n\nmodule.exports = function(arraybuffer, start, end) {\n  var bytes = arraybuffer.byteLength;\n  start = start || 0;\n  end = end || bytes;\n\n  if (arraybuffer.slice) { return arraybuffer.slice(start, end); }\n\n  if (start < 0) { start += bytes; }\n  if (end < 0) { end += bytes; }\n  if (end > bytes) { end = bytes; }\n\n  if (start >= bytes || start >= end || bytes === 0) {\n    return new ArrayBuffer(0);\n  }\n\n  var abv = new Uint8Array(arraybuffer);\n  var result = new Uint8Array(end - start);\n  for (var i = start, ii = 0; i < end; i++, ii++) {\n    result[ii] = abv[i];\n  }\n  return result.buffer;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/arraybuffer.slice/index.js\n// module id = 24\n// module chunks = 0","module.exports = after\n\nfunction after(count, callback, err_cb) {\n    var bail = false\n    err_cb = err_cb || noop\n    proxy.count = count\n\n    return (count === 0) ? callback() : proxy\n\n    function proxy(err, result) {\n        if (proxy.count <= 0) {\n            throw new Error('after called too many times')\n        }\n        --proxy.count\n\n        // after first error, rest are passed to err_cb\n        if (err) {\n            bail = true\n            callback(err)\n            // future error callbacks will go to error handler\n            callback = err_cb\n        } else if (proxy.count === 0 && !bail) {\n            callback(null, result)\n        }\n    }\n}\n\nfunction noop() {}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/after/index.js\n// module id = 25\n// module chunks = 0","/*! https://mths.be/utf8js v2.1.2 by @mathias */\n\nvar stringFromCharCode = String.fromCharCode;\n\n// Taken from https://mths.be/punycode\nfunction ucs2decode(string) {\n\tvar output = [];\n\tvar counter = 0;\n\tvar length = string.length;\n\tvar value;\n\tvar extra;\n\twhile (counter < length) {\n\t\tvalue = string.charCodeAt(counter++);\n\t\tif (value >= 0xD800 && value <= 0xDBFF && counter < length) {\n\t\t\t// high surrogate, and there is a next character\n\t\t\textra = string.charCodeAt(counter++);\n\t\t\tif ((extra & 0xFC00) == 0xDC00) { // low surrogate\n\t\t\t\toutput.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);\n\t\t\t} else {\n\t\t\t\t// unmatched surrogate; only append this code unit, in case the next\n\t\t\t\t// code unit is the high surrogate of a surrogate pair\n\t\t\t\toutput.push(value);\n\t\t\t\tcounter--;\n\t\t\t}\n\t\t} else {\n\t\t\toutput.push(value);\n\t\t}\n\t}\n\treturn output;\n}\n\n// Taken from https://mths.be/punycode\nfunction ucs2encode(array) {\n\tvar length = array.length;\n\tvar index = -1;\n\tvar value;\n\tvar output = '';\n\twhile (++index < length) {\n\t\tvalue = array[index];\n\t\tif (value > 0xFFFF) {\n\t\t\tvalue -= 0x10000;\n\t\t\toutput += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);\n\t\t\tvalue = 0xDC00 | value & 0x3FF;\n\t\t}\n\t\toutput += stringFromCharCode(value);\n\t}\n\treturn output;\n}\n\nfunction checkScalarValue(codePoint, strict) {\n\tif (codePoint >= 0xD800 && codePoint <= 0xDFFF) {\n\t\tif (strict) {\n\t\t\tthrow Error(\n\t\t\t\t'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +\n\t\t\t\t' is not a scalar value'\n\t\t\t);\n\t\t}\n\t\treturn false;\n\t}\n\treturn true;\n}\n/*--------------------------------------------------------------------------*/\n\nfunction createByte(codePoint, shift) {\n\treturn stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);\n}\n\nfunction encodeCodePoint(codePoint, strict) {\n\tif ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence\n\t\treturn stringFromCharCode(codePoint);\n\t}\n\tvar symbol = '';\n\tif ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence\n\t\tsymbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);\n\t}\n\telse if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence\n\t\tif (!checkScalarValue(codePoint, strict)) {\n\t\t\tcodePoint = 0xFFFD;\n\t\t}\n\t\tsymbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);\n\t\tsymbol += createByte(codePoint, 6);\n\t}\n\telse if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence\n\t\tsymbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);\n\t\tsymbol += createByte(codePoint, 12);\n\t\tsymbol += createByte(codePoint, 6);\n\t}\n\tsymbol += stringFromCharCode((codePoint & 0x3F) | 0x80);\n\treturn symbol;\n}\n\nfunction utf8encode(string, opts) {\n\topts = opts || {};\n\tvar strict = false !== opts.strict;\n\n\tvar codePoints = ucs2decode(string);\n\tvar length = codePoints.length;\n\tvar index = -1;\n\tvar codePoint;\n\tvar byteString = '';\n\twhile (++index < length) {\n\t\tcodePoint = codePoints[index];\n\t\tbyteString += encodeCodePoint(codePoint, strict);\n\t}\n\treturn byteString;\n}\n\n/*--------------------------------------------------------------------------*/\n\nfunction readContinuationByte() {\n\tif (byteIndex >= byteCount) {\n\t\tthrow Error('Invalid byte index');\n\t}\n\n\tvar continuationByte = byteArray[byteIndex] & 0xFF;\n\tbyteIndex++;\n\n\tif ((continuationByte & 0xC0) == 0x80) {\n\t\treturn continuationByte & 0x3F;\n\t}\n\n\t// If we end up here, it’s not a continuation byte\n\tthrow Error('Invalid continuation byte');\n}\n\nfunction decodeSymbol(strict) {\n\tvar byte1;\n\tvar byte2;\n\tvar byte3;\n\tvar byte4;\n\tvar codePoint;\n\n\tif (byteIndex > byteCount) {\n\t\tthrow Error('Invalid byte index');\n\t}\n\n\tif (byteIndex == byteCount) {\n\t\treturn false;\n\t}\n\n\t// Read first byte\n\tbyte1 = byteArray[byteIndex] & 0xFF;\n\tbyteIndex++;\n\n\t// 1-byte sequence (no continuation bytes)\n\tif ((byte1 & 0x80) == 0) {\n\t\treturn byte1;\n\t}\n\n\t// 2-byte sequence\n\tif ((byte1 & 0xE0) == 0xC0) {\n\t\tbyte2 = readContinuationByte();\n\t\tcodePoint = ((byte1 & 0x1F) << 6) | byte2;\n\t\tif (codePoint >= 0x80) {\n\t\t\treturn codePoint;\n\t\t} else {\n\t\t\tthrow Error('Invalid continuation byte');\n\t\t}\n\t}\n\n\t// 3-byte sequence (may include unpaired surrogates)\n\tif ((byte1 & 0xF0) == 0xE0) {\n\t\tbyte2 = readContinuationByte();\n\t\tbyte3 = readContinuationByte();\n\t\tcodePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;\n\t\tif (codePoint >= 0x0800) {\n\t\t\treturn checkScalarValue(codePoint, strict) ? codePoint : 0xFFFD;\n\t\t} else {\n\t\t\tthrow Error('Invalid continuation byte');\n\t\t}\n\t}\n\n\t// 4-byte sequence\n\tif ((byte1 & 0xF8) == 0xF0) {\n\t\tbyte2 = readContinuationByte();\n\t\tbyte3 = readContinuationByte();\n\t\tbyte4 = readContinuationByte();\n\t\tcodePoint = ((byte1 & 0x07) << 0x12) | (byte2 << 0x0C) |\n\t\t\t(byte3 << 0x06) | byte4;\n\t\tif (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {\n\t\t\treturn codePoint;\n\t\t}\n\t}\n\n\tthrow Error('Invalid UTF-8 detected');\n}\n\nvar byteArray;\nvar byteCount;\nvar byteIndex;\nfunction utf8decode(byteString, opts) {\n\topts = opts || {};\n\tvar strict = false !== opts.strict;\n\n\tbyteArray = ucs2decode(byteString);\n\tbyteCount = byteArray.length;\n\tbyteIndex = 0;\n\tvar codePoints = [];\n\tvar tmp;\n\twhile ((tmp = decodeSymbol(strict)) !== false) {\n\t\tcodePoints.push(tmp);\n\t}\n\treturn ucs2encode(codePoints);\n}\n\nmodule.exports = {\n\tversion: '2.1.2',\n\tencode: utf8encode,\n\tdecode: utf8decode\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-parser/lib/utf8.js\n// module id = 26\n// module chunks = 0","/*\n * base64-arraybuffer\n * https://github.com/niklasvh/base64-arraybuffer\n *\n * Copyright (c) 2012 Niklas von Hertzen\n * Licensed under the MIT license.\n */\n(function(){\n  \"use strict\";\n\n  var chars = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\";\n\n  // Use a lookup table to find the index.\n  var lookup = new Uint8Array(256);\n  for (var i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n  }\n\n  exports.encode = function(arraybuffer) {\n    var bytes = new Uint8Array(arraybuffer),\n    i, len = bytes.length, base64 = \"\";\n\n    for (i = 0; i < len; i+=3) {\n      base64 += chars[bytes[i] >> 2];\n      base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n      base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n      base64 += chars[bytes[i + 2] & 63];\n    }\n\n    if ((len % 3) === 2) {\n      base64 = base64.substring(0, base64.length - 1) + \"=\";\n    } else if (len % 3 === 1) {\n      base64 = base64.substring(0, base64.length - 2) + \"==\";\n    }\n\n    return base64;\n  };\n\n  exports.decode =  function(base64) {\n    var bufferLength = base64.length * 0.75,\n    len = base64.length, i, p = 0,\n    encoded1, encoded2, encoded3, encoded4;\n\n    if (base64[base64.length - 1] === \"=\") {\n      bufferLength--;\n      if (base64[base64.length - 2] === \"=\") {\n        bufferLength--;\n      }\n    }\n\n    var arraybuffer = new ArrayBuffer(bufferLength),\n    bytes = new Uint8Array(arraybuffer);\n\n    for (i = 0; i < len; i+=4) {\n      encoded1 = lookup[base64.charCodeAt(i)];\n      encoded2 = lookup[base64.charCodeAt(i+1)];\n      encoded3 = lookup[base64.charCodeAt(i+2)];\n      encoded4 = lookup[base64.charCodeAt(i+3)];\n\n      bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n      bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n      bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n\n    return arraybuffer;\n  };\n})();\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/base64-arraybuffer/lib/base64-arraybuffer.js\n// module id = 27\n// module chunks = 0","/**\r\n * Create a blob builder even when vendor prefixes exist\r\n */\r\n\r\nvar BlobBuilder = typeof BlobBuilder !== 'undefined' ? BlobBuilder :\r\n  typeof WebKitBlobBuilder !== 'undefined' ? WebKitBlobBuilder :\r\n  typeof MSBlobBuilder !== 'undefined' ? MSBlobBuilder :\r\n  typeof MozBlobBuilder !== 'undefined' ? MozBlobBuilder : \r\n  false;\r\n\r\n/**\r\n * Check if Blob constructor is supported\r\n */\r\n\r\nvar blobSupported = (function() {\r\n  try {\r\n    var a = new Blob(['hi']);\r\n    return a.size === 2;\r\n  } catch(e) {\r\n    return false;\r\n  }\r\n})();\r\n\r\n/**\r\n * Check if Blob constructor supports ArrayBufferViews\r\n * Fails in Safari 6, so we need to map to ArrayBuffers there.\r\n */\r\n\r\nvar blobSupportsArrayBufferView = blobSupported && (function() {\r\n  try {\r\n    var b = new Blob([new Uint8Array([1,2])]);\r\n    return b.size === 2;\r\n  } catch(e) {\r\n    return false;\r\n  }\r\n})();\r\n\r\n/**\r\n * Check if BlobBuilder is supported\r\n */\r\n\r\nvar blobBuilderSupported = BlobBuilder\r\n  && BlobBuilder.prototype.append\r\n  && BlobBuilder.prototype.getBlob;\r\n\r\n/**\r\n * Helper function that maps ArrayBufferViews to ArrayBuffers\r\n * Used by BlobBuilder constructor and old browsers that didn't\r\n * support it in the Blob constructor.\r\n */\r\n\r\nfunction mapArrayBufferViews(ary) {\r\n  return ary.map(function(chunk) {\r\n    if (chunk.buffer instanceof ArrayBuffer) {\r\n      var buf = chunk.buffer;\r\n\r\n      // if this is a subarray, make a copy so we only\r\n      // include the subarray region from the underlying buffer\r\n      if (chunk.byteLength !== buf.byteLength) {\r\n        var copy = new Uint8Array(chunk.byteLength);\r\n        copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));\r\n        buf = copy.buffer;\r\n      }\r\n\r\n      return buf;\r\n    }\r\n\r\n    return chunk;\r\n  });\r\n}\r\n\r\nfunction BlobBuilderConstructor(ary, options) {\r\n  options = options || {};\r\n\r\n  var bb = new BlobBuilder();\r\n  mapArrayBufferViews(ary).forEach(function(part) {\r\n    bb.append(part);\r\n  });\r\n\r\n  return (options.type) ? bb.getBlob(options.type) : bb.getBlob();\r\n};\r\n\r\nfunction BlobConstructor(ary, options) {\r\n  return new Blob(mapArrayBufferViews(ary), options || {});\r\n};\r\n\r\nif (typeof Blob !== 'undefined') {\r\n  BlobBuilderConstructor.prototype = Blob.prototype;\r\n  BlobConstructor.prototype = Blob.prototype;\r\n}\r\n\r\nmodule.exports = (function() {\r\n  if (blobSupported) {\r\n    return blobSupportsArrayBufferView ? Blob : BlobConstructor;\r\n  } else if (blobBuilderSupported) {\r\n    return BlobBuilderConstructor;\r\n  } else {\r\n    return undefined;\r\n  }\r\n})();\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/blob/index.js\n// module id = 28\n// module chunks = 0","/**\r\n * Compiles a querystring\r\n * Returns string representation of the object\r\n *\r\n * @param {Object}\r\n * @api private\r\n */\r\n\r\nexports.encode = function (obj) {\r\n  var str = '';\r\n\r\n  for (var i in obj) {\r\n    if (obj.hasOwnProperty(i)) {\r\n      if (str.length) str += '&';\r\n      str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\r\n    }\r\n  }\r\n\r\n  return str;\r\n};\r\n\r\n/**\r\n * Parses a simple querystring into an object\r\n *\r\n * @param {String} qs\r\n * @api private\r\n */\r\n\r\nexports.decode = function(qs){\r\n  var qry = {};\r\n  var pairs = qs.split('&');\r\n  for (var i = 0, l = pairs.length; i < l; i++) {\r\n    var pair = pairs[i].split('=');\r\n    qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\r\n  }\r\n  return qry;\r\n};\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/parseqs/index.js\n// module id = 29\n// module chunks = 0","\nmodule.exports = function(a, b){\n  var fn = function(){};\n  fn.prototype = b.prototype;\n  a.prototype = new fn;\n  a.prototype.constructor = a;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/component-inherit/index.js\n// module id = 30\n// module chunks = 0","'use strict';\n\nvar alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('')\n  , length = 64\n  , map = {}\n  , seed = 0\n  , i = 0\n  , prev;\n\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nfunction encode(num) {\n  var encoded = '';\n\n  do {\n    encoded = alphabet[num % length] + encoded;\n    num = Math.floor(num / length);\n  } while (num > 0);\n\n  return encoded;\n}\n\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nfunction decode(str) {\n  var decoded = 0;\n\n  for (i = 0; i < str.length; i++) {\n    decoded = decoded * length + map[str.charAt(i)];\n  }\n\n  return decoded;\n}\n\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nfunction yeast() {\n  var now = encode(+new Date());\n\n  if (now !== prev) return seed = 0, prev = now;\n  return now +'.'+ encode(seed++);\n}\n\n//\n// Map each character to its index.\n//\nfor (; i < length; i++) map[alphabet[i]] = i;\n\n//\n// Expose the `yeast`, `encode` and `decode` functions.\n//\nyeast.encode = encode;\nyeast.decode = decode;\nmodule.exports = yeast;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/yeast/index.js\n// module id = 31\n// module chunks = 0","/**\n * Module requirements.\n */\n\nvar Polling = require('./polling');\nvar inherit = require('component-inherit');\n\n/**\n * Module exports.\n */\n\nmodule.exports = JSONPPolling;\n\n/**\n * Cached regular expressions.\n */\n\nvar rNewline = /\\n/g;\nvar rEscapedNewline = /\\\\n/g;\n\n/**\n * Global JSONP callbacks.\n */\n\nvar callbacks;\n\n/**\n * Noop.\n */\n\nfunction empty () { }\n\n/**\n * Until https://github.com/tc39/proposal-global is shipped.\n */\nfunction glob () {\n  return typeof self !== 'undefined' ? self\n      : typeof window !== 'undefined' ? window\n      : typeof global !== 'undefined' ? global : {};\n}\n\n/**\n * JSONP Polling constructor.\n *\n * @param {Object} opts.\n * @api public\n */\n\nfunction JSONPPolling (opts) {\n  Polling.call(this, opts);\n\n  this.query = this.query || {};\n\n  // define global callbacks array if not present\n  // we do this here (lazily) to avoid unneeded global pollution\n  if (!callbacks) {\n    // we need to consider multiple engines in the same page\n    var global = glob();\n    callbacks = global.___eio = (global.___eio || []);\n  }\n\n  // callback identifier\n  this.index = callbacks.length;\n\n  // add callback to jsonp global\n  var self = this;\n  callbacks.push(function (msg) {\n    self.onData(msg);\n  });\n\n  // append to query string\n  this.query.j = this.index;\n\n  // prevent spurious errors from being emitted when the window is unloaded\n  if (typeof addEventListener === 'function') {\n    addEventListener('beforeunload', function () {\n      if (self.script) self.script.onerror = empty;\n    }, false);\n  }\n}\n\n/**\n * Inherits from Polling.\n */\n\ninherit(JSONPPolling, Polling);\n\n/*\n * JSONP only supports binary as base64 encoded strings\n */\n\nJSONPPolling.prototype.supportsBinary = false;\n\n/**\n * Closes the socket.\n *\n * @api private\n */\n\nJSONPPolling.prototype.doClose = function () {\n  if (this.script) {\n    this.script.parentNode.removeChild(this.script);\n    this.script = null;\n  }\n\n  if (this.form) {\n    this.form.parentNode.removeChild(this.form);\n    this.form = null;\n    this.iframe = null;\n  }\n\n  Polling.prototype.doClose.call(this);\n};\n\n/**\n * Starts a poll cycle.\n *\n * @api private\n */\n\nJSONPPolling.prototype.doPoll = function () {\n  var self = this;\n  var script = document.createElement('script');\n\n  if (this.script) {\n    this.script.parentNode.removeChild(this.script);\n    this.script = null;\n  }\n\n  script.async = true;\n  script.src = this.uri();\n  script.onerror = function (e) {\n    self.onError('jsonp poll error', e);\n  };\n\n  var insertAt = document.getElementsByTagName('script')[0];\n  if (insertAt) {\n    insertAt.parentNode.insertBefore(script, insertAt);\n  } else {\n    (document.head || document.body).appendChild(script);\n  }\n  this.script = script;\n\n  var isUAgecko = 'undefined' !== typeof navigator && /gecko/i.test(navigator.userAgent);\n\n  if (isUAgecko) {\n    setTimeout(function () {\n      var iframe = document.createElement('iframe');\n      document.body.appendChild(iframe);\n      document.body.removeChild(iframe);\n    }, 100);\n  }\n};\n\n/**\n * Writes with a hidden iframe.\n *\n * @param {String} data to send\n * @param {Function} called upon flush.\n * @api private\n */\n\nJSONPPolling.prototype.doWrite = function (data, fn) {\n  var self = this;\n\n  if (!this.form) {\n    var form = document.createElement('form');\n    var area = document.createElement('textarea');\n    var id = this.iframeId = 'eio_iframe_' + this.index;\n    var iframe;\n\n    form.className = 'socketio';\n    form.style.position = 'absolute';\n    form.style.top = '-1000px';\n    form.style.left = '-1000px';\n    form.target = id;\n    form.method = 'POST';\n    form.setAttribute('accept-charset', 'utf-8');\n    area.name = 'd';\n    form.appendChild(area);\n    document.body.appendChild(form);\n\n    this.form = form;\n    this.area = area;\n  }\n\n  this.form.action = this.uri();\n\n  function complete () {\n    initIframe();\n    fn();\n  }\n\n  function initIframe () {\n    if (self.iframe) {\n      try {\n        self.form.removeChild(self.iframe);\n      } catch (e) {\n        self.onError('jsonp polling iframe removal error', e);\n      }\n    }\n\n    try {\n      // ie6 dynamic iframes with target=\"\" support (thanks Chris Lambacher)\n      var html = '<iframe src=\"javascript:0\" name=\"' + self.iframeId + '\">';\n      iframe = document.createElement(html);\n    } catch (e) {\n      iframe = document.createElement('iframe');\n      iframe.name = self.iframeId;\n      iframe.src = 'javascript:0';\n    }\n\n    iframe.id = self.iframeId;\n\n    self.form.appendChild(iframe);\n    self.iframe = iframe;\n  }\n\n  initIframe();\n\n  // escape \\n to prevent it from being converted into \\r\\n by some UAs\n  // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side\n  data = data.replace(rEscapedNewline, '\\\\\\n');\n  this.area.value = data.replace(rNewline, '\\\\n');\n\n  try {\n    this.form.submit();\n  } catch (e) {}\n\n  if (this.iframe.attachEvent) {\n    this.iframe.onreadystatechange = function () {\n      if (self.iframe.readyState === 'complete') {\n        complete();\n      }\n    };\n  } else {\n    this.iframe.onload = complete;\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/polling-jsonp.js\n// module id = 32\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar Transport = require('../transport');\nvar parser = require('engine.io-parser');\nvar parseqs = require('parseqs');\nvar inherit = require('component-inherit');\nvar yeast = require('yeast');\nvar debug = require('debug')('engine.io-client:websocket');\nvar BrowserWebSocket, NodeWebSocket;\nif (typeof self === 'undefined') {\n  try {\n    NodeWebSocket = require('ws');\n  } catch (e) { }\n} else {\n  BrowserWebSocket = self.WebSocket || self.MozWebSocket;\n}\n\n/**\n * Get either the `WebSocket` or `MozWebSocket` globals\n * in the browser or try to resolve WebSocket-compatible\n * interface exposed by `ws` for Node-like environment.\n */\n\nvar WebSocket = BrowserWebSocket || NodeWebSocket;\n\n/**\n * Module exports.\n */\n\nmodule.exports = WS;\n\n/**\n * WebSocket transport constructor.\n *\n * @api {Object} connection options\n * @api public\n */\n\nfunction WS (opts) {\n  var forceBase64 = (opts && opts.forceBase64);\n  if (forceBase64) {\n    this.supportsBinary = false;\n  }\n  this.perMessageDeflate = opts.perMessageDeflate;\n  this.usingBrowserWebSocket = BrowserWebSocket && !opts.forceNode;\n  this.protocols = opts.protocols;\n  if (!this.usingBrowserWebSocket) {\n    WebSocket = NodeWebSocket;\n  }\n  Transport.call(this, opts);\n}\n\n/**\n * Inherits from Transport.\n */\n\ninherit(WS, Transport);\n\n/**\n * Transport name.\n *\n * @api public\n */\n\nWS.prototype.name = 'websocket';\n\n/*\n * WebSockets support binary\n */\n\nWS.prototype.supportsBinary = true;\n\n/**\n * Opens socket.\n *\n * @api private\n */\n\nWS.prototype.doOpen = function () {\n  if (!this.check()) {\n    // let probe timeout\n    return;\n  }\n\n  var uri = this.uri();\n  var protocols = this.protocols;\n  var opts = {\n    agent: this.agent,\n    perMessageDeflate: this.perMessageDeflate\n  };\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n  if (this.extraHeaders) {\n    opts.headers = this.extraHeaders;\n  }\n  if (this.localAddress) {\n    opts.localAddress = this.localAddress;\n  }\n\n  try {\n    this.ws = this.usingBrowserWebSocket && !this.isReactNative ? (protocols ? new WebSocket(uri, protocols) : new WebSocket(uri)) : new WebSocket(uri, protocols, opts);\n  } catch (err) {\n    return this.emit('error', err);\n  }\n\n  if (this.ws.binaryType === undefined) {\n    this.supportsBinary = false;\n  }\n\n  if (this.ws.supports && this.ws.supports.binary) {\n    this.supportsBinary = true;\n    this.ws.binaryType = 'nodebuffer';\n  } else {\n    this.ws.binaryType = 'arraybuffer';\n  }\n\n  this.addEventListeners();\n};\n\n/**\n * Adds event listeners to the socket\n *\n * @api private\n */\n\nWS.prototype.addEventListeners = function () {\n  var self = this;\n\n  this.ws.onopen = function () {\n    self.onOpen();\n  };\n  this.ws.onclose = function () {\n    self.onClose();\n  };\n  this.ws.onmessage = function (ev) {\n    self.onData(ev.data);\n  };\n  this.ws.onerror = function (e) {\n    self.onError('websocket error', e);\n  };\n};\n\n/**\n * Writes data to socket.\n *\n * @param {Array} array of packets.\n * @api private\n */\n\nWS.prototype.write = function (packets) {\n  var self = this;\n  this.writable = false;\n\n  // encodePacket efficient as it uses WS framing\n  // no need for encodePayload\n  var total = packets.length;\n  for (var i = 0, l = total; i < l; i++) {\n    (function (packet) {\n      parser.encodePacket(packet, self.supportsBinary, function (data) {\n        if (!self.usingBrowserWebSocket) {\n          // always create a new object (GH-437)\n          var opts = {};\n          if (packet.options) {\n            opts.compress = packet.options.compress;\n          }\n\n          if (self.perMessageDeflate) {\n            var len = 'string' === typeof data ? Buffer.byteLength(data) : data.length;\n            if (len < self.perMessageDeflate.threshold) {\n              opts.compress = false;\n            }\n          }\n        }\n\n        // Sometimes the websocket has already been closed but the browser didn't\n        // have a chance of informing us about it yet, in that case send will\n        // throw an error\n        try {\n          if (self.usingBrowserWebSocket) {\n            // TypeError is thrown when passing the second argument on Safari\n            self.ws.send(data);\n          } else {\n            self.ws.send(data, opts);\n          }\n        } catch (e) {\n          debug('websocket closed before onclose event');\n        }\n\n        --total || done();\n      });\n    })(packets[i]);\n  }\n\n  function done () {\n    self.emit('flush');\n\n    // fake drain\n    // defer to next tick to allow Socket to clear writeBuffer\n    setTimeout(function () {\n      self.writable = true;\n      self.emit('drain');\n    }, 0);\n  }\n};\n\n/**\n * Called upon close\n *\n * @api private\n */\n\nWS.prototype.onClose = function () {\n  Transport.prototype.onClose.call(this);\n};\n\n/**\n * Closes socket.\n *\n * @api private\n */\n\nWS.prototype.doClose = function () {\n  if (typeof this.ws !== 'undefined') {\n    this.ws.close();\n  }\n};\n\n/**\n * Generates uri for connection.\n *\n * @api private\n */\n\nWS.prototype.uri = function () {\n  var query = this.query || {};\n  var schema = this.secure ? 'wss' : 'ws';\n  var port = '';\n\n  // avoid port if default for schema\n  if (this.port && (('wss' === schema && Number(this.port) !== 443) ||\n    ('ws' === schema && Number(this.port) !== 80))) {\n    port = ':' + this.port;\n  }\n\n  // append timestamp to URI\n  if (this.timestampRequests) {\n    query[this.timestampParam] = yeast();\n  }\n\n  // communicate binary support capabilities\n  if (!this.supportsBinary) {\n    query.b64 = 1;\n  }\n\n  query = parseqs.encode(query);\n\n  // prepend ? to query\n  if (query.length) {\n    query = '?' + query;\n  }\n\n  var ipv6 = this.hostname.indexOf(':') !== -1;\n  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;\n};\n\n/**\n * Feature detection for WebSocket.\n *\n * @return {Boolean} whether this transport is available.\n * @api public\n */\n\nWS.prototype.check = function () {\n  return !!WebSocket && !('__initialize' in WebSocket && this.name === WS.prototype.name);\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/websocket.js\n// module id = 33\n// module chunks = 0","\nvar indexOf = [].indexOf;\n\nmodule.exports = function(arr, obj){\n  if (indexOf) return arr.indexOf(obj);\n  for (var i = 0; i < arr.length; ++i) {\n    if (arr[i] === obj) return i;\n  }\n  return -1;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/indexof/index.js\n// module id = 35\n// module chunks = 0","\n/**\n * Module dependencies.\n */\n\nvar parser = require('socket.io-parser');\nvar Emitter = require('component-emitter');\nvar toArray = require('to-array');\nvar on = require('./on');\nvar bind = require('component-bind');\nvar debug = require('debug')('socket.io-client:socket');\nvar parseqs = require('parseqs');\nvar hasBin = require('has-binary2');\n\n/**\n * Module exports.\n */\n\nmodule.exports = exports = Socket;\n\n/**\n * Internal events (blacklisted).\n * These events can't be emitted by the user.\n *\n * @api private\n */\n\nvar events = {\n  connect: 1,\n  connect_error: 1,\n  connect_timeout: 1,\n  connecting: 1,\n  disconnect: 1,\n  error: 1,\n  reconnect: 1,\n  reconnect_attempt: 1,\n  reconnect_failed: 1,\n  reconnect_error: 1,\n  reconnecting: 1,\n  ping: 1,\n  pong: 1\n};\n\n/**\n * Shortcut to `Emitter#emit`.\n */\n\nvar emit = Emitter.prototype.emit;\n\n/**\n * `Socket` constructor.\n *\n * @api public\n */\n\nfunction Socket (io, nsp, opts) {\n  this.io = io;\n  this.nsp = nsp;\n  this.json = this; // compat\n  this.ids = 0;\n  this.acks = {};\n  this.receiveBuffer = [];\n  this.sendBuffer = [];\n  this.connected = false;\n  this.disconnected = true;\n  this.flags = {};\n  if (opts && opts.query) {\n    this.query = opts.query;\n  }\n  if (this.io.autoConnect) this.open();\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Socket.prototype);\n\n/**\n * Subscribe to open, close and packet events\n *\n * @api private\n */\n\nSocket.prototype.subEvents = function () {\n  if (this.subs) return;\n\n  var io = this.io;\n  this.subs = [\n    on(io, 'open', bind(this, 'onopen')),\n    on(io, 'packet', bind(this, 'onpacket')),\n    on(io, 'close', bind(this, 'onclose'))\n  ];\n};\n\n/**\n * \"Opens\" the socket.\n *\n * @api public\n */\n\nSocket.prototype.open =\nSocket.prototype.connect = function () {\n  if (this.connected) return this;\n\n  this.subEvents();\n  this.io.open(); // ensure open\n  if ('open' === this.io.readyState) this.onopen();\n  this.emit('connecting');\n  return this;\n};\n\n/**\n * Sends a `message` event.\n *\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.send = function () {\n  var args = toArray(arguments);\n  args.unshift('message');\n  this.emit.apply(this, args);\n  return this;\n};\n\n/**\n * Override `emit`.\n * If the event is in `events`, it's emitted normally.\n *\n * @param {String} event name\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.emit = function (ev) {\n  if (events.hasOwnProperty(ev)) {\n    emit.apply(this, arguments);\n    return this;\n  }\n\n  var args = toArray(arguments);\n  var packet = {\n    type: (this.flags.binary !== undefined ? this.flags.binary : hasBin(args)) ? parser.BINARY_EVENT : parser.EVENT,\n    data: args\n  };\n\n  packet.options = {};\n  packet.options.compress = !this.flags || false !== this.flags.compress;\n\n  // event ack callback\n  if ('function' === typeof args[args.length - 1]) {\n    debug('emitting packet with ack id %d', this.ids);\n    this.acks[this.ids] = args.pop();\n    packet.id = this.ids++;\n  }\n\n  if (this.connected) {\n    this.packet(packet);\n  } else {\n    this.sendBuffer.push(packet);\n  }\n\n  this.flags = {};\n\n  return this;\n};\n\n/**\n * Sends a packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.packet = function (packet) {\n  packet.nsp = this.nsp;\n  this.io.packet(packet);\n};\n\n/**\n * Called upon engine `open`.\n *\n * @api private\n */\n\nSocket.prototype.onopen = function () {\n  debug('transport is open - connecting');\n\n  // write connect packet if necessary\n  if ('/' !== this.nsp) {\n    if (this.query) {\n      var query = typeof this.query === 'object' ? parseqs.encode(this.query) : this.query;\n      debug('sending connect packet with query %s', query);\n      this.packet({type: parser.CONNECT, query: query});\n    } else {\n      this.packet({type: parser.CONNECT});\n    }\n  }\n};\n\n/**\n * Called upon engine `close`.\n *\n * @param {String} reason\n * @api private\n */\n\nSocket.prototype.onclose = function (reason) {\n  debug('close (%s)', reason);\n  this.connected = false;\n  this.disconnected = true;\n  delete this.id;\n  this.emit('disconnect', reason);\n};\n\n/**\n * Called with socket packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onpacket = function (packet) {\n  var sameNamespace = packet.nsp === this.nsp;\n  var rootNamespaceError = packet.type === parser.ERROR && packet.nsp === '/';\n\n  if (!sameNamespace && !rootNamespaceError) return;\n\n  switch (packet.type) {\n    case parser.CONNECT:\n      this.onconnect();\n      break;\n\n    case parser.EVENT:\n      this.onevent(packet);\n      break;\n\n    case parser.BINARY_EVENT:\n      this.onevent(packet);\n      break;\n\n    case parser.ACK:\n      this.onack(packet);\n      break;\n\n    case parser.BINARY_ACK:\n      this.onack(packet);\n      break;\n\n    case parser.DISCONNECT:\n      this.ondisconnect();\n      break;\n\n    case parser.ERROR:\n      this.emit('error', packet.data);\n      break;\n  }\n};\n\n/**\n * Called upon a server event.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onevent = function (packet) {\n  var args = packet.data || [];\n  debug('emitting event %j', args);\n\n  if (null != packet.id) {\n    debug('attaching ack callback to event');\n    args.push(this.ack(packet.id));\n  }\n\n  if (this.connected) {\n    emit.apply(this, args);\n  } else {\n    this.receiveBuffer.push(args);\n  }\n};\n\n/**\n * Produces an ack callback to emit with an event.\n *\n * @api private\n */\n\nSocket.prototype.ack = function (id) {\n  var self = this;\n  var sent = false;\n  return function () {\n    // prevent double callbacks\n    if (sent) return;\n    sent = true;\n    var args = toArray(arguments);\n    debug('sending ack %j', args);\n\n    self.packet({\n      type: hasBin(args) ? parser.BINARY_ACK : parser.ACK,\n      id: id,\n      data: args\n    });\n  };\n};\n\n/**\n * Called upon a server acknowlegement.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onack = function (packet) {\n  var ack = this.acks[packet.id];\n  if ('function' === typeof ack) {\n    debug('calling ack %s with %j', packet.id, packet.data);\n    ack.apply(this, packet.data);\n    delete this.acks[packet.id];\n  } else {\n    debug('bad ack %s', packet.id);\n  }\n};\n\n/**\n * Called upon server connect.\n *\n * @api private\n */\n\nSocket.prototype.onconnect = function () {\n  this.connected = true;\n  this.disconnected = false;\n  this.emit('connect');\n  this.emitBuffered();\n};\n\n/**\n * Emit buffered events (received and emitted).\n *\n * @api private\n */\n\nSocket.prototype.emitBuffered = function () {\n  var i;\n  for (i = 0; i < this.receiveBuffer.length; i++) {\n    emit.apply(this, this.receiveBuffer[i]);\n  }\n  this.receiveBuffer = [];\n\n  for (i = 0; i < this.sendBuffer.length; i++) {\n    this.packet(this.sendBuffer[i]);\n  }\n  this.sendBuffer = [];\n};\n\n/**\n * Called upon server disconnect.\n *\n * @api private\n */\n\nSocket.prototype.ondisconnect = function () {\n  debug('server disconnect (%s)', this.nsp);\n  this.destroy();\n  this.onclose('io server disconnect');\n};\n\n/**\n * Called upon forced client/server side disconnections,\n * this method ensures the manager stops tracking us and\n * that reconnections don't get triggered for this.\n *\n * @api private.\n */\n\nSocket.prototype.destroy = function () {\n  if (this.subs) {\n    // clean subscriptions to avoid reconnections\n    for (var i = 0; i < this.subs.length; i++) {\n      this.subs[i].destroy();\n    }\n    this.subs = null;\n  }\n\n  this.io.destroy(this);\n};\n\n/**\n * Disconnects the socket manually.\n *\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.close =\nSocket.prototype.disconnect = function () {\n  if (this.connected) {\n    debug('performing disconnect (%s)', this.nsp);\n    this.packet({ type: parser.DISCONNECT });\n  }\n\n  // remove socket from pool\n  this.destroy();\n\n  if (this.connected) {\n    // fire events\n    this.onclose('io client disconnect');\n  }\n  return this;\n};\n\n/**\n * Sets the compress flag.\n *\n * @param {Boolean} if `true`, compresses the sending data\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.compress = function (compress) {\n  this.flags.compress = compress;\n  return this;\n};\n\n/**\n * Sets the binary flag\n *\n * @param {Boolean} whether the emitted data contains binary\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.binary = function (binary) {\n  this.flags.binary = binary;\n  return this;\n};\n\n\n\n// WEBPACK FOOTER //\n// ./lib/socket.js","module.exports = toArray\n\nfunction toArray(list, index) {\n    var array = []\n\n    index = index || 0\n\n    for (var i = index || 0; i < list.length; i++) {\n        array[i - index] = list[i]\n    }\n\n    return array\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/to-array/index.js\n// module id = 37\n// module chunks = 0","\n/**\n * Module exports.\n */\n\nmodule.exports = on;\n\n/**\n * Helper for subscriptions.\n *\n * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`\n * @param {String} event name\n * @param {Function} callback\n * @api public\n */\n\nfunction on (obj, ev, fn) {\n  obj.on(ev, fn);\n  return {\n    destroy: function () {\n      obj.removeListener(ev, fn);\n    }\n  };\n}\n\n\n\n// WEBPACK FOOTER //\n// ./lib/on.js","/**\n * Slice reference.\n */\n\nvar slice = [].slice;\n\n/**\n * Bind `obj` to `fn`.\n *\n * @param {Object} obj\n * @param {Function|String} fn or string\n * @return {Function}\n * @api public\n */\n\nmodule.exports = function(obj, fn){\n  if ('string' == typeof fn) fn = obj[fn];\n  if ('function' != typeof fn) throw new Error('bind() requires a function');\n  var args = slice.call(arguments, 2);\n  return function(){\n    return fn.apply(obj, args.concat(slice.call(arguments)));\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/component-bind/index.js\n// module id = 39\n// module chunks = 0","\n/**\n * Expose `Backoff`.\n */\n\nmodule.exports = Backoff;\n\n/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\n\nfunction Backoff(opts) {\n  opts = opts || {};\n  this.ms = opts.min || 100;\n  this.max = opts.max || 10000;\n  this.factor = opts.factor || 2;\n  this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n  this.attempts = 0;\n}\n\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\n\nBackoff.prototype.duration = function(){\n  var ms = this.ms * Math.pow(this.factor, this.attempts++);\n  if (this.jitter) {\n    var rand =  Math.random();\n    var deviation = Math.floor(rand * this.jitter * ms);\n    ms = (Math.floor(rand * 10) & 1) == 0  ? ms - deviation : ms + deviation;\n  }\n  return Math.min(ms, this.max) | 0;\n};\n\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\n\nBackoff.prototype.reset = function(){\n  this.attempts = 0;\n};\n\n/**\n * Set the minimum duration\n *\n * @api public\n */\n\nBackoff.prototype.setMin = function(min){\n  this.ms = min;\n};\n\n/**\n * Set the maximum duration\n *\n * @api public\n */\n\nBackoff.prototype.setMax = function(max){\n  this.max = max;\n};\n\n/**\n * Set the jitter\n *\n * @api public\n */\n\nBackoff.prototype.setJitter = function(jitter){\n  this.jitter = jitter;\n};\n\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/backo2/index.js\n// module id = 40\n// module chunks = 0"],"sourceRoot":""}
\ No newline at end of file
diff --git a/helloworld/node_modules/socket.io-client/dist/socket.io.slim.dev.js b/helloworld/node_modules/socket.io-client/dist/socket.io.slim.dev.js
new file mode 100755
index 0000000..29fb234
--- /dev/null
+++ b/helloworld/node_modules/socket.io-client/dist/socket.io.slim.dev.js
@@ -0,0 +1,5837 @@
+/*!
+ * Socket.IO v2.2.0
+ * (c) 2014-2018 Guillermo Rauch
+ * Released under the MIT License.
+ */
+(function webpackUniversalModuleDefinition(root, factory) {
+	if(typeof exports === 'object' && typeof module === 'object')
+		module.exports = factory();
+	else if(typeof define === 'function' && define.amd)
+		define([], factory);
+	else if(typeof exports === 'object')
+		exports["io"] = factory();
+	else
+		root["io"] = factory();
+})(this, function() {
+return /******/ (function(modules) { // webpackBootstrap
+/******/ 	// The module cache
+/******/ 	var installedModules = {};
+/******/
+/******/ 	// The require function
+/******/ 	function __webpack_require__(moduleId) {
+/******/
+/******/ 		// Check if module is in cache
+/******/ 		if(installedModules[moduleId])
+/******/ 			return installedModules[moduleId].exports;
+/******/
+/******/ 		// Create a new module (and put it into the cache)
+/******/ 		var module = installedModules[moduleId] = {
+/******/ 			exports: {},
+/******/ 			id: moduleId,
+/******/ 			loaded: false
+/******/ 		};
+/******/
+/******/ 		// Execute the module function
+/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+/******/
+/******/ 		// Flag the module as loaded
+/******/ 		module.loaded = true;
+/******/
+/******/ 		// Return the exports of the module
+/******/ 		return module.exports;
+/******/ 	}
+/******/
+/******/
+/******/ 	// expose the modules object (__webpack_modules__)
+/******/ 	__webpack_require__.m = modules;
+/******/
+/******/ 	// expose the module cache
+/******/ 	__webpack_require__.c = installedModules;
+/******/
+/******/ 	// __webpack_public_path__
+/******/ 	__webpack_require__.p = "";
+/******/
+/******/ 	// Load entry module and return exports
+/******/ 	return __webpack_require__(0);
+/******/ })
+/************************************************************************/
+/******/ ([
+/* 0 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+	
+	/**
+	 * Module dependencies.
+	 */
+	
+	var url = __webpack_require__(1);
+	var parser = __webpack_require__(4);
+	var Manager = __webpack_require__(9);
+	var debug = __webpack_require__(3)('socket.io-client');
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = exports = lookup;
+	
+	/**
+	 * Managers cache.
+	 */
+	
+	var cache = exports.managers = {};
+	
+	/**
+	 * Looks up an existing `Manager` for multiplexing.
+	 * If the user summons:
+	 *
+	 *   `io('http://localhost/a');`
+	 *   `io('http://localhost/b');`
+	 *
+	 * We reuse the existing instance based on same scheme/port/host,
+	 * and we initialize sockets for each namespace.
+	 *
+	 * @api public
+	 */
+	
+	function lookup(uri, opts) {
+	  if ((typeof uri === 'undefined' ? 'undefined' : _typeof(uri)) === 'object') {
+	    opts = uri;
+	    uri = undefined;
+	  }
+	
+	  opts = opts || {};
+	
+	  var parsed = url(uri);
+	  var source = parsed.source;
+	  var id = parsed.id;
+	  var path = parsed.path;
+	  var sameNamespace = cache[id] && path in cache[id].nsps;
+	  var newConnection = opts.forceNew || opts['force new connection'] || false === opts.multiplex || sameNamespace;
+	
+	  var io;
+	
+	  if (newConnection) {
+	
+	    io = Manager(source, opts);
+	  } else {
+	    if (!cache[id]) {
+	
+	      cache[id] = Manager(source, opts);
+	    }
+	    io = cache[id];
+	  }
+	  if (parsed.query && !opts.query) {
+	    opts.query = parsed.query;
+	  }
+	  return io.socket(parsed.path, opts);
+	}
+	
+	/**
+	 * Protocol version.
+	 *
+	 * @api public
+	 */
+	
+	exports.protocol = parser.protocol;
+	
+	/**
+	 * `connect`.
+	 *
+	 * @param {String} uri
+	 * @api public
+	 */
+	
+	exports.connect = lookup;
+	
+	/**
+	 * Expose constructors for standalone build.
+	 *
+	 * @api public
+	 */
+	
+	exports.Manager = __webpack_require__(9);
+	exports.Socket = __webpack_require__(33);
+
+/***/ }),
+/* 1 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	/**
+	 * Module dependencies.
+	 */
+	
+	var parseuri = __webpack_require__(2);
+	var debug = __webpack_require__(3)('socket.io-client:url');
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = url;
+	
+	/**
+	 * URL parser.
+	 *
+	 * @param {String} url
+	 * @param {Object} An object meant to mimic window.location.
+	 *                 Defaults to window.location.
+	 * @api public
+	 */
+	
+	function url(uri, loc) {
+	  var obj = uri;
+	
+	  // default to window.location
+	  loc = loc || typeof location !== 'undefined' && location;
+	  if (null == uri) uri = loc.protocol + '//' + loc.host;
+	
+	  // relative path support
+	  if ('string' === typeof uri) {
+	    if ('/' === uri.charAt(0)) {
+	      if ('/' === uri.charAt(1)) {
+	        uri = loc.protocol + uri;
+	      } else {
+	        uri = loc.host + uri;
+	      }
+	    }
+	
+	    if (!/^(https?|wss?):\/\//.test(uri)) {
+	
+	      if ('undefined' !== typeof loc) {
+	        uri = loc.protocol + '//' + uri;
+	      } else {
+	        uri = 'https://' + uri;
+	      }
+	    }
+	
+	    // parse
+	
+	    obj = parseuri(uri);
+	  }
+	
+	  // make sure we treat `localhost:80` and `localhost` equally
+	  if (!obj.port) {
+	    if (/^(http|ws)$/.test(obj.protocol)) {
+	      obj.port = '80';
+	    } else if (/^(http|ws)s$/.test(obj.protocol)) {
+	      obj.port = '443';
+	    }
+	  }
+	
+	  obj.path = obj.path || '/';
+	
+	  var ipv6 = obj.host.indexOf(':') !== -1;
+	  var host = ipv6 ? '[' + obj.host + ']' : obj.host;
+	
+	  // define unique id
+	  obj.id = obj.protocol + '://' + host + ':' + obj.port;
+	  // define href
+	  obj.href = obj.protocol + '://' + host + (loc && loc.port === obj.port ? '' : ':' + obj.port);
+	
+	  return obj;
+	}
+
+/***/ }),
+/* 2 */
+/***/ (function(module, exports) {
+
+	/**
+	 * Parses an URI
+	 *
+	 * @author Steven Levithan <stevenlevithan.com> (MIT license)
+	 * @api private
+	 */
+	
+	var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
+	
+	var parts = [
+	    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'
+	];
+	
+	module.exports = function parseuri(str) {
+	    var src = str,
+	        b = str.indexOf('['),
+	        e = str.indexOf(']');
+	
+	    if (b != -1 && e != -1) {
+	        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);
+	    }
+	
+	    var m = re.exec(str || ''),
+	        uri = {},
+	        i = 14;
+	
+	    while (i--) {
+	        uri[parts[i]] = m[i] || '';
+	    }
+	
+	    if (b != -1 && e != -1) {
+	        uri.source = src;
+	        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');
+	        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');
+	        uri.ipv6uri = true;
+	    }
+	
+	    return uri;
+	};
+
+
+/***/ }),
+/* 3 */
+/***/ (function(module, exports) {
+
+	"use strict";
+	
+	module.exports = function () {
+	  return function () {};
+	};
+
+/***/ }),
+/* 4 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	
+	/**
+	 * Module dependencies.
+	 */
+	
+	var debug = __webpack_require__(3)('socket.io-parser');
+	var Emitter = __webpack_require__(5);
+	var binary = __webpack_require__(6);
+	var isArray = __webpack_require__(7);
+	var isBuf = __webpack_require__(8);
+	
+	/**
+	 * Protocol version.
+	 *
+	 * @api public
+	 */
+	
+	exports.protocol = 4;
+	
+	/**
+	 * Packet types.
+	 *
+	 * @api public
+	 */
+	
+	exports.types = [
+	  'CONNECT',
+	  'DISCONNECT',
+	  'EVENT',
+	  'ACK',
+	  'ERROR',
+	  'BINARY_EVENT',
+	  'BINARY_ACK'
+	];
+	
+	/**
+	 * Packet type `connect`.
+	 *
+	 * @api public
+	 */
+	
+	exports.CONNECT = 0;
+	
+	/**
+	 * Packet type `disconnect`.
+	 *
+	 * @api public
+	 */
+	
+	exports.DISCONNECT = 1;
+	
+	/**
+	 * Packet type `event`.
+	 *
+	 * @api public
+	 */
+	
+	exports.EVENT = 2;
+	
+	/**
+	 * Packet type `ack`.
+	 *
+	 * @api public
+	 */
+	
+	exports.ACK = 3;
+	
+	/**
+	 * Packet type `error`.
+	 *
+	 * @api public
+	 */
+	
+	exports.ERROR = 4;
+	
+	/**
+	 * Packet type 'binary event'
+	 *
+	 * @api public
+	 */
+	
+	exports.BINARY_EVENT = 5;
+	
+	/**
+	 * Packet type `binary ack`. For acks with binary arguments.
+	 *
+	 * @api public
+	 */
+	
+	exports.BINARY_ACK = 6;
+	
+	/**
+	 * Encoder constructor.
+	 *
+	 * @api public
+	 */
+	
+	exports.Encoder = Encoder;
+	
+	/**
+	 * Decoder constructor.
+	 *
+	 * @api public
+	 */
+	
+	exports.Decoder = Decoder;
+	
+	/**
+	 * A socket.io Encoder instance
+	 *
+	 * @api public
+	 */
+	
+	function Encoder() {}
+	
+	var ERROR_PACKET = exports.ERROR + '"encode error"';
+	
+	/**
+	 * Encode a packet as a single string if non-binary, or as a
+	 * buffer sequence, depending on packet type.
+	 *
+	 * @param {Object} obj - packet object
+	 * @param {Function} callback - function to handle encodings (likely engine.write)
+	 * @return Calls callback with Array of encodings
+	 * @api public
+	 */
+	
+	Encoder.prototype.encode = function(obj, callback){
+	
+	
+	  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {
+	    encodeAsBinary(obj, callback);
+	  } else {
+	    var encoding = encodeAsString(obj);
+	    callback([encoding]);
+	  }
+	};
+	
+	/**
+	 * Encode packet as string.
+	 *
+	 * @param {Object} packet
+	 * @return {String} encoded
+	 * @api private
+	 */
+	
+	function encodeAsString(obj) {
+	
+	  // first is type
+	  var str = '' + obj.type;
+	
+	  // attachments if we have them
+	  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {
+	    str += obj.attachments + '-';
+	  }
+	
+	  // if we have a namespace other than `/`
+	  // we append it followed by a comma `,`
+	  if (obj.nsp && '/' !== obj.nsp) {
+	    str += obj.nsp + ',';
+	  }
+	
+	  // immediately followed by the id
+	  if (null != obj.id) {
+	    str += obj.id;
+	  }
+	
+	  // json data
+	  if (null != obj.data) {
+	    var payload = tryStringify(obj.data);
+	    if (payload !== false) {
+	      str += payload;
+	    } else {
+	      return ERROR_PACKET;
+	    }
+	  }
+	
+	
+	  return str;
+	}
+	
+	function tryStringify(str) {
+	  try {
+	    return JSON.stringify(str);
+	  } catch(e){
+	    return false;
+	  }
+	}
+	
+	/**
+	 * Encode packet as 'buffer sequence' by removing blobs, and
+	 * deconstructing packet into object with placeholders and
+	 * a list of buffers.
+	 *
+	 * @param {Object} packet
+	 * @return {Buffer} encoded
+	 * @api private
+	 */
+	
+	function encodeAsBinary(obj, callback) {
+	
+	  function writeEncoding(bloblessData) {
+	    var deconstruction = binary.deconstructPacket(bloblessData);
+	    var pack = encodeAsString(deconstruction.packet);
+	    var buffers = deconstruction.buffers;
+	
+	    buffers.unshift(pack); // add packet info to beginning of data list
+	    callback(buffers); // write all the buffers
+	  }
+	
+	  binary.removeBlobs(obj, writeEncoding);
+	}
+	
+	/**
+	 * A socket.io Decoder instance
+	 *
+	 * @return {Object} decoder
+	 * @api public
+	 */
+	
+	function Decoder() {
+	  this.reconstructor = null;
+	}
+	
+	/**
+	 * Mix in `Emitter` with Decoder.
+	 */
+	
+	Emitter(Decoder.prototype);
+	
+	/**
+	 * Decodes an encoded packet string into packet JSON.
+	 *
+	 * @param {String} obj - encoded packet
+	 * @return {Object} packet
+	 * @api public
+	 */
+	
+	Decoder.prototype.add = function(obj) {
+	  var packet;
+	  if (typeof obj === 'string') {
+	    packet = decodeString(obj);
+	    if (exports.BINARY_EVENT === packet.type || exports.BINARY_ACK === packet.type) { // binary packet's json
+	      this.reconstructor = new BinaryReconstructor(packet);
+	
+	      // no attachments, labeled binary but no binary data to follow
+	      if (this.reconstructor.reconPack.attachments === 0) {
+	        this.emit('decoded', packet);
+	      }
+	    } else { // non-binary full packet
+	      this.emit('decoded', packet);
+	    }
+	  } else if (isBuf(obj) || obj.base64) { // raw binary data
+	    if (!this.reconstructor) {
+	      throw new Error('got binary data when not reconstructing a packet');
+	    } else {
+	      packet = this.reconstructor.takeBinaryData(obj);
+	      if (packet) { // received final buffer
+	        this.reconstructor = null;
+	        this.emit('decoded', packet);
+	      }
+	    }
+	  } else {
+	    throw new Error('Unknown type: ' + obj);
+	  }
+	};
+	
+	/**
+	 * Decode a packet String (JSON data)
+	 *
+	 * @param {String} str
+	 * @return {Object} packet
+	 * @api private
+	 */
+	
+	function decodeString(str) {
+	  var i = 0;
+	  // look up type
+	  var p = {
+	    type: Number(str.charAt(0))
+	  };
+	
+	  if (null == exports.types[p.type]) {
+	    return error('unknown packet type ' + p.type);
+	  }
+	
+	  // look up attachments if type binary
+	  if (exports.BINARY_EVENT === p.type || exports.BINARY_ACK === p.type) {
+	    var buf = '';
+	    while (str.charAt(++i) !== '-') {
+	      buf += str.charAt(i);
+	      if (i == str.length) break;
+	    }
+	    if (buf != Number(buf) || str.charAt(i) !== '-') {
+	      throw new Error('Illegal attachments');
+	    }
+	    p.attachments = Number(buf);
+	  }
+	
+	  // look up namespace (if any)
+	  if ('/' === str.charAt(i + 1)) {
+	    p.nsp = '';
+	    while (++i) {
+	      var c = str.charAt(i);
+	      if (',' === c) break;
+	      p.nsp += c;
+	      if (i === str.length) break;
+	    }
+	  } else {
+	    p.nsp = '/';
+	  }
+	
+	  // look up id
+	  var next = str.charAt(i + 1);
+	  if ('' !== next && Number(next) == next) {
+	    p.id = '';
+	    while (++i) {
+	      var c = str.charAt(i);
+	      if (null == c || Number(c) != c) {
+	        --i;
+	        break;
+	      }
+	      p.id += str.charAt(i);
+	      if (i === str.length) break;
+	    }
+	    p.id = Number(p.id);
+	  }
+	
+	  // look up json data
+	  if (str.charAt(++i)) {
+	    var payload = tryParse(str.substr(i));
+	    var isPayloadValid = payload !== false && (p.type === exports.ERROR || isArray(payload));
+	    if (isPayloadValid) {
+	      p.data = payload;
+	    } else {
+	      return error('invalid payload');
+	    }
+	  }
+	
+	
+	  return p;
+	}
+	
+	function tryParse(str) {
+	  try {
+	    return JSON.parse(str);
+	  } catch(e){
+	    return false;
+	  }
+	}
+	
+	/**
+	 * Deallocates a parser's resources
+	 *
+	 * @api public
+	 */
+	
+	Decoder.prototype.destroy = function() {
+	  if (this.reconstructor) {
+	    this.reconstructor.finishedReconstruction();
+	  }
+	};
+	
+	/**
+	 * A manager of a binary event's 'buffer sequence'. Should
+	 * be constructed whenever a packet of type BINARY_EVENT is
+	 * decoded.
+	 *
+	 * @param {Object} packet
+	 * @return {BinaryReconstructor} initialized reconstructor
+	 * @api private
+	 */
+	
+	function BinaryReconstructor(packet) {
+	  this.reconPack = packet;
+	  this.buffers = [];
+	}
+	
+	/**
+	 * Method to be called when binary data received from connection
+	 * after a BINARY_EVENT packet.
+	 *
+	 * @param {Buffer | ArrayBuffer} binData - the raw binary data received
+	 * @return {null | Object} returns null if more binary data is expected or
+	 *   a reconstructed packet object if all buffers have been received.
+	 * @api private
+	 */
+	
+	BinaryReconstructor.prototype.takeBinaryData = function(binData) {
+	  this.buffers.push(binData);
+	  if (this.buffers.length === this.reconPack.attachments) { // done with buffer list
+	    var packet = binary.reconstructPacket(this.reconPack, this.buffers);
+	    this.finishedReconstruction();
+	    return packet;
+	  }
+	  return null;
+	};
+	
+	/**
+	 * Cleans up binary packet reconstruction variables.
+	 *
+	 * @api private
+	 */
+	
+	BinaryReconstructor.prototype.finishedReconstruction = function() {
+	  this.reconPack = null;
+	  this.buffers = [];
+	};
+	
+	function error(msg) {
+	  return {
+	    type: exports.ERROR,
+	    data: 'parser error: ' + msg
+	  };
+	}
+
+
+/***/ }),
+/* 5 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	
+	/**
+	 * Expose `Emitter`.
+	 */
+	
+	if (true) {
+	  module.exports = Emitter;
+	}
+	
+	/**
+	 * Initialize a new `Emitter`.
+	 *
+	 * @api public
+	 */
+	
+	function Emitter(obj) {
+	  if (obj) return mixin(obj);
+	};
+	
+	/**
+	 * Mixin the emitter properties.
+	 *
+	 * @param {Object} obj
+	 * @return {Object}
+	 * @api private
+	 */
+	
+	function mixin(obj) {
+	  for (var key in Emitter.prototype) {
+	    obj[key] = Emitter.prototype[key];
+	  }
+	  return obj;
+	}
+	
+	/**
+	 * Listen on the given `event` with `fn`.
+	 *
+	 * @param {String} event
+	 * @param {Function} fn
+	 * @return {Emitter}
+	 * @api public
+	 */
+	
+	Emitter.prototype.on =
+	Emitter.prototype.addEventListener = function(event, fn){
+	  this._callbacks = this._callbacks || {};
+	  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])
+	    .push(fn);
+	  return this;
+	};
+	
+	/**
+	 * Adds an `event` listener that will be invoked a single
+	 * time then automatically removed.
+	 *
+	 * @param {String} event
+	 * @param {Function} fn
+	 * @return {Emitter}
+	 * @api public
+	 */
+	
+	Emitter.prototype.once = function(event, fn){
+	  function on() {
+	    this.off(event, on);
+	    fn.apply(this, arguments);
+	  }
+	
+	  on.fn = fn;
+	  this.on(event, on);
+	  return this;
+	};
+	
+	/**
+	 * Remove the given callback for `event` or all
+	 * registered callbacks.
+	 *
+	 * @param {String} event
+	 * @param {Function} fn
+	 * @return {Emitter}
+	 * @api public
+	 */
+	
+	Emitter.prototype.off =
+	Emitter.prototype.removeListener =
+	Emitter.prototype.removeAllListeners =
+	Emitter.prototype.removeEventListener = function(event, fn){
+	  this._callbacks = this._callbacks || {};
+	
+	  // all
+	  if (0 == arguments.length) {
+	    this._callbacks = {};
+	    return this;
+	  }
+	
+	  // specific event
+	  var callbacks = this._callbacks['$' + event];
+	  if (!callbacks) return this;
+	
+	  // remove all handlers
+	  if (1 == arguments.length) {
+	    delete this._callbacks['$' + event];
+	    return this;
+	  }
+	
+	  // remove specific handler
+	  var cb;
+	  for (var i = 0; i < callbacks.length; i++) {
+	    cb = callbacks[i];
+	    if (cb === fn || cb.fn === fn) {
+	      callbacks.splice(i, 1);
+	      break;
+	    }
+	  }
+	  return this;
+	};
+	
+	/**
+	 * Emit `event` with the given args.
+	 *
+	 * @param {String} event
+	 * @param {Mixed} ...
+	 * @return {Emitter}
+	 */
+	
+	Emitter.prototype.emit = function(event){
+	  this._callbacks = this._callbacks || {};
+	  var args = [].slice.call(arguments, 1)
+	    , callbacks = this._callbacks['$' + event];
+	
+	  if (callbacks) {
+	    callbacks = callbacks.slice(0);
+	    for (var i = 0, len = callbacks.length; i < len; ++i) {
+	      callbacks[i].apply(this, args);
+	    }
+	  }
+	
+	  return this;
+	};
+	
+	/**
+	 * Return array of callbacks for `event`.
+	 *
+	 * @param {String} event
+	 * @return {Array}
+	 * @api public
+	 */
+	
+	Emitter.prototype.listeners = function(event){
+	  this._callbacks = this._callbacks || {};
+	  return this._callbacks['$' + event] || [];
+	};
+	
+	/**
+	 * Check if this emitter has `event` handlers.
+	 *
+	 * @param {String} event
+	 * @return {Boolean}
+	 * @api public
+	 */
+	
+	Emitter.prototype.hasListeners = function(event){
+	  return !! this.listeners(event).length;
+	};
+
+
+/***/ }),
+/* 6 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/*global Blob,File*/
+	
+	/**
+	 * Module requirements
+	 */
+	
+	var isArray = __webpack_require__(7);
+	var isBuf = __webpack_require__(8);
+	var toString = Object.prototype.toString;
+	var withNativeBlob = typeof Blob === 'function' || (typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]');
+	var withNativeFile = typeof File === 'function' || (typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]');
+	
+	/**
+	 * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder.
+	 * Anything with blobs or files should be fed through removeBlobs before coming
+	 * here.
+	 *
+	 * @param {Object} packet - socket.io event packet
+	 * @return {Object} with deconstructed packet and list of buffers
+	 * @api public
+	 */
+	
+	exports.deconstructPacket = function(packet) {
+	  var buffers = [];
+	  var packetData = packet.data;
+	  var pack = packet;
+	  pack.data = _deconstructPacket(packetData, buffers);
+	  pack.attachments = buffers.length; // number of binary 'attachments'
+	  return {packet: pack, buffers: buffers};
+	};
+	
+	function _deconstructPacket(data, buffers) {
+	  if (!data) return data;
+	
+	  if (isBuf(data)) {
+	    var placeholder = { _placeholder: true, num: buffers.length };
+	    buffers.push(data);
+	    return placeholder;
+	  } else if (isArray(data)) {
+	    var newData = new Array(data.length);
+	    for (var i = 0; i < data.length; i++) {
+	      newData[i] = _deconstructPacket(data[i], buffers);
+	    }
+	    return newData;
+	  } else if (typeof data === 'object' && !(data instanceof Date)) {
+	    var newData = {};
+	    for (var key in data) {
+	      newData[key] = _deconstructPacket(data[key], buffers);
+	    }
+	    return newData;
+	  }
+	  return data;
+	}
+	
+	/**
+	 * Reconstructs a binary packet from its placeholder packet and buffers
+	 *
+	 * @param {Object} packet - event packet with placeholders
+	 * @param {Array} buffers - binary buffers to put in placeholder positions
+	 * @return {Object} reconstructed packet
+	 * @api public
+	 */
+	
+	exports.reconstructPacket = function(packet, buffers) {
+	  packet.data = _reconstructPacket(packet.data, buffers);
+	  packet.attachments = undefined; // no longer useful
+	  return packet;
+	};
+	
+	function _reconstructPacket(data, buffers) {
+	  if (!data) return data;
+	
+	  if (data && data._placeholder) {
+	    return buffers[data.num]; // appropriate buffer (should be natural order anyway)
+	  } else if (isArray(data)) {
+	    for (var i = 0; i < data.length; i++) {
+	      data[i] = _reconstructPacket(data[i], buffers);
+	    }
+	  } else if (typeof data === 'object') {
+	    for (var key in data) {
+	      data[key] = _reconstructPacket(data[key], buffers);
+	    }
+	  }
+	
+	  return data;
+	}
+	
+	/**
+	 * Asynchronously removes Blobs or Files from data via
+	 * FileReader's readAsArrayBuffer method. Used before encoding
+	 * data as msgpack. Calls callback with the blobless data.
+	 *
+	 * @param {Object} data
+	 * @param {Function} callback
+	 * @api private
+	 */
+	
+	exports.removeBlobs = function(data, callback) {
+	  function _removeBlobs(obj, curKey, containingObject) {
+	    if (!obj) return obj;
+	
+	    // convert any blob
+	    if ((withNativeBlob && obj instanceof Blob) ||
+	        (withNativeFile && obj instanceof File)) {
+	      pendingBlobs++;
+	
+	      // async filereader
+	      var fileReader = new FileReader();
+	      fileReader.onload = function() { // this.result == arraybuffer
+	        if (containingObject) {
+	          containingObject[curKey] = this.result;
+	        }
+	        else {
+	          bloblessData = this.result;
+	        }
+	
+	        // if nothing pending its callback time
+	        if(! --pendingBlobs) {
+	          callback(bloblessData);
+	        }
+	      };
+	
+	      fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer
+	    } else if (isArray(obj)) { // handle array
+	      for (var i = 0; i < obj.length; i++) {
+	        _removeBlobs(obj[i], i, obj);
+	      }
+	    } else if (typeof obj === 'object' && !isBuf(obj)) { // and object
+	      for (var key in obj) {
+	        _removeBlobs(obj[key], key, obj);
+	      }
+	    }
+	  }
+	
+	  var pendingBlobs = 0;
+	  var bloblessData = data;
+	  _removeBlobs(bloblessData);
+	  if (!pendingBlobs) {
+	    callback(bloblessData);
+	  }
+	};
+
+
+/***/ }),
+/* 7 */
+/***/ (function(module, exports) {
+
+	var toString = {}.toString;
+	
+	module.exports = Array.isArray || function (arr) {
+	  return toString.call(arr) == '[object Array]';
+	};
+
+
+/***/ }),
+/* 8 */
+/***/ (function(module, exports) {
+
+	
+	module.exports = isBuf;
+	
+	var withNativeBuffer = typeof Buffer === 'function' && typeof Buffer.isBuffer === 'function';
+	var withNativeArrayBuffer = typeof ArrayBuffer === 'function';
+	
+	var isView = function (obj) {
+	  return typeof ArrayBuffer.isView === 'function' ? ArrayBuffer.isView(obj) : (obj.buffer instanceof ArrayBuffer);
+	};
+	
+	/**
+	 * Returns true if obj is a buffer or an arraybuffer.
+	 *
+	 * @api private
+	 */
+	
+	function isBuf(obj) {
+	  return (withNativeBuffer && Buffer.isBuffer(obj)) ||
+	          (withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj)));
+	}
+
+
+/***/ }),
+/* 9 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+	
+	/**
+	 * Module dependencies.
+	 */
+	
+	var eio = __webpack_require__(10);
+	var Socket = __webpack_require__(33);
+	var Emitter = __webpack_require__(5);
+	var parser = __webpack_require__(4);
+	var on = __webpack_require__(35);
+	var bind = __webpack_require__(36);
+	var debug = __webpack_require__(3)('socket.io-client:manager');
+	var indexOf = __webpack_require__(32);
+	var Backoff = __webpack_require__(37);
+	
+	/**
+	 * IE6+ hasOwnProperty
+	 */
+	
+	var has = Object.prototype.hasOwnProperty;
+	
+	/**
+	 * Module exports
+	 */
+	
+	module.exports = Manager;
+	
+	/**
+	 * `Manager` constructor.
+	 *
+	 * @param {String} engine instance or engine uri/opts
+	 * @param {Object} options
+	 * @api public
+	 */
+	
+	function Manager(uri, opts) {
+	  if (!(this instanceof Manager)) return new Manager(uri, opts);
+	  if (uri && 'object' === (typeof uri === 'undefined' ? 'undefined' : _typeof(uri))) {
+	    opts = uri;
+	    uri = undefined;
+	  }
+	  opts = opts || {};
+	
+	  opts.path = opts.path || '/socket.io';
+	  this.nsps = {};
+	  this.subs = [];
+	  this.opts = opts;
+	  this.reconnection(opts.reconnection !== false);
+	  this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);
+	  this.reconnectionDelay(opts.reconnectionDelay || 1000);
+	  this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);
+	  this.randomizationFactor(opts.randomizationFactor || 0.5);
+	  this.backoff = new Backoff({
+	    min: this.reconnectionDelay(),
+	    max: this.reconnectionDelayMax(),
+	    jitter: this.randomizationFactor()
+	  });
+	  this.timeout(null == opts.timeout ? 20000 : opts.timeout);
+	  this.readyState = 'closed';
+	  this.uri = uri;
+	  this.connecting = [];
+	  this.lastPing = null;
+	  this.encoding = false;
+	  this.packetBuffer = [];
+	  var _parser = opts.parser || parser;
+	  this.encoder = new _parser.Encoder();
+	  this.decoder = new _parser.Decoder();
+	  this.autoConnect = opts.autoConnect !== false;
+	  if (this.autoConnect) this.open();
+	}
+	
+	/**
+	 * Propagate given event to sockets and emit on `this`
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.emitAll = function () {
+	  this.emit.apply(this, arguments);
+	  for (var nsp in this.nsps) {
+	    if (has.call(this.nsps, nsp)) {
+	      this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);
+	    }
+	  }
+	};
+	
+	/**
+	 * Update `socket.id` of all sockets
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.updateSocketIds = function () {
+	  for (var nsp in this.nsps) {
+	    if (has.call(this.nsps, nsp)) {
+	      this.nsps[nsp].id = this.generateId(nsp);
+	    }
+	  }
+	};
+	
+	/**
+	 * generate `socket.id` for the given `nsp`
+	 *
+	 * @param {String} nsp
+	 * @return {String}
+	 * @api private
+	 */
+	
+	Manager.prototype.generateId = function (nsp) {
+	  return (nsp === '/' ? '' : nsp + '#') + this.engine.id;
+	};
+	
+	/**
+	 * Mix in `Emitter`.
+	 */
+	
+	Emitter(Manager.prototype);
+	
+	/**
+	 * Sets the `reconnection` config.
+	 *
+	 * @param {Boolean} true/false if it should automatically reconnect
+	 * @return {Manager} self or value
+	 * @api public
+	 */
+	
+	Manager.prototype.reconnection = function (v) {
+	  if (!arguments.length) return this._reconnection;
+	  this._reconnection = !!v;
+	  return this;
+	};
+	
+	/**
+	 * Sets the reconnection attempts config.
+	 *
+	 * @param {Number} max reconnection attempts before giving up
+	 * @return {Manager} self or value
+	 * @api public
+	 */
+	
+	Manager.prototype.reconnectionAttempts = function (v) {
+	  if (!arguments.length) return this._reconnectionAttempts;
+	  this._reconnectionAttempts = v;
+	  return this;
+	};
+	
+	/**
+	 * Sets the delay between reconnections.
+	 *
+	 * @param {Number} delay
+	 * @return {Manager} self or value
+	 * @api public
+	 */
+	
+	Manager.prototype.reconnectionDelay = function (v) {
+	  if (!arguments.length) return this._reconnectionDelay;
+	  this._reconnectionDelay = v;
+	  this.backoff && this.backoff.setMin(v);
+	  return this;
+	};
+	
+	Manager.prototype.randomizationFactor = function (v) {
+	  if (!arguments.length) return this._randomizationFactor;
+	  this._randomizationFactor = v;
+	  this.backoff && this.backoff.setJitter(v);
+	  return this;
+	};
+	
+	/**
+	 * Sets the maximum delay between reconnections.
+	 *
+	 * @param {Number} delay
+	 * @return {Manager} self or value
+	 * @api public
+	 */
+	
+	Manager.prototype.reconnectionDelayMax = function (v) {
+	  if (!arguments.length) return this._reconnectionDelayMax;
+	  this._reconnectionDelayMax = v;
+	  this.backoff && this.backoff.setMax(v);
+	  return this;
+	};
+	
+	/**
+	 * Sets the connection timeout. `false` to disable
+	 *
+	 * @return {Manager} self or value
+	 * @api public
+	 */
+	
+	Manager.prototype.timeout = function (v) {
+	  if (!arguments.length) return this._timeout;
+	  this._timeout = v;
+	  return this;
+	};
+	
+	/**
+	 * Starts trying to reconnect if reconnection is enabled and we have not
+	 * started reconnecting yet
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.maybeReconnectOnOpen = function () {
+	  // Only try to reconnect if it's the first time we're connecting
+	  if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {
+	    // keeps reconnection from firing twice for the same reconnection loop
+	    this.reconnect();
+	  }
+	};
+	
+	/**
+	 * Sets the current transport `socket`.
+	 *
+	 * @param {Function} optional, callback
+	 * @return {Manager} self
+	 * @api public
+	 */
+	
+	Manager.prototype.open = Manager.prototype.connect = function (fn, opts) {
+	
+	  if (~this.readyState.indexOf('open')) return this;
+	
+	  this.engine = eio(this.uri, this.opts);
+	  var socket = this.engine;
+	  var self = this;
+	  this.readyState = 'opening';
+	  this.skipReconnect = false;
+	
+	  // emit `open`
+	  var openSub = on(socket, 'open', function () {
+	    self.onopen();
+	    fn && fn();
+	  });
+	
+	  // emit `connect_error`
+	  var errorSub = on(socket, 'error', function (data) {
+	
+	    self.cleanup();
+	    self.readyState = 'closed';
+	    self.emitAll('connect_error', data);
+	    if (fn) {
+	      var err = new Error('Connection error');
+	      err.data = data;
+	      fn(err);
+	    } else {
+	      // Only do this if there is no fn to handle the error
+	      self.maybeReconnectOnOpen();
+	    }
+	  });
+	
+	  // emit `connect_timeout`
+	  if (false !== this._timeout) {
+	    var timeout = this._timeout;
+	
+	    // set timer
+	    var timer = setTimeout(function () {
+	
+	      openSub.destroy();
+	      socket.close();
+	      socket.emit('error', 'timeout');
+	      self.emitAll('connect_timeout', timeout);
+	    }, timeout);
+	
+	    this.subs.push({
+	      destroy: function destroy() {
+	        clearTimeout(timer);
+	      }
+	    });
+	  }
+	
+	  this.subs.push(openSub);
+	  this.subs.push(errorSub);
+	
+	  return this;
+	};
+	
+	/**
+	 * Called upon transport open.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.onopen = function () {
+	
+	  // clear old subs
+	  this.cleanup();
+	
+	  // mark as open
+	  this.readyState = 'open';
+	  this.emit('open');
+	
+	  // add new subs
+	  var socket = this.engine;
+	  this.subs.push(on(socket, 'data', bind(this, 'ondata')));
+	  this.subs.push(on(socket, 'ping', bind(this, 'onping')));
+	  this.subs.push(on(socket, 'pong', bind(this, 'onpong')));
+	  this.subs.push(on(socket, 'error', bind(this, 'onerror')));
+	  this.subs.push(on(socket, 'close', bind(this, 'onclose')));
+	  this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));
+	};
+	
+	/**
+	 * Called upon a ping.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.onping = function () {
+	  this.lastPing = new Date();
+	  this.emitAll('ping');
+	};
+	
+	/**
+	 * Called upon a packet.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.onpong = function () {
+	  this.emitAll('pong', new Date() - this.lastPing);
+	};
+	
+	/**
+	 * Called with data.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.ondata = function (data) {
+	  this.decoder.add(data);
+	};
+	
+	/**
+	 * Called when parser fully decodes a packet.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.ondecoded = function (packet) {
+	  this.emit('packet', packet);
+	};
+	
+	/**
+	 * Called upon socket error.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.onerror = function (err) {
+	
+	  this.emitAll('error', err);
+	};
+	
+	/**
+	 * Creates a new socket for the given `nsp`.
+	 *
+	 * @return {Socket}
+	 * @api public
+	 */
+	
+	Manager.prototype.socket = function (nsp, opts) {
+	  var socket = this.nsps[nsp];
+	  if (!socket) {
+	    socket = new Socket(this, nsp, opts);
+	    this.nsps[nsp] = socket;
+	    var self = this;
+	    socket.on('connecting', onConnecting);
+	    socket.on('connect', function () {
+	      socket.id = self.generateId(nsp);
+	    });
+	
+	    if (this.autoConnect) {
+	      // manually call here since connecting event is fired before listening
+	      onConnecting();
+	    }
+	  }
+	
+	  function onConnecting() {
+	    if (!~indexOf(self.connecting, socket)) {
+	      self.connecting.push(socket);
+	    }
+	  }
+	
+	  return socket;
+	};
+	
+	/**
+	 * Called upon a socket close.
+	 *
+	 * @param {Socket} socket
+	 */
+	
+	Manager.prototype.destroy = function (socket) {
+	  var index = indexOf(this.connecting, socket);
+	  if (~index) this.connecting.splice(index, 1);
+	  if (this.connecting.length) return;
+	
+	  this.close();
+	};
+	
+	/**
+	 * Writes a packet.
+	 *
+	 * @param {Object} packet
+	 * @api private
+	 */
+	
+	Manager.prototype.packet = function (packet) {
+	
+	  var self = this;
+	  if (packet.query && packet.type === 0) packet.nsp += '?' + packet.query;
+	
+	  if (!self.encoding) {
+	    // encode, then write to engine with result
+	    self.encoding = true;
+	    this.encoder.encode(packet, function (encodedPackets) {
+	      for (var i = 0; i < encodedPackets.length; i++) {
+	        self.engine.write(encodedPackets[i], packet.options);
+	      }
+	      self.encoding = false;
+	      self.processPacketQueue();
+	    });
+	  } else {
+	    // add packet to the queue
+	    self.packetBuffer.push(packet);
+	  }
+	};
+	
+	/**
+	 * If packet buffer is non-empty, begins encoding the
+	 * next packet in line.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.processPacketQueue = function () {
+	  if (this.packetBuffer.length > 0 && !this.encoding) {
+	    var pack = this.packetBuffer.shift();
+	    this.packet(pack);
+	  }
+	};
+	
+	/**
+	 * Clean up transport subscriptions and packet buffer.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.cleanup = function () {
+	
+	  var subsLength = this.subs.length;
+	  for (var i = 0; i < subsLength; i++) {
+	    var sub = this.subs.shift();
+	    sub.destroy();
+	  }
+	
+	  this.packetBuffer = [];
+	  this.encoding = false;
+	  this.lastPing = null;
+	
+	  this.decoder.destroy();
+	};
+	
+	/**
+	 * Close the current socket.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.close = Manager.prototype.disconnect = function () {
+	
+	  this.skipReconnect = true;
+	  this.reconnecting = false;
+	  if ('opening' === this.readyState) {
+	    // `onclose` will not fire because
+	    // an open event never happened
+	    this.cleanup();
+	  }
+	  this.backoff.reset();
+	  this.readyState = 'closed';
+	  if (this.engine) this.engine.close();
+	};
+	
+	/**
+	 * Called upon engine close.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.onclose = function (reason) {
+	
+	  this.cleanup();
+	  this.backoff.reset();
+	  this.readyState = 'closed';
+	  this.emit('close', reason);
+	
+	  if (this._reconnection && !this.skipReconnect) {
+	    this.reconnect();
+	  }
+	};
+	
+	/**
+	 * Attempt a reconnection.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.reconnect = function () {
+	  if (this.reconnecting || this.skipReconnect) return this;
+	
+	  var self = this;
+	
+	  if (this.backoff.attempts >= this._reconnectionAttempts) {
+	
+	    this.backoff.reset();
+	    this.emitAll('reconnect_failed');
+	    this.reconnecting = false;
+	  } else {
+	    var delay = this.backoff.duration();
+	
+	    this.reconnecting = true;
+	    var timer = setTimeout(function () {
+	      if (self.skipReconnect) return;
+	
+	      self.emitAll('reconnect_attempt', self.backoff.attempts);
+	      self.emitAll('reconnecting', self.backoff.attempts);
+	
+	      // check again for the case socket closed in above events
+	      if (self.skipReconnect) return;
+	
+	      self.open(function (err) {
+	        if (err) {
+	
+	          self.reconnecting = false;
+	          self.reconnect();
+	          self.emitAll('reconnect_error', err.data);
+	        } else {
+	
+	          self.onreconnect();
+	        }
+	      });
+	    }, delay);
+	
+	    this.subs.push({
+	      destroy: function destroy() {
+	        clearTimeout(timer);
+	      }
+	    });
+	  }
+	};
+	
+	/**
+	 * Called upon successful reconnect.
+	 *
+	 * @api private
+	 */
+	
+	Manager.prototype.onreconnect = function () {
+	  var attempt = this.backoff.attempts;
+	  this.reconnecting = false;
+	  this.backoff.reset();
+	  this.updateSocketIds();
+	  this.emitAll('reconnect', attempt);
+	};
+
+/***/ }),
+/* 10 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	
+	module.exports = __webpack_require__(11);
+	
+	/**
+	 * Exports parser
+	 *
+	 * @api public
+	 *
+	 */
+	module.exports.parser = __webpack_require__(18);
+
+
+/***/ }),
+/* 11 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/**
+	 * Module dependencies.
+	 */
+	
+	var transports = __webpack_require__(12);
+	var Emitter = __webpack_require__(5);
+	var debug = __webpack_require__(3)('engine.io-client:socket');
+	var index = __webpack_require__(32);
+	var parser = __webpack_require__(18);
+	var parseuri = __webpack_require__(2);
+	var parseqs = __webpack_require__(26);
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = Socket;
+	
+	/**
+	 * Socket constructor.
+	 *
+	 * @param {String|Object} uri or options
+	 * @param {Object} options
+	 * @api public
+	 */
+	
+	function Socket (uri, opts) {
+	  if (!(this instanceof Socket)) return new Socket(uri, opts);
+	
+	  opts = opts || {};
+	
+	  if (uri && 'object' === typeof uri) {
+	    opts = uri;
+	    uri = null;
+	  }
+	
+	  if (uri) {
+	    uri = parseuri(uri);
+	    opts.hostname = uri.host;
+	    opts.secure = uri.protocol === 'https' || uri.protocol === 'wss';
+	    opts.port = uri.port;
+	    if (uri.query) opts.query = uri.query;
+	  } else if (opts.host) {
+	    opts.hostname = parseuri(opts.host).host;
+	  }
+	
+	  this.secure = null != opts.secure ? opts.secure
+	    : (typeof location !== 'undefined' && 'https:' === location.protocol);
+	
+	  if (opts.hostname && !opts.port) {
+	    // if no port is specified manually, use the protocol default
+	    opts.port = this.secure ? '443' : '80';
+	  }
+	
+	  this.agent = opts.agent || false;
+	  this.hostname = opts.hostname ||
+	    (typeof location !== 'undefined' ? location.hostname : 'localhost');
+	  this.port = opts.port || (typeof location !== 'undefined' && location.port
+	      ? location.port
+	      : (this.secure ? 443 : 80));
+	  this.query = opts.query || {};
+	  if ('string' === typeof this.query) this.query = parseqs.decode(this.query);
+	  this.upgrade = false !== opts.upgrade;
+	  this.path = (opts.path || '/engine.io').replace(/\/$/, '') + '/';
+	  this.forceJSONP = !!opts.forceJSONP;
+	  this.jsonp = false !== opts.jsonp;
+	  this.forceBase64 = !!opts.forceBase64;
+	  this.enablesXDR = !!opts.enablesXDR;
+	  this.timestampParam = opts.timestampParam || 't';
+	  this.timestampRequests = opts.timestampRequests;
+	  this.transports = opts.transports || ['polling', 'websocket'];
+	  this.transportOptions = opts.transportOptions || {};
+	  this.readyState = '';
+	  this.writeBuffer = [];
+	  this.prevBufferLen = 0;
+	  this.policyPort = opts.policyPort || 843;
+	  this.rememberUpgrade = opts.rememberUpgrade || false;
+	  this.binaryType = null;
+	  this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;
+	  this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || {}) : false;
+	
+	  if (true === this.perMessageDeflate) this.perMessageDeflate = {};
+	  if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) {
+	    this.perMessageDeflate.threshold = 1024;
+	  }
+	
+	  // SSL options for Node.js client
+	  this.pfx = opts.pfx || null;
+	  this.key = opts.key || null;
+	  this.passphrase = opts.passphrase || null;
+	  this.cert = opts.cert || null;
+	  this.ca = opts.ca || null;
+	  this.ciphers = opts.ciphers || null;
+	  this.rejectUnauthorized = opts.rejectUnauthorized === undefined ? true : opts.rejectUnauthorized;
+	  this.forceNode = !!opts.forceNode;
+	
+	  // detect ReactNative environment
+	  this.isReactNative = (typeof navigator !== 'undefined' && typeof navigator.product === 'string' && navigator.product.toLowerCase() === 'reactnative');
+	
+	  // other options for Node.js or ReactNative client
+	  if (typeof self === 'undefined' || this.isReactNative) {
+	    if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) {
+	      this.extraHeaders = opts.extraHeaders;
+	    }
+	
+	    if (opts.localAddress) {
+	      this.localAddress = opts.localAddress;
+	    }
+	  }
+	
+	  // set on handshake
+	  this.id = null;
+	  this.upgrades = null;
+	  this.pingInterval = null;
+	  this.pingTimeout = null;
+	
+	  // set on heartbeat
+	  this.pingIntervalTimer = null;
+	  this.pingTimeoutTimer = null;
+	
+	  this.open();
+	}
+	
+	Socket.priorWebsocketSuccess = false;
+	
+	/**
+	 * Mix in `Emitter`.
+	 */
+	
+	Emitter(Socket.prototype);
+	
+	/**
+	 * Protocol version.
+	 *
+	 * @api public
+	 */
+	
+	Socket.protocol = parser.protocol; // this is an int
+	
+	/**
+	 * Expose deps for legacy compatibility
+	 * and standalone browser access.
+	 */
+	
+	Socket.Socket = Socket;
+	Socket.Transport = __webpack_require__(17);
+	Socket.transports = __webpack_require__(12);
+	Socket.parser = __webpack_require__(18);
+	
+	/**
+	 * Creates transport of the given type.
+	 *
+	 * @param {String} transport name
+	 * @return {Transport}
+	 * @api private
+	 */
+	
+	Socket.prototype.createTransport = function (name) {
+	
+	  var query = clone(this.query);
+	
+	  // append engine.io protocol identifier
+	  query.EIO = parser.protocol;
+	
+	  // transport name
+	  query.transport = name;
+	
+	  // per-transport options
+	  var options = this.transportOptions[name] || {};
+	
+	  // session id if we already have one
+	  if (this.id) query.sid = this.id;
+	
+	  var transport = new transports[name]({
+	    query: query,
+	    socket: this,
+	    agent: options.agent || this.agent,
+	    hostname: options.hostname || this.hostname,
+	    port: options.port || this.port,
+	    secure: options.secure || this.secure,
+	    path: options.path || this.path,
+	    forceJSONP: options.forceJSONP || this.forceJSONP,
+	    jsonp: options.jsonp || this.jsonp,
+	    forceBase64: options.forceBase64 || this.forceBase64,
+	    enablesXDR: options.enablesXDR || this.enablesXDR,
+	    timestampRequests: options.timestampRequests || this.timestampRequests,
+	    timestampParam: options.timestampParam || this.timestampParam,
+	    policyPort: options.policyPort || this.policyPort,
+	    pfx: options.pfx || this.pfx,
+	    key: options.key || this.key,
+	    passphrase: options.passphrase || this.passphrase,
+	    cert: options.cert || this.cert,
+	    ca: options.ca || this.ca,
+	    ciphers: options.ciphers || this.ciphers,
+	    rejectUnauthorized: options.rejectUnauthorized || this.rejectUnauthorized,
+	    perMessageDeflate: options.perMessageDeflate || this.perMessageDeflate,
+	    extraHeaders: options.extraHeaders || this.extraHeaders,
+	    forceNode: options.forceNode || this.forceNode,
+	    localAddress: options.localAddress || this.localAddress,
+	    requestTimeout: options.requestTimeout || this.requestTimeout,
+	    protocols: options.protocols || void (0),
+	    isReactNative: this.isReactNative
+	  });
+	
+	  return transport;
+	};
+	
+	function clone (obj) {
+	  var o = {};
+	  for (var i in obj) {
+	    if (obj.hasOwnProperty(i)) {
+	      o[i] = obj[i];
+	    }
+	  }
+	  return o;
+	}
+	
+	/**
+	 * Initializes transport to use and starts probe.
+	 *
+	 * @api private
+	 */
+	Socket.prototype.open = function () {
+	  var transport;
+	  if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') !== -1) {
+	    transport = 'websocket';
+	  } else if (0 === this.transports.length) {
+	    // Emit error on next tick so it can be listened to
+	    var self = this;
+	    setTimeout(function () {
+	      self.emit('error', 'No transports available');
+	    }, 0);
+	    return;
+	  } else {
+	    transport = this.transports[0];
+	  }
+	  this.readyState = 'opening';
+	
+	  // Retry with the next transport if the transport is disabled (jsonp: false)
+	  try {
+	    transport = this.createTransport(transport);
+	  } catch (e) {
+	    this.transports.shift();
+	    this.open();
+	    return;
+	  }
+	
+	  transport.open();
+	  this.setTransport(transport);
+	};
+	
+	/**
+	 * Sets the current transport. Disables the existing one (if any).
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.setTransport = function (transport) {
+	
+	  var self = this;
+	
+	  if (this.transport) {
+	
+	    this.transport.removeAllListeners();
+	  }
+	
+	  // set up transport
+	  this.transport = transport;
+	
+	  // set up transport listeners
+	  transport
+	  .on('drain', function () {
+	    self.onDrain();
+	  })
+	  .on('packet', function (packet) {
+	    self.onPacket(packet);
+	  })
+	  .on('error', function (e) {
+	    self.onError(e);
+	  })
+	  .on('close', function () {
+	    self.onClose('transport close');
+	  });
+	};
+	
+	/**
+	 * Probes a transport.
+	 *
+	 * @param {String} transport name
+	 * @api private
+	 */
+	
+	Socket.prototype.probe = function (name) {
+	
+	  var transport = this.createTransport(name, { probe: 1 });
+	  var failed = false;
+	  var self = this;
+	
+	  Socket.priorWebsocketSuccess = false;
+	
+	  function onTransportOpen () {
+	    if (self.onlyBinaryUpgrades) {
+	      var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;
+	      failed = failed || upgradeLosesBinary;
+	    }
+	    if (failed) return;
+	
+	
+	    transport.send([{ type: 'ping', data: 'probe' }]);
+	    transport.once('packet', function (msg) {
+	      if (failed) return;
+	      if ('pong' === msg.type && 'probe' === msg.data) {
+	
+	        self.upgrading = true;
+	        self.emit('upgrading', transport);
+	        if (!transport) return;
+	        Socket.priorWebsocketSuccess = 'websocket' === transport.name;
+	
+	
+	        self.transport.pause(function () {
+	          if (failed) return;
+	          if ('closed' === self.readyState) return;
+	
+	
+	          cleanup();
+	
+	          self.setTransport(transport);
+	          transport.send([{ type: 'upgrade' }]);
+	          self.emit('upgrade', transport);
+	          transport = null;
+	          self.upgrading = false;
+	          self.flush();
+	        });
+	      } else {
+	
+	        var err = new Error('probe error');
+	        err.transport = transport.name;
+	        self.emit('upgradeError', err);
+	      }
+	    });
+	  }
+	
+	  function freezeTransport () {
+	    if (failed) return;
+	
+	    // Any callback called by transport should be ignored since now
+	    failed = true;
+	
+	    cleanup();
+	
+	    transport.close();
+	    transport = null;
+	  }
+	
+	  // Handle any error that happens while probing
+	  function onerror (err) {
+	    var error = new Error('probe error: ' + err);
+	    error.transport = transport.name;
+	
+	    freezeTransport();
+	
+	
+	
+	    self.emit('upgradeError', error);
+	  }
+	
+	  function onTransportClose () {
+	    onerror('transport closed');
+	  }
+	
+	  // When the socket is closed while we're probing
+	  function onclose () {
+	    onerror('socket closed');
+	  }
+	
+	  // When the socket is upgraded while we're probing
+	  function onupgrade (to) {
+	    if (transport && to.name !== transport.name) {
+	
+	      freezeTransport();
+	    }
+	  }
+	
+	  // Remove all listeners on the transport and on self
+	  function cleanup () {
+	    transport.removeListener('open', onTransportOpen);
+	    transport.removeListener('error', onerror);
+	    transport.removeListener('close', onTransportClose);
+	    self.removeListener('close', onclose);
+	    self.removeListener('upgrading', onupgrade);
+	  }
+	
+	  transport.once('open', onTransportOpen);
+	  transport.once('error', onerror);
+	  transport.once('close', onTransportClose);
+	
+	  this.once('close', onclose);
+	  this.once('upgrading', onupgrade);
+	
+	  transport.open();
+	};
+	
+	/**
+	 * Called when connection is deemed open.
+	 *
+	 * @api public
+	 */
+	
+	Socket.prototype.onOpen = function () {
+	
+	  this.readyState = 'open';
+	  Socket.priorWebsocketSuccess = 'websocket' === this.transport.name;
+	  this.emit('open');
+	  this.flush();
+	
+	  // we check for `readyState` in case an `open`
+	  // listener already closed the socket
+	  if ('open' === this.readyState && this.upgrade && this.transport.pause) {
+	
+	    for (var i = 0, l = this.upgrades.length; i < l; i++) {
+	      this.probe(this.upgrades[i]);
+	    }
+	  }
+	};
+	
+	/**
+	 * Handles a packet.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.onPacket = function (packet) {
+	  if ('opening' === this.readyState || 'open' === this.readyState ||
+	      'closing' === this.readyState) {
+	
+	
+	    this.emit('packet', packet);
+	
+	    // Socket is live - any packet counts
+	    this.emit('heartbeat');
+	
+	    switch (packet.type) {
+	      case 'open':
+	        this.onHandshake(JSON.parse(packet.data));
+	        break;
+	
+	      case 'pong':
+	        this.setPing();
+	        this.emit('pong');
+	        break;
+	
+	      case 'error':
+	        var err = new Error('server error');
+	        err.code = packet.data;
+	        this.onError(err);
+	        break;
+	
+	      case 'message':
+	        this.emit('data', packet.data);
+	        this.emit('message', packet.data);
+	        break;
+	    }
+	  } else {
+	
+	  }
+	};
+	
+	/**
+	 * Called upon handshake completion.
+	 *
+	 * @param {Object} handshake obj
+	 * @api private
+	 */
+	
+	Socket.prototype.onHandshake = function (data) {
+	  this.emit('handshake', data);
+	  this.id = data.sid;
+	  this.transport.query.sid = data.sid;
+	  this.upgrades = this.filterUpgrades(data.upgrades);
+	  this.pingInterval = data.pingInterval;
+	  this.pingTimeout = data.pingTimeout;
+	  this.onOpen();
+	  // In case open handler closes socket
+	  if ('closed' === this.readyState) return;
+	  this.setPing();
+	
+	  // Prolong liveness of socket on heartbeat
+	  this.removeListener('heartbeat', this.onHeartbeat);
+	  this.on('heartbeat', this.onHeartbeat);
+	};
+	
+	/**
+	 * Resets ping timeout.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.onHeartbeat = function (timeout) {
+	  clearTimeout(this.pingTimeoutTimer);
+	  var self = this;
+	  self.pingTimeoutTimer = setTimeout(function () {
+	    if ('closed' === self.readyState) return;
+	    self.onClose('ping timeout');
+	  }, timeout || (self.pingInterval + self.pingTimeout));
+	};
+	
+	/**
+	 * Pings server every `this.pingInterval` and expects response
+	 * within `this.pingTimeout` or closes connection.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.setPing = function () {
+	  var self = this;
+	  clearTimeout(self.pingIntervalTimer);
+	  self.pingIntervalTimer = setTimeout(function () {
+	
+	    self.ping();
+	    self.onHeartbeat(self.pingTimeout);
+	  }, self.pingInterval);
+	};
+	
+	/**
+	* Sends a ping packet.
+	*
+	* @api private
+	*/
+	
+	Socket.prototype.ping = function () {
+	  var self = this;
+	  this.sendPacket('ping', function () {
+	    self.emit('ping');
+	  });
+	};
+	
+	/**
+	 * Called on `drain` event
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.onDrain = function () {
+	  this.writeBuffer.splice(0, this.prevBufferLen);
+	
+	  // setting prevBufferLen = 0 is very important
+	  // for example, when upgrading, upgrade packet is sent over,
+	  // and a nonzero prevBufferLen could cause problems on `drain`
+	  this.prevBufferLen = 0;
+	
+	  if (0 === this.writeBuffer.length) {
+	    this.emit('drain');
+	  } else {
+	    this.flush();
+	  }
+	};
+	
+	/**
+	 * Flush write buffers.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.flush = function () {
+	  if ('closed' !== this.readyState && this.transport.writable &&
+	    !this.upgrading && this.writeBuffer.length) {
+	
+	    this.transport.send(this.writeBuffer);
+	    // keep track of current length of writeBuffer
+	    // splice writeBuffer and callbackBuffer on `drain`
+	    this.prevBufferLen = this.writeBuffer.length;
+	    this.emit('flush');
+	  }
+	};
+	
+	/**
+	 * Sends a message.
+	 *
+	 * @param {String} message.
+	 * @param {Function} callback function.
+	 * @param {Object} options.
+	 * @return {Socket} for chaining.
+	 * @api public
+	 */
+	
+	Socket.prototype.write =
+	Socket.prototype.send = function (msg, options, fn) {
+	  this.sendPacket('message', msg, options, fn);
+	  return this;
+	};
+	
+	/**
+	 * Sends a packet.
+	 *
+	 * @param {String} packet type.
+	 * @param {String} data.
+	 * @param {Object} options.
+	 * @param {Function} callback function.
+	 * @api private
+	 */
+	
+	Socket.prototype.sendPacket = function (type, data, options, fn) {
+	  if ('function' === typeof data) {
+	    fn = data;
+	    data = undefined;
+	  }
+	
+	  if ('function' === typeof options) {
+	    fn = options;
+	    options = null;
+	  }
+	
+	  if ('closing' === this.readyState || 'closed' === this.readyState) {
+	    return;
+	  }
+	
+	  options = options || {};
+	  options.compress = false !== options.compress;
+	
+	  var packet = {
+	    type: type,
+	    data: data,
+	    options: options
+	  };
+	  this.emit('packetCreate', packet);
+	  this.writeBuffer.push(packet);
+	  if (fn) this.once('flush', fn);
+	  this.flush();
+	};
+	
+	/**
+	 * Closes the connection.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.close = function () {
+	  if ('opening' === this.readyState || 'open' === this.readyState) {
+	    this.readyState = 'closing';
+	
+	    var self = this;
+	
+	    if (this.writeBuffer.length) {
+	      this.once('drain', function () {
+	        if (this.upgrading) {
+	          waitForUpgrade();
+	        } else {
+	          close();
+	        }
+	      });
+	    } else if (this.upgrading) {
+	      waitForUpgrade();
+	    } else {
+	      close();
+	    }
+	  }
+	
+	  function close () {
+	    self.onClose('forced close');
+	
+	    self.transport.close();
+	  }
+	
+	  function cleanupAndClose () {
+	    self.removeListener('upgrade', cleanupAndClose);
+	    self.removeListener('upgradeError', cleanupAndClose);
+	    close();
+	  }
+	
+	  function waitForUpgrade () {
+	    // wait for upgrade to finish since we can't send packets while pausing a transport
+	    self.once('upgrade', cleanupAndClose);
+	    self.once('upgradeError', cleanupAndClose);
+	  }
+	
+	  return this;
+	};
+	
+	/**
+	 * Called upon transport error
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.onError = function (err) {
+	
+	  Socket.priorWebsocketSuccess = false;
+	  this.emit('error', err);
+	  this.onClose('transport error', err);
+	};
+	
+	/**
+	 * Called upon transport close.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.onClose = function (reason, desc) {
+	  if ('opening' === this.readyState || 'open' === this.readyState || 'closing' === this.readyState) {
+	
+	    var self = this;
+	
+	    // clear timers
+	    clearTimeout(this.pingIntervalTimer);
+	    clearTimeout(this.pingTimeoutTimer);
+	
+	    // stop event from firing again for transport
+	    this.transport.removeAllListeners('close');
+	
+	    // ensure transport won't stay open
+	    this.transport.close();
+	
+	    // ignore further transport communication
+	    this.transport.removeAllListeners();
+	
+	    // set ready state
+	    this.readyState = 'closed';
+	
+	    // clear session id
+	    this.id = null;
+	
+	    // emit close event
+	    this.emit('close', reason, desc);
+	
+	    // clean buffers after, so users can still
+	    // grab the buffers on `close` event
+	    self.writeBuffer = [];
+	    self.prevBufferLen = 0;
+	  }
+	};
+	
+	/**
+	 * Filters upgrades, returning only those matching client transports.
+	 *
+	 * @param {Array} server upgrades
+	 * @api private
+	 *
+	 */
+	
+	Socket.prototype.filterUpgrades = function (upgrades) {
+	  var filteredUpgrades = [];
+	  for (var i = 0, j = upgrades.length; i < j; i++) {
+	    if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);
+	  }
+	  return filteredUpgrades;
+	};
+
+
+/***/ }),
+/* 12 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/**
+	 * Module dependencies
+	 */
+	
+	var XMLHttpRequest = __webpack_require__(13);
+	var XHR = __webpack_require__(15);
+	var JSONP = __webpack_require__(29);
+	var websocket = __webpack_require__(30);
+	
+	/**
+	 * Export transports.
+	 */
+	
+	exports.polling = polling;
+	exports.websocket = websocket;
+	
+	/**
+	 * Polling transport polymorphic constructor.
+	 * Decides on xhr vs jsonp based on feature detection.
+	 *
+	 * @api private
+	 */
+	
+	function polling (opts) {
+	  var xhr;
+	  var xd = false;
+	  var xs = false;
+	  var jsonp = false !== opts.jsonp;
+	
+	  if (typeof location !== 'undefined') {
+	    var isSSL = 'https:' === location.protocol;
+	    var port = location.port;
+	
+	    // some user agents have empty `location.port`
+	    if (!port) {
+	      port = isSSL ? 443 : 80;
+	    }
+	
+	    xd = opts.hostname !== location.hostname || port !== opts.port;
+	    xs = opts.secure !== isSSL;
+	  }
+	
+	  opts.xdomain = xd;
+	  opts.xscheme = xs;
+	  xhr = new XMLHttpRequest(opts);
+	
+	  if ('open' in xhr && !opts.forceJSONP) {
+	    return new XHR(opts);
+	  } else {
+	    if (!jsonp) throw new Error('JSONP disabled');
+	    return new JSONP(opts);
+	  }
+	}
+
+
+/***/ }),
+/* 13 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	// browser shim for xmlhttprequest module
+	
+	var hasCORS = __webpack_require__(14);
+	
+	module.exports = function (opts) {
+	  var xdomain = opts.xdomain;
+	
+	  // scheme must be same when usign XDomainRequest
+	  // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx
+	  var xscheme = opts.xscheme;
+	
+	  // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.
+	  // https://github.com/Automattic/engine.io-client/pull/217
+	  var enablesXDR = opts.enablesXDR;
+	
+	  // XMLHttpRequest can be disabled on IE
+	  try {
+	    if ('undefined' !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {
+	      return new XMLHttpRequest();
+	    }
+	  } catch (e) { }
+	
+	  // Use XDomainRequest for IE8 if enablesXDR is true
+	  // because loading bar keeps flashing when using jsonp-polling
+	  // https://github.com/yujiosaka/socke.io-ie8-loading-example
+	  try {
+	    if ('undefined' !== typeof XDomainRequest && !xscheme && enablesXDR) {
+	      return new XDomainRequest();
+	    }
+	  } catch (e) { }
+	
+	  if (!xdomain) {
+	    try {
+	      return new self[['Active'].concat('Object').join('X')]('Microsoft.XMLHTTP');
+	    } catch (e) { }
+	  }
+	};
+
+
+/***/ }),
+/* 14 */
+/***/ (function(module, exports) {
+
+	
+	/**
+	 * Module exports.
+	 *
+	 * Logic borrowed from Modernizr:
+	 *
+	 *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js
+	 */
+	
+	try {
+	  module.exports = typeof XMLHttpRequest !== 'undefined' &&
+	    'withCredentials' in new XMLHttpRequest();
+	} catch (err) {
+	  // if XMLHttp support is disabled in IE then it will throw
+	  // when trying to create
+	  module.exports = false;
+	}
+
+
+/***/ }),
+/* 15 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/* global attachEvent */
+	
+	/**
+	 * Module requirements.
+	 */
+	
+	var XMLHttpRequest = __webpack_require__(13);
+	var Polling = __webpack_require__(16);
+	var Emitter = __webpack_require__(5);
+	var inherit = __webpack_require__(27);
+	var debug = __webpack_require__(3)('engine.io-client:polling-xhr');
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = XHR;
+	module.exports.Request = Request;
+	
+	/**
+	 * Empty function
+	 */
+	
+	function empty () {}
+	
+	/**
+	 * XHR Polling constructor.
+	 *
+	 * @param {Object} opts
+	 * @api public
+	 */
+	
+	function XHR (opts) {
+	  Polling.call(this, opts);
+	  this.requestTimeout = opts.requestTimeout;
+	  this.extraHeaders = opts.extraHeaders;
+	
+	  if (typeof location !== 'undefined') {
+	    var isSSL = 'https:' === location.protocol;
+	    var port = location.port;
+	
+	    // some user agents have empty `location.port`
+	    if (!port) {
+	      port = isSSL ? 443 : 80;
+	    }
+	
+	    this.xd = (typeof location !== 'undefined' && opts.hostname !== location.hostname) ||
+	      port !== opts.port;
+	    this.xs = opts.secure !== isSSL;
+	  }
+	}
+	
+	/**
+	 * Inherits from Polling.
+	 */
+	
+	inherit(XHR, Polling);
+	
+	/**
+	 * XHR supports binary
+	 */
+	
+	XHR.prototype.supportsBinary = true;
+	
+	/**
+	 * Creates a request.
+	 *
+	 * @param {String} method
+	 * @api private
+	 */
+	
+	XHR.prototype.request = function (opts) {
+	  opts = opts || {};
+	  opts.uri = this.uri();
+	  opts.xd = this.xd;
+	  opts.xs = this.xs;
+	  opts.agent = this.agent || false;
+	  opts.supportsBinary = this.supportsBinary;
+	  opts.enablesXDR = this.enablesXDR;
+	
+	  // SSL options for Node.js client
+	  opts.pfx = this.pfx;
+	  opts.key = this.key;
+	  opts.passphrase = this.passphrase;
+	  opts.cert = this.cert;
+	  opts.ca = this.ca;
+	  opts.ciphers = this.ciphers;
+	  opts.rejectUnauthorized = this.rejectUnauthorized;
+	  opts.requestTimeout = this.requestTimeout;
+	
+	  // other options for Node.js client
+	  opts.extraHeaders = this.extraHeaders;
+	
+	  return new Request(opts);
+	};
+	
+	/**
+	 * Sends data.
+	 *
+	 * @param {String} data to send.
+	 * @param {Function} called upon flush.
+	 * @api private
+	 */
+	
+	XHR.prototype.doWrite = function (data, fn) {
+	  var isBinary = typeof data !== 'string' && data !== undefined;
+	  var req = this.request({ method: 'POST', data: data, isBinary: isBinary });
+	  var self = this;
+	  req.on('success', fn);
+	  req.on('error', function (err) {
+	    self.onError('xhr post error', err);
+	  });
+	  this.sendXhr = req;
+	};
+	
+	/**
+	 * Starts a poll cycle.
+	 *
+	 * @api private
+	 */
+	
+	XHR.prototype.doPoll = function () {
+	
+	  var req = this.request();
+	  var self = this;
+	  req.on('data', function (data) {
+	    self.onData(data);
+	  });
+	  req.on('error', function (err) {
+	    self.onError('xhr poll error', err);
+	  });
+	  this.pollXhr = req;
+	};
+	
+	/**
+	 * Request constructor
+	 *
+	 * @param {Object} options
+	 * @api public
+	 */
+	
+	function Request (opts) {
+	  this.method = opts.method || 'GET';
+	  this.uri = opts.uri;
+	  this.xd = !!opts.xd;
+	  this.xs = !!opts.xs;
+	  this.async = false !== opts.async;
+	  this.data = undefined !== opts.data ? opts.data : null;
+	  this.agent = opts.agent;
+	  this.isBinary = opts.isBinary;
+	  this.supportsBinary = opts.supportsBinary;
+	  this.enablesXDR = opts.enablesXDR;
+	  this.requestTimeout = opts.requestTimeout;
+	
+	  // SSL options for Node.js client
+	  this.pfx = opts.pfx;
+	  this.key = opts.key;
+	  this.passphrase = opts.passphrase;
+	  this.cert = opts.cert;
+	  this.ca = opts.ca;
+	  this.ciphers = opts.ciphers;
+	  this.rejectUnauthorized = opts.rejectUnauthorized;
+	
+	  // other options for Node.js client
+	  this.extraHeaders = opts.extraHeaders;
+	
+	  this.create();
+	}
+	
+	/**
+	 * Mix in `Emitter`.
+	 */
+	
+	Emitter(Request.prototype);
+	
+	/**
+	 * Creates the XHR object and sends the request.
+	 *
+	 * @api private
+	 */
+	
+	Request.prototype.create = function () {
+	  var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };
+	
+	  // SSL options for Node.js client
+	  opts.pfx = this.pfx;
+	  opts.key = this.key;
+	  opts.passphrase = this.passphrase;
+	  opts.cert = this.cert;
+	  opts.ca = this.ca;
+	  opts.ciphers = this.ciphers;
+	  opts.rejectUnauthorized = this.rejectUnauthorized;
+	
+	  var xhr = this.xhr = new XMLHttpRequest(opts);
+	  var self = this;
+	
+	  try {
+	
+	    xhr.open(this.method, this.uri, this.async);
+	    try {
+	      if (this.extraHeaders) {
+	        xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);
+	        for (var i in this.extraHeaders) {
+	          if (this.extraHeaders.hasOwnProperty(i)) {
+	            xhr.setRequestHeader(i, this.extraHeaders[i]);
+	          }
+	        }
+	      }
+	    } catch (e) {}
+	
+	    if ('POST' === this.method) {
+	      try {
+	        if (this.isBinary) {
+	          xhr.setRequestHeader('Content-type', 'application/octet-stream');
+	        } else {
+	          xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');
+	        }
+	      } catch (e) {}
+	    }
+	
+	    try {
+	      xhr.setRequestHeader('Accept', '*/*');
+	    } catch (e) {}
+	
+	    // ie6 check
+	    if ('withCredentials' in xhr) {
+	      xhr.withCredentials = true;
+	    }
+	
+	    if (this.requestTimeout) {
+	      xhr.timeout = this.requestTimeout;
+	    }
+	
+	    if (this.hasXDR()) {
+	      xhr.onload = function () {
+	        self.onLoad();
+	      };
+	      xhr.onerror = function () {
+	        self.onError(xhr.responseText);
+	      };
+	    } else {
+	      xhr.onreadystatechange = function () {
+	        if (xhr.readyState === 2) {
+	          try {
+	            var contentType = xhr.getResponseHeader('Content-Type');
+	            if (self.supportsBinary && contentType === 'application/octet-stream') {
+	              xhr.responseType = 'arraybuffer';
+	            }
+	          } catch (e) {}
+	        }
+	        if (4 !== xhr.readyState) return;
+	        if (200 === xhr.status || 1223 === xhr.status) {
+	          self.onLoad();
+	        } else {
+	          // make sure the `error` event handler that's user-set
+	          // does not throw in the same tick and gets caught here
+	          setTimeout(function () {
+	            self.onError(xhr.status);
+	          }, 0);
+	        }
+	      };
+	    }
+	
+	
+	    xhr.send(this.data);
+	  } catch (e) {
+	    // Need to defer since .create() is called directly fhrom the constructor
+	    // and thus the 'error' event can only be only bound *after* this exception
+	    // occurs.  Therefore, also, we cannot throw here at all.
+	    setTimeout(function () {
+	      self.onError(e);
+	    }, 0);
+	    return;
+	  }
+	
+	  if (typeof document !== 'undefined') {
+	    this.index = Request.requestsCount++;
+	    Request.requests[this.index] = this;
+	  }
+	};
+	
+	/**
+	 * Called upon successful response.
+	 *
+	 * @api private
+	 */
+	
+	Request.prototype.onSuccess = function () {
+	  this.emit('success');
+	  this.cleanup();
+	};
+	
+	/**
+	 * Called if we have data.
+	 *
+	 * @api private
+	 */
+	
+	Request.prototype.onData = function (data) {
+	  this.emit('data', data);
+	  this.onSuccess();
+	};
+	
+	/**
+	 * Called upon error.
+	 *
+	 * @api private
+	 */
+	
+	Request.prototype.onError = function (err) {
+	  this.emit('error', err);
+	  this.cleanup(true);
+	};
+	
+	/**
+	 * Cleans up house.
+	 *
+	 * @api private
+	 */
+	
+	Request.prototype.cleanup = function (fromError) {
+	  if ('undefined' === typeof this.xhr || null === this.xhr) {
+	    return;
+	  }
+	  // xmlhttprequest
+	  if (this.hasXDR()) {
+	    this.xhr.onload = this.xhr.onerror = empty;
+	  } else {
+	    this.xhr.onreadystatechange = empty;
+	  }
+	
+	  if (fromError) {
+	    try {
+	      this.xhr.abort();
+	    } catch (e) {}
+	  }
+	
+	  if (typeof document !== 'undefined') {
+	    delete Request.requests[this.index];
+	  }
+	
+	  this.xhr = null;
+	};
+	
+	/**
+	 * Called upon load.
+	 *
+	 * @api private
+	 */
+	
+	Request.prototype.onLoad = function () {
+	  var data;
+	  try {
+	    var contentType;
+	    try {
+	      contentType = this.xhr.getResponseHeader('Content-Type');
+	    } catch (e) {}
+	    if (contentType === 'application/octet-stream') {
+	      data = this.xhr.response || this.xhr.responseText;
+	    } else {
+	      data = this.xhr.responseText;
+	    }
+	  } catch (e) {
+	    this.onError(e);
+	  }
+	  if (null != data) {
+	    this.onData(data);
+	  }
+	};
+	
+	/**
+	 * Check if it has XDomainRequest.
+	 *
+	 * @api private
+	 */
+	
+	Request.prototype.hasXDR = function () {
+	  return typeof XDomainRequest !== 'undefined' && !this.xs && this.enablesXDR;
+	};
+	
+	/**
+	 * Aborts the request.
+	 *
+	 * @api public
+	 */
+	
+	Request.prototype.abort = function () {
+	  this.cleanup();
+	};
+	
+	/**
+	 * Aborts pending requests when unloading the window. This is needed to prevent
+	 * memory leaks (e.g. when using IE) and to ensure that no spurious error is
+	 * emitted.
+	 */
+	
+	Request.requestsCount = 0;
+	Request.requests = {};
+	
+	if (typeof document !== 'undefined') {
+	  if (typeof attachEvent === 'function') {
+	    attachEvent('onunload', unloadHandler);
+	  } else if (typeof addEventListener === 'function') {
+	    var terminationEvent = 'onpagehide' in self ? 'pagehide' : 'unload';
+	    addEventListener(terminationEvent, unloadHandler, false);
+	  }
+	}
+	
+	function unloadHandler () {
+	  for (var i in Request.requests) {
+	    if (Request.requests.hasOwnProperty(i)) {
+	      Request.requests[i].abort();
+	    }
+	  }
+	}
+
+
+/***/ }),
+/* 16 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/**
+	 * Module dependencies.
+	 */
+	
+	var Transport = __webpack_require__(17);
+	var parseqs = __webpack_require__(26);
+	var parser = __webpack_require__(18);
+	var inherit = __webpack_require__(27);
+	var yeast = __webpack_require__(28);
+	var debug = __webpack_require__(3)('engine.io-client:polling');
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = Polling;
+	
+	/**
+	 * Is XHR2 supported?
+	 */
+	
+	var hasXHR2 = (function () {
+	  var XMLHttpRequest = __webpack_require__(13);
+	  var xhr = new XMLHttpRequest({ xdomain: false });
+	  return null != xhr.responseType;
+	})();
+	
+	/**
+	 * Polling interface.
+	 *
+	 * @param {Object} opts
+	 * @api private
+	 */
+	
+	function Polling (opts) {
+	  var forceBase64 = (opts && opts.forceBase64);
+	  if (!hasXHR2 || forceBase64) {
+	    this.supportsBinary = false;
+	  }
+	  Transport.call(this, opts);
+	}
+	
+	/**
+	 * Inherits from Transport.
+	 */
+	
+	inherit(Polling, Transport);
+	
+	/**
+	 * Transport name.
+	 */
+	
+	Polling.prototype.name = 'polling';
+	
+	/**
+	 * Opens the socket (triggers polling). We write a PING message to determine
+	 * when the transport is open.
+	 *
+	 * @api private
+	 */
+	
+	Polling.prototype.doOpen = function () {
+	  this.poll();
+	};
+	
+	/**
+	 * Pauses polling.
+	 *
+	 * @param {Function} callback upon buffers are flushed and transport is paused
+	 * @api private
+	 */
+	
+	Polling.prototype.pause = function (onPause) {
+	  var self = this;
+	
+	  this.readyState = 'pausing';
+	
+	  function pause () {
+	
+	    self.readyState = 'paused';
+	    onPause();
+	  }
+	
+	  if (this.polling || !this.writable) {
+	    var total = 0;
+	
+	    if (this.polling) {
+	
+	      total++;
+	      this.once('pollComplete', function () {
+	
+	        --total || pause();
+	      });
+	    }
+	
+	    if (!this.writable) {
+	
+	      total++;
+	      this.once('drain', function () {
+	
+	        --total || pause();
+	      });
+	    }
+	  } else {
+	    pause();
+	  }
+	};
+	
+	/**
+	 * Starts polling cycle.
+	 *
+	 * @api public
+	 */
+	
+	Polling.prototype.poll = function () {
+	
+	  this.polling = true;
+	  this.doPoll();
+	  this.emit('poll');
+	};
+	
+	/**
+	 * Overloads onData to detect payloads.
+	 *
+	 * @api private
+	 */
+	
+	Polling.prototype.onData = function (data) {
+	  var self = this;
+	
+	  var callback = function (packet, index, total) {
+	    // if its the first message we consider the transport open
+	    if ('opening' === self.readyState) {
+	      self.onOpen();
+	    }
+	
+	    // if its a close packet, we close the ongoing requests
+	    if ('close' === packet.type) {
+	      self.onClose();
+	      return false;
+	    }
+	
+	    // otherwise bypass onData and handle the message
+	    self.onPacket(packet);
+	  };
+	
+	  // decode payload
+	  parser.decodePayload(data, this.socket.binaryType, callback);
+	
+	  // if an event did not trigger closing
+	  if ('closed' !== this.readyState) {
+	    // if we got data we're not polling
+	    this.polling = false;
+	    this.emit('pollComplete');
+	
+	    if ('open' === this.readyState) {
+	      this.poll();
+	    } else {
+	
+	    }
+	  }
+	};
+	
+	/**
+	 * For polling, send a close packet.
+	 *
+	 * @api private
+	 */
+	
+	Polling.prototype.doClose = function () {
+	  var self = this;
+	
+	  function close () {
+	
+	    self.write([{ type: 'close' }]);
+	  }
+	
+	  if ('open' === this.readyState) {
+	
+	    close();
+	  } else {
+	    // in case we're trying to close while
+	    // handshaking is in progress (GH-164)
+	
+	    this.once('open', close);
+	  }
+	};
+	
+	/**
+	 * Writes a packets payload.
+	 *
+	 * @param {Array} data packets
+	 * @param {Function} drain callback
+	 * @api private
+	 */
+	
+	Polling.prototype.write = function (packets) {
+	  var self = this;
+	  this.writable = false;
+	  var callbackfn = function () {
+	    self.writable = true;
+	    self.emit('drain');
+	  };
+	
+	  parser.encodePayload(packets, this.supportsBinary, function (data) {
+	    self.doWrite(data, callbackfn);
+	  });
+	};
+	
+	/**
+	 * Generates uri for connection.
+	 *
+	 * @api private
+	 */
+	
+	Polling.prototype.uri = function () {
+	  var query = this.query || {};
+	  var schema = this.secure ? 'https' : 'http';
+	  var port = '';
+	
+	  // cache busting is forced
+	  if (false !== this.timestampRequests) {
+	    query[this.timestampParam] = yeast();
+	  }
+	
+	  if (!this.supportsBinary && !query.sid) {
+	    query.b64 = 1;
+	  }
+	
+	  query = parseqs.encode(query);
+	
+	  // avoid port if default for schema
+	  if (this.port && (('https' === schema && Number(this.port) !== 443) ||
+	     ('http' === schema && Number(this.port) !== 80))) {
+	    port = ':' + this.port;
+	  }
+	
+	  // prepend ? to query
+	  if (query.length) {
+	    query = '?' + query;
+	  }
+	
+	  var ipv6 = this.hostname.indexOf(':') !== -1;
+	  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;
+	};
+
+
+/***/ }),
+/* 17 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/**
+	 * Module dependencies.
+	 */
+	
+	var parser = __webpack_require__(18);
+	var Emitter = __webpack_require__(5);
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = Transport;
+	
+	/**
+	 * Transport abstract constructor.
+	 *
+	 * @param {Object} options.
+	 * @api private
+	 */
+	
+	function Transport (opts) {
+	  this.path = opts.path;
+	  this.hostname = opts.hostname;
+	  this.port = opts.port;
+	  this.secure = opts.secure;
+	  this.query = opts.query;
+	  this.timestampParam = opts.timestampParam;
+	  this.timestampRequests = opts.timestampRequests;
+	  this.readyState = '';
+	  this.agent = opts.agent || false;
+	  this.socket = opts.socket;
+	  this.enablesXDR = opts.enablesXDR;
+	
+	  // SSL options for Node.js client
+	  this.pfx = opts.pfx;
+	  this.key = opts.key;
+	  this.passphrase = opts.passphrase;
+	  this.cert = opts.cert;
+	  this.ca = opts.ca;
+	  this.ciphers = opts.ciphers;
+	  this.rejectUnauthorized = opts.rejectUnauthorized;
+	  this.forceNode = opts.forceNode;
+	
+	  // results of ReactNative environment detection
+	  this.isReactNative = opts.isReactNative;
+	
+	  // other options for Node.js client
+	  this.extraHeaders = opts.extraHeaders;
+	  this.localAddress = opts.localAddress;
+	}
+	
+	/**
+	 * Mix in `Emitter`.
+	 */
+	
+	Emitter(Transport.prototype);
+	
+	/**
+	 * Emits an error.
+	 *
+	 * @param {String} str
+	 * @return {Transport} for chaining
+	 * @api public
+	 */
+	
+	Transport.prototype.onError = function (msg, desc) {
+	  var err = new Error(msg);
+	  err.type = 'TransportError';
+	  err.description = desc;
+	  this.emit('error', err);
+	  return this;
+	};
+	
+	/**
+	 * Opens the transport.
+	 *
+	 * @api public
+	 */
+	
+	Transport.prototype.open = function () {
+	  if ('closed' === this.readyState || '' === this.readyState) {
+	    this.readyState = 'opening';
+	    this.doOpen();
+	  }
+	
+	  return this;
+	};
+	
+	/**
+	 * Closes the transport.
+	 *
+	 * @api private
+	 */
+	
+	Transport.prototype.close = function () {
+	  if ('opening' === this.readyState || 'open' === this.readyState) {
+	    this.doClose();
+	    this.onClose();
+	  }
+	
+	  return this;
+	};
+	
+	/**
+	 * Sends multiple packets.
+	 *
+	 * @param {Array} packets
+	 * @api private
+	 */
+	
+	Transport.prototype.send = function (packets) {
+	  if ('open' === this.readyState) {
+	    this.write(packets);
+	  } else {
+	    throw new Error('Transport not open');
+	  }
+	};
+	
+	/**
+	 * Called upon open
+	 *
+	 * @api private
+	 */
+	
+	Transport.prototype.onOpen = function () {
+	  this.readyState = 'open';
+	  this.writable = true;
+	  this.emit('open');
+	};
+	
+	/**
+	 * Called with data.
+	 *
+	 * @param {String} data
+	 * @api private
+	 */
+	
+	Transport.prototype.onData = function (data) {
+	  var packet = parser.decodePacket(data, this.socket.binaryType);
+	  this.onPacket(packet);
+	};
+	
+	/**
+	 * Called with a decoded packet.
+	 */
+	
+	Transport.prototype.onPacket = function (packet) {
+	  this.emit('packet', packet);
+	};
+	
+	/**
+	 * Called upon close.
+	 *
+	 * @api private
+	 */
+	
+	Transport.prototype.onClose = function () {
+	  this.readyState = 'closed';
+	  this.emit('close');
+	};
+
+
+/***/ }),
+/* 18 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/**
+	 * Module dependencies.
+	 */
+	
+	var keys = __webpack_require__(19);
+	var hasBinary = __webpack_require__(20);
+	var sliceBuffer = __webpack_require__(21);
+	var after = __webpack_require__(22);
+	var utf8 = __webpack_require__(23);
+	
+	var base64encoder;
+	if (typeof ArrayBuffer !== 'undefined') {
+	  base64encoder = __webpack_require__(24);
+	}
+	
+	/**
+	 * Check if we are running an android browser. That requires us to use
+	 * ArrayBuffer with polling transports...
+	 *
+	 * http://ghinda.net/jpeg-blob-ajax-android/
+	 */
+	
+	var isAndroid = typeof navigator !== 'undefined' && /Android/i.test(navigator.userAgent);
+	
+	/**
+	 * Check if we are running in PhantomJS.
+	 * Uploading a Blob with PhantomJS does not work correctly, as reported here:
+	 * https://github.com/ariya/phantomjs/issues/11395
+	 * @type boolean
+	 */
+	var isPhantomJS = typeof navigator !== 'undefined' && /PhantomJS/i.test(navigator.userAgent);
+	
+	/**
+	 * When true, avoids using Blobs to encode payloads.
+	 * @type boolean
+	 */
+	var dontSendBlobs = isAndroid || isPhantomJS;
+	
+	/**
+	 * Current protocol version.
+	 */
+	
+	exports.protocol = 3;
+	
+	/**
+	 * Packet types.
+	 */
+	
+	var packets = exports.packets = {
+	    open:     0    // non-ws
+	  , close:    1    // non-ws
+	  , ping:     2
+	  , pong:     3
+	  , message:  4
+	  , upgrade:  5
+	  , noop:     6
+	};
+	
+	var packetslist = keys(packets);
+	
+	/**
+	 * Premade error packet.
+	 */
+	
+	var err = { type: 'error', data: 'parser error' };
+	
+	/**
+	 * Create a blob api even for blob builder when vendor prefixes exist
+	 */
+	
+	var Blob = __webpack_require__(25);
+	
+	/**
+	 * Encodes a packet.
+	 *
+	 *     <packet type id> [ <data> ]
+	 *
+	 * Example:
+	 *
+	 *     5hello world
+	 *     3
+	 *     4
+	 *
+	 * Binary is encoded in an identical principle
+	 *
+	 * @api private
+	 */
+	
+	exports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {
+	  if (typeof supportsBinary === 'function') {
+	    callback = supportsBinary;
+	    supportsBinary = false;
+	  }
+	
+	  if (typeof utf8encode === 'function') {
+	    callback = utf8encode;
+	    utf8encode = null;
+	  }
+	
+	  var data = (packet.data === undefined)
+	    ? undefined
+	    : packet.data.buffer || packet.data;
+	
+	  if (typeof ArrayBuffer !== 'undefined' && data instanceof ArrayBuffer) {
+	    return encodeArrayBuffer(packet, supportsBinary, callback);
+	  } else if (typeof Blob !== 'undefined' && data instanceof Blob) {
+	    return encodeBlob(packet, supportsBinary, callback);
+	  }
+	
+	  // might be an object with { base64: true, data: dataAsBase64String }
+	  if (data && data.base64) {
+	    return encodeBase64Object(packet, callback);
+	  }
+	
+	  // Sending data as a utf-8 string
+	  var encoded = packets[packet.type];
+	
+	  // data fragment is optional
+	  if (undefined !== packet.data) {
+	    encoded += utf8encode ? utf8.encode(String(packet.data), { strict: false }) : String(packet.data);
+	  }
+	
+	  return callback('' + encoded);
+	
+	};
+	
+	function encodeBase64Object(packet, callback) {
+	  // packet data is an object { base64: true, data: dataAsBase64String }
+	  var message = 'b' + exports.packets[packet.type] + packet.data.data;
+	  return callback(message);
+	}
+	
+	/**
+	 * Encode packet helpers for binary types
+	 */
+	
+	function encodeArrayBuffer(packet, supportsBinary, callback) {
+	  if (!supportsBinary) {
+	    return exports.encodeBase64Packet(packet, callback);
+	  }
+	
+	  var data = packet.data;
+	  var contentArray = new Uint8Array(data);
+	  var resultBuffer = new Uint8Array(1 + data.byteLength);
+	
+	  resultBuffer[0] = packets[packet.type];
+	  for (var i = 0; i < contentArray.length; i++) {
+	    resultBuffer[i+1] = contentArray[i];
+	  }
+	
+	  return callback(resultBuffer.buffer);
+	}
+	
+	function encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {
+	  if (!supportsBinary) {
+	    return exports.encodeBase64Packet(packet, callback);
+	  }
+	
+	  var fr = new FileReader();
+	  fr.onload = function() {
+	    exports.encodePacket({ type: packet.type, data: fr.result }, supportsBinary, true, callback);
+	  };
+	  return fr.readAsArrayBuffer(packet.data);
+	}
+	
+	function encodeBlob(packet, supportsBinary, callback) {
+	  if (!supportsBinary) {
+	    return exports.encodeBase64Packet(packet, callback);
+	  }
+	
+	  if (dontSendBlobs) {
+	    return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);
+	  }
+	
+	  var length = new Uint8Array(1);
+	  length[0] = packets[packet.type];
+	  var blob = new Blob([length.buffer, packet.data]);
+	
+	  return callback(blob);
+	}
+	
+	/**
+	 * Encodes a packet with binary data in a base64 string
+	 *
+	 * @param {Object} packet, has `type` and `data`
+	 * @return {String} base64 encoded message
+	 */
+	
+	exports.encodeBase64Packet = function(packet, callback) {
+	  var message = 'b' + exports.packets[packet.type];
+	  if (typeof Blob !== 'undefined' && packet.data instanceof Blob) {
+	    var fr = new FileReader();
+	    fr.onload = function() {
+	      var b64 = fr.result.split(',')[1];
+	      callback(message + b64);
+	    };
+	    return fr.readAsDataURL(packet.data);
+	  }
+	
+	  var b64data;
+	  try {
+	    b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));
+	  } catch (e) {
+	    // iPhone Safari doesn't let you apply with typed arrays
+	    var typed = new Uint8Array(packet.data);
+	    var basic = new Array(typed.length);
+	    for (var i = 0; i < typed.length; i++) {
+	      basic[i] = typed[i];
+	    }
+	    b64data = String.fromCharCode.apply(null, basic);
+	  }
+	  message += btoa(b64data);
+	  return callback(message);
+	};
+	
+	/**
+	 * Decodes a packet. Changes format to Blob if requested.
+	 *
+	 * @return {Object} with `type` and `data` (if any)
+	 * @api private
+	 */
+	
+	exports.decodePacket = function (data, binaryType, utf8decode) {
+	  if (data === undefined) {
+	    return err;
+	  }
+	  // String data
+	  if (typeof data === 'string') {
+	    if (data.charAt(0) === 'b') {
+	      return exports.decodeBase64Packet(data.substr(1), binaryType);
+	    }
+	
+	    if (utf8decode) {
+	      data = tryDecode(data);
+	      if (data === false) {
+	        return err;
+	      }
+	    }
+	    var type = data.charAt(0);
+	
+	    if (Number(type) != type || !packetslist[type]) {
+	      return err;
+	    }
+	
+	    if (data.length > 1) {
+	      return { type: packetslist[type], data: data.substring(1) };
+	    } else {
+	      return { type: packetslist[type] };
+	    }
+	  }
+	
+	  var asArray = new Uint8Array(data);
+	  var type = asArray[0];
+	  var rest = sliceBuffer(data, 1);
+	  if (Blob && binaryType === 'blob') {
+	    rest = new Blob([rest]);
+	  }
+	  return { type: packetslist[type], data: rest };
+	};
+	
+	function tryDecode(data) {
+	  try {
+	    data = utf8.decode(data, { strict: false });
+	  } catch (e) {
+	    return false;
+	  }
+	  return data;
+	}
+	
+	/**
+	 * Decodes a packet encoded in a base64 string
+	 *
+	 * @param {String} base64 encoded message
+	 * @return {Object} with `type` and `data` (if any)
+	 */
+	
+	exports.decodeBase64Packet = function(msg, binaryType) {
+	  var type = packetslist[msg.charAt(0)];
+	  if (!base64encoder) {
+	    return { type: type, data: { base64: true, data: msg.substr(1) } };
+	  }
+	
+	  var data = base64encoder.decode(msg.substr(1));
+	
+	  if (binaryType === 'blob' && Blob) {
+	    data = new Blob([data]);
+	  }
+	
+	  return { type: type, data: data };
+	};
+	
+	/**
+	 * Encodes multiple messages (payload).
+	 *
+	 *     <length>:data
+	 *
+	 * Example:
+	 *
+	 *     11:hello world2:hi
+	 *
+	 * If any contents are binary, they will be encoded as base64 strings. Base64
+	 * encoded strings are marked with a b before the length specifier
+	 *
+	 * @param {Array} packets
+	 * @api private
+	 */
+	
+	exports.encodePayload = function (packets, supportsBinary, callback) {
+	  if (typeof supportsBinary === 'function') {
+	    callback = supportsBinary;
+	    supportsBinary = null;
+	  }
+	
+	  var isBinary = hasBinary(packets);
+	
+	  if (supportsBinary && isBinary) {
+	    if (Blob && !dontSendBlobs) {
+	      return exports.encodePayloadAsBlob(packets, callback);
+	    }
+	
+	    return exports.encodePayloadAsArrayBuffer(packets, callback);
+	  }
+	
+	  if (!packets.length) {
+	    return callback('0:');
+	  }
+	
+	  function setLengthHeader(message) {
+	    return message.length + ':' + message;
+	  }
+	
+	  function encodeOne(packet, doneCallback) {
+	    exports.encodePacket(packet, !isBinary ? false : supportsBinary, false, function(message) {
+	      doneCallback(null, setLengthHeader(message));
+	    });
+	  }
+	
+	  map(packets, encodeOne, function(err, results) {
+	    return callback(results.join(''));
+	  });
+	};
+	
+	/**
+	 * Async array map using after
+	 */
+	
+	function map(ary, each, done) {
+	  var result = new Array(ary.length);
+	  var next = after(ary.length, done);
+	
+	  var eachWithIndex = function(i, el, cb) {
+	    each(el, function(error, msg) {
+	      result[i] = msg;
+	      cb(error, result);
+	    });
+	  };
+	
+	  for (var i = 0; i < ary.length; i++) {
+	    eachWithIndex(i, ary[i], next);
+	  }
+	}
+	
+	/*
+	 * Decodes data when a payload is maybe expected. Possible binary contents are
+	 * decoded from their base64 representation
+	 *
+	 * @param {String} data, callback method
+	 * @api public
+	 */
+	
+	exports.decodePayload = function (data, binaryType, callback) {
+	  if (typeof data !== 'string') {
+	    return exports.decodePayloadAsBinary(data, binaryType, callback);
+	  }
+	
+	  if (typeof binaryType === 'function') {
+	    callback = binaryType;
+	    binaryType = null;
+	  }
+	
+	  var packet;
+	  if (data === '') {
+	    // parser error - ignoring payload
+	    return callback(err, 0, 1);
+	  }
+	
+	  var length = '', n, msg;
+	
+	  for (var i = 0, l = data.length; i < l; i++) {
+	    var chr = data.charAt(i);
+	
+	    if (chr !== ':') {
+	      length += chr;
+	      continue;
+	    }
+	
+	    if (length === '' || (length != (n = Number(length)))) {
+	      // parser error - ignoring payload
+	      return callback(err, 0, 1);
+	    }
+	
+	    msg = data.substr(i + 1, n);
+	
+	    if (length != msg.length) {
+	      // parser error - ignoring payload
+	      return callback(err, 0, 1);
+	    }
+	
+	    if (msg.length) {
+	      packet = exports.decodePacket(msg, binaryType, false);
+	
+	      if (err.type === packet.type && err.data === packet.data) {
+	        // parser error in individual packet - ignoring payload
+	        return callback(err, 0, 1);
+	      }
+	
+	      var ret = callback(packet, i + n, l);
+	      if (false === ret) return;
+	    }
+	
+	    // advance cursor
+	    i += n;
+	    length = '';
+	  }
+	
+	  if (length !== '') {
+	    // parser error - ignoring payload
+	    return callback(err, 0, 1);
+	  }
+	
+	};
+	
+	/**
+	 * Encodes multiple messages (payload) as binary.
+	 *
+	 * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number
+	 * 255><data>
+	 *
+	 * Example:
+	 * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers
+	 *
+	 * @param {Array} packets
+	 * @return {ArrayBuffer} encoded payload
+	 * @api private
+	 */
+	
+	exports.encodePayloadAsArrayBuffer = function(packets, callback) {
+	  if (!packets.length) {
+	    return callback(new ArrayBuffer(0));
+	  }
+	
+	  function encodeOne(packet, doneCallback) {
+	    exports.encodePacket(packet, true, true, function(data) {
+	      return doneCallback(null, data);
+	    });
+	  }
+	
+	  map(packets, encodeOne, function(err, encodedPackets) {
+	    var totalLength = encodedPackets.reduce(function(acc, p) {
+	      var len;
+	      if (typeof p === 'string'){
+	        len = p.length;
+	      } else {
+	        len = p.byteLength;
+	      }
+	      return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2
+	    }, 0);
+	
+	    var resultArray = new Uint8Array(totalLength);
+	
+	    var bufferIndex = 0;
+	    encodedPackets.forEach(function(p) {
+	      var isString = typeof p === 'string';
+	      var ab = p;
+	      if (isString) {
+	        var view = new Uint8Array(p.length);
+	        for (var i = 0; i < p.length; i++) {
+	          view[i] = p.charCodeAt(i);
+	        }
+	        ab = view.buffer;
+	      }
+	
+	      if (isString) { // not true binary
+	        resultArray[bufferIndex++] = 0;
+	      } else { // true binary
+	        resultArray[bufferIndex++] = 1;
+	      }
+	
+	      var lenStr = ab.byteLength.toString();
+	      for (var i = 0; i < lenStr.length; i++) {
+	        resultArray[bufferIndex++] = parseInt(lenStr[i]);
+	      }
+	      resultArray[bufferIndex++] = 255;
+	
+	      var view = new Uint8Array(ab);
+	      for (var i = 0; i < view.length; i++) {
+	        resultArray[bufferIndex++] = view[i];
+	      }
+	    });
+	
+	    return callback(resultArray.buffer);
+	  });
+	};
+	
+	/**
+	 * Encode as Blob
+	 */
+	
+	exports.encodePayloadAsBlob = function(packets, callback) {
+	  function encodeOne(packet, doneCallback) {
+	    exports.encodePacket(packet, true, true, function(encoded) {
+	      var binaryIdentifier = new Uint8Array(1);
+	      binaryIdentifier[0] = 1;
+	      if (typeof encoded === 'string') {
+	        var view = new Uint8Array(encoded.length);
+	        for (var i = 0; i < encoded.length; i++) {
+	          view[i] = encoded.charCodeAt(i);
+	        }
+	        encoded = view.buffer;
+	        binaryIdentifier[0] = 0;
+	      }
+	
+	      var len = (encoded instanceof ArrayBuffer)
+	        ? encoded.byteLength
+	        : encoded.size;
+	
+	      var lenStr = len.toString();
+	      var lengthAry = new Uint8Array(lenStr.length + 1);
+	      for (var i = 0; i < lenStr.length; i++) {
+	        lengthAry[i] = parseInt(lenStr[i]);
+	      }
+	      lengthAry[lenStr.length] = 255;
+	
+	      if (Blob) {
+	        var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);
+	        doneCallback(null, blob);
+	      }
+	    });
+	  }
+	
+	  map(packets, encodeOne, function(err, results) {
+	    return callback(new Blob(results));
+	  });
+	};
+	
+	/*
+	 * Decodes data when a payload is maybe expected. Strings are decoded by
+	 * interpreting each byte as a key code for entries marked to start with 0. See
+	 * description of encodePayloadAsBinary
+	 *
+	 * @param {ArrayBuffer} data, callback method
+	 * @api public
+	 */
+	
+	exports.decodePayloadAsBinary = function (data, binaryType, callback) {
+	  if (typeof binaryType === 'function') {
+	    callback = binaryType;
+	    binaryType = null;
+	  }
+	
+	  var bufferTail = data;
+	  var buffers = [];
+	
+	  while (bufferTail.byteLength > 0) {
+	    var tailArray = new Uint8Array(bufferTail);
+	    var isString = tailArray[0] === 0;
+	    var msgLength = '';
+	
+	    for (var i = 1; ; i++) {
+	      if (tailArray[i] === 255) break;
+	
+	      // 310 = char length of Number.MAX_VALUE
+	      if (msgLength.length > 310) {
+	        return callback(err, 0, 1);
+	      }
+	
+	      msgLength += tailArray[i];
+	    }
+	
+	    bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);
+	    msgLength = parseInt(msgLength);
+	
+	    var msg = sliceBuffer(bufferTail, 0, msgLength);
+	    if (isString) {
+	      try {
+	        msg = String.fromCharCode.apply(null, new Uint8Array(msg));
+	      } catch (e) {
+	        // iPhone Safari doesn't let you apply to typed arrays
+	        var typed = new Uint8Array(msg);
+	        msg = '';
+	        for (var i = 0; i < typed.length; i++) {
+	          msg += String.fromCharCode(typed[i]);
+	        }
+	      }
+	    }
+	
+	    buffers.push(msg);
+	    bufferTail = sliceBuffer(bufferTail, msgLength);
+	  }
+	
+	  var total = buffers.length;
+	  buffers.forEach(function(buffer, i) {
+	    callback(exports.decodePacket(buffer, binaryType, true), i, total);
+	  });
+	};
+
+
+/***/ }),
+/* 19 */
+/***/ (function(module, exports) {
+
+	
+	/**
+	 * Gets the keys for an object.
+	 *
+	 * @return {Array} keys
+	 * @api private
+	 */
+	
+	module.exports = Object.keys || function keys (obj){
+	  var arr = [];
+	  var has = Object.prototype.hasOwnProperty;
+	
+	  for (var i in obj) {
+	    if (has.call(obj, i)) {
+	      arr.push(i);
+	    }
+	  }
+	  return arr;
+	};
+
+
+/***/ }),
+/* 20 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/* global Blob File */
+	
+	/*
+	 * Module requirements.
+	 */
+	
+	var isArray = __webpack_require__(7);
+	
+	var toString = Object.prototype.toString;
+	var withNativeBlob = typeof Blob === 'function' ||
+	                        typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]';
+	var withNativeFile = typeof File === 'function' ||
+	                        typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]';
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = hasBinary;
+	
+	/**
+	 * Checks for binary data.
+	 *
+	 * Supports Buffer, ArrayBuffer, Blob and File.
+	 *
+	 * @param {Object} anything
+	 * @api public
+	 */
+	
+	function hasBinary (obj) {
+	  if (!obj || typeof obj !== 'object') {
+	    return false;
+	  }
+	
+	  if (isArray(obj)) {
+	    for (var i = 0, l = obj.length; i < l; i++) {
+	      if (hasBinary(obj[i])) {
+	        return true;
+	      }
+	    }
+	    return false;
+	  }
+	
+	  if ((typeof Buffer === 'function' && Buffer.isBuffer && Buffer.isBuffer(obj)) ||
+	    (typeof ArrayBuffer === 'function' && obj instanceof ArrayBuffer) ||
+	    (withNativeBlob && obj instanceof Blob) ||
+	    (withNativeFile && obj instanceof File)
+	  ) {
+	    return true;
+	  }
+	
+	  // see: https://github.com/Automattic/has-binary/pull/4
+	  if (obj.toJSON && typeof obj.toJSON === 'function' && arguments.length === 1) {
+	    return hasBinary(obj.toJSON(), true);
+	  }
+	
+	  for (var key in obj) {
+	    if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {
+	      return true;
+	    }
+	  }
+	
+	  return false;
+	}
+
+
+/***/ }),
+/* 21 */
+/***/ (function(module, exports) {
+
+	/**
+	 * An abstraction for slicing an arraybuffer even when
+	 * ArrayBuffer.prototype.slice is not supported
+	 *
+	 * @api public
+	 */
+	
+	module.exports = function(arraybuffer, start, end) {
+	  var bytes = arraybuffer.byteLength;
+	  start = start || 0;
+	  end = end || bytes;
+	
+	  if (arraybuffer.slice) { return arraybuffer.slice(start, end); }
+	
+	  if (start < 0) { start += bytes; }
+	  if (end < 0) { end += bytes; }
+	  if (end > bytes) { end = bytes; }
+	
+	  if (start >= bytes || start >= end || bytes === 0) {
+	    return new ArrayBuffer(0);
+	  }
+	
+	  var abv = new Uint8Array(arraybuffer);
+	  var result = new Uint8Array(end - start);
+	  for (var i = start, ii = 0; i < end; i++, ii++) {
+	    result[ii] = abv[i];
+	  }
+	  return result.buffer;
+	};
+
+
+/***/ }),
+/* 22 */
+/***/ (function(module, exports) {
+
+	module.exports = after
+	
+	function after(count, callback, err_cb) {
+	    var bail = false
+	    err_cb = err_cb || noop
+	    proxy.count = count
+	
+	    return (count === 0) ? callback() : proxy
+	
+	    function proxy(err, result) {
+	        if (proxy.count <= 0) {
+	            throw new Error('after called too many times')
+	        }
+	        --proxy.count
+	
+	        // after first error, rest are passed to err_cb
+	        if (err) {
+	            bail = true
+	            callback(err)
+	            // future error callbacks will go to error handler
+	            callback = err_cb
+	        } else if (proxy.count === 0 && !bail) {
+	            callback(null, result)
+	        }
+	    }
+	}
+	
+	function noop() {}
+
+
+/***/ }),
+/* 23 */
+/***/ (function(module, exports) {
+
+	/*! https://mths.be/utf8js v2.1.2 by @mathias */
+	
+	var stringFromCharCode = String.fromCharCode;
+	
+	// Taken from https://mths.be/punycode
+	function ucs2decode(string) {
+		var output = [];
+		var counter = 0;
+		var length = string.length;
+		var value;
+		var extra;
+		while (counter < length) {
+			value = string.charCodeAt(counter++);
+			if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
+				// high surrogate, and there is a next character
+				extra = string.charCodeAt(counter++);
+				if ((extra & 0xFC00) == 0xDC00) { // low surrogate
+					output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
+				} else {
+					// unmatched surrogate; only append this code unit, in case the next
+					// code unit is the high surrogate of a surrogate pair
+					output.push(value);
+					counter--;
+				}
+			} else {
+				output.push(value);
+			}
+		}
+		return output;
+	}
+	
+	// Taken from https://mths.be/punycode
+	function ucs2encode(array) {
+		var length = array.length;
+		var index = -1;
+		var value;
+		var output = '';
+		while (++index < length) {
+			value = array[index];
+			if (value > 0xFFFF) {
+				value -= 0x10000;
+				output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
+				value = 0xDC00 | value & 0x3FF;
+			}
+			output += stringFromCharCode(value);
+		}
+		return output;
+	}
+	
+	function checkScalarValue(codePoint, strict) {
+		if (codePoint >= 0xD800 && codePoint <= 0xDFFF) {
+			if (strict) {
+				throw Error(
+					'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +
+					' is not a scalar value'
+				);
+			}
+			return false;
+		}
+		return true;
+	}
+	/*--------------------------------------------------------------------------*/
+	
+	function createByte(codePoint, shift) {
+		return stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);
+	}
+	
+	function encodeCodePoint(codePoint, strict) {
+		if ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence
+			return stringFromCharCode(codePoint);
+		}
+		var symbol = '';
+		if ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence
+			symbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);
+		}
+		else if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence
+			if (!checkScalarValue(codePoint, strict)) {
+				codePoint = 0xFFFD;
+			}
+			symbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);
+			symbol += createByte(codePoint, 6);
+		}
+		else if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence
+			symbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);
+			symbol += createByte(codePoint, 12);
+			symbol += createByte(codePoint, 6);
+		}
+		symbol += stringFromCharCode((codePoint & 0x3F) | 0x80);
+		return symbol;
+	}
+	
+	function utf8encode(string, opts) {
+		opts = opts || {};
+		var strict = false !== opts.strict;
+	
+		var codePoints = ucs2decode(string);
+		var length = codePoints.length;
+		var index = -1;
+		var codePoint;
+		var byteString = '';
+		while (++index < length) {
+			codePoint = codePoints[index];
+			byteString += encodeCodePoint(codePoint, strict);
+		}
+		return byteString;
+	}
+	
+	/*--------------------------------------------------------------------------*/
+	
+	function readContinuationByte() {
+		if (byteIndex >= byteCount) {
+			throw Error('Invalid byte index');
+		}
+	
+		var continuationByte = byteArray[byteIndex] & 0xFF;
+		byteIndex++;
+	
+		if ((continuationByte & 0xC0) == 0x80) {
+			return continuationByte & 0x3F;
+		}
+	
+		// If we end up here, it’s not a continuation byte
+		throw Error('Invalid continuation byte');
+	}
+	
+	function decodeSymbol(strict) {
+		var byte1;
+		var byte2;
+		var byte3;
+		var byte4;
+		var codePoint;
+	
+		if (byteIndex > byteCount) {
+			throw Error('Invalid byte index');
+		}
+	
+		if (byteIndex == byteCount) {
+			return false;
+		}
+	
+		// Read first byte
+		byte1 = byteArray[byteIndex] & 0xFF;
+		byteIndex++;
+	
+		// 1-byte sequence (no continuation bytes)
+		if ((byte1 & 0x80) == 0) {
+			return byte1;
+		}
+	
+		// 2-byte sequence
+		if ((byte1 & 0xE0) == 0xC0) {
+			byte2 = readContinuationByte();
+			codePoint = ((byte1 & 0x1F) << 6) | byte2;
+			if (codePoint >= 0x80) {
+				return codePoint;
+			} else {
+				throw Error('Invalid continuation byte');
+			}
+		}
+	
+		// 3-byte sequence (may include unpaired surrogates)
+		if ((byte1 & 0xF0) == 0xE0) {
+			byte2 = readContinuationByte();
+			byte3 = readContinuationByte();
+			codePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;
+			if (codePoint >= 0x0800) {
+				return checkScalarValue(codePoint, strict) ? codePoint : 0xFFFD;
+			} else {
+				throw Error('Invalid continuation byte');
+			}
+		}
+	
+		// 4-byte sequence
+		if ((byte1 & 0xF8) == 0xF0) {
+			byte2 = readContinuationByte();
+			byte3 = readContinuationByte();
+			byte4 = readContinuationByte();
+			codePoint = ((byte1 & 0x07) << 0x12) | (byte2 << 0x0C) |
+				(byte3 << 0x06) | byte4;
+			if (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {
+				return codePoint;
+			}
+		}
+	
+		throw Error('Invalid UTF-8 detected');
+	}
+	
+	var byteArray;
+	var byteCount;
+	var byteIndex;
+	function utf8decode(byteString, opts) {
+		opts = opts || {};
+		var strict = false !== opts.strict;
+	
+		byteArray = ucs2decode(byteString);
+		byteCount = byteArray.length;
+		byteIndex = 0;
+		var codePoints = [];
+		var tmp;
+		while ((tmp = decodeSymbol(strict)) !== false) {
+			codePoints.push(tmp);
+		}
+		return ucs2encode(codePoints);
+	}
+	
+	module.exports = {
+		version: '2.1.2',
+		encode: utf8encode,
+		decode: utf8decode
+	};
+
+
+/***/ }),
+/* 24 */
+/***/ (function(module, exports) {
+
+	/*
+	 * base64-arraybuffer
+	 * https://github.com/niklasvh/base64-arraybuffer
+	 *
+	 * Copyright (c) 2012 Niklas von Hertzen
+	 * Licensed under the MIT license.
+	 */
+	(function(){
+	  "use strict";
+	
+	  var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+	
+	  // Use a lookup table to find the index.
+	  var lookup = new Uint8Array(256);
+	  for (var i = 0; i < chars.length; i++) {
+	    lookup[chars.charCodeAt(i)] = i;
+	  }
+	
+	  exports.encode = function(arraybuffer) {
+	    var bytes = new Uint8Array(arraybuffer),
+	    i, len = bytes.length, base64 = "";
+	
+	    for (i = 0; i < len; i+=3) {
+	      base64 += chars[bytes[i] >> 2];
+	      base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
+	      base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
+	      base64 += chars[bytes[i + 2] & 63];
+	    }
+	
+	    if ((len % 3) === 2) {
+	      base64 = base64.substring(0, base64.length - 1) + "=";
+	    } else if (len % 3 === 1) {
+	      base64 = base64.substring(0, base64.length - 2) + "==";
+	    }
+	
+	    return base64;
+	  };
+	
+	  exports.decode =  function(base64) {
+	    var bufferLength = base64.length * 0.75,
+	    len = base64.length, i, p = 0,
+	    encoded1, encoded2, encoded3, encoded4;
+	
+	    if (base64[base64.length - 1] === "=") {
+	      bufferLength--;
+	      if (base64[base64.length - 2] === "=") {
+	        bufferLength--;
+	      }
+	    }
+	
+	    var arraybuffer = new ArrayBuffer(bufferLength),
+	    bytes = new Uint8Array(arraybuffer);
+	
+	    for (i = 0; i < len; i+=4) {
+	      encoded1 = lookup[base64.charCodeAt(i)];
+	      encoded2 = lookup[base64.charCodeAt(i+1)];
+	      encoded3 = lookup[base64.charCodeAt(i+2)];
+	      encoded4 = lookup[base64.charCodeAt(i+3)];
+	
+	      bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
+	      bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
+	      bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
+	    }
+	
+	    return arraybuffer;
+	  };
+	})();
+
+
+/***/ }),
+/* 25 */
+/***/ (function(module, exports) {
+
+	/**
+	 * Create a blob builder even when vendor prefixes exist
+	 */
+	
+	var BlobBuilder = typeof BlobBuilder !== 'undefined' ? BlobBuilder :
+	  typeof WebKitBlobBuilder !== 'undefined' ? WebKitBlobBuilder :
+	  typeof MSBlobBuilder !== 'undefined' ? MSBlobBuilder :
+	  typeof MozBlobBuilder !== 'undefined' ? MozBlobBuilder : 
+	  false;
+	
+	/**
+	 * Check if Blob constructor is supported
+	 */
+	
+	var blobSupported = (function() {
+	  try {
+	    var a = new Blob(['hi']);
+	    return a.size === 2;
+	  } catch(e) {
+	    return false;
+	  }
+	})();
+	
+	/**
+	 * Check if Blob constructor supports ArrayBufferViews
+	 * Fails in Safari 6, so we need to map to ArrayBuffers there.
+	 */
+	
+	var blobSupportsArrayBufferView = blobSupported && (function() {
+	  try {
+	    var b = new Blob([new Uint8Array([1,2])]);
+	    return b.size === 2;
+	  } catch(e) {
+	    return false;
+	  }
+	})();
+	
+	/**
+	 * Check if BlobBuilder is supported
+	 */
+	
+	var blobBuilderSupported = BlobBuilder
+	  && BlobBuilder.prototype.append
+	  && BlobBuilder.prototype.getBlob;
+	
+	/**
+	 * Helper function that maps ArrayBufferViews to ArrayBuffers
+	 * Used by BlobBuilder constructor and old browsers that didn't
+	 * support it in the Blob constructor.
+	 */
+	
+	function mapArrayBufferViews(ary) {
+	  return ary.map(function(chunk) {
+	    if (chunk.buffer instanceof ArrayBuffer) {
+	      var buf = chunk.buffer;
+	
+	      // if this is a subarray, make a copy so we only
+	      // include the subarray region from the underlying buffer
+	      if (chunk.byteLength !== buf.byteLength) {
+	        var copy = new Uint8Array(chunk.byteLength);
+	        copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));
+	        buf = copy.buffer;
+	      }
+	
+	      return buf;
+	    }
+	
+	    return chunk;
+	  });
+	}
+	
+	function BlobBuilderConstructor(ary, options) {
+	  options = options || {};
+	
+	  var bb = new BlobBuilder();
+	  mapArrayBufferViews(ary).forEach(function(part) {
+	    bb.append(part);
+	  });
+	
+	  return (options.type) ? bb.getBlob(options.type) : bb.getBlob();
+	};
+	
+	function BlobConstructor(ary, options) {
+	  return new Blob(mapArrayBufferViews(ary), options || {});
+	};
+	
+	if (typeof Blob !== 'undefined') {
+	  BlobBuilderConstructor.prototype = Blob.prototype;
+	  BlobConstructor.prototype = Blob.prototype;
+	}
+	
+	module.exports = (function() {
+	  if (blobSupported) {
+	    return blobSupportsArrayBufferView ? Blob : BlobConstructor;
+	  } else if (blobBuilderSupported) {
+	    return BlobBuilderConstructor;
+	  } else {
+	    return undefined;
+	  }
+	})();
+
+
+/***/ }),
+/* 26 */
+/***/ (function(module, exports) {
+
+	/**
+	 * Compiles a querystring
+	 * Returns string representation of the object
+	 *
+	 * @param {Object}
+	 * @api private
+	 */
+	
+	exports.encode = function (obj) {
+	  var str = '';
+	
+	  for (var i in obj) {
+	    if (obj.hasOwnProperty(i)) {
+	      if (str.length) str += '&';
+	      str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);
+	    }
+	  }
+	
+	  return str;
+	};
+	
+	/**
+	 * Parses a simple querystring into an object
+	 *
+	 * @param {String} qs
+	 * @api private
+	 */
+	
+	exports.decode = function(qs){
+	  var qry = {};
+	  var pairs = qs.split('&');
+	  for (var i = 0, l = pairs.length; i < l; i++) {
+	    var pair = pairs[i].split('=');
+	    qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
+	  }
+	  return qry;
+	};
+
+
+/***/ }),
+/* 27 */
+/***/ (function(module, exports) {
+
+	
+	module.exports = function(a, b){
+	  var fn = function(){};
+	  fn.prototype = b.prototype;
+	  a.prototype = new fn;
+	  a.prototype.constructor = a;
+	};
+
+/***/ }),
+/* 28 */
+/***/ (function(module, exports) {
+
+	'use strict';
+	
+	var alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('')
+	  , length = 64
+	  , map = {}
+	  , seed = 0
+	  , i = 0
+	  , prev;
+	
+	/**
+	 * Return a string representing the specified number.
+	 *
+	 * @param {Number} num The number to convert.
+	 * @returns {String} The string representation of the number.
+	 * @api public
+	 */
+	function encode(num) {
+	  var encoded = '';
+	
+	  do {
+	    encoded = alphabet[num % length] + encoded;
+	    num = Math.floor(num / length);
+	  } while (num > 0);
+	
+	  return encoded;
+	}
+	
+	/**
+	 * Return the integer value specified by the given string.
+	 *
+	 * @param {String} str The string to convert.
+	 * @returns {Number} The integer value represented by the string.
+	 * @api public
+	 */
+	function decode(str) {
+	  var decoded = 0;
+	
+	  for (i = 0; i < str.length; i++) {
+	    decoded = decoded * length + map[str.charAt(i)];
+	  }
+	
+	  return decoded;
+	}
+	
+	/**
+	 * Yeast: A tiny growing id generator.
+	 *
+	 * @returns {String} A unique id.
+	 * @api public
+	 */
+	function yeast() {
+	  var now = encode(+new Date());
+	
+	  if (now !== prev) return seed = 0, prev = now;
+	  return now +'.'+ encode(seed++);
+	}
+	
+	//
+	// Map each character to its index.
+	//
+	for (; i < length; i++) map[alphabet[i]] = i;
+	
+	//
+	// Expose the `yeast`, `encode` and `decode` functions.
+	//
+	yeast.encode = encode;
+	yeast.decode = decode;
+	module.exports = yeast;
+
+
+/***/ }),
+/* 29 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/* WEBPACK VAR INJECTION */(function(global) {/**
+	 * Module requirements.
+	 */
+	
+	var Polling = __webpack_require__(16);
+	var inherit = __webpack_require__(27);
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = JSONPPolling;
+	
+	/**
+	 * Cached regular expressions.
+	 */
+	
+	var rNewline = /\n/g;
+	var rEscapedNewline = /\\n/g;
+	
+	/**
+	 * Global JSONP callbacks.
+	 */
+	
+	var callbacks;
+	
+	/**
+	 * Noop.
+	 */
+	
+	function empty () { }
+	
+	/**
+	 * Until https://github.com/tc39/proposal-global is shipped.
+	 */
+	function glob () {
+	  return typeof self !== 'undefined' ? self
+	      : typeof window !== 'undefined' ? window
+	      : typeof global !== 'undefined' ? global : {};
+	}
+	
+	/**
+	 * JSONP Polling constructor.
+	 *
+	 * @param {Object} opts.
+	 * @api public
+	 */
+	
+	function JSONPPolling (opts) {
+	  Polling.call(this, opts);
+	
+	  this.query = this.query || {};
+	
+	  // define global callbacks array if not present
+	  // we do this here (lazily) to avoid unneeded global pollution
+	  if (!callbacks) {
+	    // we need to consider multiple engines in the same page
+	    var global = glob();
+	    callbacks = global.___eio = (global.___eio || []);
+	  }
+	
+	  // callback identifier
+	  this.index = callbacks.length;
+	
+	  // add callback to jsonp global
+	  var self = this;
+	  callbacks.push(function (msg) {
+	    self.onData(msg);
+	  });
+	
+	  // append to query string
+	  this.query.j = this.index;
+	
+	  // prevent spurious errors from being emitted when the window is unloaded
+	  if (typeof addEventListener === 'function') {
+	    addEventListener('beforeunload', function () {
+	      if (self.script) self.script.onerror = empty;
+	    }, false);
+	  }
+	}
+	
+	/**
+	 * Inherits from Polling.
+	 */
+	
+	inherit(JSONPPolling, Polling);
+	
+	/*
+	 * JSONP only supports binary as base64 encoded strings
+	 */
+	
+	JSONPPolling.prototype.supportsBinary = false;
+	
+	/**
+	 * Closes the socket.
+	 *
+	 * @api private
+	 */
+	
+	JSONPPolling.prototype.doClose = function () {
+	  if (this.script) {
+	    this.script.parentNode.removeChild(this.script);
+	    this.script = null;
+	  }
+	
+	  if (this.form) {
+	    this.form.parentNode.removeChild(this.form);
+	    this.form = null;
+	    this.iframe = null;
+	  }
+	
+	  Polling.prototype.doClose.call(this);
+	};
+	
+	/**
+	 * Starts a poll cycle.
+	 *
+	 * @api private
+	 */
+	
+	JSONPPolling.prototype.doPoll = function () {
+	  var self = this;
+	  var script = document.createElement('script');
+	
+	  if (this.script) {
+	    this.script.parentNode.removeChild(this.script);
+	    this.script = null;
+	  }
+	
+	  script.async = true;
+	  script.src = this.uri();
+	  script.onerror = function (e) {
+	    self.onError('jsonp poll error', e);
+	  };
+	
+	  var insertAt = document.getElementsByTagName('script')[0];
+	  if (insertAt) {
+	    insertAt.parentNode.insertBefore(script, insertAt);
+	  } else {
+	    (document.head || document.body).appendChild(script);
+	  }
+	  this.script = script;
+	
+	  var isUAgecko = 'undefined' !== typeof navigator && /gecko/i.test(navigator.userAgent);
+	
+	  if (isUAgecko) {
+	    setTimeout(function () {
+	      var iframe = document.createElement('iframe');
+	      document.body.appendChild(iframe);
+	      document.body.removeChild(iframe);
+	    }, 100);
+	  }
+	};
+	
+	/**
+	 * Writes with a hidden iframe.
+	 *
+	 * @param {String} data to send
+	 * @param {Function} called upon flush.
+	 * @api private
+	 */
+	
+	JSONPPolling.prototype.doWrite = function (data, fn) {
+	  var self = this;
+	
+	  if (!this.form) {
+	    var form = document.createElement('form');
+	    var area = document.createElement('textarea');
+	    var id = this.iframeId = 'eio_iframe_' + this.index;
+	    var iframe;
+	
+	    form.className = 'socketio';
+	    form.style.position = 'absolute';
+	    form.style.top = '-1000px';
+	    form.style.left = '-1000px';
+	    form.target = id;
+	    form.method = 'POST';
+	    form.setAttribute('accept-charset', 'utf-8');
+	    area.name = 'd';
+	    form.appendChild(area);
+	    document.body.appendChild(form);
+	
+	    this.form = form;
+	    this.area = area;
+	  }
+	
+	  this.form.action = this.uri();
+	
+	  function complete () {
+	    initIframe();
+	    fn();
+	  }
+	
+	  function initIframe () {
+	    if (self.iframe) {
+	      try {
+	        self.form.removeChild(self.iframe);
+	      } catch (e) {
+	        self.onError('jsonp polling iframe removal error', e);
+	      }
+	    }
+	
+	    try {
+	      // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
+	      var html = '<iframe src="javascript:0" name="' + self.iframeId + '">';
+	      iframe = document.createElement(html);
+	    } catch (e) {
+	      iframe = document.createElement('iframe');
+	      iframe.name = self.iframeId;
+	      iframe.src = 'javascript:0';
+	    }
+	
+	    iframe.id = self.iframeId;
+	
+	    self.form.appendChild(iframe);
+	    self.iframe = iframe;
+	  }
+	
+	  initIframe();
+	
+	  // escape \n to prevent it from being converted into \r\n by some UAs
+	  // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side
+	  data = data.replace(rEscapedNewline, '\\\n');
+	  this.area.value = data.replace(rNewline, '\\n');
+	
+	  try {
+	    this.form.submit();
+	  } catch (e) {}
+	
+	  if (this.iframe.attachEvent) {
+	    this.iframe.onreadystatechange = function () {
+	      if (self.iframe.readyState === 'complete') {
+	        complete();
+	      }
+	    };
+	  } else {
+	    this.iframe.onload = complete;
+	  }
+	};
+	
+	/* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }())))
+
+/***/ }),
+/* 30 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	/**
+	 * Module dependencies.
+	 */
+	
+	var Transport = __webpack_require__(17);
+	var parser = __webpack_require__(18);
+	var parseqs = __webpack_require__(26);
+	var inherit = __webpack_require__(27);
+	var yeast = __webpack_require__(28);
+	var debug = __webpack_require__(3)('engine.io-client:websocket');
+	var BrowserWebSocket, NodeWebSocket;
+	if (typeof self === 'undefined') {
+	  try {
+	    NodeWebSocket = __webpack_require__(31);
+	  } catch (e) { }
+	} else {
+	  BrowserWebSocket = self.WebSocket || self.MozWebSocket;
+	}
+	
+	/**
+	 * Get either the `WebSocket` or `MozWebSocket` globals
+	 * in the browser or try to resolve WebSocket-compatible
+	 * interface exposed by `ws` for Node-like environment.
+	 */
+	
+	var WebSocket = BrowserWebSocket || NodeWebSocket;
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = WS;
+	
+	/**
+	 * WebSocket transport constructor.
+	 *
+	 * @api {Object} connection options
+	 * @api public
+	 */
+	
+	function WS (opts) {
+	  var forceBase64 = (opts && opts.forceBase64);
+	  if (forceBase64) {
+	    this.supportsBinary = false;
+	  }
+	  this.perMessageDeflate = opts.perMessageDeflate;
+	  this.usingBrowserWebSocket = BrowserWebSocket && !opts.forceNode;
+	  this.protocols = opts.protocols;
+	  if (!this.usingBrowserWebSocket) {
+	    WebSocket = NodeWebSocket;
+	  }
+	  Transport.call(this, opts);
+	}
+	
+	/**
+	 * Inherits from Transport.
+	 */
+	
+	inherit(WS, Transport);
+	
+	/**
+	 * Transport name.
+	 *
+	 * @api public
+	 */
+	
+	WS.prototype.name = 'websocket';
+	
+	/*
+	 * WebSockets support binary
+	 */
+	
+	WS.prototype.supportsBinary = true;
+	
+	/**
+	 * Opens socket.
+	 *
+	 * @api private
+	 */
+	
+	WS.prototype.doOpen = function () {
+	  if (!this.check()) {
+	    // let probe timeout
+	    return;
+	  }
+	
+	  var uri = this.uri();
+	  var protocols = this.protocols;
+	  var opts = {
+	    agent: this.agent,
+	    perMessageDeflate: this.perMessageDeflate
+	  };
+	
+	  // SSL options for Node.js client
+	  opts.pfx = this.pfx;
+	  opts.key = this.key;
+	  opts.passphrase = this.passphrase;
+	  opts.cert = this.cert;
+	  opts.ca = this.ca;
+	  opts.ciphers = this.ciphers;
+	  opts.rejectUnauthorized = this.rejectUnauthorized;
+	  if (this.extraHeaders) {
+	    opts.headers = this.extraHeaders;
+	  }
+	  if (this.localAddress) {
+	    opts.localAddress = this.localAddress;
+	  }
+	
+	  try {
+	    this.ws = this.usingBrowserWebSocket && !this.isReactNative ? (protocols ? new WebSocket(uri, protocols) : new WebSocket(uri)) : new WebSocket(uri, protocols, opts);
+	  } catch (err) {
+	    return this.emit('error', err);
+	  }
+	
+	  if (this.ws.binaryType === undefined) {
+	    this.supportsBinary = false;
+	  }
+	
+	  if (this.ws.supports && this.ws.supports.binary) {
+	    this.supportsBinary = true;
+	    this.ws.binaryType = 'nodebuffer';
+	  } else {
+	    this.ws.binaryType = 'arraybuffer';
+	  }
+	
+	  this.addEventListeners();
+	};
+	
+	/**
+	 * Adds event listeners to the socket
+	 *
+	 * @api private
+	 */
+	
+	WS.prototype.addEventListeners = function () {
+	  var self = this;
+	
+	  this.ws.onopen = function () {
+	    self.onOpen();
+	  };
+	  this.ws.onclose = function () {
+	    self.onClose();
+	  };
+	  this.ws.onmessage = function (ev) {
+	    self.onData(ev.data);
+	  };
+	  this.ws.onerror = function (e) {
+	    self.onError('websocket error', e);
+	  };
+	};
+	
+	/**
+	 * Writes data to socket.
+	 *
+	 * @param {Array} array of packets.
+	 * @api private
+	 */
+	
+	WS.prototype.write = function (packets) {
+	  var self = this;
+	  this.writable = false;
+	
+	  // encodePacket efficient as it uses WS framing
+	  // no need for encodePayload
+	  var total = packets.length;
+	  for (var i = 0, l = total; i < l; i++) {
+	    (function (packet) {
+	      parser.encodePacket(packet, self.supportsBinary, function (data) {
+	        if (!self.usingBrowserWebSocket) {
+	          // always create a new object (GH-437)
+	          var opts = {};
+	          if (packet.options) {
+	            opts.compress = packet.options.compress;
+	          }
+	
+	          if (self.perMessageDeflate) {
+	            var len = 'string' === typeof data ? Buffer.byteLength(data) : data.length;
+	            if (len < self.perMessageDeflate.threshold) {
+	              opts.compress = false;
+	            }
+	          }
+	        }
+	
+	        // Sometimes the websocket has already been closed but the browser didn't
+	        // have a chance of informing us about it yet, in that case send will
+	        // throw an error
+	        try {
+	          if (self.usingBrowserWebSocket) {
+	            // TypeError is thrown when passing the second argument on Safari
+	            self.ws.send(data);
+	          } else {
+	            self.ws.send(data, opts);
+	          }
+	        } catch (e) {
+	
+	        }
+	
+	        --total || done();
+	      });
+	    })(packets[i]);
+	  }
+	
+	  function done () {
+	    self.emit('flush');
+	
+	    // fake drain
+	    // defer to next tick to allow Socket to clear writeBuffer
+	    setTimeout(function () {
+	      self.writable = true;
+	      self.emit('drain');
+	    }, 0);
+	  }
+	};
+	
+	/**
+	 * Called upon close
+	 *
+	 * @api private
+	 */
+	
+	WS.prototype.onClose = function () {
+	  Transport.prototype.onClose.call(this);
+	};
+	
+	/**
+	 * Closes socket.
+	 *
+	 * @api private
+	 */
+	
+	WS.prototype.doClose = function () {
+	  if (typeof this.ws !== 'undefined') {
+	    this.ws.close();
+	  }
+	};
+	
+	/**
+	 * Generates uri for connection.
+	 *
+	 * @api private
+	 */
+	
+	WS.prototype.uri = function () {
+	  var query = this.query || {};
+	  var schema = this.secure ? 'wss' : 'ws';
+	  var port = '';
+	
+	  // avoid port if default for schema
+	  if (this.port && (('wss' === schema && Number(this.port) !== 443) ||
+	    ('ws' === schema && Number(this.port) !== 80))) {
+	    port = ':' + this.port;
+	  }
+	
+	  // append timestamp to URI
+	  if (this.timestampRequests) {
+	    query[this.timestampParam] = yeast();
+	  }
+	
+	  // communicate binary support capabilities
+	  if (!this.supportsBinary) {
+	    query.b64 = 1;
+	  }
+	
+	  query = parseqs.encode(query);
+	
+	  // prepend ? to query
+	  if (query.length) {
+	    query = '?' + query;
+	  }
+	
+	  var ipv6 = this.hostname.indexOf(':') !== -1;
+	  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;
+	};
+	
+	/**
+	 * Feature detection for WebSocket.
+	 *
+	 * @return {Boolean} whether this transport is available.
+	 * @api public
+	 */
+	
+	WS.prototype.check = function () {
+	  return !!WebSocket && !('__initialize' in WebSocket && this.name === WS.prototype.name);
+	};
+
+
+/***/ }),
+/* 31 */
+/***/ (function(module, exports) {
+
+	/* (ignored) */
+
+/***/ }),
+/* 32 */
+/***/ (function(module, exports) {
+
+	
+	var indexOf = [].indexOf;
+	
+	module.exports = function(arr, obj){
+	  if (indexOf) return arr.indexOf(obj);
+	  for (var i = 0; i < arr.length; ++i) {
+	    if (arr[i] === obj) return i;
+	  }
+	  return -1;
+	};
+
+/***/ }),
+/* 33 */
+/***/ (function(module, exports, __webpack_require__) {
+
+	'use strict';
+	
+	var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+	
+	/**
+	 * Module dependencies.
+	 */
+	
+	var parser = __webpack_require__(4);
+	var Emitter = __webpack_require__(5);
+	var toArray = __webpack_require__(34);
+	var on = __webpack_require__(35);
+	var bind = __webpack_require__(36);
+	var debug = __webpack_require__(3)('socket.io-client:socket');
+	var parseqs = __webpack_require__(26);
+	var hasBin = __webpack_require__(20);
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = exports = Socket;
+	
+	/**
+	 * Internal events (blacklisted).
+	 * These events can't be emitted by the user.
+	 *
+	 * @api private
+	 */
+	
+	var events = {
+	  connect: 1,
+	  connect_error: 1,
+	  connect_timeout: 1,
+	  connecting: 1,
+	  disconnect: 1,
+	  error: 1,
+	  reconnect: 1,
+	  reconnect_attempt: 1,
+	  reconnect_failed: 1,
+	  reconnect_error: 1,
+	  reconnecting: 1,
+	  ping: 1,
+	  pong: 1
+	};
+	
+	/**
+	 * Shortcut to `Emitter#emit`.
+	 */
+	
+	var emit = Emitter.prototype.emit;
+	
+	/**
+	 * `Socket` constructor.
+	 *
+	 * @api public
+	 */
+	
+	function Socket(io, nsp, opts) {
+	  this.io = io;
+	  this.nsp = nsp;
+	  this.json = this; // compat
+	  this.ids = 0;
+	  this.acks = {};
+	  this.receiveBuffer = [];
+	  this.sendBuffer = [];
+	  this.connected = false;
+	  this.disconnected = true;
+	  this.flags = {};
+	  if (opts && opts.query) {
+	    this.query = opts.query;
+	  }
+	  if (this.io.autoConnect) this.open();
+	}
+	
+	/**
+	 * Mix in `Emitter`.
+	 */
+	
+	Emitter(Socket.prototype);
+	
+	/**
+	 * Subscribe to open, close and packet events
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.subEvents = function () {
+	  if (this.subs) return;
+	
+	  var io = this.io;
+	  this.subs = [on(io, 'open', bind(this, 'onopen')), on(io, 'packet', bind(this, 'onpacket')), on(io, 'close', bind(this, 'onclose'))];
+	};
+	
+	/**
+	 * "Opens" the socket.
+	 *
+	 * @api public
+	 */
+	
+	Socket.prototype.open = Socket.prototype.connect = function () {
+	  if (this.connected) return this;
+	
+	  this.subEvents();
+	  this.io.open(); // ensure open
+	  if ('open' === this.io.readyState) this.onopen();
+	  this.emit('connecting');
+	  return this;
+	};
+	
+	/**
+	 * Sends a `message` event.
+	 *
+	 * @return {Socket} self
+	 * @api public
+	 */
+	
+	Socket.prototype.send = function () {
+	  var args = toArray(arguments);
+	  args.unshift('message');
+	  this.emit.apply(this, args);
+	  return this;
+	};
+	
+	/**
+	 * Override `emit`.
+	 * If the event is in `events`, it's emitted normally.
+	 *
+	 * @param {String} event name
+	 * @return {Socket} self
+	 * @api public
+	 */
+	
+	Socket.prototype.emit = function (ev) {
+	  if (events.hasOwnProperty(ev)) {
+	    emit.apply(this, arguments);
+	    return this;
+	  }
+	
+	  var args = toArray(arguments);
+	  var packet = {
+	    type: (this.flags.binary !== undefined ? this.flags.binary : hasBin(args)) ? parser.BINARY_EVENT : parser.EVENT,
+	    data: args
+	  };
+	
+	  packet.options = {};
+	  packet.options.compress = !this.flags || false !== this.flags.compress;
+	
+	  // event ack callback
+	  if ('function' === typeof args[args.length - 1]) {
+	
+	    this.acks[this.ids] = args.pop();
+	    packet.id = this.ids++;
+	  }
+	
+	  if (this.connected) {
+	    this.packet(packet);
+	  } else {
+	    this.sendBuffer.push(packet);
+	  }
+	
+	  this.flags = {};
+	
+	  return this;
+	};
+	
+	/**
+	 * Sends a packet.
+	 *
+	 * @param {Object} packet
+	 * @api private
+	 */
+	
+	Socket.prototype.packet = function (packet) {
+	  packet.nsp = this.nsp;
+	  this.io.packet(packet);
+	};
+	
+	/**
+	 * Called upon engine `open`.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.onopen = function () {
+	
+	  // write connect packet if necessary
+	  if ('/' !== this.nsp) {
+	    if (this.query) {
+	      var query = _typeof(this.query) === 'object' ? parseqs.encode(this.query) : this.query;
+	
+	      this.packet({ type: parser.CONNECT, query: query });
+	    } else {
+	      this.packet({ type: parser.CONNECT });
+	    }
+	  }
+	};
+	
+	/**
+	 * Called upon engine `close`.
+	 *
+	 * @param {String} reason
+	 * @api private
+	 */
+	
+	Socket.prototype.onclose = function (reason) {
+	
+	  this.connected = false;
+	  this.disconnected = true;
+	  delete this.id;
+	  this.emit('disconnect', reason);
+	};
+	
+	/**
+	 * Called with socket packet.
+	 *
+	 * @param {Object} packet
+	 * @api private
+	 */
+	
+	Socket.prototype.onpacket = function (packet) {
+	  var sameNamespace = packet.nsp === this.nsp;
+	  var rootNamespaceError = packet.type === parser.ERROR && packet.nsp === '/';
+	
+	  if (!sameNamespace && !rootNamespaceError) return;
+	
+	  switch (packet.type) {
+	    case parser.CONNECT:
+	      this.onconnect();
+	      break;
+	
+	    case parser.EVENT:
+	      this.onevent(packet);
+	      break;
+	
+	    case parser.BINARY_EVENT:
+	      this.onevent(packet);
+	      break;
+	
+	    case parser.ACK:
+	      this.onack(packet);
+	      break;
+	
+	    case parser.BINARY_ACK:
+	      this.onack(packet);
+	      break;
+	
+	    case parser.DISCONNECT:
+	      this.ondisconnect();
+	      break;
+	
+	    case parser.ERROR:
+	      this.emit('error', packet.data);
+	      break;
+	  }
+	};
+	
+	/**
+	 * Called upon a server event.
+	 *
+	 * @param {Object} packet
+	 * @api private
+	 */
+	
+	Socket.prototype.onevent = function (packet) {
+	  var args = packet.data || [];
+	
+	  if (null != packet.id) {
+	
+	    args.push(this.ack(packet.id));
+	  }
+	
+	  if (this.connected) {
+	    emit.apply(this, args);
+	  } else {
+	    this.receiveBuffer.push(args);
+	  }
+	};
+	
+	/**
+	 * Produces an ack callback to emit with an event.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.ack = function (id) {
+	  var self = this;
+	  var sent = false;
+	  return function () {
+	    // prevent double callbacks
+	    if (sent) return;
+	    sent = true;
+	    var args = toArray(arguments);
+	
+	    self.packet({
+	      type: hasBin(args) ? parser.BINARY_ACK : parser.ACK,
+	      id: id,
+	      data: args
+	    });
+	  };
+	};
+	
+	/**
+	 * Called upon a server acknowlegement.
+	 *
+	 * @param {Object} packet
+	 * @api private
+	 */
+	
+	Socket.prototype.onack = function (packet) {
+	  var ack = this.acks[packet.id];
+	  if ('function' === typeof ack) {
+	
+	    ack.apply(this, packet.data);
+	    delete this.acks[packet.id];
+	  } else {}
+	};
+	
+	/**
+	 * Called upon server connect.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.onconnect = function () {
+	  this.connected = true;
+	  this.disconnected = false;
+	  this.emit('connect');
+	  this.emitBuffered();
+	};
+	
+	/**
+	 * Emit buffered events (received and emitted).
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.emitBuffered = function () {
+	  var i;
+	  for (i = 0; i < this.receiveBuffer.length; i++) {
+	    emit.apply(this, this.receiveBuffer[i]);
+	  }
+	  this.receiveBuffer = [];
+	
+	  for (i = 0; i < this.sendBuffer.length; i++) {
+	    this.packet(this.sendBuffer[i]);
+	  }
+	  this.sendBuffer = [];
+	};
+	
+	/**
+	 * Called upon server disconnect.
+	 *
+	 * @api private
+	 */
+	
+	Socket.prototype.ondisconnect = function () {
+	
+	  this.destroy();
+	  this.onclose('io server disconnect');
+	};
+	
+	/**
+	 * Called upon forced client/server side disconnections,
+	 * this method ensures the manager stops tracking us and
+	 * that reconnections don't get triggered for this.
+	 *
+	 * @api private.
+	 */
+	
+	Socket.prototype.destroy = function () {
+	  if (this.subs) {
+	    // clean subscriptions to avoid reconnections
+	    for (var i = 0; i < this.subs.length; i++) {
+	      this.subs[i].destroy();
+	    }
+	    this.subs = null;
+	  }
+	
+	  this.io.destroy(this);
+	};
+	
+	/**
+	 * Disconnects the socket manually.
+	 *
+	 * @return {Socket} self
+	 * @api public
+	 */
+	
+	Socket.prototype.close = Socket.prototype.disconnect = function () {
+	  if (this.connected) {
+	
+	    this.packet({ type: parser.DISCONNECT });
+	  }
+	
+	  // remove socket from pool
+	  this.destroy();
+	
+	  if (this.connected) {
+	    // fire events
+	    this.onclose('io client disconnect');
+	  }
+	  return this;
+	};
+	
+	/**
+	 * Sets the compress flag.
+	 *
+	 * @param {Boolean} if `true`, compresses the sending data
+	 * @return {Socket} self
+	 * @api public
+	 */
+	
+	Socket.prototype.compress = function (compress) {
+	  this.flags.compress = compress;
+	  return this;
+	};
+	
+	/**
+	 * Sets the binary flag
+	 *
+	 * @param {Boolean} whether the emitted data contains binary
+	 * @return {Socket} self
+	 * @api public
+	 */
+	
+	Socket.prototype.binary = function (binary) {
+	  this.flags.binary = binary;
+	  return this;
+	};
+
+/***/ }),
+/* 34 */
+/***/ (function(module, exports) {
+
+	module.exports = toArray
+	
+	function toArray(list, index) {
+	    var array = []
+	
+	    index = index || 0
+	
+	    for (var i = index || 0; i < list.length; i++) {
+	        array[i - index] = list[i]
+	    }
+	
+	    return array
+	}
+
+
+/***/ }),
+/* 35 */
+/***/ (function(module, exports) {
+
+	"use strict";
+	
+	/**
+	 * Module exports.
+	 */
+	
+	module.exports = on;
+	
+	/**
+	 * Helper for subscriptions.
+	 *
+	 * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`
+	 * @param {String} event name
+	 * @param {Function} callback
+	 * @api public
+	 */
+	
+	function on(obj, ev, fn) {
+	  obj.on(ev, fn);
+	  return {
+	    destroy: function destroy() {
+	      obj.removeListener(ev, fn);
+	    }
+	  };
+	}
+
+/***/ }),
+/* 36 */
+/***/ (function(module, exports) {
+
+	/**
+	 * Slice reference.
+	 */
+	
+	var slice = [].slice;
+	
+	/**
+	 * Bind `obj` to `fn`.
+	 *
+	 * @param {Object} obj
+	 * @param {Function|String} fn or string
+	 * @return {Function}
+	 * @api public
+	 */
+	
+	module.exports = function(obj, fn){
+	  if ('string' == typeof fn) fn = obj[fn];
+	  if ('function' != typeof fn) throw new Error('bind() requires a function');
+	  var args = slice.call(arguments, 2);
+	  return function(){
+	    return fn.apply(obj, args.concat(slice.call(arguments)));
+	  }
+	};
+
+
+/***/ }),
+/* 37 */
+/***/ (function(module, exports) {
+
+	
+	/**
+	 * Expose `Backoff`.
+	 */
+	
+	module.exports = Backoff;
+	
+	/**
+	 * Initialize backoff timer with `opts`.
+	 *
+	 * - `min` initial timeout in milliseconds [100]
+	 * - `max` max timeout [10000]
+	 * - `jitter` [0]
+	 * - `factor` [2]
+	 *
+	 * @param {Object} opts
+	 * @api public
+	 */
+	
+	function Backoff(opts) {
+	  opts = opts || {};
+	  this.ms = opts.min || 100;
+	  this.max = opts.max || 10000;
+	  this.factor = opts.factor || 2;
+	  this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;
+	  this.attempts = 0;
+	}
+	
+	/**
+	 * Return the backoff duration.
+	 *
+	 * @return {Number}
+	 * @api public
+	 */
+	
+	Backoff.prototype.duration = function(){
+	  var ms = this.ms * Math.pow(this.factor, this.attempts++);
+	  if (this.jitter) {
+	    var rand =  Math.random();
+	    var deviation = Math.floor(rand * this.jitter * ms);
+	    ms = (Math.floor(rand * 10) & 1) == 0  ? ms - deviation : ms + deviation;
+	  }
+	  return Math.min(ms, this.max) | 0;
+	};
+	
+	/**
+	 * Reset the number of attempts.
+	 *
+	 * @api public
+	 */
+	
+	Backoff.prototype.reset = function(){
+	  this.attempts = 0;
+	};
+	
+	/**
+	 * Set the minimum duration
+	 *
+	 * @api public
+	 */
+	
+	Backoff.prototype.setMin = function(min){
+	  this.ms = min;
+	};
+	
+	/**
+	 * Set the maximum duration
+	 *
+	 * @api public
+	 */
+	
+	Backoff.prototype.setMax = function(max){
+	  this.max = max;
+	};
+	
+	/**
+	 * Set the jitter
+	 *
+	 * @api public
+	 */
+	
+	Backoff.prototype.setJitter = function(jitter){
+	  this.jitter = jitter;
+	};
+	
+
+
+/***/ })
+/******/ ])
+});
+;
+//# sourceMappingURL=socket.io.slim.dev.js.map
\ No newline at end of file
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new file mode 100755
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`io('http://localhost/a');`\n *   `io('http://localhost/b');`\n *\n * We reuse the existing instance based on same scheme/port/host,\n * and we initialize sockets for each namespace.\n *\n * @api public\n */\n\nfunction lookup (uri, opts) {\n  if (typeof uri === 'object') {\n    opts = uri;\n    uri = undefined;\n  }\n\n  opts = opts || {};\n\n  var parsed = url(uri);\n  var source = parsed.source;\n  var id = parsed.id;\n  var path = parsed.path;\n  var sameNamespace = cache[id] && path in cache[id].nsps;\n  var newConnection = opts.forceNew || opts['force new connection'] ||\n                      false === opts.multiplex || sameNamespace;\n\n  var io;\n\n  if (newConnection) {\n\n    io = Manager(source, opts);\n  } else {\n    if (!cache[id]) {\n\n      cache[id] = Manager(source, opts);\n    }\n    io = cache[id];\n  }\n  if (parsed.query && !opts.query) {\n    opts.query = parsed.query;\n  }\n  return io.socket(parsed.path, opts);\n}\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nexports.protocol = parser.protocol;\n\n/**\n * `connect`.\n *\n * @param {String} uri\n * @api public\n */\n\nexports.connect = lookup;\n\n/**\n * Expose constructors for standalone build.\n *\n * @api public\n */\n\nexports.Manager = require('./manager');\nexports.Socket = require('./socket');\n\n\n\n// WEBPACK FOOTER //\n// ./lib/index.js","\n/**\n * Module dependencies.\n */\n\nvar parseuri = require('parseuri');\nvar debug = require('debug')('socket.io-client:url');\n\n/**\n * Module exports.\n */\n\nmodule.exports = url;\n\n/**\n * URL parser.\n *\n * @param {String} url\n * @param {Object} An object meant to mimic window.location.\n *                 Defaults to window.location.\n * @api public\n */\n\nfunction url (uri, loc) {\n  var obj = uri;\n\n  // default to window.location\n  loc = loc || (typeof location !== 'undefined' && location);\n  if (null == uri) uri = loc.protocol + '//' + loc.host;\n\n  // relative path support\n  if ('string' === typeof uri) {\n    if ('/' === uri.charAt(0)) {\n      if ('/' === uri.charAt(1)) {\n        uri = loc.protocol + uri;\n      } else {\n        uri = loc.host + uri;\n      }\n    }\n\n    if (!/^(https?|wss?):\\/\\//.test(uri)) {\n\n      if ('undefined' !== typeof loc) {\n        uri = loc.protocol + '//' + uri;\n      } else {\n        uri = 'https://' + uri;\n      }\n    }\n\n    // parse\n\n    obj = parseuri(uri);\n  }\n\n  // make sure we treat `localhost:80` and `localhost` equally\n  if (!obj.port) {\n    if (/^(http|ws)$/.test(obj.protocol)) {\n      obj.port = '80';\n    } else if (/^(http|ws)s$/.test(obj.protocol)) {\n      obj.port = '443';\n    }\n  }\n\n  obj.path = obj.path || '/';\n\n  var ipv6 = obj.host.indexOf(':') !== -1;\n  var host = ipv6 ? '[' + obj.host + ']' : obj.host;\n\n  // define unique id\n  obj.id = obj.protocol + '://' + host + ':' + obj.port;\n  // define href\n  obj.href = obj.protocol + '://' + host + (loc && loc.port === obj.port ? '' : (':' + obj.port));\n\n  return obj;\n}\n\n\n\n// WEBPACK FOOTER //\n// ./lib/url.js","/**\r\n * Parses an URI\r\n *\r\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\r\n * @api private\r\n */\r\n\r\nvar re = /^(?:(?![^:@]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\r\n\r\nvar parts = [\r\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\r\n];\r\n\r\nmodule.exports = function parseuri(str) {\r\n    var src = str,\r\n        b = str.indexOf('['),\r\n        e = str.indexOf(']');\r\n\r\n    if (b != -1 && e != -1) {\r\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\r\n    }\r\n\r\n    var m = re.exec(str || ''),\r\n        uri = {},\r\n        i = 14;\r\n\r\n    while (i--) {\r\n        uri[parts[i]] = m[i] || '';\r\n    }\r\n\r\n    if (b != -1 && e != -1) {\r\n        uri.source = src;\r\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\r\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\r\n        uri.ipv6uri = true;\r\n    }\r\n\r\n    return uri;\r\n};\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/parseuri/index.js\n// module id = 2\n// module chunks = 0","\nmodule.exports = function () { return function () {}; };\n\n\n\n// WEBPACK FOOTER //\n// ./support/noop.js","\n/**\n * Module dependencies.\n */\n\nvar debug = require('debug')('socket.io-parser');\nvar Emitter = require('component-emitter');\nvar binary = require('./binary');\nvar isArray = require('isarray');\nvar isBuf = require('./is-buffer');\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nexports.protocol = 4;\n\n/**\n * Packet types.\n *\n * @api public\n */\n\nexports.types = [\n  'CONNECT',\n  'DISCONNECT',\n  'EVENT',\n  'ACK',\n  'ERROR',\n  'BINARY_EVENT',\n  'BINARY_ACK'\n];\n\n/**\n * Packet type `connect`.\n *\n * @api public\n */\n\nexports.CONNECT = 0;\n\n/**\n * Packet type `disconnect`.\n *\n * @api public\n */\n\nexports.DISCONNECT = 1;\n\n/**\n * Packet type `event`.\n *\n * @api public\n */\n\nexports.EVENT = 2;\n\n/**\n * Packet type `ack`.\n *\n * @api public\n */\n\nexports.ACK = 3;\n\n/**\n * Packet type `error`.\n *\n * @api public\n */\n\nexports.ERROR = 4;\n\n/**\n * Packet type 'binary event'\n *\n * @api public\n */\n\nexports.BINARY_EVENT = 5;\n\n/**\n * Packet type `binary ack`. For acks with binary arguments.\n *\n * @api public\n */\n\nexports.BINARY_ACK = 6;\n\n/**\n * Encoder constructor.\n *\n * @api public\n */\n\nexports.Encoder = Encoder;\n\n/**\n * Decoder constructor.\n *\n * @api public\n */\n\nexports.Decoder = Decoder;\n\n/**\n * A socket.io Encoder instance\n *\n * @api public\n */\n\nfunction Encoder() {}\n\nvar ERROR_PACKET = exports.ERROR + '\"encode error\"';\n\n/**\n * Encode a packet as a single string if non-binary, or as a\n * buffer sequence, depending on packet type.\n *\n * @param {Object} obj - packet object\n * @param {Function} callback - function to handle encodings (likely engine.write)\n * @return Calls callback with Array of encodings\n * @api public\n */\n\nEncoder.prototype.encode = function(obj, callback){\n\n\n  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {\n    encodeAsBinary(obj, callback);\n  } else {\n    var encoding = encodeAsString(obj);\n    callback([encoding]);\n  }\n};\n\n/**\n * Encode packet as string.\n *\n * @param {Object} packet\n * @return {String} encoded\n * @api private\n */\n\nfunction encodeAsString(obj) {\n\n  // first is type\n  var str = '' + obj.type;\n\n  // attachments if we have them\n  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {\n    str += obj.attachments + '-';\n  }\n\n  // if we have a namespace other than `/`\n  // we append it followed by a comma `,`\n  if (obj.nsp && '/' !== obj.nsp) {\n    str += obj.nsp + ',';\n  }\n\n  // immediately followed by the id\n  if (null != obj.id) {\n    str += obj.id;\n  }\n\n  // json data\n  if (null != obj.data) {\n    var payload = tryStringify(obj.data);\n    if (payload !== false) {\n      str += payload;\n    } else {\n      return ERROR_PACKET;\n    }\n  }\n\n\n  return str;\n}\n\nfunction tryStringify(str) {\n  try {\n    return JSON.stringify(str);\n  } catch(e){\n    return false;\n  }\n}\n\n/**\n * Encode packet as 'buffer sequence' by removing blobs, and\n * deconstructing packet into object with placeholders and\n * a list of buffers.\n *\n * @param {Object} packet\n * @return {Buffer} encoded\n * @api private\n */\n\nfunction encodeAsBinary(obj, callback) {\n\n  function writeEncoding(bloblessData) {\n    var deconstruction = binary.deconstructPacket(bloblessData);\n    var pack = encodeAsString(deconstruction.packet);\n    var buffers = deconstruction.buffers;\n\n    buffers.unshift(pack); // add packet info to beginning of data list\n    callback(buffers); // write all the buffers\n  }\n\n  binary.removeBlobs(obj, writeEncoding);\n}\n\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n * @api public\n */\n\nfunction Decoder() {\n  this.reconstructor = null;\n}\n\n/**\n * Mix in `Emitter` with Decoder.\n */\n\nEmitter(Decoder.prototype);\n\n/**\n * Decodes an encoded packet string into packet JSON.\n *\n * @param {String} obj - encoded packet\n * @return {Object} packet\n * @api public\n */\n\nDecoder.prototype.add = function(obj) {\n  var packet;\n  if (typeof obj === 'string') {\n    packet = decodeString(obj);\n    if (exports.BINARY_EVENT === packet.type || exports.BINARY_ACK === packet.type) { // binary packet's json\n      this.reconstructor = new BinaryReconstructor(packet);\n\n      // no attachments, labeled binary but no binary data to follow\n      if (this.reconstructor.reconPack.attachments === 0) {\n        this.emit('decoded', packet);\n      }\n    } else { // non-binary full packet\n      this.emit('decoded', packet);\n    }\n  } else if (isBuf(obj) || obj.base64) { // raw binary data\n    if (!this.reconstructor) {\n      throw new Error('got binary data when not reconstructing a packet');\n    } else {\n      packet = this.reconstructor.takeBinaryData(obj);\n      if (packet) { // received final buffer\n        this.reconstructor = null;\n        this.emit('decoded', packet);\n      }\n    }\n  } else {\n    throw new Error('Unknown type: ' + obj);\n  }\n};\n\n/**\n * Decode a packet String (JSON data)\n *\n * @param {String} str\n * @return {Object} packet\n * @api private\n */\n\nfunction decodeString(str) {\n  var i = 0;\n  // look up type\n  var p = {\n    type: Number(str.charAt(0))\n  };\n\n  if (null == exports.types[p.type]) {\n    return error('unknown packet type ' + p.type);\n  }\n\n  // look up attachments if type binary\n  if (exports.BINARY_EVENT === p.type || exports.BINARY_ACK === p.type) {\n    var buf = '';\n    while (str.charAt(++i) !== '-') {\n      buf += str.charAt(i);\n      if (i == str.length) break;\n    }\n    if (buf != Number(buf) || str.charAt(i) !== '-') {\n      throw new Error('Illegal attachments');\n    }\n    p.attachments = Number(buf);\n  }\n\n  // look up namespace (if any)\n  if ('/' === str.charAt(i + 1)) {\n    p.nsp = '';\n    while (++i) {\n      var c = str.charAt(i);\n      if (',' === c) break;\n      p.nsp += c;\n      if (i === str.length) break;\n    }\n  } else {\n    p.nsp = '/';\n  }\n\n  // look up id\n  var next = str.charAt(i + 1);\n  if ('' !== next && Number(next) == next) {\n    p.id = '';\n    while (++i) {\n      var c = str.charAt(i);\n      if (null == c || Number(c) != c) {\n        --i;\n        break;\n      }\n      p.id += str.charAt(i);\n      if (i === str.length) break;\n    }\n    p.id = Number(p.id);\n  }\n\n  // look up json data\n  if (str.charAt(++i)) {\n    var payload = tryParse(str.substr(i));\n    var isPayloadValid = payload !== false && (p.type === exports.ERROR || isArray(payload));\n    if (isPayloadValid) {\n      p.data = payload;\n    } else {\n      return error('invalid payload');\n    }\n  }\n\n\n  return p;\n}\n\nfunction tryParse(str) {\n  try {\n    return JSON.parse(str);\n  } catch(e){\n    return false;\n  }\n}\n\n/**\n * Deallocates a parser's resources\n *\n * @api public\n */\n\nDecoder.prototype.destroy = function() {\n  if (this.reconstructor) {\n    this.reconstructor.finishedReconstruction();\n  }\n};\n\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n * @api private\n */\n\nfunction BinaryReconstructor(packet) {\n  this.reconPack = packet;\n  this.buffers = [];\n}\n\n/**\n * Method to be called when binary data received from connection\n * after a BINARY_EVENT packet.\n *\n * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n * @return {null | Object} returns null if more binary data is expected or\n *   a reconstructed packet object if all buffers have been received.\n * @api private\n */\n\nBinaryReconstructor.prototype.takeBinaryData = function(binData) {\n  this.buffers.push(binData);\n  if (this.buffers.length === this.reconPack.attachments) { // done with buffer list\n    var packet = binary.reconstructPacket(this.reconPack, this.buffers);\n    this.finishedReconstruction();\n    return packet;\n  }\n  return null;\n};\n\n/**\n * Cleans up binary packet reconstruction variables.\n *\n * @api private\n */\n\nBinaryReconstructor.prototype.finishedReconstruction = function() {\n  this.reconPack = null;\n  this.buffers = [];\n};\n\nfunction error(msg) {\n  return {\n    type: exports.ERROR,\n    data: 'parser error: ' + msg\n  };\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/socket.io-parser/index.js\n// module id = 4\n// module chunks = 0","\r\n/**\r\n * Expose `Emitter`.\r\n */\r\n\r\nif (typeof module !== 'undefined') {\r\n  module.exports = Emitter;\r\n}\r\n\r\n/**\r\n * Initialize a new `Emitter`.\r\n *\r\n * @api public\r\n */\r\n\r\nfunction Emitter(obj) {\r\n  if (obj) return mixin(obj);\r\n};\r\n\r\n/**\r\n * Mixin the emitter properties.\r\n *\r\n * @param {Object} obj\r\n * @return {Object}\r\n * @api private\r\n */\r\n\r\nfunction mixin(obj) {\r\n  for (var key in Emitter.prototype) {\r\n    obj[key] = Emitter.prototype[key];\r\n  }\r\n  return obj;\r\n}\r\n\r\n/**\r\n * Listen on the given `event` with `fn`.\r\n *\r\n * @param {String} event\r\n * @param {Function} fn\r\n * @return {Emitter}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.on =\r\nEmitter.prototype.addEventListener = function(event, fn){\r\n  this._callbacks = this._callbacks || {};\r\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\r\n    .push(fn);\r\n  return this;\r\n};\r\n\r\n/**\r\n * Adds an `event` listener that will be invoked a single\r\n * time then automatically removed.\r\n *\r\n * @param {String} event\r\n * @param {Function} fn\r\n * @return {Emitter}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.once = function(event, fn){\r\n  function on() {\r\n    this.off(event, on);\r\n    fn.apply(this, arguments);\r\n  }\r\n\r\n  on.fn = fn;\r\n  this.on(event, on);\r\n  return this;\r\n};\r\n\r\n/**\r\n * Remove the given callback for `event` or all\r\n * registered callbacks.\r\n *\r\n * @param {String} event\r\n * @param {Function} fn\r\n * @return {Emitter}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.off =\r\nEmitter.prototype.removeListener =\r\nEmitter.prototype.removeAllListeners =\r\nEmitter.prototype.removeEventListener = function(event, fn){\r\n  this._callbacks = this._callbacks || {};\r\n\r\n  // all\r\n  if (0 == arguments.length) {\r\n    this._callbacks = {};\r\n    return this;\r\n  }\r\n\r\n  // specific event\r\n  var callbacks = this._callbacks['$' + event];\r\n  if (!callbacks) return this;\r\n\r\n  // remove all handlers\r\n  if (1 == arguments.length) {\r\n    delete this._callbacks['$' + event];\r\n    return this;\r\n  }\r\n\r\n  // remove specific handler\r\n  var cb;\r\n  for (var i = 0; i < callbacks.length; i++) {\r\n    cb = callbacks[i];\r\n    if (cb === fn || cb.fn === fn) {\r\n      callbacks.splice(i, 1);\r\n      break;\r\n    }\r\n  }\r\n  return this;\r\n};\r\n\r\n/**\r\n * Emit `event` with the given args.\r\n *\r\n * @param {String} event\r\n * @param {Mixed} ...\r\n * @return {Emitter}\r\n */\r\n\r\nEmitter.prototype.emit = function(event){\r\n  this._callbacks = this._callbacks || {};\r\n  var args = [].slice.call(arguments, 1)\r\n    , callbacks = this._callbacks['$' + event];\r\n\r\n  if (callbacks) {\r\n    callbacks = callbacks.slice(0);\r\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\r\n      callbacks[i].apply(this, args);\r\n    }\r\n  }\r\n\r\n  return this;\r\n};\r\n\r\n/**\r\n * Return array of callbacks for `event`.\r\n *\r\n * @param {String} event\r\n * @return {Array}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.listeners = function(event){\r\n  this._callbacks = this._callbacks || {};\r\n  return this._callbacks['$' + event] || [];\r\n};\r\n\r\n/**\r\n * Check if this emitter has `event` handlers.\r\n *\r\n * @param {String} event\r\n * @return {Boolean}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.hasListeners = function(event){\r\n  return !! this.listeners(event).length;\r\n};\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/component-emitter/index.js\n// module id = 5\n// module chunks = 0","/*global Blob,File*/\n\n/**\n * Module requirements\n */\n\nvar isArray = require('isarray');\nvar isBuf = require('./is-buffer');\nvar toString = Object.prototype.toString;\nvar withNativeBlob = typeof Blob === 'function' || (typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]');\nvar withNativeFile = typeof File === 'function' || (typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]');\n\n/**\n * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder.\n * Anything with blobs or files should be fed through removeBlobs before coming\n * here.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @api public\n */\n\nexports.deconstructPacket = function(packet) {\n  var buffers = [];\n  var packetData = packet.data;\n  var pack = packet;\n  pack.data = _deconstructPacket(packetData, buffers);\n  pack.attachments = buffers.length; // number of binary 'attachments'\n  return {packet: pack, buffers: buffers};\n};\n\nfunction _deconstructPacket(data, buffers) {\n  if (!data) return data;\n\n  if (isBuf(data)) {\n    var placeholder = { _placeholder: true, num: buffers.length };\n    buffers.push(data);\n    return placeholder;\n  } else if (isArray(data)) {\n    var newData = new Array(data.length);\n    for (var i = 0; i < data.length; i++) {\n      newData[i] = _deconstructPacket(data[i], buffers);\n    }\n    return newData;\n  } else if (typeof data === 'object' && !(data instanceof Date)) {\n    var newData = {};\n    for (var key in data) {\n      newData[key] = _deconstructPacket(data[key], buffers);\n    }\n    return newData;\n  }\n  return data;\n}\n\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @api public\n */\n\nexports.reconstructPacket = function(packet, buffers) {\n  packet.data = _reconstructPacket(packet.data, buffers);\n  packet.attachments = undefined; // no longer useful\n  return packet;\n};\n\nfunction _reconstructPacket(data, buffers) {\n  if (!data) return data;\n\n  if (data && data._placeholder) {\n    return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n  } else if (isArray(data)) {\n    for (var i = 0; i < data.length; i++) {\n      data[i] = _reconstructPacket(data[i], buffers);\n    }\n  } else if (typeof data === 'object') {\n    for (var key in data) {\n      data[key] = _reconstructPacket(data[key], buffers);\n    }\n  }\n\n  return data;\n}\n\n/**\n * Asynchronously removes Blobs or Files from data via\n * FileReader's readAsArrayBuffer method. Used before encoding\n * data as msgpack. Calls callback with the blobless data.\n *\n * @param {Object} data\n * @param {Function} callback\n * @api private\n */\n\nexports.removeBlobs = function(data, callback) {\n  function _removeBlobs(obj, curKey, containingObject) {\n    if (!obj) return obj;\n\n    // convert any blob\n    if ((withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File)) {\n      pendingBlobs++;\n\n      // async filereader\n      var fileReader = new FileReader();\n      fileReader.onload = function() { // this.result == arraybuffer\n        if (containingObject) {\n          containingObject[curKey] = this.result;\n        }\n        else {\n          bloblessData = this.result;\n        }\n\n        // if nothing pending its callback time\n        if(! --pendingBlobs) {\n          callback(bloblessData);\n        }\n      };\n\n      fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer\n    } else if (isArray(obj)) { // handle array\n      for (var i = 0; i < obj.length; i++) {\n        _removeBlobs(obj[i], i, obj);\n      }\n    } else if (typeof obj === 'object' && !isBuf(obj)) { // and object\n      for (var key in obj) {\n        _removeBlobs(obj[key], key, obj);\n      }\n    }\n  }\n\n  var pendingBlobs = 0;\n  var bloblessData = data;\n  _removeBlobs(bloblessData);\n  if (!pendingBlobs) {\n    callback(bloblessData);\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/socket.io-parser/binary.js\n// module id = 6\n// module chunks = 0","var toString = {}.toString;\n\nmodule.exports = Array.isArray || function (arr) {\n  return toString.call(arr) == '[object Array]';\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/isarray/index.js\n// module id = 7\n// module chunks = 0","\nmodule.exports = isBuf;\n\nvar withNativeBuffer = typeof Buffer === 'function' && typeof Buffer.isBuffer === 'function';\nvar withNativeArrayBuffer = typeof ArrayBuffer === 'function';\n\nvar isView = function (obj) {\n  return typeof ArrayBuffer.isView === 'function' ? ArrayBuffer.isView(obj) : (obj.buffer instanceof ArrayBuffer);\n};\n\n/**\n * Returns true if obj is a buffer or an arraybuffer.\n *\n * @api private\n */\n\nfunction isBuf(obj) {\n  return (withNativeBuffer && Buffer.isBuffer(obj)) ||\n          (withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj)));\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/socket.io-parser/is-buffer.js\n// module id = 8\n// module chunks = 0","\n/**\n * Module dependencies.\n */\n\nvar eio = require('engine.io-client');\nvar Socket = require('./socket');\nvar Emitter = require('component-emitter');\nvar parser = require('socket.io-parser');\nvar on = require('./on');\nvar bind = require('component-bind');\nvar debug = require('debug')('socket.io-client:manager');\nvar indexOf = require('indexof');\nvar Backoff = require('backo2');\n\n/**\n * IE6+ hasOwnProperty\n */\n\nvar has = Object.prototype.hasOwnProperty;\n\n/**\n * Module exports\n */\n\nmodule.exports = Manager;\n\n/**\n * `Manager` constructor.\n *\n * @param {String} engine instance or engine uri/opts\n * @param {Object} options\n * @api public\n */\n\nfunction Manager (uri, opts) {\n  if (!(this instanceof Manager)) return new Manager(uri, opts);\n  if (uri && ('object' === typeof uri)) {\n    opts = uri;\n    uri = undefined;\n  }\n  opts = opts || {};\n\n  opts.path = opts.path || '/socket.io';\n  this.nsps = {};\n  this.subs = [];\n  this.opts = opts;\n  this.reconnection(opts.reconnection !== false);\n  this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n  this.reconnectionDelay(opts.reconnectionDelay || 1000);\n  this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n  this.randomizationFactor(opts.randomizationFactor || 0.5);\n  this.backoff = new Backoff({\n    min: this.reconnectionDelay(),\n    max: this.reconnectionDelayMax(),\n    jitter: this.randomizationFactor()\n  });\n  this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n  this.readyState = 'closed';\n  this.uri = uri;\n  this.connecting = [];\n  this.lastPing = null;\n  this.encoding = false;\n  this.packetBuffer = [];\n  var _parser = opts.parser || parser;\n  this.encoder = new _parser.Encoder();\n  this.decoder = new _parser.Decoder();\n  this.autoConnect = opts.autoConnect !== false;\n  if (this.autoConnect) this.open();\n}\n\n/**\n * Propagate given event to sockets and emit on `this`\n *\n * @api private\n */\n\nManager.prototype.emitAll = function () {\n  this.emit.apply(this, arguments);\n  for (var nsp in this.nsps) {\n    if (has.call(this.nsps, nsp)) {\n      this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);\n    }\n  }\n};\n\n/**\n * Update `socket.id` of all sockets\n *\n * @api private\n */\n\nManager.prototype.updateSocketIds = function () {\n  for (var nsp in this.nsps) {\n    if (has.call(this.nsps, nsp)) {\n      this.nsps[nsp].id = this.generateId(nsp);\n    }\n  }\n};\n\n/**\n * generate `socket.id` for the given `nsp`\n *\n * @param {String} nsp\n * @return {String}\n * @api private\n */\n\nManager.prototype.generateId = function (nsp) {\n  return (nsp === '/' ? '' : (nsp + '#')) + this.engine.id;\n};\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Manager.prototype);\n\n/**\n * Sets the `reconnection` config.\n *\n * @param {Boolean} true/false if it should automatically reconnect\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnection = function (v) {\n  if (!arguments.length) return this._reconnection;\n  this._reconnection = !!v;\n  return this;\n};\n\n/**\n * Sets the reconnection attempts config.\n *\n * @param {Number} max reconnection attempts before giving up\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionAttempts = function (v) {\n  if (!arguments.length) return this._reconnectionAttempts;\n  this._reconnectionAttempts = v;\n  return this;\n};\n\n/**\n * Sets the delay between reconnections.\n *\n * @param {Number} delay\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionDelay = function (v) {\n  if (!arguments.length) return this._reconnectionDelay;\n  this._reconnectionDelay = v;\n  this.backoff && this.backoff.setMin(v);\n  return this;\n};\n\nManager.prototype.randomizationFactor = function (v) {\n  if (!arguments.length) return this._randomizationFactor;\n  this._randomizationFactor = v;\n  this.backoff && this.backoff.setJitter(v);\n  return this;\n};\n\n/**\n * Sets the maximum delay between reconnections.\n *\n * @param {Number} delay\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionDelayMax = function (v) {\n  if (!arguments.length) return this._reconnectionDelayMax;\n  this._reconnectionDelayMax = v;\n  this.backoff && this.backoff.setMax(v);\n  return this;\n};\n\n/**\n * Sets the connection timeout. `false` to disable\n *\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.timeout = function (v) {\n  if (!arguments.length) return this._timeout;\n  this._timeout = v;\n  return this;\n};\n\n/**\n * Starts trying to reconnect if reconnection is enabled and we have not\n * started reconnecting yet\n *\n * @api private\n */\n\nManager.prototype.maybeReconnectOnOpen = function () {\n  // Only try to reconnect if it's the first time we're connecting\n  if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {\n    // keeps reconnection from firing twice for the same reconnection loop\n    this.reconnect();\n  }\n};\n\n/**\n * Sets the current transport `socket`.\n *\n * @param {Function} optional, callback\n * @return {Manager} self\n * @api public\n */\n\nManager.prototype.open =\nManager.prototype.connect = function (fn, opts) {\n\n  if (~this.readyState.indexOf('open')) return this;\n\n\n  this.engine = eio(this.uri, this.opts);\n  var socket = this.engine;\n  var self = this;\n  this.readyState = 'opening';\n  this.skipReconnect = false;\n\n  // emit `open`\n  var openSub = on(socket, 'open', function () {\n    self.onopen();\n    fn && fn();\n  });\n\n  // emit `connect_error`\n  var errorSub = on(socket, 'error', function (data) {\n\n    self.cleanup();\n    self.readyState = 'closed';\n    self.emitAll('connect_error', data);\n    if (fn) {\n      var err = new Error('Connection error');\n      err.data = data;\n      fn(err);\n    } else {\n      // Only do this if there is no fn to handle the error\n      self.maybeReconnectOnOpen();\n    }\n  });\n\n  // emit `connect_timeout`\n  if (false !== this._timeout) {\n    var timeout = this._timeout;\n\n\n    // set timer\n    var timer = setTimeout(function () {\n\n      openSub.destroy();\n      socket.close();\n      socket.emit('error', 'timeout');\n      self.emitAll('connect_timeout', timeout);\n    }, timeout);\n\n    this.subs.push({\n      destroy: function () {\n        clearTimeout(timer);\n      }\n    });\n  }\n\n  this.subs.push(openSub);\n  this.subs.push(errorSub);\n\n  return this;\n};\n\n/**\n * Called upon transport open.\n *\n * @api private\n */\n\nManager.prototype.onopen = function () {\n\n\n  // clear old subs\n  this.cleanup();\n\n  // mark as open\n  this.readyState = 'open';\n  this.emit('open');\n\n  // add new subs\n  var socket = this.engine;\n  this.subs.push(on(socket, 'data', bind(this, 'ondata')));\n  this.subs.push(on(socket, 'ping', bind(this, 'onping')));\n  this.subs.push(on(socket, 'pong', bind(this, 'onpong')));\n  this.subs.push(on(socket, 'error', bind(this, 'onerror')));\n  this.subs.push(on(socket, 'close', bind(this, 'onclose')));\n  this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));\n};\n\n/**\n * Called upon a ping.\n *\n * @api private\n */\n\nManager.prototype.onping = function () {\n  this.lastPing = new Date();\n  this.emitAll('ping');\n};\n\n/**\n * Called upon a packet.\n *\n * @api private\n */\n\nManager.prototype.onpong = function () {\n  this.emitAll('pong', new Date() - this.lastPing);\n};\n\n/**\n * Called with data.\n *\n * @api private\n */\n\nManager.prototype.ondata = function (data) {\n  this.decoder.add(data);\n};\n\n/**\n * Called when parser fully decodes a packet.\n *\n * @api private\n */\n\nManager.prototype.ondecoded = function (packet) {\n  this.emit('packet', packet);\n};\n\n/**\n * Called upon socket error.\n *\n * @api private\n */\n\nManager.prototype.onerror = function (err) {\n\n  this.emitAll('error', err);\n};\n\n/**\n * Creates a new socket for the given `nsp`.\n *\n * @return {Socket}\n * @api public\n */\n\nManager.prototype.socket = function (nsp, opts) {\n  var socket = this.nsps[nsp];\n  if (!socket) {\n    socket = new Socket(this, nsp, opts);\n    this.nsps[nsp] = socket;\n    var self = this;\n    socket.on('connecting', onConnecting);\n    socket.on('connect', function () {\n      socket.id = self.generateId(nsp);\n    });\n\n    if (this.autoConnect) {\n      // manually call here since connecting event is fired before listening\n      onConnecting();\n    }\n  }\n\n  function onConnecting () {\n    if (!~indexOf(self.connecting, socket)) {\n      self.connecting.push(socket);\n    }\n  }\n\n  return socket;\n};\n\n/**\n * Called upon a socket close.\n *\n * @param {Socket} socket\n */\n\nManager.prototype.destroy = function (socket) {\n  var index = indexOf(this.connecting, socket);\n  if (~index) this.connecting.splice(index, 1);\n  if (this.connecting.length) return;\n\n  this.close();\n};\n\n/**\n * Writes a packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nManager.prototype.packet = function (packet) {\n\n  var self = this;\n  if (packet.query && packet.type === 0) packet.nsp += '?' + packet.query;\n\n  if (!self.encoding) {\n    // encode, then write to engine with result\n    self.encoding = true;\n    this.encoder.encode(packet, function (encodedPackets) {\n      for (var i = 0; i < encodedPackets.length; i++) {\n        self.engine.write(encodedPackets[i], packet.options);\n      }\n      self.encoding = false;\n      self.processPacketQueue();\n    });\n  } else { // add packet to the queue\n    self.packetBuffer.push(packet);\n  }\n};\n\n/**\n * If packet buffer is non-empty, begins encoding the\n * next packet in line.\n *\n * @api private\n */\n\nManager.prototype.processPacketQueue = function () {\n  if (this.packetBuffer.length > 0 && !this.encoding) {\n    var pack = this.packetBuffer.shift();\n    this.packet(pack);\n  }\n};\n\n/**\n * Clean up transport subscriptions and packet buffer.\n *\n * @api private\n */\n\nManager.prototype.cleanup = function () {\n\n\n  var subsLength = this.subs.length;\n  for (var i = 0; i < subsLength; i++) {\n    var sub = this.subs.shift();\n    sub.destroy();\n  }\n\n  this.packetBuffer = [];\n  this.encoding = false;\n  this.lastPing = null;\n\n  this.decoder.destroy();\n};\n\n/**\n * Close the current socket.\n *\n * @api private\n */\n\nManager.prototype.close =\nManager.prototype.disconnect = function () {\n\n  this.skipReconnect = true;\n  this.reconnecting = false;\n  if ('opening' === this.readyState) {\n    // `onclose` will not fire because\n    // an open event never happened\n    this.cleanup();\n  }\n  this.backoff.reset();\n  this.readyState = 'closed';\n  if (this.engine) this.engine.close();\n};\n\n/**\n * Called upon engine close.\n *\n * @api private\n */\n\nManager.prototype.onclose = function (reason) {\n\n\n  this.cleanup();\n  this.backoff.reset();\n  this.readyState = 'closed';\n  this.emit('close', reason);\n\n  if (this._reconnection && !this.skipReconnect) {\n    this.reconnect();\n  }\n};\n\n/**\n * Attempt a reconnection.\n *\n * @api private\n */\n\nManager.prototype.reconnect = function () {\n  if (this.reconnecting || this.skipReconnect) return this;\n\n  var self = this;\n\n  if (this.backoff.attempts >= this._reconnectionAttempts) {\n\n    this.backoff.reset();\n    this.emitAll('reconnect_failed');\n    this.reconnecting = false;\n  } else {\n    var delay = this.backoff.duration();\n\n\n    this.reconnecting = true;\n    var timer = setTimeout(function () {\n      if (self.skipReconnect) return;\n\n\n      self.emitAll('reconnect_attempt', self.backoff.attempts);\n      self.emitAll('reconnecting', self.backoff.attempts);\n\n      // check again for the case socket closed in above events\n      if (self.skipReconnect) return;\n\n      self.open(function (err) {\n        if (err) {\n\n          self.reconnecting = false;\n          self.reconnect();\n          self.emitAll('reconnect_error', err.data);\n        } else {\n\n          self.onreconnect();\n        }\n      });\n    }, delay);\n\n    this.subs.push({\n      destroy: function () {\n        clearTimeout(timer);\n      }\n    });\n  }\n};\n\n/**\n * Called upon successful reconnect.\n *\n * @api private\n */\n\nManager.prototype.onreconnect = function () {\n  var attempt = this.backoff.attempts;\n  this.reconnecting = false;\n  this.backoff.reset();\n  this.updateSocketIds();\n  this.emitAll('reconnect', attempt);\n};\n\n\n\n// WEBPACK FOOTER //\n// ./lib/manager.js","\nmodule.exports = require('./socket');\n\n/**\n * Exports parser\n *\n * @api public\n *\n */\nmodule.exports.parser = require('engine.io-parser');\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/index.js\n// module id = 10\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar transports = require('./transports/index');\nvar Emitter = require('component-emitter');\nvar debug = require('debug')('engine.io-client:socket');\nvar index = require('indexof');\nvar parser = require('engine.io-parser');\nvar parseuri = require('parseuri');\nvar parseqs = require('parseqs');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Socket;\n\n/**\n * Socket constructor.\n *\n * @param {String|Object} uri or options\n * @param {Object} options\n * @api public\n */\n\nfunction Socket (uri, opts) {\n  if (!(this instanceof Socket)) return new Socket(uri, opts);\n\n  opts = opts || {};\n\n  if (uri && 'object' === typeof uri) {\n    opts = uri;\n    uri = null;\n  }\n\n  if (uri) {\n    uri = parseuri(uri);\n    opts.hostname = uri.host;\n    opts.secure = uri.protocol === 'https' || uri.protocol === 'wss';\n    opts.port = uri.port;\n    if (uri.query) opts.query = uri.query;\n  } else if (opts.host) {\n    opts.hostname = parseuri(opts.host).host;\n  }\n\n  this.secure = null != opts.secure ? opts.secure\n    : (typeof location !== 'undefined' && 'https:' === location.protocol);\n\n  if (opts.hostname && !opts.port) {\n    // if no port is specified manually, use the protocol default\n    opts.port = this.secure ? '443' : '80';\n  }\n\n  this.agent = opts.agent || false;\n  this.hostname = opts.hostname ||\n    (typeof location !== 'undefined' ? location.hostname : 'localhost');\n  this.port = opts.port || (typeof location !== 'undefined' && location.port\n      ? location.port\n      : (this.secure ? 443 : 80));\n  this.query = opts.query || {};\n  if ('string' === typeof this.query) this.query = parseqs.decode(this.query);\n  this.upgrade = false !== opts.upgrade;\n  this.path = (opts.path || '/engine.io').replace(/\\/$/, '') + '/';\n  this.forceJSONP = !!opts.forceJSONP;\n  this.jsonp = false !== opts.jsonp;\n  this.forceBase64 = !!opts.forceBase64;\n  this.enablesXDR = !!opts.enablesXDR;\n  this.timestampParam = opts.timestampParam || 't';\n  this.timestampRequests = opts.timestampRequests;\n  this.transports = opts.transports || ['polling', 'websocket'];\n  this.transportOptions = opts.transportOptions || {};\n  this.readyState = '';\n  this.writeBuffer = [];\n  this.prevBufferLen = 0;\n  this.policyPort = opts.policyPort || 843;\n  this.rememberUpgrade = opts.rememberUpgrade || false;\n  this.binaryType = null;\n  this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;\n  this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || {}) : false;\n\n  if (true === this.perMessageDeflate) this.perMessageDeflate = {};\n  if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) {\n    this.perMessageDeflate.threshold = 1024;\n  }\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx || null;\n  this.key = opts.key || null;\n  this.passphrase = opts.passphrase || null;\n  this.cert = opts.cert || null;\n  this.ca = opts.ca || null;\n  this.ciphers = opts.ciphers || null;\n  this.rejectUnauthorized = opts.rejectUnauthorized === undefined ? true : opts.rejectUnauthorized;\n  this.forceNode = !!opts.forceNode;\n\n  // detect ReactNative environment\n  this.isReactNative = (typeof navigator !== 'undefined' && typeof navigator.product === 'string' && navigator.product.toLowerCase() === 'reactnative');\n\n  // other options for Node.js or ReactNative client\n  if (typeof self === 'undefined' || this.isReactNative) {\n    if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) {\n      this.extraHeaders = opts.extraHeaders;\n    }\n\n    if (opts.localAddress) {\n      this.localAddress = opts.localAddress;\n    }\n  }\n\n  // set on handshake\n  this.id = null;\n  this.upgrades = null;\n  this.pingInterval = null;\n  this.pingTimeout = null;\n\n  // set on heartbeat\n  this.pingIntervalTimer = null;\n  this.pingTimeoutTimer = null;\n\n  this.open();\n}\n\nSocket.priorWebsocketSuccess = false;\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Socket.prototype);\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nSocket.protocol = parser.protocol; // this is an int\n\n/**\n * Expose deps for legacy compatibility\n * and standalone browser access.\n */\n\nSocket.Socket = Socket;\nSocket.Transport = require('./transport');\nSocket.transports = require('./transports/index');\nSocket.parser = require('engine.io-parser');\n\n/**\n * Creates transport of the given type.\n *\n * @param {String} transport name\n * @return {Transport}\n * @api private\n */\n\nSocket.prototype.createTransport = function (name) {\n\n  var query = clone(this.query);\n\n  // append engine.io protocol identifier\n  query.EIO = parser.protocol;\n\n  // transport name\n  query.transport = name;\n\n  // per-transport options\n  var options = this.transportOptions[name] || {};\n\n  // session id if we already have one\n  if (this.id) query.sid = this.id;\n\n  var transport = new transports[name]({\n    query: query,\n    socket: this,\n    agent: options.agent || this.agent,\n    hostname: options.hostname || this.hostname,\n    port: options.port || this.port,\n    secure: options.secure || this.secure,\n    path: options.path || this.path,\n    forceJSONP: options.forceJSONP || this.forceJSONP,\n    jsonp: options.jsonp || this.jsonp,\n    forceBase64: options.forceBase64 || this.forceBase64,\n    enablesXDR: options.enablesXDR || this.enablesXDR,\n    timestampRequests: options.timestampRequests || this.timestampRequests,\n    timestampParam: options.timestampParam || this.timestampParam,\n    policyPort: options.policyPort || this.policyPort,\n    pfx: options.pfx || this.pfx,\n    key: options.key || this.key,\n    passphrase: options.passphrase || this.passphrase,\n    cert: options.cert || this.cert,\n    ca: options.ca || this.ca,\n    ciphers: options.ciphers || this.ciphers,\n    rejectUnauthorized: options.rejectUnauthorized || this.rejectUnauthorized,\n    perMessageDeflate: options.perMessageDeflate || this.perMessageDeflate,\n    extraHeaders: options.extraHeaders || this.extraHeaders,\n    forceNode: options.forceNode || this.forceNode,\n    localAddress: options.localAddress || this.localAddress,\n    requestTimeout: options.requestTimeout || this.requestTimeout,\n    protocols: options.protocols || void (0),\n    isReactNative: this.isReactNative\n  });\n\n  return transport;\n};\n\nfunction clone (obj) {\n  var o = {};\n  for (var i in obj) {\n    if (obj.hasOwnProperty(i)) {\n      o[i] = obj[i];\n    }\n  }\n  return o;\n}\n\n/**\n * Initializes transport to use and starts probe.\n *\n * @api private\n */\nSocket.prototype.open = function () {\n  var transport;\n  if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') !== -1) {\n    transport = 'websocket';\n  } else if (0 === this.transports.length) {\n    // Emit error on next tick so it can be listened to\n    var self = this;\n    setTimeout(function () {\n      self.emit('error', 'No transports available');\n    }, 0);\n    return;\n  } else {\n    transport = this.transports[0];\n  }\n  this.readyState = 'opening';\n\n  // Retry with the next transport if the transport is disabled (jsonp: false)\n  try {\n    transport = this.createTransport(transport);\n  } catch (e) {\n    this.transports.shift();\n    this.open();\n    return;\n  }\n\n  transport.open();\n  this.setTransport(transport);\n};\n\n/**\n * Sets the current transport. Disables the existing one (if any).\n *\n * @api private\n */\n\nSocket.prototype.setTransport = function (transport) {\n\n  var self = this;\n\n  if (this.transport) {\n\n    this.transport.removeAllListeners();\n  }\n\n  // set up transport\n  this.transport = transport;\n\n  // set up transport listeners\n  transport\n  .on('drain', function () {\n    self.onDrain();\n  })\n  .on('packet', function (packet) {\n    self.onPacket(packet);\n  })\n  .on('error', function (e) {\n    self.onError(e);\n  })\n  .on('close', function () {\n    self.onClose('transport close');\n  });\n};\n\n/**\n * Probes a transport.\n *\n * @param {String} transport name\n * @api private\n */\n\nSocket.prototype.probe = function (name) {\n\n  var transport = this.createTransport(name, { probe: 1 });\n  var failed = false;\n  var self = this;\n\n  Socket.priorWebsocketSuccess = false;\n\n  function onTransportOpen () {\n    if (self.onlyBinaryUpgrades) {\n      var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;\n      failed = failed || upgradeLosesBinary;\n    }\n    if (failed) return;\n\n\n    transport.send([{ type: 'ping', data: 'probe' }]);\n    transport.once('packet', function (msg) {\n      if (failed) return;\n      if ('pong' === msg.type && 'probe' === msg.data) {\n\n        self.upgrading = true;\n        self.emit('upgrading', transport);\n        if (!transport) return;\n        Socket.priorWebsocketSuccess = 'websocket' === transport.name;\n\n\n        self.transport.pause(function () {\n          if (failed) return;\n          if ('closed' === self.readyState) return;\n\n\n          cleanup();\n\n          self.setTransport(transport);\n          transport.send([{ type: 'upgrade' }]);\n          self.emit('upgrade', transport);\n          transport = null;\n          self.upgrading = false;\n          self.flush();\n        });\n      } else {\n\n        var err = new Error('probe error');\n        err.transport = transport.name;\n        self.emit('upgradeError', err);\n      }\n    });\n  }\n\n  function freezeTransport () {\n    if (failed) return;\n\n    // Any callback called by transport should be ignored since now\n    failed = true;\n\n    cleanup();\n\n    transport.close();\n    transport = null;\n  }\n\n  // Handle any error that happens while probing\n  function onerror (err) {\n    var error = new Error('probe error: ' + err);\n    error.transport = transport.name;\n\n    freezeTransport();\n\n\n\n    self.emit('upgradeError', error);\n  }\n\n  function onTransportClose () {\n    onerror('transport closed');\n  }\n\n  // When the socket is closed while we're probing\n  function onclose () {\n    onerror('socket closed');\n  }\n\n  // When the socket is upgraded while we're probing\n  function onupgrade (to) {\n    if (transport && to.name !== transport.name) {\n\n      freezeTransport();\n    }\n  }\n\n  // Remove all listeners on the transport and on self\n  function cleanup () {\n    transport.removeListener('open', onTransportOpen);\n    transport.removeListener('error', onerror);\n    transport.removeListener('close', onTransportClose);\n    self.removeListener('close', onclose);\n    self.removeListener('upgrading', onupgrade);\n  }\n\n  transport.once('open', onTransportOpen);\n  transport.once('error', onerror);\n  transport.once('close', onTransportClose);\n\n  this.once('close', onclose);\n  this.once('upgrading', onupgrade);\n\n  transport.open();\n};\n\n/**\n * Called when connection is deemed open.\n *\n * @api public\n */\n\nSocket.prototype.onOpen = function () {\n\n  this.readyState = 'open';\n  Socket.priorWebsocketSuccess = 'websocket' === this.transport.name;\n  this.emit('open');\n  this.flush();\n\n  // we check for `readyState` in case an `open`\n  // listener already closed the socket\n  if ('open' === this.readyState && this.upgrade && this.transport.pause) {\n\n    for (var i = 0, l = this.upgrades.length; i < l; i++) {\n      this.probe(this.upgrades[i]);\n    }\n  }\n};\n\n/**\n * Handles a packet.\n *\n * @api private\n */\n\nSocket.prototype.onPacket = function (packet) {\n  if ('opening' === this.readyState || 'open' === this.readyState ||\n      'closing' === this.readyState) {\n\n\n    this.emit('packet', packet);\n\n    // Socket is live - any packet counts\n    this.emit('heartbeat');\n\n    switch (packet.type) {\n      case 'open':\n        this.onHandshake(JSON.parse(packet.data));\n        break;\n\n      case 'pong':\n        this.setPing();\n        this.emit('pong');\n        break;\n\n      case 'error':\n        var err = new Error('server error');\n        err.code = packet.data;\n        this.onError(err);\n        break;\n\n      case 'message':\n        this.emit('data', packet.data);\n        this.emit('message', packet.data);\n        break;\n    }\n  } else {\n\n  }\n};\n\n/**\n * Called upon handshake completion.\n *\n * @param {Object} handshake obj\n * @api private\n */\n\nSocket.prototype.onHandshake = function (data) {\n  this.emit('handshake', data);\n  this.id = data.sid;\n  this.transport.query.sid = data.sid;\n  this.upgrades = this.filterUpgrades(data.upgrades);\n  this.pingInterval = data.pingInterval;\n  this.pingTimeout = data.pingTimeout;\n  this.onOpen();\n  // In case open handler closes socket\n  if ('closed' === this.readyState) return;\n  this.setPing();\n\n  // Prolong liveness of socket on heartbeat\n  this.removeListener('heartbeat', this.onHeartbeat);\n  this.on('heartbeat', this.onHeartbeat);\n};\n\n/**\n * Resets ping timeout.\n *\n * @api private\n */\n\nSocket.prototype.onHeartbeat = function (timeout) {\n  clearTimeout(this.pingTimeoutTimer);\n  var self = this;\n  self.pingTimeoutTimer = setTimeout(function () {\n    if ('closed' === self.readyState) return;\n    self.onClose('ping timeout');\n  }, timeout || (self.pingInterval + self.pingTimeout));\n};\n\n/**\n * Pings server every `this.pingInterval` and expects response\n * within `this.pingTimeout` or closes connection.\n *\n * @api private\n */\n\nSocket.prototype.setPing = function () {\n  var self = this;\n  clearTimeout(self.pingIntervalTimer);\n  self.pingIntervalTimer = setTimeout(function () {\n\n    self.ping();\n    self.onHeartbeat(self.pingTimeout);\n  }, self.pingInterval);\n};\n\n/**\n* Sends a ping packet.\n*\n* @api private\n*/\n\nSocket.prototype.ping = function () {\n  var self = this;\n  this.sendPacket('ping', function () {\n    self.emit('ping');\n  });\n};\n\n/**\n * Called on `drain` event\n *\n * @api private\n */\n\nSocket.prototype.onDrain = function () {\n  this.writeBuffer.splice(0, this.prevBufferLen);\n\n  // setting prevBufferLen = 0 is very important\n  // for example, when upgrading, upgrade packet is sent over,\n  // and a nonzero prevBufferLen could cause problems on `drain`\n  this.prevBufferLen = 0;\n\n  if (0 === this.writeBuffer.length) {\n    this.emit('drain');\n  } else {\n    this.flush();\n  }\n};\n\n/**\n * Flush write buffers.\n *\n * @api private\n */\n\nSocket.prototype.flush = function () {\n  if ('closed' !== this.readyState && this.transport.writable &&\n    !this.upgrading && this.writeBuffer.length) {\n\n    this.transport.send(this.writeBuffer);\n    // keep track of current length of writeBuffer\n    // splice writeBuffer and callbackBuffer on `drain`\n    this.prevBufferLen = this.writeBuffer.length;\n    this.emit('flush');\n  }\n};\n\n/**\n * Sends a message.\n *\n * @param {String} message.\n * @param {Function} callback function.\n * @param {Object} options.\n * @return {Socket} for chaining.\n * @api public\n */\n\nSocket.prototype.write =\nSocket.prototype.send = function (msg, options, fn) {\n  this.sendPacket('message', msg, options, fn);\n  return this;\n};\n\n/**\n * Sends a packet.\n *\n * @param {String} packet type.\n * @param {String} data.\n * @param {Object} options.\n * @param {Function} callback function.\n * @api private\n */\n\nSocket.prototype.sendPacket = function (type, data, options, fn) {\n  if ('function' === typeof data) {\n    fn = data;\n    data = undefined;\n  }\n\n  if ('function' === typeof options) {\n    fn = options;\n    options = null;\n  }\n\n  if ('closing' === this.readyState || 'closed' === this.readyState) {\n    return;\n  }\n\n  options = options || {};\n  options.compress = false !== options.compress;\n\n  var packet = {\n    type: type,\n    data: data,\n    options: options\n  };\n  this.emit('packetCreate', packet);\n  this.writeBuffer.push(packet);\n  if (fn) this.once('flush', fn);\n  this.flush();\n};\n\n/**\n * Closes the connection.\n *\n * @api private\n */\n\nSocket.prototype.close = function () {\n  if ('opening' === this.readyState || 'open' === this.readyState) {\n    this.readyState = 'closing';\n\n    var self = this;\n\n    if (this.writeBuffer.length) {\n      this.once('drain', function () {\n        if (this.upgrading) {\n          waitForUpgrade();\n        } else {\n          close();\n        }\n      });\n    } else if (this.upgrading) {\n      waitForUpgrade();\n    } else {\n      close();\n    }\n  }\n\n  function close () {\n    self.onClose('forced close');\n\n    self.transport.close();\n  }\n\n  function cleanupAndClose () {\n    self.removeListener('upgrade', cleanupAndClose);\n    self.removeListener('upgradeError', cleanupAndClose);\n    close();\n  }\n\n  function waitForUpgrade () {\n    // wait for upgrade to finish since we can't send packets while pausing a transport\n    self.once('upgrade', cleanupAndClose);\n    self.once('upgradeError', cleanupAndClose);\n  }\n\n  return this;\n};\n\n/**\n * Called upon transport error\n *\n * @api private\n */\n\nSocket.prototype.onError = function (err) {\n\n  Socket.priorWebsocketSuccess = false;\n  this.emit('error', err);\n  this.onClose('transport error', err);\n};\n\n/**\n * Called upon transport close.\n *\n * @api private\n */\n\nSocket.prototype.onClose = function (reason, desc) {\n  if ('opening' === this.readyState || 'open' === this.readyState || 'closing' === this.readyState) {\n\n    var self = this;\n\n    // clear timers\n    clearTimeout(this.pingIntervalTimer);\n    clearTimeout(this.pingTimeoutTimer);\n\n    // stop event from firing again for transport\n    this.transport.removeAllListeners('close');\n\n    // ensure transport won't stay open\n    this.transport.close();\n\n    // ignore further transport communication\n    this.transport.removeAllListeners();\n\n    // set ready state\n    this.readyState = 'closed';\n\n    // clear session id\n    this.id = null;\n\n    // emit close event\n    this.emit('close', reason, desc);\n\n    // clean buffers after, so users can still\n    // grab the buffers on `close` event\n    self.writeBuffer = [];\n    self.prevBufferLen = 0;\n  }\n};\n\n/**\n * Filters upgrades, returning only those matching client transports.\n *\n * @param {Array} server upgrades\n * @api private\n *\n */\n\nSocket.prototype.filterUpgrades = function (upgrades) {\n  var filteredUpgrades = [];\n  for (var i = 0, j = upgrades.length; i < j; i++) {\n    if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);\n  }\n  return filteredUpgrades;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/socket.js\n// module id = 11\n// module chunks = 0","/**\n * Module dependencies\n */\n\nvar XMLHttpRequest = require('xmlhttprequest-ssl');\nvar XHR = require('./polling-xhr');\nvar JSONP = require('./polling-jsonp');\nvar websocket = require('./websocket');\n\n/**\n * Export transports.\n */\n\nexports.polling = polling;\nexports.websocket = websocket;\n\n/**\n * Polling transport polymorphic constructor.\n * Decides on xhr vs jsonp based on feature detection.\n *\n * @api private\n */\n\nfunction polling (opts) {\n  var xhr;\n  var xd = false;\n  var xs = false;\n  var jsonp = false !== opts.jsonp;\n\n  if (typeof location !== 'undefined') {\n    var isSSL = 'https:' === location.protocol;\n    var port = location.port;\n\n    // some user agents have empty `location.port`\n    if (!port) {\n      port = isSSL ? 443 : 80;\n    }\n\n    xd = opts.hostname !== location.hostname || port !== opts.port;\n    xs = opts.secure !== isSSL;\n  }\n\n  opts.xdomain = xd;\n  opts.xscheme = xs;\n  xhr = new XMLHttpRequest(opts);\n\n  if ('open' in xhr && !opts.forceJSONP) {\n    return new XHR(opts);\n  } else {\n    if (!jsonp) throw new Error('JSONP disabled');\n    return new JSONP(opts);\n  }\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/index.js\n// module id = 12\n// module chunks = 0","// browser shim for xmlhttprequest module\n\nvar hasCORS = require('has-cors');\n\nmodule.exports = function (opts) {\n  var xdomain = opts.xdomain;\n\n  // scheme must be same when usign XDomainRequest\n  // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx\n  var xscheme = opts.xscheme;\n\n  // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.\n  // https://github.com/Automattic/engine.io-client/pull/217\n  var enablesXDR = opts.enablesXDR;\n\n  // XMLHttpRequest can be disabled on IE\n  try {\n    if ('undefined' !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n      return new XMLHttpRequest();\n    }\n  } catch (e) { }\n\n  // Use XDomainRequest for IE8 if enablesXDR is true\n  // because loading bar keeps flashing when using jsonp-polling\n  // https://github.com/yujiosaka/socke.io-ie8-loading-example\n  try {\n    if ('undefined' !== typeof XDomainRequest && !xscheme && enablesXDR) {\n      return new XDomainRequest();\n    }\n  } catch (e) { }\n\n  if (!xdomain) {\n    try {\n      return new self[['Active'].concat('Object').join('X')]('Microsoft.XMLHTTP');\n    } catch (e) { }\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/xmlhttprequest.js\n// module id = 13\n// module chunks = 0","\n/**\n * Module exports.\n *\n * Logic borrowed from Modernizr:\n *\n *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js\n */\n\ntry {\n  module.exports = typeof XMLHttpRequest !== 'undefined' &&\n    'withCredentials' in new XMLHttpRequest();\n} catch (err) {\n  // if XMLHttp support is disabled in IE then it will throw\n  // when trying to create\n  module.exports = false;\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/has-cors/index.js\n// module id = 14\n// module chunks = 0","/* global attachEvent */\n\n/**\n * Module requirements.\n */\n\nvar XMLHttpRequest = require('xmlhttprequest-ssl');\nvar Polling = require('./polling');\nvar Emitter = require('component-emitter');\nvar inherit = require('component-inherit');\nvar debug = require('debug')('engine.io-client:polling-xhr');\n\n/**\n * Module exports.\n */\n\nmodule.exports = XHR;\nmodule.exports.Request = Request;\n\n/**\n * Empty function\n */\n\nfunction empty () {}\n\n/**\n * XHR Polling constructor.\n *\n * @param {Object} opts\n * @api public\n */\n\nfunction XHR (opts) {\n  Polling.call(this, opts);\n  this.requestTimeout = opts.requestTimeout;\n  this.extraHeaders = opts.extraHeaders;\n\n  if (typeof location !== 'undefined') {\n    var isSSL = 'https:' === location.protocol;\n    var port = location.port;\n\n    // some user agents have empty `location.port`\n    if (!port) {\n      port = isSSL ? 443 : 80;\n    }\n\n    this.xd = (typeof location !== 'undefined' && opts.hostname !== location.hostname) ||\n      port !== opts.port;\n    this.xs = opts.secure !== isSSL;\n  }\n}\n\n/**\n * Inherits from Polling.\n */\n\ninherit(XHR, Polling);\n\n/**\n * XHR supports binary\n */\n\nXHR.prototype.supportsBinary = true;\n\n/**\n * Creates a request.\n *\n * @param {String} method\n * @api private\n */\n\nXHR.prototype.request = function (opts) {\n  opts = opts || {};\n  opts.uri = this.uri();\n  opts.xd = this.xd;\n  opts.xs = this.xs;\n  opts.agent = this.agent || false;\n  opts.supportsBinary = this.supportsBinary;\n  opts.enablesXDR = this.enablesXDR;\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n  opts.requestTimeout = this.requestTimeout;\n\n  // other options for Node.js client\n  opts.extraHeaders = this.extraHeaders;\n\n  return new Request(opts);\n};\n\n/**\n * Sends data.\n *\n * @param {String} data to send.\n * @param {Function} called upon flush.\n * @api private\n */\n\nXHR.prototype.doWrite = function (data, fn) {\n  var isBinary = typeof data !== 'string' && data !== undefined;\n  var req = this.request({ method: 'POST', data: data, isBinary: isBinary });\n  var self = this;\n  req.on('success', fn);\n  req.on('error', function (err) {\n    self.onError('xhr post error', err);\n  });\n  this.sendXhr = req;\n};\n\n/**\n * Starts a poll cycle.\n *\n * @api private\n */\n\nXHR.prototype.doPoll = function () {\n\n  var req = this.request();\n  var self = this;\n  req.on('data', function (data) {\n    self.onData(data);\n  });\n  req.on('error', function (err) {\n    self.onError('xhr poll error', err);\n  });\n  this.pollXhr = req;\n};\n\n/**\n * Request constructor\n *\n * @param {Object} options\n * @api public\n */\n\nfunction Request (opts) {\n  this.method = opts.method || 'GET';\n  this.uri = opts.uri;\n  this.xd = !!opts.xd;\n  this.xs = !!opts.xs;\n  this.async = false !== opts.async;\n  this.data = undefined !== opts.data ? opts.data : null;\n  this.agent = opts.agent;\n  this.isBinary = opts.isBinary;\n  this.supportsBinary = opts.supportsBinary;\n  this.enablesXDR = opts.enablesXDR;\n  this.requestTimeout = opts.requestTimeout;\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx;\n  this.key = opts.key;\n  this.passphrase = opts.passphrase;\n  this.cert = opts.cert;\n  this.ca = opts.ca;\n  this.ciphers = opts.ciphers;\n  this.rejectUnauthorized = opts.rejectUnauthorized;\n\n  // other options for Node.js client\n  this.extraHeaders = opts.extraHeaders;\n\n  this.create();\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Request.prototype);\n\n/**\n * Creates the XHR object and sends the request.\n *\n * @api private\n */\n\nRequest.prototype.create = function () {\n  var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n\n  var xhr = this.xhr = new XMLHttpRequest(opts);\n  var self = this;\n\n  try {\n\n    xhr.open(this.method, this.uri, this.async);\n    try {\n      if (this.extraHeaders) {\n        xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n        for (var i in this.extraHeaders) {\n          if (this.extraHeaders.hasOwnProperty(i)) {\n            xhr.setRequestHeader(i, this.extraHeaders[i]);\n          }\n        }\n      }\n    } catch (e) {}\n\n    if ('POST' === this.method) {\n      try {\n        if (this.isBinary) {\n          xhr.setRequestHeader('Content-type', 'application/octet-stream');\n        } else {\n          xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');\n        }\n      } catch (e) {}\n    }\n\n    try {\n      xhr.setRequestHeader('Accept', '*/*');\n    } catch (e) {}\n\n    // ie6 check\n    if ('withCredentials' in xhr) {\n      xhr.withCredentials = true;\n    }\n\n    if (this.requestTimeout) {\n      xhr.timeout = this.requestTimeout;\n    }\n\n    if (this.hasXDR()) {\n      xhr.onload = function () {\n        self.onLoad();\n      };\n      xhr.onerror = function () {\n        self.onError(xhr.responseText);\n      };\n    } else {\n      xhr.onreadystatechange = function () {\n        if (xhr.readyState === 2) {\n          try {\n            var contentType = xhr.getResponseHeader('Content-Type');\n            if (self.supportsBinary && contentType === 'application/octet-stream') {\n              xhr.responseType = 'arraybuffer';\n            }\n          } catch (e) {}\n        }\n        if (4 !== xhr.readyState) return;\n        if (200 === xhr.status || 1223 === xhr.status) {\n          self.onLoad();\n        } else {\n          // make sure the `error` event handler that's user-set\n          // does not throw in the same tick and gets caught here\n          setTimeout(function () {\n            self.onError(xhr.status);\n          }, 0);\n        }\n      };\n    }\n\n\n    xhr.send(this.data);\n  } catch (e) {\n    // Need to defer since .create() is called directly fhrom the constructor\n    // and thus the 'error' event can only be only bound *after* this exception\n    // occurs.  Therefore, also, we cannot throw here at all.\n    setTimeout(function () {\n      self.onError(e);\n    }, 0);\n    return;\n  }\n\n  if (typeof document !== 'undefined') {\n    this.index = Request.requestsCount++;\n    Request.requests[this.index] = this;\n  }\n};\n\n/**\n * Called upon successful response.\n *\n * @api private\n */\n\nRequest.prototype.onSuccess = function () {\n  this.emit('success');\n  this.cleanup();\n};\n\n/**\n * Called if we have data.\n *\n * @api private\n */\n\nRequest.prototype.onData = function (data) {\n  this.emit('data', data);\n  this.onSuccess();\n};\n\n/**\n * Called upon error.\n *\n * @api private\n */\n\nRequest.prototype.onError = function (err) {\n  this.emit('error', err);\n  this.cleanup(true);\n};\n\n/**\n * Cleans up house.\n *\n * @api private\n */\n\nRequest.prototype.cleanup = function (fromError) {\n  if ('undefined' === typeof this.xhr || null === this.xhr) {\n    return;\n  }\n  // xmlhttprequest\n  if (this.hasXDR()) {\n    this.xhr.onload = this.xhr.onerror = empty;\n  } else {\n    this.xhr.onreadystatechange = empty;\n  }\n\n  if (fromError) {\n    try {\n      this.xhr.abort();\n    } catch (e) {}\n  }\n\n  if (typeof document !== 'undefined') {\n    delete Request.requests[this.index];\n  }\n\n  this.xhr = null;\n};\n\n/**\n * Called upon load.\n *\n * @api private\n */\n\nRequest.prototype.onLoad = function () {\n  var data;\n  try {\n    var contentType;\n    try {\n      contentType = this.xhr.getResponseHeader('Content-Type');\n    } catch (e) {}\n    if (contentType === 'application/octet-stream') {\n      data = this.xhr.response || this.xhr.responseText;\n    } else {\n      data = this.xhr.responseText;\n    }\n  } catch (e) {\n    this.onError(e);\n  }\n  if (null != data) {\n    this.onData(data);\n  }\n};\n\n/**\n * Check if it has XDomainRequest.\n *\n * @api private\n */\n\nRequest.prototype.hasXDR = function () {\n  return typeof XDomainRequest !== 'undefined' && !this.xs && this.enablesXDR;\n};\n\n/**\n * Aborts the request.\n *\n * @api public\n */\n\nRequest.prototype.abort = function () {\n  this.cleanup();\n};\n\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\n\nRequest.requestsCount = 0;\nRequest.requests = {};\n\nif (typeof document !== 'undefined') {\n  if (typeof attachEvent === 'function') {\n    attachEvent('onunload', unloadHandler);\n  } else if (typeof addEventListener === 'function') {\n    var terminationEvent = 'onpagehide' in self ? 'pagehide' : 'unload';\n    addEventListener(terminationEvent, unloadHandler, false);\n  }\n}\n\nfunction unloadHandler () {\n  for (var i in Request.requests) {\n    if (Request.requests.hasOwnProperty(i)) {\n      Request.requests[i].abort();\n    }\n  }\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/polling-xhr.js\n// module id = 15\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar Transport = require('../transport');\nvar parseqs = require('parseqs');\nvar parser = require('engine.io-parser');\nvar inherit = require('component-inherit');\nvar yeast = require('yeast');\nvar debug = require('debug')('engine.io-client:polling');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Polling;\n\n/**\n * Is XHR2 supported?\n */\n\nvar hasXHR2 = (function () {\n  var XMLHttpRequest = require('xmlhttprequest-ssl');\n  var xhr = new XMLHttpRequest({ xdomain: false });\n  return null != xhr.responseType;\n})();\n\n/**\n * Polling interface.\n *\n * @param {Object} opts\n * @api private\n */\n\nfunction Polling (opts) {\n  var forceBase64 = (opts && opts.forceBase64);\n  if (!hasXHR2 || forceBase64) {\n    this.supportsBinary = false;\n  }\n  Transport.call(this, opts);\n}\n\n/**\n * Inherits from Transport.\n */\n\ninherit(Polling, Transport);\n\n/**\n * Transport name.\n */\n\nPolling.prototype.name = 'polling';\n\n/**\n * Opens the socket (triggers polling). We write a PING message to determine\n * when the transport is open.\n *\n * @api private\n */\n\nPolling.prototype.doOpen = function () {\n  this.poll();\n};\n\n/**\n * Pauses polling.\n *\n * @param {Function} callback upon buffers are flushed and transport is paused\n * @api private\n */\n\nPolling.prototype.pause = function (onPause) {\n  var self = this;\n\n  this.readyState = 'pausing';\n\n  function pause () {\n\n    self.readyState = 'paused';\n    onPause();\n  }\n\n  if (this.polling || !this.writable) {\n    var total = 0;\n\n    if (this.polling) {\n\n      total++;\n      this.once('pollComplete', function () {\n\n        --total || pause();\n      });\n    }\n\n    if (!this.writable) {\n\n      total++;\n      this.once('drain', function () {\n\n        --total || pause();\n      });\n    }\n  } else {\n    pause();\n  }\n};\n\n/**\n * Starts polling cycle.\n *\n * @api public\n */\n\nPolling.prototype.poll = function () {\n\n  this.polling = true;\n  this.doPoll();\n  this.emit('poll');\n};\n\n/**\n * Overloads onData to detect payloads.\n *\n * @api private\n */\n\nPolling.prototype.onData = function (data) {\n  var self = this;\n\n  var callback = function (packet, index, total) {\n    // if its the first message we consider the transport open\n    if ('opening' === self.readyState) {\n      self.onOpen();\n    }\n\n    // if its a close packet, we close the ongoing requests\n    if ('close' === packet.type) {\n      self.onClose();\n      return false;\n    }\n\n    // otherwise bypass onData and handle the message\n    self.onPacket(packet);\n  };\n\n  // decode payload\n  parser.decodePayload(data, this.socket.binaryType, callback);\n\n  // if an event did not trigger closing\n  if ('closed' !== this.readyState) {\n    // if we got data we're not polling\n    this.polling = false;\n    this.emit('pollComplete');\n\n    if ('open' === this.readyState) {\n      this.poll();\n    } else {\n\n    }\n  }\n};\n\n/**\n * For polling, send a close packet.\n *\n * @api private\n */\n\nPolling.prototype.doClose = function () {\n  var self = this;\n\n  function close () {\n\n    self.write([{ type: 'close' }]);\n  }\n\n  if ('open' === this.readyState) {\n\n    close();\n  } else {\n    // in case we're trying to close while\n    // handshaking is in progress (GH-164)\n\n    this.once('open', close);\n  }\n};\n\n/**\n * Writes a packets payload.\n *\n * @param {Array} data packets\n * @param {Function} drain callback\n * @api private\n */\n\nPolling.prototype.write = function (packets) {\n  var self = this;\n  this.writable = false;\n  var callbackfn = function () {\n    self.writable = true;\n    self.emit('drain');\n  };\n\n  parser.encodePayload(packets, this.supportsBinary, function (data) {\n    self.doWrite(data, callbackfn);\n  });\n};\n\n/**\n * Generates uri for connection.\n *\n * @api private\n */\n\nPolling.prototype.uri = function () {\n  var query = this.query || {};\n  var schema = this.secure ? 'https' : 'http';\n  var port = '';\n\n  // cache busting is forced\n  if (false !== this.timestampRequests) {\n    query[this.timestampParam] = yeast();\n  }\n\n  if (!this.supportsBinary && !query.sid) {\n    query.b64 = 1;\n  }\n\n  query = parseqs.encode(query);\n\n  // avoid port if default for schema\n  if (this.port && (('https' === schema && Number(this.port) !== 443) ||\n     ('http' === schema && Number(this.port) !== 80))) {\n    port = ':' + this.port;\n  }\n\n  // prepend ? to query\n  if (query.length) {\n    query = '?' + query;\n  }\n\n  var ipv6 = this.hostname.indexOf(':') !== -1;\n  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/polling.js\n// module id = 16\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar parser = require('engine.io-parser');\nvar Emitter = require('component-emitter');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Transport;\n\n/**\n * Transport abstract constructor.\n *\n * @param {Object} options.\n * @api private\n */\n\nfunction Transport (opts) {\n  this.path = opts.path;\n  this.hostname = opts.hostname;\n  this.port = opts.port;\n  this.secure = opts.secure;\n  this.query = opts.query;\n  this.timestampParam = opts.timestampParam;\n  this.timestampRequests = opts.timestampRequests;\n  this.readyState = '';\n  this.agent = opts.agent || false;\n  this.socket = opts.socket;\n  this.enablesXDR = opts.enablesXDR;\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx;\n  this.key = opts.key;\n  this.passphrase = opts.passphrase;\n  this.cert = opts.cert;\n  this.ca = opts.ca;\n  this.ciphers = opts.ciphers;\n  this.rejectUnauthorized = opts.rejectUnauthorized;\n  this.forceNode = opts.forceNode;\n\n  // results of ReactNative environment detection\n  this.isReactNative = opts.isReactNative;\n\n  // other options for Node.js client\n  this.extraHeaders = opts.extraHeaders;\n  this.localAddress = opts.localAddress;\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Transport.prototype);\n\n/**\n * Emits an error.\n *\n * @param {String} str\n * @return {Transport} for chaining\n * @api public\n */\n\nTransport.prototype.onError = function (msg, desc) {\n  var err = new Error(msg);\n  err.type = 'TransportError';\n  err.description = desc;\n  this.emit('error', err);\n  return this;\n};\n\n/**\n * Opens the transport.\n *\n * @api public\n */\n\nTransport.prototype.open = function () {\n  if ('closed' === this.readyState || '' === this.readyState) {\n    this.readyState = 'opening';\n    this.doOpen();\n  }\n\n  return this;\n};\n\n/**\n * Closes the transport.\n *\n * @api private\n */\n\nTransport.prototype.close = function () {\n  if ('opening' === this.readyState || 'open' === this.readyState) {\n    this.doClose();\n    this.onClose();\n  }\n\n  return this;\n};\n\n/**\n * Sends multiple packets.\n *\n * @param {Array} packets\n * @api private\n */\n\nTransport.prototype.send = function (packets) {\n  if ('open' === this.readyState) {\n    this.write(packets);\n  } else {\n    throw new Error('Transport not open');\n  }\n};\n\n/**\n * Called upon open\n *\n * @api private\n */\n\nTransport.prototype.onOpen = function () {\n  this.readyState = 'open';\n  this.writable = true;\n  this.emit('open');\n};\n\n/**\n * Called with data.\n *\n * @param {String} data\n * @api private\n */\n\nTransport.prototype.onData = function (data) {\n  var packet = parser.decodePacket(data, this.socket.binaryType);\n  this.onPacket(packet);\n};\n\n/**\n * Called with a decoded packet.\n */\n\nTransport.prototype.onPacket = function (packet) {\n  this.emit('packet', packet);\n};\n\n/**\n * Called upon close.\n *\n * @api private\n */\n\nTransport.prototype.onClose = function () {\n  this.readyState = 'closed';\n  this.emit('close');\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transport.js\n// module id = 17\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar keys = require('./keys');\nvar hasBinary = require('has-binary2');\nvar sliceBuffer = require('arraybuffer.slice');\nvar after = require('after');\nvar utf8 = require('./utf8');\n\nvar base64encoder;\nif (typeof ArrayBuffer !== 'undefined') {\n  base64encoder = require('base64-arraybuffer');\n}\n\n/**\n * Check if we are running an android browser. That requires us to use\n * ArrayBuffer with polling transports...\n *\n * http://ghinda.net/jpeg-blob-ajax-android/\n */\n\nvar isAndroid = typeof navigator !== 'undefined' && /Android/i.test(navigator.userAgent);\n\n/**\n * Check if we are running in PhantomJS.\n * Uploading a Blob with PhantomJS does not work correctly, as reported here:\n * https://github.com/ariya/phantomjs/issues/11395\n * @type boolean\n */\nvar isPhantomJS = typeof navigator !== 'undefined' && /PhantomJS/i.test(navigator.userAgent);\n\n/**\n * When true, avoids using Blobs to encode payloads.\n * @type boolean\n */\nvar dontSendBlobs = isAndroid || isPhantomJS;\n\n/**\n * Current protocol version.\n */\n\nexports.protocol = 3;\n\n/**\n * Packet types.\n */\n\nvar packets = exports.packets = {\n    open:     0    // non-ws\n  , close:    1    // non-ws\n  , ping:     2\n  , pong:     3\n  , message:  4\n  , upgrade:  5\n  , noop:     6\n};\n\nvar packetslist = keys(packets);\n\n/**\n * Premade error packet.\n */\n\nvar err = { type: 'error', data: 'parser error' };\n\n/**\n * Create a blob api even for blob builder when vendor prefixes exist\n */\n\nvar Blob = require('blob');\n\n/**\n * Encodes a packet.\n *\n *     <packet type id> [ <data> ]\n *\n * Example:\n *\n *     5hello world\n *     3\n *     4\n *\n * Binary is encoded in an identical principle\n *\n * @api private\n */\n\nexports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {\n  if (typeof supportsBinary === 'function') {\n    callback = supportsBinary;\n    supportsBinary = false;\n  }\n\n  if (typeof utf8encode === 'function') {\n    callback = utf8encode;\n    utf8encode = null;\n  }\n\n  var data = (packet.data === undefined)\n    ? undefined\n    : packet.data.buffer || packet.data;\n\n  if (typeof ArrayBuffer !== 'undefined' && data instanceof ArrayBuffer) {\n    return encodeArrayBuffer(packet, supportsBinary, callback);\n  } else if (typeof Blob !== 'undefined' && data instanceof Blob) {\n    return encodeBlob(packet, supportsBinary, callback);\n  }\n\n  // might be an object with { base64: true, data: dataAsBase64String }\n  if (data && data.base64) {\n    return encodeBase64Object(packet, callback);\n  }\n\n  // Sending data as a utf-8 string\n  var encoded = packets[packet.type];\n\n  // data fragment is optional\n  if (undefined !== packet.data) {\n    encoded += utf8encode ? utf8.encode(String(packet.data), { strict: false }) : String(packet.data);\n  }\n\n  return callback('' + encoded);\n\n};\n\nfunction encodeBase64Object(packet, callback) {\n  // packet data is an object { base64: true, data: dataAsBase64String }\n  var message = 'b' + exports.packets[packet.type] + packet.data.data;\n  return callback(message);\n}\n\n/**\n * Encode packet helpers for binary types\n */\n\nfunction encodeArrayBuffer(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  var data = packet.data;\n  var contentArray = new Uint8Array(data);\n  var resultBuffer = new Uint8Array(1 + data.byteLength);\n\n  resultBuffer[0] = packets[packet.type];\n  for (var i = 0; i < contentArray.length; i++) {\n    resultBuffer[i+1] = contentArray[i];\n  }\n\n  return callback(resultBuffer.buffer);\n}\n\nfunction encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  var fr = new FileReader();\n  fr.onload = function() {\n    exports.encodePacket({ type: packet.type, data: fr.result }, supportsBinary, true, callback);\n  };\n  return fr.readAsArrayBuffer(packet.data);\n}\n\nfunction encodeBlob(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  if (dontSendBlobs) {\n    return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);\n  }\n\n  var length = new Uint8Array(1);\n  length[0] = packets[packet.type];\n  var blob = new Blob([length.buffer, packet.data]);\n\n  return callback(blob);\n}\n\n/**\n * Encodes a packet with binary data in a base64 string\n *\n * @param {Object} packet, has `type` and `data`\n * @return {String} base64 encoded message\n */\n\nexports.encodeBase64Packet = function(packet, callback) {\n  var message = 'b' + exports.packets[packet.type];\n  if (typeof Blob !== 'undefined' && packet.data instanceof Blob) {\n    var fr = new FileReader();\n    fr.onload = function() {\n      var b64 = fr.result.split(',')[1];\n      callback(message + b64);\n    };\n    return fr.readAsDataURL(packet.data);\n  }\n\n  var b64data;\n  try {\n    b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));\n  } catch (e) {\n    // iPhone Safari doesn't let you apply with typed arrays\n    var typed = new Uint8Array(packet.data);\n    var basic = new Array(typed.length);\n    for (var i = 0; i < typed.length; i++) {\n      basic[i] = typed[i];\n    }\n    b64data = String.fromCharCode.apply(null, basic);\n  }\n  message += btoa(b64data);\n  return callback(message);\n};\n\n/**\n * Decodes a packet. Changes format to Blob if requested.\n *\n * @return {Object} with `type` and `data` (if any)\n * @api private\n */\n\nexports.decodePacket = function (data, binaryType, utf8decode) {\n  if (data === undefined) {\n    return err;\n  }\n  // String data\n  if (typeof data === 'string') {\n    if (data.charAt(0) === 'b') {\n      return exports.decodeBase64Packet(data.substr(1), binaryType);\n    }\n\n    if (utf8decode) {\n      data = tryDecode(data);\n      if (data === false) {\n        return err;\n      }\n    }\n    var type = data.charAt(0);\n\n    if (Number(type) != type || !packetslist[type]) {\n      return err;\n    }\n\n    if (data.length > 1) {\n      return { type: packetslist[type], data: data.substring(1) };\n    } else {\n      return { type: packetslist[type] };\n    }\n  }\n\n  var asArray = new Uint8Array(data);\n  var type = asArray[0];\n  var rest = sliceBuffer(data, 1);\n  if (Blob && binaryType === 'blob') {\n    rest = new Blob([rest]);\n  }\n  return { type: packetslist[type], data: rest };\n};\n\nfunction tryDecode(data) {\n  try {\n    data = utf8.decode(data, { strict: false });\n  } catch (e) {\n    return false;\n  }\n  return data;\n}\n\n/**\n * Decodes a packet encoded in a base64 string\n *\n * @param {String} base64 encoded message\n * @return {Object} with `type` and `data` (if any)\n */\n\nexports.decodeBase64Packet = function(msg, binaryType) {\n  var type = packetslist[msg.charAt(0)];\n  if (!base64encoder) {\n    return { type: type, data: { base64: true, data: msg.substr(1) } };\n  }\n\n  var data = base64encoder.decode(msg.substr(1));\n\n  if (binaryType === 'blob' && Blob) {\n    data = new Blob([data]);\n  }\n\n  return { type: type, data: data };\n};\n\n/**\n * Encodes multiple messages (payload).\n *\n *     <length>:data\n *\n * Example:\n *\n *     11:hello world2:hi\n *\n * If any contents are binary, they will be encoded as base64 strings. Base64\n * encoded strings are marked with a b before the length specifier\n *\n * @param {Array} packets\n * @api private\n */\n\nexports.encodePayload = function (packets, supportsBinary, callback) {\n  if (typeof supportsBinary === 'function') {\n    callback = supportsBinary;\n    supportsBinary = null;\n  }\n\n  var isBinary = hasBinary(packets);\n\n  if (supportsBinary && isBinary) {\n    if (Blob && !dontSendBlobs) {\n      return exports.encodePayloadAsBlob(packets, callback);\n    }\n\n    return exports.encodePayloadAsArrayBuffer(packets, callback);\n  }\n\n  if (!packets.length) {\n    return callback('0:');\n  }\n\n  function setLengthHeader(message) {\n    return message.length + ':' + message;\n  }\n\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, !isBinary ? false : supportsBinary, false, function(message) {\n      doneCallback(null, setLengthHeader(message));\n    });\n  }\n\n  map(packets, encodeOne, function(err, results) {\n    return callback(results.join(''));\n  });\n};\n\n/**\n * Async array map using after\n */\n\nfunction map(ary, each, done) {\n  var result = new Array(ary.length);\n  var next = after(ary.length, done);\n\n  var eachWithIndex = function(i, el, cb) {\n    each(el, function(error, msg) {\n      result[i] = msg;\n      cb(error, result);\n    });\n  };\n\n  for (var i = 0; i < ary.length; i++) {\n    eachWithIndex(i, ary[i], next);\n  }\n}\n\n/*\n * Decodes data when a payload is maybe expected. Possible binary contents are\n * decoded from their base64 representation\n *\n * @param {String} data, callback method\n * @api public\n */\n\nexports.decodePayload = function (data, binaryType, callback) {\n  if (typeof data !== 'string') {\n    return exports.decodePayloadAsBinary(data, binaryType, callback);\n  }\n\n  if (typeof binaryType === 'function') {\n    callback = binaryType;\n    binaryType = null;\n  }\n\n  var packet;\n  if (data === '') {\n    // parser error - ignoring payload\n    return callback(err, 0, 1);\n  }\n\n  var length = '', n, msg;\n\n  for (var i = 0, l = data.length; i < l; i++) {\n    var chr = data.charAt(i);\n\n    if (chr !== ':') {\n      length += chr;\n      continue;\n    }\n\n    if (length === '' || (length != (n = Number(length)))) {\n      // parser error - ignoring payload\n      return callback(err, 0, 1);\n    }\n\n    msg = data.substr(i + 1, n);\n\n    if (length != msg.length) {\n      // parser error - ignoring payload\n      return callback(err, 0, 1);\n    }\n\n    if (msg.length) {\n      packet = exports.decodePacket(msg, binaryType, false);\n\n      if (err.type === packet.type && err.data === packet.data) {\n        // parser error in individual packet - ignoring payload\n        return callback(err, 0, 1);\n      }\n\n      var ret = callback(packet, i + n, l);\n      if (false === ret) return;\n    }\n\n    // advance cursor\n    i += n;\n    length = '';\n  }\n\n  if (length !== '') {\n    // parser error - ignoring payload\n    return callback(err, 0, 1);\n  }\n\n};\n\n/**\n * Encodes multiple messages (payload) as binary.\n *\n * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number\n * 255><data>\n *\n * Example:\n * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers\n *\n * @param {Array} packets\n * @return {ArrayBuffer} encoded payload\n * @api private\n */\n\nexports.encodePayloadAsArrayBuffer = function(packets, callback) {\n  if (!packets.length) {\n    return callback(new ArrayBuffer(0));\n  }\n\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, true, true, function(data) {\n      return doneCallback(null, data);\n    });\n  }\n\n  map(packets, encodeOne, function(err, encodedPackets) {\n    var totalLength = encodedPackets.reduce(function(acc, p) {\n      var len;\n      if (typeof p === 'string'){\n        len = p.length;\n      } else {\n        len = p.byteLength;\n      }\n      return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2\n    }, 0);\n\n    var resultArray = new Uint8Array(totalLength);\n\n    var bufferIndex = 0;\n    encodedPackets.forEach(function(p) {\n      var isString = typeof p === 'string';\n      var ab = p;\n      if (isString) {\n        var view = new Uint8Array(p.length);\n        for (var i = 0; i < p.length; i++) {\n          view[i] = p.charCodeAt(i);\n        }\n        ab = view.buffer;\n      }\n\n      if (isString) { // not true binary\n        resultArray[bufferIndex++] = 0;\n      } else { // true binary\n        resultArray[bufferIndex++] = 1;\n      }\n\n      var lenStr = ab.byteLength.toString();\n      for (var i = 0; i < lenStr.length; i++) {\n        resultArray[bufferIndex++] = parseInt(lenStr[i]);\n      }\n      resultArray[bufferIndex++] = 255;\n\n      var view = new Uint8Array(ab);\n      for (var i = 0; i < view.length; i++) {\n        resultArray[bufferIndex++] = view[i];\n      }\n    });\n\n    return callback(resultArray.buffer);\n  });\n};\n\n/**\n * Encode as Blob\n */\n\nexports.encodePayloadAsBlob = function(packets, callback) {\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, true, true, function(encoded) {\n      var binaryIdentifier = new Uint8Array(1);\n      binaryIdentifier[0] = 1;\n      if (typeof encoded === 'string') {\n        var view = new Uint8Array(encoded.length);\n        for (var i = 0; i < encoded.length; i++) {\n          view[i] = encoded.charCodeAt(i);\n        }\n        encoded = view.buffer;\n        binaryIdentifier[0] = 0;\n      }\n\n      var len = (encoded instanceof ArrayBuffer)\n        ? encoded.byteLength\n        : encoded.size;\n\n      var lenStr = len.toString();\n      var lengthAry = new Uint8Array(lenStr.length + 1);\n      for (var i = 0; i < lenStr.length; i++) {\n        lengthAry[i] = parseInt(lenStr[i]);\n      }\n      lengthAry[lenStr.length] = 255;\n\n      if (Blob) {\n        var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);\n        doneCallback(null, blob);\n      }\n    });\n  }\n\n  map(packets, encodeOne, function(err, results) {\n    return callback(new Blob(results));\n  });\n};\n\n/*\n * Decodes data when a payload is maybe expected. Strings are decoded by\n * interpreting each byte as a key code for entries marked to start with 0. See\n * description of encodePayloadAsBinary\n *\n * @param {ArrayBuffer} data, callback method\n * @api public\n */\n\nexports.decodePayloadAsBinary = function (data, binaryType, callback) {\n  if (typeof binaryType === 'function') {\n    callback = binaryType;\n    binaryType = null;\n  }\n\n  var bufferTail = data;\n  var buffers = [];\n\n  while (bufferTail.byteLength > 0) {\n    var tailArray = new Uint8Array(bufferTail);\n    var isString = tailArray[0] === 0;\n    var msgLength = '';\n\n    for (var i = 1; ; i++) {\n      if (tailArray[i] === 255) break;\n\n      // 310 = char length of Number.MAX_VALUE\n      if (msgLength.length > 310) {\n        return callback(err, 0, 1);\n      }\n\n      msgLength += tailArray[i];\n    }\n\n    bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);\n    msgLength = parseInt(msgLength);\n\n    var msg = sliceBuffer(bufferTail, 0, msgLength);\n    if (isString) {\n      try {\n        msg = String.fromCharCode.apply(null, new Uint8Array(msg));\n      } catch (e) {\n        // iPhone Safari doesn't let you apply to typed arrays\n        var typed = new Uint8Array(msg);\n        msg = '';\n        for (var i = 0; i < typed.length; i++) {\n          msg += String.fromCharCode(typed[i]);\n        }\n      }\n    }\n\n    buffers.push(msg);\n    bufferTail = sliceBuffer(bufferTail, msgLength);\n  }\n\n  var total = buffers.length;\n  buffers.forEach(function(buffer, i) {\n    callback(exports.decodePacket(buffer, binaryType, true), i, total);\n  });\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-parser/lib/browser.js\n// module id = 18\n// module chunks = 0","\n/**\n * Gets the keys for an object.\n *\n * @return {Array} keys\n * @api private\n */\n\nmodule.exports = Object.keys || function keys (obj){\n  var arr = [];\n  var has = Object.prototype.hasOwnProperty;\n\n  for (var i in obj) {\n    if (has.call(obj, i)) {\n      arr.push(i);\n    }\n  }\n  return arr;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-parser/lib/keys.js\n// module id = 19\n// module chunks = 0","/* global Blob File */\n\n/*\n * Module requirements.\n */\n\nvar isArray = require('isarray');\n\nvar toString = Object.prototype.toString;\nvar withNativeBlob = typeof Blob === 'function' ||\n                        typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]';\nvar withNativeFile = typeof File === 'function' ||\n                        typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]';\n\n/**\n * Module exports.\n */\n\nmodule.exports = hasBinary;\n\n/**\n * Checks for binary data.\n *\n * Supports Buffer, ArrayBuffer, Blob and File.\n *\n * @param {Object} anything\n * @api public\n */\n\nfunction hasBinary (obj) {\n  if (!obj || typeof obj !== 'object') {\n    return false;\n  }\n\n  if (isArray(obj)) {\n    for (var i = 0, l = obj.length; i < l; i++) {\n      if (hasBinary(obj[i])) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  if ((typeof Buffer === 'function' && Buffer.isBuffer && Buffer.isBuffer(obj)) ||\n    (typeof ArrayBuffer === 'function' && obj instanceof ArrayBuffer) ||\n    (withNativeBlob && obj instanceof Blob) ||\n    (withNativeFile && obj instanceof File)\n  ) {\n    return true;\n  }\n\n  // see: https://github.com/Automattic/has-binary/pull/4\n  if (obj.toJSON && typeof obj.toJSON === 'function' && arguments.length === 1) {\n    return hasBinary(obj.toJSON(), true);\n  }\n\n  for (var key in obj) {\n    if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n      return true;\n    }\n  }\n\n  return false;\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/has-binary2/index.js\n// module id = 20\n// module chunks = 0","/**\n * An abstraction for slicing an arraybuffer even when\n * ArrayBuffer.prototype.slice is not supported\n *\n * @api public\n */\n\nmodule.exports = function(arraybuffer, start, end) {\n  var bytes = arraybuffer.byteLength;\n  start = start || 0;\n  end = end || bytes;\n\n  if (arraybuffer.slice) { return arraybuffer.slice(start, end); }\n\n  if (start < 0) { start += bytes; }\n  if (end < 0) { end += bytes; }\n  if (end > bytes) { end = bytes; }\n\n  if (start >= bytes || start >= end || bytes === 0) {\n    return new ArrayBuffer(0);\n  }\n\n  var abv = new Uint8Array(arraybuffer);\n  var result = new Uint8Array(end - start);\n  for (var i = start, ii = 0; i < end; i++, ii++) {\n    result[ii] = abv[i];\n  }\n  return result.buffer;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/arraybuffer.slice/index.js\n// module id = 21\n// module chunks = 0","module.exports = after\n\nfunction after(count, callback, err_cb) {\n    var bail = false\n    err_cb = err_cb || noop\n    proxy.count = count\n\n    return (count === 0) ? callback() : proxy\n\n    function proxy(err, result) {\n        if (proxy.count <= 0) {\n            throw new Error('after called too many times')\n        }\n        --proxy.count\n\n        // after first error, rest are passed to err_cb\n        if (err) {\n            bail = true\n            callback(err)\n            // future error callbacks will go to error handler\n            callback = err_cb\n        } else if (proxy.count === 0 && !bail) {\n            callback(null, result)\n        }\n    }\n}\n\nfunction noop() {}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/after/index.js\n// module id = 22\n// module chunks = 0","/*! https://mths.be/utf8js v2.1.2 by @mathias */\n\nvar stringFromCharCode = String.fromCharCode;\n\n// Taken from https://mths.be/punycode\nfunction ucs2decode(string) {\n\tvar output = [];\n\tvar counter = 0;\n\tvar length = string.length;\n\tvar value;\n\tvar extra;\n\twhile (counter < length) {\n\t\tvalue = string.charCodeAt(counter++);\n\t\tif (value >= 0xD800 && value <= 0xDBFF && counter < length) {\n\t\t\t// high surrogate, and there is a next character\n\t\t\textra = string.charCodeAt(counter++);\n\t\t\tif ((extra & 0xFC00) == 0xDC00) { // low surrogate\n\t\t\t\toutput.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);\n\t\t\t} else {\n\t\t\t\t// unmatched surrogate; only append this code unit, in case the next\n\t\t\t\t// code unit is the high surrogate of a surrogate pair\n\t\t\t\toutput.push(value);\n\t\t\t\tcounter--;\n\t\t\t}\n\t\t} else {\n\t\t\toutput.push(value);\n\t\t}\n\t}\n\treturn output;\n}\n\n// Taken from https://mths.be/punycode\nfunction ucs2encode(array) {\n\tvar length = array.length;\n\tvar index = -1;\n\tvar value;\n\tvar output = '';\n\twhile (++index < length) {\n\t\tvalue = array[index];\n\t\tif (value > 0xFFFF) {\n\t\t\tvalue -= 0x10000;\n\t\t\toutput += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);\n\t\t\tvalue = 0xDC00 | value & 0x3FF;\n\t\t}\n\t\toutput += stringFromCharCode(value);\n\t}\n\treturn output;\n}\n\nfunction checkScalarValue(codePoint, strict) {\n\tif (codePoint >= 0xD800 && codePoint <= 0xDFFF) {\n\t\tif (strict) {\n\t\t\tthrow Error(\n\t\t\t\t'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +\n\t\t\t\t' is not a scalar value'\n\t\t\t);\n\t\t}\n\t\treturn false;\n\t}\n\treturn true;\n}\n/*--------------------------------------------------------------------------*/\n\nfunction createByte(codePoint, shift) {\n\treturn stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);\n}\n\nfunction encodeCodePoint(codePoint, strict) {\n\tif ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence\n\t\treturn stringFromCharCode(codePoint);\n\t}\n\tvar symbol = '';\n\tif ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence\n\t\tsymbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);\n\t}\n\telse if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence\n\t\tif (!checkScalarValue(codePoint, strict)) {\n\t\t\tcodePoint = 0xFFFD;\n\t\t}\n\t\tsymbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);\n\t\tsymbol += createByte(codePoint, 6);\n\t}\n\telse if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence\n\t\tsymbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);\n\t\tsymbol += createByte(codePoint, 12);\n\t\tsymbol += createByte(codePoint, 6);\n\t}\n\tsymbol += stringFromCharCode((codePoint & 0x3F) | 0x80);\n\treturn symbol;\n}\n\nfunction utf8encode(string, opts) {\n\topts = opts || {};\n\tvar strict = false !== opts.strict;\n\n\tvar codePoints = ucs2decode(string);\n\tvar length = codePoints.length;\n\tvar index = -1;\n\tvar codePoint;\n\tvar byteString = '';\n\twhile (++index < length) {\n\t\tcodePoint = codePoints[index];\n\t\tbyteString += encodeCodePoint(codePoint, strict);\n\t}\n\treturn byteString;\n}\n\n/*--------------------------------------------------------------------------*/\n\nfunction readContinuationByte() {\n\tif (byteIndex >= byteCount) {\n\t\tthrow Error('Invalid byte index');\n\t}\n\n\tvar continuationByte = byteArray[byteIndex] & 0xFF;\n\tbyteIndex++;\n\n\tif ((continuationByte & 0xC0) == 0x80) {\n\t\treturn continuationByte & 0x3F;\n\t}\n\n\t// If we end up here, it’s not a continuation byte\n\tthrow Error('Invalid continuation byte');\n}\n\nfunction decodeSymbol(strict) {\n\tvar byte1;\n\tvar byte2;\n\tvar byte3;\n\tvar byte4;\n\tvar codePoint;\n\n\tif (byteIndex > byteCount) {\n\t\tthrow Error('Invalid byte index');\n\t}\n\n\tif (byteIndex == byteCount) {\n\t\treturn false;\n\t}\n\n\t// Read first byte\n\tbyte1 = byteArray[byteIndex] & 0xFF;\n\tbyteIndex++;\n\n\t// 1-byte sequence (no continuation bytes)\n\tif ((byte1 & 0x80) == 0) {\n\t\treturn byte1;\n\t}\n\n\t// 2-byte sequence\n\tif ((byte1 & 0xE0) == 0xC0) {\n\t\tbyte2 = readContinuationByte();\n\t\tcodePoint = ((byte1 & 0x1F) << 6) | byte2;\n\t\tif (codePoint >= 0x80) {\n\t\t\treturn codePoint;\n\t\t} else {\n\t\t\tthrow Error('Invalid continuation byte');\n\t\t}\n\t}\n\n\t// 3-byte sequence (may include unpaired surrogates)\n\tif ((byte1 & 0xF0) == 0xE0) {\n\t\tbyte2 = readContinuationByte();\n\t\tbyte3 = readContinuationByte();\n\t\tcodePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;\n\t\tif (codePoint >= 0x0800) {\n\t\t\treturn checkScalarValue(codePoint, strict) ? codePoint : 0xFFFD;\n\t\t} else {\n\t\t\tthrow Error('Invalid continuation byte');\n\t\t}\n\t}\n\n\t// 4-byte sequence\n\tif ((byte1 & 0xF8) == 0xF0) {\n\t\tbyte2 = readContinuationByte();\n\t\tbyte3 = readContinuationByte();\n\t\tbyte4 = readContinuationByte();\n\t\tcodePoint = ((byte1 & 0x07) << 0x12) | (byte2 << 0x0C) |\n\t\t\t(byte3 << 0x06) | byte4;\n\t\tif (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {\n\t\t\treturn codePoint;\n\t\t}\n\t}\n\n\tthrow Error('Invalid UTF-8 detected');\n}\n\nvar byteArray;\nvar byteCount;\nvar byteIndex;\nfunction utf8decode(byteString, opts) {\n\topts = opts || {};\n\tvar strict = false !== opts.strict;\n\n\tbyteArray = ucs2decode(byteString);\n\tbyteCount = byteArray.length;\n\tbyteIndex = 0;\n\tvar codePoints = [];\n\tvar tmp;\n\twhile ((tmp = decodeSymbol(strict)) !== false) {\n\t\tcodePoints.push(tmp);\n\t}\n\treturn ucs2encode(codePoints);\n}\n\nmodule.exports = {\n\tversion: '2.1.2',\n\tencode: utf8encode,\n\tdecode: utf8decode\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-parser/lib/utf8.js\n// module id = 23\n// module chunks = 0","/*\n * base64-arraybuffer\n * https://github.com/niklasvh/base64-arraybuffer\n *\n * Copyright (c) 2012 Niklas von Hertzen\n * Licensed under the MIT license.\n */\n(function(){\n  \"use strict\";\n\n  var chars = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\";\n\n  // Use a lookup table to find the index.\n  var lookup = new Uint8Array(256);\n  for (var i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n  }\n\n  exports.encode = function(arraybuffer) {\n    var bytes = new Uint8Array(arraybuffer),\n    i, len = bytes.length, base64 = \"\";\n\n    for (i = 0; i < len; i+=3) {\n      base64 += chars[bytes[i] >> 2];\n      base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n      base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n      base64 += chars[bytes[i + 2] & 63];\n    }\n\n    if ((len % 3) === 2) {\n      base64 = base64.substring(0, base64.length - 1) + \"=\";\n    } else if (len % 3 === 1) {\n      base64 = base64.substring(0, base64.length - 2) + \"==\";\n    }\n\n    return base64;\n  };\n\n  exports.decode =  function(base64) {\n    var bufferLength = base64.length * 0.75,\n    len = base64.length, i, p = 0,\n    encoded1, encoded2, encoded3, encoded4;\n\n    if (base64[base64.length - 1] === \"=\") {\n      bufferLength--;\n      if (base64[base64.length - 2] === \"=\") {\n        bufferLength--;\n      }\n    }\n\n    var arraybuffer = new ArrayBuffer(bufferLength),\n    bytes = new Uint8Array(arraybuffer);\n\n    for (i = 0; i < len; i+=4) {\n      encoded1 = lookup[base64.charCodeAt(i)];\n      encoded2 = lookup[base64.charCodeAt(i+1)];\n      encoded3 = lookup[base64.charCodeAt(i+2)];\n      encoded4 = lookup[base64.charCodeAt(i+3)];\n\n      bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n      bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n      bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n\n    return arraybuffer;\n  };\n})();\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/base64-arraybuffer/lib/base64-arraybuffer.js\n// module id = 24\n// module chunks = 0","/**\r\n * Create a blob builder even when vendor prefixes exist\r\n */\r\n\r\nvar BlobBuilder = typeof BlobBuilder !== 'undefined' ? BlobBuilder :\r\n  typeof WebKitBlobBuilder !== 'undefined' ? WebKitBlobBuilder :\r\n  typeof MSBlobBuilder !== 'undefined' ? MSBlobBuilder :\r\n  typeof MozBlobBuilder !== 'undefined' ? MozBlobBuilder : \r\n  false;\r\n\r\n/**\r\n * Check if Blob constructor is supported\r\n */\r\n\r\nvar blobSupported = (function() {\r\n  try {\r\n    var a = new Blob(['hi']);\r\n    return a.size === 2;\r\n  } catch(e) {\r\n    return false;\r\n  }\r\n})();\r\n\r\n/**\r\n * Check if Blob constructor supports ArrayBufferViews\r\n * Fails in Safari 6, so we need to map to ArrayBuffers there.\r\n */\r\n\r\nvar blobSupportsArrayBufferView = blobSupported && (function() {\r\n  try {\r\n    var b = new Blob([new Uint8Array([1,2])]);\r\n    return b.size === 2;\r\n  } catch(e) {\r\n    return false;\r\n  }\r\n})();\r\n\r\n/**\r\n * Check if BlobBuilder is supported\r\n */\r\n\r\nvar blobBuilderSupported = BlobBuilder\r\n  && BlobBuilder.prototype.append\r\n  && BlobBuilder.prototype.getBlob;\r\n\r\n/**\r\n * Helper function that maps ArrayBufferViews to ArrayBuffers\r\n * Used by BlobBuilder constructor and old browsers that didn't\r\n * support it in the Blob constructor.\r\n */\r\n\r\nfunction mapArrayBufferViews(ary) {\r\n  return ary.map(function(chunk) {\r\n    if (chunk.buffer instanceof ArrayBuffer) {\r\n      var buf = chunk.buffer;\r\n\r\n      // if this is a subarray, make a copy so we only\r\n      // include the subarray region from the underlying buffer\r\n      if (chunk.byteLength !== buf.byteLength) {\r\n        var copy = new Uint8Array(chunk.byteLength);\r\n        copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));\r\n        buf = copy.buffer;\r\n      }\r\n\r\n      return buf;\r\n    }\r\n\r\n    return chunk;\r\n  });\r\n}\r\n\r\nfunction BlobBuilderConstructor(ary, options) {\r\n  options = options || {};\r\n\r\n  var bb = new BlobBuilder();\r\n  mapArrayBufferViews(ary).forEach(function(part) {\r\n    bb.append(part);\r\n  });\r\n\r\n  return (options.type) ? bb.getBlob(options.type) : bb.getBlob();\r\n};\r\n\r\nfunction BlobConstructor(ary, options) {\r\n  return new Blob(mapArrayBufferViews(ary), options || {});\r\n};\r\n\r\nif (typeof Blob !== 'undefined') {\r\n  BlobBuilderConstructor.prototype = Blob.prototype;\r\n  BlobConstructor.prototype = Blob.prototype;\r\n}\r\n\r\nmodule.exports = (function() {\r\n  if (blobSupported) {\r\n    return blobSupportsArrayBufferView ? Blob : BlobConstructor;\r\n  } else if (blobBuilderSupported) {\r\n    return BlobBuilderConstructor;\r\n  } else {\r\n    return undefined;\r\n  }\r\n})();\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/blob/index.js\n// module id = 25\n// module chunks = 0","/**\r\n * Compiles a querystring\r\n * Returns string representation of the object\r\n *\r\n * @param {Object}\r\n * @api private\r\n */\r\n\r\nexports.encode = function (obj) {\r\n  var str = '';\r\n\r\n  for (var i in obj) {\r\n    if (obj.hasOwnProperty(i)) {\r\n      if (str.length) str += '&';\r\n      str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\r\n    }\r\n  }\r\n\r\n  return str;\r\n};\r\n\r\n/**\r\n * Parses a simple querystring into an object\r\n *\r\n * @param {String} qs\r\n * @api private\r\n */\r\n\r\nexports.decode = function(qs){\r\n  var qry = {};\r\n  var pairs = qs.split('&');\r\n  for (var i = 0, l = pairs.length; i < l; i++) {\r\n    var pair = pairs[i].split('=');\r\n    qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\r\n  }\r\n  return qry;\r\n};\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/parseqs/index.js\n// module id = 26\n// module chunks = 0","\nmodule.exports = function(a, b){\n  var fn = function(){};\n  fn.prototype = b.prototype;\n  a.prototype = new fn;\n  a.prototype.constructor = a;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/component-inherit/index.js\n// module id = 27\n// module chunks = 0","'use strict';\n\nvar alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('')\n  , length = 64\n  , map = {}\n  , seed = 0\n  , i = 0\n  , prev;\n\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nfunction encode(num) {\n  var encoded = '';\n\n  do {\n    encoded = alphabet[num % length] + encoded;\n    num = Math.floor(num / length);\n  } while (num > 0);\n\n  return encoded;\n}\n\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nfunction decode(str) {\n  var decoded = 0;\n\n  for (i = 0; i < str.length; i++) {\n    decoded = decoded * length + map[str.charAt(i)];\n  }\n\n  return decoded;\n}\n\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nfunction yeast() {\n  var now = encode(+new Date());\n\n  if (now !== prev) return seed = 0, prev = now;\n  return now +'.'+ encode(seed++);\n}\n\n//\n// Map each character to its index.\n//\nfor (; i < length; i++) map[alphabet[i]] = i;\n\n//\n// Expose the `yeast`, `encode` and `decode` functions.\n//\nyeast.encode = encode;\nyeast.decode = decode;\nmodule.exports = yeast;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/yeast/index.js\n// module id = 28\n// module chunks = 0","/**\n * Module requirements.\n */\n\nvar Polling = require('./polling');\nvar inherit = require('component-inherit');\n\n/**\n * Module exports.\n */\n\nmodule.exports = JSONPPolling;\n\n/**\n * Cached regular expressions.\n */\n\nvar rNewline = /\\n/g;\nvar rEscapedNewline = /\\\\n/g;\n\n/**\n * Global JSONP callbacks.\n */\n\nvar callbacks;\n\n/**\n * Noop.\n */\n\nfunction empty () { }\n\n/**\n * Until https://github.com/tc39/proposal-global is shipped.\n */\nfunction glob () {\n  return typeof self !== 'undefined' ? self\n      : typeof window !== 'undefined' ? window\n      : typeof global !== 'undefined' ? global : {};\n}\n\n/**\n * JSONP Polling constructor.\n *\n * @param {Object} opts.\n * @api public\n */\n\nfunction JSONPPolling (opts) {\n  Polling.call(this, opts);\n\n  this.query = this.query || {};\n\n  // define global callbacks array if not present\n  // we do this here (lazily) to avoid unneeded global pollution\n  if (!callbacks) {\n    // we need to consider multiple engines in the same page\n    var global = glob();\n    callbacks = global.___eio = (global.___eio || []);\n  }\n\n  // callback identifier\n  this.index = callbacks.length;\n\n  // add callback to jsonp global\n  var self = this;\n  callbacks.push(function (msg) {\n    self.onData(msg);\n  });\n\n  // append to query string\n  this.query.j = this.index;\n\n  // prevent spurious errors from being emitted when the window is unloaded\n  if (typeof addEventListener === 'function') {\n    addEventListener('beforeunload', function () {\n      if (self.script) self.script.onerror = empty;\n    }, false);\n  }\n}\n\n/**\n * Inherits from Polling.\n */\n\ninherit(JSONPPolling, Polling);\n\n/*\n * JSONP only supports binary as base64 encoded strings\n */\n\nJSONPPolling.prototype.supportsBinary = false;\n\n/**\n * Closes the socket.\n *\n * @api private\n */\n\nJSONPPolling.prototype.doClose = function () {\n  if (this.script) {\n    this.script.parentNode.removeChild(this.script);\n    this.script = null;\n  }\n\n  if (this.form) {\n    this.form.parentNode.removeChild(this.form);\n    this.form = null;\n    this.iframe = null;\n  }\n\n  Polling.prototype.doClose.call(this);\n};\n\n/**\n * Starts a poll cycle.\n *\n * @api private\n */\n\nJSONPPolling.prototype.doPoll = function () {\n  var self = this;\n  var script = document.createElement('script');\n\n  if (this.script) {\n    this.script.parentNode.removeChild(this.script);\n    this.script = null;\n  }\n\n  script.async = true;\n  script.src = this.uri();\n  script.onerror = function (e) {\n    self.onError('jsonp poll error', e);\n  };\n\n  var insertAt = document.getElementsByTagName('script')[0];\n  if (insertAt) {\n    insertAt.parentNode.insertBefore(script, insertAt);\n  } else {\n    (document.head || document.body).appendChild(script);\n  }\n  this.script = script;\n\n  var isUAgecko = 'undefined' !== typeof navigator && /gecko/i.test(navigator.userAgent);\n\n  if (isUAgecko) {\n    setTimeout(function () {\n      var iframe = document.createElement('iframe');\n      document.body.appendChild(iframe);\n      document.body.removeChild(iframe);\n    }, 100);\n  }\n};\n\n/**\n * Writes with a hidden iframe.\n *\n * @param {String} data to send\n * @param {Function} called upon flush.\n * @api private\n */\n\nJSONPPolling.prototype.doWrite = function (data, fn) {\n  var self = this;\n\n  if (!this.form) {\n    var form = document.createElement('form');\n    var area = document.createElement('textarea');\n    var id = this.iframeId = 'eio_iframe_' + this.index;\n    var iframe;\n\n    form.className = 'socketio';\n    form.style.position = 'absolute';\n    form.style.top = '-1000px';\n    form.style.left = '-1000px';\n    form.target = id;\n    form.method = 'POST';\n    form.setAttribute('accept-charset', 'utf-8');\n    area.name = 'd';\n    form.appendChild(area);\n    document.body.appendChild(form);\n\n    this.form = form;\n    this.area = area;\n  }\n\n  this.form.action = this.uri();\n\n  function complete () {\n    initIframe();\n    fn();\n  }\n\n  function initIframe () {\n    if (self.iframe) {\n      try {\n        self.form.removeChild(self.iframe);\n      } catch (e) {\n        self.onError('jsonp polling iframe removal error', e);\n      }\n    }\n\n    try {\n      // ie6 dynamic iframes with target=\"\" support (thanks Chris Lambacher)\n      var html = '<iframe src=\"javascript:0\" name=\"' + self.iframeId + '\">';\n      iframe = document.createElement(html);\n    } catch (e) {\n      iframe = document.createElement('iframe');\n      iframe.name = self.iframeId;\n      iframe.src = 'javascript:0';\n    }\n\n    iframe.id = self.iframeId;\n\n    self.form.appendChild(iframe);\n    self.iframe = iframe;\n  }\n\n  initIframe();\n\n  // escape \\n to prevent it from being converted into \\r\\n by some UAs\n  // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side\n  data = data.replace(rEscapedNewline, '\\\\\\n');\n  this.area.value = data.replace(rNewline, '\\\\n');\n\n  try {\n    this.form.submit();\n  } catch (e) {}\n\n  if (this.iframe.attachEvent) {\n    this.iframe.onreadystatechange = function () {\n      if (self.iframe.readyState === 'complete') {\n        complete();\n      }\n    };\n  } else {\n    this.iframe.onload = complete;\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/polling-jsonp.js\n// module id = 29\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar Transport = require('../transport');\nvar parser = require('engine.io-parser');\nvar parseqs = require('parseqs');\nvar inherit = require('component-inherit');\nvar yeast = require('yeast');\nvar debug = require('debug')('engine.io-client:websocket');\nvar BrowserWebSocket, NodeWebSocket;\nif (typeof self === 'undefined') {\n  try {\n    NodeWebSocket = require('ws');\n  } catch (e) { }\n} else {\n  BrowserWebSocket = self.WebSocket || self.MozWebSocket;\n}\n\n/**\n * Get either the `WebSocket` or `MozWebSocket` globals\n * in the browser or try to resolve WebSocket-compatible\n * interface exposed by `ws` for Node-like environment.\n */\n\nvar WebSocket = BrowserWebSocket || NodeWebSocket;\n\n/**\n * Module exports.\n */\n\nmodule.exports = WS;\n\n/**\n * WebSocket transport constructor.\n *\n * @api {Object} connection options\n * @api public\n */\n\nfunction WS (opts) {\n  var forceBase64 = (opts && opts.forceBase64);\n  if (forceBase64) {\n    this.supportsBinary = false;\n  }\n  this.perMessageDeflate = opts.perMessageDeflate;\n  this.usingBrowserWebSocket = BrowserWebSocket && !opts.forceNode;\n  this.protocols = opts.protocols;\n  if (!this.usingBrowserWebSocket) {\n    WebSocket = NodeWebSocket;\n  }\n  Transport.call(this, opts);\n}\n\n/**\n * Inherits from Transport.\n */\n\ninherit(WS, Transport);\n\n/**\n * Transport name.\n *\n * @api public\n */\n\nWS.prototype.name = 'websocket';\n\n/*\n * WebSockets support binary\n */\n\nWS.prototype.supportsBinary = true;\n\n/**\n * Opens socket.\n *\n * @api private\n */\n\nWS.prototype.doOpen = function () {\n  if (!this.check()) {\n    // let probe timeout\n    return;\n  }\n\n  var uri = this.uri();\n  var protocols = this.protocols;\n  var opts = {\n    agent: this.agent,\n    perMessageDeflate: this.perMessageDeflate\n  };\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n  if (this.extraHeaders) {\n    opts.headers = this.extraHeaders;\n  }\n  if (this.localAddress) {\n    opts.localAddress = this.localAddress;\n  }\n\n  try {\n    this.ws = this.usingBrowserWebSocket && !this.isReactNative ? (protocols ? new WebSocket(uri, protocols) : new WebSocket(uri)) : new WebSocket(uri, protocols, opts);\n  } catch (err) {\n    return this.emit('error', err);\n  }\n\n  if (this.ws.binaryType === undefined) {\n    this.supportsBinary = false;\n  }\n\n  if (this.ws.supports && this.ws.supports.binary) {\n    this.supportsBinary = true;\n    this.ws.binaryType = 'nodebuffer';\n  } else {\n    this.ws.binaryType = 'arraybuffer';\n  }\n\n  this.addEventListeners();\n};\n\n/**\n * Adds event listeners to the socket\n *\n * @api private\n */\n\nWS.prototype.addEventListeners = function () {\n  var self = this;\n\n  this.ws.onopen = function () {\n    self.onOpen();\n  };\n  this.ws.onclose = function () {\n    self.onClose();\n  };\n  this.ws.onmessage = function (ev) {\n    self.onData(ev.data);\n  };\n  this.ws.onerror = function (e) {\n    self.onError('websocket error', e);\n  };\n};\n\n/**\n * Writes data to socket.\n *\n * @param {Array} array of packets.\n * @api private\n */\n\nWS.prototype.write = function (packets) {\n  var self = this;\n  this.writable = false;\n\n  // encodePacket efficient as it uses WS framing\n  // no need for encodePayload\n  var total = packets.length;\n  for (var i = 0, l = total; i < l; i++) {\n    (function (packet) {\n      parser.encodePacket(packet, self.supportsBinary, function (data) {\n        if (!self.usingBrowserWebSocket) {\n          // always create a new object (GH-437)\n          var opts = {};\n          if (packet.options) {\n            opts.compress = packet.options.compress;\n          }\n\n          if (self.perMessageDeflate) {\n            var len = 'string' === typeof data ? Buffer.byteLength(data) : data.length;\n            if (len < self.perMessageDeflate.threshold) {\n              opts.compress = false;\n            }\n          }\n        }\n\n        // Sometimes the websocket has already been closed but the browser didn't\n        // have a chance of informing us about it yet, in that case send will\n        // throw an error\n        try {\n          if (self.usingBrowserWebSocket) {\n            // TypeError is thrown when passing the second argument on Safari\n            self.ws.send(data);\n          } else {\n            self.ws.send(data, opts);\n          }\n        } catch (e) {\n\n        }\n\n        --total || done();\n      });\n    })(packets[i]);\n  }\n\n  function done () {\n    self.emit('flush');\n\n    // fake drain\n    // defer to next tick to allow Socket to clear writeBuffer\n    setTimeout(function () {\n      self.writable = true;\n      self.emit('drain');\n    }, 0);\n  }\n};\n\n/**\n * Called upon close\n *\n * @api private\n */\n\nWS.prototype.onClose = function () {\n  Transport.prototype.onClose.call(this);\n};\n\n/**\n * Closes socket.\n *\n * @api private\n */\n\nWS.prototype.doClose = function () {\n  if (typeof this.ws !== 'undefined') {\n    this.ws.close();\n  }\n};\n\n/**\n * Generates uri for connection.\n *\n * @api private\n */\n\nWS.prototype.uri = function () {\n  var query = this.query || {};\n  var schema = this.secure ? 'wss' : 'ws';\n  var port = '';\n\n  // avoid port if default for schema\n  if (this.port && (('wss' === schema && Number(this.port) !== 443) ||\n    ('ws' === schema && Number(this.port) !== 80))) {\n    port = ':' + this.port;\n  }\n\n  // append timestamp to URI\n  if (this.timestampRequests) {\n    query[this.timestampParam] = yeast();\n  }\n\n  // communicate binary support capabilities\n  if (!this.supportsBinary) {\n    query.b64 = 1;\n  }\n\n  query = parseqs.encode(query);\n\n  // prepend ? to query\n  if (query.length) {\n    query = '?' + query;\n  }\n\n  var ipv6 = this.hostname.indexOf(':') !== -1;\n  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;\n};\n\n/**\n * Feature detection for WebSocket.\n *\n * @return {Boolean} whether this transport is available.\n * @api public\n */\n\nWS.prototype.check = function () {\n  return !!WebSocket && !('__initialize' in WebSocket && this.name === WS.prototype.name);\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/websocket.js\n// module id = 30\n// module chunks = 0","/* (ignored) */\n\n\n//////////////////\n// WEBPACK FOOTER\n// ws (ignored)\n// module id = 31\n// module chunks = 0","\nvar indexOf = [].indexOf;\n\nmodule.exports = function(arr, obj){\n  if (indexOf) return arr.indexOf(obj);\n  for (var i = 0; i < arr.length; ++i) {\n    if (arr[i] === obj) return i;\n  }\n  return -1;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/indexof/index.js\n// module id = 32\n// module chunks = 0","\n/**\n * Module dependencies.\n */\n\nvar parser = require('socket.io-parser');\nvar Emitter = require('component-emitter');\nvar toArray = require('to-array');\nvar on = require('./on');\nvar bind = require('component-bind');\nvar debug = require('debug')('socket.io-client:socket');\nvar parseqs = require('parseqs');\nvar hasBin = require('has-binary2');\n\n/**\n * Module exports.\n */\n\nmodule.exports = exports = Socket;\n\n/**\n * Internal events (blacklisted).\n * These events can't be emitted by the user.\n *\n * @api private\n */\n\nvar events = {\n  connect: 1,\n  connect_error: 1,\n  connect_timeout: 1,\n  connecting: 1,\n  disconnect: 1,\n  error: 1,\n  reconnect: 1,\n  reconnect_attempt: 1,\n  reconnect_failed: 1,\n  reconnect_error: 1,\n  reconnecting: 1,\n  ping: 1,\n  pong: 1\n};\n\n/**\n * Shortcut to `Emitter#emit`.\n */\n\nvar emit = Emitter.prototype.emit;\n\n/**\n * `Socket` constructor.\n *\n * @api public\n */\n\nfunction Socket (io, nsp, opts) {\n  this.io = io;\n  this.nsp = nsp;\n  this.json = this; // compat\n  this.ids = 0;\n  this.acks = {};\n  this.receiveBuffer = [];\n  this.sendBuffer = [];\n  this.connected = false;\n  this.disconnected = true;\n  this.flags = {};\n  if (opts && opts.query) {\n    this.query = opts.query;\n  }\n  if (this.io.autoConnect) this.open();\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Socket.prototype);\n\n/**\n * Subscribe to open, close and packet events\n *\n * @api private\n */\n\nSocket.prototype.subEvents = function () {\n  if (this.subs) return;\n\n  var io = this.io;\n  this.subs = [\n    on(io, 'open', bind(this, 'onopen')),\n    on(io, 'packet', bind(this, 'onpacket')),\n    on(io, 'close', bind(this, 'onclose'))\n  ];\n};\n\n/**\n * \"Opens\" the socket.\n *\n * @api public\n */\n\nSocket.prototype.open =\nSocket.prototype.connect = function () {\n  if (this.connected) return this;\n\n  this.subEvents();\n  this.io.open(); // ensure open\n  if ('open' === this.io.readyState) this.onopen();\n  this.emit('connecting');\n  return this;\n};\n\n/**\n * Sends a `message` event.\n *\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.send = function () {\n  var args = toArray(arguments);\n  args.unshift('message');\n  this.emit.apply(this, args);\n  return this;\n};\n\n/**\n * Override `emit`.\n * If the event is in `events`, it's emitted normally.\n *\n * @param {String} event name\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.emit = function (ev) {\n  if (events.hasOwnProperty(ev)) {\n    emit.apply(this, arguments);\n    return this;\n  }\n\n  var args = toArray(arguments);\n  var packet = {\n    type: (this.flags.binary !== undefined ? this.flags.binary : hasBin(args)) ? parser.BINARY_EVENT : parser.EVENT,\n    data: args\n  };\n\n  packet.options = {};\n  packet.options.compress = !this.flags || false !== this.flags.compress;\n\n  // event ack callback\n  if ('function' === typeof args[args.length - 1]) {\n\n    this.acks[this.ids] = args.pop();\n    packet.id = this.ids++;\n  }\n\n  if (this.connected) {\n    this.packet(packet);\n  } else {\n    this.sendBuffer.push(packet);\n  }\n\n  this.flags = {};\n\n  return this;\n};\n\n/**\n * Sends a packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.packet = function (packet) {\n  packet.nsp = this.nsp;\n  this.io.packet(packet);\n};\n\n/**\n * Called upon engine `open`.\n *\n * @api private\n */\n\nSocket.prototype.onopen = function () {\n\n\n  // write connect packet if necessary\n  if ('/' !== this.nsp) {\n    if (this.query) {\n      var query = typeof this.query === 'object' ? parseqs.encode(this.query) : this.query;\n\n      this.packet({type: parser.CONNECT, query: query});\n    } else {\n      this.packet({type: parser.CONNECT});\n    }\n  }\n};\n\n/**\n * Called upon engine `close`.\n *\n * @param {String} reason\n * @api private\n */\n\nSocket.prototype.onclose = function (reason) {\n\n  this.connected = false;\n  this.disconnected = true;\n  delete this.id;\n  this.emit('disconnect', reason);\n};\n\n/**\n * Called with socket packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onpacket = function (packet) {\n  var sameNamespace = packet.nsp === this.nsp;\n  var rootNamespaceError = packet.type === parser.ERROR && packet.nsp === '/';\n\n  if (!sameNamespace && !rootNamespaceError) return;\n\n  switch (packet.type) {\n    case parser.CONNECT:\n      this.onconnect();\n      break;\n\n    case parser.EVENT:\n      this.onevent(packet);\n      break;\n\n    case parser.BINARY_EVENT:\n      this.onevent(packet);\n      break;\n\n    case parser.ACK:\n      this.onack(packet);\n      break;\n\n    case parser.BINARY_ACK:\n      this.onack(packet);\n      break;\n\n    case parser.DISCONNECT:\n      this.ondisconnect();\n      break;\n\n    case parser.ERROR:\n      this.emit('error', packet.data);\n      break;\n  }\n};\n\n/**\n * Called upon a server event.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onevent = function (packet) {\n  var args = packet.data || [];\n\n\n  if (null != packet.id) {\n\n    args.push(this.ack(packet.id));\n  }\n\n  if (this.connected) {\n    emit.apply(this, args);\n  } else {\n    this.receiveBuffer.push(args);\n  }\n};\n\n/**\n * Produces an ack callback to emit with an event.\n *\n * @api private\n */\n\nSocket.prototype.ack = function (id) {\n  var self = this;\n  var sent = false;\n  return function () {\n    // prevent double callbacks\n    if (sent) return;\n    sent = true;\n    var args = toArray(arguments);\n\n\n    self.packet({\n      type: hasBin(args) ? parser.BINARY_ACK : parser.ACK,\n      id: id,\n      data: args\n    });\n  };\n};\n\n/**\n * Called upon a server acknowlegement.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onack = function (packet) {\n  var ack = this.acks[packet.id];\n  if ('function' === typeof ack) {\n\n    ack.apply(this, packet.data);\n    delete this.acks[packet.id];\n  } else {\n\n  }\n};\n\n/**\n * Called upon server connect.\n *\n * @api private\n */\n\nSocket.prototype.onconnect = function () {\n  this.connected = true;\n  this.disconnected = false;\n  this.emit('connect');\n  this.emitBuffered();\n};\n\n/**\n * Emit buffered events (received and emitted).\n *\n * @api private\n */\n\nSocket.prototype.emitBuffered = function () {\n  var i;\n  for (i = 0; i < this.receiveBuffer.length; i++) {\n    emit.apply(this, this.receiveBuffer[i]);\n  }\n  this.receiveBuffer = [];\n\n  for (i = 0; i < this.sendBuffer.length; i++) {\n    this.packet(this.sendBuffer[i]);\n  }\n  this.sendBuffer = [];\n};\n\n/**\n * Called upon server disconnect.\n *\n * @api private\n */\n\nSocket.prototype.ondisconnect = function () {\n\n  this.destroy();\n  this.onclose('io server disconnect');\n};\n\n/**\n * Called upon forced client/server side disconnections,\n * this method ensures the manager stops tracking us and\n * that reconnections don't get triggered for this.\n *\n * @api private.\n */\n\nSocket.prototype.destroy = function () {\n  if (this.subs) {\n    // clean subscriptions to avoid reconnections\n    for (var i = 0; i < this.subs.length; i++) {\n      this.subs[i].destroy();\n    }\n    this.subs = null;\n  }\n\n  this.io.destroy(this);\n};\n\n/**\n * Disconnects the socket manually.\n *\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.close =\nSocket.prototype.disconnect = function () {\n  if (this.connected) {\n\n    this.packet({ type: parser.DISCONNECT });\n  }\n\n  // remove socket from pool\n  this.destroy();\n\n  if (this.connected) {\n    // fire events\n    this.onclose('io client disconnect');\n  }\n  return this;\n};\n\n/**\n * Sets the compress flag.\n *\n * @param {Boolean} if `true`, compresses the sending data\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.compress = function (compress) {\n  this.flags.compress = compress;\n  return this;\n};\n\n/**\n * Sets the binary flag\n *\n * @param {Boolean} whether the emitted data contains binary\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.binary = function (binary) {\n  this.flags.binary = binary;\n  return this;\n};\n\n\n\n// WEBPACK FOOTER //\n// ./lib/socket.js","module.exports = toArray\n\nfunction toArray(list, index) {\n    var array = []\n\n    index = index || 0\n\n    for (var i = index || 0; i < list.length; i++) {\n        array[i - index] = list[i]\n    }\n\n    return array\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/to-array/index.js\n// module id = 34\n// module chunks = 0","\n/**\n * Module exports.\n */\n\nmodule.exports = on;\n\n/**\n * Helper for subscriptions.\n *\n * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`\n * @param {String} event name\n * @param {Function} callback\n * @api public\n */\n\nfunction on (obj, ev, fn) {\n  obj.on(ev, fn);\n  return {\n    destroy: function () {\n      obj.removeListener(ev, fn);\n    }\n  };\n}\n\n\n\n// WEBPACK FOOTER //\n// ./lib/on.js","/**\n * Slice reference.\n */\n\nvar slice = [].slice;\n\n/**\n * Bind `obj` to `fn`.\n *\n * @param {Object} obj\n * @param {Function|String} fn or string\n * @return {Function}\n * @api public\n */\n\nmodule.exports = function(obj, fn){\n  if ('string' == typeof fn) fn = obj[fn];\n  if ('function' != typeof fn) throw new Error('bind() requires a function');\n  var args = slice.call(arguments, 2);\n  return function(){\n    return fn.apply(obj, args.concat(slice.call(arguments)));\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/component-bind/index.js\n// module id = 36\n// module chunks = 0","\n/**\n * Expose `Backoff`.\n */\n\nmodule.exports = Backoff;\n\n/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\n\nfunction Backoff(opts) {\n  opts = opts || {};\n  this.ms = opts.min || 100;\n  this.max = opts.max || 10000;\n  this.factor = opts.factor || 2;\n  this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n  this.attempts = 0;\n}\n\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\n\nBackoff.prototype.duration = function(){\n  var ms = this.ms * Math.pow(this.factor, this.attempts++);\n  if (this.jitter) {\n    var rand =  Math.random();\n    var deviation = Math.floor(rand * this.jitter * ms);\n    ms = (Math.floor(rand * 10) & 1) == 0  ? ms - deviation : ms + deviation;\n  }\n  return Math.min(ms, this.max) | 0;\n};\n\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\n\nBackoff.prototype.reset = function(){\n  this.attempts = 0;\n};\n\n/**\n * Set the minimum duration\n *\n * @api public\n */\n\nBackoff.prototype.setMin = function(min){\n  this.ms = min;\n};\n\n/**\n * Set the maximum duration\n *\n * @api public\n */\n\nBackoff.prototype.setMax = function(max){\n  this.max = max;\n};\n\n/**\n * Set the jitter\n *\n * @api public\n */\n\nBackoff.prototype.setJitter = function(jitter){\n  this.jitter = jitter;\n};\n\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/backo2/index.js\n// module id = 37\n// module chunks = 0"],"sourceRoot":""}
\ No newline at end of file
diff --git a/helloworld/node_modules/socket.io-client/dist/socket.io.slim.js b/helloworld/node_modules/socket.io-client/dist/socket.io.slim.js
new file mode 100755
index 0000000..3ec31a1
--- /dev/null
+++ b/helloworld/node_modules/socket.io-client/dist/socket.io.slim.js
@@ -0,0 +1,9 @@
+/*!
+ * Socket.IO v2.2.0
+ * (c) 2014-2018 Guillermo Rauch
+ * Released under the MIT License.
+ */
+!function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):"object"==typeof exports?exports.io=e():t.io=e()}(this,function(){return function(t){function e(n){if(r[n])return r[n].exports;var o=r[n]={exports:{},id:n,loaded:!1};return t[n].call(o.exports,o,o.exports,e),o.loaded=!0,o.exports}var r={};return e.m=t,e.c=r,e.p="",e(0)}([function(t,e,r){"use strict";function n(t,e){"object"===("undefined"==typeof t?"undefined":o(t))&&(e=t,t=void 0),e=e||{};var r,n=i(t),s=n.source,p=n.id,h=n.path,u=c[p]&&h in c[p].nsps,f=e.forceNew||e["force new connection"]||!1===e.multiplex||u;return f?r=a(s,e):(c[p]||(c[p]=a(s,e)),r=c[p]),n.query&&!e.query&&(e.query=n.query),r.socket(n.path,e)}var o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},i=r(1),s=r(4),a=r(9);r(3)("socket.io-client");t.exports=e=n;var c=e.managers={};e.protocol=s.protocol,e.connect=n,e.Manager=r(9),e.Socket=r(33)},function(t,e,r){"use strict";function n(t,e){var r=t;e=e||"undefined"!=typeof location&&location,null==t&&(t=e.protocol+"//"+e.host),"string"==typeof t&&("/"===t.charAt(0)&&(t="/"===t.charAt(1)?e.protocol+t:e.host+t),/^(https?|wss?):\/\//.test(t)||(t="undefined"!=typeof e?e.protocol+"//"+t:"https://"+t),r=o(t)),r.port||(/^(http|ws)$/.test(r.protocol)?r.port="80":/^(http|ws)s$/.test(r.protocol)&&(r.port="443")),r.path=r.path||"/";var n=r.host.indexOf(":")!==-1,i=n?"["+r.host+"]":r.host;return r.id=r.protocol+"://"+i+":"+r.port,r.href=r.protocol+"://"+i+(e&&e.port===r.port?"":":"+r.port),r}var o=r(2);r(3)("socket.io-client:url");t.exports=n},function(t,e){var r=/^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/,n=["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"];t.exports=function(t){var e=t,o=t.indexOf("["),i=t.indexOf("]");o!=-1&&i!=-1&&(t=t.substring(0,o)+t.substring(o,i).replace(/:/g,";")+t.substring(i,t.length));for(var s=r.exec(t||""),a={},c=14;c--;)a[n[c]]=s[c]||"";return o!=-1&&i!=-1&&(a.source=e,a.host=a.host.substring(1,a.host.length-1).replace(/;/g,":"),a.authority=a.authority.replace("[","").replace("]","").replace(/;/g,":"),a.ipv6uri=!0),a}},function(t,e){"use strict";t.exports=function(){return function(){}}},function(t,e,r){function n(){}function o(t){var r=""+t.type;if(e.BINARY_EVENT!==t.type&&e.BINARY_ACK!==t.type||(r+=t.attachments+"-"),t.nsp&&"/"!==t.nsp&&(r+=t.nsp+","),null!=t.id&&(r+=t.id),null!=t.data){var n=i(t.data);if(n===!1)return m;r+=n}return r}function i(t){try{return JSON.stringify(t)}catch(t){return!1}}function s(t,e){function r(t){var r=l.deconstructPacket(t),n=o(r.packet),i=r.buffers;i.unshift(n),e(i)}l.removeBlobs(t,r)}function a(){this.reconstructor=null}function c(t){var r=0,n={type:Number(t.charAt(0))};if(null==e.types[n.type])return u("unknown packet type "+n.type);if(e.BINARY_EVENT===n.type||e.BINARY_ACK===n.type){for(var o="";"-"!==t.charAt(++r)&&(o+=t.charAt(r),r!=t.length););if(o!=Number(o)||"-"!==t.charAt(r))throw new Error("Illegal attachments");n.attachments=Number(o)}if("/"===t.charAt(r+1))for(n.nsp="";++r;){var i=t.charAt(r);if(","===i)break;if(n.nsp+=i,r===t.length)break}else n.nsp="/";var s=t.charAt(r+1);if(""!==s&&Number(s)==s){for(n.id="";++r;){var i=t.charAt(r);if(null==i||Number(i)!=i){--r;break}if(n.id+=t.charAt(r),r===t.length)break}n.id=Number(n.id)}if(t.charAt(++r)){var a=p(t.substr(r)),c=a!==!1&&(n.type===e.ERROR||d(a));if(!c)return u("invalid payload");n.data=a}return n}function p(t){try{return JSON.parse(t)}catch(t){return!1}}function h(t){this.reconPack=t,this.buffers=[]}function u(t){return{type:e.ERROR,data:"parser error: "+t}}var f=(r(3)("socket.io-parser"),r(5)),l=r(6),d=r(7),y=r(8);e.protocol=4,e.types=["CONNECT","DISCONNECT","EVENT","ACK","ERROR","BINARY_EVENT","BINARY_ACK"],e.CONNECT=0,e.DISCONNECT=1,e.EVENT=2,e.ACK=3,e.ERROR=4,e.BINARY_EVENT=5,e.BINARY_ACK=6,e.Encoder=n,e.Decoder=a;var m=e.ERROR+'"encode error"';n.prototype.encode=function(t,r){if(e.BINARY_EVENT===t.type||e.BINARY_ACK===t.type)s(t,r);else{var n=o(t);r([n])}},f(a.prototype),a.prototype.add=function(t){var r;if("string"==typeof t)r=c(t),e.BINARY_EVENT===r.type||e.BINARY_ACK===r.type?(this.reconstructor=new 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o.data=n(r,e),o.attachments=e.length,{packet:o,buffers:e}},e.reconstructPacket=function(t,e){return t.data=o(t.data,e),t.attachments=void 0,t},e.removeBlobs=function(t,e){function r(t,a,h){if(!t)return t;if(c&&t instanceof Blob||p&&t instanceof File){n++;var u=new FileReader;u.onload=function(){h?h[a]=this.result:o=this.result,--n||e(o)},u.readAsArrayBuffer(t)}else if(i(t))for(var f=0;f<t.length;f++)r(t[f],f,t);else if("object"==typeof t&&!s(t))for(var l in t)r(t[l],l,t)}var n=0,o=t;r(o),n||e(o)}},function(t,e){var r={}.toString;t.exports=Array.isArray||function(t){return"[object Array]"==r.call(t)}},function(t,e){function r(t){return n&&Buffer.isBuffer(t)||o&&(t instanceof ArrayBuffer||i(t))}t.exports=r;var n="function"==typeof Buffer&&"function"==typeof Buffer.isBuffer,o="function"==typeof ArrayBuffer,i=function(t){return"function"==typeof ArrayBuffer.isView?ArrayBuffer.isView(t):t.buffer instanceof ArrayBuffer}},function(t,e,r){"use strict";function n(t,e){if(!(this instanceof n))return new n(t,e);t&&"object"===("undefined"==typeof t?"undefined":o(t))&&(e=t,t=void 0),e=e||{},e.path=e.path||"/socket.io",this.nsps={},this.subs=[],this.opts=e,this.reconnection(e.reconnection!==!1),this.reconnectionAttempts(e.reconnectionAttempts||1/0),this.reconnectionDelay(e.reconnectionDelay||1e3),this.reconnectionDelayMax(e.reconnectionDelayMax||5e3),this.randomizationFactor(e.randomizationFactor||.5),this.backoff=new f({min:this.reconnectionDelay(),max:this.reconnectionDelayMax(),jitter:this.randomizationFactor()}),this.timeout(null==e.timeout?2e4:e.timeout),this.readyState="closed",this.uri=t,this.connecting=[],this.lastPing=null,this.encoding=!1,this.packetBuffer=[];var r=e.parser||c;this.encoder=new r.Encoder,this.decoder=new r.Decoder,this.autoConnect=e.autoConnect!==!1,this.autoConnect&&this.open()}var o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},i=r(10),s=r(33),a=r(5),c=r(4),p=r(35),h=r(36),u=(r(3)("socket.io-client:manager"),r(32)),f=r(37),l=Object.prototype.hasOwnProperty;t.exports=n,n.prototype.emitAll=function(){this.emit.apply(this,arguments);for(var t in this.nsps)l.call(this.nsps,t)&&this.nsps[t].emit.apply(this.nsps[t],arguments)},n.prototype.updateSocketIds=function(){for(var t in this.nsps)l.call(this.nsps,t)&&(this.nsps[t].id=this.generateId(t))},n.prototype.generateId=function(t){return("/"===t?"":t+"#")+this.engine.id},a(n.prototype),n.prototype.reconnection=function(t){return arguments.length?(this._reconnection=!!t,this):this._reconnection},n.prototype.reconnectionAttempts=function(t){return arguments.length?(this._reconnectionAttempts=t,this):this._reconnectionAttempts},n.prototype.reconnectionDelay=function(t){return arguments.length?(this._reconnectionDelay=t,this.backoff&&this.backoff.setMin(t),this):this._reconnectionDelay},n.prototype.randomizationFactor=function(t){return arguments.length?(this._randomizationFactor=t,this.backoff&&this.backoff.setJitter(t),this):this._randomizationFactor},n.prototype.reconnectionDelayMax=function(t){return arguments.length?(this._reconnectionDelayMax=t,this.backoff&&this.backoff.setMax(t),this):this._reconnectionDelayMax},n.prototype.timeout=function(t){return arguments.length?(this._timeout=t,this):this._timeout},n.prototype.maybeReconnectOnOpen=function(){!this.reconnecting&&this._reconnection&&0===this.backoff.attempts&&this.reconnect()},n.prototype.open=n.prototype.connect=function(t,e){if(~this.readyState.indexOf("open"))return this;this.engine=i(this.uri,this.opts);var r=this.engine,n=this;this.readyState="opening",this.skipReconnect=!1;var o=p(r,"open",function(){n.onopen(),t&&t()}),s=p(r,"error",function(e){if(n.cleanup(),n.readyState="closed",n.emitAll("connect_error",e),t){var r=new Error("Connection error");r.data=e,t(r)}else n.maybeReconnectOnOpen()});if(!1!==this._timeout){var a=this._timeout,c=setTimeout(function(){o.destroy(),r.close(),r.emit("error","timeout"),n.emitAll("connect_timeout",a)},a);this.subs.push({destroy:function(){clearTimeout(c)}})}return this.subs.push(o),this.subs.push(s),this},n.prototype.onopen=function(){this.cleanup(),this.readyState="open",this.emit("open");var t=this.engine;this.subs.push(p(t,"data",h(this,"ondata"))),this.subs.push(p(t,"ping",h(this,"onping"))),this.subs.push(p(t,"pong",h(this,"onpong"))),this.subs.push(p(t,"error",h(this,"onerror"))),this.subs.push(p(t,"close",h(this,"onclose"))),this.subs.push(p(this.decoder,"decoded",h(this,"ondecoded")))},n.prototype.onping=function(){this.lastPing=new Date,this.emitAll("ping")},n.prototype.onpong=function(){this.emitAll("pong",new Date-this.lastPing)},n.prototype.ondata=function(t){this.decoder.add(t)},n.prototype.ondecoded=function(t){this.emit("packet",t)},n.prototype.onerror=function(t){this.emitAll("error",t)},n.prototype.socket=function(t,e){function r(){~u(o.connecting,n)||o.connecting.push(n)}var n=this.nsps[t];if(!n){n=new s(this,t,e),this.nsps[t]=n;var o=this;n.on("connecting",r),n.on("connect",function(){n.id=o.generateId(t)}),this.autoConnect&&r()}return n},n.prototype.destroy=function(t){var e=u(this.connecting,t);~e&&this.connecting.splice(e,1),this.connecting.length||this.close()},n.prototype.packet=function(t){var e=this;t.query&&0===t.type&&(t.nsp+="?"+t.query),e.encoding?e.packetBuffer.push(t):(e.encoding=!0,this.encoder.encode(t,function(r){for(var n=0;n<r.length;n++)e.engine.write(r[n],t.options);e.encoding=!1,e.processPacketQueue()}))},n.prototype.processPacketQueue=function(){if(this.packetBuffer.length>0&&!this.encoding){var t=this.packetBuffer.shift();this.packet(t)}},n.prototype.cleanup=function(){for(var t=this.subs.length,e=0;e<t;e++){var r=this.subs.shift();r.destroy()}this.packetBuffer=[],this.encoding=!1,this.lastPing=null,this.decoder.destroy()},n.prototype.close=n.prototype.disconnect=function(){this.skipReconnect=!0,this.reconnecting=!1,"opening"===this.readyState&&this.cleanup(),this.backoff.reset(),this.readyState="closed",this.engine&&this.engine.close()},n.prototype.onclose=function(t){this.cleanup(),this.backoff.reset(),this.readyState="closed",this.emit("close",t),this._reconnection&&!this.skipReconnect&&this.reconnect()},n.prototype.reconnect=function(){if(this.reconnecting||this.skipReconnect)return this;var t=this;if(this.backoff.attempts>=this._reconnectionAttempts)this.backoff.reset(),this.emitAll("reconnect_failed"),this.reconnecting=!1;else{var e=this.backoff.duration();this.reconnecting=!0;var r=setTimeout(function(){t.skipReconnect||(t.emitAll("reconnect_attempt",t.backoff.attempts),t.emitAll("reconnecting",t.backoff.attempts),t.skipReconnect||t.open(function(e){e?(t.reconnecting=!1,t.reconnect(),t.emitAll("reconnect_error",e.data)):t.onreconnect()}))},e);this.subs.push({destroy:function(){clearTimeout(r)}})}},n.prototype.onreconnect=function(){var t=this.backoff.attempts;this.reconnecting=!1,this.backoff.reset(),this.updateSocketIds(),this.emitAll("reconnect",t)}},function(t,e,r){t.exports=r(11),t.exports.parser=r(18)},function(t,e,r){function n(t,e){return this instanceof n?(e=e||{},t&&"object"==typeof t&&(e=t,t=null),t?(t=p(t),e.hostname=t.host,e.secure="https"===t.protocol||"wss"===t.protocol,e.port=t.port,t.query&&(e.query=t.query)):e.host&&(e.hostname=p(e.host).host),this.secure=null!=e.secure?e.secure:"undefined"!=typeof location&&"https:"===location.protocol,e.hostname&&!e.port&&(e.port=this.secure?"443":"80"),this.agent=e.agent||!1,this.hostname=e.hostname||("undefined"!=typeof location?location.hostname:"localhost"),this.port=e.port||("undefined"!=typeof location&&location.port?location.port:this.secure?443:80),this.query=e.query||{},"string"==typeof this.query&&(this.query=h.decode(this.query)),this.upgrade=!1!==e.upgrade,this.path=(e.path||"/engine.io").replace(/\/$/,"")+"/",this.forceJSONP=!!e.forceJSONP,this.jsonp=!1!==e.jsonp,this.forceBase64=!!e.forceBase64,this.enablesXDR=!!e.enablesXDR,this.timestampParam=e.timestampParam||"t",this.timestampRequests=e.timestampRequests,this.transports=e.transports||["polling","websocket"],this.transportOptions=e.transportOptions||{},this.readyState="",this.writeBuffer=[],this.prevBufferLen=0,this.policyPort=e.policyPort||843,this.rememberUpgrade=e.rememberUpgrade||!1,this.binaryType=null,this.onlyBinaryUpgrades=e.onlyBinaryUpgrades,this.perMessageDeflate=!1!==e.perMessageDeflate&&(e.perMessageDeflate||{}),!0===this.perMessageDeflate&&(this.perMessageDeflate={}),this.perMessageDeflate&&null==this.perMessageDeflate.threshold&&(this.perMessageDeflate.threshold=1024),this.pfx=e.pfx||null,this.key=e.key||null,this.passphrase=e.passphrase||null,this.cert=e.cert||null,this.ca=e.ca||null,this.ciphers=e.ciphers||null,this.rejectUnauthorized=void 0===e.rejectUnauthorized||e.rejectUnauthorized,this.forceNode=!!e.forceNode,this.isReactNative="undefined"!=typeof navigator&&"string"==typeof navigator.product&&"reactnative"===navigator.product.toLowerCase(),("undefined"==typeof self||this.isReactNative)&&(e.extraHeaders&&Object.keys(e.extraHeaders).length>0&&(this.extraHeaders=e.extraHeaders),e.localAddress&&(this.localAddress=e.localAddress)),this.id=null,this.upgrades=null,this.pingInterval=null,this.pingTimeout=null,this.pingIntervalTimer=null,this.pingTimeoutTimer=null,void this.open()):new n(t,e)}function o(t){var e={};for(var r in t)t.hasOwnProperty(r)&&(e[r]=t[r]);return e}var i=r(12),s=r(5),a=(r(3)("engine.io-client:socket"),r(32)),c=r(18),p=r(2),h=r(26);t.exports=n,n.priorWebsocketSuccess=!1,s(n.prototype),n.protocol=c.protocol,n.Socket=n,n.Transport=r(17),n.transports=r(12),n.parser=r(18),n.prototype.createTransport=function(t){var e=o(this.query);e.EIO=c.protocol,e.transport=t;var r=this.transportOptions[t]||{};this.id&&(e.sid=this.id);var n=new i[t]({query:e,socket:this,agent:r.agent||this.agent,hostname:r.hostname||this.hostname,port:r.port||this.port,secure:r.secure||this.secure,path:r.path||this.path,forceJSONP:r.forceJSONP||this.forceJSONP,jsonp:r.jsonp||this.jsonp,forceBase64:r.forceBase64||this.forceBase64,enablesXDR:r.enablesXDR||this.enablesXDR,timestampRequests:r.timestampRequests||this.timestampRequests,timestampParam:r.timestampParam||this.timestampParam,policyPort:r.policyPort||this.policyPort,pfx:r.pfx||this.pfx,key:r.key||this.key,passphrase:r.passphrase||this.passphrase,cert:r.cert||this.cert,ca:r.ca||this.ca,ciphers:r.ciphers||this.ciphers,rejectUnauthorized:r.rejectUnauthorized||this.rejectUnauthorized,perMessageDeflate:r.perMessageDeflate||this.perMessageDeflate,extraHeaders:r.extraHeaders||this.extraHeaders,forceNode:r.forceNode||this.forceNode,localAddress:r.localAddress||this.localAddress,requestTimeout:r.requestTimeout||this.requestTimeout,protocols:r.protocols||void 0,isReactNative:this.isReactNative});return n},n.prototype.open=function(){var t;if(this.rememberUpgrade&&n.priorWebsocketSuccess&&this.transports.indexOf("websocket")!==-1)t="websocket";else{if(0===this.transports.length){var e=this;return void setTimeout(function(){e.emit("error","No transports available")},0)}t=this.transports[0]}this.readyState="opening";try{t=this.createTransport(t)}catch(t){return this.transports.shift(),void this.open()}t.open(),this.setTransport(t)},n.prototype.setTransport=function(t){var e=this;this.transport&&this.transport.removeAllListeners(),this.transport=t,t.on("drain",function(){e.onDrain()}).on("packet",function(t){e.onPacket(t)}).on("error",function(t){e.onError(t)}).on("close",function(){e.onClose("transport close")})},n.prototype.probe=function(t){function e(){if(u.onlyBinaryUpgrades){var t=!this.supportsBinary&&u.transport.supportsBinary;h=h||t}h||(p.send([{type:"ping",data:"probe"}]),p.once("packet",function(t){if(!h)if("pong"===t.type&&"probe"===t.data){if(u.upgrading=!0,u.emit("upgrading",p),!p)return;n.priorWebsocketSuccess="websocket"===p.name,u.transport.pause(function(){h||"closed"!==u.readyState&&(c(),u.setTransport(p),p.send([{type:"upgrade"}]),u.emit("upgrade",p),p=null,u.upgrading=!1,u.flush())})}else{var e=new Error("probe error");e.transport=p.name,u.emit("upgradeError",e)}}))}function r(){h||(h=!0,c(),p.close(),p=null)}function o(t){var e=new Error("probe error: "+t);e.transport=p.name,r(),u.emit("upgradeError",e)}function i(){o("transport closed")}function s(){o("socket closed")}function a(t){p&&t.name!==p.name&&r()}function c(){p.removeListener("open",e),p.removeListener("error",o),p.removeListener("close",i),u.removeListener("close",s),u.removeListener("upgrading",a)}var p=this.createTransport(t,{probe:1}),h=!1,u=this;n.priorWebsocketSuccess=!1,p.once("open",e),p.once("error",o),p.once("close",i),this.once("close",s),this.once("upgrading",a),p.open()},n.prototype.onOpen=function(){if(this.readyState="open",n.priorWebsocketSuccess="websocket"===this.transport.name,this.emit("open"),this.flush(),"open"===this.readyState&&this.upgrade&&this.transport.pause)for(var t=0,e=this.upgrades.length;t<e;t++)this.probe(this.upgrades[t])},n.prototype.onPacket=function(t){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState)switch(this.emit("packet",t),this.emit("heartbeat"),t.type){case"open":this.onHandshake(JSON.parse(t.data));break;case"pong":this.setPing(),this.emit("pong");break;case"error":var e=new Error("server error");e.code=t.data,this.onError(e);break;case"message":this.emit("data",t.data),this.emit("message",t.data)}},n.prototype.onHandshake=function(t){this.emit("handshake",t),this.id=t.sid,this.transport.query.sid=t.sid,this.upgrades=this.filterUpgrades(t.upgrades),this.pingInterval=t.pingInterval,this.pingTimeout=t.pingTimeout,this.onOpen(),"closed"!==this.readyState&&(this.setPing(),this.removeListener("heartbeat",this.onHeartbeat),this.on("heartbeat",this.onHeartbeat))},n.prototype.onHeartbeat=function(t){clearTimeout(this.pingTimeoutTimer);var e=this;e.pingTimeoutTimer=setTimeout(function(){"closed"!==e.readyState&&e.onClose("ping timeout")},t||e.pingInterval+e.pingTimeout)},n.prototype.setPing=function(){var t=this;clearTimeout(t.pingIntervalTimer),t.pingIntervalTimer=setTimeout(function(){t.ping(),t.onHeartbeat(t.pingTimeout)},t.pingInterval)},n.prototype.ping=function(){var t=this;this.sendPacket("ping",function(){t.emit("ping")})},n.prototype.onDrain=function(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,0===this.writeBuffer.length?this.emit("drain"):this.flush()},n.prototype.flush=function(){"closed"!==this.readyState&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length&&(this.transport.send(this.writeBuffer),this.prevBufferLen=this.writeBuffer.length,this.emit("flush"))},n.prototype.write=n.prototype.send=function(t,e,r){return this.sendPacket("message",t,e,r),this},n.prototype.sendPacket=function(t,e,r,n){if("function"==typeof e&&(n=e,e=void 0),"function"==typeof r&&(n=r,r=null),"closing"!==this.readyState&&"closed"!==this.readyState){r=r||{},r.compress=!1!==r.compress;var o={type:t,data:e,options:r};this.emit("packetCreate",o),this.writeBuffer.push(o),n&&this.once("flush",n),this.flush()}},n.prototype.close=function(){function t(){n.onClose("forced close"),n.transport.close()}function e(){n.removeListener("upgrade",e),n.removeListener("upgradeError",e),t()}function r(){n.once("upgrade",e),n.once("upgradeError",e)}if("opening"===this.readyState||"open"===this.readyState){this.readyState="closing";var n=this;this.writeBuffer.length?this.once("drain",function(){this.upgrading?r():t()}):this.upgrading?r():t()}return this},n.prototype.onError=function(t){n.priorWebsocketSuccess=!1,this.emit("error",t),this.onClose("transport error",t)},n.prototype.onClose=function(t,e){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState){var r=this;clearTimeout(this.pingIntervalTimer),clearTimeout(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),this.readyState="closed",this.id=null,this.emit("close",t,e),r.writeBuffer=[],r.prevBufferLen=0}},n.prototype.filterUpgrades=function(t){for(var e=[],r=0,n=t.length;r<n;r++)~a(this.transports,t[r])&&e.push(t[r]);return e}},function(t,e,r){function n(t){var e,r=!1,n=!1,a=!1!==t.jsonp;if("undefined"!=typeof location){var c="https:"===location.protocol,p=location.port;p||(p=c?443:80),r=t.hostname!==location.hostname||p!==t.port,n=t.secure!==c}if(t.xdomain=r,t.xscheme=n,e=new o(t),"open"in e&&!t.forceJSONP)return new i(t);if(!a)throw new Error("JSONP disabled");return new s(t)}var o=r(13),i=r(15),s=r(29),a=r(30);e.polling=n,e.websocket=a},function(t,e,r){var n=r(14);t.exports=function(t){var e=t.xdomain,r=t.xscheme,o=t.enablesXDR;try{if("undefined"!=typeof XMLHttpRequest&&(!e||n))return new XMLHttpRequest}catch(t){}try{if("undefined"!=typeof XDomainRequest&&!r&&o)return new XDomainRequest}catch(t){}if(!e)try{return new(self[["Active"].concat("Object").join("X")])("Microsoft.XMLHTTP")}catch(t){}}},function(t,e){try{t.exports="undefined"!=typeof XMLHttpRequest&&"withCredentials"in new XMLHttpRequest}catch(e){t.exports=!1}},function(t,e,r){function n(){}function 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'undefined' : _typeof(uri)) === 'object') {\n\t    opts = uri;\n\t    uri = undefined;\n\t  }\n\t\n\t  opts = opts || {};\n\t\n\t  var parsed = url(uri);\n\t  var source = parsed.source;\n\t  var id = parsed.id;\n\t  var path = parsed.path;\n\t  var sameNamespace = cache[id] && path in cache[id].nsps;\n\t  var newConnection = opts.forceNew || opts['force new connection'] || false === opts.multiplex || sameNamespace;\n\t\n\t  var io;\n\t\n\t  if (newConnection) {\n\t\n\t    io = Manager(source, opts);\n\t  } else {\n\t    if (!cache[id]) {\n\t\n\t      cache[id] = Manager(source, opts);\n\t    }\n\t    io = cache[id];\n\t  }\n\t  if (parsed.query && !opts.query) {\n\t    opts.query = parsed.query;\n\t  }\n\t  return io.socket(parsed.path, opts);\n\t}\n\t\n\t/**\n\t * Protocol version.\n\t *\n\t * @api public\n\t */\n\t\n\texports.protocol = parser.protocol;\n\t\n\t/**\n\t * `connect`.\n\t *\n\t * @param {String} uri\n\t * @api public\n\t */\n\t\n\texports.connect = lookup;\n\t\n\t/**\n\t * Expose constructors for standalone build.\n\t *\n\t * @api public\n\t */\n\t\n\texports.Manager = __webpack_require__(9);\n\texports.Socket = __webpack_require__(33);\n\n/***/ }),\n/* 1 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar parseuri = __webpack_require__(2);\n\tvar debug = __webpack_require__(3)('socket.io-client:url');\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = url;\n\t\n\t/**\n\t * URL parser.\n\t *\n\t * @param {String} url\n\t * @param {Object} An object meant to mimic window.location.\n\t *                 Defaults to window.location.\n\t * @api public\n\t */\n\t\n\tfunction url(uri, loc) {\n\t  var obj = uri;\n\t\n\t  // default to window.location\n\t  loc = loc || typeof location !== 'undefined' && location;\n\t  if (null == uri) uri = loc.protocol + '//' + loc.host;\n\t\n\t  // relative path support\n\t  if ('string' === typeof uri) {\n\t    if ('/' === uri.charAt(0)) {\n\t      if ('/' === uri.charAt(1)) {\n\t        uri = loc.protocol + uri;\n\t      } else {\n\t        uri = loc.host + uri;\n\t      }\n\t    }\n\t\n\t    if (!/^(https?|wss?):\\/\\//.test(uri)) {\n\t\n\t      if ('undefined' !== typeof loc) {\n\t        uri = loc.protocol + '//' + uri;\n\t      } else {\n\t        uri = 'https://' + uri;\n\t      }\n\t    }\n\t\n\t    // parse\n\t\n\t    obj = parseuri(uri);\n\t  }\n\t\n\t  // make sure we treat `localhost:80` and `localhost` equally\n\t  if (!obj.port) {\n\t    if (/^(http|ws)$/.test(obj.protocol)) {\n\t      obj.port = '80';\n\t    } else if (/^(http|ws)s$/.test(obj.protocol)) {\n\t      obj.port = '443';\n\t    }\n\t  }\n\t\n\t  obj.path = obj.path || '/';\n\t\n\t  var ipv6 = obj.host.indexOf(':') !== -1;\n\t  var host = ipv6 ? '[' + obj.host + ']' : obj.host;\n\t\n\t  // define unique id\n\t  obj.id = obj.protocol + '://' + host + ':' + obj.port;\n\t  // define href\n\t  obj.href = obj.protocol + '://' + host + (loc && loc.port === obj.port ? '' : ':' + obj.port);\n\t\n\t  return obj;\n\t}\n\n/***/ }),\n/* 2 */\n/***/ (function(module, exports) {\n\n\t/**\r\n\t * Parses an URI\r\n\t *\r\n\t * @author Steven Levithan <stevenlevithan.com> (MIT license)\r\n\t * @api private\r\n\t */\r\n\t\r\n\tvar re = /^(?:(?![^:@]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\r\n\t\r\n\tvar parts = [\r\n\t    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\r\n\t];\r\n\t\r\n\tmodule.exports = function parseuri(str) {\r\n\t    var src = str,\r\n\t        b = str.indexOf('['),\r\n\t        e = str.indexOf(']');\r\n\t\r\n\t    if (b != -1 && e != -1) {\r\n\t        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\r\n\t    }\r\n\t\r\n\t    var m = re.exec(str || ''),\r\n\t        uri = {},\r\n\t        i = 14;\r\n\t\r\n\t    while (i--) {\r\n\t        uri[parts[i]] = m[i] || '';\r\n\t    }\r\n\t\r\n\t    if (b != -1 && e != -1) {\r\n\t        uri.source = src;\r\n\t        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\r\n\t        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\r\n\t        uri.ipv6uri = true;\r\n\t    }\r\n\t\r\n\t    return uri;\r\n\t};\r\n\n\n/***/ }),\n/* 3 */\n/***/ (function(module, exports) {\n\n\t\"use strict\";\n\t\n\tmodule.exports = function () {\n\t  return function () {};\n\t};\n\n/***/ }),\n/* 4 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar debug = __webpack_require__(3)('socket.io-parser');\n\tvar Emitter = __webpack_require__(5);\n\tvar binary = __webpack_require__(6);\n\tvar isArray = __webpack_require__(7);\n\tvar isBuf = __webpack_require__(8);\n\t\n\t/**\n\t * Protocol version.\n\t *\n\t * @api public\n\t */\n\t\n\texports.protocol = 4;\n\t\n\t/**\n\t * Packet types.\n\t *\n\t * @api public\n\t */\n\t\n\texports.types = [\n\t  'CONNECT',\n\t  'DISCONNECT',\n\t  'EVENT',\n\t  'ACK',\n\t  'ERROR',\n\t  'BINARY_EVENT',\n\t  'BINARY_ACK'\n\t];\n\t\n\t/**\n\t * Packet type `connect`.\n\t *\n\t * @api public\n\t */\n\t\n\texports.CONNECT = 0;\n\t\n\t/**\n\t * Packet type `disconnect`.\n\t *\n\t * @api public\n\t */\n\t\n\texports.DISCONNECT = 1;\n\t\n\t/**\n\t * Packet type `event`.\n\t *\n\t * @api public\n\t */\n\t\n\texports.EVENT = 2;\n\t\n\t/**\n\t * Packet type `ack`.\n\t *\n\t * @api public\n\t */\n\t\n\texports.ACK = 3;\n\t\n\t/**\n\t * Packet type `error`.\n\t *\n\t * @api public\n\t */\n\t\n\texports.ERROR = 4;\n\t\n\t/**\n\t * Packet type 'binary event'\n\t *\n\t * @api public\n\t */\n\t\n\texports.BINARY_EVENT = 5;\n\t\n\t/**\n\t * Packet type `binary ack`. For acks with binary arguments.\n\t *\n\t * @api public\n\t */\n\t\n\texports.BINARY_ACK = 6;\n\t\n\t/**\n\t * Encoder constructor.\n\t *\n\t * @api public\n\t */\n\t\n\texports.Encoder = Encoder;\n\t\n\t/**\n\t * Decoder constructor.\n\t *\n\t * @api public\n\t */\n\t\n\texports.Decoder = Decoder;\n\t\n\t/**\n\t * A socket.io Encoder instance\n\t *\n\t * @api public\n\t */\n\t\n\tfunction Encoder() {}\n\t\n\tvar ERROR_PACKET = exports.ERROR + '\"encode error\"';\n\t\n\t/**\n\t * Encode a packet as a single string if non-binary, or as a\n\t * buffer sequence, depending on packet type.\n\t *\n\t * @param {Object} obj - packet object\n\t * @param {Function} callback - function to handle encodings (likely engine.write)\n\t * @return Calls callback with Array of encodings\n\t * @api public\n\t */\n\t\n\tEncoder.prototype.encode = function(obj, callback){\n\t\n\t\n\t  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {\n\t    encodeAsBinary(obj, callback);\n\t  } else {\n\t    var encoding = encodeAsString(obj);\n\t    callback([encoding]);\n\t  }\n\t};\n\t\n\t/**\n\t * Encode packet as string.\n\t *\n\t * @param {Object} packet\n\t * @return {String} encoded\n\t * @api private\n\t */\n\t\n\tfunction encodeAsString(obj) {\n\t\n\t  // first is type\n\t  var str = '' + obj.type;\n\t\n\t  // attachments if we have them\n\t  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {\n\t    str += obj.attachments + '-';\n\t  }\n\t\n\t  // if we have a namespace other than `/`\n\t  // we append it followed by a comma `,`\n\t  if (obj.nsp && '/' !== obj.nsp) {\n\t    str += obj.nsp + ',';\n\t  }\n\t\n\t  // immediately followed by the id\n\t  if (null != obj.id) {\n\t    str += obj.id;\n\t  }\n\t\n\t  // json data\n\t  if (null != obj.data) {\n\t    var payload = tryStringify(obj.data);\n\t    if (payload !== false) {\n\t      str += payload;\n\t    } else {\n\t      return ERROR_PACKET;\n\t    }\n\t  }\n\t\n\t\n\t  return str;\n\t}\n\t\n\tfunction tryStringify(str) {\n\t  try {\n\t    return JSON.stringify(str);\n\t  } catch(e){\n\t    return false;\n\t  }\n\t}\n\t\n\t/**\n\t * Encode packet as 'buffer sequence' by removing blobs, and\n\t * deconstructing packet into object with placeholders and\n\t * a list of buffers.\n\t *\n\t * @param {Object} packet\n\t * @return {Buffer} encoded\n\t * @api private\n\t */\n\t\n\tfunction encodeAsBinary(obj, callback) {\n\t\n\t  function writeEncoding(bloblessData) {\n\t    var deconstruction = binary.deconstructPacket(bloblessData);\n\t    var pack = encodeAsString(deconstruction.packet);\n\t    var buffers = deconstruction.buffers;\n\t\n\t    buffers.unshift(pack); // add packet info to beginning of data list\n\t    callback(buffers); // write all the buffers\n\t  }\n\t\n\t  binary.removeBlobs(obj, writeEncoding);\n\t}\n\t\n\t/**\n\t * A socket.io Decoder instance\n\t *\n\t * @return {Object} decoder\n\t * @api public\n\t */\n\t\n\tfunction Decoder() {\n\t  this.reconstructor = null;\n\t}\n\t\n\t/**\n\t * Mix in `Emitter` with Decoder.\n\t */\n\t\n\tEmitter(Decoder.prototype);\n\t\n\t/**\n\t * Decodes an encoded packet string into packet JSON.\n\t *\n\t * @param {String} obj - encoded packet\n\t * @return {Object} packet\n\t * @api public\n\t */\n\t\n\tDecoder.prototype.add = function(obj) {\n\t  var packet;\n\t  if (typeof obj === 'string') {\n\t    packet = decodeString(obj);\n\t    if (exports.BINARY_EVENT === packet.type || exports.BINARY_ACK === packet.type) { // binary packet's json\n\t      this.reconstructor = new BinaryReconstructor(packet);\n\t\n\t      // no attachments, labeled binary but no binary data to follow\n\t      if (this.reconstructor.reconPack.attachments === 0) {\n\t        this.emit('decoded', packet);\n\t      }\n\t    } else { // non-binary full packet\n\t      this.emit('decoded', packet);\n\t    }\n\t  } else if (isBuf(obj) || obj.base64) { // raw binary data\n\t    if (!this.reconstructor) {\n\t      throw new Error('got binary data when not reconstructing a packet');\n\t    } else {\n\t      packet = this.reconstructor.takeBinaryData(obj);\n\t      if (packet) { // received final buffer\n\t        this.reconstructor = null;\n\t        this.emit('decoded', packet);\n\t      }\n\t    }\n\t  } else {\n\t    throw new Error('Unknown type: ' + obj);\n\t  }\n\t};\n\t\n\t/**\n\t * Decode a packet String (JSON data)\n\t *\n\t * @param {String} str\n\t * @return {Object} packet\n\t * @api private\n\t */\n\t\n\tfunction decodeString(str) {\n\t  var i = 0;\n\t  // look up type\n\t  var p = {\n\t    type: Number(str.charAt(0))\n\t  };\n\t\n\t  if (null == exports.types[p.type]) {\n\t    return error('unknown packet type ' + p.type);\n\t  }\n\t\n\t  // look up attachments if type binary\n\t  if (exports.BINARY_EVENT === p.type || exports.BINARY_ACK === p.type) {\n\t    var buf = '';\n\t    while (str.charAt(++i) !== '-') {\n\t      buf += str.charAt(i);\n\t      if (i == str.length) break;\n\t    }\n\t    if (buf != Number(buf) || str.charAt(i) !== '-') {\n\t      throw new Error('Illegal attachments');\n\t    }\n\t    p.attachments = Number(buf);\n\t  }\n\t\n\t  // look up namespace (if any)\n\t  if ('/' === str.charAt(i + 1)) {\n\t    p.nsp = '';\n\t    while (++i) {\n\t      var c = str.charAt(i);\n\t      if (',' === c) break;\n\t      p.nsp += c;\n\t      if (i === str.length) break;\n\t    }\n\t  } else {\n\t    p.nsp = '/';\n\t  }\n\t\n\t  // look up id\n\t  var next = str.charAt(i + 1);\n\t  if ('' !== next && Number(next) == next) {\n\t    p.id = '';\n\t    while (++i) {\n\t      var c = str.charAt(i);\n\t      if (null == c || Number(c) != c) {\n\t        --i;\n\t        break;\n\t      }\n\t      p.id += str.charAt(i);\n\t      if (i === str.length) break;\n\t    }\n\t    p.id = Number(p.id);\n\t  }\n\t\n\t  // look up json data\n\t  if (str.charAt(++i)) {\n\t    var payload = tryParse(str.substr(i));\n\t    var isPayloadValid = payload !== false && (p.type === exports.ERROR || isArray(payload));\n\t    if (isPayloadValid) {\n\t      p.data = payload;\n\t    } else {\n\t      return error('invalid payload');\n\t    }\n\t  }\n\t\n\t\n\t  return p;\n\t}\n\t\n\tfunction tryParse(str) {\n\t  try {\n\t    return JSON.parse(str);\n\t  } catch(e){\n\t    return false;\n\t  }\n\t}\n\t\n\t/**\n\t * Deallocates a parser's resources\n\t *\n\t * @api public\n\t */\n\t\n\tDecoder.prototype.destroy = function() {\n\t  if (this.reconstructor) {\n\t    this.reconstructor.finishedReconstruction();\n\t  }\n\t};\n\t\n\t/**\n\t * A manager of a binary event's 'buffer sequence'. Should\n\t * be constructed whenever a packet of type BINARY_EVENT is\n\t * decoded.\n\t *\n\t * @param {Object} packet\n\t * @return {BinaryReconstructor} initialized reconstructor\n\t * @api private\n\t */\n\t\n\tfunction BinaryReconstructor(packet) {\n\t  this.reconPack = packet;\n\t  this.buffers = [];\n\t}\n\t\n\t/**\n\t * Method to be called when binary data received from connection\n\t * after a BINARY_EVENT packet.\n\t *\n\t * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n\t * @return {null | Object} returns null if more binary data is expected or\n\t *   a reconstructed packet object if all buffers have been received.\n\t * @api private\n\t */\n\t\n\tBinaryReconstructor.prototype.takeBinaryData = function(binData) {\n\t  this.buffers.push(binData);\n\t  if (this.buffers.length === this.reconPack.attachments) { // done with buffer list\n\t    var packet = binary.reconstructPacket(this.reconPack, this.buffers);\n\t    this.finishedReconstruction();\n\t    return packet;\n\t  }\n\t  return null;\n\t};\n\t\n\t/**\n\t * Cleans up binary packet reconstruction variables.\n\t *\n\t * @api private\n\t */\n\t\n\tBinaryReconstructor.prototype.finishedReconstruction = function() {\n\t  this.reconPack = null;\n\t  this.buffers = [];\n\t};\n\t\n\tfunction error(msg) {\n\t  return {\n\t    type: exports.ERROR,\n\t    data: 'parser error: ' + msg\n\t  };\n\t}\n\n\n/***/ }),\n/* 5 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t\r\n\t/**\r\n\t * Expose `Emitter`.\r\n\t */\r\n\t\r\n\tif (true) {\r\n\t  module.exports = Emitter;\r\n\t}\r\n\t\r\n\t/**\r\n\t * Initialize a new `Emitter`.\r\n\t *\r\n\t * @api public\r\n\t */\r\n\t\r\n\tfunction Emitter(obj) {\r\n\t  if (obj) return mixin(obj);\r\n\t};\r\n\t\r\n\t/**\r\n\t * Mixin the emitter properties.\r\n\t *\r\n\t * @param {Object} obj\r\n\t * @return {Object}\r\n\t * @api private\r\n\t */\r\n\t\r\n\tfunction mixin(obj) {\r\n\t  for (var key in Emitter.prototype) {\r\n\t    obj[key] = Emitter.prototype[key];\r\n\t  }\r\n\t  return obj;\r\n\t}\r\n\t\r\n\t/**\r\n\t * Listen on the given `event` with `fn`.\r\n\t *\r\n\t * @param {String} event\r\n\t * @param {Function} fn\r\n\t * @return {Emitter}\r\n\t * @api public\r\n\t */\r\n\t\r\n\tEmitter.prototype.on =\r\n\tEmitter.prototype.addEventListener = function(event, fn){\r\n\t  this._callbacks = this._callbacks || {};\r\n\t  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\r\n\t    .push(fn);\r\n\t  return this;\r\n\t};\r\n\t\r\n\t/**\r\n\t * Adds an `event` listener that will be invoked a single\r\n\t * time then automatically removed.\r\n\t *\r\n\t * @param {String} event\r\n\t * @param {Function} fn\r\n\t * @return {Emitter}\r\n\t * @api public\r\n\t */\r\n\t\r\n\tEmitter.prototype.once = function(event, fn){\r\n\t  function on() {\r\n\t    this.off(event, on);\r\n\t    fn.apply(this, arguments);\r\n\t  }\r\n\t\r\n\t  on.fn = fn;\r\n\t  this.on(event, on);\r\n\t  return this;\r\n\t};\r\n\t\r\n\t/**\r\n\t * Remove the given callback for `event` or all\r\n\t * registered callbacks.\r\n\t *\r\n\t * @param {String} event\r\n\t * @param {Function} fn\r\n\t * @return {Emitter}\r\n\t * @api public\r\n\t */\r\n\t\r\n\tEmitter.prototype.off =\r\n\tEmitter.prototype.removeListener =\r\n\tEmitter.prototype.removeAllListeners =\r\n\tEmitter.prototype.removeEventListener = function(event, fn){\r\n\t  this._callbacks = this._callbacks || {};\r\n\t\r\n\t  // all\r\n\t  if (0 == arguments.length) {\r\n\t    this._callbacks = {};\r\n\t    return this;\r\n\t  }\r\n\t\r\n\t  // specific event\r\n\t  var callbacks = this._callbacks['$' + event];\r\n\t  if (!callbacks) return this;\r\n\t\r\n\t  // remove all handlers\r\n\t  if (1 == arguments.length) {\r\n\t    delete this._callbacks['$' + event];\r\n\t    return this;\r\n\t  }\r\n\t\r\n\t  // remove specific handler\r\n\t  var cb;\r\n\t  for (var i = 0; i < callbacks.length; i++) {\r\n\t    cb = callbacks[i];\r\n\t    if (cb === fn || cb.fn === fn) {\r\n\t      callbacks.splice(i, 1);\r\n\t      break;\r\n\t    }\r\n\t  }\r\n\t  return this;\r\n\t};\r\n\t\r\n\t/**\r\n\t * Emit `event` with the given args.\r\n\t *\r\n\t * @param {String} event\r\n\t * @param {Mixed} ...\r\n\t * @return {Emitter}\r\n\t */\r\n\t\r\n\tEmitter.prototype.emit = function(event){\r\n\t  this._callbacks = this._callbacks || {};\r\n\t  var args = [].slice.call(arguments, 1)\r\n\t    , callbacks = this._callbacks['$' + event];\r\n\t\r\n\t  if (callbacks) {\r\n\t    callbacks = callbacks.slice(0);\r\n\t    for (var i = 0, len = callbacks.length; i < len; ++i) {\r\n\t      callbacks[i].apply(this, args);\r\n\t    }\r\n\t  }\r\n\t\r\n\t  return this;\r\n\t};\r\n\t\r\n\t/**\r\n\t * Return array of callbacks for `event`.\r\n\t *\r\n\t * @param {String} event\r\n\t * @return {Array}\r\n\t * @api public\r\n\t */\r\n\t\r\n\tEmitter.prototype.listeners = function(event){\r\n\t  this._callbacks = this._callbacks || {};\r\n\t  return this._callbacks['$' + event] || [];\r\n\t};\r\n\t\r\n\t/**\r\n\t * Check if this emitter has `event` handlers.\r\n\t *\r\n\t * @param {String} event\r\n\t * @return {Boolean}\r\n\t * @api public\r\n\t */\r\n\t\r\n\tEmitter.prototype.hasListeners = function(event){\r\n\t  return !! this.listeners(event).length;\r\n\t};\r\n\n\n/***/ }),\n/* 6 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/*global Blob,File*/\n\t\n\t/**\n\t * Module requirements\n\t */\n\t\n\tvar isArray = __webpack_require__(7);\n\tvar isBuf = __webpack_require__(8);\n\tvar toString = Object.prototype.toString;\n\tvar withNativeBlob = typeof Blob === 'function' || (typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]');\n\tvar withNativeFile = typeof File === 'function' || (typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]');\n\t\n\t/**\n\t * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder.\n\t * Anything with blobs or files should be fed through removeBlobs before coming\n\t * here.\n\t *\n\t * @param {Object} packet - socket.io event packet\n\t * @return {Object} with deconstructed packet and list of buffers\n\t * @api public\n\t */\n\t\n\texports.deconstructPacket = function(packet) {\n\t  var buffers = [];\n\t  var packetData = packet.data;\n\t  var pack = packet;\n\t  pack.data = _deconstructPacket(packetData, buffers);\n\t  pack.attachments = buffers.length; // number of binary 'attachments'\n\t  return {packet: pack, buffers: buffers};\n\t};\n\t\n\tfunction _deconstructPacket(data, buffers) {\n\t  if (!data) return data;\n\t\n\t  if (isBuf(data)) {\n\t    var placeholder = { _placeholder: true, num: buffers.length };\n\t    buffers.push(data);\n\t    return placeholder;\n\t  } else if (isArray(data)) {\n\t    var newData = new Array(data.length);\n\t    for (var i = 0; i < data.length; i++) {\n\t      newData[i] = _deconstructPacket(data[i], buffers);\n\t    }\n\t    return newData;\n\t  } else if (typeof data === 'object' && !(data instanceof Date)) {\n\t    var newData = {};\n\t    for (var key in data) {\n\t      newData[key] = _deconstructPacket(data[key], buffers);\n\t    }\n\t    return newData;\n\t  }\n\t  return data;\n\t}\n\t\n\t/**\n\t * Reconstructs a binary packet from its placeholder packet and buffers\n\t *\n\t * @param {Object} packet - event packet with placeholders\n\t * @param {Array} buffers - binary buffers to put in placeholder positions\n\t * @return {Object} reconstructed packet\n\t * @api public\n\t */\n\t\n\texports.reconstructPacket = function(packet, buffers) {\n\t  packet.data = _reconstructPacket(packet.data, buffers);\n\t  packet.attachments = undefined; // no longer useful\n\t  return packet;\n\t};\n\t\n\tfunction _reconstructPacket(data, buffers) {\n\t  if (!data) return data;\n\t\n\t  if (data && data._placeholder) {\n\t    return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n\t  } else if (isArray(data)) {\n\t    for (var i = 0; i < data.length; i++) {\n\t      data[i] = _reconstructPacket(data[i], buffers);\n\t    }\n\t  } else if (typeof data === 'object') {\n\t    for (var key in data) {\n\t      data[key] = _reconstructPacket(data[key], buffers);\n\t    }\n\t  }\n\t\n\t  return data;\n\t}\n\t\n\t/**\n\t * Asynchronously removes Blobs or Files from data via\n\t * FileReader's readAsArrayBuffer method. Used before encoding\n\t * data as msgpack. Calls callback with the blobless data.\n\t *\n\t * @param {Object} data\n\t * @param {Function} callback\n\t * @api private\n\t */\n\t\n\texports.removeBlobs = function(data, callback) {\n\t  function _removeBlobs(obj, curKey, containingObject) {\n\t    if (!obj) return obj;\n\t\n\t    // convert any blob\n\t    if ((withNativeBlob && obj instanceof Blob) ||\n\t        (withNativeFile && obj instanceof File)) {\n\t      pendingBlobs++;\n\t\n\t      // async filereader\n\t      var fileReader = new FileReader();\n\t      fileReader.onload = function() { // this.result == arraybuffer\n\t        if (containingObject) {\n\t          containingObject[curKey] = this.result;\n\t        }\n\t        else {\n\t          bloblessData = this.result;\n\t        }\n\t\n\t        // if nothing pending its callback time\n\t        if(! --pendingBlobs) {\n\t          callback(bloblessData);\n\t        }\n\t      };\n\t\n\t      fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer\n\t    } else if (isArray(obj)) { // handle array\n\t      for (var i = 0; i < obj.length; i++) {\n\t        _removeBlobs(obj[i], i, obj);\n\t      }\n\t    } else if (typeof obj === 'object' && !isBuf(obj)) { // and object\n\t      for (var key in obj) {\n\t        _removeBlobs(obj[key], key, obj);\n\t      }\n\t    }\n\t  }\n\t\n\t  var pendingBlobs = 0;\n\t  var bloblessData = data;\n\t  _removeBlobs(bloblessData);\n\t  if (!pendingBlobs) {\n\t    callback(bloblessData);\n\t  }\n\t};\n\n\n/***/ }),\n/* 7 */\n/***/ (function(module, exports) {\n\n\tvar toString = {}.toString;\n\t\n\tmodule.exports = Array.isArray || function (arr) {\n\t  return toString.call(arr) == '[object Array]';\n\t};\n\n\n/***/ }),\n/* 8 */\n/***/ (function(module, exports) {\n\n\t\n\tmodule.exports = isBuf;\n\t\n\tvar withNativeBuffer = typeof Buffer === 'function' && typeof Buffer.isBuffer === 'function';\n\tvar withNativeArrayBuffer = typeof ArrayBuffer === 'function';\n\t\n\tvar isView = function (obj) {\n\t  return typeof ArrayBuffer.isView === 'function' ? ArrayBuffer.isView(obj) : (obj.buffer instanceof ArrayBuffer);\n\t};\n\t\n\t/**\n\t * Returns true if obj is a buffer or an arraybuffer.\n\t *\n\t * @api private\n\t */\n\t\n\tfunction isBuf(obj) {\n\t  return (withNativeBuffer && Buffer.isBuffer(obj)) ||\n\t          (withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj)));\n\t}\n\n\n/***/ }),\n/* 9 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\t\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar eio = __webpack_require__(10);\n\tvar Socket = __webpack_require__(33);\n\tvar Emitter = __webpack_require__(5);\n\tvar parser = __webpack_require__(4);\n\tvar on = __webpack_require__(35);\n\tvar bind = __webpack_require__(36);\n\tvar debug = __webpack_require__(3)('socket.io-client:manager');\n\tvar indexOf = __webpack_require__(32);\n\tvar Backoff = __webpack_require__(37);\n\t\n\t/**\n\t * IE6+ hasOwnProperty\n\t */\n\t\n\tvar has = Object.prototype.hasOwnProperty;\n\t\n\t/**\n\t * Module exports\n\t */\n\t\n\tmodule.exports = Manager;\n\t\n\t/**\n\t * `Manager` constructor.\n\t *\n\t * @param {String} engine instance or engine uri/opts\n\t * @param {Object} options\n\t * @api public\n\t */\n\t\n\tfunction Manager(uri, opts) {\n\t  if (!(this instanceof Manager)) return new Manager(uri, opts);\n\t  if (uri && 'object' === (typeof uri === 'undefined' ? 'undefined' : _typeof(uri))) {\n\t    opts = uri;\n\t    uri = undefined;\n\t  }\n\t  opts = opts || {};\n\t\n\t  opts.path = opts.path || '/socket.io';\n\t  this.nsps = {};\n\t  this.subs = [];\n\t  this.opts = opts;\n\t  this.reconnection(opts.reconnection !== false);\n\t  this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n\t  this.reconnectionDelay(opts.reconnectionDelay || 1000);\n\t  this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n\t  this.randomizationFactor(opts.randomizationFactor || 0.5);\n\t  this.backoff = new Backoff({\n\t    min: this.reconnectionDelay(),\n\t    max: this.reconnectionDelayMax(),\n\t    jitter: this.randomizationFactor()\n\t  });\n\t  this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n\t  this.readyState = 'closed';\n\t  this.uri = uri;\n\t  this.connecting = [];\n\t  this.lastPing = null;\n\t  this.encoding = false;\n\t  this.packetBuffer = [];\n\t  var _parser = opts.parser || parser;\n\t  this.encoder = new _parser.Encoder();\n\t  this.decoder = new _parser.Decoder();\n\t  this.autoConnect = opts.autoConnect !== false;\n\t  if (this.autoConnect) this.open();\n\t}\n\t\n\t/**\n\t * Propagate given event to sockets and emit on `this`\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.emitAll = function () {\n\t  this.emit.apply(this, arguments);\n\t  for (var nsp in this.nsps) {\n\t    if (has.call(this.nsps, nsp)) {\n\t      this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);\n\t    }\n\t  }\n\t};\n\t\n\t/**\n\t * Update `socket.id` of all sockets\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.updateSocketIds = function () {\n\t  for (var nsp in this.nsps) {\n\t    if (has.call(this.nsps, nsp)) {\n\t      this.nsps[nsp].id = this.generateId(nsp);\n\t    }\n\t  }\n\t};\n\t\n\t/**\n\t * generate `socket.id` for the given `nsp`\n\t *\n\t * @param {String} nsp\n\t * @return {String}\n\t * @api private\n\t */\n\t\n\tManager.prototype.generateId = function (nsp) {\n\t  return (nsp === '/' ? '' : nsp + '#') + this.engine.id;\n\t};\n\t\n\t/**\n\t * Mix in `Emitter`.\n\t */\n\t\n\tEmitter(Manager.prototype);\n\t\n\t/**\n\t * Sets the `reconnection` config.\n\t *\n\t * @param {Boolean} true/false if it should automatically reconnect\n\t * @return {Manager} self or value\n\t * @api public\n\t */\n\t\n\tManager.prototype.reconnection = function (v) {\n\t  if (!arguments.length) return this._reconnection;\n\t  this._reconnection = !!v;\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sets the reconnection attempts config.\n\t *\n\t * @param {Number} max reconnection attempts before giving up\n\t * @return {Manager} self or value\n\t * @api public\n\t */\n\t\n\tManager.prototype.reconnectionAttempts = function (v) {\n\t  if (!arguments.length) return this._reconnectionAttempts;\n\t  this._reconnectionAttempts = v;\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sets the delay between reconnections.\n\t *\n\t * @param {Number} delay\n\t * @return {Manager} self or value\n\t * @api public\n\t */\n\t\n\tManager.prototype.reconnectionDelay = function (v) {\n\t  if (!arguments.length) return this._reconnectionDelay;\n\t  this._reconnectionDelay = v;\n\t  this.backoff && this.backoff.setMin(v);\n\t  return this;\n\t};\n\t\n\tManager.prototype.randomizationFactor = function (v) {\n\t  if (!arguments.length) return this._randomizationFactor;\n\t  this._randomizationFactor = v;\n\t  this.backoff && this.backoff.setJitter(v);\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sets the maximum delay between reconnections.\n\t *\n\t * @param {Number} delay\n\t * @return {Manager} self or value\n\t * @api public\n\t */\n\t\n\tManager.prototype.reconnectionDelayMax = function (v) {\n\t  if (!arguments.length) return this._reconnectionDelayMax;\n\t  this._reconnectionDelayMax = v;\n\t  this.backoff && this.backoff.setMax(v);\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sets the connection timeout. `false` to disable\n\t *\n\t * @return {Manager} self or value\n\t * @api public\n\t */\n\t\n\tManager.prototype.timeout = function (v) {\n\t  if (!arguments.length) return this._timeout;\n\t  this._timeout = v;\n\t  return this;\n\t};\n\t\n\t/**\n\t * Starts trying to reconnect if reconnection is enabled and we have not\n\t * started reconnecting yet\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.maybeReconnectOnOpen = function () {\n\t  // Only try to reconnect if it's the first time we're connecting\n\t  if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {\n\t    // keeps reconnection from firing twice for the same reconnection loop\n\t    this.reconnect();\n\t  }\n\t};\n\t\n\t/**\n\t * Sets the current transport `socket`.\n\t *\n\t * @param {Function} optional, callback\n\t * @return {Manager} self\n\t * @api public\n\t */\n\t\n\tManager.prototype.open = Manager.prototype.connect = function (fn, opts) {\n\t\n\t  if (~this.readyState.indexOf('open')) return this;\n\t\n\t  this.engine = eio(this.uri, this.opts);\n\t  var socket = this.engine;\n\t  var self = this;\n\t  this.readyState = 'opening';\n\t  this.skipReconnect = false;\n\t\n\t  // emit `open`\n\t  var openSub = on(socket, 'open', function () {\n\t    self.onopen();\n\t    fn && fn();\n\t  });\n\t\n\t  // emit `connect_error`\n\t  var errorSub = on(socket, 'error', function (data) {\n\t\n\t    self.cleanup();\n\t    self.readyState = 'closed';\n\t    self.emitAll('connect_error', data);\n\t    if (fn) {\n\t      var err = new Error('Connection error');\n\t      err.data = data;\n\t      fn(err);\n\t    } else {\n\t      // Only do this if there is no fn to handle the error\n\t      self.maybeReconnectOnOpen();\n\t    }\n\t  });\n\t\n\t  // emit `connect_timeout`\n\t  if (false !== this._timeout) {\n\t    var timeout = this._timeout;\n\t\n\t    // set timer\n\t    var timer = setTimeout(function () {\n\t\n\t      openSub.destroy();\n\t      socket.close();\n\t      socket.emit('error', 'timeout');\n\t      self.emitAll('connect_timeout', timeout);\n\t    }, timeout);\n\t\n\t    this.subs.push({\n\t      destroy: function destroy() {\n\t        clearTimeout(timer);\n\t      }\n\t    });\n\t  }\n\t\n\t  this.subs.push(openSub);\n\t  this.subs.push(errorSub);\n\t\n\t  return this;\n\t};\n\t\n\t/**\n\t * Called upon transport open.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.onopen = function () {\n\t\n\t  // clear old subs\n\t  this.cleanup();\n\t\n\t  // mark as open\n\t  this.readyState = 'open';\n\t  this.emit('open');\n\t\n\t  // add new subs\n\t  var socket = this.engine;\n\t  this.subs.push(on(socket, 'data', bind(this, 'ondata')));\n\t  this.subs.push(on(socket, 'ping', bind(this, 'onping')));\n\t  this.subs.push(on(socket, 'pong', bind(this, 'onpong')));\n\t  this.subs.push(on(socket, 'error', bind(this, 'onerror')));\n\t  this.subs.push(on(socket, 'close', bind(this, 'onclose')));\n\t  this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));\n\t};\n\t\n\t/**\n\t * Called upon a ping.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.onping = function () {\n\t  this.lastPing = new Date();\n\t  this.emitAll('ping');\n\t};\n\t\n\t/**\n\t * Called upon a packet.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.onpong = function () {\n\t  this.emitAll('pong', new Date() - this.lastPing);\n\t};\n\t\n\t/**\n\t * Called with data.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.ondata = function (data) {\n\t  this.decoder.add(data);\n\t};\n\t\n\t/**\n\t * Called when parser fully decodes a packet.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.ondecoded = function (packet) {\n\t  this.emit('packet', packet);\n\t};\n\t\n\t/**\n\t * Called upon socket error.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.onerror = function (err) {\n\t\n\t  this.emitAll('error', err);\n\t};\n\t\n\t/**\n\t * Creates a new socket for the given `nsp`.\n\t *\n\t * @return {Socket}\n\t * @api public\n\t */\n\t\n\tManager.prototype.socket = function (nsp, opts) {\n\t  var socket = this.nsps[nsp];\n\t  if (!socket) {\n\t    socket = new Socket(this, nsp, opts);\n\t    this.nsps[nsp] = socket;\n\t    var self = this;\n\t    socket.on('connecting', onConnecting);\n\t    socket.on('connect', function () {\n\t      socket.id = self.generateId(nsp);\n\t    });\n\t\n\t    if (this.autoConnect) {\n\t      // manually call here since connecting event is fired before listening\n\t      onConnecting();\n\t    }\n\t  }\n\t\n\t  function onConnecting() {\n\t    if (!~indexOf(self.connecting, socket)) {\n\t      self.connecting.push(socket);\n\t    }\n\t  }\n\t\n\t  return socket;\n\t};\n\t\n\t/**\n\t * Called upon a socket close.\n\t *\n\t * @param {Socket} socket\n\t */\n\t\n\tManager.prototype.destroy = function (socket) {\n\t  var index = indexOf(this.connecting, socket);\n\t  if (~index) this.connecting.splice(index, 1);\n\t  if (this.connecting.length) return;\n\t\n\t  this.close();\n\t};\n\t\n\t/**\n\t * Writes a packet.\n\t *\n\t * @param {Object} packet\n\t * @api private\n\t */\n\t\n\tManager.prototype.packet = function (packet) {\n\t\n\t  var self = this;\n\t  if (packet.query && packet.type === 0) packet.nsp += '?' + packet.query;\n\t\n\t  if (!self.encoding) {\n\t    // encode, then write to engine with result\n\t    self.encoding = true;\n\t    this.encoder.encode(packet, function (encodedPackets) {\n\t      for (var i = 0; i < encodedPackets.length; i++) {\n\t        self.engine.write(encodedPackets[i], packet.options);\n\t      }\n\t      self.encoding = false;\n\t      self.processPacketQueue();\n\t    });\n\t  } else {\n\t    // add packet to the queue\n\t    self.packetBuffer.push(packet);\n\t  }\n\t};\n\t\n\t/**\n\t * If packet buffer is non-empty, begins encoding the\n\t * next packet in line.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.processPacketQueue = function () {\n\t  if (this.packetBuffer.length > 0 && !this.encoding) {\n\t    var pack = this.packetBuffer.shift();\n\t    this.packet(pack);\n\t  }\n\t};\n\t\n\t/**\n\t * Clean up transport subscriptions and packet buffer.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.cleanup = function () {\n\t\n\t  var subsLength = this.subs.length;\n\t  for (var i = 0; i < subsLength; i++) {\n\t    var sub = this.subs.shift();\n\t    sub.destroy();\n\t  }\n\t\n\t  this.packetBuffer = [];\n\t  this.encoding = false;\n\t  this.lastPing = null;\n\t\n\t  this.decoder.destroy();\n\t};\n\t\n\t/**\n\t * Close the current socket.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.close = Manager.prototype.disconnect = function () {\n\t\n\t  this.skipReconnect = true;\n\t  this.reconnecting = false;\n\t  if ('opening' === this.readyState) {\n\t    // `onclose` will not fire because\n\t    // an open event never happened\n\t    this.cleanup();\n\t  }\n\t  this.backoff.reset();\n\t  this.readyState = 'closed';\n\t  if (this.engine) this.engine.close();\n\t};\n\t\n\t/**\n\t * Called upon engine close.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.onclose = function (reason) {\n\t\n\t  this.cleanup();\n\t  this.backoff.reset();\n\t  this.readyState = 'closed';\n\t  this.emit('close', reason);\n\t\n\t  if (this._reconnection && !this.skipReconnect) {\n\t    this.reconnect();\n\t  }\n\t};\n\t\n\t/**\n\t * Attempt a reconnection.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.reconnect = function () {\n\t  if (this.reconnecting || this.skipReconnect) return this;\n\t\n\t  var self = this;\n\t\n\t  if (this.backoff.attempts >= this._reconnectionAttempts) {\n\t\n\t    this.backoff.reset();\n\t    this.emitAll('reconnect_failed');\n\t    this.reconnecting = false;\n\t  } else {\n\t    var delay = this.backoff.duration();\n\t\n\t    this.reconnecting = true;\n\t    var timer = setTimeout(function () {\n\t      if (self.skipReconnect) return;\n\t\n\t      self.emitAll('reconnect_attempt', self.backoff.attempts);\n\t      self.emitAll('reconnecting', self.backoff.attempts);\n\t\n\t      // check again for the case socket closed in above events\n\t      if (self.skipReconnect) return;\n\t\n\t      self.open(function (err) {\n\t        if (err) {\n\t\n\t          self.reconnecting = false;\n\t          self.reconnect();\n\t          self.emitAll('reconnect_error', err.data);\n\t        } else {\n\t\n\t          self.onreconnect();\n\t        }\n\t      });\n\t    }, delay);\n\t\n\t    this.subs.push({\n\t      destroy: function destroy() {\n\t        clearTimeout(timer);\n\t      }\n\t    });\n\t  }\n\t};\n\t\n\t/**\n\t * Called upon successful reconnect.\n\t *\n\t * @api private\n\t */\n\t\n\tManager.prototype.onreconnect = function () {\n\t  var attempt = this.backoff.attempts;\n\t  this.reconnecting = false;\n\t  this.backoff.reset();\n\t  this.updateSocketIds();\n\t  this.emitAll('reconnect', attempt);\n\t};\n\n/***/ }),\n/* 10 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t\n\tmodule.exports = __webpack_require__(11);\n\t\n\t/**\n\t * Exports parser\n\t *\n\t * @api public\n\t *\n\t */\n\tmodule.exports.parser = __webpack_require__(18);\n\n\n/***/ }),\n/* 11 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar transports = __webpack_require__(12);\n\tvar Emitter = __webpack_require__(5);\n\tvar debug = __webpack_require__(3)('engine.io-client:socket');\n\tvar index = __webpack_require__(32);\n\tvar parser = __webpack_require__(18);\n\tvar parseuri = __webpack_require__(2);\n\tvar parseqs = __webpack_require__(26);\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = Socket;\n\t\n\t/**\n\t * Socket constructor.\n\t *\n\t * @param {String|Object} uri or options\n\t * @param {Object} options\n\t * @api public\n\t */\n\t\n\tfunction Socket (uri, opts) {\n\t  if (!(this instanceof Socket)) return new Socket(uri, opts);\n\t\n\t  opts = opts || {};\n\t\n\t  if (uri && 'object' === typeof uri) {\n\t    opts = uri;\n\t    uri = null;\n\t  }\n\t\n\t  if (uri) {\n\t    uri = parseuri(uri);\n\t    opts.hostname = uri.host;\n\t    opts.secure = uri.protocol === 'https' || uri.protocol === 'wss';\n\t    opts.port = uri.port;\n\t    if (uri.query) opts.query = uri.query;\n\t  } else if (opts.host) {\n\t    opts.hostname = parseuri(opts.host).host;\n\t  }\n\t\n\t  this.secure = null != opts.secure ? opts.secure\n\t    : (typeof location !== 'undefined' && 'https:' === location.protocol);\n\t\n\t  if (opts.hostname && !opts.port) {\n\t    // if no port is specified manually, use the protocol default\n\t    opts.port = this.secure ? '443' : '80';\n\t  }\n\t\n\t  this.agent = opts.agent || false;\n\t  this.hostname = opts.hostname ||\n\t    (typeof location !== 'undefined' ? location.hostname : 'localhost');\n\t  this.port = opts.port || (typeof location !== 'undefined' && location.port\n\t      ? location.port\n\t      : (this.secure ? 443 : 80));\n\t  this.query = opts.query || {};\n\t  if ('string' === typeof this.query) this.query = parseqs.decode(this.query);\n\t  this.upgrade = false !== opts.upgrade;\n\t  this.path = (opts.path || '/engine.io').replace(/\\/$/, '') + '/';\n\t  this.forceJSONP = !!opts.forceJSONP;\n\t  this.jsonp = false !== opts.jsonp;\n\t  this.forceBase64 = !!opts.forceBase64;\n\t  this.enablesXDR = !!opts.enablesXDR;\n\t  this.timestampParam = opts.timestampParam || 't';\n\t  this.timestampRequests = opts.timestampRequests;\n\t  this.transports = opts.transports || ['polling', 'websocket'];\n\t  this.transportOptions = opts.transportOptions || {};\n\t  this.readyState = '';\n\t  this.writeBuffer = [];\n\t  this.prevBufferLen = 0;\n\t  this.policyPort = opts.policyPort || 843;\n\t  this.rememberUpgrade = opts.rememberUpgrade || false;\n\t  this.binaryType = null;\n\t  this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;\n\t  this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || {}) : false;\n\t\n\t  if (true === this.perMessageDeflate) this.perMessageDeflate = {};\n\t  if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) {\n\t    this.perMessageDeflate.threshold = 1024;\n\t  }\n\t\n\t  // SSL options for Node.js client\n\t  this.pfx = opts.pfx || null;\n\t  this.key = opts.key || null;\n\t  this.passphrase = opts.passphrase || null;\n\t  this.cert = opts.cert || null;\n\t  this.ca = opts.ca || null;\n\t  this.ciphers = opts.ciphers || null;\n\t  this.rejectUnauthorized = opts.rejectUnauthorized === undefined ? true : opts.rejectUnauthorized;\n\t  this.forceNode = !!opts.forceNode;\n\t\n\t  // detect ReactNative environment\n\t  this.isReactNative = (typeof navigator !== 'undefined' && typeof navigator.product === 'string' && navigator.product.toLowerCase() === 'reactnative');\n\t\n\t  // other options for Node.js or ReactNative client\n\t  if (typeof self === 'undefined' || this.isReactNative) {\n\t    if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) {\n\t      this.extraHeaders = opts.extraHeaders;\n\t    }\n\t\n\t    if (opts.localAddress) {\n\t      this.localAddress = opts.localAddress;\n\t    }\n\t  }\n\t\n\t  // set on handshake\n\t  this.id = null;\n\t  this.upgrades = null;\n\t  this.pingInterval = null;\n\t  this.pingTimeout = null;\n\t\n\t  // set on heartbeat\n\t  this.pingIntervalTimer = null;\n\t  this.pingTimeoutTimer = null;\n\t\n\t  this.open();\n\t}\n\t\n\tSocket.priorWebsocketSuccess = false;\n\t\n\t/**\n\t * Mix in `Emitter`.\n\t */\n\t\n\tEmitter(Socket.prototype);\n\t\n\t/**\n\t * Protocol version.\n\t *\n\t * @api public\n\t */\n\t\n\tSocket.protocol = parser.protocol; // this is an int\n\t\n\t/**\n\t * Expose deps for legacy compatibility\n\t * and standalone browser access.\n\t */\n\t\n\tSocket.Socket = Socket;\n\tSocket.Transport = __webpack_require__(17);\n\tSocket.transports = __webpack_require__(12);\n\tSocket.parser = __webpack_require__(18);\n\t\n\t/**\n\t * Creates transport of the given type.\n\t *\n\t * @param {String} transport name\n\t * @return {Transport}\n\t * @api private\n\t */\n\t\n\tSocket.prototype.createTransport = function (name) {\n\t\n\t  var query = clone(this.query);\n\t\n\t  // append engine.io protocol identifier\n\t  query.EIO = parser.protocol;\n\t\n\t  // transport name\n\t  query.transport = name;\n\t\n\t  // per-transport options\n\t  var options = this.transportOptions[name] || {};\n\t\n\t  // session id if we already have one\n\t  if (this.id) query.sid = this.id;\n\t\n\t  var transport = new transports[name]({\n\t    query: query,\n\t    socket: this,\n\t    agent: options.agent || this.agent,\n\t    hostname: options.hostname || this.hostname,\n\t    port: options.port || this.port,\n\t    secure: options.secure || this.secure,\n\t    path: options.path || this.path,\n\t    forceJSONP: options.forceJSONP || this.forceJSONP,\n\t    jsonp: options.jsonp || this.jsonp,\n\t    forceBase64: options.forceBase64 || this.forceBase64,\n\t    enablesXDR: options.enablesXDR || this.enablesXDR,\n\t    timestampRequests: options.timestampRequests || this.timestampRequests,\n\t    timestampParam: options.timestampParam || this.timestampParam,\n\t    policyPort: options.policyPort || this.policyPort,\n\t    pfx: options.pfx || this.pfx,\n\t    key: options.key || this.key,\n\t    passphrase: options.passphrase || this.passphrase,\n\t    cert: options.cert || this.cert,\n\t    ca: options.ca || this.ca,\n\t    ciphers: options.ciphers || this.ciphers,\n\t    rejectUnauthorized: options.rejectUnauthorized || this.rejectUnauthorized,\n\t    perMessageDeflate: options.perMessageDeflate || this.perMessageDeflate,\n\t    extraHeaders: options.extraHeaders || this.extraHeaders,\n\t    forceNode: options.forceNode || this.forceNode,\n\t    localAddress: options.localAddress || this.localAddress,\n\t    requestTimeout: options.requestTimeout || this.requestTimeout,\n\t    protocols: options.protocols || void (0),\n\t    isReactNative: this.isReactNative\n\t  });\n\t\n\t  return transport;\n\t};\n\t\n\tfunction clone (obj) {\n\t  var o = {};\n\t  for (var i in obj) {\n\t    if (obj.hasOwnProperty(i)) {\n\t      o[i] = obj[i];\n\t    }\n\t  }\n\t  return o;\n\t}\n\t\n\t/**\n\t * Initializes transport to use and starts probe.\n\t *\n\t * @api private\n\t */\n\tSocket.prototype.open = function () {\n\t  var transport;\n\t  if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') !== -1) {\n\t    transport = 'websocket';\n\t  } else if (0 === this.transports.length) {\n\t    // Emit error on next tick so it can be listened to\n\t    var self = this;\n\t    setTimeout(function () {\n\t      self.emit('error', 'No transports available');\n\t    }, 0);\n\t    return;\n\t  } else {\n\t    transport = this.transports[0];\n\t  }\n\t  this.readyState = 'opening';\n\t\n\t  // Retry with the next transport if the transport is disabled (jsonp: false)\n\t  try {\n\t    transport = this.createTransport(transport);\n\t  } catch (e) {\n\t    this.transports.shift();\n\t    this.open();\n\t    return;\n\t  }\n\t\n\t  transport.open();\n\t  this.setTransport(transport);\n\t};\n\t\n\t/**\n\t * Sets the current transport. Disables the existing one (if any).\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.setTransport = function (transport) {\n\t\n\t  var self = this;\n\t\n\t  if (this.transport) {\n\t\n\t    this.transport.removeAllListeners();\n\t  }\n\t\n\t  // set up transport\n\t  this.transport = transport;\n\t\n\t  // set up transport listeners\n\t  transport\n\t  .on('drain', function () {\n\t    self.onDrain();\n\t  })\n\t  .on('packet', function (packet) {\n\t    self.onPacket(packet);\n\t  })\n\t  .on('error', function (e) {\n\t    self.onError(e);\n\t  })\n\t  .on('close', function () {\n\t    self.onClose('transport close');\n\t  });\n\t};\n\t\n\t/**\n\t * Probes a transport.\n\t *\n\t * @param {String} transport name\n\t * @api private\n\t */\n\t\n\tSocket.prototype.probe = function (name) {\n\t\n\t  var transport = this.createTransport(name, { probe: 1 });\n\t  var failed = false;\n\t  var self = this;\n\t\n\t  Socket.priorWebsocketSuccess = false;\n\t\n\t  function onTransportOpen () {\n\t    if (self.onlyBinaryUpgrades) {\n\t      var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;\n\t      failed = failed || upgradeLosesBinary;\n\t    }\n\t    if (failed) return;\n\t\n\t\n\t    transport.send([{ type: 'ping', data: 'probe' }]);\n\t    transport.once('packet', function (msg) {\n\t      if (failed) return;\n\t      if ('pong' === msg.type && 'probe' === msg.data) {\n\t\n\t        self.upgrading = true;\n\t        self.emit('upgrading', transport);\n\t        if (!transport) return;\n\t        Socket.priorWebsocketSuccess = 'websocket' === transport.name;\n\t\n\t\n\t        self.transport.pause(function () {\n\t          if (failed) return;\n\t          if ('closed' === self.readyState) return;\n\t\n\t\n\t          cleanup();\n\t\n\t          self.setTransport(transport);\n\t          transport.send([{ type: 'upgrade' }]);\n\t          self.emit('upgrade', transport);\n\t          transport = null;\n\t          self.upgrading = false;\n\t          self.flush();\n\t        });\n\t      } else {\n\t\n\t        var err = new Error('probe error');\n\t        err.transport = transport.name;\n\t        self.emit('upgradeError', err);\n\t      }\n\t    });\n\t  }\n\t\n\t  function freezeTransport () {\n\t    if (failed) return;\n\t\n\t    // Any callback called by transport should be ignored since now\n\t    failed = true;\n\t\n\t    cleanup();\n\t\n\t    transport.close();\n\t    transport = null;\n\t  }\n\t\n\t  // Handle any error that happens while probing\n\t  function onerror (err) {\n\t    var error = new Error('probe error: ' + err);\n\t    error.transport = transport.name;\n\t\n\t    freezeTransport();\n\t\n\t\n\t\n\t    self.emit('upgradeError', error);\n\t  }\n\t\n\t  function onTransportClose () {\n\t    onerror('transport closed');\n\t  }\n\t\n\t  // When the socket is closed while we're probing\n\t  function onclose () {\n\t    onerror('socket closed');\n\t  }\n\t\n\t  // When the socket is upgraded while we're probing\n\t  function onupgrade (to) {\n\t    if (transport && to.name !== transport.name) {\n\t\n\t      freezeTransport();\n\t    }\n\t  }\n\t\n\t  // Remove all listeners on the transport and on self\n\t  function cleanup () {\n\t    transport.removeListener('open', onTransportOpen);\n\t    transport.removeListener('error', onerror);\n\t    transport.removeListener('close', onTransportClose);\n\t    self.removeListener('close', onclose);\n\t    self.removeListener('upgrading', onupgrade);\n\t  }\n\t\n\t  transport.once('open', onTransportOpen);\n\t  transport.once('error', onerror);\n\t  transport.once('close', onTransportClose);\n\t\n\t  this.once('close', onclose);\n\t  this.once('upgrading', onupgrade);\n\t\n\t  transport.open();\n\t};\n\t\n\t/**\n\t * Called when connection is deemed open.\n\t *\n\t * @api public\n\t */\n\t\n\tSocket.prototype.onOpen = function () {\n\t\n\t  this.readyState = 'open';\n\t  Socket.priorWebsocketSuccess = 'websocket' === this.transport.name;\n\t  this.emit('open');\n\t  this.flush();\n\t\n\t  // we check for `readyState` in case an `open`\n\t  // listener already closed the socket\n\t  if ('open' === this.readyState && this.upgrade && this.transport.pause) {\n\t\n\t    for (var i = 0, l = this.upgrades.length; i < l; i++) {\n\t      this.probe(this.upgrades[i]);\n\t    }\n\t  }\n\t};\n\t\n\t/**\n\t * Handles a packet.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onPacket = function (packet) {\n\t  if ('opening' === this.readyState || 'open' === this.readyState ||\n\t      'closing' === this.readyState) {\n\t\n\t\n\t    this.emit('packet', packet);\n\t\n\t    // Socket is live - any packet counts\n\t    this.emit('heartbeat');\n\t\n\t    switch (packet.type) {\n\t      case 'open':\n\t        this.onHandshake(JSON.parse(packet.data));\n\t        break;\n\t\n\t      case 'pong':\n\t        this.setPing();\n\t        this.emit('pong');\n\t        break;\n\t\n\t      case 'error':\n\t        var err = new Error('server error');\n\t        err.code = packet.data;\n\t        this.onError(err);\n\t        break;\n\t\n\t      case 'message':\n\t        this.emit('data', packet.data);\n\t        this.emit('message', packet.data);\n\t        break;\n\t    }\n\t  } else {\n\t\n\t  }\n\t};\n\t\n\t/**\n\t * Called upon handshake completion.\n\t *\n\t * @param {Object} handshake obj\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onHandshake = function (data) {\n\t  this.emit('handshake', data);\n\t  this.id = data.sid;\n\t  this.transport.query.sid = data.sid;\n\t  this.upgrades = this.filterUpgrades(data.upgrades);\n\t  this.pingInterval = data.pingInterval;\n\t  this.pingTimeout = data.pingTimeout;\n\t  this.onOpen();\n\t  // In case open handler closes socket\n\t  if ('closed' === this.readyState) return;\n\t  this.setPing();\n\t\n\t  // Prolong liveness of socket on heartbeat\n\t  this.removeListener('heartbeat', this.onHeartbeat);\n\t  this.on('heartbeat', this.onHeartbeat);\n\t};\n\t\n\t/**\n\t * Resets ping timeout.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onHeartbeat = function (timeout) {\n\t  clearTimeout(this.pingTimeoutTimer);\n\t  var self = this;\n\t  self.pingTimeoutTimer = setTimeout(function () {\n\t    if ('closed' === self.readyState) return;\n\t    self.onClose('ping timeout');\n\t  }, timeout || (self.pingInterval + self.pingTimeout));\n\t};\n\t\n\t/**\n\t * Pings server every `this.pingInterval` and expects response\n\t * within `this.pingTimeout` or closes connection.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.setPing = function () {\n\t  var self = this;\n\t  clearTimeout(self.pingIntervalTimer);\n\t  self.pingIntervalTimer = setTimeout(function () {\n\t\n\t    self.ping();\n\t    self.onHeartbeat(self.pingTimeout);\n\t  }, self.pingInterval);\n\t};\n\t\n\t/**\n\t* Sends a ping packet.\n\t*\n\t* @api private\n\t*/\n\t\n\tSocket.prototype.ping = function () {\n\t  var self = this;\n\t  this.sendPacket('ping', function () {\n\t    self.emit('ping');\n\t  });\n\t};\n\t\n\t/**\n\t * Called on `drain` event\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onDrain = function () {\n\t  this.writeBuffer.splice(0, this.prevBufferLen);\n\t\n\t  // setting prevBufferLen = 0 is very important\n\t  // for example, when upgrading, upgrade packet is sent over,\n\t  // and a nonzero prevBufferLen could cause problems on `drain`\n\t  this.prevBufferLen = 0;\n\t\n\t  if (0 === this.writeBuffer.length) {\n\t    this.emit('drain');\n\t  } else {\n\t    this.flush();\n\t  }\n\t};\n\t\n\t/**\n\t * Flush write buffers.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.flush = function () {\n\t  if ('closed' !== this.readyState && this.transport.writable &&\n\t    !this.upgrading && this.writeBuffer.length) {\n\t\n\t    this.transport.send(this.writeBuffer);\n\t    // keep track of current length of writeBuffer\n\t    // splice writeBuffer and callbackBuffer on `drain`\n\t    this.prevBufferLen = this.writeBuffer.length;\n\t    this.emit('flush');\n\t  }\n\t};\n\t\n\t/**\n\t * Sends a message.\n\t *\n\t * @param {String} message.\n\t * @param {Function} callback function.\n\t * @param {Object} options.\n\t * @return {Socket} for chaining.\n\t * @api public\n\t */\n\t\n\tSocket.prototype.write =\n\tSocket.prototype.send = function (msg, options, fn) {\n\t  this.sendPacket('message', msg, options, fn);\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sends a packet.\n\t *\n\t * @param {String} packet type.\n\t * @param {String} data.\n\t * @param {Object} options.\n\t * @param {Function} callback function.\n\t * @api private\n\t */\n\t\n\tSocket.prototype.sendPacket = function (type, data, options, fn) {\n\t  if ('function' === typeof data) {\n\t    fn = data;\n\t    data = undefined;\n\t  }\n\t\n\t  if ('function' === typeof options) {\n\t    fn = options;\n\t    options = null;\n\t  }\n\t\n\t  if ('closing' === this.readyState || 'closed' === this.readyState) {\n\t    return;\n\t  }\n\t\n\t  options = options || {};\n\t  options.compress = false !== options.compress;\n\t\n\t  var packet = {\n\t    type: type,\n\t    data: data,\n\t    options: options\n\t  };\n\t  this.emit('packetCreate', packet);\n\t  this.writeBuffer.push(packet);\n\t  if (fn) this.once('flush', fn);\n\t  this.flush();\n\t};\n\t\n\t/**\n\t * Closes the connection.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.close = function () {\n\t  if ('opening' === this.readyState || 'open' === this.readyState) {\n\t    this.readyState = 'closing';\n\t\n\t    var self = this;\n\t\n\t    if (this.writeBuffer.length) {\n\t      this.once('drain', function () {\n\t        if (this.upgrading) {\n\t          waitForUpgrade();\n\t        } else {\n\t          close();\n\t        }\n\t      });\n\t    } else if (this.upgrading) {\n\t      waitForUpgrade();\n\t    } else {\n\t      close();\n\t    }\n\t  }\n\t\n\t  function close () {\n\t    self.onClose('forced close');\n\t\n\t    self.transport.close();\n\t  }\n\t\n\t  function cleanupAndClose () {\n\t    self.removeListener('upgrade', cleanupAndClose);\n\t    self.removeListener('upgradeError', cleanupAndClose);\n\t    close();\n\t  }\n\t\n\t  function waitForUpgrade () {\n\t    // wait for upgrade to finish since we can't send packets while pausing a transport\n\t    self.once('upgrade', cleanupAndClose);\n\t    self.once('upgradeError', cleanupAndClose);\n\t  }\n\t\n\t  return this;\n\t};\n\t\n\t/**\n\t * Called upon transport error\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onError = function (err) {\n\t\n\t  Socket.priorWebsocketSuccess = false;\n\t  this.emit('error', err);\n\t  this.onClose('transport error', err);\n\t};\n\t\n\t/**\n\t * Called upon transport close.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onClose = function (reason, desc) {\n\t  if ('opening' === this.readyState || 'open' === this.readyState || 'closing' === this.readyState) {\n\t\n\t    var self = this;\n\t\n\t    // clear timers\n\t    clearTimeout(this.pingIntervalTimer);\n\t    clearTimeout(this.pingTimeoutTimer);\n\t\n\t    // stop event from firing again for transport\n\t    this.transport.removeAllListeners('close');\n\t\n\t    // ensure transport won't stay open\n\t    this.transport.close();\n\t\n\t    // ignore further transport communication\n\t    this.transport.removeAllListeners();\n\t\n\t    // set ready state\n\t    this.readyState = 'closed';\n\t\n\t    // clear session id\n\t    this.id = null;\n\t\n\t    // emit close event\n\t    this.emit('close', reason, desc);\n\t\n\t    // clean buffers after, so users can still\n\t    // grab the buffers on `close` event\n\t    self.writeBuffer = [];\n\t    self.prevBufferLen = 0;\n\t  }\n\t};\n\t\n\t/**\n\t * Filters upgrades, returning only those matching client transports.\n\t *\n\t * @param {Array} server upgrades\n\t * @api private\n\t *\n\t */\n\t\n\tSocket.prototype.filterUpgrades = function (upgrades) {\n\t  var filteredUpgrades = [];\n\t  for (var i = 0, j = upgrades.length; i < j; i++) {\n\t    if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);\n\t  }\n\t  return filteredUpgrades;\n\t};\n\n\n/***/ }),\n/* 12 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/**\n\t * Module dependencies\n\t */\n\t\n\tvar XMLHttpRequest = __webpack_require__(13);\n\tvar XHR = __webpack_require__(15);\n\tvar JSONP = __webpack_require__(29);\n\tvar websocket = __webpack_require__(30);\n\t\n\t/**\n\t * Export transports.\n\t */\n\t\n\texports.polling = polling;\n\texports.websocket = websocket;\n\t\n\t/**\n\t * Polling transport polymorphic constructor.\n\t * Decides on xhr vs jsonp based on feature detection.\n\t *\n\t * @api private\n\t */\n\t\n\tfunction polling (opts) {\n\t  var xhr;\n\t  var xd = false;\n\t  var xs = false;\n\t  var jsonp = false !== opts.jsonp;\n\t\n\t  if (typeof location !== 'undefined') {\n\t    var isSSL = 'https:' === location.protocol;\n\t    var port = location.port;\n\t\n\t    // some user agents have empty `location.port`\n\t    if (!port) {\n\t      port = isSSL ? 443 : 80;\n\t    }\n\t\n\t    xd = opts.hostname !== location.hostname || port !== opts.port;\n\t    xs = opts.secure !== isSSL;\n\t  }\n\t\n\t  opts.xdomain = xd;\n\t  opts.xscheme = xs;\n\t  xhr = new XMLHttpRequest(opts);\n\t\n\t  if ('open' in xhr && !opts.forceJSONP) {\n\t    return new XHR(opts);\n\t  } else {\n\t    if (!jsonp) throw new Error('JSONP disabled');\n\t    return new JSONP(opts);\n\t  }\n\t}\n\n\n/***/ }),\n/* 13 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t// browser shim for xmlhttprequest module\n\t\n\tvar hasCORS = __webpack_require__(14);\n\t\n\tmodule.exports = function (opts) {\n\t  var xdomain = opts.xdomain;\n\t\n\t  // scheme must be same when usign XDomainRequest\n\t  // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx\n\t  var xscheme = opts.xscheme;\n\t\n\t  // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.\n\t  // https://github.com/Automattic/engine.io-client/pull/217\n\t  var enablesXDR = opts.enablesXDR;\n\t\n\t  // XMLHttpRequest can be disabled on IE\n\t  try {\n\t    if ('undefined' !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n\t      return new XMLHttpRequest();\n\t    }\n\t  } catch (e) { }\n\t\n\t  // Use XDomainRequest for IE8 if enablesXDR is true\n\t  // because loading bar keeps flashing when using jsonp-polling\n\t  // https://github.com/yujiosaka/socke.io-ie8-loading-example\n\t  try {\n\t    if ('undefined' !== typeof XDomainRequest && !xscheme && enablesXDR) {\n\t      return new XDomainRequest();\n\t    }\n\t  } catch (e) { }\n\t\n\t  if (!xdomain) {\n\t    try {\n\t      return new self[['Active'].concat('Object').join('X')]('Microsoft.XMLHTTP');\n\t    } catch (e) { }\n\t  }\n\t};\n\n\n/***/ }),\n/* 14 */\n/***/ (function(module, exports) {\n\n\t\n\t/**\n\t * Module exports.\n\t *\n\t * Logic borrowed from Modernizr:\n\t *\n\t *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js\n\t */\n\t\n\ttry {\n\t  module.exports = typeof XMLHttpRequest !== 'undefined' &&\n\t    'withCredentials' in new XMLHttpRequest();\n\t} catch (err) {\n\t  // if XMLHttp support is disabled in IE then it will throw\n\t  // when trying to create\n\t  module.exports = false;\n\t}\n\n\n/***/ }),\n/* 15 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/* global attachEvent */\n\t\n\t/**\n\t * Module requirements.\n\t */\n\t\n\tvar XMLHttpRequest = __webpack_require__(13);\n\tvar Polling = __webpack_require__(16);\n\tvar Emitter = __webpack_require__(5);\n\tvar inherit = __webpack_require__(27);\n\tvar debug = __webpack_require__(3)('engine.io-client:polling-xhr');\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = XHR;\n\tmodule.exports.Request = Request;\n\t\n\t/**\n\t * Empty function\n\t */\n\t\n\tfunction empty () {}\n\t\n\t/**\n\t * XHR Polling constructor.\n\t *\n\t * @param {Object} opts\n\t * @api public\n\t */\n\t\n\tfunction XHR (opts) {\n\t  Polling.call(this, opts);\n\t  this.requestTimeout = opts.requestTimeout;\n\t  this.extraHeaders = opts.extraHeaders;\n\t\n\t  if (typeof location !== 'undefined') {\n\t    var isSSL = 'https:' === location.protocol;\n\t    var port = location.port;\n\t\n\t    // some user agents have empty `location.port`\n\t    if (!port) {\n\t      port = isSSL ? 443 : 80;\n\t    }\n\t\n\t    this.xd = (typeof location !== 'undefined' && opts.hostname !== location.hostname) ||\n\t      port !== opts.port;\n\t    this.xs = opts.secure !== isSSL;\n\t  }\n\t}\n\t\n\t/**\n\t * Inherits from Polling.\n\t */\n\t\n\tinherit(XHR, Polling);\n\t\n\t/**\n\t * XHR supports binary\n\t */\n\t\n\tXHR.prototype.supportsBinary = true;\n\t\n\t/**\n\t * Creates a request.\n\t *\n\t * @param {String} method\n\t * @api private\n\t */\n\t\n\tXHR.prototype.request = function (opts) {\n\t  opts = opts || {};\n\t  opts.uri = this.uri();\n\t  opts.xd = this.xd;\n\t  opts.xs = this.xs;\n\t  opts.agent = this.agent || false;\n\t  opts.supportsBinary = this.supportsBinary;\n\t  opts.enablesXDR = this.enablesXDR;\n\t\n\t  // SSL options for Node.js client\n\t  opts.pfx = this.pfx;\n\t  opts.key = this.key;\n\t  opts.passphrase = this.passphrase;\n\t  opts.cert = this.cert;\n\t  opts.ca = this.ca;\n\t  opts.ciphers = this.ciphers;\n\t  opts.rejectUnauthorized = this.rejectUnauthorized;\n\t  opts.requestTimeout = this.requestTimeout;\n\t\n\t  // other options for Node.js client\n\t  opts.extraHeaders = this.extraHeaders;\n\t\n\t  return new Request(opts);\n\t};\n\t\n\t/**\n\t * Sends data.\n\t *\n\t * @param {String} data to send.\n\t * @param {Function} called upon flush.\n\t * @api private\n\t */\n\t\n\tXHR.prototype.doWrite = function (data, fn) {\n\t  var isBinary = typeof data !== 'string' && data !== undefined;\n\t  var req = this.request({ method: 'POST', data: data, isBinary: isBinary });\n\t  var self = this;\n\t  req.on('success', fn);\n\t  req.on('error', function (err) {\n\t    self.onError('xhr post error', err);\n\t  });\n\t  this.sendXhr = req;\n\t};\n\t\n\t/**\n\t * Starts a poll cycle.\n\t *\n\t * @api private\n\t */\n\t\n\tXHR.prototype.doPoll = function () {\n\t\n\t  var req = this.request();\n\t  var self = this;\n\t  req.on('data', function (data) {\n\t    self.onData(data);\n\t  });\n\t  req.on('error', function (err) {\n\t    self.onError('xhr poll error', err);\n\t  });\n\t  this.pollXhr = req;\n\t};\n\t\n\t/**\n\t * Request constructor\n\t *\n\t * @param {Object} options\n\t * @api public\n\t */\n\t\n\tfunction Request (opts) {\n\t  this.method = opts.method || 'GET';\n\t  this.uri = opts.uri;\n\t  this.xd = !!opts.xd;\n\t  this.xs = !!opts.xs;\n\t  this.async = false !== opts.async;\n\t  this.data = undefined !== opts.data ? opts.data : null;\n\t  this.agent = opts.agent;\n\t  this.isBinary = opts.isBinary;\n\t  this.supportsBinary = opts.supportsBinary;\n\t  this.enablesXDR = opts.enablesXDR;\n\t  this.requestTimeout = opts.requestTimeout;\n\t\n\t  // SSL options for Node.js client\n\t  this.pfx = opts.pfx;\n\t  this.key = opts.key;\n\t  this.passphrase = opts.passphrase;\n\t  this.cert = opts.cert;\n\t  this.ca = opts.ca;\n\t  this.ciphers = opts.ciphers;\n\t  this.rejectUnauthorized = opts.rejectUnauthorized;\n\t\n\t  // other options for Node.js client\n\t  this.extraHeaders = opts.extraHeaders;\n\t\n\t  this.create();\n\t}\n\t\n\t/**\n\t * Mix in `Emitter`.\n\t */\n\t\n\tEmitter(Request.prototype);\n\t\n\t/**\n\t * Creates the XHR object and sends the request.\n\t *\n\t * @api private\n\t */\n\t\n\tRequest.prototype.create = function () {\n\t  var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };\n\t\n\t  // SSL options for Node.js client\n\t  opts.pfx = this.pfx;\n\t  opts.key = this.key;\n\t  opts.passphrase = this.passphrase;\n\t  opts.cert = this.cert;\n\t  opts.ca = this.ca;\n\t  opts.ciphers = this.ciphers;\n\t  opts.rejectUnauthorized = this.rejectUnauthorized;\n\t\n\t  var xhr = this.xhr = new XMLHttpRequest(opts);\n\t  var self = this;\n\t\n\t  try {\n\t\n\t    xhr.open(this.method, this.uri, this.async);\n\t    try {\n\t      if (this.extraHeaders) {\n\t        xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n\t        for (var i in this.extraHeaders) {\n\t          if (this.extraHeaders.hasOwnProperty(i)) {\n\t            xhr.setRequestHeader(i, this.extraHeaders[i]);\n\t          }\n\t        }\n\t      }\n\t    } catch (e) {}\n\t\n\t    if ('POST' === this.method) {\n\t      try {\n\t        if (this.isBinary) {\n\t          xhr.setRequestHeader('Content-type', 'application/octet-stream');\n\t        } else {\n\t          xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');\n\t        }\n\t      } catch (e) {}\n\t    }\n\t\n\t    try {\n\t      xhr.setRequestHeader('Accept', '*/*');\n\t    } catch (e) {}\n\t\n\t    // ie6 check\n\t    if ('withCredentials' in xhr) {\n\t      xhr.withCredentials = true;\n\t    }\n\t\n\t    if (this.requestTimeout) {\n\t      xhr.timeout = this.requestTimeout;\n\t    }\n\t\n\t    if (this.hasXDR()) {\n\t      xhr.onload = function () {\n\t        self.onLoad();\n\t      };\n\t      xhr.onerror = function () {\n\t        self.onError(xhr.responseText);\n\t      };\n\t    } else {\n\t      xhr.onreadystatechange = function () {\n\t        if (xhr.readyState === 2) {\n\t          try {\n\t            var contentType = xhr.getResponseHeader('Content-Type');\n\t            if (self.supportsBinary && contentType === 'application/octet-stream') {\n\t              xhr.responseType = 'arraybuffer';\n\t            }\n\t          } catch (e) {}\n\t        }\n\t        if (4 !== xhr.readyState) return;\n\t        if (200 === xhr.status || 1223 === xhr.status) {\n\t          self.onLoad();\n\t        } else {\n\t          // make sure the `error` event handler that's user-set\n\t          // does not throw in the same tick and gets caught here\n\t          setTimeout(function () {\n\t            self.onError(xhr.status);\n\t          }, 0);\n\t        }\n\t      };\n\t    }\n\t\n\t\n\t    xhr.send(this.data);\n\t  } catch (e) {\n\t    // Need to defer since .create() is called directly fhrom the constructor\n\t    // and thus the 'error' event can only be only bound *after* this exception\n\t    // occurs.  Therefore, also, we cannot throw here at all.\n\t    setTimeout(function () {\n\t      self.onError(e);\n\t    }, 0);\n\t    return;\n\t  }\n\t\n\t  if (typeof document !== 'undefined') {\n\t    this.index = Request.requestsCount++;\n\t    Request.requests[this.index] = this;\n\t  }\n\t};\n\t\n\t/**\n\t * Called upon successful response.\n\t *\n\t * @api private\n\t */\n\t\n\tRequest.prototype.onSuccess = function () {\n\t  this.emit('success');\n\t  this.cleanup();\n\t};\n\t\n\t/**\n\t * Called if we have data.\n\t *\n\t * @api private\n\t */\n\t\n\tRequest.prototype.onData = function (data) {\n\t  this.emit('data', data);\n\t  this.onSuccess();\n\t};\n\t\n\t/**\n\t * Called upon error.\n\t *\n\t * @api private\n\t */\n\t\n\tRequest.prototype.onError = function (err) {\n\t  this.emit('error', err);\n\t  this.cleanup(true);\n\t};\n\t\n\t/**\n\t * Cleans up house.\n\t *\n\t * @api private\n\t */\n\t\n\tRequest.prototype.cleanup = function (fromError) {\n\t  if ('undefined' === typeof this.xhr || null === this.xhr) {\n\t    return;\n\t  }\n\t  // xmlhttprequest\n\t  if (this.hasXDR()) {\n\t    this.xhr.onload = this.xhr.onerror = empty;\n\t  } else {\n\t    this.xhr.onreadystatechange = empty;\n\t  }\n\t\n\t  if (fromError) {\n\t    try {\n\t      this.xhr.abort();\n\t    } catch (e) {}\n\t  }\n\t\n\t  if (typeof document !== 'undefined') {\n\t    delete Request.requests[this.index];\n\t  }\n\t\n\t  this.xhr = null;\n\t};\n\t\n\t/**\n\t * Called upon load.\n\t *\n\t * @api private\n\t */\n\t\n\tRequest.prototype.onLoad = function () {\n\t  var data;\n\t  try {\n\t    var contentType;\n\t    try {\n\t      contentType = this.xhr.getResponseHeader('Content-Type');\n\t    } catch (e) {}\n\t    if (contentType === 'application/octet-stream') {\n\t      data = this.xhr.response || this.xhr.responseText;\n\t    } else {\n\t      data = this.xhr.responseText;\n\t    }\n\t  } catch (e) {\n\t    this.onError(e);\n\t  }\n\t  if (null != data) {\n\t    this.onData(data);\n\t  }\n\t};\n\t\n\t/**\n\t * Check if it has XDomainRequest.\n\t *\n\t * @api private\n\t */\n\t\n\tRequest.prototype.hasXDR = function () {\n\t  return typeof XDomainRequest !== 'undefined' && !this.xs && this.enablesXDR;\n\t};\n\t\n\t/**\n\t * Aborts the request.\n\t *\n\t * @api public\n\t */\n\t\n\tRequest.prototype.abort = function () {\n\t  this.cleanup();\n\t};\n\t\n\t/**\n\t * Aborts pending requests when unloading the window. This is needed to prevent\n\t * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n\t * emitted.\n\t */\n\t\n\tRequest.requestsCount = 0;\n\tRequest.requests = {};\n\t\n\tif (typeof document !== 'undefined') {\n\t  if (typeof attachEvent === 'function') {\n\t    attachEvent('onunload', unloadHandler);\n\t  } else if (typeof addEventListener === 'function') {\n\t    var terminationEvent = 'onpagehide' in self ? 'pagehide' : 'unload';\n\t    addEventListener(terminationEvent, unloadHandler, false);\n\t  }\n\t}\n\t\n\tfunction unloadHandler () {\n\t  for (var i in Request.requests) {\n\t    if (Request.requests.hasOwnProperty(i)) {\n\t      Request.requests[i].abort();\n\t    }\n\t  }\n\t}\n\n\n/***/ }),\n/* 16 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar Transport = __webpack_require__(17);\n\tvar parseqs = __webpack_require__(26);\n\tvar parser = __webpack_require__(18);\n\tvar inherit = __webpack_require__(27);\n\tvar yeast = __webpack_require__(28);\n\tvar debug = __webpack_require__(3)('engine.io-client:polling');\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = Polling;\n\t\n\t/**\n\t * Is XHR2 supported?\n\t */\n\t\n\tvar hasXHR2 = (function () {\n\t  var XMLHttpRequest = __webpack_require__(13);\n\t  var xhr = new XMLHttpRequest({ xdomain: false });\n\t  return null != xhr.responseType;\n\t})();\n\t\n\t/**\n\t * Polling interface.\n\t *\n\t * @param {Object} opts\n\t * @api private\n\t */\n\t\n\tfunction Polling (opts) {\n\t  var forceBase64 = (opts && opts.forceBase64);\n\t  if (!hasXHR2 || forceBase64) {\n\t    this.supportsBinary = false;\n\t  }\n\t  Transport.call(this, opts);\n\t}\n\t\n\t/**\n\t * Inherits from Transport.\n\t */\n\t\n\tinherit(Polling, Transport);\n\t\n\t/**\n\t * Transport name.\n\t */\n\t\n\tPolling.prototype.name = 'polling';\n\t\n\t/**\n\t * Opens the socket (triggers polling). We write a PING message to determine\n\t * when the transport is open.\n\t *\n\t * @api private\n\t */\n\t\n\tPolling.prototype.doOpen = function () {\n\t  this.poll();\n\t};\n\t\n\t/**\n\t * Pauses polling.\n\t *\n\t * @param {Function} callback upon buffers are flushed and transport is paused\n\t * @api private\n\t */\n\t\n\tPolling.prototype.pause = function (onPause) {\n\t  var self = this;\n\t\n\t  this.readyState = 'pausing';\n\t\n\t  function pause () {\n\t\n\t    self.readyState = 'paused';\n\t    onPause();\n\t  }\n\t\n\t  if (this.polling || !this.writable) {\n\t    var total = 0;\n\t\n\t    if (this.polling) {\n\t\n\t      total++;\n\t      this.once('pollComplete', function () {\n\t\n\t        --total || pause();\n\t      });\n\t    }\n\t\n\t    if (!this.writable) {\n\t\n\t      total++;\n\t      this.once('drain', function () {\n\t\n\t        --total || pause();\n\t      });\n\t    }\n\t  } else {\n\t    pause();\n\t  }\n\t};\n\t\n\t/**\n\t * Starts polling cycle.\n\t *\n\t * @api public\n\t */\n\t\n\tPolling.prototype.poll = function () {\n\t\n\t  this.polling = true;\n\t  this.doPoll();\n\t  this.emit('poll');\n\t};\n\t\n\t/**\n\t * Overloads onData to detect payloads.\n\t *\n\t * @api private\n\t */\n\t\n\tPolling.prototype.onData = function (data) {\n\t  var self = this;\n\t\n\t  var callback = function (packet, index, total) {\n\t    // if its the first message we consider the transport open\n\t    if ('opening' === self.readyState) {\n\t      self.onOpen();\n\t    }\n\t\n\t    // if its a close packet, we close the ongoing requests\n\t    if ('close' === packet.type) {\n\t      self.onClose();\n\t      return false;\n\t    }\n\t\n\t    // otherwise bypass onData and handle the message\n\t    self.onPacket(packet);\n\t  };\n\t\n\t  // decode payload\n\t  parser.decodePayload(data, this.socket.binaryType, callback);\n\t\n\t  // if an event did not trigger closing\n\t  if ('closed' !== this.readyState) {\n\t    // if we got data we're not polling\n\t    this.polling = false;\n\t    this.emit('pollComplete');\n\t\n\t    if ('open' === this.readyState) {\n\t      this.poll();\n\t    } else {\n\t\n\t    }\n\t  }\n\t};\n\t\n\t/**\n\t * For polling, send a close packet.\n\t *\n\t * @api private\n\t */\n\t\n\tPolling.prototype.doClose = function () {\n\t  var self = this;\n\t\n\t  function close () {\n\t\n\t    self.write([{ type: 'close' }]);\n\t  }\n\t\n\t  if ('open' === this.readyState) {\n\t\n\t    close();\n\t  } else {\n\t    // in case we're trying to close while\n\t    // handshaking is in progress (GH-164)\n\t\n\t    this.once('open', close);\n\t  }\n\t};\n\t\n\t/**\n\t * Writes a packets payload.\n\t *\n\t * @param {Array} data packets\n\t * @param {Function} drain callback\n\t * @api private\n\t */\n\t\n\tPolling.prototype.write = function (packets) {\n\t  var self = this;\n\t  this.writable = false;\n\t  var callbackfn = function () {\n\t    self.writable = true;\n\t    self.emit('drain');\n\t  };\n\t\n\t  parser.encodePayload(packets, this.supportsBinary, function (data) {\n\t    self.doWrite(data, callbackfn);\n\t  });\n\t};\n\t\n\t/**\n\t * Generates uri for connection.\n\t *\n\t * @api private\n\t */\n\t\n\tPolling.prototype.uri = function () {\n\t  var query = this.query || {};\n\t  var schema = this.secure ? 'https' : 'http';\n\t  var port = '';\n\t\n\t  // cache busting is forced\n\t  if (false !== this.timestampRequests) {\n\t    query[this.timestampParam] = yeast();\n\t  }\n\t\n\t  if (!this.supportsBinary && !query.sid) {\n\t    query.b64 = 1;\n\t  }\n\t\n\t  query = parseqs.encode(query);\n\t\n\t  // avoid port if default for schema\n\t  if (this.port && (('https' === schema && Number(this.port) !== 443) ||\n\t     ('http' === schema && Number(this.port) !== 80))) {\n\t    port = ':' + this.port;\n\t  }\n\t\n\t  // prepend ? to query\n\t  if (query.length) {\n\t    query = '?' + query;\n\t  }\n\t\n\t  var ipv6 = this.hostname.indexOf(':') !== -1;\n\t  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;\n\t};\n\n\n/***/ }),\n/* 17 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar parser = __webpack_require__(18);\n\tvar Emitter = __webpack_require__(5);\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = Transport;\n\t\n\t/**\n\t * Transport abstract constructor.\n\t *\n\t * @param {Object} options.\n\t * @api private\n\t */\n\t\n\tfunction Transport (opts) {\n\t  this.path = opts.path;\n\t  this.hostname = opts.hostname;\n\t  this.port = opts.port;\n\t  this.secure = opts.secure;\n\t  this.query = opts.query;\n\t  this.timestampParam = opts.timestampParam;\n\t  this.timestampRequests = opts.timestampRequests;\n\t  this.readyState = '';\n\t  this.agent = opts.agent || false;\n\t  this.socket = opts.socket;\n\t  this.enablesXDR = opts.enablesXDR;\n\t\n\t  // SSL options for Node.js client\n\t  this.pfx = opts.pfx;\n\t  this.key = opts.key;\n\t  this.passphrase = opts.passphrase;\n\t  this.cert = opts.cert;\n\t  this.ca = opts.ca;\n\t  this.ciphers = opts.ciphers;\n\t  this.rejectUnauthorized = opts.rejectUnauthorized;\n\t  this.forceNode = opts.forceNode;\n\t\n\t  // results of ReactNative environment detection\n\t  this.isReactNative = opts.isReactNative;\n\t\n\t  // other options for Node.js client\n\t  this.extraHeaders = opts.extraHeaders;\n\t  this.localAddress = opts.localAddress;\n\t}\n\t\n\t/**\n\t * Mix in `Emitter`.\n\t */\n\t\n\tEmitter(Transport.prototype);\n\t\n\t/**\n\t * Emits an error.\n\t *\n\t * @param {String} str\n\t * @return {Transport} for chaining\n\t * @api public\n\t */\n\t\n\tTransport.prototype.onError = function (msg, desc) {\n\t  var err = new Error(msg);\n\t  err.type = 'TransportError';\n\t  err.description = desc;\n\t  this.emit('error', err);\n\t  return this;\n\t};\n\t\n\t/**\n\t * Opens the transport.\n\t *\n\t * @api public\n\t */\n\t\n\tTransport.prototype.open = function () {\n\t  if ('closed' === this.readyState || '' === this.readyState) {\n\t    this.readyState = 'opening';\n\t    this.doOpen();\n\t  }\n\t\n\t  return this;\n\t};\n\t\n\t/**\n\t * Closes the transport.\n\t *\n\t * @api private\n\t */\n\t\n\tTransport.prototype.close = function () {\n\t  if ('opening' === this.readyState || 'open' === this.readyState) {\n\t    this.doClose();\n\t    this.onClose();\n\t  }\n\t\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sends multiple packets.\n\t *\n\t * @param {Array} packets\n\t * @api private\n\t */\n\t\n\tTransport.prototype.send = function (packets) {\n\t  if ('open' === this.readyState) {\n\t    this.write(packets);\n\t  } else {\n\t    throw new Error('Transport not open');\n\t  }\n\t};\n\t\n\t/**\n\t * Called upon open\n\t *\n\t * @api private\n\t */\n\t\n\tTransport.prototype.onOpen = function () {\n\t  this.readyState = 'open';\n\t  this.writable = true;\n\t  this.emit('open');\n\t};\n\t\n\t/**\n\t * Called with data.\n\t *\n\t * @param {String} data\n\t * @api private\n\t */\n\t\n\tTransport.prototype.onData = function (data) {\n\t  var packet = parser.decodePacket(data, this.socket.binaryType);\n\t  this.onPacket(packet);\n\t};\n\t\n\t/**\n\t * Called with a decoded packet.\n\t */\n\t\n\tTransport.prototype.onPacket = function (packet) {\n\t  this.emit('packet', packet);\n\t};\n\t\n\t/**\n\t * Called upon close.\n\t *\n\t * @api private\n\t */\n\t\n\tTransport.prototype.onClose = function () {\n\t  this.readyState = 'closed';\n\t  this.emit('close');\n\t};\n\n\n/***/ }),\n/* 18 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar keys = __webpack_require__(19);\n\tvar hasBinary = __webpack_require__(20);\n\tvar sliceBuffer = __webpack_require__(21);\n\tvar after = __webpack_require__(22);\n\tvar utf8 = __webpack_require__(23);\n\t\n\tvar base64encoder;\n\tif (typeof ArrayBuffer !== 'undefined') {\n\t  base64encoder = __webpack_require__(24);\n\t}\n\t\n\t/**\n\t * Check if we are running an android browser. That requires us to use\n\t * ArrayBuffer with polling transports...\n\t *\n\t * http://ghinda.net/jpeg-blob-ajax-android/\n\t */\n\t\n\tvar isAndroid = typeof navigator !== 'undefined' && /Android/i.test(navigator.userAgent);\n\t\n\t/**\n\t * Check if we are running in PhantomJS.\n\t * Uploading a Blob with PhantomJS does not work correctly, as reported here:\n\t * https://github.com/ariya/phantomjs/issues/11395\n\t * @type boolean\n\t */\n\tvar isPhantomJS = typeof navigator !== 'undefined' && /PhantomJS/i.test(navigator.userAgent);\n\t\n\t/**\n\t * When true, avoids using Blobs to encode payloads.\n\t * @type boolean\n\t */\n\tvar dontSendBlobs = isAndroid || isPhantomJS;\n\t\n\t/**\n\t * Current protocol version.\n\t */\n\t\n\texports.protocol = 3;\n\t\n\t/**\n\t * Packet types.\n\t */\n\t\n\tvar packets = exports.packets = {\n\t    open:     0    // non-ws\n\t  , close:    1    // non-ws\n\t  , ping:     2\n\t  , pong:     3\n\t  , message:  4\n\t  , upgrade:  5\n\t  , noop:     6\n\t};\n\t\n\tvar packetslist = keys(packets);\n\t\n\t/**\n\t * Premade error packet.\n\t */\n\t\n\tvar err = { type: 'error', data: 'parser error' };\n\t\n\t/**\n\t * Create a blob api even for blob builder when vendor prefixes exist\n\t */\n\t\n\tvar Blob = __webpack_require__(25);\n\t\n\t/**\n\t * Encodes a packet.\n\t *\n\t *     <packet type id> [ <data> ]\n\t *\n\t * Example:\n\t *\n\t *     5hello world\n\t *     3\n\t *     4\n\t *\n\t * Binary is encoded in an identical principle\n\t *\n\t * @api private\n\t */\n\t\n\texports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {\n\t  if (typeof supportsBinary === 'function') {\n\t    callback = supportsBinary;\n\t    supportsBinary = false;\n\t  }\n\t\n\t  if (typeof utf8encode === 'function') {\n\t    callback = utf8encode;\n\t    utf8encode = null;\n\t  }\n\t\n\t  var data = (packet.data === undefined)\n\t    ? undefined\n\t    : packet.data.buffer || packet.data;\n\t\n\t  if (typeof ArrayBuffer !== 'undefined' && data instanceof ArrayBuffer) {\n\t    return encodeArrayBuffer(packet, supportsBinary, callback);\n\t  } else if (typeof Blob !== 'undefined' && data instanceof Blob) {\n\t    return encodeBlob(packet, supportsBinary, callback);\n\t  }\n\t\n\t  // might be an object with { base64: true, data: dataAsBase64String }\n\t  if (data && data.base64) {\n\t    return encodeBase64Object(packet, callback);\n\t  }\n\t\n\t  // Sending data as a utf-8 string\n\t  var encoded = packets[packet.type];\n\t\n\t  // data fragment is optional\n\t  if (undefined !== packet.data) {\n\t    encoded += utf8encode ? utf8.encode(String(packet.data), { strict: false }) : String(packet.data);\n\t  }\n\t\n\t  return callback('' + encoded);\n\t\n\t};\n\t\n\tfunction encodeBase64Object(packet, callback) {\n\t  // packet data is an object { base64: true, data: dataAsBase64String }\n\t  var message = 'b' + exports.packets[packet.type] + packet.data.data;\n\t  return callback(message);\n\t}\n\t\n\t/**\n\t * Encode packet helpers for binary types\n\t */\n\t\n\tfunction encodeArrayBuffer(packet, supportsBinary, callback) {\n\t  if (!supportsBinary) {\n\t    return exports.encodeBase64Packet(packet, callback);\n\t  }\n\t\n\t  var data = packet.data;\n\t  var contentArray = new Uint8Array(data);\n\t  var resultBuffer = new Uint8Array(1 + data.byteLength);\n\t\n\t  resultBuffer[0] = packets[packet.type];\n\t  for (var i = 0; i < contentArray.length; i++) {\n\t    resultBuffer[i+1] = contentArray[i];\n\t  }\n\t\n\t  return callback(resultBuffer.buffer);\n\t}\n\t\n\tfunction encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {\n\t  if (!supportsBinary) {\n\t    return exports.encodeBase64Packet(packet, callback);\n\t  }\n\t\n\t  var fr = new FileReader();\n\t  fr.onload = function() {\n\t    exports.encodePacket({ type: packet.type, data: fr.result }, supportsBinary, true, callback);\n\t  };\n\t  return fr.readAsArrayBuffer(packet.data);\n\t}\n\t\n\tfunction encodeBlob(packet, supportsBinary, callback) {\n\t  if (!supportsBinary) {\n\t    return exports.encodeBase64Packet(packet, callback);\n\t  }\n\t\n\t  if (dontSendBlobs) {\n\t    return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);\n\t  }\n\t\n\t  var length = new Uint8Array(1);\n\t  length[0] = packets[packet.type];\n\t  var blob = new Blob([length.buffer, packet.data]);\n\t\n\t  return callback(blob);\n\t}\n\t\n\t/**\n\t * Encodes a packet with binary data in a base64 string\n\t *\n\t * @param {Object} packet, has `type` and `data`\n\t * @return {String} base64 encoded message\n\t */\n\t\n\texports.encodeBase64Packet = function(packet, callback) {\n\t  var message = 'b' + exports.packets[packet.type];\n\t  if (typeof Blob !== 'undefined' && packet.data instanceof Blob) {\n\t    var fr = new FileReader();\n\t    fr.onload = function() {\n\t      var b64 = fr.result.split(',')[1];\n\t      callback(message + b64);\n\t    };\n\t    return fr.readAsDataURL(packet.data);\n\t  }\n\t\n\t  var b64data;\n\t  try {\n\t    b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));\n\t  } catch (e) {\n\t    // iPhone Safari doesn't let you apply with typed arrays\n\t    var typed = new Uint8Array(packet.data);\n\t    var basic = new Array(typed.length);\n\t    for (var i = 0; i < typed.length; i++) {\n\t      basic[i] = typed[i];\n\t    }\n\t    b64data = String.fromCharCode.apply(null, basic);\n\t  }\n\t  message += btoa(b64data);\n\t  return callback(message);\n\t};\n\t\n\t/**\n\t * Decodes a packet. Changes format to Blob if requested.\n\t *\n\t * @return {Object} with `type` and `data` (if any)\n\t * @api private\n\t */\n\t\n\texports.decodePacket = function (data, binaryType, utf8decode) {\n\t  if (data === undefined) {\n\t    return err;\n\t  }\n\t  // String data\n\t  if (typeof data === 'string') {\n\t    if (data.charAt(0) === 'b') {\n\t      return exports.decodeBase64Packet(data.substr(1), binaryType);\n\t    }\n\t\n\t    if (utf8decode) {\n\t      data = tryDecode(data);\n\t      if (data === false) {\n\t        return err;\n\t      }\n\t    }\n\t    var type = data.charAt(0);\n\t\n\t    if (Number(type) != type || !packetslist[type]) {\n\t      return err;\n\t    }\n\t\n\t    if (data.length > 1) {\n\t      return { type: packetslist[type], data: data.substring(1) };\n\t    } else {\n\t      return { type: packetslist[type] };\n\t    }\n\t  }\n\t\n\t  var asArray = new Uint8Array(data);\n\t  var type = asArray[0];\n\t  var rest = sliceBuffer(data, 1);\n\t  if (Blob && binaryType === 'blob') {\n\t    rest = new Blob([rest]);\n\t  }\n\t  return { type: packetslist[type], data: rest };\n\t};\n\t\n\tfunction tryDecode(data) {\n\t  try {\n\t    data = utf8.decode(data, { strict: false });\n\t  } catch (e) {\n\t    return false;\n\t  }\n\t  return data;\n\t}\n\t\n\t/**\n\t * Decodes a packet encoded in a base64 string\n\t *\n\t * @param {String} base64 encoded message\n\t * @return {Object} with `type` and `data` (if any)\n\t */\n\t\n\texports.decodeBase64Packet = function(msg, binaryType) {\n\t  var type = packetslist[msg.charAt(0)];\n\t  if (!base64encoder) {\n\t    return { type: type, data: { base64: true, data: msg.substr(1) } };\n\t  }\n\t\n\t  var data = base64encoder.decode(msg.substr(1));\n\t\n\t  if (binaryType === 'blob' && Blob) {\n\t    data = new Blob([data]);\n\t  }\n\t\n\t  return { type: type, data: data };\n\t};\n\t\n\t/**\n\t * Encodes multiple messages (payload).\n\t *\n\t *     <length>:data\n\t *\n\t * Example:\n\t *\n\t *     11:hello world2:hi\n\t *\n\t * If any contents are binary, they will be encoded as base64 strings. Base64\n\t * encoded strings are marked with a b before the length specifier\n\t *\n\t * @param {Array} packets\n\t * @api private\n\t */\n\t\n\texports.encodePayload = function (packets, supportsBinary, callback) {\n\t  if (typeof supportsBinary === 'function') {\n\t    callback = supportsBinary;\n\t    supportsBinary = null;\n\t  }\n\t\n\t  var isBinary = hasBinary(packets);\n\t\n\t  if (supportsBinary && isBinary) {\n\t    if (Blob && !dontSendBlobs) {\n\t      return exports.encodePayloadAsBlob(packets, callback);\n\t    }\n\t\n\t    return exports.encodePayloadAsArrayBuffer(packets, callback);\n\t  }\n\t\n\t  if (!packets.length) {\n\t    return callback('0:');\n\t  }\n\t\n\t  function setLengthHeader(message) {\n\t    return message.length + ':' + message;\n\t  }\n\t\n\t  function encodeOne(packet, doneCallback) {\n\t    exports.encodePacket(packet, !isBinary ? false : supportsBinary, false, function(message) {\n\t      doneCallback(null, setLengthHeader(message));\n\t    });\n\t  }\n\t\n\t  map(packets, encodeOne, function(err, results) {\n\t    return callback(results.join(''));\n\t  });\n\t};\n\t\n\t/**\n\t * Async array map using after\n\t */\n\t\n\tfunction map(ary, each, done) {\n\t  var result = new Array(ary.length);\n\t  var next = after(ary.length, done);\n\t\n\t  var eachWithIndex = function(i, el, cb) {\n\t    each(el, function(error, msg) {\n\t      result[i] = msg;\n\t      cb(error, result);\n\t    });\n\t  };\n\t\n\t  for (var i = 0; i < ary.length; i++) {\n\t    eachWithIndex(i, ary[i], next);\n\t  }\n\t}\n\t\n\t/*\n\t * Decodes data when a payload is maybe expected. Possible binary contents are\n\t * decoded from their base64 representation\n\t *\n\t * @param {String} data, callback method\n\t * @api public\n\t */\n\t\n\texports.decodePayload = function (data, binaryType, callback) {\n\t  if (typeof data !== 'string') {\n\t    return exports.decodePayloadAsBinary(data, binaryType, callback);\n\t  }\n\t\n\t  if (typeof binaryType === 'function') {\n\t    callback = binaryType;\n\t    binaryType = null;\n\t  }\n\t\n\t  var packet;\n\t  if (data === '') {\n\t    // parser error - ignoring payload\n\t    return callback(err, 0, 1);\n\t  }\n\t\n\t  var length = '', n, msg;\n\t\n\t  for (var i = 0, l = data.length; i < l; i++) {\n\t    var chr = data.charAt(i);\n\t\n\t    if (chr !== ':') {\n\t      length += chr;\n\t      continue;\n\t    }\n\t\n\t    if (length === '' || (length != (n = Number(length)))) {\n\t      // parser error - ignoring payload\n\t      return callback(err, 0, 1);\n\t    }\n\t\n\t    msg = data.substr(i + 1, n);\n\t\n\t    if (length != msg.length) {\n\t      // parser error - ignoring payload\n\t      return callback(err, 0, 1);\n\t    }\n\t\n\t    if (msg.length) {\n\t      packet = exports.decodePacket(msg, binaryType, false);\n\t\n\t      if (err.type === packet.type && err.data === packet.data) {\n\t        // parser error in individual packet - ignoring payload\n\t        return callback(err, 0, 1);\n\t      }\n\t\n\t      var ret = callback(packet, i + n, l);\n\t      if (false === ret) return;\n\t    }\n\t\n\t    // advance cursor\n\t    i += n;\n\t    length = '';\n\t  }\n\t\n\t  if (length !== '') {\n\t    // parser error - ignoring payload\n\t    return callback(err, 0, 1);\n\t  }\n\t\n\t};\n\t\n\t/**\n\t * Encodes multiple messages (payload) as binary.\n\t *\n\t * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number\n\t * 255><data>\n\t *\n\t * Example:\n\t * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers\n\t *\n\t * @param {Array} packets\n\t * @return {ArrayBuffer} encoded payload\n\t * @api private\n\t */\n\t\n\texports.encodePayloadAsArrayBuffer = function(packets, callback) {\n\t  if (!packets.length) {\n\t    return callback(new ArrayBuffer(0));\n\t  }\n\t\n\t  function encodeOne(packet, doneCallback) {\n\t    exports.encodePacket(packet, true, true, function(data) {\n\t      return doneCallback(null, data);\n\t    });\n\t  }\n\t\n\t  map(packets, encodeOne, function(err, encodedPackets) {\n\t    var totalLength = encodedPackets.reduce(function(acc, p) {\n\t      var len;\n\t      if (typeof p === 'string'){\n\t        len = p.length;\n\t      } else {\n\t        len = p.byteLength;\n\t      }\n\t      return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2\n\t    }, 0);\n\t\n\t    var resultArray = new Uint8Array(totalLength);\n\t\n\t    var bufferIndex = 0;\n\t    encodedPackets.forEach(function(p) {\n\t      var isString = typeof p === 'string';\n\t      var ab = p;\n\t      if (isString) {\n\t        var view = new Uint8Array(p.length);\n\t        for (var i = 0; i < p.length; i++) {\n\t          view[i] = p.charCodeAt(i);\n\t        }\n\t        ab = view.buffer;\n\t      }\n\t\n\t      if (isString) { // not true binary\n\t        resultArray[bufferIndex++] = 0;\n\t      } else { // true binary\n\t        resultArray[bufferIndex++] = 1;\n\t      }\n\t\n\t      var lenStr = ab.byteLength.toString();\n\t      for (var i = 0; i < lenStr.length; i++) {\n\t        resultArray[bufferIndex++] = parseInt(lenStr[i]);\n\t      }\n\t      resultArray[bufferIndex++] = 255;\n\t\n\t      var view = new Uint8Array(ab);\n\t      for (var i = 0; i < view.length; i++) {\n\t        resultArray[bufferIndex++] = view[i];\n\t      }\n\t    });\n\t\n\t    return callback(resultArray.buffer);\n\t  });\n\t};\n\t\n\t/**\n\t * Encode as Blob\n\t */\n\t\n\texports.encodePayloadAsBlob = function(packets, callback) {\n\t  function encodeOne(packet, doneCallback) {\n\t    exports.encodePacket(packet, true, true, function(encoded) {\n\t      var binaryIdentifier = new Uint8Array(1);\n\t      binaryIdentifier[0] = 1;\n\t      if (typeof encoded === 'string') {\n\t        var view = new Uint8Array(encoded.length);\n\t        for (var i = 0; i < encoded.length; i++) {\n\t          view[i] = encoded.charCodeAt(i);\n\t        }\n\t        encoded = view.buffer;\n\t        binaryIdentifier[0] = 0;\n\t      }\n\t\n\t      var len = (encoded instanceof ArrayBuffer)\n\t        ? encoded.byteLength\n\t        : encoded.size;\n\t\n\t      var lenStr = len.toString();\n\t      var lengthAry = new Uint8Array(lenStr.length + 1);\n\t      for (var i = 0; i < lenStr.length; i++) {\n\t        lengthAry[i] = parseInt(lenStr[i]);\n\t      }\n\t      lengthAry[lenStr.length] = 255;\n\t\n\t      if (Blob) {\n\t        var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);\n\t        doneCallback(null, blob);\n\t      }\n\t    });\n\t  }\n\t\n\t  map(packets, encodeOne, function(err, results) {\n\t    return callback(new Blob(results));\n\t  });\n\t};\n\t\n\t/*\n\t * Decodes data when a payload is maybe expected. Strings are decoded by\n\t * interpreting each byte as a key code for entries marked to start with 0. See\n\t * description of encodePayloadAsBinary\n\t *\n\t * @param {ArrayBuffer} data, callback method\n\t * @api public\n\t */\n\t\n\texports.decodePayloadAsBinary = function (data, binaryType, callback) {\n\t  if (typeof binaryType === 'function') {\n\t    callback = binaryType;\n\t    binaryType = null;\n\t  }\n\t\n\t  var bufferTail = data;\n\t  var buffers = [];\n\t\n\t  while (bufferTail.byteLength > 0) {\n\t    var tailArray = new Uint8Array(bufferTail);\n\t    var isString = tailArray[0] === 0;\n\t    var msgLength = '';\n\t\n\t    for (var i = 1; ; i++) {\n\t      if (tailArray[i] === 255) break;\n\t\n\t      // 310 = char length of Number.MAX_VALUE\n\t      if (msgLength.length > 310) {\n\t        return callback(err, 0, 1);\n\t      }\n\t\n\t      msgLength += tailArray[i];\n\t    }\n\t\n\t    bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);\n\t    msgLength = parseInt(msgLength);\n\t\n\t    var msg = sliceBuffer(bufferTail, 0, msgLength);\n\t    if (isString) {\n\t      try {\n\t        msg = String.fromCharCode.apply(null, new Uint8Array(msg));\n\t      } catch (e) {\n\t        // iPhone Safari doesn't let you apply to typed arrays\n\t        var typed = new Uint8Array(msg);\n\t        msg = '';\n\t        for (var i = 0; i < typed.length; i++) {\n\t          msg += String.fromCharCode(typed[i]);\n\t        }\n\t      }\n\t    }\n\t\n\t    buffers.push(msg);\n\t    bufferTail = sliceBuffer(bufferTail, msgLength);\n\t  }\n\t\n\t  var total = buffers.length;\n\t  buffers.forEach(function(buffer, i) {\n\t    callback(exports.decodePacket(buffer, binaryType, true), i, total);\n\t  });\n\t};\n\n\n/***/ }),\n/* 19 */\n/***/ (function(module, exports) {\n\n\t\n\t/**\n\t * Gets the keys for an object.\n\t *\n\t * @return {Array} keys\n\t * @api private\n\t */\n\t\n\tmodule.exports = Object.keys || function keys (obj){\n\t  var arr = [];\n\t  var has = Object.prototype.hasOwnProperty;\n\t\n\t  for (var i in obj) {\n\t    if (has.call(obj, i)) {\n\t      arr.push(i);\n\t    }\n\t  }\n\t  return arr;\n\t};\n\n\n/***/ }),\n/* 20 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/* global Blob File */\n\t\n\t/*\n\t * Module requirements.\n\t */\n\t\n\tvar isArray = __webpack_require__(7);\n\t\n\tvar toString = Object.prototype.toString;\n\tvar withNativeBlob = typeof Blob === 'function' ||\n\t                        typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]';\n\tvar withNativeFile = typeof File === 'function' ||\n\t                        typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]';\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = hasBinary;\n\t\n\t/**\n\t * Checks for binary data.\n\t *\n\t * Supports Buffer, ArrayBuffer, Blob and File.\n\t *\n\t * @param {Object} anything\n\t * @api public\n\t */\n\t\n\tfunction hasBinary (obj) {\n\t  if (!obj || typeof obj !== 'object') {\n\t    return false;\n\t  }\n\t\n\t  if (isArray(obj)) {\n\t    for (var i = 0, l = obj.length; i < l; i++) {\n\t      if (hasBinary(obj[i])) {\n\t        return true;\n\t      }\n\t    }\n\t    return false;\n\t  }\n\t\n\t  if ((typeof Buffer === 'function' && Buffer.isBuffer && Buffer.isBuffer(obj)) ||\n\t    (typeof ArrayBuffer === 'function' && obj instanceof ArrayBuffer) ||\n\t    (withNativeBlob && obj instanceof Blob) ||\n\t    (withNativeFile && obj instanceof File)\n\t  ) {\n\t    return true;\n\t  }\n\t\n\t  // see: https://github.com/Automattic/has-binary/pull/4\n\t  if (obj.toJSON && typeof obj.toJSON === 'function' && arguments.length === 1) {\n\t    return hasBinary(obj.toJSON(), true);\n\t  }\n\t\n\t  for (var key in obj) {\n\t    if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n\t      return true;\n\t    }\n\t  }\n\t\n\t  return false;\n\t}\n\n\n/***/ }),\n/* 21 */\n/***/ (function(module, exports) {\n\n\t/**\n\t * An abstraction for slicing an arraybuffer even when\n\t * ArrayBuffer.prototype.slice is not supported\n\t *\n\t * @api public\n\t */\n\t\n\tmodule.exports = function(arraybuffer, start, end) {\n\t  var bytes = arraybuffer.byteLength;\n\t  start = start || 0;\n\t  end = end || bytes;\n\t\n\t  if (arraybuffer.slice) { return arraybuffer.slice(start, end); }\n\t\n\t  if (start < 0) { start += bytes; }\n\t  if (end < 0) { end += bytes; }\n\t  if (end > bytes) { end = bytes; }\n\t\n\t  if (start >= bytes || start >= end || bytes === 0) {\n\t    return new ArrayBuffer(0);\n\t  }\n\t\n\t  var abv = new Uint8Array(arraybuffer);\n\t  var result = new Uint8Array(end - start);\n\t  for (var i = start, ii = 0; i < end; i++, ii++) {\n\t    result[ii] = abv[i];\n\t  }\n\t  return result.buffer;\n\t};\n\n\n/***/ }),\n/* 22 */\n/***/ (function(module, exports) {\n\n\tmodule.exports = after\n\t\n\tfunction after(count, callback, err_cb) {\n\t    var bail = false\n\t    err_cb = err_cb || noop\n\t    proxy.count = count\n\t\n\t    return (count === 0) ? callback() : proxy\n\t\n\t    function proxy(err, result) {\n\t        if (proxy.count <= 0) {\n\t            throw new Error('after called too many times')\n\t        }\n\t        --proxy.count\n\t\n\t        // after first error, rest are passed to err_cb\n\t        if (err) {\n\t            bail = true\n\t            callback(err)\n\t            // future error callbacks will go to error handler\n\t            callback = err_cb\n\t        } else if (proxy.count === 0 && !bail) {\n\t            callback(null, result)\n\t        }\n\t    }\n\t}\n\t\n\tfunction noop() {}\n\n\n/***/ }),\n/* 23 */\n/***/ (function(module, exports) {\n\n\t/*! https://mths.be/utf8js v2.1.2 by @mathias */\n\t\n\tvar stringFromCharCode = String.fromCharCode;\n\t\n\t// Taken from https://mths.be/punycode\n\tfunction ucs2decode(string) {\n\t\tvar output = [];\n\t\tvar counter = 0;\n\t\tvar length = string.length;\n\t\tvar value;\n\t\tvar extra;\n\t\twhile (counter < length) {\n\t\t\tvalue = string.charCodeAt(counter++);\n\t\t\tif (value >= 0xD800 && value <= 0xDBFF && counter < length) {\n\t\t\t\t// high surrogate, and there is a next character\n\t\t\t\textra = string.charCodeAt(counter++);\n\t\t\t\tif ((extra & 0xFC00) == 0xDC00) { // low surrogate\n\t\t\t\t\toutput.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);\n\t\t\t\t} else {\n\t\t\t\t\t// unmatched surrogate; only append this code unit, in case the next\n\t\t\t\t\t// code unit is the high surrogate of a surrogate pair\n\t\t\t\t\toutput.push(value);\n\t\t\t\t\tcounter--;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\toutput.push(value);\n\t\t\t}\n\t\t}\n\t\treturn output;\n\t}\n\t\n\t// Taken from https://mths.be/punycode\n\tfunction ucs2encode(array) {\n\t\tvar length = array.length;\n\t\tvar index = -1;\n\t\tvar value;\n\t\tvar output = '';\n\t\twhile (++index < length) {\n\t\t\tvalue = array[index];\n\t\t\tif (value > 0xFFFF) {\n\t\t\t\tvalue -= 0x10000;\n\t\t\t\toutput += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);\n\t\t\t\tvalue = 0xDC00 | value & 0x3FF;\n\t\t\t}\n\t\t\toutput += stringFromCharCode(value);\n\t\t}\n\t\treturn output;\n\t}\n\t\n\tfunction checkScalarValue(codePoint, strict) {\n\t\tif (codePoint >= 0xD800 && codePoint <= 0xDFFF) {\n\t\t\tif (strict) {\n\t\t\t\tthrow Error(\n\t\t\t\t\t'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +\n\t\t\t\t\t' is not a scalar value'\n\t\t\t\t);\n\t\t\t}\n\t\t\treturn false;\n\t\t}\n\t\treturn true;\n\t}\n\t/*--------------------------------------------------------------------------*/\n\t\n\tfunction createByte(codePoint, shift) {\n\t\treturn stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);\n\t}\n\t\n\tfunction encodeCodePoint(codePoint, strict) {\n\t\tif ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence\n\t\t\treturn stringFromCharCode(codePoint);\n\t\t}\n\t\tvar symbol = '';\n\t\tif ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence\n\t\t\tsymbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);\n\t\t}\n\t\telse if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence\n\t\t\tif (!checkScalarValue(codePoint, strict)) {\n\t\t\t\tcodePoint = 0xFFFD;\n\t\t\t}\n\t\t\tsymbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);\n\t\t\tsymbol += createByte(codePoint, 6);\n\t\t}\n\t\telse if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence\n\t\t\tsymbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);\n\t\t\tsymbol += createByte(codePoint, 12);\n\t\t\tsymbol += createByte(codePoint, 6);\n\t\t}\n\t\tsymbol += stringFromCharCode((codePoint & 0x3F) | 0x80);\n\t\treturn symbol;\n\t}\n\t\n\tfunction utf8encode(string, opts) {\n\t\topts = opts || {};\n\t\tvar strict = false !== opts.strict;\n\t\n\t\tvar codePoints = ucs2decode(string);\n\t\tvar length = codePoints.length;\n\t\tvar index = -1;\n\t\tvar codePoint;\n\t\tvar byteString = '';\n\t\twhile (++index < length) {\n\t\t\tcodePoint = codePoints[index];\n\t\t\tbyteString += encodeCodePoint(codePoint, strict);\n\t\t}\n\t\treturn byteString;\n\t}\n\t\n\t/*--------------------------------------------------------------------------*/\n\t\n\tfunction readContinuationByte() {\n\t\tif (byteIndex >= byteCount) {\n\t\t\tthrow Error('Invalid byte index');\n\t\t}\n\t\n\t\tvar continuationByte = byteArray[byteIndex] & 0xFF;\n\t\tbyteIndex++;\n\t\n\t\tif ((continuationByte & 0xC0) == 0x80) {\n\t\t\treturn continuationByte & 0x3F;\n\t\t}\n\t\n\t\t// If we end up here, it’s not a continuation byte\n\t\tthrow Error('Invalid continuation byte');\n\t}\n\t\n\tfunction decodeSymbol(strict) {\n\t\tvar byte1;\n\t\tvar byte2;\n\t\tvar byte3;\n\t\tvar byte4;\n\t\tvar codePoint;\n\t\n\t\tif (byteIndex > byteCount) {\n\t\t\tthrow Error('Invalid byte index');\n\t\t}\n\t\n\t\tif (byteIndex == byteCount) {\n\t\t\treturn false;\n\t\t}\n\t\n\t\t// Read first byte\n\t\tbyte1 = byteArray[byteIndex] & 0xFF;\n\t\tbyteIndex++;\n\t\n\t\t// 1-byte sequence (no continuation bytes)\n\t\tif ((byte1 & 0x80) == 0) {\n\t\t\treturn byte1;\n\t\t}\n\t\n\t\t// 2-byte sequence\n\t\tif ((byte1 & 0xE0) == 0xC0) {\n\t\t\tbyte2 = readContinuationByte();\n\t\t\tcodePoint = ((byte1 & 0x1F) << 6) | byte2;\n\t\t\tif (codePoint >= 0x80) {\n\t\t\t\treturn codePoint;\n\t\t\t} else {\n\t\t\t\tthrow Error('Invalid continuation byte');\n\t\t\t}\n\t\t}\n\t\n\t\t// 3-byte sequence (may include unpaired surrogates)\n\t\tif ((byte1 & 0xF0) == 0xE0) {\n\t\t\tbyte2 = readContinuationByte();\n\t\t\tbyte3 = readContinuationByte();\n\t\t\tcodePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;\n\t\t\tif (codePoint >= 0x0800) {\n\t\t\t\treturn checkScalarValue(codePoint, strict) ? codePoint : 0xFFFD;\n\t\t\t} else {\n\t\t\t\tthrow Error('Invalid continuation byte');\n\t\t\t}\n\t\t}\n\t\n\t\t// 4-byte sequence\n\t\tif ((byte1 & 0xF8) == 0xF0) {\n\t\t\tbyte2 = readContinuationByte();\n\t\t\tbyte3 = readContinuationByte();\n\t\t\tbyte4 = readContinuationByte();\n\t\t\tcodePoint = ((byte1 & 0x07) << 0x12) | (byte2 << 0x0C) |\n\t\t\t\t(byte3 << 0x06) | byte4;\n\t\t\tif (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {\n\t\t\t\treturn codePoint;\n\t\t\t}\n\t\t}\n\t\n\t\tthrow Error('Invalid UTF-8 detected');\n\t}\n\t\n\tvar byteArray;\n\tvar byteCount;\n\tvar byteIndex;\n\tfunction utf8decode(byteString, opts) {\n\t\topts = opts || {};\n\t\tvar strict = false !== opts.strict;\n\t\n\t\tbyteArray = ucs2decode(byteString);\n\t\tbyteCount = byteArray.length;\n\t\tbyteIndex = 0;\n\t\tvar codePoints = [];\n\t\tvar tmp;\n\t\twhile ((tmp = decodeSymbol(strict)) !== false) {\n\t\t\tcodePoints.push(tmp);\n\t\t}\n\t\treturn ucs2encode(codePoints);\n\t}\n\t\n\tmodule.exports = {\n\t\tversion: '2.1.2',\n\t\tencode: utf8encode,\n\t\tdecode: utf8decode\n\t};\n\n\n/***/ }),\n/* 24 */\n/***/ (function(module, exports) {\n\n\t/*\n\t * base64-arraybuffer\n\t * https://github.com/niklasvh/base64-arraybuffer\n\t *\n\t * Copyright (c) 2012 Niklas von Hertzen\n\t * Licensed under the MIT license.\n\t */\n\t(function(){\n\t  \"use strict\";\n\t\n\t  var chars = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\";\n\t\n\t  // Use a lookup table to find the index.\n\t  var lookup = new Uint8Array(256);\n\t  for (var i = 0; i < chars.length; i++) {\n\t    lookup[chars.charCodeAt(i)] = i;\n\t  }\n\t\n\t  exports.encode = function(arraybuffer) {\n\t    var bytes = new Uint8Array(arraybuffer),\n\t    i, len = bytes.length, base64 = \"\";\n\t\n\t    for (i = 0; i < len; i+=3) {\n\t      base64 += chars[bytes[i] >> 2];\n\t      base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n\t      base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n\t      base64 += chars[bytes[i + 2] & 63];\n\t    }\n\t\n\t    if ((len % 3) === 2) {\n\t      base64 = base64.substring(0, base64.length - 1) + \"=\";\n\t    } else if (len % 3 === 1) {\n\t      base64 = base64.substring(0, base64.length - 2) + \"==\";\n\t    }\n\t\n\t    return base64;\n\t  };\n\t\n\t  exports.decode =  function(base64) {\n\t    var bufferLength = base64.length * 0.75,\n\t    len = base64.length, i, p = 0,\n\t    encoded1, encoded2, encoded3, encoded4;\n\t\n\t    if (base64[base64.length - 1] === \"=\") {\n\t      bufferLength--;\n\t      if (base64[base64.length - 2] === \"=\") {\n\t        bufferLength--;\n\t      }\n\t    }\n\t\n\t    var arraybuffer = new ArrayBuffer(bufferLength),\n\t    bytes = new Uint8Array(arraybuffer);\n\t\n\t    for (i = 0; i < len; i+=4) {\n\t      encoded1 = lookup[base64.charCodeAt(i)];\n\t      encoded2 = lookup[base64.charCodeAt(i+1)];\n\t      encoded3 = lookup[base64.charCodeAt(i+2)];\n\t      encoded4 = lookup[base64.charCodeAt(i+3)];\n\t\n\t      bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n\t      bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n\t      bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n\t    }\n\t\n\t    return arraybuffer;\n\t  };\n\t})();\n\n\n/***/ }),\n/* 25 */\n/***/ (function(module, exports) {\n\n\t/**\r\n\t * Create a blob builder even when vendor prefixes exist\r\n\t */\r\n\t\r\n\tvar BlobBuilder = typeof BlobBuilder !== 'undefined' ? BlobBuilder :\r\n\t  typeof WebKitBlobBuilder !== 'undefined' ? WebKitBlobBuilder :\r\n\t  typeof MSBlobBuilder !== 'undefined' ? MSBlobBuilder :\r\n\t  typeof MozBlobBuilder !== 'undefined' ? MozBlobBuilder : \r\n\t  false;\r\n\t\r\n\t/**\r\n\t * Check if Blob constructor is supported\r\n\t */\r\n\t\r\n\tvar blobSupported = (function() {\r\n\t  try {\r\n\t    var a = new Blob(['hi']);\r\n\t    return a.size === 2;\r\n\t  } catch(e) {\r\n\t    return false;\r\n\t  }\r\n\t})();\r\n\t\r\n\t/**\r\n\t * Check if Blob constructor supports ArrayBufferViews\r\n\t * Fails in Safari 6, so we need to map to ArrayBuffers there.\r\n\t */\r\n\t\r\n\tvar blobSupportsArrayBufferView = blobSupported && (function() {\r\n\t  try {\r\n\t    var b = new Blob([new Uint8Array([1,2])]);\r\n\t    return b.size === 2;\r\n\t  } catch(e) {\r\n\t    return false;\r\n\t  }\r\n\t})();\r\n\t\r\n\t/**\r\n\t * Check if BlobBuilder is supported\r\n\t */\r\n\t\r\n\tvar blobBuilderSupported = BlobBuilder\r\n\t  && BlobBuilder.prototype.append\r\n\t  && BlobBuilder.prototype.getBlob;\r\n\t\r\n\t/**\r\n\t * Helper function that maps ArrayBufferViews to ArrayBuffers\r\n\t * Used by BlobBuilder constructor and old browsers that didn't\r\n\t * support it in the Blob constructor.\r\n\t */\r\n\t\r\n\tfunction mapArrayBufferViews(ary) {\r\n\t  return ary.map(function(chunk) {\r\n\t    if (chunk.buffer instanceof ArrayBuffer) {\r\n\t      var buf = chunk.buffer;\r\n\t\r\n\t      // if this is a subarray, make a copy so we only\r\n\t      // include the subarray region from the underlying buffer\r\n\t      if (chunk.byteLength !== buf.byteLength) {\r\n\t        var copy = new Uint8Array(chunk.byteLength);\r\n\t        copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));\r\n\t        buf = copy.buffer;\r\n\t      }\r\n\t\r\n\t      return buf;\r\n\t    }\r\n\t\r\n\t    return chunk;\r\n\t  });\r\n\t}\r\n\t\r\n\tfunction BlobBuilderConstructor(ary, options) {\r\n\t  options = options || {};\r\n\t\r\n\t  var bb = new BlobBuilder();\r\n\t  mapArrayBufferViews(ary).forEach(function(part) {\r\n\t    bb.append(part);\r\n\t  });\r\n\t\r\n\t  return (options.type) ? bb.getBlob(options.type) : bb.getBlob();\r\n\t};\r\n\t\r\n\tfunction BlobConstructor(ary, options) {\r\n\t  return new Blob(mapArrayBufferViews(ary), options || {});\r\n\t};\r\n\t\r\n\tif (typeof Blob !== 'undefined') {\r\n\t  BlobBuilderConstructor.prototype = Blob.prototype;\r\n\t  BlobConstructor.prototype = Blob.prototype;\r\n\t}\r\n\t\r\n\tmodule.exports = (function() {\r\n\t  if (blobSupported) {\r\n\t    return blobSupportsArrayBufferView ? Blob : BlobConstructor;\r\n\t  } else if (blobBuilderSupported) {\r\n\t    return BlobBuilderConstructor;\r\n\t  } else {\r\n\t    return undefined;\r\n\t  }\r\n\t})();\r\n\n\n/***/ }),\n/* 26 */\n/***/ (function(module, exports) {\n\n\t/**\r\n\t * Compiles a querystring\r\n\t * Returns string representation of the object\r\n\t *\r\n\t * @param {Object}\r\n\t * @api private\r\n\t */\r\n\t\r\n\texports.encode = function (obj) {\r\n\t  var str = '';\r\n\t\r\n\t  for (var i in obj) {\r\n\t    if (obj.hasOwnProperty(i)) {\r\n\t      if (str.length) str += '&';\r\n\t      str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\r\n\t    }\r\n\t  }\r\n\t\r\n\t  return str;\r\n\t};\r\n\t\r\n\t/**\r\n\t * Parses a simple querystring into an object\r\n\t *\r\n\t * @param {String} qs\r\n\t * @api private\r\n\t */\r\n\t\r\n\texports.decode = function(qs){\r\n\t  var qry = {};\r\n\t  var pairs = qs.split('&');\r\n\t  for (var i = 0, l = pairs.length; i < l; i++) {\r\n\t    var pair = pairs[i].split('=');\r\n\t    qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\r\n\t  }\r\n\t  return qry;\r\n\t};\r\n\n\n/***/ }),\n/* 27 */\n/***/ (function(module, exports) {\n\n\t\n\tmodule.exports = function(a, b){\n\t  var fn = function(){};\n\t  fn.prototype = b.prototype;\n\t  a.prototype = new fn;\n\t  a.prototype.constructor = a;\n\t};\n\n/***/ }),\n/* 28 */\n/***/ (function(module, exports) {\n\n\t'use strict';\n\t\n\tvar alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('')\n\t  , length = 64\n\t  , map = {}\n\t  , seed = 0\n\t  , i = 0\n\t  , prev;\n\t\n\t/**\n\t * Return a string representing the specified number.\n\t *\n\t * @param {Number} num The number to convert.\n\t * @returns {String} The string representation of the number.\n\t * @api public\n\t */\n\tfunction encode(num) {\n\t  var encoded = '';\n\t\n\t  do {\n\t    encoded = alphabet[num % length] + encoded;\n\t    num = Math.floor(num / length);\n\t  } while (num > 0);\n\t\n\t  return encoded;\n\t}\n\t\n\t/**\n\t * Return the integer value specified by the given string.\n\t *\n\t * @param {String} str The string to convert.\n\t * @returns {Number} The integer value represented by the string.\n\t * @api public\n\t */\n\tfunction decode(str) {\n\t  var decoded = 0;\n\t\n\t  for (i = 0; i < str.length; i++) {\n\t    decoded = decoded * length + map[str.charAt(i)];\n\t  }\n\t\n\t  return decoded;\n\t}\n\t\n\t/**\n\t * Yeast: A tiny growing id generator.\n\t *\n\t * @returns {String} A unique id.\n\t * @api public\n\t */\n\tfunction yeast() {\n\t  var now = encode(+new Date());\n\t\n\t  if (now !== prev) return seed = 0, prev = now;\n\t  return now +'.'+ encode(seed++);\n\t}\n\t\n\t//\n\t// Map each character to its index.\n\t//\n\tfor (; i < length; i++) map[alphabet[i]] = i;\n\t\n\t//\n\t// Expose the `yeast`, `encode` and `decode` functions.\n\t//\n\tyeast.encode = encode;\n\tyeast.decode = decode;\n\tmodule.exports = yeast;\n\n\n/***/ }),\n/* 29 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/* WEBPACK VAR INJECTION */(function(global) {/**\n\t * Module requirements.\n\t */\n\t\n\tvar Polling = __webpack_require__(16);\n\tvar inherit = __webpack_require__(27);\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = JSONPPolling;\n\t\n\t/**\n\t * Cached regular expressions.\n\t */\n\t\n\tvar rNewline = /\\n/g;\n\tvar rEscapedNewline = /\\\\n/g;\n\t\n\t/**\n\t * Global JSONP callbacks.\n\t */\n\t\n\tvar callbacks;\n\t\n\t/**\n\t * Noop.\n\t */\n\t\n\tfunction empty () { }\n\t\n\t/**\n\t * Until https://github.com/tc39/proposal-global is shipped.\n\t */\n\tfunction glob () {\n\t  return typeof self !== 'undefined' ? self\n\t      : typeof window !== 'undefined' ? window\n\t      : typeof global !== 'undefined' ? global : {};\n\t}\n\t\n\t/**\n\t * JSONP Polling constructor.\n\t *\n\t * @param {Object} opts.\n\t * @api public\n\t */\n\t\n\tfunction JSONPPolling (opts) {\n\t  Polling.call(this, opts);\n\t\n\t  this.query = this.query || {};\n\t\n\t  // define global callbacks array if not present\n\t  // we do this here (lazily) to avoid unneeded global pollution\n\t  if (!callbacks) {\n\t    // we need to consider multiple engines in the same page\n\t    var global = glob();\n\t    callbacks = global.___eio = (global.___eio || []);\n\t  }\n\t\n\t  // callback identifier\n\t  this.index = callbacks.length;\n\t\n\t  // add callback to jsonp global\n\t  var self = this;\n\t  callbacks.push(function (msg) {\n\t    self.onData(msg);\n\t  });\n\t\n\t  // append to query string\n\t  this.query.j = this.index;\n\t\n\t  // prevent spurious errors from being emitted when the window is unloaded\n\t  if (typeof addEventListener === 'function') {\n\t    addEventListener('beforeunload', function () {\n\t      if (self.script) self.script.onerror = empty;\n\t    }, false);\n\t  }\n\t}\n\t\n\t/**\n\t * Inherits from Polling.\n\t */\n\t\n\tinherit(JSONPPolling, Polling);\n\t\n\t/*\n\t * JSONP only supports binary as base64 encoded strings\n\t */\n\t\n\tJSONPPolling.prototype.supportsBinary = false;\n\t\n\t/**\n\t * Closes the socket.\n\t *\n\t * @api private\n\t */\n\t\n\tJSONPPolling.prototype.doClose = function () {\n\t  if (this.script) {\n\t    this.script.parentNode.removeChild(this.script);\n\t    this.script = null;\n\t  }\n\t\n\t  if (this.form) {\n\t    this.form.parentNode.removeChild(this.form);\n\t    this.form = null;\n\t    this.iframe = null;\n\t  }\n\t\n\t  Polling.prototype.doClose.call(this);\n\t};\n\t\n\t/**\n\t * Starts a poll cycle.\n\t *\n\t * @api private\n\t */\n\t\n\tJSONPPolling.prototype.doPoll = function () {\n\t  var self = this;\n\t  var script = document.createElement('script');\n\t\n\t  if (this.script) {\n\t    this.script.parentNode.removeChild(this.script);\n\t    this.script = null;\n\t  }\n\t\n\t  script.async = true;\n\t  script.src = this.uri();\n\t  script.onerror = function (e) {\n\t    self.onError('jsonp poll error', e);\n\t  };\n\t\n\t  var insertAt = document.getElementsByTagName('script')[0];\n\t  if (insertAt) {\n\t    insertAt.parentNode.insertBefore(script, insertAt);\n\t  } else {\n\t    (document.head || document.body).appendChild(script);\n\t  }\n\t  this.script = script;\n\t\n\t  var isUAgecko = 'undefined' !== typeof navigator && /gecko/i.test(navigator.userAgent);\n\t\n\t  if (isUAgecko) {\n\t    setTimeout(function () {\n\t      var iframe = document.createElement('iframe');\n\t      document.body.appendChild(iframe);\n\t      document.body.removeChild(iframe);\n\t    }, 100);\n\t  }\n\t};\n\t\n\t/**\n\t * Writes with a hidden iframe.\n\t *\n\t * @param {String} data to send\n\t * @param {Function} called upon flush.\n\t * @api private\n\t */\n\t\n\tJSONPPolling.prototype.doWrite = function (data, fn) {\n\t  var self = this;\n\t\n\t  if (!this.form) {\n\t    var form = document.createElement('form');\n\t    var area = document.createElement('textarea');\n\t    var id = this.iframeId = 'eio_iframe_' + this.index;\n\t    var iframe;\n\t\n\t    form.className = 'socketio';\n\t    form.style.position = 'absolute';\n\t    form.style.top = '-1000px';\n\t    form.style.left = '-1000px';\n\t    form.target = id;\n\t    form.method = 'POST';\n\t    form.setAttribute('accept-charset', 'utf-8');\n\t    area.name = 'd';\n\t    form.appendChild(area);\n\t    document.body.appendChild(form);\n\t\n\t    this.form = form;\n\t    this.area = area;\n\t  }\n\t\n\t  this.form.action = this.uri();\n\t\n\t  function complete () {\n\t    initIframe();\n\t    fn();\n\t  }\n\t\n\t  function initIframe () {\n\t    if (self.iframe) {\n\t      try {\n\t        self.form.removeChild(self.iframe);\n\t      } catch (e) {\n\t        self.onError('jsonp polling iframe removal error', e);\n\t      }\n\t    }\n\t\n\t    try {\n\t      // ie6 dynamic iframes with target=\"\" support (thanks Chris Lambacher)\n\t      var html = '<iframe src=\"javascript:0\" name=\"' + self.iframeId + '\">';\n\t      iframe = document.createElement(html);\n\t    } catch (e) {\n\t      iframe = document.createElement('iframe');\n\t      iframe.name = self.iframeId;\n\t      iframe.src = 'javascript:0';\n\t    }\n\t\n\t    iframe.id = self.iframeId;\n\t\n\t    self.form.appendChild(iframe);\n\t    self.iframe = iframe;\n\t  }\n\t\n\t  initIframe();\n\t\n\t  // escape \\n to prevent it from being converted into \\r\\n by some UAs\n\t  // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side\n\t  data = data.replace(rEscapedNewline, '\\\\\\n');\n\t  this.area.value = data.replace(rNewline, '\\\\n');\n\t\n\t  try {\n\t    this.form.submit();\n\t  } catch (e) {}\n\t\n\t  if (this.iframe.attachEvent) {\n\t    this.iframe.onreadystatechange = function () {\n\t      if (self.iframe.readyState === 'complete') {\n\t        complete();\n\t      }\n\t    };\n\t  } else {\n\t    this.iframe.onload = complete;\n\t  }\n\t};\n\t\n\t/* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }())))\n\n/***/ }),\n/* 30 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar Transport = __webpack_require__(17);\n\tvar parser = __webpack_require__(18);\n\tvar parseqs = __webpack_require__(26);\n\tvar inherit = __webpack_require__(27);\n\tvar yeast = __webpack_require__(28);\n\tvar debug = __webpack_require__(3)('engine.io-client:websocket');\n\tvar BrowserWebSocket, NodeWebSocket;\n\tif (typeof self === 'undefined') {\n\t  try {\n\t    NodeWebSocket = __webpack_require__(31);\n\t  } catch (e) { }\n\t} else {\n\t  BrowserWebSocket = self.WebSocket || self.MozWebSocket;\n\t}\n\t\n\t/**\n\t * Get either the `WebSocket` or `MozWebSocket` globals\n\t * in the browser or try to resolve WebSocket-compatible\n\t * interface exposed by `ws` for Node-like environment.\n\t */\n\t\n\tvar WebSocket = BrowserWebSocket || NodeWebSocket;\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = WS;\n\t\n\t/**\n\t * WebSocket transport constructor.\n\t *\n\t * @api {Object} connection options\n\t * @api public\n\t */\n\t\n\tfunction WS (opts) {\n\t  var forceBase64 = (opts && opts.forceBase64);\n\t  if (forceBase64) {\n\t    this.supportsBinary = false;\n\t  }\n\t  this.perMessageDeflate = opts.perMessageDeflate;\n\t  this.usingBrowserWebSocket = BrowserWebSocket && !opts.forceNode;\n\t  this.protocols = opts.protocols;\n\t  if (!this.usingBrowserWebSocket) {\n\t    WebSocket = NodeWebSocket;\n\t  }\n\t  Transport.call(this, opts);\n\t}\n\t\n\t/**\n\t * Inherits from Transport.\n\t */\n\t\n\tinherit(WS, Transport);\n\t\n\t/**\n\t * Transport name.\n\t *\n\t * @api public\n\t */\n\t\n\tWS.prototype.name = 'websocket';\n\t\n\t/*\n\t * WebSockets support binary\n\t */\n\t\n\tWS.prototype.supportsBinary = true;\n\t\n\t/**\n\t * Opens socket.\n\t *\n\t * @api private\n\t */\n\t\n\tWS.prototype.doOpen = function () {\n\t  if (!this.check()) {\n\t    // let probe timeout\n\t    return;\n\t  }\n\t\n\t  var uri = this.uri();\n\t  var protocols = this.protocols;\n\t  var opts = {\n\t    agent: this.agent,\n\t    perMessageDeflate: this.perMessageDeflate\n\t  };\n\t\n\t  // SSL options for Node.js client\n\t  opts.pfx = this.pfx;\n\t  opts.key = this.key;\n\t  opts.passphrase = this.passphrase;\n\t  opts.cert = this.cert;\n\t  opts.ca = this.ca;\n\t  opts.ciphers = this.ciphers;\n\t  opts.rejectUnauthorized = this.rejectUnauthorized;\n\t  if (this.extraHeaders) {\n\t    opts.headers = this.extraHeaders;\n\t  }\n\t  if (this.localAddress) {\n\t    opts.localAddress = this.localAddress;\n\t  }\n\t\n\t  try {\n\t    this.ws = this.usingBrowserWebSocket && !this.isReactNative ? (protocols ? new WebSocket(uri, protocols) : new WebSocket(uri)) : new WebSocket(uri, protocols, opts);\n\t  } catch (err) {\n\t    return this.emit('error', err);\n\t  }\n\t\n\t  if (this.ws.binaryType === undefined) {\n\t    this.supportsBinary = false;\n\t  }\n\t\n\t  if (this.ws.supports && this.ws.supports.binary) {\n\t    this.supportsBinary = true;\n\t    this.ws.binaryType = 'nodebuffer';\n\t  } else {\n\t    this.ws.binaryType = 'arraybuffer';\n\t  }\n\t\n\t  this.addEventListeners();\n\t};\n\t\n\t/**\n\t * Adds event listeners to the socket\n\t *\n\t * @api private\n\t */\n\t\n\tWS.prototype.addEventListeners = function () {\n\t  var self = this;\n\t\n\t  this.ws.onopen = function () {\n\t    self.onOpen();\n\t  };\n\t  this.ws.onclose = function () {\n\t    self.onClose();\n\t  };\n\t  this.ws.onmessage = function (ev) {\n\t    self.onData(ev.data);\n\t  };\n\t  this.ws.onerror = function (e) {\n\t    self.onError('websocket error', e);\n\t  };\n\t};\n\t\n\t/**\n\t * Writes data to socket.\n\t *\n\t * @param {Array} array of packets.\n\t * @api private\n\t */\n\t\n\tWS.prototype.write = function (packets) {\n\t  var self = this;\n\t  this.writable = false;\n\t\n\t  // encodePacket efficient as it uses WS framing\n\t  // no need for encodePayload\n\t  var total = packets.length;\n\t  for (var i = 0, l = total; i < l; i++) {\n\t    (function (packet) {\n\t      parser.encodePacket(packet, self.supportsBinary, function (data) {\n\t        if (!self.usingBrowserWebSocket) {\n\t          // always create a new object (GH-437)\n\t          var opts = {};\n\t          if (packet.options) {\n\t            opts.compress = packet.options.compress;\n\t          }\n\t\n\t          if (self.perMessageDeflate) {\n\t            var len = 'string' === typeof data ? Buffer.byteLength(data) : data.length;\n\t            if (len < self.perMessageDeflate.threshold) {\n\t              opts.compress = false;\n\t            }\n\t          }\n\t        }\n\t\n\t        // Sometimes the websocket has already been closed but the browser didn't\n\t        // have a chance of informing us about it yet, in that case send will\n\t        // throw an error\n\t        try {\n\t          if (self.usingBrowserWebSocket) {\n\t            // TypeError is thrown when passing the second argument on Safari\n\t            self.ws.send(data);\n\t          } else {\n\t            self.ws.send(data, opts);\n\t          }\n\t        } catch (e) {\n\t\n\t        }\n\t\n\t        --total || done();\n\t      });\n\t    })(packets[i]);\n\t  }\n\t\n\t  function done () {\n\t    self.emit('flush');\n\t\n\t    // fake drain\n\t    // defer to next tick to allow Socket to clear writeBuffer\n\t    setTimeout(function () {\n\t      self.writable = true;\n\t      self.emit('drain');\n\t    }, 0);\n\t  }\n\t};\n\t\n\t/**\n\t * Called upon close\n\t *\n\t * @api private\n\t */\n\t\n\tWS.prototype.onClose = function () {\n\t  Transport.prototype.onClose.call(this);\n\t};\n\t\n\t/**\n\t * Closes socket.\n\t *\n\t * @api private\n\t */\n\t\n\tWS.prototype.doClose = function () {\n\t  if (typeof this.ws !== 'undefined') {\n\t    this.ws.close();\n\t  }\n\t};\n\t\n\t/**\n\t * Generates uri for connection.\n\t *\n\t * @api private\n\t */\n\t\n\tWS.prototype.uri = function () {\n\t  var query = this.query || {};\n\t  var schema = this.secure ? 'wss' : 'ws';\n\t  var port = '';\n\t\n\t  // avoid port if default for schema\n\t  if (this.port && (('wss' === schema && Number(this.port) !== 443) ||\n\t    ('ws' === schema && Number(this.port) !== 80))) {\n\t    port = ':' + this.port;\n\t  }\n\t\n\t  // append timestamp to URI\n\t  if (this.timestampRequests) {\n\t    query[this.timestampParam] = yeast();\n\t  }\n\t\n\t  // communicate binary support capabilities\n\t  if (!this.supportsBinary) {\n\t    query.b64 = 1;\n\t  }\n\t\n\t  query = parseqs.encode(query);\n\t\n\t  // prepend ? to query\n\t  if (query.length) {\n\t    query = '?' + query;\n\t  }\n\t\n\t  var ipv6 = this.hostname.indexOf(':') !== -1;\n\t  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;\n\t};\n\t\n\t/**\n\t * Feature detection for WebSocket.\n\t *\n\t * @return {Boolean} whether this transport is available.\n\t * @api public\n\t */\n\t\n\tWS.prototype.check = function () {\n\t  return !!WebSocket && !('__initialize' in WebSocket && this.name === WS.prototype.name);\n\t};\n\n\n/***/ }),\n/* 31 */\n/***/ (function(module, exports) {\n\n\t/* (ignored) */\n\n/***/ }),\n/* 32 */\n/***/ (function(module, exports) {\n\n\t\n\tvar indexOf = [].indexOf;\n\t\n\tmodule.exports = function(arr, obj){\n\t  if (indexOf) return arr.indexOf(obj);\n\t  for (var i = 0; i < arr.length; ++i) {\n\t    if (arr[i] === obj) return i;\n\t  }\n\t  return -1;\n\t};\n\n/***/ }),\n/* 33 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\t\n\t/**\n\t * Module dependencies.\n\t */\n\t\n\tvar parser = __webpack_require__(4);\n\tvar Emitter = __webpack_require__(5);\n\tvar toArray = __webpack_require__(34);\n\tvar on = __webpack_require__(35);\n\tvar bind = __webpack_require__(36);\n\tvar debug = __webpack_require__(3)('socket.io-client:socket');\n\tvar parseqs = __webpack_require__(26);\n\tvar hasBin = __webpack_require__(20);\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = exports = Socket;\n\t\n\t/**\n\t * Internal events (blacklisted).\n\t * These events can't be emitted by the user.\n\t *\n\t * @api private\n\t */\n\t\n\tvar events = {\n\t  connect: 1,\n\t  connect_error: 1,\n\t  connect_timeout: 1,\n\t  connecting: 1,\n\t  disconnect: 1,\n\t  error: 1,\n\t  reconnect: 1,\n\t  reconnect_attempt: 1,\n\t  reconnect_failed: 1,\n\t  reconnect_error: 1,\n\t  reconnecting: 1,\n\t  ping: 1,\n\t  pong: 1\n\t};\n\t\n\t/**\n\t * Shortcut to `Emitter#emit`.\n\t */\n\t\n\tvar emit = Emitter.prototype.emit;\n\t\n\t/**\n\t * `Socket` constructor.\n\t *\n\t * @api public\n\t */\n\t\n\tfunction Socket(io, nsp, opts) {\n\t  this.io = io;\n\t  this.nsp = nsp;\n\t  this.json = this; // compat\n\t  this.ids = 0;\n\t  this.acks = {};\n\t  this.receiveBuffer = [];\n\t  this.sendBuffer = [];\n\t  this.connected = false;\n\t  this.disconnected = true;\n\t  this.flags = {};\n\t  if (opts && opts.query) {\n\t    this.query = opts.query;\n\t  }\n\t  if (this.io.autoConnect) this.open();\n\t}\n\t\n\t/**\n\t * Mix in `Emitter`.\n\t */\n\t\n\tEmitter(Socket.prototype);\n\t\n\t/**\n\t * Subscribe to open, close and packet events\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.subEvents = function () {\n\t  if (this.subs) return;\n\t\n\t  var io = this.io;\n\t  this.subs = [on(io, 'open', bind(this, 'onopen')), on(io, 'packet', bind(this, 'onpacket')), on(io, 'close', bind(this, 'onclose'))];\n\t};\n\t\n\t/**\n\t * \"Opens\" the socket.\n\t *\n\t * @api public\n\t */\n\t\n\tSocket.prototype.open = Socket.prototype.connect = function () {\n\t  if (this.connected) return this;\n\t\n\t  this.subEvents();\n\t  this.io.open(); // ensure open\n\t  if ('open' === this.io.readyState) this.onopen();\n\t  this.emit('connecting');\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sends a `message` event.\n\t *\n\t * @return {Socket} self\n\t * @api public\n\t */\n\t\n\tSocket.prototype.send = function () {\n\t  var args = toArray(arguments);\n\t  args.unshift('message');\n\t  this.emit.apply(this, args);\n\t  return this;\n\t};\n\t\n\t/**\n\t * Override `emit`.\n\t * If the event is in `events`, it's emitted normally.\n\t *\n\t * @param {String} event name\n\t * @return {Socket} self\n\t * @api public\n\t */\n\t\n\tSocket.prototype.emit = function (ev) {\n\t  if (events.hasOwnProperty(ev)) {\n\t    emit.apply(this, arguments);\n\t    return this;\n\t  }\n\t\n\t  var args = toArray(arguments);\n\t  var packet = {\n\t    type: (this.flags.binary !== undefined ? this.flags.binary : hasBin(args)) ? parser.BINARY_EVENT : parser.EVENT,\n\t    data: args\n\t  };\n\t\n\t  packet.options = {};\n\t  packet.options.compress = !this.flags || false !== this.flags.compress;\n\t\n\t  // event ack callback\n\t  if ('function' === typeof args[args.length - 1]) {\n\t\n\t    this.acks[this.ids] = args.pop();\n\t    packet.id = this.ids++;\n\t  }\n\t\n\t  if (this.connected) {\n\t    this.packet(packet);\n\t  } else {\n\t    this.sendBuffer.push(packet);\n\t  }\n\t\n\t  this.flags = {};\n\t\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sends a packet.\n\t *\n\t * @param {Object} packet\n\t * @api private\n\t */\n\t\n\tSocket.prototype.packet = function (packet) {\n\t  packet.nsp = this.nsp;\n\t  this.io.packet(packet);\n\t};\n\t\n\t/**\n\t * Called upon engine `open`.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onopen = function () {\n\t\n\t  // write connect packet if necessary\n\t  if ('/' !== this.nsp) {\n\t    if (this.query) {\n\t      var query = _typeof(this.query) === 'object' ? parseqs.encode(this.query) : this.query;\n\t\n\t      this.packet({ type: parser.CONNECT, query: query });\n\t    } else {\n\t      this.packet({ type: parser.CONNECT });\n\t    }\n\t  }\n\t};\n\t\n\t/**\n\t * Called upon engine `close`.\n\t *\n\t * @param {String} reason\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onclose = function (reason) {\n\t\n\t  this.connected = false;\n\t  this.disconnected = true;\n\t  delete this.id;\n\t  this.emit('disconnect', reason);\n\t};\n\t\n\t/**\n\t * Called with socket packet.\n\t *\n\t * @param {Object} packet\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onpacket = function (packet) {\n\t  var sameNamespace = packet.nsp === this.nsp;\n\t  var rootNamespaceError = packet.type === parser.ERROR && packet.nsp === '/';\n\t\n\t  if (!sameNamespace && !rootNamespaceError) return;\n\t\n\t  switch (packet.type) {\n\t    case parser.CONNECT:\n\t      this.onconnect();\n\t      break;\n\t\n\t    case parser.EVENT:\n\t      this.onevent(packet);\n\t      break;\n\t\n\t    case parser.BINARY_EVENT:\n\t      this.onevent(packet);\n\t      break;\n\t\n\t    case parser.ACK:\n\t      this.onack(packet);\n\t      break;\n\t\n\t    case parser.BINARY_ACK:\n\t      this.onack(packet);\n\t      break;\n\t\n\t    case parser.DISCONNECT:\n\t      this.ondisconnect();\n\t      break;\n\t\n\t    case parser.ERROR:\n\t      this.emit('error', packet.data);\n\t      break;\n\t  }\n\t};\n\t\n\t/**\n\t * Called upon a server event.\n\t *\n\t * @param {Object} packet\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onevent = function (packet) {\n\t  var args = packet.data || [];\n\t\n\t  if (null != packet.id) {\n\t\n\t    args.push(this.ack(packet.id));\n\t  }\n\t\n\t  if (this.connected) {\n\t    emit.apply(this, args);\n\t  } else {\n\t    this.receiveBuffer.push(args);\n\t  }\n\t};\n\t\n\t/**\n\t * Produces an ack callback to emit with an event.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.ack = function (id) {\n\t  var self = this;\n\t  var sent = false;\n\t  return function () {\n\t    // prevent double callbacks\n\t    if (sent) return;\n\t    sent = true;\n\t    var args = toArray(arguments);\n\t\n\t    self.packet({\n\t      type: hasBin(args) ? parser.BINARY_ACK : parser.ACK,\n\t      id: id,\n\t      data: args\n\t    });\n\t  };\n\t};\n\t\n\t/**\n\t * Called upon a server acknowlegement.\n\t *\n\t * @param {Object} packet\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onack = function (packet) {\n\t  var ack = this.acks[packet.id];\n\t  if ('function' === typeof ack) {\n\t\n\t    ack.apply(this, packet.data);\n\t    delete this.acks[packet.id];\n\t  } else {}\n\t};\n\t\n\t/**\n\t * Called upon server connect.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.onconnect = function () {\n\t  this.connected = true;\n\t  this.disconnected = false;\n\t  this.emit('connect');\n\t  this.emitBuffered();\n\t};\n\t\n\t/**\n\t * Emit buffered events (received and emitted).\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.emitBuffered = function () {\n\t  var i;\n\t  for (i = 0; i < this.receiveBuffer.length; i++) {\n\t    emit.apply(this, this.receiveBuffer[i]);\n\t  }\n\t  this.receiveBuffer = [];\n\t\n\t  for (i = 0; i < this.sendBuffer.length; i++) {\n\t    this.packet(this.sendBuffer[i]);\n\t  }\n\t  this.sendBuffer = [];\n\t};\n\t\n\t/**\n\t * Called upon server disconnect.\n\t *\n\t * @api private\n\t */\n\t\n\tSocket.prototype.ondisconnect = function () {\n\t\n\t  this.destroy();\n\t  this.onclose('io server disconnect');\n\t};\n\t\n\t/**\n\t * Called upon forced client/server side disconnections,\n\t * this method ensures the manager stops tracking us and\n\t * that reconnections don't get triggered for this.\n\t *\n\t * @api private.\n\t */\n\t\n\tSocket.prototype.destroy = function () {\n\t  if (this.subs) {\n\t    // clean subscriptions to avoid reconnections\n\t    for (var i = 0; i < this.subs.length; i++) {\n\t      this.subs[i].destroy();\n\t    }\n\t    this.subs = null;\n\t  }\n\t\n\t  this.io.destroy(this);\n\t};\n\t\n\t/**\n\t * Disconnects the socket manually.\n\t *\n\t * @return {Socket} self\n\t * @api public\n\t */\n\t\n\tSocket.prototype.close = Socket.prototype.disconnect = function () {\n\t  if (this.connected) {\n\t\n\t    this.packet({ type: parser.DISCONNECT });\n\t  }\n\t\n\t  // remove socket from pool\n\t  this.destroy();\n\t\n\t  if (this.connected) {\n\t    // fire events\n\t    this.onclose('io client disconnect');\n\t  }\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sets the compress flag.\n\t *\n\t * @param {Boolean} if `true`, compresses the sending data\n\t * @return {Socket} self\n\t * @api public\n\t */\n\t\n\tSocket.prototype.compress = function (compress) {\n\t  this.flags.compress = compress;\n\t  return this;\n\t};\n\t\n\t/**\n\t * Sets the binary flag\n\t *\n\t * @param {Boolean} whether the emitted data contains binary\n\t * @return {Socket} self\n\t * @api public\n\t */\n\t\n\tSocket.prototype.binary = function (binary) {\n\t  this.flags.binary = binary;\n\t  return this;\n\t};\n\n/***/ }),\n/* 34 */\n/***/ (function(module, exports) {\n\n\tmodule.exports = toArray\n\t\n\tfunction toArray(list, index) {\n\t    var array = []\n\t\n\t    index = index || 0\n\t\n\t    for (var i = index || 0; i < list.length; i++) {\n\t        array[i - index] = list[i]\n\t    }\n\t\n\t    return array\n\t}\n\n\n/***/ }),\n/* 35 */\n/***/ (function(module, exports) {\n\n\t\"use strict\";\n\t\n\t/**\n\t * Module exports.\n\t */\n\t\n\tmodule.exports = on;\n\t\n\t/**\n\t * Helper for subscriptions.\n\t *\n\t * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`\n\t * @param {String} event name\n\t * @param {Function} callback\n\t * @api public\n\t */\n\t\n\tfunction on(obj, ev, fn) {\n\t  obj.on(ev, fn);\n\t  return {\n\t    destroy: function destroy() {\n\t      obj.removeListener(ev, fn);\n\t    }\n\t  };\n\t}\n\n/***/ }),\n/* 36 */\n/***/ (function(module, exports) {\n\n\t/**\n\t * Slice reference.\n\t */\n\t\n\tvar slice = [].slice;\n\t\n\t/**\n\t * Bind `obj` to `fn`.\n\t *\n\t * @param {Object} obj\n\t * @param {Function|String} fn or string\n\t * @return {Function}\n\t * @api public\n\t */\n\t\n\tmodule.exports = function(obj, fn){\n\t  if ('string' == typeof fn) fn = obj[fn];\n\t  if ('function' != typeof fn) throw new Error('bind() requires a function');\n\t  var args = slice.call(arguments, 2);\n\t  return function(){\n\t    return fn.apply(obj, args.concat(slice.call(arguments)));\n\t  }\n\t};\n\n\n/***/ }),\n/* 37 */\n/***/ (function(module, exports) {\n\n\t\n\t/**\n\t * Expose `Backoff`.\n\t */\n\t\n\tmodule.exports = Backoff;\n\t\n\t/**\n\t * Initialize backoff timer with `opts`.\n\t *\n\t * - `min` initial timeout in milliseconds [100]\n\t * - `max` max timeout [10000]\n\t * - `jitter` [0]\n\t * - `factor` [2]\n\t *\n\t * @param {Object} opts\n\t * @api public\n\t */\n\t\n\tfunction Backoff(opts) {\n\t  opts = opts || {};\n\t  this.ms = opts.min || 100;\n\t  this.max = opts.max || 10000;\n\t  this.factor = opts.factor || 2;\n\t  this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n\t  this.attempts = 0;\n\t}\n\t\n\t/**\n\t * Return the backoff duration.\n\t *\n\t * @return {Number}\n\t * @api public\n\t */\n\t\n\tBackoff.prototype.duration = function(){\n\t  var ms = this.ms * Math.pow(this.factor, this.attempts++);\n\t  if (this.jitter) {\n\t    var rand =  Math.random();\n\t    var deviation = Math.floor(rand * this.jitter * ms);\n\t    ms = (Math.floor(rand * 10) & 1) == 0  ? ms - deviation : ms + deviation;\n\t  }\n\t  return Math.min(ms, this.max) | 0;\n\t};\n\t\n\t/**\n\t * Reset the number of attempts.\n\t *\n\t * @api public\n\t */\n\t\n\tBackoff.prototype.reset = function(){\n\t  this.attempts = 0;\n\t};\n\t\n\t/**\n\t * Set the minimum duration\n\t *\n\t * @api public\n\t */\n\t\n\tBackoff.prototype.setMin = function(min){\n\t  this.ms = min;\n\t};\n\t\n\t/**\n\t * Set the maximum duration\n\t *\n\t * @api public\n\t */\n\t\n\tBackoff.prototype.setMax = function(max){\n\t  this.max = max;\n\t};\n\t\n\t/**\n\t * Set the jitter\n\t *\n\t * @api public\n\t */\n\t\n\tBackoff.prototype.setJitter = function(jitter){\n\t  this.jitter = jitter;\n\t};\n\t\n\n\n/***/ })\n/******/ ])\n});\n;\n\n\n// WEBPACK FOOTER //\n// socket.io.slim.js"," \t// The module cache\n \tvar installedModules = {};\n\n \t// The require function\n \tfunction __webpack_require__(moduleId) {\n\n \t\t// Check if module is in cache\n \t\tif(installedModules[moduleId])\n \t\t\treturn installedModules[moduleId].exports;\n\n \t\t// Create a new module (and put it into the cache)\n \t\tvar module = installedModules[moduleId] = {\n \t\t\texports: {},\n \t\t\tid: moduleId,\n \t\t\tloaded: false\n \t\t};\n\n \t\t// Execute the module function\n \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n \t\t// Flag the module as loaded\n \t\tmodule.loaded = true;\n\n \t\t// Return the exports of the module\n \t\treturn module.exports;\n \t}\n\n\n \t// expose the modules object (__webpack_modules__)\n \t__webpack_require__.m = modules;\n\n \t// expose the module cache\n \t__webpack_require__.c = installedModules;\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(0);\n\n\n\n// WEBPACK FOOTER //\n// webpack/bootstrap fd5df950d9b7f61a8541","\n/**\n * Module dependencies.\n */\n\nvar url = require('./url');\nvar parser = require('socket.io-parser');\nvar Manager = require('./manager');\nvar debug = require('debug')('socket.io-client');\n\n/**\n * Module exports.\n */\n\nmodule.exports = exports = lookup;\n\n/**\n * Managers cache.\n */\n\nvar cache = exports.managers = {};\n\n/**\n * Looks up an existing `Manager` for multiplexing.\n * If the user summons:\n *\n *   `io('http://localhost/a');`\n *   `io('http://localhost/b');`\n *\n * We reuse the existing instance based on same scheme/port/host,\n * and we initialize sockets for each namespace.\n *\n * @api public\n */\n\nfunction lookup (uri, opts) {\n  if (typeof uri === 'object') {\n    opts = uri;\n    uri = undefined;\n  }\n\n  opts = opts || {};\n\n  var parsed = url(uri);\n  var source = parsed.source;\n  var id = parsed.id;\n  var path = parsed.path;\n  var sameNamespace = cache[id] && path in cache[id].nsps;\n  var newConnection = opts.forceNew || opts['force new connection'] ||\n                      false === opts.multiplex || sameNamespace;\n\n  var io;\n\n  if (newConnection) {\n\n    io = Manager(source, opts);\n  } else {\n    if (!cache[id]) {\n\n      cache[id] = Manager(source, opts);\n    }\n    io = cache[id];\n  }\n  if (parsed.query && !opts.query) {\n    opts.query = parsed.query;\n  }\n  return io.socket(parsed.path, opts);\n}\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nexports.protocol = parser.protocol;\n\n/**\n * `connect`.\n *\n * @param {String} uri\n * @api public\n */\n\nexports.connect = lookup;\n\n/**\n * Expose constructors for standalone build.\n *\n * @api public\n */\n\nexports.Manager = require('./manager');\nexports.Socket = require('./socket');\n\n\n\n// WEBPACK FOOTER //\n// ./lib/index.js","\n/**\n * Module dependencies.\n */\n\nvar parseuri = require('parseuri');\nvar debug = require('debug')('socket.io-client:url');\n\n/**\n * Module exports.\n */\n\nmodule.exports = url;\n\n/**\n * URL parser.\n *\n * @param {String} url\n * @param {Object} An object meant to mimic window.location.\n *                 Defaults to window.location.\n * @api public\n */\n\nfunction url (uri, loc) {\n  var obj = uri;\n\n  // default to window.location\n  loc = loc || (typeof location !== 'undefined' && location);\n  if (null == uri) uri = loc.protocol + '//' + loc.host;\n\n  // relative path support\n  if ('string' === typeof uri) {\n    if ('/' === uri.charAt(0)) {\n      if ('/' === uri.charAt(1)) {\n        uri = loc.protocol + uri;\n      } else {\n        uri = loc.host + uri;\n      }\n    }\n\n    if (!/^(https?|wss?):\\/\\//.test(uri)) {\n\n      if ('undefined' !== typeof loc) {\n        uri = loc.protocol + '//' + uri;\n      } else {\n        uri = 'https://' + uri;\n      }\n    }\n\n    // parse\n\n    obj = parseuri(uri);\n  }\n\n  // make sure we treat `localhost:80` and `localhost` equally\n  if (!obj.port) {\n    if (/^(http|ws)$/.test(obj.protocol)) {\n      obj.port = '80';\n    } else if (/^(http|ws)s$/.test(obj.protocol)) {\n      obj.port = '443';\n    }\n  }\n\n  obj.path = obj.path || '/';\n\n  var ipv6 = obj.host.indexOf(':') !== -1;\n  var host = ipv6 ? '[' + obj.host + ']' : obj.host;\n\n  // define unique id\n  obj.id = obj.protocol + '://' + host + ':' + obj.port;\n  // define href\n  obj.href = obj.protocol + '://' + host + (loc && loc.port === obj.port ? '' : (':' + obj.port));\n\n  return obj;\n}\n\n\n\n// WEBPACK FOOTER //\n// ./lib/url.js","/**\r\n * Parses an URI\r\n *\r\n * @author Steven Levithan <stevenlevithan.com> (MIT license)\r\n * @api private\r\n */\r\n\r\nvar re = /^(?:(?![^:@]+:[^:@\\/]*@)(http|https|ws|wss):\\/\\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\\/?#]*)(?::(\\d*))?)(((\\/(?:[^?#](?![^?#\\/]*\\.[^?#\\/.]+(?:[?#]|$)))*\\/?)?([^?#\\/]*))(?:\\?([^#]*))?(?:#(.*))?)/;\r\n\r\nvar parts = [\r\n    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'\r\n];\r\n\r\nmodule.exports = function parseuri(str) {\r\n    var src = str,\r\n        b = str.indexOf('['),\r\n        e = str.indexOf(']');\r\n\r\n    if (b != -1 && e != -1) {\r\n        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);\r\n    }\r\n\r\n    var m = re.exec(str || ''),\r\n        uri = {},\r\n        i = 14;\r\n\r\n    while (i--) {\r\n        uri[parts[i]] = m[i] || '';\r\n    }\r\n\r\n    if (b != -1 && e != -1) {\r\n        uri.source = src;\r\n        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');\r\n        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');\r\n        uri.ipv6uri = true;\r\n    }\r\n\r\n    return uri;\r\n};\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/parseuri/index.js\n// module id = 2\n// module chunks = 0","\nmodule.exports = function () { return function () {}; };\n\n\n\n// WEBPACK FOOTER //\n// ./support/noop.js","\n/**\n * Module dependencies.\n */\n\nvar debug = require('debug')('socket.io-parser');\nvar Emitter = require('component-emitter');\nvar binary = require('./binary');\nvar isArray = require('isarray');\nvar isBuf = require('./is-buffer');\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nexports.protocol = 4;\n\n/**\n * Packet types.\n *\n * @api public\n */\n\nexports.types = [\n  'CONNECT',\n  'DISCONNECT',\n  'EVENT',\n  'ACK',\n  'ERROR',\n  'BINARY_EVENT',\n  'BINARY_ACK'\n];\n\n/**\n * Packet type `connect`.\n *\n * @api public\n */\n\nexports.CONNECT = 0;\n\n/**\n * Packet type `disconnect`.\n *\n * @api public\n */\n\nexports.DISCONNECT = 1;\n\n/**\n * Packet type `event`.\n *\n * @api public\n */\n\nexports.EVENT = 2;\n\n/**\n * Packet type `ack`.\n *\n * @api public\n */\n\nexports.ACK = 3;\n\n/**\n * Packet type `error`.\n *\n * @api public\n */\n\nexports.ERROR = 4;\n\n/**\n * Packet type 'binary event'\n *\n * @api public\n */\n\nexports.BINARY_EVENT = 5;\n\n/**\n * Packet type `binary ack`. For acks with binary arguments.\n *\n * @api public\n */\n\nexports.BINARY_ACK = 6;\n\n/**\n * Encoder constructor.\n *\n * @api public\n */\n\nexports.Encoder = Encoder;\n\n/**\n * Decoder constructor.\n *\n * @api public\n */\n\nexports.Decoder = Decoder;\n\n/**\n * A socket.io Encoder instance\n *\n * @api public\n */\n\nfunction Encoder() {}\n\nvar ERROR_PACKET = exports.ERROR + '\"encode error\"';\n\n/**\n * Encode a packet as a single string if non-binary, or as a\n * buffer sequence, depending on packet type.\n *\n * @param {Object} obj - packet object\n * @param {Function} callback - function to handle encodings (likely engine.write)\n * @return Calls callback with Array of encodings\n * @api public\n */\n\nEncoder.prototype.encode = function(obj, callback){\n\n\n  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {\n    encodeAsBinary(obj, callback);\n  } else {\n    var encoding = encodeAsString(obj);\n    callback([encoding]);\n  }\n};\n\n/**\n * Encode packet as string.\n *\n * @param {Object} packet\n * @return {String} encoded\n * @api private\n */\n\nfunction encodeAsString(obj) {\n\n  // first is type\n  var str = '' + obj.type;\n\n  // attachments if we have them\n  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {\n    str += obj.attachments + '-';\n  }\n\n  // if we have a namespace other than `/`\n  // we append it followed by a comma `,`\n  if (obj.nsp && '/' !== obj.nsp) {\n    str += obj.nsp + ',';\n  }\n\n  // immediately followed by the id\n  if (null != obj.id) {\n    str += obj.id;\n  }\n\n  // json data\n  if (null != obj.data) {\n    var payload = tryStringify(obj.data);\n    if (payload !== false) {\n      str += payload;\n    } else {\n      return ERROR_PACKET;\n    }\n  }\n\n\n  return str;\n}\n\nfunction tryStringify(str) {\n  try {\n    return JSON.stringify(str);\n  } catch(e){\n    return false;\n  }\n}\n\n/**\n * Encode packet as 'buffer sequence' by removing blobs, and\n * deconstructing packet into object with placeholders and\n * a list of buffers.\n *\n * @param {Object} packet\n * @return {Buffer} encoded\n * @api private\n */\n\nfunction encodeAsBinary(obj, callback) {\n\n  function writeEncoding(bloblessData) {\n    var deconstruction = binary.deconstructPacket(bloblessData);\n    var pack = encodeAsString(deconstruction.packet);\n    var buffers = deconstruction.buffers;\n\n    buffers.unshift(pack); // add packet info to beginning of data list\n    callback(buffers); // write all the buffers\n  }\n\n  binary.removeBlobs(obj, writeEncoding);\n}\n\n/**\n * A socket.io Decoder instance\n *\n * @return {Object} decoder\n * @api public\n */\n\nfunction Decoder() {\n  this.reconstructor = null;\n}\n\n/**\n * Mix in `Emitter` with Decoder.\n */\n\nEmitter(Decoder.prototype);\n\n/**\n * Decodes an encoded packet string into packet JSON.\n *\n * @param {String} obj - encoded packet\n * @return {Object} packet\n * @api public\n */\n\nDecoder.prototype.add = function(obj) {\n  var packet;\n  if (typeof obj === 'string') {\n    packet = decodeString(obj);\n    if (exports.BINARY_EVENT === packet.type || exports.BINARY_ACK === packet.type) { // binary packet's json\n      this.reconstructor = new BinaryReconstructor(packet);\n\n      // no attachments, labeled binary but no binary data to follow\n      if (this.reconstructor.reconPack.attachments === 0) {\n        this.emit('decoded', packet);\n      }\n    } else { // non-binary full packet\n      this.emit('decoded', packet);\n    }\n  } else if (isBuf(obj) || obj.base64) { // raw binary data\n    if (!this.reconstructor) {\n      throw new Error('got binary data when not reconstructing a packet');\n    } else {\n      packet = this.reconstructor.takeBinaryData(obj);\n      if (packet) { // received final buffer\n        this.reconstructor = null;\n        this.emit('decoded', packet);\n      }\n    }\n  } else {\n    throw new Error('Unknown type: ' + obj);\n  }\n};\n\n/**\n * Decode a packet String (JSON data)\n *\n * @param {String} str\n * @return {Object} packet\n * @api private\n */\n\nfunction decodeString(str) {\n  var i = 0;\n  // look up type\n  var p = {\n    type: Number(str.charAt(0))\n  };\n\n  if (null == exports.types[p.type]) {\n    return error('unknown packet type ' + p.type);\n  }\n\n  // look up attachments if type binary\n  if (exports.BINARY_EVENT === p.type || exports.BINARY_ACK === p.type) {\n    var buf = '';\n    while (str.charAt(++i) !== '-') {\n      buf += str.charAt(i);\n      if (i == str.length) break;\n    }\n    if (buf != Number(buf) || str.charAt(i) !== '-') {\n      throw new Error('Illegal attachments');\n    }\n    p.attachments = Number(buf);\n  }\n\n  // look up namespace (if any)\n  if ('/' === str.charAt(i + 1)) {\n    p.nsp = '';\n    while (++i) {\n      var c = str.charAt(i);\n      if (',' === c) break;\n      p.nsp += c;\n      if (i === str.length) break;\n    }\n  } else {\n    p.nsp = '/';\n  }\n\n  // look up id\n  var next = str.charAt(i + 1);\n  if ('' !== next && Number(next) == next) {\n    p.id = '';\n    while (++i) {\n      var c = str.charAt(i);\n      if (null == c || Number(c) != c) {\n        --i;\n        break;\n      }\n      p.id += str.charAt(i);\n      if (i === str.length) break;\n    }\n    p.id = Number(p.id);\n  }\n\n  // look up json data\n  if (str.charAt(++i)) {\n    var payload = tryParse(str.substr(i));\n    var isPayloadValid = payload !== false && (p.type === exports.ERROR || isArray(payload));\n    if (isPayloadValid) {\n      p.data = payload;\n    } else {\n      return error('invalid payload');\n    }\n  }\n\n\n  return p;\n}\n\nfunction tryParse(str) {\n  try {\n    return JSON.parse(str);\n  } catch(e){\n    return false;\n  }\n}\n\n/**\n * Deallocates a parser's resources\n *\n * @api public\n */\n\nDecoder.prototype.destroy = function() {\n  if (this.reconstructor) {\n    this.reconstructor.finishedReconstruction();\n  }\n};\n\n/**\n * A manager of a binary event's 'buffer sequence'. Should\n * be constructed whenever a packet of type BINARY_EVENT is\n * decoded.\n *\n * @param {Object} packet\n * @return {BinaryReconstructor} initialized reconstructor\n * @api private\n */\n\nfunction BinaryReconstructor(packet) {\n  this.reconPack = packet;\n  this.buffers = [];\n}\n\n/**\n * Method to be called when binary data received from connection\n * after a BINARY_EVENT packet.\n *\n * @param {Buffer | ArrayBuffer} binData - the raw binary data received\n * @return {null | Object} returns null if more binary data is expected or\n *   a reconstructed packet object if all buffers have been received.\n * @api private\n */\n\nBinaryReconstructor.prototype.takeBinaryData = function(binData) {\n  this.buffers.push(binData);\n  if (this.buffers.length === this.reconPack.attachments) { // done with buffer list\n    var packet = binary.reconstructPacket(this.reconPack, this.buffers);\n    this.finishedReconstruction();\n    return packet;\n  }\n  return null;\n};\n\n/**\n * Cleans up binary packet reconstruction variables.\n *\n * @api private\n */\n\nBinaryReconstructor.prototype.finishedReconstruction = function() {\n  this.reconPack = null;\n  this.buffers = [];\n};\n\nfunction error(msg) {\n  return {\n    type: exports.ERROR,\n    data: 'parser error: ' + msg\n  };\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/socket.io-parser/index.js\n// module id = 4\n// module chunks = 0","\r\n/**\r\n * Expose `Emitter`.\r\n */\r\n\r\nif (typeof module !== 'undefined') {\r\n  module.exports = Emitter;\r\n}\r\n\r\n/**\r\n * Initialize a new `Emitter`.\r\n *\r\n * @api public\r\n */\r\n\r\nfunction Emitter(obj) {\r\n  if (obj) return mixin(obj);\r\n};\r\n\r\n/**\r\n * Mixin the emitter properties.\r\n *\r\n * @param {Object} obj\r\n * @return {Object}\r\n * @api private\r\n */\r\n\r\nfunction mixin(obj) {\r\n  for (var key in Emitter.prototype) {\r\n    obj[key] = Emitter.prototype[key];\r\n  }\r\n  return obj;\r\n}\r\n\r\n/**\r\n * Listen on the given `event` with `fn`.\r\n *\r\n * @param {String} event\r\n * @param {Function} fn\r\n * @return {Emitter}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.on =\r\nEmitter.prototype.addEventListener = function(event, fn){\r\n  this._callbacks = this._callbacks || {};\r\n  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])\r\n    .push(fn);\r\n  return this;\r\n};\r\n\r\n/**\r\n * Adds an `event` listener that will be invoked a single\r\n * time then automatically removed.\r\n *\r\n * @param {String} event\r\n * @param {Function} fn\r\n * @return {Emitter}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.once = function(event, fn){\r\n  function on() {\r\n    this.off(event, on);\r\n    fn.apply(this, arguments);\r\n  }\r\n\r\n  on.fn = fn;\r\n  this.on(event, on);\r\n  return this;\r\n};\r\n\r\n/**\r\n * Remove the given callback for `event` or all\r\n * registered callbacks.\r\n *\r\n * @param {String} event\r\n * @param {Function} fn\r\n * @return {Emitter}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.off =\r\nEmitter.prototype.removeListener =\r\nEmitter.prototype.removeAllListeners =\r\nEmitter.prototype.removeEventListener = function(event, fn){\r\n  this._callbacks = this._callbacks || {};\r\n\r\n  // all\r\n  if (0 == arguments.length) {\r\n    this._callbacks = {};\r\n    return this;\r\n  }\r\n\r\n  // specific event\r\n  var callbacks = this._callbacks['$' + event];\r\n  if (!callbacks) return this;\r\n\r\n  // remove all handlers\r\n  if (1 == arguments.length) {\r\n    delete this._callbacks['$' + event];\r\n    return this;\r\n  }\r\n\r\n  // remove specific handler\r\n  var cb;\r\n  for (var i = 0; i < callbacks.length; i++) {\r\n    cb = callbacks[i];\r\n    if (cb === fn || cb.fn === fn) {\r\n      callbacks.splice(i, 1);\r\n      break;\r\n    }\r\n  }\r\n  return this;\r\n};\r\n\r\n/**\r\n * Emit `event` with the given args.\r\n *\r\n * @param {String} event\r\n * @param {Mixed} ...\r\n * @return {Emitter}\r\n */\r\n\r\nEmitter.prototype.emit = function(event){\r\n  this._callbacks = this._callbacks || {};\r\n  var args = [].slice.call(arguments, 1)\r\n    , callbacks = this._callbacks['$' + event];\r\n\r\n  if (callbacks) {\r\n    callbacks = callbacks.slice(0);\r\n    for (var i = 0, len = callbacks.length; i < len; ++i) {\r\n      callbacks[i].apply(this, args);\r\n    }\r\n  }\r\n\r\n  return this;\r\n};\r\n\r\n/**\r\n * Return array of callbacks for `event`.\r\n *\r\n * @param {String} event\r\n * @return {Array}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.listeners = function(event){\r\n  this._callbacks = this._callbacks || {};\r\n  return this._callbacks['$' + event] || [];\r\n};\r\n\r\n/**\r\n * Check if this emitter has `event` handlers.\r\n *\r\n * @param {String} event\r\n * @return {Boolean}\r\n * @api public\r\n */\r\n\r\nEmitter.prototype.hasListeners = function(event){\r\n  return !! this.listeners(event).length;\r\n};\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/component-emitter/index.js\n// module id = 5\n// module chunks = 0","/*global Blob,File*/\n\n/**\n * Module requirements\n */\n\nvar isArray = require('isarray');\nvar isBuf = require('./is-buffer');\nvar toString = Object.prototype.toString;\nvar withNativeBlob = typeof Blob === 'function' || (typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]');\nvar withNativeFile = typeof File === 'function' || (typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]');\n\n/**\n * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder.\n * Anything with blobs or files should be fed through removeBlobs before coming\n * here.\n *\n * @param {Object} packet - socket.io event packet\n * @return {Object} with deconstructed packet and list of buffers\n * @api public\n */\n\nexports.deconstructPacket = function(packet) {\n  var buffers = [];\n  var packetData = packet.data;\n  var pack = packet;\n  pack.data = _deconstructPacket(packetData, buffers);\n  pack.attachments = buffers.length; // number of binary 'attachments'\n  return {packet: pack, buffers: buffers};\n};\n\nfunction _deconstructPacket(data, buffers) {\n  if (!data) return data;\n\n  if (isBuf(data)) {\n    var placeholder = { _placeholder: true, num: buffers.length };\n    buffers.push(data);\n    return placeholder;\n  } else if (isArray(data)) {\n    var newData = new Array(data.length);\n    for (var i = 0; i < data.length; i++) {\n      newData[i] = _deconstructPacket(data[i], buffers);\n    }\n    return newData;\n  } else if (typeof data === 'object' && !(data instanceof Date)) {\n    var newData = {};\n    for (var key in data) {\n      newData[key] = _deconstructPacket(data[key], buffers);\n    }\n    return newData;\n  }\n  return data;\n}\n\n/**\n * Reconstructs a binary packet from its placeholder packet and buffers\n *\n * @param {Object} packet - event packet with placeholders\n * @param {Array} buffers - binary buffers to put in placeholder positions\n * @return {Object} reconstructed packet\n * @api public\n */\n\nexports.reconstructPacket = function(packet, buffers) {\n  packet.data = _reconstructPacket(packet.data, buffers);\n  packet.attachments = undefined; // no longer useful\n  return packet;\n};\n\nfunction _reconstructPacket(data, buffers) {\n  if (!data) return data;\n\n  if (data && data._placeholder) {\n    return buffers[data.num]; // appropriate buffer (should be natural order anyway)\n  } else if (isArray(data)) {\n    for (var i = 0; i < data.length; i++) {\n      data[i] = _reconstructPacket(data[i], buffers);\n    }\n  } else if (typeof data === 'object') {\n    for (var key in data) {\n      data[key] = _reconstructPacket(data[key], buffers);\n    }\n  }\n\n  return data;\n}\n\n/**\n * Asynchronously removes Blobs or Files from data via\n * FileReader's readAsArrayBuffer method. Used before encoding\n * data as msgpack. Calls callback with the blobless data.\n *\n * @param {Object} data\n * @param {Function} callback\n * @api private\n */\n\nexports.removeBlobs = function(data, callback) {\n  function _removeBlobs(obj, curKey, containingObject) {\n    if (!obj) return obj;\n\n    // convert any blob\n    if ((withNativeBlob && obj instanceof Blob) ||\n        (withNativeFile && obj instanceof File)) {\n      pendingBlobs++;\n\n      // async filereader\n      var fileReader = new FileReader();\n      fileReader.onload = function() { // this.result == arraybuffer\n        if (containingObject) {\n          containingObject[curKey] = this.result;\n        }\n        else {\n          bloblessData = this.result;\n        }\n\n        // if nothing pending its callback time\n        if(! --pendingBlobs) {\n          callback(bloblessData);\n        }\n      };\n\n      fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer\n    } else if (isArray(obj)) { // handle array\n      for (var i = 0; i < obj.length; i++) {\n        _removeBlobs(obj[i], i, obj);\n      }\n    } else if (typeof obj === 'object' && !isBuf(obj)) { // and object\n      for (var key in obj) {\n        _removeBlobs(obj[key], key, obj);\n      }\n    }\n  }\n\n  var pendingBlobs = 0;\n  var bloblessData = data;\n  _removeBlobs(bloblessData);\n  if (!pendingBlobs) {\n    callback(bloblessData);\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/socket.io-parser/binary.js\n// module id = 6\n// module chunks = 0","var toString = {}.toString;\n\nmodule.exports = Array.isArray || function (arr) {\n  return toString.call(arr) == '[object Array]';\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/isarray/index.js\n// module id = 7\n// module chunks = 0","\nmodule.exports = isBuf;\n\nvar withNativeBuffer = typeof Buffer === 'function' && typeof Buffer.isBuffer === 'function';\nvar withNativeArrayBuffer = typeof ArrayBuffer === 'function';\n\nvar isView = function (obj) {\n  return typeof ArrayBuffer.isView === 'function' ? ArrayBuffer.isView(obj) : (obj.buffer instanceof ArrayBuffer);\n};\n\n/**\n * Returns true if obj is a buffer or an arraybuffer.\n *\n * @api private\n */\n\nfunction isBuf(obj) {\n  return (withNativeBuffer && Buffer.isBuffer(obj)) ||\n          (withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj)));\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/socket.io-parser/is-buffer.js\n// module id = 8\n// module chunks = 0","\n/**\n * Module dependencies.\n */\n\nvar eio = require('engine.io-client');\nvar Socket = require('./socket');\nvar Emitter = require('component-emitter');\nvar parser = require('socket.io-parser');\nvar on = require('./on');\nvar bind = require('component-bind');\nvar debug = require('debug')('socket.io-client:manager');\nvar indexOf = require('indexof');\nvar Backoff = require('backo2');\n\n/**\n * IE6+ hasOwnProperty\n */\n\nvar has = Object.prototype.hasOwnProperty;\n\n/**\n * Module exports\n */\n\nmodule.exports = Manager;\n\n/**\n * `Manager` constructor.\n *\n * @param {String} engine instance or engine uri/opts\n * @param {Object} options\n * @api public\n */\n\nfunction Manager (uri, opts) {\n  if (!(this instanceof Manager)) return new Manager(uri, opts);\n  if (uri && ('object' === typeof uri)) {\n    opts = uri;\n    uri = undefined;\n  }\n  opts = opts || {};\n\n  opts.path = opts.path || '/socket.io';\n  this.nsps = {};\n  this.subs = [];\n  this.opts = opts;\n  this.reconnection(opts.reconnection !== false);\n  this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);\n  this.reconnectionDelay(opts.reconnectionDelay || 1000);\n  this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);\n  this.randomizationFactor(opts.randomizationFactor || 0.5);\n  this.backoff = new Backoff({\n    min: this.reconnectionDelay(),\n    max: this.reconnectionDelayMax(),\n    jitter: this.randomizationFactor()\n  });\n  this.timeout(null == opts.timeout ? 20000 : opts.timeout);\n  this.readyState = 'closed';\n  this.uri = uri;\n  this.connecting = [];\n  this.lastPing = null;\n  this.encoding = false;\n  this.packetBuffer = [];\n  var _parser = opts.parser || parser;\n  this.encoder = new _parser.Encoder();\n  this.decoder = new _parser.Decoder();\n  this.autoConnect = opts.autoConnect !== false;\n  if (this.autoConnect) this.open();\n}\n\n/**\n * Propagate given event to sockets and emit on `this`\n *\n * @api private\n */\n\nManager.prototype.emitAll = function () {\n  this.emit.apply(this, arguments);\n  for (var nsp in this.nsps) {\n    if (has.call(this.nsps, nsp)) {\n      this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);\n    }\n  }\n};\n\n/**\n * Update `socket.id` of all sockets\n *\n * @api private\n */\n\nManager.prototype.updateSocketIds = function () {\n  for (var nsp in this.nsps) {\n    if (has.call(this.nsps, nsp)) {\n      this.nsps[nsp].id = this.generateId(nsp);\n    }\n  }\n};\n\n/**\n * generate `socket.id` for the given `nsp`\n *\n * @param {String} nsp\n * @return {String}\n * @api private\n */\n\nManager.prototype.generateId = function (nsp) {\n  return (nsp === '/' ? '' : (nsp + '#')) + this.engine.id;\n};\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Manager.prototype);\n\n/**\n * Sets the `reconnection` config.\n *\n * @param {Boolean} true/false if it should automatically reconnect\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnection = function (v) {\n  if (!arguments.length) return this._reconnection;\n  this._reconnection = !!v;\n  return this;\n};\n\n/**\n * Sets the reconnection attempts config.\n *\n * @param {Number} max reconnection attempts before giving up\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionAttempts = function (v) {\n  if (!arguments.length) return this._reconnectionAttempts;\n  this._reconnectionAttempts = v;\n  return this;\n};\n\n/**\n * Sets the delay between reconnections.\n *\n * @param {Number} delay\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionDelay = function (v) {\n  if (!arguments.length) return this._reconnectionDelay;\n  this._reconnectionDelay = v;\n  this.backoff && this.backoff.setMin(v);\n  return this;\n};\n\nManager.prototype.randomizationFactor = function (v) {\n  if (!arguments.length) return this._randomizationFactor;\n  this._randomizationFactor = v;\n  this.backoff && this.backoff.setJitter(v);\n  return this;\n};\n\n/**\n * Sets the maximum delay between reconnections.\n *\n * @param {Number} delay\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.reconnectionDelayMax = function (v) {\n  if (!arguments.length) return this._reconnectionDelayMax;\n  this._reconnectionDelayMax = v;\n  this.backoff && this.backoff.setMax(v);\n  return this;\n};\n\n/**\n * Sets the connection timeout. `false` to disable\n *\n * @return {Manager} self or value\n * @api public\n */\n\nManager.prototype.timeout = function (v) {\n  if (!arguments.length) return this._timeout;\n  this._timeout = v;\n  return this;\n};\n\n/**\n * Starts trying to reconnect if reconnection is enabled and we have not\n * started reconnecting yet\n *\n * @api private\n */\n\nManager.prototype.maybeReconnectOnOpen = function () {\n  // Only try to reconnect if it's the first time we're connecting\n  if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {\n    // keeps reconnection from firing twice for the same reconnection loop\n    this.reconnect();\n  }\n};\n\n/**\n * Sets the current transport `socket`.\n *\n * @param {Function} optional, callback\n * @return {Manager} self\n * @api public\n */\n\nManager.prototype.open =\nManager.prototype.connect = function (fn, opts) {\n\n  if (~this.readyState.indexOf('open')) return this;\n\n\n  this.engine = eio(this.uri, this.opts);\n  var socket = this.engine;\n  var self = this;\n  this.readyState = 'opening';\n  this.skipReconnect = false;\n\n  // emit `open`\n  var openSub = on(socket, 'open', function () {\n    self.onopen();\n    fn && fn();\n  });\n\n  // emit `connect_error`\n  var errorSub = on(socket, 'error', function (data) {\n\n    self.cleanup();\n    self.readyState = 'closed';\n    self.emitAll('connect_error', data);\n    if (fn) {\n      var err = new Error('Connection error');\n      err.data = data;\n      fn(err);\n    } else {\n      // Only do this if there is no fn to handle the error\n      self.maybeReconnectOnOpen();\n    }\n  });\n\n  // emit `connect_timeout`\n  if (false !== this._timeout) {\n    var timeout = this._timeout;\n\n\n    // set timer\n    var timer = setTimeout(function () {\n\n      openSub.destroy();\n      socket.close();\n      socket.emit('error', 'timeout');\n      self.emitAll('connect_timeout', timeout);\n    }, timeout);\n\n    this.subs.push({\n      destroy: function () {\n        clearTimeout(timer);\n      }\n    });\n  }\n\n  this.subs.push(openSub);\n  this.subs.push(errorSub);\n\n  return this;\n};\n\n/**\n * Called upon transport open.\n *\n * @api private\n */\n\nManager.prototype.onopen = function () {\n\n\n  // clear old subs\n  this.cleanup();\n\n  // mark as open\n  this.readyState = 'open';\n  this.emit('open');\n\n  // add new subs\n  var socket = this.engine;\n  this.subs.push(on(socket, 'data', bind(this, 'ondata')));\n  this.subs.push(on(socket, 'ping', bind(this, 'onping')));\n  this.subs.push(on(socket, 'pong', bind(this, 'onpong')));\n  this.subs.push(on(socket, 'error', bind(this, 'onerror')));\n  this.subs.push(on(socket, 'close', bind(this, 'onclose')));\n  this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));\n};\n\n/**\n * Called upon a ping.\n *\n * @api private\n */\n\nManager.prototype.onping = function () {\n  this.lastPing = new Date();\n  this.emitAll('ping');\n};\n\n/**\n * Called upon a packet.\n *\n * @api private\n */\n\nManager.prototype.onpong = function () {\n  this.emitAll('pong', new Date() - this.lastPing);\n};\n\n/**\n * Called with data.\n *\n * @api private\n */\n\nManager.prototype.ondata = function (data) {\n  this.decoder.add(data);\n};\n\n/**\n * Called when parser fully decodes a packet.\n *\n * @api private\n */\n\nManager.prototype.ondecoded = function (packet) {\n  this.emit('packet', packet);\n};\n\n/**\n * Called upon socket error.\n *\n * @api private\n */\n\nManager.prototype.onerror = function (err) {\n\n  this.emitAll('error', err);\n};\n\n/**\n * Creates a new socket for the given `nsp`.\n *\n * @return {Socket}\n * @api public\n */\n\nManager.prototype.socket = function (nsp, opts) {\n  var socket = this.nsps[nsp];\n  if (!socket) {\n    socket = new Socket(this, nsp, opts);\n    this.nsps[nsp] = socket;\n    var self = this;\n    socket.on('connecting', onConnecting);\n    socket.on('connect', function () {\n      socket.id = self.generateId(nsp);\n    });\n\n    if (this.autoConnect) {\n      // manually call here since connecting event is fired before listening\n      onConnecting();\n    }\n  }\n\n  function onConnecting () {\n    if (!~indexOf(self.connecting, socket)) {\n      self.connecting.push(socket);\n    }\n  }\n\n  return socket;\n};\n\n/**\n * Called upon a socket close.\n *\n * @param {Socket} socket\n */\n\nManager.prototype.destroy = function (socket) {\n  var index = indexOf(this.connecting, socket);\n  if (~index) this.connecting.splice(index, 1);\n  if (this.connecting.length) return;\n\n  this.close();\n};\n\n/**\n * Writes a packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nManager.prototype.packet = function (packet) {\n\n  var self = this;\n  if (packet.query && packet.type === 0) packet.nsp += '?' + packet.query;\n\n  if (!self.encoding) {\n    // encode, then write to engine with result\n    self.encoding = true;\n    this.encoder.encode(packet, function (encodedPackets) {\n      for (var i = 0; i < encodedPackets.length; i++) {\n        self.engine.write(encodedPackets[i], packet.options);\n      }\n      self.encoding = false;\n      self.processPacketQueue();\n    });\n  } else { // add packet to the queue\n    self.packetBuffer.push(packet);\n  }\n};\n\n/**\n * If packet buffer is non-empty, begins encoding the\n * next packet in line.\n *\n * @api private\n */\n\nManager.prototype.processPacketQueue = function () {\n  if (this.packetBuffer.length > 0 && !this.encoding) {\n    var pack = this.packetBuffer.shift();\n    this.packet(pack);\n  }\n};\n\n/**\n * Clean up transport subscriptions and packet buffer.\n *\n * @api private\n */\n\nManager.prototype.cleanup = function () {\n\n\n  var subsLength = this.subs.length;\n  for (var i = 0; i < subsLength; i++) {\n    var sub = this.subs.shift();\n    sub.destroy();\n  }\n\n  this.packetBuffer = [];\n  this.encoding = false;\n  this.lastPing = null;\n\n  this.decoder.destroy();\n};\n\n/**\n * Close the current socket.\n *\n * @api private\n */\n\nManager.prototype.close =\nManager.prototype.disconnect = function () {\n\n  this.skipReconnect = true;\n  this.reconnecting = false;\n  if ('opening' === this.readyState) {\n    // `onclose` will not fire because\n    // an open event never happened\n    this.cleanup();\n  }\n  this.backoff.reset();\n  this.readyState = 'closed';\n  if (this.engine) this.engine.close();\n};\n\n/**\n * Called upon engine close.\n *\n * @api private\n */\n\nManager.prototype.onclose = function (reason) {\n\n\n  this.cleanup();\n  this.backoff.reset();\n  this.readyState = 'closed';\n  this.emit('close', reason);\n\n  if (this._reconnection && !this.skipReconnect) {\n    this.reconnect();\n  }\n};\n\n/**\n * Attempt a reconnection.\n *\n * @api private\n */\n\nManager.prototype.reconnect = function () {\n  if (this.reconnecting || this.skipReconnect) return this;\n\n  var self = this;\n\n  if (this.backoff.attempts >= this._reconnectionAttempts) {\n\n    this.backoff.reset();\n    this.emitAll('reconnect_failed');\n    this.reconnecting = false;\n  } else {\n    var delay = this.backoff.duration();\n\n\n    this.reconnecting = true;\n    var timer = setTimeout(function () {\n      if (self.skipReconnect) return;\n\n\n      self.emitAll('reconnect_attempt', self.backoff.attempts);\n      self.emitAll('reconnecting', self.backoff.attempts);\n\n      // check again for the case socket closed in above events\n      if (self.skipReconnect) return;\n\n      self.open(function (err) {\n        if (err) {\n\n          self.reconnecting = false;\n          self.reconnect();\n          self.emitAll('reconnect_error', err.data);\n        } else {\n\n          self.onreconnect();\n        }\n      });\n    }, delay);\n\n    this.subs.push({\n      destroy: function () {\n        clearTimeout(timer);\n      }\n    });\n  }\n};\n\n/**\n * Called upon successful reconnect.\n *\n * @api private\n */\n\nManager.prototype.onreconnect = function () {\n  var attempt = this.backoff.attempts;\n  this.reconnecting = false;\n  this.backoff.reset();\n  this.updateSocketIds();\n  this.emitAll('reconnect', attempt);\n};\n\n\n\n// WEBPACK FOOTER //\n// ./lib/manager.js","\nmodule.exports = require('./socket');\n\n/**\n * Exports parser\n *\n * @api public\n *\n */\nmodule.exports.parser = require('engine.io-parser');\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/index.js\n// module id = 10\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar transports = require('./transports/index');\nvar Emitter = require('component-emitter');\nvar debug = require('debug')('engine.io-client:socket');\nvar index = require('indexof');\nvar parser = require('engine.io-parser');\nvar parseuri = require('parseuri');\nvar parseqs = require('parseqs');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Socket;\n\n/**\n * Socket constructor.\n *\n * @param {String|Object} uri or options\n * @param {Object} options\n * @api public\n */\n\nfunction Socket (uri, opts) {\n  if (!(this instanceof Socket)) return new Socket(uri, opts);\n\n  opts = opts || {};\n\n  if (uri && 'object' === typeof uri) {\n    opts = uri;\n    uri = null;\n  }\n\n  if (uri) {\n    uri = parseuri(uri);\n    opts.hostname = uri.host;\n    opts.secure = uri.protocol === 'https' || uri.protocol === 'wss';\n    opts.port = uri.port;\n    if (uri.query) opts.query = uri.query;\n  } else if (opts.host) {\n    opts.hostname = parseuri(opts.host).host;\n  }\n\n  this.secure = null != opts.secure ? opts.secure\n    : (typeof location !== 'undefined' && 'https:' === location.protocol);\n\n  if (opts.hostname && !opts.port) {\n    // if no port is specified manually, use the protocol default\n    opts.port = this.secure ? '443' : '80';\n  }\n\n  this.agent = opts.agent || false;\n  this.hostname = opts.hostname ||\n    (typeof location !== 'undefined' ? location.hostname : 'localhost');\n  this.port = opts.port || (typeof location !== 'undefined' && location.port\n      ? location.port\n      : (this.secure ? 443 : 80));\n  this.query = opts.query || {};\n  if ('string' === typeof this.query) this.query = parseqs.decode(this.query);\n  this.upgrade = false !== opts.upgrade;\n  this.path = (opts.path || '/engine.io').replace(/\\/$/, '') + '/';\n  this.forceJSONP = !!opts.forceJSONP;\n  this.jsonp = false !== opts.jsonp;\n  this.forceBase64 = !!opts.forceBase64;\n  this.enablesXDR = !!opts.enablesXDR;\n  this.timestampParam = opts.timestampParam || 't';\n  this.timestampRequests = opts.timestampRequests;\n  this.transports = opts.transports || ['polling', 'websocket'];\n  this.transportOptions = opts.transportOptions || {};\n  this.readyState = '';\n  this.writeBuffer = [];\n  this.prevBufferLen = 0;\n  this.policyPort = opts.policyPort || 843;\n  this.rememberUpgrade = opts.rememberUpgrade || false;\n  this.binaryType = null;\n  this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;\n  this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || {}) : false;\n\n  if (true === this.perMessageDeflate) this.perMessageDeflate = {};\n  if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) {\n    this.perMessageDeflate.threshold = 1024;\n  }\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx || null;\n  this.key = opts.key || null;\n  this.passphrase = opts.passphrase || null;\n  this.cert = opts.cert || null;\n  this.ca = opts.ca || null;\n  this.ciphers = opts.ciphers || null;\n  this.rejectUnauthorized = opts.rejectUnauthorized === undefined ? true : opts.rejectUnauthorized;\n  this.forceNode = !!opts.forceNode;\n\n  // detect ReactNative environment\n  this.isReactNative = (typeof navigator !== 'undefined' && typeof navigator.product === 'string' && navigator.product.toLowerCase() === 'reactnative');\n\n  // other options for Node.js or ReactNative client\n  if (typeof self === 'undefined' || this.isReactNative) {\n    if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) {\n      this.extraHeaders = opts.extraHeaders;\n    }\n\n    if (opts.localAddress) {\n      this.localAddress = opts.localAddress;\n    }\n  }\n\n  // set on handshake\n  this.id = null;\n  this.upgrades = null;\n  this.pingInterval = null;\n  this.pingTimeout = null;\n\n  // set on heartbeat\n  this.pingIntervalTimer = null;\n  this.pingTimeoutTimer = null;\n\n  this.open();\n}\n\nSocket.priorWebsocketSuccess = false;\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Socket.prototype);\n\n/**\n * Protocol version.\n *\n * @api public\n */\n\nSocket.protocol = parser.protocol; // this is an int\n\n/**\n * Expose deps for legacy compatibility\n * and standalone browser access.\n */\n\nSocket.Socket = Socket;\nSocket.Transport = require('./transport');\nSocket.transports = require('./transports/index');\nSocket.parser = require('engine.io-parser');\n\n/**\n * Creates transport of the given type.\n *\n * @param {String} transport name\n * @return {Transport}\n * @api private\n */\n\nSocket.prototype.createTransport = function (name) {\n\n  var query = clone(this.query);\n\n  // append engine.io protocol identifier\n  query.EIO = parser.protocol;\n\n  // transport name\n  query.transport = name;\n\n  // per-transport options\n  var options = this.transportOptions[name] || {};\n\n  // session id if we already have one\n  if (this.id) query.sid = this.id;\n\n  var transport = new transports[name]({\n    query: query,\n    socket: this,\n    agent: options.agent || this.agent,\n    hostname: options.hostname || this.hostname,\n    port: options.port || this.port,\n    secure: options.secure || this.secure,\n    path: options.path || this.path,\n    forceJSONP: options.forceJSONP || this.forceJSONP,\n    jsonp: options.jsonp || this.jsonp,\n    forceBase64: options.forceBase64 || this.forceBase64,\n    enablesXDR: options.enablesXDR || this.enablesXDR,\n    timestampRequests: options.timestampRequests || this.timestampRequests,\n    timestampParam: options.timestampParam || this.timestampParam,\n    policyPort: options.policyPort || this.policyPort,\n    pfx: options.pfx || this.pfx,\n    key: options.key || this.key,\n    passphrase: options.passphrase || this.passphrase,\n    cert: options.cert || this.cert,\n    ca: options.ca || this.ca,\n    ciphers: options.ciphers || this.ciphers,\n    rejectUnauthorized: options.rejectUnauthorized || this.rejectUnauthorized,\n    perMessageDeflate: options.perMessageDeflate || this.perMessageDeflate,\n    extraHeaders: options.extraHeaders || this.extraHeaders,\n    forceNode: options.forceNode || this.forceNode,\n    localAddress: options.localAddress || this.localAddress,\n    requestTimeout: options.requestTimeout || this.requestTimeout,\n    protocols: options.protocols || void (0),\n    isReactNative: this.isReactNative\n  });\n\n  return transport;\n};\n\nfunction clone (obj) {\n  var o = {};\n  for (var i in obj) {\n    if (obj.hasOwnProperty(i)) {\n      o[i] = obj[i];\n    }\n  }\n  return o;\n}\n\n/**\n * Initializes transport to use and starts probe.\n *\n * @api private\n */\nSocket.prototype.open = function () {\n  var transport;\n  if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') !== -1) {\n    transport = 'websocket';\n  } else if (0 === this.transports.length) {\n    // Emit error on next tick so it can be listened to\n    var self = this;\n    setTimeout(function () {\n      self.emit('error', 'No transports available');\n    }, 0);\n    return;\n  } else {\n    transport = this.transports[0];\n  }\n  this.readyState = 'opening';\n\n  // Retry with the next transport if the transport is disabled (jsonp: false)\n  try {\n    transport = this.createTransport(transport);\n  } catch (e) {\n    this.transports.shift();\n    this.open();\n    return;\n  }\n\n  transport.open();\n  this.setTransport(transport);\n};\n\n/**\n * Sets the current transport. Disables the existing one (if any).\n *\n * @api private\n */\n\nSocket.prototype.setTransport = function (transport) {\n\n  var self = this;\n\n  if (this.transport) {\n\n    this.transport.removeAllListeners();\n  }\n\n  // set up transport\n  this.transport = transport;\n\n  // set up transport listeners\n  transport\n  .on('drain', function () {\n    self.onDrain();\n  })\n  .on('packet', function (packet) {\n    self.onPacket(packet);\n  })\n  .on('error', function (e) {\n    self.onError(e);\n  })\n  .on('close', function () {\n    self.onClose('transport close');\n  });\n};\n\n/**\n * Probes a transport.\n *\n * @param {String} transport name\n * @api private\n */\n\nSocket.prototype.probe = function (name) {\n\n  var transport = this.createTransport(name, { probe: 1 });\n  var failed = false;\n  var self = this;\n\n  Socket.priorWebsocketSuccess = false;\n\n  function onTransportOpen () {\n    if (self.onlyBinaryUpgrades) {\n      var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;\n      failed = failed || upgradeLosesBinary;\n    }\n    if (failed) return;\n\n\n    transport.send([{ type: 'ping', data: 'probe' }]);\n    transport.once('packet', function (msg) {\n      if (failed) return;\n      if ('pong' === msg.type && 'probe' === msg.data) {\n\n        self.upgrading = true;\n        self.emit('upgrading', transport);\n        if (!transport) return;\n        Socket.priorWebsocketSuccess = 'websocket' === transport.name;\n\n\n        self.transport.pause(function () {\n          if (failed) return;\n          if ('closed' === self.readyState) return;\n\n\n          cleanup();\n\n          self.setTransport(transport);\n          transport.send([{ type: 'upgrade' }]);\n          self.emit('upgrade', transport);\n          transport = null;\n          self.upgrading = false;\n          self.flush();\n        });\n      } else {\n\n        var err = new Error('probe error');\n        err.transport = transport.name;\n        self.emit('upgradeError', err);\n      }\n    });\n  }\n\n  function freezeTransport () {\n    if (failed) return;\n\n    // Any callback called by transport should be ignored since now\n    failed = true;\n\n    cleanup();\n\n    transport.close();\n    transport = null;\n  }\n\n  // Handle any error that happens while probing\n  function onerror (err) {\n    var error = new Error('probe error: ' + err);\n    error.transport = transport.name;\n\n    freezeTransport();\n\n\n\n    self.emit('upgradeError', error);\n  }\n\n  function onTransportClose () {\n    onerror('transport closed');\n  }\n\n  // When the socket is closed while we're probing\n  function onclose () {\n    onerror('socket closed');\n  }\n\n  // When the socket is upgraded while we're probing\n  function onupgrade (to) {\n    if (transport && to.name !== transport.name) {\n\n      freezeTransport();\n    }\n  }\n\n  // Remove all listeners on the transport and on self\n  function cleanup () {\n    transport.removeListener('open', onTransportOpen);\n    transport.removeListener('error', onerror);\n    transport.removeListener('close', onTransportClose);\n    self.removeListener('close', onclose);\n    self.removeListener('upgrading', onupgrade);\n  }\n\n  transport.once('open', onTransportOpen);\n  transport.once('error', onerror);\n  transport.once('close', onTransportClose);\n\n  this.once('close', onclose);\n  this.once('upgrading', onupgrade);\n\n  transport.open();\n};\n\n/**\n * Called when connection is deemed open.\n *\n * @api public\n */\n\nSocket.prototype.onOpen = function () {\n\n  this.readyState = 'open';\n  Socket.priorWebsocketSuccess = 'websocket' === this.transport.name;\n  this.emit('open');\n  this.flush();\n\n  // we check for `readyState` in case an `open`\n  // listener already closed the socket\n  if ('open' === this.readyState && this.upgrade && this.transport.pause) {\n\n    for (var i = 0, l = this.upgrades.length; i < l; i++) {\n      this.probe(this.upgrades[i]);\n    }\n  }\n};\n\n/**\n * Handles a packet.\n *\n * @api private\n */\n\nSocket.prototype.onPacket = function (packet) {\n  if ('opening' === this.readyState || 'open' === this.readyState ||\n      'closing' === this.readyState) {\n\n\n    this.emit('packet', packet);\n\n    // Socket is live - any packet counts\n    this.emit('heartbeat');\n\n    switch (packet.type) {\n      case 'open':\n        this.onHandshake(JSON.parse(packet.data));\n        break;\n\n      case 'pong':\n        this.setPing();\n        this.emit('pong');\n        break;\n\n      case 'error':\n        var err = new Error('server error');\n        err.code = packet.data;\n        this.onError(err);\n        break;\n\n      case 'message':\n        this.emit('data', packet.data);\n        this.emit('message', packet.data);\n        break;\n    }\n  } else {\n\n  }\n};\n\n/**\n * Called upon handshake completion.\n *\n * @param {Object} handshake obj\n * @api private\n */\n\nSocket.prototype.onHandshake = function (data) {\n  this.emit('handshake', data);\n  this.id = data.sid;\n  this.transport.query.sid = data.sid;\n  this.upgrades = this.filterUpgrades(data.upgrades);\n  this.pingInterval = data.pingInterval;\n  this.pingTimeout = data.pingTimeout;\n  this.onOpen();\n  // In case open handler closes socket\n  if ('closed' === this.readyState) return;\n  this.setPing();\n\n  // Prolong liveness of socket on heartbeat\n  this.removeListener('heartbeat', this.onHeartbeat);\n  this.on('heartbeat', this.onHeartbeat);\n};\n\n/**\n * Resets ping timeout.\n *\n * @api private\n */\n\nSocket.prototype.onHeartbeat = function (timeout) {\n  clearTimeout(this.pingTimeoutTimer);\n  var self = this;\n  self.pingTimeoutTimer = setTimeout(function () {\n    if ('closed' === self.readyState) return;\n    self.onClose('ping timeout');\n  }, timeout || (self.pingInterval + self.pingTimeout));\n};\n\n/**\n * Pings server every `this.pingInterval` and expects response\n * within `this.pingTimeout` or closes connection.\n *\n * @api private\n */\n\nSocket.prototype.setPing = function () {\n  var self = this;\n  clearTimeout(self.pingIntervalTimer);\n  self.pingIntervalTimer = setTimeout(function () {\n\n    self.ping();\n    self.onHeartbeat(self.pingTimeout);\n  }, self.pingInterval);\n};\n\n/**\n* Sends a ping packet.\n*\n* @api private\n*/\n\nSocket.prototype.ping = function () {\n  var self = this;\n  this.sendPacket('ping', function () {\n    self.emit('ping');\n  });\n};\n\n/**\n * Called on `drain` event\n *\n * @api private\n */\n\nSocket.prototype.onDrain = function () {\n  this.writeBuffer.splice(0, this.prevBufferLen);\n\n  // setting prevBufferLen = 0 is very important\n  // for example, when upgrading, upgrade packet is sent over,\n  // and a nonzero prevBufferLen could cause problems on `drain`\n  this.prevBufferLen = 0;\n\n  if (0 === this.writeBuffer.length) {\n    this.emit('drain');\n  } else {\n    this.flush();\n  }\n};\n\n/**\n * Flush write buffers.\n *\n * @api private\n */\n\nSocket.prototype.flush = function () {\n  if ('closed' !== this.readyState && this.transport.writable &&\n    !this.upgrading && this.writeBuffer.length) {\n\n    this.transport.send(this.writeBuffer);\n    // keep track of current length of writeBuffer\n    // splice writeBuffer and callbackBuffer on `drain`\n    this.prevBufferLen = this.writeBuffer.length;\n    this.emit('flush');\n  }\n};\n\n/**\n * Sends a message.\n *\n * @param {String} message.\n * @param {Function} callback function.\n * @param {Object} options.\n * @return {Socket} for chaining.\n * @api public\n */\n\nSocket.prototype.write =\nSocket.prototype.send = function (msg, options, fn) {\n  this.sendPacket('message', msg, options, fn);\n  return this;\n};\n\n/**\n * Sends a packet.\n *\n * @param {String} packet type.\n * @param {String} data.\n * @param {Object} options.\n * @param {Function} callback function.\n * @api private\n */\n\nSocket.prototype.sendPacket = function (type, data, options, fn) {\n  if ('function' === typeof data) {\n    fn = data;\n    data = undefined;\n  }\n\n  if ('function' === typeof options) {\n    fn = options;\n    options = null;\n  }\n\n  if ('closing' === this.readyState || 'closed' === this.readyState) {\n    return;\n  }\n\n  options = options || {};\n  options.compress = false !== options.compress;\n\n  var packet = {\n    type: type,\n    data: data,\n    options: options\n  };\n  this.emit('packetCreate', packet);\n  this.writeBuffer.push(packet);\n  if (fn) this.once('flush', fn);\n  this.flush();\n};\n\n/**\n * Closes the connection.\n *\n * @api private\n */\n\nSocket.prototype.close = function () {\n  if ('opening' === this.readyState || 'open' === this.readyState) {\n    this.readyState = 'closing';\n\n    var self = this;\n\n    if (this.writeBuffer.length) {\n      this.once('drain', function () {\n        if (this.upgrading) {\n          waitForUpgrade();\n        } else {\n          close();\n        }\n      });\n    } else if (this.upgrading) {\n      waitForUpgrade();\n    } else {\n      close();\n    }\n  }\n\n  function close () {\n    self.onClose('forced close');\n\n    self.transport.close();\n  }\n\n  function cleanupAndClose () {\n    self.removeListener('upgrade', cleanupAndClose);\n    self.removeListener('upgradeError', cleanupAndClose);\n    close();\n  }\n\n  function waitForUpgrade () {\n    // wait for upgrade to finish since we can't send packets while pausing a transport\n    self.once('upgrade', cleanupAndClose);\n    self.once('upgradeError', cleanupAndClose);\n  }\n\n  return this;\n};\n\n/**\n * Called upon transport error\n *\n * @api private\n */\n\nSocket.prototype.onError = function (err) {\n\n  Socket.priorWebsocketSuccess = false;\n  this.emit('error', err);\n  this.onClose('transport error', err);\n};\n\n/**\n * Called upon transport close.\n *\n * @api private\n */\n\nSocket.prototype.onClose = function (reason, desc) {\n  if ('opening' === this.readyState || 'open' === this.readyState || 'closing' === this.readyState) {\n\n    var self = this;\n\n    // clear timers\n    clearTimeout(this.pingIntervalTimer);\n    clearTimeout(this.pingTimeoutTimer);\n\n    // stop event from firing again for transport\n    this.transport.removeAllListeners('close');\n\n    // ensure transport won't stay open\n    this.transport.close();\n\n    // ignore further transport communication\n    this.transport.removeAllListeners();\n\n    // set ready state\n    this.readyState = 'closed';\n\n    // clear session id\n    this.id = null;\n\n    // emit close event\n    this.emit('close', reason, desc);\n\n    // clean buffers after, so users can still\n    // grab the buffers on `close` event\n    self.writeBuffer = [];\n    self.prevBufferLen = 0;\n  }\n};\n\n/**\n * Filters upgrades, returning only those matching client transports.\n *\n * @param {Array} server upgrades\n * @api private\n *\n */\n\nSocket.prototype.filterUpgrades = function (upgrades) {\n  var filteredUpgrades = [];\n  for (var i = 0, j = upgrades.length; i < j; i++) {\n    if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);\n  }\n  return filteredUpgrades;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/socket.js\n// module id = 11\n// module chunks = 0","/**\n * Module dependencies\n */\n\nvar XMLHttpRequest = require('xmlhttprequest-ssl');\nvar XHR = require('./polling-xhr');\nvar JSONP = require('./polling-jsonp');\nvar websocket = require('./websocket');\n\n/**\n * Export transports.\n */\n\nexports.polling = polling;\nexports.websocket = websocket;\n\n/**\n * Polling transport polymorphic constructor.\n * Decides on xhr vs jsonp based on feature detection.\n *\n * @api private\n */\n\nfunction polling (opts) {\n  var xhr;\n  var xd = false;\n  var xs = false;\n  var jsonp = false !== opts.jsonp;\n\n  if (typeof location !== 'undefined') {\n    var isSSL = 'https:' === location.protocol;\n    var port = location.port;\n\n    // some user agents have empty `location.port`\n    if (!port) {\n      port = isSSL ? 443 : 80;\n    }\n\n    xd = opts.hostname !== location.hostname || port !== opts.port;\n    xs = opts.secure !== isSSL;\n  }\n\n  opts.xdomain = xd;\n  opts.xscheme = xs;\n  xhr = new XMLHttpRequest(opts);\n\n  if ('open' in xhr && !opts.forceJSONP) {\n    return new XHR(opts);\n  } else {\n    if (!jsonp) throw new Error('JSONP disabled');\n    return new JSONP(opts);\n  }\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/index.js\n// module id = 12\n// module chunks = 0","// browser shim for xmlhttprequest module\n\nvar hasCORS = require('has-cors');\n\nmodule.exports = function (opts) {\n  var xdomain = opts.xdomain;\n\n  // scheme must be same when usign XDomainRequest\n  // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx\n  var xscheme = opts.xscheme;\n\n  // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.\n  // https://github.com/Automattic/engine.io-client/pull/217\n  var enablesXDR = opts.enablesXDR;\n\n  // XMLHttpRequest can be disabled on IE\n  try {\n    if ('undefined' !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {\n      return new XMLHttpRequest();\n    }\n  } catch (e) { }\n\n  // Use XDomainRequest for IE8 if enablesXDR is true\n  // because loading bar keeps flashing when using jsonp-polling\n  // https://github.com/yujiosaka/socke.io-ie8-loading-example\n  try {\n    if ('undefined' !== typeof XDomainRequest && !xscheme && enablesXDR) {\n      return new XDomainRequest();\n    }\n  } catch (e) { }\n\n  if (!xdomain) {\n    try {\n      return new self[['Active'].concat('Object').join('X')]('Microsoft.XMLHTTP');\n    } catch (e) { }\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/xmlhttprequest.js\n// module id = 13\n// module chunks = 0","\n/**\n * Module exports.\n *\n * Logic borrowed from Modernizr:\n *\n *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js\n */\n\ntry {\n  module.exports = typeof XMLHttpRequest !== 'undefined' &&\n    'withCredentials' in new XMLHttpRequest();\n} catch (err) {\n  // if XMLHttp support is disabled in IE then it will throw\n  // when trying to create\n  module.exports = false;\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/has-cors/index.js\n// module id = 14\n// module chunks = 0","/* global attachEvent */\n\n/**\n * Module requirements.\n */\n\nvar XMLHttpRequest = require('xmlhttprequest-ssl');\nvar Polling = require('./polling');\nvar Emitter = require('component-emitter');\nvar inherit = require('component-inherit');\nvar debug = require('debug')('engine.io-client:polling-xhr');\n\n/**\n * Module exports.\n */\n\nmodule.exports = XHR;\nmodule.exports.Request = Request;\n\n/**\n * Empty function\n */\n\nfunction empty () {}\n\n/**\n * XHR Polling constructor.\n *\n * @param {Object} opts\n * @api public\n */\n\nfunction XHR (opts) {\n  Polling.call(this, opts);\n  this.requestTimeout = opts.requestTimeout;\n  this.extraHeaders = opts.extraHeaders;\n\n  if (typeof location !== 'undefined') {\n    var isSSL = 'https:' === location.protocol;\n    var port = location.port;\n\n    // some user agents have empty `location.port`\n    if (!port) {\n      port = isSSL ? 443 : 80;\n    }\n\n    this.xd = (typeof location !== 'undefined' && opts.hostname !== location.hostname) ||\n      port !== opts.port;\n    this.xs = opts.secure !== isSSL;\n  }\n}\n\n/**\n * Inherits from Polling.\n */\n\ninherit(XHR, Polling);\n\n/**\n * XHR supports binary\n */\n\nXHR.prototype.supportsBinary = true;\n\n/**\n * Creates a request.\n *\n * @param {String} method\n * @api private\n */\n\nXHR.prototype.request = function (opts) {\n  opts = opts || {};\n  opts.uri = this.uri();\n  opts.xd = this.xd;\n  opts.xs = this.xs;\n  opts.agent = this.agent || false;\n  opts.supportsBinary = this.supportsBinary;\n  opts.enablesXDR = this.enablesXDR;\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n  opts.requestTimeout = this.requestTimeout;\n\n  // other options for Node.js client\n  opts.extraHeaders = this.extraHeaders;\n\n  return new Request(opts);\n};\n\n/**\n * Sends data.\n *\n * @param {String} data to send.\n * @param {Function} called upon flush.\n * @api private\n */\n\nXHR.prototype.doWrite = function (data, fn) {\n  var isBinary = typeof data !== 'string' && data !== undefined;\n  var req = this.request({ method: 'POST', data: data, isBinary: isBinary });\n  var self = this;\n  req.on('success', fn);\n  req.on('error', function (err) {\n    self.onError('xhr post error', err);\n  });\n  this.sendXhr = req;\n};\n\n/**\n * Starts a poll cycle.\n *\n * @api private\n */\n\nXHR.prototype.doPoll = function () {\n\n  var req = this.request();\n  var self = this;\n  req.on('data', function (data) {\n    self.onData(data);\n  });\n  req.on('error', function (err) {\n    self.onError('xhr poll error', err);\n  });\n  this.pollXhr = req;\n};\n\n/**\n * Request constructor\n *\n * @param {Object} options\n * @api public\n */\n\nfunction Request (opts) {\n  this.method = opts.method || 'GET';\n  this.uri = opts.uri;\n  this.xd = !!opts.xd;\n  this.xs = !!opts.xs;\n  this.async = false !== opts.async;\n  this.data = undefined !== opts.data ? opts.data : null;\n  this.agent = opts.agent;\n  this.isBinary = opts.isBinary;\n  this.supportsBinary = opts.supportsBinary;\n  this.enablesXDR = opts.enablesXDR;\n  this.requestTimeout = opts.requestTimeout;\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx;\n  this.key = opts.key;\n  this.passphrase = opts.passphrase;\n  this.cert = opts.cert;\n  this.ca = opts.ca;\n  this.ciphers = opts.ciphers;\n  this.rejectUnauthorized = opts.rejectUnauthorized;\n\n  // other options for Node.js client\n  this.extraHeaders = opts.extraHeaders;\n\n  this.create();\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Request.prototype);\n\n/**\n * Creates the XHR object and sends the request.\n *\n * @api private\n */\n\nRequest.prototype.create = function () {\n  var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n\n  var xhr = this.xhr = new XMLHttpRequest(opts);\n  var self = this;\n\n  try {\n\n    xhr.open(this.method, this.uri, this.async);\n    try {\n      if (this.extraHeaders) {\n        xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);\n        for (var i in this.extraHeaders) {\n          if (this.extraHeaders.hasOwnProperty(i)) {\n            xhr.setRequestHeader(i, this.extraHeaders[i]);\n          }\n        }\n      }\n    } catch (e) {}\n\n    if ('POST' === this.method) {\n      try {\n        if (this.isBinary) {\n          xhr.setRequestHeader('Content-type', 'application/octet-stream');\n        } else {\n          xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');\n        }\n      } catch (e) {}\n    }\n\n    try {\n      xhr.setRequestHeader('Accept', '*/*');\n    } catch (e) {}\n\n    // ie6 check\n    if ('withCredentials' in xhr) {\n      xhr.withCredentials = true;\n    }\n\n    if (this.requestTimeout) {\n      xhr.timeout = this.requestTimeout;\n    }\n\n    if (this.hasXDR()) {\n      xhr.onload = function () {\n        self.onLoad();\n      };\n      xhr.onerror = function () {\n        self.onError(xhr.responseText);\n      };\n    } else {\n      xhr.onreadystatechange = function () {\n        if (xhr.readyState === 2) {\n          try {\n            var contentType = xhr.getResponseHeader('Content-Type');\n            if (self.supportsBinary && contentType === 'application/octet-stream') {\n              xhr.responseType = 'arraybuffer';\n            }\n          } catch (e) {}\n        }\n        if (4 !== xhr.readyState) return;\n        if (200 === xhr.status || 1223 === xhr.status) {\n          self.onLoad();\n        } else {\n          // make sure the `error` event handler that's user-set\n          // does not throw in the same tick and gets caught here\n          setTimeout(function () {\n            self.onError(xhr.status);\n          }, 0);\n        }\n      };\n    }\n\n\n    xhr.send(this.data);\n  } catch (e) {\n    // Need to defer since .create() is called directly fhrom the constructor\n    // and thus the 'error' event can only be only bound *after* this exception\n    // occurs.  Therefore, also, we cannot throw here at all.\n    setTimeout(function () {\n      self.onError(e);\n    }, 0);\n    return;\n  }\n\n  if (typeof document !== 'undefined') {\n    this.index = Request.requestsCount++;\n    Request.requests[this.index] = this;\n  }\n};\n\n/**\n * Called upon successful response.\n *\n * @api private\n */\n\nRequest.prototype.onSuccess = function () {\n  this.emit('success');\n  this.cleanup();\n};\n\n/**\n * Called if we have data.\n *\n * @api private\n */\n\nRequest.prototype.onData = function (data) {\n  this.emit('data', data);\n  this.onSuccess();\n};\n\n/**\n * Called upon error.\n *\n * @api private\n */\n\nRequest.prototype.onError = function (err) {\n  this.emit('error', err);\n  this.cleanup(true);\n};\n\n/**\n * Cleans up house.\n *\n * @api private\n */\n\nRequest.prototype.cleanup = function (fromError) {\n  if ('undefined' === typeof this.xhr || null === this.xhr) {\n    return;\n  }\n  // xmlhttprequest\n  if (this.hasXDR()) {\n    this.xhr.onload = this.xhr.onerror = empty;\n  } else {\n    this.xhr.onreadystatechange = empty;\n  }\n\n  if (fromError) {\n    try {\n      this.xhr.abort();\n    } catch (e) {}\n  }\n\n  if (typeof document !== 'undefined') {\n    delete Request.requests[this.index];\n  }\n\n  this.xhr = null;\n};\n\n/**\n * Called upon load.\n *\n * @api private\n */\n\nRequest.prototype.onLoad = function () {\n  var data;\n  try {\n    var contentType;\n    try {\n      contentType = this.xhr.getResponseHeader('Content-Type');\n    } catch (e) {}\n    if (contentType === 'application/octet-stream') {\n      data = this.xhr.response || this.xhr.responseText;\n    } else {\n      data = this.xhr.responseText;\n    }\n  } catch (e) {\n    this.onError(e);\n  }\n  if (null != data) {\n    this.onData(data);\n  }\n};\n\n/**\n * Check if it has XDomainRequest.\n *\n * @api private\n */\n\nRequest.prototype.hasXDR = function () {\n  return typeof XDomainRequest !== 'undefined' && !this.xs && this.enablesXDR;\n};\n\n/**\n * Aborts the request.\n *\n * @api public\n */\n\nRequest.prototype.abort = function () {\n  this.cleanup();\n};\n\n/**\n * Aborts pending requests when unloading the window. This is needed to prevent\n * memory leaks (e.g. when using IE) and to ensure that no spurious error is\n * emitted.\n */\n\nRequest.requestsCount = 0;\nRequest.requests = {};\n\nif (typeof document !== 'undefined') {\n  if (typeof attachEvent === 'function') {\n    attachEvent('onunload', unloadHandler);\n  } else if (typeof addEventListener === 'function') {\n    var terminationEvent = 'onpagehide' in self ? 'pagehide' : 'unload';\n    addEventListener(terminationEvent, unloadHandler, false);\n  }\n}\n\nfunction unloadHandler () {\n  for (var i in Request.requests) {\n    if (Request.requests.hasOwnProperty(i)) {\n      Request.requests[i].abort();\n    }\n  }\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/polling-xhr.js\n// module id = 15\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar Transport = require('../transport');\nvar parseqs = require('parseqs');\nvar parser = require('engine.io-parser');\nvar inherit = require('component-inherit');\nvar yeast = require('yeast');\nvar debug = require('debug')('engine.io-client:polling');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Polling;\n\n/**\n * Is XHR2 supported?\n */\n\nvar hasXHR2 = (function () {\n  var XMLHttpRequest = require('xmlhttprequest-ssl');\n  var xhr = new XMLHttpRequest({ xdomain: false });\n  return null != xhr.responseType;\n})();\n\n/**\n * Polling interface.\n *\n * @param {Object} opts\n * @api private\n */\n\nfunction Polling (opts) {\n  var forceBase64 = (opts && opts.forceBase64);\n  if (!hasXHR2 || forceBase64) {\n    this.supportsBinary = false;\n  }\n  Transport.call(this, opts);\n}\n\n/**\n * Inherits from Transport.\n */\n\ninherit(Polling, Transport);\n\n/**\n * Transport name.\n */\n\nPolling.prototype.name = 'polling';\n\n/**\n * Opens the socket (triggers polling). We write a PING message to determine\n * when the transport is open.\n *\n * @api private\n */\n\nPolling.prototype.doOpen = function () {\n  this.poll();\n};\n\n/**\n * Pauses polling.\n *\n * @param {Function} callback upon buffers are flushed and transport is paused\n * @api private\n */\n\nPolling.prototype.pause = function (onPause) {\n  var self = this;\n\n  this.readyState = 'pausing';\n\n  function pause () {\n\n    self.readyState = 'paused';\n    onPause();\n  }\n\n  if (this.polling || !this.writable) {\n    var total = 0;\n\n    if (this.polling) {\n\n      total++;\n      this.once('pollComplete', function () {\n\n        --total || pause();\n      });\n    }\n\n    if (!this.writable) {\n\n      total++;\n      this.once('drain', function () {\n\n        --total || pause();\n      });\n    }\n  } else {\n    pause();\n  }\n};\n\n/**\n * Starts polling cycle.\n *\n * @api public\n */\n\nPolling.prototype.poll = function () {\n\n  this.polling = true;\n  this.doPoll();\n  this.emit('poll');\n};\n\n/**\n * Overloads onData to detect payloads.\n *\n * @api private\n */\n\nPolling.prototype.onData = function (data) {\n  var self = this;\n\n  var callback = function (packet, index, total) {\n    // if its the first message we consider the transport open\n    if ('opening' === self.readyState) {\n      self.onOpen();\n    }\n\n    // if its a close packet, we close the ongoing requests\n    if ('close' === packet.type) {\n      self.onClose();\n      return false;\n    }\n\n    // otherwise bypass onData and handle the message\n    self.onPacket(packet);\n  };\n\n  // decode payload\n  parser.decodePayload(data, this.socket.binaryType, callback);\n\n  // if an event did not trigger closing\n  if ('closed' !== this.readyState) {\n    // if we got data we're not polling\n    this.polling = false;\n    this.emit('pollComplete');\n\n    if ('open' === this.readyState) {\n      this.poll();\n    } else {\n\n    }\n  }\n};\n\n/**\n * For polling, send a close packet.\n *\n * @api private\n */\n\nPolling.prototype.doClose = function () {\n  var self = this;\n\n  function close () {\n\n    self.write([{ type: 'close' }]);\n  }\n\n  if ('open' === this.readyState) {\n\n    close();\n  } else {\n    // in case we're trying to close while\n    // handshaking is in progress (GH-164)\n\n    this.once('open', close);\n  }\n};\n\n/**\n * Writes a packets payload.\n *\n * @param {Array} data packets\n * @param {Function} drain callback\n * @api private\n */\n\nPolling.prototype.write = function (packets) {\n  var self = this;\n  this.writable = false;\n  var callbackfn = function () {\n    self.writable = true;\n    self.emit('drain');\n  };\n\n  parser.encodePayload(packets, this.supportsBinary, function (data) {\n    self.doWrite(data, callbackfn);\n  });\n};\n\n/**\n * Generates uri for connection.\n *\n * @api private\n */\n\nPolling.prototype.uri = function () {\n  var query = this.query || {};\n  var schema = this.secure ? 'https' : 'http';\n  var port = '';\n\n  // cache busting is forced\n  if (false !== this.timestampRequests) {\n    query[this.timestampParam] = yeast();\n  }\n\n  if (!this.supportsBinary && !query.sid) {\n    query.b64 = 1;\n  }\n\n  query = parseqs.encode(query);\n\n  // avoid port if default for schema\n  if (this.port && (('https' === schema && Number(this.port) !== 443) ||\n     ('http' === schema && Number(this.port) !== 80))) {\n    port = ':' + this.port;\n  }\n\n  // prepend ? to query\n  if (query.length) {\n    query = '?' + query;\n  }\n\n  var ipv6 = this.hostname.indexOf(':') !== -1;\n  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/polling.js\n// module id = 16\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar parser = require('engine.io-parser');\nvar Emitter = require('component-emitter');\n\n/**\n * Module exports.\n */\n\nmodule.exports = Transport;\n\n/**\n * Transport abstract constructor.\n *\n * @param {Object} options.\n * @api private\n */\n\nfunction Transport (opts) {\n  this.path = opts.path;\n  this.hostname = opts.hostname;\n  this.port = opts.port;\n  this.secure = opts.secure;\n  this.query = opts.query;\n  this.timestampParam = opts.timestampParam;\n  this.timestampRequests = opts.timestampRequests;\n  this.readyState = '';\n  this.agent = opts.agent || false;\n  this.socket = opts.socket;\n  this.enablesXDR = opts.enablesXDR;\n\n  // SSL options for Node.js client\n  this.pfx = opts.pfx;\n  this.key = opts.key;\n  this.passphrase = opts.passphrase;\n  this.cert = opts.cert;\n  this.ca = opts.ca;\n  this.ciphers = opts.ciphers;\n  this.rejectUnauthorized = opts.rejectUnauthorized;\n  this.forceNode = opts.forceNode;\n\n  // results of ReactNative environment detection\n  this.isReactNative = opts.isReactNative;\n\n  // other options for Node.js client\n  this.extraHeaders = opts.extraHeaders;\n  this.localAddress = opts.localAddress;\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Transport.prototype);\n\n/**\n * Emits an error.\n *\n * @param {String} str\n * @return {Transport} for chaining\n * @api public\n */\n\nTransport.prototype.onError = function (msg, desc) {\n  var err = new Error(msg);\n  err.type = 'TransportError';\n  err.description = desc;\n  this.emit('error', err);\n  return this;\n};\n\n/**\n * Opens the transport.\n *\n * @api public\n */\n\nTransport.prototype.open = function () {\n  if ('closed' === this.readyState || '' === this.readyState) {\n    this.readyState = 'opening';\n    this.doOpen();\n  }\n\n  return this;\n};\n\n/**\n * Closes the transport.\n *\n * @api private\n */\n\nTransport.prototype.close = function () {\n  if ('opening' === this.readyState || 'open' === this.readyState) {\n    this.doClose();\n    this.onClose();\n  }\n\n  return this;\n};\n\n/**\n * Sends multiple packets.\n *\n * @param {Array} packets\n * @api private\n */\n\nTransport.prototype.send = function (packets) {\n  if ('open' === this.readyState) {\n    this.write(packets);\n  } else {\n    throw new Error('Transport not open');\n  }\n};\n\n/**\n * Called upon open\n *\n * @api private\n */\n\nTransport.prototype.onOpen = function () {\n  this.readyState = 'open';\n  this.writable = true;\n  this.emit('open');\n};\n\n/**\n * Called with data.\n *\n * @param {String} data\n * @api private\n */\n\nTransport.prototype.onData = function (data) {\n  var packet = parser.decodePacket(data, this.socket.binaryType);\n  this.onPacket(packet);\n};\n\n/**\n * Called with a decoded packet.\n */\n\nTransport.prototype.onPacket = function (packet) {\n  this.emit('packet', packet);\n};\n\n/**\n * Called upon close.\n *\n * @api private\n */\n\nTransport.prototype.onClose = function () {\n  this.readyState = 'closed';\n  this.emit('close');\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transport.js\n// module id = 17\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar keys = require('./keys');\nvar hasBinary = require('has-binary2');\nvar sliceBuffer = require('arraybuffer.slice');\nvar after = require('after');\nvar utf8 = require('./utf8');\n\nvar base64encoder;\nif (typeof ArrayBuffer !== 'undefined') {\n  base64encoder = require('base64-arraybuffer');\n}\n\n/**\n * Check if we are running an android browser. That requires us to use\n * ArrayBuffer with polling transports...\n *\n * http://ghinda.net/jpeg-blob-ajax-android/\n */\n\nvar isAndroid = typeof navigator !== 'undefined' && /Android/i.test(navigator.userAgent);\n\n/**\n * Check if we are running in PhantomJS.\n * Uploading a Blob with PhantomJS does not work correctly, as reported here:\n * https://github.com/ariya/phantomjs/issues/11395\n * @type boolean\n */\nvar isPhantomJS = typeof navigator !== 'undefined' && /PhantomJS/i.test(navigator.userAgent);\n\n/**\n * When true, avoids using Blobs to encode payloads.\n * @type boolean\n */\nvar dontSendBlobs = isAndroid || isPhantomJS;\n\n/**\n * Current protocol version.\n */\n\nexports.protocol = 3;\n\n/**\n * Packet types.\n */\n\nvar packets = exports.packets = {\n    open:     0    // non-ws\n  , close:    1    // non-ws\n  , ping:     2\n  , pong:     3\n  , message:  4\n  , upgrade:  5\n  , noop:     6\n};\n\nvar packetslist = keys(packets);\n\n/**\n * Premade error packet.\n */\n\nvar err = { type: 'error', data: 'parser error' };\n\n/**\n * Create a blob api even for blob builder when vendor prefixes exist\n */\n\nvar Blob = require('blob');\n\n/**\n * Encodes a packet.\n *\n *     <packet type id> [ <data> ]\n *\n * Example:\n *\n *     5hello world\n *     3\n *     4\n *\n * Binary is encoded in an identical principle\n *\n * @api private\n */\n\nexports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {\n  if (typeof supportsBinary === 'function') {\n    callback = supportsBinary;\n    supportsBinary = false;\n  }\n\n  if (typeof utf8encode === 'function') {\n    callback = utf8encode;\n    utf8encode = null;\n  }\n\n  var data = (packet.data === undefined)\n    ? undefined\n    : packet.data.buffer || packet.data;\n\n  if (typeof ArrayBuffer !== 'undefined' && data instanceof ArrayBuffer) {\n    return encodeArrayBuffer(packet, supportsBinary, callback);\n  } else if (typeof Blob !== 'undefined' && data instanceof Blob) {\n    return encodeBlob(packet, supportsBinary, callback);\n  }\n\n  // might be an object with { base64: true, data: dataAsBase64String }\n  if (data && data.base64) {\n    return encodeBase64Object(packet, callback);\n  }\n\n  // Sending data as a utf-8 string\n  var encoded = packets[packet.type];\n\n  // data fragment is optional\n  if (undefined !== packet.data) {\n    encoded += utf8encode ? utf8.encode(String(packet.data), { strict: false }) : String(packet.data);\n  }\n\n  return callback('' + encoded);\n\n};\n\nfunction encodeBase64Object(packet, callback) {\n  // packet data is an object { base64: true, data: dataAsBase64String }\n  var message = 'b' + exports.packets[packet.type] + packet.data.data;\n  return callback(message);\n}\n\n/**\n * Encode packet helpers for binary types\n */\n\nfunction encodeArrayBuffer(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  var data = packet.data;\n  var contentArray = new Uint8Array(data);\n  var resultBuffer = new Uint8Array(1 + data.byteLength);\n\n  resultBuffer[0] = packets[packet.type];\n  for (var i = 0; i < contentArray.length; i++) {\n    resultBuffer[i+1] = contentArray[i];\n  }\n\n  return callback(resultBuffer.buffer);\n}\n\nfunction encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  var fr = new FileReader();\n  fr.onload = function() {\n    exports.encodePacket({ type: packet.type, data: fr.result }, supportsBinary, true, callback);\n  };\n  return fr.readAsArrayBuffer(packet.data);\n}\n\nfunction encodeBlob(packet, supportsBinary, callback) {\n  if (!supportsBinary) {\n    return exports.encodeBase64Packet(packet, callback);\n  }\n\n  if (dontSendBlobs) {\n    return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);\n  }\n\n  var length = new Uint8Array(1);\n  length[0] = packets[packet.type];\n  var blob = new Blob([length.buffer, packet.data]);\n\n  return callback(blob);\n}\n\n/**\n * Encodes a packet with binary data in a base64 string\n *\n * @param {Object} packet, has `type` and `data`\n * @return {String} base64 encoded message\n */\n\nexports.encodeBase64Packet = function(packet, callback) {\n  var message = 'b' + exports.packets[packet.type];\n  if (typeof Blob !== 'undefined' && packet.data instanceof Blob) {\n    var fr = new FileReader();\n    fr.onload = function() {\n      var b64 = fr.result.split(',')[1];\n      callback(message + b64);\n    };\n    return fr.readAsDataURL(packet.data);\n  }\n\n  var b64data;\n  try {\n    b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));\n  } catch (e) {\n    // iPhone Safari doesn't let you apply with typed arrays\n    var typed = new Uint8Array(packet.data);\n    var basic = new Array(typed.length);\n    for (var i = 0; i < typed.length; i++) {\n      basic[i] = typed[i];\n    }\n    b64data = String.fromCharCode.apply(null, basic);\n  }\n  message += btoa(b64data);\n  return callback(message);\n};\n\n/**\n * Decodes a packet. Changes format to Blob if requested.\n *\n * @return {Object} with `type` and `data` (if any)\n * @api private\n */\n\nexports.decodePacket = function (data, binaryType, utf8decode) {\n  if (data === undefined) {\n    return err;\n  }\n  // String data\n  if (typeof data === 'string') {\n    if (data.charAt(0) === 'b') {\n      return exports.decodeBase64Packet(data.substr(1), binaryType);\n    }\n\n    if (utf8decode) {\n      data = tryDecode(data);\n      if (data === false) {\n        return err;\n      }\n    }\n    var type = data.charAt(0);\n\n    if (Number(type) != type || !packetslist[type]) {\n      return err;\n    }\n\n    if (data.length > 1) {\n      return { type: packetslist[type], data: data.substring(1) };\n    } else {\n      return { type: packetslist[type] };\n    }\n  }\n\n  var asArray = new Uint8Array(data);\n  var type = asArray[0];\n  var rest = sliceBuffer(data, 1);\n  if (Blob && binaryType === 'blob') {\n    rest = new Blob([rest]);\n  }\n  return { type: packetslist[type], data: rest };\n};\n\nfunction tryDecode(data) {\n  try {\n    data = utf8.decode(data, { strict: false });\n  } catch (e) {\n    return false;\n  }\n  return data;\n}\n\n/**\n * Decodes a packet encoded in a base64 string\n *\n * @param {String} base64 encoded message\n * @return {Object} with `type` and `data` (if any)\n */\n\nexports.decodeBase64Packet = function(msg, binaryType) {\n  var type = packetslist[msg.charAt(0)];\n  if (!base64encoder) {\n    return { type: type, data: { base64: true, data: msg.substr(1) } };\n  }\n\n  var data = base64encoder.decode(msg.substr(1));\n\n  if (binaryType === 'blob' && Blob) {\n    data = new Blob([data]);\n  }\n\n  return { type: type, data: data };\n};\n\n/**\n * Encodes multiple messages (payload).\n *\n *     <length>:data\n *\n * Example:\n *\n *     11:hello world2:hi\n *\n * If any contents are binary, they will be encoded as base64 strings. Base64\n * encoded strings are marked with a b before the length specifier\n *\n * @param {Array} packets\n * @api private\n */\n\nexports.encodePayload = function (packets, supportsBinary, callback) {\n  if (typeof supportsBinary === 'function') {\n    callback = supportsBinary;\n    supportsBinary = null;\n  }\n\n  var isBinary = hasBinary(packets);\n\n  if (supportsBinary && isBinary) {\n    if (Blob && !dontSendBlobs) {\n      return exports.encodePayloadAsBlob(packets, callback);\n    }\n\n    return exports.encodePayloadAsArrayBuffer(packets, callback);\n  }\n\n  if (!packets.length) {\n    return callback('0:');\n  }\n\n  function setLengthHeader(message) {\n    return message.length + ':' + message;\n  }\n\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, !isBinary ? false : supportsBinary, false, function(message) {\n      doneCallback(null, setLengthHeader(message));\n    });\n  }\n\n  map(packets, encodeOne, function(err, results) {\n    return callback(results.join(''));\n  });\n};\n\n/**\n * Async array map using after\n */\n\nfunction map(ary, each, done) {\n  var result = new Array(ary.length);\n  var next = after(ary.length, done);\n\n  var eachWithIndex = function(i, el, cb) {\n    each(el, function(error, msg) {\n      result[i] = msg;\n      cb(error, result);\n    });\n  };\n\n  for (var i = 0; i < ary.length; i++) {\n    eachWithIndex(i, ary[i], next);\n  }\n}\n\n/*\n * Decodes data when a payload is maybe expected. Possible binary contents are\n * decoded from their base64 representation\n *\n * @param {String} data, callback method\n * @api public\n */\n\nexports.decodePayload = function (data, binaryType, callback) {\n  if (typeof data !== 'string') {\n    return exports.decodePayloadAsBinary(data, binaryType, callback);\n  }\n\n  if (typeof binaryType === 'function') {\n    callback = binaryType;\n    binaryType = null;\n  }\n\n  var packet;\n  if (data === '') {\n    // parser error - ignoring payload\n    return callback(err, 0, 1);\n  }\n\n  var length = '', n, msg;\n\n  for (var i = 0, l = data.length; i < l; i++) {\n    var chr = data.charAt(i);\n\n    if (chr !== ':') {\n      length += chr;\n      continue;\n    }\n\n    if (length === '' || (length != (n = Number(length)))) {\n      // parser error - ignoring payload\n      return callback(err, 0, 1);\n    }\n\n    msg = data.substr(i + 1, n);\n\n    if (length != msg.length) {\n      // parser error - ignoring payload\n      return callback(err, 0, 1);\n    }\n\n    if (msg.length) {\n      packet = exports.decodePacket(msg, binaryType, false);\n\n      if (err.type === packet.type && err.data === packet.data) {\n        // parser error in individual packet - ignoring payload\n        return callback(err, 0, 1);\n      }\n\n      var ret = callback(packet, i + n, l);\n      if (false === ret) return;\n    }\n\n    // advance cursor\n    i += n;\n    length = '';\n  }\n\n  if (length !== '') {\n    // parser error - ignoring payload\n    return callback(err, 0, 1);\n  }\n\n};\n\n/**\n * Encodes multiple messages (payload) as binary.\n *\n * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number\n * 255><data>\n *\n * Example:\n * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers\n *\n * @param {Array} packets\n * @return {ArrayBuffer} encoded payload\n * @api private\n */\n\nexports.encodePayloadAsArrayBuffer = function(packets, callback) {\n  if (!packets.length) {\n    return callback(new ArrayBuffer(0));\n  }\n\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, true, true, function(data) {\n      return doneCallback(null, data);\n    });\n  }\n\n  map(packets, encodeOne, function(err, encodedPackets) {\n    var totalLength = encodedPackets.reduce(function(acc, p) {\n      var len;\n      if (typeof p === 'string'){\n        len = p.length;\n      } else {\n        len = p.byteLength;\n      }\n      return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2\n    }, 0);\n\n    var resultArray = new Uint8Array(totalLength);\n\n    var bufferIndex = 0;\n    encodedPackets.forEach(function(p) {\n      var isString = typeof p === 'string';\n      var ab = p;\n      if (isString) {\n        var view = new Uint8Array(p.length);\n        for (var i = 0; i < p.length; i++) {\n          view[i] = p.charCodeAt(i);\n        }\n        ab = view.buffer;\n      }\n\n      if (isString) { // not true binary\n        resultArray[bufferIndex++] = 0;\n      } else { // true binary\n        resultArray[bufferIndex++] = 1;\n      }\n\n      var lenStr = ab.byteLength.toString();\n      for (var i = 0; i < lenStr.length; i++) {\n        resultArray[bufferIndex++] = parseInt(lenStr[i]);\n      }\n      resultArray[bufferIndex++] = 255;\n\n      var view = new Uint8Array(ab);\n      for (var i = 0; i < view.length; i++) {\n        resultArray[bufferIndex++] = view[i];\n      }\n    });\n\n    return callback(resultArray.buffer);\n  });\n};\n\n/**\n * Encode as Blob\n */\n\nexports.encodePayloadAsBlob = function(packets, callback) {\n  function encodeOne(packet, doneCallback) {\n    exports.encodePacket(packet, true, true, function(encoded) {\n      var binaryIdentifier = new Uint8Array(1);\n      binaryIdentifier[0] = 1;\n      if (typeof encoded === 'string') {\n        var view = new Uint8Array(encoded.length);\n        for (var i = 0; i < encoded.length; i++) {\n          view[i] = encoded.charCodeAt(i);\n        }\n        encoded = view.buffer;\n        binaryIdentifier[0] = 0;\n      }\n\n      var len = (encoded instanceof ArrayBuffer)\n        ? encoded.byteLength\n        : encoded.size;\n\n      var lenStr = len.toString();\n      var lengthAry = new Uint8Array(lenStr.length + 1);\n      for (var i = 0; i < lenStr.length; i++) {\n        lengthAry[i] = parseInt(lenStr[i]);\n      }\n      lengthAry[lenStr.length] = 255;\n\n      if (Blob) {\n        var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);\n        doneCallback(null, blob);\n      }\n    });\n  }\n\n  map(packets, encodeOne, function(err, results) {\n    return callback(new Blob(results));\n  });\n};\n\n/*\n * Decodes data when a payload is maybe expected. Strings are decoded by\n * interpreting each byte as a key code for entries marked to start with 0. See\n * description of encodePayloadAsBinary\n *\n * @param {ArrayBuffer} data, callback method\n * @api public\n */\n\nexports.decodePayloadAsBinary = function (data, binaryType, callback) {\n  if (typeof binaryType === 'function') {\n    callback = binaryType;\n    binaryType = null;\n  }\n\n  var bufferTail = data;\n  var buffers = [];\n\n  while (bufferTail.byteLength > 0) {\n    var tailArray = new Uint8Array(bufferTail);\n    var isString = tailArray[0] === 0;\n    var msgLength = '';\n\n    for (var i = 1; ; i++) {\n      if (tailArray[i] === 255) break;\n\n      // 310 = char length of Number.MAX_VALUE\n      if (msgLength.length > 310) {\n        return callback(err, 0, 1);\n      }\n\n      msgLength += tailArray[i];\n    }\n\n    bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);\n    msgLength = parseInt(msgLength);\n\n    var msg = sliceBuffer(bufferTail, 0, msgLength);\n    if (isString) {\n      try {\n        msg = String.fromCharCode.apply(null, new Uint8Array(msg));\n      } catch (e) {\n        // iPhone Safari doesn't let you apply to typed arrays\n        var typed = new Uint8Array(msg);\n        msg = '';\n        for (var i = 0; i < typed.length; i++) {\n          msg += String.fromCharCode(typed[i]);\n        }\n      }\n    }\n\n    buffers.push(msg);\n    bufferTail = sliceBuffer(bufferTail, msgLength);\n  }\n\n  var total = buffers.length;\n  buffers.forEach(function(buffer, i) {\n    callback(exports.decodePacket(buffer, binaryType, true), i, total);\n  });\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-parser/lib/browser.js\n// module id = 18\n// module chunks = 0","\n/**\n * Gets the keys for an object.\n *\n * @return {Array} keys\n * @api private\n */\n\nmodule.exports = Object.keys || function keys (obj){\n  var arr = [];\n  var has = Object.prototype.hasOwnProperty;\n\n  for (var i in obj) {\n    if (has.call(obj, i)) {\n      arr.push(i);\n    }\n  }\n  return arr;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-parser/lib/keys.js\n// module id = 19\n// module chunks = 0","/* global Blob File */\n\n/*\n * Module requirements.\n */\n\nvar isArray = require('isarray');\n\nvar toString = Object.prototype.toString;\nvar withNativeBlob = typeof Blob === 'function' ||\n                        typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]';\nvar withNativeFile = typeof File === 'function' ||\n                        typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]';\n\n/**\n * Module exports.\n */\n\nmodule.exports = hasBinary;\n\n/**\n * Checks for binary data.\n *\n * Supports Buffer, ArrayBuffer, Blob and File.\n *\n * @param {Object} anything\n * @api public\n */\n\nfunction hasBinary (obj) {\n  if (!obj || typeof obj !== 'object') {\n    return false;\n  }\n\n  if (isArray(obj)) {\n    for (var i = 0, l = obj.length; i < l; i++) {\n      if (hasBinary(obj[i])) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  if ((typeof Buffer === 'function' && Buffer.isBuffer && Buffer.isBuffer(obj)) ||\n    (typeof ArrayBuffer === 'function' && obj instanceof ArrayBuffer) ||\n    (withNativeBlob && obj instanceof Blob) ||\n    (withNativeFile && obj instanceof File)\n  ) {\n    return true;\n  }\n\n  // see: https://github.com/Automattic/has-binary/pull/4\n  if (obj.toJSON && typeof obj.toJSON === 'function' && arguments.length === 1) {\n    return hasBinary(obj.toJSON(), true);\n  }\n\n  for (var key in obj) {\n    if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {\n      return true;\n    }\n  }\n\n  return false;\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/has-binary2/index.js\n// module id = 20\n// module chunks = 0","/**\n * An abstraction for slicing an arraybuffer even when\n * ArrayBuffer.prototype.slice is not supported\n *\n * @api public\n */\n\nmodule.exports = function(arraybuffer, start, end) {\n  var bytes = arraybuffer.byteLength;\n  start = start || 0;\n  end = end || bytes;\n\n  if (arraybuffer.slice) { return arraybuffer.slice(start, end); }\n\n  if (start < 0) { start += bytes; }\n  if (end < 0) { end += bytes; }\n  if (end > bytes) { end = bytes; }\n\n  if (start >= bytes || start >= end || bytes === 0) {\n    return new ArrayBuffer(0);\n  }\n\n  var abv = new Uint8Array(arraybuffer);\n  var result = new Uint8Array(end - start);\n  for (var i = start, ii = 0; i < end; i++, ii++) {\n    result[ii] = abv[i];\n  }\n  return result.buffer;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/arraybuffer.slice/index.js\n// module id = 21\n// module chunks = 0","module.exports = after\n\nfunction after(count, callback, err_cb) {\n    var bail = false\n    err_cb = err_cb || noop\n    proxy.count = count\n\n    return (count === 0) ? callback() : proxy\n\n    function proxy(err, result) {\n        if (proxy.count <= 0) {\n            throw new Error('after called too many times')\n        }\n        --proxy.count\n\n        // after first error, rest are passed to err_cb\n        if (err) {\n            bail = true\n            callback(err)\n            // future error callbacks will go to error handler\n            callback = err_cb\n        } else if (proxy.count === 0 && !bail) {\n            callback(null, result)\n        }\n    }\n}\n\nfunction noop() {}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/after/index.js\n// module id = 22\n// module chunks = 0","/*! https://mths.be/utf8js v2.1.2 by @mathias */\n\nvar stringFromCharCode = String.fromCharCode;\n\n// Taken from https://mths.be/punycode\nfunction ucs2decode(string) {\n\tvar output = [];\n\tvar counter = 0;\n\tvar length = string.length;\n\tvar value;\n\tvar extra;\n\twhile (counter < length) {\n\t\tvalue = string.charCodeAt(counter++);\n\t\tif (value >= 0xD800 && value <= 0xDBFF && counter < length) {\n\t\t\t// high surrogate, and there is a next character\n\t\t\textra = string.charCodeAt(counter++);\n\t\t\tif ((extra & 0xFC00) == 0xDC00) { // low surrogate\n\t\t\t\toutput.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);\n\t\t\t} else {\n\t\t\t\t// unmatched surrogate; only append this code unit, in case the next\n\t\t\t\t// code unit is the high surrogate of a surrogate pair\n\t\t\t\toutput.push(value);\n\t\t\t\tcounter--;\n\t\t\t}\n\t\t} else {\n\t\t\toutput.push(value);\n\t\t}\n\t}\n\treturn output;\n}\n\n// Taken from https://mths.be/punycode\nfunction ucs2encode(array) {\n\tvar length = array.length;\n\tvar index = -1;\n\tvar value;\n\tvar output = '';\n\twhile (++index < length) {\n\t\tvalue = array[index];\n\t\tif (value > 0xFFFF) {\n\t\t\tvalue -= 0x10000;\n\t\t\toutput += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);\n\t\t\tvalue = 0xDC00 | value & 0x3FF;\n\t\t}\n\t\toutput += stringFromCharCode(value);\n\t}\n\treturn output;\n}\n\nfunction checkScalarValue(codePoint, strict) {\n\tif (codePoint >= 0xD800 && codePoint <= 0xDFFF) {\n\t\tif (strict) {\n\t\t\tthrow Error(\n\t\t\t\t'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +\n\t\t\t\t' is not a scalar value'\n\t\t\t);\n\t\t}\n\t\treturn false;\n\t}\n\treturn true;\n}\n/*--------------------------------------------------------------------------*/\n\nfunction createByte(codePoint, shift) {\n\treturn stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);\n}\n\nfunction encodeCodePoint(codePoint, strict) {\n\tif ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence\n\t\treturn stringFromCharCode(codePoint);\n\t}\n\tvar symbol = '';\n\tif ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence\n\t\tsymbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);\n\t}\n\telse if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence\n\t\tif (!checkScalarValue(codePoint, strict)) {\n\t\t\tcodePoint = 0xFFFD;\n\t\t}\n\t\tsymbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);\n\t\tsymbol += createByte(codePoint, 6);\n\t}\n\telse if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence\n\t\tsymbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);\n\t\tsymbol += createByte(codePoint, 12);\n\t\tsymbol += createByte(codePoint, 6);\n\t}\n\tsymbol += stringFromCharCode((codePoint & 0x3F) | 0x80);\n\treturn symbol;\n}\n\nfunction utf8encode(string, opts) {\n\topts = opts || {};\n\tvar strict = false !== opts.strict;\n\n\tvar codePoints = ucs2decode(string);\n\tvar length = codePoints.length;\n\tvar index = -1;\n\tvar codePoint;\n\tvar byteString = '';\n\twhile (++index < length) {\n\t\tcodePoint = codePoints[index];\n\t\tbyteString += encodeCodePoint(codePoint, strict);\n\t}\n\treturn byteString;\n}\n\n/*--------------------------------------------------------------------------*/\n\nfunction readContinuationByte() {\n\tif (byteIndex >= byteCount) {\n\t\tthrow Error('Invalid byte index');\n\t}\n\n\tvar continuationByte = byteArray[byteIndex] & 0xFF;\n\tbyteIndex++;\n\n\tif ((continuationByte & 0xC0) == 0x80) {\n\t\treturn continuationByte & 0x3F;\n\t}\n\n\t// If we end up here, it’s not a continuation byte\n\tthrow Error('Invalid continuation byte');\n}\n\nfunction decodeSymbol(strict) {\n\tvar byte1;\n\tvar byte2;\n\tvar byte3;\n\tvar byte4;\n\tvar codePoint;\n\n\tif (byteIndex > byteCount) {\n\t\tthrow Error('Invalid byte index');\n\t}\n\n\tif (byteIndex == byteCount) {\n\t\treturn false;\n\t}\n\n\t// Read first byte\n\tbyte1 = byteArray[byteIndex] & 0xFF;\n\tbyteIndex++;\n\n\t// 1-byte sequence (no continuation bytes)\n\tif ((byte1 & 0x80) == 0) {\n\t\treturn byte1;\n\t}\n\n\t// 2-byte sequence\n\tif ((byte1 & 0xE0) == 0xC0) {\n\t\tbyte2 = readContinuationByte();\n\t\tcodePoint = ((byte1 & 0x1F) << 6) | byte2;\n\t\tif (codePoint >= 0x80) {\n\t\t\treturn codePoint;\n\t\t} else {\n\t\t\tthrow Error('Invalid continuation byte');\n\t\t}\n\t}\n\n\t// 3-byte sequence (may include unpaired surrogates)\n\tif ((byte1 & 0xF0) == 0xE0) {\n\t\tbyte2 = readContinuationByte();\n\t\tbyte3 = readContinuationByte();\n\t\tcodePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;\n\t\tif (codePoint >= 0x0800) {\n\t\t\treturn checkScalarValue(codePoint, strict) ? codePoint : 0xFFFD;\n\t\t} else {\n\t\t\tthrow Error('Invalid continuation byte');\n\t\t}\n\t}\n\n\t// 4-byte sequence\n\tif ((byte1 & 0xF8) == 0xF0) {\n\t\tbyte2 = readContinuationByte();\n\t\tbyte3 = readContinuationByte();\n\t\tbyte4 = readContinuationByte();\n\t\tcodePoint = ((byte1 & 0x07) << 0x12) | (byte2 << 0x0C) |\n\t\t\t(byte3 << 0x06) | byte4;\n\t\tif (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {\n\t\t\treturn codePoint;\n\t\t}\n\t}\n\n\tthrow Error('Invalid UTF-8 detected');\n}\n\nvar byteArray;\nvar byteCount;\nvar byteIndex;\nfunction utf8decode(byteString, opts) {\n\topts = opts || {};\n\tvar strict = false !== opts.strict;\n\n\tbyteArray = ucs2decode(byteString);\n\tbyteCount = byteArray.length;\n\tbyteIndex = 0;\n\tvar codePoints = [];\n\tvar tmp;\n\twhile ((tmp = decodeSymbol(strict)) !== false) {\n\t\tcodePoints.push(tmp);\n\t}\n\treturn ucs2encode(codePoints);\n}\n\nmodule.exports = {\n\tversion: '2.1.2',\n\tencode: utf8encode,\n\tdecode: utf8decode\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-parser/lib/utf8.js\n// module id = 23\n// module chunks = 0","/*\n * base64-arraybuffer\n * https://github.com/niklasvh/base64-arraybuffer\n *\n * Copyright (c) 2012 Niklas von Hertzen\n * Licensed under the MIT license.\n */\n(function(){\n  \"use strict\";\n\n  var chars = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\";\n\n  // Use a lookup table to find the index.\n  var lookup = new Uint8Array(256);\n  for (var i = 0; i < chars.length; i++) {\n    lookup[chars.charCodeAt(i)] = i;\n  }\n\n  exports.encode = function(arraybuffer) {\n    var bytes = new Uint8Array(arraybuffer),\n    i, len = bytes.length, base64 = \"\";\n\n    for (i = 0; i < len; i+=3) {\n      base64 += chars[bytes[i] >> 2];\n      base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n      base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n      base64 += chars[bytes[i + 2] & 63];\n    }\n\n    if ((len % 3) === 2) {\n      base64 = base64.substring(0, base64.length - 1) + \"=\";\n    } else if (len % 3 === 1) {\n      base64 = base64.substring(0, base64.length - 2) + \"==\";\n    }\n\n    return base64;\n  };\n\n  exports.decode =  function(base64) {\n    var bufferLength = base64.length * 0.75,\n    len = base64.length, i, p = 0,\n    encoded1, encoded2, encoded3, encoded4;\n\n    if (base64[base64.length - 1] === \"=\") {\n      bufferLength--;\n      if (base64[base64.length - 2] === \"=\") {\n        bufferLength--;\n      }\n    }\n\n    var arraybuffer = new ArrayBuffer(bufferLength),\n    bytes = new Uint8Array(arraybuffer);\n\n    for (i = 0; i < len; i+=4) {\n      encoded1 = lookup[base64.charCodeAt(i)];\n      encoded2 = lookup[base64.charCodeAt(i+1)];\n      encoded3 = lookup[base64.charCodeAt(i+2)];\n      encoded4 = lookup[base64.charCodeAt(i+3)];\n\n      bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n      bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n      bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n    }\n\n    return arraybuffer;\n  };\n})();\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/base64-arraybuffer/lib/base64-arraybuffer.js\n// module id = 24\n// module chunks = 0","/**\r\n * Create a blob builder even when vendor prefixes exist\r\n */\r\n\r\nvar BlobBuilder = typeof BlobBuilder !== 'undefined' ? BlobBuilder :\r\n  typeof WebKitBlobBuilder !== 'undefined' ? WebKitBlobBuilder :\r\n  typeof MSBlobBuilder !== 'undefined' ? MSBlobBuilder :\r\n  typeof MozBlobBuilder !== 'undefined' ? MozBlobBuilder : \r\n  false;\r\n\r\n/**\r\n * Check if Blob constructor is supported\r\n */\r\n\r\nvar blobSupported = (function() {\r\n  try {\r\n    var a = new Blob(['hi']);\r\n    return a.size === 2;\r\n  } catch(e) {\r\n    return false;\r\n  }\r\n})();\r\n\r\n/**\r\n * Check if Blob constructor supports ArrayBufferViews\r\n * Fails in Safari 6, so we need to map to ArrayBuffers there.\r\n */\r\n\r\nvar blobSupportsArrayBufferView = blobSupported && (function() {\r\n  try {\r\n    var b = new Blob([new Uint8Array([1,2])]);\r\n    return b.size === 2;\r\n  } catch(e) {\r\n    return false;\r\n  }\r\n})();\r\n\r\n/**\r\n * Check if BlobBuilder is supported\r\n */\r\n\r\nvar blobBuilderSupported = BlobBuilder\r\n  && BlobBuilder.prototype.append\r\n  && BlobBuilder.prototype.getBlob;\r\n\r\n/**\r\n * Helper function that maps ArrayBufferViews to ArrayBuffers\r\n * Used by BlobBuilder constructor and old browsers that didn't\r\n * support it in the Blob constructor.\r\n */\r\n\r\nfunction mapArrayBufferViews(ary) {\r\n  return ary.map(function(chunk) {\r\n    if (chunk.buffer instanceof ArrayBuffer) {\r\n      var buf = chunk.buffer;\r\n\r\n      // if this is a subarray, make a copy so we only\r\n      // include the subarray region from the underlying buffer\r\n      if (chunk.byteLength !== buf.byteLength) {\r\n        var copy = new Uint8Array(chunk.byteLength);\r\n        copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));\r\n        buf = copy.buffer;\r\n      }\r\n\r\n      return buf;\r\n    }\r\n\r\n    return chunk;\r\n  });\r\n}\r\n\r\nfunction BlobBuilderConstructor(ary, options) {\r\n  options = options || {};\r\n\r\n  var bb = new BlobBuilder();\r\n  mapArrayBufferViews(ary).forEach(function(part) {\r\n    bb.append(part);\r\n  });\r\n\r\n  return (options.type) ? bb.getBlob(options.type) : bb.getBlob();\r\n};\r\n\r\nfunction BlobConstructor(ary, options) {\r\n  return new Blob(mapArrayBufferViews(ary), options || {});\r\n};\r\n\r\nif (typeof Blob !== 'undefined') {\r\n  BlobBuilderConstructor.prototype = Blob.prototype;\r\n  BlobConstructor.prototype = Blob.prototype;\r\n}\r\n\r\nmodule.exports = (function() {\r\n  if (blobSupported) {\r\n    return blobSupportsArrayBufferView ? Blob : BlobConstructor;\r\n  } else if (blobBuilderSupported) {\r\n    return BlobBuilderConstructor;\r\n  } else {\r\n    return undefined;\r\n  }\r\n})();\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/blob/index.js\n// module id = 25\n// module chunks = 0","/**\r\n * Compiles a querystring\r\n * Returns string representation of the object\r\n *\r\n * @param {Object}\r\n * @api private\r\n */\r\n\r\nexports.encode = function (obj) {\r\n  var str = '';\r\n\r\n  for (var i in obj) {\r\n    if (obj.hasOwnProperty(i)) {\r\n      if (str.length) str += '&';\r\n      str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);\r\n    }\r\n  }\r\n\r\n  return str;\r\n};\r\n\r\n/**\r\n * Parses a simple querystring into an object\r\n *\r\n * @param {String} qs\r\n * @api private\r\n */\r\n\r\nexports.decode = function(qs){\r\n  var qry = {};\r\n  var pairs = qs.split('&');\r\n  for (var i = 0, l = pairs.length; i < l; i++) {\r\n    var pair = pairs[i].split('=');\r\n    qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);\r\n  }\r\n  return qry;\r\n};\r\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/parseqs/index.js\n// module id = 26\n// module chunks = 0","\nmodule.exports = function(a, b){\n  var fn = function(){};\n  fn.prototype = b.prototype;\n  a.prototype = new fn;\n  a.prototype.constructor = a;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/component-inherit/index.js\n// module id = 27\n// module chunks = 0","'use strict';\n\nvar alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('')\n  , length = 64\n  , map = {}\n  , seed = 0\n  , i = 0\n  , prev;\n\n/**\n * Return a string representing the specified number.\n *\n * @param {Number} num The number to convert.\n * @returns {String} The string representation of the number.\n * @api public\n */\nfunction encode(num) {\n  var encoded = '';\n\n  do {\n    encoded = alphabet[num % length] + encoded;\n    num = Math.floor(num / length);\n  } while (num > 0);\n\n  return encoded;\n}\n\n/**\n * Return the integer value specified by the given string.\n *\n * @param {String} str The string to convert.\n * @returns {Number} The integer value represented by the string.\n * @api public\n */\nfunction decode(str) {\n  var decoded = 0;\n\n  for (i = 0; i < str.length; i++) {\n    decoded = decoded * length + map[str.charAt(i)];\n  }\n\n  return decoded;\n}\n\n/**\n * Yeast: A tiny growing id generator.\n *\n * @returns {String} A unique id.\n * @api public\n */\nfunction yeast() {\n  var now = encode(+new Date());\n\n  if (now !== prev) return seed = 0, prev = now;\n  return now +'.'+ encode(seed++);\n}\n\n//\n// Map each character to its index.\n//\nfor (; i < length; i++) map[alphabet[i]] = i;\n\n//\n// Expose the `yeast`, `encode` and `decode` functions.\n//\nyeast.encode = encode;\nyeast.decode = decode;\nmodule.exports = yeast;\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/yeast/index.js\n// module id = 28\n// module chunks = 0","/**\n * Module requirements.\n */\n\nvar Polling = require('./polling');\nvar inherit = require('component-inherit');\n\n/**\n * Module exports.\n */\n\nmodule.exports = JSONPPolling;\n\n/**\n * Cached regular expressions.\n */\n\nvar rNewline = /\\n/g;\nvar rEscapedNewline = /\\\\n/g;\n\n/**\n * Global JSONP callbacks.\n */\n\nvar callbacks;\n\n/**\n * Noop.\n */\n\nfunction empty () { }\n\n/**\n * Until https://github.com/tc39/proposal-global is shipped.\n */\nfunction glob () {\n  return typeof self !== 'undefined' ? self\n      : typeof window !== 'undefined' ? window\n      : typeof global !== 'undefined' ? global : {};\n}\n\n/**\n * JSONP Polling constructor.\n *\n * @param {Object} opts.\n * @api public\n */\n\nfunction JSONPPolling (opts) {\n  Polling.call(this, opts);\n\n  this.query = this.query || {};\n\n  // define global callbacks array if not present\n  // we do this here (lazily) to avoid unneeded global pollution\n  if (!callbacks) {\n    // we need to consider multiple engines in the same page\n    var global = glob();\n    callbacks = global.___eio = (global.___eio || []);\n  }\n\n  // callback identifier\n  this.index = callbacks.length;\n\n  // add callback to jsonp global\n  var self = this;\n  callbacks.push(function (msg) {\n    self.onData(msg);\n  });\n\n  // append to query string\n  this.query.j = this.index;\n\n  // prevent spurious errors from being emitted when the window is unloaded\n  if (typeof addEventListener === 'function') {\n    addEventListener('beforeunload', function () {\n      if (self.script) self.script.onerror = empty;\n    }, false);\n  }\n}\n\n/**\n * Inherits from Polling.\n */\n\ninherit(JSONPPolling, Polling);\n\n/*\n * JSONP only supports binary as base64 encoded strings\n */\n\nJSONPPolling.prototype.supportsBinary = false;\n\n/**\n * Closes the socket.\n *\n * @api private\n */\n\nJSONPPolling.prototype.doClose = function () {\n  if (this.script) {\n    this.script.parentNode.removeChild(this.script);\n    this.script = null;\n  }\n\n  if (this.form) {\n    this.form.parentNode.removeChild(this.form);\n    this.form = null;\n    this.iframe = null;\n  }\n\n  Polling.prototype.doClose.call(this);\n};\n\n/**\n * Starts a poll cycle.\n *\n * @api private\n */\n\nJSONPPolling.prototype.doPoll = function () {\n  var self = this;\n  var script = document.createElement('script');\n\n  if (this.script) {\n    this.script.parentNode.removeChild(this.script);\n    this.script = null;\n  }\n\n  script.async = true;\n  script.src = this.uri();\n  script.onerror = function (e) {\n    self.onError('jsonp poll error', e);\n  };\n\n  var insertAt = document.getElementsByTagName('script')[0];\n  if (insertAt) {\n    insertAt.parentNode.insertBefore(script, insertAt);\n  } else {\n    (document.head || document.body).appendChild(script);\n  }\n  this.script = script;\n\n  var isUAgecko = 'undefined' !== typeof navigator && /gecko/i.test(navigator.userAgent);\n\n  if (isUAgecko) {\n    setTimeout(function () {\n      var iframe = document.createElement('iframe');\n      document.body.appendChild(iframe);\n      document.body.removeChild(iframe);\n    }, 100);\n  }\n};\n\n/**\n * Writes with a hidden iframe.\n *\n * @param {String} data to send\n * @param {Function} called upon flush.\n * @api private\n */\n\nJSONPPolling.prototype.doWrite = function (data, fn) {\n  var self = this;\n\n  if (!this.form) {\n    var form = document.createElement('form');\n    var area = document.createElement('textarea');\n    var id = this.iframeId = 'eio_iframe_' + this.index;\n    var iframe;\n\n    form.className = 'socketio';\n    form.style.position = 'absolute';\n    form.style.top = '-1000px';\n    form.style.left = '-1000px';\n    form.target = id;\n    form.method = 'POST';\n    form.setAttribute('accept-charset', 'utf-8');\n    area.name = 'd';\n    form.appendChild(area);\n    document.body.appendChild(form);\n\n    this.form = form;\n    this.area = area;\n  }\n\n  this.form.action = this.uri();\n\n  function complete () {\n    initIframe();\n    fn();\n  }\n\n  function initIframe () {\n    if (self.iframe) {\n      try {\n        self.form.removeChild(self.iframe);\n      } catch (e) {\n        self.onError('jsonp polling iframe removal error', e);\n      }\n    }\n\n    try {\n      // ie6 dynamic iframes with target=\"\" support (thanks Chris Lambacher)\n      var html = '<iframe src=\"javascript:0\" name=\"' + self.iframeId + '\">';\n      iframe = document.createElement(html);\n    } catch (e) {\n      iframe = document.createElement('iframe');\n      iframe.name = self.iframeId;\n      iframe.src = 'javascript:0';\n    }\n\n    iframe.id = self.iframeId;\n\n    self.form.appendChild(iframe);\n    self.iframe = iframe;\n  }\n\n  initIframe();\n\n  // escape \\n to prevent it from being converted into \\r\\n by some UAs\n  // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side\n  data = data.replace(rEscapedNewline, '\\\\\\n');\n  this.area.value = data.replace(rNewline, '\\\\n');\n\n  try {\n    this.form.submit();\n  } catch (e) {}\n\n  if (this.iframe.attachEvent) {\n    this.iframe.onreadystatechange = function () {\n      if (self.iframe.readyState === 'complete') {\n        complete();\n      }\n    };\n  } else {\n    this.iframe.onload = complete;\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/polling-jsonp.js\n// module id = 29\n// module chunks = 0","/**\n * Module dependencies.\n */\n\nvar Transport = require('../transport');\nvar parser = require('engine.io-parser');\nvar parseqs = require('parseqs');\nvar inherit = require('component-inherit');\nvar yeast = require('yeast');\nvar debug = require('debug')('engine.io-client:websocket');\nvar BrowserWebSocket, NodeWebSocket;\nif (typeof self === 'undefined') {\n  try {\n    NodeWebSocket = require('ws');\n  } catch (e) { }\n} else {\n  BrowserWebSocket = self.WebSocket || self.MozWebSocket;\n}\n\n/**\n * Get either the `WebSocket` or `MozWebSocket` globals\n * in the browser or try to resolve WebSocket-compatible\n * interface exposed by `ws` for Node-like environment.\n */\n\nvar WebSocket = BrowserWebSocket || NodeWebSocket;\n\n/**\n * Module exports.\n */\n\nmodule.exports = WS;\n\n/**\n * WebSocket transport constructor.\n *\n * @api {Object} connection options\n * @api public\n */\n\nfunction WS (opts) {\n  var forceBase64 = (opts && opts.forceBase64);\n  if (forceBase64) {\n    this.supportsBinary = false;\n  }\n  this.perMessageDeflate = opts.perMessageDeflate;\n  this.usingBrowserWebSocket = BrowserWebSocket && !opts.forceNode;\n  this.protocols = opts.protocols;\n  if (!this.usingBrowserWebSocket) {\n    WebSocket = NodeWebSocket;\n  }\n  Transport.call(this, opts);\n}\n\n/**\n * Inherits from Transport.\n */\n\ninherit(WS, Transport);\n\n/**\n * Transport name.\n *\n * @api public\n */\n\nWS.prototype.name = 'websocket';\n\n/*\n * WebSockets support binary\n */\n\nWS.prototype.supportsBinary = true;\n\n/**\n * Opens socket.\n *\n * @api private\n */\n\nWS.prototype.doOpen = function () {\n  if (!this.check()) {\n    // let probe timeout\n    return;\n  }\n\n  var uri = this.uri();\n  var protocols = this.protocols;\n  var opts = {\n    agent: this.agent,\n    perMessageDeflate: this.perMessageDeflate\n  };\n\n  // SSL options for Node.js client\n  opts.pfx = this.pfx;\n  opts.key = this.key;\n  opts.passphrase = this.passphrase;\n  opts.cert = this.cert;\n  opts.ca = this.ca;\n  opts.ciphers = this.ciphers;\n  opts.rejectUnauthorized = this.rejectUnauthorized;\n  if (this.extraHeaders) {\n    opts.headers = this.extraHeaders;\n  }\n  if (this.localAddress) {\n    opts.localAddress = this.localAddress;\n  }\n\n  try {\n    this.ws = this.usingBrowserWebSocket && !this.isReactNative ? (protocols ? new WebSocket(uri, protocols) : new WebSocket(uri)) : new WebSocket(uri, protocols, opts);\n  } catch (err) {\n    return this.emit('error', err);\n  }\n\n  if (this.ws.binaryType === undefined) {\n    this.supportsBinary = false;\n  }\n\n  if (this.ws.supports && this.ws.supports.binary) {\n    this.supportsBinary = true;\n    this.ws.binaryType = 'nodebuffer';\n  } else {\n    this.ws.binaryType = 'arraybuffer';\n  }\n\n  this.addEventListeners();\n};\n\n/**\n * Adds event listeners to the socket\n *\n * @api private\n */\n\nWS.prototype.addEventListeners = function () {\n  var self = this;\n\n  this.ws.onopen = function () {\n    self.onOpen();\n  };\n  this.ws.onclose = function () {\n    self.onClose();\n  };\n  this.ws.onmessage = function (ev) {\n    self.onData(ev.data);\n  };\n  this.ws.onerror = function (e) {\n    self.onError('websocket error', e);\n  };\n};\n\n/**\n * Writes data to socket.\n *\n * @param {Array} array of packets.\n * @api private\n */\n\nWS.prototype.write = function (packets) {\n  var self = this;\n  this.writable = false;\n\n  // encodePacket efficient as it uses WS framing\n  // no need for encodePayload\n  var total = packets.length;\n  for (var i = 0, l = total; i < l; i++) {\n    (function (packet) {\n      parser.encodePacket(packet, self.supportsBinary, function (data) {\n        if (!self.usingBrowserWebSocket) {\n          // always create a new object (GH-437)\n          var opts = {};\n          if (packet.options) {\n            opts.compress = packet.options.compress;\n          }\n\n          if (self.perMessageDeflate) {\n            var len = 'string' === typeof data ? Buffer.byteLength(data) : data.length;\n            if (len < self.perMessageDeflate.threshold) {\n              opts.compress = false;\n            }\n          }\n        }\n\n        // Sometimes the websocket has already been closed but the browser didn't\n        // have a chance of informing us about it yet, in that case send will\n        // throw an error\n        try {\n          if (self.usingBrowserWebSocket) {\n            // TypeError is thrown when passing the second argument on Safari\n            self.ws.send(data);\n          } else {\n            self.ws.send(data, opts);\n          }\n        } catch (e) {\n\n        }\n\n        --total || done();\n      });\n    })(packets[i]);\n  }\n\n  function done () {\n    self.emit('flush');\n\n    // fake drain\n    // defer to next tick to allow Socket to clear writeBuffer\n    setTimeout(function () {\n      self.writable = true;\n      self.emit('drain');\n    }, 0);\n  }\n};\n\n/**\n * Called upon close\n *\n * @api private\n */\n\nWS.prototype.onClose = function () {\n  Transport.prototype.onClose.call(this);\n};\n\n/**\n * Closes socket.\n *\n * @api private\n */\n\nWS.prototype.doClose = function () {\n  if (typeof this.ws !== 'undefined') {\n    this.ws.close();\n  }\n};\n\n/**\n * Generates uri for connection.\n *\n * @api private\n */\n\nWS.prototype.uri = function () {\n  var query = this.query || {};\n  var schema = this.secure ? 'wss' : 'ws';\n  var port = '';\n\n  // avoid port if default for schema\n  if (this.port && (('wss' === schema && Number(this.port) !== 443) ||\n    ('ws' === schema && Number(this.port) !== 80))) {\n    port = ':' + this.port;\n  }\n\n  // append timestamp to URI\n  if (this.timestampRequests) {\n    query[this.timestampParam] = yeast();\n  }\n\n  // communicate binary support capabilities\n  if (!this.supportsBinary) {\n    query.b64 = 1;\n  }\n\n  query = parseqs.encode(query);\n\n  // prepend ? to query\n  if (query.length) {\n    query = '?' + query;\n  }\n\n  var ipv6 = this.hostname.indexOf(':') !== -1;\n  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;\n};\n\n/**\n * Feature detection for WebSocket.\n *\n * @return {Boolean} whether this transport is available.\n * @api public\n */\n\nWS.prototype.check = function () {\n  return !!WebSocket && !('__initialize' in WebSocket && this.name === WS.prototype.name);\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/engine.io-client/lib/transports/websocket.js\n// module id = 30\n// module chunks = 0","\nvar indexOf = [].indexOf;\n\nmodule.exports = function(arr, obj){\n  if (indexOf) return arr.indexOf(obj);\n  for (var i = 0; i < arr.length; ++i) {\n    if (arr[i] === obj) return i;\n  }\n  return -1;\n};\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/indexof/index.js\n// module id = 32\n// module chunks = 0","\n/**\n * Module dependencies.\n */\n\nvar parser = require('socket.io-parser');\nvar Emitter = require('component-emitter');\nvar toArray = require('to-array');\nvar on = require('./on');\nvar bind = require('component-bind');\nvar debug = require('debug')('socket.io-client:socket');\nvar parseqs = require('parseqs');\nvar hasBin = require('has-binary2');\n\n/**\n * Module exports.\n */\n\nmodule.exports = exports = Socket;\n\n/**\n * Internal events (blacklisted).\n * These events can't be emitted by the user.\n *\n * @api private\n */\n\nvar events = {\n  connect: 1,\n  connect_error: 1,\n  connect_timeout: 1,\n  connecting: 1,\n  disconnect: 1,\n  error: 1,\n  reconnect: 1,\n  reconnect_attempt: 1,\n  reconnect_failed: 1,\n  reconnect_error: 1,\n  reconnecting: 1,\n  ping: 1,\n  pong: 1\n};\n\n/**\n * Shortcut to `Emitter#emit`.\n */\n\nvar emit = Emitter.prototype.emit;\n\n/**\n * `Socket` constructor.\n *\n * @api public\n */\n\nfunction Socket (io, nsp, opts) {\n  this.io = io;\n  this.nsp = nsp;\n  this.json = this; // compat\n  this.ids = 0;\n  this.acks = {};\n  this.receiveBuffer = [];\n  this.sendBuffer = [];\n  this.connected = false;\n  this.disconnected = true;\n  this.flags = {};\n  if (opts && opts.query) {\n    this.query = opts.query;\n  }\n  if (this.io.autoConnect) this.open();\n}\n\n/**\n * Mix in `Emitter`.\n */\n\nEmitter(Socket.prototype);\n\n/**\n * Subscribe to open, close and packet events\n *\n * @api private\n */\n\nSocket.prototype.subEvents = function () {\n  if (this.subs) return;\n\n  var io = this.io;\n  this.subs = [\n    on(io, 'open', bind(this, 'onopen')),\n    on(io, 'packet', bind(this, 'onpacket')),\n    on(io, 'close', bind(this, 'onclose'))\n  ];\n};\n\n/**\n * \"Opens\" the socket.\n *\n * @api public\n */\n\nSocket.prototype.open =\nSocket.prototype.connect = function () {\n  if (this.connected) return this;\n\n  this.subEvents();\n  this.io.open(); // ensure open\n  if ('open' === this.io.readyState) this.onopen();\n  this.emit('connecting');\n  return this;\n};\n\n/**\n * Sends a `message` event.\n *\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.send = function () {\n  var args = toArray(arguments);\n  args.unshift('message');\n  this.emit.apply(this, args);\n  return this;\n};\n\n/**\n * Override `emit`.\n * If the event is in `events`, it's emitted normally.\n *\n * @param {String} event name\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.emit = function (ev) {\n  if (events.hasOwnProperty(ev)) {\n    emit.apply(this, arguments);\n    return this;\n  }\n\n  var args = toArray(arguments);\n  var packet = {\n    type: (this.flags.binary !== undefined ? this.flags.binary : hasBin(args)) ? parser.BINARY_EVENT : parser.EVENT,\n    data: args\n  };\n\n  packet.options = {};\n  packet.options.compress = !this.flags || false !== this.flags.compress;\n\n  // event ack callback\n  if ('function' === typeof args[args.length - 1]) {\n\n    this.acks[this.ids] = args.pop();\n    packet.id = this.ids++;\n  }\n\n  if (this.connected) {\n    this.packet(packet);\n  } else {\n    this.sendBuffer.push(packet);\n  }\n\n  this.flags = {};\n\n  return this;\n};\n\n/**\n * Sends a packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.packet = function (packet) {\n  packet.nsp = this.nsp;\n  this.io.packet(packet);\n};\n\n/**\n * Called upon engine `open`.\n *\n * @api private\n */\n\nSocket.prototype.onopen = function () {\n\n\n  // write connect packet if necessary\n  if ('/' !== this.nsp) {\n    if (this.query) {\n      var query = typeof this.query === 'object' ? parseqs.encode(this.query) : this.query;\n\n      this.packet({type: parser.CONNECT, query: query});\n    } else {\n      this.packet({type: parser.CONNECT});\n    }\n  }\n};\n\n/**\n * Called upon engine `close`.\n *\n * @param {String} reason\n * @api private\n */\n\nSocket.prototype.onclose = function (reason) {\n\n  this.connected = false;\n  this.disconnected = true;\n  delete this.id;\n  this.emit('disconnect', reason);\n};\n\n/**\n * Called with socket packet.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onpacket = function (packet) {\n  var sameNamespace = packet.nsp === this.nsp;\n  var rootNamespaceError = packet.type === parser.ERROR && packet.nsp === '/';\n\n  if (!sameNamespace && !rootNamespaceError) return;\n\n  switch (packet.type) {\n    case parser.CONNECT:\n      this.onconnect();\n      break;\n\n    case parser.EVENT:\n      this.onevent(packet);\n      break;\n\n    case parser.BINARY_EVENT:\n      this.onevent(packet);\n      break;\n\n    case parser.ACK:\n      this.onack(packet);\n      break;\n\n    case parser.BINARY_ACK:\n      this.onack(packet);\n      break;\n\n    case parser.DISCONNECT:\n      this.ondisconnect();\n      break;\n\n    case parser.ERROR:\n      this.emit('error', packet.data);\n      break;\n  }\n};\n\n/**\n * Called upon a server event.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onevent = function (packet) {\n  var args = packet.data || [];\n\n\n  if (null != packet.id) {\n\n    args.push(this.ack(packet.id));\n  }\n\n  if (this.connected) {\n    emit.apply(this, args);\n  } else {\n    this.receiveBuffer.push(args);\n  }\n};\n\n/**\n * Produces an ack callback to emit with an event.\n *\n * @api private\n */\n\nSocket.prototype.ack = function (id) {\n  var self = this;\n  var sent = false;\n  return function () {\n    // prevent double callbacks\n    if (sent) return;\n    sent = true;\n    var args = toArray(arguments);\n\n\n    self.packet({\n      type: hasBin(args) ? parser.BINARY_ACK : parser.ACK,\n      id: id,\n      data: args\n    });\n  };\n};\n\n/**\n * Called upon a server acknowlegement.\n *\n * @param {Object} packet\n * @api private\n */\n\nSocket.prototype.onack = function (packet) {\n  var ack = this.acks[packet.id];\n  if ('function' === typeof ack) {\n\n    ack.apply(this, packet.data);\n    delete this.acks[packet.id];\n  } else {\n\n  }\n};\n\n/**\n * Called upon server connect.\n *\n * @api private\n */\n\nSocket.prototype.onconnect = function () {\n  this.connected = true;\n  this.disconnected = false;\n  this.emit('connect');\n  this.emitBuffered();\n};\n\n/**\n * Emit buffered events (received and emitted).\n *\n * @api private\n */\n\nSocket.prototype.emitBuffered = function () {\n  var i;\n  for (i = 0; i < this.receiveBuffer.length; i++) {\n    emit.apply(this, this.receiveBuffer[i]);\n  }\n  this.receiveBuffer = [];\n\n  for (i = 0; i < this.sendBuffer.length; i++) {\n    this.packet(this.sendBuffer[i]);\n  }\n  this.sendBuffer = [];\n};\n\n/**\n * Called upon server disconnect.\n *\n * @api private\n */\n\nSocket.prototype.ondisconnect = function () {\n\n  this.destroy();\n  this.onclose('io server disconnect');\n};\n\n/**\n * Called upon forced client/server side disconnections,\n * this method ensures the manager stops tracking us and\n * that reconnections don't get triggered for this.\n *\n * @api private.\n */\n\nSocket.prototype.destroy = function () {\n  if (this.subs) {\n    // clean subscriptions to avoid reconnections\n    for (var i = 0; i < this.subs.length; i++) {\n      this.subs[i].destroy();\n    }\n    this.subs = null;\n  }\n\n  this.io.destroy(this);\n};\n\n/**\n * Disconnects the socket manually.\n *\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.close =\nSocket.prototype.disconnect = function () {\n  if (this.connected) {\n\n    this.packet({ type: parser.DISCONNECT });\n  }\n\n  // remove socket from pool\n  this.destroy();\n\n  if (this.connected) {\n    // fire events\n    this.onclose('io client disconnect');\n  }\n  return this;\n};\n\n/**\n * Sets the compress flag.\n *\n * @param {Boolean} if `true`, compresses the sending data\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.compress = function (compress) {\n  this.flags.compress = compress;\n  return this;\n};\n\n/**\n * Sets the binary flag\n *\n * @param {Boolean} whether the emitted data contains binary\n * @return {Socket} self\n * @api public\n */\n\nSocket.prototype.binary = function (binary) {\n  this.flags.binary = binary;\n  return this;\n};\n\n\n\n// WEBPACK FOOTER //\n// ./lib/socket.js","module.exports = toArray\n\nfunction toArray(list, index) {\n    var array = []\n\n    index = index || 0\n\n    for (var i = index || 0; i < list.length; i++) {\n        array[i - index] = list[i]\n    }\n\n    return array\n}\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/to-array/index.js\n// module id = 34\n// module chunks = 0","\n/**\n * Module exports.\n */\n\nmodule.exports = on;\n\n/**\n * Helper for subscriptions.\n *\n * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`\n * @param {String} event name\n * @param {Function} callback\n * @api public\n */\n\nfunction on (obj, ev, fn) {\n  obj.on(ev, fn);\n  return {\n    destroy: function () {\n      obj.removeListener(ev, fn);\n    }\n  };\n}\n\n\n\n// WEBPACK FOOTER //\n// ./lib/on.js","/**\n * Slice reference.\n */\n\nvar slice = [].slice;\n\n/**\n * Bind `obj` to `fn`.\n *\n * @param {Object} obj\n * @param {Function|String} fn or string\n * @return {Function}\n * @api public\n */\n\nmodule.exports = function(obj, fn){\n  if ('string' == typeof fn) fn = obj[fn];\n  if ('function' != typeof fn) throw new Error('bind() requires a function');\n  var args = slice.call(arguments, 2);\n  return function(){\n    return fn.apply(obj, args.concat(slice.call(arguments)));\n  }\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/component-bind/index.js\n// module id = 36\n// module chunks = 0","\n/**\n * Expose `Backoff`.\n */\n\nmodule.exports = Backoff;\n\n/**\n * Initialize backoff timer with `opts`.\n *\n * - `min` initial timeout in milliseconds [100]\n * - `max` max timeout [10000]\n * - `jitter` [0]\n * - `factor` [2]\n *\n * @param {Object} opts\n * @api public\n */\n\nfunction Backoff(opts) {\n  opts = opts || {};\n  this.ms = opts.min || 100;\n  this.max = opts.max || 10000;\n  this.factor = opts.factor || 2;\n  this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;\n  this.attempts = 0;\n}\n\n/**\n * Return the backoff duration.\n *\n * @return {Number}\n * @api public\n */\n\nBackoff.prototype.duration = function(){\n  var ms = this.ms * Math.pow(this.factor, this.attempts++);\n  if (this.jitter) {\n    var rand =  Math.random();\n    var deviation = Math.floor(rand * this.jitter * ms);\n    ms = (Math.floor(rand * 10) & 1) == 0  ? ms - deviation : ms + deviation;\n  }\n  return Math.min(ms, this.max) | 0;\n};\n\n/**\n * Reset the number of attempts.\n *\n * @api public\n */\n\nBackoff.prototype.reset = function(){\n  this.attempts = 0;\n};\n\n/**\n * Set the minimum duration\n *\n * @api public\n */\n\nBackoff.prototype.setMin = function(min){\n  this.ms = min;\n};\n\n/**\n * Set the maximum duration\n *\n * @api public\n */\n\nBackoff.prototype.setMax = function(max){\n  this.max = max;\n};\n\n/**\n * Set the jitter\n *\n * @api public\n */\n\nBackoff.prototype.setJitter = function(jitter){\n  this.jitter = jitter;\n};\n\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/backo2/index.js\n// module id = 37\n// module chunks = 0"],"sourceRoot":""}
\ No newline at end of file
diff --git a/helloworld/node_modules/socket.io-client/lib/index.js b/helloworld/node_modules/socket.io-client/lib/index.js
new file mode 100755
index 0000000..6bc993c
--- /dev/null
+++ b/helloworld/node_modules/socket.io-client/lib/index.js
@@ -0,0 +1,94 @@
+
+/**
+ * Module dependencies.
+ */
+
+var url = require('./url');
+var parser = require('socket.io-parser');
+var Manager = require('./manager');
+var debug = require('debug')('socket.io-client');
+
+/**
+ * Module exports.
+ */
+
+module.exports = exports = lookup;
+
+/**
+ * Managers cache.
+ */
+
+var cache = exports.managers = {};
+
+/**
+ * Looks up an existing `Manager` for multiplexing.
+ * If the user summons:
+ *
+ *   `io('http://localhost/a');`
+ *   `io('http://localhost/b');`
+ *
+ * We reuse the existing instance based on same scheme/port/host,
+ * and we initialize sockets for each namespace.
+ *
+ * @api public
+ */
+
+function lookup (uri, opts) {
+  if (typeof uri === 'object') {
+    opts = uri;
+    uri = undefined;
+  }
+
+  opts = opts || {};
+
+  var parsed = url(uri);
+  var source = parsed.source;
+  var id = parsed.id;
+  var path = parsed.path;
+  var sameNamespace = cache[id] && path in cache[id].nsps;
+  var newConnection = opts.forceNew || opts['force new connection'] ||
+                      false === opts.multiplex || sameNamespace;
+
+  var io;
+
+  if (newConnection) {
+    debug('ignoring socket cache for %s', source);
+    io = Manager(source, opts);
+  } else {
+    if (!cache[id]) {
+      debug('new io instance for %s', source);
+      cache[id] = Manager(source, opts);
+    }
+    io = cache[id];
+  }
+  if (parsed.query && !opts.query) {
+    opts.query = parsed.query;
+  }
+  return io.socket(parsed.path, opts);
+}
+
+/**
+ * Protocol version.
+ *
+ * @api public
+ */
+
+exports.protocol = parser.protocol;
+
+/**
+ * `connect`.
+ *
+ * @param {String} uri
+ * @api public
+ */
+
+exports.connect = lookup;
+
+/**
+ * Expose constructors for standalone build.
+ *
+ * @api public
+ */
+
+exports.Manager = require('./manager');
+exports.Socket = require('./socket');
diff --git a/helloworld/node_modules/socket.io-client/lib/manager.js b/helloworld/node_modules/socket.io-client/lib/manager.js
new file mode 100755
index 0000000..e44bd6c
--- /dev/null
+++ b/helloworld/node_modules/socket.io-client/lib/manager.js
@@ -0,0 +1,573 @@
+
+/**
+ * Module dependencies.
+ */
+
+var eio = require('engine.io-client');
+var Socket = require('./socket');
+var Emitter = require('component-emitter');
+var parser = require('socket.io-parser');
+var on = require('./on');
+var bind = require('component-bind');
+var debug = require('debug')('socket.io-client:manager');
+var indexOf = require('indexof');
+var Backoff = require('backo2');
+
+/**
+ * IE6+ hasOwnProperty
+ */
+
+var has = Object.prototype.hasOwnProperty;
+
+/**
+ * Module exports
+ */
+
+module.exports = Manager;
+
+/**
+ * `Manager` constructor.
+ *
+ * @param {String} engine instance or engine uri/opts
+ * @param {Object} options
+ * @api public
+ */
+
+function Manager (uri, opts) {
+  if (!(this instanceof Manager)) return new Manager(uri, opts);
+  if (uri && ('object' === typeof uri)) {
+    opts = uri;
+    uri = undefined;
+  }
+  opts = opts || {};
+
+  opts.path = opts.path || '/socket.io';
+  this.nsps = {};
+  this.subs = [];
+  this.opts = opts;
+  this.reconnection(opts.reconnection !== false);
+  this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);
+  this.reconnectionDelay(opts.reconnectionDelay || 1000);
+  this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);
+  this.randomizationFactor(opts.randomizationFactor || 0.5);
+  this.backoff = new Backoff({
+    min: this.reconnectionDelay(),
+    max: this.reconnectionDelayMax(),
+    jitter: this.randomizationFactor()
+  });
+  this.timeout(null == opts.timeout ? 20000 : opts.timeout);
+  this.readyState = 'closed';
+  this.uri = uri;
+  this.connecting = [];
+  this.lastPing = null;
+  this.encoding = false;
+  this.packetBuffer = [];
+  var _parser = opts.parser || parser;
+  this.encoder = new _parser.Encoder();
+  this.decoder = new _parser.Decoder();
+  this.autoConnect = opts.autoConnect !== false;
+  if (this.autoConnect) this.open();
+}
+
+/**
+ * Propagate given event to sockets and emit on `this`
+ *
+ * @api private
+ */
+
+Manager.prototype.emitAll = function () {
+  this.emit.apply(this, arguments);
+  for (var nsp in this.nsps) {
+    if (has.call(this.nsps, nsp)) {
+      this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);
+    }
+  }
+};
+
+/**
+ * Update `socket.id` of all sockets
+ *
+ * @api private
+ */
+
+Manager.prototype.updateSocketIds = function () {
+  for (var nsp in this.nsps) {
+    if (has.call(this.nsps, nsp)) {
+      this.nsps[nsp].id = this.generateId(nsp);
+    }
+  }
+};
+
+/**
+ * generate `socket.id` for the given `nsp`
+ *
+ * @param {String} nsp
+ * @return {String}
+ * @api private
+ */
+
+Manager.prototype.generateId = function (nsp) {
+  return (nsp === '/' ? '' : (nsp + '#')) + this.engine.id;
+};
+
+/**
+ * Mix in `Emitter`.
+ */
+
+Emitter(Manager.prototype);
+
+/**
+ * Sets the `reconnection` config.
+ *
+ * @param {Boolean} true/false if it should automatically reconnect
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.reconnection = function (v) {
+  if (!arguments.length) return this._reconnection;
+  this._reconnection = !!v;
+  return this;
+};
+
+/**
+ * Sets the reconnection attempts config.
+ *
+ * @param {Number} max reconnection attempts before giving up
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.reconnectionAttempts = function (v) {
+  if (!arguments.length) return this._reconnectionAttempts;
+  this._reconnectionAttempts = v;
+  return this;
+};
+
+/**
+ * Sets the delay between reconnections.
+ *
+ * @param {Number} delay
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.reconnectionDelay = function (v) {
+  if (!arguments.length) return this._reconnectionDelay;
+  this._reconnectionDelay = v;
+  this.backoff && this.backoff.setMin(v);
+  return this;
+};
+
+Manager.prototype.randomizationFactor = function (v) {
+  if (!arguments.length) return this._randomizationFactor;
+  this._randomizationFactor = v;
+  this.backoff && this.backoff.setJitter(v);
+  return this;
+};
+
+/**
+ * Sets the maximum delay between reconnections.
+ *
+ * @param {Number} delay
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.reconnectionDelayMax = function (v) {
+  if (!arguments.length) return this._reconnectionDelayMax;
+  this._reconnectionDelayMax = v;
+  this.backoff && this.backoff.setMax(v);
+  return this;
+};
+
+/**
+ * Sets the connection timeout. `false` to disable
+ *
+ * @return {Manager} self or value
+ * @api public
+ */
+
+Manager.prototype.timeout = function (v) {
+  if (!arguments.length) return this._timeout;
+  this._timeout = v;
+  return this;
+};
+
+/**
+ * Starts trying to reconnect if reconnection is enabled and we have not
+ * started reconnecting yet
+ *
+ * @api private
+ */
+
+Manager.prototype.maybeReconnectOnOpen = function () {
+  // Only try to reconnect if it's the first time we're connecting
+  if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {
+    // keeps reconnection from firing twice for the same reconnection loop
+    this.reconnect();
+  }
+};
+
+/**
+ * Sets the current transport `socket`.
+ *
+ * @param {Function} optional, callback
+ * @return {Manager} self
+ * @api public
+ */
+
+Manager.prototype.open =
+Manager.prototype.connect = function (fn, opts) {
+  debug('readyState %s', this.readyState);
+  if (~this.readyState.indexOf('open')) return this;
+
+  debug('opening %s', this.uri);
+  this.engine = eio(this.uri, this.opts);
+  var socket = this.engine;
+  var self = this;
+  this.readyState = 'opening';
+  this.skipReconnect = false;
+
+  // emit `open`
+  var openSub = on(socket, 'open', function () {
+    self.onopen();
+    fn && fn();
+  });
+
+  // emit `connect_error`
+  var errorSub = on(socket, 'error', function (data) {
+    debug('connect_error');
+    self.cleanup();
+    self.readyState = 'closed';
+    self.emitAll('connect_error', data);
+    if (fn) {
+      var err = new Error('Connection error');
+      err.data = data;
+      fn(err);
+    } else {
+      // Only do this if there is no fn to handle the error
+      self.maybeReconnectOnOpen();
+    }
+  });
+
+  // emit `connect_timeout`
+  if (false !== this._timeout) {
+    var timeout = this._timeout;
+    debug('connect attempt will timeout after %d', timeout);
+
+    // set timer
+    var timer = setTimeout(function () {
+      debug('connect attempt timed out after %d', timeout);
+      openSub.destroy();
+      socket.close();
+      socket.emit('error', 'timeout');
+      self.emitAll('connect_timeout', timeout);
+    }, timeout);
+
+    this.subs.push({
+      destroy: function () {
+        clearTimeout(timer);
+      }
+    });
+  }
+
+  this.subs.push(openSub);
+  this.subs.push(errorSub);
+
+  return this;
+};
+
+/**
+ * Called upon transport open.
+ *
+ * @api private
+ */
+
+Manager.prototype.onopen = function () {
+  debug('open');
+
+  // clear old subs
+  this.cleanup();
+
+  // mark as open
+  this.readyState = 'open';
+  this.emit('open');
+
+  // add new subs
+  var socket = this.engine;
+  this.subs.push(on(socket, 'data', bind(this, 'ondata')));
+  this.subs.push(on(socket, 'ping', bind(this, 'onping')));
+  this.subs.push(on(socket, 'pong', bind(this, 'onpong')));
+  this.subs.push(on(socket, 'error', bind(this, 'onerror')));
+  this.subs.push(on(socket, 'close', bind(this, 'onclose')));
+  this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));
+};
+
+/**
+ * Called upon a ping.
+ *
+ * @api private
+ */
+
+Manager.prototype.onping = function () {
+  this.lastPing = new Date();
+  this.emitAll('ping');
+};
+
+/**
+ * Called upon a packet.
+ *
+ * @api private
+ */
+
+Manager.prototype.onpong = function () {
+  this.emitAll('pong', new Date() - this.lastPing);
+};
+
+/**
+ * Called with data.
+ *
+ * @api private
+ */
+
+Manager.prototype.ondata = function (data) {
+  this.decoder.add(data);
+};
+
+/**
+ * Called when parser fully decodes a packet.
+ *
+ * @api private
+ */
+
+Manager.prototype.ondecoded = function (packet) {
+  this.emit('packet', packet);
+};
+
+/**
+ * Called upon socket error.
+ *
+ * @api private
+ */
+
+Manager.prototype.onerror = function (err) {
+  debug('error', err);
+  this.emitAll('error', err);
+};
+
+/**
+ * Creates a new socket for the given `nsp`.
+ *
+ * @return {Socket}
+ * @api public
+ */
+
+Manager.prototype.socket = function (nsp, opts) {
+  var socket = this.nsps[nsp];
+  if (!socket) {
+    socket = new Socket(this, nsp, opts);
+    this.nsps[nsp] = socket;
+    var self = this;
+    socket.on('connecting', onConnecting);
+    socket.on('connect', function () {
+      socket.id = self.generateId(nsp);
+    });
+
+    if (this.autoConnect) {
+      // manually call here since connecting event is fired before listening
+      onConnecting();
+    }
+  }
+
+  function onConnecting () {
+    if (!~indexOf(self.connecting, socket)) {
+      self.connecting.push(socket);
+    }
+  }
+
+  return socket;
+};
+
+/**
+ * Called upon a socket close.
+ *
+ * @param {Socket} socket
+ */
+
+Manager.prototype.destroy = function (socket) {
+  var index = indexOf(this.connecting, socket);
+  if (~index) this.connecting.splice(index, 1);
+  if (this.connecting.length) return;
+
+  this.close();
+};
+
+/**
+ * Writes a packet.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Manager.prototype.packet = function (packet) {
+  debug('writing packet %j', packet);
+  var self = this;
+  if (packet.query && packet.type === 0) packet.nsp += '?' + packet.query;
+
+  if (!self.encoding) {
+    // encode, then write to engine with result
+    self.encoding = true;
+    this.encoder.encode(packet, function (encodedPackets) {
+      for (var i = 0; i < encodedPackets.length; i++) {
+        self.engine.write(encodedPackets[i], packet.options);
+      }
+      self.encoding = false;
+      self.processPacketQueue();
+    });
+  } else { // add packet to the queue
+    self.packetBuffer.push(packet);
+  }
+};
+
+/**
+ * If packet buffer is non-empty, begins encoding the
+ * next packet in line.
+ *
+ * @api private
+ */
+
+Manager.prototype.processPacketQueue = function () {
+  if (this.packetBuffer.length > 0 && !this.encoding) {
+    var pack = this.packetBuffer.shift();
+    this.packet(pack);
+  }
+};
+
+/**
+ * Clean up transport subscriptions and packet buffer.
+ *
+ * @api private
+ */
+
+Manager.prototype.cleanup = function () {
+  debug('cleanup');
+
+  var subsLength = this.subs.length;
+  for (var i = 0; i < subsLength; i++) {
+    var sub = this.subs.shift();
+    sub.destroy();
+  }
+
+  this.packetBuffer = [];
+  this.encoding = false;
+  this.lastPing = null;
+
+  this.decoder.destroy();
+};
+
+/**
+ * Close the current socket.
+ *
+ * @api private
+ */
+
+Manager.prototype.close =
+Manager.prototype.disconnect = function () {
+  debug('disconnect');
+  this.skipReconnect = true;
+  this.reconnecting = false;
+  if ('opening' === this.readyState) {
+    // `onclose` will not fire because
+    // an open event never happened
+    this.cleanup();
+  }
+  this.backoff.reset();
+  this.readyState = 'closed';
+  if (this.engine) this.engine.close();
+};
+
+/**
+ * Called upon engine close.
+ *
+ * @api private
+ */
+
+Manager.prototype.onclose = function (reason) {
+  debug('onclose');
+
+  this.cleanup();
+  this.backoff.reset();
+  this.readyState = 'closed';
+  this.emit('close', reason);
+
+  if (this._reconnection && !this.skipReconnect) {
+    this.reconnect();
+  }
+};
+
+/**
+ * Attempt a reconnection.
+ *
+ * @api private
+ */
+
+Manager.prototype.reconnect = function () {
+  if (this.reconnecting || this.skipReconnect) return this;
+
+  var self = this;
+
+  if (this.backoff.attempts >= this._reconnectionAttempts) {
+    debug('reconnect failed');
+    this.backoff.reset();
+    this.emitAll('reconnect_failed');
+    this.reconnecting = false;
+  } else {
+    var delay = this.backoff.duration();
+    debug('will wait %dms before reconnect attempt', delay);
+
+    this.reconnecting = true;
+    var timer = setTimeout(function () {
+      if (self.skipReconnect) return;
+
+      debug('attempting reconnect');
+      self.emitAll('reconnect_attempt', self.backoff.attempts);
+      self.emitAll('reconnecting', self.backoff.attempts);
+
+      // check again for the case socket closed in above events
+      if (self.skipReconnect) return;
+
+      self.open(function (err) {
+        if (err) {
+          debug('reconnect attempt error');
+          self.reconnecting = false;
+          self.reconnect();
+          self.emitAll('reconnect_error', err.data);
+        } else {
+          debug('reconnect success');
+          self.onreconnect();
+        }
+      });
+    }, delay);
+
+    this.subs.push({
+      destroy: function () {
+        clearTimeout(timer);
+      }
+    });
+  }
+};
+
+/**
+ * Called upon successful reconnect.
+ *
+ * @api private
+ */
+
+Manager.prototype.onreconnect = function () {
+  var attempt = this.backoff.attempts;
+  this.reconnecting = false;
+  this.backoff.reset();
+  this.updateSocketIds();
+  this.emitAll('reconnect', attempt);
+};
diff --git a/helloworld/node_modules/socket.io-client/lib/on.js b/helloworld/node_modules/socket.io-client/lib/on.js
new file mode 100755
index 0000000..fad9264
--- /dev/null
+++ b/helloworld/node_modules/socket.io-client/lib/on.js
@@ -0,0 +1,24 @@
+
+/**
+ * Module exports.
+ */
+
+module.exports = on;
+
+/**
+ * Helper for subscriptions.
+ *
+ * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`
+ * @param {String} event name
+ * @param {Function} callback
+ * @api public
+ */
+
+function on (obj, ev, fn) {
+  obj.on(ev, fn);
+  return {
+    destroy: function () {
+      obj.removeListener(ev, fn);
+    }
+  };
+}
diff --git a/helloworld/node_modules/socket.io-client/lib/socket.js b/helloworld/node_modules/socket.io-client/lib/socket.js
new file mode 100755
index 0000000..cf441c3
--- /dev/null
+++ b/helloworld/node_modules/socket.io-client/lib/socket.js
@@ -0,0 +1,438 @@
+
+/**
+ * Module dependencies.
+ */
+
+var parser = require('socket.io-parser');
+var Emitter = require('component-emitter');
+var toArray = require('to-array');
+var on = require('./on');
+var bind = require('component-bind');
+var debug = require('debug')('socket.io-client:socket');
+var parseqs = require('parseqs');
+var hasBin = require('has-binary2');
+
+/**
+ * Module exports.
+ */
+
+module.exports = exports = Socket;
+
+/**
+ * Internal events (blacklisted).
+ * These events can't be emitted by the user.
+ *
+ * @api private
+ */
+
+var events = {
+  connect: 1,
+  connect_error: 1,
+  connect_timeout: 1,
+  connecting: 1,
+  disconnect: 1,
+  error: 1,
+  reconnect: 1,
+  reconnect_attempt: 1,
+  reconnect_failed: 1,
+  reconnect_error: 1,
+  reconnecting: 1,
+  ping: 1,
+  pong: 1
+};
+
+/**
+ * Shortcut to `Emitter#emit`.
+ */
+
+var emit = Emitter.prototype.emit;
+
+/**
+ * `Socket` constructor.
+ *
+ * @api public
+ */
+
+function Socket (io, nsp, opts) {
+  this.io = io;
+  this.nsp = nsp;
+  this.json = this; // compat
+  this.ids = 0;
+  this.acks = {};
+  this.receiveBuffer = [];
+  this.sendBuffer = [];
+  this.connected = false;
+  this.disconnected = true;
+  this.flags = {};
+  if (opts && opts.query) {
+    this.query = opts.query;
+  }
+  if (this.io.autoConnect) this.open();
+}
+
+/**
+ * Mix in `Emitter`.
+ */
+
+Emitter(Socket.prototype);
+
+/**
+ * Subscribe to open, close and packet events
+ *
+ * @api private
+ */
+
+Socket.prototype.subEvents = function () {
+  if (this.subs) return;
+
+  var io = this.io;
+  this.subs = [
+    on(io, 'open', bind(this, 'onopen')),
+    on(io, 'packet', bind(this, 'onpacket')),
+    on(io, 'close', bind(this, 'onclose'))
+  ];
+};
+
+/**
+ * "Opens" the socket.
+ *
+ * @api public
+ */
+
+Socket.prototype.open =
+Socket.prototype.connect = function () {
+  if (this.connected) return this;
+
+  this.subEvents();
+  this.io.open(); // ensure open
+  if ('open' === this.io.readyState) this.onopen();
+  this.emit('connecting');
+  return this;
+};
+
+/**
+ * Sends a `message` event.
+ *
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.send = function () {
+  var args = toArray(arguments);
+  args.unshift('message');
+  this.emit.apply(this, args);
+  return this;
+};
+
+/**
+ * Override `emit`.
+ * If the event is in `events`, it's emitted normally.
+ *
+ * @param {String} event name
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.emit = function (ev) {
+  if (events.hasOwnProperty(ev)) {
+    emit.apply(this, arguments);
+    return this;
+  }
+
+  var args = toArray(arguments);
+  var packet = {
+    type: (this.flags.binary !== undefined ? this.flags.binary : hasBin(args)) ? parser.BINARY_EVENT : parser.EVENT,
+    data: args
+  };
+
+  packet.options = {};
+  packet.options.compress = !this.flags || false !== this.flags.compress;
+
+  // event ack callback
+  if ('function' === typeof args[args.length - 1]) {
+    debug('emitting packet with ack id %d', this.ids);
+    this.acks[this.ids] = args.pop();
+    packet.id = this.ids++;
+  }
+
+  if (this.connected) {
+    this.packet(packet);
+  } else {
+    this.sendBuffer.push(packet);
+  }
+
+  this.flags = {};
+
+  return this;
+};
+
+/**
+ * Sends a packet.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.packet = function (packet) {
+  packet.nsp = this.nsp;
+  this.io.packet(packet);
+};
+
+/**
+ * Called upon engine `open`.
+ *
+ * @api private
+ */
+
+Socket.prototype.onopen = function () {
+  debug('transport is open - connecting');
+
+  // write connect packet if necessary
+  if ('/' !== this.nsp) {
+    if (this.query) {
+      var query = typeof this.query === 'object' ? parseqs.encode(this.query) : this.query;
+      debug('sending connect packet with query %s', query);
+      this.packet({type: parser.CONNECT, query: query});
+    } else {
+      this.packet({type: parser.CONNECT});
+    }
+  }
+};
+
+/**
+ * Called upon engine `close`.
+ *
+ * @param {String} reason
+ * @api private
+ */
+
+Socket.prototype.onclose = function (reason) {
+  debug('close (%s)', reason);
+  this.connected = false;
+  this.disconnected = true;
+  delete this.id;
+  this.emit('disconnect', reason);
+};
+
+/**
+ * Called with socket packet.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.onpacket = function (packet) {
+  var sameNamespace = packet.nsp === this.nsp;
+  var rootNamespaceError = packet.type === parser.ERROR && packet.nsp === '/';
+
+  if (!sameNamespace && !rootNamespaceError) return;
+
+  switch (packet.type) {
+    case parser.CONNECT:
+      this.onconnect();
+      break;
+
+    case parser.EVENT:
+      this.onevent(packet);
+      break;
+
+    case parser.BINARY_EVENT:
+      this.onevent(packet);
+      break;
+
+    case parser.ACK:
+      this.onack(packet);
+      break;
+
+    case parser.BINARY_ACK:
+      this.onack(packet);
+      break;
+
+    case parser.DISCONNECT:
+      this.ondisconnect();
+      break;
+
+    case parser.ERROR:
+      this.emit('error', packet.data);
+      break;
+  }
+};
+
+/**
+ * Called upon a server event.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.onevent = function (packet) {
+  var args = packet.data || [];
+  debug('emitting event %j', args);
+
+  if (null != packet.id) {
+    debug('attaching ack callback to event');
+    args.push(this.ack(packet.id));
+  }
+
+  if (this.connected) {
+    emit.apply(this, args);
+  } else {
+    this.receiveBuffer.push(args);
+  }
+};
+
+/**
+ * Produces an ack callback to emit with an event.
+ *
+ * @api private
+ */
+
+Socket.prototype.ack = function (id) {
+  var self = this;
+  var sent = false;
+  return function () {
+    // prevent double callbacks
+    if (sent) return;
+    sent = true;
+    var args = toArray(arguments);
+    debug('sending ack %j', args);
+
+    self.packet({
+      type: hasBin(args) ? parser.BINARY_ACK : parser.ACK,
+      id: id,
+      data: args
+    });
+  };
+};
+
+/**
+ * Called upon a server acknowlegement.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.onack = function (packet) {
+  var ack = this.acks[packet.id];
+  if ('function' === typeof ack) {
+    debug('calling ack %s with %j', packet.id, packet.data);
+    ack.apply(this, packet.data);
+    delete this.acks[packet.id];
+  } else {
+    debug('bad ack %s', packet.id);
+  }
+};
+
+/**
+ * Called upon server connect.
+ *
+ * @api private
+ */
+
+Socket.prototype.onconnect = function () {
+  this.connected = true;
+  this.disconnected = false;
+  this.emit('connect');
+  this.emitBuffered();
+};
+
+/**
+ * Emit buffered events (received and emitted).
+ *
+ * @api private
+ */
+
+Socket.prototype.emitBuffered = function () {
+  var i;
+  for (i = 0; i < this.receiveBuffer.length; i++) {
+    emit.apply(this, this.receiveBuffer[i]);
+  }
+  this.receiveBuffer = [];
+
+  for (i = 0; i < this.sendBuffer.length; i++) {
+    this.packet(this.sendBuffer[i]);
+  }
+  this.sendBuffer = [];
+};
+
+/**
+ * Called upon server disconnect.
+ *
+ * @api private
+ */
+
+Socket.prototype.ondisconnect = function () {
+  debug('server disconnect (%s)', this.nsp);
+  this.destroy();
+  this.onclose('io server disconnect');
+};
+
+/**
+ * Called upon forced client/server side disconnections,
+ * this method ensures the manager stops tracking us and
+ * that reconnections don't get triggered for this.
+ *
+ * @api private.
+ */
+
+Socket.prototype.destroy = function () {
+  if (this.subs) {
+    // clean subscriptions to avoid reconnections
+    for (var i = 0; i < this.subs.length; i++) {
+      this.subs[i].destroy();
+    }
+    this.subs = null;
+  }
+
+  this.io.destroy(this);
+};
+
+/**
+ * Disconnects the socket manually.
+ *
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.close =
+Socket.prototype.disconnect = function () {
+  if (this.connected) {
+    debug('performing disconnect (%s)', this.nsp);
+    this.packet({ type: parser.DISCONNECT });
+  }
+
+  // remove socket from pool
+  this.destroy();
+
+  if (this.connected) {
+    // fire events
+    this.onclose('io client disconnect');
+  }
+  return this;
+};
+
+/**
+ * Sets the compress flag.
+ *
+ * @param {Boolean} if `true`, compresses the sending data
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.compress = function (compress) {
+  this.flags.compress = compress;
+  return this;
+};
+
+/**
+ * Sets the binary flag
+ *
+ * @param {Boolean} whether the emitted data contains binary
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.binary = function (binary) {
+  this.flags.binary = binary;
+  return this;
+};
diff --git a/helloworld/node_modules/socket.io-client/lib/url.js b/helloworld/node_modules/socket.io-client/lib/url.js
new file mode 100755
index 0000000..1b51c3c
--- /dev/null
+++ b/helloworld/node_modules/socket.io-client/lib/url.js
@@ -0,0 +1,75 @@
+
+/**
+ * Module dependencies.
+ */
+
+var parseuri = require('parseuri');
+var debug = require('debug')('socket.io-client:url');
+
+/**
+ * Module exports.
+ */
+
+module.exports = url;
+
+/**
+ * URL parser.
+ *
+ * @param {String} url
+ * @param {Object} An object meant to mimic window.location.
+ *                 Defaults to window.location.
+ * @api public
+ */
+
+function url (uri, loc) {
+  var obj = uri;
+
+  // default to window.location
+  loc = loc || (typeof location !== 'undefined' && location);
+  if (null == uri) uri = loc.protocol + '//' + loc.host;
+
+  // relative path support
+  if ('string' === typeof uri) {
+    if ('/' === uri.charAt(0)) {
+      if ('/' === uri.charAt(1)) {
+        uri = loc.protocol + uri;
+      } else {
+        uri = loc.host + uri;
+      }
+    }
+
+    if (!/^(https?|wss?):\/\//.test(uri)) {
+      debug('protocol-less url %s', uri);
+      if ('undefined' !== typeof loc) {
+        uri = loc.protocol + '//' + uri;
+      } else {
+        uri = 'https://' + uri;
+      }
+    }
+
+    // parse
+    debug('parse %s', uri);
+    obj = parseuri(uri);
+  }
+
+  // make sure we treat `localhost:80` and `localhost` equally
+  if (!obj.port) {
+    if (/^(http|ws)$/.test(obj.protocol)) {
+      obj.port = '80';
+    } else if (/^(http|ws)s$/.test(obj.protocol)) {
+      obj.port = '443';
+    }
+  }
+
+  obj.path = obj.path || '/';
+
+  var ipv6 = obj.host.indexOf(':') !== -1;
+  var host = ipv6 ? '[' + obj.host + ']' : obj.host;
+
+  // define unique id
+  obj.id = obj.protocol + '://' + host + ':' + obj.port;
+  // define href
+  obj.href = obj.protocol + '://' + host + (loc && loc.port === obj.port ? '' : (':' + obj.port));
+
+  return obj;
+}
diff --git a/helloworld/node_modules/socket.io-parser/LICENSE b/helloworld/node_modules/socket.io-parser/LICENSE
new file mode 100755
index 0000000..7e43606
--- /dev/null
+++ b/helloworld/node_modules/socket.io-parser/LICENSE
@@ -0,0 +1,20 @@
+(The MIT License)
+
+Copyright (c) 2014 Guillermo Rauch <guillermo@learnboost.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the 'Software'), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/socket.io-parser/Readme.md b/helloworld/node_modules/socket.io-parser/Readme.md
new file mode 100755
index 0000000..ac22117
--- /dev/null
+++ b/helloworld/node_modules/socket.io-parser/Readme.md
@@ -0,0 +1,73 @@
+
+# socket.io-parser
+
+[![Build Status](https://secure.travis-ci.org/socketio/socket.io-parser.svg?branch=master)](http://travis-ci.org/socketio/socket.io-parser)
+[![NPM version](https://badge.fury.io/js/socket.io-parser.svg)](http://badge.fury.io/js/socket.io-parser)
+
+A socket.io encoder and decoder written in JavaScript complying with version `3`
+of [socket.io-protocol](https://github.com/socketio/socket.io-protocol).
+Used by [socket.io](https://github.com/automattic/socket.io) and
+[socket.io-client](https://github.com/automattic/socket.io-client).
+
+## Parser API
+
+  socket.io-parser is the reference implementation of socket.io-protocol. Read
+  the full API here:
+  [socket.io-protocol](https://github.com/learnboost/socket.io-protocol).
+
+## Example Usage
+
+### Encoding and decoding a packet
+
+```js
+var parser = require('socket.io-parser');
+var encoder = new parser.Encoder();
+var packet = {
+  type: parser.EVENT,
+  data: 'test-packet',
+  id: 13
+};
+encoder.encode(packet, function(encodedPackets) {
+  var decoder = new parser.Decoder();
+  decoder.on('decoded', function(decodedPacket) {
+    // decodedPacket.type == parser.EVENT
+    // decodedPacket.data == 'test-packet'
+    // decodedPacket.id == 13
+  });
+
+  for (var i = 0; i < encodedPackets.length; i++) {
+    decoder.add(encodedPackets[i]);
+  }
+});
+```
+
+### Encoding and decoding a packet with binary data
+
+```js
+var parser = require('socket.io-parser');
+var encoder = new parser.Encoder();
+var packet = {
+  type: parser.BINARY_EVENT,
+  data: {i: new Buffer(1234), j: new Blob([new ArrayBuffer(2)])}
+  id: 15
+};
+encoder.encode(packet, function(encodedPackets) {
+  var decoder = new parser.Decoder();
+  decoder.on('decoded', function(decodedPacket) {
+    // decodedPacket.type == parser.BINARY_EVENT
+    // Buffer.isBuffer(decodedPacket.data.i) == true
+    // Buffer.isBuffer(decodedPacket.data.j) == true
+    // decodedPacket.id == 15
+  });
+
+  for (var i = 0; i < encodedPackets.length; i++) {
+    decoder.add(encodedPackets[i]);
+  }
+});
+```
+See the test suite for more examples of how socket.io-parser is used.
+
+
+## License
+
+MIT
diff --git a/helloworld/node_modules/socket.io-parser/binary.js b/helloworld/node_modules/socket.io-parser/binary.js
new file mode 100755
index 0000000..3e2347d
--- /dev/null
+++ b/helloworld/node_modules/socket.io-parser/binary.js
@@ -0,0 +1,141 @@
+/*global Blob,File*/
+
+/**
+ * Module requirements
+ */
+
+var isArray = require('isarray');
+var isBuf = require('./is-buffer');
+var toString = Object.prototype.toString;
+var withNativeBlob = typeof Blob === 'function' || (typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]');
+var withNativeFile = typeof File === 'function' || (typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]');
+
+/**
+ * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder.
+ * Anything with blobs or files should be fed through removeBlobs before coming
+ * here.
+ *
+ * @param {Object} packet - socket.io event packet
+ * @return {Object} with deconstructed packet and list of buffers
+ * @api public
+ */
+
+exports.deconstructPacket = function(packet) {
+  var buffers = [];
+  var packetData = packet.data;
+  var pack = packet;
+  pack.data = _deconstructPacket(packetData, buffers);
+  pack.attachments = buffers.length; // number of binary 'attachments'
+  return {packet: pack, buffers: buffers};
+};
+
+function _deconstructPacket(data, buffers) {
+  if (!data) return data;
+
+  if (isBuf(data)) {
+    var placeholder = { _placeholder: true, num: buffers.length };
+    buffers.push(data);
+    return placeholder;
+  } else if (isArray(data)) {
+    var newData = new Array(data.length);
+    for (var i = 0; i < data.length; i++) {
+      newData[i] = _deconstructPacket(data[i], buffers);
+    }
+    return newData;
+  } else if (typeof data === 'object' && !(data instanceof Date)) {
+    var newData = {};
+    for (var key in data) {
+      newData[key] = _deconstructPacket(data[key], buffers);
+    }
+    return newData;
+  }
+  return data;
+}
+
+/**
+ * Reconstructs a binary packet from its placeholder packet and buffers
+ *
+ * @param {Object} packet - event packet with placeholders
+ * @param {Array} buffers - binary buffers to put in placeholder positions
+ * @return {Object} reconstructed packet
+ * @api public
+ */
+
+exports.reconstructPacket = function(packet, buffers) {
+  packet.data = _reconstructPacket(packet.data, buffers);
+  packet.attachments = undefined; // no longer useful
+  return packet;
+};
+
+function _reconstructPacket(data, buffers) {
+  if (!data) return data;
+
+  if (data && data._placeholder) {
+    return buffers[data.num]; // appropriate buffer (should be natural order anyway)
+  } else if (isArray(data)) {
+    for (var i = 0; i < data.length; i++) {
+      data[i] = _reconstructPacket(data[i], buffers);
+    }
+  } else if (typeof data === 'object') {
+    for (var key in data) {
+      data[key] = _reconstructPacket(data[key], buffers);
+    }
+  }
+
+  return data;
+}
+
+/**
+ * Asynchronously removes Blobs or Files from data via
+ * FileReader's readAsArrayBuffer method. Used before encoding
+ * data as msgpack. Calls callback with the blobless data.
+ *
+ * @param {Object} data
+ * @param {Function} callback
+ * @api private
+ */
+
+exports.removeBlobs = function(data, callback) {
+  function _removeBlobs(obj, curKey, containingObject) {
+    if (!obj) return obj;
+
+    // convert any blob
+    if ((withNativeBlob && obj instanceof Blob) ||
+        (withNativeFile && obj instanceof File)) {
+      pendingBlobs++;
+
+      // async filereader
+      var fileReader = new FileReader();
+      fileReader.onload = function() { // this.result == arraybuffer
+        if (containingObject) {
+          containingObject[curKey] = this.result;
+        }
+        else {
+          bloblessData = this.result;
+        }
+
+        // if nothing pending its callback time
+        if(! --pendingBlobs) {
+          callback(bloblessData);
+        }
+      };
+
+      fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer
+    } else if (isArray(obj)) { // handle array
+      for (var i = 0; i < obj.length; i++) {
+        _removeBlobs(obj[i], i, obj);
+      }
+    } else if (typeof obj === 'object' && !isBuf(obj)) { // and object
+      for (var key in obj) {
+        _removeBlobs(obj[key], key, obj);
+      }
+    }
+  }
+
+  var pendingBlobs = 0;
+  var bloblessData = data;
+  _removeBlobs(bloblessData);
+  if (!pendingBlobs) {
+    callback(bloblessData);
+  }
+};
diff --git a/helloworld/node_modules/socket.io-parser/index.js b/helloworld/node_modules/socket.io-parser/index.js
new file mode 100755
index 0000000..102615a
--- /dev/null
+++ b/helloworld/node_modules/socket.io-parser/index.js
@@ -0,0 +1,415 @@
+
+/**
+ * Module dependencies.
+ */
+
+var debug = require('debug')('socket.io-parser');
+var Emitter = require('component-emitter');
+var binary = require('./binary');
+var isArray = require('isarray');
+var isBuf = require('./is-buffer');
+
+/**
+ * Protocol version.
+ *
+ * @api public
+ */
+
+exports.protocol = 4;
+
+/**
+ * Packet types.
+ *
+ * @api public
+ */
+
+exports.types = [
+  'CONNECT',
+  'DISCONNECT',
+  'EVENT',
+  'ACK',
+  'ERROR',
+  'BINARY_EVENT',
+  'BINARY_ACK'
+];
+
+/**
+ * Packet type `connect`.
+ *
+ * @api public
+ */
+
+exports.CONNECT = 0;
+
+/**
+ * Packet type `disconnect`.
+ *
+ * @api public
+ */
+
+exports.DISCONNECT = 1;
+
+/**
+ * Packet type `event`.
+ *
+ * @api public
+ */
+
+exports.EVENT = 2;
+
+/**
+ * Packet type `ack`.
+ *
+ * @api public
+ */
+
+exports.ACK = 3;
+
+/**
+ * Packet type `error`.
+ *
+ * @api public
+ */
+
+exports.ERROR = 4;
+
+/**
+ * Packet type 'binary event'
+ *
+ * @api public
+ */
+
+exports.BINARY_EVENT = 5;
+
+/**
+ * Packet type `binary ack`. For acks with binary arguments.
+ *
+ * @api public
+ */
+
+exports.BINARY_ACK = 6;
+
+/**
+ * Encoder constructor.
+ *
+ * @api public
+ */
+
+exports.Encoder = Encoder;
+
+/**
+ * Decoder constructor.
+ *
+ * @api public
+ */
+
+exports.Decoder = Decoder;
+
+/**
+ * A socket.io Encoder instance
+ *
+ * @api public
+ */
+
+function Encoder() {}
+
+var ERROR_PACKET = exports.ERROR + '"encode error"';
+
+/**
+ * Encode a packet as a single string if non-binary, or as a
+ * buffer sequence, depending on packet type.
+ *
+ * @param {Object} obj - packet object
+ * @param {Function} callback - function to handle encodings (likely engine.write)
+ * @return Calls callback with Array of encodings
+ * @api public
+ */
+
+Encoder.prototype.encode = function(obj, callback){
+  debug('encoding packet %j', obj);
+
+  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {
+    encodeAsBinary(obj, callback);
+  } else {
+    var encoding = encodeAsString(obj);
+    callback([encoding]);
+  }
+};
+
+/**
+ * Encode packet as string.
+ *
+ * @param {Object} packet
+ * @return {String} encoded
+ * @api private
+ */
+
+function encodeAsString(obj) {
+
+  // first is type
+  var str = '' + obj.type;
+
+  // attachments if we have them
+  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {
+    str += obj.attachments + '-';
+  }
+
+  // if we have a namespace other than `/`
+  // we append it followed by a comma `,`
+  if (obj.nsp && '/' !== obj.nsp) {
+    str += obj.nsp + ',';
+  }
+
+  // immediately followed by the id
+  if (null != obj.id) {
+    str += obj.id;
+  }
+
+  // json data
+  if (null != obj.data) {
+    var payload = tryStringify(obj.data);
+    if (payload !== false) {
+      str += payload;
+    } else {
+      return ERROR_PACKET;
+    }
+  }
+
+  debug('encoded %j as %s', obj, str);
+  return str;
+}
+
+function tryStringify(str) {
+  try {
+    return JSON.stringify(str);
+  } catch(e){
+    return false;
+  }
+}
+
+/**
+ * Encode packet as 'buffer sequence' by removing blobs, and
+ * deconstructing packet into object with placeholders and
+ * a list of buffers.
+ *
+ * @param {Object} packet
+ * @return {Buffer} encoded
+ * @api private
+ */
+
+function encodeAsBinary(obj, callback) {
+
+  function writeEncoding(bloblessData) {
+    var deconstruction = binary.deconstructPacket(bloblessData);
+    var pack = encodeAsString(deconstruction.packet);
+    var buffers = deconstruction.buffers;
+
+    buffers.unshift(pack); // add packet info to beginning of data list
+    callback(buffers); // write all the buffers
+  }
+
+  binary.removeBlobs(obj, writeEncoding);
+}
+
+/**
+ * A socket.io Decoder instance
+ *
+ * @return {Object} decoder
+ * @api public
+ */
+
+function Decoder() {
+  this.reconstructor = null;
+}
+
+/**
+ * Mix in `Emitter` with Decoder.
+ */
+
+Emitter(Decoder.prototype);
+
+/**
+ * Decodes an encoded packet string into packet JSON.
+ *
+ * @param {String} obj - encoded packet
+ * @return {Object} packet
+ * @api public
+ */
+
+Decoder.prototype.add = function(obj) {
+  var packet;
+  if (typeof obj === 'string') {
+    packet = decodeString(obj);
+    if (exports.BINARY_EVENT === packet.type || exports.BINARY_ACK === packet.type) { // binary packet's json
+      this.reconstructor = new BinaryReconstructor(packet);
+
+      // no attachments, labeled binary but no binary data to follow
+      if (this.reconstructor.reconPack.attachments === 0) {
+        this.emit('decoded', packet);
+      }
+    } else { // non-binary full packet
+      this.emit('decoded', packet);
+    }
+  } else if (isBuf(obj) || obj.base64) { // raw binary data
+    if (!this.reconstructor) {
+      throw new Error('got binary data when not reconstructing a packet');
+    } else {
+      packet = this.reconstructor.takeBinaryData(obj);
+      if (packet) { // received final buffer
+        this.reconstructor = null;
+        this.emit('decoded', packet);
+      }
+    }
+  } else {
+    throw new Error('Unknown type: ' + obj);
+  }
+};
+
+/**
+ * Decode a packet String (JSON data)
+ *
+ * @param {String} str
+ * @return {Object} packet
+ * @api private
+ */
+
+function decodeString(str) {
+  var i = 0;
+  // look up type
+  var p = {
+    type: Number(str.charAt(0))
+  };
+
+  if (null == exports.types[p.type]) {
+    return error('unknown packet type ' + p.type);
+  }
+
+  // look up attachments if type binary
+  if (exports.BINARY_EVENT === p.type || exports.BINARY_ACK === p.type) {
+    var buf = '';
+    while (str.charAt(++i) !== '-') {
+      buf += str.charAt(i);
+      if (i == str.length) break;
+    }
+    if (buf != Number(buf) || str.charAt(i) !== '-') {
+      throw new Error('Illegal attachments');
+    }
+    p.attachments = Number(buf);
+  }
+
+  // look up namespace (if any)
+  if ('/' === str.charAt(i + 1)) {
+    p.nsp = '';
+    while (++i) {
+      var c = str.charAt(i);
+      if (',' === c) break;
+      p.nsp += c;
+      if (i === str.length) break;
+    }
+  } else {
+    p.nsp = '/';
+  }
+
+  // look up id
+  var next = str.charAt(i + 1);
+  if ('' !== next && Number(next) == next) {
+    p.id = '';
+    while (++i) {
+      var c = str.charAt(i);
+      if (null == c || Number(c) != c) {
+        --i;
+        break;
+      }
+      p.id += str.charAt(i);
+      if (i === str.length) break;
+    }
+    p.id = Number(p.id);
+  }
+
+  // look up json data
+  if (str.charAt(++i)) {
+    var payload = tryParse(str.substr(i));
+    var isPayloadValid = payload !== false && (p.type === exports.ERROR || isArray(payload));
+    if (isPayloadValid) {
+      p.data = payload;
+    } else {
+      return error('invalid payload');
+    }
+  }
+
+  debug('decoded %s as %j', str, p);
+  return p;
+}
+
+function tryParse(str) {
+  try {
+    return JSON.parse(str);
+  } catch(e){
+    return false;
+  }
+}
+
+/**
+ * Deallocates a parser's resources
+ *
+ * @api public
+ */
+
+Decoder.prototype.destroy = function() {
+  if (this.reconstructor) {
+    this.reconstructor.finishedReconstruction();
+  }
+};
+
+/**
+ * A manager of a binary event's 'buffer sequence'. Should
+ * be constructed whenever a packet of type BINARY_EVENT is
+ * decoded.
+ *
+ * @param {Object} packet
+ * @return {BinaryReconstructor} initialized reconstructor
+ * @api private
+ */
+
+function BinaryReconstructor(packet) {
+  this.reconPack = packet;
+  this.buffers = [];
+}
+
+/**
+ * Method to be called when binary data received from connection
+ * after a BINARY_EVENT packet.
+ *
+ * @param {Buffer | ArrayBuffer} binData - the raw binary data received
+ * @return {null | Object} returns null if more binary data is expected or
+ *   a reconstructed packet object if all buffers have been received.
+ * @api private
+ */
+
+BinaryReconstructor.prototype.takeBinaryData = function(binData) {
+  this.buffers.push(binData);
+  if (this.buffers.length === this.reconPack.attachments) { // done with buffer list
+    var packet = binary.reconstructPacket(this.reconPack, this.buffers);
+    this.finishedReconstruction();
+    return packet;
+  }
+  return null;
+};
+
+/**
+ * Cleans up binary packet reconstruction variables.
+ *
+ * @api private
+ */
+
+BinaryReconstructor.prototype.finishedReconstruction = function() {
+  this.reconPack = null;
+  this.buffers = [];
+};
+
+function error(msg) {
+  return {
+    type: exports.ERROR,
+    data: 'parser error: ' + msg
+  };
+}
diff --git a/helloworld/node_modules/socket.io-parser/is-buffer.js b/helloworld/node_modules/socket.io-parser/is-buffer.js
new file mode 100755
index 0000000..c833865
--- /dev/null
+++ b/helloworld/node_modules/socket.io-parser/is-buffer.js
@@ -0,0 +1,20 @@
+
+module.exports = isBuf;
+
+var withNativeBuffer = typeof Buffer === 'function' && typeof Buffer.isBuffer === 'function';
+var withNativeArrayBuffer = typeof ArrayBuffer === 'function';
+
+var isView = function (obj) {
+  return typeof ArrayBuffer.isView === 'function' ? ArrayBuffer.isView(obj) : (obj.buffer instanceof ArrayBuffer);
+};
+
+/**
+ * Returns true if obj is a buffer or an arraybuffer.
+ *
+ * @api private
+ */
+
+function isBuf(obj) {
+  return (withNativeBuffer && Buffer.isBuffer(obj)) ||
+          (withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj)));
+}
diff --git a/helloworld/node_modules/socket.io/LICENSE b/helloworld/node_modules/socket.io/LICENSE
new file mode 100755
index 0000000..6ce8c5c
--- /dev/null
+++ b/helloworld/node_modules/socket.io/LICENSE
@@ -0,0 +1,22 @@
+(The MIT License)
+
+Copyright (c) 2014-2018 Automattic <dev@cloudup.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/socket.io/Readme.md b/helloworld/node_modules/socket.io/Readme.md
new file mode 100755
index 0000000..88e8b3a
--- /dev/null
+++ b/helloworld/node_modules/socket.io/Readme.md
@@ -0,0 +1,243 @@
+
+# socket.io
+
+[![Backers on Open Collective](https://opencollective.com/socketio/backers/badge.svg)](#backers) [![Sponsors on Open Collective](https://opencollective.com/socketio/sponsors/badge.svg)](#sponsors)
+[![Build Status](https://secure.travis-ci.org/socketio/socket.io.svg?branch=master)](https://travis-ci.org/socketio/socket.io)
+[![Dependency Status](https://david-dm.org/socketio/socket.io.svg)](https://david-dm.org/socketio/socket.io)
+[![devDependency Status](https://david-dm.org/socketio/socket.io/dev-status.svg)](https://david-dm.org/socketio/socket.io#info=devDependencies)
+[![NPM version](https://badge.fury.io/js/socket.io.svg)](https://www.npmjs.com/package/socket.io)
+![Downloads](https://img.shields.io/npm/dm/socket.io.svg?style=flat)
+[![](https://slackin-socketio.now.sh/badge.svg)](https://slackin-socketio.now.sh)
+
+## Features
+
+Socket.IO enables real-time bidirectional event-based communication. It consists of:
+
+- a Node.js server (this repository)
+- a [Javascript client library](https://github.com/socketio/socket.io-client) for the browser (or a Node.js client)
+
+Some implementations in other languages are also available:
+
+- [Java](https://github.com/socketio/socket.io-client-java)
+- [C++](https://github.com/socketio/socket.io-client-cpp)
+- [Swift](https://github.com/socketio/socket.io-client-swift)
+- [Dart](https://github.com/rikulo/socket.io-client-dart)
+
+Its main features are:
+
+#### Reliability
+
+Connections are established even in the presence of:
+  - proxies and load balancers.
+  - personal firewall and antivirus software.
+
+For this purpose, it relies on [Engine.IO](https://github.com/socketio/engine.io), which first establishes a long-polling connection, then tries to upgrade to better transports that are "tested" on the side, like WebSocket. Please see the [Goals](https://github.com/socketio/engine.io#goals) section for more information.
+
+#### Auto-reconnection support
+
+Unless instructed otherwise a disconnected client will try to reconnect forever, until the server is available again. Please see the available reconnection options [here](https://github.com/socketio/socket.io-client/blob/master/docs/API.md#new-managerurl-options).
+
+#### Disconnection detection
+
+A heartbeat mechanism is implemented at the Engine.IO level, allowing both the server and the client to know when the other one is not responding anymore.
+
+That functionality is achieved with timers set on both the server and the client, with timeout values (the `pingInterval` and `pingTimeout` parameters) shared during the connection handshake. Those timers require any subsequent client calls to be directed to the same server, hence the `sticky-session` requirement when using multiples nodes.
+
+#### Binary support
+
+Any serializable data structures can be emitted, including:
+
+- [ArrayBuffer](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer) and [Blob](https://developer.mozilla.org/en-US/docs/Web/API/Blob) in the browser
+- [ArrayBuffer](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer) and [Buffer](https://nodejs.org/api/buffer.html) in Node.js
+
+#### Simple and convenient API
+
+Sample code:
+
+```js
+io.on('connection', socket => {
+  socket.emit('request', /* … */); // emit an event to the socket
+  io.emit('broadcast', /* … */); // emit an event to all connected sockets
+  socket.on('reply', () => { /* … */ }); // listen to the event
+});
+```
+
+#### Cross-browser
+
+Browser support is tested in Saucelabs:
+
+[![Sauce Test Status](https://saucelabs.com/browser-matrix/socket.svg)](https://saucelabs.com/u/socket)
+
+#### Multiplexing support
+
+In order to create separation of concerns within your application (for example per module, or based on permissions), Socket.IO allows you to create several `Namespaces`, which will act as separate communication channels but will share the same underlying connection.
+
+#### Room support
+
+Within each `Namespace`, you can define arbitrary channels, called `Rooms`, that sockets can join and leave. You can then broadcast to any given room, reaching every socket that has joined it.
+
+This is a useful feature to send notifications to a group of users, or to a given user connected on several devices for example.
+
+
+**Note:** Socket.IO is not a WebSocket implementation. Although Socket.IO indeed uses WebSocket as a transport when possible, it adds some metadata to each packet: the packet type, the namespace and the ack id when a message acknowledgement is needed. That is why a WebSocket client will not be able to successfully connect to a Socket.IO server, and a Socket.IO client will not be able to connect to a WebSocket server (like `ws://echo.websocket.org`) either. Please see the protocol specification [here](https://github.com/socketio/socket.io-protocol).
+
+## Installation
+
+```bash
+npm install socket.io
+```
+
+## How to use
+
+The following example attaches socket.io to a plain Node.JS
+HTTP server listening on port `3000`.
+
+```js
+const server = require('http').createServer();
+const io = require('socket.io')(server);
+io.on('connection', client => {
+  client.on('event', data => { /* … */ });
+  client.on('disconnect', () => { /* … */ });
+});
+server.listen(3000);
+```
+
+### Standalone
+
+```js
+const io = require('socket.io')();
+io.on('connection', client => { ... });
+io.listen(3000);
+```
+
+### In conjunction with Express
+
+Starting with **3.0**, express applications have become request handler
+functions that you pass to `http` or `http` `Server` instances. You need
+to pass the `Server` to `socket.io`, and not the express application
+function. Also make sure to call `.listen` on the `server`, not the `app`.
+
+```js
+const app = require('express')();
+const server = require('http').createServer(app);
+const io = require('socket.io')(server);
+io.on('connection', () => { /* … */ });
+server.listen(3000);
+```
+
+### In conjunction with Koa
+
+Like Express.JS, Koa works by exposing an application as a request
+handler function, but only by calling the `callback` method.
+
+```js
+const app = require('koa')();
+const server = require('http').createServer(app.callback());
+const io = require('socket.io')(server);
+io.on('connection', () => { /* … */ });
+server.listen(3000);
+```
+
+## Documentation
+
+Please see the documentation [here](/docs/README.md). Contributions are welcome!
+
+## Debug / logging
+
+Socket.IO is powered by [debug](https://github.com/visionmedia/debug).
+In order to see all the debug output, run your app with the environment variable
+`DEBUG` including the desired scope.
+
+To see the output from all of Socket.IO's debugging scopes you can use:
+
+```
+DEBUG=socket.io* node myapp
+```
+
+## Testing
+
+```
+npm test
+```
+This runs the `gulp` task `test`. By default the test will be run with the source code in `lib` directory.
+
+Set the environmental variable `TEST_VERSION` to `compat` to test the transpiled es5-compat version of the code.
+
+The `gulp` task `test` will always transpile the source code into es5 and export to `dist` first before running the test.
+
+
+## Backers
+
+Support us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/socketio#backer)]
+
+<a href="https://opencollective.com/socketio/backer/0/website" target="_blank"><img src="https://opencollective.com/socketio/backer/0/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/1/website" target="_blank"><img src="https://opencollective.com/socketio/backer/1/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/2/website" target="_blank"><img src="https://opencollective.com/socketio/backer/2/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/3/website" target="_blank"><img src="https://opencollective.com/socketio/backer/3/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/4/website" target="_blank"><img src="https://opencollective.com/socketio/backer/4/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/5/website" target="_blank"><img src="https://opencollective.com/socketio/backer/5/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/6/website" target="_blank"><img src="https://opencollective.com/socketio/backer/6/avatar.svg"></a>
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+<a href="https://opencollective.com/socketio/backer/14/website" target="_blank"><img src="https://opencollective.com/socketio/backer/14/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/15/website" target="_blank"><img src="https://opencollective.com/socketio/backer/15/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/16/website" target="_blank"><img src="https://opencollective.com/socketio/backer/16/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/17/website" target="_blank"><img src="https://opencollective.com/socketio/backer/17/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/18/website" target="_blank"><img src="https://opencollective.com/socketio/backer/18/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/19/website" target="_blank"><img src="https://opencollective.com/socketio/backer/19/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/20/website" target="_blank"><img src="https://opencollective.com/socketio/backer/20/avatar.svg"></a>
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+<a href="https://opencollective.com/socketio/backer/23/website" target="_blank"><img src="https://opencollective.com/socketio/backer/23/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/24/website" target="_blank"><img src="https://opencollective.com/socketio/backer/24/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/25/website" target="_blank"><img src="https://opencollective.com/socketio/backer/25/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/26/website" target="_blank"><img src="https://opencollective.com/socketio/backer/26/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/27/website" target="_blank"><img src="https://opencollective.com/socketio/backer/27/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/28/website" target="_blank"><img src="https://opencollective.com/socketio/backer/28/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/backer/29/website" target="_blank"><img src="https://opencollective.com/socketio/backer/29/avatar.svg"></a>
+
+
+## Sponsors
+
+Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/socketio#sponsor)]
+
+<a href="https://opencollective.com/socketio/sponsor/0/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/1/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/1/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/2/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/2/avatar.svg"></a>
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+<a href="https://opencollective.com/socketio/sponsor/5/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/5/avatar.svg"></a>
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+<a href="https://opencollective.com/socketio/sponsor/13/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/13/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/14/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/14/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/15/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/15/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/16/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/16/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/17/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/17/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/18/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/18/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/19/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/19/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/20/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/20/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/21/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/21/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/22/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/22/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/23/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/23/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/24/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/24/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/25/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/25/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/26/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/26/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/27/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/27/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/28/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/28/avatar.svg"></a>
+<a href="https://opencollective.com/socketio/sponsor/29/website" target="_blank"><img src="https://opencollective.com/socketio/sponsor/29/avatar.svg"></a>
+
+
+## License
+
+[MIT](LICENSE)
diff --git a/helloworld/node_modules/socket.io/lib/client.js b/helloworld/node_modules/socket.io/lib/client.js
new file mode 100755
index 0000000..32d179f
--- /dev/null
+++ b/helloworld/node_modules/socket.io/lib/client.js
@@ -0,0 +1,273 @@
+
+/**
+ * Module dependencies.
+ */
+
+var parser = require('socket.io-parser');
+var debug = require('debug')('socket.io:client');
+var url = require('url');
+
+/**
+ * Module exports.
+ */
+
+module.exports = Client;
+
+/**
+ * Client constructor.
+ *
+ * @param {Server} server instance
+ * @param {Socket} conn
+ * @api private
+ */
+
+function Client(server, conn){
+  this.server = server;
+  this.conn = conn;
+  this.encoder = server.encoder;
+  this.decoder = new server.parser.Decoder();
+  this.id = conn.id;
+  this.request = conn.request;
+  this.setup();
+  this.sockets = {};
+  this.nsps = {};
+  this.connectBuffer = [];
+}
+
+/**
+ * Sets up event listeners.
+ *
+ * @api private
+ */
+
+Client.prototype.setup = function(){
+  this.onclose = this.onclose.bind(this);
+  this.ondata = this.ondata.bind(this);
+  this.onerror = this.onerror.bind(this);
+  this.ondecoded = this.ondecoded.bind(this);
+
+  this.decoder.on('decoded', this.ondecoded);
+  this.conn.on('data', this.ondata);
+  this.conn.on('error', this.onerror);
+  this.conn.on('close', this.onclose);
+};
+
+/**
+ * Connects a client to a namespace.
+ *
+ * @param {String} name namespace
+ * @param {Object} query the query parameters
+ * @api private
+ */
+
+Client.prototype.connect = function(name, query){
+  if (this.server.nsps[name]) {
+    debug('connecting to namespace %s', name);
+    return this.doConnect(name, query);
+  }
+
+  this.server.checkNamespace(name, query, (dynamicNsp) => {
+    if (dynamicNsp) {
+      debug('dynamic namespace %s was created', dynamicNsp.name);
+      this.doConnect(name, query);
+    } else {
+      debug('creation of namespace %s was denied', name);
+      this.packet({ type: parser.ERROR, nsp: name, data: 'Invalid namespace' });
+    }
+  });
+};
+
+/**
+ * Connects a client to a namespace.
+ *
+ * @param {String} name namespace
+ * @param {String} query the query parameters
+ * @api private
+ */
+
+Client.prototype.doConnect = function(name, query){
+  var nsp = this.server.of(name);
+
+  if ('/' != name && !this.nsps['/']) {
+    this.connectBuffer.push(name);
+    return;
+  }
+
+  var self = this;
+  var socket = nsp.add(this, query, function(){
+    self.sockets[socket.id] = socket;
+    self.nsps[nsp.name] = socket;
+
+    if ('/' == nsp.name && self.connectBuffer.length > 0) {
+      self.connectBuffer.forEach(self.connect, self);
+      self.connectBuffer = [];
+    }
+  });
+};
+
+/**
+ * Disconnects from all namespaces and closes transport.
+ *
+ * @api private
+ */
+
+Client.prototype.disconnect = function(){
+  for (var id in this.sockets) {
+    if (this.sockets.hasOwnProperty(id)) {
+      this.sockets[id].disconnect();
+    }
+  }
+  this.sockets = {};
+  this.close();
+};
+
+/**
+ * Removes a socket. Called by each `Socket`.
+ *
+ * @api private
+ */
+
+Client.prototype.remove = function(socket){
+  if (this.sockets.hasOwnProperty(socket.id)) {
+    var nsp = this.sockets[socket.id].nsp.name;
+    delete this.sockets[socket.id];
+    delete this.nsps[nsp];
+  } else {
+    debug('ignoring remove for %s', socket.id);
+  }
+};
+
+/**
+ * Closes the underlying connection.
+ *
+ * @api private
+ */
+
+Client.prototype.close = function(){
+  if ('open' == this.conn.readyState) {
+    debug('forcing transport close');
+    this.conn.close();
+    this.onclose('forced server close');
+  }
+};
+
+/**
+ * Writes a packet to the transport.
+ *
+ * @param {Object} packet object
+ * @param {Object} opts
+ * @api private
+ */
+
+Client.prototype.packet = function(packet, opts){
+  opts = opts || {};
+  var self = this;
+
+  // this writes to the actual connection
+  function writeToEngine(encodedPackets) {
+    if (opts.volatile && !self.conn.transport.writable) return;
+    for (var i = 0; i < encodedPackets.length; i++) {
+      self.conn.write(encodedPackets[i], { compress: opts.compress });
+    }
+  }
+
+  if ('open' == this.conn.readyState) {
+    debug('writing packet %j', packet);
+    if (!opts.preEncoded) { // not broadcasting, need to encode
+      this.encoder.encode(packet, writeToEngine); // encode, then write results to engine
+    } else { // a broadcast pre-encodes a packet
+      writeToEngine(packet);
+    }
+  } else {
+    debug('ignoring packet write %j', packet);
+  }
+};
+
+/**
+ * Called with incoming transport data.
+ *
+ * @api private
+ */
+
+Client.prototype.ondata = function(data){
+  // try/catch is needed for protocol violations (GH-1880)
+  try {
+    this.decoder.add(data);
+  } catch(e) {
+    this.onerror(e);
+  }
+};
+
+/**
+ * Called when parser fully decodes a packet.
+ *
+ * @api private
+ */
+
+Client.prototype.ondecoded = function(packet) {
+  if (parser.CONNECT == packet.type) {
+    this.connect(url.parse(packet.nsp).pathname, url.parse(packet.nsp, true).query);
+  } else {
+    var socket = this.nsps[packet.nsp];
+    if (socket) {
+      process.nextTick(function() {
+        socket.onpacket(packet);
+      });
+    } else {
+      debug('no socket for namespace %s', packet.nsp);
+    }
+  }
+};
+
+/**
+ * Handles an error.
+ *
+ * @param {Object} err object
+ * @api private
+ */
+
+Client.prototype.onerror = function(err){
+  for (var id in this.sockets) {
+    if (this.sockets.hasOwnProperty(id)) {
+      this.sockets[id].onerror(err);
+    }
+  }
+  this.conn.close();
+};
+
+/**
+ * Called upon transport close.
+ *
+ * @param {String} reason
+ * @api private
+ */
+
+Client.prototype.onclose = function(reason){
+  debug('client close with reason %s', reason);
+
+  // ignore a potential subsequent `close` event
+  this.destroy();
+
+  // `nsps` and `sockets` are cleaned up seamlessly
+  for (var id in this.sockets) {
+    if (this.sockets.hasOwnProperty(id)) {
+      this.sockets[id].onclose(reason);
+    }
+  }
+  this.sockets = {};
+
+  this.decoder.destroy(); // clean up decoder
+};
+
+/**
+ * Cleans up event listeners.
+ *
+ * @api private
+ */
+
+Client.prototype.destroy = function(){
+  this.conn.removeListener('data', this.ondata);
+  this.conn.removeListener('error', this.onerror);
+  this.conn.removeListener('close', this.onclose);
+  this.decoder.removeListener('decoded', this.ondecoded);
+};
diff --git a/helloworld/node_modules/socket.io/lib/index.js b/helloworld/node_modules/socket.io/lib/index.js
new file mode 100755
index 0000000..5287e4e
--- /dev/null
+++ b/helloworld/node_modules/socket.io/lib/index.js
@@ -0,0 +1,523 @@
+'use strict';
+
+/**
+ * Module dependencies.
+ */
+
+var http = require('http');
+var read = require('fs').readFileSync;
+var path = require('path');
+var exists = require('fs').existsSync;
+var engine = require('engine.io');
+var clientVersion = require('socket.io-client/package.json').version;
+var Client = require('./client');
+var Emitter = require('events').EventEmitter;
+var Namespace = require('./namespace');
+var ParentNamespace = require('./parent-namespace');
+var Adapter = require('socket.io-adapter');
+var parser = require('socket.io-parser');
+var debug = require('debug')('socket.io:server');
+var url = require('url');
+
+/**
+ * Module exports.
+ */
+
+module.exports = Server;
+
+/**
+ * Socket.IO client source.
+ */
+
+var clientSource = undefined;
+var clientSourceMap = undefined;
+
+/**
+ * Server constructor.
+ *
+ * @param {http.Server|Number|Object} srv http server, port or options
+ * @param {Object} [opts]
+ * @api public
+ */
+
+function Server(srv, opts){
+  if (!(this instanceof Server)) return new Server(srv, opts);
+  if ('object' == typeof srv && srv instanceof Object && !srv.listen) {
+    opts = srv;
+    srv = null;
+  }
+  opts = opts || {};
+  this.nsps = {};
+  this.parentNsps = new Map();
+  this.path(opts.path || '/socket.io');
+  this.serveClient(false !== opts.serveClient);
+  this.parser = opts.parser || parser;
+  this.encoder = new this.parser.Encoder();
+  this.adapter(opts.adapter || Adapter);
+  this.origins(opts.origins || '*:*');
+  this.sockets = this.of('/');
+  if (srv) this.attach(srv, opts);
+}
+
+/**
+ * Server request verification function, that checks for allowed origins
+ *
+ * @param {http.IncomingMessage} req request
+ * @param {Function} fn callback to be called with the result: `fn(err, success)`
+ */
+
+Server.prototype.checkRequest = function(req, fn) {
+  var origin = req.headers.origin || req.headers.referer;
+
+  // file:// URLs produce a null Origin which can't be authorized via echo-back
+  if ('null' == origin || null == origin) origin = '*';
+
+  if (!!origin && typeof(this._origins) == 'function') return this._origins(origin, fn);
+  if (this._origins.indexOf('*:*') !== -1) return fn(null, true);
+  if (origin) {
+    try {
+      var parts = url.parse(origin);
+      var defaultPort = 'https:' == parts.protocol ? 443 : 80;
+      parts.port = parts.port != null
+        ? parts.port
+        : defaultPort;
+      var ok =
+        ~this._origins.indexOf(parts.protocol + '//' + parts.hostname + ':' + parts.port) ||
+        ~this._origins.indexOf(parts.hostname + ':' + parts.port) ||
+        ~this._origins.indexOf(parts.hostname + ':*') ||
+        ~this._origins.indexOf('*:' + parts.port);
+      debug('origin %s is %svalid', origin, !!ok ? '' : 'not ');
+      return fn(null, !!ok);
+    } catch (ex) {
+    }
+  }
+  fn(null, false);
+};
+
+/**
+ * Sets/gets whether client code is being served.
+ *
+ * @param {Boolean} v whether to serve client code
+ * @return {Server|Boolean} self when setting or value when getting
+ * @api public
+ */
+
+Server.prototype.serveClient = function(v){
+  if (!arguments.length) return this._serveClient;
+  this._serveClient = v;
+  var resolvePath = function(file){
+    var filepath = path.resolve(__dirname, './../../', file);
+    if (exists(filepath)) {
+      return filepath;
+    }
+    return require.resolve(file);
+  };
+  if (v && !clientSource) {
+    clientSource = read(resolvePath( 'socket.io-client/dist/socket.io.js'), 'utf-8');
+    try {
+      clientSourceMap = read(resolvePath( 'socket.io-client/dist/socket.io.js.map'), 'utf-8');
+    } catch(err) {
+      debug('could not load sourcemap file');
+    }
+  }
+  return this;
+};
+
+/**
+ * Old settings for backwards compatibility
+ */
+
+var oldSettings = {
+  "transports": "transports",
+  "heartbeat timeout": "pingTimeout",
+  "heartbeat interval": "pingInterval",
+  "destroy buffer size": "maxHttpBufferSize"
+};
+
+/**
+ * Backwards compatibility.
+ *
+ * @api public
+ */
+
+Server.prototype.set = function(key, val){
+  if ('authorization' == key && val) {
+    this.use(function(socket, next) {
+      val(socket.request, function(err, authorized) {
+        if (err) return next(new Error(err));
+        if (!authorized) return next(new Error('Not authorized'));
+        next();
+      });
+    });
+  } else if ('origins' == key && val) {
+    this.origins(val);
+  } else if ('resource' == key) {
+    this.path(val);
+  } else if (oldSettings[key] && this.eio[oldSettings[key]]) {
+    this.eio[oldSettings[key]] = val;
+  } else {
+    console.error('Option %s is not valid. Please refer to the README.', key);
+  }
+
+  return this;
+};
+
+/**
+ * Executes the middleware for an incoming namespace not already created on the server.
+ *
+ * @param {String} name name of incoming namespace
+ * @param {Object} query the query parameters
+ * @param {Function} fn callback
+ * @api private
+ */
+
+Server.prototype.checkNamespace = function(name, query, fn){
+  if (this.parentNsps.size === 0) return fn(false);
+
+  const keysIterator = this.parentNsps.keys();
+
+  const run = () => {
+    let nextFn = keysIterator.next();
+    if (nextFn.done) {
+      return fn(false);
+    }
+    nextFn.value(name, query, (err, allow) => {
+      if (err || !allow) {
+        run();
+      } else {
+        fn(this.parentNsps.get(nextFn.value).createChild(name));
+      }
+    });
+  };
+
+  run();
+};
+
+/**
+ * Sets the client serving path.
+ *
+ * @param {String} v pathname
+ * @return {Server|String} self when setting or value when getting
+ * @api public
+ */
+
+Server.prototype.path = function(v){
+  if (!arguments.length) return this._path;
+  this._path = v.replace(/\/$/, '');
+  return this;
+};
+
+/**
+ * Sets the adapter for rooms.
+ *
+ * @param {Adapter} v pathname
+ * @return {Server|Adapter} self when setting or value when getting
+ * @api public
+ */
+
+Server.prototype.adapter = function(v){
+  if (!arguments.length) return this._adapter;
+  this._adapter = v;
+  for (var i in this.nsps) {
+    if (this.nsps.hasOwnProperty(i)) {
+      this.nsps[i].initAdapter();
+    }
+  }
+  return this;
+};
+
+/**
+ * Sets the allowed origins for requests.
+ *
+ * @param {String|String[]} v origins
+ * @return {Server|Adapter} self when setting or value when getting
+ * @api public
+ */
+
+Server.prototype.origins = function(v){
+  if (!arguments.length) return this._origins;
+
+  this._origins = v;
+  return this;
+};
+
+/**
+ * Attaches socket.io to a server or port.
+ *
+ * @param {http.Server|Number} server or port
+ * @param {Object} options passed to engine.io
+ * @return {Server} self
+ * @api public
+ */
+
+Server.prototype.listen =
+Server.prototype.attach = function(srv, opts){
+  if ('function' == typeof srv) {
+    var msg = 'You are trying to attach socket.io to an express ' +
+    'request handler function. Please pass a http.Server instance.';
+    throw new Error(msg);
+  }
+
+  // handle a port as a string
+  if (Number(srv) == srv) {
+    srv = Number(srv);
+  }
+
+  if ('number' == typeof srv) {
+    debug('creating http server and binding to %d', srv);
+    var port = srv;
+    srv = http.Server(function(req, res){
+      res.writeHead(404);
+      res.end();
+    });
+    srv.listen(port);
+
+  }
+
+  // set engine.io path to `/socket.io`
+  opts = opts || {};
+  opts.path = opts.path || this.path();
+  // set origins verification
+  opts.allowRequest = opts.allowRequest || this.checkRequest.bind(this);
+
+  if (this.sockets.fns.length > 0) {
+    this.initEngine(srv, opts);
+    return this;
+  }
+
+  var self = this;
+  var connectPacket = { type: parser.CONNECT, nsp: '/' };
+  this.encoder.encode(connectPacket, function (encodedPacket){
+    // the CONNECT packet will be merged with Engine.IO handshake,
+    // to reduce the number of round trips
+    opts.initialPacket = encodedPacket;
+
+    self.initEngine(srv, opts);
+  });
+  return this;
+};
+
+/**
+ * Initialize engine
+ *
+ * @param {Object} options passed to engine.io
+ * @api private
+ */
+
+Server.prototype.initEngine = function(srv, opts){
+  // initialize engine
+  debug('creating engine.io instance with opts %j', opts);
+  this.eio = engine.attach(srv, opts);
+
+  // attach static file serving
+  if (this._serveClient) this.attachServe(srv);
+
+  // Export http server
+  this.httpServer = srv;
+
+  // bind to engine events
+  this.bind(this.eio);
+};
+
+/**
+ * Attaches the static file serving.
+ *
+ * @param {Function|http.Server} srv http server
+ * @api private
+ */
+
+Server.prototype.attachServe = function(srv){
+  debug('attaching client serving req handler');
+  var url = this._path + '/socket.io.js';
+  var urlMap = this._path + '/socket.io.js.map';
+  var evs = srv.listeners('request').slice(0);
+  var self = this;
+  srv.removeAllListeners('request');
+  srv.on('request', function(req, res) {
+    if (0 === req.url.indexOf(urlMap)) {
+      self.serveMap(req, res);
+    } else if (0 === req.url.indexOf(url)) {
+      self.serve(req, res);
+    } else {
+      for (var i = 0; i < evs.length; i++) {
+        evs[i].call(srv, req, res);
+      }
+    }
+  });
+};
+
+/**
+ * Handles a request serving `/socket.io.js`
+ *
+ * @param {http.Request} req
+ * @param {http.Response} res
+ * @api private
+ */
+
+Server.prototype.serve = function(req, res){
+  // Per the standard, ETags must be quoted:
+  // https://tools.ietf.org/html/rfc7232#section-2.3
+  var expectedEtag = '"' + clientVersion + '"';
+
+  var etag = req.headers['if-none-match'];
+  if (etag) {
+    if (expectedEtag == etag) {
+      debug('serve client 304');
+      res.writeHead(304);
+      res.end();
+      return;
+    }
+  }
+
+  debug('serve client source');
+  res.setHeader("Cache-Control", "public, max-age=0");
+  res.setHeader('Content-Type', 'application/javascript');
+  res.setHeader('ETag', expectedEtag);
+  res.writeHead(200);
+  res.end(clientSource);
+};
+
+/**
+ * Handles a request serving `/socket.io.js.map`
+ *
+ * @param {http.Request} req
+ * @param {http.Response} res
+ * @api private
+ */
+
+Server.prototype.serveMap = function(req, res){
+  // Per the standard, ETags must be quoted:
+  // https://tools.ietf.org/html/rfc7232#section-2.3
+  var expectedEtag = '"' + clientVersion + '"';
+
+  var etag = req.headers['if-none-match'];
+  if (etag) {
+    if (expectedEtag == etag) {
+      debug('serve client 304');
+      res.writeHead(304);
+      res.end();
+      return;
+    }
+  }
+
+  debug('serve client sourcemap');
+  res.setHeader('Content-Type', 'application/json');
+  res.setHeader('ETag', expectedEtag);
+  res.writeHead(200);
+  res.end(clientSourceMap);
+};
+
+/**
+ * Binds socket.io to an engine.io instance.
+ *
+ * @param {engine.Server} engine engine.io (or compatible) server
+ * @return {Server} self
+ * @api public
+ */
+
+Server.prototype.bind = function(engine){
+  this.engine = engine;
+  this.engine.on('connection', this.onconnection.bind(this));
+  return this;
+};
+
+/**
+ * Called with each incoming transport connection.
+ *
+ * @param {engine.Socket} conn
+ * @return {Server} self
+ * @api public
+ */
+
+Server.prototype.onconnection = function(conn){
+  debug('incoming connection with id %s', conn.id);
+  var client = new Client(this, conn);
+  client.connect('/');
+  return this;
+};
+
+/**
+ * Looks up a namespace.
+ *
+ * @param {String|RegExp|Function} name nsp name
+ * @param {Function} [fn] optional, nsp `connection` ev handler
+ * @api public
+ */
+
+Server.prototype.of = function(name, fn){
+  if (typeof name === 'function' || name instanceof RegExp) {
+    const parentNsp = new ParentNamespace(this);
+    debug('initializing parent namespace %s', parentNsp.name);
+    if (typeof name === 'function') {
+      this.parentNsps.set(name, parentNsp);
+    } else {
+      this.parentNsps.set((nsp, conn, next) => next(null, name.test(nsp)), parentNsp);
+    }
+    if (fn) parentNsp.on('connect', fn);
+    return parentNsp;
+  }
+
+  if (String(name)[0] !== '/') name = '/' + name;
+
+  var nsp = this.nsps[name];
+  if (!nsp) {
+    debug('initializing namespace %s', name);
+    nsp = new Namespace(this, name);
+    this.nsps[name] = nsp;
+  }
+  if (fn) nsp.on('connect', fn);
+  return nsp;
+};
+
+/**
+ * Closes server connection
+ *
+ * @param {Function} [fn] optional, called as `fn([err])` on error OR all conns closed
+ * @api public
+ */
+
+Server.prototype.close = function(fn){
+  for (var id in this.nsps['/'].sockets) {
+    if (this.nsps['/'].sockets.hasOwnProperty(id)) {
+      this.nsps['/'].sockets[id].onclose();
+    }
+  }
+
+  this.engine.close();
+
+  if (this.httpServer) {
+    this.httpServer.close(fn);
+  } else {
+    fn && fn();
+  }
+};
+
+/**
+ * Expose main namespace (/).
+ */
+
+var emitterMethods = Object.keys(Emitter.prototype).filter(function(key){
+  return typeof Emitter.prototype[key] === 'function';
+});
+
+emitterMethods.concat(['to', 'in', 'use', 'send', 'write', 'clients', 'compress', 'binary']).forEach(function(fn){
+  Server.prototype[fn] = function(){
+    return this.sockets[fn].apply(this.sockets, arguments);
+  };
+});
+
+Namespace.flags.forEach(function(flag){
+  Object.defineProperty(Server.prototype, flag, {
+    get: function() {
+      this.sockets.flags = this.sockets.flags || {};
+      this.sockets.flags[flag] = true;
+      return this;
+    }
+  });
+});
+
+/**
+ * BC with `io.listen`
+ */
+
+Server.listen = Server;
diff --git a/helloworld/node_modules/socket.io/lib/namespace.js b/helloworld/node_modules/socket.io/lib/namespace.js
new file mode 100755
index 0000000..bca8a3e
--- /dev/null
+++ b/helloworld/node_modules/socket.io/lib/namespace.js
@@ -0,0 +1,299 @@
+
+/**
+ * Module dependencies.
+ */
+
+var Socket = require('./socket');
+var Emitter = require('events').EventEmitter;
+var parser = require('socket.io-parser');
+var hasBin = require('has-binary2');
+var debug = require('debug')('socket.io:namespace');
+
+/**
+ * Module exports.
+ */
+
+module.exports = exports = Namespace;
+
+/**
+ * Blacklisted events.
+ */
+
+exports.events = [
+  'connect',    // for symmetry with client
+  'connection',
+  'newListener'
+];
+
+/**
+ * Flags.
+ */
+
+exports.flags = [
+  'json',
+  'volatile',
+  'local'
+];
+
+/**
+ * `EventEmitter#emit` reference.
+ */
+
+var emit = Emitter.prototype.emit;
+
+/**
+ * Namespace constructor.
+ *
+ * @param {Server} server instance
+ * @param {Socket} name
+ * @api private
+ */
+
+function Namespace(server, name){
+  this.name = name;
+  this.server = server;
+  this.sockets = {};
+  this.connected = {};
+  this.fns = [];
+  this.ids = 0;
+  this.rooms = [];
+  this.flags = {};
+  this.initAdapter();
+}
+
+/**
+ * Inherits from `EventEmitter`.
+ */
+
+Namespace.prototype.__proto__ = Emitter.prototype;
+
+/**
+ * Apply flags from `Socket`.
+ */
+
+exports.flags.forEach(function(flag){
+  Object.defineProperty(Namespace.prototype, flag, {
+    get: function() {
+      this.flags[flag] = true;
+      return this;
+    }
+  });
+});
+
+/**
+ * Initializes the `Adapter` for this nsp.
+ * Run upon changing adapter by `Server#adapter`
+ * in addition to the constructor.
+ *
+ * @api private
+ */
+
+Namespace.prototype.initAdapter = function(){
+  this.adapter = new (this.server.adapter())(this);
+};
+
+/**
+ * Sets up namespace middleware.
+ *
+ * @return {Namespace} self
+ * @api public
+ */
+
+Namespace.prototype.use = function(fn){
+  if (this.server.eio && this.name === '/') {
+    debug('removing initial packet');
+    delete this.server.eio.initialPacket;
+  }
+  this.fns.push(fn);
+  return this;
+};
+
+/**
+ * Executes the middleware for an incoming client.
+ *
+ * @param {Socket} socket that will get added
+ * @param {Function} fn last fn call in the middleware
+ * @api private
+ */
+
+Namespace.prototype.run = function(socket, fn){
+  var fns = this.fns.slice(0);
+  if (!fns.length) return fn(null);
+
+  function run(i){
+    fns[i](socket, function(err){
+      // upon error, short-circuit
+      if (err) return fn(err);
+
+      // if no middleware left, summon callback
+      if (!fns[i + 1]) return fn(null);
+
+      // go on to next
+      run(i + 1);
+    });
+  }
+
+  run(0);
+};
+
+/**
+ * Targets a room when emitting.
+ *
+ * @param {String} name
+ * @return {Namespace} self
+ * @api public
+ */
+
+Namespace.prototype.to =
+Namespace.prototype.in = function(name){
+  if (!~this.rooms.indexOf(name)) this.rooms.push(name);
+  return this;
+};
+
+/**
+ * Adds a new client.
+ *
+ * @return {Socket}
+ * @api private
+ */
+
+Namespace.prototype.add = function(client, query, fn){
+  debug('adding socket to nsp %s', this.name);
+  var socket = new Socket(this, client, query);
+  var self = this;
+  this.run(socket, function(err){
+    process.nextTick(function(){
+      if ('open' == client.conn.readyState) {
+        if (err) return socket.error(err.data || err.message);
+
+        // track socket
+        self.sockets[socket.id] = socket;
+
+        // it's paramount that the internal `onconnect` logic
+        // fires before user-set events to prevent state order
+        // violations (such as a disconnection before the connection
+        // logic is complete)
+        socket.onconnect();
+        if (fn) fn();
+
+        // fire user-set events
+        self.emit('connect', socket);
+        self.emit('connection', socket);
+      } else {
+        debug('next called after client was closed - ignoring socket');
+      }
+    });
+  });
+  return socket;
+};
+
+/**
+ * Removes a client. Called by each `Socket`.
+ *
+ * @api private
+ */
+
+Namespace.prototype.remove = function(socket){
+  if (this.sockets.hasOwnProperty(socket.id)) {
+    delete this.sockets[socket.id];
+  } else {
+    debug('ignoring remove for %s', socket.id);
+  }
+};
+
+/**
+ * Emits to all clients.
+ *
+ * @return {Namespace} self
+ * @api public
+ */
+
+Namespace.prototype.emit = function(ev){
+  if (~exports.events.indexOf(ev)) {
+    emit.apply(this, arguments);
+    return this;
+  }
+  // set up packet object
+  var args = Array.prototype.slice.call(arguments);
+  var packet = {
+    type: (this.flags.binary !== undefined ? this.flags.binary : hasBin(args)) ? parser.BINARY_EVENT : parser.EVENT,
+    data: args
+  };
+
+  if ('function' == typeof args[args.length - 1]) {
+    throw new Error('Callbacks are not supported when broadcasting');
+  }
+
+  var rooms = this.rooms.slice(0);
+  var flags = Object.assign({}, this.flags);
+
+  // reset flags
+  this.rooms = [];
+  this.flags = {};
+
+  this.adapter.broadcast(packet, {
+    rooms: rooms,
+    flags: flags
+  });
+
+  return this;
+};
+
+/**
+ * Sends a `message` event to all clients.
+ *
+ * @return {Namespace} self
+ * @api public
+ */
+
+Namespace.prototype.send =
+Namespace.prototype.write = function(){
+  var args = Array.prototype.slice.call(arguments);
+  args.unshift('message');
+  this.emit.apply(this, args);
+  return this;
+};
+
+/**
+ * Gets a list of clients.
+ *
+ * @return {Namespace} self
+ * @api public
+ */
+
+Namespace.prototype.clients = function(fn){
+  if(!this.adapter){
+    throw new Error('No adapter for this namespace, are you trying to get the list of clients of a dynamic namespace?')
+  }
+  this.adapter.clients(this.rooms, fn);
+  // reset rooms for scenario:
+  // .in('room').clients() (GH-1978)
+  this.rooms = [];
+  return this;
+};
+
+/**
+ * Sets the compress flag.
+ *
+ * @param {Boolean} compress if `true`, compresses the sending data
+ * @return {Socket} self
+ * @api public
+ */
+
+Namespace.prototype.compress = function(compress){
+  this.flags.compress = compress;
+  return this;
+};
+
+/**
+ * Sets the binary flag
+ *
+ * @param {Boolean} Encode as if it has binary data if `true`, Encode as if it doesnt have binary data if `false`
+ * @return {Socket} self
+ * @api public
+ */
+
+ Namespace.prototype.binary = function (binary) {
+   this.flags.binary = binary;
+   return this;
+ };
diff --git a/helloworld/node_modules/socket.io/lib/parent-namespace.js b/helloworld/node_modules/socket.io/lib/parent-namespace.js
new file mode 100755
index 0000000..5a2b4fa
--- /dev/null
+++ b/helloworld/node_modules/socket.io/lib/parent-namespace.js
@@ -0,0 +1,39 @@
+'use strict';
+
+const Namespace = require('./namespace');
+
+let count = 0;
+
+class ParentNamespace extends Namespace {
+
+  constructor(server) {
+    super(server, '/_' + (count++));
+    this.children = new Set();
+  }
+
+  initAdapter() {}
+
+  emit() {
+    const args = Array.prototype.slice.call(arguments);
+
+    this.children.forEach(nsp => {
+      nsp.rooms = this.rooms;
+      nsp.flags = this.flags;
+      nsp.emit.apply(nsp, args);
+    });
+    this.rooms = [];
+    this.flags = {};
+  }
+
+  createChild(name) {
+    const namespace = new Namespace(this.server, name);
+    namespace.fns = this.fns.slice(0);
+    this.listeners('connect').forEach(listener => namespace.on('connect', listener));
+    this.listeners('connection').forEach(listener => namespace.on('connection', listener));
+    this.children.add(namespace);
+    this.server.nsps[name] = namespace;
+    return namespace;
+  }
+}
+
+module.exports = ParentNamespace;
diff --git a/helloworld/node_modules/socket.io/lib/socket.js b/helloworld/node_modules/socket.io/lib/socket.js
new file mode 100755
index 0000000..9a96929
--- /dev/null
+++ b/helloworld/node_modules/socket.io/lib/socket.js
@@ -0,0 +1,572 @@
+
+/**
+ * Module dependencies.
+ */
+
+var Emitter = require('events').EventEmitter;
+var parser = require('socket.io-parser');
+var hasBin = require('has-binary2');
+var url = require('url');
+var debug = require('debug')('socket.io:socket');
+
+/**
+ * Module exports.
+ */
+
+module.exports = exports = Socket;
+
+/**
+ * Blacklisted events.
+ *
+ * @api public
+ */
+
+exports.events = [
+  'error',
+  'connect',
+  'disconnect',
+  'disconnecting',
+  'newListener',
+  'removeListener'
+];
+
+/**
+ * Flags.
+ *
+ * @api private
+ */
+
+var flags = [
+  'json',
+  'volatile',
+  'broadcast',
+  'local'
+];
+
+/**
+ * `EventEmitter#emit` reference.
+ */
+
+var emit = Emitter.prototype.emit;
+
+/**
+ * Interface to a `Client` for a given `Namespace`.
+ *
+ * @param {Namespace} nsp
+ * @param {Client} client
+ * @api public
+ */
+
+function Socket(nsp, client, query){
+  this.nsp = nsp;
+  this.server = nsp.server;
+  this.adapter = this.nsp.adapter;
+  this.id = nsp.name !== '/' ? nsp.name + '#' + client.id : client.id;
+  this.client = client;
+  this.conn = client.conn;
+  this.rooms = {};
+  this.acks = {};
+  this.connected = true;
+  this.disconnected = false;
+  this.handshake = this.buildHandshake(query);
+  this.fns = [];
+  this.flags = {};
+  this._rooms = [];
+}
+
+/**
+ * Inherits from `EventEmitter`.
+ */
+
+Socket.prototype.__proto__ = Emitter.prototype;
+
+/**
+ * Apply flags from `Socket`.
+ */
+
+flags.forEach(function(flag){
+  Object.defineProperty(Socket.prototype, flag, {
+    get: function() {
+      this.flags[flag] = true;
+      return this;
+    }
+  });
+});
+
+/**
+ * `request` engine.io shortcut.
+ *
+ * @api public
+ */
+
+Object.defineProperty(Socket.prototype, 'request', {
+  get: function() {
+    return this.conn.request;
+  }
+});
+
+/**
+ * Builds the `handshake` BC object
+ *
+ * @api private
+ */
+
+Socket.prototype.buildHandshake = function(query){
+  var self = this;
+  function buildQuery(){
+    var requestQuery = url.parse(self.request.url, true).query;
+    //if socket-specific query exist, replace query strings in requestQuery
+    return Object.assign({}, query, requestQuery);
+  }
+  return {
+    headers: this.request.headers,
+    time: (new Date) + '',
+    address: this.conn.remoteAddress,
+    xdomain: !!this.request.headers.origin,
+    secure: !!this.request.connection.encrypted,
+    issued: +(new Date),
+    url: this.request.url,
+    query: buildQuery()
+  };
+};
+
+/**
+ * Emits to this client.
+ *
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.emit = function(ev){
+  if (~exports.events.indexOf(ev)) {
+    emit.apply(this, arguments);
+    return this;
+  }
+
+  var args = Array.prototype.slice.call(arguments);
+  var packet = {
+    type: (this.flags.binary !== undefined ? this.flags.binary : hasBin(args)) ? parser.BINARY_EVENT : parser.EVENT,
+    data: args
+  };
+
+  // access last argument to see if it's an ACK callback
+  if (typeof args[args.length - 1] === 'function') {
+    if (this._rooms.length || this.flags.broadcast) {
+      throw new Error('Callbacks are not supported when broadcasting');
+    }
+
+    debug('emitting packet with ack id %d', this.nsp.ids);
+    this.acks[this.nsp.ids] = args.pop();
+    packet.id = this.nsp.ids++;
+  }
+
+  var rooms = this._rooms.slice(0);
+  var flags = Object.assign({}, this.flags);
+
+  // reset flags
+  this._rooms = [];
+  this.flags = {};
+
+  if (rooms.length || flags.broadcast) {
+    this.adapter.broadcast(packet, {
+      except: [this.id],
+      rooms: rooms,
+      flags: flags
+    });
+  } else {
+    // dispatch packet
+    this.packet(packet, flags);
+  }
+  return this;
+};
+
+/**
+ * Targets a room when broadcasting.
+ *
+ * @param {String} name
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.to =
+Socket.prototype.in = function(name){
+  if (!~this._rooms.indexOf(name)) this._rooms.push(name);
+  return this;
+};
+
+/**
+ * Sends a `message` event.
+ *
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.send =
+Socket.prototype.write = function(){
+  var args = Array.prototype.slice.call(arguments);
+  args.unshift('message');
+  this.emit.apply(this, args);
+  return this;
+};
+
+/**
+ * Writes a packet.
+ *
+ * @param {Object} packet object
+ * @param {Object} opts options
+ * @api private
+ */
+
+Socket.prototype.packet = function(packet, opts){
+  packet.nsp = this.nsp.name;
+  opts = opts || {};
+  opts.compress = false !== opts.compress;
+  this.client.packet(packet, opts);
+};
+
+/**
+ * Joins a room.
+ *
+ * @param {String|Array} room or array of rooms
+ * @param {Function} fn optional, callback
+ * @return {Socket} self
+ * @api private
+ */
+
+Socket.prototype.join = function(rooms, fn){
+  debug('joining room %s', rooms);
+  var self = this;
+  if (!Array.isArray(rooms)) {
+    rooms = [rooms];
+  }
+  rooms = rooms.filter(function (room) {
+    return !self.rooms.hasOwnProperty(room);
+  });
+  if (!rooms.length) {
+    fn && fn(null);
+    return this;
+  }
+  this.adapter.addAll(this.id, rooms, function(err){
+    if (err) return fn && fn(err);
+    debug('joined room %s', rooms);
+    rooms.forEach(function (room) {
+      self.rooms[room] = room;
+    });
+    fn && fn(null);
+  });
+  return this;
+};
+
+/**
+ * Leaves a room.
+ *
+ * @param {String} room
+ * @param {Function} fn optional, callback
+ * @return {Socket} self
+ * @api private
+ */
+
+Socket.prototype.leave = function(room, fn){
+  debug('leave room %s', room);
+  var self = this;
+  this.adapter.del(this.id, room, function(err){
+    if (err) return fn && fn(err);
+    debug('left room %s', room);
+    delete self.rooms[room];
+    fn && fn(null);
+  });
+  return this;
+};
+
+/**
+ * Leave all rooms.
+ *
+ * @api private
+ */
+
+Socket.prototype.leaveAll = function(){
+  this.adapter.delAll(this.id);
+  this.rooms = {};
+};
+
+/**
+ * Called by `Namespace` upon successful
+ * middleware execution (ie: authorization).
+ * Socket is added to namespace array before
+ * call to join, so adapters can access it.
+ *
+ * @api private
+ */
+
+Socket.prototype.onconnect = function(){
+  debug('socket connected - writing packet');
+  this.nsp.connected[this.id] = this;
+  this.join(this.id);
+  var skip = this.nsp.name === '/' && this.nsp.fns.length === 0;
+  if (skip) {
+    debug('packet already sent in initial handshake');
+  } else {
+    this.packet({ type: parser.CONNECT });
+  }
+};
+
+/**
+ * Called with each packet. Called by `Client`.
+ *
+ * @param {Object} packet
+ * @api private
+ */
+
+Socket.prototype.onpacket = function(packet){
+  debug('got packet %j', packet);
+  switch (packet.type) {
+    case parser.EVENT:
+      this.onevent(packet);
+      break;
+
+    case parser.BINARY_EVENT:
+      this.onevent(packet);
+      break;
+
+    case parser.ACK:
+      this.onack(packet);
+      break;
+
+    case parser.BINARY_ACK:
+      this.onack(packet);
+      break;
+
+    case parser.DISCONNECT:
+      this.ondisconnect();
+      break;
+
+    case parser.ERROR:
+      this.onerror(new Error(packet.data));
+  }
+};
+
+/**
+ * Called upon event packet.
+ *
+ * @param {Object} packet object
+ * @api private
+ */
+
+Socket.prototype.onevent = function(packet){
+  var args = packet.data || [];
+  debug('emitting event %j', args);
+
+  if (null != packet.id) {
+    debug('attaching ack callback to event');
+    args.push(this.ack(packet.id));
+  }
+
+  this.dispatch(args);
+};
+
+/**
+ * Produces an ack callback to emit with an event.
+ *
+ * @param {Number} id packet id
+ * @api private
+ */
+
+Socket.prototype.ack = function(id){
+  var self = this;
+  var sent = false;
+  return function(){
+    // prevent double callbacks
+    if (sent) return;
+    var args = Array.prototype.slice.call(arguments);
+    debug('sending ack %j', args);
+
+    self.packet({
+      id: id,
+      type: hasBin(args) ? parser.BINARY_ACK : parser.ACK,
+      data: args
+    });
+
+    sent = true;
+  };
+};
+
+/**
+ * Called upon ack packet.
+ *
+ * @api private
+ */
+
+Socket.prototype.onack = function(packet){
+  var ack = this.acks[packet.id];
+  if ('function' == typeof ack) {
+    debug('calling ack %s with %j', packet.id, packet.data);
+    ack.apply(this, packet.data);
+    delete this.acks[packet.id];
+  } else {
+    debug('bad ack %s', packet.id);
+  }
+};
+
+/**
+ * Called upon client disconnect packet.
+ *
+ * @api private
+ */
+
+Socket.prototype.ondisconnect = function(){
+  debug('got disconnect packet');
+  this.onclose('client namespace disconnect');
+};
+
+/**
+ * Handles a client error.
+ *
+ * @api private
+ */
+
+Socket.prototype.onerror = function(err){
+  if (this.listeners('error').length) {
+    this.emit('error', err);
+  } else {
+    console.error('Missing error handler on `socket`.');
+    console.error(err.stack);
+  }
+};
+
+/**
+ * Called upon closing. Called by `Client`.
+ *
+ * @param {String} reason
+ * @throw {Error} optional error object
+ * @api private
+ */
+
+Socket.prototype.onclose = function(reason){
+  if (!this.connected) return this;
+  debug('closing socket - reason %s', reason);
+  this.emit('disconnecting', reason);
+  this.leaveAll();
+  this.nsp.remove(this);
+  this.client.remove(this);
+  this.connected = false;
+  this.disconnected = true;
+  delete this.nsp.connected[this.id];
+  this.emit('disconnect', reason);
+};
+
+/**
+ * Produces an `error` packet.
+ *
+ * @param {Object} err error object
+ * @api private
+ */
+
+Socket.prototype.error = function(err){
+  this.packet({ type: parser.ERROR, data: err });
+};
+
+/**
+ * Disconnects this client.
+ *
+ * @param {Boolean} close if `true`, closes the underlying connection
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.disconnect = function(close){
+  if (!this.connected) return this;
+  if (close) {
+    this.client.disconnect();
+  } else {
+    this.packet({ type: parser.DISCONNECT });
+    this.onclose('server namespace disconnect');
+  }
+  return this;
+};
+
+/**
+ * Sets the compress flag.
+ *
+ * @param {Boolean} compress if `true`, compresses the sending data
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.compress = function(compress){
+  this.flags.compress = compress;
+  return this;
+};
+
+/**
+ * Sets the binary flag
+ *
+ * @param {Boolean} Encode as if it has binary data if `true`, Encode as if it doesnt have binary data if `false`
+ * @return {Socket} self
+ * @api public
+ */
+
+ Socket.prototype.binary = function (binary) {
+   this.flags.binary = binary;
+   return this;
+ };
+
+/**
+ * Dispatch incoming event to socket listeners.
+ *
+ * @param {Array} event that will get emitted
+ * @api private
+ */
+
+Socket.prototype.dispatch = function(event){
+  debug('dispatching an event %j', event);
+  var self = this;
+  function dispatchSocket(err) {
+    process.nextTick(function(){
+      if (err) {
+        return self.error(err.data || err.message);
+      }
+      emit.apply(self, event);
+    });
+  }
+  this.run(event, dispatchSocket);
+};
+
+/**
+ * Sets up socket middleware.
+ *
+ * @param {Function} middleware function (event, next)
+ * @return {Socket} self
+ * @api public
+ */
+
+Socket.prototype.use = function(fn){
+  this.fns.push(fn);
+  return this;
+};
+
+/**
+ * Executes the middleware for an incoming event.
+ *
+ * @param {Array} event that will get emitted
+ * @param {Function} last fn call in the middleware
+ * @api private
+ */
+Socket.prototype.run = function(event, fn){
+  var fns = this.fns.slice(0);
+  if (!fns.length) return fn(null);
+
+  function run(i){
+    fns[i](event, function(err){
+      // upon error, short-circuit
+      if (err) return fn(err);
+
+      // if no middleware left, summon callback
+      if (!fns[i + 1]) return fn(null);
+
+      // go on to next
+      run(i + 1);
+    });
+  }
+
+  run(0);
+};
diff --git a/helloworld/node_modules/spdx-correct/LICENSE b/helloworld/node_modules/spdx-correct/LICENSE
new file mode 100755
index 0000000..d645695
--- /dev/null
+++ b/helloworld/node_modules/spdx-correct/LICENSE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
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+      control with that entity. For the purposes of this definition,
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+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
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+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
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+   3. Grant of Patent License. Subject to the terms and conditions of
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+      Contribution(s) alone or by combination of their Contribution(s)
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+      institute patent litigation against any entity (including a
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+      or contributory patent infringement, then any patent licenses
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+
+   4. Redistribution. You may reproduce and distribute copies of the
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+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
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+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
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+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
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+          of the following places: within a NOTICE text file distributed
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+          of the NOTICE file are for informational purposes only and
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+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
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+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/helloworld/node_modules/spdx-correct/README.md b/helloworld/node_modules/spdx-correct/README.md
new file mode 100755
index 0000000..ab388cf
--- /dev/null
+++ b/helloworld/node_modules/spdx-correct/README.md
@@ -0,0 +1,14 @@
+```javascript
+var correct = require('spdx-correct')
+var assert = require('assert')
+
+assert.equal(correct('mit'), 'MIT')
+
+assert.equal(correct('Apache 2'), 'Apache-2.0')
+
+assert(correct('No idea what license') === null)
+
+// disable upgrade option
+assert(correct('GPL-3.0'), 'GPL-3.0-or-later')
+assert(correct('GPL-3.0', { upgrade: false }), 'GPL-3.0')
+```
diff --git a/helloworld/node_modules/spdx-correct/index.js b/helloworld/node_modules/spdx-correct/index.js
new file mode 100755
index 0000000..8e0e5ae
--- /dev/null
+++ b/helloworld/node_modules/spdx-correct/index.js
@@ -0,0 +1,343 @@
+/*
+Copyright spdx-correct.js contributors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+var parse = require('spdx-expression-parse')
+var spdxLicenseIds = require('spdx-license-ids')
+
+function valid (string) {
+  try {
+    parse(string)
+    return true
+  } catch (error) {
+    return false
+  }
+}
+
+// Common transpositions of license identifier acronyms
+var transpositions = [
+  ['APGL', 'AGPL'],
+  ['Gpl', 'GPL'],
+  ['GLP', 'GPL'],
+  ['APL', 'Apache'],
+  ['ISD', 'ISC'],
+  ['GLP', 'GPL'],
+  ['IST', 'ISC'],
+  ['Claude', 'Clause'],
+  [' or later', '+'],
+  [' International', ''],
+  ['GNU', 'GPL'],
+  ['GUN', 'GPL'],
+  ['+', ''],
+  ['GNU GPL', 'GPL'],
+  ['GNU/GPL', 'GPL'],
+  ['GNU GLP', 'GPL'],
+  ['GNU General Public License', 'GPL'],
+  ['Gnu public license', 'GPL'],
+  ['GNU Public License', 'GPL'],
+  ['GNU GENERAL PUBLIC LICENSE', 'GPL'],
+  ['MTI', 'MIT'],
+  ['Mozilla Public License', 'MPL'],
+  ['WTH', 'WTF'],
+  ['-License', '']
+]
+
+var TRANSPOSED = 0
+var CORRECT = 1
+
+// Simple corrections to nearly valid identifiers.
+var transforms = [
+  // e.g. 'mit'
+  function (argument) {
+    return argument.toUpperCase()
+  },
+  // e.g. 'MIT '
+  function (argument) {
+    return argument.trim()
+  },
+  // e.g. 'M.I.T.'
+  function (argument) {
+    return argument.replace(/\./g, '')
+  },
+  // e.g. 'Apache- 2.0'
+  function (argument) {
+    return argument.replace(/\s+/g, '')
+  },
+  // e.g. 'CC BY 4.0''
+  function (argument) {
+    return argument.replace(/\s+/g, '-')
+  },
+  // e.g. 'LGPLv2.1'
+  function (argument) {
+    return argument.replace('v', '-')
+  },
+  // e.g. 'Apache 2.0'
+  function (argument) {
+    return argument.replace(/,?\s*(\d)/, '-$1')
+  },
+  // e.g. 'GPL 2'
+  function (argument) {
+    return argument.replace(/,?\s*(\d)/, '-$1.0')
+  },
+  // e.g. 'Apache Version 2.0'
+  function (argument) {
+    return argument
+      .replace(/,?\s*(V\.|v\.|V|v|Version|version)\s*(\d)/, '-$2')
+  },
+  // e.g. 'Apache Version 2'
+  function (argument) {
+    return argument
+      .replace(/,?\s*(V\.|v\.|V|v|Version|version)\s*(\d)/, '-$2.0')
+  },
+  // e.g. 'ZLIB'
+  function (argument) {
+    return argument[0].toUpperCase() + argument.slice(1)
+  },
+  // e.g. 'MPL/2.0'
+  function (argument) {
+    return argument.replace('/', '-')
+  },
+  // e.g. 'Apache 2'
+  function (argument) {
+    return argument
+      .replace(/\s*V\s*(\d)/, '-$1')
+      .replace(/(\d)$/, '$1.0')
+  },
+  // e.g. 'GPL-2.0', 'GPL-3.0'
+  function (argument) {
+    if (argument.indexOf('3.0') !== -1) {
+      return argument + '-or-later'
+    } else {
+      return argument + '-only'
+    }
+  },
+  // e.g. 'GPL-2.0-'
+  function (argument) {
+    return argument + 'only'
+  },
+  // e.g. 'GPL2'
+  function (argument) {
+    return argument.replace(/(\d)$/, '-$1.0')
+  },
+  // e.g. 'BSD 3'
+  function (argument) {
+    return argument.replace(/(-| )?(\d)$/, '-$2-Clause')
+  },
+  // e.g. 'BSD clause 3'
+  function (argument) {
+    return argument.replace(/(-| )clause(-| )(\d)/, '-$3-Clause')
+  },
+  // e.g. 'BY-NC-4.0'
+  function (argument) {
+    return 'CC-' + argument
+  },
+  // e.g. 'BY-NC'
+  function (argument) {
+    return 'CC-' + argument + '-4.0'
+  },
+  // e.g. 'Attribution-NonCommercial'
+  function (argument) {
+    return argument
+      .replace('Attribution', 'BY')
+      .replace('NonCommercial', 'NC')
+      .replace('NoDerivatives', 'ND')
+      .replace(/ (\d)/, '-$1')
+      .replace(/ ?International/, '')
+  },
+  // e.g. 'Attribution-NonCommercial'
+  function (argument) {
+    return 'CC-' +
+      argument
+        .replace('Attribution', 'BY')
+        .replace('NonCommercial', 'NC')
+        .replace('NoDerivatives', 'ND')
+        .replace(/ (\d)/, '-$1')
+        .replace(/ ?International/, '') +
+      '-4.0'
+  }
+]
+
+var licensesWithVersions = spdxLicenseIds
+  .map(function (id) {
+    var match = /^(.*)-\d+\.\d+$/.exec(id)
+    return match
+      ? [match[0], match[1]]
+      : [id, null]
+  })
+  .reduce(function (objectMap, item) {
+    var key = item[1]
+    objectMap[key] = objectMap[key] || []
+    objectMap[key].push(item[0])
+    return objectMap
+  }, {})
+
+var licensesWithOneVersion = Object.keys(licensesWithVersions)
+  .map(function makeEntries (key) {
+    return [key, licensesWithVersions[key]]
+  })
+  .filter(function identifySoleVersions (item) {
+    return (
+      // Licenses has just one valid version suffix.
+      item[1].length === 1 &&
+      item[0] !== null &&
+      // APL will be considered Apache, rather than APL-1.0
+      item[0] !== 'APL'
+    )
+  })
+  .map(function createLastResorts (item) {
+    return [item[0], item[1][0]]
+  })
+
+licensesWithVersions = undefined
+
+// If all else fails, guess that strings containing certain substrings
+// meant to identify certain licenses.
+var lastResorts = [
+  ['UNLI', 'Unlicense'],
+  ['WTF', 'WTFPL'],
+  ['2 CLAUSE', 'BSD-2-Clause'],
+  ['2-CLAUSE', 'BSD-2-Clause'],
+  ['3 CLAUSE', 'BSD-3-Clause'],
+  ['3-CLAUSE', 'BSD-3-Clause'],
+  ['AFFERO', 'AGPL-3.0-or-later'],
+  ['AGPL', 'AGPL-3.0-or-later'],
+  ['APACHE', 'Apache-2.0'],
+  ['ARTISTIC', 'Artistic-2.0'],
+  ['Affero', 'AGPL-3.0-or-later'],
+  ['BEER', 'Beerware'],
+  ['BOOST', 'BSL-1.0'],
+  ['BSD', 'BSD-2-Clause'],
+  ['CDDL', 'CDDL-1.1'],
+  ['ECLIPSE', 'EPL-1.0'],
+  ['FUCK', 'WTFPL'],
+  ['GNU', 'GPL-3.0-or-later'],
+  ['LGPL', 'LGPL-3.0-or-later'],
+  ['GPLV1', 'GPL-1.0-only'],
+  ['GPL-1', 'GPL-1.0-only'],
+  ['GPLV2', 'GPL-2.0-only'],
+  ['GPL-2', 'GPL-2.0-only'],
+  ['GPL', 'GPL-3.0-or-later'],
+  ['MIT +NO-FALSE-ATTRIBS', 'MITNFA'],
+  ['MIT', 'MIT'],
+  ['MPL', 'MPL-2.0'],
+  ['X11', 'X11'],
+  ['ZLIB', 'Zlib']
+].concat(licensesWithOneVersion)
+
+var SUBSTRING = 0
+var IDENTIFIER = 1
+
+var validTransformation = function (identifier) {
+  for (var i = 0; i < transforms.length; i++) {
+    var transformed = transforms[i](identifier).trim()
+    if (transformed !== identifier && valid(transformed)) {
+      return transformed
+    }
+  }
+  return null
+}
+
+var validLastResort = function (identifier) {
+  var upperCased = identifier.toUpperCase()
+  for (var i = 0; i < lastResorts.length; i++) {
+    var lastResort = lastResorts[i]
+    if (upperCased.indexOf(lastResort[SUBSTRING]) > -1) {
+      return lastResort[IDENTIFIER]
+    }
+  }
+  return null
+}
+
+var anyCorrection = function (identifier, check) {
+  for (var i = 0; i < transpositions.length; i++) {
+    var transposition = transpositions[i]
+    var transposed = transposition[TRANSPOSED]
+    if (identifier.indexOf(transposed) > -1) {
+      var corrected = identifier.replace(
+        transposed,
+        transposition[CORRECT]
+      )
+      var checked = check(corrected)
+      if (checked !== null) {
+        return checked
+      }
+    }
+  }
+  return null
+}
+
+module.exports = function (identifier, options) {
+  options = options || {}
+  var upgrade = options.upgrade === undefined ? true : !!options.upgrade
+  function postprocess (value) {
+    return upgrade ? upgradeGPLs(value) : value
+  }
+  var validArugment = (
+    typeof identifier === 'string' &&
+    identifier.trim().length !== 0
+  )
+  if (!validArugment) {
+    throw Error('Invalid argument. Expected non-empty string.')
+  }
+  identifier = identifier.trim()
+  if (valid(identifier)) {
+    return postprocess(identifier)
+  }
+  var noPlus = identifier.replace(/\+$/, '').trim()
+  if (valid(noPlus)) {
+    return postprocess(noPlus)
+  }
+  var transformed = validTransformation(identifier)
+  if (transformed !== null) {
+    return postprocess(transformed)
+  }
+  transformed = anyCorrection(identifier, function (argument) {
+    if (valid(argument)) {
+      return argument
+    }
+    return validTransformation(argument)
+  })
+  if (transformed !== null) {
+    return postprocess(transformed)
+  }
+  transformed = validLastResort(identifier)
+  if (transformed !== null) {
+    return postprocess(transformed)
+  }
+  transformed = anyCorrection(identifier, validLastResort)
+  if (transformed !== null) {
+    return postprocess(transformed)
+  }
+  return null
+}
+
+function upgradeGPLs (value) {
+  if ([
+    'GPL-1.0', 'LGPL-1.0', 'AGPL-1.0',
+    'GPL-2.0', 'LGPL-2.0', 'AGPL-2.0',
+    'LGPL-2.1'
+  ].indexOf(value) !== -1) {
+    return value + '-only'
+  } else if ([
+    'GPL-1.0+', 'GPL-2.0+', 'GPL-3.0+',
+    'LGPL-2.0+', 'LGPL-2.1+', 'LGPL-3.0+',
+    'AGPL-1.0+', 'AGPL-3.0+'
+  ].indexOf(value) !== -1) {
+    return value.replace(/\+$/, '-or-later')
+  } else if (['GPL-3.0', 'LGPL-3.0', 'AGPL-3.0'].indexOf(value) !== -1) {
+    return value + '-or-later'
+  } else {
+    return value
+  }
+}
diff --git a/helloworld/node_modules/spdx-exceptions/README.md b/helloworld/node_modules/spdx-exceptions/README.md
new file mode 100755
index 0000000..6c927ec
--- /dev/null
+++ b/helloworld/node_modules/spdx-exceptions/README.md
@@ -0,0 +1,36 @@
+The package exports an array of strings. Each string is an identifier
+for a license exception under the [Software Package Data Exchange
+(SPDX)][SPDX] software license metadata standard.
+
+[SPDX]: https://spdx.org
+
+## Copyright and Licensing
+
+### SPDX
+
+"SPDX" is a federally registered United States trademark of The Linux
+Foundation Corporation.
+
+From version 2.0 of the [SPDX] specification:
+
+> Copyright © 2010-2015 Linux Foundation and its Contributors. Licensed
+> under the Creative Commons Attribution License 3.0 Unported. All other
+> rights are expressly reserved.
+
+The Linux Foundation and the SPDX working groups are good people. Only
+they decide what "SPDX" means, as a standard and otherwise. I respect
+their work and their rights. You should, too.
+
+### This Package
+
+> I created this package by copying exception identifiers out of the
+> SPDX specification. That work was mechanical, routine, and required no
+> creativity whatsoever. - Kyle Mitchell, package author
+
+United States users concerned about intellectual property may wish to
+discuss the following Supreme Court decisions with their attorneys:
+
+- _Baker v. Selden_, 101 U.S. 99 (1879)
+
+- _Feist Publications, Inc., v. Rural Telephone Service Co._,
+  499 U.S. 340 (1991)
diff --git a/helloworld/node_modules/spdx-exceptions/index.json b/helloworld/node_modules/spdx-exceptions/index.json
new file mode 100755
index 0000000..1063ebd
--- /dev/null
+++ b/helloworld/node_modules/spdx-exceptions/index.json
@@ -0,0 +1,34 @@
+[
+  "389-exception",
+  "Autoconf-exception-2.0",
+  "Autoconf-exception-3.0",
+  "Bison-exception-2.2",
+  "Bootloader-exception",
+  "Classpath-exception-2.0",
+  "CLISP-exception-2.0",
+  "DigiRule-FOSS-exception",
+  "eCos-exception-2.0",
+  "Fawkes-Runtime-exception",
+  "FLTK-exception",
+  "Font-exception-2.0",
+  "freertos-exception-2.0",
+  "GCC-exception-2.0",
+  "GCC-exception-3.1",
+  "gnu-javamail-exception",
+  "i2p-gpl-java-exception",
+  "Libtool-exception",
+  "Linux-syscall-note",
+  "LLVM-exception",
+  "LZMA-exception",
+  "mif-exception",
+  "Nokia-Qt-exception-1.1",
+  "OCCT-exception-1.0",
+  "OpenJDK-assembly-exception-1.0",
+  "openvpn-openssl-exception",
+  "PS-or-PDF-font-exception-20170817",
+  "Qt-GPL-exception-1.0",
+  "Qt-LGPL-exception-1.1",
+  "Qwt-exception-1.0",
+  "u-boot-exception-2.0",
+  "WxWindows-exception-3.1"
+]
diff --git a/helloworld/node_modules/spdx-exceptions/package.json b/helloworld/node_modules/spdx-exceptions/package.json
new file mode 100755
index 0000000..7799414
--- /dev/null
+++ b/helloworld/node_modules/spdx-exceptions/package.json
@@ -0,0 +1,49 @@
+{
+  "_from": "spdx-exceptions@^2.1.0",
+  "_id": "spdx-exceptions@2.2.0",
+  "_inBundle": false,
+  "_integrity": "sha512-2XQACfElKi9SlVb1CYadKDXvoajPgBVPn/gOQLrTvHdElaVhr7ZEbqJaRnJLVNeaI4cMEAgVCeBMKF6MWRDCRA==",
+  "_location": "/spdx-exceptions",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "spdx-exceptions@^2.1.0",
+    "name": "spdx-exceptions",
+    "escapedName": "spdx-exceptions",
+    "rawSpec": "^2.1.0",
+    "saveSpec": null,
+    "fetchSpec": "^2.1.0"
+  },
+  "_requiredBy": [
+    "/spdx-expression-parse"
+  ],
+  "_resolved": "https://registry.npmjs.org/spdx-exceptions/-/spdx-exceptions-2.2.0.tgz",
+  "_shasum": "2ea450aee74f2a89bfb94519c07fcd6f41322977",
+  "_spec": "spdx-exceptions@^2.1.0",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/spdx-expression-parse",
+  "author": {
+    "name": "The Linux Foundation"
+  },
+  "bugs": {
+    "url": "https://github.com/kemitchell/spdx-exceptions.json/issues"
+  },
+  "bundleDependencies": false,
+  "contributors": [
+    {
+      "name": "Kyle E. Mitchell",
+      "email": "kyle@kemitchell.com",
+      "url": "https://kemitchell.com/"
+    }
+  ],
+  "deprecated": false,
+  "description": "list of SPDX standard license exceptions",
+  "homepage": "https://github.com/kemitchell/spdx-exceptions.json#readme",
+  "license": "CC-BY-3.0",
+  "name": "spdx-exceptions",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/kemitchell/spdx-exceptions.json.git"
+  },
+  "version": "2.2.0"
+}
diff --git a/helloworld/node_modules/spdx-exceptions/test.log b/helloworld/node_modules/spdx-exceptions/test.log
new file mode 100755
index 0000000..b54b110
--- /dev/null
+++ b/helloworld/node_modules/spdx-exceptions/test.log
@@ -0,0 +1,8 @@
+up to date in 1.038s
+found 0 vulnerabilities
+
+
+> spdx-exceptions@2.1.0 test /home/kyle/spdx-exceptions.json
+> echo 'Error: no test specified'
+
+Error: no test specified
diff --git a/helloworld/node_modules/spdx-expression-parse/AUTHORS b/helloworld/node_modules/spdx-expression-parse/AUTHORS
new file mode 100755
index 0000000..257a76b
--- /dev/null
+++ b/helloworld/node_modules/spdx-expression-parse/AUTHORS
@@ -0,0 +1,4 @@
+C. Scott Ananian <cscott@cscott.net> (http://cscott.net)
+Kyle E. Mitchell <kyle@kemitchell.com> (https://kemitchell.com)
+Shinnosuke Watanabe <snnskwtnb@gmail.com>
+Antoine Motet <antoine.motet@gmail.com>
diff --git a/helloworld/node_modules/spdx-expression-parse/LICENSE b/helloworld/node_modules/spdx-expression-parse/LICENSE
new file mode 100755
index 0000000..831618e
--- /dev/null
+++ b/helloworld/node_modules/spdx-expression-parse/LICENSE
@@ -0,0 +1,22 @@
+The MIT License
+
+Copyright (c) 2015 Kyle E. Mitchell & other authors listed in AUTHORS
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/spdx-expression-parse/README.md b/helloworld/node_modules/spdx-expression-parse/README.md
new file mode 100755
index 0000000..514895b
--- /dev/null
+++ b/helloworld/node_modules/spdx-expression-parse/README.md
@@ -0,0 +1,91 @@
+This package parses [SPDX license expression](https://spdx.org/spdx-specification-21-web-version#h.jxpfx0ykyb60) strings describing license terms, like [package.json license strings](https://docs.npmjs.com/files/package.json#license), into consistently structured ECMAScript objects.  The npm command-line interface depends on this package, as do many automatic license-audit tools.
+
+In a nutshell:
+
+```javascript
+var parse = require('spdx-expression-parse')
+var assert = require('assert')
+
+assert.deepEqual(
+  // Licensed under the terms of the Two-Clause BSD License.
+  parse('BSD-2-Clause'),
+  {license: 'BSD-2-Clause'}
+)
+
+assert.throws(function () {
+  // An invalid SPDX license expression.
+  // Should be `Apache-2.0`.
+  parse('Apache 2')
+})
+
+assert.deepEqual(
+  // Dual licensed under either:
+  // - LGPL 2.1
+  // - a combination of Three-Clause BSD and MIT
+  parse('(LGPL-2.1 OR BSD-3-Clause AND MIT)'),
+  {
+    left: {license: 'LGPL-2.1'},
+    conjunction: 'or',
+    right: {
+      left: {license: 'BSD-3-Clause'},
+      conjunction: 'and',
+      right: {license: 'MIT'}
+    }
+  }
+)
+```
+
+The syntax comes from the [Software Package Data eXchange (SPDX)](https://spdx.org/), a standard from the [Linux Foundation](https://www.linuxfoundation.org) for shareable data about software package license terms.  SPDX aims to make sharing and auditing license data easy, especially for users of open-source software.
+
+The bulk of the SPDX standard describes syntax and semantics of XML metadata files.  This package implements two lightweight, plain-text components of that larger standard:
+
+1.  The [license list](https://spdx.org/licenses), a mapping from specific string identifiers, like `Apache-2.0`, to standard form license texts and bolt-on license exceptions.  The [spdx-license-ids](https://www.npmjs.com/package/spdx-exceptions) and [spdx-exceptions](https://www.npmjs.com/package/spdx-license-ids) packages implement the license list.  `spdx-expression-parse` depends on and `require()`s them.
+
+    Any license identifier from the license list is a valid license expression:
+
+    ```javascript
+    var identifiers = []
+      .concat(require('spdx-license-ids'))
+      .concat(require('spdx-license-ids/deprecated'))
+
+    identifiers.forEach(function (id) {
+      assert.deepEqual(parse(id), {license: id})
+    })
+    ```
+
+    So is any license identifier `WITH` a standardized license exception:
+
+    ```javascript
+    identifiers.forEach(function (id) {
+      require('spdx-exceptions').forEach(function (e) {
+        assert.deepEqual(
+          parse(id + ' WITH ' + e),
+          {license: id, exception: e}
+        )
+      })
+    })
+    ```
+
+2.  The license expression language, for describing simple and complex license terms, like `MIT` for MIT-licensed and `(GPL-2.0 OR Apache-2.0)` for dual-licensing under GPL 2.0 and Apache 2.0.  `spdx-expression-parse` itself implements license expression language, exporting a parser.
+
+    ```javascript
+    assert.deepEqual(
+      // Licensed under a combination of:
+      // - the MIT License AND
+      // - a combination of:
+      //   - LGPL 2.1 (or a later version) AND
+      //   - Three-Clause BSD
+      parse('(MIT AND (LGPL-2.1+ AND BSD-3-Clause))'),
+      {
+        left: {license: 'MIT'},
+        conjunction: 'and',
+        right: {
+          left: {license: 'LGPL-2.1', plus: true},
+          conjunction: 'and',
+          right: {license: 'BSD-3-Clause'}
+        }
+      }
+    )
+    ```
+
+The Linux Foundation and its contributors license the SPDX standard under the terms of [the Creative Commons Attribution License 3.0 Unported (SPDX: "CC-BY-3.0")](http://spdx.org/licenses/CC-BY-3.0).  "SPDX" is a United States federally registered trademark of the Linux Foundation.  The authors of this package license their work under the terms of the MIT License.
diff --git a/helloworld/node_modules/spdx-expression-parse/index.js b/helloworld/node_modules/spdx-expression-parse/index.js
new file mode 100755
index 0000000..52fab56
--- /dev/null
+++ b/helloworld/node_modules/spdx-expression-parse/index.js
@@ -0,0 +1,8 @@
+'use strict'
+
+var scan = require('./scan')
+var parse = require('./parse')
+
+module.exports = function (source) {
+  return parse(scan(source))
+}
diff --git a/helloworld/node_modules/spdx-expression-parse/parse.js b/helloworld/node_modules/spdx-expression-parse/parse.js
new file mode 100755
index 0000000..a4a52ce
--- /dev/null
+++ b/helloworld/node_modules/spdx-expression-parse/parse.js
@@ -0,0 +1,138 @@
+'use strict'
+
+// The ABNF grammar in the spec is totally ambiguous.
+//
+// This parser follows the operator precedence defined in the
+// `Order of Precedence and Parentheses` section.
+
+module.exports = function (tokens) {
+  var index = 0
+
+  function hasMore () {
+    return index < tokens.length
+  }
+
+  function token () {
+    return hasMore() ? tokens[index] : null
+  }
+
+  function next () {
+    if (!hasMore()) {
+      throw new Error()
+    }
+    index++
+  }
+
+  function parseOperator (operator) {
+    var t = token()
+    if (t && t.type === 'OPERATOR' && operator === t.string) {
+      next()
+      return t.string
+    }
+  }
+
+  function parseWith () {
+    if (parseOperator('WITH')) {
+      var t = token()
+      if (t && t.type === 'EXCEPTION') {
+        next()
+        return t.string
+      }
+      throw new Error('Expected exception after `WITH`')
+    }
+  }
+
+  function parseLicenseRef () {
+    // TODO: Actually, everything is concatenated into one string
+    // for backward-compatibility but it could be better to return
+    // a nice structure.
+    var begin = index
+    var string = ''
+    var t = token()
+    if (t.type === 'DOCUMENTREF') {
+      next()
+      string += 'DocumentRef-' + t.string + ':'
+      if (!parseOperator(':')) {
+        throw new Error('Expected `:` after `DocumentRef-...`')
+      }
+    }
+    t = token()
+    if (t.type === 'LICENSEREF') {
+      next()
+      string += 'LicenseRef-' + t.string
+      return {license: string}
+    }
+    index = begin
+  }
+
+  function parseLicense () {
+    var t = token()
+    if (t && t.type === 'LICENSE') {
+      next()
+      var node = {license: t.string}
+      if (parseOperator('+')) {
+        node.plus = true
+      }
+      var exception = parseWith()
+      if (exception) {
+        node.exception = exception
+      }
+      return node
+    }
+  }
+
+  function parseParenthesizedExpression () {
+    var left = parseOperator('(')
+    if (!left) {
+      return
+    }
+
+    var expr = parseExpression()
+
+    if (!parseOperator(')')) {
+      throw new Error('Expected `)`')
+    }
+
+    return expr
+  }
+
+  function parseAtom () {
+    return (
+      parseParenthesizedExpression() ||
+      parseLicenseRef() ||
+      parseLicense()
+    )
+  }
+
+  function makeBinaryOpParser (operator, nextParser) {
+    return function parseBinaryOp () {
+      var left = nextParser()
+      if (!left) {
+        return
+      }
+
+      if (!parseOperator(operator)) {
+        return left
+      }
+
+      var right = parseBinaryOp()
+      if (!right) {
+        throw new Error('Expected expression')
+      }
+      return {
+        left: left,
+        conjunction: operator.toLowerCase(),
+        right: right
+      }
+    }
+  }
+
+  var parseAnd = makeBinaryOpParser('AND', parseAtom)
+  var parseExpression = makeBinaryOpParser('OR', parseAnd)
+
+  var node = parseExpression()
+  if (!node || hasMore()) {
+    throw new Error('Syntax error')
+  }
+  return node
+}
diff --git a/helloworld/node_modules/spdx-expression-parse/scan.js b/helloworld/node_modules/spdx-expression-parse/scan.js
new file mode 100755
index 0000000..d0567f4
--- /dev/null
+++ b/helloworld/node_modules/spdx-expression-parse/scan.js
@@ -0,0 +1,131 @@
+'use strict'
+
+var licenses = []
+  .concat(require('spdx-license-ids'))
+  .concat(require('spdx-license-ids/deprecated'))
+var exceptions = require('spdx-exceptions')
+
+module.exports = function (source) {
+  var index = 0
+
+  function hasMore () {
+    return index < source.length
+  }
+
+  // `value` can be a regexp or a string.
+  // If it is recognized, the matching source string is returned and
+  // the index is incremented. Otherwise `undefined` is returned.
+  function read (value) {
+    if (value instanceof RegExp) {
+      var chars = source.slice(index)
+      var match = chars.match(value)
+      if (match) {
+        index += match[0].length
+        return match[0]
+      }
+    } else {
+      if (source.indexOf(value, index) === index) {
+        index += value.length
+        return value
+      }
+    }
+  }
+
+  function skipWhitespace () {
+    read(/[ ]*/)
+  }
+
+  function operator () {
+    var string
+    var possibilities = ['WITH', 'AND', 'OR', '(', ')', ':', '+']
+    for (var i = 0; i < possibilities.length; i++) {
+      string = read(possibilities[i])
+      if (string) {
+        break
+      }
+    }
+
+    if (string === '+' && index > 1 && source[index - 2] === ' ') {
+      throw new Error('Space before `+`')
+    }
+
+    return string && {
+      type: 'OPERATOR',
+      string: string
+    }
+  }
+
+  function idstring () {
+    return read(/[A-Za-z0-9-.]+/)
+  }
+
+  function expectIdstring () {
+    var string = idstring()
+    if (!string) {
+      throw new Error('Expected idstring at offset ' + index)
+    }
+    return string
+  }
+
+  function documentRef () {
+    if (read('DocumentRef-')) {
+      var string = expectIdstring()
+      return {type: 'DOCUMENTREF', string: string}
+    }
+  }
+
+  function licenseRef () {
+    if (read('LicenseRef-')) {
+      var string = expectIdstring()
+      return {type: 'LICENSEREF', string: string}
+    }
+  }
+
+  function identifier () {
+    var begin = index
+    var string = idstring()
+
+    if (licenses.indexOf(string) !== -1) {
+      return {
+        type: 'LICENSE',
+        string: string
+      }
+    } else if (exceptions.indexOf(string) !== -1) {
+      return {
+        type: 'EXCEPTION',
+        string: string
+      }
+    }
+
+    index = begin
+  }
+
+  // Tries to read the next token. Returns `undefined` if no token is
+  // recognized.
+  function parseToken () {
+    // Ordering matters
+    return (
+      operator() ||
+      documentRef() ||
+      licenseRef() ||
+      identifier()
+    )
+  }
+
+  var tokens = []
+  while (hasMore()) {
+    skipWhitespace()
+    if (!hasMore()) {
+      break
+    }
+
+    var token = parseToken()
+    if (!token) {
+      throw new Error('Unexpected `' + source[index] +
+                      '` at offset ' + index)
+    }
+
+    tokens.push(token)
+  }
+  return tokens
+}
diff --git a/helloworld/node_modules/spdx-license-ids/README.md b/helloworld/node_modules/spdx-license-ids/README.md
new file mode 100755
index 0000000..c7b5b5f
--- /dev/null
+++ b/helloworld/node_modules/spdx-license-ids/README.md
@@ -0,0 +1,52 @@
+# spdx-license-ids
+
+[![npm version](https://img.shields.io/npm/v/spdx-license-ids.svg)](https://www.npmjs.org/package/spdx-license-ids)
+[![Build Status](https://travis-ci.org/shinnn/spdx-license-ids.svg?branch=master)](https://travis-ci.org/shinnn/spdx-license-ids)
+
+A list of [SPDX license](https://spdx.org/licenses/) identifiers
+
+## Installation
+
+[Download JSON directly](https://raw.githubusercontent.com/shinnn/spdx-license-ids/master/index.json), or [use](https://docs.npmjs.com/cli/install) [npm](https://docs.npmjs.com/getting-started/what-is-npm):
+
+```
+npm install spdx-license-ids
+```
+
+## [Node.js](https://nodejs.org/) API
+
+### require('spdx-license-ids')
+
+Type: `<Array<string>>`
+
+All license IDs except for the currently deprecated ones.
+
+```javascript
+const ids = require('spdx-license-ids');
+//=> ['0BSD', 'AAL', 'Abstyles', 'Adobe-2006', 'Adobe-Glyph', 'ADSL', 'AFL-1.1', 'AFL-1.2', ...]
+
+ids.includes('BSD-3-Clause'); //=> true
+ids.includes('CC-BY-1.0'); //=> true
+
+ids.includes('GPL-3.0'); //=> false
+```
+
+### require('spdx-license-ids/deprecated')
+
+Type: `<Array<string>>`
+
+Deprecated license IDs.
+
+```javascript
+const deprecatedIds = require('spdx-license-ids/deprecated');
+//=> ['AGPL-1.0', 'AGPL-3.0', 'eCos-2.0', 'GFDL-1.1', 'GFDL-1.2', 'GFDL-1.3', 'GPL-1.0', ...]
+
+deprecatedIds.includes('BSD-3-Clause'); //=> false
+deprecatedIds.includes('CC-BY-1.0'); //=> false
+
+deprecatedIds.includes('GPL-3.0'); //=> true
+```
+
+## License
+
+[Creative Commons Zero v1.0 Universal](https://creativecommons.org/publicdomain/zero/1.0/deed)
diff --git a/helloworld/node_modules/spdx-license-ids/deprecated.json b/helloworld/node_modules/spdx-license-ids/deprecated.json
new file mode 100755
index 0000000..1681f48
--- /dev/null
+++ b/helloworld/node_modules/spdx-license-ids/deprecated.json
@@ -0,0 +1,24 @@
+[
+	"AGPL-1.0",
+	"AGPL-3.0",
+	"GFDL-1.1",
+	"GFDL-1.2",
+	"GFDL-1.3",
+	"GPL-1.0",
+	"GPL-2.0",
+	"GPL-2.0-with-GCC-exception",
+	"GPL-2.0-with-autoconf-exception",
+	"GPL-2.0-with-bison-exception",
+	"GPL-2.0-with-classpath-exception",
+	"GPL-2.0-with-font-exception",
+	"GPL-3.0",
+	"GPL-3.0-with-GCC-exception",
+	"GPL-3.0-with-autoconf-exception",
+	"LGPL-2.0",
+	"LGPL-2.1",
+	"LGPL-3.0",
+	"Nunit",
+	"StandardML-NJ",
+	"eCos-2.0",
+	"wxWindows"
+]
diff --git a/helloworld/node_modules/spdx-license-ids/index.json b/helloworld/node_modules/spdx-license-ids/index.json
new file mode 100755
index 0000000..ed06199
--- /dev/null
+++ b/helloworld/node_modules/spdx-license-ids/index.json
@@ -0,0 +1,356 @@
+[
+	"0BSD",
+	"AAL",
+	"ADSL",
+	"AFL-1.1",
+	"AFL-1.2",
+	"AFL-2.0",
+	"AFL-2.1",
+	"AFL-3.0",
+	"AGPL-1.0-only",
+	"AGPL-1.0-or-later",
+	"AGPL-3.0-only",
+	"AGPL-3.0-or-later",
+	"AMDPLPA",
+	"AML",
+	"AMPAS",
+	"ANTLR-PD",
+	"APAFML",
+	"APL-1.0",
+	"APSL-1.0",
+	"APSL-1.1",
+	"APSL-1.2",
+	"APSL-2.0",
+	"Abstyles",
+	"Adobe-2006",
+	"Adobe-Glyph",
+	"Afmparse",
+	"Aladdin",
+	"Apache-1.0",
+	"Apache-1.1",
+	"Apache-2.0",
+	"Artistic-1.0",
+	"Artistic-1.0-Perl",
+	"Artistic-1.0-cl8",
+	"Artistic-2.0",
+	"BSD-1-Clause",
+	"BSD-2-Clause",
+	"BSD-2-Clause-FreeBSD",
+	"BSD-2-Clause-NetBSD",
+	"BSD-2-Clause-Patent",
+	"BSD-3-Clause",
+	"BSD-3-Clause-Attribution",
+	"BSD-3-Clause-Clear",
+	"BSD-3-Clause-LBNL",
+	"BSD-3-Clause-No-Nuclear-License",
+	"BSD-3-Clause-No-Nuclear-License-2014",
+	"BSD-3-Clause-No-Nuclear-Warranty",
+	"BSD-4-Clause",
+	"BSD-4-Clause-UC",
+	"BSD-Protection",
+	"BSD-Source-Code",
+	"BSL-1.0",
+	"Bahyph",
+	"Barr",
+	"Beerware",
+	"BitTorrent-1.0",
+	"BitTorrent-1.1",
+	"Borceux",
+	"CATOSL-1.1",
+	"CC-BY-1.0",
+	"CC-BY-2.0",
+	"CC-BY-2.5",
+	"CC-BY-3.0",
+	"CC-BY-4.0",
+	"CC-BY-NC-1.0",
+	"CC-BY-NC-2.0",
+	"CC-BY-NC-2.5",
+	"CC-BY-NC-3.0",
+	"CC-BY-NC-4.0",
+	"CC-BY-NC-ND-1.0",
+	"CC-BY-NC-ND-2.0",
+	"CC-BY-NC-ND-2.5",
+	"CC-BY-NC-ND-3.0",
+	"CC-BY-NC-ND-4.0",
+	"CC-BY-NC-SA-1.0",
+	"CC-BY-NC-SA-2.0",
+	"CC-BY-NC-SA-2.5",
+	"CC-BY-NC-SA-3.0",
+	"CC-BY-NC-SA-4.0",
+	"CC-BY-ND-1.0",
+	"CC-BY-ND-2.0",
+	"CC-BY-ND-2.5",
+	"CC-BY-ND-3.0",
+	"CC-BY-ND-4.0",
+	"CC-BY-SA-1.0",
+	"CC-BY-SA-2.0",
+	"CC-BY-SA-2.5",
+	"CC-BY-SA-3.0",
+	"CC-BY-SA-4.0",
+	"CC0-1.0",
+	"CDDL-1.0",
+	"CDDL-1.1",
+	"CDLA-Permissive-1.0",
+	"CDLA-Sharing-1.0",
+	"CECILL-1.0",
+	"CECILL-1.1",
+	"CECILL-2.0",
+	"CECILL-2.1",
+	"CECILL-B",
+	"CECILL-C",
+	"CNRI-Jython",
+	"CNRI-Python",
+	"CNRI-Python-GPL-Compatible",
+	"CPAL-1.0",
+	"CPL-1.0",
+	"CPOL-1.02",
+	"CUA-OPL-1.0",
+	"Caldera",
+	"ClArtistic",
+	"Condor-1.1",
+	"Crossword",
+	"CrystalStacker",
+	"Cube",
+	"D-FSL-1.0",
+	"DOC",
+	"DSDP",
+	"Dotseqn",
+	"ECL-1.0",
+	"ECL-2.0",
+	"EFL-1.0",
+	"EFL-2.0",
+	"EPL-1.0",
+	"EPL-2.0",
+	"EUDatagrid",
+	"EUPL-1.0",
+	"EUPL-1.1",
+	"EUPL-1.2",
+	"Entessa",
+	"ErlPL-1.1",
+	"Eurosym",
+	"FSFAP",
+	"FSFUL",
+	"FSFULLR",
+	"FTL",
+	"Fair",
+	"Frameworx-1.0",
+	"FreeImage",
+	"GFDL-1.1-only",
+	"GFDL-1.1-or-later",
+	"GFDL-1.2-only",
+	"GFDL-1.2-or-later",
+	"GFDL-1.3-only",
+	"GFDL-1.3-or-later",
+	"GL2PS",
+	"GPL-1.0-only",
+	"GPL-1.0-or-later",
+	"GPL-2.0-only",
+	"GPL-2.0-or-later",
+	"GPL-3.0-only",
+	"GPL-3.0-or-later",
+	"Giftware",
+	"Glide",
+	"Glulxe",
+	"HPND",
+	"HaskellReport",
+	"IBM-pibs",
+	"ICU",
+	"IJG",
+	"IPA",
+	"IPL-1.0",
+	"ISC",
+	"ImageMagick",
+	"Imlib2",
+	"Info-ZIP",
+	"Intel",
+	"Intel-ACPI",
+	"Interbase-1.0",
+	"JSON",
+	"JasPer-2.0",
+	"LAL-1.2",
+	"LAL-1.3",
+	"LGPL-2.0-only",
+	"LGPL-2.0-or-later",
+	"LGPL-2.1-only",
+	"LGPL-2.1-or-later",
+	"LGPL-3.0-only",
+	"LGPL-3.0-or-later",
+	"LGPLLR",
+	"LPL-1.0",
+	"LPL-1.02",
+	"LPPL-1.0",
+	"LPPL-1.1",
+	"LPPL-1.2",
+	"LPPL-1.3a",
+	"LPPL-1.3c",
+	"Latex2e",
+	"Leptonica",
+	"LiLiQ-P-1.1",
+	"LiLiQ-R-1.1",
+	"LiLiQ-Rplus-1.1",
+	"Libpng",
+	"Linux-OpenIB",
+	"MIT",
+	"MIT-0",
+	"MIT-CMU",
+	"MIT-advertising",
+	"MIT-enna",
+	"MIT-feh",
+	"MITNFA",
+	"MPL-1.0",
+	"MPL-1.1",
+	"MPL-2.0",
+	"MPL-2.0-no-copyleft-exception",
+	"MS-PL",
+	"MS-RL",
+	"MTLL",
+	"MakeIndex",
+	"MirOS",
+	"Motosoto",
+	"Multics",
+	"Mup",
+	"NASA-1.3",
+	"NBPL-1.0",
+	"NCSA",
+	"NGPL",
+	"NLOD-1.0",
+	"NLPL",
+	"NOSL",
+	"NPL-1.0",
+	"NPL-1.1",
+	"NPOSL-3.0",
+	"NRL",
+	"NTP",
+	"Naumen",
+	"Net-SNMP",
+	"NetCDF",
+	"Newsletr",
+	"Nokia",
+	"Noweb",
+	"OCCT-PL",
+	"OCLC-2.0",
+	"ODC-By-1.0",
+	"ODbL-1.0",
+	"OFL-1.0",
+	"OFL-1.1",
+	"OGL-UK-1.0",
+	"OGL-UK-2.0",
+	"OGL-UK-3.0",
+	"OGTSL",
+	"OLDAP-1.1",
+	"OLDAP-1.2",
+	"OLDAP-1.3",
+	"OLDAP-1.4",
+	"OLDAP-2.0",
+	"OLDAP-2.0.1",
+	"OLDAP-2.1",
+	"OLDAP-2.2",
+	"OLDAP-2.2.1",
+	"OLDAP-2.2.2",
+	"OLDAP-2.3",
+	"OLDAP-2.4",
+	"OLDAP-2.5",
+	"OLDAP-2.6",
+	"OLDAP-2.7",
+	"OLDAP-2.8",
+	"OML",
+	"OPL-1.0",
+	"OSET-PL-2.1",
+	"OSL-1.0",
+	"OSL-1.1",
+	"OSL-2.0",
+	"OSL-2.1",
+	"OSL-3.0",
+	"OpenSSL",
+	"PDDL-1.0",
+	"PHP-3.0",
+	"PHP-3.01",
+	"Plexus",
+	"PostgreSQL",
+	"Python-2.0",
+	"QPL-1.0",
+	"Qhull",
+	"RHeCos-1.1",
+	"RPL-1.1",
+	"RPL-1.5",
+	"RPSL-1.0",
+	"RSA-MD",
+	"RSCPL",
+	"Rdisc",
+	"Ruby",
+	"SAX-PD",
+	"SCEA",
+	"SGI-B-1.0",
+	"SGI-B-1.1",
+	"SGI-B-2.0",
+	"SISSL",
+	"SISSL-1.2",
+	"SMLNJ",
+	"SMPPL",
+	"SNIA",
+	"SPL-1.0",
+	"SWL",
+	"Saxpath",
+	"Sendmail",
+	"Sendmail-8.23",
+	"SimPL-2.0",
+	"Sleepycat",
+	"Spencer-86",
+	"Spencer-94",
+	"Spencer-99",
+	"SugarCRM-1.1.3",
+	"TCL",
+	"TCP-wrappers",
+	"TMate",
+	"TORQUE-1.1",
+	"TOSL",
+	"TU-Berlin-1.0",
+	"TU-Berlin-2.0",
+	"UPL-1.0",
+	"Unicode-DFS-2015",
+	"Unicode-DFS-2016",
+	"Unicode-TOU",
+	"Unlicense",
+	"VOSTROM",
+	"VSL-1.0",
+	"Vim",
+	"W3C",
+	"W3C-19980720",
+	"W3C-20150513",
+	"WTFPL",
+	"Watcom-1.0",
+	"Wsuipa",
+	"X11",
+	"XFree86-1.1",
+	"XSkat",
+	"Xerox",
+	"Xnet",
+	"YPL-1.0",
+	"YPL-1.1",
+	"ZPL-1.1",
+	"ZPL-2.0",
+	"ZPL-2.1",
+	"Zed",
+	"Zend-2.0",
+	"Zimbra-1.3",
+	"Zimbra-1.4",
+	"Zlib",
+	"bzip2-1.0.5",
+	"bzip2-1.0.6",
+	"copyleft-next-0.3.0",
+	"copyleft-next-0.3.1",
+	"curl",
+	"diffmark",
+	"dvipdfm",
+	"eGenix",
+	"gSOAP-1.3b",
+	"gnuplot",
+	"iMatix",
+	"libtiff",
+	"mpich2",
+	"psfrag",
+	"psutils",
+	"xinetd",
+	"xpp",
+	"zlib-acknowledgement"
+]
diff --git a/helloworld/node_modules/string-width/index.js b/helloworld/node_modules/string-width/index.js
new file mode 100755
index 0000000..b9bec62
--- /dev/null
+++ b/helloworld/node_modules/string-width/index.js
@@ -0,0 +1,37 @@
+'use strict';
+var stripAnsi = require('strip-ansi');
+var codePointAt = require('code-point-at');
+var isFullwidthCodePoint = require('is-fullwidth-code-point');
+
+// https://github.com/nodejs/io.js/blob/cff7300a578be1b10001f2d967aaedc88aee6402/lib/readline.js#L1345
+module.exports = function (str) {
+	if (typeof str !== 'string' || str.length === 0) {
+		return 0;
+	}
+
+	var width = 0;
+
+	str = stripAnsi(str);
+
+	for (var i = 0; i < str.length; i++) {
+		var code = codePointAt(str, i);
+
+		// ignore control characters
+		if (code <= 0x1f || (code >= 0x7f && code <= 0x9f)) {
+			continue;
+		}
+
+		// surrogates
+		if (code >= 0x10000) {
+			i++;
+		}
+
+		if (isFullwidthCodePoint(code)) {
+			width += 2;
+		} else {
+			width++;
+		}
+	}
+
+	return width;
+};
diff --git a/helloworld/node_modules/string-width/license b/helloworld/node_modules/string-width/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/string-width/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/string-width/readme.md b/helloworld/node_modules/string-width/readme.md
new file mode 100755
index 0000000..1ab42c9
--- /dev/null
+++ b/helloworld/node_modules/string-width/readme.md
@@ -0,0 +1,42 @@
+# string-width [![Build Status](https://travis-ci.org/sindresorhus/string-width.svg?branch=master)](https://travis-ci.org/sindresorhus/string-width)
+
+> Get the visual width of a string - the number of columns required to display it
+
+Some Unicode characters are [fullwidth](https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms) and use double the normal width. [ANSI escape codes](http://en.wikipedia.org/wiki/ANSI_escape_code) are stripped and doesn't affect the width.
+
+Useful to be able to measure the actual width of command-line output.
+
+
+## Install
+
+```
+$ npm install --save string-width
+```
+
+
+## Usage
+
+```js
+const stringWidth = require('string-width');
+
+stringWidth('古');
+//=> 2
+
+stringWidth('\u001b[1m古\u001b[22m');
+//=> 2
+
+stringWidth('a');
+//=> 1
+```
+
+
+## Related
+
+- [string-width-cli](https://github.com/sindresorhus/string-width-cli) - CLI for this module
+- [string-length](https://github.com/sindresorhus/string-length) - Get the real length of a string
+- [widest-line](https://github.com/sindresorhus/widest-line) - Get the visual width of the widest line in a string
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/helloworld/node_modules/strip-ansi/index.js b/helloworld/node_modules/strip-ansi/index.js
new file mode 100755
index 0000000..099480f
--- /dev/null
+++ b/helloworld/node_modules/strip-ansi/index.js
@@ -0,0 +1,6 @@
+'use strict';
+var ansiRegex = require('ansi-regex')();
+
+module.exports = function (str) {
+	return typeof str === 'string' ? str.replace(ansiRegex, '') : str;
+};
diff --git a/helloworld/node_modules/strip-ansi/license b/helloworld/node_modules/strip-ansi/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/strip-ansi/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/strip-ansi/readme.md b/helloworld/node_modules/strip-ansi/readme.md
new file mode 100755
index 0000000..cb7d9ff
--- /dev/null
+++ b/helloworld/node_modules/strip-ansi/readme.md
@@ -0,0 +1,33 @@
+# strip-ansi [![Build Status](https://travis-ci.org/chalk/strip-ansi.svg?branch=master)](https://travis-ci.org/chalk/strip-ansi)
+
+> Strip [ANSI escape codes](http://en.wikipedia.org/wiki/ANSI_escape_code)
+
+
+## Install
+
+```
+$ npm install --save strip-ansi
+```
+
+
+## Usage
+
+```js
+var stripAnsi = require('strip-ansi');
+
+stripAnsi('\u001b[4mcake\u001b[0m');
+//=> 'cake'
+```
+
+
+## Related
+
+- [strip-ansi-cli](https://github.com/chalk/strip-ansi-cli) - CLI for this module
+- [has-ansi](https://github.com/chalk/has-ansi) - Check if a string has ANSI escape codes
+- [ansi-regex](https://github.com/chalk/ansi-regex) - Regular expression for matching ANSI escape codes
+- [chalk](https://github.com/chalk/chalk) - Terminal string styling done right
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/strip-bom/index.js b/helloworld/node_modules/strip-bom/index.js
new file mode 100755
index 0000000..5695c5c
--- /dev/null
+++ b/helloworld/node_modules/strip-bom/index.js
@@ -0,0 +1,17 @@
+'use strict';
+var isUtf8 = require('is-utf8');
+
+module.exports = function (x) {
+	// Catches EFBBBF (UTF-8 BOM) because the buffer-to-string
+	// conversion translates it to FEFF (UTF-16 BOM)
+	if (typeof x === 'string' && x.charCodeAt(0) === 0xFEFF) {
+		return x.slice(1);
+	}
+
+	if (Buffer.isBuffer(x) && isUtf8(x) &&
+		x[0] === 0xEF && x[1] === 0xBB && x[2] === 0xBF) {
+		return x.slice(3);
+	}
+
+	return x;
+};
diff --git a/helloworld/node_modules/strip-bom/license b/helloworld/node_modules/strip-bom/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/strip-bom/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/strip-bom/readme.md b/helloworld/node_modules/strip-bom/readme.md
new file mode 100755
index 0000000..8ecf258
--- /dev/null
+++ b/helloworld/node_modules/strip-bom/readme.md
@@ -0,0 +1,39 @@
+# strip-bom [![Build Status](https://travis-ci.org/sindresorhus/strip-bom.svg?branch=master)](https://travis-ci.org/sindresorhus/strip-bom)
+
+> Strip UTF-8 [byte order mark](http://en.wikipedia.org/wiki/Byte_order_mark#UTF-8) (BOM) from a string/buffer
+
+From Wikipedia:
+
+> The Unicode Standard permits the BOM in UTF-8, but does not require nor recommend its use. Byte order has no meaning in UTF-8.
+
+
+## Install
+
+```
+$ npm install --save strip-bom
+```
+
+
+## Usage
+
+```js
+var fs = require('fs');
+var stripBom = require('strip-bom');
+
+stripBom('\uFEFFunicorn');
+//=> 'unicorn'
+
+stripBom(fs.readFileSync('unicorn.txt'));
+//=> 'unicorn'
+```
+
+
+## Related
+
+- [strip-bom-cli](https://github.com/sindresorhus/strip-bom-cli) - CLI for this module
+- [strip-bom-stream](https://github.com/sindresorhus/strip-bom-stream) - Stream version of this module
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)
diff --git a/helloworld/node_modules/to-array/LICENCE b/helloworld/node_modules/to-array/LICENCE
new file mode 100755
index 0000000..a23e08a
--- /dev/null
+++ b/helloworld/node_modules/to-array/LICENCE
@@ -0,0 +1,19 @@
+Copyright (c) 2012 Raynos.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
\ No newline at end of file
diff --git a/helloworld/node_modules/to-array/README.md b/helloworld/node_modules/to-array/README.md
new file mode 100755
index 0000000..0f35286
--- /dev/null
+++ b/helloworld/node_modules/to-array/README.md
@@ -0,0 +1,22 @@
+# to-array
+
+Turn an array like into an array
+
+## Example
+
+``` js
+var toArray = require("to-array")
+    , elems = document.links
+
+var array = toArray(elems)
+```
+
+## Installation
+
+`npm install to-array`
+
+## Contributors
+
+ - Raynos
+
+## MIT Licenced
diff --git a/helloworld/node_modules/to-array/index.js b/helloworld/node_modules/to-array/index.js
new file mode 100755
index 0000000..6a38a69
--- /dev/null
+++ b/helloworld/node_modules/to-array/index.js
@@ -0,0 +1,13 @@
+module.exports = toArray
+
+function toArray(list, index) {
+    var array = []
+
+    index = index || 0
+
+    for (var i = index || 0; i < list.length; i++) {
+        array[i - index] = list[i]
+    }
+
+    return array
+}
diff --git a/helloworld/node_modules/to-array/package.json b/helloworld/node_modules/to-array/package.json
new file mode 100755
index 0000000..90034ef
--- /dev/null
+++ b/helloworld/node_modules/to-array/package.json
@@ -0,0 +1,68 @@
+{
+  "_from": "to-array@0.1.4",
+  "_id": "to-array@0.1.4",
+  "_inBundle": false,
+  "_integrity": "sha1-F+bBH3PdTz10zaek/zI46a2b+JA=",
+  "_location": "/to-array",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "to-array@0.1.4",
+    "name": "to-array",
+    "escapedName": "to-array",
+    "rawSpec": "0.1.4",
+    "saveSpec": null,
+    "fetchSpec": "0.1.4"
+  },
+  "_requiredBy": [
+    "/socket.io-client"
+  ],
+  "_resolved": "https://registry.npmjs.org/to-array/-/to-array-0.1.4.tgz",
+  "_shasum": "17e6c11f73dd4f3d74cda7a4ff3238e9ad9bf890",
+  "_spec": "to-array@0.1.4",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/socket.io-client",
+  "author": {
+    "name": "Raynos",
+    "email": "raynos2@gmail.com"
+  },
+  "bugs": {
+    "url": "https://github.com/Raynos/to-array/issues",
+    "email": "raynos2@gmail.com"
+  },
+  "bundleDependencies": false,
+  "component": {
+    "scripts": {
+      "to-array/index.js": "index.js"
+    }
+  },
+  "contributors": [
+    {
+      "name": "Jake Verbaten"
+    }
+  ],
+  "dependencies": {},
+  "deprecated": false,
+  "description": "Turn an array like into an array",
+  "devDependencies": {
+    "tap": "~0.3.1"
+  },
+  "homepage": "https://github.com/Raynos/to-array",
+  "keywords": [],
+  "licenses": [
+    {
+      "type": "MIT",
+      "url": "http://github.com/Raynos/to-array/raw/master/LICENSE"
+    }
+  ],
+  "main": "index",
+  "name": "to-array",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/Raynos/to-array.git"
+  },
+  "scripts": {
+    "test": "tap --stderr --tap ./test"
+  },
+  "version": "0.1.4"
+}
diff --git a/helloworld/node_modules/to-readable-stream/index.js b/helloworld/node_modules/to-readable-stream/index.js
new file mode 100755
index 0000000..554bfa5
--- /dev/null
+++ b/helloworld/node_modules/to-readable-stream/index.js
@@ -0,0 +1,11 @@
+'use strict';
+const {Readable} = require('stream');
+
+module.exports = input => (
+	new Readable({
+		read() {
+			this.push(input);
+			this.push(null);
+		}
+	})
+);
diff --git a/helloworld/node_modules/to-readable-stream/license b/helloworld/node_modules/to-readable-stream/license
new file mode 100755
index 0000000..e7af2f7
--- /dev/null
+++ b/helloworld/node_modules/to-readable-stream/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/to-readable-stream/readme.md b/helloworld/node_modules/to-readable-stream/readme.md
new file mode 100755
index 0000000..fc207c5
--- /dev/null
+++ b/helloworld/node_modules/to-readable-stream/readme.md
@@ -0,0 +1,42 @@
+# to-readable-stream [![Build Status](https://travis-ci.org/sindresorhus/to-readable-stream.svg?branch=master)](https://travis-ci.org/sindresorhus/to-readable-stream)
+
+> Convert a string/Buffer/Uint8Array to a [readable stream](https://nodejs.org/api/stream.html#stream_readable_streams)
+
+
+## Install
+
+```
+$ npm install to-readable-stream
+```
+
+
+## Usage
+
+```js
+const toReadableStream = require('to-readable-stream');
+
+toReadableStream('🦄🌈').pipe(process.stdout);
+```
+
+
+## API
+
+### toReadableStream(input)
+
+Returns a [`stream.Readable`](https://nodejs.org/api/stream.html#stream_readable_streams).
+
+#### input
+
+Type: `string` `Buffer` `Uint8Array`
+
+Value to convert to a stream.
+
+
+## Related
+
+- [into-stream](https://github.com/sindresorhus/into-stream) - More advanced version of this module
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/helloworld/node_modules/url-parse-lax/index.js b/helloworld/node_modules/url-parse-lax/index.js
new file mode 100755
index 0000000..5c62a58
--- /dev/null
+++ b/helloworld/node_modules/url-parse-lax/index.js
@@ -0,0 +1,12 @@
+'use strict';
+const url = require('url');
+const prependHttp = require('prepend-http');
+
+module.exports = (input, options) => {
+	if (typeof input !== 'string') {
+		throw new TypeError(`Expected \`url\` to be of type \`string\`, got \`${typeof input}\` instead.`);
+	}
+
+	const finalUrl = prependHttp(input, Object.assign({https: true}, options));
+	return url.parse(finalUrl);
+};
diff --git a/helloworld/node_modules/url-parse-lax/license b/helloworld/node_modules/url-parse-lax/license
new file mode 100755
index 0000000..e7af2f7
--- /dev/null
+++ b/helloworld/node_modules/url-parse-lax/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/url-parse-lax/readme.md b/helloworld/node_modules/url-parse-lax/readme.md
new file mode 100755
index 0000000..be0d437
--- /dev/null
+++ b/helloworld/node_modules/url-parse-lax/readme.md
@@ -0,0 +1,127 @@
+# url-parse-lax [![Build Status](https://travis-ci.org/sindresorhus/url-parse-lax.svg?branch=master)](https://travis-ci.org/sindresorhus/url-parse-lax)
+
+> Lax [`url.parse()`](https://nodejs.org/docs/latest/api/url.html#url_url_parse_urlstr_parsequerystring_slashesdenotehost) with support for protocol-less URLs & IPs
+
+
+## Install
+
+```
+$ npm install url-parse-lax
+```
+
+
+## Usage
+
+```js
+const urlParseLax = require('url-parse-lax');
+
+urlParseLax('sindresorhus.com');
+/*
+{
+	protocol: 'https:',
+	slashes: true,
+	auth: null,
+	host: 'sindresorhus.com',
+	port: null,
+	hostname: 'sindresorhus.com',
+	hash: null,
+	search: null,
+	query: null,
+	pathname: '/',
+	path: '/',
+	href: 'https://sindresorhus.com/'
+}
+*/
+
+urlParseLax('[2001:db8::]:8000');
+/*
+{
+	protocol: null,
+	slashes: true,
+	auth: null,
+	host: '[2001:db8::]:8000',
+	port: '8000',
+	hostname: '2001:db8::',
+	hash: null,
+	search: null,
+	query: null,
+	pathname: '/',
+	path: '/',
+	href: 'http://[2001:db8::]:8000/'
+}
+*/
+```
+
+And with the built-in `url.parse()`:
+
+```js
+const url = require('url');
+
+url.parse('sindresorhus.com');
+/*
+{
+	protocol: null,
+	slashes: null,
+	auth: null,
+	host: null,
+	port: null,
+	hostname: null,
+	hash: null,
+	search: null,
+	query: null,
+	pathname: 'sindresorhus',
+	path: 'sindresorhus',
+	href: 'sindresorhus'
+}
+*/
+
+url.parse('[2001:db8::]:8000');
+/*
+{
+	protocol: null,
+	slashes: null,
+	auth: null,
+	host: null,
+	port: null,
+	hostname: null,
+	hash: null,
+	search: null,
+	query: null,
+	pathname: '[2001:db8::]:8000',
+	path: '[2001:db8::]:8000',
+	href: '[2001:db8::]:8000'
+}
+*/
+```
+
+
+## API
+
+### urlParseLax(url, [options])
+
+#### url
+
+Type: `string`
+
+URL to parse.
+
+#### options
+
+Type: `Object`
+
+##### https
+
+Type: `boolean`<br>
+Default: `true`
+
+Prepend `https://` instead of `http://` to protocol-less URLs.
+
+
+## Related
+
+- [url-format-lax](https://github.com/sindresorhus/url-format-lax) - Lax `url.format()` that formats a hostname and port into IPv6-compatible socket form of `hostname:port`
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/helloworld/node_modules/validate-npm-package-license/LICENSE b/helloworld/node_modules/validate-npm-package-license/LICENSE
new file mode 100755
index 0000000..d645695
--- /dev/null
+++ b/helloworld/node_modules/validate-npm-package-license/LICENSE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
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+      "License" shall mean the terms and conditions for use, reproduction,
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+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
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+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
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+   9. Accepting Warranty or Additional Liability. While redistributing
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+      on Your own behalf and on Your sole responsibility, not on behalf
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+
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+
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+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
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+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
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diff --git a/helloworld/node_modules/validate-npm-package-license/README.md b/helloworld/node_modules/validate-npm-package-license/README.md
new file mode 100755
index 0000000..702bc7b
--- /dev/null
+++ b/helloworld/node_modules/validate-npm-package-license/README.md
@@ -0,0 +1,113 @@
+validate-npm-package-license
+============================
+
+Give me a string and I'll tell you if it's a valid npm package license string.
+
+```javascript
+var valid = require('validate-npm-package-license');
+```
+
+SPDX license identifiers are valid license strings:
+
+```javascript
+
+var assert = require('assert');
+var validSPDXExpression = {
+  validForNewPackages: true,
+  validForOldPackages: true,
+  spdx: true
+};
+
+assert.deepEqual(valid('MIT'), validSPDXExpression);
+assert.deepEqual(valid('BSD-2-Clause'), validSPDXExpression);
+assert.deepEqual(valid('Apache-2.0'), validSPDXExpression);
+assert.deepEqual(valid('ISC'), validSPDXExpression);
+```
+The function will return a warning and suggestion for nearly-correct license identifiers:
+
+```javascript
+assert.deepEqual(
+  valid('Apache 2.0'),
+  {
+    validForOldPackages: false,
+    validForNewPackages: false,
+    warnings: [
+      'license should be ' +
+      'a valid SPDX license expression (without "LicenseRef"), ' +
+      '"UNLICENSED", or ' +
+      '"SEE LICENSE IN <filename>"',
+      'license is similar to the valid expression "Apache-2.0"'
+    ]
+  }
+);
+```
+
+SPDX expressions are valid, too ...
+
+```javascript
+// Simple SPDX license expression for dual licensing
+assert.deepEqual(
+  valid('(GPL-3.0-only OR BSD-2-Clause)'),
+  validSPDXExpression
+);
+```
+
+... except if they contain `LicenseRef`:
+
+```javascript
+var warningAboutLicenseRef = {
+  validForOldPackages: false,
+  validForNewPackages: false,
+  spdx: true,
+  warnings: [
+    'license should be ' +
+    'a valid SPDX license expression (without "LicenseRef"), ' +
+    '"UNLICENSED", or ' +
+    '"SEE LICENSE IN <filename>"',
+  ]
+};
+
+assert.deepEqual(
+  valid('LicenseRef-Made-Up'),
+  warningAboutLicenseRef
+);
+
+assert.deepEqual(
+  valid('(MIT OR LicenseRef-Made-Up)'),
+  warningAboutLicenseRef
+);
+```
+
+If you can't describe your licensing terms with standardized SPDX identifiers, put the terms in a file in the package and point users there:
+
+```javascript
+assert.deepEqual(
+  valid('SEE LICENSE IN LICENSE.txt'),
+  {
+    validForNewPackages: true,
+    validForOldPackages: true,
+    inFile: 'LICENSE.txt'
+  }
+);
+
+assert.deepEqual(
+  valid('SEE LICENSE IN license.md'),
+  {
+    validForNewPackages: true,
+    validForOldPackages: true,
+    inFile: 'license.md'
+  }
+);
+```
+
+If there aren't any licensing terms, use `UNLICENSED`:
+
+```javascript
+var unlicensed = {
+  validForNewPackages: true,
+  validForOldPackages: true,
+  unlicensed: true
+};
+assert.deepEqual(valid('UNLICENSED'), unlicensed);
+assert.deepEqual(valid('UNLICENCED'), unlicensed);
+```
diff --git a/helloworld/node_modules/validate-npm-package-license/index.js b/helloworld/node_modules/validate-npm-package-license/index.js
new file mode 100755
index 0000000..35eaa73
--- /dev/null
+++ b/helloworld/node_modules/validate-npm-package-license/index.js
@@ -0,0 +1,86 @@
+var parse = require('spdx-expression-parse');
+var correct = require('spdx-correct');
+
+var genericWarning = (
+  'license should be ' +
+  'a valid SPDX license expression (without "LicenseRef"), ' +
+  '"UNLICENSED", or ' +
+  '"SEE LICENSE IN <filename>"'
+);
+
+var fileReferenceRE = /^SEE LICEN[CS]E IN (.+)$/;
+
+function startsWith(prefix, string) {
+  return string.slice(0, prefix.length) === prefix;
+}
+
+function usesLicenseRef(ast) {
+  if (ast.hasOwnProperty('license')) {
+    var license = ast.license;
+    return (
+      startsWith('LicenseRef', license) ||
+      startsWith('DocumentRef', license)
+    );
+  } else {
+    return (
+      usesLicenseRef(ast.left) ||
+      usesLicenseRef(ast.right)
+    );
+  }
+}
+
+module.exports = function(argument) {
+  var ast;
+
+  try {
+    ast = parse(argument);
+  } catch (e) {
+    var match
+    if (
+      argument === 'UNLICENSED' ||
+      argument === 'UNLICENCED'
+    ) {
+      return {
+        validForOldPackages: true,
+        validForNewPackages: true,
+        unlicensed: true
+      };
+    } else if (match = fileReferenceRE.exec(argument)) {
+      return {
+        validForOldPackages: true,
+        validForNewPackages: true,
+        inFile: match[1]
+      };
+    } else {
+      var result = {
+        validForOldPackages: false,
+        validForNewPackages: false,
+        warnings: [genericWarning]
+      };
+      if (argument.trim().length !== 0) {
+        var corrected = correct(argument);
+        if (corrected) {
+          result.warnings.push(
+            'license is similar to the valid expression "' + corrected + '"'
+          );
+        }
+      }
+      return result;
+    }
+  }
+
+  if (usesLicenseRef(ast)) {
+    return {
+      validForNewPackages: false,
+      validForOldPackages: false,
+      spdx: true,
+      warnings: [genericWarning]
+    };
+  } else {
+    return {
+      validForNewPackages: true,
+      validForOldPackages: true,
+      spdx: true
+    };
+  }
+};
diff --git a/helloworld/node_modules/validate-npm-package-license/package.json b/helloworld/node_modules/validate-npm-package-license/package.json
new file mode 100755
index 0000000..41655ce
--- /dev/null
+++ b/helloworld/node_modules/validate-npm-package-license/package.json
@@ -0,0 +1,67 @@
+{
+  "_from": "validate-npm-package-license@^3.0.1",
+  "_id": "validate-npm-package-license@3.0.4",
+  "_inBundle": false,
+  "_integrity": "sha512-DpKm2Ui/xN7/HQKCtpZxoRWBhZ9Z0kqtygG8XCgNQ8ZlDnxuQmWhj566j8fN4Cu3/JmbhsDo7fcAJq4s9h27Ew==",
+  "_location": "/validate-npm-package-license",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "validate-npm-package-license@^3.0.1",
+    "name": "validate-npm-package-license",
+    "escapedName": "validate-npm-package-license",
+    "rawSpec": "^3.0.1",
+    "saveSpec": null,
+    "fetchSpec": "^3.0.1"
+  },
+  "_requiredBy": [
+    "/normalize-package-data"
+  ],
+  "_resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz",
+  "_shasum": "fc91f6b9c7ba15c857f4cb2c5defeec39d4f410a",
+  "_spec": "validate-npm-package-license@^3.0.1",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/normalize-package-data",
+  "author": {
+    "name": "Kyle E. Mitchell",
+    "email": "kyle@kemitchell.com",
+    "url": "https://kemitchell.com"
+  },
+  "bugs": {
+    "url": "https://github.com/kemitchell/validate-npm-package-license.js/issues"
+  },
+  "bundleDependencies": false,
+  "contributors": [
+    {
+      "name": "Mark Stacey",
+      "email": "markjstacey@gmail.com"
+    }
+  ],
+  "dependencies": {
+    "spdx-correct": "^3.0.0",
+    "spdx-expression-parse": "^3.0.0"
+  },
+  "deprecated": false,
+  "description": "Give me a string and I'll tell you if it's a valid npm package license string",
+  "devDependencies": {
+    "defence-cli": "^2.0.1",
+    "replace-require-self": "^1.0.0"
+  },
+  "homepage": "https://github.com/kemitchell/validate-npm-package-license.js#readme",
+  "keywords": [
+    "license",
+    "npm",
+    "package",
+    "validation"
+  ],
+  "license": "Apache-2.0",
+  "name": "validate-npm-package-license",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/kemitchell/validate-npm-package-license.js.git"
+  },
+  "scripts": {
+    "test": "defence README.md | replace-require-self | node"
+  },
+  "version": "3.0.4"
+}
diff --git a/helloworld/node_modules/which-module/CHANGELOG.md b/helloworld/node_modules/which-module/CHANGELOG.md
new file mode 100755
index 0000000..6c8f5f2
--- /dev/null
+++ b/helloworld/node_modules/which-module/CHANGELOG.md
@@ -0,0 +1,11 @@
+# Change Log
+
+All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
+
+<a name="1.0.0"></a>
+# 1.0.0 (2016-06-06)
+
+
+### Features
+
+* initial code ([08074cd](https://github.com/nexdrew/which-module/commit/08074cd))
diff --git a/helloworld/node_modules/which-module/LICENSE b/helloworld/node_modules/which-module/LICENSE
new file mode 100755
index 0000000..ab601b6
--- /dev/null
+++ b/helloworld/node_modules/which-module/LICENSE
@@ -0,0 +1,13 @@
+Copyright (c) 2016, Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any purpose
+with or without fee is hereby granted, provided that the above copyright notice
+and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
+THIS SOFTWARE.
diff --git a/helloworld/node_modules/which-module/README.md b/helloworld/node_modules/which-module/README.md
new file mode 100755
index 0000000..a8c4bf8
--- /dev/null
+++ b/helloworld/node_modules/which-module/README.md
@@ -0,0 +1,55 @@
+# which-module
+
+> Find the module object for something that was require()d
+
+[![Build Status](https://travis-ci.org/nexdrew/which-module.svg?branch=master)](https://travis-ci.org/nexdrew/which-module)
+[![Coverage Status](https://coveralls.io/repos/github/nexdrew/which-module/badge.svg?branch=master)](https://coveralls.io/github/nexdrew/which-module?branch=master)
+[![Standard Version](https://img.shields.io/badge/release-standard%20version-brightgreen.svg)](https://github.com/conventional-changelog/standard-version)
+
+Find the `module` object in `require.cache` for something that was `require()`d
+or `import`ed - essentially a reverse `require()` lookup.
+
+Useful for libs that want to e.g. lookup a filename for a module or submodule
+that it did not `require()` itself.
+
+## Install and Usage
+
+```
+npm install --save which-module
+```
+
+```js
+const whichModule = require('which-module')
+
+console.log(whichModule(require('something')))
+// Module {
+//   id: '/path/to/project/node_modules/something/index.js',
+//   exports: [Function],
+//   parent: ...,
+//   filename: '/path/to/project/node_modules/something/index.js',
+//   loaded: true,
+//   children: [],
+//   paths: [ '/path/to/project/node_modules/something/node_modules',
+//            '/path/to/project/node_modules',
+//            '/path/to/node_modules',
+//            '/path/node_modules',
+//            '/node_modules' ] }
+```
+
+## API
+
+### `whichModule(exported)`
+
+Return the [`module` object](https://nodejs.org/api/modules.html#modules_the_module_object),
+if any, that represents the given argument in the `require.cache`.
+
+`exported` can be anything that was previously `require()`d or `import`ed as a
+module, submodule, or dependency - which means `exported` is identical to the
+`module.exports` returned by this method.
+
+If `exported` did not come from the `exports` of a `module` in `require.cache`,
+then this method returns `null`.
+
+## License
+
+ISC © Contributors
diff --git a/helloworld/node_modules/which-module/index.js b/helloworld/node_modules/which-module/index.js
new file mode 100755
index 0000000..45559b7
--- /dev/null
+++ b/helloworld/node_modules/which-module/index.js
@@ -0,0 +1,9 @@
+'use strict'
+
+module.exports = function whichModule (exported) {
+  for (var i = 0, files = Object.keys(require.cache), mod; i < files.length; i++) {
+    mod = require.cache[files[i]]
+    if (mod.exports === exported) return mod
+  }
+  return null
+}
diff --git a/helloworld/node_modules/wrap-ansi/index.js b/helloworld/node_modules/wrap-ansi/index.js
new file mode 100755
index 0000000..ff62543
--- /dev/null
+++ b/helloworld/node_modules/wrap-ansi/index.js
@@ -0,0 +1,168 @@
+'use strict';
+var stringWidth = require('string-width');
+var stripAnsi = require('strip-ansi');
+
+var ESCAPES = [
+	'\u001b',
+	'\u009b'
+];
+
+var END_CODE = 39;
+
+var ESCAPE_CODES = {
+	0: 0,
+	1: 22,
+	2: 22,
+	3: 23,
+	4: 24,
+	7: 27,
+	8: 28,
+	9: 29,
+	30: 39,
+	31: 39,
+	32: 39,
+	33: 39,
+	34: 39,
+	35: 39,
+	36: 39,
+	37: 39,
+	90: 39,
+	40: 49,
+	41: 49,
+	42: 49,
+	43: 49,
+	44: 49,
+	45: 49,
+	46: 49,
+	47: 49
+};
+
+function wrapAnsi(code) {
+	return ESCAPES[0] + '[' + code + 'm';
+}
+
+// calculate the length of words split on ' ', ignoring
+// the extra characters added by ansi escape codes.
+function wordLengths(str) {
+	return str.split(' ').map(function (s) {
+		return stringWidth(s);
+	});
+}
+
+// wrap a long word across multiple rows.
+// ansi escape codes do not count towards length.
+function wrapWord(rows, word, cols) {
+	var insideEscape = false;
+	var visible = stripAnsi(rows[rows.length - 1]).length;
+
+	for (var i = 0; i < word.length; i++) {
+		var x = word[i];
+
+		rows[rows.length - 1] += x;
+
+		if (ESCAPES.indexOf(x) !== -1) {
+			insideEscape = true;
+		} else if (insideEscape && x === 'm') {
+			insideEscape = false;
+			continue;
+		}
+
+		if (insideEscape) {
+			continue;
+		}
+
+		visible++;
+
+		if (visible >= cols && i < word.length - 1) {
+			rows.push('');
+			visible = 0;
+		}
+	}
+
+	// it's possible that the last row we copy over is only
+	// ansi escape characters, handle this edge-case.
+	if (!visible && rows[rows.length - 1].length > 0 && rows.length > 1) {
+		rows[rows.length - 2] += rows.pop();
+	}
+}
+
+// the wrap-ansi module can be invoked
+// in either 'hard' or 'soft' wrap mode.
+//
+// 'hard' will never allow a string to take up more
+// than cols characters.
+//
+// 'soft' allows long words to expand past the column length.
+function exec(str, cols, opts) {
+	var options = opts || {};
+
+	var pre = '';
+	var ret = '';
+	var escapeCode;
+
+	var lengths = wordLengths(str);
+	var words = str.split(' ');
+	var rows = [''];
+
+	for (var i = 0, word; (word = words[i]) !== undefined; i++) {
+		var rowLength = stringWidth(rows[rows.length - 1]);
+
+		if (rowLength) {
+			rows[rows.length - 1] += ' ';
+			rowLength++;
+		}
+
+		// in 'hard' wrap mode, the length of a line is
+		// never allowed to extend past 'cols'.
+		if (lengths[i] > cols && options.hard) {
+			if (rowLength) {
+				rows.push('');
+			}
+			wrapWord(rows, word, cols);
+			continue;
+		}
+
+		if (rowLength + lengths[i] > cols && rowLength > 0) {
+			if (options.wordWrap === false && rowLength < cols) {
+				wrapWord(rows, word, cols);
+				continue;
+			}
+
+			rows.push('');
+		}
+
+		rows[rows.length - 1] += word;
+	}
+
+	pre = rows.map(function (r) {
+		return r.trim();
+	}).join('\n');
+
+	for (var j = 0; j < pre.length; j++) {
+		var y = pre[j];
+
+		ret += y;
+
+		if (ESCAPES.indexOf(y) !== -1) {
+			var code = parseFloat(/[0-9][^m]*/.exec(pre.slice(j, j + 4)));
+			escapeCode = code === END_CODE ? null : code;
+		}
+
+		if (escapeCode && ESCAPE_CODES[escapeCode]) {
+			if (pre[j + 1] === '\n') {
+				ret += wrapAnsi(ESCAPE_CODES[escapeCode]);
+			} else if (y === '\n') {
+				ret += wrapAnsi(escapeCode);
+			}
+		}
+	}
+
+	return ret;
+}
+
+// for each line break, invoke the method separately.
+module.exports = function (str, cols, opts) {
+	return String(str).split('\n').map(function (substr) {
+		return exec(substr, cols, opts);
+	}).join('\n');
+};
diff --git a/helloworld/node_modules/wrap-ansi/license b/helloworld/node_modules/wrap-ansi/license
new file mode 100755
index 0000000..654d0bf
--- /dev/null
+++ b/helloworld/node_modules/wrap-ansi/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/wrap-ansi/readme.md b/helloworld/node_modules/wrap-ansi/readme.md
new file mode 100755
index 0000000..59fc96b
--- /dev/null
+++ b/helloworld/node_modules/wrap-ansi/readme.md
@@ -0,0 +1,73 @@
+# wrap-ansi [![Build Status](https://travis-ci.org/chalk/wrap-ansi.svg?branch=master)](https://travis-ci.org/chalk/wrap-ansi) [![Coverage Status](https://coveralls.io/repos/github/chalk/wrap-ansi/badge.svg?branch=master)](https://coveralls.io/github/chalk/wrap-ansi?branch=master)
+
+> Wordwrap a string with [ANSI escape codes](http://en.wikipedia.org/wiki/ANSI_escape_code#Colors_and_Styles)
+
+
+## Install
+
+```
+$ npm install --save wrap-ansi
+```
+
+
+## Usage
+
+```js
+const chalk = require('chalk');
+const wrapAnsi = require('wrap-ansi');
+
+const input = 'The quick brown ' + chalk.red('fox jumped over ') +
+	'the lazy ' + chalk.green('dog and then ran away with the unicorn.');
+
+console.log(wrapAnsi(input, 20));
+```
+
+<img width="331" src="screenshot.png">
+
+
+## API
+
+### wrapAnsi(input, columns, [options])
+
+Wrap words to the specified column width.
+
+#### input
+
+Type: `string`
+
+String with ANSI escape codes. Like one styled by [`chalk`](https://github.com/chalk/chalk).
+
+#### columns
+
+Type: `number`
+
+Number of columns to wrap the text to.
+
+#### options
+
+##### hard
+
+Type: `boolean`<br>
+Default: `false`
+
+By default the wrap is soft, meaning long words may extend past the column width. Setting this to `true` will make it hard wrap at the column width.
+
+##### wordWrap
+
+Type: `boolean`<br>
+Default: `true`
+
+By default, an attempt is made to split words at spaces, ensuring that they don't extend past the configured columns. If wordWrap is `false`, each column will instead be completely filled splitting words as necessary.
+
+
+## Related
+
+- [slice-ansi](https://github.com/chalk/slice-ansi) - Slice a string with ANSI escape codes
+- [cli-truncate](https://github.com/sindresorhus/cli-truncate) - Truncate a string to a specific width in the terminal
+- [chalk](https://github.com/chalk/chalk) - Terminal string styling done right
+- [jsesc](https://github.com/mathiasbynens/jsesc) - Generate ASCII-only output from Unicode strings. Useful for creating test fixtures.
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/helloworld/node_modules/wrappy/LICENSE b/helloworld/node_modules/wrappy/LICENSE
new file mode 100755
index 0000000..19129e3
--- /dev/null
+++ b/helloworld/node_modules/wrappy/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/helloworld/node_modules/wrappy/README.md b/helloworld/node_modules/wrappy/README.md
new file mode 100755
index 0000000..98eab25
--- /dev/null
+++ b/helloworld/node_modules/wrappy/README.md
@@ -0,0 +1,36 @@
+# wrappy
+
+Callback wrapping utility
+
+## USAGE
+
+```javascript
+var wrappy = require("wrappy")
+
+// var wrapper = wrappy(wrapperFunction)
+
+// make sure a cb is called only once
+// See also: http://npm.im/once for this specific use case
+var once = wrappy(function (cb) {
+  var called = false
+  return function () {
+    if (called) return
+    called = true
+    return cb.apply(this, arguments)
+  }
+})
+
+function printBoo () {
+  console.log('boo')
+}
+// has some rando property
+printBoo.iAmBooPrinter = true
+
+var onlyPrintOnce = once(printBoo)
+
+onlyPrintOnce() // prints 'boo'
+onlyPrintOnce() // does nothing
+
+// random property is retained!
+assert.equal(onlyPrintOnce.iAmBooPrinter, true)
+```
diff --git a/helloworld/node_modules/wrappy/wrappy.js b/helloworld/node_modules/wrappy/wrappy.js
new file mode 100755
index 0000000..bb7e7d6
--- /dev/null
+++ b/helloworld/node_modules/wrappy/wrappy.js
@@ -0,0 +1,33 @@
+// Returns a wrapper function that returns a wrapped callback
+// The wrapper function should do some stuff, and return a
+// presumably different callback function.
+// This makes sure that own properties are retained, so that
+// decorations and such are not lost along the way.
+module.exports = wrappy
+function wrappy (fn, cb) {
+  if (fn && cb) return wrappy(fn)(cb)
+
+  if (typeof fn !== 'function')
+    throw new TypeError('need wrapper function')
+
+  Object.keys(fn).forEach(function (k) {
+    wrapper[k] = fn[k]
+  })
+
+  return wrapper
+
+  function wrapper() {
+    var args = new Array(arguments.length)
+    for (var i = 0; i < args.length; i++) {
+      args[i] = arguments[i]
+    }
+    var ret = fn.apply(this, args)
+    var cb = args[args.length-1]
+    if (typeof ret === 'function' && ret !== cb) {
+      Object.keys(cb).forEach(function (k) {
+        ret[k] = cb[k]
+      })
+    }
+    return ret
+  }
+}
diff --git a/helloworld/node_modules/ws/LICENSE b/helloworld/node_modules/ws/LICENSE
new file mode 100755
index 0000000..a145cd1
--- /dev/null
+++ b/helloworld/node_modules/ws/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2011 Einar Otto Stangvik <einaros@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/helloworld/node_modules/ws/README.md b/helloworld/node_modules/ws/README.md
new file mode 100755
index 0000000..7c87b11
--- /dev/null
+++ b/helloworld/node_modules/ws/README.md
@@ -0,0 +1,449 @@
+# ws: a Node.js WebSocket library
+
+[![Version npm](https://img.shields.io/npm/v/ws.svg)](https://www.npmjs.com/package/ws)
+[![Linux Build](https://img.shields.io/travis/websockets/ws/master.svg)](https://travis-ci.org/websockets/ws)
+[![Windows Build](https://ci.appveyor.com/api/projects/status/github/websockets/ws?branch=master&svg=true)](https://ci.appveyor.com/project/lpinca/ws)
+[![Coverage Status](https://img.shields.io/coveralls/websockets/ws/master.svg)](https://coveralls.io/r/websockets/ws?branch=master)
+
+ws is a simple to use, blazing fast, and thoroughly tested WebSocket client and
+server implementation.
+
+Passes the quite extensive Autobahn test suite: [server][server-report],
+[client][client-report].
+
+**Note**: This module does not work in the browser. The client in the docs is a
+reference to a back end with the role of a client in the WebSocket
+communication. Browser clients must use the native
+[`WebSocket`](https://developer.mozilla.org/en-US/docs/Web/API/WebSocket)
+object. To make the same code work seamlessly on Node.js and the browser, you
+can use one of the many wrappers available on npm, like
+[isomorphic-ws](https://github.com/heineiuo/isomorphic-ws).
+
+## Table of Contents
+
+- [Protocol support](#protocol-support)
+- [Installing](#installing)
+  - [Opt-in for performance and spec compliance](#opt-in-for-performance-and-spec-compliance)
+- [API docs](#api-docs)
+- [WebSocket compression](#websocket-compression)
+- [Usage examples](#usage-examples)
+  - [Sending and receiving text data](#sending-and-receiving-text-data)
+  - [Sending binary data](#sending-binary-data)
+  - [Simple server](#simple-server)
+  - [External HTTP/S server](#external-https-server)
+  - [Multiple servers sharing a single HTTP/S server](#multiple-servers-sharing-a-single-https-server)
+  - [Server broadcast](#server-broadcast)
+  - [echo.websocket.org demo](#echowebsocketorg-demo)
+  - [Other examples](#other-examples)
+- [Error handling best practices](#error-handling-best-practices)
+- [FAQ](#faq)
+  - [How to get the IP address of the client?](#how-to-get-the-ip-address-of-the-client)
+  - [How to detect and close broken connections?](#how-to-detect-and-close-broken-connections)
+  - [How to connect via a proxy?](#how-to-connect-via-a-proxy)
+- [Changelog](#changelog)
+- [License](#license)
+
+## Protocol support
+
+- **HyBi drafts 07-12** (Use the option `protocolVersion: 8`)
+- **HyBi drafts 13-17** (Current default, alternatively option
+  `protocolVersion: 13`)
+
+## Installing
+
+```
+npm install ws
+```
+
+### Opt-in for performance and spec compliance
+
+There are 2 optional modules that can be installed along side with the ws
+module. These modules are binary addons which improve certain operations.
+Prebuilt binaries are available for the most popular platforms so you don't
+necessarily need to have a C++ compiler installed on your machine.
+
+- `npm install --save-optional bufferutil`: Allows to efficiently perform
+  operations such as masking and unmasking the data payload of the WebSocket
+  frames.
+- `npm install --save-optional utf-8-validate`: Allows to efficiently check if a
+  message contains valid UTF-8 as required by the spec.
+
+## API docs
+
+See [`/doc/ws.md`](./doc/ws.md) for Node.js-like docs for the ws classes.
+
+## WebSocket compression
+
+ws supports the [permessage-deflate extension][permessage-deflate] which enables
+the client and server to negotiate a compression algorithm and its parameters,
+and then selectively apply it to the data payloads of each WebSocket message.
+
+The extension is disabled by default on the server and enabled by default on the
+client. It adds a significant overhead in terms of performance and memory
+consumption so we suggest to enable it only if it is really needed.
+
+Note that Node.js has a variety of issues with high-performance compression,
+where increased concurrency, especially on Linux, can lead to [catastrophic
+memory fragmentation][node-zlib-bug] and slow performance. If you intend to use
+permessage-deflate in production, it is worthwhile to set up a test
+representative of your workload and ensure Node.js/zlib will handle it with
+acceptable performance and memory usage.
+
+Tuning of permessage-deflate can be done via the options defined below. You can
+also use `zlibDeflateOptions` and `zlibInflateOptions`, which is passed directly
+into the creation of [raw deflate/inflate streams][node-zlib-deflaterawdocs].
+
+See [the docs][ws-server-options] for more options.
+
+```js
+const WebSocket = require('ws');
+
+const wss = new WebSocket.Server({
+  port: 8080,
+  perMessageDeflate: {
+    zlibDeflateOptions: {
+      // See zlib defaults.
+      chunkSize: 1024,
+      memLevel: 7,
+      level: 3
+    },
+    zlibInflateOptions: {
+      chunkSize: 10 * 1024
+    },
+    // Other options settable:
+    clientNoContextTakeover: true, // Defaults to negotiated value.
+    serverNoContextTakeover: true, // Defaults to negotiated value.
+    serverMaxWindowBits: 10, // Defaults to negotiated value.
+    // Below options specified as default values.
+    concurrencyLimit: 10, // Limits zlib concurrency for perf.
+    threshold: 1024 // Size (in bytes) below which messages
+    // should not be compressed.
+  }
+});
+```
+
+The client will only use the extension if it is supported and enabled on the
+server. To always disable the extension on the client set the
+`perMessageDeflate` option to `false`.
+
+```js
+const WebSocket = require('ws');
+
+const ws = new WebSocket('ws://www.host.com/path', {
+  perMessageDeflate: false
+});
+```
+
+## Usage examples
+
+### Sending and receiving text data
+
+```js
+const WebSocket = require('ws');
+
+const ws = new WebSocket('ws://www.host.com/path');
+
+ws.on('open', function open() {
+  ws.send('something');
+});
+
+ws.on('message', function incoming(data) {
+  console.log(data);
+});
+```
+
+### Sending binary data
+
+```js
+const WebSocket = require('ws');
+
+const ws = new WebSocket('ws://www.host.com/path');
+
+ws.on('open', function open() {
+  const array = new Float32Array(5);
+
+  for (var i = 0; i < array.length; ++i) {
+    array[i] = i / 2;
+  }
+
+  ws.send(array);
+});
+```
+
+### Simple server
+
+```js
+const WebSocket = require('ws');
+
+const wss = new WebSocket.Server({ port: 8080 });
+
+wss.on('connection', function connection(ws) {
+  ws.on('message', function incoming(message) {
+    console.log('received: %s', message);
+  });
+
+  ws.send('something');
+});
+```
+
+### External HTTP/S server
+
+```js
+const fs = require('fs');
+const https = require('https');
+const WebSocket = require('ws');
+
+const server = new https.createServer({
+  cert: fs.readFileSync('/path/to/cert.pem'),
+  key: fs.readFileSync('/path/to/key.pem')
+});
+const wss = new WebSocket.Server({ server });
+
+wss.on('connection', function connection(ws) {
+  ws.on('message', function incoming(message) {
+    console.log('received: %s', message);
+  });
+
+  ws.send('something');
+});
+
+server.listen(8080);
+```
+
+### Multiple servers sharing a single HTTP/S server
+
+```js
+const http = require('http');
+const WebSocket = require('ws');
+
+const server = http.createServer();
+const wss1 = new WebSocket.Server({ noServer: true });
+const wss2 = new WebSocket.Server({ noServer: true });
+
+wss1.on('connection', function connection(ws) {
+  // ...
+});
+
+wss2.on('connection', function connection(ws) {
+  // ...
+});
+
+server.on('upgrade', function upgrade(request, socket, head) {
+  const pathname = url.parse(request.url).pathname;
+
+  if (pathname === '/foo') {
+    wss1.handleUpgrade(request, socket, head, function done(ws) {
+      wss1.emit('connection', ws, request);
+    });
+  } else if (pathname === '/bar') {
+    wss2.handleUpgrade(request, socket, head, function done(ws) {
+      wss2.emit('connection', ws, request);
+    });
+  } else {
+    socket.destroy();
+  }
+});
+
+server.listen(8080);
+```
+
+### Server broadcast
+
+```js
+const WebSocket = require('ws');
+
+const wss = new WebSocket.Server({ port: 8080 });
+
+// Broadcast to all.
+wss.broadcast = function broadcast(data) {
+  wss.clients.forEach(function each(client) {
+    if (client.readyState === WebSocket.OPEN) {
+      client.send(data);
+    }
+  });
+};
+
+wss.on('connection', function connection(ws) {
+  ws.on('message', function incoming(data) {
+    // Broadcast to everyone else.
+    wss.clients.forEach(function each(client) {
+      if (client !== ws && client.readyState === WebSocket.OPEN) {
+        client.send(data);
+      }
+    });
+  });
+});
+```
+
+### echo.websocket.org demo
+
+```js
+const WebSocket = require('ws');
+
+const ws = new WebSocket('wss://echo.websocket.org/', {
+  origin: 'https://websocket.org'
+});
+
+ws.on('open', function open() {
+  console.log('connected');
+  ws.send(Date.now());
+});
+
+ws.on('close', function close() {
+  console.log('disconnected');
+});
+
+ws.on('message', function incoming(data) {
+  console.log(`Roundtrip time: ${Date.now() - data} ms`);
+
+  setTimeout(function timeout() {
+    ws.send(Date.now());
+  }, 500);
+});
+```
+
+### Other examples
+
+For a full example with a browser client communicating with a ws server, see the
+examples folder.
+
+Otherwise, see the test cases.
+
+## Error handling best practices
+
+```js
+// If the WebSocket is closed before the following send is attempted
+ws.send('something');
+
+// Errors (both immediate and async write errors) can be detected in an optional
+// callback. The callback is also the only way of being notified that data has
+// actually been sent.
+ws.send('something', function ack(error) {
+  // If error is not defined, the send has been completed, otherwise the error
+  // object will indicate what failed.
+});
+
+// Immediate errors can also be handled with `try...catch`, but **note** that
+// since sends are inherently asynchronous, socket write failures will *not* be
+// captured when this technique is used.
+try {
+  ws.send('something');
+} catch (e) {
+  /* handle error */
+}
+```
+
+## FAQ
+
+### How to get the IP address of the client?
+
+The remote IP address can be obtained from the raw socket.
+
+```js
+const WebSocket = require('ws');
+
+const wss = new WebSocket.Server({ port: 8080 });
+
+wss.on('connection', function connection(ws, req) {
+  const ip = req.connection.remoteAddress;
+});
+```
+
+When the server runs behind a proxy like NGINX, the de-facto standard is to use
+the `X-Forwarded-For` header.
+
+```js
+wss.on('connection', function connection(ws, req) {
+  const ip = req.headers['x-forwarded-for'].split(/\s*,\s*/)[0];
+});
+```
+
+### How to detect and close broken connections?
+
+Sometimes the link between the server and the client can be interrupted in a way
+that keeps both the server and the client unaware of the broken state of the
+connection (e.g. when pulling the cord).
+
+In these cases ping messages can be used as a means to verify that the remote
+endpoint is still responsive.
+
+```js
+const WebSocket = require('ws');
+
+function noop() {}
+
+function heartbeat() {
+  this.isAlive = true;
+}
+
+const wss = new WebSocket.Server({ port: 8080 });
+
+wss.on('connection', function connection(ws) {
+  ws.isAlive = true;
+  ws.on('pong', heartbeat);
+});
+
+const interval = setInterval(function ping() {
+  wss.clients.forEach(function each(ws) {
+    if (ws.isAlive === false) return ws.terminate();
+
+    ws.isAlive = false;
+    ws.ping(noop);
+  });
+}, 30000);
+```
+
+Pong messages are automatically sent in response to ping messages as required by
+the spec.
+
+Just like the server example above your clients might as well lose connection
+without knowing it. You might want to add a ping listener on your clients to
+prevent that. A simple implementation would be:
+
+```js
+const WebSocket = require('ws');
+
+function heartbeat() {
+  clearTimeout(this.pingTimeout);
+
+  // Use `WebSocket#terminate()` and not `WebSocket#close()`. Delay should be
+  // equal to the interval at which your server sends out pings plus a
+  // conservative assumption of the latency.
+  this.pingTimeout = setTimeout(() => {
+    this.terminate();
+  }, 30000 + 1000);
+}
+
+const client = new WebSocket('wss://echo.websocket.org/');
+
+client.on('open', heartbeat);
+client.on('ping', heartbeat);
+client.on('close', function clear() {
+  clearTimeout(this.pingTimeout);
+});
+```
+
+### How to connect via a proxy?
+
+Use a custom `http.Agent` implementation like [https-proxy-agent][] or
+[socks-proxy-agent][].
+
+## Changelog
+
+We're using the GitHub [releases][changelog] for changelog entries.
+
+## License
+
+[MIT](LICENSE)
+
+[https-proxy-agent]: https://github.com/TooTallNate/node-https-proxy-agent
+[socks-proxy-agent]: https://github.com/TooTallNate/node-socks-proxy-agent
+[client-report]: http://websockets.github.io/ws/autobahn/clients/
+[server-report]: http://websockets.github.io/ws/autobahn/servers/
+[permessage-deflate]: https://tools.ietf.org/html/rfc7692
+[changelog]: https://github.com/websockets/ws/releases
+[node-zlib-bug]: https://github.com/nodejs/node/issues/8871
+[node-zlib-deflaterawdocs]:
+  https://nodejs.org/api/zlib.html#zlib_zlib_createdeflateraw_options
+[ws-server-options]:
+  https://github.com/websockets/ws/blob/master/doc/ws.md#new-websocketserveroptions-callback
diff --git a/helloworld/node_modules/ws/browser.js b/helloworld/node_modules/ws/browser.js
new file mode 100755
index 0000000..7820779
--- /dev/null
+++ b/helloworld/node_modules/ws/browser.js
@@ -0,0 +1,8 @@
+'use strict';
+
+module.exports = function() {
+  throw new Error(
+    'ws does not work in the browser. Browser clients must use the native ' +
+      'WebSocket object'
+  );
+};
diff --git a/helloworld/node_modules/ws/index.js b/helloworld/node_modules/ws/index.js
new file mode 100755
index 0000000..b8d6be1
--- /dev/null
+++ b/helloworld/node_modules/ws/index.js
@@ -0,0 +1,9 @@
+'use strict';
+
+const WebSocket = require('./lib/websocket');
+
+WebSocket.Server = require('./lib/websocket-server');
+WebSocket.Receiver = require('./lib/receiver');
+WebSocket.Sender = require('./lib/sender');
+
+module.exports = WebSocket;
diff --git a/helloworld/node_modules/ws/lib/buffer-util.js b/helloworld/node_modules/ws/lib/buffer-util.js
new file mode 100755
index 0000000..54867ac
--- /dev/null
+++ b/helloworld/node_modules/ws/lib/buffer-util.js
@@ -0,0 +1,72 @@
+'use strict';
+
+/**
+ * Merges an array of buffers into a new buffer.
+ *
+ * @param {Buffer[]} list The array of buffers to concat
+ * @param {Number} totalLength The total length of buffers in the list
+ * @return {Buffer} The resulting buffer
+ * @public
+ */
+function concat(list, totalLength) {
+  const target = Buffer.allocUnsafe(totalLength);
+  var offset = 0;
+
+  for (var i = 0; i < list.length; i++) {
+    const buf = list[i];
+    buf.copy(target, offset);
+    offset += buf.length;
+  }
+
+  return target;
+}
+
+/**
+ * Masks a buffer using the given mask.
+ *
+ * @param {Buffer} source The buffer to mask
+ * @param {Buffer} mask The mask to use
+ * @param {Buffer} output The buffer where to store the result
+ * @param {Number} offset The offset at which to start writing
+ * @param {Number} length The number of bytes to mask.
+ * @public
+ */
+function _mask(source, mask, output, offset, length) {
+  for (var i = 0; i < length; i++) {
+    output[offset + i] = source[i] ^ mask[i & 3];
+  }
+}
+
+/**
+ * Unmasks a buffer using the given mask.
+ *
+ * @param {Buffer} buffer The buffer to unmask
+ * @param {Buffer} mask The mask to use
+ * @public
+ */
+function _unmask(buffer, mask) {
+  // Required until https://github.com/nodejs/node/issues/9006 is resolved.
+  const length = buffer.length;
+  for (var i = 0; i < length; i++) {
+    buffer[i] ^= mask[i & 3];
+  }
+}
+
+try {
+  const bufferUtil = require('bufferutil');
+  const bu = bufferUtil.BufferUtil || bufferUtil;
+
+  module.exports = {
+    mask(source, mask, output, offset, length) {
+      if (length < 48) _mask(source, mask, output, offset, length);
+      else bu.mask(source, mask, output, offset, length);
+    },
+    unmask(buffer, mask) {
+      if (buffer.length < 32) _unmask(buffer, mask);
+      else bu.unmask(buffer, mask);
+    },
+    concat
+  };
+} catch (e) /* istanbul ignore next */ {
+  module.exports = { concat, mask: _mask, unmask: _unmask };
+}
diff --git a/helloworld/node_modules/ws/lib/constants.js b/helloworld/node_modules/ws/lib/constants.js
new file mode 100755
index 0000000..4082981
--- /dev/null
+++ b/helloworld/node_modules/ws/lib/constants.js
@@ -0,0 +1,10 @@
+'use strict';
+
+module.exports = {
+  BINARY_TYPES: ['nodebuffer', 'arraybuffer', 'fragments'],
+  GUID: '258EAFA5-E914-47DA-95CA-C5AB0DC85B11',
+  kStatusCode: Symbol('status-code'),
+  kWebSocket: Symbol('websocket'),
+  EMPTY_BUFFER: Buffer.alloc(0),
+  NOOP: () => {}
+};
diff --git a/helloworld/node_modules/ws/lib/event-target.js b/helloworld/node_modules/ws/lib/event-target.js
new file mode 100755
index 0000000..44c81d9
--- /dev/null
+++ b/helloworld/node_modules/ws/lib/event-target.js
@@ -0,0 +1,170 @@
+'use strict';
+
+/**
+ * Class representing an event.
+ *
+ * @private
+ */
+class Event {
+  /**
+   * Create a new `Event`.
+   *
+   * @param {String} type The name of the event
+   * @param {Object} target A reference to the target to which the event was dispatched
+   */
+  constructor(type, target) {
+    this.target = target;
+    this.type = type;
+  }
+}
+
+/**
+ * Class representing a message event.
+ *
+ * @extends Event
+ * @private
+ */
+class MessageEvent extends Event {
+  /**
+   * Create a new `MessageEvent`.
+   *
+   * @param {(String|Buffer|ArrayBuffer|Buffer[])} data The received data
+   * @param {WebSocket} target A reference to the target to which the event was dispatched
+   */
+  constructor(data, target) {
+    super('message', target);
+
+    this.data = data;
+  }
+}
+
+/**
+ * Class representing a close event.
+ *
+ * @extends Event
+ * @private
+ */
+class CloseEvent extends Event {
+  /**
+   * Create a new `CloseEvent`.
+   *
+   * @param {Number} code The status code explaining why the connection is being closed
+   * @param {String} reason A human-readable string explaining why the connection is closing
+   * @param {WebSocket} target A reference to the target to which the event was dispatched
+   */
+  constructor(code, reason, target) {
+    super('close', target);
+
+    this.wasClean = target._closeFrameReceived && target._closeFrameSent;
+    this.reason = reason;
+    this.code = code;
+  }
+}
+
+/**
+ * Class representing an open event.
+ *
+ * @extends Event
+ * @private
+ */
+class OpenEvent extends Event {
+  /**
+   * Create a new `OpenEvent`.
+   *
+   * @param {WebSocket} target A reference to the target to which the event was dispatched
+   */
+  constructor(target) {
+    super('open', target);
+  }
+}
+
+/**
+ * Class representing an error event.
+ *
+ * @extends Event
+ * @private
+ */
+class ErrorEvent extends Event {
+  /**
+   * Create a new `ErrorEvent`.
+   *
+   * @param {Object} error The error that generated this event
+   * @param {WebSocket} target A reference to the target to which the event was dispatched
+   */
+  constructor(error, target) {
+    super('error', target);
+
+    this.message = error.message;
+    this.error = error;
+  }
+}
+
+/**
+ * This provides methods for emulating the `EventTarget` interface. It's not
+ * meant to be used directly.
+ *
+ * @mixin
+ */
+const EventTarget = {
+  /**
+   * Register an event listener.
+   *
+   * @param {String} method A string representing the event type to listen for
+   * @param {Function} listener The listener to add
+   * @public
+   */
+  addEventListener(method, listener) {
+    if (typeof listener !== 'function') return;
+
+    function onMessage(data) {
+      listener.call(this, new MessageEvent(data, this));
+    }
+
+    function onClose(code, message) {
+      listener.call(this, new CloseEvent(code, message, this));
+    }
+
+    function onError(error) {
+      listener.call(this, new ErrorEvent(error, this));
+    }
+
+    function onOpen() {
+      listener.call(this, new OpenEvent(this));
+    }
+
+    if (method === 'message') {
+      onMessage._listener = listener;
+      this.on(method, onMessage);
+    } else if (method === 'close') {
+      onClose._listener = listener;
+      this.on(method, onClose);
+    } else if (method === 'error') {
+      onError._listener = listener;
+      this.on(method, onError);
+    } else if (method === 'open') {
+      onOpen._listener = listener;
+      this.on(method, onOpen);
+    } else {
+      this.on(method, listener);
+    }
+  },
+
+  /**
+   * Remove an event listener.
+   *
+   * @param {String} method A string representing the event type to remove
+   * @param {Function} listener The listener to remove
+   * @public
+   */
+  removeEventListener(method, listener) {
+    const listeners = this.listeners(method);
+
+    for (var i = 0; i < listeners.length; i++) {
+      if (listeners[i] === listener || listeners[i]._listener === listener) {
+        this.removeListener(method, listeners[i]);
+      }
+    }
+  }
+};
+
+module.exports = EventTarget;
diff --git a/helloworld/node_modules/ws/lib/extension.js b/helloworld/node_modules/ws/lib/extension.js
new file mode 100755
index 0000000..47096b9
--- /dev/null
+++ b/helloworld/node_modules/ws/lib/extension.js
@@ -0,0 +1,222 @@
+'use strict';
+
+//
+// Allowed token characters:
+//
+// '!', '#', '$', '%', '&', ''', '*', '+', '-',
+// '.', 0-9, A-Z, '^', '_', '`', a-z, '|', '~'
+//
+// tokenChars[32] === 0 // ' '
+// tokenChars[33] === 1 // '!'
+// tokenChars[34] === 0 // '"'
+// ...
+//
+// prettier-ignore
+const tokenChars = [
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0 - 15
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 16 - 31
+  0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, // 32 - 47
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, // 48 - 63
+  0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 64 - 79
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, // 80 - 95
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 96 - 111
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0 // 112 - 127
+];
+
+/**
+ * Adds an offer to the map of extension offers or a parameter to the map of
+ * parameters.
+ *
+ * @param {Object} dest The map of extension offers or parameters
+ * @param {String} name The extension or parameter name
+ * @param {(Object|Boolean|String)} elem The extension parameters or the
+ *     parameter value
+ * @private
+ */
+function push(dest, name, elem) {
+  if (Object.prototype.hasOwnProperty.call(dest, name)) dest[name].push(elem);
+  else dest[name] = [elem];
+}
+
+/**
+ * Parses the `Sec-WebSocket-Extensions` header into an object.
+ *
+ * @param {String} header The field value of the header
+ * @return {Object} The parsed object
+ * @public
+ */
+function parse(header) {
+  const offers = {};
+
+  if (header === undefined || header === '') return offers;
+
+  var params = {};
+  var mustUnescape = false;
+  var isEscaping = false;
+  var inQuotes = false;
+  var extensionName;
+  var paramName;
+  var start = -1;
+  var end = -1;
+
+  for (var i = 0; i < header.length; i++) {
+    const code = header.charCodeAt(i);
+
+    if (extensionName === undefined) {
+      if (end === -1 && tokenChars[code] === 1) {
+        if (start === -1) start = i;
+      } else if (code === 0x20 /* ' ' */ || code === 0x09 /* '\t' */) {
+        if (end === -1 && start !== -1) end = i;
+      } else if (code === 0x3b /* ';' */ || code === 0x2c /* ',' */) {
+        if (start === -1) {
+          throw new SyntaxError(`Unexpected character at index ${i}`);
+        }
+
+        if (end === -1) end = i;
+        const name = header.slice(start, end);
+        if (code === 0x2c) {
+          push(offers, name, params);
+          params = {};
+        } else {
+          extensionName = name;
+        }
+
+        start = end = -1;
+      } else {
+        throw new SyntaxError(`Unexpected character at index ${i}`);
+      }
+    } else if (paramName === undefined) {
+      if (end === -1 && tokenChars[code] === 1) {
+        if (start === -1) start = i;
+      } else if (code === 0x20 || code === 0x09) {
+        if (end === -1 && start !== -1) end = i;
+      } else if (code === 0x3b || code === 0x2c) {
+        if (start === -1) {
+          throw new SyntaxError(`Unexpected character at index ${i}`);
+        }
+
+        if (end === -1) end = i;
+        push(params, header.slice(start, end), true);
+        if (code === 0x2c) {
+          push(offers, extensionName, params);
+          params = {};
+          extensionName = undefined;
+        }
+
+        start = end = -1;
+      } else if (code === 0x3d /* '=' */ && start !== -1 && end === -1) {
+        paramName = header.slice(start, i);
+        start = end = -1;
+      } else {
+        throw new SyntaxError(`Unexpected character at index ${i}`);
+      }
+    } else {
+      //
+      // The value of a quoted-string after unescaping must conform to the
+      // token ABNF, so only token characters are valid.
+      // Ref: https://tools.ietf.org/html/rfc6455#section-9.1
+      //
+      if (isEscaping) {
+        if (tokenChars[code] !== 1) {
+          throw new SyntaxError(`Unexpected character at index ${i}`);
+        }
+        if (start === -1) start = i;
+        else if (!mustUnescape) mustUnescape = true;
+        isEscaping = false;
+      } else if (inQuotes) {
+        if (tokenChars[code] === 1) {
+          if (start === -1) start = i;
+        } else if (code === 0x22 /* '"' */ && start !== -1) {
+          inQuotes = false;
+          end = i;
+        } else if (code === 0x5c /* '\' */) {
+          isEscaping = true;
+        } else {
+          throw new SyntaxError(`Unexpected character at index ${i}`);
+        }
+      } else if (code === 0x22 && header.charCodeAt(i - 1) === 0x3d) {
+        inQuotes = true;
+      } else if (end === -1 && tokenChars[code] === 1) {
+        if (start === -1) start = i;
+      } else if (start !== -1 && (code === 0x20 || code === 0x09)) {
+        if (end === -1) end = i;
+      } else if (code === 0x3b || code === 0x2c) {
+        if (start === -1) {
+          throw new SyntaxError(`Unexpected character at index ${i}`);
+        }
+
+        if (end === -1) end = i;
+        var value = header.slice(start, end);
+        if (mustUnescape) {
+          value = value.replace(/\\/g, '');
+          mustUnescape = false;
+        }
+        push(params, paramName, value);
+        if (code === 0x2c) {
+          push(offers, extensionName, params);
+          params = {};
+          extensionName = undefined;
+        }
+
+        paramName = undefined;
+        start = end = -1;
+      } else {
+        throw new SyntaxError(`Unexpected character at index ${i}`);
+      }
+    }
+  }
+
+  if (start === -1 || inQuotes) {
+    throw new SyntaxError('Unexpected end of input');
+  }
+
+  if (end === -1) end = i;
+  const token = header.slice(start, end);
+  if (extensionName === undefined) {
+    push(offers, token, {});
+  } else {
+    if (paramName === undefined) {
+      push(params, token, true);
+    } else if (mustUnescape) {
+      push(params, paramName, token.replace(/\\/g, ''));
+    } else {
+      push(params, paramName, token);
+    }
+    push(offers, extensionName, params);
+  }
+
+  return offers;
+}
+
+/**
+ * Builds the `Sec-WebSocket-Extensions` header field value.
+ *
+ * @param {Object} extensions The map of extensions and parameters to format
+ * @return {String} A string representing the given object
+ * @public
+ */
+function format(extensions) {
+  return Object.keys(extensions)
+    .map((extension) => {
+      var configurations = extensions[extension];
+      if (!Array.isArray(configurations)) configurations = [configurations];
+      return configurations
+        .map((params) => {
+          return [extension]
+            .concat(
+              Object.keys(params).map((k) => {
+                var values = params[k];
+                if (!Array.isArray(values)) values = [values];
+                return values
+                  .map((v) => (v === true ? k : `${k}=${v}`))
+                  .join('; ');
+              })
+            )
+            .join('; ');
+        })
+        .join(', ');
+    })
+    .join(', ');
+}
+
+module.exports = { format, parse };
diff --git a/helloworld/node_modules/ws/lib/permessage-deflate.js b/helloworld/node_modules/ws/lib/permessage-deflate.js
new file mode 100755
index 0000000..9c88764
--- /dev/null
+++ b/helloworld/node_modules/ws/lib/permessage-deflate.js
@@ -0,0 +1,502 @@
+'use strict';
+
+const Limiter = require('async-limiter');
+const zlib = require('zlib');
+
+const bufferUtil = require('./buffer-util');
+const { kStatusCode, NOOP } = require('./constants');
+
+const TRAILER = Buffer.from([0x00, 0x00, 0xff, 0xff]);
+const EMPTY_BLOCK = Buffer.from([0x00]);
+
+const kPerMessageDeflate = Symbol('permessage-deflate');
+const kTotalLength = Symbol('total-length');
+const kCallback = Symbol('callback');
+const kBuffers = Symbol('buffers');
+const kError = Symbol('error');
+
+//
+// We limit zlib concurrency, which prevents severe memory fragmentation
+// as documented in https://github.com/nodejs/node/issues/8871#issuecomment-250915913
+// and https://github.com/websockets/ws/issues/1202
+//
+// Intentionally global; it's the global thread pool that's an issue.
+//
+let zlibLimiter;
+
+/**
+ * permessage-deflate implementation.
+ */
+class PerMessageDeflate {
+  /**
+   * Creates a PerMessageDeflate instance.
+   *
+   * @param {Object} options Configuration options
+   * @param {Boolean} options.serverNoContextTakeover Request/accept disabling
+   *     of server context takeover
+   * @param {Boolean} options.clientNoContextTakeover Advertise/acknowledge
+   *     disabling of client context takeover
+   * @param {(Boolean|Number)} options.serverMaxWindowBits Request/confirm the
+   *     use of a custom server window size
+   * @param {(Boolean|Number)} options.clientMaxWindowBits Advertise support
+   *     for, or request, a custom client window size
+   * @param {Object} options.zlibDeflateOptions Options to pass to zlib on deflate
+   * @param {Object} options.zlibInflateOptions Options to pass to zlib on inflate
+   * @param {Number} options.threshold Size (in bytes) below which messages
+   *     should not be compressed
+   * @param {Number} options.concurrencyLimit The number of concurrent calls to
+   *     zlib
+   * @param {Boolean} isServer Create the instance in either server or client
+   *     mode
+   * @param {Number} maxPayload The maximum allowed message length
+   */
+  constructor(options, isServer, maxPayload) {
+    this._maxPayload = maxPayload | 0;
+    this._options = options || {};
+    this._threshold =
+      this._options.threshold !== undefined ? this._options.threshold : 1024;
+    this._isServer = !!isServer;
+    this._deflate = null;
+    this._inflate = null;
+
+    this.params = null;
+
+    if (!zlibLimiter) {
+      const concurrency =
+        this._options.concurrencyLimit !== undefined
+          ? this._options.concurrencyLimit
+          : 10;
+      zlibLimiter = new Limiter({ concurrency });
+    }
+  }
+
+  /**
+   * @type {String}
+   */
+  static get extensionName() {
+    return 'permessage-deflate';
+  }
+
+  /**
+   * Create an extension negotiation offer.
+   *
+   * @return {Object} Extension parameters
+   * @public
+   */
+  offer() {
+    const params = {};
+
+    if (this._options.serverNoContextTakeover) {
+      params.server_no_context_takeover = true;
+    }
+    if (this._options.clientNoContextTakeover) {
+      params.client_no_context_takeover = true;
+    }
+    if (this._options.serverMaxWindowBits) {
+      params.server_max_window_bits = this._options.serverMaxWindowBits;
+    }
+    if (this._options.clientMaxWindowBits) {
+      params.client_max_window_bits = this._options.clientMaxWindowBits;
+    } else if (this._options.clientMaxWindowBits == null) {
+      params.client_max_window_bits = true;
+    }
+
+    return params;
+  }
+
+  /**
+   * Accept an extension negotiation offer/response.
+   *
+   * @param {Array} configurations The extension negotiation offers/reponse
+   * @return {Object} Accepted configuration
+   * @public
+   */
+  accept(configurations) {
+    configurations = this.normalizeParams(configurations);
+
+    this.params = this._isServer
+      ? this.acceptAsServer(configurations)
+      : this.acceptAsClient(configurations);
+
+    return this.params;
+  }
+
+  /**
+   * Releases all resources used by the extension.
+   *
+   * @public
+   */
+  cleanup() {
+    if (this._inflate) {
+      this._inflate.close();
+      this._inflate = null;
+    }
+
+    if (this._deflate) {
+      this._deflate.close();
+      this._deflate = null;
+    }
+  }
+
+  /**
+   *  Accept an extension negotiation offer.
+   *
+   * @param {Array} offers The extension negotiation offers
+   * @return {Object} Accepted configuration
+   * @private
+   */
+  acceptAsServer(offers) {
+    const opts = this._options;
+    const accepted = offers.find((params) => {
+      if (
+        (opts.serverNoContextTakeover === false &&
+          params.server_no_context_takeover) ||
+        (params.server_max_window_bits &&
+          (opts.serverMaxWindowBits === false ||
+            (typeof opts.serverMaxWindowBits === 'number' &&
+              opts.serverMaxWindowBits > params.server_max_window_bits))) ||
+        (typeof opts.clientMaxWindowBits === 'number' &&
+          !params.client_max_window_bits)
+      ) {
+        return false;
+      }
+
+      return true;
+    });
+
+    if (!accepted) {
+      throw new Error('None of the extension offers can be accepted');
+    }
+
+    if (opts.serverNoContextTakeover) {
+      accepted.server_no_context_takeover = true;
+    }
+    if (opts.clientNoContextTakeover) {
+      accepted.client_no_context_takeover = true;
+    }
+    if (typeof opts.serverMaxWindowBits === 'number') {
+      accepted.server_max_window_bits = opts.serverMaxWindowBits;
+    }
+    if (typeof opts.clientMaxWindowBits === 'number') {
+      accepted.client_max_window_bits = opts.clientMaxWindowBits;
+    } else if (
+      accepted.client_max_window_bits === true ||
+      opts.clientMaxWindowBits === false
+    ) {
+      delete accepted.client_max_window_bits;
+    }
+
+    return accepted;
+  }
+
+  /**
+   * Accept the extension negotiation response.
+   *
+   * @param {Array} response The extension negotiation response
+   * @return {Object} Accepted configuration
+   * @private
+   */
+  acceptAsClient(response) {
+    const params = response[0];
+
+    if (
+      this._options.clientNoContextTakeover === false &&
+      params.client_no_context_takeover
+    ) {
+      throw new Error('Unexpected parameter "client_no_context_takeover"');
+    }
+
+    if (!params.client_max_window_bits) {
+      if (typeof this._options.clientMaxWindowBits === 'number') {
+        params.client_max_window_bits = this._options.clientMaxWindowBits;
+      }
+    } else if (
+      this._options.clientMaxWindowBits === false ||
+      (typeof this._options.clientMaxWindowBits === 'number' &&
+        params.client_max_window_bits > this._options.clientMaxWindowBits)
+    ) {
+      throw new Error(
+        'Unexpected or invalid parameter "client_max_window_bits"'
+      );
+    }
+
+    return params;
+  }
+
+  /**
+   * Normalize parameters.
+   *
+   * @param {Array} configurations The extension negotiation offers/reponse
+   * @return {Array} The offers/response with normalized parameters
+   * @private
+   */
+  normalizeParams(configurations) {
+    configurations.forEach((params) => {
+      Object.keys(params).forEach((key) => {
+        var value = params[key];
+
+        if (value.length > 1) {
+          throw new Error(`Parameter "${key}" must have only a single value`);
+        }
+
+        value = value[0];
+
+        if (key === 'client_max_window_bits') {
+          if (value !== true) {
+            const num = +value;
+            if (!Number.isInteger(num) || num < 8 || num > 15) {
+              throw new TypeError(
+                `Invalid value for parameter "${key}": ${value}`
+              );
+            }
+            value = num;
+          } else if (!this._isServer) {
+            throw new TypeError(
+              `Invalid value for parameter "${key}": ${value}`
+            );
+          }
+        } else if (key === 'server_max_window_bits') {
+          const num = +value;
+          if (!Number.isInteger(num) || num < 8 || num > 15) {
+            throw new TypeError(
+              `Invalid value for parameter "${key}": ${value}`
+            );
+          }
+          value = num;
+        } else if (
+          key === 'client_no_context_takeover' ||
+          key === 'server_no_context_takeover'
+        ) {
+          if (value !== true) {
+            throw new TypeError(
+              `Invalid value for parameter "${key}": ${value}`
+            );
+          }
+        } else {
+          throw new Error(`Unknown parameter "${key}"`);
+        }
+
+        params[key] = value;
+      });
+    });
+
+    return configurations;
+  }
+
+  /**
+   * Decompress data. Concurrency limited by async-limiter.
+   *
+   * @param {Buffer} data Compressed data
+   * @param {Boolean} fin Specifies whether or not this is the last fragment
+   * @param {Function} callback Callback
+   * @public
+   */
+  decompress(data, fin, callback) {
+    zlibLimiter.push((done) => {
+      this._decompress(data, fin, (err, result) => {
+        done();
+        callback(err, result);
+      });
+    });
+  }
+
+  /**
+   * Compress data. Concurrency limited by async-limiter.
+   *
+   * @param {Buffer} data Data to compress
+   * @param {Boolean} fin Specifies whether or not this is the last fragment
+   * @param {Function} callback Callback
+   * @public
+   */
+  compress(data, fin, callback) {
+    zlibLimiter.push((done) => {
+      this._compress(data, fin, (err, result) => {
+        done();
+        callback(err, result);
+      });
+    });
+  }
+
+  /**
+   * Decompress data.
+   *
+   * @param {Buffer} data Compressed data
+   * @param {Boolean} fin Specifies whether or not this is the last fragment
+   * @param {Function} callback Callback
+   * @private
+   */
+  _decompress(data, fin, callback) {
+    const endpoint = this._isServer ? 'client' : 'server';
+
+    if (!this._inflate) {
+      const key = `${endpoint}_max_window_bits`;
+      const windowBits =
+        typeof this.params[key] !== 'number'
+          ? zlib.Z_DEFAULT_WINDOWBITS
+          : this.params[key];
+
+      this._inflate = zlib.createInflateRaw(
+        Object.assign({}, this._options.zlibInflateOptions, { windowBits })
+      );
+      this._inflate[kPerMessageDeflate] = this;
+      this._inflate[kTotalLength] = 0;
+      this._inflate[kBuffers] = [];
+      this._inflate.on('error', inflateOnError);
+      this._inflate.on('data', inflateOnData);
+    }
+
+    this._inflate[kCallback] = callback;
+
+    this._inflate.write(data);
+    if (fin) this._inflate.write(TRAILER);
+
+    this._inflate.flush(() => {
+      const err = this._inflate[kError];
+
+      if (err) {
+        this._inflate.close();
+        this._inflate = null;
+        callback(err);
+        return;
+      }
+
+      const data = bufferUtil.concat(
+        this._inflate[kBuffers],
+        this._inflate[kTotalLength]
+      );
+
+      if (fin && this.params[`${endpoint}_no_context_takeover`]) {
+        this._inflate.close();
+        this._inflate = null;
+      } else {
+        this._inflate[kTotalLength] = 0;
+        this._inflate[kBuffers] = [];
+      }
+
+      callback(null, data);
+    });
+  }
+
+  /**
+   * Compress data.
+   *
+   * @param {Buffer} data Data to compress
+   * @param {Boolean} fin Specifies whether or not this is the last fragment
+   * @param {Function} callback Callback
+   * @private
+   */
+  _compress(data, fin, callback) {
+    if (!data || data.length === 0) {
+      process.nextTick(callback, null, EMPTY_BLOCK);
+      return;
+    }
+
+    const endpoint = this._isServer ? 'server' : 'client';
+
+    if (!this._deflate) {
+      const key = `${endpoint}_max_window_bits`;
+      const windowBits =
+        typeof this.params[key] !== 'number'
+          ? zlib.Z_DEFAULT_WINDOWBITS
+          : this.params[key];
+
+      this._deflate = zlib.createDeflateRaw(
+        Object.assign({}, this._options.zlibDeflateOptions, { windowBits })
+      );
+
+      this._deflate[kTotalLength] = 0;
+      this._deflate[kBuffers] = [];
+
+      //
+      // An `'error'` event is emitted, only on Node.js < 10.0.0, if the
+      // `zlib.DeflateRaw` instance is closed while data is being processed.
+      // This can happen if `PerMessageDeflate#cleanup()` is called at the wrong
+      // time due to an abnormal WebSocket closure.
+      //
+      this._deflate.on('error', NOOP);
+      this._deflate.on('data', deflateOnData);
+    }
+
+    this._deflate.write(data);
+    this._deflate.flush(zlib.Z_SYNC_FLUSH, () => {
+      if (!this._deflate) {
+        //
+        // This `if` statement is only needed for Node.js < 10.0.0 because as of
+        // commit https://github.com/nodejs/node/commit/5e3f5164, the flush
+        // callback is no longer called if the deflate stream is closed while
+        // data is being processed.
+        //
+        return;
+      }
+
+      var data = bufferUtil.concat(
+        this._deflate[kBuffers],
+        this._deflate[kTotalLength]
+      );
+
+      if (fin) data = data.slice(0, data.length - 4);
+
+      if (fin && this.params[`${endpoint}_no_context_takeover`]) {
+        this._deflate.close();
+        this._deflate = null;
+      } else {
+        this._deflate[kTotalLength] = 0;
+        this._deflate[kBuffers] = [];
+      }
+
+      callback(null, data);
+    });
+  }
+}
+
+module.exports = PerMessageDeflate;
+
+/**
+ * The listener of the `zlib.DeflateRaw` stream `'data'` event.
+ *
+ * @param {Buffer} chunk A chunk of data
+ * @private
+ */
+function deflateOnData(chunk) {
+  this[kBuffers].push(chunk);
+  this[kTotalLength] += chunk.length;
+}
+
+/**
+ * The listener of the `zlib.InflateRaw` stream `'data'` event.
+ *
+ * @param {Buffer} chunk A chunk of data
+ * @private
+ */
+function inflateOnData(chunk) {
+  this[kTotalLength] += chunk.length;
+
+  if (
+    this[kPerMessageDeflate]._maxPayload < 1 ||
+    this[kTotalLength] <= this[kPerMessageDeflate]._maxPayload
+  ) {
+    this[kBuffers].push(chunk);
+    return;
+  }
+
+  this[kError] = new RangeError('Max payload size exceeded');
+  this[kError][kStatusCode] = 1009;
+  this.removeListener('data', inflateOnData);
+  this.reset();
+}
+
+/**
+ * The listener of the `zlib.InflateRaw` stream `'error'` event.
+ *
+ * @param {Error} err The emitted error
+ * @private
+ */
+function inflateOnError(err) {
+  //
+  // There is no need to call `Zlib#close()` as the handle is automatically
+  // closed when an error is emitted.
+  //
+  this[kPerMessageDeflate]._inflate = null;
+  err[kStatusCode] = 1007;
+  this[kCallback](err);
+}
diff --git a/helloworld/node_modules/ws/lib/receiver.js b/helloworld/node_modules/ws/lib/receiver.js
new file mode 100755
index 0000000..a2cef8c
--- /dev/null
+++ b/helloworld/node_modules/ws/lib/receiver.js
@@ -0,0 +1,515 @@
+'use strict';
+
+const stream = require('stream');
+
+const PerMessageDeflate = require('./permessage-deflate');
+const bufferUtil = require('./buffer-util');
+const validation = require('./validation');
+const constants = require('./constants');
+
+const GET_INFO = 0;
+const GET_PAYLOAD_LENGTH_16 = 1;
+const GET_PAYLOAD_LENGTH_64 = 2;
+const GET_MASK = 3;
+const GET_DATA = 4;
+const INFLATING = 5;
+
+/**
+ * HyBi Receiver implementation.
+ *
+ * @extends stream.Writable
+ */
+class Receiver extends stream.Writable {
+  /**
+   * Creates a Receiver instance.
+   *
+   * @param {String} binaryType The type for binary data
+   * @param {Object} extensions An object containing the negotiated extensions
+   * @param {Number} maxPayload The maximum allowed message length
+   */
+  constructor(binaryType, extensions, maxPayload) {
+    super();
+
+    this._binaryType = binaryType || constants.BINARY_TYPES[0];
+    this[constants.kWebSocket] = undefined;
+    this._extensions = extensions || {};
+    this._maxPayload = maxPayload | 0;
+
+    this._bufferedBytes = 0;
+    this._buffers = [];
+
+    this._compressed = false;
+    this._payloadLength = 0;
+    this._mask = undefined;
+    this._fragmented = 0;
+    this._masked = false;
+    this._fin = false;
+    this._opcode = 0;
+
+    this._totalPayloadLength = 0;
+    this._messageLength = 0;
+    this._fragments = [];
+
+    this._state = GET_INFO;
+    this._loop = false;
+  }
+
+  /**
+   * Implements `Writable.prototype._write()`.
+   *
+   * @param {Buffer} chunk The chunk of data to write
+   * @param {String} encoding The character encoding of `chunk`
+   * @param {Function} cb Callback
+   */
+  _write(chunk, encoding, cb) {
+    if (this._opcode === 0x08 && this._state == GET_INFO) return cb();
+
+    this._bufferedBytes += chunk.length;
+    this._buffers.push(chunk);
+    this.startLoop(cb);
+  }
+
+  /**
+   * Consumes `n` bytes from the buffered data.
+   *
+   * @param {Number} n The number of bytes to consume
+   * @return {Buffer} The consumed bytes
+   * @private
+   */
+  consume(n) {
+    this._bufferedBytes -= n;
+
+    if (n === this._buffers[0].length) return this._buffers.shift();
+
+    if (n < this._buffers[0].length) {
+      const buf = this._buffers[0];
+      this._buffers[0] = buf.slice(n);
+      return buf.slice(0, n);
+    }
+
+    const dst = Buffer.allocUnsafe(n);
+
+    do {
+      const buf = this._buffers[0];
+
+      if (n >= buf.length) {
+        this._buffers.shift().copy(dst, dst.length - n);
+      } else {
+        buf.copy(dst, dst.length - n, 0, n);
+        this._buffers[0] = buf.slice(n);
+      }
+
+      n -= buf.length;
+    } while (n > 0);
+
+    return dst;
+  }
+
+  /**
+   * Starts the parsing loop.
+   *
+   * @param {Function} cb Callback
+   * @private
+   */
+  startLoop(cb) {
+    var err;
+    this._loop = true;
+
+    do {
+      switch (this._state) {
+        case GET_INFO:
+          err = this.getInfo();
+          break;
+        case GET_PAYLOAD_LENGTH_16:
+          err = this.getPayloadLength16();
+          break;
+        case GET_PAYLOAD_LENGTH_64:
+          err = this.getPayloadLength64();
+          break;
+        case GET_MASK:
+          this.getMask();
+          break;
+        case GET_DATA:
+          err = this.getData(cb);
+          break;
+        default:
+          // `INFLATING`
+          this._loop = false;
+          return;
+      }
+    } while (this._loop);
+
+    cb(err);
+  }
+
+  /**
+   * Reads the first two bytes of a frame.
+   *
+   * @return {(RangeError|undefined)} A possible error
+   * @private
+   */
+  getInfo() {
+    if (this._bufferedBytes < 2) {
+      this._loop = false;
+      return;
+    }
+
+    const buf = this.consume(2);
+
+    if ((buf[0] & 0x30) !== 0x00) {
+      this._loop = false;
+      return error(RangeError, 'RSV2 and RSV3 must be clear', true, 1002);
+    }
+
+    const compressed = (buf[0] & 0x40) === 0x40;
+
+    if (compressed && !this._extensions[PerMessageDeflate.extensionName]) {
+      this._loop = false;
+      return error(RangeError, 'RSV1 must be clear', true, 1002);
+    }
+
+    this._fin = (buf[0] & 0x80) === 0x80;
+    this._opcode = buf[0] & 0x0f;
+    this._payloadLength = buf[1] & 0x7f;
+
+    if (this._opcode === 0x00) {
+      if (compressed) {
+        this._loop = false;
+        return error(RangeError, 'RSV1 must be clear', true, 1002);
+      }
+
+      if (!this._fragmented) {
+        this._loop = false;
+        return error(RangeError, 'invalid opcode 0', true, 1002);
+      }
+
+      this._opcode = this._fragmented;
+    } else if (this._opcode === 0x01 || this._opcode === 0x02) {
+      if (this._fragmented) {
+        this._loop = false;
+        return error(RangeError, `invalid opcode ${this._opcode}`, true, 1002);
+      }
+
+      this._compressed = compressed;
+    } else if (this._opcode > 0x07 && this._opcode < 0x0b) {
+      if (!this._fin) {
+        this._loop = false;
+        return error(RangeError, 'FIN must be set', true, 1002);
+      }
+
+      if (compressed) {
+        this._loop = false;
+        return error(RangeError, 'RSV1 must be clear', true, 1002);
+      }
+
+      if (this._payloadLength > 0x7d) {
+        this._loop = false;
+        return error(
+          RangeError,
+          `invalid payload length ${this._payloadLength}`,
+          true,
+          1002
+        );
+      }
+    } else {
+      this._loop = false;
+      return error(RangeError, `invalid opcode ${this._opcode}`, true, 1002);
+    }
+
+    if (!this._fin && !this._fragmented) this._fragmented = this._opcode;
+    this._masked = (buf[1] & 0x80) === 0x80;
+
+    if (this._payloadLength === 126) this._state = GET_PAYLOAD_LENGTH_16;
+    else if (this._payloadLength === 127) this._state = GET_PAYLOAD_LENGTH_64;
+    else return this.haveLength();
+  }
+
+  /**
+   * Gets extended payload length (7+16).
+   *
+   * @return {(RangeError|undefined)} A possible error
+   * @private
+   */
+  getPayloadLength16() {
+    if (this._bufferedBytes < 2) {
+      this._loop = false;
+      return;
+    }
+
+    this._payloadLength = this.consume(2).readUInt16BE(0);
+    return this.haveLength();
+  }
+
+  /**
+   * Gets extended payload length (7+64).
+   *
+   * @return {(RangeError|undefined)} A possible error
+   * @private
+   */
+  getPayloadLength64() {
+    if (this._bufferedBytes < 8) {
+      this._loop = false;
+      return;
+    }
+
+    const buf = this.consume(8);
+    const num = buf.readUInt32BE(0);
+
+    //
+    // The maximum safe integer in JavaScript is 2^53 - 1. An error is returned
+    // if payload length is greater than this number.
+    //
+    if (num > Math.pow(2, 53 - 32) - 1) {
+      this._loop = false;
+      return error(
+        RangeError,
+        'Unsupported WebSocket frame: payload length > 2^53 - 1',
+        false,
+        1009
+      );
+    }
+
+    this._payloadLength = num * Math.pow(2, 32) + buf.readUInt32BE(4);
+    return this.haveLength();
+  }
+
+  /**
+   * Payload length has been read.
+   *
+   * @return {(RangeError|undefined)} A possible error
+   * @private
+   */
+  haveLength() {
+    if (this._payloadLength && this._opcode < 0x08) {
+      this._totalPayloadLength += this._payloadLength;
+      if (this._totalPayloadLength > this._maxPayload && this._maxPayload > 0) {
+        this._loop = false;
+        return error(RangeError, 'Max payload size exceeded', false, 1009);
+      }
+    }
+
+    if (this._masked) this._state = GET_MASK;
+    else this._state = GET_DATA;
+  }
+
+  /**
+   * Reads mask bytes.
+   *
+   * @private
+   */
+  getMask() {
+    if (this._bufferedBytes < 4) {
+      this._loop = false;
+      return;
+    }
+
+    this._mask = this.consume(4);
+    this._state = GET_DATA;
+  }
+
+  /**
+   * Reads data bytes.
+   *
+   * @param {Function} cb Callback
+   * @return {(Error|RangeError|undefined)} A possible error
+   * @private
+   */
+  getData(cb) {
+    var data = constants.EMPTY_BUFFER;
+
+    if (this._payloadLength) {
+      if (this._bufferedBytes < this._payloadLength) {
+        this._loop = false;
+        return;
+      }
+
+      data = this.consume(this._payloadLength);
+      if (this._masked) bufferUtil.unmask(data, this._mask);
+    }
+
+    if (this._opcode > 0x07) return this.controlMessage(data);
+
+    if (this._compressed) {
+      this._state = INFLATING;
+      this.decompress(data, cb);
+      return;
+    }
+
+    if (data.length) {
+      //
+      // This message is not compressed so its lenght is the sum of the payload
+      // length of all fragments.
+      //
+      this._messageLength = this._totalPayloadLength;
+      this._fragments.push(data);
+    }
+
+    return this.dataMessage();
+  }
+
+  /**
+   * Decompresses data.
+   *
+   * @param {Buffer} data Compressed data
+   * @param {Function} cb Callback
+   * @private
+   */
+  decompress(data, cb) {
+    const perMessageDeflate = this._extensions[PerMessageDeflate.extensionName];
+
+    perMessageDeflate.decompress(data, this._fin, (err, buf) => {
+      if (err) return cb(err);
+
+      if (buf.length) {
+        this._messageLength += buf.length;
+        if (this._messageLength > this._maxPayload && this._maxPayload > 0) {
+          return cb(
+            error(RangeError, 'Max payload size exceeded', false, 1009)
+          );
+        }
+
+        this._fragments.push(buf);
+      }
+
+      const er = this.dataMessage();
+      if (er) return cb(er);
+
+      this.startLoop(cb);
+    });
+  }
+
+  /**
+   * Handles a data message.
+   *
+   * @return {(Error|undefined)} A possible error
+   * @private
+   */
+  dataMessage() {
+    if (this._fin) {
+      const messageLength = this._messageLength;
+      const fragments = this._fragments;
+
+      this._totalPayloadLength = 0;
+      this._messageLength = 0;
+      this._fragmented = 0;
+      this._fragments = [];
+
+      if (this._opcode === 2) {
+        var data;
+
+        if (this._binaryType === 'nodebuffer') {
+          data = toBuffer(fragments, messageLength);
+        } else if (this._binaryType === 'arraybuffer') {
+          data = toArrayBuffer(toBuffer(fragments, messageLength));
+        } else {
+          data = fragments;
+        }
+
+        this.emit('message', data);
+      } else {
+        const buf = toBuffer(fragments, messageLength);
+
+        if (!validation.isValidUTF8(buf)) {
+          this._loop = false;
+          return error(Error, 'invalid UTF-8 sequence', true, 1007);
+        }
+
+        this.emit('message', buf.toString());
+      }
+    }
+
+    this._state = GET_INFO;
+  }
+
+  /**
+   * Handles a control message.
+   *
+   * @param {Buffer} data Data to handle
+   * @return {(Error|RangeError|undefined)} A possible error
+   * @private
+   */
+  controlMessage(data) {
+    if (this._opcode === 0x08) {
+      this._loop = false;
+
+      if (data.length === 0) {
+        this.emit('conclude', 1005, '');
+        this.end();
+      } else if (data.length === 1) {
+        return error(RangeError, 'invalid payload length 1', true, 1002);
+      } else {
+        const code = data.readUInt16BE(0);
+
+        if (!validation.isValidStatusCode(code)) {
+          return error(RangeError, `invalid status code ${code}`, true, 1002);
+        }
+
+        const buf = data.slice(2);
+
+        if (!validation.isValidUTF8(buf)) {
+          return error(Error, 'invalid UTF-8 sequence', true, 1007);
+        }
+
+        this.emit('conclude', code, buf.toString());
+        this.end();
+      }
+    } else if (this._opcode === 0x09) {
+      this.emit('ping', data);
+    } else {
+      this.emit('pong', data);
+    }
+
+    this._state = GET_INFO;
+  }
+}
+
+module.exports = Receiver;
+
+/**
+ * Builds an error object.
+ *
+ * @param {(Error|RangeError)} ErrorCtor The error constructor
+ * @param {String} message The error message
+ * @param {Boolean} prefix Specifies whether or not to add a default prefix to
+ *     `message`
+ * @param {Number} statusCode The status code
+ * @return {(Error|RangeError)} The error
+ * @private
+ */
+function error(ErrorCtor, message, prefix, statusCode) {
+  const err = new ErrorCtor(
+    prefix ? `Invalid WebSocket frame: ${message}` : message
+  );
+
+  Error.captureStackTrace(err, error);
+  err[constants.kStatusCode] = statusCode;
+  return err;
+}
+
+/**
+ * Makes a buffer from a list of fragments.
+ *
+ * @param {Buffer[]} fragments The list of fragments composing the message
+ * @param {Number} messageLength The length of the message
+ * @return {Buffer}
+ * @private
+ */
+function toBuffer(fragments, messageLength) {
+  if (fragments.length === 1) return fragments[0];
+  if (fragments.length > 1) return bufferUtil.concat(fragments, messageLength);
+  return constants.EMPTY_BUFFER;
+}
+
+/**
+ * Converts a buffer to an `ArrayBuffer`.
+ *
+ * @param {Buffer} buf The buffer to convert
+ * @return {ArrayBuffer} Converted buffer
+ */
+function toArrayBuffer(buf) {
+  if (buf.byteLength === buf.buffer.byteLength) {
+    return buf.buffer;
+  }
+
+  return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
+}
diff --git a/helloworld/node_modules/ws/lib/sender.js b/helloworld/node_modules/ws/lib/sender.js
new file mode 100755
index 0000000..3ac8bf8
--- /dev/null
+++ b/helloworld/node_modules/ws/lib/sender.js
@@ -0,0 +1,416 @@
+'use strict';
+
+const crypto = require('crypto');
+
+const PerMessageDeflate = require('./permessage-deflate');
+const bufferUtil = require('./buffer-util');
+const validation = require('./validation');
+const constants = require('./constants');
+
+/**
+ * HyBi Sender implementation.
+ */
+class Sender {
+  /**
+   * Creates a Sender instance.
+   *
+   * @param {net.Socket} socket The connection socket
+   * @param {Object} extensions An object containing the negotiated extensions
+   */
+  constructor(socket, extensions) {
+    this._extensions = extensions || {};
+    this._socket = socket;
+
+    this._firstFragment = true;
+    this._compress = false;
+
+    this._bufferedBytes = 0;
+    this._deflating = false;
+    this._queue = [];
+  }
+
+  /**
+   * Frames a piece of data according to the HyBi WebSocket protocol.
+   *
+   * @param {Buffer} data The data to frame
+   * @param {Object} options Options object
+   * @param {Number} options.opcode The opcode
+   * @param {Boolean} options.readOnly Specifies whether `data` can be modified
+   * @param {Boolean} options.fin Specifies whether or not to set the FIN bit
+   * @param {Boolean} options.mask Specifies whether or not to mask `data`
+   * @param {Boolean} options.rsv1 Specifies whether or not to set the RSV1 bit
+   * @return {Buffer[]} The framed data as a list of `Buffer` instances
+   * @public
+   */
+  static frame(data, options) {
+    const merge = data.length < 1024 || (options.mask && options.readOnly);
+    var offset = options.mask ? 6 : 2;
+    var payloadLength = data.length;
+
+    if (data.length >= 65536) {
+      offset += 8;
+      payloadLength = 127;
+    } else if (data.length > 125) {
+      offset += 2;
+      payloadLength = 126;
+    }
+
+    const target = Buffer.allocUnsafe(merge ? data.length + offset : offset);
+
+    target[0] = options.fin ? options.opcode | 0x80 : options.opcode;
+    if (options.rsv1) target[0] |= 0x40;
+
+    if (payloadLength === 126) {
+      target.writeUInt16BE(data.length, 2);
+    } else if (payloadLength === 127) {
+      target.writeUInt32BE(0, 2);
+      target.writeUInt32BE(data.length, 6);
+    }
+
+    if (!options.mask) {
+      target[1] = payloadLength;
+      if (merge) {
+        data.copy(target, offset);
+        return [target];
+      }
+
+      return [target, data];
+    }
+
+    const mask = crypto.randomBytes(4);
+
+    target[1] = payloadLength | 0x80;
+    target[offset - 4] = mask[0];
+    target[offset - 3] = mask[1];
+    target[offset - 2] = mask[2];
+    target[offset - 1] = mask[3];
+
+    if (merge) {
+      bufferUtil.mask(data, mask, target, offset, data.length);
+      return [target];
+    }
+
+    bufferUtil.mask(data, mask, data, 0, data.length);
+    return [target, data];
+  }
+
+  /**
+   * Sends a close message to the other peer.
+   *
+   * @param {(Number|undefined)} code The status code component of the body
+   * @param {String} data The message component of the body
+   * @param {Boolean} mask Specifies whether or not to mask the message
+   * @param {Function} cb Callback
+   * @public
+   */
+  close(code, data, mask, cb) {
+    var buf;
+
+    if (code === undefined) {
+      buf = constants.EMPTY_BUFFER;
+    } else if (
+      typeof code !== 'number' ||
+      !validation.isValidStatusCode(code)
+    ) {
+      throw new TypeError('First argument must be a valid error code number');
+    } else if (data === undefined || data === '') {
+      buf = Buffer.allocUnsafe(2);
+      buf.writeUInt16BE(code, 0);
+    } else {
+      buf = Buffer.allocUnsafe(2 + Buffer.byteLength(data));
+      buf.writeUInt16BE(code, 0);
+      buf.write(data, 2);
+    }
+
+    if (this._deflating) {
+      this.enqueue([this.doClose, buf, mask, cb]);
+    } else {
+      this.doClose(buf, mask, cb);
+    }
+  }
+
+  /**
+   * Frames and sends a close message.
+   *
+   * @param {Buffer} data The message to send
+   * @param {Boolean} mask Specifies whether or not to mask `data`
+   * @param {Function} cb Callback
+   * @private
+   */
+  doClose(data, mask, cb) {
+    this.sendFrame(
+      Sender.frame(data, {
+        fin: true,
+        rsv1: false,
+        opcode: 0x08,
+        mask,
+        readOnly: false
+      }),
+      cb
+    );
+  }
+
+  /**
+   * Sends a ping message to the other peer.
+   *
+   * @param {*} data The message to send
+   * @param {Boolean} mask Specifies whether or not to mask `data`
+   * @param {Function} cb Callback
+   * @public
+   */
+  ping(data, mask, cb) {
+    var readOnly = true;
+
+    if (!Buffer.isBuffer(data)) {
+      if (data instanceof ArrayBuffer) {
+        data = Buffer.from(data);
+      } else if (ArrayBuffer.isView(data)) {
+        data = viewToBuffer(data);
+      } else {
+        data = Buffer.from(data);
+        readOnly = false;
+      }
+    }
+
+    if (this._deflating) {
+      this.enqueue([this.doPing, data, mask, readOnly, cb]);
+    } else {
+      this.doPing(data, mask, readOnly, cb);
+    }
+  }
+
+  /**
+   * Frames and sends a ping message.
+   *
+   * @param {*} data The message to send
+   * @param {Boolean} mask Specifies whether or not to mask `data`
+   * @param {Boolean} readOnly Specifies whether `data` can be modified
+   * @param {Function} cb Callback
+   * @private
+   */
+  doPing(data, mask, readOnly, cb) {
+    this.sendFrame(
+      Sender.frame(data, {
+        fin: true,
+        rsv1: false,
+        opcode: 0x09,
+        mask,
+        readOnly
+      }),
+      cb
+    );
+  }
+
+  /**
+   * Sends a pong message to the other peer.
+   *
+   * @param {*} data The message to send
+   * @param {Boolean} mask Specifies whether or not to mask `data`
+   * @param {Function} cb Callback
+   * @public
+   */
+  pong(data, mask, cb) {
+    var readOnly = true;
+
+    if (!Buffer.isBuffer(data)) {
+      if (data instanceof ArrayBuffer) {
+        data = Buffer.from(data);
+      } else if (ArrayBuffer.isView(data)) {
+        data = viewToBuffer(data);
+      } else {
+        data = Buffer.from(data);
+        readOnly = false;
+      }
+    }
+
+    if (this._deflating) {
+      this.enqueue([this.doPong, data, mask, readOnly, cb]);
+    } else {
+      this.doPong(data, mask, readOnly, cb);
+    }
+  }
+
+  /**
+   * Frames and sends a pong message.
+   *
+   * @param {*} data The message to send
+   * @param {Boolean} mask Specifies whether or not to mask `data`
+   * @param {Boolean} readOnly Specifies whether `data` can be modified
+   * @param {Function} cb Callback
+   * @private
+   */
+  doPong(data, mask, readOnly, cb) {
+    this.sendFrame(
+      Sender.frame(data, {
+        fin: true,
+        rsv1: false,
+        opcode: 0x0a,
+        mask,
+        readOnly
+      }),
+      cb
+    );
+  }
+
+  /**
+   * Sends a data message to the other peer.
+   *
+   * @param {*} data The message to send
+   * @param {Object} options Options object
+   * @param {Boolean} options.compress Specifies whether or not to compress `data`
+   * @param {Boolean} options.binary Specifies whether `data` is binary or text
+   * @param {Boolean} options.fin Specifies whether the fragment is the last one
+   * @param {Boolean} options.mask Specifies whether or not to mask `data`
+   * @param {Function} cb Callback
+   * @public
+   */
+  send(data, options, cb) {
+    var opcode = options.binary ? 2 : 1;
+    var rsv1 = options.compress;
+    var readOnly = true;
+
+    if (!Buffer.isBuffer(data)) {
+      if (data instanceof ArrayBuffer) {
+        data = Buffer.from(data);
+      } else if (ArrayBuffer.isView(data)) {
+        data = viewToBuffer(data);
+      } else {
+        data = Buffer.from(data);
+        readOnly = false;
+      }
+    }
+
+    const perMessageDeflate = this._extensions[PerMessageDeflate.extensionName];
+
+    if (this._firstFragment) {
+      this._firstFragment = false;
+      if (rsv1 && perMessageDeflate) {
+        rsv1 = data.length >= perMessageDeflate._threshold;
+      }
+      this._compress = rsv1;
+    } else {
+      rsv1 = false;
+      opcode = 0;
+    }
+
+    if (options.fin) this._firstFragment = true;
+
+    if (perMessageDeflate) {
+      const opts = {
+        fin: options.fin,
+        rsv1,
+        opcode,
+        mask: options.mask,
+        readOnly
+      };
+
+      if (this._deflating) {
+        this.enqueue([this.dispatch, data, this._compress, opts, cb]);
+      } else {
+        this.dispatch(data, this._compress, opts, cb);
+      }
+    } else {
+      this.sendFrame(
+        Sender.frame(data, {
+          fin: options.fin,
+          rsv1: false,
+          opcode,
+          mask: options.mask,
+          readOnly
+        }),
+        cb
+      );
+    }
+  }
+
+  /**
+   * Dispatches a data message.
+   *
+   * @param {Buffer} data The message to send
+   * @param {Boolean} compress Specifies whether or not to compress `data`
+   * @param {Object} options Options object
+   * @param {Number} options.opcode The opcode
+   * @param {Boolean} options.readOnly Specifies whether `data` can be modified
+   * @param {Boolean} options.fin Specifies whether or not to set the FIN bit
+   * @param {Boolean} options.mask Specifies whether or not to mask `data`
+   * @param {Boolean} options.rsv1 Specifies whether or not to set the RSV1 bit
+   * @param {Function} cb Callback
+   * @private
+   */
+  dispatch(data, compress, options, cb) {
+    if (!compress) {
+      this.sendFrame(Sender.frame(data, options), cb);
+      return;
+    }
+
+    const perMessageDeflate = this._extensions[PerMessageDeflate.extensionName];
+
+    this._deflating = true;
+    perMessageDeflate.compress(data, options.fin, (_, buf) => {
+      this._deflating = false;
+      options.readOnly = false;
+      this.sendFrame(Sender.frame(buf, options), cb);
+      this.dequeue();
+    });
+  }
+
+  /**
+   * Executes queued send operations.
+   *
+   * @private
+   */
+  dequeue() {
+    while (!this._deflating && this._queue.length) {
+      const params = this._queue.shift();
+
+      this._bufferedBytes -= params[1].length;
+      params[0].apply(this, params.slice(1));
+    }
+  }
+
+  /**
+   * Enqueues a send operation.
+   *
+   * @param {Array} params Send operation parameters.
+   * @private
+   */
+  enqueue(params) {
+    this._bufferedBytes += params[1].length;
+    this._queue.push(params);
+  }
+
+  /**
+   * Sends a frame.
+   *
+   * @param {Buffer[]} list The frame to send
+   * @param {Function} cb Callback
+   * @private
+   */
+  sendFrame(list, cb) {
+    if (list.length === 2) {
+      this._socket.write(list[0]);
+      this._socket.write(list[1], cb);
+    } else {
+      this._socket.write(list[0], cb);
+    }
+  }
+}
+
+module.exports = Sender;
+
+/**
+ * Converts an `ArrayBuffer` view into a buffer.
+ *
+ * @param {(DataView|TypedArray)} view The view to convert
+ * @return {Buffer} Converted view
+ * @private
+ */
+function viewToBuffer(view) {
+  const buf = Buffer.from(view.buffer);
+
+  if (view.byteLength !== view.buffer.byteLength) {
+    return buf.slice(view.byteOffset, view.byteOffset + view.byteLength);
+  }
+
+  return buf;
+}
diff --git a/helloworld/node_modules/ws/lib/validation.js b/helloworld/node_modules/ws/lib/validation.js
new file mode 100755
index 0000000..479a7db
--- /dev/null
+++ b/helloworld/node_modules/ws/lib/validation.js
@@ -0,0 +1,30 @@
+'use strict';
+
+try {
+  const isValidUTF8 = require('utf-8-validate');
+
+  exports.isValidUTF8 =
+    typeof isValidUTF8 === 'object'
+      ? isValidUTF8.Validation.isValidUTF8 // utf-8-validate@<3.0.0
+      : isValidUTF8;
+} catch (e) /* istanbul ignore next */ {
+  exports.isValidUTF8 = () => true;
+}
+
+/**
+ * Checks if a status code is allowed in a close frame.
+ *
+ * @param {Number} code The status code
+ * @return {Boolean} `true` if the status code is valid, else `false`
+ * @public
+ */
+exports.isValidStatusCode = (code) => {
+  return (
+    (code >= 1000 &&
+      code <= 1013 &&
+      code !== 1004 &&
+      code !== 1005 &&
+      code !== 1006) ||
+    (code >= 3000 && code <= 4999)
+  );
+};
diff --git a/helloworld/node_modules/ws/lib/websocket-server.js b/helloworld/node_modules/ws/lib/websocket-server.js
new file mode 100755
index 0000000..deca408
--- /dev/null
+++ b/helloworld/node_modules/ws/lib/websocket-server.js
@@ -0,0 +1,389 @@
+'use strict';
+
+const EventEmitter = require('events');
+const crypto = require('crypto');
+const http = require('http');
+
+const PerMessageDeflate = require('./permessage-deflate');
+const extension = require('./extension');
+const constants = require('./constants');
+const WebSocket = require('./websocket');
+
+/**
+ * Class representing a WebSocket server.
+ *
+ * @extends EventEmitter
+ */
+class WebSocketServer extends EventEmitter {
+  /**
+   * Create a `WebSocketServer` instance.
+   *
+   * @param {Object} options Configuration options
+   * @param {String} options.host The hostname where to bind the server
+   * @param {Number} options.port The port where to bind the server
+   * @param {http.Server} options.server A pre-created HTTP/S server to use
+   * @param {Function} options.verifyClient An hook to reject connections
+   * @param {Function} options.handleProtocols An hook to handle protocols
+   * @param {String} options.path Accept only connections matching this path
+   * @param {Boolean} options.noServer Enable no server mode
+   * @param {Boolean} options.clientTracking Specifies whether or not to track clients
+   * @param {(Boolean|Object)} options.perMessageDeflate Enable/disable permessage-deflate
+   * @param {Number} options.maxPayload The maximum allowed message size
+   * @param {Function} callback A listener for the `listening` event
+   */
+  constructor(options, callback) {
+    super();
+
+    options = Object.assign(
+      {
+        maxPayload: 100 * 1024 * 1024,
+        perMessageDeflate: false,
+        handleProtocols: null,
+        clientTracking: true,
+        verifyClient: null,
+        noServer: false,
+        backlog: null, // use default (511 as implemented in net.js)
+        server: null,
+        host: null,
+        path: null,
+        port: null
+      },
+      options
+    );
+
+    if (options.port == null && !options.server && !options.noServer) {
+      throw new TypeError(
+        'One of the "port", "server", or "noServer" options must be specified'
+      );
+    }
+
+    if (options.port != null) {
+      this._server = http.createServer((req, res) => {
+        const body = http.STATUS_CODES[426];
+
+        res.writeHead(426, {
+          'Content-Length': body.length,
+          'Content-Type': 'text/plain'
+        });
+        res.end(body);
+      });
+      this._server.listen(
+        options.port,
+        options.host,
+        options.backlog,
+        callback
+      );
+    } else if (options.server) {
+      this._server = options.server;
+    }
+
+    if (this._server) {
+      this._removeListeners = addListeners(this._server, {
+        listening: this.emit.bind(this, 'listening'),
+        error: this.emit.bind(this, 'error'),
+        upgrade: (req, socket, head) => {
+          this.handleUpgrade(req, socket, head, (ws) => {
+            this.emit('connection', ws, req);
+          });
+        }
+      });
+    }
+
+    if (options.perMessageDeflate === true) options.perMessageDeflate = {};
+    if (options.clientTracking) this.clients = new Set();
+    this.options = options;
+  }
+
+  /**
+   * Returns the bound address, the address family name, and port of the server
+   * as reported by the operating system if listening on an IP socket.
+   * If the server is listening on a pipe or UNIX domain socket, the name is
+   * returned as a string.
+   *
+   * @return {(Object|String|null)} The address of the server
+   * @public
+   */
+  address() {
+    if (this.options.noServer) {
+      throw new Error('The server is operating in "noServer" mode');
+    }
+
+    if (!this._server) return null;
+    return this._server.address();
+  }
+
+  /**
+   * Close the server.
+   *
+   * @param {Function} cb Callback
+   * @public
+   */
+  close(cb) {
+    if (cb) this.once('close', cb);
+
+    //
+    // Terminate all associated clients.
+    //
+    if (this.clients) {
+      for (const client of this.clients) client.terminate();
+    }
+
+    const server = this._server;
+
+    if (server) {
+      this._removeListeners();
+      this._removeListeners = this._server = null;
+
+      //
+      // Close the http server if it was internally created.
+      //
+      if (this.options.port != null) {
+        server.close(() => this.emit('close'));
+        return;
+      }
+    }
+
+    process.nextTick(emitClose, this);
+  }
+
+  /**
+   * See if a given request should be handled by this server instance.
+   *
+   * @param {http.IncomingMessage} req Request object to inspect
+   * @return {Boolean} `true` if the request is valid, else `false`
+   * @public
+   */
+  shouldHandle(req) {
+    if (this.options.path) {
+      const index = req.url.indexOf('?');
+      const pathname = index !== -1 ? req.url.slice(0, index) : req.url;
+
+      if (pathname !== this.options.path) return false;
+    }
+
+    return true;
+  }
+
+  /**
+   * Handle a HTTP Upgrade request.
+   *
+   * @param {http.IncomingMessage} req The request object
+   * @param {net.Socket} socket The network socket between the server and client
+   * @param {Buffer} head The first packet of the upgraded stream
+   * @param {Function} cb Callback
+   * @public
+   */
+  handleUpgrade(req, socket, head, cb) {
+    socket.on('error', socketOnError);
+
+    const version = +req.headers['sec-websocket-version'];
+    const extensions = {};
+
+    if (
+      req.method !== 'GET' ||
+      req.headers.upgrade.toLowerCase() !== 'websocket' ||
+      !req.headers['sec-websocket-key'] ||
+      (version !== 8 && version !== 13) ||
+      !this.shouldHandle(req)
+    ) {
+      return abortHandshake(socket, 400);
+    }
+
+    if (this.options.perMessageDeflate) {
+      const perMessageDeflate = new PerMessageDeflate(
+        this.options.perMessageDeflate,
+        true,
+        this.options.maxPayload
+      );
+
+      try {
+        const offers = extension.parse(req.headers['sec-websocket-extensions']);
+
+        if (offers[PerMessageDeflate.extensionName]) {
+          perMessageDeflate.accept(offers[PerMessageDeflate.extensionName]);
+          extensions[PerMessageDeflate.extensionName] = perMessageDeflate;
+        }
+      } catch (err) {
+        return abortHandshake(socket, 400);
+      }
+    }
+
+    //
+    // Optionally call external client verification handler.
+    //
+    if (this.options.verifyClient) {
+      const info = {
+        origin:
+          req.headers[`${version === 8 ? 'sec-websocket-origin' : 'origin'}`],
+        secure: !!(req.connection.authorized || req.connection.encrypted),
+        req
+      };
+
+      if (this.options.verifyClient.length === 2) {
+        this.options.verifyClient(info, (verified, code, message, headers) => {
+          if (!verified) {
+            return abortHandshake(socket, code || 401, message, headers);
+          }
+
+          this.completeUpgrade(extensions, req, socket, head, cb);
+        });
+        return;
+      }
+
+      if (!this.options.verifyClient(info)) return abortHandshake(socket, 401);
+    }
+
+    this.completeUpgrade(extensions, req, socket, head, cb);
+  }
+
+  /**
+   * Upgrade the connection to WebSocket.
+   *
+   * @param {Object} extensions The accepted extensions
+   * @param {http.IncomingMessage} req The request object
+   * @param {net.Socket} socket The network socket between the server and client
+   * @param {Buffer} head The first packet of the upgraded stream
+   * @param {Function} cb Callback
+   * @private
+   */
+  completeUpgrade(extensions, req, socket, head, cb) {
+    //
+    // Destroy the socket if the client has already sent a FIN packet.
+    //
+    if (!socket.readable || !socket.writable) return socket.destroy();
+
+    const key = crypto
+      .createHash('sha1')
+      .update(req.headers['sec-websocket-key'] + constants.GUID, 'binary')
+      .digest('base64');
+
+    const headers = [
+      'HTTP/1.1 101 Switching Protocols',
+      'Upgrade: websocket',
+      'Connection: Upgrade',
+      `Sec-WebSocket-Accept: ${key}`
+    ];
+
+    const ws = new WebSocket(null);
+    var protocol = req.headers['sec-websocket-protocol'];
+
+    if (protocol) {
+      protocol = protocol.trim().split(/ *, */);
+
+      //
+      // Optionally call external protocol selection handler.
+      //
+      if (this.options.handleProtocols) {
+        protocol = this.options.handleProtocols(protocol, req);
+      } else {
+        protocol = protocol[0];
+      }
+
+      if (protocol) {
+        headers.push(`Sec-WebSocket-Protocol: ${protocol}`);
+        ws.protocol = protocol;
+      }
+    }
+
+    if (extensions[PerMessageDeflate.extensionName]) {
+      const params = extensions[PerMessageDeflate.extensionName].params;
+      const value = extension.format({
+        [PerMessageDeflate.extensionName]: [params]
+      });
+      headers.push(`Sec-WebSocket-Extensions: ${value}`);
+      ws._extensions = extensions;
+    }
+
+    //
+    // Allow external modification/inspection of handshake headers.
+    //
+    this.emit('headers', headers, req);
+
+    socket.write(headers.concat('\r\n').join('\r\n'));
+    socket.removeListener('error', socketOnError);
+
+    ws.setSocket(socket, head, this.options.maxPayload);
+
+    if (this.clients) {
+      this.clients.add(ws);
+      ws.on('close', () => this.clients.delete(ws));
+    }
+
+    cb(ws);
+  }
+}
+
+module.exports = WebSocketServer;
+
+/**
+ * Add event listeners on an `EventEmitter` using a map of <event, listener>
+ * pairs.
+ *
+ * @param {EventEmitter} server The event emitter
+ * @param {Object.<String, Function>} map The listeners to add
+ * @return {Function} A function that will remove the added listeners when called
+ * @private
+ */
+function addListeners(server, map) {
+  for (const event of Object.keys(map)) server.on(event, map[event]);
+
+  return function removeListeners() {
+    for (const event of Object.keys(map)) {
+      server.removeListener(event, map[event]);
+    }
+  };
+}
+
+/**
+ * Emit a `'close'` event on an `EventEmitter`.
+ *
+ * @param {EventEmitter} server The event emitter
+ * @private
+ */
+function emitClose(server) {
+  server.emit('close');
+}
+
+/**
+ * Handle premature socket errors.
+ *
+ * @private
+ */
+function socketOnError() {
+  this.destroy();
+}
+
+/**
+ * Close the connection when preconditions are not fulfilled.
+ *
+ * @param {net.Socket} socket The socket of the upgrade request
+ * @param {Number} code The HTTP response status code
+ * @param {String} [message] The HTTP response body
+ * @param {Object} [headers] Additional HTTP response headers
+ * @private
+ */
+function abortHandshake(socket, code, message, headers) {
+  if (socket.writable) {
+    message = message || http.STATUS_CODES[code];
+    headers = Object.assign(
+      {
+        Connection: 'close',
+        'Content-type': 'text/html',
+        'Content-Length': Buffer.byteLength(message)
+      },
+      headers
+    );
+
+    socket.write(
+      `HTTP/1.1 ${code} ${http.STATUS_CODES[code]}\r\n` +
+        Object.keys(headers)
+          .map((h) => `${h}: ${headers[h]}`)
+          .join('\r\n') +
+        '\r\n\r\n' +
+        message
+    );
+  }
+
+  socket.removeListener('error', socketOnError);
+  socket.destroy();
+}
diff --git a/helloworld/node_modules/ws/lib/websocket.js b/helloworld/node_modules/ws/lib/websocket.js
new file mode 100755
index 0000000..1d7c446
--- /dev/null
+++ b/helloworld/node_modules/ws/lib/websocket.js
@@ -0,0 +1,852 @@
+'use strict';
+
+const EventEmitter = require('events');
+const crypto = require('crypto');
+const https = require('https');
+const http = require('http');
+const net = require('net');
+const tls = require('tls');
+const url = require('url');
+
+const PerMessageDeflate = require('./permessage-deflate');
+const EventTarget = require('./event-target');
+const extension = require('./extension');
+const constants = require('./constants');
+const Receiver = require('./receiver');
+const Sender = require('./sender');
+
+const readyStates = ['CONNECTING', 'OPEN', 'CLOSING', 'CLOSED'];
+const kWebSocket = constants.kWebSocket;
+const protocolVersions = [8, 13];
+const closeTimeout = 30 * 1000; // Allow 30 seconds to terminate the connection cleanly.
+
+/**
+ * Class representing a WebSocket.
+ *
+ * @extends EventEmitter
+ */
+class WebSocket extends EventEmitter {
+  /**
+   * Create a new `WebSocket`.
+   *
+   * @param {(String|url.Url|url.URL)} address The URL to which to connect
+   * @param {(String|String[])} protocols The subprotocols
+   * @param {Object} options Connection options
+   */
+  constructor(address, protocols, options) {
+    super();
+
+    this.readyState = WebSocket.CONNECTING;
+    this.protocol = '';
+
+    this._binaryType = constants.BINARY_TYPES[0];
+    this._closeFrameReceived = false;
+    this._closeFrameSent = false;
+    this._closeMessage = '';
+    this._closeTimer = null;
+    this._closeCode = 1006;
+    this._extensions = {};
+    this._isServer = true;
+    this._receiver = null;
+    this._sender = null;
+    this._socket = null;
+
+    if (address !== null) {
+      if (Array.isArray(protocols)) {
+        protocols = protocols.join(', ');
+      } else if (typeof protocols === 'object' && protocols !== null) {
+        options = protocols;
+        protocols = undefined;
+      }
+
+      initAsClient.call(this, address, protocols, options);
+    }
+  }
+
+  get CONNECTING() {
+    return WebSocket.CONNECTING;
+  }
+  get CLOSING() {
+    return WebSocket.CLOSING;
+  }
+  get CLOSED() {
+    return WebSocket.CLOSED;
+  }
+  get OPEN() {
+    return WebSocket.OPEN;
+  }
+
+  /**
+   * This deviates from the WHATWG interface since ws doesn't support the required
+   * default "blob" type (instead we define a custom "nodebuffer" type).
+   *
+   * @type {String}
+   */
+  get binaryType() {
+    return this._binaryType;
+  }
+
+  set binaryType(type) {
+    if (!constants.BINARY_TYPES.includes(type)) return;
+
+    this._binaryType = type;
+
+    //
+    // Allow to change `binaryType` on the fly.
+    //
+    if (this._receiver) this._receiver._binaryType = type;
+  }
+
+  /**
+   * @type {Number}
+   */
+  get bufferedAmount() {
+    if (!this._socket) return 0;
+
+    //
+    // `socket.bufferSize` is `undefined` if the socket is closed.
+    //
+    return (this._socket.bufferSize || 0) + this._sender._bufferedBytes;
+  }
+
+  /**
+   * @type {String}
+   */
+  get extensions() {
+    return Object.keys(this._extensions).join();
+  }
+
+  /**
+   * Set up the socket and the internal resources.
+   *
+   * @param {net.Socket} socket The network socket between the server and client
+   * @param {Buffer} head The first packet of the upgraded stream
+   * @param {Number} maxPayload The maximum allowed message size
+   * @private
+   */
+  setSocket(socket, head, maxPayload) {
+    const receiver = new Receiver(
+      this._binaryType,
+      this._extensions,
+      maxPayload
+    );
+
+    this._sender = new Sender(socket, this._extensions);
+    this._receiver = receiver;
+    this._socket = socket;
+
+    receiver[kWebSocket] = this;
+    socket[kWebSocket] = this;
+
+    receiver.on('conclude', receiverOnConclude);
+    receiver.on('drain', receiverOnDrain);
+    receiver.on('error', receiverOnError);
+    receiver.on('message', receiverOnMessage);
+    receiver.on('ping', receiverOnPing);
+    receiver.on('pong', receiverOnPong);
+
+    socket.setTimeout(0);
+    socket.setNoDelay();
+
+    if (head.length > 0) socket.unshift(head);
+
+    socket.on('close', socketOnClose);
+    socket.on('data', socketOnData);
+    socket.on('end', socketOnEnd);
+    socket.on('error', socketOnError);
+
+    this.readyState = WebSocket.OPEN;
+    this.emit('open');
+  }
+
+  /**
+   * Emit the `'close'` event.
+   *
+   * @private
+   */
+  emitClose() {
+    this.readyState = WebSocket.CLOSED;
+
+    if (!this._socket) {
+      this.emit('close', this._closeCode, this._closeMessage);
+      return;
+    }
+
+    if (this._extensions[PerMessageDeflate.extensionName]) {
+      this._extensions[PerMessageDeflate.extensionName].cleanup();
+    }
+
+    this._receiver.removeAllListeners();
+    this.emit('close', this._closeCode, this._closeMessage);
+  }
+
+  /**
+   * Start a closing handshake.
+   *
+   *          +----------+   +-----------+   +----------+
+   *     - - -|ws.close()|-->|close frame|-->|ws.close()|- - -
+   *    |     +----------+   +-----------+   +----------+     |
+   *          +----------+   +-----------+         |
+   * CLOSING  |ws.close()|<--|close frame|<--+-----+       CLOSING
+   *          +----------+   +-----------+   |
+   *    |           |                        |   +---+        |
+   *                +------------------------+-->|fin| - - - -
+   *    |         +---+                      |   +---+
+   *     - - - - -|fin|<---------------------+
+   *              +---+
+   *
+   * @param {Number} code Status code explaining why the connection is closing
+   * @param {String} data A string explaining why the connection is closing
+   * @public
+   */
+  close(code, data) {
+    if (this.readyState === WebSocket.CLOSED) return;
+    if (this.readyState === WebSocket.CONNECTING) {
+      const msg = 'WebSocket was closed before the connection was established';
+      return abortHandshake(this, this._req, msg);
+    }
+
+    if (this.readyState === WebSocket.CLOSING) {
+      if (this._closeFrameSent && this._closeFrameReceived) this._socket.end();
+      return;
+    }
+
+    this.readyState = WebSocket.CLOSING;
+    this._sender.close(code, data, !this._isServer, (err) => {
+      //
+      // This error is handled by the `'error'` listener on the socket. We only
+      // want to know if the close frame has been sent here.
+      //
+      if (err) return;
+
+      this._closeFrameSent = true;
+
+      if (this._socket.writable) {
+        if (this._closeFrameReceived) this._socket.end();
+
+        //
+        // Ensure that the connection is closed even if the closing handshake
+        // fails.
+        //
+        this._closeTimer = setTimeout(
+          this._socket.destroy.bind(this._socket),
+          closeTimeout
+        );
+      }
+    });
+  }
+
+  /**
+   * Send a ping.
+   *
+   * @param {*} data The data to send
+   * @param {Boolean} mask Indicates whether or not to mask `data`
+   * @param {Function} cb Callback which is executed when the ping is sent
+   * @public
+   */
+  ping(data, mask, cb) {
+    if (typeof data === 'function') {
+      cb = data;
+      data = mask = undefined;
+    } else if (typeof mask === 'function') {
+      cb = mask;
+      mask = undefined;
+    }
+
+    if (this.readyState !== WebSocket.OPEN) {
+      const err = new Error(
+        `WebSocket is not open: readyState ${this.readyState} ` +
+          `(${readyStates[this.readyState]})`
+      );
+
+      if (cb) return cb(err);
+      throw err;
+    }
+
+    if (typeof data === 'number') data = data.toString();
+    if (mask === undefined) mask = !this._isServer;
+    this._sender.ping(data || constants.EMPTY_BUFFER, mask, cb);
+  }
+
+  /**
+   * Send a pong.
+   *
+   * @param {*} data The data to send
+   * @param {Boolean} mask Indicates whether or not to mask `data`
+   * @param {Function} cb Callback which is executed when the pong is sent
+   * @public
+   */
+  pong(data, mask, cb) {
+    if (typeof data === 'function') {
+      cb = data;
+      data = mask = undefined;
+    } else if (typeof mask === 'function') {
+      cb = mask;
+      mask = undefined;
+    }
+
+    if (this.readyState !== WebSocket.OPEN) {
+      const err = new Error(
+        `WebSocket is not open: readyState ${this.readyState} ` +
+          `(${readyStates[this.readyState]})`
+      );
+
+      if (cb) return cb(err);
+      throw err;
+    }
+
+    if (typeof data === 'number') data = data.toString();
+    if (mask === undefined) mask = !this._isServer;
+    this._sender.pong(data || constants.EMPTY_BUFFER, mask, cb);
+  }
+
+  /**
+   * Send a data message.
+   *
+   * @param {*} data The message to send
+   * @param {Object} options Options object
+   * @param {Boolean} options.compress Specifies whether or not to compress `data`
+   * @param {Boolean} options.binary Specifies whether `data` is binary or text
+   * @param {Boolean} options.fin Specifies whether the fragment is the last one
+   * @param {Boolean} options.mask Specifies whether or not to mask `data`
+   * @param {Function} cb Callback which is executed when data is written out
+   * @public
+   */
+  send(data, options, cb) {
+    if (typeof options === 'function') {
+      cb = options;
+      options = {};
+    }
+
+    if (this.readyState !== WebSocket.OPEN) {
+      const err = new Error(
+        `WebSocket is not open: readyState ${this.readyState} ` +
+          `(${readyStates[this.readyState]})`
+      );
+
+      if (cb) return cb(err);
+      throw err;
+    }
+
+    if (typeof data === 'number') data = data.toString();
+
+    const opts = Object.assign(
+      {
+        binary: typeof data !== 'string',
+        mask: !this._isServer,
+        compress: true,
+        fin: true
+      },
+      options
+    );
+
+    if (!this._extensions[PerMessageDeflate.extensionName]) {
+      opts.compress = false;
+    }
+
+    this._sender.send(data || constants.EMPTY_BUFFER, opts, cb);
+  }
+
+  /**
+   * Forcibly close the connection.
+   *
+   * @public
+   */
+  terminate() {
+    if (this.readyState === WebSocket.CLOSED) return;
+    if (this.readyState === WebSocket.CONNECTING) {
+      const msg = 'WebSocket was closed before the connection was established';
+      return abortHandshake(this, this._req, msg);
+    }
+
+    if (this._socket) {
+      this.readyState = WebSocket.CLOSING;
+      this._socket.destroy();
+    }
+  }
+}
+
+readyStates.forEach((readyState, i) => {
+  WebSocket[readyState] = i;
+});
+
+//
+// Add the `onopen`, `onerror`, `onclose`, and `onmessage` attributes.
+// See https://html.spec.whatwg.org/multipage/comms.html#the-websocket-interface
+//
+['open', 'error', 'close', 'message'].forEach((method) => {
+  Object.defineProperty(WebSocket.prototype, `on${method}`, {
+    /**
+     * Return the listener of the event.
+     *
+     * @return {(Function|undefined)} The event listener or `undefined`
+     * @public
+     */
+    get() {
+      const listeners = this.listeners(method);
+      for (var i = 0; i < listeners.length; i++) {
+        if (listeners[i]._listener) return listeners[i]._listener;
+      }
+
+      return undefined;
+    },
+    /**
+     * Add a listener for the event.
+     *
+     * @param {Function} listener The listener to add
+     * @public
+     */
+    set(listener) {
+      const listeners = this.listeners(method);
+      for (var i = 0; i < listeners.length; i++) {
+        //
+        // Remove only the listeners added via `addEventListener`.
+        //
+        if (listeners[i]._listener) this.removeListener(method, listeners[i]);
+      }
+      this.addEventListener(method, listener);
+    }
+  });
+});
+
+WebSocket.prototype.addEventListener = EventTarget.addEventListener;
+WebSocket.prototype.removeEventListener = EventTarget.removeEventListener;
+
+module.exports = WebSocket;
+
+/**
+ * Initialize a WebSocket client.
+ *
+ * @param {(String|url.Url|url.URL)} address The URL to which to connect
+ * @param {String} protocols The subprotocols
+ * @param {Object} options Connection options
+ * @param {(Boolean|Object)} options.perMessageDeflate Enable/disable permessage-deflate
+ * @param {Number} options.handshakeTimeout Timeout in milliseconds for the handshake request
+ * @param {Number} options.protocolVersion Value of the `Sec-WebSocket-Version` header
+ * @param {String} options.origin Value of the `Origin` or `Sec-WebSocket-Origin` header
+ * @param {Number} options.maxPayload The maximum allowed message size
+ * @private
+ */
+function initAsClient(address, protocols, options) {
+  options = Object.assign(
+    {
+      protocolVersion: protocolVersions[1],
+      perMessageDeflate: true,
+      maxPayload: 100 * 1024 * 1024
+    },
+    options,
+    {
+      createConnection: undefined,
+      socketPath: undefined,
+      hostname: undefined,
+      protocol: undefined,
+      timeout: undefined,
+      method: undefined,
+      auth: undefined,
+      host: undefined,
+      path: undefined,
+      port: undefined
+    }
+  );
+
+  if (!protocolVersions.includes(options.protocolVersion)) {
+    throw new RangeError(
+      `Unsupported protocol version: ${options.protocolVersion} ` +
+        `(supported versions: ${protocolVersions.join(', ')})`
+    );
+  }
+
+  this._isServer = false;
+
+  var parsedUrl;
+
+  if (typeof address === 'object' && address.href !== undefined) {
+    parsedUrl = address;
+    this.url = address.href;
+  } else {
+    //
+    // The WHATWG URL constructor is not available on Node.js < 6.13.0
+    //
+    parsedUrl = url.URL ? new url.URL(address) : url.parse(address);
+    this.url = address;
+  }
+
+  const isUnixSocket = parsedUrl.protocol === 'ws+unix:';
+
+  if (!parsedUrl.host && (!isUnixSocket || !parsedUrl.pathname)) {
+    throw new Error(`Invalid URL: ${this.url}`);
+  }
+
+  const isSecure =
+    parsedUrl.protocol === 'wss:' || parsedUrl.protocol === 'https:';
+  const defaultPort = isSecure ? 443 : 80;
+  const key = crypto.randomBytes(16).toString('base64');
+  const httpObj = isSecure ? https : http;
+  const path = parsedUrl.search
+    ? `${parsedUrl.pathname || '/'}${parsedUrl.search}`
+    : parsedUrl.pathname || '/';
+  var perMessageDeflate;
+
+  options.createConnection = isSecure ? tlsConnect : netConnect;
+  options.defaultPort = options.defaultPort || defaultPort;
+  options.port = parsedUrl.port || defaultPort;
+  options.host = parsedUrl.hostname.startsWith('[')
+    ? parsedUrl.hostname.slice(1, -1)
+    : parsedUrl.hostname;
+  options.headers = Object.assign(
+    {
+      'Sec-WebSocket-Version': options.protocolVersion,
+      'Sec-WebSocket-Key': key,
+      Connection: 'Upgrade',
+      Upgrade: 'websocket'
+    },
+    options.headers
+  );
+  options.path = path;
+  options.timeout = options.handshakeTimeout;
+
+  if (options.perMessageDeflate) {
+    perMessageDeflate = new PerMessageDeflate(
+      options.perMessageDeflate !== true ? options.perMessageDeflate : {},
+      false,
+      options.maxPayload
+    );
+    options.headers['Sec-WebSocket-Extensions'] = extension.format({
+      [PerMessageDeflate.extensionName]: perMessageDeflate.offer()
+    });
+  }
+  if (protocols) {
+    options.headers['Sec-WebSocket-Protocol'] = protocols;
+  }
+  if (options.origin) {
+    if (options.protocolVersion < 13) {
+      options.headers['Sec-WebSocket-Origin'] = options.origin;
+    } else {
+      options.headers.Origin = options.origin;
+    }
+  }
+  if (parsedUrl.auth) {
+    options.auth = parsedUrl.auth;
+  } else if (parsedUrl.username || parsedUrl.password) {
+    options.auth = `${parsedUrl.username}:${parsedUrl.password}`;
+  }
+
+  if (isUnixSocket) {
+    const parts = path.split(':');
+
+    options.socketPath = parts[0];
+    options.path = parts[1];
+  }
+
+  var req = (this._req = httpObj.get(options));
+
+  if (options.handshakeTimeout) {
+    req.on('timeout', () => {
+      abortHandshake(this, req, 'Opening handshake has timed out');
+    });
+  }
+
+  req.on('error', (err) => {
+    if (this._req.aborted) return;
+
+    req = this._req = null;
+    this.readyState = WebSocket.CLOSING;
+    this.emit('error', err);
+    this.emitClose();
+  });
+
+  req.on('response', (res) => {
+    if (this.emit('unexpected-response', req, res)) return;
+
+    abortHandshake(this, req, `Unexpected server response: ${res.statusCode}`);
+  });
+
+  req.on('upgrade', (res, socket, head) => {
+    this.emit('upgrade', res);
+
+    //
+    // The user may have closed the connection from a listener of the `upgrade`
+    // event.
+    //
+    if (this.readyState !== WebSocket.CONNECTING) return;
+
+    req = this._req = null;
+
+    const digest = crypto
+      .createHash('sha1')
+      .update(key + constants.GUID, 'binary')
+      .digest('base64');
+
+    if (res.headers['sec-websocket-accept'] !== digest) {
+      abortHandshake(this, socket, 'Invalid Sec-WebSocket-Accept header');
+      return;
+    }
+
+    const serverProt = res.headers['sec-websocket-protocol'];
+    const protList = (protocols || '').split(/, */);
+    var protError;
+
+    if (!protocols && serverProt) {
+      protError = 'Server sent a subprotocol but none was requested';
+    } else if (protocols && !serverProt) {
+      protError = 'Server sent no subprotocol';
+    } else if (serverProt && !protList.includes(serverProt)) {
+      protError = 'Server sent an invalid subprotocol';
+    }
+
+    if (protError) {
+      abortHandshake(this, socket, protError);
+      return;
+    }
+
+    if (serverProt) this.protocol = serverProt;
+
+    if (perMessageDeflate) {
+      try {
+        const extensions = extension.parse(
+          res.headers['sec-websocket-extensions']
+        );
+
+        if (extensions[PerMessageDeflate.extensionName]) {
+          perMessageDeflate.accept(extensions[PerMessageDeflate.extensionName]);
+          this._extensions[PerMessageDeflate.extensionName] = perMessageDeflate;
+        }
+      } catch (err) {
+        abortHandshake(this, socket, 'Invalid Sec-WebSocket-Extensions header');
+        return;
+      }
+    }
+
+    this.setSocket(socket, head, options.maxPayload);
+  });
+}
+
+/**
+ * Create a `net.Socket` and initiate a connection.
+ *
+ * @param {Object} options Connection options
+ * @return {net.Socket} The newly created socket used to start the connection
+ * @private
+ */
+function netConnect(options) {
+  //
+  // Override `options.path` only if `options` is a copy of the original options
+  // object. This is always true on Node.js >= 8 but not on Node.js 6 where
+  // `options.socketPath` might be `undefined` even if the `socketPath` option
+  // was originally set.
+  //
+  if (options.protocolVersion) options.path = options.socketPath;
+  return net.connect(options);
+}
+
+/**
+ * Create a `tls.TLSSocket` and initiate a connection.
+ *
+ * @param {Object} options Connection options
+ * @return {tls.TLSSocket} The newly created socket used to start the connection
+ * @private
+ */
+function tlsConnect(options) {
+  options.path = undefined;
+  options.servername = options.servername || options.host;
+  return tls.connect(options);
+}
+
+/**
+ * Abort the handshake and emit an error.
+ *
+ * @param {WebSocket} websocket The WebSocket instance
+ * @param {(http.ClientRequest|net.Socket)} stream The request to abort or the
+ *     socket to destroy
+ * @param {String} message The error message
+ * @private
+ */
+function abortHandshake(websocket, stream, message) {
+  websocket.readyState = WebSocket.CLOSING;
+
+  const err = new Error(message);
+  Error.captureStackTrace(err, abortHandshake);
+
+  if (stream.setHeader) {
+    stream.abort();
+    stream.once('abort', websocket.emitClose.bind(websocket));
+    websocket.emit('error', err);
+  } else {
+    stream.destroy(err);
+    stream.once('error', websocket.emit.bind(websocket, 'error'));
+    stream.once('close', websocket.emitClose.bind(websocket));
+  }
+}
+
+/**
+ * The listener of the `Receiver` `'conclude'` event.
+ *
+ * @param {Number} code The status code
+ * @param {String} reason The reason for closing
+ * @private
+ */
+function receiverOnConclude(code, reason) {
+  const websocket = this[kWebSocket];
+
+  websocket._socket.removeListener('data', socketOnData);
+  websocket._socket.resume();
+
+  websocket._closeFrameReceived = true;
+  websocket._closeMessage = reason;
+  websocket._closeCode = code;
+
+  if (code === 1005) websocket.close();
+  else websocket.close(code, reason);
+}
+
+/**
+ * The listener of the `Receiver` `'drain'` event.
+ *
+ * @private
+ */
+function receiverOnDrain() {
+  this[kWebSocket]._socket.resume();
+}
+
+/**
+ * The listener of the `Receiver` `'error'` event.
+ *
+ * @param {(RangeError|Error)} err The emitted error
+ * @private
+ */
+function receiverOnError(err) {
+  const websocket = this[kWebSocket];
+
+  websocket._socket.removeListener('data', socketOnData);
+
+  websocket.readyState = WebSocket.CLOSING;
+  websocket._closeCode = err[constants.kStatusCode];
+  websocket.emit('error', err);
+  websocket._socket.destroy();
+}
+
+/**
+ * The listener of the `Receiver` `'finish'` event.
+ *
+ * @private
+ */
+function receiverOnFinish() {
+  this[kWebSocket].emitClose();
+}
+
+/**
+ * The listener of the `Receiver` `'message'` event.
+ *
+ * @param {(String|Buffer|ArrayBuffer|Buffer[])} data The message
+ * @private
+ */
+function receiverOnMessage(data) {
+  this[kWebSocket].emit('message', data);
+}
+
+/**
+ * The listener of the `Receiver` `'ping'` event.
+ *
+ * @param {Buffer} data The data included in the ping frame
+ * @private
+ */
+function receiverOnPing(data) {
+  const websocket = this[kWebSocket];
+
+  websocket.pong(data, !websocket._isServer, constants.NOOP);
+  websocket.emit('ping', data);
+}
+
+/**
+ * The listener of the `Receiver` `'pong'` event.
+ *
+ * @param {Buffer} data The data included in the pong frame
+ * @private
+ */
+function receiverOnPong(data) {
+  this[kWebSocket].emit('pong', data);
+}
+
+/**
+ * The listener of the `net.Socket` `'close'` event.
+ *
+ * @private
+ */
+function socketOnClose() {
+  const websocket = this[kWebSocket];
+
+  this.removeListener('close', socketOnClose);
+  this.removeListener('end', socketOnEnd);
+
+  websocket.readyState = WebSocket.CLOSING;
+
+  //
+  // The close frame might not have been received or the `'end'` event emitted,
+  // for example, if the socket was destroyed due to an error. Ensure that the
+  // `receiver` stream is closed after writing any remaining buffered data to
+  // it. If the readable side of the socket is in flowing mode then there is no
+  // buffered data as everything has been already written and `readable.read()`
+  // will return `null`. If instead, the socket is paused, any possible buffered
+  // data will be read as a single chunk and emitted synchronously in a single
+  // `'data'` event.
+  //
+  websocket._socket.read();
+  websocket._receiver.end();
+
+  this.removeListener('data', socketOnData);
+  this[kWebSocket] = undefined;
+
+  clearTimeout(websocket._closeTimer);
+
+  if (
+    websocket._receiver._writableState.finished ||
+    websocket._receiver._writableState.errorEmitted
+  ) {
+    websocket.emitClose();
+  } else {
+    websocket._receiver.on('error', receiverOnFinish);
+    websocket._receiver.on('finish', receiverOnFinish);
+  }
+}
+
+/**
+ * The listener of the `net.Socket` `'data'` event.
+ *
+ * @param {Buffer} chunk A chunk of data
+ * @private
+ */
+function socketOnData(chunk) {
+  if (!this[kWebSocket]._receiver.write(chunk)) {
+    this.pause();
+  }
+}
+
+/**
+ * The listener of the `net.Socket` `'end'` event.
+ *
+ * @private
+ */
+function socketOnEnd() {
+  const websocket = this[kWebSocket];
+
+  websocket.readyState = WebSocket.CLOSING;
+  websocket._receiver.end();
+  this.end();
+}
+
+/**
+ * The listener of the `net.Socket` `'error'` event.
+ *
+ * @private
+ */
+function socketOnError() {
+  const websocket = this[kWebSocket];
+
+  this.removeListener('error', socketOnError);
+  this.on('error', constants.NOOP);
+
+  if (websocket) {
+    websocket.readyState = WebSocket.CLOSING;
+    this.destroy();
+  }
+}
diff --git a/helloworld/node_modules/xmlhttprequest-ssl/LICENSE b/helloworld/node_modules/xmlhttprequest-ssl/LICENSE
new file mode 100755
index 0000000..1c63271
--- /dev/null
+++ b/helloworld/node_modules/xmlhttprequest-ssl/LICENSE
@@ -0,0 +1,22 @@
+ Copyright (c) 2010 passive.ly LLC
+
+ Permission is hereby granted, free of charge, to any person
+ obtaining a copy of this software and associated documentation
+ files (the "Software"), to deal in the Software without
+ restriction, including without limitation the rights to use,
+ copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the
+ Software is furnished to do so, subject to the following
+ conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ OTHER DEALINGS IN THE SOFTWARE.
diff --git a/helloworld/node_modules/xmlhttprequest-ssl/README.md b/helloworld/node_modules/xmlhttprequest-ssl/README.md
new file mode 100755
index 0000000..e5be153
--- /dev/null
+++ b/helloworld/node_modules/xmlhttprequest-ssl/README.md
@@ -0,0 +1,63 @@
+# node-XMLHttpRequest #
+
+Fork of [node-XMLHttpRequest](https://github.com/driverdan/node-XMLHttpRequest) by [driverdan](http://driverdan.com). Forked and published to npm because a [pull request](https://github.com/rase-/node-XMLHttpRequest/commit/a6b6f296e0a8278165c2d0270d9840b54d5eeadd) is not being created and merged. Changes made by [rase-](https://github.com/rase-/node-XMLHttpRequest/tree/add/ssl-support) are needed for [engine.io-client](https://github.com/Automattic/engine.io-client).
+
+## Usage ## 
+
+Here's how to include the module in your project and use as the browser-based
+XHR object.
+
+	var XMLHttpRequest = require("xmlhttprequest-ssl").XMLHttpRequest;
+	var xhr = new XMLHttpRequest();
+
+Note: use the lowercase string "xmlhttprequest-ssl" in your require(). On
+case-sensitive systems (eg Linux) using uppercase letters won't work.
+# Original README #
+
+## Usage ##
+
+Here's how to include the module in your project and use as the browser-based
+XHR object.
+
+	var XMLHttpRequest = require("xmlhttprequest").XMLHttpRequest;
+	var xhr = new XMLHttpRequest();
+
+Note: use the lowercase string "xmlhttprequest" in your require(). On
+case-sensitive systems (eg Linux) using uppercase letters won't work.
+
+## Versions ##
+
+Prior to 1.4.0 version numbers were arbitrary. From 1.4.0 on they conform to
+the standard major.minor.bugfix. 1.x shouldn't necessarily be considered
+stable just because it's above 0.x.
+
+Since the XMLHttpRequest API is stable this library's API is stable as
+well. Major version numbers indicate significant core code changes.
+Minor versions indicate minor core code changes or better conformity to
+the W3C spec.
+
+## License ##
+
+MIT license. See LICENSE for full details.
+
+## Supports ##
+
+* Async and synchronous requests
+* GET, POST, PUT, and DELETE requests
+* All spec methods (open, send, abort, getRequestHeader,
+  getAllRequestHeaders, event methods)
+* Requests to all domains
+
+## Known Issues / Missing Features ##
+
+For a list of open issues or to report your own visit the [github issues
+page](https://github.com/driverdan/node-XMLHttpRequest/issues).
+
+* Local file access may have unexpected results for non-UTF8 files
+* Synchronous requests don't set headers properly
+* Synchronous requests freeze node while waiting for response (But that's what you want, right? Stick with async!).
+* Some events are missing, such as abort
+* getRequestHeader is case-sensitive
+* Cookies aren't persisted between requests
+* Missing XML support
+* Missing basic auth
diff --git a/helloworld/node_modules/xmlhttprequest-ssl/autotest.watchr b/helloworld/node_modules/xmlhttprequest-ssl/autotest.watchr
new file mode 100755
index 0000000..5324db6
--- /dev/null
+++ b/helloworld/node_modules/xmlhttprequest-ssl/autotest.watchr
@@ -0,0 +1,8 @@
+def run_all_tests
+    puts `clear`
+    puts `node tests/test-constants.js`
+    puts `node tests/test-headers.js`
+    puts `node tests/test-request.js`
+end
+watch('.*.js') { run_all_tests }
+run_all_tests
diff --git a/helloworld/node_modules/xmlhttprequest-ssl/example/demo.js b/helloworld/node_modules/xmlhttprequest-ssl/example/demo.js
new file mode 100755
index 0000000..4f333de
--- /dev/null
+++ b/helloworld/node_modules/xmlhttprequest-ssl/example/demo.js
@@ -0,0 +1,16 @@
+var sys = require('util');
+var XMLHttpRequest = require("xmlhttprequest").XMLHttpRequest;
+
+var xhr = new XMLHttpRequest();
+
+xhr.onreadystatechange = function() {
+	sys.puts("State: " + this.readyState);
+	
+	if (this.readyState == 4) {
+		sys.puts("Complete.\nBody length: " + this.responseText.length);
+		sys.puts("Body:\n" + this.responseText);
+	}
+};
+
+xhr.open("GET", "http://driverdan.com");
+xhr.send();
diff --git a/helloworld/node_modules/xmlhttprequest-ssl/lib/XMLHttpRequest.js b/helloworld/node_modules/xmlhttprequest-ssl/lib/XMLHttpRequest.js
new file mode 100755
index 0000000..3223020
--- /dev/null
+++ b/helloworld/node_modules/xmlhttprequest-ssl/lib/XMLHttpRequest.js
@@ -0,0 +1,651 @@
+/**
+ * Wrapper for built-in http.js to emulate the browser XMLHttpRequest object.
+ *
+ * This can be used with JS designed for browsers to improve reuse of code and
+ * allow the use of existing libraries.
+ *
+ * Usage: include("XMLHttpRequest.js") and use XMLHttpRequest per W3C specs.
+ *
+ * @author Dan DeFelippi <dan@driverdan.com>
+ * @contributor David Ellis <d.f.ellis@ieee.org>
+ * @license MIT
+ */
+
+var fs = require('fs');
+var Url = require('url');
+var spawn = require('child_process').spawn;
+
+/**
+ * Module exports.
+ */
+
+module.exports = XMLHttpRequest;
+
+// backwards-compat
+XMLHttpRequest.XMLHttpRequest = XMLHttpRequest;
+
+/**
+ * `XMLHttpRequest` constructor.
+ *
+ * Supported options for the `opts` object are:
+ *
+ *  - `agent`: An http.Agent instance; http.globalAgent may be used; if 'undefined', agent usage is disabled
+ *
+ * @param {Object} opts optional "options" object
+ */
+
+function XMLHttpRequest(opts) {
+  "use strict";
+
+  opts = opts || {};
+
+  /**
+   * Private variables
+   */
+  var self = this;
+  var http = require('http');
+  var https = require('https');
+
+  // Holds http.js objects
+  var request;
+  var response;
+
+  // Request settings
+  var settings = {};
+
+  // Disable header blacklist.
+  // Not part of XHR specs.
+  var disableHeaderCheck = false;
+
+  // Set some default headers
+  var defaultHeaders = {
+    "User-Agent": "node-XMLHttpRequest",
+    "Accept": "*/*"
+  };
+
+  var headers = Object.assign({}, defaultHeaders);
+
+  // These headers are not user setable.
+  // The following are allowed but banned in the spec:
+  // * user-agent
+  var forbiddenRequestHeaders = [
+    "accept-charset",
+    "accept-encoding",
+    "access-control-request-headers",
+    "access-control-request-method",
+    "connection",
+    "content-length",
+    "content-transfer-encoding",
+    "cookie",
+    "cookie2",
+    "date",
+    "expect",
+    "host",
+    "keep-alive",
+    "origin",
+    "referer",
+    "te",
+    "trailer",
+    "transfer-encoding",
+    "upgrade",
+    "via"
+  ];
+
+  // These request methods are not allowed
+  var forbiddenRequestMethods = [
+    "TRACE",
+    "TRACK",
+    "CONNECT"
+  ];
+
+  // Send flag
+  var sendFlag = false;
+  // Error flag, used when errors occur or abort is called
+  var errorFlag = false;
+
+  // Event listeners
+  var listeners = {};
+
+  /**
+   * Constants
+   */
+
+  this.UNSENT = 0;
+  this.OPENED = 1;
+  this.HEADERS_RECEIVED = 2;
+  this.LOADING = 3;
+  this.DONE = 4;
+
+  /**
+   * Public vars
+   */
+
+  // Current state
+  this.readyState = this.UNSENT;
+
+  // default ready state change handler in case one is not set or is set late
+  this.onreadystatechange = null;
+
+  // Result & response
+  this.responseText = "";
+  this.responseXML = "";
+  this.status = null;
+  this.statusText = null;
+
+  /**
+   * Private methods
+   */
+
+  /**
+   * Check if the specified header is allowed.
+   *
+   * @param string header Header to validate
+   * @return boolean False if not allowed, otherwise true
+   */
+  var isAllowedHttpHeader = function(header) {
+    return disableHeaderCheck || (header && forbiddenRequestHeaders.indexOf(header.toLowerCase()) === -1);
+  };
+
+  /**
+   * Check if the specified method is allowed.
+   *
+   * @param string method Request method to validate
+   * @return boolean False if not allowed, otherwise true
+   */
+  var isAllowedHttpMethod = function(method) {
+    return (method && forbiddenRequestMethods.indexOf(method) === -1);
+  };
+
+  /**
+   * Public methods
+   */
+
+  /**
+   * Open the connection. Currently supports local server requests.
+   *
+   * @param string method Connection method (eg GET, POST)
+   * @param string url URL for the connection.
+   * @param boolean async Asynchronous connection. Default is true.
+   * @param string user Username for basic authentication (optional)
+   * @param string password Password for basic authentication (optional)
+   */
+  this.open = function(method, url, async, user, password) {
+    this.abort();
+    errorFlag = false;
+
+    // Check for valid request method
+    if (!isAllowedHttpMethod(method)) {
+      throw "SecurityError: Request method not allowed";
+    }
+
+    settings = {
+      "method": method,
+      "url": url.toString(),
+      "async": (typeof async !== "boolean" ? true : async),
+      "user": user || null,
+      "password": password || null
+    };
+
+    setState(this.OPENED);
+  };
+
+  /**
+   * Disables or enables isAllowedHttpHeader() check the request. Enabled by default.
+   * This does not conform to the W3C spec.
+   *
+   * @param boolean state Enable or disable header checking.
+   */
+  this.setDisableHeaderCheck = function(state) {
+    disableHeaderCheck = state;
+  };
+
+  /**
+   * Sets a header for the request.
+   *
+   * @param string header Header name
+   * @param string value Header value
+   * @return boolean Header added
+   */
+  this.setRequestHeader = function(header, value) {
+    if (this.readyState != this.OPENED) {
+      throw "INVALID_STATE_ERR: setRequestHeader can only be called when state is OPEN";
+      return false;
+    }
+    if (!isAllowedHttpHeader(header)) {
+      console.warn('Refused to set unsafe header "' + header + '"');
+      return false;
+    }
+    if (sendFlag) {
+      throw "INVALID_STATE_ERR: send flag is true";
+      return false;
+    }
+    headers[header] = value;
+    return true;
+  };
+
+  /**
+   * Gets a header from the server response.
+   *
+   * @param string header Name of header to get.
+   * @return string Text of the header or null if it doesn't exist.
+   */
+  this.getResponseHeader = function(header) {
+    if (typeof header === "string"
+      && this.readyState > this.OPENED
+      && response.headers[header.toLowerCase()]
+      && !errorFlag
+    ) {
+      return response.headers[header.toLowerCase()];
+    }
+
+    return null;
+  };
+
+  /**
+   * Gets all the response headers.
+   *
+   * @return string A string with all response headers separated by CR+LF
+   */
+  this.getAllResponseHeaders = function() {
+    if (this.readyState < this.HEADERS_RECEIVED || errorFlag) {
+      return "";
+    }
+    var result = "";
+
+    for (var i in response.headers) {
+      // Cookie headers are excluded
+      if (i !== "set-cookie" && i !== "set-cookie2") {
+        result += i + ": " + response.headers[i] + "\r\n";
+      }
+    }
+    return result.substr(0, result.length - 2);
+  };
+
+  /**
+   * Gets a request header
+   *
+   * @param string name Name of header to get
+   * @return string Returns the request header or empty string if not set
+   */
+  this.getRequestHeader = function(name) {
+    // @TODO Make this case insensitive
+    if (typeof name === "string" && headers[name]) {
+      return headers[name];
+    }
+
+    return "";
+  };
+
+  /**
+   * Sends the request to the server.
+   *
+   * @param string data Optional data to send as request body.
+   */
+  this.send = function(data) {
+    if (this.readyState != this.OPENED) {
+      throw "INVALID_STATE_ERR: connection must be opened before send() is called";
+    }
+
+    if (sendFlag) {
+      throw "INVALID_STATE_ERR: send has already been called";
+    }
+
+    var ssl = false, local = false;
+    var url = Url.parse(settings.url);
+    var host;
+    // Determine the server
+    switch (url.protocol) {
+      case 'https:':
+        ssl = true;
+        // SSL & non-SSL both need host, no break here.
+      case 'http:':
+        host = url.hostname;
+        break;
+
+      case 'file:':
+        local = true;
+        break;
+
+      case undefined:
+      case '':
+        host = "localhost";
+        break;
+
+      default:
+        throw "Protocol not supported.";
+    }
+
+    // Load files off the local filesystem (file://)
+    if (local) {
+      if (settings.method !== "GET") {
+        throw "XMLHttpRequest: Only GET method is supported";
+      }
+
+      if (settings.async) {
+        fs.readFile(url.pathname, 'utf8', function(error, data) {
+          if (error) {
+            self.handleError(error);
+          } else {
+            self.status = 200;
+            self.responseText = data;
+            setState(self.DONE);
+          }
+        });
+      } else {
+        try {
+          this.responseText = fs.readFileSync(url.pathname, 'utf8');
+          this.status = 200;
+          setState(self.DONE);
+        } catch(e) {
+          this.handleError(e);
+        }
+      }
+
+      return;
+    }
+
+    // Default to port 80. If accessing localhost on another port be sure
+    // to use http://localhost:port/path
+    var port = url.port || (ssl ? 443 : 80);
+    // Add query string if one is used
+    var uri = url.pathname + (url.search ? url.search : '');
+
+    // Set the Host header or the server may reject the request
+    headers["Host"] = host;
+    if (!((ssl && port === 443) || port === 80)) {
+      headers["Host"] += ':' + url.port;
+    }
+
+    // Set Basic Auth if necessary
+    if (settings.user) {
+      if (typeof settings.password == "undefined") {
+        settings.password = "";
+      }
+      var authBuf = new Buffer(settings.user + ":" + settings.password);
+      headers["Authorization"] = "Basic " + authBuf.toString("base64");
+    }
+
+    // Set content length header
+    if (settings.method === "GET" || settings.method === "HEAD") {
+      data = null;
+    } else if (data) {
+      headers["Content-Length"] = Buffer.isBuffer(data) ? data.length : Buffer.byteLength(data);
+
+      if (!headers["Content-Type"]) {
+        headers["Content-Type"] = "text/plain;charset=UTF-8";
+      }
+    } else if (settings.method === "POST") {
+      // For a post with no data set Content-Length: 0.
+      // This is required by buggy servers that don't meet the specs.
+      headers["Content-Length"] = 0;
+    }
+
+    var agent = opts.agent || false;
+    var options = {
+      host: host,
+      port: port,
+      path: uri,
+      method: settings.method,
+      headers: headers,
+      agent: agent
+    };
+
+    if (ssl) {
+      options.pfx = opts.pfx;
+      options.key = opts.key;
+      options.passphrase = opts.passphrase;
+      options.cert = opts.cert;
+      options.ca = opts.ca;
+      options.ciphers = opts.ciphers;
+      options.rejectUnauthorized = opts.rejectUnauthorized;
+    }
+
+    // Reset error flag
+    errorFlag = false;
+
+    // Handle async requests
+    if (settings.async) {
+      // Use the proper protocol
+      var doRequest = ssl ? https.request : http.request;
+
+      // Request is being sent, set send flag
+      sendFlag = true;
+
+      // As per spec, this is called here for historical reasons.
+      self.dispatchEvent("readystatechange");
+
+      // Handler for the response
+      var responseHandler = function(resp) {
+        // Set response var to the response we got back
+        // This is so it remains accessable outside this scope
+        response = resp;
+        // Check for redirect
+        // @TODO Prevent looped redirects
+        if (response.statusCode === 302 || response.statusCode === 303 || response.statusCode === 307) {
+          // Change URL to the redirect location
+          settings.url = response.headers.location;
+          var url = Url.parse(settings.url);
+          // Set host var in case it's used later
+          host = url.hostname;
+          // Options for the new request
+          var newOptions = {
+            hostname: url.hostname,
+            port: url.port,
+            path: url.path,
+            method: response.statusCode === 303 ? 'GET' : settings.method,
+            headers: headers
+          };
+
+          if (ssl) {
+            newOptions.pfx = opts.pfx;
+            newOptions.key = opts.key;
+            newOptions.passphrase = opts.passphrase;
+            newOptions.cert = opts.cert;
+            newOptions.ca = opts.ca;
+            newOptions.ciphers = opts.ciphers;
+            newOptions.rejectUnauthorized = opts.rejectUnauthorized;
+          }
+
+          // Issue the new request
+          request = doRequest(newOptions, responseHandler).on('error', errorHandler);
+          request.end();
+          // @TODO Check if an XHR event needs to be fired here
+          return;
+        }
+
+        if (response && response.setEncoding) {
+          response.setEncoding("utf8");
+        }
+
+        setState(self.HEADERS_RECEIVED);
+        self.status = response.statusCode;
+
+        response.on('data', function(chunk) {
+          // Make sure there's some data
+          if (chunk) {
+            self.responseText += chunk;
+          }
+          // Don't emit state changes if the connection has been aborted.
+          if (sendFlag) {
+            setState(self.LOADING);
+          }
+        });
+
+        response.on('end', function() {
+          if (sendFlag) {
+            // The sendFlag needs to be set before setState is called.  Otherwise if we are chaining callbacks
+            // there can be a timing issue (the callback is called and a new call is made before the flag is reset).
+            sendFlag = false;
+            // Discard the 'end' event if the connection has been aborted
+            setState(self.DONE);
+          }
+        });
+
+        response.on('error', function(error) {
+          self.handleError(error);
+        });
+      }
+
+      // Error handler for the request
+      var errorHandler = function(error) {
+        self.handleError(error);
+      }
+
+      // Create the request
+      request = doRequest(options, responseHandler).on('error', errorHandler);
+
+      // Node 0.4 and later won't accept empty data. Make sure it's needed.
+      if (data) {
+        request.write(data);
+      }
+
+      request.end();
+
+      self.dispatchEvent("loadstart");
+    } else { // Synchronous
+      // Create a temporary file for communication with the other Node process
+      var contentFile = ".node-xmlhttprequest-content-" + process.pid;
+      var syncFile = ".node-xmlhttprequest-sync-" + process.pid;
+      fs.writeFileSync(syncFile, "", "utf8");
+      // The async request the other Node process executes
+      var execString = "var http = require('http'), https = require('https'), fs = require('fs');"
+        + "var doRequest = http" + (ssl ? "s" : "") + ".request;"
+        + "var options = " + JSON.stringify(options) + ";"
+        + "var responseText = '';"
+        + "var req = doRequest(options, function(response) {"
+        + "response.setEncoding('utf8');"
+        + "response.on('data', function(chunk) {"
+        + "  responseText += chunk;"
+        + "});"
+        + "response.on('end', function() {"
+        + "fs.writeFileSync('" + contentFile + "', 'NODE-XMLHTTPREQUEST-STATUS:' + response.statusCode + ',' + responseText, 'utf8');"
+        + "fs.unlinkSync('" + syncFile + "');"
+        + "});"
+        + "response.on('error', function(error) {"
+        + "fs.writeFileSync('" + contentFile + "', 'NODE-XMLHTTPREQUEST-ERROR:' + JSON.stringify(error), 'utf8');"
+        + "fs.unlinkSync('" + syncFile + "');"
+        + "});"
+        + "}).on('error', function(error) {"
+        + "fs.writeFileSync('" + contentFile + "', 'NODE-XMLHTTPREQUEST-ERROR:' + JSON.stringify(error), 'utf8');"
+        + "fs.unlinkSync('" + syncFile + "');"
+        + "});"
+        + (data ? "req.write('" + data.replace(/'/g, "\\'") + "');":"")
+        + "req.end();";
+      // Start the other Node Process, executing this string
+      var syncProc = spawn(process.argv[0], ["-e", execString]);
+      var statusText;
+      while(fs.existsSync(syncFile)) {
+        // Wait while the sync file is empty
+      }
+      self.responseText = fs.readFileSync(contentFile, 'utf8');
+      // Kill the child process once the file has data
+      syncProc.stdin.end();
+      // Remove the temporary file
+      fs.unlinkSync(contentFile);
+      if (self.responseText.match(/^NODE-XMLHTTPREQUEST-ERROR:/)) {
+        // If the file returned an error, handle it
+        var errorObj = self.responseText.replace(/^NODE-XMLHTTPREQUEST-ERROR:/, "");
+        self.handleError(errorObj);
+      } else {
+        // If the file returned okay, parse its data and move to the DONE state
+        self.status = self.responseText.replace(/^NODE-XMLHTTPREQUEST-STATUS:([0-9]*),.*/, "$1");
+        self.responseText = self.responseText.replace(/^NODE-XMLHTTPREQUEST-STATUS:[0-9]*,(.*)/, "$1");
+        setState(self.DONE);
+      }
+    }
+  };
+
+  /**
+   * Called when an error is encountered to deal with it.
+   */
+  this.handleError = function(error) {
+    this.status = 503;
+    this.statusText = error;
+    this.responseText = error.stack;
+    errorFlag = true;
+    setState(this.DONE);
+  };
+
+  /**
+   * Aborts a request.
+   */
+  this.abort = function() {
+    if (request) {
+      request.abort();
+      request = null;
+    }
+
+    headers = Object.assign({}, defaultHeaders);
+    this.responseText = "";
+    this.responseXML = "";
+
+    errorFlag = true;
+
+    if (this.readyState !== this.UNSENT
+        && (this.readyState !== this.OPENED || sendFlag)
+        && this.readyState !== this.DONE) {
+      sendFlag = false;
+      setState(this.DONE);
+    }
+    this.readyState = this.UNSENT;
+  };
+
+  /**
+   * Adds an event listener. Preferred method of binding to events.
+   */
+  this.addEventListener = function(event, callback) {
+    if (!(event in listeners)) {
+      listeners[event] = [];
+    }
+    // Currently allows duplicate callbacks. Should it?
+    listeners[event].push(callback);
+  };
+
+  /**
+   * Remove an event callback that has already been bound.
+   * Only works on the matching funciton, cannot be a copy.
+   */
+  this.removeEventListener = function(event, callback) {
+    if (event in listeners) {
+      // Filter will return a new array with the callback removed
+      listeners[event] = listeners[event].filter(function(ev) {
+        return ev !== callback;
+      });
+    }
+  };
+
+  /**
+   * Dispatch any events, including both "on" methods and events attached using addEventListener.
+   */
+  this.dispatchEvent = function(event) {
+    if (typeof self["on" + event] === "function") {
+      self["on" + event]();
+    }
+    if (event in listeners) {
+      for (var i = 0, len = listeners[event].length; i < len; i++) {
+        listeners[event][i].call(self);
+      }
+    }
+  };
+
+  /**
+   * Changes readyState and calls onreadystatechange.
+   *
+   * @param int state New state
+   */
+  var setState = function(state) {
+    if (self.readyState !== state) {
+      self.readyState = state;
+
+      if (settings.async || self.readyState < self.OPENED || self.readyState === self.DONE) {
+        self.dispatchEvent("readystatechange");
+      }
+
+      if (self.readyState === self.DONE && !errorFlag) {
+        self.dispatchEvent("load");
+        // @TODO figure out InspectorInstrumentation::didLoadXHR(cookie)
+        self.dispatchEvent("loadend");
+      }
+    }
+  };
+};
diff --git a/helloworld/node_modules/xmlhttprequest-ssl/package.json b/helloworld/node_modules/xmlhttprequest-ssl/package.json
new file mode 100755
index 0000000..b81595e
--- /dev/null
+++ b/helloworld/node_modules/xmlhttprequest-ssl/package.json
@@ -0,0 +1,63 @@
+{
+  "_from": "xmlhttprequest-ssl@~1.5.4",
+  "_id": "xmlhttprequest-ssl@1.5.5",
+  "_inBundle": false,
+  "_integrity": "sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4=",
+  "_location": "/xmlhttprequest-ssl",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "xmlhttprequest-ssl@~1.5.4",
+    "name": "xmlhttprequest-ssl",
+    "escapedName": "xmlhttprequest-ssl",
+    "rawSpec": "~1.5.4",
+    "saveSpec": null,
+    "fetchSpec": "~1.5.4"
+  },
+  "_requiredBy": [
+    "/engine.io-client"
+  ],
+  "_resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz",
+  "_shasum": "c2876b06168aadc40e57d97e81191ac8f4398b3e",
+  "_spec": "xmlhttprequest-ssl@~1.5.4",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/engine.io-client",
+  "author": {
+    "name": "Michael de Wit"
+  },
+  "bugs": {
+    "url": "http://github.com/mjwwit/node-XMLHttpRequest/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {},
+  "deprecated": false,
+  "description": "XMLHttpRequest for Node",
+  "directories": {
+    "lib": "./lib",
+    "example": "./example"
+  },
+  "engines": {
+    "node": ">=0.4.0"
+  },
+  "homepage": "https://github.com/mjwwit/node-XMLHttpRequest#readme",
+  "keywords": [
+    "xhr",
+    "ajax"
+  ],
+  "licenses": [
+    {
+      "type": "MIT",
+      "url": "http://creativecommons.org/licenses/MIT/"
+    }
+  ],
+  "main": "./lib/XMLHttpRequest.js",
+  "name": "xmlhttprequest-ssl",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/mjwwit/node-XMLHttpRequest.git"
+  },
+  "scripts": {
+    "test": "cd ./tests && node test-constants.js && node test-events.js && node test-exceptions.js && node test-headers.js && node test-redirect-302.js && node test-redirect-303.js && node test-redirect-307.js && node test-request-methods.js && node test-request-protocols.js"
+  },
+  "version": "1.5.5"
+}
diff --git a/helloworld/node_modules/xmlhttprequest-ssl/tests/test-constants.js b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-constants.js
new file mode 100755
index 0000000..372e46c
--- /dev/null
+++ b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-constants.js
@@ -0,0 +1,13 @@
+var sys = require("util")
+  , assert = require("assert")
+  , XMLHttpRequest = require("../lib/XMLHttpRequest").XMLHttpRequest
+  , xhr = new XMLHttpRequest();
+
+// Test constant values
+assert.equal(0, xhr.UNSENT);
+assert.equal(1, xhr.OPENED);
+assert.equal(2, xhr.HEADERS_RECEIVED);
+assert.equal(3, xhr.LOADING);
+assert.equal(4, xhr.DONE);
+
+sys.puts("done");
diff --git a/helloworld/node_modules/xmlhttprequest-ssl/tests/test-events.js b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-events.js
new file mode 100755
index 0000000..c72f001
--- /dev/null
+++ b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-events.js
@@ -0,0 +1,50 @@
+var sys = require("util")
+  , assert = require("assert")
+  , http = require("http")
+  , XMLHttpRequest = require("../lib/XMLHttpRequest").XMLHttpRequest
+  , xhr;
+
+// Test server
+var server = http.createServer(function (req, res) {
+  var body = (req.method != "HEAD" ? "Hello World" : "");
+
+  res.writeHead(200, {
+    "Content-Type": "text/plain",
+    "Content-Length": Buffer.byteLength(body)
+  });
+  // HEAD has no body
+  if (req.method != "HEAD") {
+    res.write(body);
+  }
+  res.end();
+  assert.equal(onreadystatechange, true);
+  assert.equal(readystatechange, true);
+  assert.equal(removed, true);
+  sys.puts("done");
+  this.close();
+}).listen(8000);
+
+xhr = new XMLHttpRequest();
+
+// Track event calls
+var onreadystatechange = false;
+var readystatechange = false;
+var removed = true;
+var removedEvent = function() {
+  removed = false;
+};
+
+xhr.onreadystatechange = function() {
+  onreadystatechange = true;
+};
+
+xhr.addEventListener("readystatechange", function() {
+  readystatechange = true;
+});
+
+// This isn't perfect, won't guarantee it was added in the first place
+xhr.addEventListener("readystatechange", removedEvent);
+xhr.removeEventListener("readystatechange", removedEvent);
+
+xhr.open("GET", "http://localhost:8000");
+xhr.send();
diff --git a/helloworld/node_modules/xmlhttprequest-ssl/tests/test-exceptions.js b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-exceptions.js
new file mode 100755
index 0000000..10eaea2
--- /dev/null
+++ b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-exceptions.js
@@ -0,0 +1,59 @@
+var sys = require("util")
+  , assert = require("assert")
+  , XMLHttpRequest = require("../lib/XMLHttpRequest").XMLHttpRequest
+  , xhr = new XMLHttpRequest();
+
+// Test request methods that aren't allowed
+try {
+  xhr.open("TRACK", "http://localhost:8000/");
+  console.log("ERROR: TRACK should have thrown exception");
+} catch(e) {}
+try {
+  xhr.open("TRACE", "http://localhost:8000/");
+  console.log("ERROR: TRACE should have thrown exception");
+} catch(e) {}
+try {
+  xhr.open("CONNECT", "http://localhost:8000/");
+  console.log("ERROR: CONNECT should have thrown exception");
+} catch(e) {}
+// Test valid request method
+try {
+  xhr.open("GET", "http://localhost:8000/");
+} catch(e) {
+  console.log("ERROR: Invalid exception for GET", e);
+}
+
+// Test forbidden headers
+var forbiddenRequestHeaders = [
+  "accept-charset",
+  "accept-encoding",
+  "access-control-request-headers",
+  "access-control-request-method",
+  "connection",
+  "content-length",
+  "content-transfer-encoding",
+  "cookie",
+  "cookie2",
+  "date",
+  "expect",
+  "host",
+  "keep-alive",
+  "origin",
+  "referer",
+  "te",
+  "trailer",
+  "transfer-encoding",
+  "upgrade",
+  "via"
+];
+
+for (var i in forbiddenRequestHeaders) {
+  if(xhr.setRequestHeader(forbiddenRequestHeaders[i], "Test") !== false) {
+    console.log("ERROR: " + forbiddenRequestHeaders[i] + " should have thrown exception");
+  }
+}
+
+// Try valid header
+xhr.setRequestHeader("X-Foobar", "Test");
+
+console.log("Done");
diff --git a/helloworld/node_modules/xmlhttprequest-ssl/tests/test-headers.js b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-headers.js
new file mode 100755
index 0000000..76454f1
--- /dev/null
+++ b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-headers.js
@@ -0,0 +1,76 @@
+var sys = require("util")
+  , assert = require("assert")
+  , XMLHttpRequest = require("../lib/XMLHttpRequest").XMLHttpRequest
+  , xhr = new XMLHttpRequest()
+  , http = require("http");
+
+// Test server
+var server = http.createServer(function (req, res) {
+  // Test setRequestHeader
+  assert.equal("Foobar", req.headers["x-test"]);
+  // Test non-conforming allowed header
+  assert.equal("node-XMLHttpRequest-test", req.headers["user-agent"]);
+  // Test header set with blacklist disabled
+  assert.equal("http://github.com", req.headers["referer"]);
+
+  var body = "Hello World";
+  res.writeHead(200, {
+    "Content-Type": "text/plain",
+    "Content-Length": Buffer.byteLength(body),
+    // Set cookie headers to see if they're correctly suppressed
+    // Actual values don't matter
+    "Set-Cookie": "foo=bar",
+    "Set-Cookie2": "bar=baz",
+    "Date": "Thu, 30 Aug 2012 18:17:53 GMT",
+    "Connection": "close"
+  });
+  res.write("Hello World");
+  res.end();
+
+  this.close();
+}).listen(8000);
+
+xhr.onreadystatechange = function() {
+  if (this.readyState == 4) {
+    // Test getAllResponseHeaders()
+    var headers = "content-type: text/plain\r\ncontent-length: 11\r\ndate: Thu, 30 Aug 2012 18:17:53 GMT\r\nconnection: close";
+    assert.equal(headers, this.getAllResponseHeaders());
+
+    // Test case insensitivity
+    assert.equal('text/plain', this.getResponseHeader('Content-Type'));
+    assert.equal('text/plain', this.getResponseHeader('Content-type'));
+    assert.equal('text/plain', this.getResponseHeader('content-Type'));
+    assert.equal('text/plain', this.getResponseHeader('content-type'));
+
+    // Test aborted getAllResponseHeaders
+    this.abort();
+    assert.equal("", this.getAllResponseHeaders());
+    assert.equal(null, this.getResponseHeader("Connection"));
+
+    sys.puts("done");
+  }
+};
+
+assert.equal(null, xhr.getResponseHeader("Content-Type"));
+try {
+  xhr.open("GET", "http://localhost:8000/");
+  // Valid header
+  xhr.setRequestHeader("X-Test", "Foobar");
+  // Invalid header
+  xhr.setRequestHeader("Content-Length", 0);
+  // Allowed header outside of specs
+  xhr.setRequestHeader("user-agent", "node-XMLHttpRequest-test");
+  // Test getRequestHeader
+  assert.equal("Foobar", xhr.getRequestHeader("X-Test"));
+  // Test invalid header
+  assert.equal("", xhr.getRequestHeader("Content-Length"));
+
+  // Test allowing all headers
+  xhr.setDisableHeaderCheck(true);
+  xhr.setRequestHeader("Referer", "http://github.com");
+  assert.equal("http://github.com", xhr.getRequestHeader("Referer"));
+
+  xhr.send();
+} catch(e) {
+  console.log("ERROR: Exception raised", e);
+}
diff --git a/helloworld/node_modules/xmlhttprequest-ssl/tests/test-redirect-302.js b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-redirect-302.js
new file mode 100755
index 0000000..d884f78
--- /dev/null
+++ b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-redirect-302.js
@@ -0,0 +1,41 @@
+var sys = require("util")
+  , assert = require("assert")
+  , XMLHttpRequest = require("../lib/XMLHttpRequest").XMLHttpRequest
+  , xhr = new XMLHttpRequest()
+  , http = require("http");
+
+// Test server
+var server = http.createServer(function (req, res) {
+  if (req.url === '/redirectingResource') {
+    res.writeHead(302, {'Location': 'http://localhost:8000/'});
+    res.end();
+    return;
+  }
+
+  var body = "Hello World";
+  res.writeHead(200, {
+    "Content-Type": "text/plain",
+    "Content-Length": Buffer.byteLength(body),
+    "Date": "Thu, 30 Aug 2012 18:17:53 GMT",
+    "Connection": "close"
+  });
+  res.write("Hello World");
+  res.end();
+
+  this.close();
+}).listen(8000);
+
+xhr.onreadystatechange = function() {
+  if (this.readyState == 4) {
+    assert.equal(xhr.getRequestHeader('Location'), '');
+    assert.equal(xhr.responseText, "Hello World");
+    sys.puts("done");
+  }
+};
+
+try {
+  xhr.open("GET", "http://localhost:8000/redirectingResource");
+  xhr.send();
+} catch(e) {
+  console.log("ERROR: Exception raised", e);
+}
diff --git a/helloworld/node_modules/xmlhttprequest-ssl/tests/test-redirect-303.js b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-redirect-303.js
new file mode 100755
index 0000000..60d9343
--- /dev/null
+++ b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-redirect-303.js
@@ -0,0 +1,41 @@
+var sys = require("util")
+  , assert = require("assert")
+  , XMLHttpRequest = require("../lib/XMLHttpRequest").XMLHttpRequest
+  , xhr = new XMLHttpRequest()
+  , http = require("http");
+
+// Test server
+var server = http.createServer(function (req, res) {
+  if (req.url === '/redirectingResource') {
+    res.writeHead(303, {'Location': 'http://localhost:8000/'});
+    res.end();
+    return;
+  }
+
+  var body = "Hello World";
+  res.writeHead(200, {
+    "Content-Type": "text/plain",
+    "Content-Length": Buffer.byteLength(body),
+    "Date": "Thu, 30 Aug 2012 18:17:53 GMT",
+    "Connection": "close"
+  });
+  res.write("Hello World");
+  res.end();
+
+  this.close();
+}).listen(8000);
+
+xhr.onreadystatechange = function() {
+  if (this.readyState == 4) {
+    assert.equal(xhr.getRequestHeader('Location'), '');
+    assert.equal(xhr.responseText, "Hello World");
+    sys.puts("done");
+  }
+};
+
+try {
+  xhr.open("POST", "http://localhost:8000/redirectingResource");
+  xhr.send();
+} catch(e) {
+  console.log("ERROR: Exception raised", e);
+}
diff --git a/helloworld/node_modules/xmlhttprequest-ssl/tests/test-redirect-307.js b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-redirect-307.js
new file mode 100755
index 0000000..3abc906
--- /dev/null
+++ b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-redirect-307.js
@@ -0,0 +1,43 @@
+var sys = require("util")
+  , assert = require("assert")
+  , XMLHttpRequest = require("../lib/XMLHttpRequest").XMLHttpRequest
+  , xhr = new XMLHttpRequest()
+  , http = require("http");
+
+// Test server
+var server = http.createServer(function (req, res) {
+  if (req.url === '/redirectingResource') {
+    res.writeHead(307, {'Location': 'http://localhost:8000/'});
+    res.end();
+    return;
+  }
+
+  assert.equal(req.method, 'POST');
+
+  var body = "Hello World";
+  res.writeHead(200, {
+    "Content-Type": "text/plain",
+    "Content-Length": Buffer.byteLength(body),
+    "Date": "Thu, 30 Aug 2012 18:17:53 GMT",
+    "Connection": "close"
+  });
+  res.write("Hello World");
+  res.end();
+
+  this.close();
+}).listen(8000);
+
+xhr.onreadystatechange = function() {
+  if (this.readyState == 4) {
+    assert.equal(xhr.getRequestHeader('Location'), '');
+    assert.equal(xhr.responseText, "Hello World");
+    sys.puts("done");
+  }
+};
+
+try {
+  xhr.open("POST", "http://localhost:8000/redirectingResource");
+  xhr.send();
+} catch(e) {
+  console.log("ERROR: Exception raised", e);
+}
diff --git a/helloworld/node_modules/xmlhttprequest-ssl/tests/test-request-methods.js b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-request-methods.js
new file mode 100755
index 0000000..fa1b1be
--- /dev/null
+++ b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-request-methods.js
@@ -0,0 +1,62 @@
+var sys = require("util")
+  , assert = require("assert")
+  , XMLHttpRequest = require("../lib/XMLHttpRequest").XMLHttpRequest
+  , http = require("http")
+  , xhr;
+
+// Test server
+var server = http.createServer(function (req, res) {
+  // Check request method and URL
+  assert.equal(methods[curMethod], req.method);
+  assert.equal("/" + methods[curMethod], req.url);
+
+  var body = (req.method != "HEAD" ? "Hello World" : "");
+
+  res.writeHead(200, {
+    "Content-Type": "text/plain",
+    "Content-Length": Buffer.byteLength(body)
+  });
+  // HEAD has no body
+  if (req.method != "HEAD") {
+    res.write(body);
+  }
+  res.end();
+
+  if (curMethod == methods.length - 1) {
+    this.close();
+    sys.puts("done");
+  }
+}).listen(8000);
+
+// Test standard methods
+var methods = ["GET", "POST", "HEAD", "PUT", "DELETE"];
+var curMethod = 0;
+
+function start(method) {
+  // Reset each time
+  xhr = new XMLHttpRequest();
+
+  xhr.onreadystatechange = function() {
+    if (this.readyState == 4) {
+      if (method == "HEAD") {
+        assert.equal("", this.responseText);
+      } else {
+        assert.equal("Hello World", this.responseText);
+      }
+
+      curMethod++;
+
+      if (curMethod < methods.length) {
+        sys.puts("Testing " + methods[curMethod]);
+        start(methods[curMethod]);
+      }
+    }
+  };
+
+  var url = "http://localhost:8000/" + method;
+  xhr.open(method, url);
+  xhr.send();
+}
+
+sys.puts("Testing " + methods[curMethod]);
+start(methods[curMethod]);
diff --git a/helloworld/node_modules/xmlhttprequest-ssl/tests/test-request-protocols.js b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-request-protocols.js
new file mode 100755
index 0000000..543917d
--- /dev/null
+++ b/helloworld/node_modules/xmlhttprequest-ssl/tests/test-request-protocols.js
@@ -0,0 +1,32 @@
+var sys = require("util")
+  , assert = require("assert")
+  , XMLHttpRequest = require("../lib/XMLHttpRequest").XMLHttpRequest
+  , xhr;
+
+xhr = new XMLHttpRequest();
+
+xhr.onreadystatechange = function() {
+  if (this.readyState == 4) {
+    assert.equal("Hello World", this.responseText);
+    runSync();
+  }
+};
+
+// Async
+var url = "file://" + __dirname + "/testdata.txt";
+xhr.open("GET", url);
+xhr.send();
+
+// Sync
+var runSync = function() {
+  xhr = new XMLHttpRequest();
+
+  xhr.onreadystatechange = function() {
+    if (this.readyState == 4) {
+      assert.equal("Hello World", this.responseText);
+      sys.puts("done");
+    }
+  };
+  xhr.open("GET", url, false);
+  xhr.send();
+}
diff --git a/helloworld/node_modules/xmlhttprequest-ssl/tests/testdata.txt b/helloworld/node_modules/xmlhttprequest-ssl/tests/testdata.txt
new file mode 100755
index 0000000..5e1c309
--- /dev/null
+++ b/helloworld/node_modules/xmlhttprequest-ssl/tests/testdata.txt
@@ -0,0 +1 @@
+Hello World
\ No newline at end of file
diff --git a/helloworld/node_modules/y18n/LICENSE b/helloworld/node_modules/y18n/LICENSE
new file mode 100755
index 0000000..3c157f0
--- /dev/null
+++ b/helloworld/node_modules/y18n/LICENSE
@@ -0,0 +1,13 @@
+Copyright (c) 2015, Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any purpose
+with or without fee is hereby granted, provided that the above copyright notice
+and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
+THIS SOFTWARE.
diff --git a/helloworld/node_modules/y18n/README.md b/helloworld/node_modules/y18n/README.md
new file mode 100755
index 0000000..9859458
--- /dev/null
+++ b/helloworld/node_modules/y18n/README.md
@@ -0,0 +1,91 @@
+# y18n
+
+[![Build Status][travis-image]][travis-url]
+[![Coverage Status][coveralls-image]][coveralls-url]
+[![NPM version][npm-image]][npm-url]
+[![js-standard-style][standard-image]][standard-url]
+
+The bare-bones internationalization library used by yargs.
+
+Inspired by [i18n](https://www.npmjs.com/package/i18n).
+
+## Examples
+
+_simple string translation:_
+
+```js
+var __ = require('y18n').__
+
+console.log(__('my awesome string %s', 'foo'))
+```
+
+output:
+
+`my awesome string foo`
+
+_pluralization support:_
+
+```js
+var __n = require('y18n').__n
+
+console.log(__n('one fish %s', '%d fishes %s', 2, 'foo'))
+```
+
+output:
+
+`2 fishes foo`
+
+## JSON Language Files
+
+The JSON language files should be stored in a `./locales` folder.
+File names correspond to locales, e.g., `en.json`, `pirate.json`.
+
+When strings are observed for the first time they will be
+added to the JSON file corresponding to the current locale.
+
+## Methods
+
+### require('y18n')(config)
+
+Create an instance of y18n with the config provided, options include:
+
+* `directory`: the locale directory, default `./locales`.
+* `updateFiles`: should newly observed strings be updated in file, default `true`.
+* `locale`: what locale should be used.
+* `fallbackToLanguage`: should fallback to a language-only file (e.g. `en.json`)
+  be allowed if a file matching the locale does not exist (e.g. `en_US.json`),
+  default `true`.
+
+### y18n.\_\_(str, arg, arg, arg)
+
+Print a localized string, `%s` will be replaced with `arg`s.
+
+### y18n.\_\_n(singularString, pluralString, count, arg, arg, arg)
+
+Print a localized string with appropriate pluralization. If `%d` is provided
+in the string, the `count` will replace this placeholder.
+
+### y18n.setLocale(str)
+
+Set the current locale being used.
+
+### y18n.getLocale()
+
+What locale is currently being used?
+
+### y18n.updateLocale(obj)
+
+Update the current locale with the key value pairs in `obj`.
+
+## License
+
+ISC
+
+[travis-url]: https://travis-ci.org/yargs/y18n
+[travis-image]: https://img.shields.io/travis/yargs/y18n.svg
+[coveralls-url]: https://coveralls.io/github/yargs/y18n
+[coveralls-image]: https://img.shields.io/coveralls/yargs/y18n.svg
+[npm-url]: https://npmjs.org/package/y18n
+[npm-image]: https://img.shields.io/npm/v/y18n.svg
+[standard-image]: https://img.shields.io/badge/code%20style-standard-brightgreen.svg
+[standard-url]: https://github.com/feross/standard
diff --git a/helloworld/node_modules/y18n/index.js b/helloworld/node_modules/y18n/index.js
new file mode 100755
index 0000000..91b159e
--- /dev/null
+++ b/helloworld/node_modules/y18n/index.js
@@ -0,0 +1,172 @@
+var fs = require('fs')
+var path = require('path')
+var util = require('util')
+
+function Y18N (opts) {
+  // configurable options.
+  opts = opts || {}
+  this.directory = opts.directory || './locales'
+  this.updateFiles = typeof opts.updateFiles === 'boolean' ? opts.updateFiles : true
+  this.locale = opts.locale || 'en'
+  this.fallbackToLanguage = typeof opts.fallbackToLanguage === 'boolean' ? opts.fallbackToLanguage : true
+
+  // internal stuff.
+  this.cache = {}
+  this.writeQueue = []
+}
+
+Y18N.prototype.__ = function () {
+  var args = Array.prototype.slice.call(arguments)
+  var str = args.shift()
+  var cb = function () {} // start with noop.
+
+  if (typeof args[args.length - 1] === 'function') cb = args.pop()
+  cb = cb || function () {} // noop.
+
+  if (!this.cache[this.locale]) this._readLocaleFile()
+
+  // we've observed a new string, update the language file.
+  if (!this.cache[this.locale][str] && this.updateFiles) {
+    this.cache[this.locale][str] = str
+
+    // include the current directory and locale,
+    // since these values could change before the
+    // write is performed.
+    this._enqueueWrite([this.directory, this.locale, cb])
+  } else {
+    cb()
+  }
+
+  return util.format.apply(util, [this.cache[this.locale][str] || str].concat(args))
+}
+
+Y18N.prototype._enqueueWrite = function (work) {
+  this.writeQueue.push(work)
+  if (this.writeQueue.length === 1) this._processWriteQueue()
+}
+
+Y18N.prototype._processWriteQueue = function () {
+  var _this = this
+  var work = this.writeQueue[0]
+
+  // destructure the enqueued work.
+  var directory = work[0]
+  var locale = work[1]
+  var cb = work[2]
+
+  var languageFile = this._resolveLocaleFile(directory, locale)
+  var serializedLocale = JSON.stringify(this.cache[locale], null, 2)
+
+  fs.writeFile(languageFile, serializedLocale, 'utf-8', function (err) {
+    _this.writeQueue.shift()
+    if (_this.writeQueue.length > 0) _this._processWriteQueue()
+    cb(err)
+  })
+}
+
+Y18N.prototype._readLocaleFile = function () {
+  var localeLookup = {}
+  var languageFile = this._resolveLocaleFile(this.directory, this.locale)
+
+  try {
+    localeLookup = JSON.parse(fs.readFileSync(languageFile, 'utf-8'))
+  } catch (err) {
+    if (err instanceof SyntaxError) {
+      err.message = 'syntax error in ' + languageFile
+    }
+
+    if (err.code === 'ENOENT') localeLookup = {}
+    else throw err
+  }
+
+  this.cache[this.locale] = localeLookup
+}
+
+Y18N.prototype._resolveLocaleFile = function (directory, locale) {
+  var file = path.resolve(directory, './', locale + '.json')
+  if (this.fallbackToLanguage && !this._fileExistsSync(file) && ~locale.lastIndexOf('_')) {
+    // attempt fallback to language only
+    var languageFile = path.resolve(directory, './', locale.split('_')[0] + '.json')
+    if (this._fileExistsSync(languageFile)) file = languageFile
+  }
+  return file
+}
+
+// this only exists because fs.existsSync() "will be deprecated"
+// see https://nodejs.org/api/fs.html#fs_fs_existssync_path
+Y18N.prototype._fileExistsSync = function (file) {
+  try {
+    return fs.statSync(file).isFile()
+  } catch (err) {
+    return false
+  }
+}
+
+Y18N.prototype.__n = function () {
+  var args = Array.prototype.slice.call(arguments)
+  var singular = args.shift()
+  var plural = args.shift()
+  var quantity = args.shift()
+
+  var cb = function () {} // start with noop.
+  if (typeof args[args.length - 1] === 'function') cb = args.pop()
+
+  if (!this.cache[this.locale]) this._readLocaleFile()
+
+  var str = quantity === 1 ? singular : plural
+  if (this.cache[this.locale][singular]) {
+    str = this.cache[this.locale][singular][quantity === 1 ? 'one' : 'other']
+  }
+
+  // we've observed a new string, update the language file.
+  if (!this.cache[this.locale][singular] && this.updateFiles) {
+    this.cache[this.locale][singular] = {
+      one: singular,
+      other: plural
+    }
+
+    // include the current directory and locale,
+    // since these values could change before the
+    // write is performed.
+    this._enqueueWrite([this.directory, this.locale, cb])
+  } else {
+    cb()
+  }
+
+  // if a %d placeholder is provided, add quantity
+  // to the arguments expanded by util.format.
+  var values = [str]
+  if (~str.indexOf('%d')) values.push(quantity)
+
+  return util.format.apply(util, values.concat(args))
+}
+
+Y18N.prototype.setLocale = function (locale) {
+  this.locale = locale
+}
+
+Y18N.prototype.getLocale = function () {
+  return this.locale
+}
+
+Y18N.prototype.updateLocale = function (obj) {
+  if (!this.cache[this.locale]) this._readLocaleFile()
+
+  for (var key in obj) {
+    this.cache[this.locale][key] = obj[key]
+  }
+}
+
+module.exports = function (opts) {
+  var y18n = new Y18N(opts)
+
+  // bind all functions to y18n, so that
+  // they can be used in isolation.
+  for (var key in y18n) {
+    if (typeof y18n[key] === 'function') {
+      y18n[key] = y18n[key].bind(y18n)
+    }
+  }
+
+  return y18n
+}
diff --git a/helloworld/node_modules/yargs-parser/CHANGELOG.md b/helloworld/node_modules/yargs-parser/CHANGELOG.md
new file mode 100755
index 0000000..bf172df
--- /dev/null
+++ b/helloworld/node_modules/yargs-parser/CHANGELOG.md
@@ -0,0 +1,154 @@
+# Change Log
+
+All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
+
+<a name="4.2.1"></a>
+## [4.2.1](https://github.com/yargs/yargs-parser/compare/v4.2.0...v4.2.1) (2017-01-02)
+
+
+### Bug Fixes
+
+* flatten/duplicate regression ([#75](https://github.com/yargs/yargs-parser/issues/75)) ([68d68a0](https://github.com/yargs/yargs-parser/commit/68d68a0))
+
+
+
+<a name="4.2.0"></a>
+# [4.2.0](https://github.com/yargs/yargs-parser/compare/v4.1.0...v4.2.0) (2016-12-01)
+
+
+### Bug Fixes
+
+* inner objects in configs had their keys appended to top-level key when dot-notation was disabled ([#72](https://github.com/yargs/yargs-parser/issues/72)) ([0b1b5f9](https://github.com/yargs/yargs-parser/commit/0b1b5f9))
+
+
+### Features
+
+* allow multiple arrays to be provided, rather than always combining ([#71](https://github.com/yargs/yargs-parser/issues/71)) ([0f0fb2d](https://github.com/yargs/yargs-parser/commit/0f0fb2d))
+
+
+
+<a name="4.1.0"></a>
+# [4.1.0](https://github.com/yargs/yargs-parser/compare/v4.0.2...v4.1.0) (2016-11-07)
+
+
+### Features
+
+* apply coercions to default options ([#65](https://github.com/yargs/yargs-parser/issues/65)) ([c79052b](https://github.com/yargs/yargs-parser/commit/c79052b))
+* handle dot notation boolean options ([#63](https://github.com/yargs/yargs-parser/issues/63)) ([02c3545](https://github.com/yargs/yargs-parser/commit/02c3545))
+
+
+
+<a name="4.0.2"></a>
+## [4.0.2](https://github.com/yargs/yargs-parser/compare/v4.0.1...v4.0.2) (2016-09-30)
+
+
+### Bug Fixes
+
+* whoops, let's make the assign not change the Object key order ([29d069a](https://github.com/yargs/yargs-parser/commit/29d069a))
+
+
+
+<a name="4.0.1"></a>
+## [4.0.1](https://github.com/yargs/yargs-parser/compare/v4.0.0...v4.0.1) (2016-09-30)
+
+
+### Bug Fixes
+
+* lodash.assign was deprecated ([#59](https://github.com/yargs/yargs-parser/issues/59)) ([5e7eb11](https://github.com/yargs/yargs-parser/commit/5e7eb11))
+
+
+
+<a name="4.0.0"></a>
+# [4.0.0](https://github.com/yargs/yargs-parser/compare/v3.2.0...v4.0.0) (2016-09-26)
+
+
+### Bug Fixes
+
+* coerce should be applied to the final objects and arrays created ([#57](https://github.com/yargs/yargs-parser/issues/57)) ([4ca69da](https://github.com/yargs/yargs-parser/commit/4ca69da))
+
+
+### BREAKING CHANGES
+
+* coerce is no longer applied to individual arguments in an implicit array.
+
+
+
+<a name="3.2.0"></a>
+# [3.2.0](https://github.com/yargs/yargs-parser/compare/v3.1.0...v3.2.0) (2016-08-13)
+
+
+### Features
+
+* coerce full array instead of each element ([#51](https://github.com/yargs/yargs-parser/issues/51)) ([cc4dc56](https://github.com/yargs/yargs-parser/commit/cc4dc56))
+
+
+
+<a name="3.1.0"></a>
+# [3.1.0](https://github.com/yargs/yargs-parser/compare/v3.0.0...v3.1.0) (2016-08-09)
+
+
+### Bug Fixes
+
+* address pkgConf parsing bug outlined in [#37](https://github.com/yargs/yargs-parser/issues/37) ([#45](https://github.com/yargs/yargs-parser/issues/45)) ([be76ee6](https://github.com/yargs/yargs-parser/commit/be76ee6))
+* better parsing of negative values ([#44](https://github.com/yargs/yargs-parser/issues/44)) ([2e43692](https://github.com/yargs/yargs-parser/commit/2e43692))
+* check aliases when guessing defaults for arguments fixes [#41](https://github.com/yargs/yargs-parser/issues/41) ([#43](https://github.com/yargs/yargs-parser/issues/43)) ([f3e4616](https://github.com/yargs/yargs-parser/commit/f3e4616))
+
+
+### Features
+
+* added coerce option, for providing specialized argument parsing ([#42](https://github.com/yargs/yargs-parser/issues/42)) ([7b49cd2](https://github.com/yargs/yargs-parser/commit/7b49cd2))
+
+
+
+<a name="3.0.0"></a>
+# [3.0.0](https://github.com/yargs/yargs-parser/compare/v2.4.1...v3.0.0) (2016-08-07)
+
+
+### Bug Fixes
+
+* parsing issue with numeric character in group of options ([#19](https://github.com/yargs/yargs-parser/issues/19)) ([f743236](https://github.com/yargs/yargs-parser/commit/f743236))
+* upgraded lodash.assign ([5d7fdf4](https://github.com/yargs/yargs-parser/commit/5d7fdf4))
+
+### BREAKING CHANGES
+
+* subtle change to how values are parsed in a group of single-character arguments.
+* _first released in 3.1.0, better handling of negative values should be considered a breaking change._
+
+
+
+<a name="2.4.1"></a>
+## [2.4.1](https://github.com/yargs/yargs-parser/compare/v2.4.0...v2.4.1) (2016-07-16)
+
+
+### Bug Fixes
+
+* **count:** do not increment a default value ([#39](https://github.com/yargs/yargs-parser/issues/39)) ([b04a189](https://github.com/yargs/yargs-parser/commit/b04a189))
+
+
+
+<a name="2.4.0"></a>
+# [2.4.0](https://github.com/yargs/yargs-parser/compare/v2.3.0...v2.4.0) (2016-04-11)
+
+
+### Features
+
+* **environment:** Support nested options in environment variables ([#26](https://github.com/yargs/yargs-parser/issues/26)) thanks [@elas7](https://github.com/elas7) \o/ ([020778b](https://github.com/yargs/yargs-parser/commit/020778b))
+
+
+
+<a name="2.3.0"></a>
+# [2.3.0](https://github.com/yargs/yargs-parser/compare/v2.2.0...v2.3.0) (2016-04-09)
+
+
+### Bug Fixes
+
+* **boolean:** fix for boolean options with non boolean defaults (#20) ([2dbe86b](https://github.com/yargs/yargs-parser/commit/2dbe86b)), closes [(#20](https://github.com/(/issues/20)
+* **package:** remove tests from tarball ([0353c0d](https://github.com/yargs/yargs-parser/commit/0353c0d))
+* **parsing:** handle calling short option with an empty string as the next value. ([a867165](https://github.com/yargs/yargs-parser/commit/a867165))
+* boolean flag when next value contains the strings 'true' or 'false'. ([69941a6](https://github.com/yargs/yargs-parser/commit/69941a6))
+* update dependencies; add standard-version bin for next release (#24) ([822d9d5](https://github.com/yargs/yargs-parser/commit/822d9d5))
+
+### Features
+
+* **configuration:** Allow to pass configuration objects to yargs-parser ([0780900](https://github.com/yargs/yargs-parser/commit/0780900))
+* **normalize:** allow normalize to work with arrays ([e0eaa1a](https://github.com/yargs/yargs-parser/commit/e0eaa1a))
diff --git a/helloworld/node_modules/yargs-parser/LICENSE.txt b/helloworld/node_modules/yargs-parser/LICENSE.txt
new file mode 100755
index 0000000..836440b
--- /dev/null
+++ b/helloworld/node_modules/yargs-parser/LICENSE.txt
@@ -0,0 +1,14 @@
+Copyright (c) 2016, Contributors
+
+Permission to use, copy, modify, and/or distribute this software
+for any purpose with or without fee is hereby granted, provided
+that the above copyright notice and this permission notice
+appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE
+LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
+OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/helloworld/node_modules/yargs-parser/README.md b/helloworld/node_modules/yargs-parser/README.md
new file mode 100755
index 0000000..cf45174
--- /dev/null
+++ b/helloworld/node_modules/yargs-parser/README.md
@@ -0,0 +1,257 @@
+# yargs-parser
+
+[![Build Status](https://travis-ci.org/yargs/yargs-parser.png)](https://travis-ci.org/yargs/yargs-parser)
+[![Coverage Status](https://coveralls.io/repos/yargs/yargs-parser/badge.svg?branch=)](https://coveralls.io/r/yargs/yargs-parser?branch=master)
+[![NPM version](https://img.shields.io/npm/v/yargs-parser.svg)](https://www.npmjs.com/package/yargs-parser)
+[![Windows Tests](https://img.shields.io/appveyor/ci/bcoe/yargs-parser/master.svg?label=Windows%20Tests)](https://ci.appveyor.com/project/bcoe/yargs-parser)
+[![Standard Version](https://img.shields.io/badge/release-standard%20version-brightgreen.svg)](https://github.com/conventional-changelog/standard-version)
+
+
+The mighty option parser used by [yargs](https://github.com/yargs/yargs).
+
+visit the [yargs website](http://yargs.js.org/) for more examples, and thorough usage instructions.
+
+<img width="250" src="yargs-logo.png">
+
+## Example
+
+```sh
+npm i yargs-parser --save
+```
+
+```js
+var argv = require('yargs-parser')(process.argv.slice(2))
+console.log(argv)
+```
+
+```sh
+node example.js --foo=33 --bar hello
+{ _: [], foo: 33, bar: 'hello' }
+```
+
+_or parse a string!_
+
+```js
+var argv = require('./')('--foo=99 --bar=33')
+console.log(argv)
+```
+
+```sh
+{ _: [], foo: 99, bar: 33 }
+```
+
+Convert an array of mixed types before passing to `yargs-parser`:
+
+```js
+var parse = require('yargs-parser')
+parse(['-f', 11, '--zoom', 55].join(' '))   // <-- array to string
+parse(['-f', 11, '--zoom', 55].map(String)) // <-- array of strings
+```
+
+## API
+
+### require('yargs-parser')(args, opts={})
+
+Parses command line arguments returning a simple mapping of keys and values.
+
+**expects:**
+
+* `args`: a string or array of strings representing the options to parse.
+* `opts`: provide a set of hints indicating how `args` should be parsed:
+  * `opts.alias`: an object representing the set of aliases for a key: `{alias: {foo: ['f']}}`.
+  * `opts.array`: indicate that keys should be parsed as an array: `{array: ['foo', 'bar']}`.
+  * `opts.boolean`: arguments should be parsed as booleans: `{boolean: ['x', 'y']}`.
+  * `opts.config`: indicate a key that represents a path to a configuration file (this file will be loaded and parsed).
+  * `opts.coerce`: provide a custom synchronous function that returns a coerced value from the argument provided
+    (or throws an error), e.g. `{coerce: {foo: function (arg) {return modifiedArg}}}`.
+  * `opts.count`: indicate a key that should be used as a counter, e.g., `-vvv` = `{v: 3}`.
+  * `opts.default`: provide default values for keys: `{default: {x: 33, y: 'hello world!'}}`.
+  * `opts.envPrefix`: environment variables (`process.env`) with the prefix provided should be parsed.
+  * `opts.narg`: specify that a key requires `n` arguments: `{narg: {x: 2}}`.
+  * `opts.normalize`: `path.normalize()` will be applied to values set to this key.
+  * `opts.string`: keys should be treated as strings (even if they resemble a number `-x 33`).
+  * `opts.configuration`: provide configuration options to the yargs-parser (see: [configuration](#configuration)).
+  * `opts.number`: keys should be treated as numbers.
+
+**returns:**
+
+* `obj`: an object representing the parsed value of `args`
+  * `key/value`: key value pairs for each argument and their aliases.
+  * `_`: an array representing the positional arguments.
+
+### require('yargs-parser').detailed(args, opts={})
+
+Parses a command line string, returning detailed information required by the
+yargs engine.
+
+**expects:**
+
+* `args`: a string or array of strings representing options to parse.
+* `opts`: provide a set of hints indicating how `args`, inputs are identical to `require('yargs-parser')(args, opts={})`.
+
+**returns:**
+
+* `argv`: an object representing the parsed value of `args`
+  * `key/value`: key value pairs for each argument and their aliases.
+  * `_`: an array representing the positional arguments.
+* `error`: populated with an error object if an exception occurred during parsing.
+* `aliases`: the inferred list of aliases built by combining lists in `opts.alias`.
+* `newAliases`: any new aliases added via camel-case expansion.
+* `configuration`: the configuration loaded from the `yargs` stanza in package.json.
+
+<a name="configuration"></a>
+### Configuration
+
+The yargs-parser applies several automated transformations on the keys provided
+in `args`. These features can be turned on and off using the `configuration` field
+of `opts`.
+
+```js
+var parsed = parser(['--no-dice'], {
+  configuration: {
+    'boolean-negation': false
+  }
+})
+```
+
+### short option groups
+
+* default: `true`.
+* key: `short-option-groups`.
+
+Should a group of short-options be treated as boolean flags?
+
+```sh
+node example.js -abc
+{ _: [], a: true, b: true, c: true }
+```
+
+_if disabled:_
+
+```sh
+node example.js -abc
+{ _: [], abc: true }
+```
+
+### camel-case expansion
+
+* default: `true`.
+* key: `camel-case-expansion`.
+
+Should hyphenated arguments be expanded into camel-case aliases?
+
+```sh
+node example.js --foo-bar
+{ _: [], 'foo-bar': true, fooBar: true }
+```
+
+_if disabled:_
+
+```sh
+node example.js --foo-bar
+{ _: [], 'foo-bar': true }
+```
+
+### dot-notation
+
+* default: `true`
+* key: `dot-notation`
+
+Should keys that contain `.` be treated as objects?
+
+```sh
+node example.js --foo.bar
+{ _: [], foo: { bar: true } }
+```
+
+_if disabled:_
+
+```sh
+node example.js --foo.bar
+{ _: [], "foo.bar": true }
+```
+
+### parse numbers
+
+* default: `true`
+* key: `parse-numbers`
+
+Should keys that look like numbers be treated as such?
+
+```sh
+node example.js --foo=99.3
+{ _: [], foo: 99.3 }
+```
+
+_if disabled:_
+
+```sh
+node example.js --foo=99.3
+{ _: [], foo: "99.3" }
+```
+
+### boolean negation
+
+* default: `true`
+* key: `boolean-negation`
+
+Should variables prefixed with `--no` be treated as negations?
+
+```sh
+node example.js --no-foo
+{ _: [], foo: false }
+```
+
+_if disabled:_
+
+```sh
+node example.js --no-foo
+{ _: [], "no-foo": true }
+```
+
+### duplicate arguments array
+
+* default: `true`
+* key: `duplicate-arguments-array`
+
+Should arguments be coerced into an array when duplicated:
+
+```sh
+node example.js -x 1 -x 2
+{ _: [], x: [1, 2] }
+```
+
+_if disabled:_
+
+```sh
+node example.js -x 1 -x 2
+{ _: [], x: 2 }
+```
+
+### flatten duplicate arrays
+
+* default: `true`
+* key: `flatten-duplicate-arrays`
+
+Should array arguments be coerced into a single array when duplicated:
+
+```sh
+node example.js -x 1 2 -x 3 4
+{ _: [], x: [1, 2, 3, 4] }
+```
+
+_if disabled:_
+
+```sh
+node example.js -x 1 2 -x 3 4
+{ _: [], x: [[1, 2], [3, 4]] }
+```
+
+## Special Thanks
+
+The yargs project evolves from optimist and minimist. It owes its
+existence to a lot of James Halliday's hard work. Thanks [substack](https://github.com/substack) **beep** **boop** \o/
+
+## License
+
+ISC
diff --git a/helloworld/node_modules/yargs-parser/index.js b/helloworld/node_modules/yargs-parser/index.js
new file mode 100755
index 0000000..1a04d55
--- /dev/null
+++ b/helloworld/node_modules/yargs-parser/index.js
@@ -0,0 +1,759 @@
+var camelCase = require('camelcase')
+var path = require('path')
+var tokenizeArgString = require('./lib/tokenize-arg-string')
+var util = require('util')
+
+function parse (args, opts) {
+  if (!opts) opts = {}
+  // allow a string argument to be passed in rather
+  // than an argv array.
+  args = tokenizeArgString(args)
+  // aliases might have transitive relationships, normalize this.
+  var aliases = combineAliases(opts.alias || {})
+  var configuration = assign({
+    'short-option-groups': true,
+    'camel-case-expansion': true,
+    'dot-notation': true,
+    'parse-numbers': true,
+    'boolean-negation': true,
+    'duplicate-arguments-array': true,
+    'flatten-duplicate-arrays': true
+  }, opts.configuration)
+  var defaults = opts.default || {}
+  var configObjects = opts.configObjects || []
+  var envPrefix = opts.envPrefix
+  var newAliases = {}
+  // allow a i18n handler to be passed in, default to a fake one (util.format).
+  var __ = opts.__ || function (str) {
+    return util.format.apply(util, Array.prototype.slice.call(arguments))
+  }
+  var error = null
+  var flags = {
+    aliases: {},
+    arrays: {},
+    bools: {},
+    strings: {},
+    numbers: {},
+    counts: {},
+    normalize: {},
+    configs: {},
+    defaulted: {},
+    nargs: {},
+    coercions: {}
+  }
+  var negative = /^-[0-9]+(\.[0-9]+)?/
+
+  ;[].concat(opts.array).filter(Boolean).forEach(function (key) {
+    flags.arrays[key] = true
+  })
+
+  ;[].concat(opts.boolean).filter(Boolean).forEach(function (key) {
+    flags.bools[key] = true
+  })
+
+  ;[].concat(opts.string).filter(Boolean).forEach(function (key) {
+    flags.strings[key] = true
+  })
+
+  ;[].concat(opts.number).filter(Boolean).forEach(function (key) {
+    flags.numbers[key] = true
+  })
+
+  ;[].concat(opts.count).filter(Boolean).forEach(function (key) {
+    flags.counts[key] = true
+  })
+
+  ;[].concat(opts.normalize).filter(Boolean).forEach(function (key) {
+    flags.normalize[key] = true
+  })
+
+  Object.keys(opts.narg || {}).forEach(function (k) {
+    flags.nargs[k] = opts.narg[k]
+  })
+
+  Object.keys(opts.coerce || {}).forEach(function (k) {
+    flags.coercions[k] = opts.coerce[k]
+  })
+
+  if (Array.isArray(opts.config) || typeof opts.config === 'string') {
+    ;[].concat(opts.config).filter(Boolean).forEach(function (key) {
+      flags.configs[key] = true
+    })
+  } else {
+    Object.keys(opts.config || {}).forEach(function (k) {
+      flags.configs[k] = opts.config[k]
+    })
+  }
+
+  // create a lookup table that takes into account all
+  // combinations of aliases: {f: ['foo'], foo: ['f']}
+  extendAliases(opts.key, aliases, opts.default, flags.arrays)
+
+  // apply default values to all aliases.
+  Object.keys(defaults).forEach(function (key) {
+    (flags.aliases[key] || []).forEach(function (alias) {
+      defaults[alias] = defaults[key]
+    })
+  })
+
+  var argv = { _: [] }
+
+  Object.keys(flags.bools).forEach(function (key) {
+    setArg(key, !(key in defaults) ? false : defaults[key])
+    setDefaulted(key)
+  })
+
+  var notFlags = []
+  if (args.indexOf('--') !== -1) {
+    notFlags = args.slice(args.indexOf('--') + 1)
+    args = args.slice(0, args.indexOf('--'))
+  }
+
+  for (var i = 0; i < args.length; i++) {
+    var arg = args[i]
+    var broken
+    var key
+    var letters
+    var m
+    var next
+    var value
+
+    // -- seperated by =
+    if (arg.match(/^--.+=/) || (
+      !configuration['short-option-groups'] && arg.match(/^-.+=/)
+    )) {
+      // Using [\s\S] instead of . because js doesn't support the
+      // 'dotall' regex modifier. See:
+      // http://stackoverflow.com/a/1068308/13216
+      m = arg.match(/^--?([^=]+)=([\s\S]*)$/)
+
+      // nargs format = '--f=monkey washing cat'
+      if (checkAllAliases(m[1], flags.nargs)) {
+        args.splice(i + 1, 0, m[2])
+        i = eatNargs(i, m[1], args)
+      // arrays format = '--f=a b c'
+      } else if (checkAllAliases(m[1], flags.arrays) && args.length > i + 1) {
+        args.splice(i + 1, 0, m[2])
+        i = eatArray(i, m[1], args)
+      } else {
+        setArg(m[1], m[2])
+      }
+    } else if (arg.match(/^--no-.+/) && configuration['boolean-negation']) {
+      key = arg.match(/^--no-(.+)/)[1]
+      setArg(key, false)
+
+    // -- seperated by space.
+    } else if (arg.match(/^--.+/) || (
+      !configuration['short-option-groups'] && arg.match(/^-.+/)
+    )) {
+      key = arg.match(/^--?(.+)/)[1]
+
+      // nargs format = '--foo a b c'
+      if (checkAllAliases(key, flags.nargs)) {
+        i = eatNargs(i, key, args)
+      // array format = '--foo a b c'
+      } else if (checkAllAliases(key, flags.arrays) && args.length > i + 1) {
+        i = eatArray(i, key, args)
+      } else {
+        next = args[i + 1]
+
+        if (next !== undefined && (!next.match(/^-/) ||
+          next.match(negative)) &&
+          !checkAllAliases(key, flags.bools) &&
+          !checkAllAliases(key, flags.counts)) {
+          setArg(key, next)
+          i++
+        } else if (/^(true|false)$/.test(next)) {
+          setArg(key, next)
+          i++
+        } else {
+          setArg(key, defaultForType(guessType(key, flags)))
+        }
+      }
+
+    // dot-notation flag seperated by '='.
+    } else if (arg.match(/^-.\..+=/)) {
+      m = arg.match(/^-([^=]+)=([\s\S]*)$/)
+      setArg(m[1], m[2])
+
+    // dot-notation flag seperated by space.
+    } else if (arg.match(/^-.\..+/)) {
+      next = args[i + 1]
+      key = arg.match(/^-(.\..+)/)[1]
+
+      if (next !== undefined && !next.match(/^-/) &&
+        !checkAllAliases(key, flags.bools) &&
+        !checkAllAliases(key, flags.counts)) {
+        setArg(key, next)
+        i++
+      } else {
+        setArg(key, defaultForType(guessType(key, flags)))
+      }
+    } else if (arg.match(/^-[^-]+/) && !arg.match(negative)) {
+      letters = arg.slice(1, -1).split('')
+      broken = false
+
+      for (var j = 0; j < letters.length; j++) {
+        next = arg.slice(j + 2)
+
+        if (letters[j + 1] && letters[j + 1] === '=') {
+          value = arg.slice(j + 3)
+          key = letters[j]
+
+          // nargs format = '-f=monkey washing cat'
+          if (checkAllAliases(key, flags.nargs)) {
+            args.splice(i + 1, 0, value)
+            i = eatNargs(i, key, args)
+          // array format = '-f=a b c'
+          } else if (checkAllAliases(key, flags.arrays) && args.length > i + 1) {
+            args.splice(i + 1, 0, value)
+            i = eatArray(i, key, args)
+          } else {
+            setArg(key, value)
+          }
+
+          broken = true
+          break
+        }
+
+        if (next === '-') {
+          setArg(letters[j], next)
+          continue
+        }
+
+        // current letter is an alphabetic character and next value is a number
+        if (/[A-Za-z]/.test(letters[j]) &&
+          /^-?\d+(\.\d*)?(e-?\d+)?$/.test(next)) {
+          setArg(letters[j], next)
+          broken = true
+          break
+        }
+
+        if (letters[j + 1] && letters[j + 1].match(/\W/)) {
+          setArg(letters[j], next)
+          broken = true
+          break
+        } else {
+          setArg(letters[j], defaultForType(guessType(letters[j], flags)))
+        }
+      }
+
+      key = arg.slice(-1)[0]
+
+      if (!broken && key !== '-') {
+        // nargs format = '-f a b c'
+        if (checkAllAliases(key, flags.nargs)) {
+          i = eatNargs(i, key, args)
+        // array format = '-f a b c'
+        } else if (checkAllAliases(key, flags.arrays) && args.length > i + 1) {
+          i = eatArray(i, key, args)
+        } else {
+          next = args[i + 1]
+
+          if (next !== undefined && (!/^(-|--)[^-]/.test(next) ||
+            next.match(negative)) &&
+            !checkAllAliases(key, flags.bools) &&
+            !checkAllAliases(key, flags.counts)) {
+            setArg(key, next)
+            i++
+          } else if (/^(true|false)$/.test(next)) {
+            setArg(key, next)
+            i++
+          } else {
+            setArg(key, defaultForType(guessType(key, flags)))
+          }
+        }
+      }
+    } else {
+      argv._.push(
+        flags.strings['_'] || !isNumber(arg) ? arg : Number(arg)
+      )
+    }
+  }
+
+  // order of precedence:
+  // 1. command line arg
+  // 2. value from config file
+  // 3. value from config objects
+  // 4. value from env var
+  // 5. configured default value
+  applyEnvVars(argv, true) // special case: check env vars that point to config file
+  setConfig(argv)
+  setConfigObjects()
+  applyEnvVars(argv, false)
+  applyDefaultsAndAliases(argv, flags.aliases, defaults)
+  applyCoercions(argv)
+
+  // for any counts either not in args or without an explicit default, set to 0
+  Object.keys(flags.counts).forEach(function (key) {
+    if (!hasKey(argv, key.split('.'))) setArg(key, 0)
+  })
+
+  notFlags.forEach(function (key) {
+    argv._.push(key)
+  })
+
+  // how many arguments should we consume, based
+  // on the nargs option?
+  function eatNargs (i, key, args) {
+    var toEat = checkAllAliases(key, flags.nargs)
+
+    if (args.length - (i + 1) < toEat) error = Error(__('Not enough arguments following: %s', key))
+
+    for (var ii = i + 1; ii < (toEat + i + 1); ii++) {
+      setArg(key, args[ii])
+    }
+
+    return (i + toEat)
+  }
+
+  // if an option is an array, eat all non-hyphenated arguments
+  // following it... YUM!
+  // e.g., --foo apple banana cat becomes ["apple", "banana", "cat"]
+  function eatArray (i, key, args) {
+    var start = i + 1
+    var argsToSet = []
+    var multipleArrayFlag = i > 0
+    for (var ii = i + 1; ii < args.length; ii++) {
+      if (/^-/.test(args[ii]) && !negative.test(args[ii])) {
+        if (ii === start) {
+          setArg(key, defaultForType('array'))
+        }
+        multipleArrayFlag = true
+        break
+      }
+      i = ii
+      argsToSet.push(args[ii])
+    }
+    if (multipleArrayFlag) {
+      setArg(key, argsToSet.map(function (arg) {
+        return processValue(key, arg)
+      }))
+    } else {
+      argsToSet.forEach(function (arg) {
+        setArg(key, arg)
+      })
+    }
+
+    return i
+  }
+
+  function setArg (key, val) {
+    unsetDefaulted(key)
+
+    if (/-/.test(key) && !(flags.aliases[key] && flags.aliases[key].length) && configuration['camel-case-expansion']) {
+      var c = camelCase(key)
+      flags.aliases[key] = [c]
+      newAliases[c] = true
+    }
+
+    var value = processValue(key, val)
+
+    var splitKey = key.split('.')
+    setKey(argv, splitKey, value)
+
+    // handle populating aliases of the full key
+    if (flags.aliases[key]) {
+      flags.aliases[key].forEach(function (x) {
+        x = x.split('.')
+        setKey(argv, x, value)
+      })
+    }
+
+    // handle populating aliases of the first element of the dot-notation key
+    if (splitKey.length > 1 && configuration['dot-notation']) {
+      ;(flags.aliases[splitKey[0]] || []).forEach(function (x) {
+        x = x.split('.')
+
+        // expand alias with nested objects in key
+        var a = [].concat(splitKey)
+        a.shift() // nuke the old key.
+        x = x.concat(a)
+
+        setKey(argv, x, value)
+      })
+    }
+
+    // Set normalize getter and setter when key is in 'normalize' but isn't an array
+    if (checkAllAliases(key, flags.normalize) && !checkAllAliases(key, flags.arrays)) {
+      var keys = [key].concat(flags.aliases[key] || [])
+      keys.forEach(function (key) {
+        argv.__defineSetter__(key, function (v) {
+          val = path.normalize(v)
+        })
+
+        argv.__defineGetter__(key, function () {
+          return typeof val === 'string' ? path.normalize(val) : val
+        })
+      })
+    }
+  }
+
+  function processValue (key, val) {
+    // handle parsing boolean arguments --foo=true --bar false.
+    if (checkAllAliases(key, flags.bools) || checkAllAliases(key, flags.counts)) {
+      if (typeof val === 'string') val = val === 'true'
+    }
+
+    var value = val
+    if (!checkAllAliases(key, flags.strings) && !checkAllAliases(key, flags.coercions)) {
+      if (isNumber(val)) value = Number(val)
+      if (!isUndefined(val) && !isNumber(val) && checkAllAliases(key, flags.numbers)) value = NaN
+    }
+
+    // increment a count given as arg (either no value or value parsed as boolean)
+    if (checkAllAliases(key, flags.counts) && (isUndefined(value) || typeof value === 'boolean')) {
+      value = increment
+    }
+
+    // Set normalized value when key is in 'normalize' and in 'arrays'
+    if (checkAllAliases(key, flags.normalize) && checkAllAliases(key, flags.arrays)) {
+      if (Array.isArray(val)) value = val.map(path.normalize)
+      else value = path.normalize(val)
+    }
+    return value
+  }
+
+  // set args from config.json file, this should be
+  // applied last so that defaults can be applied.
+  function setConfig (argv) {
+    var configLookup = {}
+
+    // expand defaults/aliases, in-case any happen to reference
+    // the config.json file.
+    applyDefaultsAndAliases(configLookup, flags.aliases, defaults)
+
+    Object.keys(flags.configs).forEach(function (configKey) {
+      var configPath = argv[configKey] || configLookup[configKey]
+      if (configPath) {
+        try {
+          var config = null
+          var resolvedConfigPath = path.resolve(process.cwd(), configPath)
+
+          if (typeof flags.configs[configKey] === 'function') {
+            try {
+              config = flags.configs[configKey](resolvedConfigPath)
+            } catch (e) {
+              config = e
+            }
+            if (config instanceof Error) {
+              error = config
+              return
+            }
+          } else {
+            config = require(resolvedConfigPath)
+          }
+
+          setConfigObject(config)
+        } catch (ex) {
+          if (argv[configKey]) error = Error(__('Invalid JSON config file: %s', configPath))
+        }
+      }
+    })
+  }
+
+  // set args from config object.
+  // it recursively checks nested objects.
+  function setConfigObject (config, prev) {
+    Object.keys(config).forEach(function (key) {
+      var value = config[key]
+      var fullKey = prev ? prev + '.' + key : key
+
+      // if the value is an inner object and we have dot-notation
+      // enabled, treat inner objects in config the same as
+      // heavily nested dot notations (foo.bar.apple).
+      if (typeof value === 'object' && !Array.isArray(value) && configuration['dot-notation']) {
+        // if the value is an object but not an array, check nested object
+        setConfigObject(value, fullKey)
+      } else {
+        // setting arguments via CLI takes precedence over
+        // values within the config file.
+        if (!hasKey(argv, fullKey.split('.')) || (flags.defaulted[fullKey])) {
+          setArg(fullKey, value)
+        }
+      }
+    })
+  }
+
+  // set all config objects passed in opts
+  function setConfigObjects () {
+    if (typeof configObjects === 'undefined') return
+    configObjects.forEach(function (configObject) {
+      setConfigObject(configObject)
+    })
+  }
+
+  function applyEnvVars (argv, configOnly) {
+    if (typeof envPrefix === 'undefined') return
+
+    var prefix = typeof envPrefix === 'string' ? envPrefix : ''
+    Object.keys(process.env).forEach(function (envVar) {
+      if (prefix === '' || envVar.lastIndexOf(prefix, 0) === 0) {
+        // get array of nested keys and convert them to camel case
+        var keys = envVar.split('__').map(function (key, i) {
+          if (i === 0) {
+            key = key.substring(prefix.length)
+          }
+          return camelCase(key)
+        })
+
+        if (((configOnly && flags.configs[keys.join('.')]) || !configOnly) && (!hasKey(argv, keys) || flags.defaulted[keys.join('.')])) {
+          setArg(keys.join('.'), process.env[envVar])
+        }
+      }
+    })
+  }
+
+  function applyCoercions (argv) {
+    var coerce
+    Object.keys(argv).forEach(function (key) {
+      coerce = checkAllAliases(key, flags.coercions)
+      if (typeof coerce === 'function') {
+        try {
+          argv[key] = coerce(argv[key])
+        } catch (err) {
+          error = err
+        }
+      }
+    })
+  }
+
+  function applyDefaultsAndAliases (obj, aliases, defaults) {
+    Object.keys(defaults).forEach(function (key) {
+      if (!hasKey(obj, key.split('.'))) {
+        setKey(obj, key.split('.'), defaults[key])
+
+        ;(aliases[key] || []).forEach(function (x) {
+          if (hasKey(obj, x.split('.'))) return
+          setKey(obj, x.split('.'), defaults[key])
+        })
+      }
+    })
+  }
+
+  function hasKey (obj, keys) {
+    var o = obj
+
+    if (!configuration['dot-notation']) keys = [keys.join('.')]
+
+    keys.slice(0, -1).forEach(function (key) {
+      o = (o[key] || {})
+    })
+
+    var key = keys[keys.length - 1]
+
+    if (typeof o !== 'object') return false
+    else return key in o
+  }
+
+  function setKey (obj, keys, value) {
+    var o = obj
+
+    if (!configuration['dot-notation']) keys = [keys.join('.')]
+
+    keys.slice(0, -1).forEach(function (key) {
+      if (o[key] === undefined) o[key] = {}
+      o = o[key]
+    })
+
+    var key = keys[keys.length - 1]
+
+    var isTypeArray = checkAllAliases(key, flags.arrays)
+    var isValueArray = Array.isArray(value)
+    var duplicate = configuration['duplicate-arguments-array']
+
+    if (value === increment) {
+      o[key] = increment(o[key])
+    } else if (Array.isArray(o[key])) {
+      if (duplicate && isTypeArray && isValueArray) {
+        o[key] = configuration['flatten-duplicate-arrays'] ? o[key].concat(value) : [o[key]].concat([value])
+      } else if (!duplicate && Boolean(isTypeArray) === Boolean(isValueArray)) {
+        o[key] = value
+      } else {
+        o[key] = o[key].concat([value])
+      }
+    } else if (o[key] === undefined && isTypeArray) {
+      o[key] = isValueArray ? value : [value]
+    } else if (duplicate && !(o[key] === undefined || checkAllAliases(key, flags.bools) || checkAllAliases(keys.join('.'), flags.bools) || checkAllAliases(key, flags.counts))) {
+      o[key] = [ o[key], value ]
+    } else {
+      o[key] = value
+    }
+  }
+
+  // extend the aliases list with inferred aliases.
+  function extendAliases () {
+    Array.prototype.slice.call(arguments).forEach(function (obj) {
+      Object.keys(obj || {}).forEach(function (key) {
+        // short-circuit if we've already added a key
+        // to the aliases array, for example it might
+        // exist in both 'opts.default' and 'opts.key'.
+        if (flags.aliases[key]) return
+
+        flags.aliases[key] = [].concat(aliases[key] || [])
+        // For "--option-name", also set argv.optionName
+        flags.aliases[key].concat(key).forEach(function (x) {
+          if (/-/.test(x) && configuration['camel-case-expansion']) {
+            var c = camelCase(x)
+            flags.aliases[key].push(c)
+            newAliases[c] = true
+          }
+        })
+        flags.aliases[key].forEach(function (x) {
+          flags.aliases[x] = [key].concat(flags.aliases[key].filter(function (y) {
+            return x !== y
+          }))
+        })
+      })
+    })
+  }
+
+  // check if a flag is set for any of a key's aliases.
+  function checkAllAliases (key, flag) {
+    var isSet = false
+    var toCheck = [].concat(flags.aliases[key] || [], key)
+
+    toCheck.forEach(function (key) {
+      if (flag[key]) isSet = flag[key]
+    })
+
+    return isSet
+  }
+
+  function setDefaulted (key) {
+    [].concat(flags.aliases[key] || [], key).forEach(function (k) {
+      flags.defaulted[k] = true
+    })
+  }
+
+  function unsetDefaulted (key) {
+    [].concat(flags.aliases[key] || [], key).forEach(function (k) {
+      delete flags.defaulted[k]
+    })
+  }
+
+  // return a default value, given the type of a flag.,
+  // e.g., key of type 'string' will default to '', rather than 'true'.
+  function defaultForType (type) {
+    var def = {
+      boolean: true,
+      string: '',
+      number: undefined,
+      array: []
+    }
+
+    return def[type]
+  }
+
+  // given a flag, enforce a default type.
+  function guessType (key, flags) {
+    var type = 'boolean'
+
+    if (checkAllAliases(key, flags.strings)) type = 'string'
+    else if (checkAllAliases(key, flags.numbers)) type = 'number'
+    else if (checkAllAliases(key, flags.arrays)) type = 'array'
+
+    return type
+  }
+
+  function isNumber (x) {
+    if (!configuration['parse-numbers']) return false
+    if (typeof x === 'number') return true
+    if (/^0x[0-9a-f]+$/i.test(x)) return true
+    return /^[-+]?(?:\d+(?:\.\d*)?|\.\d+)(e[-+]?\d+)?$/.test(x)
+  }
+
+  function isUndefined (num) {
+    return num === undefined
+  }
+
+  return {
+    argv: argv,
+    error: error,
+    aliases: flags.aliases,
+    newAliases: newAliases,
+    configuration: configuration
+  }
+}
+
+// if any aliases reference each other, we should
+// merge them together.
+function combineAliases (aliases) {
+  var aliasArrays = []
+  var change = true
+  var combined = {}
+
+  // turn alias lookup hash {key: ['alias1', 'alias2']} into
+  // a simple array ['key', 'alias1', 'alias2']
+  Object.keys(aliases).forEach(function (key) {
+    aliasArrays.push(
+      [].concat(aliases[key], key)
+    )
+  })
+
+  // combine arrays until zero changes are
+  // made in an iteration.
+  while (change) {
+    change = false
+    for (var i = 0; i < aliasArrays.length; i++) {
+      for (var ii = i + 1; ii < aliasArrays.length; ii++) {
+        var intersect = aliasArrays[i].filter(function (v) {
+          return aliasArrays[ii].indexOf(v) !== -1
+        })
+
+        if (intersect.length) {
+          aliasArrays[i] = aliasArrays[i].concat(aliasArrays[ii])
+          aliasArrays.splice(ii, 1)
+          change = true
+          break
+        }
+      }
+    }
+  }
+
+  // map arrays back to the hash-lookup (de-dupe while
+  // we're at it).
+  aliasArrays.forEach(function (aliasArray) {
+    aliasArray = aliasArray.filter(function (v, i, self) {
+      return self.indexOf(v) === i
+    })
+    combined[aliasArray.pop()] = aliasArray
+  })
+
+  return combined
+}
+
+function assign (defaults, configuration) {
+  var o = {}
+  configuration = configuration || {}
+
+  Object.keys(defaults).forEach(function (k) {
+    o[k] = defaults[k]
+  })
+  Object.keys(configuration).forEach(function (k) {
+    o[k] = configuration[k]
+  })
+
+  return o
+}
+
+// this function should only be called when a count is given as an arg
+// it is NOT called to set a default value
+// thus we can start the count at 1 instead of 0
+function increment (orig) {
+  return orig !== undefined ? orig + 1 : 1
+}
+
+function Parser (args, opts) {
+  var result = parse(args.slice(), opts)
+
+  return result.argv
+}
+
+// parse arguments and return detailed
+// meta information, aliases, etc.
+Parser.detailed = function (args, opts) {
+  return parse(args.slice(), opts)
+}
+
+module.exports = Parser
diff --git a/helloworld/node_modules/yargs-parser/lib/tokenize-arg-string.js b/helloworld/node_modules/yargs-parser/lib/tokenize-arg-string.js
new file mode 100755
index 0000000..23d39e1
--- /dev/null
+++ b/helloworld/node_modules/yargs-parser/lib/tokenize-arg-string.js
@@ -0,0 +1,34 @@
+// take an un-split argv string and tokenize it.
+module.exports = function (argString) {
+  if (Array.isArray(argString)) return argString
+
+  var i = 0
+  var c = null
+  var opening = null
+  var args = []
+
+  for (var ii = 0; ii < argString.length; ii++) {
+    c = argString.charAt(ii)
+
+    // split on spaces unless we're in quotes.
+    if (c === ' ' && !opening) {
+      i++
+      continue
+    }
+
+    // don't split the string if we're in matching
+    // opening or closing single and double quotes.
+    if (c === opening) {
+      opening = null
+      continue
+    } else if ((c === "'" || c === '"') && !opening) {
+      opening = c
+      continue
+    }
+
+    if (!args[i]) args[i] = ''
+    args[i] += c
+  }
+
+  return args
+}
diff --git a/helloworld/node_modules/yargs/CHANGELOG.md b/helloworld/node_modules/yargs/CHANGELOG.md
new file mode 100755
index 0000000..5c80536
--- /dev/null
+++ b/helloworld/node_modules/yargs/CHANGELOG.md
@@ -0,0 +1,843 @@
+# Change Log
+
+All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
+
+<a name="6.6.0"></a>
+# [6.6.0](https://github.com/yargs/yargs/compare/v6.5.0...v6.6.0) (2016-12-29)
+
+
+### Bug Fixes
+
+* [object Object] was accidentally being populated on options object ([#736](https://github.com/yargs/yargs/issues/736)) ([f755e27](https://github.com/yargs/yargs/commit/f755e27))
+* do not use cwd when resolving package.json for yargs parsing config ([#726](https://github.com/yargs/yargs/issues/726)) ([9bdaab7](https://github.com/yargs/yargs/commit/9bdaab7))
+
+
+### Features
+
+* implement conflicts() for defining mutually exclusive arguments; thanks [@madcampos](https://github.com/madcampos)! ([#741](https://github.com/yargs/yargs/issues/741)) ([5883779](https://github.com/yargs/yargs/commit/5883779))
+* split demand() into demandCommand()/demandOption() ([#740](https://github.com/yargs/yargs/issues/740)) ([66573c8](https://github.com/yargs/yargs/commit/66573c8))
+* support for positional argument aliases ([#727](https://github.com/yargs/yargs/issues/727)) ([27e1a57](https://github.com/yargs/yargs/commit/27e1a57))
+
+
+
+<a name="6.5.0"></a>
+# [6.5.0](https://github.com/yargs/yargs/compare/v6.4.0...v6.5.0) (2016-12-01)
+
+
+### Bug Fixes
+
+* still freeze/unfreeze if parse() is called in isolation ([#717](https://github.com/yargs/yargs/issues/717)) ([30a9492](https://github.com/yargs/yargs/commit/30a9492))
+
+
+### Features
+
+* pull in yargs-parser introducing additional settings ([#688](https://github.com/yargs/yargs/issues/688)), and fixing [#716](https://github.com/yargs/yargs/issues/716) ([#722](https://github.com/yargs/yargs/issues/722)) ([702995a](https://github.com/yargs/yargs/commit/702995a))
+
+
+
+<a name="6.4.0"></a>
+# [6.4.0](https://github.com/yargs/yargs/compare/v6.3.0...v6.4.0) (2016-11-13)
+
+
+### Bug Fixes
+
+* **locales:** correct some Russian translations ([#691](https://github.com/yargs/yargs/issues/691)) ([a980671](https://github.com/yargs/yargs/commit/a980671))
+
+
+### Features
+
+* **locales:** Added Belarusian translation ([#690](https://github.com/yargs/yargs/issues/690)) ([68dac1f](https://github.com/yargs/yargs/commit/68dac1f))
+* **locales:** Create nl.json ([#687](https://github.com/yargs/yargs/issues/687)) ([46ce1bb](https://github.com/yargs/yargs/commit/46ce1bb))
+* update to yargs-parser that addresses [#598](https://github.com/yargs/yargs/issues/598), [#617](https://github.com/yargs/yargs/issues/617) ([#700](https://github.com/yargs/yargs/issues/700)) ([54cb31d](https://github.com/yargs/yargs/commit/54cb31d))
+* yargs is now passed as the third-argument to fail handler ([#613](https://github.com/yargs/yargs/issues/613)) ([21b74f9](https://github.com/yargs/yargs/commit/21b74f9))
+
+
+### Performance Improvements
+
+* normalizing package data is an expensive operation ([#705](https://github.com/yargs/yargs/issues/705)) ([49cf533](https://github.com/yargs/yargs/commit/49cf533))
+
+
+
+<a name="6.3.0"></a>
+# [6.3.0](https://github.com/yargs/yargs/compare/v6.2.0...v6.3.0) (2016-10-19)
+
+
+### Bug Fixes
+
+* **command:** subcommands via commandDir() now supported for parse(msg, cb) ([#678](https://github.com/yargs/yargs/issues/678)) ([6b85cc6](https://github.com/yargs/yargs/commit/6b85cc6))
+
+
+### Features
+
+* **locales:** Add Thai locale file ([#679](https://github.com/yargs/yargs/issues/679)) ([c05e36b](https://github.com/yargs/yargs/commit/c05e36b))
+
+
+
+<a name="6.2.0"></a>
+# [6.2.0](https://github.com/yargs/yargs/compare/v6.1.1...v6.2.0) (2016-10-16)
+
+
+### Bug Fixes
+
+* stop applying parser to context object ([#675](https://github.com/yargs/yargs/issues/675)) ([3fe9b8f](https://github.com/yargs/yargs/commit/3fe9b8f))
+
+
+### Features
+
+* add new pt_BR translations ([#674](https://github.com/yargs/yargs/issues/674)) ([5615a82](https://github.com/yargs/yargs/commit/5615a82))
+* Italian translations for 'did you mean' and 'aliases' ([#673](https://github.com/yargs/yargs/issues/673)) ([81984e6](https://github.com/yargs/yargs/commit/81984e6))
+
+
+
+<a name="6.1.1"></a>
+## [6.1.1](https://github.com/yargs/yargs/compare/v6.1.0...v6.1.1) (2016-10-15)
+
+
+### Bug Fixes
+
+* freeze was not resetting configObjects to initial state; addressed performance issue raised by [@nexdrew](https://github.com/nexdrew). ([#670](https://github.com/yargs/yargs/issues/670)) ([ae4bcd4](https://github.com/yargs/yargs/commit/ae4bcd4))
+
+
+
+<a name="6.1.0"></a>
+# [6.1.0](https://github.com/yargs/yargs/compare/v6.0.0...v6.1.0) (2016-10-15)
+
+
+### Bug Fixes
+
+* **locales:** change some translations ([#667](https://github.com/yargs/yargs/issues/667)) ([aa966c5](https://github.com/yargs/yargs/commit/aa966c5))
+* **locales:** conform hi locale to y18n.__n expectations ([#666](https://github.com/yargs/yargs/issues/666)) ([22adb18](https://github.com/yargs/yargs/commit/22adb18))
+
+
+### Features
+
+* initial support for command aliases ([#647](https://github.com/yargs/yargs/issues/647)) ([127a040](https://github.com/yargs/yargs/commit/127a040))
+* **command:** add camelcase commands to argv ([#658](https://github.com/yargs/yargs/issues/658)) ([b1cabae](https://github.com/yargs/yargs/commit/b1cabae))
+* **locales:** add Hindi translations ([9290912](https://github.com/yargs/yargs/commit/9290912))
+* **locales:** add Hungarian translations  ([be92327](https://github.com/yargs/yargs/commit/be92327))
+* **locales:** Japanese translations for 'did you mean' and 'aliases'  ([#651](https://github.com/yargs/yargs/issues/651)) ([5eb78fc](https://github.com/yargs/yargs/commit/5eb78fc))
+* **locales:** Polish translations for 'did you mean' and 'aliases' ([#650](https://github.com/yargs/yargs/issues/650)) ([c951c0e](https://github.com/yargs/yargs/commit/c951c0e))
+* reworking yargs API to make it easier to run in headless environments, e.g., Slack ([#646](https://github.com/yargs/yargs/issues/646)) ([f284c29](https://github.com/yargs/yargs/commit/f284c29))
+* Turkish translations for 'did you mean' and 'aliases' ([#660](https://github.com/yargs/yargs/issues/660)) ([072fd45](https://github.com/yargs/yargs/commit/072fd45))
+
+
+
+<a name="6.0.0"></a>
+# [6.0.0](https://github.com/yargs/yargs/compare/v5.0.0...v6.0.0) (2016-09-30)
+
+
+### Bug Fixes
+
+* changed parsing of the command string to ignore extra spaces ([#600](https://github.com/yargs/yargs/issues/600)) ([e8e5a72](https://github.com/yargs/yargs/commit/e8e5a72))
+* drop lodash.assign ([#641](https://github.com/yargs/yargs/issues/641)) ([ad3146f](https://github.com/yargs/yargs/commit/ad3146f))
+* for args that have skipValidation set to `true`, check if the parsed arg is `true` ([#619](https://github.com/yargs/yargs/issues/619)) ([658a34c](https://github.com/yargs/yargs/commit/658a34c))
+* upgrade standard, and fix appveyor config so that it works with newest standard ([#607](https://github.com/yargs/yargs/issues/607)) ([c301f42](https://github.com/yargs/yargs/commit/c301f42))
+
+
+### Chores
+
+* upgrade yargs-parser ([#633](https://github.com/yargs/yargs/issues/633)) ([cc1224e](https://github.com/yargs/yargs/commit/cc1224e))
+
+
+### Features
+
+* make opts object optional for .option() ([#624](https://github.com/yargs/yargs/issues/624)) ([4f29de6](https://github.com/yargs/yargs/commit/4f29de6))
+
+
+### Performance Improvements
+
+* defer windowWidth() to improve perf for non-help usage ([#610](https://github.com/yargs/yargs/issues/610)) ([cbc3636](https://github.com/yargs/yargs/commit/cbc3636))
+
+
+### BREAKING CHANGES
+
+* coerce is now applied as a final step after other parsing is complete
+
+
+
+<a name="5.0.0"></a>
+# [5.0.0](https://github.com/yargs/yargs/compare/v4.8.1...v5.0.0) (2016-08-14)
+
+
+### Bug Fixes
+
+* **default:** Remove undocumented alias of default() ([#469](https://github.com/yargs/yargs/issues/469)) ([b8591b2](https://github.com/yargs/yargs/commit/b8591b2))
+* remove deprecated zh.json ([#578](https://github.com/yargs/yargs/issues/578)) ([317c62c](https://github.com/yargs/yargs/commit/317c62c))
+
+
+### Features
+
+* .help() API can now enable implicit help command ([#574](https://github.com/yargs/yargs/issues/574)) ([7645019](https://github.com/yargs/yargs/commit/7645019))
+* **command:** builder function no longer needs to return the yargs instance ([#549](https://github.com/yargs/yargs/issues/549)) ([eaa2873](https://github.com/yargs/yargs/commit/eaa2873))
+* add coerce api ([#586](https://github.com/yargs/yargs/issues/586)) ([1d53ccb](https://github.com/yargs/yargs/commit/1d53ccb))
+* adds recommendCommands() for command suggestions ([#580](https://github.com/yargs/yargs/issues/580)) ([59474dc](https://github.com/yargs/yargs/commit/59474dc))
+* apply .env() globally ([#553](https://github.com/yargs/yargs/issues/553)) ([be65728](https://github.com/yargs/yargs/commit/be65728))
+* apply default builder to command() and apply fail() handlers globally ([#583](https://github.com/yargs/yargs/issues/583)) ([0aaa68b](https://github.com/yargs/yargs/commit/0aaa68b))
+* update yargs-parser to version 3.1.0 ([#581](https://github.com/yargs/yargs/issues/581)) ([882a127](https://github.com/yargs/yargs/commit/882a127))
+
+
+### Performance Improvements
+
+* defer requiring most external libs until needed ([#584](https://github.com/yargs/yargs/issues/584)) ([f9b0ed4](https://github.com/yargs/yargs/commit/f9b0ed4))
+
+
+### BREAKING CHANGES
+
+* fail is now applied globally.
+* we now default to an empty builder function when command is executed with no builder.
+* yargs-parser now better handles negative integer values, at the cost of handling numeric option names, e.g., -1 hello
+* default: removed undocumented `defaults` alias for `default`.
+* introduces a default `help` command which outputs help, as an alternative to a help flag.
+* interpret demand() numbers as relative to executing command ([#582](https://github.com/yargs/yargs/issues/582)) ([927810c](https://github.com/yargs/yargs/commit/927810c))
+
+
+
+<a name="4.8.1"></a>
+## [4.8.1](https://github.com/yargs/yargs/compare/v4.8.0...v4.8.1) (2016-07-16)
+
+
+### Bug Fixes
+
+* **commandDir:** make dir relative to caller instead of require.main.filename ([#548](https://github.com/yargs/yargs/issues/548)) ([3c2e479](https://github.com/yargs/yargs/commit/3c2e479))
+* add config lookup for .implies() ([#556](https://github.com/yargs/yargs/issues/556)) ([8d7585c](https://github.com/yargs/yargs/commit/8d7585c))
+* cache pkg lookups by path to avoid returning the wrong one ([#552](https://github.com/yargs/yargs/issues/552)) ([fea7e0b](https://github.com/yargs/yargs/commit/fea7e0b))
+* positional arguments were not being handled appropriately by parse() ([#559](https://github.com/yargs/yargs/issues/559)) ([063a866](https://github.com/yargs/yargs/commit/063a866))
+* pull in [@nexdrew](https://github.com/nexdrew)'s fixes to yargs-parser ([#560](https://github.com/yargs/yargs/issues/560)) ([c77c080](https://github.com/yargs/yargs/commit/c77c080)), closes [#560](https://github.com/yargs/yargs/issues/560)
+
+
+
+<a name="4.8.0"></a>
+# [4.8.0](https://github.com/yargs/yargs/compare/v4.7.1...v4.8.0) (2016-07-09)
+
+
+### Bug Fixes
+
+* drop unused camelcase dependency fixes [#516](https://github.com/yargs/yargs/issues/516) ([#525](https://github.com/yargs/yargs/issues/525)) ([365fb9a](https://github.com/yargs/yargs/commit/365fb9a)), closes [#516](https://github.com/yargs/yargs/issues/516) [#525](https://github.com/yargs/yargs/issues/525)
+* fake a tty in tests, so that we can use the new set-blocking ([#512](https://github.com/yargs/yargs/issues/512)) ([a54c742](https://github.com/yargs/yargs/commit/a54c742))
+* ignore invalid package.json during read-pkg-up ([#546](https://github.com/yargs/yargs/issues/546)) ([e058c87](https://github.com/yargs/yargs/commit/e058c87))
+* keep both zh and zh_CN until yargs[@5](https://github.com/5).x ([0f8faa7](https://github.com/yargs/yargs/commit/0f8faa7))
+* lazy-load package.json and cache. get rid of pkg-conf dependency. ([#544](https://github.com/yargs/yargs/issues/544)) ([2609b2e](https://github.com/yargs/yargs/commit/2609b2e))
+* we now respect the order of _ when applying commands ([#537](https://github.com/yargs/yargs/issues/537)) ([ed86b78](https://github.com/yargs/yargs/commit/ed86b78))
+
+
+### Features
+
+* add .commandDir(dir) to API to apply all command modules from a relative directory ([#494](https://github.com/yargs/yargs/issues/494)) ([b299dff](https://github.com/yargs/yargs/commit/b299dff))
+* **command:** derive missing command string from module filename ([#527](https://github.com/yargs/yargs/issues/527)) ([20d4b8a](https://github.com/yargs/yargs/commit/20d4b8a))
+* builder is now optional for a command module ([#545](https://github.com/yargs/yargs/issues/545)) ([8d6ad6e](https://github.com/yargs/yargs/commit/8d6ad6e))
+
+
+
+<a name="4.7.1"></a>
+## [4.7.1](https://github.com/yargs/yargs/compare/v4.7.0...v4.7.1) (2016-05-15)
+
+
+### Bug Fixes
+
+* switch to using `const` rather than `var` ([#499](https://github.com/yargs/yargs/pull/499))
+* make stdout flush on newer versions of Node.js ([#501](https://github.com/yargs/yargs/issues/501)) ([9f8c6f4](https://github.com/yargs/yargs/commit/9f8c6f4))
+
+
+
+<a name="4.7.0"></a>
+# [4.7.0](https://github.com/yargs/yargs/compare/v4.6.0...v4.7.0) (2016-05-02)
+
+
+### Bug Fixes
+
+* **pkgConf:** fix aliases issues in .pkgConf() ([#478](https://github.com/yargs/yargs/issues/478))([b900502](https://github.com/yargs/yargs/commit/b900502))
+
+
+### Features
+
+* **completion:** allow to get completions for any string, not just process.argv ([#470](https://github.com/yargs/yargs/issues/470))([74fcfbc](https://github.com/yargs/yargs/commit/74fcfbc))
+* **configuration:** Allow to directly pass a configuration object to .config() ([#480](https://github.com/yargs/yargs/issues/480))([e0a7e05](https://github.com/yargs/yargs/commit/e0a7e05))
+* **validation:** Add .skipValidation() method ([#471](https://github.com/yargs/yargs/issues/471))([d72badb](https://github.com/yargs/yargs/commit/d72badb))
+
+
+
+<a name="4.6.0"></a>
+# [4.6.0](https://github.com/yargs/yargs/compare/v4.5.0...v4.6.0) (2016-04-11)
+
+
+### Bug Fixes
+
+* **my brand!:** I agree with [@osher](https://github.com/osher) lightweight isn't a huge selling point of ours any longer, see [#468](https://github.com/yargs/yargs/issues/468) ([c46d7e1](https://github.com/yargs/yargs/commit/c46d7e1))
+
+### Features
+
+* switch to standard-version for release management ([f70f801](https://github.com/yargs/yargs/commit/f70f801))
+* upgrade to version of yargs-parser that introduces some slick new features, great work [@elas7](https://github.com/elas7). update cliui, replace win-spawn, replace badge. ([#475](https://github.com/yargs/yargs/issues/475)) ([f915dd4](https://github.com/yargs/yargs/commit/f915dd4))
+
+
+
+<a name="4.5.0"></a>
+# [4.5.0](https://github.com/yargs/yargs/compare/v4.4.0...v4.5.0) (2016-04-05)
+
+
+### Bug Fixes
+
+* **windows:** handle $0 better on Windows platforms ([eb6e03f](https://github.com/yargs/yargs/commit/eb6e03f))
+
+### Features
+
+* **commands:** implemented variadic positional arguments ([51d926e](https://github.com/yargs/yargs/commit/51d926e))
+* **completion:** completion now better handles aliases, and avoids duplicating keys. ([86416c8](https://github.com/yargs/yargs/commit/86416c8))
+* **config:** If invoking .config() without parameters, set a default option ([0413dd1](https://github.com/yargs/yargs/commit/0413dd1))
+* **conventional-changelog:** switching to using conventional-changelog for generating the changelog ([a2b5a2a](https://github.com/yargs/yargs/commit/a2b5a2a))
+
+
+
+### v4.4.0 (2016/04/03 21:10 +07:00)
+
+- [#454](https://github.com/yargs/yargs/pull/454) fix demand() when second argument is an array (@elas7)
+- [#452](https://github.com/yargs/yargs/pull/452) fix code example for `.help()` docs (@maxrimue)
+- [#450](https://github.com/yargs/yargs/pull/450) fix for bash completion trailing space edge-case (@elas7)
+- [#448](https://github.com/yargs/yargs/pull/448) allow a method to be passed to `showHelp`, rather than a log-level (@osher)
+- [#446](https://github.com/yargs/yargs/pull/446) update yargs-parser, y18n, nyc, cliui, pkg-conf (@bcoe)
+- [#436](https://github.com/yargs/yargs/pull/436) the rebase method is only used by tests, do not export it in two places (@elas7)
+- [#428](https://github.com/yargs/yargs/pull/428) initial support for subcommands (@nexdrew)
+
+### v4.3.2 (2016/3/20 15:07 +07:00)
+
+- [#445](https://github.com/yargs/yargs/pull/445) strict mode was failing if no commands were registered (@nexdrew)
+- [#443](https://github.com/yargs/yargs/pull/443) adds Italian translation \o/ (@madrisan)
+- [#441](https://github.com/yargs/yargs/pull/441) remove duplicate keys from array options configuration (@elas7)
+- [#437](https://github.com/yargs/yargs/pull/437) standardize tests for .command() (@lrlna)
+
+### v4.3.0 (2016/3/12 14:19 +07:00)
+
+- [#432](https://github.com/yargs/yargs/pull/432) non-singleton version of yargs (@bcoe)
+- [#422, #425, #420] translations for number (@zkat, @rilut, @maxrimue, @watilde)
+- [#414](https://github.com/yargs/yargs/pull/414) all command options can be defined in module now (@nexdrew)
+
+### v4.2.0 (2016/2/22 11:02 +07:00)
+
+- [#395](https://github.com/yargs/yargs/pull/395) do not reset groups if they contain
+  global keys (@novemberborn)
+- [#393](https://github.com/yargs/yargs/pull/393) use sane default for usage strings (@nexdrew)
+- [#392](https://github.com/yargs/yargs/pull/392) resetting wrap() was causing layout issues
+  with commands (@nexdrew)
+- [#391](https://github.com/yargs/yargs/pull/391) commands were being added multiple times (@nexdrew)
+
+### v4.0.0 (2016/2/14 1:27 +07:00)
+
+- [#384](https://github.com/bcoe/yargs/pull/384) add new number type to yargs (@lrlna, @maxrimue)
+- [#382](https://github.com/bcoe/yargs/pull/382) pass error as extra parameter to fail (@gajus)
+- [#378](https://github.com/bcoe/yargs/pull/378) introduces the pkgConf feature, which tells
+  yargs to load default argument values from a key on a project's package.json (@bcoe)
+- [#376](https://github.com/bcoe/yargs/pull/376) **breaking change**, make help() method signature
+   more consistent with other commands (@maxrimue)
+- [#368](https://github.com/bcoe/yargs/pull/368) **breaking change**, overhaul to command handling API:
+  introducing named positional arguments, commands as modules, introduces the concept of global options (options that don't reset). (@nexdrew, @bcoe).
+- [#364](https://github.com/bcoe/yargs/pull/364) add the slick new yargs website to the package.json (@iarna).
+- [#357](https://github.com/bcoe/yargs/pull/357) .strict() now requires that a valid command is provided (@lrlna)
+- [#356](https://github.com/bcoe/yargs/pull/356) pull the parsing bits of yargs into the separate module yargs-parser. Various parsing options can now be turned on and off using configuration (@bcoe).
+- [#330](https://github.com/bcoe/yargs/pull/330) **breaking change**, fix inconsistencies with `.version()` API. (@maxrimue).
+
+### v3.32.0 (2016/1/14 10:13 +07:00)
+
+- [#344](https://github.com/bcoe/yargs/pull/344) yargs now has a code of conduct and contributor guidelines (@bcoe)
+- [#341](https://github.com/bcoe/yargs/issues/341) Fix edge-case with camel-case arguments (@davibe)
+- [#331](https://github.com/bcoe/yargs/pull/331) Handle parsing a raw argument string (@kellyselden)
+- [#325](https://github.com/bcoe/yargs/pull/325) Tweaks to make tests pass again on Windows (@isaacs)
+- [#321](https://github.com/bcoe/yargs/pull/321) Custom config parsing function (@bcoe)
+
+### v3.31.0 (2015/12/03 10:15 +07:00)
+
+- [#239](https://github.com/bcoe/yargs/pull/239) Pass argv to commands (@bcoe)
+- [#308](https://github.com/bcoe/yargs/pull/308) Yargs now handles environment variables (@nexdrew)
+- [#302](https://github.com/bcoe/yargs/pull/302) Add Indonesian translation (@rilut)
+- [#300](https://github.com/bcoe/yargs/pull/300) Add Turkish translation (@feyzo)
+- [#298](https://github.com/bcoe/yargs/pull/298) Add Norwegian Bokmål translation (@sindresorhus)
+- [#297](https://github.com/bcoe/yargs/pull/297) Fix for layout of cjk characters (@disjukr)
+- [#296](https://github.com/bcoe/yargs/pull/296) Add Korean translation (@disjukr)
+
+### v3.30.0 (2015/11/13 16:29 +07:00)
+
+- [#293](https://github.com/bcoe/yargs/pull/293) Polish language support (@kamilogorek)
+- [#291](https://github.com/bcoe/yargs/pull/291) fix edge-cases with `.alias()` (@bcoe)
+- [#289](https://github.com/bcoe/yargs/pull/289) group options in custom groups (@bcoe)
+
+### v3.29.0 (2015/10/16 21:51 +07:00)
+
+- [#282](https://github.com/bcoe/yargs/pull/282) completions now accept promises (@LinusU)
+- [#281](https://github.com/bcoe/yargs/pull/281) fix parsing issues with dot notation (@bcoe)
+
+### v3.28.0 (2015/10/16 1:55 +07:00)
+
+- [#277](https://github.com/bcoe/yargs/pull/277) adds support for ansi escape codes (@bcoe)
+
+### v3.27.0 (2015/10/08 1:55 +00:00)
+
+- [#271](https://github.com/bcoe/yargs/pull/273) skips validation for help or version flags with exitProcess(false) (@tepez)
+- [#273](https://github.com/bcoe/yargs/pull/273) implements single output for errors with exitProcess(false) (@nexdrew)
+- [#269](https://github.com/bcoe/yargs/pull/269) verifies single output for errors with exitProcess(false) (@tepez)
+- [#268](https://github.com/bcoe/yargs/pull/268) adds Chinese translation (@qiu8310)
+- [#266](https://github.com/bcoe/yargs/pull/266) adds case for -- after -- in parser test (@geophree)
+
+### v3.26.0 (2015/09/25 2:14 +00:00)
+
+- [#263](https://github.com/bcoe/yargs/pull/263) document count() and option() object keys (@nexdrew)
+- [#259](https://github.com/bcoe/yargs/pull/259) remove util in readme (@38elements)
+- [#258](https://github.com/bcoe/yargs/pull/258) node v4 builds, update deps (@nexdrew)
+- [#257](https://github.com/bcoe/yargs/pull/257) fix spelling errors (@dkoleary88)
+
+### v3.25.0 (2015/09/13 7:38 -07:00)
+
+- [#254](https://github.com/bcoe/yargs/pull/254) adds Japanese translation (@oti)
+- [#253](https://github.com/bcoe/yargs/pull/253) fixes for tests on Windows (@bcoe)
+
+### v3.24.0 (2015/09/04 12:02 +00:00)
+
+- [#248](https://github.com/bcoe/yargs/pull/248) reinstate os-locale, no spawning (@nexdrew)
+- [#249](https://github.com/bcoe/yargs/pull/249) use travis container-based infrastructure (@nexdrew)
+- [#247](https://github.com/bcoe/yargs/pull/247) upgrade standard (@nexdrew)
+
+### v3.23.0 (2015/08/30 23:00 +00:00)
+
+- [#246](https://github.com/bcoe/yargs/pull/246) detect locale based only on environment variables (@bcoe)
+- [#244](https://github.com/bcoe/yargs/pull/244) adds Windows CI testing (@bcoe)
+- [#245](https://github.com/bcoe/yargs/pull/245) adds OSX CI testing (@bcoe, @nexdrew)
+
+### v3.22.0 (2015/08/28 22:26 +00:00)
+- [#242](https://github.com/bcoe/yargs/pull/242) adds detectLocale config option (@bcoe)
+
+### v3.21.1 (2015/08/28 20:58 +00:00)
+- [#240](https://github.com/bcoe/yargs/pull/240) hot-fix for Atom on Windows (@bcoe)
+
+### v3.21.0 (2015/08/21 21:20 +00:00)
+- [#238](https://github.com/bcoe/yargs/pull/238) upgrade camelcase, window-size, chai, mocha (@nexdrew)
+- [#237](https://github.com/bcoe/yargs/pull/237) adds defaultDescription to option() (@nexdrew)
+
+### v3.20.0 (2015/08/20 01:29 +00:00)
+- [#231](https://github.com/bcoe/yargs/pull/231) Merge pull request #231 from bcoe/detect-locale (@sindresorhus)
+- [#235](https://github.com/bcoe/yargs/pull/235) adds german translation to yargs (@maxrimue)
+
+### v3.19.0 (2015/08/14 05:12 +00:00)
+- [#224](https://github.com/bcoe/yargs/pull/224) added Portuguese translation (@codemonkey3045)
+
+### v3.18.1 (2015/08/12 05:53 +00:00)
+
+- [#228](https://github.com/bcoe/yargs/pull/228) notes about embedding yargs in Electron (@etiktin)
+- [#223](https://github.com/bcoe/yargs/pull/223) make booleans work in config files (@sgentle)
+
+### v3.18.0 (2015/08/06 20:05 +00:00)
+- [#222](https://github.com/bcoe/yargs/pull/222) updates fr locale (@nexdrew)
+- [#221](https://github.com/bcoe/yargs/pull/221) adds missing locale strings (@nexdrew)
+- [#220](https://github.com/bcoe/yargs/pull/220) adds es locale (@zkat)
+
+### v3.17.1 (2015/08/02 19:35 +00:00)
+- [#218](https://github.com/bcoe/yargs/pull/218) upgrades nyc (@bcoe)
+
+### v3.17.0 (2015/08/02 18:39 +00:00)
+- [#217](https://github.com/bcoe/yargs/pull/217) sort methods in README.md (@nexdrew)
+- [#215](https://github.com/bcoe/yargs/pull/215) adds fr locale (@LoicMahieu)
+
+### v3.16.0 (2015/07/30 04:35 +00:00)
+- [#210](https://github.com/bcoe/yargs/pull/210) adds i18n support to yargs (@bcoe)
+- [#209](https://github.com/bcoe/yargs/pull/209) adds choices type to yargs (@nexdrew)
+- [#207](https://github.com/bcoe/yargs/pull/207) pretty new shields from shields.io (@SimenB)
+- [#208](https://github.com/bcoe/yargs/pull/208) improvements to README.md (@nexdrew)
+- [#205](https://github.com/bcoe/yargs/pull/205) faster build times on Travis (@ChristianMurphy)
+
+### v3.15.0 (2015/07/06 06:01 +00:00)
+- [#197](https://github.com/bcoe/yargs/pull/197) tweaks to how errors bubble up from parser.js (@bcoe)
+- [#193](https://github.com/bcoe/yargs/pull/193) upgraded nyc, reporting now happens by default (@bcoe)
+
+### v3.14.0 (2015/06/28 02:12 +00:00)
+
+- [#192](https://github.com/bcoe/yargs/pull/192) standard style nits (@bcoe)
+- [#190](https://github.com/bcoe/yargs/pull/190) allow for hidden commands, e.g.,
+  .completion('completion', false) (@tschaub)
+
+### v3.13.0 (2015/06/24 04:12 +00:00)
+
+- [#187](https://github.com/bcoe/yargs/pull/187) completion now behaves differently
+  if it is being run in the context of a command (@tschaub)
+- [#186](https://github.com/bcoe/yargs/pull/186) if no matches are found for a completion
+  default to filename completion (@tschaub)
+
+### v3.12.0 (2015/06/19 03:23 +00:00)
+- [#183](https://github.com/bcoe/yargs/pull/183) don't complete commands if they've already been completed (@tschaub)
+- [#181](https://github.com/bcoe/yargs/pull/181) various fixes for completion. (@bcoe, @tschaub)
+- [#182](https://github.com/bcoe/yargs/pull/182) you can now set a maximum # of of required arguments (@bcoe)
+
+### v3.11.0 (2015/06/15 05:15 +00:00)
+
+- [#173](https://github.com/bcoe/yargs/pull/173) update standard, window-size, chai (@bcoe)
+- [#171](https://github.com/bcoe/yargs/pull/171) a description can now be set
+  when providing a config option. (@5c077yP)
+
+### v3.10.0 (2015/05/29 04:25 +00:00)
+
+- [#165](https://github.com/bcoe/yargs/pull/165) expose yargs.terminalWidth() thanks @ensonic (@bcoe)
+- [#164](https://github.com/bcoe/yargs/pull/164) better array handling thanks @getify (@bcoe)
+
+### v3.9.1 (2015/05/20 05:14 +00:00)
+- [b6662b6](https://github.com/bcoe/yargs/commit/b6662b6774cfeab4876f41ec5e2f67b7698f4e2f) clarify .config() docs (@linclark)
+- [0291360](https://github.com/bcoe/yargs/commit/02913606285ce31ce81d7f12c48d8a3029776ec7) fixed tests, switched to nyc for coverage, fixed security issue, added Lin as collaborator (@bcoe)
+
+### v3.9.0 (2015/05/10 18:32 +00:00)
+- [#157](https://github.com/bcoe/yargs/pull/157) Merge pull request #157 from bcoe/command-yargs. allows handling of command specific arguments. Thanks for the suggestion @ohjames (@bcoe)
+- [#158](https://github.com/bcoe/yargs/pull/158) Merge pull request #158 from kemitchell/spdx-license. Update license format (@kemitchell)
+
+### v3.8.0 (2015/04/24 23:10 +00:00)
+- [#154](https://github.com/bcoe/yargs/pull/154) showHelp's method signature was misleading fixes #153 (@bcoe)
+- [#151](https://github.com/bcoe/yargs/pull/151) refactor yargs' table layout logic to use new helper library (@bcoe)
+- [#150](https://github.com/bcoe/yargs/pull/150) Fix README example in argument requirements (@annonymouse)
+
+### v3.7.2 (2015/04/13 11:52 -07:00)
+
+* [679fbbf](https://github.com/bcoe/yargs/commit/679fbbf55904030ccee8a2635e8e5f46551ab2f0) updated yargs to use the [standard](https://github.com/feross/standard) style guide (agokjr)
+* [22382ee](https://github.com/bcoe/yargs/commit/22382ee9f5b495bc2586c1758cd1091cec3647f9 various bug fixes for $0 (@nylen)
+
+### v3.7.1 (2015/04/10 11:06 -07:00)
+
+* [89e1992](https://github.com/bcoe/yargs/commit/89e1992a004ba73609b5f9ee6890c4060857aba4) detect iojs bin along with node bin. (@bcoe)
+* [755509e](https://github.com/bcoe/yargs/commit/755509ea90041e5f7833bba3b8c5deffe56f0aab) improvements to example documentation in README.md (@rstacruz)
+* [0d2dfc8](https://github.com/bcoe/yargs/commit/0d2dfc822a43418242908ad97ddd5291a1b35dc6) showHelp() no longer requires that .argv has been called (@bcoe)
+
+### v3.7.0 (2015/04/04 02:29 -07:00)
+
+* [56cbe2d](https://github.com/bcoe/yargs/commit/56cbe2ddd33dc176dcbf97ba40559864a9f114e4) make .requiresArg() work with type hints. (@bcoe).
+* [2f5d562](https://github.com/bcoe/yargs/commit/2f5d5624f736741deeedf6a664d57bc4d857bdd0) serialize arrays and objects in usage strings. (@bcoe).
+* [5126304](https://github.com/bcoe/yargs/commit/5126304dd18351fc28f10530616fdd9361e0af98) be more lenient about alias/primary key ordering in chaining API. (@bcoe)
+
+### v3.6.0 (2015/03/21 01:00 +00:00)
+- [4e24e22](https://github.com/bcoe/yargs/commit/4e24e22e6a195e55ab943ede704a0231ac33b99c) support for .js configuration files. (@pirxpilot)
+
+### v3.5.4 (2015/03/12 05:56 +00:00)
+- [c16cc08](https://github.com/bcoe/yargs/commit/c16cc085501155cf7fd853ccdf8584b05ab92b78) message for non-option arguments is now optional, thanks to (@raine)
+
+### v3.5.3 (2015/03/09 06:14 +00:00)
+- [870b428](https://github.com/bcoe/yargs/commit/870b428cf515d560926ca392555b7ad57dba9e3d) completion script was missing in package.json (@bcoe)
+
+### v3.5.2 (2015/03/09 06:11 +00:00)
+- [58a4b24](https://github.com/bcoe/yargs/commit/58a4b2473ebbb326713d522be53e32d3aabb08d2) parse was being called multiple times, resulting in strange behavior (@bcoe)
+
+### v3.5.1 (2015/03/09 04:55 +00:00)
+- [4e588e0](https://github.com/bcoe/yargs/commit/4e588e055afbeb9336533095f051496e3977f515) accidentally left testing logic in (@bcoe)
+
+### v3.5.0 (2015/03/09 04:49 +00:00)
+- [718bacd](https://github.com/bcoe/yargs/commit/718bacd81b9b44f786af76b2afe491fe06274f19) added support for bash completions see #4 (@bcoe)
+- [a192882](https://github.com/bcoe/yargs/commit/a19288270fc431396c42af01125eeb4443664528) downgrade to mocha 2.1.0 until https://github.com/mochajs/mocha/issues/1585 can be sorted out (@bcoe)
+
+### v3.4.7 (2015/03/09 04:09 +00:00)
+- [9845e5c](https://github.com/bcoe/yargs/commit/9845e5c1a9c684ba0be3f0bfb40e7b62ab49d9c8) the Argv singleton was not being updated when manually parsing arguments, fixes #114 (@bcoe)
+
+### v3.4.6 (2015/03/09 04:01 +00:00)
+- [45b4c80](https://github.com/bcoe/yargs/commit/45b4c80b890d02770b0a94f326695a8a566e8fe9) set placeholders for all keys fixes #115 (@bcoe)
+
+### v3.4.5 (2015/03/01 20:31 +00:00)
+- [a758e0b](https://github.com/bcoe/yargs/commit/a758e0b2556184f067cf3d9c4ef886d39817ebd2) fix for count consuming too many arguments (@bcoe)
+
+### v3.4.4 (2015/02/28 04:52 +00:00)
+- [0476af7](https://github.com/bcoe/yargs/commit/0476af757966acf980d998b45108221d4888cfcb) added nargs feature, allowing you to specify the number of arguments after an option (@bcoe)
+- [092477d](https://github.com/bcoe/yargs/commit/092477d7ab3efbf0ba11cede57f7d8cfc70b024f) updated README with full example of v3.0 API (@bcoe)
+
+### v3.3.3 (2015/02/28 04:23 +00:00)
+- [0c4b769](https://github.com/bcoe/yargs/commit/0c4b769516cd8d93a7c4e5e675628ae0049aa9a8) remove string dependency, which conflicted with other libraries see #106 (@bcoe)
+
+### v3.3.2 (2015/02/28 04:11 +00:00)
+- [2a98906](https://github.com/bcoe/yargs/commit/2a9890675821c0e7a12f146ce008b0562cb8ec9a) add $0 to epilog (@schnittstabil)
+
+### v3.3.1 (2015/02/24 03:28 +00:00)
+- [ad485ce](https://github.com/bcoe/yargs/commit/ad485ce748ebdfce25b88ef9d6e83d97a2f68987) fix for applying defaults to camel-case args (@bcoe)
+
+### v3.3.0 (2015/02/24 00:49 +00:00)
+- [8bfe36d](https://github.com/bcoe/yargs/commit/8bfe36d7fb0f93a799ea3f4c756a7467c320f8c0) fix and document restart() command, as a tool for building nested CLIs (@bcoe)
+
+### v3.2.1 (2015/02/22 05:45 +00:00)
+- [49a6d18](https://github.com/bcoe/yargs/commit/49a6d1822a4ef9b1ea6f90cc366be60912628885) you can now provide a function that generates a default value (@bcoe)
+
+### v3.2.0 (2015/02/22 05:24 +00:00)
+- [7a55886](https://github.com/bcoe/yargs/commit/7a55886c9343cf71a20744ca5cdd56d2ea7412d5) improvements to yargs two-column text layout (@bcoe)
+- [b6ab513](https://github.com/bcoe/yargs/commit/b6ab5136a4c3fa6aa496f6b6360382e403183989) Tweak NPM version badge (@nylen)
+
+### v3.1.0 (2015/02/19 19:37 +00:00)
+- [9bd2379](https://github.com/bcoe/yargs/commit/9bd237921cf1b61fd9f32c0e6d23f572fc225861) version now accepts a function, making it easy to load version #s from a package.json (@bcoe)
+
+### v3.0.4 (2015/02/14 01:40 +00:00)
+- [0b7c19b](https://github.com/bcoe/yargs/commit/0b7c19beaecb747267ca4cc10e5cb2a8550bc4b7) various fixes for dot-notation handling (@bcoe)
+
+### v3.0.3 (2015/02/14 00:59 +00:00)
+- [c3f35e9](https://github.com/bcoe/yargs/commit/c3f35e99bd5a0d278073fcadd95e2d778616cc17) make sure dot-notation is applied to aliases (@bcoe)
+
+### 3.0.2 (2015/02/13 16:50 +00:00)
+- [74c8967](https://github.com/bcoe/yargs/commit/74c8967c340c204a0a7edf8a702b6f46c2705435) document epilog shorthand of epilogue. (@bcoe)
+- [670110f](https://github.com/bcoe/yargs/commit/670110fc01bedc4831b6fec6afac54517d5a71bc) any non-truthy value now causes check to fail see #76 (@bcoe)
+- [0d8f791](https://github.com/bcoe/yargs/commit/0d8f791a33c11ced4cd431ea8d3d3a337d456b56) finished implementing my wish-list of fetures for yargs 3.0. see #88 (@bcoe)
+- [5768447](https://github.com/bcoe/yargs/commit/5768447447c4c8e8304f178846206ce86540f063) fix coverage. (@bcoe)
+- [82e793f](https://github.com/bcoe/yargs/commit/82e793f3f61c41259eaacb67f0796aea2cf2aaa0) detect console width and perform word-wrapping. (@bcoe)
+- [67476b3](https://github.com/bcoe/yargs/commit/67476b37eea07fee55f23f35b9e0c7d76682b86d) refactor two-column table layout so that we can use it for examples and usage (@bcoe)
+- [4724cdf](https://github.com/bcoe/yargs/commit/4724cdfcc8e37ae1ca3dcce9d762f476e9ef4bb4) major refactor of index.js, in prep for 3.x release. (@bcoe)
+
+### v2.3.0 (2015/02/08 20:41 +00:00)
+- [d824620](https://github.com/bcoe/yargs/commit/d824620493df4e63664af1fe320764dd1a9244e6) allow for undefined boolean defaults (@ashi009)
+
+### v2.2.0 (2015/02/08 20:07 +00:00)
+- [d6edd98](https://github.com/bcoe/yargs/commit/d6edd9848826e7389ed1393858c45d03961365fd) in-prep for further refactoring, and a 3.x release I've shuffled some things around and gotten test-coverage to 100%. (@bcoe)
+
+### v2.1.2 (2015/02/08 06:05 +00:00)
+- [d640745](https://github.com/bcoe/yargs/commit/d640745a7b9f8d476e0223879d056d18d9c265c4) switch to path.relative (@bcoe)
+- [3bfd41f](https://github.com/bcoe/yargs/commit/3bfd41ff262a041f29d828b88936a79c63cad594) remove mocha.opts. (@bcoe)
+- [47a2f35](https://github.com/bcoe/yargs/commit/47a2f357091db70903a402d6765501c1d63f15fe) document using .string('_') for string ids. see #56 (@bcoe)
+- [#57](https://github.com/bcoe/yargs/pull/57) Merge pull request #57 from eush77/option-readme (@eush77)
+
+### v2.1.1 (2015/02/06 08:08 +00:00)
+- [01c6c61](https://github.com/bcoe/yargs/commit/01c6c61d67b4ebf88f41f0b32a345ec67f0ac17d) fix for #71, 'newAliases' of undefined (@bcoe)
+
+### v2.1.0 (2015/02/06 07:59 +00:00)
+- [6a1a3fa](https://github.com/bcoe/yargs/commit/6a1a3fa731958e26ccd56885f183dd8985cc828f) try to guess argument types, and apply sensible defaults see #73 (@bcoe)
+
+### v2.0.1 (2015/02/06 07:54 +00:00)
+- [96a06b2](https://github.com/bcoe/yargs/commit/96a06b2650ff1d085a52b7328d8bba614c20cc12) Fix for strange behavior with --sort option, see #51 (@bcoe)
+
+### v2.0.0 (2015/02/06 07:45 +00:00)
+- [0250517](https://github.com/bcoe/yargs/commit/0250517c9643e53f431b824e8ccfa54937414011) - [108fb84](https://github.com/bcoe/yargs/commit/108fb8409a3a63dcaf99d917fe4dfcfaa1de236d) fixed bug with boolean parsing, when bools separated by = see #66 (@bcoe)
+- [a465a59](https://github.com/bcoe/yargs/commit/a465a5915f912715738de890982e4f8395958b10) Add `files` field to the package.json (@shinnn)
+- [31043de](https://github.com/bcoe/yargs/commit/31043de7a38a17c4c97711f1099f5fb164334db3) fix for yargs.argv having the same keys added multiple times see #63 (@bcoe)
+- [2d68c5b](https://github.com/bcoe/yargs/commit/2d68c5b91c976431001c4863ce47c9297850f1ad) Disable process.exit calls using .exitProcess(false) (@cianclarke)
+- [45da9ec](https://github.com/bcoe/yargs/commit/45da9ec4c55a7bd394721bc6a1db0dabad7bc52a) Mention .option in README (@eush77)
+
+### v1.3.2 (2014/10/06 21:56 +00:00)
+- [b8d3472](https://github.com/bcoe/yargs/commit/b8d34725482e5821a3cc809c0df71378f282f526) 1.3.2 (@chevex)
+
+### list (2014/08/30 18:41 +00:00)
+- [fbc777f](https://github.com/bcoe/yargs/commit/fbc777f416eeefd37c84e44d27d7dfc7c1925721) Now that yargs is the successor to optimist, I'm changing the README language to be more universal. Pirate speak isn't very accessible to non-native speakers. (@chevex)
+- [a54d068](https://github.com/bcoe/yargs/commit/a54d0682ae2efc2394d407ab171cc8a8bbd135ea) version output will not print extra newline (@boneskull)
+- [1cef5d6](https://github.com/bcoe/yargs/commit/1cef5d62a9d6d61a3948a49574892e01932cc6ae) Added contributors section to package.json (@chrisn)
+- [cc295c0](https://github.com/bcoe/yargs/commit/cc295c0a80a2de267e0155b60d315fc4b6f7c709) Added 'require' and 'required' as synonyms for 'demand' (@chrisn)
+- [d0bf951](https://github.com/bcoe/yargs/commit/d0bf951d949066b6280101ed606593d079ee15c8) Updating minimist. (@chevex)
+- [c15f8e7](https://github.com/bcoe/yargs/commit/c15f8e7f245b261e542cf205ce4f4313630cbdb4) Fix #31 (bad interaction between camelCase options and strict mode) (@nylen)
+- [d991b9b](https://github.com/bcoe/yargs/commit/d991b9be687a68812dee1e3b185ba64b7778b82d) Added .help() and .version() methods (@chrisn)
+- [e8c8aa4](https://github.com/bcoe/yargs/commit/e8c8aa46268379357cb11e9fc34b8c403037724b) Added .showHelpOnFail() method (@chrisn)
+- [e855af4](https://github.com/bcoe/yargs/commit/e855af4a933ea966b5bbdd3c4c6397a4bac1a053) Allow boolean flag with .demand() (@chrisn)
+- [14dbec2](https://github.com/bcoe/yargs/commit/14dbec24fb7380683198e2b20c4deb8423e64bea) Fixes issue #22. Arguments are no longer printed to the console when using .config. (@chevex)
+- [bef74fc](https://github.com/bcoe/yargs/commit/bef74fcddc1544598a804f80d0a3728459f196bf) Informing users that Yargs is the official optimist successor. (@chevex)
+- [#24](https://github.com/bcoe/yargs/pull/24) Merge pull request #24 from chrisn/strict (@chrisn)
+- [889a2b2](https://github.com/bcoe/yargs/commit/889a2b28eb9768801b05163360a470d0fd6c8b79) Added requiresArg option, for options that require values (@chrisn)
+- [eb16369](https://github.com/bcoe/yargs/commit/eb163692262be1fe80b992fd8803d5923c5a9b18) Added .strict() method, to report error if unknown arguments are given (@chrisn)
+- [0471c3f](https://github.com/bcoe/yargs/commit/0471c3fd999e1ad4e6cded88b8aa02013b66d14f) Changed optimist to yargs in usage-options.js example (@chrisn)
+- [5c88f74](https://github.com/bcoe/yargs/commit/5c88f74e3cf031b17c54b4b6606c83e485ff520e) Change optimist to yargs in examples (@chrisn)
+- [66f12c8](https://github.com/bcoe/yargs/commit/66f12c82ba3c943e4de8ca862980e835da8ecb3a) Fix a couple of bad interactions between aliases and defaults (@nylen)
+- [8fa1d80](https://github.com/bcoe/yargs/commit/8fa1d80f14b03eb1f2898863a61f1d1615bceb50) Document second argument of usage(message, opts) (@Gobie)
+- [56e6528](https://github.com/bcoe/yargs/commit/56e6528cf674ff70d63083fb044ff240f608448e) For "--some-option", also set argv.someOption (@nylen)
+- [ed5f6d3](https://github.com/bcoe/yargs/commit/ed5f6d33f57ad1086b11c91b51100f7c6c7fa8ee) Finished porting unit tests to Mocha. (@chevex)
+
+### v1.0.15 (2014/02/05 23:18 +00:00)
+- [e2b1fc0](https://github.com/bcoe/yargs/commit/e2b1fc0c4a59cf532ae9b01b275e1ef57eeb64d2) 1.0.15 update to badges (@chevex)
+
+### v1.0.14 (2014/02/05 23:17 +00:00)
+- [f33bbb0](https://github.com/bcoe/yargs/commit/f33bbb0f00fe18960f849cc8e15a7428a4cd59b8) Revert "Fixed issue which caused .demand function not to work correctly." (@chevex)
+
+### v1.0.13 (2014/02/05 22:13 +00:00)
+- [6509e5e](https://github.com/bcoe/yargs/commit/6509e5e7dee6ef1a1f60eea104be0faa1a045075) Fixed issue which caused .demand function not to work correctly. (@chevex)
+
+### v1.0.12 (2013/12/13 00:09 +00:00)
+- [05eb267](https://github.com/bcoe/yargs/commit/05eb26741c9ce446b33ff006e5d33221f53eaceb) 1.0.12 (@chevex)
+
+### v1.0.11 (2013/12/13 00:07 +00:00)
+- [c1bde46](https://github.com/bcoe/yargs/commit/c1bde46e37318a68b87d17a50c130c861d6ce4a9) 1.0.11 (@chevex)
+
+### v1.0.10 (2013/12/12 23:57 +00:00)
+- [dfebf81](https://github.com/bcoe/yargs/commit/dfebf8164c25c650701528ee581ca483a99dc21c) Fixed formatting in README (@chevex)
+
+### v1.0.9 (2013/12/12 23:47 +00:00)
+- [0b4e34a](https://github.com/bcoe/yargs/commit/0b4e34af5e6d84a9dbb3bb6d02cd87588031c182) Update README.md (@chevex)
+
+### v1.0.8 (2013/12/06 16:36 +00:00)
+- [#1](https://github.com/bcoe/yargs/pull/1) fix error caused by check() see #1 (@martinheidegger)
+
+### v1.0.7 (2013/11/24 18:01 +00:00)
+- [a247d88](https://github.com/bcoe/yargs/commit/a247d88d6e46644cbb7303c18b1bb678fc132d72) Modified Pirate Joe image. (@chevex)
+
+### v1.0.6 (2013/11/23 19:21 +00:00)
+- [d7f69e1](https://github.com/bcoe/yargs/commit/d7f69e1d34bc929736a8bdccdc724583e21b7eab) Updated Pirate Joe image. (@chevex)
+
+### v1.0.5 (2013/11/23 19:09 +00:00)
+- [ece809c](https://github.com/bcoe/yargs/commit/ece809cf317cc659175e1d66d87f3ca68c2760be) Updated readme notice again. (@chevex)
+
+### v1.0.4 (2013/11/23 19:05 +00:00)
+- [9e81e81](https://github.com/bcoe/yargs/commit/9e81e81654028f83ba86ffc3ac772a0476084e5e) Updated README with a notice about yargs being a fork of optimist and what that implies. (@chevex)
+
+### v1.0.3 (2013/11/23 17:43 +00:00)
+- [65e7a78](https://github.com/bcoe/yargs/commit/65e7a782c86764944d63d084416aba9ee6019c5f) Changed some small wording in README.md. (@chevex)
+- [459e20e](https://github.com/bcoe/yargs/commit/459e20e539b366b85128dd281ccd42221e96c7da) Fix a bug in the options function, when string and boolean options weren't applied to aliases. (@shockone)
+
+### v1.0.2 (2013/11/23 09:46 +00:00)
+- [3d80ebe](https://github.com/bcoe/yargs/commit/3d80ebed866d3799224b6f7d596247186a3898a9) 1.0.2 (@chevex)
+
+### v1.0.1 (2013/11/23 09:39 +00:00)
+- [f80ff36](https://github.com/bcoe/yargs/commit/f80ff3642d580d4b68bf9f5a94277481bd027142) Updated image. (@chevex)
+
+### v1.0.0 (2013/11/23 09:33 +00:00)
+- [54e31d5](https://github.com/bcoe/yargs/commit/54e31d505f820b80af13644e460894b320bf25a3) Rebranded from optimist to yargs in the spirit of the fork :D (@chevex)
+- [4ebb6c5](https://github.com/bcoe/yargs/commit/4ebb6c59f44787db7c24c5b8fe2680f01a23f498) Added documentation for demandCount(). (@chevex)
+- [4561ce6](https://github.com/bcoe/yargs/commit/4561ce66dcffa95f49e8b4449b25b94cd68acb25) Simplified the error messages returned by .check(). (@chevex)
+- [661c678](https://github.com/bcoe/yargs/commit/661c67886f479b16254a830b7e1db3be29e6b7a6) Fixed an issue with demand not accepting a zero value. (@chevex)
+- [731dd3c](https://github.com/bcoe/yargs/commit/731dd3c37624790490bd6df4d5f1da8f4348279e) Add .fail(fn) so death isn't the only option. Should fix issue #39. (@chevex)
+- [fa15417](https://github.com/bcoe/yargs/commit/fa15417ff9e70dace0d726627a5818654824c1d8) Added a few missing 'return self' (@chevex)
+- [e655e4d](https://github.com/bcoe/yargs/commit/e655e4d99d1ae1d3695ef755d51c2de08d669761) Fix showing help in certain JS environments. (@chevex)
+- [a746a31](https://github.com/bcoe/yargs/commit/a746a31cd47c87327028e6ea33762d6187ec5c87) Better string representation of default values. (@chevex)
+- [6134619](https://github.com/bcoe/yargs/commit/6134619a7e90b911d5443230b644c5d447c1a68c) Implies: conditional demands (@chevex)
+- [046b93b](https://github.com/bcoe/yargs/commit/046b93b5d40a27367af4cb29726e4d781d934639) Added support for JSON config files. (@chevex)
+- [a677ec0](https://github.com/bcoe/yargs/commit/a677ec0a0ecccd99c75e571d03323f950688da03) Add .example(cmd, desc) feature. (@chevex)
+- [1bd4375](https://github.com/bcoe/yargs/commit/1bd4375e11327ba1687d4bb6e5e9f3c30c1be2af) Added 'defaults' as alias to 'default' so as to avoid usage of a reserved keyword. (@chevex)
+- [6b753c1](https://github.com/bcoe/yargs/commit/6b753c16ca09e723060e70b773b430323b29c45c) add .normalize(args..) support for normalizing paths (@chevex)
+- [33d7d59](https://github.com/bcoe/yargs/commit/33d7d59341d364f03d3a25f0a55cb99004dbbe4b) Customize error messages with demand(key, msg) (@chevex)
+- [647d37f](https://github.com/bcoe/yargs/commit/647d37f164c20f4bafbf67dd9db6cd6e2cd3b49f) Merge branch 'rewrite-duplicate-test' of github.com:isbadawi/node-optimist (@chevex)
+- [9059d1a](https://github.com/bcoe/yargs/commit/9059d1ad5e8aea686c2a01c89a23efdf929fff2e) Pass aliases object to check functions for greater versatility. (@chevex)
+- [623dc26](https://github.com/bcoe/yargs/commit/623dc26c7331abff2465ef8532e3418996d42fe6) Added ability to count boolean options and rolled minimist library back into project. (@chevex)
+- [49f0dce](https://github.com/bcoe/yargs/commit/49f0dcef35de4db544c3966350d36eb5838703f6) Fixed small typo. (@chevex)
+- [79ec980](https://github.com/bcoe/yargs/commit/79ec9806d9ca6eb0014cfa4b6d1849f4f004baf2) Removed dependency on wordwrap module. (@chevex)
+- [ea14630](https://github.com/bcoe/yargs/commit/ea14630feddd69d1de99dd8c0e08948f4c91f00a) Merge branch 'master' of github.com:chbrown/node-optimist (@chevex)
+- [2b75da2](https://github.com/bcoe/yargs/commit/2b75da2624061e0f4f3107d20303c06ec9054906) Merge branch 'master' of github.com:seanzhou1023/node-optimist (@chevex)
+- [d9bda11](https://github.com/bcoe/yargs/commit/d9bda1116e26f3b40e833ca9ca19263afea53565) Merge branch 'patch-1' of github.com:thefourtheye/node-optimist (@chevex)
+- [d6cc606](https://github.com/bcoe/yargs/commit/d6cc6064a4f1bea38a16a4430b8a1334832fbeff) Renamed README. (@chevex)
+- [9498d3f](https://github.com/bcoe/yargs/commit/9498d3f59acfb5e102826503e681623c3a64b178) Renamed readme and added .gitignore. (@chevex)
+- [bbd1fe3](https://github.com/bcoe/yargs/commit/bbd1fe37fefa366dde0fb3dc44d91fe8b28f57f5) Included examples for ```help``` and ```showHelp``` functions and fixed few formatting issues (@thefourtheye)
+- [37fea04](https://github.com/bcoe/yargs/commit/37fea0470a5796a0294c1dcfff68d8041650e622) .alias({}) behaves differently based on mapping direction when generating descriptions (@chbrown)
+- [855b20d](https://github.com/bcoe/yargs/commit/855b20d0be567ca121d06b30bea64001b74f3d6d) Documented function signatures are useful for dynamically typed languages. (@chbrown)
+
+### 0.6.0 (2013/06/25 08:48 +00:00)
+- [d37bfe0](https://github.com/bcoe/yargs/commit/d37bfe05ae6d295a0ab481efe4881222412791f4) all tests passing using minimist (@substack)
+- [76f1352](https://github.com/bcoe/yargs/commit/76f135270399d01f2bbc621e524a5966e5c422fd) all parse tests now passing (@substack)
+- [a7b6754](https://github.com/bcoe/yargs/commit/a7b6754276c38d1565479a5685c3781aeb947816) using minimist, some tests passing (@substack)
+- [6655688](https://github.com/bcoe/yargs/commit/66556882aa731cbbbe16cc4d42c85740a2e98099) Give credit where its due (@DeadAlready)
+- [602a2a9](https://github.com/bcoe/yargs/commit/602a2a92a459f93704794ad51b115bbb08b535ce) v0.5.3 - Remove wordwrap as dependency (@DeadAlready)
+
+### 0.5.2 (2013/05/31 03:46 +00:00)
+- [4497ca5](https://github.com/bcoe/yargs/commit/4497ca55e332760a37b866ec119ded347ca27a87) fixed the whitespace bug without breaking anything else (@substack)
+- [5a3dd1a](https://github.com/bcoe/yargs/commit/5a3dd1a4e0211a38613c6e02f61328e1031953fa) failing test for whitespace arg (@substack)
+
+### 0.5.1 (2013/05/30 07:17 +00:00)
+- [a20228f](https://github.com/bcoe/yargs/commit/a20228f62a454755dd07f628a7c5759113918327) fix parse() to work with functions before it (@substack)
+- [b13bd4c](https://github.com/bcoe/yargs/commit/b13bd4cac856a9821d42fa173bdb58f089365a7d) failing test for parse() with modifiers (@substack)
+
+### 0.5.0 (2013/05/18 21:59 +00:00)
+- [c474a64](https://github.com/bcoe/yargs/commit/c474a649231527915c222156e3b40806d365a87c) fixes for dash (@substack)
+
+### 0.4.0 (2013/04/13 19:03 +00:00)
+- [dafe3e1](https://github.com/bcoe/yargs/commit/dafe3e18d7c6e7c2d68e06559df0e5cbea3adb14) failing short test (@substack)
+
+### 0.3.7 (2013/04/04 04:07 +00:00)
+- [6c7a0ec](https://github.com/bcoe/yargs/commit/6c7a0ec94ce4199a505f0518b4d6635d4e47cc81) Fix for windows. On windows there is no _ in environment. (@hdf)
+
+### 0.3.6 (2013/04/04 04:04 +00:00)
+- [e72346a](https://github.com/bcoe/yargs/commit/e72346a727b7267af5aa008b418db89970873f05) Add support for newlines in -a="" arguments (@danielbeardsley)
+- [71e1fb5](https://github.com/bcoe/yargs/commit/71e1fb55ea9987110a669ac6ec12338cfff3821c) drop 0.4, add 0.8 to travis (@substack)
+
+### 0.3.5 (2012/10/10 11:09 +00:00)
+- [ee692b3](https://github.com/bcoe/yargs/commit/ee692b37554c70a0bb16389a50a26b66745cbbea) Fix parsing booleans (@vojtajina)
+- [5045122](https://github.com/bcoe/yargs/commit/5045122664c3f5b4805addf1be2148d5856f7ce8) set $0 properly in the tests (@substack)
+
+### 0.3.4 (2012/04/30 06:54 +00:00)
+- [f28c0e6](https://github.com/bcoe/yargs/commit/f28c0e62ca94f6e0bb2e6d82fc3d91a55e69b903) bump for string "true" params (@substack)
+- [8f44aeb](https://github.com/bcoe/yargs/commit/8f44aeb74121ddd689580e2bf74ef86a605e9bf2) Fix failing test for aliased booleans. (@coderarity)
+- [b9f7b61](https://github.com/bcoe/yargs/commit/b9f7b613b1e68e11e6c23fbda9e555a517dcc976) Add failing test for short aliased booleans. (@coderarity)
+
+### 0.3.3 (2012/04/30 06:45 +00:00)
+- [541bac8](https://github.com/bcoe/yargs/commit/541bac8dd787a5f1a5d28f6d8deb1627871705e7) Fixes #37.
+
+### 0.3.2 (2012/04/12 20:28 +00:00)
+- [3a0f014](https://github.com/bcoe/yargs/commit/3a0f014c1451280ac1c9caa1f639d31675586eec) travis badge (@substack)
+- [4fb60bf](https://github.com/bcoe/yargs/commit/4fb60bf17845f4ce3293f8ca49c9a1a7c736cfce) Fix boolean aliases. (@coderarity)
+- [f14dda5](https://github.com/bcoe/yargs/commit/f14dda546efc4fe06ace04d36919bfbb7634f79b) Adjusted package.json to use tap (@jfhbrook)
+- [88e5d32](https://github.com/bcoe/yargs/commit/88e5d32295be6e544c8d355ff84e355af38a1c74) test/usage.js no longer hangs (@jfhbrook)
+- [e1e740c](https://github.com/bcoe/yargs/commit/e1e740c27082f3ce84deca2093d9db2ef735d0e5) two tests for combined boolean/alias opts parsing (@jfhbrook)
+
+### 0.3.1 (2011/12/31 08:44 +00:00)
+- [d09b719](https://github.com/bcoe/yargs/commit/d09b71980ef711b6cf3918cd19beec8257e40e82) If "default" is set to false it was not passed on, fixed. (@wolframkriesing)
+
+### 0.3.0 (2011/12/09 06:03 +00:00)
+- [6e74aa7](https://github.com/bcoe/yargs/commit/6e74aa7b46a65773e20c0cb68d2d336d4a0d553d) bump and documented dot notation (@substack)
+
+### 0.2.7 (2011/10/20 02:25 +00:00)
+- [94adee2](https://github.com/bcoe/yargs/commit/94adee20e17b58d0836f80e8b9cdbe9813800916) argv._ can be told 'Hey! argv._! Don't be messing with my args.', and it WILL obey (@colinta)
+- [c46fdd5](https://github.com/bcoe/yargs/commit/c46fdd56a05410ae4a1e724a4820c82e77ff5469) optimistic critter image (@substack)
+- [5c95c73](https://github.com/bcoe/yargs/commit/5c95c73aedf4c7482bd423e10c545e86d7c8a125) alias options() to option() (@substack)
+- [f7692ea](https://github.com/bcoe/yargs/commit/f7692ea8da342850af819367833abb685fde41d8) [fix] Fix for parsing boolean edge case (@indexzero)
+- [d1f92d1](https://github.com/bcoe/yargs/commit/d1f92d1425bd7f356055e78621b30cdf9741a3c2)
+- [b01bda8](https://github.com/bcoe/yargs/commit/b01bda8d86e455bbf74ce497864cb8ab5b9fb847) [fix test] Update to ensure optimist is aware of default booleans. Associated tests included (@indexzero)
+- [aa753e7](https://github.com/bcoe/yargs/commit/aa753e7c54fb3a12f513769a0ff6d54aa0f63943) [dist test] Update devDependencies in package.json. Update test pathing to be more npm and require.paths future-proof (@indexzero)
+- [7bfce2f](https://github.com/bcoe/yargs/commit/7bfce2f3b3c98e6539e7549d35fbabced7e9341e) s/sys/util/ (@substack)
+- [d420a7a](https://github.com/bcoe/yargs/commit/d420a7a9c890d2cdb11acfaf3ea3f43bc3e39f41) update usage output (@substack)
+- [cf86eed](https://github.com/bcoe/yargs/commit/cf86eede2e5fc7495b6ec15e6d137d9ac814f075) some sage readme protips about parsing rules (@substack)
+- [5da9f7a](https://github.com/bcoe/yargs/commit/5da9f7a5c0e1758ec7c5801fb3e94d3f6e970513) documented all the methods finally (@substack)
+- [8ca6879](https://github.com/bcoe/yargs/commit/8ca6879311224b25933642987300f6a29de5c21b) fenced syntax highlighting (@substack)
+- [b72bacf](https://github.com/bcoe/yargs/commit/b72bacf1d02594778c1935405bc8137eb61761dc) right-alignment of wrapped extra params (@substack)
+- [2b980bf](https://github.com/bcoe/yargs/commit/2b980bf2656b4ee8fc5134dc5f56a48855c35198) now with .wrap() (@substack)
+- [d614f63](https://github.com/bcoe/yargs/commit/d614f639654057d1b7e35e3f5a306e88ec2ad1e4) don't show 'Options:' when there aren't any (@substack)
+- [691eda3](https://github.com/bcoe/yargs/commit/691eda354df97b5a86168317abcbcaabdc08a0fb) failing test for multi-aliasing (@substack)
+- [0826c9f](https://github.com/bcoe/yargs/commit/0826c9f462109feab2bc7a99346d22e72bf774b7) "Options:" > "options:" (@substack)
+- [72f7490](https://github.com/bcoe/yargs/commit/72f749025d01b7f295738ed370a669d885fbada0) [minor] Update formatting for `.showHelp()` (@indexzero)
+- [75aecce](https://github.com/bcoe/yargs/commit/75aeccea74329094072f95800e02c275e7d999aa) options works again, too lazy to write a proper test right now (@substack)
+- [f742e54](https://github.com/bcoe/yargs/commit/f742e5439817c662dc3bd8734ddd6467e6018cfd) line_count_options example, which breaks (@substack)
+- [4ca06b8](https://github.com/bcoe/yargs/commit/4ca06b8b4ea99b5d5714b315a2a8576bee6e5537) line count example (@substack)
+- [eeb8423](https://github.com/bcoe/yargs/commit/eeb8423e0a5ecc9dc3eb1e6df9f3f8c1c88f920b) remove self.argv setting in boolean (@substack)
+- [6903412](https://github.com/bcoe/yargs/commit/69034126804660af9cc20ea7f4457b50338ee3d7) removed camel case for now (@substack)
+- [5a0d88b](https://github.com/bcoe/yargs/commit/5a0d88bf23e9fa79635dd034e2a1aa992acc83cd) remove dead longest checking code (@substack)
+- [d782170](https://github.com/bcoe/yargs/commit/d782170babf7284b1aa34f5350df0dd49c373fa8) .help() too (@substack)
+- [622ec17](https://github.com/bcoe/yargs/commit/622ec17379bb5374fdbb190404c82bc600975791) rm old help generator (@substack)
+- [7c8baac](https://github.com/bcoe/yargs/commit/7c8baac4d66195e9f5158503ea9ebfb61153dab7) nub keys (@substack)
+- [8197785](https://github.com/bcoe/yargs/commit/8197785ad4762465084485b041abd722f69bf344) generate help message based on the previous calls, todo: nub (@substack)
+- [3ffbdc3](https://github.com/bcoe/yargs/commit/3ffbdc33c8f5e83d4ea2ac60575ce119570c7ede) stub out new showHelp, better checks (@substack)
+- [d4e21f5](https://github.com/bcoe/yargs/commit/d4e21f56a4830f7de841900d3c79756fb9886184) let .options() take single options too (@substack)
+- [3c4cf29](https://github.com/bcoe/yargs/commit/3c4cf2901a29bac119cca8e983028d8669230ec6) .options() is now heaps simpler (@substack)
+- [89f0d04](https://github.com/bcoe/yargs/commit/89f0d043cbccd302f10ab30c2069e05d2bf817c9) defaults work again, all tests pass (@substack)
+- [dd87333](https://github.com/bcoe/yargs/commit/dd8733365423006a6e4156372ebb55f98323af58) update test error messages, down to 2 failing tests (@substack)
+- [53f7bc6](https://github.com/bcoe/yargs/commit/53f7bc626b9875f2abdfc5dd7a80bde7f14143a3) fix for bools doubling up, passes the parse test again, others fail (@substack)
+- [2213e2d](https://github.com/bcoe/yargs/commit/2213e2ddc7263226fba717fb041dc3fde9bc2ee4) refactored for an argv getter, failing several tests (@substack)
+- [d1e7379](https://github.com/bcoe/yargs/commit/d1e737970f15c6c006bebdd8917706827ff2f0f2) just rescan for now, alias test passes (@substack)
+- [b2f8c99](https://github.com/bcoe/yargs/commit/b2f8c99cc477a8eb0fdf4cf178e1785b63185cfd) failing alias test (@substack)
+- [d0c0174](https://github.com/bcoe/yargs/commit/d0c0174daa144bfb6dc7290fdc448c393c475e15) .alias() (@substack)
+- [d85f431](https://github.com/bcoe/yargs/commit/d85f431ad7d07b058af3f2a57daa51495576c164) [api] Remove `.describe()` in favor of building upon the existing `.usage()` API (@indexzero)
+- [edbd527](https://github.com/bcoe/yargs/commit/edbd5272a8e213e71acd802782135c7f9699913a) [doc api] Add `.describe()`, `.options()`, and `.showHelp()` methods along with example. (@indexzero)
+- [be4902f](https://github.com/bcoe/yargs/commit/be4902ff0961ae8feb9093f2c0a4066463ded2cf) updates for coffee since it now does argv the node way (@substack)
+- [e24cb23](https://github.com/bcoe/yargs/commit/e24cb23798ee64e53b60815e7fda78b87f42390c) more general coffeescript detection (@substack)
+- [78ac753](https://github.com/bcoe/yargs/commit/78ac753e5d0ec32a96d39d893272afe989e42a4d) Don't trigger the CoffeeScript hack when running under node_g. (@papandreou)
+- [bcfe973](https://github.com/bcoe/yargs/commit/bcfe9731d7f90d4632281b8a52e8d76eb0195ae6) .string() but failing test (@substack)
+- [1987aca](https://github.com/bcoe/yargs/commit/1987aca28c7ba4e8796c07bbc547cb984804c826) test hex strings (@substack)
+- [ef36db3](https://github.com/bcoe/yargs/commit/ef36db32259b0b0d62448dc907c760e5554fb7e7) more keywords (@substack)
+- [cc53c56](https://github.com/bcoe/yargs/commit/cc53c56329960bed6ab077a79798e991711ba01d) Added camelCase function that converts --multi-word-option to camel case (so it becomes argv.multiWordOption). (@papandreou)
+- [60b57da](https://github.com/bcoe/yargs/commit/60b57da36797716e5783a633c6d5c79099016d45) fixed boolean bug by rescanning (@substack)
+- [dff6d07](https://github.com/bcoe/yargs/commit/dff6d078d97f8ac503c7d18dcc7b7a8c364c2883) boolean examples (@substack)
+- [0e380b9](https://github.com/bcoe/yargs/commit/0e380b92c4ef4e3c8dac1da18b5c31d85b1d02c9) boolean() with passing test (@substack)
+- [62644d4](https://github.com/bcoe/yargs/commit/62644d4bffbb8d1bbf0c2baf58a1d14a6359ef07) coffee compatibility with node regex for versions too (@substack)
+- [430fafc](https://github.com/bcoe/yargs/commit/430fafcf1683d23774772826581acff84b456827) argv._ fixed by fixing the coffee detection (@substack)
+- [343b8af](https://github.com/bcoe/yargs/commit/343b8afefd98af274ebe21b5a16b3a949ec5429f) whichNodeArgs test fails too (@substack)
+- [63df2f3](https://github.com/bcoe/yargs/commit/63df2f371f31e63d7f1dec2cbf0022a5f08da9d2) replicated mnot's bug in whichNodeEmpty test (@substack)
+- [35473a4](https://github.com/bcoe/yargs/commit/35473a4d93a45e5e7e512af8bb54ebb532997ae1) test for ./bin usage (@substack)
+- [13df151](https://github.com/bcoe/yargs/commit/13df151e44228eed10e5441c7cd163e086c458a4) don't coerce booleans to numbers (@substack)
+- [85f8007](https://github.com/bcoe/yargs/commit/85f8007e93b8be7124feea64b1f1916d8ba1894a) package bump for automatic number conversion (@substack)
+- [8f17014](https://github.com/bcoe/yargs/commit/8f170141cded4ccc0c6d67a849c5bf996aa29643) updated readme and examples with new auto-numberification goodness (@substack)
+- [73dc901](https://github.com/bcoe/yargs/commit/73dc9011ac968e39b55e19e916084a839391b506) auto number conversion works yay (@substack)
+- [bcec56b](https://github.com/bcoe/yargs/commit/bcec56b3d031e018064cbb691539ccc4f28c14ad) failing test for not-implemented auto numification (@substack)
+- [ebd2844](https://github.com/bcoe/yargs/commit/ebd2844d683feeac583df79af0e5124a7a7db04e) odd that eql doesn't check types careflly (@substack)
+- [fd854b0](https://github.com/bcoe/yargs/commit/fd854b02e512ce854b76386d395672a7969c1bc4) package author + keywords (@substack)
+- [656a1d5](https://github.com/bcoe/yargs/commit/656a1d5a1b7c0e49d72e80cb13f20671d56f76c6) updated readme with .default() stuff (@substack)
+- [cd7f8c5](https://github.com/bcoe/yargs/commit/cd7f8c55f0b82b79b690d14c5f806851236998a1) passing tests for new .default() behavior (@substack)
+- [932725e](https://github.com/bcoe/yargs/commit/932725e39ce65bc91a0385a5fab659a5fa976ac2) new default() thing for setting default key/values (@substack)
+- [4e6c7ab](https://github.com/bcoe/yargs/commit/4e6c7aba6374ac9ebc6259ecf91f13af7bce40e3) test for coffee usage (@substack)
+- [d54ffcc](https://github.com/bcoe/yargs/commit/d54ffccf2a5a905f51ed5108f7c647f35d64ae23) new --key value style with passing tests. NOTE: changes existing behavior (@substack)
+- [ed2a2d5](https://github.com/bcoe/yargs/commit/ed2a2d5d828100ebeef6385c0fb88d146a5cfe9b) package bump for summatix's coffee script fix (@substack)
+- [75a975e](https://github.com/bcoe/yargs/commit/75a975eed8430d28e2a79dc9e6d819ad545f4587) Added support for CoffeeScript (@summatix)
+- [56b2b1d](https://github.com/bcoe/yargs/commit/56b2b1de8d11f8a2b91979d8ae2d6db02d8fe64d) test coverage for the falsy check() usage (@substack)
+- [a4843a9](https://github.com/bcoe/yargs/commit/a4843a9f0e69ffb4afdf6a671d89eb6f218be35d) check bug fixed plus a handy string (@substack)
+- [857bd2d](https://github.com/bcoe/yargs/commit/857bd2db933a5aaa9cfecba0ced2dc9b415f8111) tests for demandCount, back up to 100% coverage (@substack)
+- [073b776](https://github.com/bcoe/yargs/commit/073b7768ebd781668ef05c13f9003aceca2f5c35) call demandCount from demand (@substack)
+- [4bd4b7a](https://github.com/bcoe/yargs/commit/4bd4b7a085c8b6ce1d885a0f486cc9865cee2db1) add demandCount to check for the number of arguments in the _ list (@marshall)
+- [b8689ac](https://github.com/bcoe/yargs/commit/b8689ac68dacf248119d242bba39a41cb0adfa07) Rebase checks. That will be its own module eventually. (@substack)
+- [e688370](https://github.com/bcoe/yargs/commit/e688370b576f0aa733c3f46183df69e1b561668e) a $0 like in perl (@substack)
+- [2e5e196](https://github.com/bcoe/yargs/commit/2e5e1960fc19afb21fb3293752316eaa8bcd3609) usage test hacking around process and console (@substack)
+- [fcc3521](https://github.com/bcoe/yargs/commit/fcc352163fbec6a1dfe8caf47a0df39de24fe016) description pun (@substack)
+- [87a1fe2](https://github.com/bcoe/yargs/commit/87a1fe29037ca2ca5fefda85141aaeb13e8ce761) mit/x11 license (@substack)
+- [8d089d2](https://github.com/bcoe/yargs/commit/8d089d24cd687c0bde3640a96c09b78f884900dd) bool example is more consistent and also shows off short option grouping (@substack)
+- [448d747](https://github.com/bcoe/yargs/commit/448d7473ac68e8e03d8befc9457b0d9e21725be0) start of the readme and examples (@substack)
+- [da74dea](https://github.com/bcoe/yargs/commit/da74dea799a9b59dbf022cbb8001bfdb0d52eec9) more tests for long and short captures (@substack)
+- [ab6387e](https://github.com/bcoe/yargs/commit/ab6387e6769ca4af82ca94c4c67c7319f0d9fcfa) silly bug in the tests with s/not/no/, all tests pass now (@substack)
+- [102496a](https://github.com/bcoe/yargs/commit/102496a319e8e06f6550d828fc2f72992c7d9ecc) hack an instance for process.argv onto Argv so the export can be called to create an instance or used for argv, which is the most common case (@substack)
+- [a01caeb](https://github.com/bcoe/yargs/commit/a01caeb532546d19f68f2b2b87f7036cfe1aaedd) divide example (@substack)
+- [443da55](https://github.com/bcoe/yargs/commit/443da55736acbaf8ff8b04d1b9ce19ab016ddda2) start of the lib with a package.json (@substack)
diff --git a/helloworld/node_modules/yargs/LICENSE b/helloworld/node_modules/yargs/LICENSE
new file mode 100755
index 0000000..747ab11
--- /dev/null
+++ b/helloworld/node_modules/yargs/LICENSE
@@ -0,0 +1,22 @@
+Copyright 2010 James Halliday (mail@substack.net)
+Modified work Copyright 2014 Contributors (ben@npmjs.com)
+
+This project is free software released under the MIT/X11 license:
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/helloworld/node_modules/yargs/README.md b/helloworld/node_modules/yargs/README.md
new file mode 100755
index 0000000..154ed80
--- /dev/null
+++ b/helloworld/node_modules/yargs/README.md
@@ -0,0 +1,1981 @@
+  yargs
+========
+
+Yargs be a node.js library fer hearties tryin' ter parse optstrings.
+
+With yargs, ye be havin' a map that leads straight to yer treasure! Treasure of course, being a simple option hash.
+
+[![Build Status][travis-image]][travis-url]
+[![Coverage Status][coveralls-image]][coveralls-url]
+[![NPM version][npm-image]][npm-url]
+[![Windows Tests][windows-image]][windows-url]
+[![js-standard-style][standard-image]][standard-url]
+[![standard-version][standard-version-image]][standard-version-url]
+[![Gitter][gitter-image]][gitter-url]
+
+> Yargs is the official successor to optimist. Please feel free to submit issues and pull requests. If you'd like to contribute and don't know where to start, have a look at [the issue list](https://github.com/yargs/yargs/issues) :)
+
+examples
+========
+
+With yargs, the options be just a hash!
+-------------------------------------------------------------------
+
+plunder.js:
+
+````javascript
+#!/usr/bin/env node
+var argv = require('yargs').argv;
+
+if (argv.ships > 3 && argv.distance < 53.5) {
+    console.log('Plunder more riffiwobbles!');
+} else {
+    console.log('Retreat from the xupptumblers!');
+}
+````
+
+***
+
+    $ ./plunder.js --ships=4 --distance=22
+    Plunder more riffiwobbles!
+
+    $ ./plunder.js --ships 12 --distance 98.7
+    Retreat from the xupptumblers!
+
+![Joe was one optimistic pirate.](https://i.imgur.com/4WFGVJ9.png)
+
+But don't walk the plank just yet! There be more! You can do short options:
+-------------------------------------------------
+
+short.js:
+
+````javascript
+#!/usr/bin/env node
+var argv = require('yargs').argv;
+console.log('(%d,%d)', argv.x, argv.y);
+````
+
+***
+
+    $ ./short.js -x 10 -y 21
+    (10,21)
+
+And booleans, both long, short, and even grouped:
+----------------------------------
+
+bool.js:
+
+````javascript
+#!/usr/bin/env node
+var argv = require('yargs').argv;
+
+if (argv.s) {
+    process.stdout.write(argv.fr ? 'Le perroquet dit: ' : 'The parrot says: ');
+}
+console.log(
+    (argv.fr ? 'couac' : 'squawk') + (argv.p ? '!' : '')
+);
+````
+
+***
+
+    $ ./bool.js -s
+    The parrot says: squawk
+
+    $ ./bool.js -sp
+    The parrot says: squawk!
+
+    $ ./bool.js -sp --fr
+    Le perroquet dit: couac!
+
+And non-hyphenated options too! Just use `argv._`!
+-------------------------------------------------
+
+nonopt.js:
+
+````javascript
+#!/usr/bin/env node
+var argv = require('yargs').argv;
+console.log('(%d,%d)', argv.x, argv.y);
+console.log(argv._);
+````
+
+***
+
+    $ ./nonopt.js -x 6.82 -y 3.35 rum
+    (6.82,3.35)
+    [ 'rum' ]
+
+    $ ./nonopt.js "me hearties" -x 0.54 yo -y 1.12 ho
+    (0.54,1.12)
+    [ 'me hearties', 'yo', 'ho' ]
+
+Yargs even counts your booleans!
+----------------------------------------------------------------------
+
+count.js:
+
+````javascript
+#!/usr/bin/env node
+var argv = require('yargs')
+    .count('verbose')
+    .alias('v', 'verbose')
+    .argv;
+
+VERBOSE_LEVEL = argv.verbose;
+
+function WARN()  { VERBOSE_LEVEL >= 0 && console.log.apply(console, arguments); }
+function INFO()  { VERBOSE_LEVEL >= 1 && console.log.apply(console, arguments); }
+function DEBUG() { VERBOSE_LEVEL >= 2 && console.log.apply(console, arguments); }
+
+WARN("Showing only important stuff");
+INFO("Showing semi-important stuff too");
+DEBUG("Extra chatty mode");
+````
+
+***
+    $ node count.js
+    Showing only important stuff
+
+    $ node count.js -v
+    Showing only important stuff
+    Showing semi-important stuff too
+
+    $ node count.js -vv
+    Showing only important stuff
+    Showing semi-important stuff too
+    Extra chatty mode
+
+    $ node count.js -v --verbose
+    Showing only important stuff
+    Showing semi-important stuff too
+    Extra chatty mode
+
+Tell users how to use yer options and make demands.
+-------------------------------------------------
+
+area.js:
+
+````javascript
+#!/usr/bin/env node
+var argv = require('yargs')
+    .usage('Usage: $0 -w [num] -h [num]')
+    .demandOption(['w','h'])
+    .argv;
+
+console.log("The area is:", argv.w * argv.h);
+````
+
+***
+
+    $ ./area.js -w 55 -h 11
+    The area is: 605
+
+    $ node ./area.js -w 4.91 -w 2.51
+    Usage: area.js -w [num] -h [num]
+
+    Options:
+      -w  [required]
+      -h  [required]
+
+    Missing required arguments: h
+
+After yer demands have been met, demand more! Ask for non-hyphenated arguments!
+-----------------------------------------
+
+demand_count.js:
+
+````javascript
+#!/usr/bin/env node
+var argv = require('yargs')
+    .demandCommand(2)
+    .argv;
+console.dir(argv);
+````
+
+***
+
+	$ ./demand_count.js a
+
+	Not enough non-option arguments: got 1, need at least 2
+
+	$ ./demand_count.js a b
+	{ _: [ 'a', 'b' ], '$0': 'demand_count.js' }
+
+	$ ./demand_count.js a b c
+	{ _: [ 'a', 'b', 'c' ], '$0': 'demand_count.js' }
+
+EVEN MORE SHIVER ME TIMBERS!
+------------------
+
+default_singles.js:
+
+````javascript
+#!/usr/bin/env node
+var argv = require('yargs')
+    .default('x', 10)
+    .default('y', 10)
+    .argv
+;
+console.log(argv.x + argv.y);
+````
+
+***
+
+    $ ./default_singles.js -x 5
+    15
+
+default_hash.js:
+
+````javascript
+#!/usr/bin/env node
+var argv = require('yargs')
+    .default({ x : 10, y : 10 })
+    .argv
+;
+console.log(argv.x + argv.y);
+````
+
+***
+
+    $ ./default_hash.js -y 7
+    17
+
+And if you really want to get all descriptive about it...
+---------------------------------------------------------
+
+boolean_single.js:
+
+````javascript
+#!/usr/bin/env node
+var argv = require('yargs')
+    .boolean('v')
+    .argv
+;
+console.dir(argv.v);
+console.dir(argv._);
+````
+
+***
+
+    $ ./boolean_single.js -v "me hearties" yo ho
+    true
+    [ 'me hearties', 'yo', 'ho' ]
+
+
+boolean_double.js:
+
+````javascript
+#!/usr/bin/env node
+var argv = require('yargs')
+    .boolean(['x','y','z'])
+    .argv
+;
+console.dir([ argv.x, argv.y, argv.z ]);
+console.dir(argv._);
+````
+
+***
+
+    $ ./boolean_double.js -x -z one two three
+    [ true, false, true ]
+    [ 'one', 'two', 'three' ]
+
+Yargs is here to help you...
+---------------------------
+
+Ye can describe parameters fer help messages and set aliases. Yargs figures
+out how ter format a handy help string automatically.
+
+line_count.js:
+
+````javascript
+#!/usr/bin/env node
+var argv = require('yargs')
+    .usage('Usage: $0 <command> [options]')
+    .command('count', 'Count the lines in a file')
+    .example('$0 count -f foo.js', 'count the lines in the given file')
+    .alias('f', 'file')
+    .nargs('f', 1)
+    .describe('f', 'Load a file')
+    .demandOption(['f'])
+    .help('h')
+    .alias('h', 'help')
+    .epilog('copyright 2015')
+    .argv;
+
+var fs = require('fs');
+var s = fs.createReadStream(argv.file);
+
+var lines = 0;
+s.on('data', function (buf) {
+    lines += buf.toString().match(/\n/g).length;
+});
+
+s.on('end', function () {
+    console.log(lines);
+});
+````
+
+***
+    $ node line_count.js count
+    Usage: line_count.js <command> [options]
+
+    Commands:
+      count    Count the lines in a file
+
+    Options:
+      -f, --file  Load a file        [required]
+      -h, --help  Show help           [boolean]
+
+    Examples:
+      line_count.js count -f foo.js  count the lines in the given file
+
+    copyright 2015
+
+    Missing required arguments: f
+
+    $ node line_count.js count --file line_count.js
+    26
+
+    $ node line_count.js count -f line_count.js
+    26
+
+methods
+=======
+
+By itself,
+
+````javascript
+require('yargs').argv
+````
+
+will use the `process.argv` array to construct the `argv` object.
+
+You can pass in the `process.argv` yourself:
+
+````javascript
+require('yargs')([ '-x', '1', '-y', '2' ]).argv
+````
+
+or use `.parse()` to do the same thing:
+
+````javascript
+require('yargs').parse([ '-x', '1', '-y', '2' ])
+````
+
+The rest of these methods below come in just before the terminating `.argv`.
+
+<a name="alias"></a>.alias(key, alias)
+------------------
+
+Set key names as equivalent such that updates to a key will propagate to aliases
+and vice-versa.
+
+Optionally `.alias()` can take an object that maps keys to aliases.
+Each key of this object should be the canonical version of the option, and each
+value should be a string or an array of strings.
+
+.argv
+-----
+
+Get the arguments as a plain old object.
+
+Arguments without a corresponding flag show up in the `argv._` array.
+
+The script name or node command is available at `argv.$0` similarly to how `$0`
+works in bash or perl.
+
+If `yargs` is executed in an environment that embeds node and there's no script name (e.g.
+[Electron](http://electron.atom.io/) or [nw.js](http://nwjs.io/)), it will ignore the first parameter since it
+expects it to be the script name. In order to override this behavior, use `.parse(process.argv.slice(1))`
+instead of `.argv` and the first parameter won't be ignored.
+
+<a name="array"></a>.array(key)
+----------
+
+Tell the parser to interpret `key` as an array. If `.array('foo')` is set,
+`--foo foo bar` will be parsed as `['foo', 'bar']` rather than as `'foo'`.
+
+<a name="boolean"></a>.boolean(key)
+-------------
+
+Interpret `key` as a boolean. If a non-flag option follows `key` in
+`process.argv`, that string won't get set as the value of `key`.
+
+`key` will default to `false`, unless a `default(key, undefined)` is
+explicitly set.
+
+If `key` is an array, interpret all the elements as booleans.
+
+.check(fn)
+----------
+
+Check that certain conditions are met in the provided arguments.
+
+`fn` is called with two arguments, the parsed `argv` hash and an array of options and their aliases.
+
+If `fn` throws or returns a non-truthy value, show the thrown error, usage information, and
+exit.
+
+<a name="choices"></a>.choices(key, choices)
+----------------------
+
+Limit valid values for `key` to a predefined set of `choices`, given as an array
+or as an individual value.
+
+```js
+var argv = require('yargs')
+  .alias('i', 'ingredient')
+  .describe('i', 'choose your sandwich ingredients')
+  .choices('i', ['peanut-butter', 'jelly', 'banana', 'pickles'])
+  .help('help')
+  .argv
+```
+
+If this method is called multiple times, all enumerated values will be merged
+together. Choices are generally strings or numbers, and value matching is
+case-sensitive.
+
+Optionally `.choices()` can take an object that maps multiple keys to their
+choices.
+
+Choices can also be specified as `choices` in the object given to `option()`.
+
+```js
+var argv = require('yargs')
+  .option('size', {
+    alias: 's',
+    describe: 'choose a size',
+    choices: ['xs', 's', 'm', 'l', 'xl']
+  })
+  .argv
+```
+
+<a name="coerce"></a>.coerce(key, fn)
+----------------
+
+Provide a synchronous function to coerce or transform the value(s) given on the
+command line for `key`.
+
+The coercion function should accept one argument, representing the parsed value
+from the command line, and should return a new value or throw an error. The
+returned value will be used as the value for `key` (or one of its aliases) in
+`argv`.
+
+If the function throws, the error will be treated as a validation
+failure, delegating to either a custom [`.fail()`](#fail) handler or printing
+the error message in the console.
+
+Coercion will be applied to a value after
+all other modifications, such as [`.normalize()`](#normalize).
+
+_Examples:_
+
+```js
+var argv = require('yargs')
+  .coerce('file', function (arg) {
+    return require('fs').readFileSync(arg, 'utf8')
+  })
+  .argv
+```
+
+Optionally `.coerce()` can take an object that maps several keys to their
+respective coercion function.
+
+```js
+var argv = require('yargs')
+  .coerce({
+    date: Date.parse,
+    json: JSON.parse
+  })
+  .argv
+```
+
+You can also map the same function to several keys at one time. Just pass an
+array of keys as the first argument to `.coerce()`:
+
+```js
+var path = require('path')
+var argv = require('yargs')
+  .coerce(['src', 'dest'], path.resolve)
+  .argv
+```
+
+If you are using dot-notion or arrays, .e.g., `user.email` and `user.password`,
+coercion will be applied to the final object that has been parsed:
+
+```js
+// --user.name Batman --user.password 123
+// gives us: {name: 'batman', password: '[SECRET]'}
+var argv = require('yargs')
+  .option('user')
+  .coerce('user', opt => {
+    opt.name = opt.name.toLowerCase()
+    opt.password = '[SECRET]'
+    return opt
+  })
+  .argv
+```
+
+.command(cmd, desc, [builder], [handler])
+-----------------------------------------
+.command(cmd, desc, [module])
+-----------------------------
+.command(module)
+----------------
+
+Define the commands exposed by your application.
+
+`cmd` should be a string representing the command or an array of strings
+representing the command and its aliases. Read more about command aliases in the
+subsection below.
+
+Use `desc` to provide a description for each command your application accepts (the
+values stored in `argv._`).  Set `desc` to `false` to create a hidden command.
+Hidden commands don't show up in the help output and aren't available for
+completion.
+
+Optionally, you can provide a `builder` object to give hints about the
+options that your command accepts:
+
+```js
+yargs
+  .command('get', 'make a get HTTP request', {
+    url: {
+      alias: 'u',
+      default: 'http://yargs.js.org/'
+    }
+  })
+  .help()
+  .argv
+```
+
+Note that commands will not automatically inherit configuration _or_ options
+of their parent context. This means you'll have to re-apply configuration
+if necessary, and make options global manually using the [global](#global) method.
+
+Additionally, the [`help`](#help) and [`version`](#version)
+options (if used) **always** apply globally, just like the
+[`.wrap()`](#wrap) configuration.
+
+`builder` can also be a function. This function is executed
+with a `yargs` instance, and can be used to provide _advanced_ command specific help:
+
+```js
+yargs
+  .command('get', 'make a get HTTP request', function (yargs) {
+    return yargs.option('url', {
+      alias: 'u',
+      default: 'http://yargs.js.org/'
+    })
+  })
+  .help()
+  .argv
+```
+
+You can also provide a handler function, which will be executed with the
+parsed `argv` object:
+
+```js
+yargs
+  .command(
+    'get',
+    'make a get HTTP request',
+    function (yargs) {
+      return yargs.option('u', {
+        alias: 'url',
+        describe: 'the URL to make an HTTP request to'
+      })
+    },
+    function (argv) {
+      console.log(argv.url)
+    }
+  )
+  .help()
+  .argv
+```
+
+### Positional Arguments
+
+Commands can accept _optional_ and _required_ positional arguments. Required
+positional arguments take the form `<foo>`, and optional arguments
+take the form `[bar]`. The parsed positional arguments will be populated in
+`argv`:
+
+```js
+yargs.command('get <source> [proxy]', 'make a get HTTP request')
+  .help()
+  .argv
+```
+
+#### Positional Argument Aliases
+
+Aliases can be provided for positional arguments using the `|` character.
+As an example, suppose our application allows either a username _or_
+an email as the first argument:
+
+```js
+yargs.command('get <username|email> [password]', 'fetch a user by username or email.')
+  .help()
+  .argv
+```
+
+In this way, both `argv.username` and `argv.email` would be populated with the
+same value when the command is executed.
+
+#### Variadic Positional Arguments
+
+The last positional argument can optionally accept an array of
+values, by using the `..` operator:
+
+```js
+yargs.command('download <url> [files..]', 'download several files')
+  .help()
+  .argv
+```
+
+### Command Execution
+
+When a command is given on the command line, yargs will execute the following:
+
+1. push the command into the current context
+2. reset non-global configuration
+3. apply command configuration via the `builder`, if given
+4. parse and validate args from the command line, including positional args
+5. if validation succeeds, run the `handler` function, if given
+6. pop the command from the current context
+
+### Command Aliases
+
+You can define aliases for a command by putting the command and all of its
+aliases into an array.
+
+Alternatively, a command module may specify an `aliases` property, which may be
+a string or an array of strings. All aliases defined via the `command` property
+and the `aliases` property will be concatenated together.
+
+The first element in the array is considered the canonical command, which may
+define positional arguments, and the remaining elements in the array are
+considered aliases. Aliases inherit positional args from the canonical command,
+and thus any positional args defined in the aliases themselves are ignored.
+
+If either the canonical command or any of its aliases are given on the command
+line, the command will be executed.
+
+```js
+#!/usr/bin/env node
+require('yargs')
+  .command(['start [app]', 'run', 'up'], 'Start up an app', {}, (argv) => {
+    console.log('starting up the', argv.app || 'default', 'app')
+  })
+  .command({
+    command: 'configure <key> [value]',
+    aliases: ['config', 'cfg'],
+    desc: 'Set a config variable',
+    builder: (yargs) => yargs.default('value', 'true'),
+    handler: (argv) => {
+      console.log(`setting ${argv.key} to ${argv.value}`)
+    }
+  })
+  .demandCommand(1)
+  .help()
+  .wrap(72)
+  .argv
+```
+
+```
+$ ./svc.js help
+Commands:
+  start [app]              Start up an app            [aliases: run, up]
+  configure <key> [value]  Set a config variable  [aliases: config, cfg]
+
+Options:
+  --help  Show help                                            [boolean]
+
+$ ./svc.js cfg concurrency 4
+setting concurrency to 4
+
+$ ./svc.js run web
+starting up the web app
+```
+
+### Providing a Command Module
+
+For complicated commands you can pull the logic into a module. A module
+simply needs to export:
+
+* `exports.command`: string (or array of strings) that executes this command when given on the command line, first string may contain positional args
+* `exports.aliases`: array of strings (or a single string) representing aliases of `exports.command`, positional args defined in an alias are ignored
+* `exports.describe`: string used as the description for the command in help text, use `false` for a hidden command
+* `exports.builder`: object declaring the options the command accepts, or a function accepting and returning a yargs instance
+* `exports.handler`: a function which will be passed the parsed argv.
+
+```js
+// my-module.js
+exports.command = 'get <source> [proxy]'
+
+exports.describe = 'make a get HTTP request'
+
+exports.builder = {
+  banana: {
+    default: 'cool'
+  },
+  batman: {
+    default: 'sad'
+  }
+}
+
+exports.handler = function (argv) {
+  // do something with argv.
+}
+```
+
+You then register the module like so:
+
+```js
+yargs.command(require('my-module'))
+  .help()
+  .argv
+```
+
+Or if the module does not export `command` and `describe` (or if you just want to override them):
+
+```js
+yargs.command('get <source> [proxy]', 'make a get HTTP request', require('my-module'))
+  .help()
+  .argv
+```
+
+.commandDir(directory, [opts])
+------------------------------
+
+Apply command modules from a directory relative to the module calling this method.
+
+This allows you to organize multiple commands into their own modules under a
+single directory and apply all of them at once instead of calling
+`.command(require('./dir/module'))` multiple times.
+
+By default, it ignores subdirectories. This is so you can use a directory
+structure to represent your command hierarchy, where each command applies its
+subcommands using this method in its builder function. See the example below.
+
+Note that yargs assumes all modules in the given directory are command modules
+and will error if non-command modules are encountered. In this scenario, you
+can either move your module to a different directory or use the `exclude` or
+`visit` option to manually filter it out. More on that below.
+
+`directory` is a relative directory path as a string (required).
+
+`opts` is an options object (optional). The following options are valid:
+
+- `recurse`: boolean, default `false`
+
+    Look for command modules in all subdirectories and apply them as a flattened
+    (non-hierarchical) list.
+
+- `extensions`: array of strings, default `['js']`
+
+    The types of files to look for when requiring command modules.
+
+- `visit`: function
+
+    A synchronous function called for each command module encountered. Accepts
+    `commandObject`, `pathToFile`, and `filename` as arguments. Returns
+    `commandObject` to include the command; any falsy value to exclude/skip it.
+
+- `include`: RegExp or function
+
+    Whitelist certain modules. See [`require-directory` whitelisting](https://www.npmjs.com/package/require-directory#whitelisting) for details.
+
+- `exclude`: RegExp or function
+
+    Blacklist certain modules. See [`require-directory` blacklisting](https://www.npmjs.com/package/require-directory#blacklisting) for details.
+
+### Example command hierarchy using `.commandDir()`
+
+Desired CLI:
+
+```sh
+$ myapp --help
+$ myapp init
+$ myapp remote --help
+$ myapp remote add base http://yargs.js.org
+$ myapp remote prune base
+$ myapp remote prune base fork whatever
+```
+
+Directory structure:
+
+```
+myapp/
+├─ cli.js
+└─ cmds/
+   ├─ init.js
+   ├─ remote.js
+   └─ remote_cmds/
+      ├─ add.js
+      └─ prune.js
+```
+
+cli.js:
+
+```js
+#!/usr/bin/env node
+require('yargs')
+  .commandDir('cmds')
+  .demandCommand(1)
+  .help()
+  .argv
+```
+
+cmds/init.js:
+
+```js
+exports.command = 'init [dir]'
+exports.desc = 'Create an empty repo'
+exports.builder = {
+  dir: {
+    default: '.'
+  }
+}
+exports.handler = function (argv) {
+  console.log('init called for dir', argv.dir)
+}
+```
+
+cmds/remote.js:
+
+```js
+exports.command = 'remote <command>'
+exports.desc = 'Manage set of tracked repos'
+exports.builder = function (yargs) {
+  return yargs.commandDir('remote_cmds')
+}
+exports.handler = function (argv) {}
+```
+
+cmds/remote_cmds/add.js:
+
+```js
+exports.command = 'add <name> <url>'
+exports.desc = 'Add remote named <name> for repo at url <url>'
+exports.builder = {}
+exports.handler = function (argv) {
+  console.log('adding remote %s at url %s', argv.name, argv.url)
+}
+```
+
+cmds/remote_cmds/prune.js:
+
+```js
+exports.command = 'prune <name> [names..]'
+exports.desc = 'Delete tracked branches gone stale for remotes'
+exports.builder = {}
+exports.handler = function (argv) {
+  console.log('pruning remotes %s', [].concat(argv.name).concat(argv.names).join(', '))
+}
+```
+
+.completion([cmd], [description], [fn])
+---------------------------------------
+
+Enable bash-completion shortcuts for commands and options.
+
+`cmd`: When present in `argv._`, will result in the `.bashrc` completion script
+being outputted. To enable bash completions, concat the generated script to your
+`.bashrc` or `.bash_profile`.
+
+`description`: Provide a description in your usage instructions for the command
+that generates bash completion scripts.
+
+`fn`: Rather than relying on yargs' default completion functionality, which
+shiver me timbers is pretty awesome, you can provide your own completion
+method.
+
+If invoked without parameters, `.completion()` will make `completion` the command to output
+the completion script.
+
+```js
+var argv = require('yargs')
+  .completion('completion', function(current, argv) {
+    // 'current' is the current command being completed.
+    // 'argv' is the parsed arguments so far.
+    // simply return an array of completions.
+    return [
+      'foo',
+      'bar'
+    ];
+  })
+  .argv;
+```
+
+You can also provide asynchronous completions.
+
+```js
+var argv = require('yargs')
+  .completion('completion', function(current, argv, done) {
+    setTimeout(function() {
+      done([
+        'apple',
+        'banana'
+      ]);
+    }, 500);
+  })
+  .argv;
+```
+
+But wait, there's more! You can return an asynchronous promise.
+
+```js
+var argv = require('yargs')
+  .completion('completion', function(current, argv, done) {
+    return new Promise(function (resolve, reject) {
+      setTimeout(function () {
+        resolve(['apple', 'banana'])
+      }, 10)
+    })
+  })
+  .argv;
+```
+
+<a name="config"></a>.config([key], [description], [parseFn])
+-------------------------------------------------------------
+.config(object)
+---------------
+
+Tells the parser that if the option specified by `key` is passed in, it
+should be interpreted as a path to a JSON config file. The file is loaded
+and parsed, and its properties are set as arguments. Because the file is
+loaded using Node's require(), the filename MUST end in `.json` to be
+interpreted correctly.
+
+If invoked without parameters, `.config()` will make `--config` the option to pass the JSON config file.
+
+An optional `description` can be provided to customize the config (`key`) option
+in the usage string.
+
+An optional `parseFn` can be used to provide a custom parser. The parsing
+function must be synchronous, and should return an object containing
+key value pairs or an error.
+
+```js
+var argv = require('yargs')
+  .config('settings', function (configPath) {
+    return JSON.parse(fs.readFileSync(configPath, 'utf-8'))
+  })
+  .argv
+```
+
+You can also pass an explicit configuration `object`, it will be parsed
+and its properties will be set as arguments.
+
+```js
+var argv = require('yargs')
+  .config({foo: 1, bar: 2})
+  .argv
+console.log(argv)
+```
+
+```
+$ node test.js
+{ _: [],
+  foo: 1,
+  bar: 2,
+  '$0': 'test.js' }
+```
+
+<a name="conflicts"></a>.conflicts(x, y)
+----------------------------------------------
+
+Given the key `x` is set, the key `y` must not be set.
+
+Optionally `.conflicts()` can accept an object specifying multiple conflicting keys.
+
+<a name="count"></a>.count(key)
+------------
+
+Interpret `key` as a boolean flag, but set its parsed value to the number of
+flag occurrences rather than `true` or `false`. Default value is thus `0`.
+
+<a name="default"></a>.default(key, value, [description])
+---------------------------------------------------------
+.defaults(key, value, [description])
+------------------------------------
+
+**Note:** The `.defaults()` alias is deprecated. It will be
+removed in the next major version.
+
+Set `argv[key]` to `value` if no option was specified in `process.argv`.
+
+Optionally `.default()` can take an object that maps keys to default values.
+
+But wait, there's more! The default value can be a `function` which returns
+a value. The name of the function will be used in the usage string:
+
+```js
+var argv = require('yargs')
+  .default('random', function randomValue() {
+    return Math.random() * 256;
+  }).argv;
+```
+
+Optionally, `description` can also be provided and will take precedence over
+displaying the value in the usage instructions:
+
+```js
+.default('timeout', 60000, '(one-minute)')
+```
+
+<a name="demand"></a>.demand(count, [max], [msg]) [DEPRECATED]
+--------------------
+
+`demand()` has been deprecated, please instead see [`demandOption()`](#demandOption) and
+[`demandCommand()`](#demandCommand).
+
+<a name="demandOption"></a>.demandOption(key, [msg | boolean])
+------------------------------
+.demandOption(key, msg)
+------------------------------
+
+If `key` is a string, show the usage information and exit if `key` wasn't
+specified in `process.argv`.
+
+If `key` is an array, demand each element.
+
+If a `msg` string is given, it will be printed when the argument is missing, instead of the standard error message.
+
+```javascript
+// demand an array of keys to be provided
+require('yargs')
+  .option('run', {
+    alias: 'r',
+    describe: 'run your program'
+  })
+  .option('path', {
+    alias: 'p',
+    describe: 'provide a path to file'
+  })
+  .option('spec', {
+    alias: 's',
+    describe: 'program specifications'
+  })
+  .demandOption(['run', 'path'], 'Please provide both run and path arguments to work with this tool')
+  .help()
+  .argv
+```
+which will provide the following output:
+```bash
+Options:
+  --run, -r   run your program                [required]
+  --path, -p  provide a path to file          [required]
+  --spec, -s  program specifications
+  --help      Show help                        [boolean]
+
+  Missing required arguments: run, path
+  Please provide both run and path arguments to work with this tool
+```
+
+If a `boolean` value is given, it controls whether the option is demanded;
+this is useful when using `.options()` to specify command line parameters.
+
+```javascript
+// demand individual options within the option constructor
+require('yargs')
+  .options({
+    'run': {
+      alias: 'r',
+      describe: 'run your program',
+      demand: true
+    },
+    'path': {
+      alias: 'p',
+      describe: 'provide a path to file',
+      demand: true
+    },
+    'spec': {
+      alias: 's',
+      describe: 'program specifications'
+    }
+  })
+  .help()
+  .argv
+```
+which will provide the following output:
+```bash
+Options:
+  --run, -r   run your program                                       [required]
+  --path, -p  provide a path to file                                 [required]
+  --spec, -s  program specifications
+  --help      Show help                                               [boolean]
+
+Missing required arguments: run, path
+```
+
+<a name="demandCommand"></a>.demandCommand(min, [minMsg])
+------------------------------
+.demandCommand(min, [max], [minMsg], [maxMsg])
+------------------------------
+
+Demand in context of commands. You can demand a minimum and a maximum number a user can have within your program, as well as provide corresponding error messages if either of the demands is not met.
+```javascript
+require('yargs')
+  .command({
+    command: 'configure <key> [value]',
+    aliases: ['config', 'cfg'],
+    desc: 'Set a config variable',
+    builder: (yargs) => yargs.default('value', 'true'),
+    handler: (argv) => {
+      console.log(`setting ${argv.key} to ${argv.value}`)
+    }
+  })
+  // provide a minimum demand and a minimum demand message
+  .demandCommand(1, 'You need at least one command before moving on')
+  .help()
+  .argv
+```
+which will provide the following output:
+```bash
+Commands:
+  configure <key> [value]  Set a config variable         [aliases: config, cfg]
+
+Options:
+  --help  Show help                                                   [boolean]
+
+You need at least one command before moving on
+```
+
+_Note: in `minMsg` and `maxMsg`, every occurrence of `$0` will be replaced
+with the observed value, and every instance of `$1` will be replaced with the
+expected value._
+
+<a name="describe"></a>.describe(key, desc)
+--------------------
+
+Describe a `key` for the generated usage information.
+
+Optionally `.describe()` can take an object that maps keys to descriptions.
+
+.detectLocale(boolean)
+-----------
+
+Should yargs attempt to detect the os' locale? Defaults to `true`.
+
+.env([prefix])
+--------------
+
+Tell yargs to parse environment variables matching the given prefix and apply
+them to argv as though they were command line arguments.
+
+Use the "__" separator in the environment variable to indicate nested options.
+(e.g. prefix_nested__foo => nested.foo)
+
+If this method is called with no argument or with an empty string or with `true`,
+then all env vars will be applied to argv.
+
+Program arguments are defined in this order of precedence:
+
+1. Command line args
+2. Config file
+3. Env var
+4. Configured defaults
+
+```js
+var argv = require('yargs')
+  .env('MY_PROGRAM')
+  .option('f', {
+    alias: 'fruit-thing',
+    default: 'apple'
+  })
+  .argv
+console.log(argv)
+```
+
+```
+$ node fruity.js
+{ _: [],
+  f: 'apple',
+  'fruit-thing': 'apple',
+  fruitThing: 'apple',
+  '$0': 'fruity.js' }
+```
+
+```
+$ MY_PROGRAM_FRUIT_THING=banana node fruity.js
+{ _: [],
+  fruitThing: 'banana',
+  f: 'banana',
+  'fruit-thing': 'banana',
+  '$0': 'fruity.js' }
+```
+
+```
+$ MY_PROGRAM_FRUIT_THING=banana node fruity.js -f cat
+{ _: [],
+  f: 'cat',
+  'fruit-thing': 'cat',
+  fruitThing: 'cat',
+  '$0': 'fruity.js' }
+```
+
+Env var parsing is disabled by default, but you can also explicitly disable it
+by calling `.env(false)`, e.g. if you need to undo previous configuration.
+
+.epilog(str)
+------------
+.epilogue(str)
+--------------
+
+A message to print at the end of the usage instructions, e.g.
+
+```js
+var argv = require('yargs')
+  .epilogue('for more information, find our manual at http://example.com');
+```
+
+.example(cmd, desc)
+-------------------
+
+Give some example invocations of your program. Inside `cmd`, the string
+`$0` will get interpolated to the current script name or node command for the
+present script similar to how `$0` works in bash or perl.
+Examples will be printed out as part of the help message.
+
+<a name="exitprocess"></a>.exitProcess(enable)
+----------------------------------
+
+By default, yargs exits the process when the user passes a help flag, uses the
+`.version` functionality, or when validation fails. Calling
+`.exitProcess(false)` disables this behavior, enabling further actions after
+yargs have been validated.
+
+<a name="fail"></a>.fail(fn)
+---------
+
+Method to execute when a failure occurs, rather than printing the failure message.
+
+`fn` is called with the failure message that would have been printed, the
+`Error` instance originally thrown and yargs state when the failure
+occured.
+
+```js
+var argv = require('yargs')
+  .fail(function (msg, err, yargs) {
+    if (err) throw err // preserve stack
+    console.error('You broke it!')
+    console.error(msg)
+    console.error('You should be doing', yargs.help())
+    process.exit(1)
+  })
+  .argv
+```
+
+.getCompletion(args, done);
+---------------------------
+
+Allows to programmatically get completion choices for any line.
+
+`args`: An array of the words in the command line to complete.
+
+`done`: The callback to be called with the resulting completions.
+
+For example:
+
+```js
+require('yargs')
+  .option('foobar')
+  .option('foobaz')
+  .completion()
+  .getCompletion(['./test.js', '--foo'], function (completions) {
+    console.log(completions)
+  })
+```
+
+Outputs the same completion choices as `./test.js --foo`<kbd>TAB</kbd>: `--foobar` and `--foobaz`
+
+<a name="global"></a>.global(globals)
+------------
+
+Indicate that an option (or group of options) should not be reset when a command
+is executed, as an example:
+
+```js
+var argv = require('yargs')
+  .option('a', {
+    alias: 'all',
+    default: true
+  })
+  .option('n', {
+    alias: 'none',
+    default: true
+  })
+  .command('foo', 'foo command', function (yargs) {
+    return yargs.option('b', {
+      alias: 'bar'
+    })
+  })
+  .help('help')
+  .global('a')
+  .argv
+```
+
+If the `foo` command is executed the `all` option will remain, but the `none`
+option will have been eliminated.
+
+`help`, `version`, and `completion` options default to being global.
+
+<a name="group"></a>.group(key(s), groupName)
+--------------------
+
+Given a key, or an array of keys, places options under an alternative heading
+when displaying usage instructions, e.g.,
+
+```js
+var yargs = require('yargs')(['--help'])
+  .help()
+  .group('batman', 'Heroes:')
+  .describe('batman', "world's greatest detective")
+  .wrap(null)
+  .argv
+```
+***
+    Heroes:
+      --batman  world's greatest detective
+
+    Options:
+      --help  Show help  [boolean]
+
+<a name="help"></a>.help()
+-----------------------------------------
+.help([option | boolean])
+-----------------------------------------
+.help([option, [description | boolean]])
+-----------------------------------------
+.help([option, [description, [boolean]]])
+-----------------------------------------
+
+Add an option (e.g. `--help`) and implicit command that displays the usage
+string and exits the process.
+
+If present, the `description` parameter customizes the description of
+the help option in the usage string.
+
+If a boolean argument is provided, it will enable or disable the use of an
+implicit command. The implicit command is enabled by default, but it can be
+disabled by passing `false`.
+
+Note that any multi-char aliases (e.g. `help`) used for the help option will
+also be used for the implicit command. If there are no multi-char aliases (e.g.
+`h`), then all single-char aliases will be used for the command.
+
+If invoked without parameters, `.help()` will use `--help` as the option and
+`help` as the implicit command to trigger help output.
+
+Example:
+
+```js
+var yargs = require("yargs")(['--help'])
+  .usage("$0 -operand1 number -operand2 number -operation [add|subtract]")
+  .help()
+  .argv
+```
+
+Later on, `argv` can be retrieved with `yargs.argv`.
+
+.implies(x, y)
+--------------
+
+Given the key `x` is set, it is required that the key `y` is set.
+
+Optionally `.implies()` can accept an object specifying multiple implications.
+
+.locale()
+---------
+
+Return the locale that yargs is currently using.
+
+By default, yargs will auto-detect the operating system's locale so that
+yargs-generated help content will display in the user's language.
+
+To override this behavior with a static locale, pass the desired locale as a
+string to this method (see below).
+
+.locale(locale)
+---------------
+
+Override the auto-detected locale from the user's operating system with a static
+locale. Note that the OS locale can be modified by setting/exporting the `LC_ALL`
+environment variable.
+
+```js
+var argv = require('yargs')
+  .usage('./$0 - follow ye instructions true')
+  .option('option', {
+    alias: 'o',
+    describe: "'tis a mighty fine option",
+    demand: true
+  })
+  .command('run', "Arrr, ya best be knowin' what yer doin'")
+  .example('$0 run foo', "shiver me timbers, here's an example for ye")
+  .help('help')
+  .wrap(70)
+  .locale('pirate')
+  .argv
+```
+
+***
+
+```shell
+./test.js - follow ye instructions true
+
+Choose yer command:
+  run  Arrr, ya best be knowin' what yer doin'
+
+Options for me hearties!
+  --option, -o  'tis a mighty fine option               [requi-yar-ed]
+  --help        Parlay this here code of conduct             [boolean]
+
+Ex. marks the spot:
+  test.js run foo  shiver me timbers, here's an example for ye
+
+Ye be havin' to set the followin' argument land lubber: option
+```
+
+Locales currently supported:
+
+* **de:** German.
+* **en:** American English.
+* **es:** Spanish.
+* **fr:** French.
+* **hi:** Hindi.
+* **hu:** Hungarian.
+* **id:** Indonesian.
+* **it:** Italian.
+* **ja:** Japanese.
+* **ko:** Korean.
+* **nb:** Norwegian Bokmål.
+* **pirate:** American Pirate.
+* **pl:** Polish.
+* **pt:** Portuguese.
+* **pt_BR:** Brazilian Portuguese.
+* **ru:** Russian.
+* **th:** Thai.
+* **tr:** Turkish.
+* **zh_CN:** Chinese.
+
+To submit a new translation for yargs:
+
+1. use `./locales/en.json` as a starting point.
+2. submit a pull request with the new locale file.
+
+*The [Microsoft Terminology Search](http://www.microsoft.com/Language/en-US/Search.aspx) can be useful for finding the correct terminology in your locale.*
+
+<a name="nargs"></a>.nargs(key, count)
+-----------
+
+The number of arguments that should be consumed after a key. This can be a
+useful hint to prevent parsing ambiguity. For example:
+
+```js
+var argv = require('yargs')
+  .nargs('token', 1)
+  .parse(['--token', '-my-token']);
+```
+
+parses as:
+
+`{ _: [], token: '-my-token', '$0': 'node test' }`
+
+Optionally `.nargs()` can take an object of `key`/`narg` pairs.
+
+<a name="normalize"></a>.normalize(key)
+---------------
+
+The key provided represents a path and should have `path.normalize()` applied.
+
+<a name="number"></a>.number(key)
+------------
+
+Tell the parser to always interpret `key` as a number.
+
+If `key` is an array, all elements will be parsed as numbers.
+
+If the option is given on the command line without a value, `argv` will be
+populated with `undefined`.
+
+If the value given on the command line cannot be parsed as a number, `argv` will
+be populated with `NaN`.
+
+Note that decimals, hexadecimals, and scientific notation are all accepted.
+
+```js
+var argv = require('yargs')
+  .number('n')
+  .number(['width', 'height'])
+  .argv
+```
+
+.option(key, [opt])
+-----------------
+.options(key, [opt])
+------------------
+
+This method can be used to make yargs aware of options that _could_
+exist. You can also pass an `opt` object which can hold further
+customization, like `.alias()`, `.demandOption()` etc. for that option.
+
+For example:
+
+````javascript
+var argv = require('yargs')
+    .option('f', {
+        alias: 'file',
+        demand: true,
+        default: '/etc/passwd',
+        describe: 'x marks the spot',
+        type: 'string'
+    })
+    .argv
+;
+````
+
+is the same as
+
+````javascript
+var argv = require('yargs')
+    .alias('f', 'file')
+    .demandOption('f')
+    .default('f', '/etc/passwd')
+    .describe('f', 'x marks the spot')
+    .string('f')
+    .argv
+;
+````
+
+Optionally `.options()` can take an object that maps keys to `opt` parameters.
+
+````javascript
+var argv = require('yargs')
+    .options({
+      'f': {
+        alias: 'file',
+        demand: true,
+        default: '/etc/passwd',
+        describe: 'x marks the spot',
+        type: 'string'
+      }
+    })
+    .argv
+;
+````
+
+Valid `opt` keys include:
+
+- `alias`: string or array of strings, alias(es) for the canonical option key, see [`alias()`](#alias)
+- `array`: boolean, interpret option as an array, see [`array()`](#array)
+- `boolean`: boolean, interpret option as a boolean flag, see [`boolean()`](#boolean)
+- `choices`: value or array of values, limit valid option arguments to a predefined set, see [`choices()`](#choices)
+- `coerce`: function, coerce or transform parsed command line values into another value, see [`coerce()`](#coerce)
+- `config`: boolean, interpret option as a path to a JSON config file, see [`config()`](#config)
+- `configParser`: function, provide a custom config parsing function, see [`config()`](#config)
+- `count`: boolean, interpret option as a count of boolean flags, see [`count()`](#count)
+- `default`: value, set a default value for the option, see [`default()`](#default)
+- `defaultDescription`: string, use this description for the default value in help content, see [`default()`](#default)
+- `demandOption`: boolean or string, demand the option be given, with optional error message, see [`demandOption()`](#demandOption)
+- `desc`/`describe`/`description`: string, the option description for help content, see [`describe()`](#describe)
+- `global`: boolean, indicate that this key should not be [reset](#reset) when a command is invoked, see [`global()`](#global)
+- `group`: string, when displaying usage instructions place the option under an alternative group heading, see [`group()`](#group)
+- `nargs`: number, specify how many arguments should be consumed for the option, see [`nargs()`](#nargs)
+- `normalize`: boolean, apply `path.normalize()` to the option, see [`normalize()`](#normalize)
+- `number`: boolean, interpret option as a number, [`number()`](#number)
+- `requiresArg`: boolean, require the option be specified with a value, see [`requiresArg()`](#requiresArg)
+- `skipValidation`: boolean, skips validation if the option is present, see [`skipValidation()`](#skipValidation)
+- `string`: boolean, interpret option as a string, see [`string()`](#string)
+- `type`: one of the following strings
+    - `'array'`: synonymous for `array: true`, see [`array()`](#array)
+    - `'boolean'`: synonymous for `boolean: true`, see [`boolean()`](#boolean)
+    - `'count'`: synonymous for `count: true`, see [`count()`](#count)
+    - `'number'`: synonymous for `number: true`, see [`number()`](#number)
+    - `'string'`: synonymous for `string: true`, see [`string()`](#string)
+
+.parse(args, [context], [parseCallback])
+------------
+
+Parse `args` instead of `process.argv`. Returns the `argv` object.
+`args` may either be a pre-processed argv array, or a raw argument string.
+
+A `context` object can optionally be given as the second argument to `parse()`, providing a
+useful mechanism for passing state information to commands:
+
+```js
+const parser = yargs
+  .command('lunch-train <restaurant>', 'start lunch train', function () {}, function (argv) {
+    console.log(argv.restaurant, argv.time)
+  })
+  .parse("lunch-train rudy's", {time: '12:15'})
+```
+
+A `parseCallback` can also be provided to `.parse()`. If a callback is given, it will be invoked with three arguments:
+
+1. `err`: populated if any validation errors raised while parsing.
+2. `argv`: the parsed argv object.
+3. `output`: any text that would have been output to the terminal, had a
+  callback not been provided.
+
+```js
+// providing the `fn` argument to `parse()` runs yargs in headless mode, this
+// makes it easy to use yargs in contexts other than the CLI, e.g., writing
+// a chat-bot.
+const parser = yargs
+  .command('lunch-train <restaurant> <time>', 'start lunch train', function () {}, function (argv) {
+    api.scheduleLunch(argv.restaurant, moment(argv.time))
+  })
+  .help()
+
+parser.parse(bot.userText, function (err, argv, output) {
+  if (output) bot.respond(output)
+})
+```
+
+***Note:*** Providing a callback to `parse()` disables the [`exitProcess` setting](#exitprocess) until after the callback is invoked.
+
+.pkgConf(key, [cwd])
+------------
+
+Similar to [`config()`](#config), indicates that yargs should interpret the object from the specified key in package.json
+as a configuration object.
+
+`cwd` can optionally be provided, the package.json will be read
+from this location.
+
+.recommendCommands()
+---------------------------
+
+Should yargs provide suggestions regarding similar commands if no matching
+command is found?
+
+.require(key, [msg | boolean])
+------------------------------
+.required(key, [msg | boolean])
+------------------------------
+
+An alias for [`demand()`](#demand). See docs there.
+
+<a name="requiresArg"></a>.requiresArg(key)
+-----------------
+
+Specifies either a single option key (string), or an array of options that
+must be followed by option values. If any option value is missing, show the
+usage information and exit.
+
+The default behavior is to set the value of any key not followed by an
+option value to `true`.
+
+<a name="reset"></a>.reset()
+--------
+
+Reset the argument object built up so far. This is useful for
+creating nested command line interfaces. Use [global](#global)
+to specify keys that should not be reset.
+
+```js
+var yargs = require('yargs')
+  .usage('$0 command')
+  .command('hello', 'hello command')
+  .command('world', 'world command')
+  .demandCommand(1, 'must provide a valid command'),
+  argv = yargs.argv,
+  command = argv._[0];
+
+if (command === 'hello') {
+  yargs.reset()
+    .usage('$0 hello')
+    .help('h')
+    .example('$0 hello', 'print the hello message!')
+    .argv
+
+  console.log('hello!');
+} else if (command === 'world'){
+  yargs.reset()
+    .usage('$0 world')
+    .help('h')
+    .example('$0 world', 'print the world message!')
+    .argv
+
+  console.log('world!');
+} else {
+  yargs.showHelp();
+}
+```
+
+.showCompletionScript()
+----------------------
+
+Generate a bash completion script. Users of your application can install this
+script in their `.bashrc`, and yargs will provide completion shortcuts for
+commands and options.
+
+.showHelp(consoleLevel='error')
+---------------------------
+
+Print the usage data using the [`console`](https://nodejs.org/api/console.html) function `consoleLevel` for printing.
+
+Example:
+
+```js
+var yargs = require("yargs")
+  .usage("$0 -operand1 number -operand2 number -operation [add|subtract]");
+yargs.showHelp(); //prints to stderr using console.error()
+```
+
+Or, to print the usage data to `stdout` instead, you can specify the use of `console.log`:
+
+```js
+yargs.showHelp("log"); //prints to stdout using console.log()
+```
+
+Later on, `argv` can be retrieved with `yargs.argv`.
+
+.showHelpOnFail(enable, [message])
+----------------------------------
+
+By default, yargs outputs a usage string if any error is detected. Use the
+`.showHelpOnFail()` method to customize this behavior. If `enable` is `false`,
+the usage string is not output. If the `message` parameter is present, this
+message is output after the error message.
+
+line_count.js:
+
+````javascript
+#!/usr/bin/env node
+var argv = require('yargs')
+    .usage('Count the lines in a file.\nUsage: $0 -f <file>')
+    .demandOption('f')
+    .alias('f', 'file')
+    .describe('f', 'Load a file')
+    .string('f')
+    .showHelpOnFail(false, 'Specify --help for available options')
+    .help('help')
+    .argv;
+
+// etc.
+````
+
+***
+
+```
+$ node line_count.js
+Missing argument value: f
+
+Specify --help for available options
+```
+
+<a name="skipValidation"></a>.skipValidation(key)
+-----------------
+
+Specifies either a single option key (string), or an array of options.
+If any of the options is present, yargs validation is skipped.
+
+.strict()
+---------
+
+Any command-line argument given that is not demanded, or does not have a
+corresponding description, will be reported as an error.
+
+<a name="string"></a>.string(key)
+------------
+
+Tell the parser logic not to interpret `key` as a number or boolean.
+This can be useful if you need to preserve leading zeros in an input.
+
+If `key` is an array, interpret all the elements as strings.
+
+`.string('_')` will result in non-hyphenated arguments being interpreted as strings,
+regardless of whether they resemble numbers.
+
+.updateLocale(obj)
+------------------
+.updateStrings(obj)
+------------------
+
+Override the default strings used by yargs with the key/value
+pairs provided in `obj`:
+
+```js
+var argv = require('yargs')
+  .command('run', 'the run command')
+  .help('help')
+  .updateStrings({
+    'Commands:': 'My Commands -->\n'
+  })
+  .wrap(null)
+  .argv
+```
+
+***
+
+```shell
+My Commands -->
+
+  run  the run command
+
+Options:
+  --help  Show help  [boolean]
+```
+
+If you explicitly specify a `locale()`, you should do so *before* calling
+`updateStrings()`.
+
+.usage(message, [opts])
+---------------------
+
+Set a usage message to show which commands to use. Inside `message`, the string
+`$0` will get interpolated to the current script name or node command for the
+present script similar to how `$0` works in bash or perl.
+
+`opts` is optional and acts like calling `.options(opts)`.
+
+<a name="version"></a>.version([option], [description], [version])
+----------------------------------------
+
+Add an option (e.g. `--version`) that displays the version number (given by the
+`version` parameter) and exits the process.
+
+If no arguments are passed to `version` (`.version()`), yargs will parse the `package.json`
+of your module and use its `version` value. The default value of `option` is `--version`.
+
+You can provide a `function` for version, rather than a string.
+This is useful if you want to use a version stored in a location other than package.json:
+
+```js
+var argv = require('yargs')
+  .version(function() {
+    return require('../lib/version').version;
+  })
+  .argv;
+```
+
+<a name="wrap"></a>.wrap(columns)
+--------------
+
+Format usage output to wrap at `columns` many columns.
+
+By default wrap will be set to `Math.min(80, windowWidth)`. Use `.wrap(null)` to
+specify no column limit (no right-align). Use `.wrap(yargs.terminalWidth())` to
+maximize the width of yargs' usage instructions.
+
+parsing tricks
+==============
+
+stop parsing
+------------
+
+Use `--` to stop parsing flags and stuff the remainder into `argv._`.
+
+    $ node examples/reflect.js -a 1 -b 2 -- -c 3 -d 4
+    { _: [ '-c', '3', '-d', '4' ],
+      a: 1,
+      b: 2,
+      '$0': 'examples/reflect.js' }
+
+negate fields
+-------------
+
+If you want to explicitly set a field to false instead of just leaving it
+undefined or to override a default you can do `--no-key`.
+
+    $ node examples/reflect.js -a --no-b
+    { _: [], a: true, b: false, '$0': 'examples/reflect.js' }
+
+numbers
+-------
+
+Every argument that looks like a number (`!isNaN(Number(arg))`) is converted to
+one. This way you can just `net.createConnection(argv.port)` and you can add
+numbers out of `argv` with `+` without having that mean concatenation,
+which is super frustrating.
+
+duplicates
+----------
+
+If you specify a flag multiple times it will get turned into an array containing
+all the values in order.
+
+    $ node examples/reflect.js -x 5 -x 8 -x 0
+    { _: [], x: [ 5, 8, 0 ], '$0': 'examples/reflect.js' }
+
+dot notation
+------------
+
+When you use dots (`.`s) in argument names, an implicit object path is assumed.
+This lets you organize arguments into nested objects.
+
+    $ node examples/reflect.js --foo.bar.baz=33 --foo.quux=5
+    { _: [],
+      foo: { bar: { baz: 33 }, quux: 5 },
+      '$0': 'examples/reflect.js' }
+
+short numbers
+-------------
+
+Short numeric `-n5` style arguments work too:
+
+    $ node examples/reflect.js -n123 -m456
+    { _: [], n: 123, m: 456, '$0': 'examples/reflect.js' }
+
+installation
+============
+
+With [npm](https://github.com/npm/npm), just do:
+
+    npm install yargs
+
+or clone this project on github:
+
+    git clone http://github.com/yargs/yargs.git
+
+To run the tests with npm, just do:
+
+    npm test
+
+configuration
+=============
+
+Using the `yargs` stanza in your `package.json` you can turn on and off
+some of yargs' parsing features:
+
+```json
+{
+  "yargs": {
+    "short-option-groups": true,
+    "camel-case-expansion": true,
+    "dot-notation": true,
+    "parse-numbers": true,
+    "boolean-negation": true
+  }
+}
+```
+
+See the [yargs-parser](https://github.com/yargs/yargs-parser#configuration) module
+for detailed documentation of this feature.
+
+inspired by
+===========
+
+This module is loosely inspired by Perl's
+[Getopt::Casual](http://search.cpan.org/~photo/Getopt-Casual-0.13.1/Casual.pm).
+
+[travis-url]: https://travis-ci.org/yargs/yargs
+[travis-image]: https://img.shields.io/travis/yargs/yargs/master.svg
+[coveralls-url]: https://coveralls.io/github/yargs/yargs
+[coveralls-image]: https://img.shields.io/coveralls/yargs/yargs.svg
+[npm-url]: https://www.npmjs.com/package/yargs
+[npm-image]: https://img.shields.io/npm/v/yargs.svg
+[windows-url]: https://ci.appveyor.com/project/bcoe/yargs-ljwvf
+[windows-image]: https://img.shields.io/appveyor/ci/bcoe/yargs-ljwvf/master.svg?label=Windows%20Tests
+[standard-image]: https://img.shields.io/badge/code%20style-standard-brightgreen.svg
+[standard-url]: http://standardjs.com/
+[standard-version-image]: https://img.shields.io/badge/release-standard%20version-brightgreen.svg
+[standard-version-url]: https://github.com/conventional-changelog/standard-version
+[gitter-image]: https://img.shields.io/gitter/room/nwjs/nw.js.svg?maxAge=2592000
+[gitter-url]: https://gitter.im/yargs/Lobby?utm_source=share-link&utm_medium=link&utm_campaign=share-link
diff --git a/helloworld/node_modules/yargs/completion.sh.hbs b/helloworld/node_modules/yargs/completion.sh.hbs
new file mode 100755
index 0000000..14445b8
--- /dev/null
+++ b/helloworld/node_modules/yargs/completion.sh.hbs
@@ -0,0 +1,28 @@
+###-begin-{{app_name}}-completions-###
+#
+# yargs command completion script
+#
+# Installation: {{app_path}} completion >> ~/.bashrc
+#    or {{app_path}} completion >> ~/.bash_profile on OSX.
+#
+_yargs_completions()
+{
+    local cur_word args type_list
+
+    cur_word="${COMP_WORDS[COMP_CWORD]}"
+    args=("${COMP_WORDS[@]}")
+
+    # ask yargs to generate completions.
+    type_list=$({{app_path}} --get-yargs-completions "${args[@]}")
+
+    COMPREPLY=( $(compgen -W "${type_list}" -- ${cur_word}) )
+
+    # if no match was found, fall back to filename completion
+    if [ ${#COMPREPLY[@]} -eq 0 ]; then
+      COMPREPLY=( $(compgen -f -- "${cur_word}" ) )
+    fi
+
+    return 0
+}
+complete -F _yargs_completions {{app_name}}
+###-end-{{app_name}}-completions-###
diff --git a/helloworld/node_modules/yargs/index.js b/helloworld/node_modules/yargs/index.js
new file mode 100755
index 0000000..37450cf
--- /dev/null
+++ b/helloworld/node_modules/yargs/index.js
@@ -0,0 +1,31 @@
+// classic singleton yargs API, to use yargs
+// without running as a singleton do:
+// require('yargs/yargs')(process.argv.slice(2))
+const yargs = require('./yargs')
+
+Argv(process.argv.slice(2))
+
+module.exports = Argv
+
+function Argv (processArgs, cwd) {
+  const argv = yargs(processArgs, cwd, require)
+  singletonify(argv)
+  return argv
+}
+
+/*  Hack an instance of Argv with process.argv into Argv
+    so people can do
+    require('yargs')(['--beeble=1','-z','zizzle']).argv
+    to parse a list of args and
+    require('yargs').argv
+    to get a parsed version of process.argv.
+*/
+function singletonify (inst) {
+  Object.keys(inst).forEach(function (key) {
+    if (key === 'argv') {
+      Argv.__defineGetter__(key, inst.__lookupGetter__(key))
+    } else {
+      Argv[key] = typeof inst[key] === 'function' ? inst[key].bind(inst) : inst[key]
+    }
+  })
+}
diff --git a/helloworld/node_modules/yargs/lib/assign.js b/helloworld/node_modules/yargs/lib/assign.js
new file mode 100755
index 0000000..7d5a3ce
--- /dev/null
+++ b/helloworld/node_modules/yargs/lib/assign.js
@@ -0,0 +1,15 @@
+// lazy Object.assign logic that only works for merging
+// two objects; eventually we should replace this with Object.assign.
+module.exports = function assign (defaults, configuration) {
+  var o = {}
+  configuration = configuration || {}
+
+  Object.keys(defaults).forEach(function (k) {
+    o[k] = defaults[k]
+  })
+  Object.keys(configuration).forEach(function (k) {
+    o[k] = configuration[k]
+  })
+
+  return o
+}
diff --git a/helloworld/node_modules/yargs/lib/command.js b/helloworld/node_modules/yargs/lib/command.js
new file mode 100755
index 0000000..c1afc1c
--- /dev/null
+++ b/helloworld/node_modules/yargs/lib/command.js
@@ -0,0 +1,265 @@
+const path = require('path')
+const inspect = require('util').inspect
+const camelCase = require('camelcase')
+
+// handles parsing positional arguments,
+// and populating argv with said positional
+// arguments.
+module.exports = function (yargs, usage, validation) {
+  const self = {}
+
+  var handlers = {}
+  var aliasMap = {}
+  self.addHandler = function (cmd, description, builder, handler) {
+    var aliases = []
+    if (Array.isArray(cmd)) {
+      aliases = cmd.slice(1)
+      cmd = cmd[0]
+    } else if (typeof cmd === 'object') {
+      var command = (Array.isArray(cmd.command) || typeof cmd.command === 'string') ? cmd.command : moduleName(cmd)
+      if (cmd.aliases) command = [].concat(command).concat(cmd.aliases)
+      self.addHandler(command, extractDesc(cmd), cmd.builder, cmd.handler)
+      return
+    }
+
+    // allow a module to be provided instead of separate builder and handler
+    if (typeof builder === 'object' && builder.builder && typeof builder.handler === 'function') {
+      self.addHandler([cmd].concat(aliases), description, builder.builder, builder.handler)
+      return
+    }
+
+    var parsedCommand = parseCommand(cmd)
+    aliases = aliases.map(function (alias) {
+      alias = parseCommand(alias).cmd // remove positional args
+      aliasMap[alias] = parsedCommand.cmd
+      return alias
+    })
+
+    if (description !== false) {
+      usage.command(cmd, description, aliases)
+    }
+
+    handlers[parsedCommand.cmd] = {
+      original: cmd,
+      handler: handler,
+      builder: builder || {},
+      demanded: parsedCommand.demanded,
+      optional: parsedCommand.optional
+    }
+  }
+
+  self.addDirectory = function (dir, context, req, callerFile, opts) {
+    opts = opts || {}
+    // disable recursion to support nested directories of subcommands
+    if (typeof opts.recurse !== 'boolean') opts.recurse = false
+    // exclude 'json', 'coffee' from require-directory defaults
+    if (!Array.isArray(opts.extensions)) opts.extensions = ['js']
+    // allow consumer to define their own visitor function
+    const parentVisit = typeof opts.visit === 'function' ? opts.visit : function (o) { return o }
+    // call addHandler via visitor function
+    opts.visit = function (obj, joined, filename) {
+      const visited = parentVisit(obj, joined, filename)
+      // allow consumer to skip modules with their own visitor
+      if (visited) {
+        // check for cyclic reference
+        // each command file path should only be seen once per execution
+        if (~context.files.indexOf(joined)) return visited
+        // keep track of visited files in context.files
+        context.files.push(joined)
+        self.addHandler(visited)
+      }
+      return visited
+    }
+    require('require-directory')({ require: req, filename: callerFile }, dir, opts)
+  }
+
+  // lookup module object from require()d command and derive name
+  // if module was not require()d and no name given, throw error
+  function moduleName (obj) {
+    const mod = require('which-module')(obj)
+    if (!mod) throw new Error('No command name given for module: ' + inspect(obj))
+    return commandFromFilename(mod.filename)
+  }
+
+  // derive command name from filename
+  function commandFromFilename (filename) {
+    return path.basename(filename, path.extname(filename))
+  }
+
+  function extractDesc (obj) {
+    for (var keys = ['describe', 'description', 'desc'], i = 0, l = keys.length, test; i < l; i++) {
+      test = obj[keys[i]]
+      if (typeof test === 'string' || typeof test === 'boolean') return test
+    }
+    return false
+  }
+
+  function parseCommand (cmd) {
+    var extraSpacesStrippedCommand = cmd.replace(/\s{2,}/g, ' ')
+    var splitCommand = extraSpacesStrippedCommand.split(/\s+(?![^[]*]|[^<]*>)/)
+    var bregex = /\.*[\][<>]/g
+    var parsedCommand = {
+      cmd: (splitCommand.shift()).replace(bregex, ''),
+      demanded: [],
+      optional: []
+    }
+    splitCommand.forEach(function (cmd, i) {
+      var variadic = false
+      cmd = cmd.replace(/\s/g, '')
+      if (/\.+[\]>]/.test(cmd) && i === splitCommand.length - 1) variadic = true
+      if (/^\[/.test(cmd)) {
+        parsedCommand.optional.push({
+          cmd: cmd.replace(bregex, '').split('|'),
+          variadic: variadic
+        })
+      } else {
+        parsedCommand.demanded.push({
+          cmd: cmd.replace(bregex, '').split('|'),
+          variadic: variadic
+        })
+      }
+    })
+    return parsedCommand
+  }
+
+  self.getCommands = function () {
+    return Object.keys(handlers).concat(Object.keys(aliasMap))
+  }
+
+  self.getCommandHandlers = function () {
+    return handlers
+  }
+
+  self.runCommand = function (command, yargs, parsed) {
+    var argv = parsed.argv
+    var commandHandler = handlers[command] || handlers[aliasMap[command]]
+    var innerArgv = argv
+    var currentContext = yargs.getContext()
+    var numFiles = currentContext.files.length
+    var parentCommands = currentContext.commands.slice()
+    currentContext.commands.push(command)
+    if (typeof commandHandler.builder === 'function') {
+      // a function can be provided, which builds
+      // up a yargs chain and possibly returns it.
+      innerArgv = commandHandler.builder(yargs.reset(parsed.aliases))
+      // if the builder function did not yet parse argv with reset yargs
+      // and did not explicitly set a usage() string, then apply the
+      // original command string as usage() for consistent behavior with
+      // options object below
+      if (yargs.parsed === false) {
+        if (typeof yargs.getUsageInstance().getUsage() === 'undefined') {
+          yargs.usage('$0 ' + (parentCommands.length ? parentCommands.join(' ') + ' ' : '') + commandHandler.original)
+        }
+        innerArgv = innerArgv ? innerArgv.argv : yargs.argv
+      } else {
+        innerArgv = yargs.parsed.argv
+      }
+    } else if (typeof commandHandler.builder === 'object') {
+      // as a short hand, an object can instead be provided, specifying
+      // the options that a command takes.
+      innerArgv = yargs.reset(parsed.aliases)
+      innerArgv.usage('$0 ' + (parentCommands.length ? parentCommands.join(' ') + ' ' : '') + commandHandler.original)
+      Object.keys(commandHandler.builder).forEach(function (key) {
+        innerArgv.option(key, commandHandler.builder[key])
+      })
+      innerArgv = innerArgv.argv
+    }
+    if (!yargs._hasOutput()) populatePositionals(commandHandler, innerArgv, currentContext, yargs)
+
+    if (commandHandler.handler && !yargs._hasOutput()) {
+      commandHandler.handler(innerArgv)
+    }
+    currentContext.commands.pop()
+    numFiles = currentContext.files.length - numFiles
+    if (numFiles > 0) currentContext.files.splice(numFiles * -1, numFiles)
+    return innerArgv
+  }
+
+  // transcribe all positional arguments "command <foo> <bar> [apple]"
+  // onto argv.
+  function populatePositionals (commandHandler, argv, context, yargs) {
+    argv._ = argv._.slice(context.commands.length) // nuke the current commands
+    var demanded = commandHandler.demanded.slice(0)
+    var optional = commandHandler.optional.slice(0)
+
+    validation.positionalCount(demanded.length, argv._.length)
+
+    while (demanded.length) {
+      var demand = demanded.shift()
+      populatePositional(demand, argv, yargs)
+    }
+
+    while (optional.length) {
+      var maybe = optional.shift()
+      populatePositional(maybe, argv, yargs)
+    }
+
+    argv._ = context.commands.concat(argv._)
+  }
+
+  // populate a single positional argument and its
+  // aliases onto argv.
+  function populatePositional (positional, argv, yargs) {
+    // "positional" consists of the positional.cmd, an array representing
+    // the positional's name and aliases, and positional.variadic
+    // indicating whether or not it is a variadic array.
+    var variadics = null
+    var value = null
+    for (var i = 0, cmd; (cmd = positional.cmd[i]) !== undefined; i++) {
+      if (positional.variadic) {
+        if (variadics) argv[cmd] = variadics.slice(0)
+        else argv[cmd] = variadics = argv._.splice(0)
+      } else {
+        if (!value && !argv._.length) continue
+        if (value) argv[cmd] = value
+        else argv[cmd] = value = argv._.shift()
+      }
+      postProcessPositional(yargs, argv, cmd)
+      addCamelCaseExpansions(argv, cmd)
+    }
+  }
+
+  // TODO move positional arg logic to yargs-parser and remove this duplication
+  function postProcessPositional (yargs, argv, key) {
+    var coerce = yargs.getOptions().coerce[key]
+    if (typeof coerce === 'function') {
+      try {
+        argv[key] = coerce(argv[key])
+      } catch (err) {
+        yargs.getUsageInstance().fail(err.message, err)
+      }
+    }
+  }
+
+  function addCamelCaseExpansions (argv, option) {
+    if (/-/.test(option)) {
+      const cc = camelCase(option)
+      if (typeof argv[option] === 'object') argv[cc] = argv[option].slice(0)
+      else argv[cc] = argv[option]
+    }
+  }
+
+  self.reset = function () {
+    handlers = {}
+    aliasMap = {}
+    return self
+  }
+
+  // used by yargs.parse() to freeze
+  // the state of commands such that
+  // we can apply .parse() multiple times
+  // with the same yargs instance.
+  var frozen
+  self.freeze = function () {
+    frozen = {}
+    frozen.handlers = handlers
+    frozen.aliasMap = aliasMap
+  }
+  self.unfreeze = function () {
+    handlers = frozen.handlers
+    aliasMap = frozen.aliasMap
+    frozen = undefined
+  }
+
+  return self
+}
diff --git a/helloworld/node_modules/yargs/lib/completion.js b/helloworld/node_modules/yargs/lib/completion.js
new file mode 100755
index 0000000..93a936c
--- /dev/null
+++ b/helloworld/node_modules/yargs/lib/completion.js
@@ -0,0 +1,99 @@
+const fs = require('fs')
+const path = require('path')
+
+// add bash completions to your
+//  yargs-powered applications.
+module.exports = function (yargs, usage, command) {
+  const self = {
+    completionKey: 'get-yargs-completions'
+  }
+
+  // get a list of completion commands.
+  // 'args' is the array of strings from the line to be completed
+  self.getCompletion = function (args, done) {
+    const completions = []
+    const current = args.length ? args[args.length - 1] : ''
+    const argv = yargs.parse(args, true)
+    const aliases = yargs.parsed.aliases
+
+    // a custom completion function can be provided
+    // to completion().
+    if (completionFunction) {
+      if (completionFunction.length < 3) {
+        var result = completionFunction(current, argv)
+
+        // promise based completion function.
+        if (typeof result.then === 'function') {
+          return result.then(function (list) {
+            process.nextTick(function () { done(list) })
+          }).catch(function (err) {
+            process.nextTick(function () { throw err })
+          })
+        }
+
+        // synchronous completion function.
+        return done(result)
+      } else {
+        // asynchronous completion function
+        return completionFunction(current, argv, function (completions) {
+          done(completions)
+        })
+      }
+    }
+
+    var handlers = command.getCommandHandlers()
+    for (var i = 0, ii = args.length; i < ii; ++i) {
+      if (handlers[args[i]] && handlers[args[i]].builder) {
+        return handlers[args[i]].builder(yargs.reset()).argv
+      }
+    }
+
+    if (!current.match(/^-/)) {
+      usage.getCommands().forEach(function (command) {
+        if (args.indexOf(command[0]) === -1) {
+          completions.push(command[0])
+        }
+      })
+    }
+
+    if (current.match(/^-/)) {
+      Object.keys(yargs.getOptions().key).forEach(function (key) {
+        // If the key and its aliases aren't in 'args', add the key to 'completions'
+        var keyAndAliases = [key].concat(aliases[key] || [])
+        var notInArgs = keyAndAliases.every(function (val) {
+          return args.indexOf('--' + val) === -1
+        })
+        if (notInArgs) {
+          completions.push('--' + key)
+        }
+      })
+    }
+
+    done(completions)
+  }
+
+  // generate the completion script to add to your .bashrc.
+  self.generateCompletionScript = function ($0) {
+    var script = fs.readFileSync(
+      path.resolve(__dirname, '../completion.sh.hbs'),
+      'utf-8'
+    )
+    var name = path.basename($0)
+
+    // add ./to applications not yet installed as bin.
+    if ($0.match(/\.js$/)) $0 = './' + $0
+
+    script = script.replace(/{{app_name}}/g, name)
+    return script.replace(/{{app_path}}/g, $0)
+  }
+
+  // register a function to perform your own custom
+  // completions., this function can be either
+  // synchrnous or asynchronous.
+  var completionFunction = null
+  self.registerFunction = function (fn) {
+    completionFunction = fn
+  }
+
+  return self
+}
diff --git a/helloworld/node_modules/yargs/lib/levenshtein.js b/helloworld/node_modules/yargs/lib/levenshtein.js
new file mode 100755
index 0000000..6ec216f
--- /dev/null
+++ b/helloworld/node_modules/yargs/lib/levenshtein.js
@@ -0,0 +1,47 @@
+/*
+Copyright (c) 2011 Andrei Mackenzie
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+// levenshtein distance algorithm, pulled from Andrei Mackenzie's MIT licensed.
+// gist, which can be found here: https://gist.github.com/andrei-m/982927
+
+// Compute the edit distance between the two given strings
+module.exports = function (a, b) {
+  if (a.length === 0) return b.length
+  if (b.length === 0) return a.length
+
+  var matrix = []
+
+  // increment along the first column of each row
+  var i
+  for (i = 0; i <= b.length; i++) {
+    matrix[i] = [i]
+  }
+
+  // increment each column in the first row
+  var j
+  for (j = 0; j <= a.length; j++) {
+    matrix[0][j] = j
+  }
+
+  // Fill in the rest of the matrix
+  for (i = 1; i <= b.length; i++) {
+    for (j = 1; j <= a.length; j++) {
+      if (b.charAt(i - 1) === a.charAt(j - 1)) {
+        matrix[i][j] = matrix[i - 1][j - 1]
+      } else {
+        matrix[i][j] = Math.min(matrix[i - 1][j - 1] + 1, // substitution
+                                Math.min(matrix[i][j - 1] + 1, // insertion
+                                         matrix[i - 1][j] + 1)) // deletion
+      }
+    }
+  }
+
+  return matrix[b.length][a.length]
+}
diff --git a/helloworld/node_modules/yargs/lib/obj-filter.js b/helloworld/node_modules/yargs/lib/obj-filter.js
new file mode 100755
index 0000000..42cb996
--- /dev/null
+++ b/helloworld/node_modules/yargs/lib/obj-filter.js
@@ -0,0 +1,10 @@
+module.exports = function (original, filter) {
+  const obj = {}
+  filter = filter || function (k, v) { return true }
+  Object.keys(original || {}).forEach(function (key) {
+    if (filter(key, original[key])) {
+      obj[key] = original[key]
+    }
+  })
+  return obj
+}
diff --git a/helloworld/node_modules/yargs/lib/usage.js b/helloworld/node_modules/yargs/lib/usage.js
new file mode 100755
index 0000000..555ffb5
--- /dev/null
+++ b/helloworld/node_modules/yargs/lib/usage.js
@@ -0,0 +1,462 @@
+// this file handles outputting usage instructions,
+// failures, etc. keeps logging in one place.
+const stringWidth = require('string-width')
+const objFilter = require('./obj-filter')
+const setBlocking = require('set-blocking')
+
+module.exports = function (yargs, y18n) {
+  const __ = y18n.__
+  const self = {}
+
+  // methods for ouputting/building failure message.
+  var fails = []
+  self.failFn = function (f) {
+    fails.push(f)
+  }
+
+  var failMessage = null
+  var showHelpOnFail = true
+  self.showHelpOnFail = function (enabled, message) {
+    if (typeof enabled === 'string') {
+      message = enabled
+      enabled = true
+    } else if (typeof enabled === 'undefined') {
+      enabled = true
+    }
+    failMessage = message
+    showHelpOnFail = enabled
+    return self
+  }
+
+  var failureOutput = false
+  self.fail = function (msg, err) {
+    const logger = yargs._getLoggerInstance()
+
+    if (fails.length) {
+      for (var i = fails.length - 1; i >= 0; --i) {
+        fails[i](msg, err, self)
+      }
+    } else {
+      if (yargs.getExitProcess()) setBlocking(true)
+
+      // don't output failure message more than once
+      if (!failureOutput) {
+        failureOutput = true
+        if (showHelpOnFail) yargs.showHelp('error')
+        if (msg) logger.error(msg)
+        if (failMessage) {
+          if (msg) logger.error('')
+          logger.error(failMessage)
+        }
+      }
+
+      err = err || new Error(msg)
+      if (yargs.getExitProcess()) {
+        return yargs.exit(1)
+      } else if (yargs._hasParseCallback()) {
+        return yargs.exit(1, err)
+      } else {
+        throw err
+      }
+    }
+  }
+
+  // methods for ouputting/building help (usage) message.
+  var usage
+  self.usage = function (msg) {
+    usage = msg
+  }
+  self.getUsage = function () {
+    return usage
+  }
+
+  var examples = []
+  self.example = function (cmd, description) {
+    examples.push([cmd, description || ''])
+  }
+
+  var commands = []
+  self.command = function (cmd, description, aliases) {
+    commands.push([cmd, description || '', aliases])
+  }
+  self.getCommands = function () {
+    return commands
+  }
+
+  var descriptions = {}
+  self.describe = function (key, desc) {
+    if (typeof key === 'object') {
+      Object.keys(key).forEach(function (k) {
+        self.describe(k, key[k])
+      })
+    } else {
+      descriptions[key] = desc
+    }
+  }
+  self.getDescriptions = function () {
+    return descriptions
+  }
+
+  var epilog
+  self.epilog = function (msg) {
+    epilog = msg
+  }
+
+  var wrapSet = false
+  var wrap
+  self.wrap = function (cols) {
+    wrapSet = true
+    wrap = cols
+  }
+
+  function getWrap () {
+    if (!wrapSet) {
+      wrap = windowWidth()
+      wrapSet = true
+    }
+
+    return wrap
+  }
+
+  var deferY18nLookupPrefix = '__yargsString__:'
+  self.deferY18nLookup = function (str) {
+    return deferY18nLookupPrefix + str
+  }
+
+  var defaultGroup = 'Options:'
+  self.help = function () {
+    normalizeAliases()
+
+    // handle old demanded API
+    var demandedOptions = yargs.getDemandedOptions()
+    var demandedCommands = yargs.getDemandedCommands()
+    var groups = yargs.getGroups()
+    var options = yargs.getOptions()
+    var keys = Object.keys(
+      Object.keys(descriptions)
+      .concat(Object.keys(demandedOptions))
+      .concat(Object.keys(demandedCommands))
+      .concat(Object.keys(options.default))
+      .reduce(function (acc, key) {
+        if (key !== '_') acc[key] = true
+        return acc
+      }, {})
+    )
+
+    var theWrap = getWrap()
+    var ui = require('cliui')({
+      width: theWrap,
+      wrap: !!theWrap
+    })
+
+    // the usage string.
+    if (usage) {
+      var u = usage.replace(/\$0/g, yargs.$0)
+      ui.div(u + '\n')
+    }
+
+    // your application's commands, i.e., non-option
+    // arguments populated in '_'.
+    if (commands.length) {
+      ui.div(__('Commands:'))
+
+      commands.forEach(function (command) {
+        ui.span(
+          {text: command[0], padding: [0, 2, 0, 2], width: maxWidth(commands, theWrap) + 4},
+          {text: command[1]}
+        )
+        if (command[2] && command[2].length) {
+          ui.div({text: '[' + __('aliases:') + ' ' + command[2].join(', ') + ']', padding: [0, 0, 0, 2], align: 'right'})
+        } else {
+          ui.div()
+        }
+      })
+
+      ui.div()
+    }
+
+    // perform some cleanup on the keys array, making it
+    // only include top-level keys not their aliases.
+    var aliasKeys = (Object.keys(options.alias) || [])
+      .concat(Object.keys(yargs.parsed.newAliases) || [])
+
+    keys = keys.filter(function (key) {
+      return !yargs.parsed.newAliases[key] && aliasKeys.every(function (alias) {
+        return (options.alias[alias] || []).indexOf(key) === -1
+      })
+    })
+
+    // populate 'Options:' group with any keys that have not
+    // explicitly had a group set.
+    if (!groups[defaultGroup]) groups[defaultGroup] = []
+    addUngroupedKeys(keys, options.alias, groups)
+
+    // display 'Options:' table along with any custom tables:
+    Object.keys(groups).forEach(function (groupName) {
+      if (!groups[groupName].length) return
+
+      ui.div(__(groupName))
+
+      // if we've grouped the key 'f', but 'f' aliases 'foobar',
+      // normalizedKeys should contain only 'foobar'.
+      var normalizedKeys = groups[groupName].map(function (key) {
+        if (~aliasKeys.indexOf(key)) return key
+        for (var i = 0, aliasKey; (aliasKey = aliasKeys[i]) !== undefined; i++) {
+          if (~(options.alias[aliasKey] || []).indexOf(key)) return aliasKey
+        }
+        return key
+      })
+
+      // actually generate the switches string --foo, -f, --bar.
+      var switches = normalizedKeys.reduce(function (acc, key) {
+        acc[key] = [ key ].concat(options.alias[key] || [])
+          .map(function (sw) {
+            return (sw.length > 1 ? '--' : '-') + sw
+          })
+          .join(', ')
+
+        return acc
+      }, {})
+
+      normalizedKeys.forEach(function (key) {
+        var kswitch = switches[key]
+        var desc = descriptions[key] || ''
+        var type = null
+
+        if (~desc.lastIndexOf(deferY18nLookupPrefix)) desc = __(desc.substring(deferY18nLookupPrefix.length))
+
+        if (~options.boolean.indexOf(key)) type = '[' + __('boolean') + ']'
+        if (~options.count.indexOf(key)) type = '[' + __('count') + ']'
+        if (~options.string.indexOf(key)) type = '[' + __('string') + ']'
+        if (~options.normalize.indexOf(key)) type = '[' + __('string') + ']'
+        if (~options.array.indexOf(key)) type = '[' + __('array') + ']'
+        if (~options.number.indexOf(key)) type = '[' + __('number') + ']'
+
+        var extra = [
+          type,
+          demandedOptions[key] ? '[' + __('required') + ']' : null,
+          options.choices && options.choices[key] ? '[' + __('choices:') + ' ' +
+            self.stringifiedValues(options.choices[key]) + ']' : null,
+          defaultString(options.default[key], options.defaultDescription[key])
+        ].filter(Boolean).join(' ')
+
+        ui.span(
+          {text: kswitch, padding: [0, 2, 0, 2], width: maxWidth(switches, theWrap) + 4},
+          desc
+        )
+
+        if (extra) ui.div({text: extra, padding: [0, 0, 0, 2], align: 'right'})
+        else ui.div()
+      })
+
+      ui.div()
+    })
+
+    // describe some common use-cases for your application.
+    if (examples.length) {
+      ui.div(__('Examples:'))
+
+      examples.forEach(function (example) {
+        example[0] = example[0].replace(/\$0/g, yargs.$0)
+      })
+
+      examples.forEach(function (example) {
+        ui.div(
+          {text: example[0], padding: [0, 2, 0, 2], width: maxWidth(examples, theWrap) + 4},
+          example[1]
+        )
+      })
+
+      ui.div()
+    }
+
+    // the usage string.
+    if (epilog) {
+      var e = epilog.replace(/\$0/g, yargs.$0)
+      ui.div(e + '\n')
+    }
+
+    return ui.toString()
+  }
+
+  // return the maximum width of a string
+  // in the left-hand column of a table.
+  function maxWidth (table, theWrap) {
+    var width = 0
+
+    // table might be of the form [leftColumn],
+    // or {key: leftColumn}
+    if (!Array.isArray(table)) {
+      table = Object.keys(table).map(function (key) {
+        return [table[key]]
+      })
+    }
+
+    table.forEach(function (v) {
+      width = Math.max(stringWidth(v[0]), width)
+    })
+
+    // if we've enabled 'wrap' we should limit
+    // the max-width of the left-column.
+    if (theWrap) width = Math.min(width, parseInt(theWrap * 0.5, 10))
+
+    return width
+  }
+
+  // make sure any options set for aliases,
+  // are copied to the keys being aliased.
+  function normalizeAliases () {
+    // handle old demanded API
+    var demandedOptions = yargs.getDemandedOptions()
+    var options = yargs.getOptions()
+
+    ;(Object.keys(options.alias) || []).forEach(function (key) {
+      options.alias[key].forEach(function (alias) {
+        // copy descriptions.
+        if (descriptions[alias]) self.describe(key, descriptions[alias])
+        // copy demanded.
+        if (demandedOptions[alias]) yargs.demandOption(key, demandedOptions[alias].msg)
+        // type messages.
+        if (~options.boolean.indexOf(alias)) yargs.boolean(key)
+        if (~options.count.indexOf(alias)) yargs.count(key)
+        if (~options.string.indexOf(alias)) yargs.string(key)
+        if (~options.normalize.indexOf(alias)) yargs.normalize(key)
+        if (~options.array.indexOf(alias)) yargs.array(key)
+        if (~options.number.indexOf(alias)) yargs.number(key)
+      })
+    })
+  }
+
+  // given a set of keys, place any keys that are
+  // ungrouped under the 'Options:' grouping.
+  function addUngroupedKeys (keys, aliases, groups) {
+    var groupedKeys = []
+    var toCheck = null
+    Object.keys(groups).forEach(function (group) {
+      groupedKeys = groupedKeys.concat(groups[group])
+    })
+
+    keys.forEach(function (key) {
+      toCheck = [key].concat(aliases[key])
+      if (!toCheck.some(function (k) {
+        return groupedKeys.indexOf(k) !== -1
+      })) {
+        groups[defaultGroup].push(key)
+      }
+    })
+    return groupedKeys
+  }
+
+  self.showHelp = function (level) {
+    const logger = yargs._getLoggerInstance()
+    if (!level) level = 'error'
+    var emit = typeof level === 'function' ? level : logger[level]
+    emit(self.help())
+  }
+
+  self.functionDescription = function (fn) {
+    var description = fn.name ? require('decamelize')(fn.name, '-') : __('generated-value')
+    return ['(', description, ')'].join('')
+  }
+
+  self.stringifiedValues = function (values, separator) {
+    var string = ''
+    var sep = separator || ', '
+    var array = [].concat(values)
+
+    if (!values || !array.length) return string
+
+    array.forEach(function (value) {
+      if (string.length) string += sep
+      string += JSON.stringify(value)
+    })
+
+    return string
+  }
+
+  // format the default-value-string displayed in
+  // the right-hand column.
+  function defaultString (value, defaultDescription) {
+    var string = '[' + __('default:') + ' '
+
+    if (value === undefined && !defaultDescription) return null
+
+    if (defaultDescription) {
+      string += defaultDescription
+    } else {
+      switch (typeof value) {
+        case 'string':
+          string += JSON.stringify(value)
+          break
+        case 'object':
+          string += JSON.stringify(value)
+          break
+        default:
+          string += value
+      }
+    }
+
+    return string + ']'
+  }
+
+  // guess the width of the console window, max-width 80.
+  function windowWidth () {
+    var maxWidth = 80
+    if (typeof process === 'object' && process.stdout && process.stdout.columns) {
+      return Math.min(maxWidth, process.stdout.columns)
+    } else {
+      return maxWidth
+    }
+  }
+
+  // logic for displaying application version.
+  var version = null
+  self.version = function (ver) {
+    version = ver
+  }
+
+  self.showVersion = function () {
+    const logger = yargs._getLoggerInstance()
+    if (typeof version === 'function') logger.log(version())
+    else logger.log(version)
+  }
+
+  self.reset = function (globalLookup) {
+    // do not reset wrap here
+    // do not reset fails here
+    failMessage = null
+    failureOutput = false
+    usage = undefined
+    epilog = undefined
+    examples = []
+    commands = []
+    descriptions = objFilter(descriptions, function (k, v) {
+      return globalLookup[k]
+    })
+    return self
+  }
+
+  var frozen
+  self.freeze = function () {
+    frozen = {}
+    frozen.failMessage = failMessage
+    frozen.failureOutput = failureOutput
+    frozen.usage = usage
+    frozen.epilog = epilog
+    frozen.examples = examples
+    frozen.commands = commands
+    frozen.descriptions = descriptions
+  }
+  self.unfreeze = function () {
+    failMessage = frozen.failMessage
+    failureOutput = frozen.failureOutput
+    usage = frozen.usage
+    epilog = frozen.epilog
+    examples = frozen.examples
+    commands = frozen.commands
+    descriptions = frozen.descriptions
+    frozen = undefined
+  }
+
+  return self
+}
diff --git a/helloworld/node_modules/yargs/lib/validation.js b/helloworld/node_modules/yargs/lib/validation.js
new file mode 100755
index 0000000..328d83a
--- /dev/null
+++ b/helloworld/node_modules/yargs/lib/validation.js
@@ -0,0 +1,351 @@
+const objFilter = require('./obj-filter')
+
+// validation-type-stuff, missing params,
+// bad implications, custom checks.
+module.exports = function (yargs, usage, y18n) {
+  const __ = y18n.__
+  const __n = y18n.__n
+  const self = {}
+
+  // validate appropriate # of non-option
+  // arguments were provided, i.e., '_'.
+  self.nonOptionCount = function (argv) {
+    const demandedCommands = yargs.getDemandedCommands()
+    // don't count currently executing commands
+    const _s = argv._.length - yargs.getContext().commands.length
+
+    if (demandedCommands._ && (_s < demandedCommands._.min || _s > demandedCommands._.max)) {
+      if (_s < demandedCommands._.min) {
+        if (demandedCommands._.minMsg !== undefined) {
+          usage.fail(
+            // replace $0 with observed, $1 with expected.
+            demandedCommands._.minMsg ? demandedCommands._.minMsg.replace(/\$0/g, _s).replace(/\$1/, demandedCommands._.min) : null
+          )
+        } else {
+          usage.fail(
+            __('Not enough non-option arguments: got %s, need at least %s', _s, demandedCommands._.min)
+          )
+        }
+      } else if (_s > demandedCommands._.max) {
+        if (demandedCommands._.maxMsg !== undefined) {
+          usage.fail(
+            // replace $0 with observed, $1 with expected.
+            demandedCommands._.maxMsg ? demandedCommands._.maxMsg.replace(/\$0/g, _s).replace(/\$1/, demandedCommands._.max) : null
+          )
+        } else {
+          usage.fail(
+          __('Too many non-option arguments: got %s, maximum of %s', _s, demandedCommands._.max)
+          )
+        }
+      }
+    }
+  }
+
+  // validate the appropriate # of <required>
+  // positional arguments were provided:
+  self.positionalCount = function (required, observed) {
+    if (observed < required) {
+      usage.fail(
+        __('Not enough non-option arguments: got %s, need at least %s', observed, required)
+      )
+    }
+  }
+
+  // make sure that any args that require an
+  // value (--foo=bar), have a value.
+  self.missingArgumentValue = function (argv) {
+    const defaultValues = [true, false, '']
+    const options = yargs.getOptions()
+
+    if (options.requiresArg.length > 0) {
+      const missingRequiredArgs = []
+
+      options.requiresArg.forEach(function (key) {
+        const value = argv[key]
+
+        // if a value is explicitly requested,
+        // flag argument as missing if it does not
+        // look like foo=bar was entered.
+        if (~defaultValues.indexOf(value) ||
+          (Array.isArray(value) && !value.length)) {
+          missingRequiredArgs.push(key)
+        }
+      })
+
+      if (missingRequiredArgs.length > 0) {
+        usage.fail(__n(
+          'Missing argument value: %s',
+          'Missing argument values: %s',
+          missingRequiredArgs.length,
+          missingRequiredArgs.join(', ')
+        ))
+      }
+    }
+  }
+
+  // make sure all the required arguments are present.
+  self.requiredArguments = function (argv) {
+    const demandedOptions = yargs.getDemandedOptions()
+    var missing = null
+
+    Object.keys(demandedOptions).forEach(function (key) {
+      if (!argv.hasOwnProperty(key)) {
+        missing = missing || {}
+        missing[key] = demandedOptions[key]
+      }
+    })
+
+    if (missing) {
+      const customMsgs = []
+      Object.keys(missing).forEach(function (key) {
+        const msg = missing[key].msg
+        if (msg && customMsgs.indexOf(msg) < 0) {
+          customMsgs.push(msg)
+        }
+      })
+
+      const customMsg = customMsgs.length ? '\n' + customMsgs.join('\n') : ''
+
+      usage.fail(__n(
+        'Missing required argument: %s',
+        'Missing required arguments: %s',
+        Object.keys(missing).length,
+        Object.keys(missing).join(', ') + customMsg
+      ))
+    }
+  }
+
+  // check for unknown arguments (strict-mode).
+  self.unknownArguments = function (argv, aliases) {
+    const aliasLookup = {}
+    const descriptions = usage.getDescriptions()
+    const demandedOptions = yargs.getDemandedOptions()
+    const commandKeys = yargs.getCommandInstance().getCommands()
+    const unknown = []
+    const currentContext = yargs.getContext()
+
+    Object.keys(aliases).forEach(function (key) {
+      aliases[key].forEach(function (alias) {
+        aliasLookup[alias] = key
+      })
+    })
+
+    Object.keys(argv).forEach(function (key) {
+      if (key !== '$0' && key !== '_' &&
+        !descriptions.hasOwnProperty(key) &&
+        !demandedOptions.hasOwnProperty(key) &&
+        !aliasLookup.hasOwnProperty(key)) {
+        unknown.push(key)
+      }
+    })
+
+    if (commandKeys.length > 0) {
+      argv._.slice(currentContext.commands.length).forEach(function (key) {
+        if (commandKeys.indexOf(key) === -1) {
+          unknown.push(key)
+        }
+      })
+    }
+
+    if (unknown.length > 0) {
+      usage.fail(__n(
+        'Unknown argument: %s',
+        'Unknown arguments: %s',
+        unknown.length,
+        unknown.join(', ')
+      ))
+    }
+  }
+
+  // validate arguments limited to enumerated choices
+  self.limitedChoices = function (argv) {
+    const options = yargs.getOptions()
+    const invalid = {}
+
+    if (!Object.keys(options.choices).length) return
+
+    Object.keys(argv).forEach(function (key) {
+      if (key !== '$0' && key !== '_' &&
+        options.choices.hasOwnProperty(key)) {
+        [].concat(argv[key]).forEach(function (value) {
+          // TODO case-insensitive configurability
+          if (options.choices[key].indexOf(value) === -1) {
+            invalid[key] = (invalid[key] || []).concat(value)
+          }
+        })
+      }
+    })
+
+    const invalidKeys = Object.keys(invalid)
+
+    if (!invalidKeys.length) return
+
+    var msg = __('Invalid values:')
+    invalidKeys.forEach(function (key) {
+      msg += '\n  ' + __(
+        'Argument: %s, Given: %s, Choices: %s',
+        key,
+        usage.stringifiedValues(invalid[key]),
+        usage.stringifiedValues(options.choices[key])
+      )
+    })
+    usage.fail(msg)
+  }
+
+  // custom checks, added using the `check` option on yargs.
+  var checks = []
+  self.check = function (f) {
+    checks.push(f)
+  }
+
+  self.customChecks = function (argv, aliases) {
+    for (var i = 0, f; (f = checks[i]) !== undefined; i++) {
+      var result = null
+      try {
+        result = f(argv, aliases)
+      } catch (err) {
+        usage.fail(err.message ? err.message : err, err)
+        continue
+      }
+
+      if (!result) {
+        usage.fail(__('Argument check failed: %s', f.toString()))
+      } else if (typeof result === 'string' || result instanceof Error) {
+        usage.fail(result.toString(), result)
+      }
+    }
+  }
+
+  // check implications, argument foo implies => argument bar.
+  var implied = {}
+  self.implies = function (key, value) {
+    if (typeof key === 'object') {
+      Object.keys(key).forEach(function (k) {
+        self.implies(k, key[k])
+      })
+    } else {
+      implied[key] = value
+    }
+  }
+  self.getImplied = function () {
+    return implied
+  }
+
+  self.implications = function (argv) {
+    const implyFail = []
+
+    Object.keys(implied).forEach(function (key) {
+      var num
+      const origKey = key
+      var value = implied[key]
+
+      // convert string '1' to number 1
+      num = Number(key)
+      key = isNaN(num) ? key : num
+
+      if (typeof key === 'number') {
+        // check length of argv._
+        key = argv._.length >= key
+      } else if (key.match(/^--no-.+/)) {
+        // check if key doesn't exist
+        key = key.match(/^--no-(.+)/)[1]
+        key = !argv[key]
+      } else {
+        // check if key exists
+        key = argv[key]
+      }
+
+      num = Number(value)
+      value = isNaN(num) ? value : num
+
+      if (typeof value === 'number') {
+        value = argv._.length >= value
+      } else if (value.match(/^--no-.+/)) {
+        value = value.match(/^--no-(.+)/)[1]
+        value = !argv[value]
+      } else {
+        value = argv[value]
+      }
+
+      if (key && !value) {
+        implyFail.push(origKey)
+      }
+    })
+
+    if (implyFail.length) {
+      var msg = __('Implications failed:') + '\n'
+
+      implyFail.forEach(function (key) {
+        msg += ('  ' + key + ' -> ' + implied[key])
+      })
+
+      usage.fail(msg)
+    }
+  }
+
+  var conflicting = {}
+  self.conflicts = function (key, value) {
+    if (typeof key === 'object') {
+      Object.keys(key).forEach(function (k) {
+        self.conflicts(k, key[k])
+      })
+    } else {
+      conflicting[key] = value
+    }
+  }
+  self.getConflicting = function () {
+    return conflicting
+  }
+
+  self.conflicting = function (argv) {
+    var args = Object.getOwnPropertyNames(argv)
+
+    args.forEach(function (arg) {
+      if (conflicting[arg] && args.indexOf(conflicting[arg]) !== -1) {
+        usage.fail(__('Arguments %s and %s are mutually exclusive', arg, conflicting[arg]))
+      }
+    })
+  }
+
+  self.recommendCommands = function (cmd, potentialCommands) {
+    const distance = require('./levenshtein')
+    const threshold = 3 // if it takes more than three edits, let's move on.
+    potentialCommands = potentialCommands.sort(function (a, b) { return b.length - a.length })
+
+    var recommended = null
+    var bestDistance = Infinity
+    for (var i = 0, candidate; (candidate = potentialCommands[i]) !== undefined; i++) {
+      var d = distance(cmd, candidate)
+      if (d <= threshold && d < bestDistance) {
+        bestDistance = d
+        recommended = candidate
+      }
+    }
+    if (recommended) usage.fail(__('Did you mean %s?', recommended))
+  }
+
+  self.reset = function (globalLookup) {
+    implied = objFilter(implied, function (k, v) {
+      return globalLookup[k]
+    })
+    checks = []
+    conflicting = {}
+    return self
+  }
+
+  var frozen
+  self.freeze = function () {
+    frozen = {}
+    frozen.implied = implied
+    frozen.checks = checks
+    frozen.conflicting = conflicting
+  }
+  self.unfreeze = function () {
+    implied = frozen.implied
+    checks = frozen.checks
+    conflicting = frozen.conflicting
+    frozen = undefined
+  }
+
+  return self
+}
diff --git a/helloworld/node_modules/yargs/locales/be.json b/helloworld/node_modules/yargs/locales/be.json
new file mode 100755
index 0000000..141ebe1
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/be.json
@@ -0,0 +1,39 @@
+{
+  "Commands:": "Каманды:",
+  "Options:": "Опцыі:",
+  "Examples:": "Прыклады:",
+  "boolean": "булевы тып",
+  "count": "падлік",
+  "string": "радковы тып",
+  "number": "лік",
+  "array": "масіў",
+  "required": "неабходна",
+  "default:": "па змаўчанні:",
+  "choices:": "магчымасці:",
+  "aliases:": "аліасы:",
+  "generated-value": "згенераванае значэнне",
+  "Not enough non-option arguments: got %s, need at least %s": "Недастаткова неапцыйных аргументаў: ёсць %s, трэба як мінімум %s",
+  "Too many non-option arguments: got %s, maximum of %s": "Занадта шмат неапцыйных аргументаў: ёсць %s, максімум дапушчальна %s",
+  "Missing argument value: %s": {
+    "one": "Не хапае значэння аргументу: %s",
+    "other": "Не хапае значэнняў аргументаў: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "Не хапае неабходнага аргументу: %s",
+    "other": "Не хапае неабходных аргументаў: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "Невядомы аргумент: %s",
+    "other": "Невядомыя аргументы: %s"
+  },
+  "Invalid values:": "Несапраўдныя значэння:",
+  "Argument: %s, Given: %s, Choices: %s": "Аргумент: %s, Дадзенае значэнне: %s, Магчымасці: %s",
+  "Argument check failed: %s": "Праверка аргументаў не ўдалася: %s",
+  "Implications failed:": "Дадзены аргумент патрабуе наступны дадатковы аргумент:",
+  "Not enough arguments following: %s": "Недастаткова наступных аргументаў: %s",
+  "Invalid JSON config file: %s": "Несапраўдны файл канфігурацыі JSON: %s",
+  "Path to JSON config file": "Шлях да файла канфігурацыі JSON",
+  "Show help": "Паказаць дапамогу",
+  "Show version number": "Паказаць нумар версіі",
+  "Did you mean %s?": "Вы мелі на ўвазе %s?"
+}
diff --git a/helloworld/node_modules/yargs/locales/de.json b/helloworld/node_modules/yargs/locales/de.json
new file mode 100755
index 0000000..d805710
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/de.json
@@ -0,0 +1,39 @@
+{
+  "Commands:": "Kommandos:",
+  "Options:": "Optionen:",
+  "Examples:": "Beispiele:",
+  "boolean": "boolean",
+  "count": "Zähler",
+  "string": "string",
+  "number": "Zahl",
+  "array": "array",
+  "required": "erforderlich",
+  "default:": "Standard:",
+  "choices:": "Möglichkeiten:",
+  "aliases:": "Aliase:",
+  "generated-value": "Generierter-Wert",
+  "Not enough non-option arguments: got %s, need at least %s": "Nicht genügend Argumente ohne Optionen: %s vorhanden, mindestens %s benötigt",
+  "Too many non-option arguments: got %s, maximum of %s": "Zu viele Argumente ohne Optionen: %s vorhanden, maximal %s erlaubt",
+  "Missing argument value: %s": {
+    "one": "Fehlender Argumentwert: %s",
+    "other": "Fehlende Argumentwerte: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "Fehlendes Argument: %s",
+    "other": "Fehlende Argumente: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "Unbekanntes Argument: %s",
+    "other": "Unbekannte Argumente: %s"
+  },
+  "Invalid values:": "Unzulässige Werte:",
+  "Argument: %s, Given: %s, Choices: %s": "Argument: %s, Gegeben: %s, Möglichkeiten: %s",
+  "Argument check failed: %s": "Argumente-Check fehlgeschlagen: %s",
+  "Implications failed:": "Implikationen fehlgeschlagen:",
+  "Not enough arguments following: %s": "Nicht genügend Argumente nach: %s",
+  "Invalid JSON config file: %s": "Fehlerhafte JSON-Config Datei: %s",
+  "Path to JSON config file": "Pfad zur JSON-Config Datei",
+  "Show help": "Hilfe anzeigen",
+  "Show version number": "Version anzeigen",
+  "Did you mean %s?": "Meintest du %s?"
+}
diff --git a/helloworld/node_modules/yargs/locales/en.json b/helloworld/node_modules/yargs/locales/en.json
new file mode 100755
index 0000000..4a618e7
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/en.json
@@ -0,0 +1,40 @@
+{
+  "Commands:": "Commands:",
+  "Options:": "Options:",
+  "Examples:": "Examples:",
+  "boolean": "boolean",
+  "count": "count",
+  "string": "string",
+  "number": "number",
+  "array": "array",
+  "required": "required",
+  "default:": "default:",
+  "choices:": "choices:",
+  "aliases:": "aliases:",
+  "generated-value": "generated-value",
+  "Not enough non-option arguments: got %s, need at least %s": "Not enough non-option arguments: got %s, need at least %s",
+  "Too many non-option arguments: got %s, maximum of %s": "Too many non-option arguments: got %s, maximum of %s",
+  "Missing argument value: %s": {
+    "one": "Missing argument value: %s",
+    "other": "Missing argument values: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "Missing required argument: %s",
+    "other": "Missing required arguments: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "Unknown argument: %s",
+    "other": "Unknown arguments: %s"
+  },
+  "Invalid values:": "Invalid values:",
+  "Argument: %s, Given: %s, Choices: %s": "Argument: %s, Given: %s, Choices: %s",
+  "Argument check failed: %s": "Argument check failed: %s",
+  "Implications failed:": "Implications failed:",
+  "Not enough arguments following: %s": "Not enough arguments following: %s",
+  "Invalid JSON config file: %s": "Invalid JSON config file: %s",
+  "Path to JSON config file": "Path to JSON config file",
+  "Show help": "Show help",
+  "Show version number": "Show version number",
+  "Did you mean %s?": "Did you mean %s?",
+  "Arguments %s and %s are mutually exclusive" : "Arguments %s and %s are mutually exclusive"
+}
diff --git a/helloworld/node_modules/yargs/locales/es.json b/helloworld/node_modules/yargs/locales/es.json
new file mode 100755
index 0000000..d7c8af9
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/es.json
@@ -0,0 +1,39 @@
+{
+  "Commands:": "Comandos:",
+  "Options:": "Opciones:",
+  "Examples:": "Ejemplos:",
+  "boolean": "booleano",
+  "count": "cuenta",
+  "string": "cadena de caracteres",
+  "number": "número",
+  "array": "tabla",
+  "required": "requerido",
+  "default:": "defecto:",
+  "choices:": "selección:",
+  "aliases:": "alias:",
+  "generated-value": "valor-generado",
+  "Not enough non-option arguments: got %s, need at least %s": "Hacen falta argumentos no-opcionales: Número recibido %s, necesita por lo menos %s",
+  "Too many non-option arguments: got %s, maximum of %s": "Demasiados argumentos no-opcionales: Número recibido %s, máximo es %s",
+  "Missing argument value: %s": {
+    "one": "Falta argumento: %s",
+    "other": "Faltan argumentos: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "Falta argumento requerido: %s",
+    "other": "Faltan argumentos requeridos: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "Argumento desconocido: %s",
+    "other": "Argumentos desconocidos: %s"
+  },
+  "Invalid values:": "Valores inválidos:",
+  "Argument: %s, Given: %s, Choices: %s": "Argumento: %s, Recibido: %s, Seleccionados: %s",
+  "Argument check failed: %s": "Verificación de argumento ha fallado: %s",
+  "Implications failed:": "Implicaciones fallidas:",
+  "Not enough arguments following: %s": "No hay suficientes argumentos después de: %s",
+  "Invalid JSON config file: %s": "Archivo de configuración JSON inválido: %s",
+  "Path to JSON config file": "Ruta al archivo de configuración JSON",
+  "Show help": "Muestra ayuda",
+  "Show version number": "Muestra número de versión",
+  "Did you mean %s?": "Quisiste decir %s?"
+}
diff --git a/helloworld/node_modules/yargs/locales/fr.json b/helloworld/node_modules/yargs/locales/fr.json
new file mode 100755
index 0000000..481f47e
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/fr.json
@@ -0,0 +1,37 @@
+{
+  "Commands:": "Commandes:",
+  "Options:": "Options:",
+  "Examples:": "Exemples:",
+  "boolean": "booléen",
+  "count": "comptage",
+  "string": "chaine de caractère",
+  "number": "nombre",
+  "array": "tableau",
+  "required": "requis",
+  "default:": "défaut:",
+  "choices:": "choix:",
+  "generated-value": "valeur générée",
+  "Not enough non-option arguments: got %s, need at least %s": "Pas assez d'arguments non-option: reçu %s, besoin d'au moins %s",
+  "Too many non-option arguments: got %s, maximum of %s": "Trop d'arguments non-option: reçu %s, maximum %s",
+  "Missing argument value: %s": {
+    "one": "Argument manquant: %s",
+    "other": "Arguments manquants: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "Argument requis manquant: %s",
+    "other": "Arguments requis manquants: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "Argument inconnu: %s",
+    "other": "Arguments inconnus: %s"
+  },
+  "Invalid values:": "Valeurs invalides:",
+  "Argument: %s, Given: %s, Choices: %s": "Argument: %s, Donné: %s, Choix: %s",
+  "Argument check failed: %s": "Echec de la vérification de l'argument: %s",
+  "Implications failed:": "Implications échouées:",
+  "Not enough arguments following: %s": "Pas assez d'arguments suivant: %s",
+  "Invalid JSON config file: %s": "Fichier de configuration JSON invalide: %s",
+  "Path to JSON config file": "Chemin du fichier de configuration JSON",
+  "Show help": "Affiche de l'aide",
+  "Show version number": "Affiche le numéro de version"
+}
diff --git a/helloworld/node_modules/yargs/locales/hi.json b/helloworld/node_modules/yargs/locales/hi.json
new file mode 100755
index 0000000..2a9826d
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/hi.json
@@ -0,0 +1,39 @@
+{
+  "Commands:": "आदेश:",
+  "Options:": "विकल्प:",
+  "Examples:": "उदाहरण:",
+  "boolean": "सत्यता",
+  "count": "संख्या",
+  "string": "वर्णों का तार ",
+  "number": "अंक",
+  "array": "सरणी",
+  "required": "आवश्यक",
+  "default:": "डिफॉल्ट:",
+  "choices:": "विकल्प:",
+  "aliases:": "उपनाम:",
+  "generated-value": "उत्पन्न-मूल्य",
+  "Not enough non-option arguments: got %s, need at least %s": "पर्याप्त गैर-विकल्प तर्क प्राप्त नहीं: %s प्राप्त, कम से कम %s की आवश्यकता है",
+  "Too many non-option arguments: got %s, maximum of %s": "बहुत सारे गैर-विकल्प तर्क: %s प्राप्त, अधिकतम %s मान्य",
+  "Missing argument value: %s": {
+    "one": "कुछ तर्को के मूल्य गुम हैं: %s",
+    "other": "कुछ तर्को के मूल्य गुम हैं: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "आवश्यक तर्क गुम हैं: %s",
+    "other": "आवश्यक तर्क गुम हैं: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "अज्ञात तर्क प्राप्त: %s",
+    "other": "अज्ञात तर्क प्राप्त: %s"
+  },
+  "Invalid values:": "अमान्य मूल्य:",
+  "Argument: %s, Given: %s, Choices: %s": "तर्क: %s, प्राप्त: %s, विकल्प: %s",
+  "Argument check failed: %s": "तर्क जांच विफल: %s",
+  "Implications failed:": "दिए गए तर्क के लिए अतिरिक्त तर्क की अपेक्षा है:",
+  "Not enough arguments following: %s": "निम्नलिखित के बाद पर्याप्त तर्क नहीं प्राप्त: %s",
+  "Invalid JSON config file: %s": "अमान्य JSON config फाइल: %s",
+  "Path to JSON config file": "JSON config फाइल का पथ",
+  "Show help": "सहायता दिखाएँ",
+  "Show version number": "Version संख्या दिखाएँ",
+  "Did you mean %s?": "क्या आपका मतलब है %s?"
+}
diff --git a/helloworld/node_modules/yargs/locales/hu.json b/helloworld/node_modules/yargs/locales/hu.json
new file mode 100755
index 0000000..7b7d166
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/hu.json
@@ -0,0 +1,39 @@
+{
+  "Commands:": "Parancsok:",
+  "Options:": "Opciók:",
+  "Examples:": "Példák:",
+  "boolean": "boolean",
+  "count": "számláló",
+  "string": "szöveg",
+  "number": "szám",
+  "array": "tömb",
+  "required": "kötelező",
+  "default:": "alapértelmezett:",
+  "choices:": "lehetőségek:",
+  "aliases:": "aliaszok:",
+  "generated-value": "generált-érték",
+  "Not enough non-option arguments: got %s, need at least %s": "Nincs elég nem opcionális argumentum: %s van, legalább %s kell",
+  "Too many non-option arguments: got %s, maximum of %s": "Túl sok nem opciánlis argumentum van: %s van, maximum %s lehet",
+  "Missing argument value: %s": {
+    "one": "Hiányzó argumentum érték: %s",
+    "other": "Hiányzó argumentum értékek: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "Hiányzó kötelező argumentum: %s",
+    "other": "Hiányzó kötelező argumentumok: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "Ismeretlen argumentum: %s",
+    "other": "Ismeretlen argumentumok: %s"
+  },
+  "Invalid values:": "Érvénytelen érték:",
+  "Argument: %s, Given: %s, Choices: %s": "Argumentum: %s, Megadott: %s, Lehetőségek: %s",
+  "Argument check failed: %s": "Argumentum ellenőrzés sikertelen: %s",
+  "Implications failed:": "Implikációk sikertelenek:",
+  "Not enough arguments following: %s": "Nem elég argumentum követi: %s",
+  "Invalid JSON config file: %s": "Érvénytelen JSON konfigurációs file: %s",
+  "Path to JSON config file": "JSON konfigurációs file helye",
+  "Show help": "Súgo megjelenítése",
+  "Show version number": "Verziószám megjelenítése",
+  "Did you mean %s?": "Erre gondoltál %s?"
+}
diff --git a/helloworld/node_modules/yargs/locales/id.json b/helloworld/node_modules/yargs/locales/id.json
new file mode 100755
index 0000000..a06e860
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/id.json
@@ -0,0 +1,40 @@
+
+{
+  "Commands:": "Perintah:",
+  "Options:": "Pilihan:",
+  "Examples:": "Contoh:",
+  "boolean": "boolean",
+  "count": "jumlah",
+  "number": "nomor",
+  "string": "string",
+  "array": "larik",
+  "required": "diperlukan",
+  "default:": "bawaan:",
+  "aliases:": "istilah lain:",
+  "choices:": "pilihan:",
+  "generated-value": "nilai-yang-dihasilkan",
+  "Not enough non-option arguments: got %s, need at least %s": "Argumen wajib kurang: hanya %s, minimal %s",
+  "Too many non-option arguments: got %s, maximum of %s": "Terlalu banyak argumen wajib: ada %s, maksimal %s",
+  "Missing argument value: %s": {
+    "one": "Kurang argumen: %s",
+    "other": "Kurang argumen: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "Kurang argumen wajib: %s",
+    "other": "Kurang argumen wajib: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "Argumen tak diketahui: %s",
+    "other": "Argumen tak diketahui: %s"
+  },
+  "Invalid values:": "Nilai-nilai tidak valid:",
+  "Argument: %s, Given: %s, Choices: %s": "Argumen: %s, Diberikan: %s, Pilihan: %s",
+  "Argument check failed: %s": "Pemeriksaan argument gagal: %s",
+  "Implications failed:": "Implikasi gagal:",
+  "Not enough arguments following: %s": "Kurang argumen untuk: %s",
+  "Invalid JSON config file: %s": "Berkas konfigurasi JSON tidak valid: %s",
+  "Path to JSON config file": "Alamat berkas konfigurasi JSON",
+  "Show help": "Lihat bantuan",
+  "Show version number": "Lihat nomor versi",
+  "Did you mean %s?": "Maksud Anda: %s?"
+}
diff --git a/helloworld/node_modules/yargs/locales/it.json b/helloworld/node_modules/yargs/locales/it.json
new file mode 100755
index 0000000..f9eb375
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/it.json
@@ -0,0 +1,39 @@
+{
+  "Commands:": "Comandi:",
+  "Options:": "Opzioni:",
+  "Examples:": "Esempi:",
+  "boolean": "booleano",
+  "count": "contatore",
+  "string": "stringa",
+  "number": "numero",
+  "array": "vettore",
+  "required": "richiesto",
+  "default:": "predefinito:",
+  "choices:": "scelte:",
+  "aliases:": "alias:",
+  "generated-value": "valore generato",
+  "Not enough non-option arguments: got %s, need at least %s": "Numero insufficiente di argomenti non opzione: inseriti %s, richiesti almeno %s",
+  "Too many non-option arguments: got %s, maximum of %s": "Troppi argomenti non opzione: inseriti %s, massimo possibile %s",
+  "Missing argument value: %s": {
+    "one": "Argomento mancante: %s",
+    "other": "Argomenti mancanti: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "Argomento richiesto mancante: %s",
+    "other": "Argomenti richiesti mancanti: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "Argomento sconosciuto: %s",
+    "other": "Argomenti sconosciuti: %s"
+  },
+  "Invalid values:": "Valori non validi:",
+  "Argument: %s, Given: %s, Choices: %s": "Argomento: %s, Richiesto: %s, Scelte: %s",
+  "Argument check failed: %s": "Controllo dell'argomento fallito: %s",
+  "Implications failed:": "Argomenti impliciti non soddisfatti:",
+  "Not enough arguments following: %s": "Argomenti insufficienti dopo: %s",
+  "Invalid JSON config file: %s": "File di configurazione JSON non valido: %s",
+  "Path to JSON config file": "Percorso del file di configurazione JSON",
+  "Show help": "Mostra la schermata di aiuto",
+  "Show version number": "Mostra il numero di versione",
+  "Did you mean %s?": "Intendi forse %s?"
+}
diff --git a/helloworld/node_modules/yargs/locales/ja.json b/helloworld/node_modules/yargs/locales/ja.json
new file mode 100755
index 0000000..45a64a8
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/ja.json
@@ -0,0 +1,39 @@
+{
+  "Commands:": "コマンド:",
+  "Options:": "オプション:",
+  "Examples:": "例:",
+  "boolean": "真偽",
+  "count": "カウント",
+  "string": "文字列",
+  "number": "数値",
+  "array": "配列",
+  "required": "必須",
+  "default:": "デフォルト:",
+  "choices:": "選択してください:",
+  "aliases:": "エイリアス:",
+  "generated-value": "生成された値",
+  "Not enough non-option arguments: got %s, need at least %s": "オプションではない引数が %s 個では不足しています。少なくとも %s 個の引数が必要です:",
+  "Too many non-option arguments: got %s, maximum of %s": "オプションではない引数が %s 個では多すぎます。最大で %s 個までです:",
+  "Missing argument value: %s": {
+    "one": "引数が見つかりません: %s",
+    "other": "引数が見つかりません: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "必須の引数が見つかりません: %s",
+    "other": "必須の引数が見つかりません: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "未知の引数です: %s",
+    "other": "未知の引数です: %s"
+  },
+  "Invalid values:": "不正な値です:",
+  "Argument: %s, Given: %s, Choices: %s": "引数は %s です。指定できるのは %s つです。選択してください: %s",
+  "Argument check failed: %s": "引数のチェックに失敗しました: %s",
+  "Implications failed:": "オプションの組み合わせで不正が生じました:",
+  "Not enough arguments following: %s": "次の引数が不足しています。: %s",
+  "Invalid JSON config file: %s": "JSONの設定ファイルが不正です: %s",
+  "Path to JSON config file": "JSONの設定ファイルまでのpath",
+  "Show help": "ヘルプを表示",
+  "Show version number": "バージョンを表示",
+  "Did you mean %s?": "もしかして %s?"
+}
diff --git a/helloworld/node_modules/yargs/locales/ko.json b/helloworld/node_modules/yargs/locales/ko.json
new file mode 100755
index 0000000..e714984
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/ko.json
@@ -0,0 +1,39 @@
+{
+  "Commands:": "명령:",
+  "Options:": "옵션:",
+  "Examples:": "예시:",
+  "boolean": "여부",
+  "count": "개수",
+  "string": "문자열",
+  "number": "숫자",
+  "array": "배열",
+  "required": "필수",
+  "default:": "기본:",
+  "choices:": "선택:",
+  "aliases:": "별칭:",
+  "generated-value": "생성된 값",
+  "Not enough non-option arguments: got %s, need at least %s": "옵션이 아닌 인자가 충분치 않습니다: %s개를 받았지만, 적어도 %s개는 필요합니다",
+  "Too many non-option arguments: got %s, maximum of %s": "옵션이 아닌 인자가 너무 많습니다: %s개를 받았지만, %s개 이하여야 합니다",
+  "Missing argument value: %s": {
+    "one": "인자값을 받지 못했습니다: %s",
+    "other": "인자값들을 받지 못했습니다: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "필수 인자를 받지 못했습니다: %s",
+    "other": "필수 인자들을 받지 못했습니다: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "알 수 없는 인자입니다: %s",
+    "other": "알 수 없는 인자들입니다: %s"
+  },
+  "Invalid values:": "잘못된 값입니다:",
+  "Argument: %s, Given: %s, Choices: %s": "인자: %s, 입력받은 값: %s, 선택지: %s",
+  "Argument check failed: %s": "유효하지 않은 인자입니다: %s",
+  "Implications failed:": "옵션의 조합이 잘못되었습니다:",
+  "Not enough arguments following: %s": "인자가 충분하게 주어지지 않았습니다: %s",
+  "Invalid JSON config file: %s": "유효하지 않은 JSON 설정파일입니다: %s",
+  "Path to JSON config file": "JSON 설정파일 경로",
+  "Show help": "도움말을 보여줍니다",
+  "Show version number": "버전 넘버를 보여줍니다",
+  "Did you mean %s?": "찾고계신게 %s입니까?"
+}
diff --git a/helloworld/node_modules/yargs/locales/nb.json b/helloworld/node_modules/yargs/locales/nb.json
new file mode 100755
index 0000000..fc607fb
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/nb.json
@@ -0,0 +1,37 @@
+{
+  "Commands:": "Kommandoer:",
+  "Options:": "Alternativer:",
+  "Examples:": "Eksempler:",
+  "boolean": "boolsk",
+  "count": "antall",
+  "string": "streng",
+  "number": "nummer",
+  "array": "matrise",
+  "required": "obligatorisk",
+  "default:": "standard:",
+  "choices:": "valg:",
+  "generated-value": "generert-verdi",
+  "Not enough non-option arguments: got %s, need at least %s": "Ikke nok ikke-alternativ argumenter: fikk %s, trenger minst %s",
+  "Too many non-option arguments: got %s, maximum of %s": "For mange ikke-alternativ argumenter: fikk %s, maksimum %s",
+  "Missing argument value: %s": {
+    "one": "Mangler argument verdi: %s",
+    "other": "Mangler argument verdier: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "Mangler obligatorisk argument: %s",
+    "other": "Mangler obligatoriske argumenter: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "Ukjent argument: %s",
+    "other": "Ukjente argumenter: %s"
+  },
+  "Invalid values:": "Ugyldige verdier:",
+  "Argument: %s, Given: %s, Choices: %s": "Argument: %s, Gitt: %s, Valg: %s",
+  "Argument check failed: %s": "Argument sjekk mislyktes: %s",
+  "Implications failed:": "Konsekvensene mislyktes:",
+  "Not enough arguments following: %s": "Ikke nok følgende argumenter: %s",
+  "Invalid JSON config file: %s": "Ugyldig JSON konfigurasjonsfil: %s",
+  "Path to JSON config file": "Bane til JSON konfigurasjonsfil",
+  "Show help": "Vis hjelp",
+  "Show version number": "Vis versjonsnummer"
+}
diff --git a/helloworld/node_modules/yargs/locales/nl.json b/helloworld/node_modules/yargs/locales/nl.json
new file mode 100755
index 0000000..fc029db
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/nl.json
@@ -0,0 +1,39 @@
+{
+  "Commands:": "Opdrachten:",
+  "Options:": "Opties:",
+  "Examples:": "Voorbeelden:",
+  "boolean": "boolean",
+  "count": "aantal",
+  "string": "text",
+  "number": "nummer",
+  "array": "lijst",
+  "required": "verplicht",
+  "default:": "standaard:",
+  "choices:": "keuzes:",
+  "aliases:": "aliassen:",
+  "generated-value": "gegenereerde waarde",
+  "Not enough non-option arguments: got %s, need at least %s": "Niet genoeg non-optie argumenten. Gekregen: %s, minstens nodig: %s",
+  "Too many non-option arguments: got %s, maximum of %s": "Te veel non-optie argumenten. Gekregen: %s, maximum: %s",
+  "Missing argument value: %s": {
+    "one": "Missing argument value: %s",
+    "other": "Missing argument values: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "Missend verplichte argument: %s",
+    "other": "Missende verplichte argumenten: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "Onbekend argument: %s",
+    "other": "Onbekende argumenten: %s"
+  },
+  "Invalid values:": "Ongeldige waardes:",
+  "Argument: %s, Given: %s, Choices: %s": "Argument: %s, Gegeven: %s, Keuzes: %s",
+  "Argument check failed: %s": "Argument check mislukt: %s",
+  "Implications failed:": "Implicaties mislukt:",
+  "Not enough arguments following: %s": "Niet genoeg argumenten na: %s",
+  "Invalid JSON config file: %s": "Ongeldig JSON configuratiebestand: %s",
+  "Path to JSON config file": "Pad naar JSON configuratiebestand",
+  "Show help": "Toon help",
+  "Show version number": "Toon versie nummer",
+  "Did you mean %s?": "Bedoelde u misschien %s?"
+}
diff --git a/helloworld/node_modules/yargs/locales/pirate.json b/helloworld/node_modules/yargs/locales/pirate.json
new file mode 100755
index 0000000..1f4e19e
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/pirate.json
@@ -0,0 +1,12 @@
+{
+  "Commands:": "Choose yer command:",
+  "Options:": "Options for me hearties!",
+  "Examples:": "Ex. marks the spot:",
+  "required": "requi-yar-ed",
+  "Missing required argument: %s": {
+    "one": "Ye be havin' to set the followin' argument land lubber: %s",
+    "other": "Ye be havin' to set the followin' arguments land lubber: %s"
+  },
+  "Show help": "Parlay this here code of conduct",
+  "Show version number": "'Tis the version ye be askin' fer"
+}
diff --git a/helloworld/node_modules/yargs/locales/pl.json b/helloworld/node_modules/yargs/locales/pl.json
new file mode 100755
index 0000000..1c834f6
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/pl.json
@@ -0,0 +1,39 @@
+{
+  "Commands:": "Polecenia:",
+  "Options:": "Opcje:",
+  "Examples:": "Przykłady:",
+  "boolean": "boolean",
+  "count": "ilość",
+  "string": "ciąg znaków",
+  "number": "liczba",
+  "array": "tablica",
+  "required": "wymagany",
+  "default:": "domyślny:",
+  "choices:": "dostępne:",
+  "aliases:": "aliasy:",
+  "generated-value": "wygenerowana-wartość",
+  "Not enough non-option arguments: got %s, need at least %s": "Niewystarczająca ilość argumentów: otrzymano %s, wymagane co najmniej %s",
+  "Too many non-option arguments: got %s, maximum of %s": "Zbyt duża ilość argumentów: otrzymano %s, wymagane co najwyżej %s",
+  "Missing argument value: %s": {
+    "one": "Brak wartości dla argumentu: %s",
+    "other": "Brak wartości dla argumentów: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "Brak wymaganego argumentu: %s",
+    "other": "Brak wymaganych argumentów: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "Nieznany argument: %s",
+    "other": "Nieznane argumenty: %s"
+  },
+  "Invalid values:": "Nieprawidłowe wartości:",
+  "Argument: %s, Given: %s, Choices: %s": "Argument: %s, Otrzymano: %s, Dostępne: %s",
+  "Argument check failed: %s": "Weryfikacja argumentów nie powiodła się: %s",
+  "Implications failed:": "Założenia nie zostały spełnione:",
+  "Not enough arguments following: %s": "Niewystarczająca ilość argumentów następujących po: %s",
+  "Invalid JSON config file: %s": "Nieprawidłowy plik konfiguracyjny JSON: %s",
+  "Path to JSON config file": "Ścieżka do pliku konfiguracyjnego JSON",
+  "Show help": "Pokaż pomoc",
+  "Show version number": "Pokaż numer wersji",
+  "Did you mean %s?": "Czy chodziło Ci o %s?"
+}
diff --git a/helloworld/node_modules/yargs/locales/pt.json b/helloworld/node_modules/yargs/locales/pt.json
new file mode 100755
index 0000000..75c3921
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/pt.json
@@ -0,0 +1,38 @@
+{
+  "Commands:": "Comandos:",
+  "Options:": "Opções:",
+  "Examples:": "Exemplos:",
+  "boolean": "boolean",
+  "count": "contagem",
+  "string": "cadeia de caracteres",
+  "number": "número",
+  "array": "arranjo",
+  "required": "requerido",
+  "default:": "padrão:",
+  "choices:": "escolhas:",
+  "generated-value": "valor-gerado",
+  "Not enough non-option arguments: got %s, need at least %s": "Argumentos insuficientes não opcionais: Argumento %s, necessário pelo menos %s",
+  "Too many non-option arguments: got %s, maximum of %s": "Excesso de argumentos não opcionais: recebido %s, máximo de %s",
+  "Missing argument value: %s": {
+    "one": "Falta valor de argumento: %s",
+    "other": "Falta valores de argumento: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "Falta argumento obrigatório: %s",
+    "other": "Faltando argumentos obrigatórios: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "Argumento desconhecido: %s",
+    "other": "Argumentos desconhecidos: %s"
+  },
+  "Invalid values:": "Valores inválidos:",
+  "Argument: %s, Given: %s, Choices: %s": "Argumento: %s, Dado: %s, Escolhas: %s",
+  "Argument check failed: %s": "Verificação de argumento falhou: %s",
+  "Implications failed:": "Implicações falharam:",
+  "Not enough arguments following: %s": "Insuficientes argumentos a seguir: %s",
+  "Invalid JSON config file: %s": "Arquivo de configuração em JSON esta inválido: %s",
+  "Path to JSON config file": "Caminho para o arquivo de configuração em JSON",
+  "Show help": "Mostra ajuda",
+  "Show version number": "Mostra número de versão",
+  "Arguments %s and %s are mutually exclusive" : "Argumentos %s e %s são mutualmente exclusivos"
+}
diff --git a/helloworld/node_modules/yargs/locales/pt_BR.json b/helloworld/node_modules/yargs/locales/pt_BR.json
new file mode 100755
index 0000000..60e5ffa
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/pt_BR.json
@@ -0,0 +1,40 @@
+{
+  "Commands:": "Comandos:",
+  "Options:": "Opções:",
+  "Examples:": "Exemplos:",
+  "boolean": "boolean",
+  "count": "contagem",
+  "string": "string",
+  "number": "número",
+  "array": "array",
+  "required": "obrigatório",
+  "default:": "padrão:",
+  "choices:": "opções:",
+  "aliases:": "sinônimos:",
+  "generated-value": "valor-gerado",
+  "Not enough non-option arguments: got %s, need at least %s": "Argumentos insuficientes: Argumento %s, necessário pelo menos %s",
+  "Too many non-option arguments: got %s, maximum of %s": "Excesso de argumentos: recebido %s, máximo de %s",
+  "Missing argument value: %s": {
+    "one": "Falta valor de argumento: %s",
+    "other": "Falta valores de argumento: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "Falta argumento obrigatório: %s",
+    "other": "Faltando argumentos obrigatórios: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "Argumento desconhecido: %s",
+    "other": "Argumentos desconhecidos: %s"
+  },
+  "Invalid values:": "Valores inválidos:",
+  "Argument: %s, Given: %s, Choices: %s": "Argumento: %s, Dado: %s, Opções: %s",
+  "Argument check failed: %s": "Verificação de argumento falhou: %s",
+  "Implications failed:": "Implicações falharam:",
+  "Not enough arguments following: %s": "Argumentos insuficientes a seguir: %s",
+  "Invalid JSON config file: %s": "Arquivo JSON de configuração inválido: %s",
+  "Path to JSON config file": "Caminho para o arquivo JSON de configuração",
+  "Show help": "Exibe ajuda",
+  "Show version number": "Exibe a versão",
+  "Did you mean %s?": "Você quis dizer %s?",
+  "Arguments %s and %s are mutually exclusive" : "Argumentos %s e %s são mutualmente exclusivos"
+}
diff --git a/helloworld/node_modules/yargs/locales/ru.json b/helloworld/node_modules/yargs/locales/ru.json
new file mode 100755
index 0000000..cb7b88b
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/ru.json
@@ -0,0 +1,39 @@
+{
+  "Commands:": "Команды:",
+  "Options:": "Опции:",
+  "Examples:": "Примеры:",
+  "boolean": "булевый тип",
+  "count": "подсчет",
+  "string": "строковой тип",
+  "number": "число",
+  "array": "массив",
+  "required": "необходимо",
+  "default:": "по умолчанию:",
+  "choices:": "возможности:",
+  "aliases:": "алиасы:",
+  "generated-value": "генерированное значение",
+  "Not enough non-option arguments: got %s, need at least %s": "Недостаточно неопционных аргументов: есть %s, нужно как минимум %s",
+  "Too many non-option arguments: got %s, maximum of %s": "Слишком много неопционных аргументов: есть %s, максимум допустимо %s",
+  "Missing argument value: %s": {
+    "one": "Не хватает значения аргумента: %s",
+    "other": "Не хватает значений аргументов: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "Не хватает необходимого аргумента: %s",
+    "other": "Не хватает необходимых аргументов: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "Неизвестный аргумент: %s",
+    "other": "Неизвестные аргументы: %s"
+  },
+  "Invalid values:": "Недействительные значения:",
+  "Argument: %s, Given: %s, Choices: %s": "Аргумент: %s, Данное значение: %s, Возможности: %s",
+  "Argument check failed: %s": "Проверка аргументов не удалась: %s",
+  "Implications failed:": "Данный аргумент требует следующий дополнительный аргумент:",
+  "Not enough arguments following: %s": "Недостаточно следующих аргументов: %s",
+  "Invalid JSON config file: %s": "Недействительный файл конфигурации JSON: %s",
+  "Path to JSON config file": "Путь к файлу конфигурации JSON",
+  "Show help": "Показать помощь",
+  "Show version number": "Показать номер версии",
+  "Did you mean %s?": "Вы имели в виду %s?"
+}
diff --git a/helloworld/node_modules/yargs/locales/th.json b/helloworld/node_modules/yargs/locales/th.json
new file mode 100755
index 0000000..3f08dcd
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/th.json
@@ -0,0 +1,39 @@
+{
+  "Commands:": "คอมมาน",
+  "Options:": "ออฟชั่น",
+  "Examples:": "ตัวอย่าง",
+  "boolean": "บูลีน",
+  "count": "นับ",
+  "string": "สตริง",
+  "number": "ตัวเลข",
+  "array": "อาเรย์",
+  "required": "จำเป็น",
+  "default:": "ค่าเริ่มต้น",
+  "choices:": "ตัวเลือก",
+  "aliases:": "เอเลียส",
+  "generated-value": "ค่าที่ถูกสร้างขึ้น",
+  "Not enough non-option arguments: got %s, need at least %s": "ใส่อาร์กิวเมนต์ไม่ครบตามจำนวนที่กำหนด: ใส่ค่ามาจำนวน %s ค่า, แต่ต้องการอย่างน้อย %s ค่า",
+  "Too many non-option arguments: got %s, maximum of %s": "ใส่อาร์กิวเมนต์เกินจำนวนที่กำหนด: ใส่ค่ามาจำนวน %s ค่า, แต่ต้องการมากที่สุด %s ค่า",
+  "Missing argument value: %s": {
+    "one": "ค่าอาร์กิวเมนต์ที่ขาดไป: %s",
+    "other": "ค่าอาร์กิวเมนต์ที่ขาดไป: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "อาร์กิวเมนต์จำเป็นที่ขาดไป: %s",
+    "other": "อาร์กิวเมนต์จำเป็นที่ขาดไป: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "อาร์กิวเมนต์ที่ไม่รู้จัก: %s",
+    "other": "อาร์กิวเมนต์ที่ไม่รู้จัก: %s"
+  },
+  "Invalid values:": "ค่าไม่ถูกต้อง:",
+  "Argument: %s, Given: %s, Choices: %s": "อาร์กิวเมนต์: %s, ได้รับ: %s, ตัวเลือก: %s",
+  "Argument check failed: %s": "ตรวจสอบพบอาร์กิวเมนต์ที่ไม่ถูกต้อง: %s",
+  "Implications failed:": "Implications ไม่สำเร็จ:",
+  "Not enough arguments following: %s": "ใส่อาร์กิวเมนต์ไม่ครบ: %s",
+  "Invalid JSON config file: %s": "ไฟล์คอนฟิค JSON ไม่ถูกต้อง: %s",
+  "Path to JSON config file": "พาทไฟล์คอนฟิค JSON",
+  "Show help": "ขอความช่วยเหลือ",
+  "Show version number": "แสดงตัวเลขเวอร์ชั่น",
+  "Did you mean %s?": "คุณหมายถึง %s?"
+}
diff --git a/helloworld/node_modules/yargs/locales/tr.json b/helloworld/node_modules/yargs/locales/tr.json
new file mode 100755
index 0000000..000060b
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/tr.json
@@ -0,0 +1,39 @@
+{
+  "Commands:": "Komutlar:",
+  "Options:": "Seçenekler:",
+  "Examples:": "Örnekler:",
+  "boolean": "boolean",
+  "count": "sayı",
+  "string": "string",
+  "number": "numara",
+  "array": "array",
+  "required": "zorunlu",
+  "default:": "varsayılan:",
+  "choices:": "seçimler:",
+  "aliases:": "takma adlar:",
+  "generated-value": "oluşturulan-değer",
+  "Not enough non-option arguments: got %s, need at least %s": "Seçenek dışı argümanlar yetersiz: %s bulundu, %s gerekli",
+  "Too many non-option arguments: got %s, maximum of %s": "Seçenek dışı argümanlar gereğinden fazla: %s bulundu, azami %s",
+  "Missing argument value: %s": {
+    "one": "Eksik argüman değeri: %s",
+    "other": "Eksik argüman değerleri: %s"
+  },
+  "Missing required argument: %s": {
+    "one": "Eksik zorunlu argüman: %s",
+    "other": "Eksik zorunlu argümanlar: %s"
+  },
+  "Unknown argument: %s": {
+    "one": "Bilinmeyen argüman: %s",
+    "other": "Bilinmeyen argümanlar: %s"
+  },
+  "Invalid values:": "Geçersiz değerler:",
+  "Argument: %s, Given: %s, Choices: %s": "Argüman: %s, Verilen: %s, Seçimler: %s",
+  "Argument check failed: %s": "Argüman kontrolü başarısız oldu: %s",
+  "Implications failed:": "Sonuçlar başarısız oldu:",
+  "Not enough arguments following: %s": "%s için yeterli argüman bulunamadı",
+  "Invalid JSON config file: %s": "Geçersiz JSON yapılandırma dosyası: %s",
+  "Path to JSON config file": "JSON yapılandırma dosya konumu",
+  "Show help": "Yardım detaylarını göster",
+  "Show version number": "Versiyon detaylarını göster",
+  "Did you mean %s?": "Bunu mu demek istediniz: %s?"
+}
diff --git a/helloworld/node_modules/yargs/locales/zh_CN.json b/helloworld/node_modules/yargs/locales/zh_CN.json
new file mode 100755
index 0000000..b25c7b9
--- /dev/null
+++ b/helloworld/node_modules/yargs/locales/zh_CN.json
@@ -0,0 +1,37 @@
+{
+  "Commands:": "命令：",
+  "Options:": "选项：",
+  "Examples:": "示例：",
+  "boolean": "布尔",
+  "count": "计数",
+  "string": "字符串",
+  "number": "数字",
+  "array": "数组",
+  "required": "必需",
+  "default:": "默认值:",
+  "choices:": "可选值:",
+  "generated-value": "生成的值",
+  "Not enough non-option arguments: got %s, need at least %s": "缺少 non-option 参数：传入了 %s 个, 至少需要 %s 个",
+  "Too many non-option arguments: got %s, maximum of %s": "non-option 参数过多：传入了 %s 个, 最大允许 %s 个",
+  "Missing argument value: %s": {
+    "one": "没有给此选项指定值：%s",
+    "other": "没有给这些选项指定值：%s"
+  },
+  "Missing required argument: %s": {
+    "one": "缺少必须的选项：%s",
+    "other": "缺少这些必须的选项：%s"
+  },
+  "Unknown argument: %s": {
+    "one": "无法识别的选项：%s",
+    "other": "无法识别这些选项：%s"
+  },
+  "Invalid values:": "无效的选项值：",
+  "Argument: %s, Given: %s, Choices: %s": "选项名称: %s, 传入的值: %s, 可选的值：%s",
+  "Argument check failed: %s": "选项值验证失败：%s",
+  "Implications failed:": "缺少依赖的选项：",
+  "Not enough arguments following: %s": "没有提供足够的值给此选项：%s",
+  "Invalid JSON config file: %s": "无效的 JSON 配置文件：%s",
+  "Path to JSON config file": "JSON 配置文件的路径",
+  "Show help": "显示帮助信息",
+  "Show version number": "显示版本号"
+}
diff --git a/helloworld/node_modules/yargs/yargs.js b/helloworld/node_modules/yargs/yargs.js
new file mode 100755
index 0000000..a63c94a
--- /dev/null
+++ b/helloworld/node_modules/yargs/yargs.js
@@ -0,0 +1,1037 @@
+const assign = require('./lib/assign')
+const Command = require('./lib/command')
+const Completion = require('./lib/completion')
+const Parser = require('yargs-parser')
+const path = require('path')
+const Usage = require('./lib/usage')
+const Validation = require('./lib/validation')
+const Y18n = require('y18n')
+const objFilter = require('./lib/obj-filter')
+const setBlocking = require('set-blocking')
+
+var exports = module.exports = Yargs
+function Yargs (processArgs, cwd, parentRequire) {
+  processArgs = processArgs || [] // handle calling yargs().
+
+  const self = {}
+  var command = null
+  var completion = null
+  var groups = {}
+  var output = ''
+  var preservedGroups = {}
+  var usage = null
+  var validation = null
+
+  const y18n = Y18n({
+    directory: path.resolve(__dirname, './locales'),
+    updateFiles: false
+  })
+
+  if (!cwd) cwd = process.cwd()
+
+  self.$0 = process.argv
+    .slice(0, 2)
+    .map(function (x, i) {
+      // ignore the node bin, specify this in your
+      // bin file with #!/usr/bin/env node
+      if (i === 0 && /\b(node|iojs)(\.exe)?$/.test(x)) return
+      var b = rebase(cwd, x)
+      return x.match(/^(\/|([a-zA-Z]:)?\\)/) && b.length < x.length ? b : x
+    })
+    .join(' ').trim()
+
+  if (process.env._ !== undefined && process.argv[1] === process.env._) {
+    self.$0 = process.env._.replace(
+      path.dirname(process.execPath) + '/', ''
+    )
+  }
+
+  // use context object to keep track of resets, subcommand execution, etc
+  // submodules should modify and check the state of context as necessary
+  const context = { resets: -1, commands: [], files: [] }
+  self.getContext = function () {
+    return context
+  }
+
+  // puts yargs back into an initial state. any keys
+  // that have been set to "global" will not be reset
+  // by this action.
+  var options
+  self.resetOptions = self.reset = function (aliases) {
+    context.resets++
+    aliases = aliases || {}
+    options = options || {}
+    // put yargs back into an initial state, this
+    // logic is used to build a nested command
+    // hierarchy.
+    var tmpOptions = {}
+    tmpOptions.global = options.global ? options.global : []
+    tmpOptions.configObjects = options.configObjects ? options.configObjects : []
+
+    // if a key has been set as a global, we
+    // do not want to reset it or its aliases.
+    var globalLookup = {}
+    tmpOptions.global.forEach(function (g) {
+      globalLookup[g] = true
+      ;(aliases[g] || []).forEach(function (a) {
+        globalLookup[a] = true
+      })
+    })
+
+    // preserve groups containing global keys
+    preservedGroups = Object.keys(groups).reduce(function (acc, groupName) {
+      var keys = groups[groupName].filter(function (key) {
+        return key in globalLookup
+      })
+      if (keys.length > 0) {
+        acc[groupName] = keys
+      }
+      return acc
+    }, {})
+    // groups can now be reset
+    groups = {}
+
+    var arrayOptions = [
+      'array', 'boolean', 'string', 'requiresArg', 'skipValidation',
+      'count', 'normalize', 'number'
+    ]
+
+    var objectOptions = [
+      'narg', 'key', 'alias', 'default', 'defaultDescription',
+      'config', 'choices', 'demandedOptions', 'demandedCommands', 'coerce'
+    ]
+
+    arrayOptions.forEach(function (k) {
+      tmpOptions[k] = (options[k] || []).filter(function (k) {
+        return globalLookup[k]
+      })
+    })
+
+    objectOptions.forEach(function (k) {
+      tmpOptions[k] = objFilter(options[k], function (k, v) {
+        return globalLookup[k]
+      })
+    })
+
+    tmpOptions.envPrefix = options.envPrefix
+    options = tmpOptions
+
+    // if this is the first time being executed, create
+    // instances of all our helpers -- otherwise just reset.
+    usage = usage ? usage.reset(globalLookup) : Usage(self, y18n)
+    validation = validation ? validation.reset(globalLookup) : Validation(self, usage, y18n)
+    command = command ? command.reset() : Command(self, usage, validation)
+    if (!completion) completion = Completion(self, usage, command)
+
+    strict = false
+    completionCommand = null
+    output = ''
+    exitError = null
+    hasOutput = false
+    self.parsed = false
+
+    return self
+  }
+  self.resetOptions()
+
+  // temporary hack: allow "freezing" of reset-able state for parse(msg, cb)
+  var frozen
+  function freeze () {
+    frozen = {}
+    frozen.options = options
+    frozen.configObjects = options.configObjects.slice(0)
+    frozen.exitProcess = exitProcess
+    frozen.groups = groups
+    usage.freeze()
+    validation.freeze()
+    command.freeze()
+    frozen.strict = strict
+    frozen.completionCommand = completionCommand
+    frozen.output = output
+    frozen.exitError = exitError
+    frozen.hasOutput = hasOutput
+    frozen.parsed = self.parsed
+  }
+  function unfreeze () {
+    options = frozen.options
+    options.configObjects = frozen.configObjects
+    exitProcess = frozen.exitProcess
+    groups = frozen.groups
+    output = frozen.output
+    exitError = frozen.exitError
+    hasOutput = frozen.hasOutput
+    self.parsed = frozen.parsed
+    usage.unfreeze()
+    validation.unfreeze()
+    command.unfreeze()
+    strict = frozen.strict
+    completionCommand = frozen.completionCommand
+    parseFn = null
+    parseContext = null
+    frozen = undefined
+  }
+
+  self.boolean = function (bools) {
+    options.boolean.push.apply(options.boolean, [].concat(bools))
+    return self
+  }
+
+  self.array = function (arrays) {
+    options.array.push.apply(options.array, [].concat(arrays))
+    return self
+  }
+
+  self.nargs = function (key, n) {
+    if (typeof key === 'object') {
+      Object.keys(key).forEach(function (k) {
+        self.nargs(k, key[k])
+      })
+    } else {
+      options.narg[key] = n
+    }
+    return self
+  }
+
+  self.number = function (numbers) {
+    options.number.push.apply(options.number, [].concat(numbers))
+    return self
+  }
+
+  self.choices = function (key, values) {
+    if (typeof key === 'object') {
+      Object.keys(key).forEach(function (k) {
+        self.choices(k, key[k])
+      })
+    } else {
+      options.choices[key] = (options.choices[key] || []).concat(values)
+    }
+    return self
+  }
+
+  self.normalize = function (strings) {
+    options.normalize.push.apply(options.normalize, [].concat(strings))
+    return self
+  }
+
+  self.config = function (key, msg, parseFn) {
+    // allow to pass a configuration object
+    if (typeof key === 'object') {
+      options.configObjects = (options.configObjects || []).concat(key)
+      return self
+    }
+
+    // allow to provide a parsing function
+    if (typeof msg === 'function') {
+      parseFn = msg
+      msg = null
+    }
+
+    key = key || 'config'
+    self.describe(key, msg || usage.deferY18nLookup('Path to JSON config file'))
+    ;(Array.isArray(key) ? key : [key]).forEach(function (k) {
+      options.config[k] = parseFn || true
+    })
+    return self
+  }
+
+  self.example = function (cmd, description) {
+    usage.example(cmd, description)
+    return self
+  }
+
+  self.command = function (cmd, description, builder, handler) {
+    command.addHandler(cmd, description, builder, handler)
+    return self
+  }
+
+  self.commandDir = function (dir, opts) {
+    const req = parentRequire || require
+    command.addDirectory(dir, self.getContext(), req, require('get-caller-file')(), opts)
+    return self
+  }
+
+  self.string = function (strings) {
+    options.string.push.apply(options.string, [].concat(strings))
+    return self
+  }
+
+  // The 'defaults' alias is deprecated. It will be removed in the next major version.
+  self.default = self.defaults = function (key, value, defaultDescription) {
+    if (typeof key === 'object') {
+      Object.keys(key).forEach(function (k) {
+        self.default(k, key[k])
+      })
+    } else {
+      if (defaultDescription) options.defaultDescription[key] = defaultDescription
+      if (typeof value === 'function') {
+        if (!options.defaultDescription[key]) options.defaultDescription[key] = usage.functionDescription(value)
+        value = value.call()
+      }
+      options.default[key] = value
+    }
+    return self
+  }
+
+  self.alias = function (x, y) {
+    if (typeof x === 'object') {
+      Object.keys(x).forEach(function (key) {
+        self.alias(key, x[key])
+      })
+    } else {
+      options.alias[x] = (options.alias[x] || []).concat(y)
+    }
+    return self
+  }
+
+  self.coerce = function (key, fn) {
+    if (typeof key === 'object' && !Array.isArray(key)) {
+      Object.keys(key).forEach(function (k) {
+        self.coerce(k, key[k])
+      })
+    } else {
+      [].concat(key).forEach(function (k) {
+        options.coerce[k] = fn
+      })
+    }
+    return self
+  }
+
+  self.count = function (counts) {
+    options.count.push.apply(options.count, [].concat(counts))
+    return self
+  }
+
+  // deprecated: the demand API is too overloaded, and is being
+  // deprecated in favor of .demandCommand() .demandOption().
+  self.demand = self.required = self.require = function (keys, max, msg) {
+    // you can optionally provide a 'max' key,
+    // which will raise an exception if too many '_'
+    // options are provided.
+    if (Array.isArray(max)) {
+      max.forEach(function (key) {
+        self.demandOption(key, msg)
+      })
+      max = Infinity
+    } else if (typeof max !== 'number') {
+      msg = max
+      max = Infinity
+    }
+
+    if (typeof keys === 'number') {
+      self.demandCommand(keys, max, msg)
+    } else if (Array.isArray(keys)) {
+      keys.forEach(function (key) {
+        self.demandOption(key, msg)
+      })
+    } else {
+      if (typeof msg === 'string') {
+        self.demandOption(keys, msg)
+      } else if (msg === true || typeof msg === 'undefined') {
+        self.demandOption(keys)
+      }
+    }
+
+    return self
+  }
+
+  self.demandOption = function (key, msg) {
+    if (Array.isArray(key)) {
+      key.forEach(function (key) {
+        self.demandOption(key, msg)
+      })
+    } else {
+      if (typeof msg === 'string') {
+        options.demandedOptions[key] = { msg: msg }
+      // allow edge-case of options: {a: {demand: true}, b: {demand: false}}
+      } else if (msg === true || typeof msg === 'undefined') {
+        options.demandedOptions[key] = { msg: undefined }
+      }
+    }
+
+    return self
+  }
+
+  self.demandCommand = function (min, max, minMsg, maxMsg) {
+    if (typeof max !== 'number') {
+      minMsg = max
+      max = Infinity
+    }
+
+    options.demandedCommands._ = {
+      min: min,
+      max: max,
+      minMsg: minMsg,
+      maxMsg: maxMsg
+    }
+
+    return self
+  }
+
+  self.getDemandedOptions = function () {
+    return options.demandedOptions
+  }
+
+  self.getDemandedCommands = function () {
+    return options.demandedCommands
+  }
+
+  self.requiresArg = function (requiresArgs) {
+    options.requiresArg.push.apply(options.requiresArg, [].concat(requiresArgs))
+    return self
+  }
+
+  self.skipValidation = function (skipValidations) {
+    options.skipValidation.push.apply(options.skipValidation, [].concat(skipValidations))
+    return self
+  }
+
+  self.implies = function (key, value) {
+    validation.implies(key, value)
+    return self
+  }
+
+  self.conflicts = function (key1, key2) {
+    validation.conflicts(key1, key2)
+    return self
+  }
+
+  self.usage = function (msg, opts) {
+    if (!opts && typeof msg === 'object') {
+      opts = msg
+      msg = null
+    }
+
+    usage.usage(msg)
+
+    if (opts) self.options(opts)
+
+    return self
+  }
+
+  self.epilogue = self.epilog = function (msg) {
+    usage.epilog(msg)
+    return self
+  }
+
+  self.fail = function (f) {
+    usage.failFn(f)
+    return self
+  }
+
+  self.check = function (f) {
+    validation.check(f)
+    return self
+  }
+
+  self.describe = function (key, desc) {
+    if (typeof key === 'object') {
+      Object.keys(key).forEach(function (k) {
+        options.key[k] = true
+      })
+    } else {
+      options.key[key] = true
+    }
+    usage.describe(key, desc)
+    return self
+  }
+
+  self.global = function (globals) {
+    options.global.push.apply(options.global, [].concat(globals))
+    return self
+  }
+
+  self.pkgConf = function (key, path) {
+    var conf = null
+
+    var obj = pkgUp(path)
+
+    // If an object exists in the key, add it to options.configObjects
+    if (obj[key] && typeof obj[key] === 'object') {
+      conf = obj[key]
+      options.configObjects = (options.configObjects || []).concat(conf)
+    }
+
+    return self
+  }
+
+  var pkgs = {}
+  function pkgUp (path) {
+    var npath = path || '*'
+    if (pkgs[npath]) return pkgs[npath]
+    const readPkgUp = require('read-pkg-up')
+
+    var obj = {}
+    try {
+      obj = readPkgUp.sync({
+        cwd: path || require('require-main-filename')(parentRequire || require),
+        normalize: false
+      })
+    } catch (noop) {}
+
+    pkgs[npath] = obj.pkg || {}
+    return pkgs[npath]
+  }
+
+  var parseFn = null
+  var parseContext = null
+  self.parse = function (args, shortCircuit, _parseFn) {
+    // a context object can optionally be provided, this allows
+    // additional information to be passed to a command handler.
+    if (typeof shortCircuit === 'object') {
+      parseContext = shortCircuit
+      shortCircuit = _parseFn
+    }
+
+    // by providing a function as a second argument to
+    // parse you can capture output that would otherwise
+    // default to printing to stdout/stderr.
+    if (typeof shortCircuit === 'function') {
+      parseFn = shortCircuit
+      shortCircuit = null
+    }
+    // completion short-circuits the parsing process,
+    // skipping validation, etc.
+    if (!shortCircuit) processArgs = args
+
+    freeze()
+    if (parseFn) exitProcess = false
+
+    var parsed = parseArgs(args, shortCircuit)
+    if (parseFn) parseFn(exitError, parsed, output)
+    unfreeze()
+
+    return parsed
+  }
+
+  self._hasParseCallback = function () {
+    return !!parseFn
+  }
+
+  self.option = self.options = function (key, opt) {
+    if (typeof key === 'object') {
+      Object.keys(key).forEach(function (k) {
+        self.options(k, key[k])
+      })
+    } else {
+      if (typeof opt !== 'object') {
+        opt = {}
+      }
+
+      options.key[key] = true // track manually set keys.
+
+      if (opt.alias) self.alias(key, opt.alias)
+
+      var demand = opt.demand || opt.required || opt.require
+
+      if (demand) {
+        self.demand(key, demand)
+      }
+
+      if ('demandOption' in opt) {
+        self.demandOption(key, opt.demandOption)
+      }
+
+      if ('config' in opt) {
+        self.config(key, opt.configParser)
+      }
+
+      if ('default' in opt) {
+        self.default(key, opt.default)
+      }
+
+      if ('nargs' in opt) {
+        self.nargs(key, opt.nargs)
+      }
+
+      if ('normalize' in opt) {
+        self.normalize(key)
+      }
+
+      if ('choices' in opt) {
+        self.choices(key, opt.choices)
+      }
+
+      if ('coerce' in opt) {
+        self.coerce(key, opt.coerce)
+      }
+
+      if ('group' in opt) {
+        self.group(key, opt.group)
+      }
+
+      if (opt.global) {
+        self.global(key)
+      }
+
+      if (opt.boolean || opt.type === 'boolean') {
+        self.boolean(key)
+        if (opt.alias) self.boolean(opt.alias)
+      }
+
+      if (opt.array || opt.type === 'array') {
+        self.array(key)
+        if (opt.alias) self.array(opt.alias)
+      }
+
+      if (opt.number || opt.type === 'number') {
+        self.number(key)
+        if (opt.alias) self.number(opt.alias)
+      }
+
+      if (opt.string || opt.type === 'string') {
+        self.string(key)
+        if (opt.alias) self.string(opt.alias)
+      }
+
+      if (opt.count || opt.type === 'count') {
+        self.count(key)
+      }
+
+      if (opt.defaultDescription) {
+        options.defaultDescription[key] = opt.defaultDescription
+      }
+
+      if (opt.skipValidation) {
+        self.skipValidation(key)
+      }
+
+      var desc = opt.describe || opt.description || opt.desc
+      if (desc) {
+        self.describe(key, desc)
+      }
+
+      if (opt.requiresArg) {
+        self.requiresArg(key)
+      }
+    }
+
+    return self
+  }
+  self.getOptions = function () {
+    return options
+  }
+
+  self.group = function (opts, groupName) {
+    var existing = preservedGroups[groupName] || groups[groupName]
+    if (preservedGroups[groupName]) {
+      // the preserved group will be moved to the set of explicitly declared
+      // groups
+      delete preservedGroups[groupName]
+    }
+
+    var seen = {}
+    groups[groupName] = (existing || []).concat(opts).filter(function (key) {
+      if (seen[key]) return false
+      return (seen[key] = true)
+    })
+    return self
+  }
+  self.getGroups = function () {
+    // combine explicit and preserved groups. explicit groups should be first
+    return assign(groups, preservedGroups)
+  }
+
+  // as long as options.envPrefix is not undefined,
+  // parser will apply env vars matching prefix to argv
+  self.env = function (prefix) {
+    if (prefix === false) options.envPrefix = undefined
+    else options.envPrefix = prefix || ''
+    return self
+  }
+
+  self.wrap = function (cols) {
+    usage.wrap(cols)
+    return self
+  }
+
+  var strict = false
+  self.strict = function () {
+    strict = true
+    return self
+  }
+  self.getStrict = function () {
+    return strict
+  }
+
+  self.showHelp = function (level) {
+    if (!self.parsed) parseArgs(processArgs) // run parser, if it has not already been executed.
+    usage.showHelp(level)
+    return self
+  }
+
+  var versionOpt = null
+  self.version = function (opt, msg, ver) {
+    if (arguments.length === 0) {
+      ver = guessVersion()
+      opt = 'version'
+    } else if (arguments.length === 1) {
+      ver = opt
+      opt = 'version'
+    } else if (arguments.length === 2) {
+      ver = msg
+    }
+
+    versionOpt = opt
+    msg = msg || usage.deferY18nLookup('Show version number')
+
+    usage.version(ver || undefined)
+    self.boolean(versionOpt)
+    self.global(versionOpt)
+    self.describe(versionOpt, msg)
+    return self
+  }
+
+  function guessVersion () {
+    var obj = pkgUp()
+
+    return obj.version || 'unknown'
+  }
+
+  var helpOpt = null
+  var useHelpOptAsCommand = false // a call to .help() will enable this
+  self.addHelpOpt = self.help = function (opt, msg, addImplicitCmd) {
+    // argument shuffle
+    if (arguments.length === 0) {
+      useHelpOptAsCommand = true
+    } else if (arguments.length === 1) {
+      if (typeof opt === 'boolean') {
+        useHelpOptAsCommand = opt
+        opt = null
+      } else {
+        useHelpOptAsCommand = true
+      }
+    } else if (arguments.length === 2) {
+      if (typeof msg === 'boolean') {
+        useHelpOptAsCommand = msg
+        msg = null
+      } else {
+        useHelpOptAsCommand = true
+      }
+    } else {
+      useHelpOptAsCommand = Boolean(addImplicitCmd)
+    }
+    // use arguments, fallback to defaults for opt and msg
+    helpOpt = opt || 'help'
+    self.boolean(helpOpt)
+    self.global(helpOpt)
+    self.describe(helpOpt, msg || usage.deferY18nLookup('Show help'))
+    return self
+  }
+
+  self.showHelpOnFail = function (enabled, message) {
+    usage.showHelpOnFail(enabled, message)
+    return self
+  }
+
+  var exitProcess = true
+  self.exitProcess = function (enabled) {
+    if (typeof enabled !== 'boolean') {
+      enabled = true
+    }
+    exitProcess = enabled
+    return self
+  }
+  self.getExitProcess = function () {
+    return exitProcess
+  }
+
+  var completionCommand = null
+  self.completion = function (cmd, desc, fn) {
+    // a function to execute when generating
+    // completions can be provided as the second
+    // or third argument to completion.
+    if (typeof desc === 'function') {
+      fn = desc
+      desc = null
+    }
+
+    // register the completion command.
+    completionCommand = cmd || 'completion'
+    if (!desc && desc !== false) {
+      desc = 'generate bash completion script'
+    }
+    self.command(completionCommand, desc)
+
+    // a function can be provided
+    if (fn) completion.registerFunction(fn)
+
+    return self
+  }
+
+  self.showCompletionScript = function ($0) {
+    $0 = $0 || self.$0
+    _logger.log(completion.generateCompletionScript($0))
+    return self
+  }
+
+  self.getCompletion = function (args, done) {
+    completion.getCompletion(args, done)
+  }
+
+  self.locale = function (locale) {
+    if (arguments.length === 0) {
+      guessLocale()
+      return y18n.getLocale()
+    }
+    detectLocale = false
+    y18n.setLocale(locale)
+    return self
+  }
+
+  self.updateStrings = self.updateLocale = function (obj) {
+    detectLocale = false
+    y18n.updateLocale(obj)
+    return self
+  }
+
+  var detectLocale = true
+  self.detectLocale = function (detect) {
+    detectLocale = detect
+    return self
+  }
+  self.getDetectLocale = function () {
+    return detectLocale
+  }
+
+  var hasOutput = false
+  var exitError = null
+  // maybe exit, always capture
+  // context about why we wanted to exit.
+  self.exit = function (code, err) {
+    hasOutput = true
+    exitError = err
+    if (exitProcess) process.exit(code)
+  }
+
+  // we use a custom logger that buffers output,
+  // so that we can print to non-CLIs, e.g., chat-bots.
+  var _logger = {
+    log: function () {
+      var args = Array.prototype.slice.call(arguments)
+      if (!self._hasParseCallback()) console.log.apply(console, args)
+      hasOutput = true
+      if (output.length) output += '\n'
+      output += args.join(' ')
+    },
+    error: function () {
+      var args = Array.prototype.slice.call(arguments)
+      if (!self._hasParseCallback()) console.error.apply(console, args)
+      hasOutput = true
+      if (output.length) output += '\n'
+      output += args.join(' ')
+    }
+  }
+  self._getLoggerInstance = function () {
+    return _logger
+  }
+  // has yargs output an error our help
+  // message in the current execution context.
+  self._hasOutput = function () {
+    return hasOutput
+  }
+
+  var recommendCommands
+  self.recommendCommands = function () {
+    recommendCommands = true
+    return self
+  }
+
+  self.getUsageInstance = function () {
+    return usage
+  }
+
+  self.getValidationInstance = function () {
+    return validation
+  }
+
+  self.getCommandInstance = function () {
+    return command
+  }
+
+  self.terminalWidth = function () {
+    return process.stdout.columns
+  }
+
+  Object.defineProperty(self, 'argv', {
+    get: function () {
+      var args = null
+
+      try {
+        args = parseArgs(processArgs)
+      } catch (err) {
+        usage.fail(err.message, err)
+      }
+
+      return args
+    },
+    enumerable: true
+  })
+
+  function parseArgs (args, shortCircuit) {
+    options.__ = y18n.__
+    options.configuration = pkgUp()['yargs'] || {}
+    const parsed = Parser.detailed(args, options)
+    var argv = parsed.argv
+    if (parseContext) argv = assign(parseContext, argv)
+    var aliases = parsed.aliases
+
+    argv.$0 = self.$0
+    self.parsed = parsed
+
+    guessLocale() // guess locale lazily, so that it can be turned off in chain.
+
+    // while building up the argv object, there
+    // are two passes through the parser. If completion
+    // is being performed short-circuit on the first pass.
+    if (shortCircuit) {
+      return argv
+    }
+
+    if (argv._.length) {
+      // check for helpOpt in argv._ before running commands
+      // assumes helpOpt must be valid if useHelpOptAsCommand is true
+      if (useHelpOptAsCommand) {
+        // consider any multi-char helpOpt alias as a valid help command
+        // unless all helpOpt aliases are single-char
+        // note that parsed.aliases is a normalized bidirectional map :)
+        var helpCmds = [helpOpt].concat(aliases[helpOpt])
+        var multiCharHelpCmds = helpCmds.filter(function (k) {
+          return k.length > 1
+        })
+        if (multiCharHelpCmds.length) helpCmds = multiCharHelpCmds
+        // look for and strip any helpCmds from argv._
+        argv._ = argv._.filter(function (cmd) {
+          if (~helpCmds.indexOf(cmd)) {
+            argv[helpOpt] = true
+            return false
+          }
+          return true
+        })
+      }
+
+      // if there's a handler associated with a
+      // command defer processing to it.
+      var handlerKeys = command.getCommands()
+      if (handlerKeys.length) {
+        var firstUnknownCommand
+        for (var i = 0, cmd; (cmd = argv._[i]) !== undefined; i++) {
+          if (~handlerKeys.indexOf(cmd) && cmd !== completionCommand) {
+            setPlaceholderKeys(argv)
+            return command.runCommand(cmd, self, parsed)
+          } else if (!firstUnknownCommand && cmd !== completionCommand) {
+            firstUnknownCommand = cmd
+          }
+        }
+
+        // recommend a command if recommendCommands() has
+        // been enabled, and no commands were found to execute
+        if (recommendCommands && firstUnknownCommand) {
+          validation.recommendCommands(firstUnknownCommand, handlerKeys)
+        }
+      }
+
+      // generate a completion script for adding to ~/.bashrc.
+      if (completionCommand && ~argv._.indexOf(completionCommand) && !argv[completion.completionKey]) {
+        if (exitProcess) setBlocking(true)
+        self.showCompletionScript()
+        self.exit(0)
+      }
+    }
+
+    // we must run completions first, a user might
+    // want to complete the --help or --version option.
+    if (completion.completionKey in argv) {
+      if (exitProcess) setBlocking(true)
+
+      // we allow for asynchronous completions,
+      // e.g., loading in a list of commands from an API.
+      var completionArgs = args.slice(args.indexOf('--' + completion.completionKey) + 1)
+      completion.getCompletion(completionArgs, function (completions) {
+        ;(completions || []).forEach(function (completion) {
+          _logger.log(completion)
+        })
+
+        self.exit(0)
+      })
+      return setPlaceholderKeys(argv)
+    }
+
+    var skipValidation = false
+
+    // Handle 'help' and 'version' options
+    Object.keys(argv).forEach(function (key) {
+      if (key === helpOpt && argv[key]) {
+        if (exitProcess) setBlocking(true)
+
+        skipValidation = true
+        self.showHelp('log')
+        self.exit(0)
+      } else if (key === versionOpt && argv[key]) {
+        if (exitProcess) setBlocking(true)
+
+        skipValidation = true
+        usage.showVersion()
+        self.exit(0)
+      }
+    })
+
+    // Check if any of the options to skip validation were provided
+    if (!skipValidation && options.skipValidation.length > 0) {
+      skipValidation = Object.keys(argv).some(function (key) {
+        return options.skipValidation.indexOf(key) >= 0 && argv[key] === true
+      })
+    }
+
+    // If the help or version options where used and exitProcess is false,
+    // or if explicitly skipped, we won't run validations
+    if (!skipValidation) {
+      if (parsed.error) throw parsed.error
+
+      // if we're executed via bash completion, don't
+      // bother with validation.
+      if (!argv[completion.completionKey]) {
+        validation.nonOptionCount(argv)
+        validation.missingArgumentValue(argv)
+        validation.requiredArguments(argv)
+        if (strict) validation.unknownArguments(argv, aliases)
+        validation.customChecks(argv, aliases)
+        validation.limitedChoices(argv)
+        validation.implications(argv)
+        validation.conflicting(argv)
+      }
+    }
+
+    return setPlaceholderKeys(argv)
+  }
+
+  function guessLocale () {
+    if (!detectLocale) return
+
+    try {
+      const osLocale = require('os-locale')
+      self.locale(osLocale.sync({ spawn: false }))
+    } catch (err) {
+      // if we explode looking up locale just noop
+      // we'll keep using the default language 'en'.
+    }
+  }
+
+  function setPlaceholderKeys (argv) {
+    Object.keys(options.key).forEach(function (key) {
+      // don't set placeholder keys for dot
+      // notation options 'foo.bar'.
+      if (~key.indexOf('.')) return
+      if (typeof argv[key] === 'undefined') argv[key] = undefined
+    })
+    return argv
+  }
+
+  return self
+}
+
+// rebase an absolute path to a relative one with respect to a base directory
+// exported for tests
+exports.rebase = rebase
+function rebase (base, dir) {
+  return path.relative(base, dir)
+}
diff --git a/helloworld/node_modules/yeast/LICENSE b/helloworld/node_modules/yeast/LICENSE
new file mode 100755
index 0000000..6dc9316
--- /dev/null
+++ b/helloworld/node_modules/yeast/LICENSE
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Unshift.io, Arnout Kazemier,  the Contributors.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
diff --git a/helloworld/node_modules/yeast/README.md b/helloworld/node_modules/yeast/README.md
new file mode 100755
index 0000000..0b0af0d
--- /dev/null
+++ b/helloworld/node_modules/yeast/README.md
@@ -0,0 +1,82 @@
+# yeast
+
+[![Made by unshift](https://img.shields.io/badge/made%20by-unshift-00ffcc.svg?style=flat-square)](http://unshift.io)[![Version npm](https://img.shields.io/npm/v/yeast.svg?style=flat-square)](http://browsenpm.org/package/yeast)[![Build Status](https://img.shields.io/travis/unshiftio/yeast/master.svg?style=flat-square)](https://travis-ci.org/unshiftio/yeast)[![Dependencies](https://img.shields.io/david/unshiftio/yeast.svg?style=flat-square)](https://david-dm.org/unshiftio/yeast)[![Coverage Status](https://img.shields.io/coveralls/unshiftio/yeast/master.svg?style=flat-square)](https://coveralls.io/r/unshiftio/yeast?branch=master)[![IRC channel](https://img.shields.io/badge/IRC-irc.freenode.net%23unshift-00a8ff.svg?style=flat-square)](https://webchat.freenode.net/?channels=unshift)
+
+[![Sauce Test Status](https://saucelabs.com/browser-matrix/yeast.svg)](https://saucelabs.com/u/yeast)
+
+Yeast is a unique id generator. It has been primarily designed to generate a
+unique id which can be used for cache busting. A common practice for this is
+to use a timestamp, but there are couple of downsides when using timestamps.
+
+1. The timestamp is already 13 chars long. This might not matter for 1 request
+   but if you make hundreds of them this quickly adds up in bandwidth and
+   processing time.
+2. It's not unique enough. If you generate two stamps right after each other,
+   they would be identical because the timing accuracy is limited to
+   milliseconds.
+
+Yeast solves both of these issues by:
+
+1. Compressing the generated timestamp using a custom `encode()` function that
+   returns a string representation of the number.
+2. Seeding the id in case of collision (when the id is identical to the previous
+   one).
+
+To keep the strings unique it will use the `.` char to separate the generated
+stamp from the seed.
+
+## Installation
+
+The module is intended to be used in browsers as well as in Node.js and is
+therefore released in the npm registry and can be installed using:
+
+```
+npm install --save yeast
+```
+
+## Usage
+
+All the examples assume that this library is initialized as follow:
+
+```js
+'use strict';
+
+var yeast = require('yeast');
+```
+
+To generate an id just call the `yeast` function.
+
+```js
+console.log(yeast(), yeast(), yeast()); // outputs: KyxidwN KyxidwN.0 KyxidwN.1
+
+setTimeout(function () {
+  console.log(yeast()); // outputs: KyxidwO
+});
+```
+
+### yeast.encode(num)
+
+An helper function that returns a string representing the specified number. The
+returned string contains only URL safe characters.
+
+```js
+yeast.encode(+new Date()); // outputs: Kyxjuo1
+```
+
+### yeast.decode(str)
+
+An helper function that returns the integer value specified by the given string.
+This function can be used to retrieve the timestamp from a `yeast` id.
+
+```js
+var id = yeast(); // holds the value: Kyxl1OU
+
+yeast.decode(id); // outputs: 1439816226334
+```
+
+That's all folks. If you have ideas on how we can further compress the ids
+please open an issue!
+
+## License
+
+[MIT](LICENSE)
diff --git a/helloworld/node_modules/yeast/index.js b/helloworld/node_modules/yeast/index.js
new file mode 100755
index 0000000..7299762
--- /dev/null
+++ b/helloworld/node_modules/yeast/index.js
@@ -0,0 +1,68 @@
+'use strict';
+
+var alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('')
+  , length = 64
+  , map = {}
+  , seed = 0
+  , i = 0
+  , prev;
+
+/**
+ * Return a string representing the specified number.
+ *
+ * @param {Number} num The number to convert.
+ * @returns {String} The string representation of the number.
+ * @api public
+ */
+function encode(num) {
+  var encoded = '';
+
+  do {
+    encoded = alphabet[num % length] + encoded;
+    num = Math.floor(num / length);
+  } while (num > 0);
+
+  return encoded;
+}
+
+/**
+ * Return the integer value specified by the given string.
+ *
+ * @param {String} str The string to convert.
+ * @returns {Number} The integer value represented by the string.
+ * @api public
+ */
+function decode(str) {
+  var decoded = 0;
+
+  for (i = 0; i < str.length; i++) {
+    decoded = decoded * length + map[str.charAt(i)];
+  }
+
+  return decoded;
+}
+
+/**
+ * Yeast: A tiny growing id generator.
+ *
+ * @returns {String} A unique id.
+ * @api public
+ */
+function yeast() {
+  var now = encode(+new Date());
+
+  if (now !== prev) return seed = 0, prev = now;
+  return now +'.'+ encode(seed++);
+}
+
+//
+// Map each character to its index.
+//
+for (; i < length; i++) map[alphabet[i]] = i;
+
+//
+// Expose the `yeast`, `encode` and `decode` functions.
+//
+yeast.encode = encode;
+yeast.decode = decode;
+module.exports = yeast;
diff --git a/helloworld/node_modules/yeast/package.json b/helloworld/node_modules/yeast/package.json
new file mode 100755
index 0000000..d2c775f
--- /dev/null
+++ b/helloworld/node_modules/yeast/package.json
@@ -0,0 +1,64 @@
+{
+  "_from": "yeast@0.1.2",
+  "_id": "yeast@0.1.2",
+  "_inBundle": false,
+  "_integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk=",
+  "_location": "/yeast",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "yeast@0.1.2",
+    "name": "yeast",
+    "escapedName": "yeast",
+    "rawSpec": "0.1.2",
+    "saveSpec": null,
+    "fetchSpec": "0.1.2"
+  },
+  "_requiredBy": [
+    "/engine.io-client"
+  ],
+  "_resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
+  "_shasum": "008e06d8094320c372dbc2f8ed76a0ca6c8ac419",
+  "_spec": "yeast@0.1.2",
+  "_where": "/home/devesh/Desktop/pavanSinghal/node_modules/engine.io-client",
+  "author": {
+    "name": "Arnout Kazemier"
+  },
+  "bugs": {
+    "url": "https://github.com/unshiftio/yeast/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "Tiny but linear growing unique id generator",
+  "devDependencies": {
+    "assume": "1.3.x",
+    "istanbul": "0.3.x",
+    "mocha": "2.3.x",
+    "pre-commit": "1.1.x",
+    "zuul": "3.4.x"
+  },
+  "homepage": "https://github.com/unshiftio/yeast",
+  "keywords": [
+    "yeast",
+    "id",
+    "generator",
+    "unique"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "name": "yeast",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/unshiftio/yeast.git"
+  },
+  "scripts": {
+    "100%": "istanbul check-coverage --statements 100 --functions 100 --lines 100 --branches 100",
+    "coverage": "istanbul cover _mocha -- test.js",
+    "test": "mocha test.js",
+    "test-browser": "zuul -- test.js",
+    "test-node": "istanbul cover _mocha --report lcovonly -- test.js",
+    "watch": "mocha --watch test.js"
+  },
+  "version": "0.1.2"
+}
diff --git a/helloworld/package.json b/helloworld/package.json
new file mode 100755
index 0000000..d99cc8c
--- /dev/null
+++ b/helloworld/package.json
@@ -0,0 +1,23 @@
+{
+  "name": "myapp",
+  "package-name": "mypkg",
+  "app-name": "helloworld",
+  "project-type": "native-app",
+  "icon": "./assets/icon/icon.png",
+  "version": "1.0.0",
+  "description": "",
+  "main": "main.js",
+  "permission": ["android.permission.INTERNET"],
+  "scripts": {
+    "test": "node main.js",
+    "build": "androidjs build"
+  },
+  "dist-path": "./dist",
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "androidjs": "^1.0.0",
+    "left-pad": "^1.3.0",
+    "socket.io": "^2.2.0"
+  }
+}
diff --git a/helloworld/views/index.html b/helloworld/views/index.html
new file mode 100755
index 0000000..0817c54
--- /dev/null
+++ b/helloworld/views/index.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html>
+<head>
+	<title>hello world</title>
+</head>
+<body>
+
+	<h1>Hello World!</h1>
+
+	<style type="text/css">
+		body {
+  			background-color: #a3d5d3;
+		}
+
+	</style>
+
+	<script type="text/javascript">
+		document.getElementsByTagName("h1")[0].style.fontSize = "80px";
+	</script>
+
+</body>
+</html>
\ No newline at end of file
diff --git a/music app/package.json b/music app/package.json
index 932c4d9..7c8123c 100755
--- a/music app/package.json	
+++ b/music app/package.json	
@@ -2,6 +2,7 @@
   "name": "myapp",
   "package-name": "music",
   "app-name": "My Music",
+  "project-type": "native-app",
   "icon": "./assets/icon/courses-icon-10.png",
   "version": "1.0.0",
   "description": "",
diff --git a/react-native/.buckconfig b/react-native/.buckconfig
new file mode 100755
index 0000000..934256c
--- /dev/null
+++ b/react-native/.buckconfig
@@ -0,0 +1,6 @@
+
+[android]
+  target = Google Inc.:Google APIs:23
+
+[maven_repositories]
+  central = https://repo1.maven.org/maven2
diff --git a/react-native/.flowconfig b/react-native/.flowconfig
new file mode 100755
index 0000000..47d80d9
--- /dev/null
+++ b/react-native/.flowconfig
@@ -0,0 +1,69 @@
+[ignore]
+; We fork some components by platform
+.*/*[.]android.js
+
+; Ignore "BUCK" generated dirs
+<PROJECT_ROOT>/\.buckd/
+
+; Ignore unexpected extra "@providesModule"
+.*/node_modules/.*/node_modules/fbjs/.*
+
+; Ignore duplicate module providers
+; For RN Apps installed via npm, "Libraries" folder is inside
+; "node_modules/react-native" but in the source repo it is in the root
+.*/Libraries/react-native/React.js
+
+; Ignore polyfills
+.*/Libraries/polyfills/.*
+
+; Ignore metro
+.*/node_modules/metro/.*
+
+[include]
+
+[libs]
+node_modules/react-native/Libraries/react-native/react-native-interface.js
+node_modules/react-native/flow/
+
+[options]
+emoji=true
+
+esproposal.optional_chaining=enable
+esproposal.nullish_coalescing=enable
+
+module.system=haste
+module.system.haste.use_name_reducers=true
+# get basename
+module.system.haste.name_reducers='^.*/\([a-zA-Z0-9$_.-]+\.js\(\.flow\)?\)$' -> '\1'
+# strip .js or .js.flow suffix
+module.system.haste.name_reducers='^\(.*\)\.js\(\.flow\)?$' -> '\1'
+# strip .ios suffix
+module.system.haste.name_reducers='^\(.*\)\.ios$' -> '\1'
+module.system.haste.name_reducers='^\(.*\)\.android$' -> '\1'
+module.system.haste.name_reducers='^\(.*\)\.native$' -> '\1'
+module.system.haste.paths.blacklist=.*/__tests__/.*
+module.system.haste.paths.blacklist=.*/__mocks__/.*
+module.system.haste.paths.blacklist=<PROJECT_ROOT>/node_modules/react-native/Libraries/Animated/src/polyfills/.*
+module.system.haste.paths.whitelist=<PROJECT_ROOT>/node_modules/react-native/Libraries/.*
+
+munge_underscores=true
+
+module.name_mapper='^[./a-zA-Z0-9$_-]+\.\(bmp\|gif\|jpg\|jpeg\|png\|psd\|svg\|webp\|m4v\|mov\|mp4\|mpeg\|mpg\|webm\|aac\|aiff\|caf\|m4a\|mp3\|wav\|html\|pdf\)$' -> 'RelativeImageStub'
+
+module.file_ext=.js
+module.file_ext=.jsx
+module.file_ext=.json
+module.file_ext=.native.js
+
+suppress_type=$FlowIssue
+suppress_type=$FlowFixMe
+suppress_type=$FlowFixMeProps
+suppress_type=$FlowFixMeState
+
+suppress_comment=\\(.\\|\n\\)*\\$FlowFixMe\\($\\|[^(]\\|(\\(<VERSION>\\)? *\\(site=[a-z,_]*react_native[a-z,_]*\\)?)\\)
+suppress_comment=\\(.\\|\n\\)*\\$FlowIssue\\((\\(<VERSION>\\)? *\\(site=[a-z,_]*react_native[a-z,_]*\\)?)\\)?:? #[0-9]+
+suppress_comment=\\(.\\|\n\\)*\\$FlowFixedInNextDeploy
+suppress_comment=\\(.\\|\n\\)*\\$FlowExpectedError
+
+[version]
+^0.92.0
diff --git a/react-native/.gitattributes b/react-native/.gitattributes
new file mode 100755
index 0000000..d42ff18
--- /dev/null
+++ b/react-native/.gitattributes
@@ -0,0 +1 @@
+*.pbxproj -text
diff --git a/react-native/.gitignore b/react-native/.gitignore
new file mode 100755
index 0000000..5d64756
--- /dev/null
+++ b/react-native/.gitignore
@@ -0,0 +1,56 @@
+# OSX
+#
+.DS_Store
+
+# Xcode
+#
+build/
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+xcuserdata
+*.xccheckout
+*.moved-aside
+DerivedData
+*.hmap
+*.ipa
+*.xcuserstate
+project.xcworkspace
+
+# Android/IntelliJ
+#
+build/
+.idea
+.gradle
+local.properties
+*.iml
+
+# node.js
+#
+node_modules/
+npm-debug.log
+yarn-error.log
+
+# BUCK
+buck-out/
+\.buckd/
+*.keystore
+
+# fastlane
+#
+# It is recommended to not store the screenshots in the git repo. Instead, use fastlane to re-generate the
+# screenshots whenever they are needed.
+# For more information about the recommended setup visit:
+# https://docs.fastlane.tools/best-practices/source-control/
+
+*/fastlane/report.xml
+*/fastlane/Preview.html
+*/fastlane/screenshots
+
+# Bundle artifact
+*.jsbundle
diff --git a/react-native/.watchmanconfig b/react-native/.watchmanconfig
new file mode 100755
index 0000000..9e26dfe
--- /dev/null
+++ b/react-native/.watchmanconfig
@@ -0,0 +1 @@
+{}
\ No newline at end of file
diff --git a/react-native/App.js b/react-native/App.js
new file mode 100755
index 0000000..25a12e9
--- /dev/null
+++ b/react-native/App.js
@@ -0,0 +1,86 @@
+/**
+ * Sample React Native App
+ * https://github.com/facebook/react-native
+ *
+ * @format
+ * @flow
+ */
+
+import React, {Component} from 'react';
+import {Platform, StyleSheet, Text, View, TouchableOpacity, TextInput} from 'react-native';
+
+// const instructions = Platform.select({
+//   ios: 'Press Cmd+R to reload,\n' + 'Cmd+D or shake for dev menu',
+//   android:
+//     'Double tap R on your keyboard to reload,\n' +
+//     'Shake or press menu button for dev menu ',
+// });
+
+type Props = {};
+export default class App extends Component<Props> {
+  state = {
+    names: [
+       {
+          id: 0,
+          name: 'Android',
+       },
+       {
+          id: 1,
+          name: 'Node',
+       },
+       {
+          id: 2,
+          name: 'JavaScript',
+       }
+    ]
+ }
+
+  alertItemName = (item) => {
+    alert(item.name)
+  }
+
+
+  render() {
+    return (
+      <View style = {styles.container}>
+            {
+              this.state.names.map((item, index) => (
+                  <TouchableOpacity
+                     key = {item.id}
+                     style = {styles.container}
+                     onPress = {() => this.alertItemName(item)}>
+                     <Text style = {styles.text}>
+                        {item.name}
+                     </Text>
+                  </TouchableOpacity>
+              ))
+            }
+      </View>
+    );
+  }
+}
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    justifyContent: 'center',
+    alignItems: 'center',
+    backgroundColor: '#F5FCFF',
+  },
+  input: {
+    margin: 15,
+    height: 40,
+    borderColor: '#7a42f4',
+    borderWidth: 1
+  },
+  welcome: {
+    fontSize: 20,
+    textAlign: 'center',
+    margin: 10,
+  },
+  instructions: {
+    textAlign: 'center',
+    color: '#333333',
+    marginBottom: 5,
+  },
+});
diff --git a/react-native/__tests__/App-test.js b/react-native/__tests__/App-test.js
new file mode 100755
index 0000000..1784766
--- /dev/null
+++ b/react-native/__tests__/App-test.js
@@ -0,0 +1,14 @@
+/**
+ * @format
+ */
+
+import 'react-native';
+import React from 'react';
+import App from '../App';
+
+// Note: test renderer must be required after react-native.
+import renderer from 'react-test-renderer';
+
+it('renders correctly', () => {
+  renderer.create(<App />);
+});
diff --git a/react-native/android/app/BUCK b/react-native/android/app/BUCK
new file mode 100755
index 0000000..1c9b988
--- /dev/null
+++ b/react-native/android/app/BUCK
@@ -0,0 +1,55 @@
+# To learn about Buck see [Docs](https://buckbuild.com/).
+# To run your application with Buck:
+# - install Buck
+# - `npm start` - to start the packager
+# - `cd android`
+# - `keytool -genkey -v -keystore keystores/debug.keystore -storepass android -alias androiddebugkey -keypass android -dname "CN=Android Debug,O=Android,C=US"`
+# - `./gradlew :app:copyDownloadableDepsToLibs` - make all Gradle compile dependencies available to Buck
+# - `buck install -r android/app` - compile, install and run application
+#
+
+load(":build_defs.bzl", "create_aar_targets", "create_jar_targets")
+
+lib_deps = []
+
+create_aar_targets(glob(["libs/*.aar"]))
+
+create_jar_targets(glob(["libs/*.jar"]))
+
+android_library(
+    name = "all-libs",
+    exported_deps = lib_deps,
+)
+
+android_library(
+    name = "app-code",
+    srcs = glob([
+        "src/main/java/**/*.java",
+    ]),
+    deps = [
+        ":all-libs",
+        ":build_config",
+        ":res",
+    ],
+)
+
+android_build_config(
+    name = "build_config",
+    package = "com.myapp",
+)
+
+android_resource(
+    name = "res",
+    package = "com.myapp",
+    res = "src/main/res",
+)
+
+android_binary(
+    name = "app",
+    keystore = "//android/keystores:debug",
+    manifest = "src/main/AndroidManifest.xml",
+    package_type = "debug",
+    deps = [
+        ":app-code",
+    ],
+)
diff --git a/react-native/android/app/build.gradle b/react-native/android/app/build.gradle
new file mode 100755
index 0000000..c49e152
--- /dev/null
+++ b/react-native/android/app/build.gradle
@@ -0,0 +1,151 @@
+apply plugin: "com.android.application"
+
+import com.android.build.OutputFile
+
+/**
+ * The react.gradle file registers a task for each build variant (e.g. bundleDebugJsAndAssets
+ * and bundleReleaseJsAndAssets).
+ * These basically call `react-native bundle` with the correct arguments during the Android build
+ * cycle. By default, bundleDebugJsAndAssets is skipped, as in debug/dev mode we prefer to load the
+ * bundle directly from the development server. Below you can see all the possible configurations
+ * and their defaults. If you decide to add a configuration block, make sure to add it before the
+ * `apply from: "../../node_modules/react-native/react.gradle"` line.
+ *
+ * project.ext.react = [
+ *   // the name of the generated asset file containing your JS bundle
+ *   bundleAssetName: "index.android.bundle",
+ *
+ *   // the entry file for bundle generation
+ *   entryFile: "index.android.js",
+ *
+ *   // whether to bundle JS and assets in debug mode
+ *   bundleInDebug: false,
+ *
+ *   // whether to bundle JS and assets in release mode
+ *   bundleInRelease: true,
+ *
+ *   // whether to bundle JS and assets in another build variant (if configured).
+ *   // See http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Build-Variants
+ *   // The configuration property can be in the following formats
+ *   //         'bundleIn${productFlavor}${buildType}'
+ *   //         'bundleIn${buildType}'
+ *   // bundleInFreeDebug: true,
+ *   // bundleInPaidRelease: true,
+ *   // bundleInBeta: true,
+ *
+ *   // whether to disable dev mode in custom build variants (by default only disabled in release)
+ *   // for example: to disable dev mode in the staging build type (if configured)
+ *   devDisabledInStaging: true,
+ *   // The configuration property can be in the following formats
+ *   //         'devDisabledIn${productFlavor}${buildType}'
+ *   //         'devDisabledIn${buildType}'
+ *
+ *   // the root of your project, i.e. where "package.json" lives
+ *   root: "../../",
+ *
+ *   // where to put the JS bundle asset in debug mode
+ *   jsBundleDirDebug: "$buildDir/intermediates/assets/debug",
+ *
+ *   // where to put the JS bundle asset in release mode
+ *   jsBundleDirRelease: "$buildDir/intermediates/assets/release",
+ *
+ *   // where to put drawable resources / React Native assets, e.g. the ones you use via
+ *   // require('./image.png')), in debug mode
+ *   resourcesDirDebug: "$buildDir/intermediates/res/merged/debug",
+ *
+ *   // where to put drawable resources / React Native assets, e.g. the ones you use via
+ *   // require('./image.png')), in release mode
+ *   resourcesDirRelease: "$buildDir/intermediates/res/merged/release",
+ *
+ *   // by default the gradle tasks are skipped if none of the JS files or assets change; this means
+ *   // that we don't look at files in android/ or ios/ to determine whether the tasks are up to
+ *   // date; if you have any other folders that you want to ignore for performance reasons (gradle
+ *   // indexes the entire tree), add them here. Alternatively, if you have JS files in android/
+ *   // for example, you might want to remove it from here.
+ *   inputExcludes: ["android/**", "ios/**"],
+ *
+ *   // override which node gets called and with what additional arguments
+ *   nodeExecutableAndArgs: ["node"],
+ *
+ *   // supply additional arguments to the packager
+ *   extraPackagerArgs: []
+ * ]
+ */
+
+project.ext.react = [
+    entryFile: "index.js"
+]
+
+apply from: "../../node_modules/react-native/react.gradle"
+
+/**
+ * Set this to true to create two separate APKs instead of one:
+ *   - An APK that only works on ARM devices
+ *   - An APK that only works on x86 devices
+ * The advantage is the size of the APK is reduced by about 4MB.
+ * Upload all the APKs to the Play Store and people will download
+ * the correct one based on the CPU architecture of their device.
+ */
+def enableSeparateBuildPerCPUArchitecture = false
+
+/**
+ * Run Proguard to shrink the Java bytecode in release builds.
+ */
+def enableProguardInReleaseBuilds = false
+
+android {
+    compileSdkVersion rootProject.ext.compileSdkVersion
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    defaultConfig {
+        applicationId "com.myapp"
+        minSdkVersion rootProject.ext.minSdkVersion
+        targetSdkVersion rootProject.ext.targetSdkVersion
+        versionCode 1
+        versionName "1.0"
+    }
+    splits {
+        abi {
+            reset()
+            enable enableSeparateBuildPerCPUArchitecture
+            universalApk false  // If true, also generate a universal APK
+            include "armeabi-v7a", "x86", "arm64-v8a", "x86_64"
+        }
+    }
+    buildTypes {
+        release {
+            minifyEnabled enableProguardInReleaseBuilds
+            proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
+        }
+    }
+    // applicationVariants are e.g. debug, release
+    applicationVariants.all { variant ->
+        variant.outputs.each { output ->
+            // For each separate APK per architecture, set a unique version code as described here:
+            // http://tools.android.com/tech-docs/new-build-system/user-guide/apk-splits
+            def versionCodes = ["armeabi-v7a":1, "x86":2, "arm64-v8a": 3, "x86_64": 4]
+            def abi = output.getFilter(OutputFile.ABI)
+            if (abi != null) {  // null for the universal-debug, universal-release variants
+                output.versionCodeOverride =
+                        versionCodes.get(abi) * 1048576 + defaultConfig.versionCode
+            }
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: "libs", include: ["*.jar"])
+    implementation "com.android.support:appcompat-v7:${rootProject.ext.supportLibVersion}"
+    implementation "com.facebook.react:react-native:+"  // From node_modules
+}
+
+// Run this once to be able to run the application with BUCK
+// puts all compile dependencies into folder libs for BUCK to use
+task copyDownloadableDepsToLibs(type: Copy) {
+    from configurations.compile
+    into 'libs'
+}
diff --git a/react-native/android/app/build_defs.bzl b/react-native/android/app/build_defs.bzl
new file mode 100755
index 0000000..fff270f
--- /dev/null
+++ b/react-native/android/app/build_defs.bzl
@@ -0,0 +1,19 @@
+"""Helper definitions to glob .aar and .jar targets"""
+
+def create_aar_targets(aarfiles):
+    for aarfile in aarfiles:
+        name = "aars__" + aarfile[aarfile.rindex("/") + 1:aarfile.rindex(".aar")]
+        lib_deps.append(":" + name)
+        android_prebuilt_aar(
+            name = name,
+            aar = aarfile,
+        )
+
+def create_jar_targets(jarfiles):
+    for jarfile in jarfiles:
+        name = "jars__" + jarfile[jarfile.rindex("/") + 1:jarfile.rindex(".jar")]
+        lib_deps.append(":" + name)
+        prebuilt_jar(
+            name = name,
+            binary_jar = jarfile,
+        )
diff --git a/react-native/android/app/proguard-rules.pro b/react-native/android/app/proguard-rules.pro
new file mode 100755
index 0000000..a92fa17
--- /dev/null
+++ b/react-native/android/app/proguard-rules.pro
@@ -0,0 +1,17 @@
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /usr/local/Cellar/android-sdk/24.3.3/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
diff --git a/react-native/android/app/src/debug/AndroidManifest.xml b/react-native/android/app/src/debug/AndroidManifest.xml
new file mode 100755
index 0000000..fa26aa5
--- /dev/null
+++ b/react-native/android/app/src/debug/AndroidManifest.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
+
+    <application android:usesCleartextTraffic="true" tools:targetApi="28" tools:ignore="GoogleAppIndexingWarning" />
+</manifest>
diff --git a/react-native/android/app/src/main/AndroidManifest.xml b/react-native/android/app/src/main/AndroidManifest.xml
new file mode 100755
index 0000000..e4a7bcf
--- /dev/null
+++ b/react-native/android/app/src/main/AndroidManifest.xml
@@ -0,0 +1,26 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="com.myapp">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+
+    <application
+      android:name=".MainApplication"
+      android:label="@string/app_name"
+      android:icon="@mipmap/ic_launcher"
+      android:roundIcon="@mipmap/ic_launcher_round"
+      android:allowBackup="false"
+      android:theme="@style/AppTheme">
+      <activity
+        android:name=".MainActivity"
+        android:label="@string/app_name"
+        android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
+        android:windowSoftInputMode="adjustResize">
+        <intent-filter>
+            <action android:name="android.intent.action.MAIN" />
+            <category android:name="android.intent.category.LAUNCHER" />
+        </intent-filter>
+      </activity>
+      <activity android:name="com.facebook.react.devsupport.DevSettingsActivity" />
+    </application>
+
+</manifest>
diff --git a/react-native/android/app/src/main/java/com/myapp/MainActivity.java b/react-native/android/app/src/main/java/com/myapp/MainActivity.java
new file mode 100755
index 0000000..c1eef91
--- /dev/null
+++ b/react-native/android/app/src/main/java/com/myapp/MainActivity.java
@@ -0,0 +1,15 @@
+package com.myapp;
+
+import com.facebook.react.ReactActivity;
+
+public class MainActivity extends ReactActivity {
+
+    /**
+     * Returns the name of the main component registered from JavaScript.
+     * This is used to schedule rendering of the component.
+     */
+    @Override
+    protected String getMainComponentName() {
+        return "myapp";
+    }
+}
diff --git a/react-native/android/app/src/main/java/com/myapp/MainApplication.java b/react-native/android/app/src/main/java/com/myapp/MainApplication.java
new file mode 100755
index 0000000..6f1111f
--- /dev/null
+++ b/react-native/android/app/src/main/java/com/myapp/MainApplication.java
@@ -0,0 +1,45 @@
+package com.myapp;
+
+import android.app.Application;
+
+import com.facebook.react.ReactApplication;
+import com.facebook.react.ReactNativeHost;
+import com.facebook.react.ReactPackage;
+import com.facebook.react.shell.MainReactPackage;
+import com.facebook.soloader.SoLoader;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class MainApplication extends Application implements ReactApplication {
+
+  private final ReactNativeHost mReactNativeHost = new ReactNativeHost(this) {
+    @Override
+    public boolean getUseDeveloperSupport() {
+      return BuildConfig.DEBUG;
+    }
+
+    @Override
+    protected List<ReactPackage> getPackages() {
+      return Arrays.<ReactPackage>asList(
+          new MainReactPackage()
+      );
+    }
+
+    @Override
+    protected String getJSMainModuleName() {
+      return "index";
+    }
+  };
+
+  @Override
+  public ReactNativeHost getReactNativeHost() {
+    return mReactNativeHost;
+  }
+
+  @Override
+  public void onCreate() {
+    super.onCreate();
+    SoLoader.init(this, /* native exopackage */ false);
+  }
+}
diff --git a/react-native/android/app/src/main/res/mipmap-hdpi/ic_launcher.png b/react-native/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100755
index 0000000..a2f5908
Binary files /dev/null and b/react-native/android/app/src/main/res/mipmap-hdpi/ic_launcher.png differ
diff --git a/react-native/android/app/src/main/res/mipmap-hdpi/ic_launcher_round.png b/react-native/android/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
new file mode 100755
index 0000000..1b52399
Binary files /dev/null and b/react-native/android/app/src/main/res/mipmap-hdpi/ic_launcher_round.png differ
diff --git a/react-native/android/app/src/main/res/mipmap-mdpi/ic_launcher.png b/react-native/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100755
index 0000000..ff10afd
Binary files /dev/null and b/react-native/android/app/src/main/res/mipmap-mdpi/ic_launcher.png differ
diff --git a/react-native/android/app/src/main/res/mipmap-mdpi/ic_launcher_round.png b/react-native/android/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
new file mode 100755
index 0000000..115a4c7
Binary files /dev/null and b/react-native/android/app/src/main/res/mipmap-mdpi/ic_launcher_round.png differ
diff --git a/react-native/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/react-native/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100755
index 0000000..dcd3cd8
Binary files /dev/null and b/react-native/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png differ
diff --git a/react-native/android/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png b/react-native/android/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
new file mode 100755
index 0000000..459ca60
Binary files /dev/null and b/react-native/android/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png differ
diff --git a/react-native/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/react-native/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100755
index 0000000..8ca12fe
Binary files /dev/null and b/react-native/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png differ
diff --git a/react-native/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png b/react-native/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
new file mode 100755
index 0000000..8e19b41
Binary files /dev/null and b/react-native/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png differ
diff --git a/react-native/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/react-native/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100755
index 0000000..b824ebd
Binary files /dev/null and b/react-native/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png differ
diff --git a/react-native/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png b/react-native/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
new file mode 100755
index 0000000..4c19a13
Binary files /dev/null and b/react-native/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png differ
diff --git a/react-native/android/app/src/main/res/values/strings.xml b/react-native/android/app/src/main/res/values/strings.xml
new file mode 100755
index 0000000..59e17b6
--- /dev/null
+++ b/react-native/android/app/src/main/res/values/strings.xml
@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">myapp</string>
+</resources>
diff --git a/react-native/android/app/src/main/res/values/styles.xml b/react-native/android/app/src/main/res/values/styles.xml
new file mode 100755
index 0000000..319eb0c
--- /dev/null
+++ b/react-native/android/app/src/main/res/values/styles.xml
@@ -0,0 +1,8 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
+        <!-- Customize your theme here. -->
+    </style>
+
+</resources>
diff --git a/react-native/android/build.gradle b/react-native/android/build.gradle
new file mode 100755
index 0000000..3a1d305
--- /dev/null
+++ b/react-native/android/build.gradle
@@ -0,0 +1,33 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    ext {
+        buildToolsVersion = "28.0.3"
+        minSdkVersion = 16
+        compileSdkVersion = 28
+        targetSdkVersion = 28
+        supportLibVersion = "28.0.0"
+    }
+    repositories {
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath("com.android.tools.build:gradle:3.4.0")
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        mavenLocal()
+        google()
+        jcenter()
+        maven {
+            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
+            url "$rootDir/../node_modules/react-native/android"
+        }
+    }
+}
diff --git a/react-native/android/gradle.properties b/react-native/android/gradle.properties
new file mode 100755
index 0000000..89e0d99
--- /dev/null
+++ b/react-native/android/gradle.properties
@@ -0,0 +1,18 @@
+# Project-wide Gradle settings.
+
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+# Default value: -Xmx10248m -XX:MaxPermSize=256m
+# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
diff --git a/react-native/android/gradle/wrapper/gradle-wrapper.jar b/react-native/android/gradle/wrapper/gradle-wrapper.jar
new file mode 100755
index 0000000..5c2d1cf
Binary files /dev/null and b/react-native/android/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/react-native/android/gradle/wrapper/gradle-wrapper.properties b/react-native/android/gradle/wrapper/gradle-wrapper.properties
new file mode 100755
index 0000000..ee69dd6
--- /dev/null
+++ b/react-native/android/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/react-native/android/gradlew b/react-native/android/gradlew
new file mode 100755
index 0000000..b0d6d0a
--- /dev/null
+++ b/react-native/android/gradlew
@@ -0,0 +1,188 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"
diff --git a/react-native/android/gradlew.bat b/react-native/android/gradlew.bat
new file mode 100755
index 0000000..15e1ee3
--- /dev/null
+++ b/react-native/android/gradlew.bat
@@ -0,0 +1,100 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      http://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/react-native/android/keystores/BUCK b/react-native/android/keystores/BUCK
new file mode 100755
index 0000000..88e4c31
--- /dev/null
+++ b/react-native/android/keystores/BUCK
@@ -0,0 +1,8 @@
+keystore(
+    name = "debug",
+    properties = "debug.keystore.properties",
+    store = "debug.keystore",
+    visibility = [
+        "PUBLIC",
+    ],
+)
diff --git a/react-native/android/keystores/debug.keystore.properties b/react-native/android/keystores/debug.keystore.properties
new file mode 100755
index 0000000..121bfb4
--- /dev/null
+++ b/react-native/android/keystores/debug.keystore.properties
@@ -0,0 +1,4 @@
+key.store=debug.keystore
+key.alias=androiddebugkey
+key.store.password=android
+key.alias.password=android
diff --git a/react-native/android/settings.gradle b/react-native/android/settings.gradle
new file mode 100755
index 0000000..297c854
--- /dev/null
+++ b/react-native/android/settings.gradle
@@ -0,0 +1,3 @@
+rootProject.name = 'myapp'
+
+include ':app'
diff --git a/react-native/app.json b/react-native/app.json
new file mode 100755
index 0000000..3832973
--- /dev/null
+++ b/react-native/app.json
@@ -0,0 +1,4 @@
+{
+  "name": "myapp",
+  "displayName": "myapp"
+}
\ No newline at end of file
diff --git a/react-native/babel.config.js b/react-native/babel.config.js
new file mode 100755
index 0000000..f842b77
--- /dev/null
+++ b/react-native/babel.config.js
@@ -0,0 +1,3 @@
+module.exports = {
+  presets: ['module:metro-react-native-babel-preset'],
+};
diff --git a/react-native/index.js b/react-native/index.js
new file mode 100755
index 0000000..a850d03
--- /dev/null
+++ b/react-native/index.js
@@ -0,0 +1,9 @@
+/**
+ * @format
+ */
+
+import {AppRegistry} from 'react-native';
+import App from './App';
+import {name as appName} from './app.json';
+
+AppRegistry.registerComponent(appName, () => App);
diff --git a/react-native/ios/myapp-tvOS/Info.plist b/react-native/ios/myapp-tvOS/Info.plist
new file mode 100755
index 0000000..2fb6a11
--- /dev/null
+++ b/react-native/ios/myapp-tvOS/Info.plist
@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>org.reactjs.native.example.$(PRODUCT_NAME:rfc1034identifier)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UIViewControllerBasedStatusBarAppearance</key>
+	<false/>
+	<key>NSLocationWhenInUseUsageDescription</key>
+	<string></string>
+	<key>NSAppTransportSecurity</key>
+	<!--See http://ste.vn/2015/06/10/configuring-app-transport-security-ios-9-osx-10-11/ -->
+	<dict>
+		<key>NSExceptionDomains</key>
+		<dict>
+			<key>localhost</key>
+			<dict>
+				<key>NSExceptionAllowsInsecureHTTPLoads</key>
+				<true/>
+			</dict>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/react-native/ios/myapp-tvOSTests/Info.plist b/react-native/ios/myapp-tvOSTests/Info.plist
new file mode 100755
index 0000000..886825c
--- /dev/null
+++ b/react-native/ios/myapp-tvOSTests/Info.plist
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>org.reactjs.native.example.$(PRODUCT_NAME:rfc1034identifier)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>BNDL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+</dict>
+</plist>
diff --git a/react-native/ios/myapp.xcodeproj/project.pbxproj b/react-native/ios/myapp.xcodeproj/project.pbxproj
new file mode 100755
index 0000000..5124019
--- /dev/null
+++ b/react-native/ios/myapp.xcodeproj/project.pbxproj
@@ -0,0 +1,1502 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
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+				83CBBA211A601CBA00E9B192 /* Release */,
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diff --git a/react-native/ios/myapp.xcodeproj/xcshareddata/xcschemes/myapp-tvOS.xcscheme b/react-native/ios/myapp.xcodeproj/xcshareddata/xcschemes/myapp-tvOS.xcscheme
new file mode 100755
index 0000000..1aaaef3
--- /dev/null
+++ b/react-native/ios/myapp.xcodeproj/xcshareddata/xcschemes/myapp-tvOS.xcscheme
@@ -0,0 +1,129 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0940"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "NO"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "2D2A28121D9B038B00D4039D"
+               BuildableName = "libReact.a"
+               BlueprintName = "React-tvOS"
+               ReferencedContainer = "container:../node_modules/react-native/React/React.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "2D02E47A1E0B4A5D006451C7"
+               BuildableName = "myapp-tvOS.app"
+               BlueprintName = "myapp-tvOS"
+               ReferencedContainer = "container:myapp.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "NO"
+            buildForArchiving = "NO"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "2D02E48F1E0B4A5D006451C7"
+               BuildableName = "myapp-tvOSTests.xctest"
+               BlueprintName = "myapp-tvOSTests"
+               ReferencedContainer = "container:myapp.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "2D02E48F1E0B4A5D006451C7"
+               BuildableName = "myapp-tvOSTests.xctest"
+               BlueprintName = "myapp-tvOSTests"
+               ReferencedContainer = "container:myapp.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "2D02E47A1E0B4A5D006451C7"
+            BuildableName = "myapp-tvOS.app"
+            BlueprintName = "myapp-tvOS"
+            ReferencedContainer = "container:myapp.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "2D02E47A1E0B4A5D006451C7"
+            BuildableName = "myapp-tvOS.app"
+            BlueprintName = "myapp-tvOS"
+            ReferencedContainer = "container:myapp.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "2D02E47A1E0B4A5D006451C7"
+            BuildableName = "myapp-tvOS.app"
+            BlueprintName = "myapp-tvOS"
+            ReferencedContainer = "container:myapp.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/react-native/ios/myapp.xcodeproj/xcshareddata/xcschemes/myapp.xcscheme b/react-native/ios/myapp.xcodeproj/xcshareddata/xcschemes/myapp.xcscheme
new file mode 100755
index 0000000..f9c6eb9
--- /dev/null
+++ b/react-native/ios/myapp.xcodeproj/xcshareddata/xcschemes/myapp.xcscheme
@@ -0,0 +1,129 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0940"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "NO"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "83CBBA2D1A601D0E00E9B192"
+               BuildableName = "libReact.a"
+               BlueprintName = "React"
+               ReferencedContainer = "container:../node_modules/react-native/React/React.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "13B07F861A680F5B00A75B9A"
+               BuildableName = "myapp.app"
+               BlueprintName = "myapp"
+               ReferencedContainer = "container:myapp.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "NO"
+            buildForArchiving = "NO"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "00E356ED1AD99517003FC87E"
+               BuildableName = "myappTests.xctest"
+               BlueprintName = "myappTests"
+               ReferencedContainer = "container:myapp.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "00E356ED1AD99517003FC87E"
+               BuildableName = "myappTests.xctest"
+               BlueprintName = "myappTests"
+               ReferencedContainer = "container:myapp.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "13B07F861A680F5B00A75B9A"
+            BuildableName = "myapp.app"
+            BlueprintName = "myapp"
+            ReferencedContainer = "container:myapp.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "13B07F861A680F5B00A75B9A"
+            BuildableName = "myapp.app"
+            BlueprintName = "myapp"
+            ReferencedContainer = "container:myapp.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "13B07F861A680F5B00A75B9A"
+            BuildableName = "myapp.app"
+            BlueprintName = "myapp"
+            ReferencedContainer = "container:myapp.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/react-native/ios/myapp/AppDelegate.h b/react-native/ios/myapp/AppDelegate.h
new file mode 100755
index 0000000..2726d5e
--- /dev/null
+++ b/react-native/ios/myapp/AppDelegate.h
@@ -0,0 +1,15 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <React/RCTBridgeDelegate.h>
+#import <UIKit/UIKit.h>
+
+@interface AppDelegate : UIResponder <UIApplicationDelegate, RCTBridgeDelegate>
+
+@property (nonatomic, strong) UIWindow *window;
+
+@end
diff --git a/react-native/ios/myapp/AppDelegate.m b/react-native/ios/myapp/AppDelegate.m
new file mode 100755
index 0000000..0d6e378
--- /dev/null
+++ b/react-native/ios/myapp/AppDelegate.m
@@ -0,0 +1,42 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import "AppDelegate.h"
+
+#import <React/RCTBridge.h>
+#import <React/RCTBundleURLProvider.h>
+#import <React/RCTRootView.h>
+
+@implementation AppDelegate
+
+- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
+{
+  RCTBridge *bridge = [[RCTBridge alloc] initWithDelegate:self launchOptions:launchOptions];
+  RCTRootView *rootView = [[RCTRootView alloc] initWithBridge:bridge
+                                                   moduleName:@"myapp"
+                                            initialProperties:nil];
+
+  rootView.backgroundColor = [[UIColor alloc] initWithRed:1.0f green:1.0f blue:1.0f alpha:1];
+
+  self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
+  UIViewController *rootViewController = [UIViewController new];
+  rootViewController.view = rootView;
+  self.window.rootViewController = rootViewController;
+  [self.window makeKeyAndVisible];
+  return YES;
+}
+
+- (NSURL *)sourceURLForBridge:(RCTBridge *)bridge
+{
+#if DEBUG
+  return [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index" fallbackResource:nil];
+#else
+  return [[NSBundle mainBundle] URLForResource:@"main" withExtension:@"jsbundle"];
+#endif
+}
+
+@end
diff --git a/react-native/ios/myapp/Base.lproj/LaunchScreen.xib b/react-native/ios/myapp/Base.lproj/LaunchScreen.xib
new file mode 100755
index 0000000..78cb86a
--- /dev/null
+++ b/react-native/ios/myapp/Base.lproj/LaunchScreen.xib
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="7702" systemVersion="14D136" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="7701"/>
+        <capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1"/>
+    </dependencies>
+    <objects>
+        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner"/>
+        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
+        <view contentMode="scaleToFill" id="iN0-l3-epB">
+            <rect key="frame" x="0.0" y="0.0" width="480" height="480"/>
+            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+            <subviews>
+                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Powered by React Native" textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="8ie-xW-0ye">
+                    <rect key="frame" x="20" y="439" width="441" height="21"/>
+                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                    <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
+                    <nil key="highlightedColor"/>
+                </label>
+                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="myapp" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="kId-c2-rCX">
+                    <rect key="frame" x="20" y="140" width="441" height="43"/>
+                    <fontDescription key="fontDescription" type="boldSystem" pointSize="36"/>
+                    <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
+                    <nil key="highlightedColor"/>
+                </label>
+            </subviews>
+            <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+            <constraints>
+                <constraint firstItem="kId-c2-rCX" firstAttribute="centerY" secondItem="iN0-l3-epB" secondAttribute="bottom" multiplier="1/3" constant="1" id="5cJ-9S-tgC"/>
+                <constraint firstAttribute="centerX" secondItem="kId-c2-rCX" secondAttribute="centerX" id="Koa-jz-hwk"/>
+                <constraint firstAttribute="bottom" secondItem="8ie-xW-0ye" secondAttribute="bottom" constant="20" id="Kzo-t9-V3l"/>
+                <constraint firstItem="8ie-xW-0ye" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="MfP-vx-nX0"/>
+                <constraint firstAttribute="centerX" secondItem="8ie-xW-0ye" secondAttribute="centerX" id="ZEH-qu-HZ9"/>
+                <constraint firstItem="kId-c2-rCX" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="fvb-Df-36g"/>
+            </constraints>
+            <nil key="simulatedStatusBarMetrics"/>
+            <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
+            <point key="canvasLocation" x="548" y="455"/>
+        </view>
+    </objects>
+</document>
diff --git a/react-native/ios/myapp/Images.xcassets/AppIcon.appiconset/Contents.json b/react-native/ios/myapp/Images.xcassets/AppIcon.appiconset/Contents.json
new file mode 100755
index 0000000..118c98f
--- /dev/null
+++ b/react-native/ios/myapp/Images.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,38 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/react-native/ios/myapp/Images.xcassets/Contents.json b/react-native/ios/myapp/Images.xcassets/Contents.json
new file mode 100755
index 0000000..2d92bd5
--- /dev/null
+++ b/react-native/ios/myapp/Images.xcassets/Contents.json
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/react-native/ios/myapp/Info.plist b/react-native/ios/myapp/Info.plist
new file mode 100755
index 0000000..d86f77c
--- /dev/null
+++ b/react-native/ios/myapp/Info.plist
@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleDisplayName</key>
+	<string>myapp</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>NSLocationWhenInUseUsageDescription</key>
+	<string></string>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UIViewControllerBasedStatusBarAppearance</key>
+	<false/>
+	<key>NSLocationWhenInUseUsageDescription</key>
+	<string></string>
+	<key>NSAppTransportSecurity</key>
+	<!--See http://ste.vn/2015/06/10/configuring-app-transport-security-ios-9-osx-10-11/ -->
+	<dict>
+    <key>NSAllowsArbitraryLoads</key>
+    <true/>
+		<key>NSExceptionDomains</key>
+		<dict>
+			<key>localhost</key>
+			<dict>
+				<key>NSExceptionAllowsInsecureHTTPLoads</key>
+				<true/>
+			</dict>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/react-native/ios/myapp/main.m b/react-native/ios/myapp/main.m
new file mode 100755
index 0000000..c316cf8
--- /dev/null
+++ b/react-native/ios/myapp/main.m
@@ -0,0 +1,16 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <UIKit/UIKit.h>
+
+#import "AppDelegate.h"
+
+int main(int argc, char * argv[]) {
+  @autoreleasepool {
+    return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
+  }
+}
diff --git a/react-native/ios/myappTests/Info.plist b/react-native/ios/myappTests/Info.plist
new file mode 100755
index 0000000..ba72822
--- /dev/null
+++ b/react-native/ios/myappTests/Info.plist
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>BNDL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+</dict>
+</plist>
diff --git a/react-native/ios/myappTests/myappTests.m b/react-native/ios/myappTests/myappTests.m
new file mode 100755
index 0000000..7c93652
--- /dev/null
+++ b/react-native/ios/myappTests/myappTests.m
@@ -0,0 +1,68 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <UIKit/UIKit.h>
+#import <XCTest/XCTest.h>
+
+#import <React/RCTLog.h>
+#import <React/RCTRootView.h>
+
+#define TIMEOUT_SECONDS 600
+#define TEXT_TO_LOOK_FOR @"Welcome to React Native!"
+
+@interface myappTests : XCTestCase
+
+@end
+
+@implementation myappTests
+
+- (BOOL)findSubviewInView:(UIView *)view matching:(BOOL(^)(UIView *view))test
+{
+  if (test(view)) {
+    return YES;
+  }
+  for (UIView *subview in [view subviews]) {
+    if ([self findSubviewInView:subview matching:test]) {
+      return YES;
+    }
+  }
+  return NO;
+}
+
+- (void)testRendersWelcomeScreen
+{
+  UIViewController *vc = [[[RCTSharedApplication() delegate] window] rootViewController];
+  NSDate *date = [NSDate dateWithTimeIntervalSinceNow:TIMEOUT_SECONDS];
+  BOOL foundElement = NO;
+
+  __block NSString *redboxError = nil;
+  RCTSetLogFunction(^(RCTLogLevel level, RCTLogSource source, NSString *fileName, NSNumber *lineNumber, NSString *message) {
+    if (level >= RCTLogLevelError) {
+      redboxError = message;
+    }
+  });
+
+  while ([date timeIntervalSinceNow] > 0 && !foundElement && !redboxError) {
+    [[NSRunLoop mainRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.1]];
+    [[NSRunLoop mainRunLoop] runMode:NSRunLoopCommonModes beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.1]];
+
+    foundElement = [self findSubviewInView:vc.view matching:^BOOL(UIView *view) {
+      if ([view.accessibilityLabel isEqualToString:TEXT_TO_LOOK_FOR]) {
+        return YES;
+      }
+      return NO;
+    }];
+  }
+
+  RCTSetLogFunction(RCTDefaultLogFunction);
+
+  XCTAssertNil(redboxError, @"RedBox error: %@", redboxError);
+  XCTAssertTrue(foundElement, @"Couldn't find element with text '%@' in %d seconds", TEXT_TO_LOOK_FOR, TIMEOUT_SECONDS);
+}
+
+
+@end
diff --git a/react-native/metro.config.js b/react-native/metro.config.js
new file mode 100755
index 0000000..13a9642
--- /dev/null
+++ b/react-native/metro.config.js
@@ -0,0 +1,17 @@
+/**
+ * Metro configuration for React Native
+ * https://github.com/facebook/react-native
+ *
+ * @format
+ */
+
+module.exports = {
+  transformer: {
+    getTransformOptions: async () => ({
+      transform: {
+        experimentalImportSupport: false,
+        inlineRequires: false,
+      },
+    }),
+  },
+};
diff --git a/react-native/package-lock.json b/react-native/package-lock.json
new file mode 100755
index 0000000..2eee0e5
--- /dev/null
+++ b/react-native/package-lock.json
@@ -0,0 +1,11257 @@
+{
+  "name": "myapp",
+  "version": "0.0.1",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "@babel/code-frame": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0.tgz",
+      "integrity": "sha512-OfC2uemaknXr87bdLUkWog7nYuliM9Ij5HUcajsVcMCpQrcLmtxRbVFTIqmcSkSeYRBFBRxs2FiUqFJDLdiebA==",
+      "requires": {
+        "@babel/highlight": "^7.0.0"
+      }
+    },
+    "@babel/core": {
+      "version": "7.4.5",
+      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.4.5.tgz",
+      "integrity": "sha512-OvjIh6aqXtlsA8ujtGKfC7LYWksYSX8yQcM8Ay3LuvVeQ63lcOKgoZWVqcpFwkd29aYU9rVx7jxhfhiEDV9MZA==",
+      "requires": {
+        "@babel/code-frame": "^7.0.0",
+        "@babel/generator": "^7.4.4",
+        "@babel/helpers": "^7.4.4",
+        "@babel/parser": "^7.4.5",
+        "@babel/template": "^7.4.4",
+        "@babel/traverse": "^7.4.5",
+        "@babel/types": "^7.4.4",
+        "convert-source-map": "^1.1.0",
+        "debug": "^4.1.0",
+        "json5": "^2.1.0",
+        "lodash": "^4.17.11",
+        "resolve": "^1.3.2",
+        "semver": "^5.4.1",
+        "source-map": "^0.5.0"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
+          "requires": {
+            "ms": "^2.1.1"
+          }
+        },
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
+        }
+      }
+    },
+    "@babel/generator": {
+      "version": "7.4.4",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.4.4.tgz",
+      "integrity": "sha512-53UOLK6TVNqKxf7RUh8NE851EHRxOOeVXKbK2bivdb+iziMyk03Sr4eaE9OELCbyZAAafAKPDwF2TPUES5QbxQ==",
+      "requires": {
+        "@babel/types": "^7.4.4",
+        "jsesc": "^2.5.1",
+        "lodash": "^4.17.11",
+        "source-map": "^0.5.0",
+        "trim-right": "^1.0.1"
+      }
+    },
+    "@babel/helper-annotate-as-pure": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-annotate-as-pure/-/helper-annotate-as-pure-7.0.0.tgz",
+      "integrity": "sha512-3UYcJUj9kvSLbLbUIfQTqzcy5VX7GRZ/CCDrnOaZorFFM01aXp1+GJwuFGV4NDDoAS+mOUyHcO6UD/RfqOks3Q==",
+      "requires": {
+        "@babel/types": "^7.0.0"
+      }
+    },
+    "@babel/helper-builder-binary-assignment-operator-visitor": {
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-builder-binary-assignment-operator-visitor/-/helper-builder-binary-assignment-operator-visitor-7.1.0.tgz",
+      "integrity": "sha512-qNSR4jrmJ8M1VMM9tibvyRAHXQs2PmaksQF7c1CGJNipfe3D8p+wgNwgso/P2A2r2mdgBWAXljNWR0QRZAMW8w==",
+      "requires": {
+        "@babel/helper-explode-assignable-expression": "^7.1.0",
+        "@babel/types": "^7.0.0"
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diff --git a/react-native/package.json b/react-native/package.json
new file mode 100755
index 0000000..b5f9fbf
--- /dev/null
+++ b/react-native/package.json
@@ -0,0 +1,28 @@
+{
+  "name": "myapp",
+  "version": "0.0.1",
+  "private": true,
+  "project-type": "react-native",
+  "scripts": {
+    "start": "node node_modules/react-native/local-cli/cli.js start",
+    "test": "jest",
+    "start": "androidjs serve"
+  },
+  "dependencies": {
+    "react": "16.8.3",
+    "react-native": "0.59.9"
+  },
+  "devDependencies": {
+    "@babel/core": "7.4.5",
+    "@babel/runtime": "7.4.5",
+    "babel-jest": "24.8.0",
+    "jest": "24.8.0",
+    "metro-react-native-babel-preset": "0.54.1",
+    "react-test-renderer": "16.8.3"
+  },
+  "jest": {
+    "preset": "react-native"
+  },
+  "author": "Pankaj Devesh <pankajdevesh3@gmail.com>",
+  "license": "MIT"
+}
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diff --git a/story-app/node_modules/yeast/LICENSE b/story-app/node_modules/yeast/LICENSE
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diff --git a/story-app/node_modules/yeast/README.md b/story-app/node_modules/yeast/README.md
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diff --git a/story-app/package.json b/story-app/package.json
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index 40a14bf..3cc2c68
--- a/story-app/package.json
+++ b/story-app/package.json
@@ -2,6 +2,7 @@
   "name": "myapp",
   "app-name": "myapp",
   "package-name" : "mypkg",
+  "project-type": "native-app",
   "icon": "./assets/icon/icon.png",
   "permission": ["android.permission.INTERNET", "android.permission.WRITE_EXTERNAL_STORAGE", "android.permission.READ_EXTERNAL_STORAGE"],
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diff --git a/vue-js-example/assets/bootstrap.min.css b/vue-js-example/assets/bootstrap.min.css
new file mode 100755
index 0000000..8826912
--- /dev/null
+++ b/vue-js-example/assets/bootstrap.min.css
@@ -0,0 +1,7 @@
+/*!
+ * Bootstrap v4.1.3 (https://getbootstrap.com/)
+ * Copyright 2011-2018 The Bootstrap Authors
+ * Copyright 2011-2018 Twitter, Inc.
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diff --git a/vue-js-example/assets/popper.min.js b/vue-js-example/assets/popper.min.js
new file mode 100755
index 0000000..79ccbf5
--- /dev/null
+++ b/vue-js-example/assets/popper.min.js
@@ -0,0 +1,5 @@
+/*
+ Copyright (C) Federico Zivolo 2018
+ Distributed under the MIT License (license terms are at http://opensource.org/licenses/MIT).
+ */(function(e,t){'object'==typeof exports&&'undefined'!=typeof module?module.exports=t():'function'==typeof define&&define.amd?define(t):e.Popper=t()})(this,function(){'use strict';function e(e){return e&&'[object Function]'==={}.toString.call(e)}function t(e,t){if(1!==e.nodeType)return[];var o=getComputedStyle(e,null);return t?o[t]:o}function o(e){return'HTML'===e.nodeName?e:e.parentNode||e.host}function n(e){if(!e)return document.body;switch(e.nodeName){case'HTML':case'BODY':return e.ownerDocument.body;case'#document':return e.body;}var i=t(e),r=i.overflow,p=i.overflowX,s=i.overflowY;return /(auto|scroll|overlay)/.test(r+s+p)?e:n(o(e))}function r(e){return 11===e?re:10===e?pe:re||pe}function p(e){if(!e)return document.documentElement;for(var o=r(10)?document.body:null,n=e.offsetParent;n===o&&e.nextElementSibling;)n=(e=e.nextElementSibling).offsetParent;var i=n&&n.nodeName;return 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i[p?'left':'top']=r[o]-(s?i[p?'width':'height']:0),e.placement=T(t),e.offsets.popper=g(i),e}},hide:{order:800,enabled:!0,fn:function(e){if(!q(e.instance.modifiers,'hide','preventOverflow'))return e;var t=e.offsets.reference,o=D(e.instance.modifiers,function(e){return'preventOverflow'===e.name}).boundaries;if(t.bottom<o.top||t.left>o.right||t.top>o.bottom||t.right<o.left){if(!0===e.hide)return e;e.hide=!0,e.attributes['x-out-of-boundaries']=''}else{if(!1===e.hide)return e;e.hide=!1,e.attributes['x-out-of-boundaries']=!1}return e}},computeStyle:{order:850,enabled:!0,fn:function(e,t){var o=t.x,n=t.y,i=e.offsets.popper,r=D(e.instance.modifiers,function(e){return'applyStyle'===e.name}).gpuAcceleration;void 0!==r&&console.warn('WARNING: `gpuAcceleration` option moved to `computeStyle` modifier and will not be supported in future versions of Popper.js!');var s,d,a=void 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r=L(i,t,e,o.positionFixed),p=O(o.placement,r,t,e,o.modifiers.flip.boundariesElement,o.modifiers.flip.padding);return t.setAttribute('x-placement',p),j(t,{position:o.positionFixed?'fixed':'absolute'}),o},gpuAcceleration:void 0}}},ce});
+//# sourceMappingURL=popper.min.js.map
diff --git a/vue-js-example/assets/script.js b/vue-js-example/assets/script.js
old mode 100644
new mode 100755
index 844fce1..22cb12e
--- a/vue-js-example/assets/script.js
+++ b/vue-js-example/assets/script.js
@@ -1,6 +1,22 @@
 var app = new Vue({
   el: '#app',
   data: {
-    message: 'Hello Vue!'
+  	users: [
+  		"Android JS",
+  		"Vue",
+  		"React",
+  		"Angular",
+  		"Phonon"
+  	]
+  },
+  methods: {
+  	remove(el){
+  		for( var i = 0; i < this.users.length; i++) { 
+		   	if ( this.users[i] === el) {
+		    	this.users.splice(i, 1); 
+		     	i--;
+		   	}
+		}
+  	}
   }
 })
\ No newline at end of file
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diff --git a/vue-js-example/node_modules/xmlhttprequest-ssl/tests/test-events.js b/vue-js-example/node_modules/xmlhttprequest-ssl/tests/test-events.js
old mode 100644
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diff --git a/vue-js-example/node_modules/xmlhttprequest-ssl/tests/test-exceptions.js b/vue-js-example/node_modules/xmlhttprequest-ssl/tests/test-exceptions.js
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diff --git a/vue-js-example/node_modules/xmlhttprequest-ssl/tests/test-headers.js b/vue-js-example/node_modules/xmlhttprequest-ssl/tests/test-headers.js
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diff --git a/vue-js-example/node_modules/xmlhttprequest-ssl/tests/test-redirect-302.js b/vue-js-example/node_modules/xmlhttprequest-ssl/tests/test-redirect-302.js
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diff --git a/vue-js-example/node_modules/xmlhttprequest-ssl/tests/test-redirect-303.js b/vue-js-example/node_modules/xmlhttprequest-ssl/tests/test-redirect-303.js
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diff --git a/vue-js-example/node_modules/xmlhttprequest-ssl/tests/test-redirect-307.js b/vue-js-example/node_modules/xmlhttprequest-ssl/tests/test-redirect-307.js
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diff --git a/vue-js-example/node_modules/xmlhttprequest-ssl/tests/test-request-methods.js b/vue-js-example/node_modules/xmlhttprequest-ssl/tests/test-request-methods.js
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diff --git a/vue-js-example/node_modules/xmlhttprequest-ssl/tests/test-request-protocols.js b/vue-js-example/node_modules/xmlhttprequest-ssl/tests/test-request-protocols.js
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diff --git a/vue-js-example/node_modules/xmlhttprequest-ssl/tests/testdata.txt b/vue-js-example/node_modules/xmlhttprequest-ssl/tests/testdata.txt
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diff --git a/vue-js-example/node_modules/yeast/LICENSE b/vue-js-example/node_modules/yeast/LICENSE
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diff --git a/vue-js-example/node_modules/yeast/README.md b/vue-js-example/node_modules/yeast/README.md
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diff --git a/vue-js-example/node_modules/yeast/index.js b/vue-js-example/node_modules/yeast/index.js
old mode 100644
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diff --git a/vue-js-example/node_modules/yeast/package.json b/vue-js-example/node_modules/yeast/package.json
old mode 100644
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diff --git a/vue-js-example/package-lock.json b/vue-js-example/package-lock.json
old mode 100644
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diff --git a/vue-js-example/package.json b/vue-js-example/package.json
old mode 100644
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index 751c9dc..c544078
--- a/vue-js-example/package.json
+++ b/vue-js-example/package.json
@@ -1,7 +1,8 @@
 {
   "name": "vue_example",
   "app-name":"Vue Example",
-  "package-name":"mypkg",
+  "package-name":"hello",
+  "project-type": "native-app",
   "icon":"./assets/icon/icon.png",
   "dist-path":"./dist",
   "permission":["android.permission.INTERNET"],
diff --git a/vue-js-example/views/index.html b/vue-js-example/views/index.html
old mode 100644
new mode 100755
index 9a3e57a..003ac96
--- a/vue-js-example/views/index.html
+++ b/vue-js-example/views/index.html
@@ -3,6 +3,9 @@
 <head>
 	<title>Vue Example</title>
 	<meta name="viewport" content="width=device-width, initial-scale=1.0">
+
+	<link rel="stylesheet" href="../assets/bootstrap.min.css">
+
 	<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
 </head>
 
@@ -13,9 +16,41 @@
 </style>
 
 <body>
-	<div id="app" class = "app">
-	  {{ message }}
+
+<!-- body container -->
+<div id="app" class = "app">
+	<div class="card" style="margin: 10px">
+	  <div class="card-body">
+	    <h5 class="card-title">Welcome to androidjs</h5>
+	    <h6 class="card-subtitle text-muted">AndroidJS + Vue</h6>
+	  </div>
 	</div>
-</body>
+	<ul class="list-group" style="margin-right: 10px;margin-left: 10px">
+	  <li class="list-group-item" @click="remove(u)" v-for="u in users">{{u}}</li>
+	</ul>
+</div>
+
+<!-- footer -->
+<nav  class="navbar fixed-bottom navbar-light bg-light">
+  <a class="navbar-brand" 
+  onclick="toggle_popover()" 
+  id="popover" 
+  data-container="body" 
+  data-toggle="popover" 
+  data-placement="top" 
+  data-content="Edit this page from views/index.html"
+  >views/index.html</a>
+</nav>
+
 <script type="text/javascript" src = "../assets/script.js"></script>
+<script src="../assets/jquery-3.3.1.slim.min.js"></script>
+<script src="../assets/popper.min.js"></script>
+<script src="../assets/bootstrap.min.js"></script>
+<script type="text/javascript">
+	function toggle_popover() {
+		$('#popover').popover('toggle')
+	}
+</script>
+</body>
+
 </html>
\ No newline at end of file