diff --git a/.travis.yml b/.travis.yml
index fd6ec932..bd6d64e3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,9 @@
 language: node_js
 node_js:
 - 8.9.4
+cache:
+  directories:
+    - node_modules
 branches:
   only:
   - master
@@ -11,9 +14,9 @@ notifications:
   webhooks:
     urls:
     - https://hooks.glip.com/webhook/6d688e2d-f076-4521-8213-f2479e99afe6
-    on_success: change
+    on_success: never
     on_failure: always
-    on_start: change
+    on_start: never
 script:
 - npm run test-ci
 deploy:
diff --git a/package-lock.json b/package-lock.json
index 793a6abf..6e12199e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -239,7 +239,6 @@
       "version": "1.3.5",
       "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
       "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
-      "dev": true,
       "requires": {
         "mime-types": "~2.1.18",
         "negotiator": "0.6.1"
@@ -423,8 +422,7 @@
     "array-flatten": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
-      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI=",
-      "dev": true
+      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
     },
     "array-unique": {
       "version": "0.2.1",
@@ -990,7 +988,6 @@
       "version": "1.18.2",
       "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.2.tgz",
       "integrity": "sha1-h2eKGdhLR9hZuDGZvVm84iKxBFQ=",
-      "dev": true,
       "requires": {
         "bytes": "3.0.0",
         "content-type": "~1.0.4",
@@ -1063,7 +1060,7 @@
     },
     "browserify-aes": {
       "version": "1.2.0",
-      "resolved": "http://registry.npmjs.org/browserify-aes/-/browserify-aes-1.2.0.tgz",
+      "resolved": "https://registry.npmjs.org/browserify-aes/-/browserify-aes-1.2.0.tgz",
       "integrity": "sha512-+7CHXqGuspUn/Sl5aO7Ea0xWGAtETPXNSAjHo48JfLdPWcMng33Xe4znFvQweqc/uzk5zSOI3H52CYnjCfb5hA==",
       "dev": true,
       "requires": {
@@ -1100,7 +1097,7 @@
     },
     "browserify-rsa": {
       "version": "4.0.1",
-      "resolved": "http://registry.npmjs.org/browserify-rsa/-/browserify-rsa-4.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/browserify-rsa/-/browserify-rsa-4.0.1.tgz",
       "integrity": "sha1-IeCr+vbyApzy+vsTNWenAdQTVSQ=",
       "dev": true,
       "requires": {
@@ -1197,8 +1194,7 @@
     "bytes": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.0.0.tgz",
-      "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg=",
-      "dev": true
+      "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg="
     },
     "cache-base": {
       "version": "1.0.1",
@@ -1494,14 +1490,12 @@
     "content-disposition": {
       "version": "0.5.2",
       "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.2.tgz",
-      "integrity": "sha1-DPaLud318r55YcOoUXjLhdunjLQ=",
-      "dev": true
+      "integrity": "sha1-DPaLud318r55YcOoUXjLhdunjLQ="
     },
     "content-type": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.4.tgz",
-      "integrity": "sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA==",
-      "dev": true
+      "integrity": "sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA=="
     },
     "continuable-cache": {
       "version": "0.3.1",
@@ -1521,14 +1515,12 @@
     "cookie": {
       "version": "0.3.1",
       "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.3.1.tgz",
-      "integrity": "sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s=",
-      "dev": true
+      "integrity": "sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s="
     },
     "cookie-signature": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz",
-      "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw=",
-      "dev": true
+      "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw="
     },
     "copy-descriptor": {
       "version": "0.1.1",
@@ -1578,7 +1570,7 @@
     },
     "create-hash": {
       "version": "1.2.0",
-      "resolved": "http://registry.npmjs.org/create-hash/-/create-hash-1.2.0.tgz",
+      "resolved": "https://registry.npmjs.org/create-hash/-/create-hash-1.2.0.tgz",
       "integrity": "sha512-z00bCGNHDG8mHAkP7CtT1qVu+bFQUPjYq/4Iv3C3kWjTFV10zIjfSoeqXo9Asws8gwSHDGj/hl2u4OGIjapeCg==",
       "dev": true,
       "requires": {
@@ -1591,7 +1583,7 @@
     },
     "create-hmac": {
       "version": "1.1.7",
-      "resolved": "http://registry.npmjs.org/create-hmac/-/create-hmac-1.1.7.tgz",
+      "resolved": "https://registry.npmjs.org/create-hmac/-/create-hmac-1.1.7.tgz",
       "integrity": "sha512-MJG9liiZ+ogc4TzUwuvbER1JRdgvUFSB5+VR/g5h82fGaIRWMWddtKBHi7/sVhfjQZ6SehlyhvQYrcYkaUIpLg==",
       "dev": true,
       "requires": {
@@ -1718,7 +1710,6 @@
       "version": "2.6.9",
       "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
       "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
-      "dev": true,
       "requires": {
         "ms": "2.0.0"
       }
@@ -1827,8 +1818,7 @@
     "depd": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/depd/-/depd-1.1.2.tgz",
-      "integrity": "sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak=",
-      "dev": true
+      "integrity": "sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak="
     },
     "des.js": {
       "version": "1.0.0",
@@ -1843,8 +1833,7 @@
     "destroy": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.0.4.tgz",
-      "integrity": "sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA=",
-      "dev": true
+      "integrity": "sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA="
     },
     "detect-indent": {
       "version": "4.0.0",
@@ -1869,7 +1858,7 @@
     },
     "diffie-hellman": {
       "version": "5.0.3",
-      "resolved": "http://registry.npmjs.org/diffie-hellman/-/diffie-hellman-5.0.3.tgz",
+      "resolved": "https://registry.npmjs.org/diffie-hellman/-/diffie-hellman-5.0.3.tgz",
       "integrity": "sha512-kqag/Nl+f3GwyK25fhUMYj81BUOrZ9IuJsjIcDE5icNM9FJHAVm3VcUDxdLPoQtTuUylWm6ZIknYJwwaPxsUzg==",
       "dev": true,
       "requires": {
@@ -1919,7 +1908,7 @@
     },
     "dotenv": {
       "version": "5.0.1",
-      "resolved": "http://registry.npmjs.org/dotenv/-/dotenv-5.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-5.0.1.tgz",
       "integrity": "sha512-4As8uPrjfwb7VXC+WnLCbXK7y+Ueb2B3zgNCePYfhxS1PYeaO1YTeplffTEcbfLhvFNGLAz90VvJs9yomG7bow==",
       "dev": true
     },
@@ -1946,8 +1935,7 @@
     "ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
-      "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0=",
-      "dev": true
+      "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
     },
     "electron-to-chromium": {
       "version": "1.3.73",
@@ -1979,8 +1967,7 @@
     "encodeurl": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
-      "integrity": "sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k=",
-      "dev": true
+      "integrity": "sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k="
     },
     "enhanced-resolve": {
       "version": "3.4.1",
@@ -2130,8 +2117,7 @@
     "escape-html": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
-      "integrity": "sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg=",
-      "dev": true
+      "integrity": "sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg="
     },
     "escape-string-regexp": {
       "version": "1.0.5",
@@ -2212,8 +2198,7 @@
     "etag": {
       "version": "1.8.1",
       "resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",
-      "integrity": "sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc=",
-      "dev": true
+      "integrity": "sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc="
     },
     "event-emitter": {
       "version": "0.3.5",
@@ -2227,7 +2212,7 @@
     },
     "events": {
       "version": "1.1.1",
-      "resolved": "http://registry.npmjs.org/events/-/events-1.1.1.tgz",
+      "resolved": "https://registry.npmjs.org/events/-/events-1.1.1.tgz",
       "integrity": "sha1-nr23Y1rQmccNzEwqH1AEKI6L2SQ=",
       "dev": true
     },
@@ -2305,7 +2290,6 @@
       "version": "4.16.3",
       "resolved": "http://registry.npmjs.org/express/-/express-4.16.3.tgz",
       "integrity": "sha1-avilAjUNsyRuzEvs9rWjTSL37VM=",
-      "dev": true,
       "requires": {
         "accepts": "~1.3.5",
         "array-flatten": "1.1.1",
@@ -2342,14 +2326,12 @@
         "path-to-regexp": {
           "version": "0.1.7",
           "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz",
-          "integrity": "sha1-32BBeABfUi8V60SQ5yR6G/qmf4w=",
-          "dev": true
+          "integrity": "sha1-32BBeABfUi8V60SQ5yR6G/qmf4w="
         },
         "safe-buffer": {
           "version": "5.1.1",
           "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.1.tgz",
-          "integrity": "sha512-kKvNJn6Mm93gAczWVJg7wH+wGYWNrDHdWvpUmHyEsgCtIwwo3bqPtV4tR5tuPaUhTOo/kvhVwd8XwwOllGYkbg==",
-          "dev": true
+          "integrity": "sha512-kKvNJn6Mm93gAczWVJg7wH+wGYWNrDHdWvpUmHyEsgCtIwwo3bqPtV4tR5tuPaUhTOo/kvhVwd8XwwOllGYkbg=="
         }
       }
     },
@@ -2479,7 +2461,6 @@
       "version": "1.1.1",
       "resolved": "http://registry.npmjs.org/finalhandler/-/finalhandler-1.1.1.tgz",
       "integrity": "sha512-Y1GUDo39ez4aHAw7MysnUD5JzYX+WaIj8I57kO3aEPT1fFRL4sr7mjei97FgnwhAyyzRYmQZaTHb2+9uZ1dPtg==",
-      "dev": true,
       "requires": {
         "debug": "2.6.9",
         "encodeurl": "~1.0.2",
@@ -2538,8 +2519,7 @@
     "forwarded": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.1.2.tgz",
-      "integrity": "sha1-mMI9qxF1ZXuMBXPozszZGw/xjIQ=",
-      "dev": true
+      "integrity": "sha1-mMI9qxF1ZXuMBXPozszZGw/xjIQ="
     },
     "fragment-cache": {
       "version": "0.2.1",
@@ -2553,8 +2533,7 @@
     "fresh": {
       "version": "0.5.2",
       "resolved": "https://registry.npmjs.org/fresh/-/fresh-0.5.2.tgz",
-      "integrity": "sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac=",
-      "dev": true
+      "integrity": "sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac="
     },
     "fs-extra": {
       "version": "4.0.3",
@@ -3410,7 +3389,6 @@
       "version": "1.6.3",
       "resolved": "http://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz",
       "integrity": "sha1-i1VoC7S+KDoLW/TqLjhYC+HZMg0=",
-      "dev": true,
       "requires": {
         "depd": "~1.1.2",
         "inherits": "2.0.3",
@@ -3444,8 +3422,7 @@
     "iconv-lite": {
       "version": "0.4.19",
       "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.19.tgz",
-      "integrity": "sha512-oTZqweIP51xaGPI4uPa56/Pri/480R+mo7SeU+YETByQNhDG55ycFyNLIgta9vXhILrxXDmF7ZGhqZIcuN0gJQ==",
-      "dev": true
+      "integrity": "sha512-oTZqweIP51xaGPI4uPa56/Pri/480R+mo7SeU+YETByQNhDG55ycFyNLIgta9vXhILrxXDmF7ZGhqZIcuN0gJQ=="
     },
     "ieee754": {
       "version": "1.1.12",
@@ -3553,8 +3530,7 @@
     "ipaddr.js": {
       "version": "1.8.0",
       "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.8.0.tgz",
-      "integrity": "sha1-6qM9bd16zo9/b+DJygRA5wZzix4=",
-      "dev": true
+      "integrity": "sha1-6qM9bd16zo9/b+DJygRA5wZzix4="
     },
     "is-accessor-descriptor": {
       "version": "0.1.6",
@@ -4953,7 +4929,7 @@
     },
     "magic-string": {
       "version": "0.22.5",
-      "resolved": "http://registry.npmjs.org/magic-string/-/magic-string-0.22.5.tgz",
+      "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.22.5.tgz",
       "integrity": "sha512-oreip9rJZkzvA8Qzk9HFs8fZGF/u7H/gtrE8EN6RjKJ9kh2HlC+yQ2QezifqTZfGyiuAV0dRv5a+y/8gBb1m9w==",
       "dev": true,
       "requires": {
@@ -5015,8 +4991,7 @@
     "media-typer": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
-      "integrity": "sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g=",
-      "dev": true
+      "integrity": "sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g="
     },
     "mem": {
       "version": "1.1.0",
@@ -5064,8 +5039,7 @@
     "merge-descriptors": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-1.0.1.tgz",
-      "integrity": "sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E=",
-      "dev": true
+      "integrity": "sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E="
     },
     "merge-stream": {
       "version": "1.0.1",
@@ -5079,8 +5053,7 @@
     "methods": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/methods/-/methods-1.1.2.tgz",
-      "integrity": "sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4=",
-      "dev": true
+      "integrity": "sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4="
     },
     "micromatch": {
       "version": "2.3.11",
@@ -5115,20 +5088,17 @@
     "mime": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/mime/-/mime-1.4.1.tgz",
-      "integrity": "sha512-KI1+qOZu5DcW6wayYHSzR/tXKCDC5Om4s1z2QJjDULzLcmf3DvzS7oluY4HCTrc+9FiKmWUgeNLg7W3uIQvxtQ==",
-      "dev": true
+      "integrity": "sha512-KI1+qOZu5DcW6wayYHSzR/tXKCDC5Om4s1z2QJjDULzLcmf3DvzS7oluY4HCTrc+9FiKmWUgeNLg7W3uIQvxtQ=="
     },
     "mime-db": {
       "version": "1.36.0",
       "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.36.0.tgz",
-      "integrity": "sha512-L+xvyD9MkoYMXb1jAmzI/lWYAxAMCPvIBSWur0PZ5nOf5euahRLVqH//FKW9mWp2lkqUgYiXPgkzfMUFi4zVDw==",
-      "dev": true
+      "integrity": "sha512-L+xvyD9MkoYMXb1jAmzI/lWYAxAMCPvIBSWur0PZ5nOf5euahRLVqH//FKW9mWp2lkqUgYiXPgkzfMUFi4zVDw=="
     },
     "mime-types": {
       "version": "2.1.20",
       "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.20.tgz",
       "integrity": "sha512-HrkrPaP9vGuWbLK1B1FfgAkbqNjIuy4eHlIYnFi7kamZyLLrGlo2mpcx0bBmNpKqBtYtAfGbodDddIgddSJC2A==",
-      "dev": true,
       "requires": {
         "mime-db": "~1.36.0"
       }
@@ -5214,8 +5184,7 @@
     "ms": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-      "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
-      "dev": true
+      "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
     },
     "nan": {
       "version": "2.11.0",
@@ -5270,8 +5239,7 @@
     "negotiator": {
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.1.tgz",
-      "integrity": "sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk=",
-      "dev": true
+      "integrity": "sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk="
     },
     "neo-async": {
       "version": "2.5.2",
@@ -5645,7 +5613,6 @@
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",
       "integrity": "sha1-IPEzZIGwg811M3mSoWlxqi2QaUc=",
-      "dev": true,
       "requires": {
         "ee-first": "1.1.1"
       }
@@ -5784,7 +5751,7 @@
     },
     "parse-asn1": {
       "version": "5.1.1",
-      "resolved": "http://registry.npmjs.org/parse-asn1/-/parse-asn1-5.1.1.tgz",
+      "resolved": "https://registry.npmjs.org/parse-asn1/-/parse-asn1-5.1.1.tgz",
       "integrity": "sha512-KPx7flKXg775zZpnp9SxJlz00gTd4BmJ2yJufSc44gMCRrRQ7NSzAcSJQfifuOLgW6bEi+ftrALtsgALeB2Adw==",
       "dev": true,
       "requires": {
@@ -5824,8 +5791,7 @@
     "parseurl": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.2.tgz",
-      "integrity": "sha1-/CidTtiZMRlGDBViUyYs3I3mW/M=",
-      "dev": true
+      "integrity": "sha1-/CidTtiZMRlGDBViUyYs3I3mW/M="
     },
     "pascalcase": {
       "version": "0.1.1",
@@ -6056,7 +6022,6 @@
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.4.tgz",
       "integrity": "sha512-5erio2h9jp5CHGwcybmxmVqHmnCBZeewlfJ0pex+UW7Qny7OOZXTtH56TGNyBizkgiOwhJtMKrVzDTeKcySZwA==",
-      "dev": true,
       "requires": {
         "forwarded": "~0.1.2",
         "ipaddr.js": "1.8.0"
@@ -6109,8 +6074,7 @@
     "qs": {
       "version": "6.5.1",
       "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.1.tgz",
-      "integrity": "sha512-eRzhrN1WSINYCDCbrz796z37LOe3m5tmW7RQf6oBntukAG1nmovJvhnwHHRMAfeoItc1m2Hk02WER2aQ/iqs+A==",
-      "dev": true
+      "integrity": "sha512-eRzhrN1WSINYCDCbrz796z37LOe3m5tmW7RQf6oBntukAG1nmovJvhnwHHRMAfeoItc1m2Hk02WER2aQ/iqs+A=="
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@@ -8075,8 +8029,7 @@
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-      "dev": true
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@@ -8219,8 +8171,7 @@
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@@ -8707,7 +8658,7 @@
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diff --git a/package.json b/package.json
index a3ccc23e..3d5636bb 100644
--- a/package.json
+++ b/package.json
@@ -35,6 +35,7 @@
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     "ionic-angular": "3.9.2",
     "ionicons": "3.0.0",
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