drop support for node 0.10, 0.12 and io (#355)

.node-version

@@ -1 +1 @@
-0.10.48
+4.7.1

.travis.yml

@@ -2,18 +2,15 @@ language: node_js
 
 matrix:
   include:
-    - node_js: "0.10"
-      env: SAUCE=true
-    - node_js: "0.12"
-    - node_js: "iojs"
     - node_js: "4"
+      env: SAUCE=true
     - node_js: "5"
     - node_js: "6"
 
 before_script:
 - npm install -g grunt-cli
 
-script: 
+script:
   - grunt test
   - "[ $SAUCE == false ] || [ $TRAVIS_SECURE_ENV_VARS == false ] || grunt sauce"
 

appveyor.yml

@@ -10,7 +10,7 @@ version: "{build}"
 # what combinations to test
 environment:
   matrix:
-    - nodejs_version: 0.10.35
+    - nodejs_version: 4.7.1
 
 # Get the stable version of node
 install:

client/README.md

@@ -5,7 +5,7 @@ Node.js client for [OpenComponents](https://github.com/opentable/oc)
 
 [![NPM](https://nodei.co/npm/oc-client.png?downloads=true)](https://npmjs.org/package/oc-client)
 
-Node.js version: **0.10.0** required
+Node.js version: **4** required
 
 Build status: Linux: [![Build Status](https://secure.travis-ci.org/opentable/oc.png?branch=master)](http://travis-ci.org/opentable/oc) | Windows: [![Build status](https://ci.appveyor.com/api/projects/status/8cklgw4hymutqrsg?svg=true)](https://ci.appveyor.com/project/matteofigus/oc)
 
@@ -196,8 +196,8 @@ client.renderComponents([{
   timeout: 3.0
 }, function(errors, htmls){
   console.log(html);
-  // => ["<div>Header</div>", 
-  //     "<p>Footer</p>", 
+  // => ["<div>Header</div>",
+  //     "<p>Footer</p>",
   //     "<oc-component href=\"\/\/registry.com\/advert\/?position=left\"><\/oc-component>"]
 });
 ```

client/package.json

@@ -20,6 +20,6 @@
     "stringformat": "0.0.5"
   },
   "engines": {
-    "node": ">=0.10.0"
+    "node": ">=4"
   }
 }

package.json

@@ -10,7 +10,7 @@
     "test": "grunt test"
   },
   "engines": {
-    "node": ">=0.10.35"
+    "node": ">=4"
   },
   "repository": {
     "type": "git",