Add fetch polyfill

Author: Philippe Masset

Request.js

@@ -14,6 +14,7 @@
  * and pass it as a string through settings.body, and JSON.parse() that payload on
  * the server. Additions welcome!
  */
+import 'whatwg-fetch';
 
 class Request {
   static send(url, data = {}, settings = {}) {

package.json

@@ -20,5 +20,8 @@
     "eslint-plugin-import": "2.2.0",
     "eslint-plugin-jsx-a11y": "2.2.3",
     "eslint-plugin-react": "6.6.0"
+  },
+  "dependencies": {
+    "whatwg-fetch": "0.11.1"
   }
 }