Add WHATWG Fetch API polyfill in core/app.js

core/app.js

@@ -9,6 +9,7 @@
  */
 
 import 'babel-polyfill';
+import 'whatwg-fetch';
 import { createApp } from 'react-app';
 import store from './store';
 import routes from '../routes';

tools/deploy.s3.js

@@ -1,7 +1,11 @@
 /**
  * React Static Boilerplate
  * https://github.com/koistya/react-static-boilerplate
- * Copyright (c) Konstantin Tarkus (@koistya) | MIT license
+ *
+ * Copyright © 2015-2016 Konstantin Tarkus (@koistya)
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE.txt file in the root directory of this source tree.
  */
 
 const s3 = require('s3');