Upgrading client dependancies. Upgrading to babel 6. Moving to es6 package system.

web/react/pages/home.jsx

@@ -1,9 +1,9 @@
 // Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
 // See License.txt for license information.
 
-var ChannelStore = require('../stores/channel_store.jsx');
-var TeamStore = require('../stores/team_store.jsx');
-var Constants = require('../utils/constants.jsx');
+import ChannelStore from '../stores/channel_store.jsx';
+import TeamStore from '../stores/team_store.jsx';
+import Constants from '../utils/constants.jsx';
 
 function setupHomePage() {
     var last = ChannelStore.getLastVisitedName();