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

web/react/components/post_deleted_modal.jsx

@@ -1,9 +1,9 @@
 // Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
 // See License.txt for license information.
 
-var UserStore = require('../stores/user_store.jsx');
-var AppDispatcher = require('../dispatcher/app_dispatcher.jsx');
-var Constants = require('../utils/constants.jsx');
+import UserStore from '../stores/user_store.jsx';
+import AppDispatcher from '../dispatcher/app_dispatcher.jsx';
+import Constants from '../utils/constants.jsx';
 var ActionTypes = Constants.ActionTypes;
 
 export default class PostDeletedModal extends React.Component {