Merge pull request #412 from metabase/react_includes_fix

we need to actually load cx & ReactCSSTranstitionGroup so they are av…

resources/frontend_client/app/query_builder/header.react.js

 'use strict';
-/*global setTimeout, clearTimeout, ReactCSSTransitionGroup, Saver, ActionButton, Popover, DownloadIcon, QueryModeToggle, AddToDashboard*/
+/*global setTimeout, clearTimeout, Saver, ActionButton, Popover, DownloadIcon, QueryModeToggle, AddToDashboard*/
+
+var cx = React.addons.classSet,
+    ReactCSSTransitionGroup = React.addons.CSSTransitionGroup;
 
 var QueryHeader = React.createClass({
     displayName: 'QueryHeader',