upgrade dependencies to latest versions and fix bugs

assets/js/components/Options.jsx

@@ -1,8 +1,7 @@
 /* global chrome */
 
 var React = require('react');
-var ReactAddons = require('react/addons');
-var ReactCSSTransitionGroup = ReactAddons.addons.CSSTransitionGroup;
+var ReactCSSTransitionGroup = require('react-addons-css-transition-group');
 
 var config = require('../config');
 
@@ -212,4 +211,4 @@ var Options = React.createClass({
     }
 });
 
-module.exports = Options;
+module.exports = Options;