fix state preserve bug

labs/architecture-examples/thorax/js/app.js

 var ENTER_KEY = 13;
 
 $(function() {
-  Backbone.history.start();
 	// Kick things off by creating the **App**.
 	var view = new Thorax.Views['app']();
   $('body').append(view.el);
+  Backbone.history.start();
 });