added mixinpanel script to the demo

demo/protected/views/layouts/main.php

@@ -11,6 +11,9 @@
 	<!--[if lt IE 9]>
 		<script type="text/javascript" src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
 	<![endif]-->
+<!-- start Mixpanel --><script type="text/javascript">(function(d,c){var a,b,g,e;a=d.createElement("script");a.type="text/javascript";a.async=!0;a.src=("https:"===d.location.protocol?"https:":"http:")+'//api.mixpanel.com/site_media/js/api/mixpanel.2.js';b=d.getElementsByTagName("script")[0];b.parentNode.insertBefore(a,b);c._i=[];c.init=function(a,d,f){var b=c;"undefined"!==typeof f?b=c[f]=[]:f="mixpanel";g="disable track track_links track_forms register register_once unregister identify name_tag set_config".split(" ");for(e=0;e<
+g.length;e++)(function(a){b[a]=function(){b.push([a].concat(Array.prototype.slice.call(arguments,0)))}})(g[e]);c._i.push([a,d,f])};window.mixpanel=c})(document,[]);
+mixpanel.init("733930f08f73894be317b7fdbfd15229");</script><!-- end Mixpanel -->
 	<script type="text/javascript">
 		var _gaq = _gaq || [];
 		_gaq.push(['_setAccount', 'UA-29040179-1']);