add GA and update ref

Author: Zete Lui

website/views/index.slim

@@ -43,3 +43,14 @@ ul
 h3 Code
 p
   a href="http://github.com/luikore/rsec" Hosted on github.
+
+script type="text/javascript"
+  | var _gaq = _gaq || [];
+    _gaq.push(['_setAccount', 'UA-22444794-1']);
+    _gaq.push(['_trackPageview']);
+    (function() {
+      var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
+      ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
+      var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
+    })();
+