feat(gen): Change ga.js to analytics.js

Updates the script to the new Google recommended script.

templates/common/index.html

@@ -24,12 +24,15 @@
     <!-- Add your site or application content here -->
     <div class="container" ng-view></div>
 
-    <!-- Google Analytics: change UA-XXXXX-X to be your site's ID. -->
-    <script>
-      var _gaq=[['_setAccount','UA-XXXXX-X'],['_trackPageview']];
-      (function(d,t){var g=d.createElement(t),s=d.getElementsByTagName(t)[0];
-      g.src='//www.google-analytics.com/ga.js';
-      s.parentNode.insertBefore(g,s)}(document,'script'));
+    <!-- Google Analytics: change UA-XXXXX-X to be your site's ID -->
+     <script>
+       (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+       (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+       m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+       })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+       ga('create', 'UA-XXXXX-X');
+       ga('send', 'pageview');
     </script>
 
     <script src="bower_components/jquery/jquery.js"></script>