Merge pull request grpc#481 from carl-mastrangelo/UA2

temporarily revert to sync tracking snippet to verify website with Se…

_layouts/base.html

@@ -9,11 +9,14 @@
     <title>grpc / {{ page.title }}</title>
 
     <script>
-      window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date;
+      (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','https://www.google-analytics.com/analytics.js','ga');
+
       ga('create', 'UA-60127042-1', 'auto');
       ga('send', 'pageview');
     </script>
-    <script async src='//www.google-analytics.com/analytics.js'></script>
 
     <!-- Webfont -->
     <link href='http://fonts.googleapis.com/css?family=Roboto:400,100,100italic,300,300italic,400italic,500,500italic,700,700italic,900,900italic' rel='stylesheet' type='text/css'>