Optimised Google Analytics Loading

site/_includes/header.html

@@ -30,10 +30,8 @@
 {% include social.html %}
 
 <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','https://www.google-analytics.com/analytics.js','ga');
+  window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date;
   ga('create', 'UA-146052-10', 'getbootstrap.com');
   ga('send', 'pageview');
 </script>
+<script async src='https://www.google-analytics.com/analytics.js'></script>