Update google analytics

_includes/footer.html

@@ -1,3 +1,13 @@
 <div class="copyright">
 <span>(c) 2016 <a href="http://xoofx.com">Alexandre Mutel</a> and <a href="http://johnmacfarlane.net/">John Mac Farlane</a> - Logo flip by Chameleon Design from the <a href="https://thenounproject.com/">Noun Project</a></span>
 </div>
+<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');
+
+  ga('create', 'UA-19765162-6', 'auto');
+  ga('send', 'pageview');
+
+</script>