Merge pull request #958 from martenson/fix-google-analytics

[15.10] Fix google analytics on the analysis page

templates/webapps/galaxy/root/index.mako

@@ -60,4 +60,13 @@ ${h.css("base")}
             var app = new App( ${ h.dumps( app_config ) } );
         } );
     });
-</script>
+
+    %if app.config.ga_code:
+          (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+          (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+          m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+          })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+          ga('create', '${app.config.ga_code}', 'auto');
+          ga('send', 'pageview');
+    %endif
+</script>