Add Google Analytics tracking code to documentation project

git-svn-id: https://svn.apache.org/repos/asf/servicemix/documentation/trunk@1222248 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/main/webapp/WEB-INF/scalate/layouts/default.ssp b/src/main/webapp/WEB-INF/scalate/layouts/default.ssp
index 099e275..580c93c 100644
--- a/src/main/webapp/WEB-INF/scalate/layouts/default.ssp
+++ b/src/main/webapp/WEB-INF/scalate/layouts/default.ssp
@@ -47,6 +47,17 @@
   	  });
     });
   </script>
+  <script type="text/javascript">
+    var _gaq = _gaq || [];
+    _gaq.push(['_setAccount', 'UA-398545-1']);
+    _gaq.push(['_trackPageview']);
+
+    (function() {
+      var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
+      ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
+      var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
+    })();
+  </script>
 </head>
 <body>
     <div id="siteHeader">