Add analytics tracking to docs

doc/template.html

@@ -21,5 +21,16 @@
   <script src="assets/sh_main.js"></script>
   <script src="assets/sh_javascript.min.js"></script>
   <script>highlight(undefined, undefined, 'pre');</script>
+  <script type="text/javascript">
+    var gaJsHost = (("https:" == document.location.protocol) ?
+    "https://ssl." : "http://www.");
+    document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
+  </script>
+  <script type="text/javascript">
+    try {
+      var pageTracker = _gat._getTracker("UA-10874194-2");
+      pageTracker._trackPageview();
+      } catch(err) {}</script>
+  <script type="text/javascript">highlight(undefined, undefined, 'pre');</script>
 </body>
 </html>