docs: Update to generate proper google analytics code

This commit also includes minor doxygen style improvement.

Change-Id: I5ced859c0759a2fd0240068296949067f9ac4c46
diff --git a/docs/named_data_theme/named_data_footer-with-analytics.html.in b/docs/named_data_theme/named_data_footer-with-analytics.html.in
new file mode 100644
index 0000000..68a4a9d
--- /dev/null
+++ b/docs/named_data_theme/named_data_footer-with-analytics.html.in
@@ -0,0 +1,32 @@
+<!-- start footer part -->
+<!--BEGIN GENERATE_TREEVIEW-->
+<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
+  <ul>
+    $navpath
+    <li class="footer">$generatedby
+    <a href="http://www.doxygen.org/index.html">
+    <img class="footer" src="$relpath$doxygen.png" alt="doxygen"/></a> $doxygenversion </li>
+  </ul>
+</div>
+<!--END GENERATE_TREEVIEW-->
+<!--BEGIN !GENERATE_TREEVIEW-->
+<hr class="footer"/>
+<address class="footer"><small>
+$generatedby &#160;<a href="http://www.doxygen.org/index.html">
+<img class="footer" src="$relpath$doxygen.png" alt="doxygen"/>
+</a> $doxygenversion
+</small></address>
+<!--END !GENERATE_TREEVIEW-->
+
+<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','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', '@GOOGLE_ANALYTICS@', 'auto');
+  ga('send', 'pageview');
+</script>
+
+</body>
+</html>