(site) Add GA tracking

site/public/_ga.ejs

@@ -0,0 +1,9 @@
+<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', 'UA-46705270-1', 'planetaryjs.com');
+  ga('send', 'pageview');
+</script>

site/public/_layout.ejs

@@ -12,5 +12,6 @@
 
   <%- partial("_scripts") %>
   <script type="text/javascript" src="js/homepage.js"></script>
+  <%- partial("_ga") %>
 </body>
 </html>

site/public/documentation/_layout.ejs

@@ -60,5 +60,6 @@
     </div>
   </div>
   <script type='text/javascript' src='/js/prism.js'></script>
+  <%- partial("../_ga") %>
 </body>
 </html>

site/public/examples/_layout.ejs

@@ -15,5 +15,6 @@
     </div>
   </div>
   <script type='text/javascript' src='/js/prism.js'></script>
+  <%- partial("../_ga") %>
 </body>
 </html>

site/public/examples/quake/_layout.ejs

@@ -60,5 +60,6 @@
   <%- partial("../../_scripts") %>
   <script type='text/javascript' src='/js/lib/moment.min.js'></script>
   <script type='text/javascript' src='/examples/quake/quake.js'></script>
+  <%- partial("../../_ga") %>
 </body>
 </html>