remove unused ace javascript, add google analytics

pinaxcon/templates/_scripts.html

@@ -2,9 +2,18 @@
 {% load staticfiles %}
 
 <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.js"></script>
-<script src="//cdnjs.cloudflare.com/ajax/libs/ace/1.2.0/ace.js"></script>
 
 {% compress js %}
   <script src='{% static "bootstrap/javascripts/bootstrap.min.js" %}'></script>
   <script src='{% static "js/site.js" %}'></script>
 {% endcompress %}
+
+<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','https://www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-104537423-1', 'auto');
+  ga('send', 'pageview');
+</script>