move tracking scripts into separate file

httpbin/templates/index.html

@@ -56,18 +56,7 @@
 
 {% include 'httpbin.1.html' %}
 
-<script type="text/javascript">
-  (function() {
-    var t   = document.createElement('script');
-    t.type  = 'text/javascript';
-    t.async = true;
-    t.id    = 'gauges-tracker';
-    t.setAttribute('data-site-id', '4df5a7d9613f5d577c000001');
-    t.src = '//secure.gaug.es/track.js';
-    var s = document.getElementsByTagName('script')[0];
-    s.parentNode.insertBefore(t, s);
-  })();
-</script>
+{% include 'trackingscripts.html' %}
 
 </body>
 </html>

httpbin/templates/trackingscripts.html

@@ -0,0 +1,3 @@
+{#
+	place tracking scripts (like Google Analytics) here
+#}