Merge pull request #784 from bgrozev/round-analytics-values

Rounds floats passed to analytics (instead of truncating them).

analytics.js

 
   Analytics.prototype.sendEvent = function (action, data) {
     // empty label and add the value, the value should be integer or null
-    var value = parseInt(data);
+    var value = Math.round(parseFloat(data));
 
     ga('send', 'event', 'jit.si', action, "", value ? value : null);
   };