Merge branch 'calendar-activity-button-click' into 'master'

Fixed issue with calendar activity button not sending request correctly

When you click on a square it now sends the AJAX to the correct URL rather than the current URL. This was causing an issue where it would be loading the same page & inserting that into the DOM, rather than calendar activity events.

See merge request !4322

app/assets/javascripts/calendar.js.coffee

@@ -175,7 +175,7 @@ class @Calendar
       .range(['#acd5f2', '#254e77'])
       .domain([0, 3])
 
-  clickDay: (stamp) ->
+  clickDay: (stamp) =>
     if @currentSelectedDate isnt stamp.date
       @currentSelectedDate = stamp.date
       formatted_date = @currentSelectedDate.getFullYear() + "-" + (@currentSelectedDate.getMonth()+1) + "-" + @currentSelectedDate.getDate()