removed backbone from VS solution,

renamed NzbDrone.Backbone to UI

UI/Calendar/CalendarCollection.js

@@ -0,0 +1,9 @@
+define(['app', 'Calendar/CalendarModel'], function () {
+    NzbDrone.Calendar.CalendarCollection = Backbone.Collection.extend({
+        url: NzbDrone.Constants.ApiRoot + '/calendar',
+        model: NzbDrone.Calendar.CalendarModel,
+        comparator: function(model) {
+            return model.get('start');
+        }
+    });
+});