Updated full calendar to 1.6.4

Calendar/Upcoming now update on grab/download events
Better use of backbone collection on calendar
New: Calendar will auto refresh when episodes are grabbed and downloaded

src/UI/History/Queue/QueueCollection.js

@@ -1,13 +1,20 @@
 'use strict';
 define(
     [
+        'underscore',
         'backbone',
         'History/Queue/QueueModel',
         'Mixins/backbone.signalr.mixin'
-    ], function (Backbone, QueueModel) {
+    ], function (_, Backbone, QueueModel) {
         var QueueCollection = Backbone.Collection.extend({
             url  : window.NzbDrone.ApiRoot + '/queue',
-            model: QueueModel
+            model: QueueModel,
+
+            findEpisode: function (episodeId) {
+                return _.find(this.models, function (queueModel) {
+                    return queueModel.get('episode').id === episodeId;
+                });
+            }
         });
 
         var collection = new QueueCollection().bindSignalR();