Episode grid will show downloading on grab

New: Update episode status in UI on grab and download

UI/History/Queue/QueueCollection.js

@@ -0,0 +1,17 @@
+'use strict';
+define(
+    [
+        'backbone',
+        'History/Queue/QueueModel',
+        'Mixins/backbone.signalr.mixin'
+    ], function (Backbone, QueueModel) {
+        var QueueCollection = Backbone.Collection.extend({
+            url  : window.NzbDrone.ApiRoot + '/queue',
+            model: QueueModel
+        });
+
+        var collection = new QueueCollection().bindSignalR();
+        collection.fetch();
+
+        return collection;
+    });