removed backbone from VS solution,

renamed NzbDrone.Backbone to UI

UI/Series/EpisodeCollection.js

@@ -0,0 +1,6 @@
+define(['app', 'Series/EpisodeModel'], function () {
+    NzbDrone.Series.EpisodeCollection = Backbone.Collection.extend({
+        url: NzbDrone.Constants.ApiRoot + '/episodes',
+        model: NzbDrone.Series.EpisodeModel
+    });
+});