Activity instead of History

New: Renamed history to activity
New: Queue is default tab of activity

src/UI/Activity/Queue/QueueModel.js

@@ -0,0 +1,16 @@
+'use strict';
+define(
+    [
+        'backbone',
+        'Series/SeriesModel',
+        'Series/EpisodeModel'
+    ], function (Backbone, SeriesModel, EpisodeModel) {
+        return Backbone.Model.extend({
+            parse: function (model) {
+                model.series = new SeriesModel(model.series);
+                model.episode = new EpisodeModel(model.episode);
+                model.episode.set('series', model.series);
+                return model;
+            }
+        });
+    });