removed NzbDrone. namespace, everything is done using require.

UI/Shared/SpinnerView.js

@@ -1,15 +1,13 @@
-'use strict';
+'use strict';
 
 define(
     [
-        'app'
-    ], function () {
-        NzbDrone.Shared.SpinnerView = Backbone.Marionette.ItemView.extend({
+        'marionette'
+    ], function (Marionette) {
+        return Marionette.ItemView.extend({
             template : 'Shared/SpinnerTemplate',
             className: 'nz-spinner row'
         });
-
-        return  NzbDrone.Shared.SpinnerView;
     });