UI dependency graph cleanup

src/UI/AppLayout.js

@@ -0,0 +1,23 @@
+define(
+    [
+        'marionette',
+        'Shared/Modal/ModalRegion'
+    ], function (Marionette, ModalRegion) {
+        'use strict';
+
+        var Layout = Marionette.Layout.extend({
+
+            regions: {
+                navbarRegion: '#nav-region',
+                mainRegion  : '#main-region'
+            },
+
+            initialize: function () {
+                this.addRegions({
+                    modalRegion: ModalRegion
+                });
+            }
+        });
+
+        return new Layout({el: 'body'});
+    });