new share admin page (#1233)

static/scripts/app/collections/share-admin-folders.js

@@ -0,0 +1,20 @@
+define([
+    'underscore',
+    'backbone',
+    'common',
+    'app/models/share-admin-folder'
+], function(_, Backbone, Common, ShareAdminFolder) {
+    'use strict';
+
+    var ShareAdminFolderCollection = Backbone.Collection.extend({
+
+        model: ShareAdminFolder,
+
+        url: function() {
+            return Common.getUrl({name: 'share_admin_folders'});
+        }
+
+    });
+
+    return ShareAdminFolderCollection;
+});