update playlist drag and drop

MediaBrowser.WebDashboard/Api/DashboardService.cs

@@ -356,8 +356,8 @@ namespace MediaBrowser.WebDashboard.Api
 
             DeleteFoldersByName(Path.Combine(bowerPath, "jquery"), "src");
             DeleteFoldersByName(Path.Combine(bowerPath, "jstree"), "src");
-            DeleteFoldersByName(Path.Combine(bowerPath, "Sortable"), "meteor");
-            DeleteFoldersByName(Path.Combine(bowerPath, "Sortable"), "st");
+            //DeleteFoldersByName(Path.Combine(bowerPath, "Sortable"), "meteor");
+            //DeleteFoldersByName(Path.Combine(bowerPath, "Sortable"), "st");
             //DeleteFoldersByName(Path.Combine(bowerPath, "Swiper"), "src");
            
             if (string.Equals(mode, "cordova", StringComparison.OrdinalIgnoreCase))