Merge pull request #2529 from umbraco/temp-U4-11123-take2

U4-11123 (Take 2) Updates Language Tree to not show having children or right click menu

src/Umbraco.Web/Trees/LanguageTreeController.cs

@@ -35,6 +35,8 @@ namespace Umbraco.Web.Trees
             //this will load in a custom UI instead of the dashboard for the root node
             root.RoutePath = string.Format("{0}/{1}/{2}", Constants.Applications.Settings, Constants.Trees.Languages, "overview");
             root.Icon = "icon-flag-alt";
+            root.HasChildren = false;
+            root.MenuUrl = null;
 
             return root;
         }