Update DataTree.php
Update DataTree.php

Fix for DataTree not displaying altogether. Fixes #320
rudignet/rapyd-laravel,serverfireteam/rapyd-laravel,zofe/rapyd-laravel,rudignet/rapyd-laravel,rudignet/rapyd-laravel,zofe/rapyd-laravel,serverfireteam/rapyd-laravel,serverfireteam/rapyd-laravel