Corrected licensing issue on YoungPup's DOM-Drag (it is now public domain -> GPLv2+ for Enano); fixed wrongful access denial under specific circumstances (fetch_page_acl() on nonexistent page + wiki mode)

<?php
class Text_Wiki_Render_Plain_Tighten extends Text_Wiki_Render {
    
    
    function token()
    {
        return '';
    }
}
?>