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)

// UK lang variables

tinyMCE.addToLang('',{
insert_advhr_desc : 'Horizontale rule',
insert_advhr_width : 'Width',
insert_advhr_size : 'Height',
insert_advhr_noshade : 'No shadow'
});