Made most special pages "visible"; fixup for non-existent special page redirect in paths.php; rewrote Special:AllPages to have pagination (WiP, Special:SpecialPages is possibly next, depending on whether paginate_array works or not)

// UK lang variables

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