Fixed case where HTML comments were getting stripped when opening tag not followed by whitespace (<!--foo--> was stripped, <!-- foo --> was not, neither is stripped now)
// UK lang variables
tinyMCE.addToLang('',{
insert_advhr_desc : 'Horizontale rule',
insert_advhr_width : 'Width',
insert_advhr_size : 'Height',
insert_advhr_noshade : 'No shadow'
});