Cobalt Category Menu Item - no need to do External URL linking for Category now. - 1 RC

Solves Joomla Menus not being highlighted correctly when displaying Categories via External URL, Fixes Joomla Alias Menus showing ?Itemid=123, and stops weird inconsistent SEF links, Contact me for the code and instructions. I have only just created this for my own purposes and it may not work for everyone. Currently being used successfully with Cobalt 8.457 and Joomla 3.2.1

No Cobalt files are modified.