Use Skin->getCategories() instead of Skin->getCategoryLinks() and manually wrapping...

Use Skin->getCategories() instead of Skin->getCategoryLinks() and manually wrapping the #catlinks element around it. This to use the centralized output control, no need to duplicate the IDs and class names here.
* Also removing the conditional addition of <br />, which is no longer needed since <div> is a block level element which downs;t need a line break to start on a new line (this <br />) hasn't been needed since it's an unordered list (r92054)
* Follows-up r92054 and it's CR