Whoops, broke event RSS feeds for a bit



git-svn-id: http://svn.apostrophenow.org/plugins/apostropheBlogPlugin/branches/1.5@5008 c89fab08-2f9b-42bf-8176-bd3ad6bee547
aBlogItem::hasCategorySlug($slug) returns true if the blog item has the category with the specified slug



git-svn-id: http://svn.apostrophenow.org/plugins/apostropheBlogPlugin/branches/1.5@5009 c89fab08-2f9b-42bf-8176-bd3ad6bee547