Update "active" class to namespace + "active-slide"

A project I am working on uses the asNavFor with a carousel to act as navigation for another slider.  However I ran into a little problem.  When I clicked on the first or last items *twice*, all navigation would stop working (the carousel and the left/right arrows in the main viewport).  It seems the click callback was checking for an "active" class, which isn't on the slide ul > li's.  I've replaced the "active" class with namespace + "active-slide" which has fixed the problem for me.