fixed footer placement bug in rant view
Added some checks to see if anyone is logged in before displaying vote
buttons and use item buttons in detail rants and rant previews.
Added userId = 0 as a dumby user.  We check against this to know if
somone is signed in.  It's kinda hacky, but it works for the time being.
Banner link bug fix.  Level winners profile link pseudo-fixed.  My
Profile tabs based on is_user.