As KPassivePopup shows, things can be annoying even if they don't steal the focus and just are there. Therefore, as a part of focus stealing prevention, let's also block raising of windows. Also added special request for Kicker, as taskbar requests for raising should be obeyed. (Not that this does anything to KPassivePopup.)

svn path=/trunk/kdebase/kicker/taskmanager/; revision=255070