update UrgencyHook example config to reflect changes to WindowNavigation and core Config.hs
update UrgencyHook example config to reflect changes to WindowNavigation and core Config.hs

darcs-hash:20071019145526-bd4d7-047adebfe8ec017ea89afd1fcf1c89473e412c6c

yzhou61/xmonad-contrib,yzhou61/xmonad-contrib,yzhou61/xmonad-contrib