Add rearrangers to X.A.GridSelect
Add rearrangers to X.A.GridSelect

Ignore-this: ef0dc68e9b725953e69e7b039fe06e9a

darcs-hash:20130123044038-7d114-7a88df05510284aaddcd86c375894079912ed30f

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