[Xmonad] darcs patch: RotSlaves rework

Fri Aug 3 20:53:37 CEST 2007 Karsten Schoelzel * RotSlaves rework Rework the logic of RotSlaves and rename it RotSlavesDown, add RotSlavesUp. These rotate the slaves in different directions. Also changed the usage, eliminating the need for "windows" in the keybinding.