[Xmonad] darcs patch: make DwmPromote compile (and 2 more)

Mon May 21 15:31:40 EEST 2007 Miikka Koskinen * make DwmPromote compile Mon May 21 15:32:39 EEST 2007 Miikka Koskinen * make FindEmptyWorkspace compile Tue May 22 09:21:18 EEST 2007 Miikka Koskinen * bug fix in DwmPromote. whoops.