[xmonad] darcs patch: use-map-in-toggle-hook (and 1 more)

Updates to the X.H.ToggleHook module. 2 patches for repository http://code.haskell.org/XMonadContrib: Sun May 15 15:14:18 EDT 2011 Ben Boeckel * use-map-in-toggle-hook Use "Data.Map String (Bool, Bool)" instead of "[(String, (Bool, Bool))]" in X.H.ToggleHook. Sun May 15 15:17:18 EDT 2011 Ben Boeckel * add-willhook-function Adds a function that hooks into whether the hook will be triggered on the next request.