CycleWS: change example binding for toggleWS from mod-t to mod-z.  example bindings shouldn't conflict with default key bindings.
CycleWS: change example binding for toggleWS from mod-t to mod-z.  example bindings shouldn't conflict with default key bindings.

darcs-hash:20080201202126-bd4d7-b8f30a97c7b6498e6e552df306b52511d9e50868

jthornber/XMonadContrib,jthornber/XMonadContrib