Note that the use of RebindableSyntax is because of the need to vary the
layoutHook type throughout the config. The alternative, using the existential
Layout type, was rejected because it required TemplateHaskell in order to look
nice, and TemplateHaskell is not portable.
I've tried to make a version of (>>) that also worked on normal monads, but
have had no luck as of yet. Maybe some intrepid soul can add it later.
XMonad core re-exports Control.Monad.State, which includes
a function "state" if you happen to use mtl-2. Since there's
a chance xmonad still works with mtl-1 avoid imports like:
import XMonad hiding (state)
