version bump
Merge pull request #17 from fizruk/master

iterT for FreeT and coiterT for CofreeT
Generalized `liftF`
CHANGELOG for generalized liftF
Merge branch 'master' of github.com:ekmett/free

Conflicts:
	src/Control/Monad/Trans/Free.hs
Added iterM for fizruk
Switched Control.Monad.Free.Church to export MonadFree and to use the common liftF
Added iterM for Church free
Added Control.MonadPlus.iterM
CHANGELOG: Added iterM