free-3.4: dependencies

Dependencies for free-3.4

library	base (>=4 && <4.7) bifunctors (>=3) comonad (>=3) comonad-transformers (>=3) comonads-fd (>=3) distributive (>=0.2.1) mtl (>=2.0.1.0 && <2.2) semigroupoids (>=3) semigroups (>=0.8.3.1) transformers (>=0.2.0 && <0.4)