free-2.1: dependencies

Dependencies for free-2.1

library	base (>=4 && <5) comonad (>=1.1.1.3 && <1.2) comonad-transformers (>=2.1 && <2.2) comonads-fd (>=2.1 && <2.2) data-lens (>=2.0.3 && <2.1) distributive (>=0.2.1 && <0.3) mtl (>=2.0.1.0 && <2.2) semigroupoids (>=1.2.6.1 && <1.4) semigroups (>=0.8.2 && <0.9) transformers (>=0.2.0 && <0.4)