keys-2.1: dependencies

Dependencies for keys-2.1

library	array (>=0.3.0.2 && <0.4) base (>=4 && <5) comonad-transformers (>=2.0 && <2.1) comonads-fd (>=2.0 && <2.1) containers (>=0.3 && <0.5) free (>=2.0 && <2.1) semigroupoids (>=1.2.5 && <1.3) semigroups (>=0.7.1 && <0.8) transformers (>=0.2.0 && <0.3)