Changelog for free-functors-0.7.1

CHANGELOG 0.6.5 -> 0.7 - Allow contravariant uses of HFree - Added HHFree for free profunctors/categories/arrows - Updated to base-4.9 - Updated to template-haskell-2.11 - Updated to comonad-5 - Updated to constraints-0.9 - Updated to algebraic-classes-0.7 0.6.4.1 -> 0.6.5 - Updated to transformers-0.5.0.0 - Updated to constraints-0.6 0.6.4 -> 0.6.4.1 - Raise lower bounds of template-haskell 0.6.3.3 -> 0.6.4 - Updated to algebraic-classes 0.6 - Updated to template-haskell-2.10.0.0 0.6.3.2 -> 0.6.3.3 - Updated to void 0.7 0.6.3.1 -> 0.6.3.2 - Updated to constraints 0.4 0.6.2 -> 0.6.3.1 - Updated to comonad 4.2 - Updated to transformers 0.4.1.0 0.6.1.1 -> 0.6.2 - Updated to template-haskell-2.9.0.0 - Added instance Applicative (HFree Monad f) 0.6.1 -> 0.6.1.1 - Added a changelog 0.6 -> 0.6.1 - Updated to comonad-4.0 - Added convert to Data.Functor.HCofree