distributive-0.4: CHANGELOG.markdown

0.4
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* Added support for `Data.Tagged` and `Data.Proxy`.

0.3.1
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* Minor documentation fix

0.3
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* Added instances for `Control.Applicative.Backwards` and `Data.Functor.Reverse` from `transformers` 0.3, taking them from `transformers-compat` if necessary for `transformers` 0.2