heaps-0.3.6: CHANGELOG.markdown

0.3.6 [2018.01.18]
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* Add `Semigroup` instance for `Heap`.

0.3.5
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* Support `doctest-0.12`

0.3.4.1
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* Fix a typo in the `doctests` for `mapMonotonic`

0.3.4
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* Add `Bifunctor Entry` instance
* Revamp `Setup.hs` to use `cabal-doctest`. This makes it build
  with `Cabal-2.0`, and makes the `doctest`s work with `cabal new-build` and
  sandboxes.

0.3.3
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* Remove redundant constraints
* Build warning-free on GHC 8.0-rc1

0.3.2.1
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* Haddock fix

0.3.2
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* Build without warnings on GHC 7.10
* Overload Foldable `null` and `length` on GHC 7.10+

0.3.1
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* Explicit nominal role annotation

0.3.0.1
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* Nicer formatting of the haddocks