exitcode-0.1.0.2: changelog.md

0.1.0.2

* `_ExitSuccess` more polymorphic.

0.1.0.1

* Make `_ExitSuccess` more polymorphic. It was unnecessarily specialised to `()`.
* Use `NoImplicitPrelude` and explicit imports.
* Depend on `mmorph` and implement instances for `MFunctor` and `MMonad`.

0.1.0.0

* This change log starts.
* The initial version of exitcode.