word8set-0.1.1: CHANGELOG.md

## 0.1.1

- Add `IsString Word8Set` instance, with `fromString = fromASCII`.
- Add `PartialOrd Word8Set` instance.
- Add `Heyting Word8Set` instance.
- Add `symmetricDifference`.

## 0.1

* First version. Released on an unsuspecting world.