mellon-gpio-0.7.0.1: changelog.md

## 0.7.0.1 (2016-06-13)

- Packaging fixes only.

## 0.7.0.0 (2016-06-02)

- Remove the `mellon-web` dependency.
- Port to new `mellon-core` package.
- Update for hpio-0.8.0.1.