Bump to v0.7.0

Bump version to v0.6.1

Bump version to 0.6.0

Release v0.5.3

Release v0.5.2

I totally meant for v0.5.2 to be its own version and absolutely did not
forget to pull upstream before running `cargo publish` :>

Release v0.5.1

Release version 0.5.0

Bump version to 0.4.0

Bumped dependenciesm, corrected CHANGELOG.md and released 0.3.0

Signed-off-by: Daniel Egger <daniel@eggers-club.de>

Fix 'unreleased' changelog diff