Release version 0.8.1

Update version to 0.8.1

Release version 0.8.0

Add release notes for 0.8.0 (#88)

* Add release notes for 0.8.0

* Apply suggestions from code review

Co-authored-by: Islon Scherer <[email protected]>

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Co-authored-by: Islon Scherer <[email protected]>

Release version 0.7.0

Add release notes for 0.7.0 (#66)

* Add release notes for 0.7.0

* Fix wrong release date

* Update release notes

* Update release date

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Co-authored-by: Philip K.F. Hölzenspies <[email protected]>

Release version 0.6.0

Add release notes for 0.6 (#29)

Release version 0.5.3

Prepare 0.5.3 release