release v0.9.0

- Make PackageURL hashable.
- Add cargo type or url2purl
- Increase the size of the Django model contrib version to 100 chars.
- Remove Python 3 idioms (f strings)

release v0.8.7

This is a minor update to the Django model mixin. 0.8.6 was a noop

release v0.8.6

This is a minor update to the Django model mixin

release v0.8.5

release v0.8.4

release v0.8.3

release v0.8.2

release v0.8.1

release v0.8.0

release v0.7.0