Tag v0.9.6

Bump version for 0.9.5 release

Signed-off-by: Thomas Druez <[email protected]>

Merge pull request package-url#59 from package-url/57-python2

Fix Python 2 compatibility issue package-url#57

Merge pull request package-url#50 from package-url/release

Upgrade CHANGELOG and bump version to 0.9.3

release v0.9.2

release v0.9.1

- Add and improve URL <-> Package URL conversion for gitlab, github,
  cargo, bitbucket and hackage URL conversions
- Add new purl2url conversion utility
- Remove the null=True on Django CharField fields of the PackageURLMixin
- PackageURL.to_dict() now takes an optional "empty" argument with the
  value that empty values to have. It defaults to None which was the
  current behaviour. For some use cases, having an empty string may be
  a better option and this enables this.

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