Added tag 8.0.1 for changeset d62bf4e407b3
Bumped to 8.0.2 in preparation for next release.
Add more compatability shims to SetuptoolsVersion

* Enables indexing the SetuptoolsVersion objects, triggering the
  legacy behavior warning.
* Enables comparing the SetuptoolsVersion object to a tuple, again
  triggering the legacy behavior warning.
Update changelog