Release 3.1.1
What's Changed
- Fix stale py36 references in pyproject.toml by @jeking3 in #978
- Fix local setup.py install versioning issue by @jeking3 in #978
- Prepare for 3.1.1 and remove py2 universal wheel by @jeking3 in #979
Full Changelog: 3.1.0...3.1.1