Need a new release to PyPI

[cclauss]

#108 (comment) and drop all legacy Python support.

[StoicLoofah]

Thanks for pointing this out. Yes, a new release would address the 4.11 replays issue.

Regarding dropping legacy Python support, is it sufficient for now to just to remove references to python2 in setup.py? I think we have a lot of compatibility references in the code, but I have to admit that I'm not particularly interested in spending the time to clean all of that up.

[cclauss]

pip install pyupgrade ; pyupgrade --py3-plus

https://github.com/asottile/pyupgrade

[StoicLoofah]

See #85 about dropping legacy support