Update for 1.6.3 release
Update for 1.6.2 release
Update for 1.6.1 release
Update release instructions to include `py37`,`py38`, and `doc` Tox envs
Up 8000 date release instructions to mention testing via tox
Update for 1.5.2 release
Bump dev version
Update for 1.5.1 release
Update for 1.5.0 release
Update CHANGES.rst for 1.4.1 release