Releasing clld-phylogeny-plugin

Do platform test via tox (making sure statement coverage is at 100%):

tox -r

flake8 src

Change setup.cfg version to the new version number.
Create the release commit:

git commit -a -m "release <VERSION>"

Create a release tag:

git tag -a v<VERSION> -m "<VERSION> release"

Release to PyPI:

git checkout tags/v<VERSION>
python setup.py clean --all
rm dist/*
python -m build -n
twine upload dist/*

Push to github:

git push origin
git push --tags origin

Append .dev0 to the version number in setup.cfg for the new development cycle.
Commit/push the version change:

git commit -a -m "bump version for development"
git push origin