Release process

• Install maintainer tools: pip install twine wheel
• Increment version number (in skcosmo/__init__.py)
• Commit & tag as vX.Y.Z, push commit and tag (git push && git push --tags)
• Check documentation build for the tag on RTD
• Remove local dist & build folder: rm -rf build dist
• Create sdist with python setup.py sdist
• Create wheel with python setup.py bdist_wheel
• Check sdist and wheel within a new virtual environment (pip install ./dist/skcosmo-X.Y.Z.tar.gz), run tests)
• Upload the release to the PyPI test server, using twine
  • twine upload --repository testpypi dist/*
• Upload the release to the PyPI real server
  • twine upload dist/*
• Celebrate 🎉 🎉