Bump version to v12.2.0

Bump version to v12.1.1

small fix for documentation to compile

Bump version to v<VERSION>

Tiny spelling fix in CHANGES.rst [ci skip]

Releasing v11.1

Use a dual license file until we can add two files.

requirements-dev.txt: Added missing 'wheel' package

Without it we can't run 'setup.py bdist_wheel'

Bump to v10.0.2

Bump to v10.0.1