Release Process

Check list for new release:

1. Bump the version (bumpversion <major|minor|patch>)
2. Update CHANGELOG.rst (also include the overall changes diff url).
3. Push to github
4. Create release on github
5. Build release (python setup.py sdist bdist_wheel)
6. Optional - Sign release (gpg --detach-sign -a dist/axelrod-fortran-<version>.tar.gz)
7. Push to pypi (twine upload dist/* --skip-existing)