Develop imperial

[jamesturner246]

Description

Moved bumpversion config from setup.cfg to its own file, since bumpversion self-updates its config file.

Remove old pycodestyle config, which is now handled by flake8.

Fixes # (issue)

Type of change

Please add a line in the relevant section of
CHANGELOG.md to
document the change (include PR #) - note reverse order of PR #s.

• New feature (non-breaking change which adds functionality)
• Optimization (non-breaking, back-end change that speeds up the code)
• Bug fix (non-breaking change which fixes an issue)
• Breaking change (whatever its nature)

Key checklist

• All tests pass: $ python -m pytest
• The documentation builds and looks OK: $ python setup.py build_sphinx

Further checks

• Code is commented, particularly in hard-to-understand areas
• Tests added that prove fix is effective or that feature works