v2.0

• Remove the ol' nose support (it's really dead, just admit pytest
  is the best already people).
• Move pytest conf to separate file (don't need to escape % and
  probably other weird stuff).
• Added Python 3.10 boilerplate.
• Added a pre-commit formatter option.
• Added support for GitHub Actions.
• Added support for setting a specific main branch.
• Various packaging and testing fixes and improvements.