Upgrade to release 2.1.1:
- Fixed handling of argparse's default options group name which
was changed in Python 3.10
- Restored plugins and tests_isolated directories to tarball
published to PyPI for cmd2 release
Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Trevor Gamblin <trevor.gamblin@windriver.com>
