Add support for using number in member terms renwewal API #77
Updated the dev-requirements.txt so that flake8 doesn't crash anymore. (One of its dependencies updated.)
Also, the term calculation logic should be in ceo_common so that both the CLI and the server can use it.
Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?