Upgrade to release 5.0.0:
Traitlets 5.0 is a new version of traitlets that accumulate
changes over a period of more close to four years; A number of
internal refactoring made the internal code structure cleaner and
simpler, and greatly improved the diagnostic error messages as
well has help and documentation generation. Major changes:
- Removal of Python 2 support,
- Removal of Python 3.0-3.6 support
- Follow NEP 29, and are thus Python 3.7+ only.
- Remove six as a dependency
- Remove funcsig as a dependency.
Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
Acked-by: Trevor Gamblin <trevor.gamblin@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
