This update for python-jsonschema, python-rfc3987, python-strict-rfc3339 fixes the following issues:

- Add patch to fix build with new webcolors.

- update to version 3.2.0 (jsc#SLE-18756):
  * Added a format_nongpl setuptools extra, which installs only format
    dependencies that are non-GPL (#619).

- specfile:
  * require python-importlib-metadata
- update to version 3.1.1:
  * Temporarily revert the switch to js-regex until #611 and #612 are
    resolved.
- changes from version 3.1.0:
  - Regular expressions throughout schemas now respect the ECMA 262
    dialect, as recommended by the specification (#609).

- Activate more of the test suite
- Remove tests and benchmarking from the runtime package
- Update to v3.0.2
  - Fixed a bug where 0 and False were considered equal by
    const and enum
- from v3.0.1
  - Fixed a bug where extending validators did not preserve their 
    notion of which validator property contains $id information.

- Update to 3.0.1:
  - Support for Draft 6 and Draft 7
  - Draft 7 is now the default
  - New TypeChecker object for more complex type definitions (and overrides)
  - Falling back to isodate for the date-time format checker is no longer attempted, in accordance with the specification

- Use %license instead of %doc (bsc#1082318)

- Remove hashbang from runtime module
- Replace PyPI URL with https://github.com/dgerber/rfc3987
- Activate doctests

- Add missing runtime dependency on timezone
- Replace dead link with GitHub URL
- Activate test suite

- Trim bias from descriptions.

- Initial commit, needed by flex