Gocept.collmex

------------------

- Nothing changed yet.

------------------

- Mark wheel as not universal.

----------------

- Drop support for Python 2.7, 3.5, 3.6.

- Add support for Python 3.9, 3.10, 3.11.

- Avoid password exhaustion by using invalid username for tests.

- Fix the tests to use fewer connections.

----------------

- Drop support for Python 3.3 and 3.4.

- Add support for Python 3.6, 3.7 and 3.8b4.

- Migrate code to GitHub.

- Update tests to new Collmex URLs.

------------------

- Implemented CMXABO, only applicable for "collmex Verein".

------------------

- Implemented `MITGLIED_GET` as `get_members()` and `CMXMGD`
as `models.Member`, both only applicable for "collmex Verein".