small text change in dev docs

dev docs: note added

renamed tox env `rerecord` => `record`

typo in development docs

* add testing documentation ...

* add a sample mailman.cfg for testing

modified vcrpy setting to use yaml instead of json; add more testing documentation (draft)

Some documentation cleanup; New testing section (draft)

- removed documentation build from repository ...

- removed an unused rst file
- removed some outdated development documentation

Fix bug #1175967: owners is not part of a list's settings

* added subscription list page for logged in user ...

* added decorator to allow login via http basic auth (to allow non-browser clients to use API views)
* added api view for list index
* several changes regarding style and navigation structure

added section on workflow to the dev documentation

added mailman.client example to dev documentation

* added developer documentation

Development docs: Added a section about the file structure.

- added empty settings file to doc folder to make sphinx able to import postorius modules ...

- fixed typo in development doc

* added tests and view code (draft) for list members page ...

* added developer documentation
* added mock object helpers
* fixed some typos