~~~~~~~~~~~~~~~~~
- Stopped requiring users of the library to set ``FEINCMS3_SITES_SITE_MODEL``
themselves if they are happy with the default site model.
- Changed the model definitions to avoid even more migrations because of
changing choices, hide irrelevant field subclasses.
- Added utilities for only showing objects for some parent object's site in the
admin interface, see ``feincms3_sites.fields``. Everything is ugly and
subject to change.
- Stopped calling ``get_site_model`` for each request, once on startup is
enough.
- Added utilities for building absolute URIs; for example you can now call
``feincms3_sites.middleware.build_absolute_uri(url, site=...)`` in your code
to hopefully add an appropriate protocol and host to a given URL.
- Dropped support for Python 3.8.