Python-3.11, Django-4.1

Added support for Django-4.1 started testing for Python-3.11

Django-4.0

Added support for Django-4.0 started testing for python-3.10, stopped testing for python-3.6 and python-3.7 (not supported by Django-4.0).

Django-3.2

Minor code updates for Django-3.2.
Dropped support for python-3-5.

Fixed compatibility with Django-3.1

Initialize modelformset_factory within the FormView instance instead of using the class variable form_class because get_language() has a context only within the request/response cycle.

• https://code.djangoproject.com/ticket/31911#ticket
• matthiask/django-translated-fields#24 (comment)

Fixed bug in the setting for the named url

Fixed bug in LETSAGREE_LOGOUT_URL setting.

Free text as logout reverse url

Deprecated LETSAGREE_LOGOUT_APP_NAME in favor of LETSAGREE_LOGOUT_UR.

Downgrade to Django-3.0

Uncompatible with Django-3.1 until #39 is fixed.

Set properly the named URL in settings

Added the ability to set a namespaced url in the "logout application name" setting. #36

AnonymousUser should not access letsagree urls

When an Anonymous user visits the letsagree url, should receive a 404 response. #26

Refactored to a thread-safe middleware

Refactored middleware to initiate validation as an object inside __call__, to avoid thread-safety issues described in #22