Made sure list filters and other options are never duplicated. Fixes #14

 v2.6.0

Added support for models in sub-folders. Fixes: #13 v2.5.0

Updated package for newer Django (3.2, 4.0, 4.1 and 4.2) and Python v…

…ersions (3.7 up to 3.11) v2.4.0

Updated package for newer Django and Python versions v2.3.0

updated django-utils2 to fix #11 v2.2.2

updated to newer django versions in tox and travis

added automatic list filters where useful

updated to support django 1.11 and django 2.0

Added full django 1.8 and above support

Enabled django 1.9 support