Added downloadcache to tox config
Updated tox config to newest Django versions
Globally renamed 'assign' method/function to 'assign_perm'. Updated '.gitingore' to ignore WebDAV cache files.
Merge pull request #118 from danielsokolowski/renaming_assign

Globally renamed 'assign' method/function to 'assign_perm'.
Added test for deprecation warning when calling assign shortcut
Added user_can_access_owned_by_group_objects_only option to GuardedModelAdmin. Fixes #42
Updated tox.ini to the latest Django versions
Merge pull request #121 from fhahn/latest-django-versions

Updated tox.ini to the latest Django versions