Added djadmin2.filters module.
Added djadmin2.filters module.

This module is handling list filter creation by inspecting the model of
supplied queryset. Contains default mapping for field type filters to
our custom form widgets that are rendering links instead of inputs.

hnakamur/django-admin2,yarbelk/django-admin2,andrewsmedina/django-admin2,pydanny/django-admin2,hnakamur/django-admin2,yarbelk/django-admin2,andrewsmedina/django-admin2,andrewsmedina/django-admin2,pydanny/django-admin2