Pin django-filter - fixes #2495 and #2490
Pin django-filter - fixes #2495 and #2490

safwanrahman/readthedocs.org,rtfd/readthedocs.org,rtfd/readthedocs.org,pombredanne/readthedocs.org,pombredanne/readthedocs.org,tddv/readthedocs.org,davidfischer/readthedocs.org,tddv/readthedocs.org,rtfd/readthedocs.org,safwanrahman/readthedocs.org,pombredanne/readthedocs.org,rtfd/readthedocs.org,davidfischer/readthedocs.org,safwanrahman/readthedocs.org,tddv/readthedocs.org,davidfischer/readthedocs.org,safwanrahman/readthedocs.org,davidfischer/readthedocs.org