cosmetic pep8 compliant
Merge branch 'master' of github.com:novapost/django-generic-filters into 2-add_a_get_qs_filter_to_FilteredView

Conflicts:
	django_genericfilters/templatetags/updateurl.py
Implemented the qs_filter_fields for filtering on related models with r=Hobbestigrou fix #4
Merge pull request #5 from novapost/4-qs_filterfields_ListView

4 qs filterfields list view