properly handle the scenario in which document's method is passed to list_display
cleanup + dont show delete btn if can_delete is False
merge master into handle-cans
handle can_delete and can_edit properly
generic get_colum_value used in all backends
Merge pull request #28 from elasticsales/feature-callablecolumns

Support passing methods to list_display
dont pass admin_view to render_form
get_queryset in all backends
Merge pull request #29 from elasticsales/custom-queryset

Allow custom querysets.
Merge pull request #27 from elasticsales/handle-cans

Handle can_delete and can_edit properly