Add custom pagination test that covers case with custom object serializer class
Use explicit many=True for object_serializer instantiation in PaginationSerializer and add catch dummy 'many' kwarg on DefaultObjectSerializer
remove rogue print
Merge pull request #1826 from swistakm/fix/explicit-many-in-pagination-serializer-results

Use explicit `many=True` in PaginationSerializer on `object_serializer` instantiation