change category creative_commons (3901) -> meta
change category cc0 (121) -> meta
change category cc-by (143) -> meta
change category cc-by-nd (3) -> meta
change category cc-by-nc-nd (2030) -> meta
change category cc-by-nc (849) -> meta
change category cc-by-nc-sa (394) -> meta
change category cc-by-sa (286) -> meta
change category public_domain (1257) -> meta
change category license_info (248) -> meta