change category creative_commons (3581) -> meta
change category cc0 (105) -> meta
change category cc-by (84) -> meta
change category cc-by-nd (3) -> meta
change category cc-by-nc-nd (1907) -> meta
change category cc-by-nc (776) -> meta
change category cc-by-nc-sa (358) -> meta
change category cc-by-sa (274) -> meta
change category public_domain (881) -> meta
change category license_info (259) -> meta