change category creative_commons (3981) -> meta
change category cc0 (126) -> meta
change category cc-by (143) -> meta
change category cc-by-nd (3) -> meta
change category cc-by-nc-nd (2084) -> meta
change category cc-by-nc (853) -> meta
change category cc-by-nc-sa (404) -> meta
change category cc-by-sa (291) -> meta
change category public_domain (1324) -> meta
change category license_info (251) -> meta