localities.json is derived from the GeoNames postal code data for Romania
(https://download.geonames.org/export/zip/RO.zip), licensed under the Creative
Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/).

Changes: localities grouped by county, a postcode kept only for a locality with
exactly one, Bucharest post offices replaced by the six sectors, ş and ţ written
with a comma below. The data comes as is, without any warranty of accuracy.
