- Updated documentation to clarify that https://xronos.ch now uses ISO two-character codes for countries.
- chron_data() now uses countrycode to attempt to interpret
country arguments that are not country codes.
- Fixed a bug where nested responses from the XRONOS API (e.g. ‘typochronological units’) could not be collated into a table #5
- Allowed for specifying an alternative API URL endpoint in xronos_request() (primarily for development & testing purposes)