- Allow hspatial 4.
- Updated some dependencies, notably hspatial 3, which entails htimeseries 6.
- Updated some dependencies, notably htimeseries 3. Python 3.7, 3.8 and 3.9 are now supported.
- Now uses version 5 of hts file (i.e. different time step notation).
- Fixed a bug where hts files were opened in the wrong mode, with inconsistent results.
- Fixed a spurious RuntimeWarning.
- Improved error message if the altitude or location is missing in an input file.
- Initial release