Changes

REF: declare specific python types in cython (pull #928)
REF: Use cython string decoding (pull #929)
BUG: Return multiple authorities with pyproj.crs.CRS.list_authority (pull #943)
BUG: CRS CF conversions ensure lon_0 = north_pole_grid_longitude + 180 (issue #927)
BUG: CRS CF conversions ensure Pole rotation (netCDF CF convention) conversion works (issue #927)

Acknowledgements

Thanks to everyone who contributed to this release as well as to those who help with the distribution!