1.1.1

• Extracted _s2_face_uv_to_xyz() to a separate function
• Added documentation
• Updated dependencies
• Removed Python 3.5 support

1.1.0

• Added cell_id_to_token() and token_to_cell_id()
• Added cell_id_to_level() and token_to_level()
• Added checks for invalid face bits when decoding a cell ID
• Tidied more of the comments and README
• Compressed the S2 reference test suite files to allow more test points in a similar file size

1.0.0

Initial release of s2cell