Version 0.1.2

This is a patch release of skcosmo. It contains only bug fixes and small improvements, all users are encouraged to update.

• Allow to use a relative score threshold, which can detect identical points passed to FPS (#129)
• Update pi score less often in CUR (#133)
• Allowed saving more classes with pickle (#135)
• Allow selectors to select all available points (#137)
• other small bugfixes