Version 0.6.0

Multiprocess: no more limitation on the number of races
Improved documentation

Version 0.5.0

Changed default for steer discretization steps (7)
(breaking) Use multi-discrete for item types

Version 0.4.5

center_path_distance is now relative (to indicate left/right of the path)
center_path gives the vector to the center of the track
Changed the reward to gives some importance to the final ranking
Better regression tests

Version 0.4.2

Fix in formula for center_path_distance

Version 0.4.0

Multi-agent environment
Use polar representation instead of coordinates (except for the "full" environment)
Only two base environments (multi/mono-agent) and wrappers for the rest: this allows races to be organized with different set of wrappers (depending on the agent)
Added center_path_distance
Allow to change player name and camera mode
breaking: Agent spec is used for mono-kart environments