FIXED:
- Fixed a bug where creating a room or grading a player would throw an error.
- Fixed a bug where ending the class with more than 1 player left would throw an error and not let the players leave the class.
- Fixed an issue where players could execute /rh even if it was not allowed

ADDED:
- Added the option to enable/disable sitting on chairs. If you have another chair plugin, you should disable this one!
- Added the option to enable/disable multiple executions of /rh by one player. Note: enabling this can cause your players to just spam the chat!

CHANGED:
- Nothing