This option is true by default. If a player falls in void, it is teleported back to last saved checkpoint, or spawn if there's no checkpoint. You can add a message if you want x).

Also removed warnings of new skript versions

Added:
- configurable messages
- configurable /cp help
- /cp help command
- /cp delete/remove <player> (color)
- All colors of minecraft
Removed:
- sound on checkpoint defining
- french/english translation (to make translation for all other languages easyer using configurable messages)

An issue fixed with new colors and english language

Added 3 colors,
Removed a bug using other colors than black with english language
The creating sign command now works using english language
The black color no longer bug the whole skript
Finer code

Added /cp as alias

All signs on the server were checkpoint sign with the previous version!
I just fixed that big, big trouble and I expect to do not a error like that in the future