Arena:
- Add new System for arena (Dependency: FAWE)
- Add new Command (/arena setpoint) for paste schematic.
- Add new Command (/arena setschem <schemName>) to set the name of the schematic to paste.

Kits:
- Add new command (/kit edit <kit>)
- Rework kit system.
- Fix permission kit

ADD DEPENDENCY
- FastAsyncWorldEdit

And minor fixes!!