New features:
- 1 new config setting:
use_subregions: false
- 90% of player checks now work asynchronously
- New method called "check" which works only async and also when a player teleports it should make him join the region (haven't fully tested it on big player bases but it should work better than the other one)

Bugs fixed:
- When player restarts/stops and some players are inside a region and they get kicked it pops up an error, now it's fixed
- Subregions performance issues
- If you were using any method beside "optimized", "optimized" would still check for player movement