Update 1.16

- Optimization in player connection
- Bad account and Antibot are not forced disabled anymore (a warning message is shown)
- Optimization in max IP checker
- Better file writing/SQL request for player data
- Post login event is now in async for Bungeecord and Velocity (fix performance issues during login)
- Change in config file to disable VPN check more easily. Comments in config file are more concise

/ ! \ Config file changed. Please take these changes into consideration!
You can see the new default config file in the plugin description.

Updated keys:
kick => vpn.kick
ban => vpn.ban
notify => vpn.notify
ban-cmd => vpn.ban-cmd