IPv6 Support

[Trikolon]

The plugin doesn't seem to support IPv6 connections. I've just tested this by connecting to a BungeeCord instance via IPv6:

[Trikolon]

Gained some more insight:
The error occurs because of this check for valid ip: https://github.com/alphartdev/BungeeAdminTools/blob/master/src/main/java/fr/Alphart/BAT/Modules/Ban/Ban.java#L216

Since the regex for the IP check only matches IPv4 it will treat IPv6 adresses as "players" and will send those to the Mojang API. The API returns a null pointer, hence the exception.

[yannicklamprecht]

@Trikolon You mean REGEX recognises only ipv4 ? So v6 is detected as a player.