Added

• Tab completion on Spigot, BungeeCord and Velocity: online players, and the IDs from ids.yml for /ban and /mute. Only IDs the sender is allowed to use are suggested.
• Tab completion for /bansystem subcommands, IDs and punishment types.

Fixed

• Players with bansys.ban.bypass (e.g. operators with all permissions) were saved as banned but never kicked. The ban is now refused with "This player cannot be banned!".
• Player names are no longer case-sensitive on BungeeCord/Velocity and for offline players on Spigot.
• IDs from ids.yml are no longer case-sensitive.
• New message keys are added to existing messages files automatically.

Untested

This is a beta: the changes are built and unit-tested, but not yet tested in-game.