Support for forced hosts

[Patbox]

Just a support for bungee forced hosts.
It should look like this:

• Player connects to fb.example.net (let's say Freebuild server).
• Redirect the unlogged player to the selected login server (with authme).
• After login, redirect player to freebuild server.

[d-513]

I might be wrong but I think you could just install authme on the freebuild server and enable autologin in authmebungee.