- the shard's ip sent to the client via the login server is currently hardcoded in config/config.go
- no packets other than P_CL2FE_REQ_PC_ENTER and P_CL2FE_REQ_PC_LOADING_COMPLETE are supported via the shard server
- moved Peer from the server package to the protocol package, it was also renamed to CNPeer as most fusionfall specific constants in the client use the 'CN' prefix.
- protocol: added GenSerialKey() which securely generates an EnterSerialKey
- login server accepts a shard via LoginServer.AddShard()
- login server will pass LoginMetaData to the selected shard via ShardServer.QueueLogin()
- misc. refactoring