Rename proto::message to proto::server.

src/proto/mod.rs

@@ -1,2 +1,2 @@
 pub mod connection;
-pub mod message;
+pub mod server;

src/server.rs

@@ -2,7 +2,7 @@ use std::io;
 use std::net::Ipv4Addr;
 
 use proto::connection::{Packet, Peer};
-use proto::message::{
+use proto::server::{
     LoginRequest,
     LoginResponse,
     ServerRequest,