Merge pull request rust-postgres#57 from radford/unix-stream-now-pipe

UnixStream moved from std::io::next::unix to std::io::net::pipe

Author: sfackler

src/io.rs

@@ -1,7 +1,7 @@
 use openssl::ssl::SslStream;
 use std::io::net::ip::Port;
 use std::io::net::tcp::TcpStream;
-use std::io::net::unix::UnixStream;
+use std::io::net::pipe::UnixStream;
 use std::io::{Stream, IoResult};
 
 use {PostgresConnectParams,