separate out stream

src/agent.rs

@@ -1,5 +1,5 @@
-use cookie::{Cookie, CookieJar};
 use conn::ConnectionPool;
+use cookie::{Cookie, CookieJar};
 use error::Error;
 use response::{self, Response};
 use std::sync::Mutex;
@@ -8,7 +8,6 @@ use header::{add_header, get_all_headers, get_header, has_header, Header};
 
 // to get to share private fields
 include!("request.rs");
-include!("stream.rs");
 include!("unit.rs");
 
 /// Agents keep state between requests.