Rename control::ws module to control::listener.

client/src/control/mod.rs

@@ -1,7 +1,7 @@
+mod listener;
 mod request;
 mod response;
-mod ws;
 
+pub use self::listener::Listener;
 pub use self::request::*;
 pub use self::response::*;
-pub use self::ws::Listener;