Add copy implementations

Keep the compiler happy - need to figure out where the \U00ABCD12 and
\uABCD warnings are coming from

Author: cyderize

src/ws/client.rs

@@ -112,4 +112,6 @@ impl<S: Stream + Clone> Clone for WebSocketClient<S> {
 pub enum WebSocketClientMode {
 	RemoteClient,
 	RemoteServer,
-}
+}
+
+impl Copy for WebSocketClientMode { }

src/ws/handshake/version.rs

@@ -14,6 +14,8 @@ pub struct HttpVersion {
 	pub version_minor: Option<u8>,
 }
 
+impl Copy for HttpVersion { }
+
 impl HttpVersion {
 	/// Create a new HttpVersion from major and minor version numbers.
 	pub fn new(version_major: u8, version_minor: Option<u8>) -> HttpVersion {