Return a websocket connection

Application.java:wsInterface()

// Websocket interface
public static WebSocket<String> wsInterface(){
    return new WebSocket<String>(){
            
        // called when websocket handshake is done
        public void onReady(WebSocket.In<String> in, WebSocket.Out<String> out){
                SimpleChat.start(in, out);
        }
    };   
}