Added very basic WebSocket support to json server

Former-commit-id: 5d62331eecdbd10287ba0520bbb06814bca0bca7

libsrc/jsonserver/JsonClientConnection.h

@@ -161,4 +161,7 @@ private:
 
 	/// The buffer used for reading data from the socket
 	QByteArray _receiveBuffer;
+	
+	/// used for WebSocket detection and connection handling
+	bool _webSocketHandshakeDone;
 };