Changes made:
 - instead of having a unique stream button, now we have 2:
       - create stream: start an outputStream in one side, what should provoke the reception of an input stream at the other side.
	- tx: button that transmit the number 1.
The idea is having separate the phases of creating the streams and the transmition of information.

Although now the events of the input stream are listened, no data is arriving.