Adding getRemoteAddress() functionality to EtchSocket

This method is based on CAPU and returns the IP address
of the remote peer the socket is connected to.

Change-Id: I6da81a8029f7fba79808c7ab883787fe05e6f996

git-svn-id: https://svn.apache.org/repos/asf/etch/trunk@1548399 13f79535-47bb-0310-9956-ffa450edef68
Enhancement of logging in TcpTransport

The logging in TcpConnection and TcpListener is now more meaningful
and allows a better understanding of the log traces during postmortem
debugging.

Change-Id: I5f999920c5aa9c5acc73f2abbebf23e9aa5e7c06

git-svn-id: https://svn.apache.org/repos/asf/etch/trunk@1548400 13f79535-47bb-0310-9956-ffa450edef68