Enhancement: add a "--verbose" mode if possible

[lgoldstein]

The mode should display to stdout/stderr (and/or syslog if the -s option was invoked) more detailed information about the inner workings - e.g., "Connection established with client w.x.y.z", "Start handshake with w.x.y.z", "Handshake successful with w.x.y.z" - perhaps even the SSL handshake details (ciphers, key exchange, etc.).. For a really flexible logging configuration perhaps something like SSH's "-v", "-vv", "-vvv" configuration will do.