- Session now accepts two new options: ClientName and Logger
- Port forwarder now supports a keepAlive parameter which when true,
instructs the PF to call the session's keepAlive method.
- Port forwarder uses a new traffic monitor to detect I/O traffic and
notify the session when applicable.
- The SSH command introduces a new debug flag which enables the command
to log to a new temporary file. The file path is printed to the user.
