Merge from vendor branch TNF:

Merge from vendor branch TNF:
Initial import of synce-serial-0.9.1:

Synce-serial is part of the SynCE project.

This module contains helper scripts for setting up a serial connection
for use with SynCE. They are basically wrappers around pppd:

synce-serial-config  - Use this to select serial port and IP adresses
synce-serial-start   - Use this to start connection
synce-serial-abort   - Use this to abort a connection