Using the Thunderbolt GPS-DO as a Stratum 1 NTP reference

Ralph Smith did a good integration for BSD NTP. I patched it and wrote some startup and monitoring scripts for it for Ubuntu.

I run Heather under Wine with some flags and make it talk to the server; that cuts way down on the CPU time that LH would otherwise use in its tight loops.

The script monitors ntpq to see if the GPS is being used.

Updates for 2011-07 1024-week rollover event