[time-nuts] Trimble Thunderbolt no longer determines the correct date

[Leigh L. Klotz, Jr WA5ZNU]

Based on Mark Sims updates to Heather v5.0 I've updated Ralph Smith's 
NTP daemon to handle the rollover.  I haven't updated the gpsd.

https://wa5znu.org/2011/08/tbolt/

It's not as ambitious as Mark's update; this one doesn't read system 
time so it will have to be recompiled again in about 20 years.
I took Mark's Julian and Gregorian date calculations as is ;-)

This is running now as well as it ever did.  Thanks for the great community.

Leigh/WA5ZNU