New Log Format

This impliments the new TIC DAQ log format agreed upon on 20130521.  The
output format is:

<ISO8601 date> <TIC measurement> <UNIX time> <nanoseconds after >

where date, UNIX time, and nanoseconds are the time measured on the system
running the DAQ software.  <nanoseconds> is the number nanoseconds after
the latest one second rollover.