Implement Jay option #2:
Implement Jay option #2:

If plabmetrics fails and it has been less than two intervals (interval==5 min)
since the stats file was modified, then send a message

If plabmetrics succeeds and it has been more than two intervals since the
last mod, send a "back in business" message.

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome