OK,
I posted an update to GitHub.
The problem had to do with the gpio_pins.py file not loading properly. The temperature reading is platform dependent and the gpio_pins file is where the platform (pi/beagle bone black) is determined. At first I thought is was a minor inconvenience but when the temp reading was zero, no zones could be turned on either.
There were also some changes to the system updater plugin and I would recommend doing a manual software update at this point to avoid some strange problems that result from the old updater.
Dan