Cleaned up how hardware_controller.CheckThermostats is called.
Sensors update every 10 seconds (instead of every 5 seconds).
Added testing_without_hardware option to allow Celery tasks to run on non-Raspberry Pi machines.
testing_without_hardware setting imported from settings.py instead of reading settings.ini twice.
pimostat.js renamed to index.js as a template.
Moved broker_url and result_backend from amqp:// to redis://.  Redis is lighter-weight, which is better suited to the 'Pi.
Added [pimostat] section in settings.ini.example.  Added sensor_update_frequency field.
Thermostat properties on page update immediately after they're updated.