#113 Add dependency
#113 Add dependency
#113 - Basic registration of device
#113 - Power on, set temp.
After instantiation, trigger the callback with the deviceID.
Additionally, add error logging for failed db queries
Fetch, persist tokens
Remove error handler for the moment, it's wrongly implemented for err === null anyway
Implement setup() and invoke it on discovery
Remove debugging code, and set the status to 'present' or 'reset'. Additionally, set bound on supported temperature (celcius)
sunday edits

1. short-circuit updates on round-trip to wink api
2. add motive distance (should be client-derived, but really useful)
3. oneshot in fahrenheit (for now)
better smoke detector support
add displayUnits to place actor
add initial support for yocto-4-20mA-Rx
new svgs - sensor-co + sensor-no2 #35
normalize all validate_observe/observe/perform functions

and initial (but incomplete) support for the roomba
distance is Km not m
better use of customary units in oneshot
change superscript to subscript #35
remove irobot/floor from CHANGELOG

(it won't be ready for the 1.4 release)
meters or feet