Add message to indicate waiting on service when building robot class
Correct problems with robot state polling
Remove unused PIL import from careobot, move PIL import within the image function for robot.  Prevents errors on machines missing PIL when it's not needed
Prevent ZWave connection failures from flodding the console
Filter values to 1 and 0 instead of True/False (status can remain true/false)
Handle common exceptions
Merge pull request #17 from uh-nmb/master

Code hardening and corrections to cob state polling