Add Celluloid to Gemfile
SensorRegistrar
WeightSensor as a Celluloid actor
Use Celluloid WeightSensor actor and requirements file
Use Celluloid for threading
Clean up SetpointUpdater
Use client as module & don't pass fridge as arg
attr_accessor pins
Use Celluloid::actor#every instead of loops
Use Celluloid#every correctly
Simplify actor setup
Parse sensor values correctly for each sensor
Rescue DeadActorError with sleep to allow respawn
Take first meatshot immediately