Reset the data windows when the sensor is turned on.
create lighted button class
Add fritzing for booze-o-meter
add lighted button and update() to StateContext
Add context & name() to State
take out 'standalone' and improve enter_state()
Get tests working and passing.
fix bugs in queue constructor
booze_o_meter class clean up
start implementing states
good start on state machine
Add TimedState class.

Make ReadyState a timed State