Fixed a typo which caused day/night temp being displayed on the wrong sides.
Small change on inline if to follow code convention.
Added a function to get the current temp directly from the sensor.
Now the current temp is calculated dynamically using Thermostate::proc() calls.
Now action_button() returns the bitmap of pushed buttons.
Improved responsiveness by using a different delay wether a button has been pushed or not.
Curent temp now initialized to 0 (NaN is creepy).
Removed useless parameter "day" from constructor.
Now setup() completely resets display.
Gathered temperature on each round is now stored on a cumulative variable instead of an array.
Gathered temperature on each round is now stored on a cumulative variable instead of an array.