[add] Animation class
[enh] Stabilisation and features + async controller
[enh] send sensor names with their values
[fix] Remove useless method
[fix] protocol adaptation. To ask current delay, send delay of zero
[ref] Longer test + new protocol adapt
[fix] wrong signature
[dbg] Try to set pin as output
[fix] Useless analogWrite
[add] Bell management
[enh] Add a readonly script
[fix] Doorbell
[fix] DRY
[fix] Remove useless serial.write
[add] possibility to use tone() (multiplies value by 4)
[enh] Play a tone when someone press the bell
[enh] Play a tone when someone press the bell
[merge] Don't amend after push
[enh] Also flash leds during ringtone
[add] Daemon for real world