+ Replaced the SerialCommand library shipped with Clyde with
the (smaller) one from Stefan Rado.
+ Added ENABLE_MOUTH to "hide" all sound output code if ENABLE_MOUTH is
not defined; otherwise the compiled code is too big to be uploaded...
+ Replaced some floats with uint8 to reduce the size of the firmware: in
the fadeWhite and fadeAmbient functions; the second parameter is now a
integer value with larger values causing longer, slower fades.
+ Defined example alarm functions in the ClydeTimeAlarms.ino firmware
that allow Clyde to be used as a alarm clock.