Arduino Alarm project - case corrections

	Porting from Windows to Linux, I discovered I had used the wrong
	case in a few include file names.
Arduino/Alarm ... dealt with deprecated PROGMEM types

	The new version avr/pgmspace.h defines some more rational types
	for storing data in code space, and they have (quite reasonably)
	deprecated the old code-space types.  Modified code to work with
	new libraries.