6.0b -> 6.1

	another floating point buglet fixed in rmove (mostly bit on HPs)
	signal handler for SIGALRM needs to be reset in input.c'setRedrawFlag
		on most non BSD systems (fixed - mileage may vary on the 
		#ifdef)
	code run through Saber C, several nits cleaned up
	general cosmetic and not so cosmetic nits cleaned up


				dan
