CHANGES:
	
    21-Sep-92
	Renamed all global widget type and structure names to begin 
	with [Xx]fwf.
	
	The width/height/radius initialization logic has been cleaned
	up some; it now checks the radius against the arrow dimensions.

	RheostatT now has command-line options.

	*fillArrow is now OFF by default.  It was just too slow on
	some servers.

	Uses the '#include <Xfwf/...>' convention.  
	XDrawArrow() is now XfwfDrawArrow(), and is public.

    25-Jun-1993 
	BUGFIX: (Rheostat.c) calculate_position was ignoring minimumValue.
	(thanks to James R. R. Service for this fix)

    07-Jul-1993
	Rheostat.man didn't format right using groff (probably
	didn't work with nroff either.)

    15-Jul-1993
	(Rheostat.c r1.5)
	In Set() action, peg the indicator to one side if the value
	is out of range instead of just freezing.

