RowCol	(SuperClass: XfwfBoard)
	The RowCol widget aligns all its children in rows and columns,
	in the order in which they were created. They are aligned on a
	grid that is coarse enough to hold the largest of the
	children.

History
2.1	(28 Jun '93) Added resource ShrinkToFit
2.2	(5 Jul '93) Removed spacing resource (children of rel_width =
	1.0 didn't fit because of it; besides, the same effect can be
	achieved by setting frameOffset on the children)
2.3	(3 Nov '93) Bug fix in layout: division by 0 if 0 children
