* java/awt/GridBagLayout.java
	(GridBagLayout): New private field, internalcomptable.
	(lookupInternalConstraints): New method.
	(ArrangeGrid): Use components' MINSIZE. Use internalcomptable.
	(GetLayoutInfo): Reimplement.
	(calcCellSizes): Ignore rows/columns with size 0.

From-SVN: r77612