Revision 2197

Extensions/bboxdump/__init__.py: Fixed string left over from
	copying.

Extensions/bboxdump/bboxdump.py (bboxdump):
	Use layer.ShapeStore().AllShapes() to loop over shapes instead of
	xrange(layer.NumShapes()). Compile the bboxmessage from a list
	of formatted outputs (string.join) instead of appending to the
	message. Two progress bar dialogs to report progress on the sometimes
	lenghty processing.