from preamble:

"Change Set:		RefStrmObsolCls-tk
Date:			19 September 2003
Author:			Ted Kaehler

SmartReferenceStrm is in charge of converting reading in old .pr files
and taking care of instances of classes that have changed shape.  It
also handles obsolete classes.  It gives the user a chance to name a new
class that old instances will be converted to.  
	In 2000 Bob Arning made major changes, but these were never extended to
converting the instances of obsolete classes.  This changeSet fixes
that."!
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