Whenever you ask for a sibling instance of a Player in an EToy, the 
Players of the new object is an instance of the original Player 
class, instead of having a new class.

When you duplicate a morph the holds a set of siblings, there was bug 
that made the new objects not be siblings.  This fixes the bug.  Alan 
wants this fixed for the cells of a Tic-Tac-Toe game.
	To test, make a playfield with a blob in it.  Make a sibling 
of the blob.  Tell the playfield to 'make sibling instance'.  All 
four blobs will remain siblings.
	In addition, the production of a sibling instance is now cleaner.

Change Set:		Sibling-dup-tk
Date:			11 March 2003
Author:			Ted Kaehler

(Tested in a standard 3.6alpha)
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