NAME
	SortGList -- Sort the current gel list, ordering its y,x coordinates.

   SYNOPSIS
	SortGList(rp)
	          A1

	void SortGList(struct  RastPort *);

   FUNCTION
	Sorts the current gel list according to the gels' y,x coordinates.
	This sorting is essential before calls to  DrawGList or  DoCollision.

   INPUTS
	rp = pointer to the  RastPort structure containing the  GelsInfo

   RESULT

   BUGS

   SEE ALSO
	 InitGels()   DoCollision()   DrawGList()   sc:include/graphics/rastport.h