2005-05-20  Shaohua Fu  <shfu@nfnal.gov>
	* MaterialGeometer.cpp :
	  Added a rcp option to swich from RunIIa to RunIIb beampipe.
	  Also modified the corresponding rcp/MaterialGeometry.rcp

2004-03-25  scott snyder  <snyder@fnal.gov>

	* MaterialGeometry.hpp (XMGNotImplemented ctor): Pass arg by const
	reference instead of by value.

Tue Jun 22 23:15:53 1999    <hobbs@SBLCJH>

	* MaterialGeometer.hpp,.cpp: Add cps lead and accessors

Fri Sep 18 10:51:49 1998  Harry Melanson  <melanson@d0chb.fnal.gov>

	* MaterialGeometry.hpp (build): 
	Rename refresh() method to build()

	* MaterialGeometry.cpp (build): 
	Rename refresh() method to build()