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     THE ZLIB/LIBPNG LICENSE       (copy from opensource.org)
 
    Copyright (c) 2004 Guido Draheim
 
    This software is provided 'as-is', without any express
       or implied warranty. In no event will the authors be
       held liable for any damages arising from the use of this
       software.
 
    Permission is granted to anyone to use this software for
       any purpose, including commercial applications, and to
       alter it and redistribute it freely, subject to the
       following restrictions:
 
	  1. The origin of this software must not be
    	  misrepresented; you must not claim that you
    	  wrote the original software. If you use this
    	  software in a product, an acknowledgment in
    	  the product documentation would be
    	  appreciated but is not required.
 
	  2. Altered source versions must be plainly
    	  marked as such, and must not be
    	  misrepresented as being the original
    	  software.
 
    	  3. This notice may not be removed or altered
    	  from any source distribution.
 
 
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