Copyright 1996 John Maloney and Mario Wolczko
Copyright 2003-2005 Tom Wu
Copyright 2005-2007 Sam Stephenson
Copyright 2006-2010 the V8 project authors

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raytrace.js contains code from the the Prototype JavaScript framework, version 1.5.0:

Prototype JavaScript framework, version 1.5.0
Copyright (c) 2005-2007 Sam Stephenson

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