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# Copyright (C) 2006 Luke Howard
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# Copyright (C) 2006 West Consulting
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# Copyright (C) 2006, 2007, 2008, 2009 Arthur de Jong
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# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Arthur de Jong
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public