All software in this distribution comes under the following copyright notice: Copyright (c) 1998-2009 by Imperial College of Science, Technology and Medicine Permission to use, copy, modify, and distribute this software and its documentation for any non-commercial purpose and without fee is hereby granted, provided that this copyright notice appears in all copies. The library cannot be used directly or indirectly for any commercial application without a licence from Imperial College. Neither Imperial College nor Lindsay Errington make representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty.