* (C) Henry Minsky (hqm@alum.mit.edu) 1991-2009
 *
 * This software library is licensed under terms of the GNU GENERAL
 * PUBLIC LICENSE. [See file gpl.txt]
 * 
 * Commercial licensing is available under a separate license, please
 * contact author for details.
 *
 * Latest source code and other info at http://rscode.sourceforge.net