This manual may be reproduced in whole or in part, without fee, subject to the following restrictions:
The copyright notice above and this permission notice must be preserved complete on all complete or partial copies
Any translation or derived work must be approved by the author in writing before distribution.
If you distribute this work in part, instructions for obtaining the complete version of this manual must be included, and a means for obtaining a complete version provided.
Small portions may be reproduced as illustrations for reviews or quotes in other works without this permission notice if proper citation is given. Exceptions to these rules may be granted for academic purposes: Write to the author and ask. These restrictions are here to protect us as authors, not to restrict you as learners and educators. Any source code (aside from the SGML this document was written in) in this document is placed under the GNU General Public License, available via anonymous FTP from the GNU archive.
