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Copyright and License notice about XOOPS Cube Legacy 2.1.x
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Most of the files included in XOOPS Cube Legacy 2.1.x package are licensed under 
the "GNU PUBLIC LICENSE VERSION 2.0". (see /docs/GPL_V2.txt)

 Many of these files are delivered from 
  -XOOPS 2.0.9.3
    Copyright 2000 XOOPS Project
    http://www.xoops.org

 But the other files are newly added  or completely rewritten by XOOPS Cube Project.
    Copyright 2005 - 2007 XOOPS Cube Project
    http://xoopscube.sourceforge.net/

But some special files are licensed under the other license models those can co-exist with GPL V2 files.

*Licensed under the "Modified BSD License"  (see /docs/ModifiedBSD.txt)
  -XOOPS Cube Core Files (/html/core/*)  and some other files
     Copyright 2005 - 2007 XOOPS Cube Project
     http://xoopscube.sourceforge.net/
     (These files are developed by XOOPS Cube Project and are fully isolated from
     XOOPS files. Then we decide to change the license model from GPL V2 to Modified BSD.)

*Licensed under the "GNU LESSER GENERAL PUBLIC LICENSE Version 2.1"  (see /docs/LGPL_V2_1.txt)
  -Smarty (/html/class/smarty/*)
     Copyright (c) 2001-2005 New Digital Group, Inc. All rights reserved. 
     (http://smarty.php.net/)
  -PHPDownloader(/html/classs/class.tar.php, /html/classs/class.zipfile.php)
     Copyright (c) 2002 - www.ipunkt.biz (rok)
     (http://www.ipunkt.biz/service/php-downloader/index.html)
  -Snoopy(/html/classs/class.tar.php)
     Copyright (c): 1999-2000 ispi, all rights reserved
     (http://sourceforge.net/projects/snoopy/)
  -PHPMailer(/html/classs/mail/phpmailer/*)
     Copyright (C) 2001 - 2003  Brent R. Matzelle
     (http://phpmailer.sourceforge.net/)
  -eXtremePHP (/html/classs/xml/saxparser.php, /html/classs/xml/xmltaghandler.php)
     Copyright (C) 2001 - eXtremePHP Ken Egervari <ken@extremephp.org> Remi Michalski <remi@extremephp.org>
     http://www.extremephp.org/
  -The Coolest DHTML Calendar(/html/include/calendar.js, /html/include/calendar-blue.css)
     Copyright Mihai Bazon, 2002
     http://sourceforge.net/projects/jscalendar
  -NuSOAP modules/legacy/lib/nusoap/ 
     Copyright (c) 2002 NuSphere Corporation
     http://dietrich.ganx4.com/nusoap