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       <h3 style="text-align: center;">GNU GENERAL PUBLIC LICENSE</h3>
       <p style="text-align: center;">Version 3, 29 June 2007</p>
       <p>Copyright © 2007 Free Software Foundation, Inc.
        &lt;<a href="http://fsf.org/">http://fsf.org/</a>&gt;</p><p>
        Everyone is permitted to copy and distribute verbatim copies
        of this license document, but changing it is not allowed.</p>
       <h3><a name="preamble"></a>Preamble</h3>
       <p>The GNU General Public License is a free, copyleft license for
       software and other kinds of works.</p>
       <p>The licenses for most software and other practical works are designed
       to take away your freedom to share and change the works.  By contrast,
       the GNU General Public License is intended to guarantee your freedom to
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       <p>When we speak of free software, we are referring to freedom, not
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       <p>Developers that use the GNU GPL protect your rights with two steps:
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       <h3><a name="terms"></a>TERMS AND CONDITIONS</h3>
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       <h4><a name="section13"></a>13. Use with the GNU Affero General Public License.</h4>
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       <h4><a name="section14"></a>14. Revised Versions of this License.</h4>
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       be similar in spirit to the present version, but may differ in detail to
       address new problems or concerns.</p>
       <p>Each version is given a distinguishing version number.  If the
       Program specifies that a certain numbered version of the GNU General
       Public License “or any later version” applies to it, you have the
       option of following the terms and conditions either of that numbered
       version or of any later version published by the Free Software
       Foundation.  If the Program does not specify a version number of the
       GNU General Public License, you may choose any version ever published
       by the Free Software Foundation.</p>
       <p>If the Program specifies that a proxy can decide which future
       versions of the GNU General Public License can be used, that proxy's
       public statement of acceptance of a version permanently authorizes you
       to choose that version for the Program.</p>
       <p>Later license versions may give you additional or different
       permissions.  However, no additional obligations are imposed on any
       author or copyright holder as a result of your choosing to follow a
       later version.</p>
       <h4><a name="section15"></a>15. Disclaimer of Warranty.</h4>
       <p>THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
       APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
       HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY
       OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
       THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
       PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
       IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
       ALL NECESSARY SERVICING, REPAIR OR CORRECTION.</p>
       <h4><a name="section16"></a>16. Limitation of Liability.</h4>
       <p>IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
       WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
       THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
       GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
       USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
       DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
       PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
       EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
       SUCH DAMAGES.</p>
       <h4><a name="section17"></a>17. Interpretation of Sections 15 and 16.</h4>
       <p>If the disclaimer of warranty and limitation of liability provided
       above cannot be given local legal effect according to their terms,
       reviewing courts shall apply local law that most closely approximates
       an absolute waiver of all civil liability in connection with the
       Program, unless a warranty or assumption of liability accompanies a
       copy of the Program in return for a fee.</p>
       <p>END OF TERMS AND CONDITIONS</p>
       <h3><a name="howto"></a>How to Apply These Terms to Your New Programs</h3>
       <p>If you develop a new program, and you want it to be of the greatest
       possible use to the public, the best way to achieve this is to make it
       free software which everyone can redistribute and change under these terms.</p>
       <p>To do so, attach the following notices to the program.  It is safest
       to attach them to the start of each source file to most effectively
       state the exclusion of warranty; and each file should have at least
       the “copyright” line and a pointer to where the full notice is found.</p>
       <pre>    &lt;one line to give the program's name and a brief idea of what it does.&gt;
           Copyright (C) &lt;year&gt;  &lt;name of author&gt;
           This program is free software: you can redistribute it and/or modify
           it under the terms of the GNU General Public License as published by
           the Free Software Foundation, either version 3 of the License, or
           (at your option) any later version.
           This program is distributed in the hope that it will be useful,
           but WITHOUT ANY WARRANTY; without even the implied warranty of
           MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
           GNU General Public License for more details.
           You should have received a copy of the GNU General Public License
           along with this program.  If not, see &lt;http://www.gnu.org/licenses/&gt;.
       </pre>
       <p>Also add information on how to contact you by electronic and paper mail.</p>
       <p>If the program does terminal interaction, make it output a short
       notice like this when it starts in an interactive mode:</p>
       <pre>    &lt;program&gt;  Copyright (C) &lt;year&gt;  &lt;name of author&gt;
           This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
           This is free software, and you are welcome to redistribute it
           under certain conditions; type `show c' for details.
       </pre>
       <p>The hypothetical commands `show w' and `show c' should show the appropriate
       parts of the General Public License.  Of course, your program's commands
       might be different; for a GUI interface, you would use an “about box”.</p>
       <p>You should also get your employer (if you work as a programmer) or school,
       if any, to sign a “copyright disclaimer” for the program, if necessary.
       For more information on this, and how to apply and follow the GNU GPL, see
       &lt;<a href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>&gt;.</p>
       <p>The GNU General Public License does not permit incorporating your program
       into proprietary programs.  If your program is a subroutine library, you
       may consider it more useful to permit linking proprietary applications with
       the library.  If this is what you want to do, use the GNU Lesser General
       Public License instead of this License.  But first, please read
       &lt;<a href="http://www.gnu.org/philosophy/why-not-lgpl.html">http://www.gnu.org/philosophy/why-not-lgpl.html</a>&gt;.</p>
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