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84
85<h1><a class="anchor" id="license">GNU General Public License </a></h1><div class="fragment"><pre class="fragment">                    GNU GENERAL PUBLIC LICENSE
86                       Version 3, 29 June 2007
87
88 Copyright (C) 2007 Free Software Foundation, Inc. &lt;http://fsf.org/&gt;
89 Everyone is permitted to copy and distribute verbatim copies
90 of this license document, but changing it is not allowed.
91
92                            Preamble
93
94  The GNU General Public License is a free, copyleft license for
95software and other kinds of works.
96
97  The licenses for most software and other practical works are designed
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154
155                       TERMS AND CONDITIONS
156
157  0. Definitions.
158
159  "This License" refers to version 3 of the GNU General Public License.
160
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429  "Additional permissions" are terms that supplement the terms of this
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491  8. Termination.
492
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519  9. Acceptance Not Required for Having Copies.
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555  11. Patents.
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557  A "contributor" is a copyright holder who authorizes use under this
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569this License.
570
571  Each contributor grants you a non-exclusive, worldwide, royalty-free
572patent license under the contributor's essential patent claims, to
573make, use, sell, offer for sale, import and otherwise run, modify and
574propagate the contents of its contributor version.
575
576  In the following three paragraphs, a "patent license" is any express
577agreement or commitment, however denominated, not to enforce a patent
578(such as an express permission to practice a patent or covenant not to
579sue for patent infringement).  To "grant" such a patent license to a
580party means to make such an agreement or commitment not to enforce a
581patent against the party.
582
583  If you convey a covered work, knowingly relying on a patent license,
584and the Corresponding Source of the work is not available for anyone
585to copy, free of charge and under the terms of this License, through a
586publicly available network server or other readily accessible means,
587then you must either (1) cause the Corresponding Source to be so
588available, or (2) arrange to deprive yourself of the benefit of the
589patent license for this particular work, or (3) arrange, in a manner
590consistent with the requirements of this License, to extend the patent
591license to downstream recipients.  "Knowingly relying" means you have
592actual knowledge that, but for the patent license, your conveying the
593covered work in a country, or your recipient's use of the covered work
594in a country, would infringe one or more identifiable patents in that
595country that you have reason to believe are valid.
596
597  If, pursuant to or in connection with a single transaction or
598arrangement, you convey, or propagate by procuring conveyance of, a
599covered work, and grant a patent license to some of the parties
600receiving the covered work authorizing them to use, propagate, modify
601or convey a specific copy of the covered work, then the patent license
602you grant is automatically extended to all recipients of the covered
603work and works based on it.
604
605  A patent license is "discriminatory" if it does not include within
606the scope of its coverage, prohibits the exercise of, or is
607conditioned on the non-exercise of one or more of the rights that are
608specifically granted under this License.  You may not convey a covered
609work if you are a party to an arrangement with a third party that is
610in the business of distributing software, under which you make payment
611to the third party based on the extent of your activity of conveying
612the work, and under which the third party grants, to any of the
613parties who would receive the covered work from you, a discriminatory
614patent license (a) in connection with copies of the covered work
615conveyed by you (or copies made from those copies), or (b) primarily
616for and in connection with specific products or compilations that
617contain the covered work, unless you entered into that arrangement,
618or that patent license was granted, prior to 28 March 2007.
619
620  Nothing in this License shall be construed as excluding or limiting
621any implied license or other defenses to infringement that may
622otherwise be available to you under applicable patent law.
623
624  12. No Surrender of Others' Freedom.
625
626  If conditions are imposed on you (whether by court order, agreement or
627otherwise) that contradict the conditions of this License, they do not
628excuse you from the conditions of this License.  If you cannot convey a
629covered work so as to satisfy simultaneously your obligations under this
630License and any other pertinent obligations, then as a consequence you may
631not convey it at all.  For example, if you agree to terms that obligate you
632to collect a royalty for further conveying from those to whom you convey
633the Program, the only way you could satisfy both those terms and this
634License would be to refrain entirely from conveying the Program.
635
636  13. Use with the GNU Affero General Public License.
637
638  Notwithstanding any other provision of this License, you have
639permission to link or combine any covered work with a work licensed
640under version 3 of the GNU Affero General Public License into a single
641combined work, and to convey the resulting work.  The terms of this
642License will continue to apply to the part which is the covered work,
643but the special requirements of the GNU Affero General Public License,
644section 13, concerning interaction through a network will apply to the
645combination as such.
646
647  14. Revised Versions of this License.
648
649  The Free Software Foundation may publish revised and/or new versions of
650the GNU General Public License from time to time.  Such new versions will
651be similar in spirit to the present version, but may differ in detail to
652address new problems or concerns.
653
654  Each version is given a distinguishing version number.  If the
655Program specifies that a certain numbered version of the GNU General
656Public License "or any later version" applies to it, you have the
657option of following the terms and conditions either of that numbered
658version or of any later version published by the Free Software
659Foundation.  If the Program does not specify a version number of the
660GNU General Public License, you may choose any version ever published
661by the Free Software Foundation.
662
663  If the Program specifies that a proxy can decide which future
664versions of the GNU General Public License can be used, that proxy's
665public statement of acceptance of a version permanently authorizes you
666to choose that version for the Program.
667
668  Later license versions may give you additional or different
669permissions.  However, no additional obligations are imposed on any
670author or copyright holder as a result of your choosing to follow a
671later version.
672
673  15. Disclaimer of Warranty.
674
675  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
676APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
677HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
678OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
679THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
680PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
681IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
682ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
683
684  16. Limitation of Liability.
685
686  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
687WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
688THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
689GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
690USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
691DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
692PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
693EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
694SUCH DAMAGES.
695
696  17. Interpretation of Sections 15 and 16.
697
698  If the disclaimer of warranty and limitation of liability provided
699above cannot be given local legal effect according to their terms,
700reviewing courts shall apply local law that most closely approximates
701an absolute waiver of all civil liability in connection with the
702Program, unless a warranty or assumption of liability accompanies a
703copy of the Program in return for a fee.
704
705                     END OF TERMS AND CONDITIONS
706
707            How to Apply These Terms to Your New Programs
708
709  If you develop a new program, and you want it to be of the greatest
710possible use to the public, the best way to achieve this is to make it
711free software which everyone can redistribute and change under these terms.
712
713  To do so, attach the following notices to the program.  It is safest
714to attach them to the start of each source file to most effectively
715state the exclusion of warranty; and each file should have at least
716the "copyright" line and a pointer to where the full notice is found.
717
718    &lt;one line to give the program's name and a brief idea of what it does.&gt;
719    Copyright (C) &lt;year&gt;  &lt;name of author&gt;
720
721    This program is free software: you can redistribute it and/or modify
722    it under the terms of the GNU General Public License as published by
723    the Free Software Foundation, either version 3 of the License, or
724    (at your option) any later version.
725
726    This program is distributed in the hope that it will be useful,
727    but WITHOUT ANY WARRANTY; without even the implied warranty of
728    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
729    GNU General Public License for more details.
730
731    You should have received a copy of the GNU General Public License
732    along with this program.  If not, see &lt;http://www.gnu.org/licenses/&gt;.
733
734Also add information on how to contact you by electronic and paper mail.
735
736  If the program does terminal interaction, make it output a short
737notice like this when it starts in an interactive mode:
738
739    &lt;program&gt;  Copyright (C) &lt;year&gt;  &lt;name of author&gt;
740    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
741    This is free software, and you are welcome to redistribute it
742    under certain conditions; type `show c' for details.
743
744The hypothetical commands `show w' and `show c' should show the appropriate
745parts of the General Public License.  Of course, your program's commands
746might be different; for a GUI interface, you would use an "about box".
747
748  You should also get your employer (if you work as a programmer) or school,
749if any, to sign a "copyright disclaimer" for the program, if necessary.
750For more information on this, and how to apply and follow the GNU GPL, see
751&lt;http://www.gnu.org/licenses/&gt;.
752
753  The GNU General Public License does not permit incorporating your program
754into proprietary programs.  If your program is a subroutine library, you
755may consider it more useful to permit linking proprietary applications with
756the library.  If this is what you want to do, use the GNU Lesser General
757Public License instead of this License.  But first, please read
758&lt;http://www.gnu.org/philosophy/why-not-lgpl.html&gt;.
759</pre></div> </div>
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