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1                    GNU GENERAL PUBLIC LICENSE
2                       Version 3, 29 June 2007
3
4 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
5 Everyone is permitted to copy and distribute verbatim copies
6 of this license document, but changing it is not allowed.
7
8                            Preamble
9
10  The GNU General Public License is a free, copyleft license for
11software and other kinds of works.
12
13  The licenses for most software and other practical works are designed
14to take away your freedom to share and change the works.  By contrast,
15the GNU General Public License is intended to guarantee your freedom to
16share and change all versions of a program--to make sure it remains free
17software for all its users.  We, the Free Software Foundation, use the
18GNU General Public License for most of our software; it applies also to
19any other work released this way by its authors.  You can apply it to
21
22  When we speak of free software, we are referring to freedom, not
23price.  Our General Public Licenses are designed to make sure that you
24have the freedom to distribute copies of free software (and charge for
25them if you wish), that you receive source code or can get it if you
26want it, that you can change the software or use pieces of it in new
27free programs, and that you know you can do these things.
28
29  To protect your rights, we need to prevent others from denying you
30these rights or asking you to surrender the rights.  Therefore, you have
31certain responsibilities if you distribute copies of the software, or if
32you modify it: responsibilities to respect the freedom of others.
33
34  For example, if you distribute copies of such a program, whether
35gratis or for a fee, you must pass on to the recipients the same
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39
40  Developers that use the GNU GPL protect your rights with two steps:
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44  For the developers' and authors' protection, the GPL clearly explains
45that there is no warranty for this free software.  For both users' and
46authors' sake, the GPL requires that modified versions be marked as
47changed, so that their problems will not be attributed erroneously to
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50  Some devices are designed to deny users access to install or run
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60
61  Finally, every program is threatened constantly by software patents.
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68  The precise terms and conditions for copying, distribution and
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71                       TERMS AND CONDITIONS
72
73  0. Definitions.
74
75  "This License" refers to version 3 of the GNU General Public License.
76
77  "Copyright" also means copyright-like laws that apply to other kinds of
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343  7. Additional Terms.
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345  "Additional permissions" are terms that supplement the terms of this
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407  8. Termination.
408
409  You may not propagate or modify a covered work except as expressly
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435  9. Acceptance Not Required for Having Copies.
436
437  You are not required to accept this License in order to receive or
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446  10. Automatic Licensing of Downstream Recipients.
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453  An "entity transaction" is a transaction transferring control of an
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471  11. Patents.
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473  A "contributor" is a copyright holder who authorizes use under this
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477  A contributor's "essential patent claims" are all patent claims
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521  A patent license is "discriminatory" if it does not include within
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535
536  Nothing in this License shall be construed as excluding or limiting
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539
540  12. No Surrender of Others' Freedom.
541
542  If conditions are imposed on you (whether by court order, agreement or
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551
552  13. Use with the GNU Affero General Public License.
553
554  Notwithstanding any other provision of this License, you have
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562
563  14. Revised Versions of this License.
564
565  The Free Software Foundation may publish revised and/or new versions of
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570  Each version is given a distinguishing version number.  If the
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579  If the Program specifies that a proxy can decide which future
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584  Later license versions may give you additional or different
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588
589  15. Disclaimer of Warranty.
590
591  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
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595THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
596PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
597IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
598ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
599
600  16. Limitation of Liability.
601
602  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
603WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
604THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
605GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
606USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
607DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
608PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
609EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
610SUCH DAMAGES.
611
612  17. Interpretation of Sections 15 and 16.
613
614  If the disclaimer of warranty and limitation of liability provided
615above cannot be given local legal effect according to their terms,
616reviewing courts shall apply local law that most closely approximates
617an absolute waiver of all civil liability in connection with the
618Program, unless a warranty or assumption of liability accompanies a
619copy of the Program in return for a fee.
620
621                     END OF TERMS AND CONDITIONS
622
623            How to Apply These Terms to Your New Programs
624
625  If you develop a new program, and you want it to be of the greatest
626possible use to the public, the best way to achieve this is to make it
627free software which everyone can redistribute and change under these terms.
628
629  To do so, attach the following notices to the program.  It is safest
630to attach them to the start of each source file to most effectively
631state the exclusion of warranty; and each file should have at least
632the "copyright" line and a pointer to where the full notice is found.
633
634    <one line to give the program's name and a brief idea of what it does.>
635    Copyright (C) <year>  <name of author>
636
637    This program is free software: you can redistribute it and/or modify
638    it under the terms of the GNU General Public License as published by
639    the Free Software Foundation, either version 3 of the License, or
640    (at your option) any later version.
641
642    This program is distributed in the hope that it will be useful,
643    but WITHOUT ANY WARRANTY; without even the implied warranty of
644    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
645    GNU General Public License for more details.
646
647    You should have received a copy of the GNU General Public License
648    along with this program.  If not, see <http://www.gnu.org/licenses/>.
649
650Also add information on how to contact you by electronic and paper mail.
651
652  If the program does terminal interaction, make it output a short
653notice like this when it starts in an interactive mode:
654
655    <program>  Copyright (C) <year>  <name of author>
656    This program comes with ABSOLUTELY NO WARRANTY; for details type show w'.
657    This is free software, and you are welcome to redistribute it
658    under certain conditions; type show c' for details.
659
660The hypothetical commands show w' and show c' should show the appropriate
661parts of the General Public License.  Of course, your program's commands
662might be different; for a GUI interface, you would use an "about box".
663
664  You should also get your employer (if you work as a programmer) or school,
665if any, to sign a "copyright disclaimer" for the program, if necessary.
666For more information on this, and how to apply and follow the GNU GPL, see