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0001 GNU GENERAL PUBLIC LICENSE 0002 Version 3, 29 June 2007 0003 0004 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> 0005 Everyone is permitted to copy and distribute verbatim copies 0006 of this license document, but changing it is not allowed. 0007 0008 Preamble 0009 0010 The GNU General Public License is a free, copyleft license for 0011 software and other kinds of works. 0012 0013 The licenses for most software and other practical works are designed 0014 to take away your freedom to share and change the works. By contrast, 0015 the GNU General Public License is intended to guarantee your freedom to 0016 share and change all versions of a program--to make sure it remains free 0017 software for all its users. We, the Free Software Foundation, use the 0018 GNU General Public License for most of our software; it applies also to 0019 any other work released this way by its authors. You can apply it to 0020 your programs, too. 0021 0022 When we speak of free software, we are referring to freedom, not 0023 price. Our General Public Licenses are designed to make sure that you 0024 have the freedom to distribute copies of free software (and charge for 0025 them if you wish), that you receive source code or can get it if you 0026 want it, that you can change the software or use pieces of it in new 0027 free programs, and that you know you can do these things. 0028 0029 To protect your rights, we need to prevent others from denying you 0030 these rights or asking you to surrender the rights. Therefore, you have 0031 certain responsibilities if you distribute copies of the software, or if 0032 you modify it: responsibilities to respect the freedom of others. 0033 0034 For example, if you distribute copies of such a program, whether 0035 gratis or for a fee, you must pass on to the recipients the same 0036 freedoms that you received. 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The systematic 0054 pattern of such abuse occurs in the area of products for individuals to 0055 use, which is precisely where it is most unacceptable. Therefore, we 0056 have designed this version of the GPL to prohibit the practice for those 0057 products. If such problems arise substantially in other domains, we 0058 stand ready to extend this provision to those domains in future versions 0059 of the GPL, as needed to protect the freedom of users. 0060 0061 Finally, every program is threatened constantly by software patents. 0062 States should not allow patents to restrict development and use of 0063 software on general-purpose computers, but in those that do, we wish to 0064 avoid the special danger that patents applied to a free program could 0065 make it effectively proprietary. To prevent this, the GPL assures that 0066 patents cannot be used to render the program non-free. 0067 0068 The precise terms and conditions for copying, distribution and 0069 modification follow. 0070 0071 TERMS AND CONDITIONS 0072 0073 0. Definitions. 0074 0075 "This License" refers to version 3 of the GNU General Public License. 0076 0077 "Copyright" also means copyright-like laws that apply to other kinds of 0078 works, such as semiconductor masks. 0079 0080 "The Program" refers to any copyrightable work licensed under this 0081 License. Each licensee is addressed as "you". "Licensees" and 0082 "recipients" may be individuals or organizations. 0083 0084 To "modify" a work means to copy from or adapt all or part of the work 0085 in a fashion requiring copyright permission, other than the making of an 0086 exact copy. 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If your rights have been terminated and not permanently 0432 reinstated, you do not qualify to receive new licenses for the same 0433 material under section 10. 0434 0435 9. Acceptance Not Required for Having Copies. 0436 0437 You are not required to accept this License in order to receive or 0438 run a copy of the Program. Ancillary propagation of a covered work 0439 occurring solely as a consequence of using peer-to-peer transmission 0440 to receive a copy likewise does not require acceptance. However, 0441 nothing other than this License grants you permission to propagate or 0442 modify any covered work. These actions infringe copyright if you do 0443 not accept this License. Therefore, by modifying or propagating a 0444 covered work, you indicate your acceptance of this License to do so. 0445 0446 10. Automatic Licensing of Downstream Recipients. 0447 0448 Each time you convey a covered work, the recipient automatically 0449 receives a license from the original licensors, to run, modify and 0450 propagate that work, subject to this License. You are not responsible 0451 for enforcing compliance by third parties with this License. 0452 0453 An "entity transaction" is a transaction transferring control of an 0454 organization, or substantially all assets of one, or subdividing an 0455 organization, or merging organizations. 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Patents. 0472 0473 A "contributor" is a copyright holder who authorizes use under this 0474 License of the Program or a work on which the Program is based. The 0475 work thus licensed is called the contributor's "contributor version". 0476 0477 A contributor's "essential patent claims" are all patent claims 0478 owned or controlled by the contributor, whether already acquired or 0479 hereafter acquired, that would be infringed by some manner, permitted 0480 by this License, of making, using, or selling its contributor version, 0481 but do not include claims that would be infringed only as a 0482 consequence of further modification of the contributor version. For 0483 purposes of this definition, "control" includes the right to grant 0484 patent sublicenses in a manner consistent with the requirements of 0485 this License. 0486 0487 Each contributor grants you a non-exclusive, worldwide, royalty-free 0488 patent license under the contributor's essential patent claims, to 0489 make, use, sell, offer for sale, import and otherwise run, modify and 0490 propagate the contents of its contributor version. 0491 0492 In the following three paragraphs, a "patent license" is any express 0493 agreement or commitment, however denominated, not to enforce a patent 0494 (such as an express permission to practice a patent or covenant not to 0495 sue for patent infringement). To "grant" such a patent license to a 0496 party means to make such an agreement or commitment not to enforce a 0497 patent against the party. 0498 0499 If you convey a covered work, knowingly relying on a patent license, 0500 and the Corresponding Source of the work is not available for anyone 0501 to copy, free of charge and under the terms of this License, through a 0502 publicly available network server or other readily accessible means, 0503 then you must either (1) cause the Corresponding Source to be so 0504 available, or (2) arrange to deprive yourself of the benefit of the 0505 patent license for this particular work, or (3) arrange, in a manner 0506 consistent with the requirements of this License, to extend the patent 0507 license to downstream recipients. "Knowingly relying" means you have 0508 actual knowledge that, but for the patent license, your conveying the 0509 covered work in a country, or your recipient's use of the covered work 0510 in a country, would infringe one or more identifiable patents in that 0511 country that you have reason to believe are valid. 0512 0513 If, pursuant to or in connection with a single transaction or 0514 arrangement, you convey, or propagate by procuring conveyance of, a 0515 covered work, and grant a patent license to some of the parties 0516 receiving the covered work authorizing them to use, propagate, modify 0517 or convey a specific copy of the covered work, then the patent license 0518 you grant is automatically extended to all recipients of the covered 0519 work and works based on it. 0520 0521 A patent license is "discriminatory" if it does not include within 0522 the scope of its coverage, prohibits the exercise of, or is 0523 conditioned on the non-exercise of one or more of the rights that are 0524 specifically granted under this License. You may not convey a covered 0525 work if you are a party to an arrangement with a third party that is 0526 in the business of distributing software, under which you make payment 0527 to the third party based on the extent of your activity of conveying 0528 the work, and under which the third party grants, to any of the 0529 parties who would receive the covered work from you, a discriminatory 0530 patent license (a) in connection with copies of the covered work 0531 conveyed by you (or copies made from those copies), or (b) primarily 0532 for and in connection with specific products or compilations that 0533 contain the covered work, unless you entered into that arrangement, 0534 or that patent license was granted, prior to 28 March 2007. 0535 0536 Nothing in this License shall be construed as excluding or limiting 0537 any implied license or other defenses to infringement that may 0538 otherwise be available to you under applicable patent law. 0539 0540 12. No Surrender of Others' Freedom. 0541 0542 If conditions are imposed on you (whether by court order, agreement or 0543 otherwise) that contradict the conditions of this License, they do not 0544 excuse you from the conditions of this License. If you cannot convey a 0545 covered work so as to satisfy simultaneously your obligations under this 0546 License and any other pertinent obligations, then as a consequence you may 0547 not convey it at all. For example, if you agree to terms that obligate you 0548 to collect a royalty for further conveying from those to whom you convey 0549 the Program, the only way you could satisfy both those terms and this 0550 License would be to refrain entirely from conveying the Program. 0551 0552 13. Use with the GNU Affero General Public License. 0553 0554 Notwithstanding any other provision of this License, you have 0555 permission to link or combine any covered work with a work licensed 0556 under version 3 of the GNU Affero General Public License into a single 0557 combined work, and to convey the resulting work. The terms of this 0558 License will continue to apply to the part which is the covered work, 0559 but the special requirements of the GNU Affero General Public License, 0560 section 13, concerning interaction through a network will apply to the 0561 combination as such. 0562 0563 14. Revised Versions of this License. 0564 0565 The Free Software Foundation may publish revised and/or new versions of 0566 the GNU General Public License from time to time. Such new versions will 0567 be similar in spirit to the present version, but may differ in detail to 0568 address new problems or concerns. 0569 0570 Each version is given a distinguishing version number. If the 0571 Program specifies that a certain numbered version of the GNU General 0572 Public License "or any later version" applies to it, you have the 0573 option of following the terms and conditions either of that numbered 0574 version or of any later version published by the Free Software 0575 Foundation. If the Program does not specify a version number of the 0576 GNU General Public License, you may choose any version ever published 0577 by the Free Software Foundation. 0578 0579 If the Program specifies that a proxy can decide which future 0580 versions of the GNU General Public License can be used, that proxy's 0581 public statement of acceptance of a version permanently authorizes you 0582 to choose that version for the Program. 0583 0584 Later license versions may give you additional or different 0585 permissions. However, no additional obligations are imposed on any 0586 author or copyright holder as a result of your choosing to follow a 0587 later version. 0588 0589 15. Disclaimer of Warranty. 0590 0591 THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 0592 APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 0593 HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 0594 OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 0595 THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 0596 PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 0597 IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 0598 ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 0599 0600 16. Limitation of Liability. 0601 0602 IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 0603 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 0604 THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 0605 GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 0606 USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 0607 DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 0608 PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 0609 EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 0610 SUCH DAMAGES. 0611 0612 17. Interpretation of Sections 15 and 16. 0613 0614 If the disclaimer of warranty and limitation of liability provided 0615 above cannot be given local legal effect according to their terms, 0616 reviewing courts shall apply local law that most closely approximates 0617 an absolute waiver of all civil liability in connection with the 0618 Program, unless a warranty or assumption of liability accompanies a 0619 copy of the Program in return for a fee. 0620 0621 END OF TERMS AND CONDITIONS 0622 0623 How to Apply These Terms to Your New Programs 0624 0625 If you develop a new program, and you want it to be of the greatest 0626 possible use to the public, the best way to achieve this is to make it 0627 free software which everyone can redistribute and change under these terms. 0628 0629 To do so, attach the following notices to the program. It is safest 0630 to attach them to the start of each source file to most effectively 0631 state the exclusion of warranty; and each file should have at least 0632 the "copyright" line and a pointer to where the full notice is found. 0633 0634 <one line to give the program's name and a brief idea of what it does.> 0635 Copyright (C) <year> <name of author> 0636 0637 This program is free software: you can redistribute it and/or modify 0638 it under the terms of the GNU General Public License as published by 0639 the Free Software Foundation, either version 3 of the License, or 0640 (at your option) any later version. 0641 0642 This program is distributed in the hope that it will be useful, 0643 but WITHOUT ANY WARRANTY; without even the implied warranty of 0644 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 0645 GNU General Public License for more details. 0646 0647 You should have received a copy of the GNU General Public License 0648 along with this program. If not, see <http://www.gnu.org/licenses/>. 0649 0650 Also add information on how to contact you by electronic and paper mail. 0651 0652 If the program does terminal interaction, make it output a short 0653 notice like this when it starts in an interactive mode: 0654 0655 <program> Copyright (C) <year> <name of author> 0656 This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 0657 This is free software, and you are welcome to redistribute it 0658 under certain conditions; type `show c' for details. 0659 0660 The hypothetical commands `show w' and `show c' should show the appropriate 0661 parts of the General Public License. Of course, your program's commands 0662 might be different; for a GUI interface, you would use an "about box". 0663 0664 You should also get your employer (if you work as a programmer) or school, 0665 if any, to sign a "copyright disclaimer" for the program, if necessary. 0666 For more information on this, and how to apply and follow the GNU GPL, see 0667 <http://www.gnu.org/licenses/>. 0668 0669 The GNU General Public License does not permit incorporating your program 0670 into proprietary programs. If your program is a subroutine library, you 0671 may consider it more useful to permit linking proprietary applications with 0672 the library. If this is what you want to do, use the GNU Lesser General 0673 Public License instead of this License. But first, please read 0674 <http://www.gnu.org/philosophy/why-not-lgpl.html>.