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8<h3 style="text-align: center;">GNU GENERAL PUBLIC LICENSE</h3>
9<p style="text-align: center;">Version 3, 29 June 2007</p>
10
11<p>Copyright &copy; 2007 Free Software Foundation, Inc. &lt;http://fsf.org/&gt;</p><p>
12 Everyone is permitted to copy and distribute verbatim copies
13 of this license document, but changing it is not allowed.</p>
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15<h3><a name="preamble"></a>Preamble</h3>
16
18software and other kinds of works.</p>
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20<p>The licenses for most software and other practical works are designed
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29<p>When we speak of free software, we are referring to freedom, not
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78<h3><a name="terms"></a>TERMS AND CONDITIONS</h3>
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80<h4><a name="section0"></a>0. Definitions.</h4>
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82<p>&ldquo;This License&rdquo; refers to version 3 of the GNU General Public License.</p>
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160
161<h4><a name="section2"></a>2. Basic Permissions.</h4>
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163<p>All rights granted under this License are granted for the term of
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204<p>You may convey verbatim copies of the Program's source code as you
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223    it, and giving a relevant date.</li>
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244<p>A compilation of a covered work with other separate and independent
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308<p>A &ldquo;User Product&rdquo; is either (1) a &ldquo;consumer product&rdquo;, which means any
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329<p>If you convey an object code work under this section in, or with, or
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355
356<p>&ldquo;Additional permissions&rdquo; are terms that supplement the terms of this
357License by making exceptions from one or more of its conditions.
358Additional permissions that are applicable to the entire Program shall
359be treated as though they were included in this License, to the extent
360that they are valid under applicable law.  If additional permissions
361apply only to part of the Program, that part may be used separately
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364
365<p>When you convey a copy of a covered work, you may at your option
366remove any additional permissions from that copy, or from any part of
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372<p>Notwithstanding any other provision of this License, for material you
373add to a covered work, you may (if authorized by the copyright holders of
374that material) supplement the terms of this License with terms:</p>
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380<li>b) Requiring preservation of specified reasonable legal notices or
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401<p>All other non-permissive additional terms are considered &ldquo;further
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403received it, or any part of it, contains a notice stating that it is
404governed by this License along with a term that is a further
405restriction, you may remove that term.  If a license document contains
406a further restriction but permits relicensing or conveying under this
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410
411<p>If you add terms to a covered work in accord with this section, you
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415
416<p>Additional terms, permissive or non-permissive, may be stated in the
417form of a separately written license, or stated as exceptions;
418the above requirements apply either way.</p>
419
420<h4><a name="section8"></a>8. Termination.</h4>
421
422<p>You may not propagate or modify a covered work except as expressly
423provided under this License.  Any attempt otherwise to propagate or
424modify it is void, and will automatically terminate your rights under
426paragraph of section 11).</p>
427
428<p>However, if you cease all violation of this License, then your
430provisionally, unless and until the copyright holder explicitly and
432holder fails to notify you of the violation by some reasonable means
433prior to 60 days after the cessation.</p>
434
436reinstated permanently if the copyright holder notifies you of the
437violation by some reasonable means, this is the first time you have
438received notice of violation of this License (for any work) from that
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441
442<p>Termination of your rights under this section does not terminate the
443licenses of parties who have received copies or rights from you under
445reinstated, you do not qualify to receive new licenses for the same
446material under section 10.</p>
447
448<h4><a name="section9"></a>9. Acceptance Not Required for Having Copies.</h4>
449
450<p>You are not required to accept this License in order to receive or
451run a copy of the Program.  Ancillary propagation of a covered work
452occurring solely as a consequence of using peer-to-peer transmission
453to receive a copy likewise does not require acceptance.  However,
454nothing other than this License grants you permission to propagate or
455modify any covered work.  These actions infringe copyright if you do
456not accept this License.  Therefore, by modifying or propagating a
457covered work, you indicate your acceptance of this License to do so.</p>
458
459<h4><a name="section10"></a>10. Automatic Licensing of Downstream Recipients.</h4>
460
461<p>Each time you convey a covered work, the recipient automatically
463propagate that work, subject to this License.  You are not responsible
464for enforcing compliance by third parties with this License.</p>
465
466<p>An &ldquo;entity transaction&rdquo; is a transaction transferring control of an
467organization, or substantially all assets of one, or subdividing an
468organization, or merging organizations.  If propagation of a covered
469work results from an entity transaction, each party to that
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472give under the previous paragraph, plus a right to possession of the
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474the predecessor has it or can get it with reasonable efforts.</p>
475
476<p>You may not impose any further restrictions on the exercise of the
477rights granted or affirmed under this License.  For example, you may
478not impose a license fee, royalty, or other charge for exercise of
479rights granted under this License, and you may not initiate litigation
480(including a cross-claim or counterclaim in a lawsuit) alleging that
481any patent claim is infringed by making, using, selling, offering for
482sale, or importing the Program or any portion of it.</p>
483
484<h4><a name="section11"></a>11. Patents.</h4>
485
486<p>A &ldquo;contributor&rdquo; is a copyright holder who authorizes use under this
487License of the Program or a work on which the Program is based.  The
488work thus licensed is called the contributor's &ldquo;contributor version&rdquo;.</p>
489
490<p>A contributor's &ldquo;essential patent claims&rdquo; are all patent claims
491owned or controlled by the contributor, whether already acquired or
492hereafter acquired, that would be infringed by some manner, permitted
493by this License, of making, using, or selling its contributor version,
494but do not include claims that would be infringed only as a
495consequence of further modification of the contributor version.  For
496purposes of this definition, &ldquo;control&rdquo; includes the right to grant
497patent sublicenses in a manner consistent with the requirements of
499
500<p>Each contributor grants you a non-exclusive, worldwide, royalty-free
501patent license under the contributor's essential patent claims, to
502make, use, sell, offer for sale, import and otherwise run, modify and
503propagate the contents of its contributor version.</p>
504
505<p>In the following three paragraphs, a &ldquo;patent license&rdquo; is any express
506agreement or commitment, however denominated, not to enforce a patent
507(such as an express permission to practice a patent or covenant not to
508sue for patent infringement).  To &ldquo;grant&rdquo; such a patent license to a
509party means to make such an agreement or commitment not to enforce a
510patent against the party.</p>
511
512<p>If you convey a covered work, knowingly relying on a patent license,
513and the Corresponding Source of the work is not available for anyone
514to copy, free of charge and under the terms of this License, through a
515publicly available network server or other readily accessible means,
516then you must either (1) cause the Corresponding Source to be so
517available, or (2) arrange to deprive yourself of the benefit of the
518patent license for this particular work, or (3) arrange, in a manner
519consistent with the requirements of this License, to extend the patent
520license to downstream recipients.  &ldquo;Knowingly relying&rdquo; means you have
522covered work in a country, or your recipient's use of the covered work
523in a country, would infringe one or more identifiable patents in that
524country that you have reason to believe are valid.</p>
525
526<p>If, pursuant to or in connection with a single transaction or
527arrangement, you convey, or propagate by procuring conveyance of, a
528covered work, and grant a patent license to some of the parties
529receiving the covered work authorizing them to use, propagate, modify
530or convey a specific copy of the covered work, then the patent license
531you grant is automatically extended to all recipients of the covered
532work and works based on it.</p>
533
534<p>A patent license is &ldquo;discriminatory&rdquo; if it does not include within
535the scope of its coverage, prohibits the exercise of, or is
536conditioned on the non-exercise of one or more of the rights that are
537specifically granted under this License.  You may not convey a covered
538work if you are a party to an arrangement with a third party that is
539in the business of distributing software, under which you make payment
540to the third party based on the extent of your activity of conveying
541the work, and under which the third party grants, to any of the
542parties who would receive the covered work from you, a discriminatory
543patent license (a) in connection with copies of the covered work
544conveyed by you (or copies made from those copies), or (b) primarily
545for and in connection with specific products or compilations that
546contain the covered work, unless you entered into that arrangement,
547or that patent license was granted, prior to 28 March 2007.</p>
548
549<p>Nothing in this License shall be construed as excluding or limiting
550any implied license or other defenses to infringement that may
551otherwise be available to you under applicable patent law.</p>
552
553<h4><a name="section12"></a>12. No Surrender of Others' Freedom.</h4>
554
555<p>If conditions are imposed on you (whether by court order, agreement or
557excuse you from the conditions of this License.  If you cannot convey a
558covered work so as to satisfy simultaneously your obligations under this
559License and any other pertinent obligations, then as a consequence you may
560not convey it at all.  For example, if you agree to terms that obligate you
561to collect a royalty for further conveying from those to whom you convey
562the Program, the only way you could satisfy both those terms and this
563License would be to refrain entirely from conveying the Program.</p>
564
565<h4><a name="section13"></a>13. Use with the GNU Affero General Public License.</h4>
566
567<p>Notwithstanding any other provision of this License, you have
568permission to link or combine any covered work with a work licensed
569under version 3 of the GNU Affero General Public License into a single
570combined work, and to convey the resulting work.  The terms of this
571License will continue to apply to the part which is the covered work,
572but the special requirements of the GNU Affero General Public License,
573section 13, concerning interaction through a network will apply to the
574combination as such.</p>
575
576<h4><a name="section14"></a>14. Revised Versions of this License.</h4>
577
578<p>The Free Software Foundation may publish revised and/or new versions of
579the GNU General Public License from time to time.  Such new versions will
580be similar in spirit to the present version, but may differ in detail to
582
583<p>Each version is given a distinguishing version number.  If the
584Program specifies that a certain numbered version of the GNU General
585Public License &ldquo;or any later version&rdquo; applies to it, you have the
586option of following the terms and conditions either of that numbered
588Foundation.  If the Program does not specify a version number of the
589GNU General Public License, you may choose any version ever published
590by the Free Software Foundation.</p>
591
592<p>If the Program specifies that a proxy can decide which future
593versions of the GNU General Public License can be used, that proxy's
594public statement of acceptance of a version permanently authorizes you
595to choose that version for the Program.</p>
596
598permissions.  However, no additional obligations are imposed on any
600later version.</p>
601
602<h4><a name="section15"></a>15. Disclaimer of Warranty.</h4>
603
604<p>THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
605APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
606HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM &ldquo;AS IS&rdquo; WITHOUT WARRANTY
607OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
608THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
609PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
610IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
611ALL NECESSARY SERVICING, REPAIR OR CORRECTION.</p>
612
613<h4><a name="section16"></a>16. Limitation of Liability.</h4>
614
615<p>IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
616WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
617THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
618GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
619USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
620DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
621PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
622EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
623SUCH DAMAGES.</p>
624
625<h4><a name="section17"></a>17. Interpretation of Sections 15 and 16.</h4>
626
627<p>If the disclaimer of warranty and limitation of liability provided
628above cannot be given local legal effect according to their terms,
629reviewing courts shall apply local law that most closely approximates
630an absolute waiver of all civil liability in connection with the
631Program, unless a warranty or assumption of liability accompanies a
632copy of the Program in return for a fee.</p>
633
634<p>END OF TERMS AND CONDITIONS</p>
635
636<h3><a name="howto"></a>How to Apply These Terms to Your New Programs</h3>
637
638<p>If you develop a new program, and you want it to be of the greatest
639possible use to the public, the best way to achieve this is to make it
640free software which everyone can redistribute and change under these terms.</p>
641
642<p>To do so, attach the following notices to the program.  It is safest
643to attach them to the start of each source file to most effectively
644state the exclusion of warranty; and each file should have at least
645the &ldquo;copyright&rdquo; line and a pointer to where the full notice is found.</p>
646
647<pre>    &lt;one line to give the program's name and a brief idea of what it does.&gt;
648    Copyright (C) &lt;year&gt;  &lt;name of author&gt;
649
650    This program is free software: you can redistribute it and/or modify
652    the Free Software Foundation, either version 3 of the License, or
653    (at your option) any later version.
654
655    This program is distributed in the hope that it will be useful,
656    but WITHOUT ANY WARRANTY; without even the implied warranty of
657    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
658    GNU General Public License for more details.
659
660    You should have received a copy of the GNU General Public License
661    along with this program.  If not, see &lt;http://www.gnu.org/licenses/&gt;.
662</pre>
663
664<p>Also add information on how to contact you by electronic and paper mail.</p>
665
666<p>If the program does terminal interaction, make it output a short
667notice like this when it starts in an interactive mode:</p>
668
669<pre>    &lt;program&gt;  Copyright (C) &lt;year&gt;  &lt;name of author&gt;
670    This program comes with ABSOLUTELY NO WARRANTY; for details type show w'.
671    This is free software, and you are welcome to redistribute it
672    under certain conditions; type show c' for details.
673</pre>
674
675<p>The hypothetical commands show w' and show c' should show the appropriate
677might be different; for a GUI interface, you would use an &ldquo;about box&rdquo;.</p>
678
679<p>You should also get your employer (if you work as a programmer) or school,
680if any, to sign a &ldquo;copyright disclaimer&rdquo; for the program, if necessary.