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5	<title>GNU General Public License - GNU Project - Free Software Foundation (FSF)</title>
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7	<body>
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 © 2007 Free Software Foundation, Inc. <http://fsf.org/></p><p>
12	Everyone is permitted to copy and distribute verbatim copies
13	of this license document, but changing it is not allowed.</p>
14
15	<h3><a name="preamble"></a>Preamble</h3>
16
17	<p>The GNU General Public License is a free, copyleft license for
18	software and other kinds of works.</p>
19
20	<p>The licenses for most software and other practical works are designed
21	to take away your freedom to share and change the works. By contrast,
22	the GNU General Public License is intended to guarantee your freedom to
23	share and change all versions of a program--to make sure it remains free
24	software for all its users. We, the Free Software Foundation, use the
25	GNU General Public License for most of our software; it applies also to
26	any other work released this way by its authors. You can apply it to
27	your programs, too.</p>
28
29	<p>When we speak of free software, we are referring to freedom, not
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36	<p>To protect your rights, we need to prevent others from denying you
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47	<p>Developers that use the GNU GPL protect your rights with two steps:
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77
78	<h3><a name="terms"></a>TERMS AND CONDITIONS</h3>
79
80	<h4><a name="section0"></a>0. Definitions.</h4>
81
82	<p>“This License” refers to version 3 of the GNU General Public License.</p>
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84	<p>“Copyright” also means copyright-like laws that apply to other kinds of
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87	<p>“The Program” refers to any copyrightable work licensed under this
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119	<h4><a name="section1"></a>1. Source Code.</h4>
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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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182	<p>Conveying under any other circumstances is permitted solely under
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194	<p>When you convey a covered work, you waive any legal power to forbid
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202	<h4><a name="section4"></a>4. Conveying Verbatim Copies.</h4>
203
204	<p>You may convey verbatim copies of the Program's source code as you
205	receive it, in any medium, provided that you conspicuously and
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215	<h4><a name="section5"></a>5. Conveying Modified Source Versions.</h4>
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217	<p>You may convey a work based on the Program, or the modifications to
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225	<li>b) The work must carry prominent notices stating that it is
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228	“keep intact all notices”.</li>
229
230	<li>c) You must license the entire work, as a whole, under this
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254	<h4><a name="section6"></a>6. Conveying Non-Source Forms.</h4>
255
256	<p>You may convey a covered work in object code form under the terms
257	of sections 4 and 5, provided that you also convey the
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259	in one of these ways:</p>
260
261	<ul>
262	<li>a) Convey the object code in, or embodied in, a physical product
263	(including a physical distribution medium), accompanied by the
264	Corresponding Source fixed on a durable physical medium
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267	<li>b) Convey the object code in, or embodied in, a physical product
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269	written offer, valid for at least three years and valid for as
270	long as you offer spare parts or customer support for that product
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272	copy of the Corresponding Source for all the software in the
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279	<li>c) Convey individual copies of the object code with a copy of the
280	written offer to provide the Corresponding Source. This
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283	with subsection 6b.</li>
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285	<li>d) Convey the object code by offering access from a designated
286	place (gratis or for a charge), and offer equivalent access to the
287	Corresponding Source in the same way through the same place at no
288	further charge. You need not require recipients to copy the
289	Corresponding Source along with the object code. If the place to
290	copy the object code is a network server, the Corresponding Source
291	may be on a different server (operated by you or a third party)
292	that supports equivalent copying facilities, provided you maintain
293	clear directions next to the object code saying where to find the
294	Corresponding Source. Regardless of what server hosts the
295	Corresponding Source, you remain obligated to ensure that it is
296	available for as long as needed to satisfy these requirements.</li>
297
298	<li>e) Convey the object code using peer-to-peer transmission, provided
299	you inform other peers where the object code and Corresponding
300	Source of the work are being offered to the general public at no
301	charge under subsection 6d.</li>
302	</ul>
303
304	<p>A separable portion of the object code, whose source code is excluded
305	from the Corresponding Source as a System Library, need not be
306	included in conveying the object code work.</p>
307
308	<p>A “User Product” is either (1) a “consumer product”, which means any
309	tangible personal property which is normally used for personal, family,
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321	<p>“Installation Information” for a User Product means any methods,
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328
329	<p>If you convey an object code work under this section in, or with, or
330	specifically for use in, a User Product, and the conveying occurs as
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335	by the Installation Information. But this requirement does not apply
336	if neither you nor any third party retains the ability to install
337	modified object code on the User Product (for example, the work has
338	been installed in ROM).</p>
339
340	<p>The requirement to provide Installation Information does not include a
341	requirement to continue to provide support service, warranty, or updates
342	for a work that has been modified or installed by the recipient, or for
343	the User Product in which it has been modified or installed. Access to a
344	network may be denied when the modification itself materially and
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347
348	<p>Corresponding Source conveyed, and Installation Information provided,
349	in accord with this section must be in a format that is publicly
350	documented (and with an implementation available to the public in
351	source code form), and must require no special password or key for
352	unpacking, reading or copying.</p>
353
354	<h4><a name="section7"></a>7. Additional Terms.</h4>
355
356	<p>“Additional permissions” are terms that supplement the terms of this
357	License by making exceptions from one or more of its conditions.
358	Additional permissions that are applicable to the entire Program shall
359	be treated as though they were included in this License, to the extent
360	that they are valid under applicable law. If additional permissions
361	apply only to part of the Program, that part may be used separately
362	under those permissions, but the entire Program remains governed by
363	this License without regard to the additional permissions.</p>
364
365	<p>When you convey a copy of a covered work, you may at your option
366	remove any additional permissions from that copy, or from any part of
367	it. (Additional permissions may be written to require their own
368	removal in certain cases when you modify the work.) You may place
369	additional permissions on material, added by you to a covered work,
370	for which you have or can give appropriate copyright permission.</p>
371
372	<p>Notwithstanding any other provision of this License, for material you
373	add to a covered work, you may (if authorized by the copyright holders of
374	that material) supplement the terms of this License with terms:</p>
375
376	<ul>
377	<li>a) Disclaiming warranty or limiting liability differently from the
378	terms of sections 15 and 16 of this License; or</li>
379
380	<li>b) Requiring preservation of specified reasonable legal notices or
381	author attributions in that material or in the Appropriate Legal
382	Notices displayed by works containing it; or</li>
383
384	<li>c) Prohibiting misrepresentation of the origin of that material, or
385	requiring that modified versions of such material be marked in
386	reasonable ways as different from the original version; or</li>
387
388	<li>d) Limiting the use for publicity purposes of names of licensors or
389	authors of the material; or</li>
390
391	<li>e) Declining to grant rights under trademark law for use of some
392	trade names, trademarks, or service marks; or</li>
393
394	<li>f) Requiring indemnification of licensors and authors of that
395	material by anyone who conveys the material (or modified versions of
396	it) with contractual assumptions of liability to the recipient, for
397	any liability that these contractual assumptions directly impose on
398	those licensors and authors.</li>
399	</ul>
400
401	<p>All other non-permissive additional terms are considered “further
402	restrictions” within the meaning of section 10. If the Program as you
403	received it, or any part of it, contains a notice stating that it is
404	governed by this License along with a term that is a further
405	restriction, you may remove that term. If a license document contains
406	a further restriction but permits relicensing or conveying under this
407	License, you may add to a covered work material governed by the terms
408	of that license document, provided that the further restriction does
409	not survive such relicensing or conveying.</p>
410
411	<p>If you add terms to a covered work in accord with this section, you
412	must place, in the relevant source files, a statement of the
413	additional terms that apply to those files, or a notice indicating
414	where to find the applicable terms.</p>
415
416	<p>Additional terms, permissive or non-permissive, may be stated in the
417	form of a separately written license, or stated as exceptions;
418	the 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
423	provided under this License. Any attempt otherwise to propagate or
424	modify it is void, and will automatically terminate your rights under
425	this License (including any patent licenses granted under the third
426	paragraph of section 11).</p>
427
428	<p>However, if you cease all violation of this License, then your
429	license from a particular copyright holder is reinstated (a)
430	provisionally, unless and until the copyright holder explicitly and
431	finally terminates your license, and (b) permanently, if the copyright
432	holder fails to notify you of the violation by some reasonable means
433	prior to 60 days after the cessation.</p>
434
435	<p>Moreover, your license from a particular copyright holder is
436	reinstated permanently if the copyright holder notifies you of the
437	violation by some reasonable means, this is the first time you have
438	received notice of violation of this License (for any work) from that
439	copyright holder, and you cure the violation prior to 30 days after
440	your receipt of the notice.</p>
441
442	<p>Termination of your rights under this section does not terminate the
443	licenses of parties who have received copies or rights from you under
444	this License. If your rights have been terminated and not permanently
445	reinstated, you do not qualify to receive new licenses for the same
446	material 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
451	run a copy of the Program. Ancillary propagation of a covered work
452	occurring solely as a consequence of using peer-to-peer transmission
453	to receive a copy likewise does not require acceptance. However,
454	nothing other than this License grants you permission to propagate or
455	modify any covered work. These actions infringe copyright if you do
456	not accept this License. Therefore, by modifying or propagating a
457	covered 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
462	receives a license from the original licensors, to run, modify and
463	propagate that work, subject to this License. You are not responsible
464	for enforcing compliance by third parties with this License.</p>
465
466	<p>An “entity transaction” is a transaction transferring control of an
467	organization, or substantially all assets of one, or subdividing an
468	organization, or merging organizations. If propagation of a covered
469	work results from an entity transaction, each party to that
470	transaction who receives a copy of the work also receives whatever
471	licenses to the work the party's predecessor in interest had or could
472	give under the previous paragraph, plus a right to possession of the
473	Corresponding Source of the work from the predecessor in interest, if
474	the 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
477	rights granted or affirmed under this License. For example, you may
478	not impose a license fee, royalty, or other charge for exercise of
479	rights granted under this License, and you may not initiate litigation
480	(including a cross-claim or counterclaim in a lawsuit) alleging that
481	any patent claim is infringed by making, using, selling, offering for
482	sale, or importing the Program or any portion of it.</p>
483
484	<h4><a name="section11"></a>11. Patents.</h4>
485
486	<p>A “contributor” is a copyright holder who authorizes use under this
487	License of the Program or a work on which the Program is based. The
488	work thus licensed is called the contributor's “contributor version”.</p>
489
490	<p>A contributor's “essential patent claims” are all patent claims
491	owned or controlled by the contributor, whether already acquired or
492	hereafter acquired, that would be infringed by some manner, permitted
493	by this License, of making, using, or selling its contributor version,
494	but do not include claims that would be infringed only as a
495	consequence of further modification of the contributor version. For
496	purposes of this definition, “control” includes the right to grant
497	patent sublicenses in a manner consistent with the requirements of
498	this License.</p>
499
500	<p>Each contributor grants you a non-exclusive, worldwide, royalty-free
501	patent license under the contributor's essential patent claims, to
502	make, use, sell, offer for sale, import and otherwise run, modify and
503	propagate the contents of its contributor version.</p>
504
505	<p>In the following three paragraphs, a “patent license” is any express
506	agreement or commitment, however denominated, not to enforce a patent
507	(such as an express permission to practice a patent or covenant not to
508	sue for patent infringement). To “grant” such a patent license to a
509	party means to make such an agreement or commitment not to enforce a
510	patent against the party.</p>
511
512	<p>If you convey a covered work, knowingly relying on a patent license,
513	and the Corresponding Source of the work is not available for anyone
514	to copy, free of charge and under the terms of this License, through a
515	publicly available network server or other readily accessible means,
516	then you must either (1) cause the Corresponding Source to be so
517	available, or (2) arrange to deprive yourself of the benefit of the
518	patent license for this particular work, or (3) arrange, in a manner
519	consistent with the requirements of this License, to extend the patent
520	license to downstream recipients. “Knowingly relying” means you have
521	actual knowledge that, but for the patent license, your conveying the
522	covered work in a country, or your recipient's use of the covered work
523	in a country, would infringe one or more identifiable patents in that
524	country that you have reason to believe are valid.</p>
525
526	<p>If, pursuant to or in connection with a single transaction or
527	arrangement, you convey, or propagate by procuring conveyance of, a
528	covered work, and grant a patent license to some of the parties
529	receiving the covered work authorizing them to use, propagate, modify
530	or convey a specific copy of the covered work, then the patent license
531	you grant is automatically extended to all recipients of the covered
532	work and works based on it.</p>
533
534	<p>A patent license is “discriminatory” if it does not include within
535	the scope of its coverage, prohibits the exercise of, or is
536	conditioned on the non-exercise of one or more of the rights that are
537	specifically granted under this License. You may not convey a covered
538	work if you are a party to an arrangement with a third party that is
539	in the business of distributing software, under which you make payment
540	to the third party based on the extent of your activity of conveying
541	the work, and under which the third party grants, to any of the
542	parties who would receive the covered work from you, a discriminatory
543	patent license (a) in connection with copies of the covered work
544	conveyed by you (or copies made from those copies), or (b) primarily
545	for and in connection with specific products or compilations that
546	contain the covered work, unless you entered into that arrangement,
547	or 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
550	any implied license or other defenses to infringement that may
551	otherwise 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
556	otherwise) that contradict the conditions of this License, they do not
557	excuse you from the conditions of this License. If you cannot convey a
558	covered work so as to satisfy simultaneously your obligations under this
559	License and any other pertinent obligations, then as a consequence you may
560	not convey it at all. For example, if you agree to terms that obligate you
561	to collect a royalty for further conveying from those to whom you convey
562	the Program, the only way you could satisfy both those terms and this
563	License 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
568	permission to link or combine any covered work with a work licensed
569	under version 3 of the GNU Affero General Public License into a single
570	combined work, and to convey the resulting work. The terms of this
571	License will continue to apply to the part which is the covered work,
572	but the special requirements of the GNU Affero General Public License,
573	section 13, concerning interaction through a network will apply to the
574	combination 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
579	the GNU General Public License from time to time. Such new versions will
580	be similar in spirit to the present version, but may differ in detail to
581	address new problems or concerns.</p>
582
583	<p>Each version is given a distinguishing version number. If the
584	Program specifies that a certain numbered version of the GNU General
585	Public License “or any later version” applies to it, you have the
586	option of following the terms and conditions either of that numbered
587	version or of any later version published by the Free Software
588	Foundation. If the Program does not specify a version number of the
589	GNU General Public License, you may choose any version ever published
590	by the Free Software Foundation.</p>
591
592	<p>If the Program specifies that a proxy can decide which future
593	versions of the GNU General Public License can be used, that proxy's
594	public statement of acceptance of a version permanently authorizes you
595	to choose that version for the Program.</p>
596
597	<p>Later license versions may give you additional or different
598	permissions. However, no additional obligations are imposed on any
599	author or copyright holder as a result of your choosing to follow a
600	later 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
605	APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
606	HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY
607	OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
608	THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
609	PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
610	IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
611	ALL 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
616	WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
617	THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
618	GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
619	USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
620	DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
621	PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
622	EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
623	SUCH 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
628	above cannot be given local legal effect according to their terms,
629	reviewing courts shall apply local law that most closely approximates
630	an absolute waiver of all civil liability in connection with the
631	Program, unless a warranty or assumption of liability accompanies a
632	copy 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
639	possible use to the public, the best way to achieve this is to make it
640	free 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
643	to attach them to the start of each source file to most effectively
644	state the exclusion of warranty; and each file should have at least
645	the “copyright” line and a pointer to where the full notice is found.</p>
646
647	<pre> <one line to give the program's name and a brief idea of what it does.>
648	Copyright (C) <year> <name of author>
649
650	This program is free software: you can redistribute it and/or modify
651	it under the terms of the GNU General Public License as published by
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 <http://www.gnu.org/licenses/>.
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
667	notice like this when it starts in an interactive mode:</p>
668
669	<pre> <program> Copyright (C) <year> <name of author>
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
676	parts of the General Public License. Of course, your program's commands
677	might be different; for a GUI interface, you would use an “about box”.</p>
678
679	<p>You should also get your employer (if you work as a programmer) or school,
680	if any, to sign a “copyright disclaimer” for the program, if necessary.
681	For more information on this, and how to apply and follow the GNU GPL, see
682	<http://www.gnu.org/licenses/>.</p>
683
684	<p>The GNU General Public License does not permit incorporating your program
685	into proprietary programs. If your program is a subroutine library, you
686	may consider it more useful to permit linking proprietary applications with
687	the library. If this is what you want to do, use the GNU Lesser General
688	Public License instead of this License. But first, please read
689	<http://www.gnu.org/philosophy/why-not-lgpl.html>.</p>
690
691
692	</body></html>

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