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
 11: software and other kinds of works.
 12: 
 13:   The licenses for most software and other practical works are designed
 14: to take away your freedom to share and change the works.  By contrast,
 15: the GNU General Public License is intended to guarantee your freedom to
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 18: GNU General Public License for most of our software; it applies also to
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 71:                        TERMS AND CONDITIONS
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 75:   "This License" refers to version 3 of the GNU General Public License.
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154:   2. Basic Permissions.
155: 
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195:   4. Conveying Verbatim Copies.
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197:   You may convey verbatim copies of the Program's source code as you
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202: keep intact all notices of the absence of any warranty; and give all
203: recipients a copy of this License along with the Program.
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205:   You may charge any price or no price for each copy that you convey,
206: and you may offer support or warranty protection for a fee.
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208:   5. Conveying Modified Source Versions.
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214:     a) The work must carry prominent notices stating that you modified
215:     it, and giving a relevant date.
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221: 
222:     c) You must license the entire work, as a whole, under this
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226:     regardless of how they are packaged.  This License gives no
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228:     invalidate such permission if you have separately received it.
229: 
230:     d) If the work has interactive user interfaces, each must display
231:     Appropriate Legal Notices; however, if the Program has interactive
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233:     work need not make them do so.
234: 
235:   A compilation of a covered work with other separate and independent
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240: used to limit the access or legal rights of the compilation's users
241: beyond what the individual works permit.  Inclusion of a covered work
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244: 
245:   6. Conveying Non-Source Forms.
246: 
247:   You may convey a covered work in object code form under the terms
248: of sections 4 and 5, provided that you also convey the
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253:     (including a physical distribution medium), accompanied by the
254:     Corresponding Source fixed on a durable physical medium
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256: 
257:     b) Convey the object code in, or embodied in, a physical product
258:     (including a physical distribution medium), accompanied by a
259:     written offer, valid for at least three years and valid for as
260:     long as you offer spare parts or customer support for that product
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262:     copy of the Corresponding Source for all the software in the
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264:     medium customarily used for software interchange, for a price no
265:     more than your reasonable cost of physically performing this
266:     conveying of source, or (2) access to copy the
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269:     c) Convey individual copies of the object code with a copy of the
270:     written offer to provide the Corresponding Source.  This
271:     alternative is allowed only occasionally and noncommercially, and
272:     only if you received the object code with such an offer, in accord
273:     with subsection 6b.
274: 
275:     d) Convey the object code by offering access from a designated
276:     place (gratis or for a charge), and offer equivalent access to the
277:     Corresponding Source in the same way through the same place at no
278:     further charge.  You need not require recipients to copy the
279:     Corresponding Source along with the object code.  If the place to
280:     copy the object code is a network server, the Corresponding Source
281:     may be on a different server (operated by you or a third party)
282:     that supports equivalent copying facilities, provided you maintain
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284:     Corresponding Source.  Regardless of what server hosts the
285:     Corresponding Source, you remain obligated to ensure that it is
286:     available for as long as needed to satisfy these requirements.
287: 
288:     e) Convey the object code using peer-to-peer transmission, provided
289:     you inform other peers where the object code and Corresponding
290:     Source of the work are being offered to the general public at no
291:     charge under subsection 6d.
292: 
293:   A separable portion of the object code, whose source code is excluded
294: from the Corresponding Source as a System Library, need not be
295: included in conveying the object code work.
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297:   A "User Product" is either (1) a "consumer product", which means any
298: tangible personal property which is normally used for personal, family,
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303: typical or common use of that class of product, regardless of the status
304: of the particular user or of the way in which the particular user
305: actually uses, or expects or is expected to use, the product.  A product
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308: the only significant mode of use of the product.
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313: a modified version of its Corresponding Source.  The information must
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316: modification has been made.
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318:   If you convey an object code work under this section in, or with, or
319: specifically for use in, a User Product, and the conveying occurs as
320: part of a transaction in which the right of possession and use of the
321: User Product is transferred to the recipient in perpetuity or for a
322: fixed term (regardless of how the transaction is characterized), the
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327: been installed in ROM).
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329:   The requirement to provide Installation Information does not include a
330: requirement to continue to provide support service, warranty, or updates
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332: the User Product in which it has been modified or installed.  Access to a
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335: protocols for communication across the network.
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338: in accord with this section must be in a format that is publicly
339: documented (and with an implementation available to the public in
340: source code form), and must require no special password or key for
341: unpacking, reading or copying.
342: 
343:   7. Additional Terms.
344: 
345:   "Additional permissions" are terms that supplement the terms of this
346: License by making exceptions from one or more of its conditions.
347: Additional permissions that are applicable to the entire Program shall
348: be treated as though they were included in this License, to the extent
349: that they are valid under applicable law.  If additional permissions
350: apply only to part of the Program, that part may be used separately
351: under those permissions, but the entire Program remains governed by
352: this License without regard to the additional permissions.
353: 
354:   When you convey a copy of a covered work, you may at your option
355: remove any additional permissions from that copy, or from any part of
356: it.  (Additional permissions may be written to require their own
357: removal in certain cases when you modify the work.)  You may place
358: additional permissions on material, added by you to a covered work,
359: for which you have or can give appropriate copyright permission.
360: 
361:   Notwithstanding any other provision of this License, for material you
362: add to a covered work, you may (if authorized by the copyright holders of
363: that material) supplement the terms of this License with terms:
364: 
365:     a) Disclaiming warranty or limiting liability differently from the
366:     terms of sections 15 and 16 of this License; or
367: 
368:     b) Requiring preservation of specified reasonable legal notices or
369:     author attributions in that material or in the Appropriate Legal
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372:     c) Prohibiting misrepresentation of the origin of that material, or
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384:     it) with contractual assumptions of liability to the recipient, for
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386:     those licensors and authors.
387: 
388:   All other non-permissive additional terms are considered "further
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390: received it, or any part of it, contains a notice stating that it is
391: governed by this License along with a term that is a further
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393: a further restriction but permits relicensing or conveying under this
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395: of that license document, provided that the further restriction does
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399: must place, in the relevant source files, a statement of the
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401: where to find the applicable terms.
402: 
403:   Additional terms, permissive or non-permissive, may be stated in the
404: form of a separately written license, or stated as exceptions;
405: the above requirements apply either way.
406: 
407:   8. Termination.
408: 
409:   You may not propagate or modify a covered work except as expressly
410: provided under this License.  Any attempt otherwise to propagate or
411: modify it is void, and will automatically terminate your rights under
412: this License (including any patent licenses granted under the third
413: paragraph of section 11).
414: 
415:   However, if you cease all violation of this License, then your
416: license from a particular copyright holder is reinstated (a)
417: provisionally, unless and until the copyright holder explicitly and
418: finally terminates your license, and (b) permanently, if the copyright
419: holder fails to notify you of the violation by some reasonable means
420: prior to 60 days after the cessation.
421: 
422:   Moreover, your license from a particular copyright holder is
423: reinstated permanently if the copyright holder notifies you of the
424: violation by some reasonable means, this is the first time you have
425: received notice of violation of this License (for any work) from that
426: copyright holder, and you cure the violation prior to 30 days after
427: your receipt of the notice.
428: 
429:   Termination of your rights under this section does not terminate the
430: licenses of parties who have received copies or rights from you under
431: this License.  If your rights have been terminated and not permanently
432: reinstated, you do not qualify to receive new licenses for the same
433: material under section 10.
434: 
435:   9. Acceptance Not Required for Having Copies.
436: 
437:   You are not required to accept this License in order to receive or
438: run a copy of the Program.  Ancillary propagation of a covered work
439: occurring solely as a consequence of using peer-to-peer transmission
440: to receive a copy likewise does not require acceptance.  However,
441: nothing other than this License grants you permission to propagate or
442: modify any covered work.  These actions infringe copyright if you do
443: not accept this License.  Therefore, by modifying or propagating a
444: covered work, you indicate your acceptance of this License to do so.
445: 
446:   10. Automatic Licensing of Downstream Recipients.
447: 
448:   Each time you convey a covered work, the recipient automatically
449: receives a license from the original licensors, to run, modify and
450: propagate that work, subject to this License.  You are not responsible
451: for enforcing compliance by third parties with this License.
452: 
453:   An "entity transaction" is a transaction transferring control of an
454: organization, or substantially all assets of one, or subdividing an
455: organization, or merging organizations.  If propagation of a covered
456: work results from an entity transaction, each party to that
457: transaction who receives a copy of the work also receives whatever
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459: give under the previous paragraph, plus a right to possession of the
460: Corresponding Source of the work from the predecessor in interest, if
461: the predecessor has it or can get it with reasonable efforts.
462: 
463:   You may not impose any further restrictions on the exercise of the
464: rights granted or affirmed under this License.  For example, you may
465: not impose a license fee, royalty, or other charge for exercise of
466: rights granted under this License, and you may not initiate litigation
467: (including a cross-claim or counterclaim in a lawsuit) alleging that
468: any patent claim is infringed by making, using, selling, offering for
469: sale, or importing the Program or any portion of it.
470: 
471:   11. Patents.
472: 
473:   A "contributor" is a copyright holder who authorizes use under this
474: License of the Program or a work on which the Program is based.  The
475: work thus licensed is called the contributor's "contributor version".
476: 
477:   A contributor's "essential patent claims" are all patent claims
478: owned or controlled by the contributor, whether already acquired or
479: hereafter acquired, that would be infringed by some manner, permitted
480: by this License, of making, using, or selling its contributor version,
481: but do not include claims that would be infringed only as a
482: consequence of further modification of the contributor version.  For
483: purposes of this definition, "control" includes the right to grant
484: patent sublicenses in a manner consistent with the requirements of
485: this License.
486: 
487:   Each contributor grants you a non-exclusive, worldwide, royalty-free
488: patent license under the contributor's essential patent claims, to
489: make, use, sell, offer for sale, import and otherwise run, modify and
490: propagate the contents of its contributor version.
491: 
492:   In the following three paragraphs, a "patent license" is any express
493: agreement or commitment, however denominated, not to enforce a patent
494: (such as an express permission to practice a patent or covenant not to
495: sue for patent infringement).  To "grant" such a patent license to a
496: party means to make such an agreement or commitment not to enforce a
497: patent against the party.
498: 
499:   If you convey a covered work, knowingly relying on a patent license,
500: and the Corresponding Source of the work is not available for anyone
501: to copy, free of charge and under the terms of this License, through a
502: publicly available network server or other readily accessible means,
503: then you must either (1) cause the Corresponding Source to be so
504: available, or (2) arrange to deprive yourself of the benefit of the
505: patent license for this particular work, or (3) arrange, in a manner
506: consistent with the requirements of this License, to extend the patent
507: license to downstream recipients.  "Knowingly relying" means you have
508: actual knowledge that, but for the patent license, your conveying the
509: covered work in a country, or your recipient's use of the covered work
510: in a country, would infringe one or more identifiable patents in that
511: country that you have reason to believe are valid.
512: 
513:   If, pursuant to or in connection with a single transaction or
514: arrangement, you convey, or propagate by procuring conveyance of, a
515: covered work, and grant a patent license to some of the parties
516: receiving the covered work authorizing them to use, propagate, modify
517: or convey a specific copy of the covered work, then the patent license
518: you grant is automatically extended to all recipients of the covered
519: work and works based on it.
520: 
521:   A patent license is "discriminatory" if it does not include within
522: the scope of its coverage, prohibits the exercise of, or is
523: conditioned on the non-exercise of one or more of the rights that are
524: specifically granted under this License.  You may not convey a covered
525: work if you are a party to an arrangement with a third party that is
526: in the business of distributing software, under which you make payment
527: to the third party based on the extent of your activity of conveying
528: the work, and under which the third party grants, to any of the
529: parties who would receive the covered work from you, a discriminatory
530: patent license (a) in connection with copies of the covered work
531: conveyed by you (or copies made from those copies), or (b) primarily
532: for and in connection with specific products or compilations that
533: contain the covered work, unless you entered into that arrangement,
534: or that patent license was granted, prior to 28 March 2007.
535: 
536:   Nothing in this License shall be construed as excluding or limiting
537: any implied license or other defenses to infringement that may
538: otherwise be available to you under applicable patent law.
539: 
540:   12. No Surrender of Others' Freedom.
541: 
542:   If conditions are imposed on you (whether by court order, agreement or
543: otherwise) that contradict the conditions of this License, they do not
544: excuse you from the conditions of this License.  If you cannot convey a
545: covered work so as to satisfy simultaneously your obligations under this
546: License and any other pertinent obligations, then as a consequence you may
547: not convey it at all.  For example, if you agree to terms that obligate you
548: to collect a royalty for further conveying from those to whom you convey
549: the Program, the only way you could satisfy both those terms and this
550: License would be to refrain entirely from conveying the Program.
551: 
552:   13. Use with the GNU Affero General Public License.
553: 
554:   Notwithstanding any other provision of this License, you have
555: permission to link or combine any covered work with a work licensed
556: under version 3 of the GNU Affero General Public License into a single
557: combined work, and to convey the resulting work.  The terms of this
558: License will continue to apply to the part which is the covered work,
559: but the special requirements of the GNU Affero General Public License,
560: section 13, concerning interaction through a network will apply to the
561: combination as such.
562: 
563:   14. Revised Versions of this License.
564: 
565:   The Free Software Foundation may publish revised and/or new versions of
566: the GNU General Public License from time to time.  Such new versions will
567: be similar in spirit to the present version, but may differ in detail to
568: address new problems or concerns.
569: 
570:   Each version is given a distinguishing version number.  If the
571: Program specifies that a certain numbered version of the GNU General
572: Public License "or any later version" applies to it, you have the
573: option of following the terms and conditions either of that numbered
574: version or of any later version published by the Free Software
575: Foundation.  If the Program does not specify a version number of the
576: GNU General Public License, you may choose any version ever published
577: by the Free Software Foundation.
578: 
579:   If the Program specifies that a proxy can decide which future
580: versions of the GNU General Public License can be used, that proxy's
581: public statement of acceptance of a version permanently authorizes you
582: to choose that version for the Program.
583: 
584:   Later license versions may give you additional or different
585: permissions.  However, no additional obligations are imposed on any
586: author or copyright holder as a result of your choosing to follow a
587: later version.
588: 
589:   15. Disclaimer of Warranty.
590: 
591:   THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
592: APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
593: HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
594: OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
595: THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
596: PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
597: IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
598: ALL 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
603: WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
604: THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
605: GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
606: USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
607: DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
608: PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
609: EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
610: SUCH DAMAGES.
611: 
612:   17. Interpretation of Sections 15 and 16.
613: 
614:   If the disclaimer of warranty and limitation of liability provided
615: above cannot be given local legal effect according to their terms,
616: reviewing courts shall apply local law that most closely approximates
617: an absolute waiver of all civil liability in connection with the
618: Program, unless a warranty or assumption of liability accompanies a
619: copy 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
626: possible use to the public, the best way to achieve this is to make it
627: free 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
630: to attach them to the start of each source file to most effectively
631: state the exclusion of warranty; and each file should have at least
632: the "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: 
650: Also 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
653: notice 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: 
660: The hypothetical commands `show w' and `show c' should show the appropriate
661: parts of the General Public License.  Of course, your program's commands
662: might 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,
665: if any, to sign a "copyright disclaimer" for the program, if necessary.
666: For more information on this, and how to apply and follow the GNU GPL, see
667: <http://www.gnu.org/licenses/>.
668: 
669:   The GNU General Public License does not permit incorporating your program
670: into proprietary programs.  If your program is a subroutine library, you
671: may consider it more useful to permit linking proprietary applications with
672: the library.  If this is what you want to do, use the GNU Lesser General
673: Public License instead of this License.  But first, please read
674: <http://www.gnu.org/philosophy/why-not-lgpl.html>.
675: