1GPL(GNU)                   Free Software Foundation                   GPL(GNU)
2
3
4
5                             GNU GENERAL PUBLIC LICENSE
6                               Version 3, 29 June 2007
7
8       Copyright  (C)  2007  Free  Software Foundation, Inc. <http://fsf.org/>
9       Everyone is permitted to copy and distribute verbatim  copies  of  this
10       license document, but changing it is not allowed.
11
12                                      Preamble
13
14       The GNU General Public License is a free, copyleft license for software
15       and other kinds of works.
16
17       The licenses for most software and other practical works  are  designed
18       to  take away your freedom to share and change the works.  By contrast,
19       the GNU General Public License is intended to guarantee your freedom to
20       share  and  change all versions of a program -- to make sure it remains
21       free software for all its users.  We, the Free Software Foundation, use
22       the  GNU  General  Public  License for most of our software; it applies
23       also to any other work released this way by its authors.  You can apply
24       it to your programs, too.
25
26       When we speak of free software, we are referring to freedom, not price.
27       Our General Public Licenses are designed to make sure that you have the
28       freedom  to  distribute copies of free software (and charge for them if
29       you wish), that you receive source code or can get it if you  want  it,
30       that  you  can change the software or use pieces of it in new free pro‐
31       grams, and that you know you can do these things.
32
33       To protect your rights, we need to  prevent  others  from  denying  you
34       these  rights  or  asking  you to surrender the rights.  Therefore, you
35       have certain responsibilities if you distribute copies of the software,
36       or if you modify it: responsibilities to respect the freedom of others.
37
38       For example, if you distribute copies of such a program, whether gratis
39       or for a fee, you must pass on to the recipients the same freedoms that
40       you  received.   You  must make sure that they, too, receive or can get
41       the source code.  And you must show them these terms so they know their
42       rights.
43
44       Developers that use the GNU GPL protect your rights with two steps: (1)
45       assert copyright on the software, and (2) offer you this License giving
46       you legal permission to copy, distribute and/or modify it.
47
48       For  the  developers' and authors' protection, the GPL clearly explains
49       that there is no warranty for this free software.  For both users'  and
50       authors'  sake,  the  GPL  requires that modified versions be marked as
51       changed, so that their problems will not be attributed  erroneously  to
52       authors of previous versions.
53
54       Some  devices are designed to deny users access to install or run modi‐
55       fied versions of the software inside them,  although  the  manufacturer
56       can do so.  This is fundamentally incompatible with the aim of protect‐
57       ing users' freedom to change the software.  The systematic  pattern  of
58       such abuse occurs in the area of products for individuals to use, which
59       is precisely  where  it  is  most  unacceptable.   Therefore,  we  have
60       designed  this  version  of  the GPL to prohibit the practice for those
61       products.  If such problems arise substantially in  other  domains,  we
62       stand  ready  to  extend this provision to those domains in future ver‐
63       sions of the GPL, as needed to protect the freedom of users.
64
65       Finally, every program is threatened constantly  by  software  patents.
66       States  should  not  allow  patents  to restrict development and use of
67       software on general-purpose computers, but in those that do, we wish to
68       avoid  the  special danger that patents applied to a free program could
69       make it effectively proprietary.  To prevent this, the GPL assures that
70       patents cannot be used to render the program non-free.
71
72       The  precise terms and conditions for copying, distribution and modifi‐
73       cation follow.
74
75                                TERMS AND CONDITIONS
76
77       0. Definitions.
78
79       “This License” refers to version 3 of the GNU General Public License.
80
81       “Copyright” also means copyright-like laws that apply to other kinds of
82       works, such as semiconductor masks.
83
84       “The  Program”  refers  to  any  copyrightable work licensed under this
85       License.  Each licensee is addressed as “you”.  “Licensees” and “recip‐
86       ients” may be individuals or organizations.
87
88       To  “modify” a work means to copy from or adapt all or part of the work
89       in a fashion requiring copyright permission, other than the  making  of
90       an  exact  copy.   The resulting work is called a “modified version” of
91       the earlier work or a work “based on” the earlier work.
92
93       A “covered work” means either the unmodified Program or a work based on
94       the Program.
95
96       To  “propagate”  a work means to do anything with it that, without per‐
97       mission, would make you directly or secondarily liable for infringement
98       under  applicable  copyright  law, except executing it on a computer or
99       modifying a private copy.  Propagation includes  copying,  distribution
100       (with  or without modification), making available to the public, and in
101       some countries other activities as well.
102
103       To “convey” a work means any kind of  propagation  that  enables  other
104       parties  to  make  or  receive  copies.   Mere  interaction with a user
105       through a computer network, with no transfer of a copy, is not  convey‐
106       ing.
107
108       An  interactive  user interface displays “Appropriate Legal Notices” to
109       the extent that it includes a convenient and prominently  visible  fea‐
110       ture  that  (1) displays an appropriate copyright notice, and (2) tells
111       the user that there is no warranty for the work (except to  the  extent
112       that warranties are provided), that licensees may convey the work under
113       this License, and how to view a copy of this License.  If the interface
114       presents  a  list of user commands or options, such as a menu, a promi‐
115       nent item in the list meets this criterion.
116
117       1. Source Code.
118
119       The “source code” for a work means the preferred form of the  work  for
120       making modifications to it.  “Object code” means any non-source form of
121       a work.
122
123       A “Standard Interface” means an interface that either  is  an  official
124       standard  defined  by  a  recognized standards body, or, in the case of
125       interfaces specified for a particular programming language, one that is
126       widely used among developers working in that language.
127
128       The  “System  Libraries”  of an executable work include anything, other
129       than the work as a whole, that (a) is included in the  normal  form  of
130       packaging a Major Component, but which is not part of that Major Compo‐
131       nent, and (b) serves only to enable use of the  work  with  that  Major
132       Component,  or to implement a Standard Interface for which an implemen‐
133       tation is available to the public in source code form.  A “Major Compo‐
134       nent”, in this context, means a major essential component (kernel, win‐
135       dow system, and so on) of the specific operating  system  (if  any)  on
136       which the executable work runs, or a compiler used to produce the work,
137       or an object code interpreter used to run it.
138
139       The “Corresponding Source” for a work in object code form means all the
140       source  code  needed to generate, install, and (for an executable work)
141       run the object code and to modify the work, including scripts  to  con‐
142       trol  those activities.  However, it does not include the work's System
143       Libraries, or general-purpose tools or generally  available  free  pro‐
144       grams  which  are  used  unmodified  in performing those activities but
145       which are not part of the  work.   For  example,  Corresponding  Source
146       includes  interface  definition  files associated with source files for
147       the work, and the source code  for  shared  libraries  and  dynamically
148       linked  subprograms  that the work is specifically designed to require,
149       such as by intimate data communication or control  flow  between  those
150       subprograms and other parts of the work.
151
152       The  Corresponding  Source  need  not  include  anything that users can
153       regenerate automatically from other parts of the Corresponding Source.
154
155       The Corresponding Source for a work in source code form  is  that  same
156       work.
157
158       2. Basic Permissions.
159
160       All rights granted under this License are granted for the term of copy‐
161       right on the Program, and are irrevocable provided  the  stated  condi‐
162       tions  are met.  This License explicitly affirms your unlimited permis‐
163       sion to run the unmodified Program.  The output from running a  covered
164       work  is covered by this License only if the output, given its content,
165       constitutes a covered work.  This License acknowledges your  rights  of
166       fair use or other equivalent, as provided by copyright law.
167
168       You  may  make, run and propagate covered works that you do not convey,
169       without conditions so long as your license otherwise remains in  force.
170       You  may  convey covered works to others for the sole purpose of having
171       them make modifications exclusively for you, or provide you with facil‐
172       ities  for running those works, provided that you comply with the terms
173       of this License in conveying all material for which you do not  control
174       copyright.  Those thus making or running the covered works for you must
175       do so exclusively on your behalf, under your direction and control,  on
176       terms  that  prohibit  them  from making any copies of your copyrighted
177       material outside their relationship with you.
178
179       Conveying under any other circumstances is permitted solely  under  the
180       conditions stated below.  Sublicensing is not allowed; section 10 makes
181       it unnecessary.
182
183       3. Protecting Users' Legal Rights From Anti-Circumvention Law.
184
185       No covered work shall be deemed part of an effective technological mea‐
186       sure  under  any applicable law fulfilling obligations under article 11
187       of the WIPO copyright treaty adopted on 20 December  1996,  or  similar
188       laws prohibiting or restricting circumvention of such measures.
189
190       When  you  convey  a  covered work, you waive any legal power to forbid
191       circumvention of technological measures to the extent  such  circumven‐
192       tion  is  effected by exercising rights under this License with respect
193       to the covered work, and you disclaim any intention to limit  operation
194       or modification of the work as a means of enforcing, against the work's
195       users, your or third parties' legal rights to forbid  circumvention  of
196       technological measures.
197
198       4. Conveying Verbatim Copies.
199
200       You  may  convey  verbatim  copies  of the Program's source code as you
201       receive it, in any medium, provided that you conspicuously  and  appro‐
202       priately  publish  on  each  copy an appropriate copyright notice; keep
203       intact all notices stating that this  License  and  any  non-permissive
204       terms added in accord with section 7 apply to the code; keep intact all
205       notices of the absence of any warranty; and give all recipients a  copy
206       of this License along with the Program.
207
208       You may charge any price or no price for each copy that you convey, and
209       you may offer support or warranty protection for a fee.
210
211       5. Conveying Modified Source Versions.
212
213       You may convey a work based on the Program,  or  the  modifications  to
214       produce it from the Program, in the form of source code under the terms
215       of section 4, provided that you also meet all of these conditions:
216
217       a)  The work must carry prominent notices stating that you modified it,
218           and giving a relevant date.
219
220       b)  The  work  must carry prominent notices stating that it is released
221           under this License and any conditions added under section 7.   This
222           requirement  modifies  the requirement in section 4 to “keep intact
223           all notices”.
224
225       c)  You must license the entire work, as a whole, under this License to
226           anyone  who  comes  into  possession  of a copy.  This License will
227           therefore apply, along with any  applicable  section  7  additional
228           terms,  to  the whole of the work, and all its parts, regardless of
229           how they are packaged.  This License gives no permission to license
230           the  work in any other way, but it does not invalidate such permis‐
231           sion if you have separately received it.
232
233       d)  If the work has interactive  user  interfaces,  each  must  display
234           Appropriate  Legal Notices; however, if the Program has interactive
235           interfaces that do not display Appropriate Legal Notices, your work
236           need not make them do so.
237
238       A  compilation  of  a  covered work with other separate and independent
239       works, which are not by their nature extensions of  the  covered  work,
240       and which are not combined with it such as to form a larger program, in
241       or on a volume of a  storage  or  distribution  medium,  is  called  an
242       “aggregate” if the compilation and its resulting copyright are not used
243       to limit the access or legal rights of the compilation's  users  beyond
244       what  the  individual  works permit.  Inclusion of a covered work in an
245       aggregate does not cause this License to apply to the  other  parts  of
246       the aggregate.
247
248       6. Conveying Non-Source Forms.
249
250       You  may  convey  a covered work in object code form under the terms of
251       sections 4 and 5, provided that you also  convey  the  machine-readable
252       Corresponding  Source  under the terms of this License, in one of these
253       ways:
254
255       a)  Convey the object code in,  or  embodied  in,  a  physical  product
256           (including a physical distribution medium), accompanied by the Cor‐
257           responding Source fixed on a durable  physical  medium  customarily
258           used for software interchange.
259
260       b)  Convey  the  object  code  in,  or  embodied in, a physical product
261           (including a physical distribution medium), accompanied by a  writ‐
262           ten  offer, valid for at least three years and valid for as long as
263           you offer spare parts or customer support for that  product  model,
264           to  give  anyone who possesses the object code either (1) a copy of
265           the Corresponding Source for all the software in the  product  that
266           is  covered by this License, on a durable physical medium customar‐
267           ily used for software interchange, for a price no  more  than  your
268           reasonable  cost of physically performing this conveying of source,
269           or (2) access to copy  the  Corresponding  Source  from  a  network
270           server at no charge.
271
272       c)  Convey  individual  copies  of  the  object code with a copy of the
273           written offer to provide the Corresponding Source.   This  alterna‐
274           tive  is allowed only occasionally and noncommercially, and only if
275           you received the object code with such an  offer,  in  accord  with
276           subsection 6b.
277
278       d)  Convey  the  object code by offering access from a designated place
279           (gratis or for a charge), and offer equivalent access to the Corre‐
280           sponding  Source  in the same way through the same place at no fur‐
281           ther charge.  You need not require recipients to  copy  the  Corre‐
282           sponding  Source  along with the object code.  If the place to copy
283           the object code is a network server, the Corresponding  Source  may
284           be  on  a  different server (operated by you or a third party) that
285           supports equivalent copying facilities, provided you maintain clear
286           directions  next to the object code saying where to find the Corre‐
287           sponding Source.  Regardless of what server hosts the Corresponding
288           Source,  you remain obligated to ensure that it is available for as
289           long as needed to satisfy these requirements.
290
291       e)  Convey the object code using  peer-to-peer  transmission,  provided
292           you  inform  other  peers  where  the object code and Corresponding
293           Source of the work are being offered to the general  public  at  no
294           charge under subsection 6d.
295
296       A  separable  portion of the object code, whose source code is excluded
297       from the Corresponding Source as a System Library, need not be included
298       in conveying the object code work.
299
300       A  “User  Product”  is either (1) a “consumer product”, which means any
301       tangible personal property which is normally used for personal, family,
302       or  household purposes, or (2) anything designed or sold for incorpora‐
303       tion into a dwelling.  In determining whether a product is  a  consumer
304       product,  doubtful cases shall be resolved in favor of coverage.  For a
305       particular product received  by  a  particular  user,  “normally  used”
306       refers  to a typical or common use of that class of product, regardless
307       of the status of the particular user or of the way in which the partic‐
308       ular user actually uses, or expects or is expected to use, the product.
309       A product is a consumer product regardless of whether the  product  has
310       substantial  commercial,  industrial  or non-consumer uses, unless such
311       uses represent the only significant mode of use of the product.
312
313       “Installation Information” for a User Product means any methods, proce‐
314       dures, authorization keys, or other information required to install and
315       execute modified versions of a covered work in that User Product from a
316       modified  version  of  its  Corresponding Source.  The information must
317       suffice to ensure that the continued functioning of the modified object
318       code  is in no case prevented or interfered with solely because modifi‐
319       cation has been made.
320
321       If you convey an object code work under this section in,  or  with,  or
322       specifically  for  use  in, a User Product, and the conveying occurs as
323       part of a transaction in which the right of possession and use  of  the
324       User  Product  is  transferred  to the recipient in perpetuity or for a
325       fixed term (regardless of how the transaction  is  characterized),  the
326       Corresponding Source conveyed under this section must be accompanied by
327       the Installation Information.  But this requirement does not  apply  if
328       neither you nor any third party retains the ability to install modified
329       object code on the  User  Product  (for  example,  the  work  has  been
330       installed in ROM).
331
332       The  requirement to provide Installation Information does not include a
333       requirement to  continue  to  provide  support  service,  warranty,  or
334       updates  for  a work that has been modified or installed by the recipi‐
335       ent, or for  the  User  Product  in  which  it  has  been  modified  or
336       installed.   Access  to  a  network may be denied when the modification
337       itself materially and adversely affects the operation of the network or
338       violates the rules and protocols for communication across the network.
339
340       Corresponding  Source  conveyed, and Installation Information provided,
341       in accord with this section must be in a format that is publicly  docu‐
342       mented  (and  with  an implementation available to the public in source
343       code form), and must require no special password or key for  unpacking,
344       reading or copying.
345
346       7. Additional Terms.
347
348       “Additional  permissions”  are  terms that supplement the terms of this
349       License by making exceptions from one or more of its conditions.  Addi‐
350       tional  permissions  that are applicable to the entire Program shall be
351       treated as though they were included in this  License,  to  the  extent
352       that  they  are  valid under applicable law.  If additional permissions
353       apply only to part of the Program, that part  may  be  used  separately
354       under  those  permissions,  but  the entire Program remains governed by
355       this License without regard to the additional permissions.
356
357       When you convey a copy of a covered work, you may at your option remove
358       any  additional  permissions  from  that  copy, or from any part of it.
359       (Additional permissions may be written to require their own removal  in
360       certain cases when you modify the work.)  You may place additional per‐
361       missions on material, added by you to a covered  work,  for  which  you
362       have or can give appropriate copyright permission.
363
364       Notwithstanding  any  other provision of this License, for material you
365       add to a covered work, you may (if authorized by the copyright  holders
366       of that material) supplement the terms of this License with terms:
367
368       a)  Disclaiming  warranty  or  limiting  liability differently from the
369           terms of sections 15 and 16 of this License; or
370
371       b)  Requiring preservation of specified  reasonable  legal  notices  or
372           author  attributions  in  that material or in the Appropriate Legal
373           Notices displayed by works containing it; or
374
375       c)  Prohibiting misrepresentation of the origin of  that  material,  or
376           requiring that modified versions of such material be marked in rea‐
377           sonable ways as different from the original version; or
378
379       d)  Limiting the use for publicity purposes of names  of  licensors  or
380           authors of the material; or
381
382       e)  Declining to grant rights under trademark law for use of some trade
383           names, trademarks, or service marks; or
384
385       f)  Requiring indemnification of licensors and authors of that material
386           by  anyone  who  conveys  the material (or modified versions of it)
387           with contractual assumptions of liability to the recipient, for any
388           liability  that  these  contractual  assumptions directly impose on
389           those licensors and authors.
390
391       All other  non-permissive  additional  terms  are  considered  “further
392       restrictions”  within the meaning of section 10.  If the Program as you
393       received it, or any part of it, contains a notice stating  that  it  is
394       governed  by  this License along with a term that is a further restric‐
395       tion, you may remove that term.  If a license document contains a  fur‐
396       ther  restriction  but  permits  relicensing  or  conveying  under this
397       License, you may add to a covered work material governed by  the  terms
398       of  that  license  document, provided that the further restriction does
399       not survive such relicensing or conveying.
400
401       If you add terms to a covered work in accord  with  this  section,  you
402       must place, in the relevant source files, a statement of the additional
403       terms that apply to those files, or a notice indicating where  to  find
404       the applicable terms.
405
406       Additional  terms,  permissive  or non-permissive, may be stated in the
407       form of a separately written license,  or  stated  as  exceptions;  the
408       above requirements apply either way.
409
410       8. Termination.
411
412       You may not propagate or modify a covered work except as expressly pro‐
413       vided under this License.  Any attempt otherwise to propagate or modify
414       it  is  void,  and  will automatically terminate your rights under this
415       License (including any patent licenses granted under  the  third  para‐
416       graph of section 11).
417
418       However,  if you cease all violation of this License, then your license
419       from a particular copyright holder  is  reinstated  (a)  provisionally,
420       unless and until the copyright holder explicitly and finally terminates
421       your license, and (b) permanently, if the  copyright  holder  fails  to
422       notify  you  of the violation by some reasonable means prior to 60 days
423       after the cessation.
424
425       Moreover, your license from a particular copyright holder is reinstated
426       permanently  if  the  copyright holder notifies you of the violation by
427       some reasonable means, this is the first time you have received  notice
428       of violation of this License (for any work) from that copyright holder,
429       and you cure the violation prior to 30 days after your receipt  of  the
430       notice.
431
432       Termination  of  your  rights under this section does not terminate the
433       licenses of parties who have received copies or rights from  you  under
434       this  License.  If your rights have been terminated and not permanently
435       reinstated, you do not qualify to receive new  licenses  for  the  same
436       material under section 10.
437
438       9. Acceptance Not Required for Having Copies.
439
440       You  are not required to accept this License in order to receive or run
441       a copy of the Program.  Ancillary propagation of a covered work  occur‐
442       ring  solely  as  a  consequence  of using peer-to-peer transmission to
443       receive a copy likewise does not require acceptance.  However,  nothing
444       other  than  this  License grants you permission to propagate or modify
445       any covered work.  These actions  infringe  copyright  if  you  do  not
446       accept  this License.  Therefore, by modifying or propagating a covered
447       work, you indicate your acceptance of this License to do so.
448
449       10. Automatic Licensing of Downstream Recipients.
450
451       Each time you  convey  a  covered  work,  the  recipient  automatically
452       receives  a  license  from  the  original licensors, to run, modify and
453       propagate that work, subject to this License.  You are not  responsible
454       for enforcing compliance by third parties with this License.
455
456       An  “entity  transaction”  is  a transaction transferring control of an
457       organization, or substantially all assets of  one,  or  subdividing  an
458       organization,  or  merging  organizations.  If propagation of a covered
459       work results from an entity transaction, each party to that transaction
460       who  receives a copy of the work also receives whatever licenses to the
461       work the party's predecessor in interest had or could  give  under  the
462       previous  paragraph,  plus  a  right to possession of the Corresponding
463       Source of the work from the predecessor in interest, if the predecessor
464       has it or can get it with reasonable efforts.
465
466       You  may  not  impose  any  further restrictions on the exercise of the
467       rights granted or affirmed under this License.  For  example,  you  may
468       not  impose  a  license  fee,  royalty, or other charge for exercise of
469       rights granted under this License, and you may not initiate  litigation
470       (including  a  cross-claim  or counterclaim in a lawsuit) alleging that
471       any patent claim is infringed by making, using, selling,  offering  for
472       sale, or importing the Program or any portion of it.
473
474       11. Patents.
475
476       A  “contributor”  is  a  copyright holder who authorizes use under this
477       License of the Program or a work on which the Program  is  based.   The
478       work thus licensed is called the contributor's “contributor version”.
479
480       A  contributor's  “essential patent claims” are all patent claims owned
481       or controlled by the contributor, whether already acquired or hereafter
482       acquired,  that  would  be  infringed by some manner, permitted by this
483       License, of making, using, or selling its contributor version,  but  do
484       not  include  claims  that  would be infringed only as a consequence of
485       further modification of the contributor version.  For purposes of  this
486       definition, “control” includes the right to grant patent sublicenses in
487       a manner consistent with the requirements of this License.
488
489       Each contributor grants you a  non-exclusive,  worldwide,  royalty-free
490       patent  license  under  the  contributor's  essential patent claims, to
491       make, use, sell, offer for sale, import and otherwise run,  modify  and
492       propagate the contents of its contributor version.
493
494       In  the  following  three paragraphs, a “patent license” is any express
495       agreement or commitment, however denominated, not to enforce  a  patent
496       (such  as an express permission to practice a patent or covenant not to
497       sue for patent infringement).  To “grant” such a patent  license  to  a
498       party  means  to  make such an agreement or commitment not to enforce a
499       patent against the party.
500
501       If you convey a covered work, knowingly relying on  a  patent  license,
502       and the Corresponding Source of the work is not available for anyone to
503       copy, free of charge and under the terms of  this  License,  through  a
504       publicly  available  network  server or other readily accessible means,
505       then you must either (1) cause the Corresponding Source to be so avail‐
506       able,  or  (2) arrange to deprive yourself of the benefit of the patent
507       license for this particular work, or (3) arrange, in a  manner  consis‐
508       tent  with  the  requirements  of  this  License,  to extend the patent
509       license to downstream recipients.  “Knowingly relying” means  you  have
510       actual  knowledge  that, but for the patent license, your conveying the
511       covered work in a country, or your recipient's use of the covered  work
512       in  a  country, would infringe one or more identifiable patents in that
513       country that you have reason to believe are valid.
514
515       If, pursuant to or in connection with a single transaction or  arrange‐
516       ment,  you  convey,  or propagate by procuring conveyance of, a covered
517       work, and grant a patent license to some of the parties  receiving  the
518       covered  work  authorizing  them  to use, propagate, modify or convey a
519       specific copy of the covered work, then the patent license you grant is
520       automatically  extended to all recipients of the covered work and works
521       based on it.
522
523       A patent license is “discriminatory” if it does not include within  the
524       scope  of its coverage, prohibits the exercise of, or is conditioned on
525       the non-exercise of one or more of the  rights  that  are  specifically
526       granted  under  this License.  You may not convey a covered work if you
527       are a party to an arrangement with a third party that is in  the  busi‐
528       ness  of  distributing  software,  under  which you make payment to the
529       third party based on the extent of your activity of conveying the work,
530       and under which the third party grants, to any of the parties who would
531       receive the covered work from you, a discriminatory patent license  (a)
532       in  connection  with  copies  of  the  covered work conveyed by you (or
533       copies made from those copies), or (b) primarily for and in  connection
534       with  specific  products or compilations that contain the covered work,
535       unless you entered into that arrangement, or that  patent  license  was
536       granted, prior to 28 March 2007.
537
538       Nothing in this License shall be construed as excluding or limiting any
539       implied license or other defenses to infringement that may otherwise be
540       available to you under applicable patent law.
541
542       12. No Surrender of Others' Freedom.
543
544       If  conditions are imposed on you (whether by court order, agreement or
545       otherwise) that contradict the conditions of this License, they do  not
546       excuse you from the conditions of this License.  If you cannot convey a
547       covered work so as to satisfy  simultaneously  your  obligations  under
548       this License and any other pertinent obligations, then as a consequence
549       you may not convey it at all.  For example, if you agree to terms  that
550       obligate  you  to collect a royalty for further conveying from those to
551       whom you convey the Program, the only way you could satisfy both  those
552       terms  and this License would be to refrain entirely from conveying the
553       Program.
554
555       13. Use with the GNU Affero General Public License.
556
557       Notwithstanding any other provision of this License, you  have  permis‐
558       sion  to  link  or  combine any covered work with a work licensed under
559       version 3 of the GNU Affero General Public License into a  single  com‐
560       bined  work,  and  to  convey  the  resulting  work.  The terms of this
561       License will continue to apply to the part which is the  covered  work,
562       but  the special requirements of the GNU Affero General Public License,
563       section 13, concerning interaction through a network will apply to  the
564       combination as such.
565
566       14. Revised Versions of this License.
567
568       The Free Software Foundation may publish revised and/or new versions of
569       the GNU General Public License from time to time.   Such  new  versions
570       will  be  similar  in  spirit to the present version, but may differ in
571       detail to address new problems or concerns.
572
573       Each version is given a distinguishing version number.  If the  Program
574       specifies  that  a  certain  numbered version of the GNU General Public
575       License “or any later version” applies to it, you have  the  option  of
576       following  the  terms and conditions either of that numbered version or
577       of any later version published by the Free Software Foundation.  If the
578       Program  does  not  specify  a version number of the GNU General Public
579       License, you may choose any version ever published by the Free Software
580       Foundation.
581
582       If  the Program specifies that a proxy can decide which future versions
583       of the GNU General Public License can  be  used,  that  proxy's  public
584       statement  of  acceptance  of  a  version permanently authorizes you to
585       choose that version for the Program.
586
587       Later license versions may give you  additional  or  different  permis‐
588       sions.  However, no additional obligations are imposed on any author or
589       copyright holder as a result of your choosing to follow  a  later  ver‐
590       sion.
591
592       15. Disclaimer of Warranty.
593
594       THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLI‐
595       CABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLD‐
596       ERS  AND/OR  OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY
597       OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,  BUT  NOT  LIMITED
598       TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTIC‐
599       ULAR PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
600       PROGRAM  IS  WITH  YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME
601       THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
602
603       16. Limitation of Liability.
604
605       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO  IN  WRITING
606       WILL  ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CON‐
607       VEYS THE PROGRAM AS PERMITTED ABOVE, BE  LIABLE  TO  YOU  FOR  DAMAGES,
608       INCLUDING  ANY  GENERAL,  SPECIAL,  INCIDENTAL OR CONSEQUENTIAL DAMAGES
609       ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM  (INCLUDING  BUT
610       NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES
611       SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO  OPER‐
612       ATE  WITH  ANY  OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS
613       BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
614
615       17. Interpretation of Sections 15 and 16.
616
617       If the disclaimer of warranty  and  limitation  of  liability  provided
618       above  cannot  be  given  local  legal effect according to their terms,
619       reviewing courts shall apply local law that most  closely  approximates
620       an  absolute  waiver of all civil liability in connection with the Pro‐
621       gram, unless a warranty or assumption of liability accompanies  a  copy
622       of the Program in return for a fee.
623
624                             END OF TERMS AND CONDITIONS
625
626                    How to Apply These Terms to Your New Programs
627
628       If  you  develop  a  new program, and you want it to be of the greatest
629       possible use to the public, the best way to achieve this is to make  it
630       free  software  which  everyone can redistribute and change under these
631       terms.
632
633       To do so, attach the following notices to the program.  It is safest to
634       attach  them to the start of each source file to most effectively state
635       the exclusion of warranty; and each  file  should  have  at  least  the
636       “copyright” line and a pointer to where the full notice is found.
637
638           <  one  line to give the program's name and a brief idea of what it
639           does.  >
640           Copyright (C) < year > < name of author >
641
642           This program is free software: you can redistribute it and/or  mod‐
643           ify  it  under  the terms of the GNU General Public License as pub‐
644           lished by the Free Software Foundation, either  version  3  of  the
645           License, or (at your option) any later version.
646
647           This program is distributed in the hope that it will be useful, but
648           WITHOUT ANY WARRANTY; without even the  implied  warranty  of  MER‐
649           CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Gen‐
650           eral Public License for more details.
651
652           You should have received a copy of the GNU General  Public  License
653           along      with      this      program.       If      not,      see
654           <http://www.gnu.org/licenses/>.
655
656       Also add information on how to contact  you  by  electronic  and  paper
657       mail.
658
659       If the program does terminal interaction, make it output a short notice
660       like this when it starts in an interactive mode:
661
662           <program>  Copyright (C) <year>  <name of author>
663           This program comes with ABSOLUTELY NO WARRANTY;  for  details  type
664           “show  w”.   This  is  free software, and you are welcome to redis‐
665           tribute it under certain conditions; type “show c” for details.
666
667       The hypothetical commands “show w” and “show c” should show the  appro‐
668       priate  parts of the General Public License.  Of course, your program's
669       commands might be different; for a GUI  interface,  you  would  use  an
670       “about box”.
671
672       You  should  also  get  your  employer (if you work as a programmer) or
673       school, if any, to sign a “copyright disclaimer” for  the  program,  if
674       necessary.   For  more information on this, and how to apply and follow
675       the GNU GPL, see <http://www.gnu.org/licenses/>.
676
677       The GNU General Public License does not permit incorporating your  pro‐
678       gram  into  proprietary  programs.   If  your  program  is a subroutine
679       library, you may consider it more useful to permit linking  proprietary
680       applications with the library.  If this is what you want to do, use the
681       GNU Lesser General Public License instead of this License.  But  first,
682       please read <http://www.gnu.org/philosophy/why-not-lgpl.html>.
683
684
685
686GNU                                   GPL                             GPL(GNU)
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