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        <title>GNU GENERAL PUBLIC LICENSE</title>
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358 daniel-mar 38
<!-- https://www.gnu.org/licenses/gpl.html -->
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<h3 style="text-align: center;">GNU GENERAL PUBLIC LICENSE</h3>
41
<p style="text-align: center;">Version 3, 29 June 2007</p>
42
 
43
<p>Copyright &copy; 2007 Free Software Foundation, Inc.
44
 &lt;<a href="https://fsf.org/">https://fsf.org/</a>&gt;</p><p>
45
 Everyone is permitted to copy and distribute verbatim copies
46
 of this license document, but changing it is not allowed.</p>
47
 
48
<h3><a name="preamble"></a>Preamble</h3>
49
 
50
<p>The GNU General Public License is a free, copyleft license for
51
software and other kinds of works.</p>
52
 
53
<p>The licenses for most software and other practical works are designed
54
to take away your freedom to share and change the works.  By contrast,
55
the GNU General Public License is intended to guarantee your freedom to
56
share and change all versions of a program--to make sure it remains free
57
software for all its users.  We, the Free Software Foundation, use the
58
GNU General Public License for most of our software; it applies also to
59
any other work released this way by its authors.  You can apply it to
60
your programs, too.</p>
61
 
62
<p>When we speak of free software, we are referring to freedom, not
63
price.  Our General Public Licenses are designed to make sure that you
64
have the freedom to distribute copies of free software (and charge for
65
them if you wish), that you receive source code or can get it if you
66
want it, that you can change the software or use pieces of it in new
67
free programs, and that you know you can do these things.</p>
68
 
69
<p>To protect your rights, we need to prevent others from denying you
70
these rights or asking you to surrender the rights.  Therefore, you have
71
certain responsibilities if you distribute copies of the software, or if
72
you modify it: responsibilities to respect the freedom of others.</p>
73
 
74
<p>For example, if you distribute copies of such a program, whether
75
gratis or for a fee, you must pass on to the recipients the same
76
freedoms that you received.  You must make sure that they, too, receive
77
or can get the source code.  And you must show them these terms so they
78
know their rights.</p>
79
 
80
<p>Developers that use the GNU GPL protect your rights with two steps:
81
(1) assert copyright on the software, and (2) offer you this License
82
giving you legal permission to copy, distribute and/or modify it.</p>
83
 
84
<p>For the developers' and authors' protection, the GPL clearly explains
85
that there is no warranty for this free software.  For both users' and
86
authors' sake, the GPL requires that modified versions be marked as
87
changed, so that their problems will not be attributed erroneously to
88
authors of previous versions.</p>
89
 
90
<p>Some devices are designed to deny users access to install or run
91
modified versions of the software inside them, although the manufacturer
92
can do so.  This is fundamentally incompatible with the aim of
93
protecting users' freedom to change the software.  The systematic
94
pattern of such abuse occurs in the area of products for individuals to
95
use, which is precisely where it is most unacceptable.  Therefore, we
96
have designed this version of the GPL to prohibit the practice for those
97
products.  If such problems arise substantially in other domains, we
98
stand ready to extend this provision to those domains in future versions
99
of the GPL, as needed to protect the freedom of users.</p>
100
 
101
<p>Finally, every program is threatened constantly by software patents.
102
States should not allow patents to restrict development and use of
103
software on general-purpose computers, but in those that do, we wish to
104
avoid the special danger that patents applied to a free program could
105
make it effectively proprietary.  To prevent this, the GPL assures that
106
patents cannot be used to render the program non-free.</p>
107
 
108
<p>The precise terms and conditions for copying, distribution and
109
modification follow.</p>
110
 
111
<h3><a name="terms"></a>TERMS AND CONDITIONS</h3>
112
 
113
<h4><a name="section0"></a>0. Definitions.</h4>
114
 
115
<p>&ldquo;This License&rdquo; refers to version 3 of the GNU General Public License.</p>
116
 
117
<p>&ldquo;Copyright&rdquo; also means copyright-like laws that apply to other kinds of
118
works, such as semiconductor masks.</p>
119
 
120
<p>&ldquo;The Program&rdquo; refers to any copyrightable work licensed under this
121
License.  Each licensee is addressed as &ldquo;you&rdquo;.  &ldquo;Licensees&rdquo; and
122
&ldquo;recipients&rdquo; may be individuals or organizations.</p>
123
 
124
<p>To &ldquo;modify&rdquo; a work means to copy from or adapt all or part of the work
125
in a fashion requiring copyright permission, other than the making of an
126
exact copy.  The resulting work is called a &ldquo;modified version&rdquo; of the
127
earlier work or a work &ldquo;based on&rdquo; the earlier work.</p>
128
 
129
<p>A &ldquo;covered work&rdquo; means either the unmodified Program or a work based
130
on the Program.</p>
131
 
132
<p>To &ldquo;propagate&rdquo; a work means to do anything with it that, without
133
permission, would make you directly or secondarily liable for
134
infringement under applicable copyright law, except executing it on a
135
computer or modifying a private copy.  Propagation includes copying,
136
distribution (with or without modification), making available to the
137
public, and in some countries other activities as well.</p>
138
 
139
<p>To &ldquo;convey&rdquo; a work means any kind of propagation that enables other
140
parties to make or receive copies.  Mere interaction with a user through
141
a computer network, with no transfer of a copy, is not conveying.</p>
142
 
143
<p>An interactive user interface displays &ldquo;Appropriate Legal Notices&rdquo;
144
to the extent that it includes a convenient and prominently visible
145
feature that (1) displays an appropriate copyright notice, and (2)
146
tells the user that there is no warranty for the work (except to the
147
extent that warranties are provided), that licensees may convey the
148
work under this License, and how to view a copy of this License.  If
149
the interface presents a list of user commands or options, such as a
150
menu, a prominent item in the list meets this criterion.</p>
151
 
152
<h4><a name="section1"></a>1. Source Code.</h4>
153
 
154
<p>The &ldquo;source code&rdquo; for a work means the preferred form of the work
155
for making modifications to it.  &ldquo;Object code&rdquo; means any non-source
156
form of a work.</p>
157
 
158
<p>A &ldquo;Standard Interface&rdquo; means an interface that either is an official
159
standard defined by a recognized standards body, or, in the case of
160
interfaces specified for a particular programming language, one that
161
is widely used among developers working in that language.</p>
162
 
163
<p>The &ldquo;System Libraries&rdquo; of an executable work include anything, other
164
than the work as a whole, that (a) is included in the normal form of
165
packaging a Major Component, but which is not part of that Major
166
Component, and (b) serves only to enable use of the work with that
167
Major Component, or to implement a Standard Interface for which an
168
implementation is available to the public in source code form.  A
169
&ldquo;Major Component&rdquo;, in this context, means a major essential component
170
(kernel, window system, and so on) of the specific operating system
171
(if any) on which the executable work runs, or a compiler used to
172
produce the work, or an object code interpreter used to run it.</p>
173
 
174
<p>The &ldquo;Corresponding Source&rdquo; for a work in object code form means all
175
the source code needed to generate, install, and (for an executable
176
work) run the object code and to modify the work, including scripts to
177
control those activities.  However, it does not include the work's
178
System Libraries, or general-purpose tools or generally available free
179
programs which are used unmodified in performing those activities but
180
which are not part of the work.  For example, Corresponding Source
181
includes interface definition files associated with source files for
182
the work, and the source code for shared libraries and dynamically
183
linked subprograms that the work is specifically designed to require,
184
such as by intimate data communication or control flow between those
185
subprograms and other parts of the work.</p>
186
 
187
<p>The Corresponding Source need not include anything that users
188
can regenerate automatically from other parts of the Corresponding
189
Source.</p>
190
 
191
<p>The Corresponding Source for a work in source code form is that
192
same work.</p>
193
 
194
<h4><a name="section2"></a>2. Basic Permissions.</h4>
195
 
196
<p>All rights granted under this License are granted for the term of
197
copyright on the Program, and are irrevocable provided the stated
198
conditions are met.  This License explicitly affirms your unlimited
199
permission to run the unmodified Program.  The output from running a
200
covered work is covered by this License only if the output, given its
201
content, constitutes a covered work.  This License acknowledges your
202
rights of fair use or other equivalent, as provided by copyright law.</p>
203
 
204
<p>You may make, run and propagate covered works that you do not
205
convey, without conditions so long as your license otherwise remains
206
in force.  You may convey covered works to others for the sole purpose
207
of having them make modifications exclusively for you, or provide you
208
with facilities for running those works, provided that you comply with
209
the terms of this License in conveying all material for which you do
210
not control copyright.  Those thus making or running the covered works
211
for you must do so exclusively on your behalf, under your direction
212
and control, on terms that prohibit them from making any copies of
213
your copyrighted material outside their relationship with you.</p>
214
 
215
<p>Conveying under any other circumstances is permitted solely under
216
the conditions stated below.  Sublicensing is not allowed; section 10
217
makes it unnecessary.</p>
218
 
219
<h4><a name="section3"></a>3. Protecting Users' Legal Rights From Anti-Circumvention Law.</h4>
220
 
221
<p>No covered work shall be deemed part of an effective technological
222
measure under any applicable law fulfilling obligations under article
223
11 of the WIPO copyright treaty adopted on 20 December 1996, or
224
similar laws prohibiting or restricting circumvention of such
225
measures.</p>
226
 
227
<p>When you convey a covered work, you waive any legal power to forbid
228
circumvention of technological measures to the extent such circumvention
229
is effected by exercising rights under this License with respect to
230
the covered work, and you disclaim any intention to limit operation or
231
modification of the work as a means of enforcing, against the work's
232
users, your or third parties' legal rights to forbid circumvention of
233
technological measures.</p>
234
 
235
<h4><a name="section4"></a>4. Conveying Verbatim Copies.</h4>
236
 
237
<p>You may convey verbatim copies of the Program's source code as you
238
receive it, in any medium, provided that you conspicuously and
239
appropriately publish on each copy an appropriate copyright notice;
240
keep intact all notices stating that this License and any
241
non-permissive terms added in accord with section 7 apply to the code;
242
keep intact all notices of the absence of any warranty; and give all
243
recipients a copy of this License along with the Program.</p>
244
 
245
<p>You may charge any price or no price for each copy that you convey,
246
and you may offer support or warranty protection for a fee.</p>
247
 
248
<h4><a name="section5"></a>5. Conveying Modified Source Versions.</h4>
249
 
250
<p>You may convey a work based on the Program, or the modifications to
251
produce it from the Program, in the form of source code under the
252
terms of section 4, provided that you also meet all of these conditions:</p>
253
 
254
<ul>
255
<li>a) The work must carry prominent notices stating that you modified
256
    it, and giving a relevant date.</li>
257
 
258
<li>b) The work must carry prominent notices stating that it is
259
    released under this License and any conditions added under section
260
    7.  This requirement modifies the requirement in section 4 to
261
    &ldquo;keep intact all notices&rdquo;.</li>
262
 
263
<li>c) You must license the entire work, as a whole, under this
264
    License to anyone who comes into possession of a copy.  This
265
    License will therefore apply, along with any applicable section 7
266
    additional terms, to the whole of the work, and all its parts,
267
    regardless of how they are packaged.  This License gives no
268
    permission to license the work in any other way, but it does not
269
    invalidate such permission if you have separately received it.</li>
270
 
271
<li>d) If the work has interactive user interfaces, each must display
272
    Appropriate Legal Notices; however, if the Program has interactive
273
    interfaces that do not display Appropriate Legal Notices, your
274
    work need not make them do so.</li>
275
</ul>
276
 
277
<p>A compilation of a covered work with other separate and independent
278
works, which are not by their nature extensions of the covered work,
279
and which are not combined with it such as to form a larger program,
280
in or on a volume of a storage or distribution medium, is called an
281
&ldquo;aggregate&rdquo; if the compilation and its resulting copyright are not
282
used to limit the access or legal rights of the compilation's users
283
beyond what the individual works permit.  Inclusion of a covered work
284
in an aggregate does not cause this License to apply to the other
285
parts of the aggregate.</p>
286
 
287
<h4><a name="section6"></a>6. Conveying Non-Source Forms.</h4>
288
 
289
<p>You may convey a covered work in object code form under the terms
290
of sections 4 and 5, provided that you also convey the
291
machine-readable Corresponding Source under the terms of this License,
292
in one of these ways:</p>
293
 
294
<ul>
295
<li>a) Convey the object code in, or embodied in, a physical product
296
    (including a physical distribution medium), accompanied by the
297
    Corresponding Source fixed on a durable physical medium
298
    customarily used for software interchange.</li>
299
 
300
<li>b) Convey the object code in, or embodied in, a physical product
301
    (including a physical distribution medium), accompanied by a
302
    written offer, valid for at least three years and valid for as
303
    long as you offer spare parts or customer support for that product
304
    model, to give anyone who possesses the object code either (1) a
305
    copy of the Corresponding Source for all the software in the
306
    product that is covered by this License, on a durable physical
307
    medium customarily used for software interchange, for a price no
308
    more than your reasonable cost of physically performing this
309
    conveying of source, or (2) access to copy the
310
    Corresponding Source from a network server at no charge.</li>
311
 
312
<li>c) Convey individual copies of the object code with a copy of the
313
    written offer to provide the Corresponding Source.  This
314
    alternative is allowed only occasionally and noncommercially, and
315
    only if you received the object code with such an offer, in accord
316
    with subsection 6b.</li>
317
 
318
<li>d) Convey the object code by offering access from a designated
319
    place (gratis or for a charge), and offer equivalent access to the
320
    Corresponding Source in the same way through the same place at no
321
    further charge.  You need not require recipients to copy the
322
    Corresponding Source along with the object code.  If the place to
323
    copy the object code is a network server, the Corresponding Source
324
    may be on a different server (operated by you or a third party)
325
    that supports equivalent copying facilities, provided you maintain
326
    clear directions next to the object code saying where to find the
327
    Corresponding Source.  Regardless of what server hosts the
328
    Corresponding Source, you remain obligated to ensure that it is
329
    available for as long as needed to satisfy these requirements.</li>
330
 
331
<li>e) Convey the object code using peer-to-peer transmission, provided
332
    you inform other peers where the object code and Corresponding
333
    Source of the work are being offered to the general public at no
334
    charge under subsection 6d.</li>
335
</ul>
336
 
337
<p>A separable portion of the object code, whose source code is excluded
338
from the Corresponding Source as a System Library, need not be
339
included in conveying the object code work.</p>
340
 
341
<p>A &ldquo;User Product&rdquo; is either (1) a &ldquo;consumer product&rdquo;, which means any
342
tangible personal property which is normally used for personal, family,
343
or household purposes, or (2) anything designed or sold for incorporation
344
into a dwelling.  In determining whether a product is a consumer product,
345
doubtful cases shall be resolved in favor of coverage.  For a particular
346
product received by a particular user, &ldquo;normally used&rdquo; refers to a
347
typical or common use of that class of product, regardless of the status
348
of the particular user or of the way in which the particular user
349
actually uses, or expects or is expected to use, the product.  A product
350
is a consumer product regardless of whether the product has substantial
351
commercial, industrial or non-consumer uses, unless such uses represent
352
the only significant mode of use of the product.</p>
353
 
354
<p>&ldquo;Installation Information&rdquo; for a User Product means any methods,
355
procedures, authorization keys, or other information required to install
356
and execute modified versions of a covered work in that User Product from
357
a modified version of its Corresponding Source.  The information must
358
suffice to ensure that the continued functioning of the modified object
359
code is in no case prevented or interfered with solely because
360
modification has been made.</p>
361
 
362
<p>If you convey an object code work under this section in, or with, or
363
specifically for use in, a User Product, and the conveying occurs as
364
part of a transaction in which the right of possession and use of the
365
User Product is transferred to the recipient in perpetuity or for a
366
fixed term (regardless of how the transaction is characterized), the
367
Corresponding Source conveyed under this section must be accompanied
368
by the Installation Information.  But this requirement does not apply
369
if neither you nor any third party retains the ability to install
370
modified object code on the User Product (for example, the work has
371
been installed in ROM).</p>
372
 
373
<p>The requirement to provide Installation Information does not include a
374
requirement to continue to provide support service, warranty, or updates
375
for a work that has been modified or installed by the recipient, or for
376
the User Product in which it has been modified or installed.  Access to a
377
network may be denied when the modification itself materially and
378
adversely affects the operation of the network or violates the rules and
379
protocols for communication across the network.</p>
380
 
381
<p>Corresponding Source conveyed, and Installation Information provided,
382
in accord with this section must be in a format that is publicly
383
documented (and with an implementation available to the public in
384
source code form), and must require no special password or key for
385
unpacking, reading or copying.</p>
386
 
387
<h4><a name="section7"></a>7. Additional Terms.</h4>
388
 
389
<p>&ldquo;Additional permissions&rdquo; are terms that supplement the terms of this
390
License by making exceptions from one or more of its conditions.
391
Additional permissions that are applicable to the entire Program shall
392
be treated as though they were included in this License, to the extent
393
that they are valid under applicable law.  If additional permissions
394
apply only to part of the Program, that part may be used separately
395
under those permissions, but the entire Program remains governed by
396
this License without regard to the additional permissions.</p>
397
 
398
<p>When you convey a copy of a covered work, you may at your option
399
remove any additional permissions from that copy, or from any part of
400
it.  (Additional permissions may be written to require their own
401
removal in certain cases when you modify the work.)  You may place
402
additional permissions on material, added by you to a covered work,
403
for which you have or can give appropriate copyright permission.</p>
404
 
405
<p>Notwithstanding any other provision of this License, for material you
406
add to a covered work, you may (if authorized by the copyright holders of
407
that material) supplement the terms of this License with terms:</p>
408
 
409
<ul>
410
<li>a) Disclaiming warranty or limiting liability differently from the
411
    terms of sections 15 and 16 of this License; or</li>
412
 
413
<li>b) Requiring preservation of specified reasonable legal notices or
414
    author attributions in that material or in the Appropriate Legal
415
    Notices displayed by works containing it; or</li>
416
 
417
<li>c) Prohibiting misrepresentation of the origin of that material, or
418
    requiring that modified versions of such material be marked in
419
    reasonable ways as different from the original version; or</li>
420
 
421
<li>d) Limiting the use for publicity purposes of names of licensors or
422
    authors of the material; or</li>
423
 
424
<li>e) Declining to grant rights under trademark law for use of some
425
    trade names, trademarks, or service marks; or</li>
426
 
427
<li>f) Requiring indemnification of licensors and authors of that
428
    material by anyone who conveys the material (or modified versions of
429
    it) with contractual assumptions of liability to the recipient, for
430
    any liability that these contractual assumptions directly impose on
431
    those licensors and authors.</li>
432
</ul>
433
 
434
<p>All other non-permissive additional terms are considered &ldquo;further
435
restrictions&rdquo; within the meaning of section 10.  If the Program as you
436
received it, or any part of it, contains a notice stating that it is
437
governed by this License along with a term that is a further
438
restriction, you may remove that term.  If a license document contains
439
a further restriction but permits relicensing or conveying under this
440
License, you may add to a covered work material governed by the terms
441
of that license document, provided that the further restriction does
442
not survive such relicensing or conveying.</p>
443
 
444
<p>If you add terms to a covered work in accord with this section, you
445
must place, in the relevant source files, a statement of the
446
additional terms that apply to those files, or a notice indicating
447
where to find the applicable terms.</p>
448
 
449
<p>Additional terms, permissive or non-permissive, may be stated in the
450
form of a separately written license, or stated as exceptions;
451
the above requirements apply either way.</p>
452
 
453
<h4><a name="section8"></a>8. Termination.</h4>
454
 
455
<p>You may not propagate or modify a covered work except as expressly
456
provided under this License.  Any attempt otherwise to propagate or
457
modify it is void, and will automatically terminate your rights under
458
this License (including any patent licenses granted under the third
459
paragraph of section 11).</p>
460
 
461
<p>However, if you cease all violation of this License, then your
462
license from a particular copyright holder is reinstated (a)
463
provisionally, unless and until the copyright holder explicitly and
464
finally terminates your license, and (b) permanently, if the copyright
465
holder fails to notify you of the violation by some reasonable means
466
prior to 60 days after the cessation.</p>
467
 
468
<p>Moreover, your license from a particular copyright holder is
469
reinstated permanently if the copyright holder notifies you of the
470
violation by some reasonable means, this is the first time you have
471
received notice of violation of this License (for any work) from that
472
copyright holder, and you cure the violation prior to 30 days after
473
your receipt of the notice.</p>
474
 
475
<p>Termination of your rights under this section does not terminate the
476
licenses of parties who have received copies or rights from you under
477
this License.  If your rights have been terminated and not permanently
478
reinstated, you do not qualify to receive new licenses for the same
479
material under section 10.</p>
480
 
481
<h4><a name="section9"></a>9. Acceptance Not Required for Having Copies.</h4>
482
 
483
<p>You are not required to accept this License in order to receive or
484
run a copy of the Program.  Ancillary propagation of a covered work
485
occurring solely as a consequence of using peer-to-peer transmission
486
to receive a copy likewise does not require acceptance.  However,
487
nothing other than this License grants you permission to propagate or
488
modify any covered work.  These actions infringe copyright if you do
489
not accept this License.  Therefore, by modifying or propagating a
490
covered work, you indicate your acceptance of this License to do so.</p>
491
 
492
<h4><a name="section10"></a>10. Automatic Licensing of Downstream Recipients.</h4>
493
 
494
<p>Each time you convey a covered work, the recipient automatically
495
receives a license from the original licensors, to run, modify and
496
propagate that work, subject to this License.  You are not responsible
497
for enforcing compliance by third parties with this License.</p>
498
 
499
<p>An &ldquo;entity transaction&rdquo; is a transaction transferring control of an
500
organization, or substantially all assets of one, or subdividing an
501
organization, or merging organizations.  If propagation of a covered
502
work results from an entity transaction, each party to that
503
transaction who receives a copy of the work also receives whatever
504
licenses to the work the party's predecessor in interest had or could
505
give under the previous paragraph, plus a right to possession of the
506
Corresponding Source of the work from the predecessor in interest, if
507
the predecessor has it or can get it with reasonable efforts.</p>
508
 
509
<p>You may not impose any further restrictions on the exercise of the
510
rights granted or affirmed under this License.  For example, you may
511
not impose a license fee, royalty, or other charge for exercise of
512
rights granted under this License, and you may not initiate litigation
513
(including a cross-claim or counterclaim in a lawsuit) alleging that
514
any patent claim is infringed by making, using, selling, offering for
515
sale, or importing the Program or any portion of it.</p>
516
 
517
<h4><a name="section11"></a>11. Patents.</h4>
518
 
519
<p>A &ldquo;contributor&rdquo; is a copyright holder who authorizes use under this
520
License of the Program or a work on which the Program is based.  The
521
work thus licensed is called the contributor's &ldquo;contributor version&rdquo;.</p>
522
 
523
<p>A contributor's &ldquo;essential patent claims&rdquo; are all patent claims
524
owned or controlled by the contributor, whether already acquired or
525
hereafter acquired, that would be infringed by some manner, permitted
526
by this License, of making, using, or selling its contributor version,
527
but do not include claims that would be infringed only as a
528
consequence of further modification of the contributor version.  For
529
purposes of this definition, &ldquo;control&rdquo; includes the right to grant
530
patent sublicenses in a manner consistent with the requirements of
531
this License.</p>
532
 
533
<p>Each contributor grants you a non-exclusive, worldwide, royalty-free
534
patent license under the contributor's essential patent claims, to
535
make, use, sell, offer for sale, import and otherwise run, modify and
536
propagate the contents of its contributor version.</p>
537
 
538
<p>In the following three paragraphs, a &ldquo;patent license&rdquo; is any express
539
agreement or commitment, however denominated, not to enforce a patent
540
(such as an express permission to practice a patent or covenant not to
541
sue for patent infringement).  To &ldquo;grant&rdquo; such a patent license to a
542
party means to make such an agreement or commitment not to enforce a
543
patent against the party.</p>
544
 
545
<p>If you convey a covered work, knowingly relying on a patent license,
546
and the Corresponding Source of the work is not available for anyone
547
to copy, free of charge and under the terms of this License, through a
548
publicly available network server or other readily accessible means,
549
then you must either (1) cause the Corresponding Source to be so
550
available, or (2) arrange to deprive yourself of the benefit of the
551
patent license for this particular work, or (3) arrange, in a manner
552
consistent with the requirements of this License, to extend the patent
553
license to downstream recipients.  &ldquo;Knowingly relying&rdquo; means you have
554
actual knowledge that, but for the patent license, your conveying the
555
covered work in a country, or your recipient's use of the covered work
556
in a country, would infringe one or more identifiable patents in that
557
country that you have reason to believe are valid.</p>
558
 
559
<p>If, pursuant to or in connection with a single transaction or
560
arrangement, you convey, or propagate by procuring conveyance of, a
561
covered work, and grant a patent license to some of the parties
562
receiving the covered work authorizing them to use, propagate, modify
563
or convey a specific copy of the covered work, then the patent license
564
you grant is automatically extended to all recipients of the covered
565
work and works based on it.</p>
566
 
567
<p>A patent license is &ldquo;discriminatory&rdquo; if it does not include within
568
the scope of its coverage, prohibits the exercise of, or is
569
conditioned on the non-exercise of one or more of the rights that are
570
specifically granted under this License.  You may not convey a covered
571
work if you are a party to an arrangement with a third party that is
572
in the business of distributing software, under which you make payment
573
to the third party based on the extent of your activity of conveying
574
the work, and under which the third party grants, to any of the
575
parties who would receive the covered work from you, a discriminatory
576
patent license (a) in connection with copies of the covered work
577
conveyed by you (or copies made from those copies), or (b) primarily
578
for and in connection with specific products or compilations that
579
contain the covered work, unless you entered into that arrangement,
580
or that patent license was granted, prior to 28 March 2007.</p>
581
 
582
<p>Nothing in this License shall be construed as excluding or limiting
583
any implied license or other defenses to infringement that may
584
otherwise be available to you under applicable patent law.</p>
585
 
586
<h4><a name="section12"></a>12. No Surrender of Others' Freedom.</h4>
587
 
588
<p>If conditions are imposed on you (whether by court order, agreement or
589
otherwise) that contradict the conditions of this License, they do not
590
excuse you from the conditions of this License.  If you cannot convey a
591
covered work so as to satisfy simultaneously your obligations under this
592
License and any other pertinent obligations, then as a consequence you may
593
not convey it at all.  For example, if you agree to terms that obligate you
594
to collect a royalty for further conveying from those to whom you convey
595
the Program, the only way you could satisfy both those terms and this
596
License would be to refrain entirely from conveying the Program.</p>
597
 
598
<h4><a name="section13"></a>13. Use with the GNU Affero General Public License.</h4>
599
 
600
<p>Notwithstanding any other provision of this License, you have
601
permission to link or combine any covered work with a work licensed
602
under version 3 of the GNU Affero General Public License into a single
603
combined work, and to convey the resulting work.  The terms of this
604
License will continue to apply to the part which is the covered work,
605
but the special requirements of the GNU Affero General Public License,
606
section 13, concerning interaction through a network will apply to the
607
combination as such.</p>
608
 
609
<h4><a name="section14"></a>14. Revised Versions of this License.</h4>
610
 
611
<p>The Free Software Foundation may publish revised and/or new versions of
612
the GNU General Public License from time to time.  Such new versions will
613
be similar in spirit to the present version, but may differ in detail to
614
address new problems or concerns.</p>
615
 
616
<p>Each version is given a distinguishing version number.  If the
617
Program specifies that a certain numbered version of the GNU General
618
Public License &ldquo;or any later version&rdquo; applies to it, you have the
619
option of following the terms and conditions either of that numbered
620
version or of any later version published by the Free Software
621
Foundation.  If the Program does not specify a version number of the
622
GNU General Public License, you may choose any version ever published
623
by the Free Software Foundation.</p>
624
 
625
<p>If the Program specifies that a proxy can decide which future
626
versions of the GNU General Public License can be used, that proxy's
627
public statement of acceptance of a version permanently authorizes you
628
to choose that version for the Program.</p>
629
 
630
<p>Later license versions may give you additional or different
631
permissions.  However, no additional obligations are imposed on any
632
author or copyright holder as a result of your choosing to follow a
633
later version.</p>
634
 
635
<h4><a name="section15"></a>15. Disclaimer of Warranty.</h4>
636
 
637
<p>THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
638
APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
639
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM &ldquo;AS IS&rdquo; WITHOUT WARRANTY
640
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
641
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
642
PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
643
IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
644
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.</p>
645
 
646
<h4><a name="section16"></a>16. Limitation of Liability.</h4>
647
 
648
<p>IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
649
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
650
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
651
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
652
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
653
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
654
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
655
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
656
SUCH DAMAGES.</p>
657
 
658
<h4><a name="section17"></a>17. Interpretation of Sections 15 and 16.</h4>
659
 
660
<p>If the disclaimer of warranty and limitation of liability provided
661
above cannot be given local legal effect according to their terms,
662
reviewing courts shall apply local law that most closely approximates
663
an absolute waiver of all civil liability in connection with the
664
Program, unless a warranty or assumption of liability accompanies a
665
copy of the Program in return for a fee.</p>
666
 
667
<p>END OF TERMS AND CONDITIONS</p>
668
 
669
<h3><a name="howto"></a>How to Apply These Terms to Your New Programs</h3>
670
 
671
<p>If you develop a new program, and you want it to be of the greatest
672
possible use to the public, the best way to achieve this is to make it
673
free software which everyone can redistribute and change under these terms.</p>
674
 
675
<p>To do so, attach the following notices to the program.  It is safest
676
to attach them to the start of each source file to most effectively
677
state the exclusion of warranty; and each file should have at least
678
the &ldquo;copyright&rdquo; line and a pointer to where the full notice is found.</p>
679
 
680
<pre>    &lt;one line to give the program's name and a brief idea of what it does.&gt;
681
    Copyright (C) &lt;year&gt;  &lt;name of author&gt;
682
 
683
    This program is free software: you can redistribute it and/or modify
684
    it under the terms of the GNU General Public License as published by
685
    the Free Software Foundation, either version 3 of the License, or
686
    (at your option) any later version.
687
 
688
    This program is distributed in the hope that it will be useful,
689
    but WITHOUT ANY WARRANTY; without even the implied warranty of
690
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
691
    GNU General Public License for more details.
692
 
693
    You should have received a copy of the GNU General Public License
694
    along with this program.  If not, see &lt;https://www.gnu.org/licenses/&gt;.
695
</pre>
696
 
697
<p>Also add information on how to contact you by electronic and paper mail.</p>
698
 
699
<p>If the program does terminal interaction, make it output a short
700
notice like this when it starts in an interactive mode:</p>
701
 
702
<pre>    &lt;program&gt;  Copyright (C) &lt;year&gt;  &lt;name of author&gt;
703
    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
704
    This is free software, and you are welcome to redistribute it
705
    under certain conditions; type `show c' for details.
706
</pre>
707
 
708
<p>The hypothetical commands `show w' and `show c' should show the appropriate
709
parts of the General Public License.  Of course, your program's commands
710
might be different; for a GUI interface, you would use an &ldquo;about box&rdquo;.</p>
711
 
712
<p>You should also get your employer (if you work as a programmer) or school,
713
if any, to sign a &ldquo;copyright disclaimer&rdquo; for the program, if necessary.
714
For more information on this, and how to apply and follow the GNU GPL, see
715
&lt;<a href="https://www.gnu.org/licenses/">https://www.gnu.org/licenses/</a>&gt;.</p>
716
 
717
<p>The GNU General Public License does not permit incorporating your program
718
into proprietary programs.  If your program is a subroutine library, you
719
may consider it more useful to permit linking proprietary applications with
720
the library.  If this is what you want to do, use the GNU Lesser General
721
Public License instead of this License.  But first, please read
722
&lt;<a href="https://www.gnu.org/licenses/why-not-lgpl.html">https://www.gnu.org/licenses/why-not-lgpl.html</a>&gt;.</p>
723
 
724
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725
 
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