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5 <title>GNU General Public License - GNU Project - Free Software Foundation (FSF)</title>
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7<body>
8<h3 style="text-align: center;">GNU GENERAL PUBLIC LICENSE</h3>
9<p style="text-align: center;">Version 3, 29 June 2007</p>
10
11<p>Copyright &copy; 2007 Free Software Foundation, Inc. &lt;http://fsf.org/&gt;</p><p>
12 Everyone is permitted to copy and distribute verbatim copies
13 of this license document, but changing it is not allowed.</p>
14
15<h3><a name="preamble"></a>Preamble</h3>
16
17<p>The GNU General Public License is a free, copyleft license for
18software and other kinds of works.</p>
19
20<p>The licenses for most software and other practical works are designed
21to take away your freedom to share and change the works.  By contrast,
22the GNU General Public License is intended to guarantee your freedom to
23share and change all versions of a program--to make sure it remains free
24software for all its users.  We, the Free Software Foundation, use the
25GNU General Public License for most of our software; it applies also to
26any other work released this way by its authors.  You can apply it to
27your programs, too.</p>
28
29<p>When we speak of free software, we are referring to freedom, not
30price.  Our General Public Licenses are designed to make sure that you
31have the freedom to distribute copies of free software (and charge for
32them if you wish), that you receive source code or can get it if you
33want it, that you can change the software or use pieces of it in new
34free programs, and that you know you can do these things.</p>
35
36<p>To protect your rights, we need to prevent others from denying you
37these rights or asking you to surrender the rights.  Therefore, you have
38certain responsibilities if you distribute copies of the software, or if
39you modify it: responsibilities to respect the freedom of others.</p>
40
41<p>For example, if you distribute copies of such a program, whether
42gratis or for a fee, you must pass on to the recipients the same
43freedoms that you received.  You must make sure that they, too, receive
44or can get the source code.  And you must show them these terms so they
45know their rights.</p>
46
47<p>Developers that use the GNU GPL protect your rights with two steps:
48(1) assert copyright on the software, and (2) offer you this License
49giving you legal permission to copy, distribute and/or modify it.</p>
50
51<p>For the developers' and authors' protection, the GPL clearly explains
52that there is no warranty for this free software.  For both users' and
53authors' sake, the GPL requires that modified versions be marked as
54changed, so that their problems will not be attributed erroneously to
55authors of previous versions.</p>
56
57<p>Some devices are designed to deny users access to install or run
58modified versions of the software inside them, although the manufacturer
59can do so.  This is fundamentally incompatible with the aim of
60protecting users' freedom to change the software.  The systematic
61pattern of such abuse occurs in the area of products for individuals to
62use, which is precisely where it is most unacceptable.  Therefore, we
63have designed this version of the GPL to prohibit the practice for those
64products.  If such problems arise substantially in other domains, we
65stand ready to extend this provision to those domains in future versions
66of the GPL, as needed to protect the freedom of users.</p>
67
68<p>Finally, every program is threatened constantly by software patents.
69States should not allow patents to restrict development and use of
70software on general-purpose computers, but in those that do, we wish to
71avoid the special danger that patents applied to a free program could
72make it effectively proprietary.  To prevent this, the GPL assures that
73patents cannot be used to render the program non-free.</p>
74
75<p>The precise terms and conditions for copying, distribution and
76modification follow.</p>
77
78<h3><a name="terms"></a>TERMS AND CONDITIONS</h3>
79
80<h4><a name="section0"></a>0. Definitions.</h4>
81
82<p>&ldquo;This License&rdquo; refers to version 3 of the GNU General Public License.</p>
83
84<p>&ldquo;Copyright&rdquo; also means copyright-like laws that apply to other kinds of
85works, such as semiconductor masks.</p>
86 
87<p>&ldquo;The Program&rdquo; refers to any copyrightable work licensed under this
88License.  Each licensee is addressed as &ldquo;you&rdquo;.  &ldquo;Licensees&rdquo; and
89&ldquo;recipients&rdquo; may be individuals or organizations.</p>
90
91<p>To &ldquo;modify&rdquo; a work means to copy from or adapt all or part of the work
92in a fashion requiring copyright permission, other than the making of an
93exact copy.  The resulting work is called a &ldquo;modified version&rdquo; of the
94earlier work or a work &ldquo;based on&rdquo; the earlier work.</p>
95
96<p>A &ldquo;covered work&rdquo; means either the unmodified Program or a work based
97on the Program.</p>
98
99<p>To &ldquo;propagate&rdquo; a work means to do anything with it that, without
100permission, would make you directly or secondarily liable for
101infringement under applicable copyright law, except executing it on a
102computer or modifying a private copy.  Propagation includes copying,
103distribution (with or without modification), making available to the
104public, and in some countries other activities as well.</p>
105
106<p>To &ldquo;convey&rdquo; a work means any kind of propagation that enables other
107parties to make or receive copies.  Mere interaction with a user through
108a computer network, with no transfer of a copy, is not conveying.</p>
109
110<p>An interactive user interface displays &ldquo;Appropriate Legal Notices&rdquo;
111to the extent that it includes a convenient and prominently visible
112feature that (1) displays an appropriate copyright notice, and (2)
113tells the user that there is no warranty for the work (except to the
114extent that warranties are provided), that licensees may convey the
115work under this License, and how to view a copy of this License.  If
116the interface presents a list of user commands or options, such as a
117menu, a prominent item in the list meets this criterion.</p>
118
119<h4><a name="section1"></a>1. Source Code.</h4>
120
121<p>The &ldquo;source code&rdquo; for a work means the preferred form of the work
122for making modifications to it.  &ldquo;Object code&rdquo; means any non-source
123form of a work.</p>
124
125<p>A &ldquo;Standard Interface&rdquo; means an interface that either is an official
126standard defined by a recognized standards body, or, in the case of
127interfaces specified for a particular programming language, one that
128is widely used among developers working in that language.</p>
129
130<p>The &ldquo;System Libraries&rdquo; of an executable work include anything, other
131than the work as a whole, that (a) is included in the normal form of
132packaging a Major Component, but which is not part of that Major
133Component, and (b) serves only to enable use of the work with that
134Major Component, or to implement a Standard Interface for which an
135implementation is available to the public in source code form.  A
136&ldquo;Major Component&rdquo;, in this context, means a major essential component
137(kernel, window system, and so on) of the specific operating system
138(if any) on which the executable work runs, or a compiler used to
139produce the work, or an object code interpreter used to run it.</p>
140
141<p>The &ldquo;Corresponding Source&rdquo; for a work in object code form means all
142the source code needed to generate, install, and (for an executable
143work) run the object code and to modify the work, including scripts to
144control those activities.  However, it does not include the work's
145System Libraries, or general-purpose tools or generally available free
146programs which are used unmodified in performing those activities but
147which are not part of the work.  For example, Corresponding Source
148includes interface definition files associated with source files for
149the work, and the source code for shared libraries and dynamically
150linked subprograms that the work is specifically designed to require,
151such as by intimate data communication or control flow between those
152subprograms and other parts of the work.</p>
153
154<p>The Corresponding Source need not include anything that users
155can regenerate automatically from other parts of the Corresponding
156Source.</p>
157
158<p>The Corresponding Source for a work in source code form is that
159same work.</p>
160
161<h4><a name="section2"></a>2. Basic Permissions.</h4>
162
163<p>All rights granted under this License are granted for the term of
164copyright on the Program, and are irrevocable provided the stated
165conditions are met.  This License explicitly affirms your unlimited
166permission to run the unmodified Program.  The output from running a
167covered work is covered by this License only if the output, given its
168content, constitutes a covered work.  This License acknowledges your
169rights of fair use or other equivalent, as provided by copyright law.</p>
170
171<p>You may make, run and propagate covered works that you do not
172convey, without conditions so long as your license otherwise remains
173in force.  You may convey covered works to others for the sole purpose
174of having them make modifications exclusively for you, or provide you
175with facilities for running those works, provided that you comply with
176the terms of this License in conveying all material for which you do
177not control copyright.  Those thus making or running the covered works
178for you must do so exclusively on your behalf, under your direction
179and control, on terms that prohibit them from making any copies of
180your copyrighted material outside their relationship with you.</p>
181
182<p>Conveying under any other circumstances is permitted solely under
183the conditions stated below.  Sublicensing is not allowed; section 10
184makes it unnecessary.</p>
185
186<h4><a name="section3"></a>3. Protecting Users' Legal Rights From Anti-Circumvention Law.</h4>
187
188<p>No covered work shall be deemed part of an effective technological
189measure under any applicable law fulfilling obligations under article
19011 of the WIPO copyright treaty adopted on 20 December 1996, or
191similar laws prohibiting or restricting circumvention of such
192measures.</p>
193
194<p>When you convey a covered work, you waive any legal power to forbid
195circumvention of technological measures to the extent such circumvention
196is effected by exercising rights under this License with respect to
197the covered work, and you disclaim any intention to limit operation or
198modification of the work as a means of enforcing, against the work's
199users, your or third parties' legal rights to forbid circumvention of
200technological measures.</p>
201
202<h4><a name="section4"></a>4. Conveying Verbatim Copies.</h4>
203
204<p>You may convey verbatim copies of the Program's source code as you
205receive it, in any medium, provided that you conspicuously and
206appropriately publish on each copy an appropriate copyright notice;
207keep intact all notices stating that this License and any
208non-permissive terms added in accord with section 7 apply to the code;
209keep intact all notices of the absence of any warranty; and give all
210recipients a copy of this License along with the Program.</p>
211
212<p>You may charge any price or no price for each copy that you convey,
213and you may offer support or warranty protection for a fee.</p>
214
215<h4><a name="section5"></a>5. Conveying Modified Source Versions.</h4>
216
217<p>You may convey a work based on the Program, or the modifications to
218produce it from the Program, in the form of source code under the
219terms of section 4, provided that you also meet all of these conditions:</p>
220
221<ul>
222<li>a) The work must carry prominent notices stating that you modified
223    it, and giving a relevant date.</li>
224
225<li>b) The work must carry prominent notices stating that it is
226    released under this License and any conditions added under section
227    7.  This requirement modifies the requirement in section 4 to
228    &ldquo;keep intact all notices&rdquo;.</li>
229
230<li>c) You must license the entire work, as a whole, under this
231    License to anyone who comes into possession of a copy.  This
232    License will therefore apply, along with any applicable section 7
233    additional terms, to the whole of the work, and all its parts,
234    regardless of how they are packaged.  This License gives no
235    permission to license the work in any other way, but it does not
236    invalidate such permission if you have separately received it.</li>
237
238<li>d) If the work has interactive user interfaces, each must display
239    Appropriate Legal Notices; however, if the Program has interactive
240    interfaces that do not display Appropriate Legal Notices, your
241    work need not make them do so.</li>
242</ul>
243
244<p>A compilation of a covered work with other separate and independent
245works, which are not by their nature extensions of the covered work,
246and which are not combined with it such as to form a larger program,
247in or on a volume of a storage or distribution medium, is called an
248&ldquo;aggregate&rdquo; if the compilation and its resulting copyright are not
249used to limit the access or legal rights of the compilation's users
250beyond what the individual works permit.  Inclusion of a covered work
251in an aggregate does not cause this License to apply to the other
252parts of the aggregate.</p>
253
254<h4><a name="section6"></a>6. Conveying Non-Source Forms.</h4>
255
256<p>You may convey a covered work in object code form under the terms
257of sections 4 and 5, provided that you also convey the
258machine-readable Corresponding Source under the terms of this License,
259in one of these ways:</p>
260
261<ul>
262<li>a) Convey the object code in, or embodied in, a physical product
263    (including a physical distribution medium), accompanied by the
264    Corresponding Source fixed on a durable physical medium
265    customarily used for software interchange.</li>
266
267<li>b) Convey the object code in, or embodied in, a physical product
268    (including a physical distribution medium), accompanied by a
269    written offer, valid for at least three years and valid for as
270    long as you offer spare parts or customer support for that product
271    model, to give anyone who possesses the object code either (1) a
272    copy of the Corresponding Source for all the software in the
273    product that is covered by this License, on a durable physical
274    medium customarily used for software interchange, for a price no
275    more than your reasonable cost of physically performing this
276    conveying of source, or (2) access to copy the
277    Corresponding Source from a network server at no charge.</li>
278
279<li>c) Convey individual copies of the object code with a copy of the
280    written offer to provide the Corresponding Source.  This
281    alternative is allowed only occasionally and noncommercially, and
282    only if you received the object code with such an offer, in accord
283    with subsection 6b.</li>
284
285<li>d) Convey the object code by offering access from a designated
286    place (gratis or for a charge), and offer equivalent access to the
287    Corresponding Source in the same way through the same place at no
288    further charge.  You need not require recipients to copy the
289    Corresponding Source along with the object code.  If the place to
290    copy the object code is a network server, the Corresponding Source
291    may be on a different server (operated by you or a third party)
292    that supports equivalent copying facilities, provided you maintain
293    clear directions next to the object code saying where to find the
294    Corresponding Source.  Regardless of what server hosts the
295    Corresponding Source, you remain obligated to ensure that it is
296    available for as long as needed to satisfy these requirements.</li>
297
298<li>e) Convey the object code using peer-to-peer transmission, provided
299    you inform other peers where the object code and Corresponding
300    Source of the work are being offered to the general public at no
301    charge under subsection 6d.</li>
302</ul>
303
304<p>A separable portion of the object code, whose source code is excluded
305from the Corresponding Source as a System Library, need not be
306included in conveying the object code work.</p>
307
308<p>A &ldquo;User Product&rdquo; is either (1) a &ldquo;consumer product&rdquo;, which means any
309tangible personal property which is normally used for personal, family,
310or household purposes, or (2) anything designed or sold for incorporation
311into a dwelling.  In determining whether a product is a consumer product,
312doubtful cases shall be resolved in favor of coverage.  For a particular
313product received by a particular user, &ldquo;normally used&rdquo; refers to a
314typical or common use of that class of product, regardless of the status
315of the particular user or of the way in which the particular user
316actually uses, or expects or is expected to use, the product.  A product
317is a consumer product regardless of whether the product has substantial
318commercial, industrial or non-consumer uses, unless such uses represent
319the only significant mode of use of the product.</p>
320
321<p>&ldquo;Installation Information&rdquo; for a User Product means any methods,
322procedures, authorization keys, or other information required to install
323and execute modified versions of a covered work in that User Product from
324a modified version of its Corresponding Source.  The information must
325suffice to ensure that the continued functioning of the modified object
326code is in no case prevented or interfered with solely because
327modification has been made.</p>
328
329<p>If you convey an object code work under this section in, or with, or
330specifically for use in, a User Product, and the conveying occurs as
331part of a transaction in which the right of possession and use of the
332User Product is transferred to the recipient in perpetuity or for a
333fixed term (regardless of how the transaction is characterized), the
334Corresponding Source conveyed under this section must be accompanied
335by the Installation Information.  But this requirement does not apply
336if neither you nor any third party retains the ability to install
337modified object code on the User Product (for example, the work has
338been installed in ROM).</p>
339
340<p>The requirement to provide Installation Information does not include a
341requirement to continue to provide support service, warranty, or updates
342for a work that has been modified or installed by the recipient, or for
343the User Product in which it has been modified or installed.  Access to a
344network may be denied when the modification itself materially and
345adversely affects the operation of the network or violates the rules and
346protocols for communication across the network.</p>
347
348<p>Corresponding Source conveyed, and Installation Information provided,
349in accord with this section must be in a format that is publicly
350documented (and with an implementation available to the public in
351source code form), and must require no special password or key for
352unpacking, reading or copying.</p>
353
354<h4><a name="section7"></a>7. Additional Terms.</h4>
355
356<p>&ldquo;Additional permissions&rdquo; are terms that supplement the terms of this
357License by making exceptions from one or more of its conditions.
358Additional permissions that are applicable to the entire Program shall
359be treated as though they were included in this License, to the extent
360that they are valid under applicable law.  If additional permissions
361apply only to part of the Program, that part may be used separately
362under those permissions, but the entire Program remains governed by
363this License without regard to the additional permissions.</p>
364
365<p>When you convey a copy of a covered work, you may at your option
366remove any additional permissions from that copy, or from any part of
367it.  (Additional permissions may be written to require their own
368removal in certain cases when you modify the work.)  You may place
369additional permissions on material, added by you to a covered work,
370for which you have or can give appropriate copyright permission.</p>
371
372<p>Notwithstanding any other provision of this License, for material you
373add to a covered work, you may (if authorized by the copyright holders of
374that material) supplement the terms of this License with terms:</p>
375
376<ul>
377<li>a) Disclaiming warranty or limiting liability differently from the
378    terms of sections 15 and 16 of this License; or</li>
379
380<li>b) Requiring preservation of specified reasonable legal notices or
381    author attributions in that material or in the Appropriate Legal
382    Notices displayed by works containing it; or</li>
383
384<li>c) Prohibiting misrepresentation of the origin of that material, or
385    requiring that modified versions of such material be marked in
386    reasonable ways as different from the original version; or</li>
387
388<li>d) Limiting the use for publicity purposes of names of licensors or
389    authors of the material; or</li>
390
391<li>e) Declining to grant rights under trademark law for use of some
392    trade names, trademarks, or service marks; or</li>
393
394<li>f) Requiring indemnification of licensors and authors of that
395    material by anyone who conveys the material (or modified versions of
396    it) with contractual assumptions of liability to the recipient, for
397    any liability that these contractual assumptions directly impose on
398    those licensors and authors.</li>
399</ul>
400
401<p>All other non-permissive additional terms are considered &ldquo;further
402restrictions&rdquo; within the meaning of section 10.  If the Program as you
403received it, or any part of it, contains a notice stating that it is
404governed by this License along with a term that is a further
405restriction, you may remove that term.  If a license document contains
406a further restriction but permits relicensing or conveying under this
407License, you may add to a covered work material governed by the terms
408of that license document, provided that the further restriction does
409not survive such relicensing or conveying.</p>
410
411<p>If you add terms to a covered work in accord with this section, you
412must place, in the relevant source files, a statement of the
413additional terms that apply to those files, or a notice indicating
414where to find the applicable terms.</p>
415
416<p>Additional terms, permissive or non-permissive, may be stated in the
417form of a separately written license, or stated as exceptions;
418the above requirements apply either way.</p>
419
420<h4><a name="section8"></a>8. Termination.</h4>
421
422<p>You may not propagate or modify a covered work except as expressly
423provided under this License.  Any attempt otherwise to propagate or
424modify it is void, and will automatically terminate your rights under
425this License (including any patent licenses granted under the third
426paragraph of section 11).</p>
427
428<p>However, if you cease all violation of this License, then your
429license from a particular copyright holder is reinstated (a)
430provisionally, unless and until the copyright holder explicitly and
431finally terminates your license, and (b) permanently, if the copyright
432holder fails to notify you of the violation by some reasonable means
433prior to 60 days after the cessation.</p>
434
435<p>Moreover, your license from a particular copyright holder is
436reinstated permanently if the copyright holder notifies you of the
437violation by some reasonable means, this is the first time you have
438received notice of violation of this License (for any work) from that
439copyright holder, and you cure the violation prior to 30 days after
440your receipt of the notice.</p>
441
442<p>Termination of your rights under this section does not terminate the
443licenses of parties who have received copies or rights from you under
444this License.  If your rights have been terminated and not permanently
445reinstated, you do not qualify to receive new licenses for the same
446material under section 10.</p>
447
448<h4><a name="section9"></a>9. Acceptance Not Required for Having Copies.</h4>
449
450<p>You are not required to accept this License in order to receive or
451run a copy of the Program.  Ancillary propagation of a covered work
452occurring solely as a consequence of using peer-to-peer transmission
453to receive a copy likewise does not require acceptance.  However,
454nothing other than this License grants you permission to propagate or
455modify any covered work.  These actions infringe copyright if you do
456not accept this License.  Therefore, by modifying or propagating a
457covered work, you indicate your acceptance of this License to do so.</p>
458
459<h4><a name="section10"></a>10. Automatic Licensing of Downstream Recipients.</h4>
460
461<p>Each time you convey a covered work, the recipient automatically
462receives a license from the original licensors, to run, modify and
463propagate that work, subject to this License.  You are not responsible
464for enforcing compliance by third parties with this License.</p>
465
466<p>An &ldquo;entity transaction&rdquo; is a transaction transferring control of an
467organization, or substantially all assets of one, or subdividing an
468organization, or merging organizations.  If propagation of a covered
469work results from an entity transaction, each party to that
470transaction who receives a copy of the work also receives whatever
471licenses to the work the party's predecessor in interest had or could
472give under the previous paragraph, plus a right to possession of the
473Corresponding Source of the work from the predecessor in interest, if
474the predecessor has it or can get it with reasonable efforts.</p>
475
476<p>You may not impose any further restrictions on the exercise of the
477rights granted or affirmed under this License.  For example, you may
478not impose a license fee, royalty, or other charge for exercise of
479rights granted under this License, and you may not initiate litigation
480(including a cross-claim or counterclaim in a lawsuit) alleging that
481any patent claim is infringed by making, using, selling, offering for
482sale, or importing the Program or any portion of it.</p>
483
484<h4><a name="section11"></a>11. Patents.</h4>
485
486<p>A &ldquo;contributor&rdquo; is a copyright holder who authorizes use under this
487License of the Program or a work on which the Program is based.  The
488work thus licensed is called the contributor's &ldquo;contributor version&rdquo;.</p>
489
490<p>A contributor's &ldquo;essential patent claims&rdquo; are all patent claims
491owned or controlled by the contributor, whether already acquired or
492hereafter acquired, that would be infringed by some manner, permitted
493by this License, of making, using, or selling its contributor version,
494but do not include claims that would be infringed only as a
495consequence of further modification of the contributor version.  For
496purposes of this definition, &ldquo;control&rdquo; includes the right to grant
497patent sublicenses in a manner consistent with the requirements of
498this License.</p>
499
500<p>Each contributor grants you a non-exclusive, worldwide, royalty-free
501patent license under the contributor's essential patent claims, to
502make, use, sell, offer for sale, import and otherwise run, modify and
503propagate the contents of its contributor version.</p>
504
505<p>In the following three paragraphs, a &ldquo;patent license&rdquo; is any express
506agreement or commitment, however denominated, not to enforce a patent
507(such as an express permission to practice a patent or covenant not to
508sue for patent infringement).  To &ldquo;grant&rdquo; such a patent license to a
509party means to make such an agreement or commitment not to enforce a
510patent against the party.</p>
511
512<p>If you convey a covered work, knowingly relying on a patent license,
513and the Corresponding Source of the work is not available for anyone
514to copy, free of charge and under the terms of this License, through a
515publicly available network server or other readily accessible means,
516then you must either (1) cause the Corresponding Source to be so
517available, or (2) arrange to deprive yourself of the benefit of the
518patent license for this particular work, or (3) arrange, in a manner
519consistent with the requirements of this License, to extend the patent
520license to downstream recipients.  &ldquo;Knowingly relying&rdquo; means you have
521actual knowledge that, but for the patent license, your conveying the
522covered work in a country, or your recipient's use of the covered work
523in a country, would infringe one or more identifiable patents in that
524country that you have reason to believe are valid.</p>
525 
526<p>If, pursuant to or in connection with a single transaction or
527arrangement, you convey, or propagate by procuring conveyance of, a
528covered work, and grant a patent license to some of the parties
529receiving the covered work authorizing them to use, propagate, modify
530or convey a specific copy of the covered work, then the patent license
531you grant is automatically extended to all recipients of the covered
532work and works based on it.</p>
533
534<p>A patent license is &ldquo;discriminatory&rdquo; if it does not include within
535the scope of its coverage, prohibits the exercise of, or is
536conditioned on the non-exercise of one or more of the rights that are
537specifically granted under this License.  You may not convey a covered
538work if you are a party to an arrangement with a third party that is
539in the business of distributing software, under which you make payment
540to the third party based on the extent of your activity of conveying
541the work, and under which the third party grants, to any of the
542parties who would receive the covered work from you, a discriminatory
543patent license (a) in connection with copies of the covered work
544conveyed by you (or copies made from those copies), or (b) primarily
545for and in connection with specific products or compilations that
546contain the covered work, unless you entered into that arrangement,
547or that patent license was granted, prior to 28 March 2007.</p>
548
549<p>Nothing in this License shall be construed as excluding or limiting
550any implied license or other defenses to infringement that may
551otherwise be available to you under applicable patent law.</p>
552
553<h4><a name="section12"></a>12. No Surrender of Others' Freedom.</h4>
554
555<p>If conditions are imposed on you (whether by court order, agreement or
556otherwise) that contradict the conditions of this License, they do not
557excuse you from the conditions of this License.  If you cannot convey a
558covered work so as to satisfy simultaneously your obligations under this
559License and any other pertinent obligations, then as a consequence you may
560not convey it at all.  For example, if you agree to terms that obligate you
561to collect a royalty for further conveying from those to whom you convey
562the Program, the only way you could satisfy both those terms and this
563License would be to refrain entirely from conveying the Program.</p>
564
565<h4><a name="section13"></a>13. Use with the GNU Affero General Public License.</h4>
566
567<p>Notwithstanding any other provision of this License, you have
568permission to link or combine any covered work with a work licensed
569under version 3 of the GNU Affero General Public License into a single
570combined work, and to convey the resulting work.  The terms of this
571License will continue to apply to the part which is the covered work,
572but the special requirements of the GNU Affero General Public License,
573section 13, concerning interaction through a network will apply to the
574combination as such.</p>
575
576<h4><a name="section14"></a>14. Revised Versions of this License.</h4>
577
578<p>The Free Software Foundation may publish revised and/or new versions of
579the GNU General Public License from time to time.  Such new versions will
580be similar in spirit to the present version, but may differ in detail to
581address new problems or concerns.</p>
582
583<p>Each version is given a distinguishing version number.  If the
584Program specifies that a certain numbered version of the GNU General
585Public License &ldquo;or any later version&rdquo; applies to it, you have the
586option of following the terms and conditions either of that numbered
587version or of any later version published by the Free Software
588Foundation.  If the Program does not specify a version number of the
589GNU General Public License, you may choose any version ever published
590by the Free Software Foundation.</p>
591
592<p>If the Program specifies that a proxy can decide which future
593versions of the GNU General Public License can be used, that proxy's
594public statement of acceptance of a version permanently authorizes you
595to choose that version for the Program.</p>
596
597<p>Later license versions may give you additional or different
598permissions.  However, no additional obligations are imposed on any
599author or copyright holder as a result of your choosing to follow a
600later version.</p>
601
602<h4><a name="section15"></a>15. Disclaimer of Warranty.</h4>
603
604<p>THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
605APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
606HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM &ldquo;AS IS&rdquo; WITHOUT WARRANTY
607OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
608THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
609PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
610IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
611ALL NECESSARY SERVICING, REPAIR OR CORRECTION.</p>
612
613<h4><a name="section16"></a>16. Limitation of Liability.</h4>
614
615<p>IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
616WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
617THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
618GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
619USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
620DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
621PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
622EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
623SUCH DAMAGES.</p>
624
625<h4><a name="section17"></a>17. Interpretation of Sections 15 and 16.</h4>
626
627<p>If the disclaimer of warranty and limitation of liability provided
628above cannot be given local legal effect according to their terms,
629reviewing courts shall apply local law that most closely approximates
630an absolute waiver of all civil liability in connection with the
631Program, unless a warranty or assumption of liability accompanies a
632copy of the Program in return for a fee.</p>
633
634<p>END OF TERMS AND CONDITIONS</p>
635
636<h3><a name="howto"></a>How to Apply These Terms to Your New Programs</h3>
637
638<p>If you develop a new program, and you want it to be of the greatest
639possible use to the public, the best way to achieve this is to make it
640free software which everyone can redistribute and change under these terms.</p>
641
642<p>To do so, attach the following notices to the program.  It is safest
643to attach them to the start of each source file to most effectively
644state the exclusion of warranty; and each file should have at least
645the &ldquo;copyright&rdquo; line and a pointer to where the full notice is found.</p>
646
647<pre>    &lt;one line to give the program's name and a brief idea of what it does.&gt;
648    Copyright (C) &lt;year&gt;  &lt;name of author&gt;
649
650    This program is free software: you can redistribute it and/or modify
651    it under the terms of the GNU General Public License as published by
652    the Free Software Foundation, either version 3 of the License, or
653    (at your option) any later version.
654
655    This program is distributed in the hope that it will be useful,
656    but WITHOUT ANY WARRANTY; without even the implied warranty of
657    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
658    GNU General Public License for more details.
659
660    You should have received a copy of the GNU General Public License
661    along with this program.  If not, see &lt;http://www.gnu.org/licenses/&gt;.
662</pre>
663
664<p>Also add information on how to contact you by electronic and paper mail.</p>
665
666<p>If the program does terminal interaction, make it output a short
667notice like this when it starts in an interactive mode:</p>
668
669<pre>    &lt;program&gt;  Copyright (C) &lt;year&gt;  &lt;name of author&gt;
670    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
671    This is free software, and you are welcome to redistribute it
672    under certain conditions; type `show c' for details.
673</pre>
674
675<p>The hypothetical commands `show w' and `show c' should show the appropriate
676parts of the General Public License.  Of course, your program's commands
677might be different; for a GUI interface, you would use an &ldquo;about box&rdquo;.</p>
678
679<p>You should also get your employer (if you work as a programmer) or school,
680if any, to sign a &ldquo;copyright disclaimer&rdquo; for the program, if necessary.
681For more information on this, and how to apply and follow the GNU GPL, see
682&lt;http://www.gnu.org/licenses/&gt;.</p>
683
684<p>The GNU General Public License does not permit incorporating your program
685into proprietary programs.  If your program is a subroutine library, you
686may consider it more useful to permit linking proprietary applications with
687the library.  If this is what you want to do, use the GNU Lesser General
688Public License instead of this License.  But first, please read
689&lt;http://www.gnu.org/philosophy/why-not-lgpl.html&gt;.</p>
690
691
692</body></html>
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