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GNU GENERAL PUBLIC LICENSE
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Version 3, 29 June 2007
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Copyright (C) 1989, 1991 Free Software Foundation, Inc.
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59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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Everyone is permitted to copy and distribute verbatim copies
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of this license document, but changing it is not allowed.
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The licenses for most software are designed to take away your
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General Public License applies to most of the Free Software
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GNU GENERAL PUBLIC LICENSE
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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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0. This License applies to any program or other work which contains
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must place, in the relevant source files, a statement of the
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additional terms that apply to those files, or a notice indicating
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where to find the applicable terms.
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Additional terms, permissive or non-permissive, may be stated in the
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form of a separately written license, or stated as exceptions;
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the above requirements apply either way.
410
You may not propagate or modify a covered work except as expressly
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provided under this License. Any attempt otherwise to propagate or
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modify it is void, and will automatically terminate your rights under
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this License (including any patent licenses granted under the third
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paragraph of section 11).
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However, if you cease all violation of this License, then your
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license from a particular copyright holder is reinstated (a)
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provisionally, unless and until the copyright holder explicitly and
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finally terminates your license, and (b) permanently, if the copyright
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holder fails to notify you of the violation by some reasonable means
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prior to 60 days after the cessation.
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Moreover, your license from a particular copyright holder is
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reinstated permanently if the copyright holder notifies you of the
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violation by some reasonable means, this is the first time you have
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received notice of violation of this License (for any work) from that
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copyright holder, and you cure the violation prior to 30 days after
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your receipt of the notice.
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Termination of your rights under this section does not terminate the
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licenses of parties who have received copies or rights from you under
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this License. If your rights have been terminated and not permanently
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reinstated, you do not qualify to receive new licenses for the same
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material under section 10.
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9. Acceptance Not Required for Having Copies.
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You are not required to accept this License in order to receive or
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run a copy of the Program. Ancillary propagation of a covered work
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occurring solely as a consequence of using peer-to-peer transmission
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to receive a copy likewise does not require acceptance. However,
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nothing other than this License grants you permission to propagate or
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modify any covered work. These actions infringe copyright if you do
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not accept this License. Therefore, by modifying or propagating a
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covered work, you indicate your acceptance of this License to do so.
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10. Automatic Licensing of Downstream Recipients.
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Each time you convey a covered work, the recipient automatically
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receives a license from the original licensors, to run, modify and
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propagate that work, subject to this License. You are not responsible
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for enforcing compliance by third parties with this License.
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An "entity transaction" is a transaction transferring control of an
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organization, or substantially all assets of one, or subdividing an
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organization, or merging organizations. If propagation of a covered
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work results from an entity transaction, each party to that
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transaction who receives a copy of the work also receives whatever
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licenses to the work the party's predecessor in interest had or could
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give under the previous paragraph, plus a right to possession of the
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Corresponding Source of the work from the predecessor in interest, if
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the predecessor has it or can get it with reasonable efforts.
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You may not impose any further restrictions on the exercise of the
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rights granted or affirmed under this License. For example, you may
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not impose a license fee, royalty, or other charge for exercise of
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rights granted under this License, and you may not initiate litigation
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(including a cross-claim or counterclaim in a lawsuit) alleging that
469
any patent claim is infringed by making, using, selling, offering for
470
sale, or importing the Program or any portion of it.
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A "contributor" is a copyright holder who authorizes use under this
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License of the Program or a work on which the Program is based. The
476
work thus licensed is called the contributor's "contributor version".
478
A contributor's "essential patent claims" are all patent claims
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owned or controlled by the contributor, whether already acquired or
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hereafter acquired, that would be infringed by some manner, permitted
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by this License, of making, using, or selling its contributor version,
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but do not include claims that would be infringed only as a
483
consequence of further modification of the contributor version. For
484
purposes of this definition, "control" includes the right to grant
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patent sublicenses in a manner consistent with the requirements of
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7. If, as a consequence of a court judgment or allegation of patent
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infringement or for any other reason (not limited to patent issues),
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conditions are imposed on you (whether by court order, agreement or
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Each contributor grants you a non-exclusive, worldwide, royalty-free
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patent license under the contributor's essential patent claims, to
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make, use, sell, offer for sale, import and otherwise run, modify and
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propagate the contents of its contributor version.
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In the following three paragraphs, a "patent license" is any express
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agreement or commitment, however denominated, not to enforce a patent
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(such as an express permission to practice a patent or covenant not to
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sue for patent infringement). To "grant" such a patent license to a
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party means to make such an agreement or commitment not to enforce a
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patent against the party.
500
If you convey a covered work, knowingly relying on a patent license,
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and the Corresponding Source of the work is not available for anyone
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to copy, free of charge and under the terms of this License, through a
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publicly available network server or other readily accessible means,
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then you must either (1) cause the Corresponding Source to be so
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available, or (2) arrange to deprive yourself of the benefit of the
506
patent license for this particular work, or (3) arrange, in a manner
507
consistent with the requirements of this License, to extend the patent
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license to downstream recipients. "Knowingly relying" means you have
509
actual knowledge that, but for the patent license, your conveying the
510
covered work in a country, or your recipient's use of the covered work
511
in a country, would infringe one or more identifiable patents in that
512
country that you have reason to believe are valid.
514
If, pursuant to or in connection with a single transaction or
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arrangement, you convey, or propagate by procuring conveyance of, a
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covered work, and grant a patent license to some of the parties
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receiving the covered work authorizing them to use, propagate, modify
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or convey a specific copy of the covered work, then the patent license
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you grant is automatically extended to all recipients of the covered
520
work and works based on it.
522
A patent license is "discriminatory" if it does not include within
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the scope of its coverage, prohibits the exercise of, or is
524
conditioned on the non-exercise of one or more of the rights that are
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specifically granted under this License. You may not convey a covered
526
work if you are a party to an arrangement with a third party that is
527
in the business of distributing software, under which you make payment
528
to the third party based on the extent of your activity of conveying
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the work, and under which the third party grants, to any of the
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parties who would receive the covered work from you, a discriminatory
531
patent license (a) in connection with copies of the covered work
532
conveyed by you (or copies made from those copies), or (b) primarily
533
for and in connection with specific products or compilations that
534
contain the covered work, unless you entered into that arrangement,
535
or that patent license was granted, prior to 28 March 2007.
537
Nothing in this License shall be construed as excluding or limiting
538
any implied license or other defenses to infringement that may
539
otherwise be available to you under applicable patent law.
541
12. No Surrender of Others' Freedom.
543
If conditions are imposed on you (whether by court order, agreement or
200
544
otherwise) that contradict the conditions of this License, they do not
201
excuse you from the conditions of this License. If you cannot
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distribute so as to satisfy simultaneously your obligations under this
203
License and any other pertinent obligations, then as a consequence you
204
may not distribute the Program at all. For example, if a patent
205
license would not permit royalty-free redistribution of the Program by
206
all those who receive copies directly or indirectly through you, then
207
the only way you could satisfy both it and this License would be to
208
refrain entirely from distribution of the Program.
210
If any portion of this section is held invalid or unenforceable under
211
any particular circumstance, the balance of the section is intended to
212
apply and the section as a whole is intended to apply in other
215
It is not the purpose of this section to induce you to infringe any
216
patents or other property right claims or to contest validity of any
217
such claims; this section has the sole purpose of protecting the
218
integrity of the free software distribution system, which is
219
implemented by public license practices. Many people have made
220
generous contributions to the wide range of software distributed
221
through that system in reliance on consistent application of that
222
system; it is up to the author/donor to decide if he or she is willing
223
to distribute software through any other system and a licensee cannot
226
This section is intended to make thoroughly clear what is believed to
227
be a consequence of the rest of this License.
229
8. If the distribution and/or use of the Program is restricted in
230
certain countries either by patents or by copyrighted interfaces, the
231
original copyright holder who places the Program under this License
232
may add an explicit geographical distribution limitation excluding
233
those countries, so that distribution is permitted only in or among
234
countries not thus excluded. In such case, this License incorporates
235
the limitation as if written in the body of this License.
237
9. The Free Software Foundation may publish revised and/or new versions
238
of the General Public License from time to time. Such new versions will
545
excuse you from the conditions of this License. If you cannot convey a
546
covered work so as to satisfy simultaneously your obligations under this
547
License and any other pertinent obligations, then as a consequence you may
548
not convey it at all. For example, if you agree to terms that obligate you
549
to collect a royalty for further conveying from those to whom you convey
550
the Program, the only way you could satisfy both those terms and this
551
License would be to refrain entirely from conveying the Program.
553
13. Use with the GNU Affero General Public License.
555
Notwithstanding any other provision of this License, you have
556
permission to link or combine any covered work with a work licensed
557
under version 3 of the GNU Affero General Public License into a single
558
combined work, and to convey the resulting work. The terms of this
559
License will continue to apply to the part which is the covered work,
560
but the special requirements of the GNU Affero General Public License,
561
section 13, concerning interaction through a network will apply to the
564
14. Revised Versions of this License.
566
The Free Software Foundation may publish revised and/or new versions of
567
the GNU General Public License from time to time. Such new versions will
239
568
be similar in spirit to the present version, but may differ in detail to
240
569
address new problems or concerns.
242
Each version is given a distinguishing version number. If the Program
243
specifies a version number of this License which applies to it and "any
244
later version", you have the option of following the terms and conditions
245
either of that version or of any later version published by the Free
246
Software Foundation. If the Program does not specify a version number of
247
this License, you may choose any version ever published by the Free Software
250
10. If you wish to incorporate parts of the Program into other free
251
programs whose distribution conditions are different, write to the author
252
to ask for permission. For software which is copyrighted by the Free
253
Software Foundation, write to the Free Software Foundation; we sometimes
254
make exceptions for this. Our decision will be guided by the two goals
255
of preserving the free status of all derivatives of our free software and
256
of promoting the sharing and reuse of software generally.
260
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
261
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
262
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
263
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
264
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
265
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
266
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
267
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
268
REPAIR OR CORRECTION.
270
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
271
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
272
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
273
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
274
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
275
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
276
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
277
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
278
POSSIBILITY OF SUCH DAMAGES.
571
Each version is given a distinguishing version number. If the
572
Program specifies that a certain numbered version of the GNU General
573
Public License "or any later version" applies to it, you have the
574
option of following the terms and conditions either of that numbered
575
version or of any later version published by the Free Software
576
Foundation. If the Program does not specify a version number of the
577
GNU General Public License, you may choose any version ever published
578
by the Free Software Foundation.
580
If the Program specifies that a proxy can decide which future
581
versions of the GNU General Public License can be used, that proxy's
582
public statement of acceptance of a version permanently authorizes you
583
to choose that version for the Program.
585
Later license versions may give you additional or different
586
permissions. However, no additional obligations are imposed on any
587
author or copyright holder as a result of your choosing to follow a
590
15. Disclaimer of Warranty.
592
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
593
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
594
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
595
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
596
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
597
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
598
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
599
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
601
16. Limitation of Liability.
603
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
604
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
605
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
606
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
607
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
608
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
609
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
610
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
613
17. Interpretation of Sections 15 and 16.
615
If the disclaimer of warranty and limitation of liability provided
616
above cannot be given local legal effect according to their terms,
617
reviewing courts shall apply local law that most closely approximates
618
an absolute waiver of all civil liability in connection with the
619
Program, unless a warranty or assumption of liability accompanies a
620
copy of the Program in return for a fee.
280
622
END OF TERMS AND CONDITIONS
282
624
How to Apply These Terms to Your New Programs
284
626
If you develop a new program, and you want it to be of the greatest