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                    GNU GENERAL PUBLIC LICENSE
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                       Version 3, 29 June 2007
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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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                            Preamble
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  The GNU General Public License is a free, copyleft license for
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software and other kinds of works.
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  The licenses for most software and other practical works are designed
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to take away your freedom to share and change the works.  By contrast,
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the GNU General Public License is intended to guarantee your freedom to
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share and change all versions of a program--to make sure it remains free
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software for all its users.  We, the Free Software Foundation, use the
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GNU General Public License for most of our software; it applies also to
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any other work released this way by its authors.  You can apply it to
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your programs, too.
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  When we speak of free software, we are referring to freedom, not
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  To protect your rights, we need to prevent others from denying you
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  Developers that use the GNU GPL protect your rights with two steps:
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  Nothing in this License shall be construed as excluding or limiting
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any implied license or other defenses to infringement that may
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otherwise be available to you under applicable patent law.
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  12. No Surrender of Others' Freedom.
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  If conditions are imposed on you (whether by court order, agreement or
543
otherwise) that contradict the conditions of this License, they do not
544
excuse you from the conditions of this License.  If you cannot convey a
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covered work so as to satisfy simultaneously your obligations under this
546
License and any other pertinent obligations, then as a consequence you may
547
not convey it at all.  For example, if you agree to terms that obligate you
548
to collect a royalty for further conveying from those to whom you convey
549
the Program, the only way you could satisfy both those terms and this
550
License would be to refrain entirely from conveying the Program.
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  13. Use with the GNU Affero General Public License.
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  Notwithstanding any other provision of this License, you have
555
permission to link or combine any covered work with a work licensed
556
under version 3 of the GNU Affero General Public License into a single
557
combined work, and to convey the resulting work.  The terms of this
558
License will continue to apply to the part which is the covered work,
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but the special requirements of the GNU Affero General Public License,
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section 13, concerning interaction through a network will apply to the
561
combination as such.
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  14. Revised Versions of this License.
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  The Free Software Foundation may publish revised and/or new versions of
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the GNU General Public License from time to time.  Such new versions will
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be similar in spirit to the present version, but may differ in detail to
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address new problems or concerns.
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  Each version is given a distinguishing version number.  If the
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Program specifies that a certain numbered version of the GNU General
572
Public License "or any later version" applies to it, you have the
573
option of following the terms and conditions either of that numbered
574
version or of any later version published by the Free Software
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Foundation.  If the Program does not specify a version number of the
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GNU General Public License, you may choose any version ever published
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by the Free Software Foundation.
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  If the Program specifies that a proxy can decide which future
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versions of the GNU General Public License can be used, that proxy's
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public statement of acceptance of a version permanently authorizes you
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to choose that version for the Program.
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  Later license versions may give you additional or different
585
permissions.  However, no additional obligations are imposed on any
586
author or copyright holder as a result of your choosing to follow a
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later version.
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  15. Disclaimer of Warranty.
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  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
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APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
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HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
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OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
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THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
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IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
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ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
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  16. Limitation of Liability.
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  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
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WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
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THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
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GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
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USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
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DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
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PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
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EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGES.
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  17. Interpretation of Sections 15 and 16.
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  If the disclaimer of warranty and limitation of liability provided
615
above cannot be given local legal effect according to their terms,
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reviewing courts shall apply local law that most closely approximates
617
an absolute waiver of all civil liability in connection with the
618
Program, unless a warranty or assumption of liability accompanies a
619
copy of the Program in return for a fee.
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621
                     END OF TERMS AND CONDITIONS
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623
            How to Apply These Terms to Your New Programs
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  If you develop a new program, and you want it to be of the greatest
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possible use to the public, the best way to achieve this is to make it
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free software which everyone can redistribute and change under these terms.
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  To do so, attach the following notices to the program.  It is safest
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to attach them to the start of each source file to most effectively
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state the exclusion of warranty; and each file should have at least
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the "copyright" line and a pointer to where the full notice is found.
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    <one line to give the program's name and a brief idea of what it does.>
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    Copyright (C) <year>  <name of author>
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    This program is free software: you can redistribute it and/or modify
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    it under the terms of the GNU General Public License as published by
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    the Free Software Foundation, either version 3 of the License, or
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    (at your option) any later version.
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    This program is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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    GNU General Public License for more details.
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    You should have received a copy of the GNU General Public License
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    along with this program.  If not, see <http://www.gnu.org/licenses/>.
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Also add information on how to contact you by electronic and paper mail.
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  If the program does terminal interaction, make it output a short
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notice like this when it starts in an interactive mode:
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    <program>  Copyright (C) <year>  <name of author>
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    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
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    This is free software, and you are welcome to redistribute it
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    under certain conditions; type `show c' for details.
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The hypothetical commands `show w' and `show c' should show the appropriate
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parts of the General Public License.  Of course, your program's commands
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might be different; for a GUI interface, you would use an "about box".
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  You should also get your employer (if you work as a programmer) or school,
665
if any, to sign a "copyright disclaimer" for the program, if necessary.
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For more information on this, and how to apply and follow the GNU GPL, see
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<http://www.gnu.org/licenses/>.
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669
  The GNU General Public License does not permit incorporating your program
670
into proprietary programs.  If your program is a subroutine library, you
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may consider it more useful to permit linking proprietary applications with
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the library.  If this is what you want to do, use the GNU Lesser General
673
Public License instead of this License.  But first, please read
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<http://www.gnu.org/philosophy/why-not-lgpl.html>.