                    GNU GENERAL PUBLIC LICENSE



                       Version 3, 29 June 2007







 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>



 Everyone is permitted to copy and distribute verbatim copies



 of this license document, but changing it is not allowed.







                            Preamble







  The GNU General Public License is a free, copyleft license for



software and other kinds of works.







  The licenses for most software and other practical works are designed



to take away your freedom to share and change the works.  By contrast,



the GNU General Public License is intended to guarantee your freedom to



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software for all its users.  We, the Free Software Foundation, use the



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your programs, too.







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                       TERMS AND CONDITIONS







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  All rights granted under this License are granted for the term of



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  If you convey an object code work under this section in, or with, or



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  7. Additional Terms.







  "Additional permissions" are terms that supplement the terms of this



License by making exceptions from one or more of its conditions.



Additional permissions that are applicable to the entire Program shall



be treated as though they were included in this License, to the extent



that they are valid under applicable law.  If additional permissions



apply only to part of the Program, that part may be used separately



under those permissions, but the entire Program remains governed by



this License without regard to the additional permissions.







  When you convey a copy of a covered work, you may at your option



remove any additional permissions from that copy, or from any part of



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removal in certain cases when you modify the work.)  You may place



additional permissions on material, added by you to a covered work,



for which you have or can give appropriate copyright permission.







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that material) supplement the terms of this License with terms:







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  All other non-permissive additional terms are considered "further



restrictions" within the meaning of section 10.  If the Program as you



received it, or any part of it, contains a notice stating that it is



governed by this License along with a term that is a further



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  Additional terms, permissive or non-permissive, may be stated in the



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the above requirements apply either way.







  8. Termination.







  You may not propagate or modify a covered work except as expressly



provided under this License.  Any attempt otherwise to propagate or



modify it is void, and will automatically terminate your rights under



this License (including any patent licenses granted under the third



paragraph of section 11).







  However, if you cease all violation of this License, then your



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provisionally, unless and until the copyright holder explicitly and



finally terminates your license, and (b) permanently, if the copyright



holder fails to notify you of the violation by some reasonable means



prior to 60 days after the cessation.







  Moreover, your license from a particular copyright holder is



reinstated permanently if the copyright holder notifies you of the



violation by some reasonable means, this is the first time you have



received notice of violation of this License (for any work) from that



copyright holder, and you cure the violation prior to 30 days after



your receipt of the notice.







  Termination of your rights under this section does not terminate the



licenses of parties who have received copies or rights from you under



this License.  If your rights have been terminated and not permanently



reinstated, you do not qualify to receive new licenses for the same



material under section 10.







  9. Acceptance Not Required for Having Copies.







  You are not required to accept this License in order to receive or



run a copy of the Program.  Ancillary propagation of a covered work



occurring solely as a consequence of using peer-to-peer transmission



to receive a copy likewise does not require acceptance.  However,



nothing other than this License grants you permission to propagate or



modify any covered work.  These actions infringe copyright if you do



not accept this License.  Therefore, by modifying or propagating a



covered work, you indicate your acceptance of this License to do so.







  10. Automatic Licensing of Downstream Recipients.







  Each time you convey a covered work, the recipient automatically



receives a license from the original licensors, to run, modify and



propagate that work, subject to this License.  You are not responsible



for enforcing compliance by third parties with this License.







  An "entity transaction" is a transaction transferring control of an



organization, or substantially all assets of one, or subdividing an



organization, or merging organizations.  If propagation of a covered



work results from an entity transaction, each party to that



transaction who receives a copy of the work also receives whatever



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Corresponding Source of the work from the predecessor in interest, if



the predecessor has it or can get it with reasonable efforts.







  You may not impose any further restrictions on the exercise of the



rights granted or affirmed under this License.  For example, you may



not impose a license fee, royalty, or other charge for exercise of



rights granted under this License, and you may not initiate litigation



(including a cross-claim or counterclaim in a lawsuit) alleging that



any patent claim is infringed by making, using, selling, offering for



sale, or importing the Program or any portion of it.







  11. Patents.







  A "contributor" is a copyright holder who authorizes use under this



License of the Program or a work on which the Program is based.  The



work thus licensed is called the contributor's "contributor version".







  A contributor's "essential patent claims" are all patent claims



owned or controlled by the contributor, whether already acquired or



hereafter acquired, that would be infringed by some manner, permitted



by this License, of making, using, or selling its contributor version,



but do not include claims that would be infringed only as a



consequence of further modification of the contributor version.  For



purposes of this definition, "control" includes the right to grant



patent sublicenses in a manner consistent with the requirements of



this License.







  Each contributor grants you a non-exclusive, worldwide, royalty-free



patent license under the contributor's essential patent claims, to



make, use, sell, offer for sale, import and otherwise run, modify and



propagate the contents of its contributor version.







  In the following three paragraphs, a "patent license" is any express



agreement or commitment, however denominated, not to enforce a patent



(such as an express permission to practice a patent or covenant not to



sue for patent infringement).  To "grant" such a patent license to a



party means to make such an agreement or commitment not to enforce a



patent against the party.







  If you convey a covered work, knowingly relying on a patent license,



and the Corresponding Source of the work is not available for anyone



to copy, free of charge and under the terms of this License, through a



publicly available network server or other readily accessible means,



then you must either (1) cause the Corresponding Source to be so



available, or (2) arrange to deprive yourself of the benefit of the



patent license for this particular work, or (3) arrange, in a manner



consistent with the requirements of this License, to extend the patent



license to downstream recipients.  "Knowingly relying" means you have



actual knowledge that, but for the patent license, your conveying the



covered work in a country, or your recipient's use of the covered work



in a country, would infringe one or more identifiable patents in that



country that you have reason to believe are valid.







  If, pursuant to or in connection with a single transaction or



arrangement, you convey, or propagate by procuring conveyance of, a



covered work, and grant a patent license to some of the parties



receiving the covered work authorizing them to use, propagate, modify



or convey a specific copy of the covered work, then the patent license



you grant is automatically extended to all recipients of the covered



work and works based on it.







  A patent license is "discriminatory" if it does not include within



the scope of its coverage, prohibits the exercise of, or is



conditioned on the non-exercise of one or more of the rights that are



specifically granted under this License.  You may not convey a covered



work if you are a party to an arrangement with a third party that is



in the business of distributing software, under which you make payment



to the third party based on the extent of your activity of conveying



the work, and under which the third party grants, to any of the



parties who would receive the covered work from you, a discriminatory



patent license (a) in connection with copies of the covered work



conveyed by you (or copies made from those copies), or (b) primarily



for and in connection with specific products or compilations that



contain the covered work, unless you entered into that arrangement,



or that patent license was granted, prior to 28 March 2007.







  Nothing in this License shall be construed as excluding or limiting



any implied license or other defenses to infringement that may



otherwise be available to you under applicable patent law.







  12. No Surrender of Others' Freedom.







  If conditions are imposed on you (whether by court order, agreement or



otherwise) that contradict the conditions of this License, they do not



excuse you from the conditions of this License.  If you cannot convey a



covered work so as to satisfy simultaneously your obligations under this



License and any other pertinent obligations, then as a consequence you may



not convey it at all.  For example, if you agree to terms that obligate you



to collect a royalty for further conveying from those to whom you convey



the Program, the only way you could satisfy both those terms and this



License would be to refrain entirely from conveying the Program.







  13. Use with the GNU Affero General Public License.







  Notwithstanding any other provision of this License, you have



permission to link or combine any covered work with a work licensed



under version 3 of the GNU Affero General Public License into a single



combined work, and to convey the resulting work.  The terms of this



License will continue to apply to the part which is the covered work,



but the special requirements of the GNU Affero General Public License,



section 13, concerning interaction through a network will apply to the



combination as such.







  14. Revised Versions of this License.







  The Free Software Foundation may publish revised and/or new versions of



the GNU General Public License from time to time.  Such new versions will



be similar in spirit to the present version, but may differ in detail to



address new problems or concerns.







  Each version is given a distinguishing version number.  If the



Program specifies that a certain numbered version of the GNU General



Public License "or any later version" applies to it, you have the



option of following the terms and conditions either of that numbered



version or of any later version published by the Free Software



Foundation.  If the Program does not specify a version number of the



GNU General Public License, you may choose any version ever published



by the Free Software Foundation.







  If the Program specifies that a proxy can decide which future



versions of the GNU General Public License can be used, that proxy's



public statement of acceptance of a version permanently authorizes you



to choose that version for the Program.







  Later license versions may give you additional or different



permissions.  However, no additional obligations are imposed on any



author or copyright holder as a result of your choosing to follow a



later version.







  15. Disclaimer of Warranty.







  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY



APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT



HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY



OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,



THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR



PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM



IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF



ALL NECESSARY SERVICING, REPAIR OR CORRECTION.







  16. Limitation of Liability.







  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING



WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS



THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY



GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE



USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF



DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD



PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),



EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF



SUCH DAMAGES.







  17. Interpretation of Sections 15 and 16.







  If the disclaimer of warranty and limitation of liability provided



above cannot be given local legal effect according to their terms,



reviewing courts shall apply local law that most closely approximates



an absolute waiver of all civil liability in connection with the



Program, unless a warranty or assumption of liability accompanies a



copy of the Program in return for a fee.







                     END OF TERMS AND CONDITIONS







            How to Apply These Terms to Your New Programs







  If you develop a new program, and you want it to be of the greatest



possible use to the public, the best way to achieve this is to make it



free software which everyone can redistribute and change under these terms.







  To do so, attach the following notices to the program.  It is safest



to attach them to the start of each source file to most effectively



state the exclusion of warranty; and each file should have at least



the "copyright" line and a pointer to where the full notice is found.







    <one line to give the program's name and a brief idea of what it does.>



    Copyright (C) <year>  <name of author>







    This program is free software: you can redistribute it and/or modify



    it under the terms of the GNU General Public License as published by



    the Free Software Foundation, either version 3 of the License, or



    (at your option) any later version.







    This program is distributed in the hope that it will be useful,



    but WITHOUT ANY WARRANTY; without even the implied warranty of



    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the



    GNU General Public License for more details.







    You should have received a copy of the GNU General Public License



    along with this program.  If not, see <http://www.gnu.org/licenses/>.







Also add information on how to contact you by electronic and paper mail.







  If the program does terminal interaction, make it output a short



notice like this when it starts in an interactive mode:







    <program>  Copyright (C) <year>  <name of author>



    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.



    This is free software, and you are welcome to redistribute it



    under certain conditions; type `show c' for details.







The hypothetical commands `show w' and `show c' should show the appropriate



parts of the General Public License.  Of course, your program's commands



might be different; for a GUI interface, you would use an "about box".







  You should also get your employer (if you work as a programmer) or school,



if any, to sign a "copyright disclaimer" for the program, if necessary.



For more information on this, and how to apply and follow the GNU GPL, see



<http://www.gnu.org/licenses/>.







  The GNU General Public License does not permit incorporating your program



into proprietary programs.  If your program is a subroutine library, you



may consider it more useful to permit linking proprietary applications with



the library.  If this is what you want to do, use the GNU Lesser General



Public License instead of this License.  But first, please read



<http://www.gnu.org/philosophy/why-not-lgpl.html>.