license.txt

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
	share and change all versions of a program--to make sure it remains free
	software for all its users.  We, the Free Software Foundation, use the
	GNU General Public License for most of our software; it applies also to
	any other work released this way by its authors.  You can apply it to
	your programs, too.
	

	  When we speak of free software, we are referring to freedom, not
	price.  Our General Public Licenses are designed to make sure that you
	have the freedom to distribute copies of free software (and charge for
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	free programs, and that you know you can do these things.
	

	  To protect your rights, we need to prevent others from denying you
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	you modify it: responsibilities to respect the freedom of others.
	

	  For example, if you distribute copies of such a program, whether
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	  Developers that use the GNU GPL protect your rights with two steps:
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	  Some devices are designed to deny users access to install or run
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	  Finally, every program is threatened constantly by software patents.
	States should not allow patents to restrict development and use of
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	  The precise terms and conditions for copying, distribution and
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	                       TERMS AND CONDITIONS
	

	  0. Definitions.
	

	  "This License" refers to version 3 of the GNU General Public License.
	

	  "Copyright" also means copyright-like laws that apply to other kinds of
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	  All rights granted under this License are granted for the term of
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	  A "User Product" is either (1) a "consumer product", which means any
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	  If you convey an object code work under this section in, or with, or
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	  The requirement to provide Installation Information does not include a
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	  Corresponding Source conveyed, and Installation Information provided,
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	  7. Additional Terms.
	

	  "Additional permissions" are terms that supplement the terms of this
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	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
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	  When you convey a copy of a covered work, you may at your option
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	  All other non-permissive additional terms are considered "further
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	  If you add terms to a covered work in accord with this section, you
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	  Additional terms, permissive or non-permissive, may be stated in the
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	  8. Termination.
	

	  You may not propagate or modify a covered work except as expressly
	provided under this License.  Any attempt otherwise to propagate or
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	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
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	holder fails to notify you of the violation by some reasonable means
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	  Moreover, your license from a particular copyright holder is
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	  Termination of your rights under this section does not terminate the
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	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
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	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
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	give under the previous paragraph, plus a right to possession of the
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	  You may not impose any further restrictions on the exercise of the
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	not impose a license fee, royalty, or other charge for exercise of
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	(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
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	hereafter acquired, that would be infringed by some manner, permitted
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	  Each contributor grants you a non-exclusive, worldwide, royalty-free
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	  In the following three paragraphs, a "patent license" is any express
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	  If you convey a covered work, knowingly relying on a patent license,
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	then you must either (1) cause the Corresponding Source to be so
	available, or (2) arrange to deprive yourself of the benefit of the
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	consistent with the requirements of this License, to extend the patent
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	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
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	  If, pursuant to or in connection with a single transaction or
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	  A patent license is "discriminatory" if it does not include within
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	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
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	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
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	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
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	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
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	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
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	to choose that version for the Program.
	

	  Later license versions may give you additional or different
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	  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
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	  16. Limitation of Liability.
	

	  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
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	THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
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	  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>.