LICENSE.txt
author Dirk Zimmermann <dirk@pep-project.org>
Thu, 30 Jun 2016 17:43:57 +0200
changeset 404 73aad4a39ccd
permissions -rw-r--r--
license (gpl 3)
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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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price.  Our General Public Licenses are designed to make sure that you
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have the freedom to distribute copies of free software (and charge for
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them if you wish), that you receive source code or can get it if you
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want it, that you can change the software or use pieces of it in new
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free programs, and that you know you can do these things.
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  To protect your rights, we need to prevent others from denying you
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these rights or asking you to surrender the rights.  Therefore, you have
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certain responsibilities if you distribute copies of the software, or if
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you modify it: responsibilities to respect the freedom of others.
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  For example, if you distribute copies of such a program, whether
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gratis or for a fee, you must pass on to the recipients the same
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freedoms that you received.  You must make sure that they, too, receive
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or can get the source code.  And you must show them these terms so they
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know their rights.
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  Developers that use the GNU GPL protect your rights with two steps:
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(1) assert copyright on the software, and (2) offer you this License
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giving you legal permission to copy, distribute and/or modify it.
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  For the developers' and authors' protection, the GPL clearly explains
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that there is no warranty for this free software.  For both users' and
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authors' sake, the GPL requires that modified versions be marked as
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changed, so that their problems will not be attributed erroneously to
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authors of previous versions.
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  Some devices are designed to deny users access to install or run
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modified versions of the software inside them, although the manufacturer
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can do so.  This is fundamentally incompatible with the aim of
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protecting users' freedom to change the software.  The systematic
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pattern of such abuse occurs in the area of products for individuals to
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use, which is precisely where it is most unacceptable.  Therefore, we
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have designed this version of the GPL to prohibit the practice for those
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products.  If such problems arise substantially in other domains, we
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stand ready to extend this provision to those domains in future versions
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of the GPL, as needed to protect the freedom of users.
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  Finally, every program is threatened constantly by software patents.
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States should not allow patents to restrict development and use of
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software on general-purpose computers, but in those that do, we wish to
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avoid the special danger that patents applied to a free program could
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make it effectively proprietary.  To prevent this, the GPL assures that
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patents cannot be used to render the program non-free.
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  The precise terms and conditions for copying, distribution and
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modification follow.
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                       TERMS AND CONDITIONS
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  0. Definitions.
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  "This License" refers to version 3 of the GNU General Public License.
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  "Copyright" also means copyright-like laws that apply to other kinds of
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works, such as semiconductor masks.
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  "The Program" refers to any copyrightable work licensed under this
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License.  Each licensee is addressed as "you".  "Licensees" and
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"recipients" may be individuals or organizations.
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  To "modify" a work means to copy from or adapt all or part of the work
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in a fashion requiring copyright permission, other than the making of an
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exact copy.  The resulting work is called a "modified version" of the
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earlier work or a work "based on" the earlier work.
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  A "covered work" means either the unmodified Program or a work based
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on the Program.
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  To "propagate" a work means to do anything with it that, without
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permission, would make you directly or secondarily liable for
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infringement under applicable copyright law, except executing it on a
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computer or modifying a private copy.  Propagation includes copying,
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distribution (with or without modification), making available to the
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public, and in some countries other activities as well.
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  To "convey" a work means any kind of propagation that enables other
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parties to make or receive copies.  Mere interaction with a user through
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a computer network, with no transfer of a copy, is not conveying.
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  An interactive user interface displays "Appropriate Legal Notices"
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to the extent that it includes a convenient and prominently visible
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feature that (1) displays an appropriate copyright notice, and (2)
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tells the user that there is no warranty for the work (except to the
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extent that warranties are provided), that licensees may convey the
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work under this License, and how to view a copy of this License.  If
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the interface presents a list of user commands or options, such as a
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menu, a prominent item in the list meets this criterion.
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  1. Source Code.
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  The "source code" for a work means the preferred form of the work
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for making modifications to it.  "Object code" means any non-source
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form of a work.
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standard defined by a recognized standards body, or, in the case of
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interfaces specified for a particular programming language, one that
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is widely used among developers working in that language.
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than the work as a whole, that (a) is included in the normal form of
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packaging a Major Component, but which is not part of that Major
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Component, and (b) serves only to enable use of the work with that
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Major Component, or to implement a Standard Interface for which an
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implementation is available to the public in source code form.  A
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"Major Component", in this context, means a major essential component
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(kernel, window system, and so on) of the specific operating system
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(if any) on which the executable work runs, or a compiler used to
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produce the work, or an object code interpreter used to run it.
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  The "Corresponding Source" for a work in object code form means all
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the source code needed to generate, install, and (for an executable
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work) run the object code and to modify the work, including scripts to
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control those activities.  However, it does not include the work's
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System Libraries, or general-purpose tools or generally available free
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programs which are used unmodified in performing those activities but
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which are not part of the work.  For example, Corresponding Source
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includes interface definition files associated with source files for
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the work, and the source code for shared libraries and dynamically
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linked subprograms that the work is specifically designed to require,
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such as by intimate data communication or control flow between those
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subprograms and other parts of the work.
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  The Corresponding Source need not include anything that users
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can regenerate automatically from other parts of the Corresponding
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Source.
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  The Corresponding Source for a work in source code form is that
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same work.
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  2. Basic Permissions.
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  All rights granted under this License are granted for the term of
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copyright on the Program, and are irrevocable provided the stated
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conditions are met.  This License explicitly affirms your unlimited
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permission to run the unmodified Program.  The output from running a
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covered work is covered by this License only if the output, given its
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content, constitutes a covered work.  This License acknowledges your
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rights of fair use or other equivalent, as provided by copyright law.
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  You may make, run and propagate covered works that you do not
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convey, without conditions so long as your license otherwise remains
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in force.  You may convey covered works to others for the sole purpose
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of having them make modifications exclusively for you, or provide you
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with facilities for running those works, provided that you comply with
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the terms of this License in conveying all material for which you do
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not control copyright.  Those thus making or running the covered works
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for you must do so exclusively on your behalf, under your direction
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and control, on terms that prohibit them from making any copies of
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your copyrighted material outside their relationship with you.
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  Conveying under any other circumstances is permitted solely under
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the conditions stated below.  Sublicensing is not allowed; section 10
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makes it unnecessary.
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  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
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  No covered work shall be deemed part of an effective technological
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measure under any applicable law fulfilling obligations under article
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11 of the WIPO copyright treaty adopted on 20 December 1996, or
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similar laws prohibiting or restricting circumvention of such
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measures.
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  When you convey a covered work, you waive any legal power to forbid
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circumvention of technological measures to the extent such circumvention
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is effected by exercising rights under this License with respect to
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the covered work, and you disclaim any intention to limit operation or
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modification of the work as a means of enforcing, against the work's
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users, your or third parties' legal rights to forbid circumvention of
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technological measures.
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  4. Conveying Verbatim Copies.
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  You may convey verbatim copies of the Program's source code as you
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receive it, in any medium, provided that you conspicuously and
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appropriately publish on each copy an appropriate copyright notice;
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keep intact all notices stating that this License and any
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non-permissive terms added in accord with section 7 apply to the code;
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keep intact all notices of the absence of any warranty; and give all
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recipients a copy of this License along with the Program.
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  You may charge any price or no price for each copy that you convey,
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and you may offer support or warranty protection for a fee.
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  5. Conveying Modified Source Versions.
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  You may convey a work based on the Program, or the modifications to
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produce it from the Program, in the form of source code under the
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terms of section 4, provided that you also meet all of these conditions:
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    a) The work must carry prominent notices stating that you modified
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    it, and giving a relevant date.
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    b) The work must carry prominent notices stating that it is
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    released under this License and any conditions added under section
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    7.  This requirement modifies the requirement in section 4 to
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    "keep intact all notices".
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    c) You must license the entire work, as a whole, under this
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    License to anyone who comes into possession of a copy.  This
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    License will therefore apply, along with any applicable section 7
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    additional terms, to the whole of the work, and all its parts,
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    regardless of how they are packaged.  This License gives no
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    permission to license the work in any other way, but it does not
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    invalidate such permission if you have separately received it.
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    d) If the work has interactive user interfaces, each must display
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    Appropriate Legal Notices; however, if the Program has interactive
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    interfaces that do not display Appropriate Legal Notices, your
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    work need not make them do so.
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  A compilation of a covered work with other separate and independent
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works, which are not by their nature extensions of the covered work,
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and which are not combined with it such as to form a larger program,
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in or on a volume of a storage or distribution medium, is called an
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"aggregate" if the compilation and its resulting copyright are not
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used to limit the access or legal rights of the compilation's users
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beyond what the individual works permit.  Inclusion of a covered work
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in an aggregate does not cause this License to apply to the other
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parts of the aggregate.
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  6. Conveying Non-Source Forms.
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  You may convey a covered work in object code form under the terms
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of sections 4 and 5, provided that you also convey the
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machine-readable Corresponding Source under the terms of this License,
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in one of these ways:
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    a) Convey the object code in, or embodied in, a physical product
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    (including a physical distribution medium), accompanied by the
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    Corresponding Source fixed on a durable physical medium
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    customarily used for software interchange.
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    b) Convey the object code in, or embodied in, a physical product
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    (including a physical distribution medium), accompanied by a
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    written offer, valid for at least three years and valid for as
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    long as you offer spare parts or customer support for that product
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    model, to give anyone who possesses the object code either (1) a
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    copy of the Corresponding Source for all the software in the
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    product that is covered by this License, on a durable physical
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    medium customarily used for software interchange, for a price no
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    more than your reasonable cost of physically performing this
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    conveying of source, or (2) access to copy the
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    Corresponding Source from a network server at no charge.
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    c) Convey individual copies of the object code with a copy of the
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    written offer to provide the Corresponding Source.  This
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    alternative is allowed only occasionally and noncommercially, and
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    only if you received the object code with such an offer, in accord
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    with subsection 6b.
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    d) Convey the object code by offering access from a designated
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    place (gratis or for a charge), and offer equivalent access to the
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    Corresponding Source in the same way through the same place at no
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    further charge.  You need not require recipients to copy the
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    Corresponding Source along with the object code.  If the place to
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    copy the object code is a network server, the Corresponding Source
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    may be on a different server (operated by you or a third party)
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    that supports equivalent copying facilities, provided you maintain
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    clear directions next to the object code saying where to find the
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    Corresponding Source.  Regardless of what server hosts the
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    Corresponding Source, you remain obligated to ensure that it is
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    available for as long as needed to satisfy these requirements.
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    e) Convey the object code using peer-to-peer transmission, provided
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    you inform other peers where the object code and Corresponding
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    Source of the work are being offered to the general public at no
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    charge under subsection 6d.
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  A separable portion of the object code, whose source code is excluded
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from the Corresponding Source as a System Library, need not be
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included in conveying the object code work.
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  A "User Product" is either (1) a "consumer product", which means any
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tangible personal property which is normally used for personal, family,
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or household purposes, or (2) anything designed or sold for incorporation
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into a dwelling.  In determining whether a product is a consumer product,
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doubtful cases shall be resolved in favor of coverage.  For a particular
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product received by a particular user, "normally used" refers to a
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typical or common use of that class of product, regardless of the status
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of the particular user or of the way in which the particular user
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actually uses, or expects or is expected to use, the product.  A product
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is a consumer product regardless of whether the product has substantial
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commercial, industrial or non-consumer uses, unless such uses represent
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the only significant mode of use of the product.
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  "Installation Information" for a User Product means any methods,
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procedures, authorization keys, or other information required to install
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and execute modified versions of a covered work in that User Product from
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a modified version of its Corresponding Source.  The information must
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suffice to ensure that the continued functioning of the modified object
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code is in no case prevented or interfered with solely because
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modification has been made.
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  If you convey an object code work under this section in, or with, or
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specifically for use in, a User Product, and the conveying occurs as
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part of a transaction in which the right of possession and use of the
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User Product is transferred to the recipient in perpetuity or for a
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fixed term (regardless of how the transaction is characterized), the
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Corresponding Source conveyed under this section must be accompanied
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by the Installation Information.  But this requirement does not apply
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if neither you nor any third party retains the ability to install
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modified object code on the User Product (for example, the work has
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been installed in ROM).
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  The requirement to provide Installation Information does not include a
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requirement to continue to provide support service, warranty, or updates
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for a work that has been modified or installed by the recipient, or for
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the User Product in which it has been modified or installed.  Access to a
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network may be denied when the modification itself materially and
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adversely affects the operation of the network or violates the rules and
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protocols for communication across the network.
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  Corresponding Source conveyed, and Installation Information provided,
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in accord with this section must be in a format that is publicly
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documented (and with an implementation available to the public in
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source code form), and must require no special password or key for
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unpacking, reading or copying.
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  7. Additional Terms.
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  "Additional permissions" are terms that supplement the terms of this
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License by making exceptions from one or more of its conditions.
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Additional permissions that are applicable to the entire Program shall
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be treated as though they were included in this License, to the extent
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that they are valid under applicable law.  If additional permissions
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apply only to part of the Program, that part may be used separately
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under those permissions, but the entire Program remains governed by
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this License without regard to the additional permissions.
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  When you convey a copy of a covered work, you may at your option
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remove any additional permissions from that copy, or from any part of
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it.  (Additional permissions may be written to require their own
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removal in certain cases when you modify the work.)  You may place
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additional permissions on material, added by you to a covered work,
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for which you have or can give appropriate copyright permission.
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  Notwithstanding any other provision of this License, for material you
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add to a covered work, you may (if authorized by the copyright holders of
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that material) supplement the terms of this License with terms:
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    a) Disclaiming warranty or limiting liability differently from the
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    terms of sections 15 and 16 of this License; or
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    b) Requiring preservation of specified reasonable legal notices or
dirk@404
   369
    author attributions in that material or in the Appropriate Legal
dirk@404
   370
    Notices displayed by works containing it; or
dirk@404
   371
dirk@404
   372
    c) Prohibiting misrepresentation of the origin of that material, or
dirk@404
   373
    requiring that modified versions of such material be marked in
dirk@404
   374
    reasonable ways as different from the original version; or
dirk@404
   375
dirk@404
   376
    d) Limiting the use for publicity purposes of names of licensors or
dirk@404
   377
    authors of the material; or
dirk@404
   378
dirk@404
   379
    e) Declining to grant rights under trademark law for use of some
dirk@404
   380
    trade names, trademarks, or service marks; or
dirk@404
   381
dirk@404
   382
    f) Requiring indemnification of licensors and authors of that
dirk@404
   383
    material by anyone who conveys the material (or modified versions of
dirk@404
   384
    it) with contractual assumptions of liability to the recipient, for
dirk@404
   385
    any liability that these contractual assumptions directly impose on
dirk@404
   386
    those licensors and authors.
dirk@404
   387
dirk@404
   388
  All other non-permissive additional terms are considered "further
dirk@404
   389
restrictions" within the meaning of section 10.  If the Program as you
dirk@404
   390
received it, or any part of it, contains a notice stating that it is
dirk@404
   391
governed by this License along with a term that is a further
dirk@404
   392
restriction, you may remove that term.  If a license document contains
dirk@404
   393
a further restriction but permits relicensing or conveying under this
dirk@404
   394
License, you may add to a covered work material governed by the terms
dirk@404
   395
of that license document, provided that the further restriction does
dirk@404
   396
not survive such relicensing or conveying.
dirk@404
   397
dirk@404
   398
  If you add terms to a covered work in accord with this section, you
dirk@404
   399
must place, in the relevant source files, a statement of the
dirk@404
   400
additional terms that apply to those files, or a notice indicating
dirk@404
   401
where to find the applicable terms.
dirk@404
   402
dirk@404
   403
  Additional terms, permissive or non-permissive, may be stated in the
dirk@404
   404
form of a separately written license, or stated as exceptions;
dirk@404
   405
the above requirements apply either way.
dirk@404
   406
dirk@404
   407
  8. Termination.
dirk@404
   408
dirk@404
   409
  You may not propagate or modify a covered work except as expressly
dirk@404
   410
provided under this License.  Any attempt otherwise to propagate or
dirk@404
   411
modify it is void, and will automatically terminate your rights under
dirk@404
   412
this License (including any patent licenses granted under the third
dirk@404
   413
paragraph of section 11).
dirk@404
   414
dirk@404
   415
  However, if you cease all violation of this License, then your
dirk@404
   416
license from a particular copyright holder is reinstated (a)
dirk@404
   417
provisionally, unless and until the copyright holder explicitly and
dirk@404
   418
finally terminates your license, and (b) permanently, if the copyright
dirk@404
   419
holder fails to notify you of the violation by some reasonable means
dirk@404
   420
prior to 60 days after the cessation.
dirk@404
   421
dirk@404
   422
  Moreover, your license from a particular copyright holder is
dirk@404
   423
reinstated permanently if the copyright holder notifies you of the
dirk@404
   424
violation by some reasonable means, this is the first time you have
dirk@404
   425
received notice of violation of this License (for any work) from that
dirk@404
   426
copyright holder, and you cure the violation prior to 30 days after
dirk@404
   427
your receipt of the notice.
dirk@404
   428
dirk@404
   429
  Termination of your rights under this section does not terminate the
dirk@404
   430
licenses of parties who have received copies or rights from you under
dirk@404
   431
this License.  If your rights have been terminated and not permanently
dirk@404
   432
reinstated, you do not qualify to receive new licenses for the same
dirk@404
   433
material under section 10.
dirk@404
   434
dirk@404
   435
  9. Acceptance Not Required for Having Copies.
dirk@404
   436
dirk@404
   437
  You are not required to accept this License in order to receive or
dirk@404
   438
run a copy of the Program.  Ancillary propagation of a covered work
dirk@404
   439
occurring solely as a consequence of using peer-to-peer transmission
dirk@404
   440
to receive a copy likewise does not require acceptance.  However,
dirk@404
   441
nothing other than this License grants you permission to propagate or
dirk@404
   442
modify any covered work.  These actions infringe copyright if you do
dirk@404
   443
not accept this License.  Therefore, by modifying or propagating a
dirk@404
   444
covered work, you indicate your acceptance of this License to do so.
dirk@404
   445
dirk@404
   446
  10. Automatic Licensing of Downstream Recipients.
dirk@404
   447
dirk@404
   448
  Each time you convey a covered work, the recipient automatically
dirk@404
   449
receives a license from the original licensors, to run, modify and
dirk@404
   450
propagate that work, subject to this License.  You are not responsible
dirk@404
   451
for enforcing compliance by third parties with this License.
dirk@404
   452
dirk@404
   453
  An "entity transaction" is a transaction transferring control of an
dirk@404
   454
organization, or substantially all assets of one, or subdividing an
dirk@404
   455
organization, or merging organizations.  If propagation of a covered
dirk@404
   456
work results from an entity transaction, each party to that
dirk@404
   457
transaction who receives a copy of the work also receives whatever
dirk@404
   458
licenses to the work the party's predecessor in interest had or could
dirk@404
   459
give under the previous paragraph, plus a right to possession of the
dirk@404
   460
Corresponding Source of the work from the predecessor in interest, if
dirk@404
   461
the predecessor has it or can get it with reasonable efforts.
dirk@404
   462
dirk@404
   463
  You may not impose any further restrictions on the exercise of the
dirk@404
   464
rights granted or affirmed under this License.  For example, you may
dirk@404
   465
not impose a license fee, royalty, or other charge for exercise of
dirk@404
   466
rights granted under this License, and you may not initiate litigation
dirk@404
   467
(including a cross-claim or counterclaim in a lawsuit) alleging that
dirk@404
   468
any patent claim is infringed by making, using, selling, offering for
dirk@404
   469
sale, or importing the Program or any portion of it.
dirk@404
   470
dirk@404
   471
  11. Patents.
dirk@404
   472
dirk@404
   473
  A "contributor" is a copyright holder who authorizes use under this
dirk@404
   474
License of the Program or a work on which the Program is based.  The
dirk@404
   475
work thus licensed is called the contributor's "contributor version".
dirk@404
   476
dirk@404
   477
  A contributor's "essential patent claims" are all patent claims
dirk@404
   478
owned or controlled by the contributor, whether already acquired or
dirk@404
   479
hereafter acquired, that would be infringed by some manner, permitted
dirk@404
   480
by this License, of making, using, or selling its contributor version,
dirk@404
   481
but do not include claims that would be infringed only as a
dirk@404
   482
consequence of further modification of the contributor version.  For
dirk@404
   483
purposes of this definition, "control" includes the right to grant
dirk@404
   484
patent sublicenses in a manner consistent with the requirements of
dirk@404
   485
this License.
dirk@404
   486
dirk@404
   487
  Each contributor grants you a non-exclusive, worldwide, royalty-free
dirk@404
   488
patent license under the contributor's essential patent claims, to
dirk@404
   489
make, use, sell, offer for sale, import and otherwise run, modify and
dirk@404
   490
propagate the contents of its contributor version.
dirk@404
   491
dirk@404
   492
  In the following three paragraphs, a "patent license" is any express
dirk@404
   493
agreement or commitment, however denominated, not to enforce a patent
dirk@404
   494
(such as an express permission to practice a patent or covenant not to
dirk@404
   495
sue for patent infringement).  To "grant" such a patent license to a
dirk@404
   496
party means to make such an agreement or commitment not to enforce a
dirk@404
   497
patent against the party.
dirk@404
   498
dirk@404
   499
  If you convey a covered work, knowingly relying on a patent license,
dirk@404
   500
and the Corresponding Source of the work is not available for anyone
dirk@404
   501
to copy, free of charge and under the terms of this License, through a
dirk@404
   502
publicly available network server or other readily accessible means,
dirk@404
   503
then you must either (1) cause the Corresponding Source to be so
dirk@404
   504
available, or (2) arrange to deprive yourself of the benefit of the
dirk@404
   505
patent license for this particular work, or (3) arrange, in a manner
dirk@404
   506
consistent with the requirements of this License, to extend the patent
dirk@404
   507
license to downstream recipients.  "Knowingly relying" means you have
dirk@404
   508
actual knowledge that, but for the patent license, your conveying the
dirk@404
   509
covered work in a country, or your recipient's use of the covered work
dirk@404
   510
in a country, would infringe one or more identifiable patents in that
dirk@404
   511
country that you have reason to believe are valid.
dirk@404
   512
dirk@404
   513
  If, pursuant to or in connection with a single transaction or
dirk@404
   514
arrangement, you convey, or propagate by procuring conveyance of, a
dirk@404
   515
covered work, and grant a patent license to some of the parties
dirk@404
   516
receiving the covered work authorizing them to use, propagate, modify
dirk@404
   517
or convey a specific copy of the covered work, then the patent license
dirk@404
   518
you grant is automatically extended to all recipients of the covered
dirk@404
   519
work and works based on it.
dirk@404
   520
dirk@404
   521
  A patent license is "discriminatory" if it does not include within
dirk@404
   522
the scope of its coverage, prohibits the exercise of, or is
dirk@404
   523
conditioned on the non-exercise of one or more of the rights that are
dirk@404
   524
specifically granted under this License.  You may not convey a covered
dirk@404
   525
work if you are a party to an arrangement with a third party that is
dirk@404
   526
in the business of distributing software, under which you make payment
dirk@404
   527
to the third party based on the extent of your activity of conveying
dirk@404
   528
the work, and under which the third party grants, to any of the
dirk@404
   529
parties who would receive the covered work from you, a discriminatory
dirk@404
   530
patent license (a) in connection with copies of the covered work
dirk@404
   531
conveyed by you (or copies made from those copies), or (b) primarily
dirk@404
   532
for and in connection with specific products or compilations that
dirk@404
   533
contain the covered work, unless you entered into that arrangement,
dirk@404
   534
or that patent license was granted, prior to 28 March 2007.
dirk@404
   535
dirk@404
   536
  Nothing in this License shall be construed as excluding or limiting
dirk@404
   537
any implied license or other defenses to infringement that may
dirk@404
   538
otherwise be available to you under applicable patent law.
dirk@404
   539
dirk@404
   540
  12. No Surrender of Others' Freedom.
dirk@404
   541
dirk@404
   542
  If conditions are imposed on you (whether by court order, agreement or
dirk@404
   543
otherwise) that contradict the conditions of this License, they do not
dirk@404
   544
excuse you from the conditions of this License.  If you cannot convey a
dirk@404
   545
covered work so as to satisfy simultaneously your obligations under this
dirk@404
   546
License and any other pertinent obligations, then as a consequence you may
dirk@404
   547
not convey it at all.  For example, if you agree to terms that obligate you
dirk@404
   548
to collect a royalty for further conveying from those to whom you convey
dirk@404
   549
the Program, the only way you could satisfy both those terms and this
dirk@404
   550
License would be to refrain entirely from conveying the Program.
dirk@404
   551
dirk@404
   552
  13. Use with the GNU Affero General Public License.
dirk@404
   553
dirk@404
   554
  Notwithstanding any other provision of this License, you have
dirk@404
   555
permission to link or combine any covered work with a work licensed
dirk@404
   556
under version 3 of the GNU Affero General Public License into a single
dirk@404
   557
combined work, and to convey the resulting work.  The terms of this
dirk@404
   558
License will continue to apply to the part which is the covered work,
dirk@404
   559
but the special requirements of the GNU Affero General Public License,
dirk@404
   560
section 13, concerning interaction through a network will apply to the
dirk@404
   561
combination as such.
dirk@404
   562
dirk@404
   563
  14. Revised Versions of this License.
dirk@404
   564
dirk@404
   565
  The Free Software Foundation may publish revised and/or new versions of
dirk@404
   566
the GNU General Public License from time to time.  Such new versions will
dirk@404
   567
be similar in spirit to the present version, but may differ in detail to
dirk@404
   568
address new problems or concerns.
dirk@404
   569
dirk@404
   570
  Each version is given a distinguishing version number.  If the
dirk@404
   571
Program specifies that a certain numbered version of the GNU General
dirk@404
   572
Public License "or any later version" applies to it, you have the
dirk@404
   573
option of following the terms and conditions either of that numbered
dirk@404
   574
version or of any later version published by the Free Software
dirk@404
   575
Foundation.  If the Program does not specify a version number of the
dirk@404
   576
GNU General Public License, you may choose any version ever published
dirk@404
   577
by the Free Software Foundation.
dirk@404
   578
dirk@404
   579
  If the Program specifies that a proxy can decide which future
dirk@404
   580
versions of the GNU General Public License can be used, that proxy's
dirk@404
   581
public statement of acceptance of a version permanently authorizes you
dirk@404
   582
to choose that version for the Program.
dirk@404
   583
dirk@404
   584
  Later license versions may give you additional or different
dirk@404
   585
permissions.  However, no additional obligations are imposed on any
dirk@404
   586
author or copyright holder as a result of your choosing to follow a
dirk@404
   587
later version.
dirk@404
   588
dirk@404
   589
  15. Disclaimer of Warranty.
dirk@404
   590
dirk@404
   591
  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
dirk@404
   592
APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
dirk@404
   593
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
dirk@404
   594
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
dirk@404
   595
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
dirk@404
   596
PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
dirk@404
   597
IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
dirk@404
   598
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
dirk@404
   599
dirk@404
   600
  16. Limitation of Liability.
dirk@404
   601
dirk@404
   602
  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
dirk@404
   603
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
dirk@404
   604
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
dirk@404
   605
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
dirk@404
   606
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
dirk@404
   607
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
dirk@404
   608
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
dirk@404
   609
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
dirk@404
   610
SUCH DAMAGES.
dirk@404
   611
dirk@404
   612
  17. Interpretation of Sections 15 and 16.
dirk@404
   613
dirk@404
   614
  If the disclaimer of warranty and limitation of liability provided
dirk@404
   615
above cannot be given local legal effect according to their terms,
dirk@404
   616
reviewing courts shall apply local law that most closely approximates
dirk@404
   617
an absolute waiver of all civil liability in connection with the
dirk@404
   618
Program, unless a warranty or assumption of liability accompanies a
dirk@404
   619
copy of the Program in return for a fee.
dirk@404
   620
dirk@404
   621
                     END OF TERMS AND CONDITIONS
dirk@404
   622
dirk@404
   623
            How to Apply These Terms to Your New Programs
dirk@404
   624
dirk@404
   625
  If you develop a new program, and you want it to be of the greatest
dirk@404
   626
possible use to the public, the best way to achieve this is to make it
dirk@404
   627
free software which everyone can redistribute and change under these terms.
dirk@404
   628
dirk@404
   629
  To do so, attach the following notices to the program.  It is safest
dirk@404
   630
to attach them to the start of each source file to most effectively
dirk@404
   631
state the exclusion of warranty; and each file should have at least
dirk@404
   632
the "copyright" line and a pointer to where the full notice is found.
dirk@404
   633
dirk@404
   634
    <one line to give the program's name and a brief idea of what it does.>
dirk@404
   635
    Copyright (C) <year>  <name of author>
dirk@404
   636
dirk@404
   637
    This program is free software: you can redistribute it and/or modify
dirk@404
   638
    it under the terms of the GNU General Public License as published by
dirk@404
   639
    the Free Software Foundation, either version 3 of the License, or
dirk@404
   640
    (at your option) any later version.
dirk@404
   641
dirk@404
   642
    This program is distributed in the hope that it will be useful,
dirk@404
   643
    but WITHOUT ANY WARRANTY; without even the implied warranty of
dirk@404
   644
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
dirk@404
   645
    GNU General Public License for more details.
dirk@404
   646
dirk@404
   647
    You should have received a copy of the GNU General Public License
dirk@404
   648
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
dirk@404
   649
dirk@404
   650
Also add information on how to contact you by electronic and paper mail.
dirk@404
   651
dirk@404
   652
  If the program does terminal interaction, make it output a short
dirk@404
   653
notice like this when it starts in an interactive mode:
dirk@404
   654
dirk@404
   655
    <program>  Copyright (C) <year>  <name of author>
dirk@404
   656
    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
dirk@404
   657
    This is free software, and you are welcome to redistribute it
dirk@404
   658
    under certain conditions; type `show c' for details.
dirk@404
   659
dirk@404
   660
The hypothetical commands `show w' and `show c' should show the appropriate
dirk@404
   661
parts of the General Public License.  Of course, your program's commands
dirk@404
   662
might be different; for a GUI interface, you would use an "about box".
dirk@404
   663
dirk@404
   664
  You should also get your employer (if you work as a programmer) or school,
dirk@404
   665
if any, to sign a "copyright disclaimer" for the program, if necessary.
dirk@404
   666
For more information on this, and how to apply and follow the GNU GPL, see
dirk@404
   667
<http://www.gnu.org/licenses/>.
dirk@404
   668
dirk@404
   669
  The GNU General Public License does not permit incorporating your program
dirk@404
   670
into proprietary programs.  If your program is a subroutine library, you
dirk@404
   671
may consider it more useful to permit linking proprietary applications with
dirk@404
   672
the library.  If this is what you want to do, use the GNU Lesser General
dirk@404
   673
Public License instead of this License.  But first, please read
dirk@404
   674
<http://www.gnu.org/philosophy/why-not-lgpl.html>.