=======================================================================
Licence: :abbr:`GNU (GNU is Not Unix)` General Public License version 3
=======================================================================

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 :abbr:`GNU (GNU is Not Unix)` 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
:abbr:`GNU (GNU is Not Unix)` 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 :abbr:`GNU (GNU is Not Unix)` 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 them if you wish),
that you receive source code or can get it if you want it, that you can
change the software or use pieces of it in new free programs, and that you
know you can do these things.

To protect your rights, we need to prevent others from denying you these
rights or asking you to surrender the rights.  Therefore, you have certain
responsibilities if you distribute copies of the software, or if you modify
it: responsibilities to respect the freedom of others.

For example, if you distribute copies of such a program, whether gratis or
for a fee, you must pass on to the recipients the same freedoms that you
received.  You must make sure that they, too, receive or can get the source
code.  And you must show them these terms so they know their rights.

Developers that use the :abbr:`GNU (GNU is Not Unix)` :abbr:`GPL
(General Public License)` protect your rights with two steps: (1)
assert copyright on the software, and (2) offer you this License
giving you legal permission to copy, distribute and/or modify it.

For the developers' and authors' protection, the :abbr:`GPL (General
Public License)` clearly explains that there is no warranty for this
free software.  For both users' and authors' sake, the :abbr:`GPL
(General Public License)` requires that modified versions be marked as
changed, so that their problems will not be attributed erroneously to
authors of previous versions.

Some devices are designed to deny users access to install or run
modified versions of the software inside them, although the
manufacturer can do so.  This is fundamentally incompatible with the
aim of protecting users' freedom to change the software.  The
systematic pattern of such abuse occurs in the area of products for
individuals to use, which is precisely where it is most unacceptable.
Therefore, we have designed this version of the :abbr:`GPL (General
Public License)` to prohibit the practice for those products.  If such
problems arise substantially in other domains, we stand ready to
extend this provision to those domains in future versions of the
:abbr:`GPL (General Public License)`, as needed to protect the freedom
of users.

Finally, every program is threatened constantly by software patents.
States should not allow patents to restrict development and use of
software on general-purpose computers, but in those that do, we wish
to avoid the special danger that patents applied to a free program
could make it effectively proprietary.  To prevent this, the
:abbr:`GPL (General Public License)` assures that patents cannot be
used to render the program non-free.

The precise terms and conditions for copying, distribution and modification
follow.

TERMS AND CONDITIONS
--------------------

0. Definitions.
~~~~~~~~~~~~~~~

"This License" refers to version 3 of the :abbr:`GNU (GNU is Not Unix)`
General Public License.

"Copyright" also means copyright-like laws that apply to other
kinds of works, such as semiconductor masks.

"The Program" refers to any copyrightable work licensed under
this License.  Each licensee is addressed as "you".
"Licensees" and "recipients" may be individuals or
organizations.

To "modify" a work means to copy from or adapt all or part of
the work in a fashion requiring copyright permission, other than the making
of an exact copy.  The resulting work is called a "modified
version" of the earlier work or a work "based on" the
earlier work.

A "covered work" means either the unmodified Program or a work
based on the Program.

To "propagate" a work means to do anything with it that, without
permission, would make you directly or secondarily liable for infringement
under applicable copyright law, except executing it on a computer or
modifying a private copy.  Propagation includes copying, distribution (with
or without modification), making available to the public, and in some
countries other activities as well.

To "convey" a work means any kind of propagation that enables
other parties to make or receive copies.  Mere interaction with a user
through a computer network, with no transfer of a copy, is not conveying.

An interactive user interface displays "Appropriate Legal
Notices" to the extent that it includes a convenient and prominently
visible feature that (1) displays an appropriate copyright notice, and (2)
tells the user that there is no warranty for the work (except to the extent
that warranties are provided), that licensees may convey the work under this
License, and how to view a copy of this License.  If the interface presents
a list of user commands or options, such as a menu, a prominent item in the
list meets this criterion.

1. Source Code.
~~~~~~~~~~~~~~~

The "source code" for a work means the preferred form of the
work for making modifications to it.  "Object code" means any
non-source form of a work.

A "Standard Interface" means an interface that either is an
official standard defined by a recognized standards body, or, in the case of
interfaces specified for a particular programming language, one that is
widely used among developers working in that language.

The "System Libraries" of an executable work include anything,
other than the work as a whole, that (a) is included in the normal form of
packaging a Major Component, but which is not part of that Major Component,
and (b) serves only to enable use of the work with that Major Component, or
to implement a Standard Interface for which an implementation is available
to the public in source code form.  A "Major Component", in this
context, means a major essential component (kernel, window system, and so
on) of the specific operating system (if any) on which the executable work
runs, or a compiler used to produce the work, or an object code interpreter
used to run it.

The "Corresponding Source" for a work in object code form means
all the source code needed to generate, install, and (for an executable
work) run the object code and to modify the work, including scripts to
control those activities.  However, it does not include the work's
System Libraries, or general-purpose tools or generally available free
programs which are used unmodified in performing those activities but which
are not part of the work.  For example, Corresponding Source includes
interface definition files associated with source files for the work, and
the source code for shared libraries and dynamically linked subprograms that
the work is specifically designed to require, such as by intimate data
communication or control flow between those subprograms and other parts of
the work.

The Corresponding Source need not include anything that users can regenerate
automatically from other parts of the Corresponding Source.

The Corresponding Source for a work in source code form is that same work.

2. Basic Permissions.
~~~~~~~~~~~~~~~~~~~~~

All rights granted under this License are granted for the term of copyright
on the Program, and are irrevocable provided the stated conditions are met.
This License explicitly affirms your unlimited permission to run the
unmodified Program.  The output from running a covered work is covered by
this License only if the output, given its content, constitutes a covered
work.  This License acknowledges your rights of fair use or other
equivalent, as provided by copyright law.

You may make, run and propagate covered works that you do not convey,
without conditions so long as your license otherwise remains in force.  You
may convey covered works to others for the sole purpose of having them make
modifications exclusively for you, or provide you with facilities for
running those works, provided that you comply with the terms of this License
in conveying all material for which you do not control copyright.  Those
thus making or running the covered works for you must do so exclusively on
your behalf, under your direction and control, on terms that prohibit them
from making any copies of your copyrighted material outside their
relationship with you.

Conveying under any other circumstances is permitted solely under the
conditions stated below.  Sublicensing is not allowed; section 10 makes it
unnecessary.

3. Protecting Users' Legal Rights From Anti-Circumvention Law.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

No covered work shall be deemed part of an effective technological measure
under any applicable law fulfilling obligations under article 11 of the WIPO
copyright treaty adopted on 20 December 1996, or similar laws prohibiting or
restricting circumvention of such measures.

When you convey a covered work, you waive any legal power to forbid
circumvention of technological measures to the extent such circumvention is
effected by exercising rights under this License with respect to the covered
work, and you disclaim any intention to limit operation or modification of
the work as a means of enforcing, against the work's users, your or
third parties' legal rights to forbid circumvention of technological
measures.

4. Conveying Verbatim Copies.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

You may convey verbatim copies of the Program's source code as you
receive it, in any medium, provided that you conspicuously and appropriately
publish on each copy an appropriate copyright notice; keep intact all
notices stating that this License and any non-permissive terms added in
accord with section 7 apply to the code; keep intact all notices of the
absence of any warranty; and give all recipients a copy of this License
along with the Program.

You may charge any price or no price for each copy that you convey, and you
may offer support or warranty protection for a fee.

5. Conveying Modified Source Versions.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

You may convey a work based on the Program, or the modifications to produce
it from the Program, in the form of source code under the terms of section
4, provided that you also meet all of these conditions:

#. The work must carry prominent notices stating that you modified it,
   and giving a relevant date.

#. The work must carry prominent notices stating that it is released
   under this License and any conditions added under section 7.  This
   requirement modifies the requirement in section 4 to "keep intact
   all notices".

#. You must license the entire work, as a whole, under this License to
   anyone who comes into possession of a copy.  This License will
   therefore apply, along with any applicable section 7 additional
   terms, to the whole of the work, and all its parts, regardless of
   how they are packaged.  This License gives no permission to license
   the work in any other way, but it does not invalidate such
   permission if you have separately received it.

#. If the work has interactive user interfaces, each must display
   Appropriate Legal Notices; however, if the Program has interactive
   interfaces that do not display Appropriate Legal Notices, your work
   need not make them do so.

A compilation of a covered work with other separate and independent works,
which are not by their nature extensions of the covered work, and which are
not combined with it such as to form a larger program, in or on a volume of
a storage or distribution medium, is called an "aggregate" if
the compilation and its resulting copyright are not used to limit the access
or legal rights of the compilation's users beyond what the individual works
permit.  Inclusion of a covered work in an aggregate does not cause
this License to apply to the other parts of the aggregate.

6. Conveying Non-Source Forms.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

You may convey a covered work in object code form under the terms of
sections 4 and 5, provided that you also convey the machine-readable
Corresponding Source under the terms of this License, in one of these ways:

#. Convey the object code in, or embodied in, a physical product
   (including a physical distribution medium), accompanied by the
   Corresponding Source fixed on a durable physical medium customarily
   used for software interchange.

#. Convey the object code in, or embodied in, a physical product
   (including a physical distribution medium), accompanied by a
   written offer, valid for at least three years and valid for as long
   as you offer spare parts or customer support for that product
   model, to give anyone who possesses the object code either (1) a
   copy of the Corresponding Source for all the software in the
   product that is covered by this License, on a durable physical
   medium customarily used for software interchange, for a price no
   more than your reasonable cost of physically performing this
   conveying of source, or (2) access to copy the Corresponding Source
   from a network server at no charge.

#. Convey individual copies of the object code with a copy of the
   written offer to provide the Corresponding Source.  This
   alternative is allowed only occasionally and noncommercially, and
   only if you received the object code with such an offer, in accord
   with subsection 6b.

#. Convey the object code by offering access from a designated place
   (gratis or for a charge), and offer equivalent access to the
   Corresponding Source in the same way through the same place at no
   further charge.  You need not require recipients to copy the
   Corresponding Source along with the object code.  If the place to
   copy the object code is a network server, the Corresponding Source
   may be on a different server (operated by you or a third party)
   that supports equivalent copying facilities, provided you maintain
   clear directions next to the object code saying where to find the
   Corresponding Source.  Regardless of what server hosts the
   Corresponding Source, you remain obligated to ensure that it is
   available for as long as needed to satisfy these requirements.

#. Convey the object code using peer-to-peer transmission, provided
   you inform other peers where the object code and Corresponding
   Source of the work are being offered to the general public at no
   charge under subsection 6d.

A separable portion of the object code, whose source code is excluded
from the Corresponding Source as a System Library, need not be
included in conveying the object code work.

A "User Product" is either (1) a "consumer product", which means any
tangible personal property which is normally used for personal,
family, or household purposes, or (2) anything designed or sold for
incorporation into a dwelling.  In determining whether a product is a
consumer product, doubtful cases shall be resolved in favor of
coverage.  For a particular product received by a particular user,
"normally used" refers to a typical or common use of that class of
product, regardless of the status of the particular user or of the way
in which the particular user actually uses, or expects or is expected
to use, the product.  A product is a consumer product regardless of
whether the product has substantial commercial, industrial or
non-consumer uses, unless such uses represent the only significant
mode of use of the product.

"Installation Information" for a User Product means any methods,
procedures, authorization keys, or other information required to
install and execute modified versions of a covered work in that User
Product from a modified version of its Corresponding Source.  The
information must suffice to ensure that the continued functioning of
the modified object code is in no case prevented or interfered with
solely because modification has been made.

If you convey an object code work under this section in, or with, or
specifically for use in, a User Product, and the conveying occurs as
part of a transaction in which the right of possession and use of the
User Product is transferred to the recipient in perpetuity or for a
fixed term (regardless of how the transaction is characterized), the
Corresponding Source conveyed under this section must be accompanied
by the Installation Information.  But this requirement does not apply
if neither you nor any third party retains the ability to install
modified object code on the User Product (for example, the work has
been installed in :abbr:`ROM`).

The requirement to provide Installation Information does not include a
requirement to continue to provide support service, warranty, or
updates for a work that has been modified or installed by the
recipient, or for the User Product in which it has been modified or
installed.  Access to a network may be denied when the modification
itself materially and adversely affects the operation of the network
or violates the rules and protocols for communication across the
network.

Corresponding Source conveyed, and Installation Information provided, in
accord with this section must be in a format that is publicly documented
(and with an implementation available to the public in source code form),
and must require no special password or key for unpacking, reading or
copying.

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 it.  (Additional
permissions may be written to require their own 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.

Notwithstanding any other provision of this License, for material you add
to a covered work, you may (if authorized by the copyright holders of that
material) supplement the terms of this License with terms:

#. Disclaiming warranty or limiting liability differently from the
   terms of sections 15 and 16 of this License; or

#. Requiring preservation of specified reasonable legal notices or
   author attributions in that material or in the Appropriate Legal
   Notices displayed by works containing it; or

#. Prohibiting misrepresentation of the origin of that material, or
   requiring that modified versions of such material be marked in
   reasonable ways as different from the original version; or

#. Limiting the use for publicity purposes of names of licensors or
   authors of the material; or

#. Declining to grant rights under trademark law for use of some trade
   names, trademarks, or service marks; or

#. Requiring indemnification of licensors and authors of that material
   by anyone who conveys the material (or modified versions of it)
   with contractual assumptions of liability to the recipient, for any
   liability that these contractual assumptions directly impose on
   those licensors and authors.

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 restriction,
you may remove that term.  If a license document contains a further
restriction but permits relicensing or conveying under this License, you
may add to a covered work material governed by the terms of that license
document, provided that the further restriction does not survive such
relicensing or conveying.

If you add terms to a covered work in accord with this section, you must
place, in the relevant source files, a statement of the additional terms
that apply to those files, or a notice indicating where to find the
applicable terms.

Additional terms, permissive or non-permissive, may be stated in the form
of a separately written license, or stated as exceptions; 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 license from
a particular copyright holder is reinstated (a) 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 licenses to the work the
party's predecessor in interest had or could give under the previous
paragraph, plus a right to possession of the 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 :abbr:`GNU (GNU is Not Unix)` 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
:abbr:`GNU (GNU is Not Unix)` 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 :abbr:`GNU (GNU is Not Unix)` 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 :abbr:`GNU (GNU is Not Unix)` 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 :abbr:`GNU (GNU is
Not Unix)` 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 :abbr:`GNU (GNU is Not Unix)` 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 :abbr:`GNU (GNU is Not Unix)` 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 :abbr:`GNU (GNU is Not Unix)`
    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:abbr:`GNU (GNU is Not Unix)` General Public License for more
    details.  You should have received a copy of the :abbr:`GNU (GNU
    is Not Unix)` 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 :abbr:`GNU (GNU is Not Unix)` :abbr:`GPL (General Public
License)`, see http://www.gnu.org/licenses/.

The :abbr:`GNU (GNU is Not Unix)` 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 :abbr:`GNU (GNU is Not Unix)` Lesser
General Public License instead of this License.  But first, please
read http://www.gnu.org/philosophy/why-not-lgpl.html.

