From The Mana World
 
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                    GNU GENERAL PUBLIC LICENSE
                      Version 2, June 1991


  Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
                GNU Free Documentation License
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
                Version 1.3, 3 November 2008
 
 
  Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
    <http://fsf.org/>
  Everyone is permitted to copy and distribute verbatim copies
  Everyone is permitted to copy and distribute verbatim copies
  of this license document, but changing it is not allowed.
  of this license document, but changing it is not allowed.


                            Preamble
0. PREAMBLE
 
The purpose of this License is to make a manual, textbook, or other
functional and useful document "free" in the sense of freedom: to
assure everyone the effective freedom to copy and redistribute it,
with or without modifying it, either commercially or noncommercially.
Secondarily, this License preserves for the author and publisher a way
to get credit for their work, while not being considered responsible
for modifications made by others.
 
This License is a kind of "copyleft", which means that derivative
works of the document must themselves be free in the same sense.  It
complements the GNU General Public License, which is a copyleft
license designed for free software.


  The licenses for most software are designed to take away your
We have designed this License in order to use it for manuals for free
freedom to share and change it.  By contrast, the GNU General Public
software, because free software needs free documentation: a free
License is intended to guarantee your freedom to share and change free
program should come with manuals providing the same freedoms that the
software--to make sure the software is free for all its usersThis
software doesBut this License is not limited to software manuals;
General Public License applies to most of the Free Software
it can be used for any textual work, regardless of subject matter or
Foundation's software and to any other program whose authors commit to
whether it is published as a printed bookWe recommend this License
using it.  (Some other Free Software Foundation software is covered by
principally for works whose purpose is instruction or reference.
the GNU Lesser General Public License instead.)  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
this service 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 make restrictions that forbid
1. APPLICABILITY AND DEFINITIONS
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.


  For example, if you distribute copies of such a program, whether
This License applies to any manual or other work, in any medium, that
gratis or for a fee, you must give the recipients all the rights that
contains a notice placed by the copyright holder saying it can be
you haveYou must make sure that they, too, receive or can get the
distributed under the terms of this License.  Such a notice grants a
source codeAnd you must show them these terms so they know their
world-wide, royalty-free license, unlimited in duration, to use that
rights.
work under the conditions stated hereinThe "Document", below,
refers to any such manual or work.  Any member of the public is a
licensee, and is addressed as "you"You accept the license if you
copy, modify or distribute the work in a way requiring permission
under copyright law.


  We protect your rights with two steps: (1) copyright the software, and
A "Modified Version" of the Document means any work containing the
(2) offer you this license which gives you legal permission to copy,
Document or a portion of it, either copied verbatim, or with
distribute and/or modify the software.
modifications and/or translated into another language.


  Also, for each author's protection and ours, we want to make certain
A "Secondary Section" is a named appendix or a front-matter section of
that everyone understands that there is no warranty for this free
the Document that deals exclusively with the relationship of the
softwareIf the software is modified by someone else and passed on, we
publishers or authors of the Document to the Document's overall
want its recipients to know that what they have is not the original, so
subject (or to related matters) and contains nothing that could fall
that any problems introduced by others will not reflect on the original
directly within that overall subject(Thus, if the Document is in
authors' reputations.
part a textbook of mathematics, a Secondary Section may not explain
any mathematics.)  The relationship could be a matter of historical
connection with the subject or with related matters, or of legal,
commercial, philosophical, ethical or political position regarding
them.


  Finally, any free program is threatened constantly by software
The "Invariant Sections" are certain Secondary Sections whose titles
patentsWe wish to avoid the danger that redistributors of a free
are designated, as being those of Invariant Sections, in the notice
program will individually obtain patent licenses, in effect making the
that says that the Document is released under this LicenseIf a
program proprietaryTo prevent this, we have made it clear that any
section does not fit the above definition of Secondary then it is not
patent must be licensed for everyone's free use or not licensed at all.
allowed to be designated as Invariant.  The Document may contain zero
Invariant SectionsIf the Document does not identify any Invariant
Sections then there are none.


  The precise terms and conditions for copying, distribution and
The "Cover Texts" are certain short passages of text that are listed,
modification follow.
as Front-Cover Texts or Back-Cover Texts, in the notice that says that
the Document is released under this License.  A Front-Cover Text may
be at most 5 words, and a Back-Cover Text may be at most 25 words.


                    GNU GENERAL PUBLIC LICENSE
A "Transparent" copy of the Document means a machine-readable copy,
  TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
represented in a format whose specification is available to the
general public, that is suitable for revising the document
straightforwardly with generic text editors or (for images composed of
pixels) generic paint programs or (for drawings) some widely available
drawing editor, and that is suitable for input to text formatters or
for automatic translation to a variety of formats suitable for input
to text formatters.  A copy made in an otherwise Transparent file
format whose markup, or absence of markup, has been arranged to thwart
or discourage subsequent modification by readers is not Transparent.
An image format is not Transparent if used for any substantial amount
of text.  A copy that is not "Transparent" is called "Opaque".


  0. This License applies to any program or other work which contains
Examples of suitable formats for Transparent copies include plain
a notice placed by the copyright holder saying it may be distributed
ASCII without markup, Texinfo input format, LaTeX input format, SGML
under the terms of this General Public License.  The "Program", below,
or XML using a publicly available DTD, and standard-conforming simple
refers to any such program or work, and a "work based on the Program"
HTML, PostScript or PDF designed for human modification.  Examples of
means either the Program or any derivative work under copyright law:
transparent image formats include PNG, XCF and JPG.  Opaque formats
that is to say, a work containing the Program or a portion of it,
include proprietary formats that can be read and edited only by
either verbatim or with modifications and/or translated into another
proprietary word processors, SGML or XML for which the DTD and/or
language.  (Hereinafter, translation is included without limitation in
processing tools are not generally available, and the
the term "modification".)  Each licensee is addressed as "you".
machine-generated HTML, PostScript or PDF produced by some word
processors for output purposes only.


Activities other than copying, distribution and modification are not
The "Title Page" means, for a printed book, the title page itself,
covered by this License; they are outside its scopeThe act of
plus such following pages as are needed to hold, legibly, the material
running the Program is not restricted, and the output from the Program
this License requires to appear in the title pageFor works in
is covered only if its contents constitute a work based on the
formats which do not have any title page as such, "Title Page" means
Program (independent of having been made by running the Program).
the text near the most prominent appearance of the work's title,
Whether that is true depends on what the Program does.
preceding the beginning of the body of the text.


  1. You may copy and distribute verbatim copies of the Program's
The "publisher" means any person or entity that distributes copies of
source code as you receive it, in any medium, provided that you
the Document to the public.
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.


You may charge a fee for the physical act of transferring a copy, and
A section "Entitled XYZ" means a named subunit of the Document whose
you may at your option offer warranty protection in exchange for a fee.
title either is precisely XYZ or contains XYZ in parentheses following
text that translates XYZ in another language.  (Here XYZ stands for a
specific section name mentioned below, such as "Acknowledgements",
"Dedications", "Endorsements", or "History".)  To "Preserve the Title"
of such a section when you modify the Document means that it remains a
section "Entitled XYZ" according to this definition.


  2. You may modify your copy or copies of the Program or any portion
The Document may include Warranty Disclaimers next to the notice which
of it, thus forming a work based on the Program, and copy and
states that this License applies to the Document.  These Warranty
distribute such modifications or work under the terms of Section 1
Disclaimers are considered to be included by reference in this
above, provided that you also meet all of these conditions:
License, but only as regards disclaiming warranties: any other
implication that these Warranty Disclaimers may have is void and has
no effect on the meaning of this License.


    a) You must cause the modified files to carry prominent notices
2. VERBATIM COPYING
    stating that you changed the files and the date of any change.


    b) You must cause any work that you distribute or publish, that in
You may copy and distribute the Document in any medium, either
    whole or in part contains or is derived from the Program or any
commercially or noncommercially, provided that this License, the
    part thereof, to be licensed as a whole at no charge to all third
copyright notices, and the license notice saying this License applies
    parties under the terms of this License.
to the Document are reproduced in all copies, and that you add no
other conditions whatsoever to those of this License.  You may not use
technical measures to obstruct or control the reading or further
copying of the copies you make or distribute.  However, you may accept
compensation in exchange for copies.  If you distribute a large enough
number of copies you must also follow the conditions in section 3.


    c) If the modified program normally reads commands interactively
You may also lend copies, under the same conditions stated above, and
    when run, you must cause it, when started running for such
you may publicly display copies.
    interactive use in the most ordinary way, to print or display an
    announcement including an appropriate copyright notice and a
    notice that there is no warranty (or else, saying that you provide
    a warranty) and that users may redistribute the program under
    these conditions, and telling the user how to view a copy of this
    License.  (Exception: if the Program itself is interactive but
    does not normally print such an announcement, your work based on
    the Program is not required to print an announcement.)


These requirements apply to the modified work as a whole.  If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works.  But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.


Thus, it is not the intent of this section to claim rights or contest
3. COPYING IN QUANTITY
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.


In addition, mere aggregation of another work not based on the Program
If you publish printed copies (or copies in media that commonly have
with the Program (or with a work based on the Program) on a volume of
printed covers) of the Document, numbering more than 100, and the
a storage or distribution medium does not bring the other work under
Document's license notice requires Cover Texts, you must enclose the
the scope of this License.
copies in covers that carry, clearly and legibly, all these Cover
Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on
the back cover.  Both covers must also clearly and legibly identify
you as the publisher of these copies.  The front cover must present
the full title with all words of the title equally prominent and
visible.  You may add other material on the covers in addition.
Copying with changes limited to the covers, as long as they preserve
the title of the Document and satisfy these conditions, can be treated
as verbatim copying in other respects.


  3. You may copy and distribute the Program (or a work based on it,
If the required texts for either cover are too voluminous to fit
under Section 2) in object code or executable form under the terms of
legibly, you should put the first ones listed (as many as fit
Sections 1 and 2 above provided that you also do one of the following:
reasonably) on the actual cover, and continue the rest onto adjacent
pages.


    a) Accompany it with the complete corresponding machine-readable
If you publish or distribute Opaque copies of the Document numbering
    source code, which must be distributed under the terms of Sections
more than 100, you must either include a machine-readable Transparent
    1 and 2 above on a medium customarily used for software interchange; or,
copy along with each Opaque copy, or state in or with each Opaque copy
a computer-network location from which the general network-using
public has access to download using public-standard network protocols
a complete Transparent copy of the Document, free of added material.
If you use the latter option, you must take reasonably prudent steps,
when you begin distribution of Opaque copies in quantity, to ensure
that this Transparent copy will remain thus accessible at the stated
location until at least one year after the last time you distribute an
Opaque copy (directly or through your agents or retailers) of that
edition to the public.


    b) Accompany it with a written offer, valid for at least three
It is requested, but not required, that you contact the authors of the
    years, to give any third party, for a charge no more than your
Document well before redistributing any large number of copies, to
    cost of physically performing source distribution, a complete
give them a chance to provide you with an updated version of the
    machine-readable copy of the corresponding source code, to be
Document.
    distributed under the terms of Sections 1 and 2 above on a medium
    customarily used for software interchange; or,


    c) Accompany it with the information you received as to the offer
    to distribute corresponding source code.  (This alternative is
    allowed only for noncommercial distribution and only if you
    received the program in object code or executable form with such
    an offer, in accord with Subsection b above.)


The source code for a work means the preferred form of the work for
4. MODIFICATIONS
making modifications to it.  For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable.  However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.


If distribution of executable or object code is made by offering
You may copy and distribute a Modified Version of the Document under
access to copy from a designated place, then offering equivalent
the conditions of sections 2 and 3 above, provided that you release
access to copy the source code from the same place counts as
the Modified Version under precisely this License, with the Modified
distribution of the source code, even though third parties are not
Version filling the role of the Document, thus licensing distribution
compelled to copy the source along with the object code.
and modification of the Modified Version to whoever possesses a copy
of it.  In addition, you must do these things in the Modified Version:


  4. You may not copy, modify, sublicense, or distribute the Program
A. Use in the Title Page (and on the covers, if any) a title distinct
except as expressly provided under this License.  Any attempt
  from that of the Document, and from those of previous versions
otherwise to copy, modify, sublicense or distribute the Program is
  (which should, if there were any, be listed in the History section
void, and will automatically terminate your rights under this License.
  of the Document). You may use the same title as a previous version
However, parties who have received copies, or rights, from you under
  if the original publisher of that version gives permission.
this License will not have their licenses terminated so long as such
B. List on the Title Page, as authors, one or more persons or entities
parties remain in full compliance.
  responsible for authorship of the modifications in the Modified
  Version, together with at least five of the principal authors of the
  Document (all of its principal authors, if it has fewer than five),
  unless they release you from this requirement.
C. State on the Title page the name of the publisher of the
  Modified Version, as the publisher.
D. Preserve all the copyright notices of the Document.
E. Add an appropriate copyright notice for your modifications
  adjacent to the other copyright notices.
F. Include, immediately after the copyright notices, a license notice
  giving the public permission to use the Modified Version under the
  terms of this License, in the form shown in the Addendum below.
G. Preserve in that license notice the full lists of Invariant Sections
  and required Cover Texts given in the Document's license notice.
H. Include an unaltered copy of this License.
I. Preserve the section Entitled "History", Preserve its Title, and add
  to it an item stating at least the title, year, new authors, and
  publisher of the Modified Version as given on the Title PageIf
  there is no section Entitled "History" in the Document, create one
  stating the title, year, authors, and publisher of the Document as
  given on its Title Page, then add an item describing the Modified
  Version as stated in the previous sentence.
J. Preserve the network location, if any, given in the Document for
  public access to a Transparent copy of the Document, and likewise
  the network locations given in the Document for previous versions
  it was based on.  These may be placed in the "History" section.
  You may omit a network location for a work that was published at
  least four years before the Document itself, or if the original
  publisher of the version it refers to gives permission.
K. For any section Entitled "Acknowledgements" or "Dedications",
  Preserve the Title of the section, and preserve in the section all
  the substance and tone of each of the contributor acknowledgements
  and/or dedications given therein.
L. Preserve all the Invariant Sections of the Document,
  unaltered in their text and in their titles.  Section numbers
  or the equivalent are not considered part of the section titles.
M. Delete any section Entitled "Endorsements".  Such a section
  may not be included in the Modified Version.
N. Do not retitle any existing section to be Entitled "Endorsements"
  or to conflict in title with any Invariant Section.
O. Preserve any Warranty Disclaimers.
 
If the Modified Version includes new front-matter sections or
appendices that qualify as Secondary Sections and contain no material
copied from the Document, you may at your option designate some or all
of these sections as invariant.  To do this, add their titles to the
list of Invariant Sections in the Modified Version's license notice.
These titles must be distinct from any other section titles.
 
You may add a section Entitled "Endorsements", provided it contains
nothing but endorsements of your Modified Version by various
parties--for example, statements of peer review or that the text has
been approved by an organization as the authoritative definition of a
standard.
 
You may add a passage of up to five words as a Front-Cover Text, and a
passage of up to 25 words as a Back-Cover Text, to the end of the list
of Cover Texts in the Modified Version.  Only one passage of
Front-Cover Text and one of Back-Cover Text may be added by (or
through arrangements made by) any one entity.  If the Document already
includes a cover text for the same cover, previously added by you or
by arrangement made by the same entity you are acting on behalf of,
you may not add another; but you may replace the old one, on explicit
permission from the previous publisher that added the old one.
 
The author(s) and publisher(s) of the Document do not by this License
give permission to use their names for publicity for or to assert or
imply endorsement of any Modified Version.
 
 
5. COMBINING DOCUMENTS
 
You may combine the Document with other documents released under this
License, under the terms defined in section 4 above for modified
versions, provided that you include in the combination all of the
Invariant Sections of all of the original documents, unmodified, and
list them all as Invariant Sections of your combined work in its
license notice, and that you preserve all their Warranty Disclaimers.
 
The combined work need only contain one copy of this License, and
multiple identical Invariant Sections may be replaced with a single
copy. If there are multiple Invariant Sections with the same name but
different contents, make the title of each such section unique by
adding at the end of it, in parentheses, the name of the original
author or publisher of that section if known, or else a unique number.
Make the same adjustment to the section titles in the list of
Invariant Sections in the license notice of the combined work.
 
In the combination, you must combine any sections Entitled "History"
in the various original documents, forming one section Entitled
"History"; likewise combine any sections Entitled "Acknowledgements",
and any sections Entitled "Dedications".  You must delete all sections
Entitled "Endorsements".
 
 
6. COLLECTIONS OF DOCUMENTS
 
You may make a collection consisting of the Document and other
documents released under this License, and replace the individual
copies of this License in the various documents with a single copy
that is included in the collection, provided that you follow the rules
of this License for verbatim copying of each of the documents in all
other respects.
 
You may extract a single document from such a collection, and
distribute it individually under this License, provided you insert a
copy of this License into the extracted document, and follow this
License in all other respects regarding verbatim copying of that
document.
 
 
7. AGGREGATION WITH INDEPENDENT WORKS


  5. You are not required to accept this License, since you have not
A compilation of the Document or its derivatives with other separate
signed it.  However, nothing else grants you permission to modify or
and independent documents or works, in or on a volume of a storage or
distribute the Program or its derivative works. These actions are
distribution medium, is called an "aggregate" if the copyright
prohibited by law if you do not accept this License.  Therefore, by
resulting from the compilation is not used to limit the legal rights
modifying or distributing the Program (or any work based on the
of the compilation's users beyond what the individual works permit.
Program), you indicate your acceptance of this License to do so, and
When the Document is included in an aggregate, this License does not
all its terms and conditions for copying, distributing or modifying
apply to the other works in the aggregate which are not themselves
the Program or works based on it.
derivative works of the Document.


  6. Each time you redistribute the Program (or any work based on the
If the Cover Text requirement of section 3 is applicable to these
Program), the recipient automatically receives a license from the
copies of the Document, then if the Document is less than one half of
original licensor to copy, distribute or modify the Program subject to
the entire aggregate, the Document's Cover Texts may be placed on
these terms and conditions. You may not impose any further
covers that bracket the Document within the aggregate, or the
restrictions on the recipients' exercise of the rights granted herein.
electronic equivalent of covers if the Document is in electronic form.
You are not responsible for enforcing compliance by third parties to
Otherwise they must appear on printed covers that bracket the whole
this License.
aggregate.


  7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
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
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all.  For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.


If any portion of this section is held invalid or unenforceable under
8. TRANSLATION
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.


It is not the purpose of this section to induce you to infringe any
Translation is considered a kind of modification, so you may
patents or other property right claims or to contest validity of any
distribute translations of the Document under the terms of section 4.
such claims; this section has the sole purpose of protecting the
Replacing Invariant Sections with translations requires special
integrity of the free software distribution system, which is
permission from their copyright holders, but you may include
implemented by public license practicesMany people have made
translations of some or all Invariant Sections in addition to the
generous contributions to the wide range of software distributed
original versions of these Invariant Sections.  You may include a
through that system in reliance on consistent application of that
translation of this License, and all the license notices in the
system; it is up to the author/donor to decide if he or she is willing
Document, and any Warranty Disclaimers, provided that you also include
to distribute software through any other system and a licensee cannot
the original English version of this License and the original versions
impose that choice.
of those notices and disclaimersIn case of a disagreement between
the translation and the original version of this License or a notice
or disclaimer, the original version will prevail.


This section is intended to make thoroughly clear what is believed to
If a section in the Document is Entitled "Acknowledgements",
be a consequence of the rest of this License.
"Dedications", or "History", the requirement (section 4) to Preserve
its Title (section 1) will typically require changing the actual
title.


  8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded.  In such case, this License incorporates
the limitation as if written in the body of this License.


  9. The Free Software Foundation may publish revised and/or new versions
9. TERMINATION
of the 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
You may not copy, modify, sublicense, or distribute the Document
specifies a version number of this License which applies to it and "any
except as expressly provided under this License.  Any attempt
later version", you have the option of following the terms and conditions
otherwise to copy, modify, sublicense, or distribute it is void, and
either of that version or of any later version published by the Free
will automatically terminate your rights under this License.
Software Foundation.  If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.


  10. If you wish to incorporate parts of the Program into other free
However, if you cease all violation of this License, then your license
programs whose distribution conditions are different, write to the author
from a particular copyright holder is reinstated (a) provisionally,
to ask for permission.  For software which is copyrighted by the Free
unless and until the copyright holder explicitly and finally
Software Foundation, write to the Free Software Foundation; we sometimes
terminates your license, and (b) permanently, if the copyright holder
make exceptions for this.  Our decision will be guided by the two goals
fails to notify you of the violation by some reasonable means prior to
of preserving the free status of all derivatives of our free software and
60 days after the cessation.
of promoting the sharing and reuse of software generally.


                            NO WARRANTY
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.


  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
Termination of your rights under this section does not terminate the
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
licenses of parties who have received copies or rights from you under
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
this LicenseIf your rights have been terminated and not permanently
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
reinstated, receipt of a copy of some or all of the same material does
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
not give you any rights to use it.
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOUSHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.


  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE 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.


                    END OF TERMS AND CONDITIONS
10. FUTURE REVISIONS OF THIS LICENSE


            How to Apply These Terms to Your New Programs
The Free Software Foundation may publish new, revised versions of the
GNU Free Documentation 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.  See
http://www.gnu.org/copyleft/.


  If you develop a new program, and you want it to be of the greatest
Each version of the License is given a distinguishing version number.
possible use to the public, the best way to achieve this is to make it
If the Document specifies that a particular numbered version of this
free software which everyone can redistribute and change under these terms.
License "or any later version" applies to it, you have the option of
following the terms and conditions either of that specified version or
of any later version that has been published (not as a draft) by the
Free Software Foundation.  If the Document does not specify a version
number of this License, you may choose any version ever published (not
as a draft) by the Free Software Foundation.  If the Document
specifies that a proxy can decide which future versions of this
License can be used, that proxy's public statement of acceptance of a
version permanently authorizes you to choose that version for the
Document.


  To do so, attach the following notices to the program.  It is safest
11. RELICENSING
to attach them to the start of each source file to most effectively
convey 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.>
"Massive Multiauthor Collaboration Site" (or "MMC Site") means any
    Copyright (C) <year>  <name of author>
World Wide Web server that publishes copyrightable works and also
provides prominent facilities for anybody to edit those works.  A
public wiki that anybody can edit is an example of such a server. A
"Massive Multiauthor Collaboration" (or "MMC") contained in the site
means any set of copyrightable works thus published on the MMC site.


    This program is free software; you can redistribute it and/or modify
"CC-BY-SA" means the Creative Commons Attribution-Share Alike 3.0
    it under the terms of the GNU General Public License as published by
license published by Creative Commons Corporation, a not-for-profit
    the Free Software Foundation; either version 2 of the License, or
corporation with a principal place of business in San Francisco,
    (at your option) any later version.
California, as well as future copyleft versions of that license
published by that same organization.


    This program is distributed in the hope that it will be useful,
"Incorporate" means to publish or republish a Document, in whole or in
    but WITHOUT ANY WARRANTY; without even the implied warranty of
part, as part of another Document.
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.


    You should have received a copy of the GNU General Public License along
An MMC is "eligible for relicensing" if it is licensed under this
    with this program; if not, write to the Free Software Foundation, Inc.,
License, and if all works that were first published under this License  
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
somewhere other than this MMC, and subsequently incorporated in whole or
in part into the MMC, (1) had no cover texts or invariant sections, and
(2) were thus incorporated prior to November 1, 2008.


Also add information on how to contact you by electronic and paper mail.
The operator of an MMC Site may republish an MMC contained in the site
under CC-BY-SA on the same site at any time before August 1, 2009,
provided the MMC is eligible for relicensing.


If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:


    Gnomovision version 69, Copyright (C) year name of author
ADDENDUM: How to use this License for your documents
    Gnomovision 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
To use this License in a document you have written, include a copy of
parts of the General Public License.  Of course, the commands you use may
the License in the document and put the following copyright and
be called something other than `show w' and `show c'; they could even be
license notices just after the title page:
mouse-clicks or menu items--whatever suits your program.


You should also get your employer (if you work as a programmer) or your
    Copyright (c) YEAR  YOUR NAME.
school, if any, to sign a "copyright disclaimer" for the program, if
    Permission is granted to copy, distribute and/or modify this document
necessary.  Here is a sample; alter the names:
    under the terms of the GNU Free Documentation License, Version 1.3
    or any later version published by the Free Software Foundation;
    with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
    A copy of the license is included in the section entitled "GNU
    Free Documentation License".


  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
  `Gnomovision' (which makes passes at compilers) written by James Hacker.
replace the "with...Texts." line with this:


  <signature of Ty Coon>, 1 April 1989
    with the Invariant Sections being LIST THEIR TITLES, with the
  Ty Coon, President of Vice
    Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST.


This General Public License does not permit incorporating your program into
If you have Invariant Sections without Cover Texts, or some other
proprietary programs.  If your program is a subroutine library, you may
combination of the three, merge those two alternatives to suit the
consider it more useful to permit linking proprietary applications with the
situation.
library.  If this is what you want to do, use the GNU Lesser General
Public License instead of this License.


[http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt GPLv2]
If your document contains nontrivial examples of program code, we
recommend releasing these examples in parallel under your choice of
free software license, such as the GNU General Public License,
to permit their use in free software.

Revision as of 06:05, 12 March 2016

               GNU Free Documentation License
                Version 1.3, 3 November 2008


Copyright (C) 2000, 2001, 2002, 2007, 2008 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.

0. PREAMBLE

The purpose of this License is to make a manual, textbook, or other functional and useful document "free" in the sense of freedom: to assure everyone the effective freedom to copy and redistribute it, with or without modifying it, either commercially or noncommercially. Secondarily, this License preserves for the author and publisher a way to get credit for their work, while not being considered responsible for modifications made by others.

This License is a kind of "copyleft", which means that derivative works of the document must themselves be free in the same sense. It complements the GNU General Public License, which is a copyleft license designed for free software.

We have designed this License in order to use it for manuals for free software, because free software needs free documentation: a free program should come with manuals providing the same freedoms that the software does. But this License is not limited to software manuals; it can be used for any textual work, regardless of subject matter or whether it is published as a printed book. We recommend this License principally for works whose purpose is instruction or reference.


1. APPLICABILITY AND DEFINITIONS

This License applies to any manual or other work, in any medium, that contains a notice placed by the copyright holder saying it can be distributed under the terms of this License. Such a notice grants a world-wide, royalty-free license, unlimited in duration, to use that work under the conditions stated herein. The "Document", below, refers to any such manual or work. Any member of the public is a licensee, and is addressed as "you". You accept the license if you copy, modify or distribute the work in a way requiring permission under copyright law.

A "Modified Version" of the Document means any work containing the Document or a portion of it, either copied verbatim, or with modifications and/or translated into another language.

A "Secondary Section" is a named appendix or a front-matter section of the Document that deals exclusively with the relationship of the publishers or authors of the Document to the Document's overall subject (or to related matters) and contains nothing that could fall directly within that overall subject. (Thus, if the Document is in part a textbook of mathematics, a Secondary Section may not explain any mathematics.) The relationship could be a matter of historical connection with the subject or with related matters, or of legal, commercial, philosophical, ethical or political position regarding them.

The "Invariant Sections" are certain Secondary Sections whose titles are designated, as being those of Invariant Sections, in the notice that says that the Document is released under this License. If a section does not fit the above definition of Secondary then it is not allowed to be designated as Invariant. The Document may contain zero Invariant Sections. If the Document does not identify any Invariant Sections then there are none.

The "Cover Texts" are certain short passages of text that are listed, as Front-Cover Texts or Back-Cover Texts, in the notice that says that the Document is released under this License. A Front-Cover Text may be at most 5 words, and a Back-Cover Text may be at most 25 words.

A "Transparent" copy of the Document means a machine-readable copy, represented in a format whose specification is available to the general public, that is suitable for revising the document straightforwardly with generic text editors or (for images composed of pixels) generic paint programs or (for drawings) some widely available drawing editor, and that is suitable for input to text formatters or for automatic translation to a variety of formats suitable for input to text formatters. A copy made in an otherwise Transparent file format whose markup, or absence of markup, has been arranged to thwart or discourage subsequent modification by readers is not Transparent. An image format is not Transparent if used for any substantial amount of text. A copy that is not "Transparent" is called "Opaque".

Examples of suitable formats for Transparent copies include plain ASCII without markup, Texinfo input format, LaTeX input format, SGML or XML using a publicly available DTD, and standard-conforming simple HTML, PostScript or PDF designed for human modification. Examples of transparent image formats include PNG, XCF and JPG. Opaque formats include proprietary formats that can be read and edited only by proprietary word processors, SGML or XML for which the DTD and/or processing tools are not generally available, and the machine-generated HTML, PostScript or PDF produced by some word processors for output purposes only.

The "Title Page" means, for a printed book, the title page itself, plus such following pages as are needed to hold, legibly, the material this License requires to appear in the title page. For works in formats which do not have any title page as such, "Title Page" means the text near the most prominent appearance of the work's title, preceding the beginning of the body of the text.

The "publisher" means any person or entity that distributes copies of the Document to the public.

A section "Entitled XYZ" means a named subunit of the Document whose title either is precisely XYZ or contains XYZ in parentheses following text that translates XYZ in another language. (Here XYZ stands for a specific section name mentioned below, such as "Acknowledgements", "Dedications", "Endorsements", or "History".) To "Preserve the Title" of such a section when you modify the Document means that it remains a section "Entitled XYZ" according to this definition.

The Document may include Warranty Disclaimers next to the notice which states that this License applies to the Document. These Warranty Disclaimers are considered to be included by reference in this License, but only as regards disclaiming warranties: any other implication that these Warranty Disclaimers may have is void and has no effect on the meaning of this License.

2. VERBATIM COPYING

You may copy and distribute the Document in any medium, either commercially or noncommercially, provided that this License, the copyright notices, and the license notice saying this License applies to the Document are reproduced in all copies, and that you add no other conditions whatsoever to those of this License. You may not use technical measures to obstruct or control the reading or further copying of the copies you make or distribute. However, you may accept compensation in exchange for copies. If you distribute a large enough number of copies you must also follow the conditions in section 3.

You may also lend copies, under the same conditions stated above, and you may publicly display copies.


3. COPYING IN QUANTITY

If you publish printed copies (or copies in media that commonly have printed covers) of the Document, numbering more than 100, and the Document's license notice requires Cover Texts, you must enclose the copies in covers that carry, clearly and legibly, all these Cover Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on the back cover. Both covers must also clearly and legibly identify you as the publisher of these copies. The front cover must present the full title with all words of the title equally prominent and visible. You may add other material on the covers in addition. Copying with changes limited to the covers, as long as they preserve the title of the Document and satisfy these conditions, can be treated as verbatim copying in other respects.

If the required texts for either cover are too voluminous to fit legibly, you should put the first ones listed (as many as fit reasonably) on the actual cover, and continue the rest onto adjacent pages.

If you publish or distribute Opaque copies of the Document numbering more than 100, you must either include a machine-readable Transparent copy along with each Opaque copy, or state in or with each Opaque copy a computer-network location from which the general network-using public has access to download using public-standard network protocols a complete Transparent copy of the Document, free of added material. If you use the latter option, you must take reasonably prudent steps, when you begin distribution of Opaque copies in quantity, to ensure that this Transparent copy will remain thus accessible at the stated location until at least one year after the last time you distribute an Opaque copy (directly or through your agents or retailers) of that edition to the public.

It is requested, but not required, that you contact the authors of the Document well before redistributing any large number of copies, to give them a chance to provide you with an updated version of the Document.


4. MODIFICATIONS

You may copy and distribute a Modified Version of the Document under the conditions of sections 2 and 3 above, provided that you release the Modified Version under precisely this License, with the Modified Version filling the role of the Document, thus licensing distribution and modification of the Modified Version to whoever possesses a copy of it. In addition, you must do these things in the Modified Version:

A. Use in the Title Page (and on the covers, if any) a title distinct

  from that of the Document, and from those of previous versions
  (which should, if there were any, be listed in the History section
  of the Document).  You may use the same title as a previous version
  if the original publisher of that version gives permission.

B. List on the Title Page, as authors, one or more persons or entities

  responsible for authorship of the modifications in the Modified
  Version, together with at least five of the principal authors of the
  Document (all of its principal authors, if it has fewer than five),
  unless they release you from this requirement.

C. State on the Title page the name of the publisher of the

  Modified Version, as the publisher.

D. Preserve all the copyright notices of the Document. E. Add an appropriate copyright notice for your modifications

  adjacent to the other copyright notices.

F. Include, immediately after the copyright notices, a license notice

  giving the public permission to use the Modified Version under the
  terms of this License, in the form shown in the Addendum below.

G. Preserve in that license notice the full lists of Invariant Sections

  and required Cover Texts given in the Document's license notice.

H. Include an unaltered copy of this License. I. Preserve the section Entitled "History", Preserve its Title, and add

  to it an item stating at least the title, year, new authors, and
  publisher of the Modified Version as given on the Title Page.  If
  there is no section Entitled "History" in the Document, create one
  stating the title, year, authors, and publisher of the Document as
  given on its Title Page, then add an item describing the Modified
  Version as stated in the previous sentence.

J. Preserve the network location, if any, given in the Document for

  public access to a Transparent copy of the Document, and likewise
  the network locations given in the Document for previous versions
  it was based on.  These may be placed in the "History" section.
  You may omit a network location for a work that was published at
  least four years before the Document itself, or if the original
  publisher of the version it refers to gives permission.

K. For any section Entitled "Acknowledgements" or "Dedications",

  Preserve the Title of the section, and preserve in the section all
  the substance and tone of each of the contributor acknowledgements
  and/or dedications given therein.

L. Preserve all the Invariant Sections of the Document,

  unaltered in their text and in their titles.  Section numbers
  or the equivalent are not considered part of the section titles.

M. Delete any section Entitled "Endorsements". Such a section

  may not be included in the Modified Version.

N. Do not retitle any existing section to be Entitled "Endorsements"

  or to conflict in title with any Invariant Section.

O. Preserve any Warranty Disclaimers.

If the Modified Version includes new front-matter sections or appendices that qualify as Secondary Sections and contain no material copied from the Document, you may at your option designate some or all of these sections as invariant. To do this, add their titles to the list of Invariant Sections in the Modified Version's license notice. These titles must be distinct from any other section titles.

You may add a section Entitled "Endorsements", provided it contains nothing but endorsements of your Modified Version by various parties--for example, statements of peer review or that the text has been approved by an organization as the authoritative definition of a standard.

You may add a passage of up to five words as a Front-Cover Text, and a passage of up to 25 words as a Back-Cover Text, to the end of the list of Cover Texts in the Modified Version. Only one passage of Front-Cover Text and one of Back-Cover Text may be added by (or through arrangements made by) any one entity. If the Document already includes a cover text for the same cover, previously added by you or by arrangement made by the same entity you are acting on behalf of, you may not add another; but you may replace the old one, on explicit permission from the previous publisher that added the old one.

The author(s) and publisher(s) of the Document do not by this License give permission to use their names for publicity for or to assert or imply endorsement of any Modified Version.


5. COMBINING DOCUMENTS

You may combine the Document with other documents released under this License, under the terms defined in section 4 above for modified versions, provided that you include in the combination all of the Invariant Sections of all of the original documents, unmodified, and list them all as Invariant Sections of your combined work in its license notice, and that you preserve all their Warranty Disclaimers.

The combined work need only contain one copy of this License, and multiple identical Invariant Sections may be replaced with a single copy. If there are multiple Invariant Sections with the same name but different contents, make the title of each such section unique by adding at the end of it, in parentheses, the name of the original author or publisher of that section if known, or else a unique number. Make the same adjustment to the section titles in the list of Invariant Sections in the license notice of the combined work.

In the combination, you must combine any sections Entitled "History" in the various original documents, forming one section Entitled "History"; likewise combine any sections Entitled "Acknowledgements", and any sections Entitled "Dedications". You must delete all sections Entitled "Endorsements".


6. COLLECTIONS OF DOCUMENTS

You may make a collection consisting of the Document and other documents released under this License, and replace the individual copies of this License in the various documents with a single copy that is included in the collection, provided that you follow the rules of this License for verbatim copying of each of the documents in all other respects.

You may extract a single document from such a collection, and distribute it individually under this License, provided you insert a copy of this License into the extracted document, and follow this License in all other respects regarding verbatim copying of that document.


7. AGGREGATION WITH INDEPENDENT WORKS

A compilation of the Document or its derivatives with other separate and independent documents or works, in or on a volume of a storage or distribution medium, is called an "aggregate" if the copyright resulting from the compilation is not used to limit the legal rights of the compilation's users beyond what the individual works permit. When the Document is included in an aggregate, this License does not apply to the other works in the aggregate which are not themselves derivative works of the Document.

If the Cover Text requirement of section 3 is applicable to these copies of the Document, then if the Document is less than one half of the entire aggregate, the Document's Cover Texts may be placed on covers that bracket the Document within the aggregate, or the electronic equivalent of covers if the Document is in electronic form. Otherwise they must appear on printed covers that bracket the whole aggregate.


8. TRANSLATION

Translation is considered a kind of modification, so you may distribute translations of the Document under the terms of section 4. Replacing Invariant Sections with translations requires special permission from their copyright holders, but you may include translations of some or all Invariant Sections in addition to the original versions of these Invariant Sections. You may include a translation of this License, and all the license notices in the Document, and any Warranty Disclaimers, provided that you also include the original English version of this License and the original versions of those notices and disclaimers. In case of a disagreement between the translation and the original version of this License or a notice or disclaimer, the original version will prevail.

If a section in the Document is Entitled "Acknowledgements", "Dedications", or "History", the requirement (section 4) to Preserve its Title (section 1) will typically require changing the actual title.


9. TERMINATION

You may not copy, modify, sublicense, or distribute the Document except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense, or distribute it is void, and will automatically terminate your rights under this License.

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, receipt of a copy of some or all of the same material does not give you any rights to use it.


10. FUTURE REVISIONS OF THIS LICENSE

The Free Software Foundation may publish new, revised versions of the GNU Free Documentation 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. See http://www.gnu.org/copyleft/.

Each version of the License is given a distinguishing version number. If the Document specifies that a particular numbered version of this License "or any later version" applies to it, you have the option of following the terms and conditions either of that specified version or of any later version that has been published (not as a draft) by the Free Software Foundation. If the Document does not specify a version number of this License, you may choose any version ever published (not as a draft) by the Free Software Foundation. If the Document specifies that a proxy can decide which future versions of this License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Document.

11. RELICENSING

"Massive Multiauthor Collaboration Site" (or "MMC Site") means any World Wide Web server that publishes copyrightable works and also provides prominent facilities for anybody to edit those works. A public wiki that anybody can edit is an example of such a server. A "Massive Multiauthor Collaboration" (or "MMC") contained in the site means any set of copyrightable works thus published on the MMC site.

"CC-BY-SA" means the Creative Commons Attribution-Share Alike 3.0 license published by Creative Commons Corporation, a not-for-profit corporation with a principal place of business in San Francisco, California, as well as future copyleft versions of that license published by that same organization.

"Incorporate" means to publish or republish a Document, in whole or in part, as part of another Document.

An MMC is "eligible for relicensing" if it is licensed under this License, and if all works that were first published under this License somewhere other than this MMC, and subsequently incorporated in whole or in part into the MMC, (1) had no cover texts or invariant sections, and (2) were thus incorporated prior to November 1, 2008.

The operator of an MMC Site may republish an MMC contained in the site under CC-BY-SA on the same site at any time before August 1, 2009, provided the MMC is eligible for relicensing.


ADDENDUM: How to use this License for your documents

To use this License in a document you have written, include a copy of the License in the document and put the following copyright and license notices just after the title page:

   Copyright (c)  YEAR  YOUR NAME.
   Permission is granted to copy, distribute and/or modify this document
   under the terms of the GNU Free Documentation License, Version 1.3
   or any later version published by the Free Software Foundation;
   with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
   A copy of the license is included in the section entitled "GNU
   Free Documentation License".

If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts, replace the "with...Texts." line with this:

   with the Invariant Sections being LIST THEIR TITLES, with the
   Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST.

If you have Invariant Sections without Cover Texts, or some other combination of the three, merge those two alternatives to suit the situation.

If your document contains nontrivial examples of program code, we recommend releasing these examples in parallel under your choice of free software license, such as the GNU General Public License, to permit their use in free software.