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+<TITLE>A. GNU Free Documentation License</TITLE>
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-<!--Table of Child-Links-->
-<A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></A>
-
-<UL CLASS="ChildLinks">
-<LI><A NAME="tex2html169"
- HREF="node7.html#SECTION00071000000000000000">Appendix: How to Apply These Terms to Your New Programs</A>
-</UL>
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-<HR>
<H1><A NAME="SECTION00070000000000000000">
-A. The GNU General Public License</A>
+A. GNU Free Documentation License</A>
</H1>
<P>
<DIV ALIGN="CENTER">
</DIV>
<P>
-<DIV ALIGN="CENTER">Version 2, June 1991
+<DIV ALIGN="CENTER">Version 1.2, November 2002
</DIV>
<P>
-<DIV ALIGN="CENTER">Copyright © 1989, 1991 Free Software Foundation, Inc.
+<DIV ALIGN="CENTER">Copyright © 2000,2001,2002 Free Software Foundation, Inc.
</DIV>
<P>
<DIV ALIGN="CENTER"></DIV>
<BR>
<DIV ALIGN="CENTER"></DIV>
<P>
-<DIV ALIGN="CENTER">59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+<DIV ALIGN="CENTER">51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
</DIV>
<P>
<DIV ALIGN="CENTER"></DIV>
<DIV ALIGN="CENTER"></DIV>
<P>
<DIV ALIGN="CENTER">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.
</DIV>
</DIV>
<P>
-The licenses for most software are designed to take away your freedom to
-share and change it. By contrast, the GNU General Public License is
-intended to guarantee your freedom to share and change free software--to
-make sure the software is free for all its users. This General Public
-License applies to most of the Free Software Foundation's software and to
-any other program whose authors commit to using it. (Some other Free
-Software Foundation software is covered by the GNU Library General Public
-License instead.) You can apply it to your programs, too.
+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.
<P>
-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.
+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.
<P>
-To protect your rights, we need to make restrictions that forbid 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.
+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.
<P>
-For example, if you distribute copies of such a program, whether gratis or
-for a fee, you must give the recipients all the rights that you have. 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.
+<DIV ALIGN="CENTER">
+<BIG CLASS="LARGE"><B>1. APPLICABILITY AND DEFINITIONS</B></BIG></DIV>
+<P>
+<DIV ALIGN="CENTER">
+
+</DIV>
<P>
-We protect your rights with two steps: (1) copyright the software, and (2)
-offer you this license which gives you legal permission to copy,
-distribute and/or modify the software.
+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 ``<SPAN CLASS="textbf">Document</SPAN>'', below,
+refers to any such manual or work. Any member of the public is a
+licensee, and is addressed as ``<SPAN CLASS="textbf">you</SPAN>''. You accept the license if you
+copy, modify or distribute the work in a way requiring permission
+under copyright law.
+
+<P>
+A ``<SPAN CLASS="textbf">Modified Version</SPAN>'' 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.
+
+<P>
+A ``<SPAN CLASS="textbf">Secondary Section</SPAN>'' 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.
+
+<P>
+The ``<SPAN CLASS="textbf">Invariant Sections</SPAN>'' 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.
+
+<P>
+The ``<SPAN CLASS="textbf">Cover Texts</SPAN>'' 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.
+
+<P>
+A ``<SPAN CLASS="textbf">Transparent</SPAN>'' 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 ``<SPAN CLASS="textbf">Opaque</SPAN>''.
+
+<P>
+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.
+
+<P>
+The ``<SPAN CLASS="textbf">Title Page</SPAN>'' 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.
+
+<P>
+A section ``<SPAN CLASS="textbf">Entitled XYZ</SPAN>'' 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 ``<SPAN CLASS="textbf">Acknowledgements</SPAN>'',
+``<SPAN CLASS="textbf">Dedications</SPAN>'', ``<SPAN CLASS="textbf">Endorsements</SPAN>'', or ``<SPAN CLASS="textbf">History</SPAN>''.)
+To ``<SPAN CLASS="textbf">Preserve the Title</SPAN>''
+of such a section when you modify the Document means that it remains a
+section ``Entitled XYZ'' according to this definition.
+
+<P>
+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.
<P>
-Also, for each author's protection and ours, we want to make certain that
-everyone understands that there is no warranty for this free software. If
-the software is modified by someone else and passed on, we want its
-recipients to know that what they have is not the original, so that any
-problems introduced by others will not reflect on the original authors'
-reputations.
+<DIV ALIGN="CENTER">
+<BIG CLASS="LARGE"><B>2. VERBATIM COPYING</B></BIG></DIV>
+<P>
+<DIV ALIGN="CENTER">
+
+</DIV>
<P>
-Finally, any free program is threatened constantly by software patents.
-We wish to avoid the danger that redistributors of a free program will
-individually obtain patent licenses, in effect making the program
-proprietary. To prevent this, we have made it clear that any patent must
-be licensed for everyone's free use or not licensed at all.
+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.
<P>
-The precise terms and conditions for copying, distribution and
-modification follow.
+You may also lend copies, under the same conditions stated above, and
+you may publicly display copies.
<P>
<DIV ALIGN="CENTER">
-<BIG CLASS="XLARGE">T<SMALL>ERMS AND </SMALL>C<SMALL>ONDITIONS </SMALL>F<SMALL>OR </SMALL>C<SMALL>OPYING, </SMALL>D<SMALL>ISTRIBUTION AND
- </SMALL>M<SMALL>ODIFICATION</SMALL></BIG>
+<BIG CLASS="LARGE"><B>3. COPYING IN QUANTITY</B></BIG></DIV>
+<P>
+<DIV ALIGN="CENTER">
</DIV>
<P>
+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.
-<OL>
-<LI><P>
-This License applies to any program or other work which contains a notice
-placed by the copyright holder saying it may be distributed under the
-terms of this General Public License. The ``Program'', below, refers to
-any such program or work, and a ``work based on the Program'' means either
-the Program or any derivative work under copyright law: that is to say, a
-work containing the Program or a portion of it, either verbatim or with
-modifications and/or translated into another language. (Hereinafter,
-translation is included without limitation in the term ``modification''.)
-Each licensee is addressed as ``you''.
+<P>
+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.
+
+<P>
+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.
<P>
-Activities other than copying, distribution and modification are not
-covered by this License; they are outside its scope. The act of
-running the Program is not restricted, and the output from the Program
-is covered only if its contents constitute a work based on the
-Program (independent of having been made by running the Program).
-Whether that is true depends on what the Program does.
+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.
<P>
-</LI>
-<LI>You may copy and distribute 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
- 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.
+<DIV ALIGN="CENTER">
+<BIG CLASS="LARGE"><B>4. MODIFICATIONS</B></BIG></DIV>
+<P>
+<DIV ALIGN="CENTER">
+
+</DIV>
<P>
-You may charge a fee for the physical act of transferring a copy, and you
-may at your option offer warranty protection in exchange for a fee.
+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:
<P>
-</LI>
-<LI><P>
-You may modify your copy or copies of the Program or any portion
-of it, thus forming a work based on the Program, and copy and
-distribute such modifications or work under the terms of Section 1
-above, provided that you also meet all of these conditions:
+<DL COMPACT>
+<DT>A.</DT>
+<DD>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.
<P>
+</DD>
+<DT>B.</DT>
+<DD>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.
-<OL>
-<LI><P>
-You must cause the modified files to carry prominent notices stating that
-you changed the files and the date of any change.
+<P>
+</DD>
+<DT>C.</DT>
+<DD>State on the Title page the name of the publisher of the
+ Modified Version, as the publisher.
<P>
-</LI>
-<LI><P>
-You must cause any work that you distribute or publish, that in
-whole or in part contains or is derived from the Program or any
-part thereof, to be licensed as a whole at no charge to all third
-parties under the terms of this License.
+</DD>
+<DT>D.</DT>
+<DD>Preserve all the copyright notices of the Document.
<P>
-</LI>
-<LI>If the modified program normally reads commands interactively
-when run, you must cause it, when started running for such
-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.)
+</DD>
+<DT>E.</DT>
+<DD>Add an appropriate copyright notice for your modifications
+ adjacent to the other copyright notices.
<P>
-</LI>
-</OL>
+</DD>
+<DT>F.</DT>
+<DD>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.
<P>
-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.
+</DD>
+<DT>G.</DT>
+<DD>Preserve in that license notice the full lists of Invariant Sections
+ and required Cover Texts given in the Document's license notice.
<P>
-Thus, it is not the intent of this section to claim rights or contest
-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.
+</DD>
+<DT>H.</DT>
+<DD>Include an unaltered copy of this License.
<P>
-In addition, mere aggregation of another work not based on the Program
-with the Program (or with a work based on the Program) on a volume of
-a storage or distribution medium does not bring the other work under
-the scope of this License.
+</DD>
+<DT>I.</DT>
+<DD>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.
<P>
-</LI>
-<LI>You may copy and distribute the Program (or a work based on it,
-under Section 2) in object code or executable form under the terms of
-Sections 1 and 2 above provided that you also do one of the following:
+</DD>
+<DT>J.</DT>
+<DD>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.
<P>
+</DD>
+<DT>K.</DT>
+<DD>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.
-<OL>
-<LI><P>
-Accompany it with the complete corresponding machine-readable
-source code, which must be distributed under the terms of Sections
-1 and 2 above on a medium customarily used for software interchange; or,
+<P>
+</DD>
+<DT>L.</DT>
+<DD>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.
<P>
-</LI>
-<LI><P>
-Accompany it with a written offer, valid for at least three
-years, to give any third party, for a charge no more than your
-cost of physically performing source distribution, a complete
-machine-readable copy of the corresponding source code, to be
-distributed under the terms of Sections 1 and 2 above on a medium
-customarily used for software interchange; or,
+</DD>
+<DT>M.</DT>
+<DD>Delete any section Entitled ``Endorsements''. Such a section
+ may not be included in the Modified Version.
<P>
-</LI>
-<LI><P>
-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.)
+</DD>
+<DT>N.</DT>
+<DD>Do not retitle any existing section to be Entitled ``Endorsements''
+ or to conflict in title with any Invariant Section.
<P>
-</LI>
-</OL>
+</DD>
+<DT>O.</DT>
+<DD>Preserve any Warranty Disclaimers.
+</DD>
+</DL>
<P>
-The source code for a work means the preferred form of the work for
-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 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.
<P>
-If distribution of executable or object code is made by offering
-access to copy from a designated place, then offering equivalent
-access to copy the source code from the same place counts as
-distribution of the source code, even though third parties are not
-compelled to copy the source along with the object code.
+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.
<P>
-</LI>
-<LI>You may not copy, modify, sublicense, or distribute the Program
-except as expressly provided under this License. Any attempt
-otherwise to copy, modify, sublicense or distribute the Program is
-void, and will automatically terminate your rights under this License.
-However, parties who have received copies, or rights, from you under
-this License will not have their licenses terminated so long as such
-parties remain in full compliance.
+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.
<P>
-</LI>
-<LI>You are not required to accept this License, since you have not
-signed it. However, nothing else grants you permission to modify or
-distribute the Program or its derivative works. These actions are
-prohibited by law if you do not accept this License. Therefore, by
-modifying or distributing the Program (or any work based on the
-Program), you indicate your acceptance of this License to do so, and
-all its terms and conditions for copying, distributing or modifying
-the Program or works based on it.
-
-<P>
-</LI>
-<LI>Each time you redistribute the Program (or any work based on the
-Program), the recipient automatically receives a license from the
-original licensor to copy, distribute or modify the Program subject to
-these terms and conditions. You may not impose any further
-restrictions on the recipients' exercise of the rights granted herein.
-You are not responsible for enforcing compliance by third parties to
-this License.
-
-<P>
-</LI>
-<LI>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.
-
-<P>
-If any portion of this section is held invalid or unenforceable under
-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.
-
-<P>
-It is not the purpose of this section to induce you to infringe any
-patents or other property right claims or to contest validity of any
-such claims; this section has the sole purpose of protecting the
-integrity of the free software distribution system, which is
-implemented by public license practices. Many people have made
-generous contributions to the wide range of software distributed
-through that system in reliance on consistent application of that
-system; it is up to the author/donor to decide if he or she is willing
-to distribute software through any other system and a licensee cannot
-impose that choice.
-
-<P>
-This section is intended to make thoroughly clear what is believed to
-be a consequence of the rest of this License.
-
-<P>
-</LI>
-<LI>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.
-
-<P>
-</LI>
-<LI>The Free Software Foundation may publish revised and/or new versions
-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.
-
-<P>
-Each version is given a distinguishing version number. If the Program
-specifies a version number of this License which applies to it and ``any
-later version'', you have the option of following the terms and conditions
-either of that version or of any later version published by the Free
-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.
-
-<P>
-</LI>
-<LI>If you wish to incorporate parts of the Program into other free
-programs whose distribution conditions are different, write to the author
-to ask for permission. For software which is copyrighted by the Free
-Software Foundation, write to the Free Software Foundation; we sometimes
-make exceptions for this. Our decision will be guided by the two goals
-of preserving the free status of all derivatives of our free software and
-of promoting the sharing and reuse of software generally.
+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.
<P>
<DIV ALIGN="CENTER">
-<BIG CLASS="XLARGE">
-N<SMALL>O </SMALL>W<SMALL>ARRANTY
-</SMALL></BIG>
+<BIG CLASS="LARGE"><B>5. COMBINING DOCUMENTS</B></BIG></DIV>
+<P>
+<DIV ALIGN="CENTER">
</DIV>
<P>
-</LI>
-<LI>B<SMALL>ECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
-FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. </SMALL>E<SMALL>XCEPT 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. </SMALL>T<SMALL>HE ENTIRE RISK AS
-TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. </SMALL>S<SMALL>HOULD THE
-PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
-REPAIR OR CORRECTION.</SMALL>
+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.
<P>
-</LI>
-<LI>I<SMALL>N 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.</SMALL>
+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.
<P>
-</LI>
-</OL>
+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''.
<P>
<DIV ALIGN="CENTER">
-<BIG CLASS="XLARGE">E<SMALL>ND OF </SMALL>T<SMALL>ERMS AND </SMALL>C<SMALL>ONDITIONS</SMALL></BIG>
+<BIG CLASS="LARGE"><B>6. COLLECTIONS OF DOCUMENTS</B></BIG></DIV>
+<P>
+<DIV ALIGN="CENTER">
</DIV>
<P>
+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.
+
+<P>
+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.
<P>
+<DIV ALIGN="CENTER">
+<BIG CLASS="LARGE"><B>7. AGGREGATION WITH INDEPENDENT WORKS</B></BIG></DIV>
+<P>
+<DIV ALIGN="CENTER">
-<H2><A NAME="SECTION00071000000000000000">
-Appendix: How to Apply These Terms to Your New Programs</A>
-</H2>
+</DIV>
<P>
-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.
+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.
<P>
-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 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.
+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.
<P>
-<BLOCKQUOTE>
-one line to give the program's name and a brief idea of what it does.
-<BR>
-Copyright (C) yyyy name of author
-<BR></BLOCKQUOTE>
+<DIV ALIGN="CENTER">
+<BIG CLASS="LARGE"><B>8. TRANSLATION</B></BIG></DIV>
<P>
-<BLOCKQUOTE>This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-</BLOCKQUOTE>
+<DIV ALIGN="CENTER">
+
+</DIV>
+
<P>
-<BLOCKQUOTE>This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-</BLOCKQUOTE>
+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.
+
<P>
-<BLOCKQUOTE>You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+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.
-</BLOCKQUOTE>
+<P>
+<DIV ALIGN="CENTER">
+<BIG CLASS="LARGE"><B>9. TERMINATION</B></BIG></DIV>
+<P>
+<DIV ALIGN="CENTER">
+
+</DIV>
<P>
-Also add information on how to contact you by electronic and paper mail.
+You may not copy, modify, sublicense, or distribute the Document except
+as expressly provided for under this License. Any other attempt to
+copy, modify, sublicense or distribute the Document is void, and will
+automatically terminate your rights under this License. However,
+parties who have received copies, or rights, from you under this
+License will not have their licenses terminated so long as such
+parties remain in full compliance.
<P>
-If the program is interactive, make it output a short notice like this
-when it starts in an interactive mode:
+<DIV ALIGN="CENTER">
+<BIG CLASS="LARGE"><B>10. FUTURE REVISIONS OF THIS LICENSE</B></BIG></DIV>
+<P>
+<DIV ALIGN="CENTER">
+
+</DIV>
<P>
-<BLOCKQUOTE>
-Gnomovision version 69, Copyright (C) yyyy name of author
-<BR>
-Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-<BR>
-This is free software, and you are welcome to redistribute it
-under certain conditions; type `show c' for details.
+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/.
-</BLOCKQUOTE>
+<P>
+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.
<P>
-The hypothetical commands <TT>show w</TT> and <TT>show c</TT> should show the
-appropriate parts of the General Public License. Of course, the commands
-you use may be called something other than <TT>show w</TT> and <TT>show c</TT>;
-they could even be mouse-clicks or menu items--whatever suits your
-program.
+<DIV ALIGN="CENTER">
+<BIG CLASS="LARGE"><B>ADDENDUM: How to use this License for your documents</B></BIG></DIV>
+<P>
+<DIV ALIGN="CENTER">
+
+</DIV>
<P>
-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a ``copyright disclaimer'' for the program, if
-necessary. Here is a sample; alter the names:
+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:
<P>
+
+<P><P>
+<BR>
<BLOCKQUOTE>
-Yoyodyne, Inc., hereby disclaims all copyright interest in the program
-<BR>`Gnomovision' (which makes passes at compilers) written by James Hacker.
-<BR></BLOCKQUOTE>
+Copyright © YEAR YOUR NAME.
+ Permission is granted to copy, distribute and/or modify this document
+ under the terms of the GNU Free Documentation License, Version 1.2
+ 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''.
+
+</BLOCKQUOTE>
+
+<P><P>
+<BR>
+
<P>
-<BLOCKQUOTE>signature of Ty Coon, 1 April 1989
+If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
+replace the ``with ... Texts.'' line with this:
+
+<P>
+
+<P><P>
<BR>
-Ty Coon, President of Vice
+<BLOCKQUOTE>
+with the Invariant Sections being LIST THEIR TITLES, with the
+ Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST.
</BLOCKQUOTE>
+<P><P>
+<BR>
+
+<P>
+If you have Invariant Sections without Cover Texts, or some other
+combination of the three, merge those two alternatives to suit the
+situation.
+
<P>
-This General Public License does not permit incorporating your program
-into proprietary programs. If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications
-with the library. If this is what you want to do, use the GNU Library
-General Public License instead of this License.
+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.
<P>
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