<appendix id="fdl">
	<title>GNU Free Documentation License</title>
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    <title>GNU Free Documentation License</title -->

	<para>Version 1.1, March 2000</para>

	<blockquote>
	    <para>Copyright (C) 2000  Free Software Foundation, Inc. 59 Temple
Place, Suite 330, Boston, MA  02111-1307  USA Everyone is permitted to copy and
distribute verbatim copies of this license document, but changing it is not
allowed.</para>
	</blockquote>

	<sect1 label="0" id="fdl-preamble">
	    <title>PREAMBLE</title>

	    <para>The purpose of this License is to make a manual, textbook, or
other written 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.</para>

	    <para>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.</para>

	    <para>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.</para>
	</sect1>

	<sect1 label="1" id="fdl-applicability">
	    <title>APPLICABILITY AND DEFINITIONS</title>

	    <para>This License applies to any manual or other work that contains
a notice placed by the copyright holder saying it can be distributed under the
terms of this License.  The "Document", below, refers to any such manual or
work.  Any member of the public is a licensee, and is addressed as "you".</para>

	    <para>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.</para>

	    <para>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. (For example, 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.</para>

	    <para>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.</para>

	    <para>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.</para>

	    <para>A "Transparent" copy of the Document means a machine-readable
copy, represented in a format whose specification is available to the general
public, whose contents can be viewed and edited directly and 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 has been designed to thwart or discourage
subsequent modification by readers is not Transparent.  A copy that is not
"Transparent" is called "Opaque".</para>

	    <para>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 designed
for human modification. Opaque formats include PostScript, PDF, 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 produced by some word processors for output purposes
only.</para>

	    <para>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.</para>
	</sect1>

	<sect1 label="2" id="fdl-verbatim">
	    <title>VERBATIM COPYING</title>

	    <para>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.</para>

	    <para>You may also lend copies, under the same conditions stated
above, and you may publicly display copies.</para>
	</sect1>

	<sect1 label="3" id="fdl-copying">
	    <title>COPYING IN QUANTITY</title>

	    <para>If you publish printed copies 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.</para>

	    <para>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.</para>

	    <para>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
publicly-accessible computer-network location containing a complete Transparent
copy of the Document, free of added material, which the general network-using
public has access to download anonymously at no charge using public-standard
network protocols.  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.</para>

	    <para>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.</para>
	</sect1>

	<sect1 label="4" id="fdl-modifications">
	    <title>MODIFICATIONS</title>

	    <para>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:</para>

	    <orderedlist numeration="upperalpha">
		<listitem><para>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.</para>
		</listitem>

		<listitem><para>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 less than five).</para>
		</listitem>

		<listitem><para>State on the Title page the name of the
publisher of the Modified Version, as the publisher.</para>
		</listitem>

		<listitem><para>Preserve all the copyright notices of the
Document.</para>
		</listitem>

		<listitem><para>Add an appropriate copyright notice for your
modifications adjacent to the other copyright notices.</para>
		</listitem>

		<listitem><para>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.</para>
		</listitem>

		<listitem><para>Preserve in that license notice the full lists
of Invariant Sections and required Cover Texts given in the Document's license
notice.</para>
		</listitem>

		<listitem><para>Include an unaltered copy of this
License.</para>
		</listitem>

		<listitem><para>Preserve the section entitled "History", and 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.</para>
		</listitem>

		<listitem><para>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.</para>
		</listitem>

		<listitem><para>In any section entitled "Acknowledgements" or
"Dedications", preserve the section's title, and preserve in the section all the
substance and tone of each of the contributor acknowledgements and/or
dedications given therein.</para>
		</listitem>

		<listitem><para>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.</para>
		</listitem>

		<listitem><para>Delete any section entitled "Endorsements".
Such a section may not be included in the Modified Version.</para>
		</listitem>

		<listitem><para>Do not retitle any existing section as
"Endorsements" or to conflict in title with any Invariant Section.</para>
		</listitem>
	    </orderedlist>
    
	    <para>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.</para>

	    <para>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.</para>

	    <para>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.</para>

	    <para>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.</para>
	</sect1>

	<sect1 label="5" id="fdl-combining">
	    <title>COMBINING DOCUMENTS</title>

	    <para>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.</para>

	    <para>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.</para>

	    <para>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."</para>
	</sect1>

	<sect1 label="6" id="fdl-collections">
	    <title>COLLECTIONS OF DOCUMENTS</title>

	    <para>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.</para>

	    <para>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.</para>
	</sect1>

	<sect1 label="7" id="fdl-aggregation">
	    <title>AGGREGATION WITH INDEPENDENT WORKS</title>
    
	    <para>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, does not as a whole count as a Modified Version of the
Document, provided no compilation copyright is claimed for the compilation.
Such a compilation is called an "aggregate", and this License does not apply to
the other self-contained works thus compiled with the Document, on account of
their being thus compiled, if they are not themselves derivative works of the
Document.</para>

	    <para>If the Cover Text requirement of section 3 is applicable to
these copies of the Document, then if the Document is less than one quarter of
the entire aggregate, the Document's Cover Texts may be placed on covers that
surround only the Document within the aggregate.  Otherwise they must appear on
covers around the whole aggregate.</para>
	</sect1>

	<sect1 label="8" id="fdl-translation">
	    <title>TRANSLATION</title>

	    <para>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 provided that you also include the
original English version of this License.  In case of a disagreement between the
translation and the original English version of this License, the original
English version will prevail.</para>
	</sect1>

	<sect1 label="9" id="fdl-termination">
	    <title>TERMINATION</title>
    
	    <para>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.</para>
	</sect1>

	<sect1 label="10" id="fdl-future">
	    <title>FUTURE REVISIONS OF THIS LICENSE</title>

	    <para>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 <ulink
url="http://www.gnu.org/copyleft/">http://www.gnu.org/copyleft/</ulink>.</para>

	    <para>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.</para>
	</sect1>

	<sect1 label="" id="fdl-howto">
	    <title>How to use this License for your documents</title>

	    <para>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:</para>

	    <blockquote><para>
      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 1.1 or any later version published by the Free Software
Foundation; with the Invariant Sections being LIST THEIR TITLES, with the
Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST. A copy
of the license is included in the section entitled "GNU Free Documentation
License".
</para></blockquote>

	    <para>If you have no Invariant Sections, write "with no Invariant
Sections" instead of saying which ones are invariant.  If you have no
Front-Cover Texts, write "no Front-Cover Texts" instead of "Front-Cover Texts
being LIST"; likewise for Back-Cover Texts.</para>

	    <para>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.</para>
	</sect1>

</appendix>

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