
    Copyright (C) 2000 Free Software Foundation, Inc. 51
      Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
    Everyone is permitted to copy and distribute verbatim copies
      of this license document, but changing it is not allowed.
    ><%i:t]+4[y/
        PREAMBLE
        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.
        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.
      n
        APPLICABILITY AND DEFINITIONS
        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".
        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
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          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
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          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.
        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.
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        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
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          work's title, preceding the beginning of the body of the text.
      7#3^7 #}Y}1IVtR4sD
        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
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          use technical measures to obstruct or control the reading or further
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          compensation in exchange for copies. If you distribute a large enough
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        You may also lend copies, under the same conditions
          stated above, and you may publicly display copies.
      qAM5
        COPYING IN QUANTITY
        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
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        If the required texts for either cover are too
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          cover, and continue the rest onto adjacent pages.
        If you publish or distribute Opaque copies of the Document
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        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.
      2>}
        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:
        KeR'rQ{tZT8E+J
            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 less than five).
          
            State on the Title page the name of the publisher
            of the Modified Version, as the publisher.
          [xy`8Q8lkwGj7t
            Preserve all the copyright notices of the Document.
          D:tD<*N
            Add an appropriate copyright notice for your
            modifications adjacent to the other copyright notices.
          ,SST|\=!
            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.
          $Eqz@bq<Ziq-MI'>
            Preserve in that license notice the full lists of Invariant Sections
            and required Cover Texts given in the Document's license notice.
          ]t
            Include an unaltered copy of this License.
          !3/P=Nwgi(2$x
!z{
            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.
          q2n,;!-M<1K
            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.
          C}u()^$V@qTGw0@@ tl
            In any section entitled "Acknowledgements" or "Dedications",
            preserve the section's title, and preserve in the section
            all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
          =0
            Preserve all the Invariant Sections of the Document, unaltered
            in their text and in their titles. Section numbers or the
            equivalent are not considered part of the section titles.
          Hd lYn7wk qm3,.E@,9
            Delete any section entitled "Endorsements". Such a
            section may not be included in the Modified Version.
          =Oqz@.*$d<B//tjV2+
            Do not retitle any existing section as "Endorsements"
            or to conflict in title with any Invariant Section.
        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.
      b"3
        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.
        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."
      
        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.
      1.k4zvp>	^!4wY)4mH
        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, 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.
        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.
      L7>:tc\k(Z%9R8B^
        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 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.
      "k0(n))$"q
        TERMINATION
        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.
      n+t.w
        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.
    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 1.1 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".
      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.
      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.