source: debian/copyright @ 60d0582

This package was debianized by Wilmer van der Gaast <lintux@debian.org> on
Mon,  8 Jul 2002 13:17:42 +0200.

The source can be downloaded from http://www.bitlbee.org/

Authors: Wilmer van der Gaast, Sjoerd Hemminga, Jelmer Vernooij,
         Maurits Dijkstra and others.

Mainly Copyright 2002-2004 Wilmer van der Gaast.
Some parts are borrowed from Gaim (version 0.58) <http://gaim.sf.net/>.
For the copyrights on those parts, please read the Gaim source code.

BitlBee License:

============================================================================
  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.

  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.

  You should have received a copy of the GNU General Public License with
  the Debian GNU/Linux distribution in file /usr/share/common-licenses/GPL;
  if not, write to the Free Software Foundation, Inc., 59 Temple Place,
  Suite 330, Boston, MA  02111-1307  USA
============================================================================



Parts of the program (parts of the Jabber module, the XML parser to be more
specific) are licensed under the Mozilla license (version 1.1):

============================================================================
                          MOZILLA PUBLIC LICENSE
                                Version 1.1

                              ---------------

1. Definitions.

     1.0.1. "Commercial Use" means distribution or otherwise making the
     Covered Code available to a third party.

     1.1. "Contributor" means each entity that creates or contributes to
     the creation of Modifications.

     1.2. "Contributor Version" means the combination of the Original
     Code, prior Modifications used by a Contributor, and the Modifications
     made by that particular Contributor.

     1.3. "Covered Code" means the Original Code or Modifications or the
     combination of the Original Code and Modifications, in each case
     including portions thereof.

     1.4. "Electronic Distribution Mechanism" means a mechanism generally
     accepted in the software development community for the electronic
     transfer of data.

     1.5. "Executable" means Covered Code in any form other than Source
     Code.

     1.6. "Initial Developer" means the individual or entity identified
     as the Initial Developer in the Source Code notice required by Exhibit
     A.

     1.7. "Larger Work" means a work which combines Covered Code or
     portions thereof with code not governed by the terms of this License.

     1.8. "License" means this document.

     1.8.1. "Licensable" means having the right to grant, to the maximum
     extent possible, whether at the time of the initial grant or
     subsequently acquired, any and all of the rights conveyed herein.

     1.9. "Modifications" means any addition to or deletion from the
     substance or structure of either the Original Code or any previous
     Modifications. When Covered Code is released as a series of files, a
     Modification is:
          A. Any addition to or deletion from the contents of a file
          containing Original Code or previous Modifications.

          B. Any new file that contains any part of the Original Code or
          previous Modifications.

     1.10. "Original Code" means Source Code of computer software code
     which is described in the Source Code notice required by Exhibit A as
     Original Code, and which, at the time of its release under this
     License is not already Covered Code governed by this License.

     1.10.1. "Patent Claims" means any patent claim(s), now owned or
     hereafter acquired, including without limitation,  method, process,
     and apparatus claims, in any patent Licensable by grantor.

     1.11. "Source Code" means the preferred form of the Covered Code for
     making modifications to it, including all modules it contains, plus
     any associated interface definition files, scripts used to control
     compilation and installation of an Executable, or source code
     differential comparisons against either the Original Code or another
     well known, available Covered Code of the Contributor's choice. The
     Source Code can be in a compressed or archival form, provided the
     appropriate decompression or de-archiving software is widely available
     for no charge.

     1.12. "You" (or "Your")  means an individual or a legal entity
     exercising rights under, and complying with all of the terms of, this
     License or a future version of this License issued under Section 6.1.
     For legal entities, "You" includes any entity which controls, is
     controlled by, or is under common control with You. For purposes of
     this definition, "control" means (a) the power, direct or indirect,
     to cause the direction or management of such entity, whether by
     contract or otherwise, or (b) ownership of more than fifty percent
     (50%) of the outstanding shares or beneficial ownership of such
     entity.

2. Source Code License.

     2.1. The Initial Developer Grant.
     The Initial Developer hereby grants You a world-wide, royalty-free,
     non-exclusive license, subject to third party intellectual property
     claims:
          (a)  under intellectual property rights (other than patent or
          trademark) Licensable by Initial Developer to use, reproduce,
          modify, display, perform, sublicense and distribute the Original
          Code (or portions thereof) with or without Modifications, and/or
          as part of a Larger Work; and

          (b) under Patents Claims infringed by the making, using or
          selling of Original Code, to make, have made, use, practice,
          sell, and offer for sale, and/or otherwise dispose of the
          Original Code (or portions thereof).

          (c) the licenses granted in this Section 2.1(a) and (b) are
          effective on the date Initial Developer first distributes
          Original Code under the terms of this License.

          (d) Notwithstanding Section 2.1(b) above, no patent license is
          granted: 1) for code that You delete from the Original Code; 2)
          separate from the Original Code;  or 3) for infringements caused
          by: i) the modification of the Original Code or ii) the
          combination of the Original Code with other software or devices.

     2.2. Contributor Grant.
     Subject to third party intellectual property claims, each Contributor
     hereby grants You a world-wide, royalty-free, non-exclusive license

          (a)  under intellectual property rights (other than patent or
          trademark) Licensable by Contributor, to use, reproduce, modify,
          display, perform, sublicense and distribute the Modifications
          created by such Contributor (or portions thereof) either on an
          unmodified basis, with other Modifications, as Covered Code
          and/or as part of a Larger Work; and

          (b) under Patent Claims infringed by the making, using, or
          selling of  Modifications made by that Contributor either alone
          and/or in combination with its Contributor Version (or portions
          of such combination), to make, use, sell, offer for sale, have
          made, and/or otherwise dispose of: 1) Modifications made by that
          Contributor (or portions thereof); and 2) the combination of
          Modifications made by that Contributor with its Contributor
          Version (or portions of such combination).

          (c) the licenses granted in Sections 2.2(a) and 2.2(b) are
          effective on the date Contributor first makes Commercial Use of
          the Covered Code.

          (d)    Notwithstanding Section 2.2(b) above, no patent license is
          granted: 1) for any code that Contributor has deleted from the
          Contributor Version; 2)  separate from the Contributor Version;
          3)  for infringements caused by: i) third party modifications of
          Contributor Version or ii)  the combination of Modifications made
          by that Contributor with other software  (except as part of the
          Contributor Version) or other devices; or 4) under Patent Claims
          infringed by Covered Code in the absence of Modifications made by
          that Contributor.

3. Distribution Obligations.

     3.1. Application of License.
     The Modifications which You create or to which You contribute are
     governed by the terms of this License, including without limitation
     Section 2.2. The Source Code version of Covered Code may be
     distributed only under the terms of this License or a future version
     of this License released under Section 6.1, and You must include a
     copy of this License with every copy of the Source Code You
     distribute. You may not offer or impose any terms on any Source Code
     version that alters or restricts the applicable version of this
     License or the recipients' rights hereunder. However, You may include
     an additional document offering the additional rights described in
     Section 3.5.

     3.2. Availability of Source Code.
     Any Modification which You create or to which You contribute must be
     made available in Source Code form under the terms of this License
     either on the same media as an Executable version or via an accepted
     Electronic Distribution Mechanism to anyone to whom you made an
     Executable version available; and if made available via Electronic
     Distribution Mechanism, must remain available for at least twelve (12)
     months after the date it initially became available, or at least six
     (6) months after a subsequent version of that particular Modification
     has been made available to such recipients. You are responsible for
     ensuring that the Source Code version remains available even if the
     Electronic Distribution Mechanism is maintained by a third party.

     3.3. Description of Modifications.
     You must cause all Covered Code to which You contribute to contain a
     file documenting the changes You made to create that Covered Code and
     the date of any change. You must include a prominent statement that
     the Modification is derived, directly or indirectly, from Original
     Code provided by the Initial Developer and including the name of the
     Initial Developer in (a) the Source Code, and (b) in any notice in an
     Executable version or related documentation in which You describe the
     origin or ownership of the Covered Code.

     3.4. Intellectual Property Matters
          (a) Third Party Claims.
          If Contributor has knowledge that a license under a third party's
          intellectual property rights is required to exercise the rights
          granted by such Contributor under Sections 2.1 or 2.2,
          Contributor must include a text file with the Source Code
          distribution titled "LEGAL" which describes the claim and the
          party making the claim in sufficient detail that a recipient will
          know whom to contact. If Contributor obtains such knowledge after
          the Modification is made available as described in Section 3.2,
          Contributor shall promptly modify the LEGAL file in all copies
          Contributor makes available thereafter and shall take other steps
          (such as notifying appropriate mailing lists or newsgroups)
          reasonably calculated to inform those who received the Covered
          Code that new knowledge has been obtained.

          (b) Contributor APIs.
          If Contributor's Modifications include an application programming
          interface and Contributor has knowledge of patent licenses which
          are reasonably necessary to implement that API, Contributor must
          also include this information in the LEGAL file.

               (c)    Representations.
          Contributor represents that, except as disclosed pursuant to
          Section 3.4(a) above, Contributor believes that Contributor's
          Modifications are Contributor's original creation(s) and/or
          Contributor has sufficient rights to grant the rights conveyed by
          this License.

     3.5. Required Notices.
     You must duplicate the notice in Exhibit A in each file of the Source
     Code.  If it is not possible to put such notice in a particular Source
     Code file due to its structure, then You must include such notice in a
     location (such as a relevant directory) where a user would be likely
     to look for such a notice.  If You created one or more Modification(s)
     You may add your name as a Contributor to the notice described in
     Exhibit A.  You must also duplicate this License in any documentation
     for the Source Code where You describe recipients' rights or ownership
     rights relating to Covered Code.  You may choose to offer, and to
     charge a fee for, warranty, support, indemnity or liability
     obligations to one or more recipients of Covered Code. However, You
     may do so only on Your own behalf, and not on behalf of the Initial
     Developer or any Contributor. You must make it absolutely clear than
     any such warranty, support, indemnity or liability obligation is
     offered by You alone, and You hereby agree to indemnify the Initial
     Developer and every Contributor for any liability incurred by the
     Initial Developer or such Contributor as a result of warranty,
     support, indemnity or liability terms You offer.

     3.6. Distribution of Executable Versions.
     You may distribute Covered Code in Executable form only if the
     requirements of Section 3.1-3.5 have been met for that Covered Code,
     and if You include a notice stating that the Source Code version of
     the Covered Code is available under the terms of this License,
     including a description of how and where You have fulfilled the
     obligations of Section 3.2. The notice must be conspicuously included
     in any notice in an Executable version, related documentation or
     collateral in which You describe recipients' rights relating to the
     Covered Code. You may distribute the Executable version of Covered
     Code or ownership rights under a license of Your choice, which may
     contain terms different from this License, provided that You are in
     compliance with the terms of this License and that the license for the
     Executable version does not attempt to limit or alter the recipient's
     rights in the Source Code version from the rights set forth in this
     License. If You distribute the Executable version under a different
     license You must make it absolutely clear that any terms which differ
     from this License are offered by You alone, not by the Initial
     Developer or any Contributor. You hereby agree to indemnify the
     Initial Developer and every Contributor for any liability incurred by
     the Initial Developer or such Contributor as a result of any such
     terms You offer.

     3.7. Larger Works.
     You may create a Larger Work by combining Covered Code with other code
     not governed by the terms of this License and distribute the Larger
     Work as a single product. In such a case, You must make sure the
     requirements of this License are fulfilled for the Covered Code.

4. Inability to Comply Due to Statute or Regulation.

     If it is impossible for You to comply with any of the terms of this
     License with respect to some or all of the Covered Code due to
     statute, judicial order, or regulation then You must: (a) comply with
     the terms of this License to the maximum extent possible; and (b)
     describe the limitations and the code they affect. Such description
     must be included in the LEGAL file described in Section 3.4 and must
     be included with all distributions of the Source Code. Except to the
     extent prohibited by statute or regulation, such description must be
     sufficiently detailed for a recipient of ordinary skill to be able to
     understand it.

5. Application of this License.

     This License applies to code to which the Initial Developer has
     attached the notice in Exhibit A and to related Covered Code.

6. Versions of the License.

     6.1. New Versions.
     Netscape Communications Corporation ("Netscape") may publish revised
     and/or new versions of the License from time to time. Each version
     will be given a distinguishing version number.

     6.2. Effect of New Versions.
     Once Covered Code has been published under a particular version of the
     License, You may always continue to use it under the terms of that
     version. You may also choose to use such Covered Code under the terms
     of any subsequent version of the License published by Netscape. No one
     other than Netscape has the right to modify the terms applicable to
     Covered Code created under this License.

     6.3. Derivative Works.
     If You create or use a modified version of this License (which you may
     only do in order to apply it to code which is not already Covered Code
     governed by this License), You must (a) rename Your license so that
     the phrases "Mozilla", "MOZILLAPL", "MOZPL", "Netscape",
     "MPL", "NPL" or any confusingly similar phrase do not appear in your
     license (except to note that your license differs from this License)
     and (b) otherwise make it clear that Your version of the license
     contains terms which differ from the Mozilla Public License and
     Netscape Public License. (Filling in the name of the Initial
     Developer, Original Code or Contributor in the notice described in
     Exhibit A shall not of themselves be deemed to be modifications of
     this License.)

7. DISCLAIMER OF WARRANTY.

     COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS,
     WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
     WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS FREE OF
     DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING.
     THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE
     IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT,
     YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE
     COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER
     OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF
     ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER.

8. TERMINATION.

     8.1.  This License and the rights granted hereunder will terminate
     automatically if You fail to comply with terms herein and fail to cure
     such breach within 30 days of becoming aware of the breach. All
     sublicenses to the Covered Code which are properly granted shall
     survive any termination of this License. Provisions which, by their
     nature, must remain in effect beyond the termination of this License
     shall survive.

     8.2.  If You initiate litigation by asserting a patent infringement
     claim (excluding declatory judgment actions) against Initial Developer
     or a Contributor (the Initial Developer or Contributor against whom
     You file such action is referred to as "Participant")  alleging that:

     (a)  such Participant's Contributor Version directly or indirectly
     infringes any patent, then any and all rights granted by such
     Participant to You under Sections 2.1 and/or 2.2 of this License
     shall, upon 60 days notice from Participant terminate prospectively,
     unless if within 60 days after receipt of notice You either: (i)
     agree in writing to pay Participant a mutually agreeable reasonable
     royalty for Your past and future use of Modifications made by such
     Participant, or (ii) withdraw Your litigation claim with respect to
     the Contributor Version against such Participant.  If within 60 days
     of notice, a reasonable royalty and payment arrangement are not
     mutually agreed upon in writing by the parties or the litigation claim
     is not withdrawn, the rights granted by Participant to You under
     Sections 2.1 and/or 2.2 automatically terminate at the expiration of
     the 60 day notice period specified above.

     (b)  any software, hardware, or device, other than such Participant's
     Contributor Version, directly or indirectly infringes any patent, then
     any rights granted to You by such Participant under Sections 2.1(b)
     and 2.2(b) are revoked effective as of the date You first made, used,
     sold, distributed, or had made, Modifications made by that
     Participant.

     8.3.  If You assert a patent infringement claim against Participant
     alleging that such Participant's Contributor Version directly or
     indirectly infringes any patent where such claim is resolved (such as
     by license or settlement) prior to the initiation of patent
     infringement litigation, then the reasonable value of the licenses
     granted by such Participant under Sections 2.1 or 2.2 shall be taken
     into account in determining the amount or value of any payment or
     license.

     8.4.  In the event of termination under Sections 8.1 or 8.2 above,
     all end user license agreements (excluding distributors and resellers)
     which have been validly granted by You or any distributor hereunder
     prior to termination shall survive termination.

9. LIMITATION OF LIABILITY.

     UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT
     (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL
     DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE,
     OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR
     ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY
     CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL,
     WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR ANY AND ALL OTHER
     COMMERCIAL DAMAGES OR LOSSES, EVEN IF SUCH PARTY SHALL HAVE BEEN
     INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF
     LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY
     RESULTING FROM SUCH PARTY'S NEGLIGENCE TO THE EXTENT APPLICABLE LAW
     PROHIBITS SUCH LIMITATION. SOME JURISDICTIONS DO NOT ALLOW THE
     EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO
     THIS EXCLUSION AND LIMITATION MAY NOT APPLY TO YOU.

10. U.S. GOVERNMENT END USERS.

     The Covered Code is a "commercial item," as that term is defined in
     48 C.F.R. 2.101 (Oct. 1995), consisting of "commercial computer
     software" and "commercial computer software documentation," as such
     terms are used in 48 C.F.R. 12.212 (Sept. 1995). Consistent with 48
     C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (June 1995),
     all U.S. Government End Users acquire Covered Code with only those
     rights set forth herein.

11. MISCELLANEOUS.

     This License represents the complete agreement concerning subject
     matter hereof. If any provision of this License is held to be
     unenforceable, such provision shall be reformed only to the extent
     necessary to make it enforceable. This License shall be governed by
     California law provisions (except to the extent applicable law, if
     any, provides otherwise), excluding its conflict-of-law provisions.
     With respect to disputes in which at least one party is a citizen of,
     or an entity chartered or registered to do business in the United
     States of America, any litigation relating to this License shall be
     subject to the jurisdiction of the Federal Courts of the Northern
     District of California, with venue lying in Santa Clara County,
     California, with the losing party responsible for costs, including
     without limitation, court costs and reasonable attorneys' fees and
     expenses. The application of the United Nations Convention on
     Contracts for the International Sale of Goods is expressly excluded.
     Any law or regulation which provides that the language of a contract
     shall be construed against the drafter shall not apply to this
     License.

12. RESPONSIBILITY FOR CLAIMS.

     As between Initial Developer and the Contributors, each party is
     responsible for claims and damages arising, directly or indirectly,
     out of its utilization of rights under this License and You agree to
     work with Initial Developer and Contributors to distribute such
     responsibility on an equitable basis. Nothing herein is intended or
     shall be deemed to constitute any admission of liability.

13. MULTIPLE-LICENSED CODE.

     Initial Developer may designate portions of the Covered Code as
     "Multiple-Licensed".  "Multiple-Licensed" means that the Initial
     Developer permits you to utilize portions of the Covered Code under
     Your choice of the NPL or the alternative licenses, if any, specified
     by the Initial Developer in the file described in Exhibit A.

EXHIBIT A -Mozilla Public License.

     ``The contents of this file are subject to the Mozilla Public License
     Version 1.1 (the "License"); you may not use this file except in
     compliance with the License. You may obtain a copy of the License at
     http://www.mozilla.org/MPL/

     Software distributed under the License is distributed on an "AS IS"
     basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
     License for the specific language governing rights and limitations
     under the License.

     The Original Code is ______________________________________.

     The Initial Developer of the Original Code is ________________________.
     Portions created by ______________________ are Copyright (C) ______
     _______________________. All Rights Reserved.

     Contributor(s): ______________________________________.

     Alternatively, the contents of this file may be used under the terms
     of the _____ license (the  "[___] License"), in which case the
     provisions of [______] License are applicable instead of those
     above.  If you wish to allow use of your version of this file only
     under the terms of the [____] License and not to allow others to use
     your version of this file under the MPL, indicate your decision by
     deleting  the provisions above and replace  them with the notice and
     other provisions required by the [___] License.  If you do not delete
     the provisions above, a recipient may use your version of this file
     under either the MPL or the [___] License."

     [NOTE: The text of this Exhibit A may differ slightly from the text of
     the notices in the Source Code files of the Original Code. You should
     use the text of this Exhibit A rather than the text found in the
     Original Code Source Code for Your Modifications.]
============================================================================



The MD5 generator used for authentication in some modules is written by
Aladdin Enterprises:

============================================================================
  Copyright (C) 1999 Aladdin Enterprises.  All rights reserved.

  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages
  arising from the use of this software.

  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.
============================================================================



The SGML-formatted documentation is written by Jelmer Vernooij
<jelmer@nl.linux.org> under the GNU Free Documentation License:

============================================================================
                GNU Free Documentation License
                   Version 1.1, March 2000

 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.


0. 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.


1. 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 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.

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.

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".

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.

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.


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 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 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.

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 less than five).
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", 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.
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. 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.
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 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.


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.

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, 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.


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 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.


9. 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.


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.


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.
============================================================================