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     1 Oracle elects to use only the GNU Lesser General Public License version
       
     2 2.1 (LGPL)/GNU General Public License version 2 (GPL) for any software
       
     3 where a choice of LGPL/GPL license versions are made available with the
       
     4 language indicating that LGPLv2.1/GPLv2 or any later version may be
       
     5 used, or where a choice of which version of the LGPL/GPL is applied is
       
     6 unspecified.  Unless specifically stated otherwise, where a choice
       
     7 exists between another license and either the GPL or the LGPL, Oracle
       
     8 chooses the other license.
       
     9 --------------------------------------------------------------------------
       
    10 For the avoidance of doubt, except that if any license choice other than
       
    11 GPL or LGPL is available it will apply instead, Oracle elects to use
       
    12 only the General Public License version 3 (GPLv3) at this time for any
       
    13 software where a choice of GPL license versions is made available with
       
    14 the language indicating that GPLv3 or any later version may be used.
       
    15 --------------------------------------------------------------------------
       
    16 
       
    17 		  GNU LESSER GENERAL PUBLIC LICENSE
       
    18 		       Version 2.1, February 1999
       
    19 
       
    20  Copyright (C) 1991, 1999 Free Software Foundation, Inc.
       
    21      51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
       
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    25 [This is the first released version of the Lesser GPL.  It also counts
       
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    27  the version number 2.1.]
       
    28 
       
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   348 
       
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   475 
       
   476            How to Apply These Terms to Your New Libraries
       
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   482 ordinary General Public License).
       
   483 
       
   484   To apply these terms, attach the following notices to the library.  It is
       
   485 safest to attach them to the start of each source file to most effectively
       
   486 convey the exclusion of warranty; and each file should have at least the
       
   487 "copyright" line and a pointer to where the full notice is found.
       
   488 
       
   489     <one line to give the library's name and a brief idea of what it does.>
       
   490     Copyright (C) <year>  <name of author>
       
   491 
       
   492     This library is free software; you can redistribute it and/or
       
   493     modify it under the terms of the GNU Lesser General Public
       
   494     License as published by the Free Software Foundation; either
       
   495     version 2.1 of the License, or (at your option) any later version.
       
   496 
       
   497     This library is distributed in the hope that it will be useful,
       
   498     but WITHOUT ANY WARRANTY; without even the implied warranty of
       
   499     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
       
   500     Lesser General Public License for more details.
       
   501 
       
   502     You should have received a copy of the GNU Lesser General Public
       
   503     License along with this library; if not, write to the Free Software
       
   504     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
       
   505 
       
   506 Also add information on how to contact you by electronic and paper mail.
       
   507 
       
   508 You should also get your employer (if you work as a programmer) or your
       
   509 school, if any, to sign a "copyright disclaimer" for the library, if
       
   510 necessary.  Here is a sample; alter the names:
       
   511 
       
   512   Yoyodyne, Inc., hereby disclaims all copyright interest in the
       
   513   library `Frob' (a library for tweaking knobs) written by James Random Hacker.
       
   514 
       
   515   <signature of Ty Coon>, 1 April 1990
       
   516   Ty Coon, President of Vice
       
   517 
       
   518 That's all there is to it!
       
   519 
       
   520 ---------------------------------------------------------------------------
       
   521 
       
   522                     GNU GENERAL PUBLIC LICENSE
       
   523                        Version 3, 29 June 2007
       
   524 
       
   525  Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
       
   526  Everyone is permitted to copy and distribute verbatim copies
       
   527  of this license document, but changing it is not allowed.
       
   528 
       
   529                             Preamble
       
   530 
       
   531   The GNU General Public License is a free, copyleft license for
       
   532 software and other kinds of works.
       
   533 
       
   534   The licenses for most software and other practical works are designed
       
   535 to take away your freedom to share and change the works.  By contrast,
       
   536 the GNU General Public License is intended to guarantee your freedom to
       
   537 share and change all versions of a program--to make sure it remains free
       
   538 software for all its users.  We, the Free Software Foundation, use the
       
   539 GNU General Public License for most of our software; it applies also to
       
   540 any other work released this way by its authors.  You can apply it to
       
   541 your programs, too.
       
   542 
       
   543   When we speak of free software, we are referring to freedom, not
       
   544 price.  Our General Public Licenses are designed to make sure that you
       
   545 have the freedom to distribute copies of free software (and charge for
       
   546 them if you wish), that you receive source code or can get it if you
       
   547 want it, that you can change the software or use pieces of it in new
       
   548 free programs, and that you know you can do these things.
       
   549 
       
   550   To protect your rights, we need to prevent others from denying you
       
   551 these rights or asking you to surrender the rights.  Therefore, you have
       
   552 certain responsibilities if you distribute copies of the software, or if
       
   553 you modify it: responsibilities to respect the freedom of others.
       
   554 
       
   555   For example, if you distribute copies of such a program, whether
       
   556 gratis or for a fee, you must pass on to the recipients the same
       
   557 freedoms that you received.  You must make sure that they, too, receive
       
   558 or can get the source code.  And you must show them these terms so they
       
   559 know their rights.
       
   560 
       
   561   Developers that use the GNU GPL protect your rights with two steps:
       
   562 (1) assert copyright on the software, and (2) offer you this License
       
   563 giving you legal permission to copy, distribute and/or modify it.
       
   564 
       
   565   For the developers' and authors' protection, the GPL clearly explains
       
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   567 authors' sake, the GPL requires that modified versions be marked as
       
   568 changed, so that their problems will not be attributed erroneously to
       
   569 authors of previous versions.
       
   570 
       
   571   Some devices are designed to deny users access to install or run
       
   572 modified versions of the software inside them, although the manufacturer
       
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   575 pattern of such abuse occurs in the area of products for individuals to
       
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   577 have designed this version of the GPL to prohibit the practice for those
       
   578 products.  If such problems arise substantially in other domains, we
       
   579 stand ready to extend this provision to those domains in future versions
       
   580 of the GPL, as needed to protect the freedom of users.
       
   581 
       
   582   Finally, every program is threatened constantly by software patents.
       
   583 States should not allow patents to restrict development and use of
       
   584 software on general-purpose computers, but in those that do, we wish to
       
   585 avoid the special danger that patents applied to a free program could
       
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   587 patents cannot be used to render the program non-free.
       
   588 
       
   589   The precise terms and conditions for copying, distribution and
       
   590 modification follow.
       
   591 
       
   592                        TERMS AND CONDITIONS
       
   593 
       
   594   0. Definitions.
       
   595 
       
   596   "This License" refers to version 3 of the GNU General Public License.
       
   597 
       
   598   "Copyright" also means copyright-like laws that apply to other kinds of
       
   599 works, such as semiconductor masks.
       
   600 
       
   601   "The Program" refers to any copyrightable work licensed under this
       
   602 License.  Each licensee is addressed as "you".  "Licensees" and
       
   603 "recipients" may be individuals or organizations.
       
   604 
       
   605   To "modify" a work means to copy from or adapt all or part of the work
       
   606 in a fashion requiring copyright permission, other than the making of an
       
   607 exact copy.  The resulting work is called a "modified version" of the
       
   608 earlier work or a work "based on" the earlier work.
       
   609 
       
   610   A "covered work" means either the unmodified Program or a work based
       
   611 on the Program.
       
   612 
       
   613   To "propagate" a work means to do anything with it that, without
       
   614 permission, would make you directly or secondarily liable for
       
   615 infringement under applicable copyright law, except executing it on a
       
   616 computer or modifying a private copy.  Propagation includes copying,
       
   617 distribution (with or without modification), making available to the
       
   618 public, and in some countries other activities as well.
       
   619 
       
   620   To "convey" a work means any kind of propagation that enables other
       
   621 parties to make or receive copies.  Mere interaction with a user through
       
   622 a computer network, with no transfer of a copy, is not conveying.
       
   623 
       
   624   An interactive user interface displays "Appropriate Legal Notices"
       
   625 to the extent that it includes a convenient and prominently visible
       
   626 feature that (1) displays an appropriate copyright notice, and (2)
       
   627 tells the user that there is no warranty for the work (except to the
       
   628 extent that warranties are provided), that licensees may convey the
       
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   630 the interface presents a list of user commands or options, such as a
       
   631 menu, a prominent item in the list meets this criterion.
       
   632 
       
   633   1. Source Code.
       
   634 
       
   635   The "source code" for a work means the preferred form of the work
       
   636 for making modifications to it.  "Object code" means any non-source
       
   637 form of a work.
       
   638 
       
   639   A "Standard Interface" means an interface that either is an official
       
   640 standard defined by a recognized standards body, or, in the case of
       
   641 interfaces specified for a particular programming language, one that
       
   642 is widely used among developers working in that language.
       
   643 
       
   644   The "System Libraries" of an executable work include anything, other
       
   645 than the work as a whole, that (a) is included in the normal form of
       
   646 packaging a Major Component, but which is not part of that Major
       
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   648 Major Component, or to implement a Standard Interface for which an
       
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   650 "Major Component", in this context, means a major essential component
       
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   653 produce the work, or an object code interpreter used to run it.
       
   654 
       
   655   The "Corresponding Source" for a work in object code form means all
       
   656 the source code needed to generate, install, and (for an executable
       
   657 work) run the object code and to modify the work, including scripts to
       
   658 control those activities.  However, it does not include the work's
       
   659 System Libraries, or general-purpose tools or generally available free
       
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   663 the work, and the source code for shared libraries and dynamically
       
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   665 such as by intimate data communication or control flow between those
       
   666 subprograms and other parts of the work.
       
   667 
       
   668   The Corresponding Source need not include anything that users
       
   669 can regenerate automatically from other parts of the Corresponding
       
   670 Source.
       
   671 
       
   672   The Corresponding Source for a work in source code form is that
       
   673 same work.
       
   674 
       
   675   2. Basic Permissions.
       
   676 
       
   677   All rights granted under this License are granted for the term of
       
   678 copyright on the Program, and are irrevocable provided the stated
       
   679 conditions are met.  This License explicitly affirms your unlimited
       
   680 permission to run the unmodified Program.  The output from running a
       
   681 covered work is covered by this License only if the output, given its
       
   682 content, constitutes a covered work.  This License acknowledges your
       
   683 rights of fair use or other equivalent, as provided by copyright law.
       
   684 
       
   685   You may make, run and propagate covered works that you do not
       
   686 convey, without conditions so long as your license otherwise remains
       
   687 in force.  You may convey covered works to others for the sole purpose
       
   688 of having them make modifications exclusively for you, or provide you
       
   689 with facilities for running those works, provided that you comply with
       
   690 the terms of this License in conveying all material for which you do
       
   691 not control copyright.  Those thus making or running the covered works
       
   692 for you must do so exclusively on your behalf, under your direction
       
   693 and control, on terms that prohibit them from making any copies of
       
   694 your copyrighted material outside their relationship with you.
       
   695 
       
   696   Conveying under any other circumstances is permitted solely under
       
   697 the conditions stated below.  Sublicensing is not allowed; section 10
       
   698 makes it unnecessary.
       
   699 
       
   700   3. Protecting Users' Legal Rights From Anti-Circumvention Law.
       
   701 
       
   702   No covered work shall be deemed part of an effective technological
       
   703 measure under any applicable law fulfilling obligations under article
       
   704 11 of the WIPO copyright treaty adopted on 20 December 1996, or
       
   705 similar laws prohibiting or restricting circumvention of such
       
   706 measures.
       
   707 
       
   708   When you convey a covered work, you waive any legal power to forbid
       
   709 circumvention of technological measures to the extent such circumvention
       
   710 is effected by exercising rights under this License with respect to
       
   711 the covered work, and you disclaim any intention to limit operation or
       
   712 modification of the work as a means of enforcing, against the work's
       
   713 users, your or third parties' legal rights to forbid circumvention of
       
   714 technological measures.
       
   715 
       
   716   4. Conveying Verbatim Copies.
       
   717 
       
   718   You may convey verbatim copies of the Program's source code as you
       
   719 receive it, in any medium, provided that you conspicuously and
       
   720 appropriately publish on each copy an appropriate copyright notice;
       
   721 keep intact all notices stating that this License and any
       
   722 non-permissive terms added in accord with section 7 apply to the code;
       
   723 keep intact all notices of the absence of any warranty; and give all
       
   724 recipients a copy of this License along with the Program.
       
   725 
       
   726   You may charge any price or no price for each copy that you convey,
       
   727 and you may offer support or warranty protection for a fee.
       
   728 
       
   729   5. Conveying Modified Source Versions.
       
   730 
       
   731   You may convey a work based on the Program, or the modifications to
       
   732 produce it from the Program, in the form of source code under the
       
   733 terms of section 4, provided that you also meet all of these conditions:
       
   734 
       
   735     a) The work must carry prominent notices stating that you modified
       
   736     it, and giving a relevant date.
       
   737 
       
   738     b) The work must carry prominent notices stating that it is
       
   739     released under this License and any conditions added under section
       
   740     7.  This requirement modifies the requirement in section 4 to
       
   741     "keep intact all notices".
       
   742 
       
   743     c) You must license the entire work, as a whole, under this
       
   744     License to anyone who comes into possession of a copy.  This
       
   745     License will therefore apply, along with any applicable section 7
       
   746     additional terms, to the whole of the work, and all its parts,
       
   747     regardless of how they are packaged.  This License gives no
       
   748     permission to license the work in any other way, but it does not
       
   749     invalidate such permission if you have separately received it.
       
   750 
       
   751     d) If the work has interactive user interfaces, each must display
       
   752     Appropriate Legal Notices; however, if the Program has interactive
       
   753     interfaces that do not display Appropriate Legal Notices, your
       
   754     work need not make them do so.
       
   755 
       
   756   A compilation of a covered work with other separate and independent
       
   757 works, which are not by their nature extensions of the covered work,
       
   758 and which are not combined with it such as to form a larger program,
       
   759 in or on a volume of a storage or distribution medium, is called an
       
   760 "aggregate" if the compilation and its resulting copyright are not
       
   761 used to limit the access or legal rights of the compilation's users
       
   762 beyond what the individual works permit.  Inclusion of a covered work
       
   763 in an aggregate does not cause this License to apply to the other
       
   764 parts of the aggregate.
       
   765 
       
   766   6. Conveying Non-Source Forms.
       
   767 
       
   768   You may convey a covered work in object code form under the terms
       
   769 of sections 4 and 5, provided that you also convey the
       
   770 machine-readable Corresponding Source under the terms of this License,
       
   771 in one of these ways:
       
   772 
       
   773     a) Convey the object code in, or embodied in, a physical product
       
   774     (including a physical distribution medium), accompanied by the
       
   775     Corresponding Source fixed on a durable physical medium
       
   776     customarily used for software interchange.
       
   777 
       
   778     b) Convey the object code in, or embodied in, a physical product
       
   779     (including a physical distribution medium), accompanied by a
       
   780     written offer, valid for at least three years and valid for as
       
   781     long as you offer spare parts or customer support for that product
       
   782     model, to give anyone who possesses the object code either (1) a
       
   783     copy of the Corresponding Source for all the software in the
       
   784     product that is covered by this License, on a durable physical
       
   785     medium customarily used for software interchange, for a price no
       
   786     more than your reasonable cost of physically performing this
       
   787     conveying of source, or (2) access to copy the
       
   788     Corresponding Source from a network server at no charge.
       
   789 
       
   790     c) Convey individual copies of the object code with a copy of the
       
   791     written offer to provide the Corresponding Source.  This
       
   792     alternative is allowed only occasionally and noncommercially, and
       
   793     only if you received the object code with such an offer, in accord
       
   794     with subsection 6b.
       
   795 
       
   796     d) Convey the object code by offering access from a designated
       
   797     place (gratis or for a charge), and offer equivalent access to the
       
   798     Corresponding Source in the same way through the same place at no
       
   799     further charge.  You need not require recipients to copy the
       
   800     Corresponding Source along with the object code.  If the place to
       
   801     copy the object code is a network server, the Corresponding Source
       
   802     may be on a different server (operated by you or a third party)
       
   803     that supports equivalent copying facilities, provided you maintain
       
   804     clear directions next to the object code saying where to find the
       
   805     Corresponding Source.  Regardless of what server hosts the
       
   806     Corresponding Source, you remain obligated to ensure that it is
       
   807     available for as long as needed to satisfy these requirements.
       
   808 
       
   809     e) Convey the object code using peer-to-peer transmission, provided
       
   810     you inform other peers where the object code and Corresponding
       
   811     Source of the work are being offered to the general public at no
       
   812     charge under subsection 6d.
       
   813 
       
   814   A separable portion of the object code, whose source code is excluded
       
   815 from the Corresponding Source as a System Library, need not be
       
   816 included in conveying the object code work.
       
   817 
       
   818   A "User Product" is either (1) a "consumer product", which means any
       
   819 tangible personal property which is normally used for personal, family,
       
   820 or household purposes, or (2) anything designed or sold for incorporation
       
   821 into a dwelling.  In determining whether a product is a consumer product,
       
   822 doubtful cases shall be resolved in favor of coverage.  For a particular
       
   823 product received by a particular user, "normally used" refers to a
       
   824 typical or common use of that class of product, regardless of the status
       
   825 of the particular user or of the way in which the particular user
       
   826 actually uses, or expects or is expected to use, the product.  A product
       
   827 is a consumer product regardless of whether the product has substantial
       
   828 commercial, industrial or non-consumer uses, unless such uses represent
       
   829 the only significant mode of use of the product.
       
   830 
       
   831   "Installation Information" for a User Product means any methods,
       
   832 procedures, authorization keys, or other information required to install
       
   833 and execute modified versions of a covered work in that User Product from
       
   834 a modified version of its Corresponding Source.  The information must
       
   835 suffice to ensure that the continued functioning of the modified object
       
   836 code is in no case prevented or interfered with solely because
       
   837 modification has been made.
       
   838 
       
   839   If you convey an object code work under this section in, or with, or
       
   840 specifically for use in, a User Product, and the conveying occurs as
       
   841 part of a transaction in which the right of possession and use of the
       
   842 User Product is transferred to the recipient in perpetuity or for a
       
   843 fixed term (regardless of how the transaction is characterized), the
       
   844 Corresponding Source conveyed under this section must be accompanied
       
   845 by the Installation Information.  But this requirement does not apply
       
   846 if neither you nor any third party retains the ability to install
       
   847 modified object code on the User Product (for example, the work has
       
   848 been installed in ROM).
       
   849 
       
   850   The requirement to provide Installation Information does not include a
       
   851 requirement to continue to provide support service, warranty, or updates
       
   852 for a work that has been modified or installed by the recipient, or for
       
   853 the User Product in which it has been modified or installed.  Access to a
       
   854 network may be denied when the modification itself materially and
       
   855 adversely affects the operation of the network or violates the rules and
       
   856 protocols for communication across the network.
       
   857 
       
   858   Corresponding Source conveyed, and Installation Information provided,
       
   859 in accord with this section must be in a format that is publicly
       
   860 documented (and with an implementation available to the public in
       
   861 source code form), and must require no special password or key for
       
   862 unpacking, reading or copying.
       
   863 
       
   864   7. Additional Terms.
       
   865 
       
   866   "Additional permissions" are terms that supplement the terms of this
       
   867 License by making exceptions from one or more of its conditions.
       
   868 Additional permissions that are applicable to the entire Program shall
       
   869 be treated as though they were included in this License, to the extent
       
   870 that they are valid under applicable law.  If additional permissions
       
   871 apply only to part of the Program, that part may be used separately
       
   872 under those permissions, but the entire Program remains governed by
       
   873 this License without regard to the additional permissions.
       
   874 
       
   875   When you convey a copy of a covered work, you may at your option
       
   876 remove any additional permissions from that copy, or from any part of
       
   877 it.  (Additional permissions may be written to require their own
       
   878 removal in certain cases when you modify the work.)  You may place
       
   879 additional permissions on material, added by you to a covered work,
       
   880 for which you have or can give appropriate copyright permission.
       
   881 
       
   882   Notwithstanding any other provision of this License, for material you
       
   883 add to a covered work, you may (if authorized by the copyright holders of
       
   884 that material) supplement the terms of this License with terms:
       
   885 
       
   886     a) Disclaiming warranty or limiting liability differently from the
       
   887     terms of sections 15 and 16 of this License; or
       
   888 
       
   889     b) Requiring preservation of specified reasonable legal notices or
       
   890     author attributions in that material or in the Appropriate Legal
       
   891     Notices displayed by works containing it; or
       
   892 
       
   893     c) Prohibiting misrepresentation of the origin of that material, or
       
   894     requiring that modified versions of such material be marked in
       
   895     reasonable ways as different from the original version; or
       
   896 
       
   897     d) Limiting the use for publicity purposes of names of licensors or
       
   898     authors of the material; or
       
   899 
       
   900     e) Declining to grant rights under trademark law for use of some
       
   901     trade names, trademarks, or service marks; or
       
   902 
       
   903     f) Requiring indemnification of licensors and authors of that
       
   904     material by anyone who conveys the material (or modified versions of
       
   905     it) with contractual assumptions of liability to the recipient, for
       
   906     any liability that these contractual assumptions directly impose on
       
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   908 
       
   909   All other non-permissive additional terms are considered "further
       
   910 restrictions" within the meaning of section 10.  If the Program as you
       
   911 received it, or any part of it, contains a notice stating that it is
       
   912 governed by this License along with a term that is a further
       
   913 restriction, you may remove that term.  If a license document contains
       
   914 a further restriction but permits relicensing or conveying under this
       
   915 License, you may add to a covered work material governed by the terms
       
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   917 not survive such relicensing or conveying.
       
   918 
       
   919   If you add terms to a covered work in accord with this section, you
       
   920 must place, in the relevant source files, a statement of the
       
   921 additional terms that apply to those files, or a notice indicating
       
   922 where to find the applicable terms.
       
   923 
       
   924   Additional terms, permissive or non-permissive, may be stated in the
       
   925 form of a separately written license, or stated as exceptions;
       
   926 the above requirements apply either way.
       
   927 
       
   928   8. Termination.
       
   929 
       
   930   You may not propagate or modify a covered work except as expressly
       
   931 provided under this License.  Any attempt otherwise to propagate or
       
   932 modify it is void, and will automatically terminate your rights under
       
   933 this License (including any patent licenses granted under the third
       
   934 paragraph of section 11).
       
   935 
       
   936   However, if you cease all violation of this License, then your
       
   937 license from a particular copyright holder is reinstated (a)
       
   938 provisionally, unless and until the copyright holder explicitly and
       
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   940 holder fails to notify you of the violation by some reasonable means
       
   941 prior to 60 days after the cessation.
       
   942 
       
   943   Moreover, your license from a particular copyright holder is
       
   944 reinstated permanently if the copyright holder notifies you of the
       
   945 violation by some reasonable means, this is the first time you have
       
   946 received notice of violation of this License (for any work) from that
       
   947 copyright holder, and you cure the violation prior to 30 days after
       
   948 your receipt of the notice.
       
   949 
       
   950   Termination of your rights under this section does not terminate the
       
   951 licenses of parties who have received copies or rights from you under
       
   952 this License.  If your rights have been terminated and not permanently
       
   953 reinstated, you do not qualify to receive new licenses for the same
       
   954 material under section 10.
       
   955 
       
   956   9. Acceptance Not Required for Having Copies.
       
   957 
       
   958   You are not required to accept this License in order to receive or
       
   959 run a copy of the Program.  Ancillary propagation of a covered work
       
   960 occurring solely as a consequence of using peer-to-peer transmission
       
   961 to receive a copy likewise does not require acceptance.  However,
       
   962 nothing other than this License grants you permission to propagate or
       
   963 modify any covered work.  These actions infringe copyright if you do
       
   964 not accept this License.  Therefore, by modifying or propagating a
       
   965 covered work, you indicate your acceptance of this License to do so.
       
   966 
       
   967   10. Automatic Licensing of Downstream Recipients.
       
   968 
       
   969   Each time you convey a covered work, the recipient automatically
       
   970 receives a license from the original licensors, to run, modify and
       
   971 propagate that work, subject to this License.  You are not responsible
       
   972 for enforcing compliance by third parties with this License.
       
   973 
       
   974   An "entity transaction" is a transaction transferring control of an
       
   975 organization, or substantially all assets of one, or subdividing an
       
   976 organization, or merging organizations.  If propagation of a covered
       
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   978 transaction who receives a copy of the work also receives whatever
       
   979 licenses to the work the party's predecessor in interest had or could
       
   980 give under the previous paragraph, plus a right to possession of the
       
   981 Corresponding Source of the work from the predecessor in interest, if
       
   982 the predecessor has it or can get it with reasonable efforts.
       
   983 
       
   984   You may not impose any further restrictions on the exercise of the
       
   985 rights granted or affirmed under this License.  For example, you may
       
   986 not impose a license fee, royalty, or other charge for exercise of
       
   987 rights granted under this License, and you may not initiate litigation
       
   988 (including a cross-claim or counterclaim in a lawsuit) alleging that
       
   989 any patent claim is infringed by making, using, selling, offering for
       
   990 sale, or importing the Program or any portion of it.
       
   991 
       
   992   11. Patents.
       
   993 
       
   994   A "contributor" is a copyright holder who authorizes use under this
       
   995 License of the Program or a work on which the Program is based.  The
       
   996 work thus licensed is called the contributor's "contributor version".
       
   997 
       
   998   A contributor's "essential patent claims" are all patent claims
       
   999 owned or controlled by the contributor, whether already acquired or
       
  1000 hereafter acquired, that would be infringed by some manner, permitted
       
  1001 by this License, of making, using, or selling its contributor version,
       
  1002 but do not include claims that would be infringed only as a
       
  1003 consequence of further modification of the contributor version.  For
       
  1004 purposes of this definition, "control" includes the right to grant
       
  1005 patent sublicenses in a manner consistent with the requirements of
       
  1006 this License.
       
  1007 
       
  1008   Each contributor grants you a non-exclusive, worldwide, royalty-free
       
  1009 patent license under the contributor's essential patent claims, to
       
  1010 make, use, sell, offer for sale, import and otherwise run, modify and
       
  1011 propagate the contents of its contributor version.
       
  1012 
       
  1013   In the following three paragraphs, a "patent license" is any express
       
  1014 agreement or commitment, however denominated, not to enforce a patent
       
  1015 (such as an express permission to practice a patent or covenant not to
       
  1016 sue for patent infringement).  To "grant" such a patent license to a
       
  1017 party means to make such an agreement or commitment not to enforce a
       
  1018 patent against the party.
       
  1019 
       
  1020   If you convey a covered work, knowingly relying on a patent license,
       
  1021 and the Corresponding Source of the work is not available for anyone
       
  1022 to copy, free of charge and under the terms of this License, through a
       
  1023 publicly available network server or other readily accessible means,
       
  1024 then you must either (1) cause the Corresponding Source to be so
       
  1025 available, or (2) arrange to deprive yourself of the benefit of the
       
  1026 patent license for this particular work, or (3) arrange, in a manner
       
  1027 consistent with the requirements of this License, to extend the patent
       
  1028 license to downstream recipients.  "Knowingly relying" means you have
       
  1029 actual knowledge that, but for the patent license, your conveying the
       
  1030 covered work in a country, or your recipient's use of the covered work
       
  1031 in a country, would infringe one or more identifiable patents in that
       
  1032 country that you have reason to believe are valid.
       
  1033 
       
  1034   If, pursuant to or in connection with a single transaction or
       
  1035 arrangement, you convey, or propagate by procuring conveyance of, a
       
  1036 covered work, and grant a patent license to some of the parties
       
  1037 receiving the covered work authorizing them to use, propagate, modify
       
  1038 or convey a specific copy of the covered work, then the patent license
       
  1039 you grant is automatically extended to all recipients of the covered
       
  1040 work and works based on it.
       
  1041 
       
  1042   A patent license is "discriminatory" if it does not include within
       
  1043 the scope of its coverage, prohibits the exercise of, or is
       
  1044 conditioned on the non-exercise of one or more of the rights that are
       
  1045 specifically granted under this License.  You may not convey a covered
       
  1046 work if you are a party to an arrangement with a third party that is
       
  1047 in the business of distributing software, under which you make payment
       
  1048 to the third party based on the extent of your activity of conveying
       
  1049 the work, and under which the third party grants, to any of the
       
  1050 parties who would receive the covered work from you, a discriminatory
       
  1051 patent license (a) in connection with copies of the covered work
       
  1052 conveyed by you (or copies made from those copies), or (b) primarily
       
  1053 for and in connection with specific products or compilations that
       
  1054 contain the covered work, unless you entered into that arrangement,
       
  1055 or that patent license was granted, prior to 28 March 2007.
       
  1056 
       
  1057   Nothing in this License shall be construed as excluding or limiting
       
  1058 any implied license or other defenses to infringement that may
       
  1059 otherwise be available to you under applicable patent law.
       
  1060 
       
  1061   12. No Surrender of Others' Freedom.
       
  1062 
       
  1063   If conditions are imposed on you (whether by court order, agreement or
       
  1064 otherwise) that contradict the conditions of this License, they do not
       
  1065 excuse you from the conditions of this License.  If you cannot convey a
       
  1066 covered work so as to satisfy simultaneously your obligations under this
       
  1067 License and any other pertinent obligations, then as a consequence you may
       
  1068 not convey it at all.  For example, if you agree to terms that obligate you
       
  1069 to collect a royalty for further conveying from those to whom you convey
       
  1070 the Program, the only way you could satisfy both those terms and this
       
  1071 License would be to refrain entirely from conveying the Program.
       
  1072 
       
  1073   13. Use with the GNU Affero General Public License.
       
  1074 
       
  1075   Notwithstanding any other provision of this License, you have
       
  1076 permission to link or combine any covered work with a work licensed
       
  1077 under version 3 of the GNU Affero General Public License into a single
       
  1078 combined work, and to convey the resulting work.  The terms of this
       
  1079 License will continue to apply to the part which is the covered work,
       
  1080 but the special requirements of the GNU Affero General Public License,
       
  1081 section 13, concerning interaction through a network will apply to the
       
  1082 combination as such.
       
  1083 
       
  1084   14. Revised Versions of this License.
       
  1085 
       
  1086   The Free Software Foundation may publish revised and/or new versions of
       
  1087 the GNU General Public License from time to time.  Such new versions will
       
  1088 be similar in spirit to the present version, but may differ in detail to
       
  1089 address new problems or concerns.
       
  1090 
       
  1091   Each version is given a distinguishing version number.  If the
       
  1092 Program specifies that a certain numbered version of the GNU General
       
  1093 Public License "or any later version" applies to it, you have the
       
  1094 option of following the terms and conditions either of that numbered
       
  1095 version or of any later version published by the Free Software
       
  1096 Foundation.  If the Program does not specify a version number of the
       
  1097 GNU General Public License, you may choose any version ever published
       
  1098 by the Free Software Foundation.
       
  1099 
       
  1100   If the Program specifies that a proxy can decide which future
       
  1101 versions of the GNU General Public License can be used, that proxy's
       
  1102 public statement of acceptance of a version permanently authorizes you
       
  1103 to choose that version for the Program.
       
  1104 
       
  1105   Later license versions may give you additional or different
       
  1106 permissions.  However, no additional obligations are imposed on any
       
  1107 author or copyright holder as a result of your choosing to follow a
       
  1108 later version.
       
  1109 
       
  1110   15. Disclaimer of Warranty.
       
  1111 
       
  1112   THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
       
  1113 APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
       
  1114 HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
       
  1115 OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
       
  1116 THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
       
  1117 PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
       
  1118 IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
       
  1119 ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
       
  1120 
       
  1121   16. Limitation of Liability.
       
  1122 
       
  1123   IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
       
  1124 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
       
  1125 THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
       
  1126 GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
       
  1127 USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
       
  1128 DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
       
  1129 PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
       
  1130 EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
       
  1131 SUCH DAMAGES.
       
  1132 
       
  1133   17. Interpretation of Sections 15 and 16.
       
  1134 
       
  1135   If the disclaimer of warranty and limitation of liability provided
       
  1136 above cannot be given local legal effect according to their terms,
       
  1137 reviewing courts shall apply local law that most closely approximates
       
  1138 an absolute waiver of all civil liability in connection with the
       
  1139 Program, unless a warranty or assumption of liability accompanies a
       
  1140 copy of the Program in return for a fee.
       
  1141 
       
  1142                      END OF TERMS AND CONDITIONS
       
  1143 
       
  1144             How to Apply These Terms to Your New Programs
       
  1145 
       
  1146   If you develop a new program, and you want it to be of the greatest
       
  1147 possible use to the public, the best way to achieve this is to make it
       
  1148 free software which everyone can redistribute and change under these terms.
       
  1149 
       
  1150   To do so, attach the following notices to the program.  It is safest
       
  1151 to attach them to the start of each source file to most effectively
       
  1152 state the exclusion of warranty; and each file should have at least
       
  1153 the "copyright" line and a pointer to where the full notice is found.
       
  1154 
       
  1155     <one line to give the program's name and a brief idea of what it does.>
       
  1156     Copyright (C) <year>  <name of author>
       
  1157 
       
  1158     This program is free software: you can redistribute it and/or modify
       
  1159     it under the terms of the GNU General Public License as published by
       
  1160     the Free Software Foundation, either version 3 of the License, or
       
  1161     (at your option) any later version.
       
  1162 
       
  1163     This program is distributed in the hope that it will be useful,
       
  1164     but WITHOUT ANY WARRANTY; without even the implied warranty of
       
  1165     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
       
  1166     GNU General Public License for more details.
       
  1167 
       
  1168     You should have received a copy of the GNU General Public License
       
  1169     along with this program.  If not, see <http://www.gnu.org/licenses/>.
       
  1170 
       
  1171 Also add information on how to contact you by electronic and paper mail.
       
  1172 
       
  1173   If the program does terminal interaction, make it output a short
       
  1174 notice like this when it starts in an interactive mode:
       
  1175 
       
  1176     <program>  Copyright (C) <year>  <name of author>
       
  1177     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
       
  1178     This is free software, and you are welcome to redistribute it
       
  1179     under certain conditions; type `show c' for details.
       
  1180 
       
  1181 The hypothetical commands `show w' and `show c' should show the appropriate
       
  1182 parts of the General Public License.  Of course, your program's commands
       
  1183 might be different; for a GUI interface, you would use an "about box".
       
  1184 
       
  1185   You should also get your employer (if you work as a programmer) or school,
       
  1186 if any, to sign a "copyright disclaimer" for the program, if necessary.
       
  1187 For more information on this, and how to apply and follow the GNU GPL, see
       
  1188 <http://www.gnu.org/licenses/>.
       
  1189 
       
  1190   The GNU General Public License does not permit incorporating your program
       
  1191 into proprietary programs.  If your program is a subroutine library, you
       
  1192 may consider it more useful to permit linking proprietary applications with
       
  1193 the library.  If this is what you want to do, use the GNU Lesser General
       
  1194 Public License instead of this License.  But first, please read
       
  1195 <http://www.gnu.org/philosophy/why-not-lgpl.html>.
       
  1196 
       
  1197 -------------------------------------------------------------------------
       
  1198 
       
  1199                 GNU Free Documentation License
       
  1200                  Version 1.3, 3 November 2008
       
  1201 
       
  1202 
       
  1203  Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
       
  1204      <http://fsf.org/>
       
  1205  Everyone is permitted to copy and distribute verbatim copies
       
  1206  of this license document, but changing it is not allowed.
       
  1207 
       
  1208 0. PREAMBLE
       
  1209 
       
  1210 The purpose of this License is to make a manual, textbook, or other
       
  1211 functional and useful document "free" in the sense of freedom: to
       
  1212 assure everyone the effective freedom to copy and redistribute it,
       
  1213 with or without modifying it, either commercially or noncommercially.
       
  1214 Secondarily, this License preserves for the author and publisher a way
       
  1215 to get credit for their work, while not being considered responsible
       
  1216 for modifications made by others.
       
  1217 
       
  1218 This License is a kind of "copyleft", which means that derivative
       
  1219 works of the document must themselves be free in the same sense.  It
       
  1220 complements the GNU General Public License, which is a copyleft
       
  1221 license designed for free software.
       
  1222 
       
  1223 We have designed this License in order to use it for manuals for free
       
  1224 software, because free software needs free documentation: a free
       
  1225 program should come with manuals providing the same freedoms that the
       
  1226 software does.  But this License is not limited to software manuals;
       
  1227 it can be used for any textual work, regardless of subject matter or
       
  1228 whether it is published as a printed book.  We recommend this License
       
  1229 principally for works whose purpose is instruction or reference.
       
  1230 
       
  1231 
       
  1232 1. APPLICABILITY AND DEFINITIONS
       
  1233 
       
  1234 This License applies to any manual or other work, in any medium, that
       
  1235 contains a notice placed by the copyright holder saying it can be
       
  1236 distributed under the terms of this License.  Such a notice grants a
       
  1237 world-wide, royalty-free license, unlimited in duration, to use that
       
  1238 work under the conditions stated herein.  The "Document", below,
       
  1239 refers to any such manual or work.  Any member of the public is a
       
  1240 licensee, and is addressed as "you".  You accept the license if you
       
  1241 copy, modify or distribute the work in a way requiring permission
       
  1242 under copyright law.
       
  1243 
       
  1244 A "Modified Version" of the Document means any work containing the
       
  1245 Document or a portion of it, either copied verbatim, or with
       
  1246 modifications and/or translated into another language.
       
  1247 
       
  1248 A "Secondary Section" is a named appendix or a front-matter section of
       
  1249 the Document that deals exclusively with the relationship of the
       
  1250 publishers or authors of the Document to the Document's overall
       
  1251 subject (or to related matters) and contains nothing that could fall
       
  1252 directly within that overall subject.  (Thus, if the Document is in
       
  1253 part a textbook of mathematics, a Secondary Section may not explain
       
  1254 any mathematics.)  The relationship could be a matter of historical
       
  1255 connection with the subject or with related matters, or of legal,
       
  1256 commercial, philosophical, ethical or political position regarding
       
  1257 them.
       
  1258 
       
  1259 The "Invariant Sections" are certain Secondary Sections whose titles
       
  1260 are designated, as being those of Invariant Sections, in the notice
       
  1261 that says that the Document is released under this License.  If a
       
  1262 section does not fit the above definition of Secondary then it is not
       
  1263 allowed to be designated as Invariant.  The Document may contain zero
       
  1264 Invariant Sections.  If the Document does not identify any Invariant
       
  1265 Sections then there are none.
       
  1266 
       
  1267 The "Cover Texts" are certain short passages of text that are listed,
       
  1268 as Front-Cover Texts or Back-Cover Texts, in the notice that says that
       
  1269 the Document is released under this License.  A Front-Cover Text may
       
  1270 be at most 5 words, and a Back-Cover Text may be at most 25 words.
       
  1271 
       
  1272 A "Transparent" copy of the Document means a machine-readable copy,
       
  1273 represented in a format whose specification is available to the
       
  1274 general public, that is suitable for revising the document
       
  1275 straightforwardly with generic text editors or (for images composed of
       
  1276 pixels) generic paint programs or (for drawings) some widely available
       
  1277 drawing editor, and that is suitable for input to text formatters or
       
  1278 for automatic translation to a variety of formats suitable for input
       
  1279 to text formatters.  A copy made in an otherwise Transparent file
       
  1280 format whose markup, or absence of markup, has been arranged to thwart
       
  1281 or discourage subsequent modification by readers is not Transparent.
       
  1282 An image format is not Transparent if used for any substantial amount
       
  1283 of text.  A copy that is not "Transparent" is called "Opaque".
       
  1284 
       
  1285 Examples of suitable formats for Transparent copies include plain
       
  1286 ASCII without markup, Texinfo input format, LaTeX input format, SGML
       
  1287 or XML using a publicly available DTD, and standard-conforming simple
       
  1288 HTML, PostScript or PDF designed for human modification.  Examples of
       
  1289 transparent image formats include PNG, XCF and JPG.  Opaque formats
       
  1290 include proprietary formats that can be read and edited only by
       
  1291 proprietary word processors, SGML or XML for which the DTD and/or
       
  1292 processing tools are not generally available, and the
       
  1293 machine-generated HTML, PostScript or PDF produced by some word
       
  1294 processors for output purposes only.
       
  1295 
       
  1296 The "Title Page" means, for a printed book, the title page itself,
       
  1297 plus such following pages as are needed to hold, legibly, the material
       
  1298 this License requires to appear in the title page.  For works in
       
  1299 formats which do not have any title page as such, "Title Page" means
       
  1300 the text near the most prominent appearance of the work's title,
       
  1301 preceding the beginning of the body of the text.
       
  1302 
       
  1303 The "publisher" means any person or entity that distributes copies of
       
  1304 the Document to the public.
       
  1305 
       
  1306 A section "Entitled XYZ" means a named subunit of the Document whose
       
  1307 title either is precisely XYZ or contains XYZ in parentheses following
       
  1308 text that translates XYZ in another language.  (Here XYZ stands for a
       
  1309 specific section name mentioned below, such as "Acknowledgements",
       
  1310 "Dedications", "Endorsements", or "History".)  To "Preserve the Title"
       
  1311 of such a section when you modify the Document means that it remains a
       
  1312 section "Entitled XYZ" according to this definition.
       
  1313 
       
  1314 The Document may include Warranty Disclaimers next to the notice which
       
  1315 states that this License applies to the Document.  These Warranty
       
  1316 Disclaimers are considered to be included by reference in this
       
  1317 License, but only as regards disclaiming warranties: any other
       
  1318 implication that these Warranty Disclaimers may have is void and has
       
  1319 no effect on the meaning of this License.
       
  1320 
       
  1321 2. VERBATIM COPYING
       
  1322 
       
  1323 You may copy and distribute the Document in any medium, either
       
  1324 commercially or noncommercially, provided that this License, the
       
  1325 copyright notices, and the license notice saying this License applies
       
  1326 to the Document are reproduced in all copies, and that you add no
       
  1327 other conditions whatsoever to those of this License.  You may not use
       
  1328 technical measures to obstruct or control the reading or further
       
  1329 copying of the copies you make or distribute.  However, you may accept
       
  1330 compensation in exchange for copies.  If you distribute a large enough
       
  1331 number of copies you must also follow the conditions in section 3.
       
  1332 
       
  1333 You may also lend copies, under the same conditions stated above, and
       
  1334 you may publicly display copies.
       
  1335 
       
  1336 
       
  1337 3. COPYING IN QUANTITY
       
  1338 
       
  1339 If you publish printed copies (or copies in media that commonly have
       
  1340 printed covers) of the Document, numbering more than 100, and the
       
  1341 Document's license notice requires Cover Texts, you must enclose the
       
  1342 copies in covers that carry, clearly and legibly, all these Cover
       
  1343 Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on
       
  1344 the back cover.  Both covers must also clearly and legibly identify
       
  1345 you as the publisher of these copies.  The front cover must present
       
  1346 the full title with all words of the title equally prominent and
       
  1347 visible.  You may add other material on the covers in addition.
       
  1348 Copying with changes limited to the covers, as long as they preserve
       
  1349 the title of the Document and satisfy these conditions, can be treated
       
  1350 as verbatim copying in other respects.
       
  1351 
       
  1352 If the required texts for either cover are too voluminous to fit
       
  1353 legibly, you should put the first ones listed (as many as fit
       
  1354 reasonably) on the actual cover, and continue the rest onto adjacent
       
  1355 pages.
       
  1356 
       
  1357 If you publish or distribute Opaque copies of the Document numbering
       
  1358 more than 100, you must either include a machine-readable Transparent
       
  1359 copy along with each Opaque copy, or state in or with each Opaque copy
       
  1360 a computer-network location from which the general network-using
       
  1361 public has access to download using public-standard network protocols
       
  1362 a complete Transparent copy of the Document, free of added material.
       
  1363 If you use the latter option, you must take reasonably prudent steps,
       
  1364 when you begin distribution of Opaque copies in quantity, to ensure
       
  1365 that this Transparent copy will remain thus accessible at the stated
       
  1366 location until at least one year after the last time you distribute an
       
  1367 Opaque copy (directly or through your agents or retailers) of that
       
  1368 edition to the public.
       
  1369 
       
  1370 It is requested, but not required, that you contact the authors of the
       
  1371 Document well before redistributing any large number of copies, to
       
  1372 give them a chance to provide you with an updated version of the
       
  1373 Document.
       
  1374 
       
  1375 
       
  1376 4. MODIFICATIONS
       
  1377 
       
  1378 You may copy and distribute a Modified Version of the Document under
       
  1379 the conditions of sections 2 and 3 above, provided that you release
       
  1380 the Modified Version under precisely this License, with the Modified
       
  1381 Version filling the role of the Document, thus licensing distribution
       
  1382 and modification of the Modified Version to whoever possesses a copy
       
  1383 of it.  In addition, you must do these things in the Modified Version:
       
  1384 
       
  1385 A. Use in the Title Page (and on the covers, if any) a title distinct
       
  1386    from that of the Document, and from those of previous versions
       
  1387    (which should, if there were any, be listed in the History section
       
  1388    of the Document).  You may use the same title as a previous version
       
  1389    if the original publisher of that version gives permission.
       
  1390 B. List on the Title Page, as authors, one or more persons or entities
       
  1391    responsible for authorship of the modifications in the Modified
       
  1392    Version, together with at least five of the principal authors of the
       
  1393    Document (all of its principal authors, if it has fewer than five),
       
  1394    unless they release you from this requirement.
       
  1395 C. State on the Title page the name of the publisher of the
       
  1396    Modified Version, as the publisher.
       
  1397 D. Preserve all the copyright notices of the Document.
       
  1398 E. Add an appropriate copyright notice for your modifications
       
  1399    adjacent to the other copyright notices.
       
  1400 F. Include, immediately after the copyright notices, a license notice
       
  1401    giving the public permission to use the Modified Version under the
       
  1402    terms of this License, in the form shown in the Addendum below.
       
  1403 G. Preserve in that license notice the full lists of Invariant Sections
       
  1404    and required Cover Texts given in the Document's license notice.
       
  1405 H. Include an unaltered copy of this License.
       
  1406 I. Preserve the section Entitled "History", Preserve its Title, and add
       
  1407    to it an item stating at least the title, year, new authors, and
       
  1408    publisher of the Modified Version as given on the Title Page.  If
       
  1409    there is no section Entitled "History" in the Document, create one
       
  1410    stating the title, year, authors, and publisher of the Document as
       
  1411    given on its Title Page, then add an item describing the Modified
       
  1412    Version as stated in the previous sentence.
       
  1413 J. Preserve the network location, if any, given in the Document for
       
  1414    public access to a Transparent copy of the Document, and likewise
       
  1415    the network locations given in the Document for previous versions
       
  1416    it was based on.  These may be placed in the "History" section.
       
  1417    You may omit a network location for a work that was published at
       
  1418    least four years before the Document itself, or if the original
       
  1419    publisher of the version it refers to gives permission.
       
  1420 K. For any section Entitled "Acknowledgements" or "Dedications",
       
  1421    Preserve the Title of the section, and preserve in the section all
       
  1422    the substance and tone of each of the contributor acknowledgements
       
  1423    and/or dedications given therein.
       
  1424 L. Preserve all the Invariant Sections of the Document,
       
  1425    unaltered in their text and in their titles.  Section numbers
       
  1426    or the equivalent are not considered part of the section titles.
       
  1427 M. Delete any section Entitled "Endorsements".  Such a section
       
  1428    may not be included in the Modified Version.
       
  1429 N. Do not retitle any existing section to be Entitled "Endorsements"
       
  1430    or to conflict in title with any Invariant Section.
       
  1431 O. Preserve any Warranty Disclaimers.
       
  1432 
       
  1433 If the Modified Version includes new front-matter sections or
       
  1434 appendices that qualify as Secondary Sections and contain no material
       
  1435 copied from the Document, you may at your option designate some or all
       
  1436 of these sections as invariant.  To do this, add their titles to the
       
  1437 list of Invariant Sections in the Modified Version's license notice.
       
  1438 These titles must be distinct from any other section titles.
       
  1439 
       
  1440 You may add a section Entitled "Endorsements", provided it contains
       
  1441 nothing but endorsements of your Modified Version by various
       
  1442 parties--for example, statements of peer review or that the text has
       
  1443 been approved by an organization as the authoritative definition of a
       
  1444 standard.
       
  1445 
       
  1446 You may add a passage of up to five words as a Front-Cover Text, and a
       
  1447 passage of up to 25 words as a Back-Cover Text, to the end of the list
       
  1448 of Cover Texts in the Modified Version.  Only one passage of
       
  1449 Front-Cover Text and one of Back-Cover Text may be added by (or
       
  1450 through arrangements made by) any one entity.  If the Document already
       
  1451 includes a cover text for the same cover, previously added by you or
       
  1452 by arrangement made by the same entity you are acting on behalf of,
       
  1453 you may not add another; but you may replace the old one, on explicit
       
  1454 permission from the previous publisher that added the old one.
       
  1455 
       
  1456 The author(s) and publisher(s) of the Document do not by this License
       
  1457 give permission to use their names for publicity for or to assert or
       
  1458 imply endorsement of any Modified Version.
       
  1459 
       
  1460 
       
  1461 5. COMBINING DOCUMENTS
       
  1462 
       
  1463 You may combine the Document with other documents released under this
       
  1464 License, under the terms defined in section 4 above for modified
       
  1465 versions, provided that you include in the combination all of the
       
  1466 Invariant Sections of all of the original documents, unmodified, and
       
  1467 list them all as Invariant Sections of your combined work in its
       
  1468 license notice, and that you preserve all their Warranty Disclaimers.
       
  1469 
       
  1470 The combined work need only contain one copy of this License, and
       
  1471 multiple identical Invariant Sections may be replaced with a single
       
  1472 copy.  If there are multiple Invariant Sections with the same name but
       
  1473 different contents, make the title of each such section unique by
       
  1474 adding at the end of it, in parentheses, the name of the original
       
  1475 author or publisher of that section if known, or else a unique number.
       
  1476 Make the same adjustment to the section titles in the list of
       
  1477 Invariant Sections in the license notice of the combined work.
       
  1478 
       
  1479 In the combination, you must combine any sections Entitled "History"
       
  1480 in the various original documents, forming one section Entitled
       
  1481 "History"; likewise combine any sections Entitled "Acknowledgements",
       
  1482 and any sections Entitled "Dedications".  You must delete all sections
       
  1483 Entitled "Endorsements".
       
  1484 
       
  1485 
       
  1486 6. COLLECTIONS OF DOCUMENTS
       
  1487 
       
  1488 You may make a collection consisting of the Document and other
       
  1489 documents released under this License, and replace the individual
       
  1490 copies of this License in the various documents with a single copy
       
  1491 that is included in the collection, provided that you follow the rules
       
  1492 of this License for verbatim copying of each of the documents in all
       
  1493 other respects.
       
  1494 
       
  1495 You may extract a single document from such a collection, and
       
  1496 distribute it individually under this License, provided you insert a
       
  1497 copy of this License into the extracted document, and follow this
       
  1498 License in all other respects regarding verbatim copying of that
       
  1499 document.
       
  1500 
       
  1501 
       
  1502 7. AGGREGATION WITH INDEPENDENT WORKS
       
  1503 
       
  1504 A compilation of the Document or its derivatives with other separate
       
  1505 and independent documents or works, in or on a volume of a storage or
       
  1506 distribution medium, is called an "aggregate" if the copyright
       
  1507 resulting from the compilation is not used to limit the legal rights
       
  1508 of the compilation's users beyond what the individual works permit.
       
  1509 When the Document is included in an aggregate, this License does not
       
  1510 apply to the other works in the aggregate which are not themselves
       
  1511 derivative works of the Document.
       
  1512 
       
  1513 If the Cover Text requirement of section 3 is applicable to these
       
  1514 copies of the Document, then if the Document is less than one half of
       
  1515 the entire aggregate, the Document's Cover Texts may be placed on
       
  1516 covers that bracket the Document within the aggregate, or the
       
  1517 electronic equivalent of covers if the Document is in electronic form.
       
  1518 Otherwise they must appear on printed covers that bracket the whole
       
  1519 aggregate.
       
  1520 
       
  1521 
       
  1522 8. TRANSLATION
       
  1523 
       
  1524 Translation is considered a kind of modification, so you may
       
  1525 distribute translations of the Document under the terms of section 4.
       
  1526 Replacing Invariant Sections with translations requires special
       
  1527 permission from their copyright holders, but you may include
       
  1528 translations of some or all Invariant Sections in addition to the
       
  1529 original versions of these Invariant Sections.  You may include a
       
  1530 translation of this License, and all the license notices in the
       
  1531 Document, and any Warranty Disclaimers, provided that you also include
       
  1532 the original English version of this License and the original versions
       
  1533 of those notices and disclaimers.  In case of a disagreement between
       
  1534 the translation and the original version of this License or a notice
       
  1535 or disclaimer, the original version will prevail.
       
  1536 
       
  1537 If a section in the Document is Entitled "Acknowledgements",
       
  1538 "Dedications", or "History", the requirement (section 4) to Preserve
       
  1539 its Title (section 1) will typically require changing the actual
       
  1540 title.
       
  1541 
       
  1542 
       
  1543 9. TERMINATION
       
  1544 
       
  1545 You may not copy, modify, sublicense, or distribute the Document
       
  1546 except as expressly provided under this License.  Any attempt
       
  1547 otherwise to copy, modify, sublicense, or distribute it is void, and
       
  1548 will automatically terminate your rights under this License.
       
  1549 
       
  1550 However, if you cease all violation of this License, then your license
       
  1551 from a particular copyright holder is reinstated (a) provisionally,
       
  1552 unless and until the copyright holder explicitly and finally
       
  1553 terminates your license, and (b) permanently, if the copyright holder
       
  1554 fails to notify you of the violation by some reasonable means prior to
       
  1555 60 days after the cessation.
       
  1556 
       
  1557 Moreover, your license from a particular copyright holder is
       
  1558 reinstated permanently if the copyright holder notifies you of the
       
  1559 violation by some reasonable means, this is the first time you have
       
  1560 received notice of violation of this License (for any work) from that
       
  1561 copyright holder, and you cure the violation prior to 30 days after
       
  1562 your receipt of the notice.
       
  1563 
       
  1564 Termination of your rights under this section does not terminate the
       
  1565 licenses of parties who have received copies or rights from you under
       
  1566 this License.  If your rights have been terminated and not permanently
       
  1567 reinstated, receipt of a copy of some or all of the same material does
       
  1568 not give you any rights to use it.
       
  1569 
       
  1570 
       
  1571 10. FUTURE REVISIONS OF THIS LICENSE
       
  1572 
       
  1573 The Free Software Foundation may publish new, revised versions of the
       
  1574 GNU Free Documentation License from time to time.  Such new versions
       
  1575 will be similar in spirit to the present version, but may differ in
       
  1576 detail to address new problems or concerns.  See
       
  1577 http://www.gnu.org/copyleft/.
       
  1578 
       
  1579 Each version of the License is given a distinguishing version number.
       
  1580 If the Document specifies that a particular numbered version of this
       
  1581 License "or any later version" applies to it, you have the option of
       
  1582 following the terms and conditions either of that specified version or
       
  1583 of any later version that has been published (not as a draft) by the
       
  1584 Free Software Foundation.  If the Document does not specify a version
       
  1585 number of this License, you may choose any version ever published (not
       
  1586 as a draft) by the Free Software Foundation.  If the Document
       
  1587 specifies that a proxy can decide which future versions of this
       
  1588 License can be used, that proxy's public statement of acceptance of a
       
  1589 version permanently authorizes you to choose that version for the
       
  1590 Document.
       
  1591 
       
  1592 11. RELICENSING
       
  1593 
       
  1594 "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       
  1595 World Wide Web server that publishes copyrightable works and also
       
  1596 provides prominent facilities for anybody to edit those works.  A
       
  1597 public wiki that anybody can edit is an example of such a server.  A
       
  1598 "Massive Multiauthor Collaboration" (or "MMC") contained in the site
       
  1599 means any set of copyrightable works thus published on the MMC site.
       
  1600 
       
  1601 "CC-BY-SA" means the Creative Commons Attribution-Share Alike 3.0 
       
  1602 license published by Creative Commons Corporation, a not-for-profit 
       
  1603 corporation with a principal place of business in San Francisco, 
       
  1604 California, as well as future copyleft versions of that license 
       
  1605 published by that same organization.
       
  1606 
       
  1607 "Incorporate" means to publish or republish a Document, in whole or in 
       
  1608 part, as part of another Document.
       
  1609 
       
  1610 An MMC is "eligible for relicensing" if it is licensed under this 
       
  1611 License, and if all works that were first published under this License 
       
  1612 somewhere other than this MMC, and subsequently incorporated in whole or 
       
  1613 in part into the MMC, (1) had no cover texts or invariant sections, and 
       
  1614 (2) were thus incorporated prior to November 1, 2008.
       
  1615 
       
  1616 The operator of an MMC Site may republish an MMC contained in the site
       
  1617 under CC-BY-SA on the same site at any time before August 1, 2009,
       
  1618 provided the MMC is eligible for relicensing.
       
  1619 
       
  1620 
       
  1621 ADDENDUM: How to use this License for your documents
       
  1622 
       
  1623 To use this License in a document you have written, include a copy of
       
  1624 the License in the document and put the following copyright and
       
  1625 license notices just after the title page:
       
  1626 
       
  1627     Copyright (c)  YEAR  YOUR NAME.
       
  1628     Permission is granted to copy, distribute and/or modify this document
       
  1629     under the terms of the GNU Free Documentation License, Version 1.3
       
  1630     or any later version published by the Free Software Foundation;
       
  1631     with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
       
  1632     A copy of the license is included in the section entitled "GNU
       
  1633     Free Documentation License".
       
  1634 
       
  1635 If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
       
  1636 replace the "with...Texts." line with this:
       
  1637 
       
  1638     with the Invariant Sections being LIST THEIR TITLES, with the
       
  1639     Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST.
       
  1640 
       
  1641 If you have Invariant Sections without Cover Texts, or some other
       
  1642 combination of the three, merge those two alternatives to suit the
       
  1643 situation.
       
  1644 
       
  1645 If your document contains nontrivial examples of program code, we
       
  1646 recommend releasing these examples in parallel under your choice of
       
  1647 free software license, such as the GNU General Public License,
       
  1648 to permit their use in free software.
       
  1649