components/readline/readline.license
changeset 4609 c87d757fa091
parent 1389 90893e0cd2fb
equal deleted inserted replaced
4605:62d61ce27a05 4609:c87d757fa091
     1    GNU GENERAL PUBLIC LICENSE
     1 		    GNU GENERAL PUBLIC LICENSE
     2                        Version 2, June 1991
     2 		       Version 3, 29 June 2007
     3 
     3 
     4  Copyright (C) 1989, 1991 Free Software Foundation, Inc.
     4  Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
     5                        51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
       
     6  Everyone is permitted to copy and distribute verbatim copies
     5  Everyone is permitted to copy and distribute verbatim copies
     7  of this license document, but changing it is not allowed.
     6  of this license document, but changing it is not allowed.
     8 
     7 
     9                             Preamble
     8 			    Preamble
    10 
     9 
    11   The licenses for most software are designed to take away your
    10   The GNU General Public License is a free, copyleft license for
    12 freedom to share and change it.  By contrast, the GNU General Public
    11 software and other kinds of works.
    13 License is intended to guarantee your freedom to share and change free
    12 
    14 software--to make sure the software is free for all its users.  This
    13   The licenses for most software and other practical works are designed
    15 General Public License applies to most of the Free Software
    14 to take away your freedom to share and change the works.  By contrast,
    16 Foundation's software and to any other program whose authors commit to
    15 the GNU General Public License is intended to guarantee your freedom to
    17 using it.  (Some other Free Software Foundation software is covered by
    16 share and change all versions of a program--to make sure it remains free
    18 the GNU Library General Public License instead.)  You can apply it to
    17 software for all its users.  We, the Free Software Foundation, use the
       
    18 GNU General Public License for most of our software; it applies also to
       
    19 any other work released this way by its authors.  You can apply it to
    19 your programs, too.
    20 your programs, too.
    20 
    21 
    21   When we speak of free software, we are referring to freedom, not
    22   When we speak of free software, we are referring to freedom, not
    22 price.  Our General Public Licenses are designed to make sure that you
    23 price.  Our General Public Licenses are designed to make sure that you
    23 have the freedom to distribute copies of free software (and charge for
    24 have the freedom to distribute copies of free software (and charge for
    24 this service if you wish), that you receive source code or can get it
    25 them if you wish), that you receive source code or can get it if you
    25 if you want it, that you can change the software or use pieces of it
    26 want it, that you can change the software or use pieces of it in new
    26 in new free programs; and that you know you can do these things.
    27 free programs, and that you know you can do these things.
    27 
    28 
    28   To protect your rights, we need to make restrictions that forbid
    29   To protect your rights, we need to prevent others from denying you
    29 anyone to deny you these rights or to ask you to surrender the rights.
    30 these rights or asking you to surrender the rights.  Therefore, you have
    30 These restrictions translate to certain responsibilities for you if you
    31 certain responsibilities if you distribute copies of the software, or if
    31 distribute copies of the software, or if you modify it.
    32 you modify it: responsibilities to respect the freedom of others.
    32 
    33 
    33   For example, if you distribute copies of such a program, whether
    34   For example, if you distribute copies of such a program, whether
    34 gratis or for a fee, you must give the recipients all the rights that
    35 gratis or for a fee, you must pass on to the recipients the same
    35 you have.  You must make sure that they, too, receive or can get the
    36 freedoms that you received.  You must make sure that they, too, receive
    36 source code.  And you must show them these terms so they know their
    37 or can get the source code.  And you must show them these terms so they
    37 rights.
    38 know their rights.
    38 
    39 
    39   We protect your rights with two steps: (1) copyright the software, and
    40   Developers that use the GNU GPL protect your rights with two steps:
    40 (2) offer you this license which gives you legal permission to copy,
    41 (1) assert copyright on the software, and (2) offer you this License
    41 distribute and/or modify the software.
    42 giving you legal permission to copy, distribute and/or modify it.
    42 
    43 
    43   Also, for each author's protection and ours, we want to make certain
    44   For the developers' and authors' protection, the GPL clearly explains
    44 that everyone understands that there is no warranty for this free
    45 that there is no warranty for this free software.  For both users' and
    45 software.  If the software is modified by someone else and passed on, we
    46 authors' sake, the GPL requires that modified versions be marked as
    46 want its recipients to know that what they have is not the original, so
    47 changed, so that their problems will not be attributed erroneously to
    47 that any problems introduced by others will not reflect on the original
    48 authors of previous versions.
    48 authors' reputations.
    49 
    49 
    50   Some devices are designed to deny users access to install or run
    50   Finally, any free program is threatened constantly by software
    51 modified versions of the software inside them, although the manufacturer
    51 patents.  We wish to avoid the danger that redistributors of a free
    52 can do so.  This is fundamentally incompatible with the aim of
    52 program will individually obtain patent licenses, in effect making the
    53 protecting users' freedom to change the software.  The systematic
    53 program proprietary.  To prevent this, we have made it clear that any
    54 pattern of such abuse occurs in the area of products for individuals to
    54 patent must be licensed for everyone's free use or not licensed at all.
    55 use, which is precisely where it is most unacceptable.  Therefore, we
       
    56 have designed this version of the GPL to prohibit the practice for those
       
    57 products.  If such problems arise substantially in other domains, we
       
    58 stand ready to extend this provision to those domains in future versions
       
    59 of the GPL, as needed to protect the freedom of users.
       
    60 
       
    61   Finally, every program is threatened constantly by software patents.
       
    62 States should not allow patents to restrict development and use of
       
    63 software on general-purpose computers, but in those that do, we wish to
       
    64 avoid the special danger that patents applied to a free program could
       
    65 make it effectively proprietary.  To prevent this, the GPL assures that
       
    66 patents cannot be used to render the program non-free.
    55 
    67 
    56   The precise terms and conditions for copying, distribution and
    68   The precise terms and conditions for copying, distribution and
    57 modification follow.
    69 modification follow.
    58 
    70 
    59 
    71 		       TERMS AND CONDITIONS
    60                     GNU GENERAL PUBLIC LICENSE
    72 
    61    TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
    73   0. Definitions.
    62 
    74 
    63   0. This License applies to any program or other work which contains
    75   "This License" refers to version 3 of the GNU General Public License.
    64 a notice placed by the copyright holder saying it may be distributed
    76 
    65 under the terms of this General Public License.  The "Program", below,
    77   "Copyright" also means copyright-like laws that apply to other kinds of
    66 refers to any such program or work, and a "work based on the Program"
    78 works, such as semiconductor masks.
    67 means either the Program or any derivative work under copyright law:
    79  
    68 that is to say, a work containing the Program or a portion of it,
    80   "The Program" refers to any copyrightable work licensed under this
    69 either verbatim or with modifications and/or translated into another
    81 License.  Each licensee is addressed as "you".  "Licensees" and
    70 language.  (Hereinafter, translation is included without limitation in
    82 "recipients" may be individuals or organizations.
    71 the term "modification".)  Each licensee is addressed as "you".
    83 
    72 
    84   To "modify" a work means to copy from or adapt all or part of the work
    73 Activities other than copying, distribution and modification are not
    85 in a fashion requiring copyright permission, other than the making of an
    74 covered by this License; they are outside its scope.  The act of
    86 exact copy.  The resulting work is called a "modified version" of the
    75 running the Program is not restricted, and the output from the Program
    87 earlier work or a work "based on" the earlier work.
    76 is covered only if its contents constitute a work based on the
    88 
    77 Program (independent of having been made by running the Program).
    89   A "covered work" means either the unmodified Program or a work based
    78 Whether that is true depends on what the Program does.
    90 on the Program.
    79 
    91 
    80   1. You may copy and distribute verbatim copies of the Program's
    92   To "propagate" a work means to do anything with it that, without
    81 source code as you receive it, in any medium, provided that you
    93 permission, would make you directly or secondarily liable for
    82 conspicuously and appropriately publish on each copy an appropriate
    94 infringement under applicable copyright law, except executing it on a
    83 copyright notice and disclaimer of warranty; keep intact all the
    95 computer or modifying a private copy.  Propagation includes copying,
    84 notices that refer to this License and to the absence of any warranty;
    96 distribution (with or without modification), making available to the
    85 and give any other recipients of the Program a copy of this License
    97 public, and in some countries other activities as well.
    86 along with the Program.
    98 
    87 
    99   To "convey" a work means any kind of propagation that enables other
    88 You may charge a fee for the physical act of transferring a copy, and
   100 parties to make or receive copies.  Mere interaction with a user through
    89 you may at your option offer warranty protection in exchange for a fee.
   101 a computer network, with no transfer of a copy, is not conveying.
    90 
   102 
    91   2. You may modify your copy or copies of the Program or any portion
   103   An interactive user interface displays "Appropriate Legal Notices"
    92 of it, thus forming a work based on the Program, and copy and
   104 to the extent that it includes a convenient and prominently visible
    93 distribute such modifications or work under the terms of Section 1
   105 feature that (1) displays an appropriate copyright notice, and (2)
    94 above, provided that you also meet all of these conditions:
   106 tells the user that there is no warranty for the work (except to the
    95 
   107 extent that warranties are provided), that licensees may convey the
    96     a) You must cause the modified files to carry prominent notices
   108 work under this License, and how to view a copy of this License.  If
    97     stating that you changed the files and the date of any change.
   109 the interface presents a list of user commands or options, such as a
    98 
   110 menu, a prominent item in the list meets this criterion.
    99     b) You must cause any work that you distribute or publish, that in
   111 
   100     whole or in part contains or is derived from the Program or any
   112   1. Source Code.
   101     part thereof, to be licensed as a whole at no charge to all third
   113 
   102     parties under the terms of this License.
   114   The "source code" for a work means the preferred form of the work
   103 
   115 for making modifications to it.  "Object code" means any non-source
   104     c) If the modified program normally reads commands interactively
   116 form of a work.
   105     when run, you must cause it, when started running for such
   117 
   106     interactive use in the most ordinary way, to print or display an
   118   A "Standard Interface" means an interface that either is an official
   107     announcement including an appropriate copyright notice and a
   119 standard defined by a recognized standards body, or, in the case of
   108     notice that there is no warranty (or else, saying that you provide
   120 interfaces specified for a particular programming language, one that
   109     a warranty) and that users may redistribute the program under
   121 is widely used among developers working in that language.
   110     these conditions, and telling the user how to view a copy of this
   122 
   111     License.  (Exception: if the Program itself is interactive but
   123   The "System Libraries" of an executable work include anything, other
   112     does not normally print such an announcement, your work based on
   124 than the work as a whole, that (a) is included in the normal form of
   113     the Program is not required to print an announcement.)
   125 packaging a Major Component, but which is not part of that Major
   114 
   126 Component, and (b) serves only to enable use of the work with that
   115 
   127 Major Component, or to implement a Standard Interface for which an
   116 These requirements apply to the modified work as a whole.  If
   128 implementation is available to the public in source code form.  A
   117 identifiable sections of that work are not derived from the Program,
   129 "Major Component", in this context, means a major essential component
   118 and can be reasonably considered independent and separate works in
   130 (kernel, window system, and so on) of the specific operating system
   119 themselves, then this License, and its terms, do not apply to those
   131 (if any) on which the executable work runs, or a compiler used to
   120 sections when you distribute them as separate works.  But when you
   132 produce the work, or an object code interpreter used to run it.
   121 distribute the same sections as part of a whole which is a work based
   133 
   122 on the Program, the distribution of the whole must be on the terms of
   134   The "Corresponding Source" for a work in object code form means all
   123 this License, whose permissions for other licensees extend to the
   135 the source code needed to generate, install, and (for an executable
   124 entire whole, and thus to each and every part regardless of who wrote it.
   136 work) run the object code and to modify the work, including scripts to
   125 
   137 control those activities.  However, it does not include the work's
   126 Thus, it is not the intent of this section to claim rights or contest
   138 System Libraries, or general-purpose tools or generally available free
   127 your rights to work written entirely by you; rather, the intent is to
   139 programs which are used unmodified in performing those activities but
   128 exercise the right to control the distribution of derivative or
   140 which are not part of the work.  For example, Corresponding Source
   129 collective works based on the Program.
   141 includes interface definition files associated with source files for
   130 
   142 the work, and the source code for shared libraries and dynamically
   131 In addition, mere aggregation of another work not based on the Program
   143 linked subprograms that the work is specifically designed to require,
   132 with the Program (or with a work based on the Program) on a volume of
   144 such as by intimate data communication or control flow between those
   133 a storage or distribution medium does not bring the other work under
   145 subprograms and other parts of the work.
   134 the scope of this License.
   146 
   135 
   147   The Corresponding Source need not include anything that users
   136   3. You may copy and distribute the Program (or a work based on it,
   148 can regenerate automatically from other parts of the Corresponding
   137 under Section 2) in object code or executable form under the terms of
   149 Source.
   138 Sections 1 and 2 above provided that you also do one of the following:
   150 
   139 
   151   The Corresponding Source for a work in source code form is that
   140     a) Accompany it with the complete corresponding machine-readable
   152 same work.
   141     source code, which must be distributed under the terms of Sections
   153 
   142     1 and 2 above on a medium customarily used for software interchange; or,
   154   2. Basic Permissions.
   143 
   155 
   144     b) Accompany it with a written offer, valid for at least three
   156   All rights granted under this License are granted for the term of
   145     years, to give any third party, for a charge no more than your
   157 copyright on the Program, and are irrevocable provided the stated
   146     cost of physically performing source distribution, a complete
   158 conditions are met.  This License explicitly affirms your unlimited
   147     machine-readable copy of the corresponding source code, to be
   159 permission to run the unmodified Program.  The output from running a
   148     distributed under the terms of Sections 1 and 2 above on a medium
   160 covered work is covered by this License only if the output, given its
   149     customarily used for software interchange; or,
   161 content, constitutes a covered work.  This License acknowledges your
   150 
   162 rights of fair use or other equivalent, as provided by copyright law.
   151     c) Accompany it with the information you received as to the offer
   163 
   152     to distribute corresponding source code.  (This alternative is
   164   You may make, run and propagate covered works that you do not
   153     allowed only for noncommercial distribution and only if you
   165 convey, without conditions so long as your license otherwise remains
   154     received the program in object code or executable form with such
   166 in force.  You may convey covered works to others for the sole purpose
   155     an offer, in accord with Subsection b above.)
   167 of having them make modifications exclusively for you, or provide you
   156 
   168 with facilities for running those works, provided that you comply with
   157 The source code for a work means the preferred form of the work for
   169 the terms of this License in conveying all material for which you do
   158 making modifications to it.  For an executable work, complete source
   170 not control copyright.  Those thus making or running the covered works
   159 code means all the source code for all modules it contains, plus any
   171 for you must do so exclusively on your behalf, under your direction
   160 associated interface definition files, plus the scripts used to
   172 and control, on terms that prohibit them from making any copies of
   161 control compilation and installation of the executable.  However, as a
   173 your copyrighted material outside their relationship with you.
   162 special exception, the source code distributed need not include
   174 
   163 anything that is normally distributed (in either source or binary
   175   Conveying under any other circumstances is permitted solely under
   164 form) with the major components (compiler, kernel, and so on) of the
   176 the conditions stated below.  Sublicensing is not allowed; section 10
   165 operating system on which the executable runs, unless that component
   177 makes it unnecessary.
   166 itself accompanies the executable.
   178 
   167 
   179   3. Protecting Users' Legal Rights From Anti-Circumvention Law.
   168 If distribution of executable or object code is made by offering
   180 
   169 access to copy from a designated place, then offering equivalent
   181   No covered work shall be deemed part of an effective technological
   170 access to copy the source code from the same place counts as
   182 measure under any applicable law fulfilling obligations under article
   171 distribution of the source code, even though third parties are not
   183 11 of the WIPO copyright treaty adopted on 20 December 1996, or
   172 compelled to copy the source along with the object code.
   184 similar laws prohibiting or restricting circumvention of such
   173 
   185 measures.
   174 
   186 
   175   4. You may not copy, modify, sublicense, or distribute the Program
   187   When you convey a covered work, you waive any legal power to forbid
   176 except as expressly provided under this License.  Any attempt
   188 circumvention of technological measures to the extent such circumvention
   177 otherwise to copy, modify, sublicense or distribute the Program is
   189 is effected by exercising rights under this License with respect to
   178 void, and will automatically terminate your rights under this License.
   190 the covered work, and you disclaim any intention to limit operation or
   179 However, parties who have received copies, or rights, from you under
   191 modification of the work as a means of enforcing, against the work's
   180 this License will not have their licenses terminated so long as such
   192 users, your or third parties' legal rights to forbid circumvention of
   181 parties remain in full compliance.
   193 technological measures.
   182 
   194 
   183   5. You are not required to accept this License, since you have not
   195   4. Conveying Verbatim Copies.
   184 signed it.  However, nothing else grants you permission to modify or
   196 
   185 distribute the Program or its derivative works.  These actions are
   197   You may convey verbatim copies of the Program's source code as you
   186 prohibited by law if you do not accept this License.  Therefore, by
   198 receive it, in any medium, provided that you conspicuously and
   187 modifying or distributing the Program (or any work based on the
   199 appropriately publish on each copy an appropriate copyright notice;
   188 Program), you indicate your acceptance of this License to do so, and
   200 keep intact all notices stating that this License and any
   189 all its terms and conditions for copying, distributing or modifying
   201 non-permissive terms added in accord with section 7 apply to the code;
   190 the Program or works based on it.
   202 keep intact all notices of the absence of any warranty; and give all
   191 
   203 recipients a copy of this License along with the Program.
   192   6. Each time you redistribute the Program (or any work based on the
   204 
   193 Program), the recipient automatically receives a license from the
   205   You may charge any price or no price for each copy that you convey,
   194 original licensor to copy, distribute or modify the Program subject to
   206 and you may offer support or warranty protection for a fee.
   195 these terms and conditions.  You may not impose any further
   207 
   196 restrictions on the recipients' exercise of the rights granted herein.
   208   5. Conveying Modified Source Versions.
   197 You are not responsible for enforcing compliance by third parties to
   209 
       
   210   You may convey a work based on the Program, or the modifications to
       
   211 produce it from the Program, in the form of source code under the
       
   212 terms of section 4, provided that you also meet all of these conditions:
       
   213 
       
   214     a) The work must carry prominent notices stating that you modified
       
   215     it, and giving a relevant date.
       
   216 
       
   217     b) The work must carry prominent notices stating that it is
       
   218     released under this License and any conditions added under section
       
   219     7.  This requirement modifies the requirement in section 4 to
       
   220     "keep intact all notices".
       
   221 
       
   222     c) You must license the entire work, as a whole, under this
       
   223     License to anyone who comes into possession of a copy.  This
       
   224     License will therefore apply, along with any applicable section 7
       
   225     additional terms, to the whole of the work, and all its parts,
       
   226     regardless of how they are packaged.  This License gives no
       
   227     permission to license the work in any other way, but it does not
       
   228     invalidate such permission if you have separately received it.
       
   229 
       
   230     d) If the work has interactive user interfaces, each must display
       
   231     Appropriate Legal Notices; however, if the Program has interactive
       
   232     interfaces that do not display Appropriate Legal Notices, your
       
   233     work need not make them do so.
       
   234 
       
   235   A compilation of a covered work with other separate and independent
       
   236 works, which are not by their nature extensions of the covered work,
       
   237 and which are not combined with it such as to form a larger program,
       
   238 in or on a volume of a storage or distribution medium, is called an
       
   239 "aggregate" if the compilation and its resulting copyright are not
       
   240 used to limit the access or legal rights of the compilation's users
       
   241 beyond what the individual works permit.  Inclusion of a covered work
       
   242 in an aggregate does not cause this License to apply to the other
       
   243 parts of the aggregate.
       
   244 
       
   245   6. Conveying Non-Source Forms.
       
   246 
       
   247   You may convey a covered work in object code form under the terms
       
   248 of sections 4 and 5, provided that you also convey the
       
   249 machine-readable Corresponding Source under the terms of this License,
       
   250 in one of these ways:
       
   251 
       
   252     a) Convey the object code in, or embodied in, a physical product
       
   253     (including a physical distribution medium), accompanied by the
       
   254     Corresponding Source fixed on a durable physical medium
       
   255     customarily used for software interchange.
       
   256 
       
   257     b) Convey the object code in, or embodied in, a physical product
       
   258     (including a physical distribution medium), accompanied by a
       
   259     written offer, valid for at least three years and valid for as
       
   260     long as you offer spare parts or customer support for that product
       
   261     model, to give anyone who possesses the object code either (1) a
       
   262     copy of the Corresponding Source for all the software in the
       
   263     product that is covered by this License, on a durable physical
       
   264     medium customarily used for software interchange, for a price no
       
   265     more than your reasonable cost of physically performing this
       
   266     conveying of source, or (2) access to copy the
       
   267     Corresponding Source from a network server at no charge.
       
   268 
       
   269     c) Convey individual copies of the object code with a copy of the
       
   270     written offer to provide the Corresponding Source.  This
       
   271     alternative is allowed only occasionally and noncommercially, and
       
   272     only if you received the object code with such an offer, in accord
       
   273     with subsection 6b.
       
   274 
       
   275     d) Convey the object code by offering access from a designated
       
   276     place (gratis or for a charge), and offer equivalent access to the
       
   277     Corresponding Source in the same way through the same place at no
       
   278     further charge.  You need not require recipients to copy the
       
   279     Corresponding Source along with the object code.  If the place to
       
   280     copy the object code is a network server, the Corresponding Source
       
   281     may be on a different server (operated by you or a third party)
       
   282     that supports equivalent copying facilities, provided you maintain
       
   283     clear directions next to the object code saying where to find the
       
   284     Corresponding Source.  Regardless of what server hosts the
       
   285     Corresponding Source, you remain obligated to ensure that it is
       
   286     available for as long as needed to satisfy these requirements.
       
   287 
       
   288     e) Convey the object code using peer-to-peer transmission, provided
       
   289     you inform other peers where the object code and Corresponding
       
   290     Source of the work are being offered to the general public at no
       
   291     charge under subsection 6d.
       
   292 
       
   293   A separable portion of the object code, whose source code is excluded
       
   294 from the Corresponding Source as a System Library, need not be
       
   295 included in conveying the object code work.
       
   296 
       
   297   A "User Product" is either (1) a "consumer product", which means any
       
   298 tangible personal property which is normally used for personal, family,
       
   299 or household purposes, or (2) anything designed or sold for incorporation
       
   300 into a dwelling.  In determining whether a product is a consumer product,
       
   301 doubtful cases shall be resolved in favor of coverage.  For a particular
       
   302 product received by a particular user, "normally used" refers to a
       
   303 typical or common use of that class of product, regardless of the status
       
   304 of the particular user or of the way in which the particular user
       
   305 actually uses, or expects or is expected to use, the product.  A product
       
   306 is a consumer product regardless of whether the product has substantial
       
   307 commercial, industrial or non-consumer uses, unless such uses represent
       
   308 the only significant mode of use of the product.
       
   309 
       
   310   "Installation Information" for a User Product means any methods,
       
   311 procedures, authorization keys, or other information required to install
       
   312 and execute modified versions of a covered work in that User Product from
       
   313 a modified version of its Corresponding Source.  The information must
       
   314 suffice to ensure that the continued functioning of the modified object
       
   315 code is in no case prevented or interfered with solely because
       
   316 modification has been made.
       
   317 
       
   318   If you convey an object code work under this section in, or with, or
       
   319 specifically for use in, a User Product, and the conveying occurs as
       
   320 part of a transaction in which the right of possession and use of the
       
   321 User Product is transferred to the recipient in perpetuity or for a
       
   322 fixed term (regardless of how the transaction is characterized), the
       
   323 Corresponding Source conveyed under this section must be accompanied
       
   324 by the Installation Information.  But this requirement does not apply
       
   325 if neither you nor any third party retains the ability to install
       
   326 modified object code on the User Product (for example, the work has
       
   327 been installed in ROM).
       
   328 
       
   329   The requirement to provide Installation Information does not include a
       
   330 requirement to continue to provide support service, warranty, or updates
       
   331 for a work that has been modified or installed by the recipient, or for
       
   332 the User Product in which it has been modified or installed.  Access to a
       
   333 network may be denied when the modification itself materially and
       
   334 adversely affects the operation of the network or violates the rules and
       
   335 protocols for communication across the network.
       
   336 
       
   337   Corresponding Source conveyed, and Installation Information provided,
       
   338 in accord with this section must be in a format that is publicly
       
   339 documented (and with an implementation available to the public in
       
   340 source code form), and must require no special password or key for
       
   341 unpacking, reading or copying.
       
   342 
       
   343   7. Additional Terms.
       
   344 
       
   345   "Additional permissions" are terms that supplement the terms of this
       
   346 License by making exceptions from one or more of its conditions.
       
   347 Additional permissions that are applicable to the entire Program shall
       
   348 be treated as though they were included in this License, to the extent
       
   349 that they are valid under applicable law.  If additional permissions
       
   350 apply only to part of the Program, that part may be used separately
       
   351 under those permissions, but the entire Program remains governed by
       
   352 this License without regard to the additional permissions.
       
   353 
       
   354   When you convey a copy of a covered work, you may at your option
       
   355 remove any additional permissions from that copy, or from any part of
       
   356 it.  (Additional permissions may be written to require their own
       
   357 removal in certain cases when you modify the work.)  You may place
       
   358 additional permissions on material, added by you to a covered work,
       
   359 for which you have or can give appropriate copyright permission.
       
   360 
       
   361   Notwithstanding any other provision of this License, for material you
       
   362 add to a covered work, you may (if authorized by the copyright holders of
       
   363 that material) supplement the terms of this License with terms:
       
   364 
       
   365     a) Disclaiming warranty or limiting liability differently from the
       
   366     terms of sections 15 and 16 of this License; or
       
   367 
       
   368     b) Requiring preservation of specified reasonable legal notices or
       
   369     author attributions in that material or in the Appropriate Legal
       
   370     Notices displayed by works containing it; or
       
   371 
       
   372     c) Prohibiting misrepresentation of the origin of that material, or
       
   373     requiring that modified versions of such material be marked in
       
   374     reasonable ways as different from the original version; or
       
   375 
       
   376     d) Limiting the use for publicity purposes of names of licensors or
       
   377     authors of the material; or
       
   378 
       
   379     e) Declining to grant rights under trademark law for use of some
       
   380     trade names, trademarks, or service marks; or
       
   381 
       
   382     f) Requiring indemnification of licensors and authors of that
       
   383     material by anyone who conveys the material (or modified versions of
       
   384     it) with contractual assumptions of liability to the recipient, for
       
   385     any liability that these contractual assumptions directly impose on
       
   386     those licensors and authors.
       
   387 
       
   388   All other non-permissive additional terms are considered "further
       
   389 restrictions" within the meaning of section 10.  If the Program as you
       
   390 received it, or any part of it, contains a notice stating that it is
       
   391 governed by this License along with a term that is a further
       
   392 restriction, you may remove that term.  If a license document contains
       
   393 a further restriction but permits relicensing or conveying under this
       
   394 License, you may add to a covered work material governed by the terms
       
   395 of that license document, provided that the further restriction does
       
   396 not survive such relicensing or conveying.
       
   397 
       
   398   If you add terms to a covered work in accord with this section, you
       
   399 must place, in the relevant source files, a statement of the
       
   400 additional terms that apply to those files, or a notice indicating
       
   401 where to find the applicable terms.
       
   402 
       
   403   Additional terms, permissive or non-permissive, may be stated in the
       
   404 form of a separately written license, or stated as exceptions;
       
   405 the above requirements apply either way.
       
   406 
       
   407   8. Termination.
       
   408 
       
   409   You may not propagate or modify a covered work except as expressly
       
   410 provided under this License.  Any attempt otherwise to propagate or
       
   411 modify it is void, and will automatically terminate your rights under
       
   412 this License (including any patent licenses granted under the third
       
   413 paragraph of section 11).
       
   414 
       
   415   However, if you cease all violation of this License, then your
       
   416 license from a particular copyright holder is reinstated (a)
       
   417 provisionally, unless and until the copyright holder explicitly and
       
   418 finally terminates your license, and (b) permanently, if the copyright
       
   419 holder fails to notify you of the violation by some reasonable means
       
   420 prior to 60 days after the cessation.
       
   421 
       
   422   Moreover, your license from a particular copyright holder is
       
   423 reinstated permanently if the copyright holder notifies you of the
       
   424 violation by some reasonable means, this is the first time you have
       
   425 received notice of violation of this License (for any work) from that
       
   426 copyright holder, and you cure the violation prior to 30 days after
       
   427 your receipt of the notice.
       
   428 
       
   429   Termination of your rights under this section does not terminate the
       
   430 licenses of parties who have received copies or rights from you under
       
   431 this License.  If your rights have been terminated and not permanently
       
   432 reinstated, you do not qualify to receive new licenses for the same
       
   433 material under section 10.
       
   434 
       
   435   9. Acceptance Not Required for Having Copies.
       
   436 
       
   437   You are not required to accept this License in order to receive or
       
   438 run a copy of the Program.  Ancillary propagation of a covered work
       
   439 occurring solely as a consequence of using peer-to-peer transmission
       
   440 to receive a copy likewise does not require acceptance.  However,
       
   441 nothing other than this License grants you permission to propagate or
       
   442 modify any covered work.  These actions infringe copyright if you do
       
   443 not accept this License.  Therefore, by modifying or propagating a
       
   444 covered work, you indicate your acceptance of this License to do so.
       
   445 
       
   446   10. Automatic Licensing of Downstream Recipients.
       
   447 
       
   448   Each time you convey a covered work, the recipient automatically
       
   449 receives a license from the original licensors, to run, modify and
       
   450 propagate that work, subject to this License.  You are not responsible
       
   451 for enforcing compliance by third parties with this License.
       
   452 
       
   453   An "entity transaction" is a transaction transferring control of an
       
   454 organization, or substantially all assets of one, or subdividing an
       
   455 organization, or merging organizations.  If propagation of a covered
       
   456 work results from an entity transaction, each party to that
       
   457 transaction who receives a copy of the work also receives whatever
       
   458 licenses to the work the party's predecessor in interest had or could
       
   459 give under the previous paragraph, plus a right to possession of the
       
   460 Corresponding Source of the work from the predecessor in interest, if
       
   461 the predecessor has it or can get it with reasonable efforts.
       
   462 
       
   463   You may not impose any further restrictions on the exercise of the
       
   464 rights granted or affirmed under this License.  For example, you may
       
   465 not impose a license fee, royalty, or other charge for exercise of
       
   466 rights granted under this License, and you may not initiate litigation
       
   467 (including a cross-claim or counterclaim in a lawsuit) alleging that
       
   468 any patent claim is infringed by making, using, selling, offering for
       
   469 sale, or importing the Program or any portion of it.
       
   470 
       
   471   11. Patents.
       
   472 
       
   473   A "contributor" is a copyright holder who authorizes use under this
       
   474 License of the Program or a work on which the Program is based.  The
       
   475 work thus licensed is called the contributor's "contributor version".
       
   476 
       
   477   A contributor's "essential patent claims" are all patent claims
       
   478 owned or controlled by the contributor, whether already acquired or
       
   479 hereafter acquired, that would be infringed by some manner, permitted
       
   480 by this License, of making, using, or selling its contributor version,
       
   481 but do not include claims that would be infringed only as a
       
   482 consequence of further modification of the contributor version.  For
       
   483 purposes of this definition, "control" includes the right to grant
       
   484 patent sublicenses in a manner consistent with the requirements of
   198 this License.
   485 this License.
   199 
   486 
   200   7. If, as a consequence of a court judgment or allegation of patent
   487   Each contributor grants you a non-exclusive, worldwide, royalty-free
   201 infringement or for any other reason (not limited to patent issues),
   488 patent license under the contributor's essential patent claims, to
   202 conditions are imposed on you (whether by court order, agreement or
   489 make, use, sell, offer for sale, import and otherwise run, modify and
       
   490 propagate the contents of its contributor version.
       
   491 
       
   492   In the following three paragraphs, a "patent license" is any express
       
   493 agreement or commitment, however denominated, not to enforce a patent
       
   494 (such as an express permission to practice a patent or covenant not to
       
   495 sue for patent infringement).  To "grant" such a patent license to a
       
   496 party means to make such an agreement or commitment not to enforce a
       
   497 patent against the party.
       
   498 
       
   499   If you convey a covered work, knowingly relying on a patent license,
       
   500 and the Corresponding Source of the work is not available for anyone
       
   501 to copy, free of charge and under the terms of this License, through a
       
   502 publicly available network server or other readily accessible means,
       
   503 then you must either (1) cause the Corresponding Source to be so
       
   504 available, or (2) arrange to deprive yourself of the benefit of the
       
   505 patent license for this particular work, or (3) arrange, in a manner
       
   506 consistent with the requirements of this License, to extend the patent
       
   507 license to downstream recipients.  "Knowingly relying" means you have
       
   508 actual knowledge that, but for the patent license, your conveying the
       
   509 covered work in a country, or your recipient's use of the covered work
       
   510 in a country, would infringe one or more identifiable patents in that
       
   511 country that you have reason to believe are valid.
       
   512   
       
   513   If, pursuant to or in connection with a single transaction or
       
   514 arrangement, you convey, or propagate by procuring conveyance of, a
       
   515 covered work, and grant a patent license to some of the parties
       
   516 receiving the covered work authorizing them to use, propagate, modify
       
   517 or convey a specific copy of the covered work, then the patent license
       
   518 you grant is automatically extended to all recipients of the covered
       
   519 work and works based on it.
       
   520 
       
   521   A patent license is "discriminatory" if it does not include within
       
   522 the scope of its coverage, prohibits the exercise of, or is
       
   523 conditioned on the non-exercise of one or more of the rights that are
       
   524 specifically granted under this License.  You may not convey a covered
       
   525 work if you are a party to an arrangement with a third party that is
       
   526 in the business of distributing software, under which you make payment
       
   527 to the third party based on the extent of your activity of conveying
       
   528 the work, and under which the third party grants, to any of the
       
   529 parties who would receive the covered work from you, a discriminatory
       
   530 patent license (a) in connection with copies of the covered work
       
   531 conveyed by you (or copies made from those copies), or (b) primarily
       
   532 for and in connection with specific products or compilations that
       
   533 contain the covered work, unless you entered into that arrangement,
       
   534 or that patent license was granted, prior to 28 March 2007.
       
   535 
       
   536   Nothing in this License shall be construed as excluding or limiting
       
   537 any implied license or other defenses to infringement that may
       
   538 otherwise be available to you under applicable patent law.
       
   539 
       
   540   12. No Surrender of Others' Freedom.
       
   541 
       
   542   If conditions are imposed on you (whether by court order, agreement or
   203 otherwise) that contradict the conditions of this License, they do not
   543 otherwise) that contradict the conditions of this License, they do not
   204 excuse you from the conditions of this License.  If you cannot
   544 excuse you from the conditions of this License.  If you cannot convey a
   205 distribute so as to satisfy simultaneously your obligations under this
   545 covered work so as to satisfy simultaneously your obligations under this
   206 License and any other pertinent obligations, then as a consequence you
   546 License and any other pertinent obligations, then as a consequence you may
   207 may not distribute the Program at all.  For example, if a patent
   547 not convey it at all.  For example, if you agree to terms that obligate you
   208 license would not permit royalty-free redistribution of the Program by
   548 to collect a royalty for further conveying from those to whom you convey
   209 all those who receive copies directly or indirectly through you, then
   549 the Program, the only way you could satisfy both those terms and this
   210 the only way you could satisfy both it and this License would be to
   550 License would be to refrain entirely from conveying the Program.
   211 refrain entirely from distribution of the Program.
   551 
   212 
   552   13. Use with the GNU Affero General Public License.
   213 If any portion of this section is held invalid or unenforceable under
   553 
   214 any particular circumstance, the balance of the section is intended to
   554   Notwithstanding any other provision of this License, you have
   215 apply and the section as a whole is intended to apply in other
   555 permission to link or combine any covered work with a work licensed
   216 circumstances.
   556 under version 3 of the GNU Affero General Public License into a single
   217 
   557 combined work, and to convey the resulting work.  The terms of this
   218 It is not the purpose of this section to induce you to infringe any
   558 License will continue to apply to the part which is the covered work,
   219 patents or other property right claims or to contest validity of any
   559 but the special requirements of the GNU Affero General Public License,
   220 such claims; this section has the sole purpose of protecting the
   560 section 13, concerning interaction through a network will apply to the
   221 integrity of the free software distribution system, which is
   561 combination as such.
   222 implemented by public license practices.  Many people have made
   562 
   223 generous contributions to the wide range of software distributed
   563   14. Revised Versions of this License.
   224 through that system in reliance on consistent application of that
   564 
   225 system; it is up to the author/donor to decide if he or she is willing
   565   The Free Software Foundation may publish revised and/or new versions of
   226 to distribute software through any other system and a licensee cannot
   566 the GNU General Public License from time to time.  Such new versions will
   227 impose that choice.
       
   228 
       
   229 This section is intended to make thoroughly clear what is believed to
       
   230 be a consequence of the rest of this License.
       
   231 
       
   232 
       
   233   8. If the distribution and/or use of the Program is restricted in
       
   234 certain countries either by patents or by copyrighted interfaces, the
       
   235 original copyright holder who places the Program under this License
       
   236 may add an explicit geographical distribution limitation excluding
       
   237 those countries, so that distribution is permitted only in or among
       
   238 countries not thus excluded.  In such case, this License incorporates
       
   239 the limitation as if written in the body of this License.
       
   240 
       
   241   9. The Free Software Foundation may publish revised and/or new versions
       
   242 of the General Public License from time to time.  Such new versions will
       
   243 be similar in spirit to the present version, but may differ in detail to
   567 be similar in spirit to the present version, but may differ in detail to
   244 address new problems or concerns.
   568 address new problems or concerns.
   245 
   569 
   246 Each version is given a distinguishing version number.  If the Program
   570   Each version is given a distinguishing version number.  If the
   247 specifies a version number of this License which applies to it and "any
   571 Program specifies that a certain numbered version of the GNU General
   248 later version", you have the option of following the terms and conditions
   572 Public License "or any later version" applies to it, you have the
   249 either of that version or of any later version published by the Free
   573 option of following the terms and conditions either of that numbered
   250 Software Foundation.  If the Program does not specify a version number of
   574 version or of any later version published by the Free Software
   251 this License, you may choose any version ever published by the Free Software
   575 Foundation.  If the Program does not specify a version number of the
   252 Foundation.
   576 GNU General Public License, you may choose any version ever published
   253 
   577 by the Free Software Foundation.
   254   10. If you wish to incorporate parts of the Program into other free
   578 
   255 programs whose distribution conditions are different, write to the author
   579   If the Program specifies that a proxy can decide which future
   256 to ask for permission.  For software which is copyrighted by the Free
   580 versions of the GNU General Public License can be used, that proxy's
   257 Software Foundation, write to the Free Software Foundation; we sometimes
   581 public statement of acceptance of a version permanently authorizes you
   258 make exceptions for this.  Our decision will be guided by the two goals
   582 to choose that version for the Program.
   259 of preserving the free status of all derivatives of our free software and
   583 
   260 of promoting the sharing and reuse of software generally.
   584   Later license versions may give you additional or different
   261 
   585 permissions.  However, no additional obligations are imposed on any
   262                             NO WARRANTY
   586 author or copyright holder as a result of your choosing to follow a
   263 
   587 later version.
   264   11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
   588 
   265 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
   589   15. Disclaimer of Warranty.
   266 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
   590 
   267 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
   591   THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
   268 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
   592 APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
   269 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
   593 HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
   270 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
   594 OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
   271 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
   595 THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   272 REPAIR OR CORRECTION.
   596 PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
   273 
   597 IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
   274   12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
   598 ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
   275 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
   599 
   276 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
   600   16. Limitation of Liability.
   277 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
   601 
   278 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
   602   IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
   279 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
   603 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
   280 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
   604 THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
   281 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
   605 GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
   282 POSSIBILITY OF SUCH DAMAGES.
   606 USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
   283 
   607 DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
   284                      END OF TERMS AND CONDITIONS
   608 PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
   285 
   609 EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
   286 
   610 SUCH DAMAGES.
   287             How to Apply These Terms to Your New Programs
   611 
       
   612   17. Interpretation of Sections 15 and 16.
       
   613 
       
   614   If the disclaimer of warranty and limitation of liability provided
       
   615 above cannot be given local legal effect according to their terms,
       
   616 reviewing courts shall apply local law that most closely approximates
       
   617 an absolute waiver of all civil liability in connection with the
       
   618 Program, unless a warranty or assumption of liability accompanies a
       
   619 copy of the Program in return for a fee.
       
   620 
       
   621 		     END OF TERMS AND CONDITIONS
       
   622 
       
   623 	    How to Apply These Terms to Your New Programs
   288 
   624 
   289   If you develop a new program, and you want it to be of the greatest
   625   If you develop a new program, and you want it to be of the greatest
   290 possible use to the public, the best way to achieve this is to make it
   626 possible use to the public, the best way to achieve this is to make it
   291 free software which everyone can redistribute and change under these terms.
   627 free software which everyone can redistribute and change under these terms.
   292 
   628 
   293   To do so, attach the following notices to the program.  It is safest
   629   To do so, attach the following notices to the program.  It is safest
   294 to attach them to the start of each source file to most effectively
   630 to attach them to the start of each source file to most effectively
   295 convey the exclusion of warranty; and each file should have at least
   631 state the exclusion of warranty; and each file should have at least
   296 the "copyright" line and a pointer to where the full notice is found.
   632 the "copyright" line and a pointer to where the full notice is found.
   297 
   633 
   298     <one line to give the program's name and a brief idea of what it does.>
   634     <one line to give the program's name and a brief idea of what it does.>
   299     Copyright (C) <year>  <name of author>
   635     Copyright (C) <year>  <name of author>
   300 
   636 
   301     This program is free software; you can redistribute it and/or modify
   637     This program is free software: you can redistribute it and/or modify
   302     it under the terms of the GNU General Public License as published by
   638     it under the terms of the GNU General Public License as published by
   303     the Free Software Foundation; either version 2 of the License, or
   639     the Free Software Foundation, either version 3 of the License, or
   304     (at your option) any later version.
   640     (at your option) any later version.
   305 
   641 
   306     This program is distributed in the hope that it will be useful,
   642     This program is distributed in the hope that it will be useful,
   307     but WITHOUT ANY WARRANTY; without even the implied warranty of
   643     but WITHOUT ANY WARRANTY; without even the implied warranty of
   308     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   644     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   309     GNU General Public License for more details.
   645     GNU General Public License for more details.
   310 
   646 
   311     You should have received a copy of the GNU General Public License
   647     You should have received a copy of the GNU General Public License
   312     along with this program; if not, write to the Free Software
   648     along with this program.  If not, see <http://www.gnu.org/licenses/>.
   313     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
       
   314 
       
   315 
   649 
   316 Also add information on how to contact you by electronic and paper mail.
   650 Also add information on how to contact you by electronic and paper mail.
   317 
   651 
   318 If the program is interactive, make it output a short notice like this
   652   If the program does terminal interaction, make it output a short
   319 when it starts in an interactive mode:
   653 notice like this when it starts in an interactive mode:
   320 
   654 
   321     Gnomovision version 69, Copyright (C) year name of author
   655     <program>  Copyright (C) <year>  <name of author>
   322     Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
   656     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
   323     This is free software, and you are welcome to redistribute it
   657     This is free software, and you are welcome to redistribute it
   324     under certain conditions; type `show c' for details.
   658     under certain conditions; type `show c' for details.
   325 
   659 
   326 The hypothetical commands `show w' and `show c' should show the appropriate
   660 The hypothetical commands `show w' and `show c' should show the appropriate
   327 parts of the General Public License.  Of course, the commands you use may
   661 parts of the General Public License.  Of course, your program's commands
   328 be called something other than `show w' and `show c'; they could even be
   662 might be different; for a GUI interface, you would use an "about box".
   329 mouse-clicks or menu items--whatever suits your program.
   663 
   330 
   664   You should also get your employer (if you work as a programmer) or school,
   331 You should also get your employer (if you work as a programmer) or your
   665 if any, to sign a "copyright disclaimer" for the program, if necessary.
   332 school, if any, to sign a "copyright disclaimer" for the program, if
   666 For more information on this, and how to apply and follow the GNU GPL, see
   333 necessary.  Here is a sample; alter the names:
   667 <http://www.gnu.org/licenses/>.
   334 
   668 
   335   Yoyodyne, Inc., hereby disclaims all copyright interest in the program
   669   The GNU General Public License does not permit incorporating your program
   336   `Gnomovision' (which makes passes at compilers) written by James Hacker.
   670 into proprietary programs.  If your program is a subroutine library, you
   337 
   671 may consider it more useful to permit linking proprietary applications with
   338   <signature of Ty Coon>, 1 April 1989
   672 the library.  If this is what you want to do, use the GNU Lesser General
   339   Ty Coon, President of Vice
   673 Public License instead of this License.  But first, please read
   340 
   674 <http://www.gnu.org/philosophy/why-not-lgpl.html>.
   341 This General Public License does not permit incorporating your program into
   675 
   342 proprietary programs.  If your program is a subroutine library, you may
   676 -----------------------------------------------------------------------------
   343 consider it more useful to permit linking proprietary applications with the
       
   344 library.  If this is what you want to do, use the GNU Library General
       
   345 Public License instead of this License.
       
   346 
       
   347 Copy of GNU Free Documentation License, Version 1.2
       
   348 
   677 
   349                 GNU Free Documentation License
   678                 GNU Free Documentation License
   350                   Version 1.2, November 2002
   679                  Version 1.3, 3 November 2008
   351 
   680 
   352 
   681 
   353  Copyright (C) 2000,2001,2002  Free Software Foundation, Inc.
   682  Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
   354      51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
   683      <http://fsf.org/>
   355  Everyone is permitted to copy and distribute verbatim copies
   684  Everyone is permitted to copy and distribute verbatim copies
   356  of this license document, but changing it is not allowed.
   685  of this license document, but changing it is not allowed.
   357 
       
   358 
   686 
   359 0. PREAMBLE
   687 0. PREAMBLE
   360 
   688 
   361 The purpose of this License is to make a manual, textbook, or other
   689 The purpose of this License is to make a manual, textbook, or other
   362 functional and useful document "free" in the sense of freedom: to
   690 functional and useful document "free" in the sense of freedom: to
   396 Document or a portion of it, either copied verbatim, or with
   724 Document or a portion of it, either copied verbatim, or with
   397 modifications and/or translated into another language.
   725 modifications and/or translated into another language.
   398 
   726 
   399 A "Secondary Section" is a named appendix or a front-matter section of
   727 A "Secondary Section" is a named appendix or a front-matter section of
   400 the Document that deals exclusively with the relationship of the
   728 the Document that deals exclusively with the relationship of the
   401 publishers or authors of the Document to the Document's overall subject
   729 publishers or authors of the Document to the Document's overall
   402 (or to related matters) and contains nothing that could fall directly
   730 subject (or to related matters) and contains nothing that could fall
   403 within that overall subject.  (Thus, if the Document is in part a
   731 directly within that overall subject.  (Thus, if the Document is in
   404 textbook of mathematics, a Secondary Section may not explain any
   732 part a textbook of mathematics, a Secondary Section may not explain
   405 mathematics.)  The relationship could be a matter of historical
   733 any mathematics.)  The relationship could be a matter of historical
   406 connection with the subject or with related matters, or of legal,
   734 connection with the subject or with related matters, or of legal,
   407 commercial, philosophical, ethical or political position regarding
   735 commercial, philosophical, ethical or political position regarding
   408 them.
   736 them.
   409 
   737 
   410 The "Invariant Sections" are certain Secondary Sections whose titles
   738 The "Invariant Sections" are certain Secondary Sections whose titles
   449 this License requires to appear in the title page.  For works in
   777 this License requires to appear in the title page.  For works in
   450 formats which do not have any title page as such, "Title Page" means
   778 formats which do not have any title page as such, "Title Page" means
   451 the text near the most prominent appearance of the work's title,
   779 the text near the most prominent appearance of the work's title,
   452 preceding the beginning of the body of the text.
   780 preceding the beginning of the body of the text.
   453 
   781 
       
   782 The "publisher" means any person or entity that distributes copies of
       
   783 the Document to the public.
       
   784 
   454 A section "Entitled XYZ" means a named subunit of the Document whose
   785 A section "Entitled XYZ" means a named subunit of the Document whose
   455 title either is precisely XYZ or contains XYZ in parentheses following
   786 title either is precisely XYZ or contains XYZ in parentheses following
   456 text that translates XYZ in another language.  (Here XYZ stands for a
   787 text that translates XYZ in another language.  (Here XYZ stands for a
   457 specific section name mentioned below, such as "Acknowledgements",
   788 specific section name mentioned below, such as "Acknowledgements",
   458 "Dedications", "Endorsements", or "History".)  To "Preserve the Title"
   789 "Dedications", "Endorsements", or "History".)  To "Preserve the Title"
   464 Disclaimers are considered to be included by reference in this
   795 Disclaimers are considered to be included by reference in this
   465 License, but only as regards disclaiming warranties: any other
   796 License, but only as regards disclaiming warranties: any other
   466 implication that these Warranty Disclaimers may have is void and has
   797 implication that these Warranty Disclaimers may have is void and has
   467 no effect on the meaning of this License.
   798 no effect on the meaning of this License.
   468 
   799 
   469 
       
   470 2. VERBATIM COPYING
   800 2. VERBATIM COPYING
   471 
   801 
   472 You may copy and distribute the Document in any medium, either
   802 You may copy and distribute the Document in any medium, either
   473 commercially or noncommercially, provided that this License, the
   803 commercially or noncommercially, provided that this License, the
   474 copyright notices, and the license notice saying this License applies
   804 copyright notices, and the license notice saying this License applies
   475 to the Document are reproduced in all copies, and that you add no other
   805 to the Document are reproduced in all copies, and that you add no
   476 conditions whatsoever to those of this License.  You may not use
   806 other conditions whatsoever to those of this License.  You may not use
   477 technical measures to obstruct or control the reading or further
   807 technical measures to obstruct or control the reading or further
   478 copying of the copies you make or distribute.  However, you may accept
   808 copying of the copies you make or distribute.  However, you may accept
   479 compensation in exchange for copies.  If you distribute a large enough
   809 compensation in exchange for copies.  If you distribute a large enough
   480 number of copies you must also follow the conditions in section 3.
   810 number of copies you must also follow the conditions in section 3.
   481 
   811 
   515 location until at least one year after the last time you distribute an
   845 location until at least one year after the last time you distribute an
   516 Opaque copy (directly or through your agents or retailers) of that
   846 Opaque copy (directly or through your agents or retailers) of that
   517 edition to the public.
   847 edition to the public.
   518 
   848 
   519 It is requested, but not required, that you contact the authors of the
   849 It is requested, but not required, that you contact the authors of the
   520 Document well before redistributing any large number of copies, to give
   850 Document well before redistributing any large number of copies, to
   521 them a chance to provide you with an updated version of the Document.
   851 give them a chance to provide you with an updated version of the
       
   852 Document.
   522 
   853 
   523 
   854 
   524 4. MODIFICATIONS
   855 4. MODIFICATIONS
   525 
   856 
   526 You may copy and distribute a Modified Version of the Document under
   857 You may copy and distribute a Modified Version of the Document under
   631 Entitled "Endorsements".
   962 Entitled "Endorsements".
   632 
   963 
   633 
   964 
   634 6. COLLECTIONS OF DOCUMENTS
   965 6. COLLECTIONS OF DOCUMENTS
   635 
   966 
   636 You may make a collection consisting of the Document and other documents
   967 You may make a collection consisting of the Document and other
   637 released under this License, and replace the individual copies of this
   968 documents released under this License, and replace the individual
   638 License in the various documents with a single copy that is included in
   969 copies of this License in the various documents with a single copy
   639 the collection, provided that you follow the rules of this License for
   970 that is included in the collection, provided that you follow the rules
   640 verbatim copying of each of the documents in all other respects.
   971 of this License for verbatim copying of each of the documents in all
   641 
   972 other respects.
   642 You may extract a single document from such a collection, and distribute
   973 
   643 it individually under this License, provided you insert a copy of this
   974 You may extract a single document from such a collection, and
   644 License into the extracted document, and follow this License in all
   975 distribute it individually under this License, provided you insert a
   645 other respects regarding verbatim copying of that document.
   976 copy of this License into the extracted document, and follow this
       
   977 License in all other respects regarding verbatim copying of that
       
   978 document.
   646 
   979 
   647 
   980 
   648 7. AGGREGATION WITH INDEPENDENT WORKS
   981 7. AGGREGATION WITH INDEPENDENT WORKS
   649 
   982 
   650 A compilation of the Document or its derivatives with other separate
   983 A compilation of the Document or its derivatives with other separate
   686 title.
  1019 title.
   687 
  1020 
   688 
  1021 
   689 9. TERMINATION
  1022 9. TERMINATION
   690 
  1023 
   691 You may not copy, modify, sublicense, or distribute the Document except
  1024 You may not copy, modify, sublicense, or distribute the Document
   692 as expressly provided for under this License.  Any other attempt to
  1025 except as expressly provided under this License.  Any attempt
   693 copy, modify, sublicense or distribute the Document is void, and will
  1026 otherwise to copy, modify, sublicense, or distribute it is void, and
   694 automatically terminate your rights under this License.  However,
  1027 will automatically terminate your rights under this License.
   695 parties who have received copies, or rights, from you under this
  1028 
   696 License will not have their licenses terminated so long as such
  1029 However, if you cease all violation of this License, then your license
   697 parties remain in full compliance.
  1030 from a particular copyright holder is reinstated (a) provisionally,
       
  1031 unless and until the copyright holder explicitly and finally
       
  1032 terminates your license, and (b) permanently, if the copyright holder
       
  1033 fails to notify you of the violation by some reasonable means prior to
       
  1034 60 days after the cessation.
       
  1035 
       
  1036 Moreover, your license from a particular copyright holder is
       
  1037 reinstated permanently if the copyright holder notifies you of the
       
  1038 violation by some reasonable means, this is the first time you have
       
  1039 received notice of violation of this License (for any work) from that
       
  1040 copyright holder, and you cure the violation prior to 30 days after
       
  1041 your receipt of the notice.
       
  1042 
       
  1043 Termination of your rights under this section does not terminate the
       
  1044 licenses of parties who have received copies or rights from you under
       
  1045 this License.  If your rights have been terminated and not permanently
       
  1046 reinstated, receipt of a copy of some or all of the same material does
       
  1047 not give you any rights to use it.
   698 
  1048 
   699 
  1049 
   700 10. FUTURE REVISIONS OF THIS LICENSE
  1050 10. FUTURE REVISIONS OF THIS LICENSE
   701 
  1051 
   702 The Free Software Foundation may publish new, revised versions
  1052 The Free Software Foundation may publish new, revised versions of the
   703 of the GNU Free Documentation License from time to time.  Such new
  1053 GNU Free Documentation License from time to time.  Such new versions
   704 versions will be similar in spirit to the present version, but may
  1054 will be similar in spirit to the present version, but may differ in
   705 differ in detail to address new problems or concerns.  See
  1055 detail to address new problems or concerns.  See
   706 http://www.gnu.org/copyleft/.
  1056 http://www.gnu.org/copyleft/.
   707 
  1057 
   708 Each version of the License is given a distinguishing version number.
  1058 Each version of the License is given a distinguishing version number.
   709 If the Document specifies that a particular numbered version of this
  1059 If the Document specifies that a particular numbered version of this
   710 License "or any later version" applies to it, you have the option of
  1060 License "or any later version" applies to it, you have the option of
   711 following the terms and conditions either of that specified version or
  1061 following the terms and conditions either of that specified version or
   712 of any later version that has been published (not as a draft) by the
  1062 of any later version that has been published (not as a draft) by the
   713 Free Software Foundation.  If the Document does not specify a version
  1063 Free Software Foundation.  If the Document does not specify a version
   714 number of this License, you may choose any version ever published (not
  1064 number of this License, you may choose any version ever published (not
   715 as a draft) by the Free Software Foundation.
  1065 as a draft) by the Free Software Foundation.  If the Document
       
  1066 specifies that a proxy can decide which future versions of this
       
  1067 License can be used, that proxy's public statement of acceptance of a
       
  1068 version permanently authorizes you to choose that version for the
       
  1069 Document.
       
  1070 
       
  1071 11. RELICENSING
       
  1072 
       
  1073 "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       
  1074 World Wide Web server that publishes copyrightable works and also
       
  1075 provides prominent facilities for anybody to edit those works.  A
       
  1076 public wiki that anybody can edit is an example of such a server.  A
       
  1077 "Massive Multiauthor Collaboration" (or "MMC") contained in the site
       
  1078 means any set of copyrightable works thus published on the MMC site.
       
  1079 
       
  1080 "CC-BY-SA" means the Creative Commons Attribution-Share Alike 3.0 
       
  1081 license published by Creative Commons Corporation, a not-for-profit 
       
  1082 corporation with a principal place of business in San Francisco, 
       
  1083 California, as well as future copyleft versions of that license 
       
  1084 published by that same organization.
       
  1085 
       
  1086 "Incorporate" means to publish or republish a Document, in whole or in 
       
  1087 part, as part of another Document.
       
  1088 
       
  1089 An MMC is "eligible for relicensing" if it is licensed under this 
       
  1090 License, and if all works that were first published under this License 
       
  1091 somewhere other than this MMC, and subsequently incorporated in whole or 
       
  1092 in part into the MMC, (1) had no cover texts or invariant sections, and 
       
  1093 (2) were thus incorporated prior to November 1, 2008.
       
  1094 
       
  1095 The operator of an MMC Site may republish an MMC contained in the site
       
  1096 under CC-BY-SA on the same site at any time before August 1, 2009,
       
  1097 provided the MMC is eligible for relicensing.
   716 
  1098 
   717 
  1099 
   718 ADDENDUM: How to use this License for your documents
  1100 ADDENDUM: How to use this License for your documents
   719 
  1101 
   720 To use this License in a document you have written, include a copy of
  1102 To use this License in a document you have written, include a copy of
   721 the License in the document and put the following copyright and
  1103 the License in the document and put the following copyright and
   722 license notices just after the title page:
  1104 license notices just after the title page:
   723 
  1105 
   724     Copyright (c)  YEAR  YOUR NAME.
  1106     Copyright (c)  YEAR  YOUR NAME.
   725     Permission is granted to copy, distribute and/or modify this document
  1107     Permission is granted to copy, distribute and/or modify this document
   726     under the terms of the GNU Free Documentation License, Version 1.2
  1108     under the terms of the GNU Free Documentation License, Version 1.3
   727     or any later version published by the Free Software Foundation;
  1109     or any later version published by the Free Software Foundation;
   728     with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
  1110     with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
   729     A copy of the license is included in the section entitled "GNU
  1111     A copy of the license is included in the section entitled "GNU
   730     Free Documentation License".
  1112     Free Documentation License".
   731 
  1113