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 Street, Fifth Floor, Boston, MA  02110-1301  USA

     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

    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.

    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.

    58 

    70 

    59 		    GNU GENERAL PUBLIC LICENSE

    71                        TERMS AND CONDITIONS

    60    TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

    72 

    61 

    73   0. Definitions.

    62   0. This License applies to any program or other work which contains

    74 

    63 a notice placed by the copyright holder saying it may be distributed

    75   "This License" refers to version 3 of the GNU General Public License.

    64 under the terms of this General Public License.  The "Program", below,

    76 

    65 refers to any such program or work, and a "work based on the Program"

    77   "Copyright" also means copyright-like laws that apply to other kinds of

    66 means either the Program or any derivative work under copyright law:

    78 works, such as semiconductor masks.

    67 that is to say, a work containing the Program or a portion of it,

    79 

    68 either verbatim or with modifications and/or translated into another

    80   "The Program" refers to any copyrightable work licensed under this

    69 language.  (Hereinafter, translation is included without limitation in

    81 License.  Each licensee is addressed as "you".  "Licensees" and

    70 the term "modification".)  Each licensee is addressed as "you".

    82 "recipients" may be individuals or organizations.

    71 

    83 

    72 Activities other than copying, distribution and modification are not

    84   To "modify" a work means to copy from or adapt all or part of the work

    73 covered by this License; they are outside its scope.  The act of

    85 in a fashion requiring copyright permission, other than the making of an

    74 running the Program is not restricted, and the output from the Program

    86 exact copy.  The resulting work is called a "modified version" of the

    75 is covered only if its contents constitute a work based on the

    87 earlier work or a work "based on" the earlier work.

    76 Program (independent of having been made by running the Program).

    88 

    77 Whether that is true depends on what the Program does.

    89   A "covered work" means either the unmodified Program or a work based

    78 

    90 on the Program.

    79   1. You may copy and distribute verbatim copies of the Program's

    91 

    80 source code as you receive it, in any medium, provided that you

    92   To "propagate" a work means to do anything with it that, without

    81 conspicuously and appropriately publish on each copy an appropriate

    93 permission, would make you directly or secondarily liable for

    82 copyright notice and disclaimer of warranty; keep intact all the

    94 infringement under applicable copyright law, except executing it on a

    83 notices that refer to this License and to the absence of any warranty;

    95 computer or modifying a private copy.  Propagation includes copying,

    84 and give any other recipients of the Program a copy of this License

    96 distribution (with or without modification), making available to the

    85 along with the Program.

    97 public, and in some countries other activities as well.

    86 

    98 

    87 You may charge a fee for the physical act of transferring a copy, and

    99   To "convey" a work means any kind of propagation that enables other

    88 you may at your option offer warranty protection in exchange for a fee.

   100 parties to make or receive copies.  Mere interaction with a user through

    89 

   101 a computer network, with no transfer of a copy, is not conveying.

    90   2. You may modify your copy or copies of the Program or any portion

   102 

    91 of it, thus forming a work based on the Program, and copy and

   103   An interactive user interface displays "Appropriate Legal Notices"

    92 distribute such modifications or work under the terms of Section 1

   104 to the extent that it includes a convenient and prominently visible

    93 above, provided that you also meet all of these conditions:

   105 feature that (1) displays an appropriate copyright notice, and (2)

    94 

   106 tells the user that there is no warranty for the work (except to the

    95     a) You must cause the modified files to carry prominent notices

   107 extent that warranties are provided), that licensees may convey the

    96     stating that you changed the files and the date of any change.

   108 work under this License, and how to view a copy of this License.  If

    97 

   109 the interface presents a list of user commands or options, such as a

    98     b) You must cause any work that you distribute or publish, that in

   110 menu, a prominent item in the list meets this criterion.

    99     whole or in part contains or is derived from the Program or any

   111 

   100     part thereof, to be licensed as a whole at no charge to all third

   112   1. Source Code.

   101     parties under the terms of this License.

   113 

   102 

   114   The "source code" for a work means the preferred form of the work

   103     c) If the modified program normally reads commands interactively

   115 for making modifications to it.  "Object code" means any non-source

   104     when run, you must cause it, when started running for such

   116 form of a work.

   105     interactive use in the most ordinary way, to print or display an

   117 

   106     announcement including an appropriate copyright notice and a

   118   A "Standard Interface" means an interface that either is an official

   107     notice that there is no warranty (or else, saying that you provide

   119 standard defined by a recognized standards body, or, in the case of

   108     a warranty) and that users may redistribute the program under

   120 interfaces specified for a particular programming language, one that

   109     these conditions, and telling the user how to view a copy of this

   121 is widely used among developers working in that language.

   110     License.  (Exception: if the Program itself is interactive but

   122 

   111     does not normally print such an announcement, your work based on

   123   The "System Libraries" of an executable work include anything, other

   112     the Program is not required to print an announcement.)

   124 than the work as a whole, that (a) is included in the normal form of

   113 

   125 packaging a Major Component, but which is not part of that Major

   114 These requirements apply to the modified work as a whole.  If

   126 Component, and (b) serves only to enable use of the work with that

   115 identifiable sections of that work are not derived from the Program,

   127 Major Component, or to implement a Standard Interface for which an

   116 and can be reasonably considered independent and separate works in

   128 implementation is available to the public in source code form.  A

   117 themselves, then this License, and its terms, do not apply to those

   129 "Major Component", in this context, means a major essential component

   118 sections when you distribute them as separate works.  But when you

   130 (kernel, window system, and so on) of the specific operating system

   119 distribute the same sections as part of a whole which is a work based

   131 (if any) on which the executable work runs, or a compiler used to

   120 on the Program, the distribution of the whole must be on the terms of

   132 produce the work, or an object code interpreter used to run it.

   121 this License, whose permissions for other licensees extend to the

   133 

   122 entire whole, and thus to each and every part regardless of who wrote it.

   134   The "Corresponding Source" for a work in object code form means all

   123 

   135 the source code needed to generate, install, and (for an executable

   124 Thus, it is not the intent of this section to claim rights or contest

   136 work) run the object code and to modify the work, including scripts to

   125 your rights to work written entirely by you; rather, the intent is to

   137 control those activities.  However, it does not include the work's

   126 exercise the right to control the distribution of derivative or

   138 System Libraries, or general-purpose tools or generally available free

   127 collective works based on the Program.

   139 programs which are used unmodified in performing those activities but

   128 

   140 which are not part of the work.  For example, Corresponding Source

   129 In addition, mere aggregation of another work not based on the Program

   141 includes interface definition files associated with source files for

   130 with the Program (or with a work based on the Program) on a volume of

   142 the work, and the source code for shared libraries and dynamically

   131 a storage or distribution medium does not bring the other work under

   143 linked subprograms that the work is specifically designed to require,

   132 the scope of this License.

   144 such as by intimate data communication or control flow between those

   133 

   145 subprograms and other parts of the work.

   134   3. You may copy and distribute the Program (or a work based on it,

   146 

   135 under Section 2) in object code or executable form under the terms of

   147   The Corresponding Source need not include anything that users

   136 Sections 1 and 2 above provided that you also do one of the following:

   148 can regenerate automatically from other parts of the Corresponding

   137 

   149 Source.

   138     a) Accompany it with the complete corresponding machine-readable

   150 

   139     source code, which must be distributed under the terms of Sections

   151   The Corresponding Source for a work in source code form is that

   140     1 and 2 above on a medium customarily used for software interchange; or,

   152 same work.

   141 

   153 

   142     b) Accompany it with a written offer, valid for at least three

   154   2. Basic Permissions.

   143     years, to give any third party, for a charge no more than your

   155 

   144     cost of physically performing source distribution, a complete

   156   All rights granted under this License are granted for the term of

   145     machine-readable copy of the corresponding source code, to be

   157 copyright on the Program, and are irrevocable provided the stated

   146     distributed under the terms of Sections 1 and 2 above on a medium

   158 conditions are met.  This License explicitly affirms your unlimited

   147     customarily used for software interchange; or,

   159 permission to run the unmodified Program.  The output from running a

   148 

   160 covered work is covered by this License only if the output, given its

   149     c) Accompany it with the information you received as to the offer

   161 content, constitutes a covered work.  This License acknowledges your

   150     to distribute corresponding source code.  (This alternative is

   162 rights of fair use or other equivalent, as provided by copyright law.

   151     allowed only for noncommercial distribution and only if you

   163 

   152     received the program in object code or executable form with such

   164   You may make, run and propagate covered works that you do not

   153     an offer, in accord with Subsection b above.)

   165 convey, without conditions so long as your license otherwise remains

   154 

   166 in force.  You may convey covered works to others for the sole purpose

   155 The source code for a work means the preferred form of the work for

   167 of having them make modifications exclusively for you, or provide you

   156 making modifications to it.  For an executable work, complete source

   168 with facilities for running those works, provided that you comply with

   157 code means all the source code for all modules it contains, plus any

   169 the terms of this License in conveying all material for which you do

   158 associated interface definition files, plus the scripts used to

   170 not control copyright.  Those thus making or running the covered works

   159 control compilation and installation of the executable.  However, as a

   171 for you must do so exclusively on your behalf, under your direction

   160 special exception, the source code distributed need not include

   172 and control, on terms that prohibit them from making any copies of

   161 anything that is normally distributed (in either source or binary

   173 your copyrighted material outside their relationship with you.

   162 form) with the major components (compiler, kernel, and so on) of the

   174 

   163 operating system on which the executable runs, unless that component

   175   Conveying under any other circumstances is permitted solely under

   164 itself accompanies the executable.

   176 the conditions stated below.  Sublicensing is not allowed; section 10

   165 

   177 makes it unnecessary.

   166 If distribution of executable or object code is made by offering

   178 

   167 access to copy from a designated place, then offering equivalent

   179   3. Protecting Users' Legal Rights From Anti-Circumvention Law.

   168 access to copy the source code from the same place counts as

   180 

   169 distribution of the source code, even though third parties are not

   181   No covered work shall be deemed part of an effective technological

   170 compelled to copy the source along with the object code.

   182 measure under any applicable law fulfilling obligations under article

   171 

   183 11 of the WIPO copyright treaty adopted on 20 December 1996, or

   172   4. You may not copy, modify, sublicense, or distribute the Program

   184 similar laws prohibiting or restricting circumvention of such

   173 except as expressly provided under this License.  Any attempt

   185 measures.

   174 otherwise to copy, modify, sublicense or distribute the Program is

   186 

   175 void, and will automatically terminate your rights under this License.

   187   When you convey a covered work, you waive any legal power to forbid

   176 However, parties who have received copies, or rights, from you under

   188 circumvention of technological measures to the extent such circumvention

   177 this License will not have their licenses terminated so long as such

   189 is effected by exercising rights under this License with respect to

   178 parties remain in full compliance.

   190 the covered work, and you disclaim any intention to limit operation or

   179 

   191 modification of the work as a means of enforcing, against the work's

   180   5. You are not required to accept this License, since you have not

   192 users, your or third parties' legal rights to forbid circumvention of

   181 signed it.  However, nothing else grants you permission to modify or

   193 technological measures.

   182 distribute the Program or its derivative works.  These actions are

   194 

   183 prohibited by law if you do not accept this License.  Therefore, by

   195   4. Conveying Verbatim Copies.

   184 modifying or distributing the Program (or any work based on the

   196 

   185 Program), you indicate your acceptance of this License to do so, and

   197   You may convey verbatim copies of the Program's source code as you

   186 all its terms and conditions for copying, distributing or modifying

   198 receive it, in any medium, provided that you conspicuously and

   187 the Program or works based on it.

   199 appropriately publish on each copy an appropriate copyright notice;

   188 

   200 keep intact all notices stating that this License and any

   189   6. Each time you redistribute the Program (or any work based on the

   201 non-permissive terms added in accord with section 7 apply to the code;

   190 Program), the recipient automatically receives a license from the

   202 keep intact all notices of the absence of any warranty; and give all

   191 original licensor to copy, distribute or modify the Program subject to

   203 recipients a copy of this License along with the Program.

   192 these terms and conditions.  You may not impose any further

   204 

   193 restrictions on the recipients' exercise of the rights granted herein.

   205   You may charge any price or no price for each copy that you convey,

   194 You are not responsible for enforcing compliance by third parties to

   206 and you may offer support or warranty protection for a fee.

   207 

   208   5. Conveying Modified Source Versions.

   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

   197   7. If, as a consequence of a court judgment or allegation of patent

   487   Each contributor grants you a non-exclusive, worldwide, royalty-free

   198 infringement or for any other reason (not limited to patent issues),

   488 patent license under the contributor's essential patent claims, to

   199 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

   201 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

   202 distribute so as to satisfy simultaneously your obligations under this

   545 covered work so as to satisfy simultaneously your obligations under this

   203 License and any other pertinent obligations, then as a consequence you

   546 License and any other pertinent obligations, then as a consequence you may

   204 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

   205 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

   206 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

   207 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.

   208 refrain entirely from distribution of the Program.

   551 

   209 

   552   13. Use with the GNU Affero General Public License.

   210 If any portion of this section is held invalid or unenforceable under

   553 

   211 any particular circumstance, the balance of the section is intended to

   554   Notwithstanding any other provision of this License, you have

   212 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

   213 circumstances.

   556 under version 3 of the GNU Affero General Public License into a single

   214 

   557 combined work, and to convey the resulting work.  The terms of this

   215 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,

   216 patents or other property right claims or to contest validity of any

   559 but the special requirements of the GNU Affero General Public License,

   217 such claims; this section has the sole purpose of protecting the

   560 section 13, concerning interaction through a network will apply to the

   218 integrity of the free software distribution system, which is

   561 combination as such.

   219 implemented by public license practices.  Many people have made

   562 

   220 generous contributions to the wide range of software distributed

   563   14. Revised Versions of this License.

   221 through that system in reliance on consistent application of that

   564 

   222 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

   223 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

   224 impose that choice.

   225 

   226 This section is intended to make thoroughly clear what is believed to

   227 be a consequence of the rest of this License.

   228 

   229   8. If the distribution and/or use of the Program is restricted in

   230 certain countries either by patents or by copyrighted interfaces, the

   231 original copyright holder who places the Program under this License

   232 may add an explicit geographical distribution limitation excluding

   233 those countries, so that distribution is permitted only in or among

   234 countries not thus excluded.  In such case, this License incorporates

   235 the limitation as if written in the body of this License.

   236 

   237   9. The Free Software Foundation may publish revised and/or new versions

   238 of the General Public License from time to time.  Such new versions will

   242 Each version is given a distinguishing version number.  If the Program

   570   Each version is given a distinguishing version number.  If the

   243 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

   244 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

   245 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

   246 Software Foundation.  If the Program does not specify a version number of

   574 version or of any later version published by the Free Software

   247 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

   248 Foundation.

   576 GNU General Public License, you may choose any version ever published

   249 

   577 by the Free Software Foundation.

   250   10. If you wish to incorporate parts of the Program into other free

   578 

   251 programs whose distribution conditions are different, write to the author

   579   If the Program specifies that a proxy can decide which future

   252 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

   253 Software Foundation, write to the Free Software Foundation; we sometimes

   581 public statement of acceptance of a version permanently authorizes you

   254 make exceptions for this.  Our decision will be guided by the two goals

   582 to choose that version for the Program.

   255 of preserving the free status of all derivatives of our free software and

   583 

   256 of promoting the sharing and reuse of software generally.

   584   Later license versions may give you additional or different

   257 

   585 permissions.  However, no additional obligations are imposed on any

   258 			    NO WARRANTY

   586 author or copyright holder as a result of your choosing to follow a

   259 

   587 later version.

   260   11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY

   588 

   261 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN

   589   15. Disclaimer of Warranty.

   262 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES

   590 

   263 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

   264 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

   592 APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT

   265 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS

   593 HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY

   266 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,

   267 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,

   595 THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

   268 REPAIR OR CORRECTION.

   596 PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM

   269 

   597 IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF

   270   12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING

   598 ALL NECESSARY SERVICING, REPAIR OR CORRECTION.

   271 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR

   599 

   272 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,

   600   16. Limitation of Liability.

   273 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING

   601 

   274 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

   275 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

   276 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

   277 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE

   605 GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE

   278 POSSIBILITY OF SUCH DAMAGES.

   606 USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF

   279 

   607 DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD

   280 		     END OF TERMS AND CONDITIONS

   608 PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),

   281 

   609 EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF

   282 	    How to Apply These Terms to Your New Programs

   610 SUCH DAMAGES.

   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

   290 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     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

   298     the Free Software Foundation; either version 2 of the License, or

   639     the Free Software Foundation, either version 3 of the License, or

   307     along with this program; if not, write to the Free Software

   648     along with this program.  If not, see <http://www.gnu.org/licenses/>.

   308     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

   309 

   313 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

   314 when it starts in an interactive mode:

   653 notice like this when it starts in an interactive mode:

   315 

   654 

   316     Gnomovision version 69, Copyright (C) year  name of author

   655     <program>  Copyright (C) <year>  <name of author>

   317     Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.

   656     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.

   322 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

   323 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".

   324 mouse-clicks or menu items--whatever suits your program.

   663 

   325 

   664   You should also get your employer (if you work as a programmer) or school,

   326 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.

   327 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

   328 necessary.  Here is a sample; alter the names:

   667 <http://www.gnu.org/licenses/>.

   329 

   668 

   330   Yoyodyne, Inc., hereby disclaims all copyright interest in the program

   669   The GNU General Public License does not permit incorporating your program

   331   `Gnomovision' (which makes passes at compilers) written by James Hacker.

   670 into proprietary programs.  If your program is a subroutine library, you

   332 

   671 may consider it more useful to permit linking proprietary applications with

   333   <signature of Ty Coon>, 1 April 1989

   672 the library.  If this is what you want to do, use the GNU Lesser General

   334   Ty Coon, President of Vice

   673 Public License instead of this License.  But first, please read

   335 

   674 <http://www.gnu.org/philosophy/why-not-lgpl.html>.

   336 This General Public License does not permit incorporating your program into

   675 

   337 proprietary programs.  If your program is a subroutine library, you may

   676 -----------------------------------------------------------------------

   338 consider it more useful to permit linking proprietary applications with the

   339 library.  If this is what you want to do, use the GNU Library General

   340 Public License instead of this License.

   341 

   342 --------------------------------------------------------------------