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 |    1                     GNU GENERAL PUBLIC LICENSE | 
 |    2                        Version 3, 29 June 2007 | 
 |    3  | 
 |    4  Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> | 
 |    5  Everyone is permitted to copy and distribute verbatim copies | 
 |    6  of this license document, but changing it is not allowed. | 
 |    7  | 
 |    8                             Preamble | 
 |    9  | 
 |   10   The GNU General Public License is a free, copyleft license for | 
 |   11 software and other kinds of works. | 
 |   12  | 
 |   13   The licenses for most software and other practical works are designed | 
 |   14 to take away your freedom to share and change the works.  By contrast, | 
 |   15 the GNU General Public License is intended to guarantee your freedom to | 
 |   16 share and change all versions of a program--to make sure it remains free | 
 |   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 | 
 |   20 your programs, too. | 
 |   21  | 
 |   22   When we speak of free software, we are referring to freedom, not | 
 |   23 price.  Our General Public Licenses are designed to make sure that you | 
 |   24 have the freedom to distribute copies of free software (and charge for | 
 |   25 them if you wish), that you receive source code or can get it if you | 
 |   26 want it, that you can change the software or use pieces of it in new | 
 |   27 free programs, and that you know you can do these things. | 
 |   28  | 
 |   29   To protect your rights, we need to prevent others from denying you | 
 |   30 these rights or asking you to surrender the rights.  Therefore, you have | 
 |   31 certain responsibilities if you distribute copies of the software, or if | 
 |   32 you modify it: responsibilities to respect the freedom of others. | 
 |   33  | 
 |   34   For example, if you distribute copies of such a program, whether | 
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 |   39  | 
 |   40   Developers that use the GNU GPL protect your rights with two steps: | 
 |   41 (1) assert copyright on the software, and (2) offer you this License | 
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 |   43  | 
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 |   49  | 
 |   50   Some devices are designed to deny users access to install or run | 
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 |   56 have designed this version of the GPL to prohibit the practice for those | 
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 |   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. | 
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 |   70  | 
 |   71                        TERMS AND CONDITIONS | 
 |   72  | 
 |   73   0. Definitions. | 
 |   74  | 
 |   75   "This License" refers to version 3 of the GNU General Public License. | 
 |   76  | 
 |   77   "Copyright" also means copyright-like laws that apply to other kinds of | 
 |   78 works, such as semiconductor masks. | 
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 |   80   "The Program" refers to any copyrightable work licensed under this | 
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 |   92   To "propagate" a work means to do anything with it that, without | 
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 |  150  | 
 |  151   The Corresponding Source for a work in source code form is that | 
 |  152 same work. | 
 |  153  | 
 |  154   2. Basic Permissions. | 
 |  155  | 
 |  156   All rights granted under this License are granted for the term of | 
 |  157 copyright on the Program, and are irrevocable provided the stated | 
 |  158 conditions are met.  This License explicitly affirms your unlimited | 
 |  159 permission to run the unmodified Program.  The output from running a | 
 |  160 covered work is covered by this License only if the output, given its | 
 |  161 content, constitutes a covered work.  This License acknowledges your | 
 |  162 rights of fair use or other equivalent, as provided by copyright law. | 
 |  163  | 
 |  164   You may make, run and propagate covered works that you do not | 
 |  165 convey, without conditions so long as your license otherwise remains | 
 |  166 in force.  You may convey covered works to others for the sole purpose | 
 |  167 of having them make modifications exclusively for you, or provide you | 
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 |  172 and control, on terms that prohibit them from making any copies of | 
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 |  174  | 
 |  175   Conveying under any other circumstances is permitted solely under | 
 |  176 the conditions stated below.  Sublicensing is not allowed; section 10 | 
 |  177 makes it unnecessary. | 
 |  178  | 
 |  179   3. Protecting Users' Legal Rights From Anti-Circumvention Law. | 
 |  180  | 
 |  181   No covered work shall be deemed part of an effective technological | 
 |  182 measure under any applicable law fulfilling obligations under article | 
 |  183 11 of the WIPO copyright treaty adopted on 20 December 1996, or | 
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 |  185 measures. | 
 |  186  | 
 |  187   When you convey a covered work, you waive any legal power to forbid | 
 |  188 circumvention of technological measures to the extent such circumvention | 
 |  189 is effected by exercising rights under this License with respect to | 
 |  190 the covered work, and you disclaim any intention to limit operation or | 
 |  191 modification of the work as a means of enforcing, against the work's | 
 |  192 users, your or third parties' legal rights to forbid circumvention of | 
 |  193 technological measures. | 
 |  194  | 
 |  195   4. Conveying Verbatim Copies. | 
 |  196  | 
 |  197   You may convey verbatim copies of the Program's source code as you | 
 |  198 receive it, in any medium, provided that you conspicuously and | 
 |  199 appropriately publish on each copy an appropriate copyright notice; | 
 |  200 keep intact all notices stating that this License and any | 
 |  201 non-permissive terms added in accord with section 7 apply to the code; | 
 |  202 keep intact all notices of the absence of any warranty; and give all | 
 |  203 recipients a copy of this License along with the Program. | 
 |  204  | 
 |  205   You may charge any price or no price for each copy that you convey, | 
 |  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 | 
 |  485 this License. | 
 |  486  | 
 |  487   Each contributor grants you a non-exclusive, worldwide, royalty-free | 
 |  488 patent license under the contributor's essential patent claims, to | 
 |  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 | 
 |  543 otherwise) that contradict the conditions of this License, they do not | 
 |  544 excuse you from the conditions of this License.  If you cannot convey a | 
 |  545 covered work so as to satisfy simultaneously your obligations under this | 
 |  546 License and any other pertinent obligations, then as a consequence you may | 
 |  547 not convey it at all.  For example, if you agree to terms that obligate you | 
 |  548 to collect a royalty for further conveying from those to whom you convey | 
 |  549 the Program, the only way you could satisfy both those terms and this | 
 |  550 License would be to refrain entirely from conveying the Program. | 
 |  551  | 
 |  552   13. Use with the GNU Affero General Public License. | 
 |  553  | 
 |  554   Notwithstanding any other provision of this License, you have | 
 |  555 permission to link or combine any covered work with a work licensed | 
 |  556 under version 3 of the GNU Affero General Public License into a single | 
 |  557 combined work, and to convey the resulting work.  The terms of this | 
 |  558 License will continue to apply to the part which is the covered work, | 
 |  559 but the special requirements of the GNU Affero General Public License, | 
 |  560 section 13, concerning interaction through a network will apply to the | 
 |  561 combination as such. | 
 |  562  | 
 |  563   14. Revised Versions of this License. | 
 |  564  | 
 |  565   The Free Software Foundation may publish revised and/or new versions of | 
 |  566 the GNU General Public License from time to time.  Such new versions will | 
 |  567 be similar in spirit to the present version, but may differ in detail to | 
 |  568 address new problems or concerns. | 
 |  569  | 
 |  570   Each version is given a distinguishing version number.  If the | 
 |  571 Program specifies that a certain numbered version of the GNU General | 
 |  572 Public License "or any later version" applies to it, you have the | 
 |  573 option of following the terms and conditions either of that numbered | 
 |  574 version or of any later version published by the Free Software | 
 |  575 Foundation.  If the Program does not specify a version number of the | 
 |  576 GNU General Public License, you may choose any version ever published | 
 |  577 by the Free Software Foundation. | 
 |  578  | 
 |  579   If the Program specifies that a proxy can decide which future | 
 |  580 versions of the GNU General Public License can be used, that proxy's | 
 |  581 public statement of acceptance of a version permanently authorizes you | 
 |  582 to choose that version for the Program. | 
 |  583  | 
 |  584   Later license versions may give you additional or different | 
 |  585 permissions.  However, no additional obligations are imposed on any | 
 |  586 author or copyright holder as a result of your choosing to follow a | 
 |  587 later version. | 
 |  588  | 
 |  589   15. Disclaimer of Warranty. | 
 |  590  | 
 |  591   THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY | 
 |  592 APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT | 
 |  593 HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY | 
 |  594 OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, | 
 |  595 THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 
 |  596 PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM | 
 |  597 IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF | 
 |  598 ALL NECESSARY SERVICING, REPAIR OR CORRECTION. | 
 |  599  | 
 |  600   16. Limitation of Liability. | 
 |  601  | 
 |  602   IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING | 
 |  603 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS | 
 |  604 THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY | 
 |  605 GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE | 
 |  606 USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF | 
 |  607 DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD | 
 |  608 PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), | 
 |  609 EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF | 
 |  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 | 
 |  624  | 
 |  625   If you develop a new program, and you want it to be of the greatest | 
 |  626 possible use to the public, the best way to achieve this is to make it | 
 |  627 free software which everyone can redistribute and change under these terms. | 
 |  628  | 
 |  629   To do so, attach the following notices to the program.  It is safest | 
 |  630 to attach them to the start of each source file to most effectively | 
 |  631 state the exclusion of warranty; and each file should have at least | 
 |  632 the "copyright" line and a pointer to where the full notice is found. | 
 |  633  | 
 |  634     <one line to give the program's name and a brief idea of what it does.> | 
 |  635     Copyright (C) <year>  <name of author> | 
 |  636  | 
 |  637     This program is free software: you can redistribute it and/or modify | 
 |  638     it under the terms of the GNU General Public License as published by | 
 |  639     the Free Software Foundation, either version 3 of the License, or | 
 |  640     (at your option) any later version. | 
 |  641  | 
 |  642     This program is distributed in the hope that it will be useful, | 
 |  643     but WITHOUT ANY WARRANTY; without even the implied warranty of | 
 |  644     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
 |  645     GNU General Public License for more details. | 
 |  646  | 
 |  647     You should have received a copy of the GNU General Public License | 
 |  648     along with this program.  If not, see <http://www.gnu.org/licenses/>. | 
 |  649  | 
 |  650 Also add information on how to contact you by electronic and paper mail. | 
 |  651  | 
 |  652   If the program does terminal interaction, make it output a short | 
 |  653 notice like this when it starts in an interactive mode: | 
 |  654  | 
 |  655     <program>  Copyright (C) <year>  <name of author> | 
 |  656     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. | 
 |  657     This is free software, and you are welcome to redistribute it | 
 |  658     under certain conditions; type `show c' for details. | 
 |  659  | 
 |  660 The hypothetical commands `show w' and `show c' should show the appropriate | 
 |  661 parts of the General Public License.  Of course, your program's commands | 
 |  662 might be different; for a GUI interface, you would use an "about box". | 
 |  663  | 
 |  664   You should also get your employer (if you work as a programmer) or school, | 
 |  665 if any, to sign a "copyright disclaimer" for the program, if necessary. | 
 |  666 For more information on this, and how to apply and follow the GNU GPL, see | 
 |  667 <http://www.gnu.org/licenses/>. | 
 |  668  | 
 |  669   The GNU General Public License does not permit incorporating your program | 
 |  670 into proprietary programs.  If your program is a subroutine library, you | 
 |  671 may consider it more useful to permit linking proprietary applications with | 
 |  672 the library.  If this is what you want to do, use the GNU Lesser General | 
 |  673 Public License instead of this License.  But first, please read | 
 |  674 <http://www.gnu.org/philosophy/why-not-lgpl.html>. | 
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