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     1 		    GNU GENERAL PUBLIC LICENSE  | 
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     2 		       Version 3, 29 June 2007  | 
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     3   | 
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     4  Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>  | 
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     5  Everyone is permitted to copy and distribute verbatim copies  | 
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     6  of this license document, but changing it is not allowed.  | 
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     7   | 
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     8 			    Preamble  | 
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     9   | 
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    10   The GNU General Public License is a free, copyleft license for  | 
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    11 software and other kinds of works.  | 
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    12   | 
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    13   The licenses for most software and other practical works are designed  | 
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    14 to take away your freedom to share and change the works.  By contrast,  | 
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    15 the GNU General Public License is intended to guarantee your freedom to  | 
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    16 share and change all versions of a program--to make sure it remains free  | 
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    17 software for all its users.  We, the Free Software Foundation, use the  | 
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    18 GNU General Public License for most of our software; it applies also to  | 
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    19 any other work released this way by its authors.  You can apply it to  | 
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    20 your programs, too.  | 
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    21   | 
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    22   When we speak of free software, we are referring to freedom, not  | 
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    23 price.  Our General Public Licenses are designed to make sure that you  | 
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    24 have the freedom to distribute copies of free software (and charge for  | 
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    25 them if you wish), that you receive source code or can get it if you  | 
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    26 want it, that you can change the software or use pieces of it in new  | 
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    27 free programs, and that you know you can do these things.  | 
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    28   | 
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    29   To protect your rights, we need to prevent others from denying you  | 
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    30 these rights or asking you to surrender the rights.  Therefore, you have  | 
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    31 certain responsibilities if you distribute copies of the software, or if  | 
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    32 you modify it: responsibilities to respect the freedom of others.  | 
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    33   | 
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    34   For example, if you distribute copies of such a program, whether  | 
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    35 gratis or for a fee, you must pass on to the recipients the same  | 
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    36 freedoms that you received.  You must make sure that they, too, receive  | 
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    37 or can get the source code.  And you must show them these terms so they  | 
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    38 know their rights.  | 
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    39   | 
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    40   Developers that use the GNU GPL protect your rights with two steps:  | 
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    41 (1) assert copyright on the software, and (2) offer you this License  | 
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    42 giving you legal permission to copy, distribute and/or modify it.  | 
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    43   | 
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    44   For the developers' and authors' protection, the GPL clearly explains  | 
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    45 that there is no warranty for this free software.  For both users' and  | 
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    46 authors' sake, the GPL requires that modified versions be marked as  | 
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    47 changed, so that their problems will not be attributed erroneously to  | 
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    48 authors of previous versions.  | 
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    49   | 
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    50   Some devices are designed to deny users access to install or run  | 
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    51 modified versions of the software inside them, although the manufacturer  | 
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    52 can do so.  This is fundamentally incompatible with the aim of  | 
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    53 protecting users' freedom to change the software.  The systematic  | 
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    54 pattern of such abuse occurs in the area of products for individuals to  | 
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    55 use, which is precisely where it is most unacceptable.  Therefore, we  | 
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    56 have designed this version of the GPL to prohibit the practice for those  | 
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    57 products.  If such problems arise substantially in other domains, we  | 
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    58 stand ready to extend this provision to those domains in future versions  | 
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    59 of the GPL, as needed to protect the freedom of users.  | 
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    60   | 
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    61   Finally, every program is threatened constantly by software patents.  | 
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    62 States should not allow patents to restrict development and use of  | 
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    63 software on general-purpose computers, but in those that do, we wish to  | 
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    64 avoid the special danger that patents applied to a free program could  | 
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    65 make it effectively proprietary.  To prevent this, the GPL assures that  | 
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    66 patents cannot be used to render the program non-free.  | 
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    67   | 
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    68   The precise terms and conditions for copying, distribution and  | 
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    69 modification follow.  | 
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    70   | 
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    71 		       TERMS AND CONDITIONS  | 
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    72   | 
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    73   0. Definitions.  | 
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    74   | 
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    75   "This License" refers to version 3 of the GNU General Public License.  | 
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    76   | 
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    77   "Copyright" also means copyright-like laws that apply to other kinds of  | 
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    78 works, such as semiconductor masks.  | 
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    79    | 
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    80   "The Program" refers to any copyrightable work licensed under this  | 
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    81 License.  Each licensee is addressed as "you".  "Licensees" and  | 
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    82 "recipients" may be individuals or organizations.  | 
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    83   | 
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    84   To "modify" a work means to copy from or adapt all or part of the work  | 
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    85 in a fashion requiring copyright permission, other than the making of an  | 
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    86 exact copy.  The resulting work is called a "modified version" of the  | 
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    87 earlier work or a work "based on" the earlier work.  | 
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    88   | 
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    89   A "covered work" means either the unmodified Program or a work based  | 
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    90 on the Program.  | 
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    91   | 
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    92   To "propagate" a work means to do anything with it that, without  | 
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    93 permission, would make you directly or secondarily liable for  | 
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    94 infringement under applicable copyright law, except executing it on a  | 
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    95 computer or modifying a private copy.  Propagation includes copying,  | 
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    96 distribution (with or without modification), making available to the  | 
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    97 public, and in some countries other activities as well.  | 
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    98   | 
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    99   To "convey" a work means any kind of propagation that enables other  | 
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   100 parties to make or receive copies.  Mere interaction with a user through  | 
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   101 a computer network, with no transfer of a copy, is not conveying.  | 
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   102   | 
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   103   An interactive user interface displays "Appropriate Legal Notices"  | 
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   104 to the extent that it includes a convenient and prominently visible  | 
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   105 feature that (1) displays an appropriate copyright notice, and (2)  | 
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   106 tells the user that there is no warranty for the work (except to the  | 
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   107 extent that warranties are provided), that licensees may convey the  | 
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   108 work under this License, and how to view a copy of this License.  If  | 
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   109 the interface presents a list of user commands or options, such as a  | 
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   110 menu, a prominent item in the list meets this criterion.  | 
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   111   | 
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   112   1. Source Code.  | 
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   113   | 
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   114   The "source code" for a work means the preferred form of the work  | 
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   115 for making modifications to it.  "Object code" means any non-source  | 
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   116 form of a work.  | 
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   117   | 
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   118   A "Standard Interface" means an interface that either is an official  | 
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   119 standard defined by a recognized standards body, or, in the case of  | 
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   120 interfaces specified for a particular programming language, one that  | 
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   121 is widely used among developers working in that language.  | 
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   122   | 
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   123   The "System Libraries" of an executable work include anything, other  | 
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   124 than the work as a whole, that (a) is included in the normal form of  | 
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   125 packaging a Major Component, but which is not part of that Major  | 
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   126 Component, and (b) serves only to enable use of the work with that  | 
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   127 Major Component, or to implement a Standard Interface for which an  | 
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   128 implementation is available to the public in source code form.  A  | 
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   129 "Major Component", in this context, means a major essential component  | 
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   130 (kernel, window system, and so on) of the specific operating system  | 
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   131 (if any) on which the executable work runs, or a compiler used to  | 
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   132 produce the work, or an object code interpreter used to run it.  | 
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   133   | 
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   134   The "Corresponding Source" for a work in object code form means all  | 
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   135 the source code needed to generate, install, and (for an executable  | 
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   136 work) run the object code and to modify the work, including scripts to  | 
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   137 control those activities.  However, it does not include the work's  | 
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   138 System Libraries, or general-purpose tools or generally available free  | 
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   139 programs which are used unmodified in performing those activities but  | 
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   140 which are not part of the work.  For example, Corresponding Source  | 
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   141 includes interface definition files associated with source files for  | 
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   142 the work, and the source code for shared libraries and dynamically  | 
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   143 linked subprograms that the work is specifically designed to require,  | 
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   144 such as by intimate data communication or control flow between those  | 
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   145 subprograms and other parts of the work.  | 
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   146   | 
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   147   The Corresponding Source need not include anything that users  | 
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   148 can regenerate automatically from other parts of the Corresponding  | 
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   149 Source.  | 
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   150   | 
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   151   The Corresponding Source for a work in source code form is that  | 
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   152 same work.  | 
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   153   | 
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   154   2. Basic Permissions.  | 
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   155   | 
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   156   All rights granted under this License are granted for the term of  | 
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   157 copyright on the Program, and are irrevocable provided the stated  | 
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   158 conditions are met.  This License explicitly affirms your unlimited  | 
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   159 permission to run the unmodified Program.  The output from running a  | 
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   160 covered work is covered by this License only if the output, given its  | 
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   161 content, constitutes a covered work.  This License acknowledges your  | 
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   162 rights of fair use or other equivalent, as provided by copyright law.  | 
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   163   | 
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   164   You may make, run and propagate covered works that you do not  | 
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   165 convey, without conditions so long as your license otherwise remains  | 
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   166 in force.  You may convey covered works to others for the sole purpose  | 
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   167 of having them make modifications exclusively for you, or provide you  | 
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   168 with facilities for running those works, provided that you comply with  | 
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   169 the terms of this License in conveying all material for which you do  | 
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   170 not control copyright.  Those thus making or running the covered works  | 
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   171 for you must do so exclusively on your behalf, under your direction  | 
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   172 and control, on terms that prohibit them from making any copies of  | 
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   173 your copyrighted material outside their relationship with you.  | 
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   174   | 
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   175   Conveying under any other circumstances is permitted solely under  | 
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   176 the conditions stated below.  Sublicensing is not allowed; section 10  | 
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   177 makes it unnecessary.  | 
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   178   | 
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   179   3. Protecting Users' Legal Rights From Anti-Circumvention Law.  | 
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   180   | 
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   181   No covered work shall be deemed part of an effective technological  | 
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   182 measure under any applicable law fulfilling obligations under article  | 
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   183 11 of the WIPO copyright treaty adopted on 20 December 1996, or  | 
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   184 similar laws prohibiting or restricting circumvention of such  | 
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   185 measures.  | 
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   186   | 
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   187   When you convey a covered work, you waive any legal power to forbid  | 
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   188 circumvention of technological measures to the extent such circumvention  | 
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   189 is effected by exercising rights under this License with respect to  | 
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   190 the covered work, and you disclaim any intention to limit operation or  | 
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   191 modification of the work as a means of enforcing, against the work's  | 
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   192 users, your or third parties' legal rights to forbid circumvention of  | 
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   193 technological measures.  | 
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   194   | 
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   195   4. Conveying Verbatim Copies.  | 
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   196   | 
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   197   You may convey verbatim copies of the Program's source code as you  | 
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   198 receive it, in any medium, provided that you conspicuously and  | 
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   199 appropriately publish on each copy an appropriate copyright notice;  | 
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   200 keep intact all notices stating that this License and any  | 
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   201 non-permissive terms added in accord with section 7 apply to the code;  | 
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   202 keep intact all notices of the absence of any warranty; and give all  | 
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   203 recipients a copy of this License along with the Program.  | 
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   204   | 
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   205   You may charge any price or no price for each copy that you convey,  | 
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   206 and you may offer support or warranty protection for a fee.  | 
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   207   | 
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   208   5. Conveying Modified Source Versions.  | 
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   209   | 
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   210   You may convey a work based on the Program, or the modifications to  | 
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   211 produce it from the Program, in the form of source code under the  | 
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   212 terms of section 4, provided that you also meet all of these conditions:  | 
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   213   | 
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   214     a) The work must carry prominent notices stating that you modified  | 
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   215     it, and giving a relevant date.  | 
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   216   | 
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   217     b) The work must carry prominent notices stating that it is  | 
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   218     released under this License and any conditions added under section  | 
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   219     7.  This requirement modifies the requirement in section 4 to  | 
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   220     "keep intact all notices".  | 
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   221   | 
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   222     c) You must license the entire work, as a whole, under this  | 
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   223     License to anyone who comes into possession of a copy.  This  | 
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   224     License will therefore apply, along with any applicable section 7  | 
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   225     additional terms, to the whole of the work, and all its parts,  | 
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   226     regardless of how they are packaged.  This License gives no  | 
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   227     permission to license the work in any other way, but it does not  | 
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   228     invalidate such permission if you have separately received it.  | 
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   229   | 
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   230     d) If the work has interactive user interfaces, each must display  | 
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   231     Appropriate Legal Notices; however, if the Program has interactive  | 
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   232     interfaces that do not display Appropriate Legal Notices, your  | 
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   233     work need not make them do so.  | 
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   234   | 
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   235   A compilation of a covered work with other separate and independent  | 
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   236 works, which are not by their nature extensions of the covered work,  | 
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   237 and which are not combined with it such as to form a larger program,  | 
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   238 in or on a volume of a storage or distribution medium, is called an  | 
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   239 "aggregate" if the compilation and its resulting copyright are not  | 
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   240 used to limit the access or legal rights of the compilation's users  | 
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   241 beyond what the individual works permit.  Inclusion of a covered work  | 
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   242 in an aggregate does not cause this License to apply to the other  | 
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   243 parts of the aggregate.  | 
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   244   | 
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   245   6. Conveying Non-Source Forms.  | 
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   246   | 
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   247   You may convey a covered work in object code form under the terms  | 
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   248 of sections 4 and 5, provided that you also convey the  | 
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   249 machine-readable Corresponding Source under the terms of this License,  | 
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   250 in one of these ways:  | 
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   251   | 
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   252     a) Convey the object code in, or embodied in, a physical product  | 
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   253     (including a physical distribution medium), accompanied by the  | 
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   254     Corresponding Source fixed on a durable physical medium  | 
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   255     customarily used for software interchange.  | 
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   256   | 
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   257     b) Convey the object code in, or embodied in, a physical product  | 
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   258     (including a physical distribution medium), accompanied by a  | 
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   259     written offer, valid for at least three years and valid for as  | 
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   260     long as you offer spare parts or customer support for that product  | 
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   261     model, to give anyone who possesses the object code either (1) a  | 
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   262     copy of the Corresponding Source for all the software in the  | 
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   263     product that is covered by this License, on a durable physical  | 
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   264     medium customarily used for software interchange, for a price no  | 
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   265     more than your reasonable cost of physically performing this  | 
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   266     conveying of source, or (2) access to copy the  | 
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   267     Corresponding Source from a network server at no charge.  | 
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   268   | 
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   269     c) Convey individual copies of the object code with a copy of the  | 
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   270     written offer to provide the Corresponding Source.  This  | 
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   271     alternative is allowed only occasionally and noncommercially, and  | 
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   272     only if you received the object code with such an offer, in accord  | 
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   273     with subsection 6b.  | 
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   274   | 
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   275     d) Convey the object code by offering access from a designated  | 
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   276     place (gratis or for a charge), and offer equivalent access to the  | 
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   277     Corresponding Source in the same way through the same place at no  | 
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   278     further charge.  You need not require recipients to copy the  | 
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   279     Corresponding Source along with the object code.  If the place to  | 
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   280     copy the object code is a network server, the Corresponding Source  | 
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   281     may be on a different server (operated by you or a third party)  | 
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   282     that supports equivalent copying facilities, provided you maintain  | 
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   283     clear directions next to the object code saying where to find the  | 
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   284     Corresponding Source.  Regardless of what server hosts the  | 
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   285     Corresponding Source, you remain obligated to ensure that it is  | 
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   286     available for as long as needed to satisfy these requirements.  | 
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   287   | 
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   288     e) Convey the object code using peer-to-peer transmission, provided  | 
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   289     you inform other peers where the object code and Corresponding  | 
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   290     Source of the work are being offered to the general public at no  | 
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   291     charge under subsection 6d.  | 
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   292   | 
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   293   A separable portion of the object code, whose source code is excluded  | 
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   294 from the Corresponding Source as a System Library, need not be  | 
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   295 included in conveying the object code work.  | 
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   296   | 
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   297   A "User Product" is either (1) a "consumer product", which means any  | 
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   298 tangible personal property which is normally used for personal, family,  | 
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   299 or household purposes, or (2) anything designed or sold for incorporation  | 
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   300 into a dwelling.  In determining whether a product is a consumer product,  | 
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   301 doubtful cases shall be resolved in favor of coverage.  For a particular  | 
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   302 product received by a particular user, "normally used" refers to a  | 
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   303 typical or common use of that class of product, regardless of the status  | 
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   304 of the particular user or of the way in which the particular user  | 
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   305 actually uses, or expects or is expected to use, the product.  A product  | 
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   306 is a consumer product regardless of whether the product has substantial  | 
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   307 commercial, industrial or non-consumer uses, unless such uses represent  | 
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   308 the only significant mode of use of the product.  | 
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   309   | 
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   310   "Installation Information" for a User Product means any methods,  | 
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   311 procedures, authorization keys, or other information required to install  | 
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   312 and execute modified versions of a covered work in that User Product from  | 
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   313 a modified version of its Corresponding Source.  The information must  | 
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   314 suffice to ensure that the continued functioning of the modified object  | 
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   315 code is in no case prevented or interfered with solely because  | 
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   316 modification has been made.  | 
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   317   | 
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   318   If you convey an object code work under this section in, or with, or  | 
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   319 specifically for use in, a User Product, and the conveying occurs as  | 
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   320 part of a transaction in which the right of possession and use of the  | 
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   321 User Product is transferred to the recipient in perpetuity or for a  | 
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   322 fixed term (regardless of how the transaction is characterized), the  | 
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   323 Corresponding Source conveyed under this section must be accompanied  | 
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   324 by the Installation Information.  But this requirement does not apply  | 
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   325 if neither you nor any third party retains the ability to install  | 
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   326 modified object code on the User Product (for example, the work has  | 
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   327 been installed in ROM).  | 
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   328   | 
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   329   The requirement to provide Installation Information does not include a  | 
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   330 requirement to continue to provide support service, warranty, or updates  | 
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   331 for a work that has been modified or installed by the recipient, or for  | 
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   332 the User Product in which it has been modified or installed.  Access to a  | 
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   333 network may be denied when the modification itself materially and  | 
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   334 adversely affects the operation of the network or violates the rules and  | 
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   335 protocols for communication across the network.  | 
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   336   | 
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   337   Corresponding Source conveyed, and Installation Information provided,  | 
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   338 in accord with this section must be in a format that is publicly  | 
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   339 documented (and with an implementation available to the public in  | 
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   340 source code form), and must require no special password or key for  | 
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   341 unpacking, reading or copying.  | 
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   342   | 
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   343   7. Additional Terms.  | 
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   344   | 
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   345   "Additional permissions" are terms that supplement the terms of this  | 
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   346 License by making exceptions from one or more of its conditions.  | 
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   347 Additional permissions that are applicable to the entire Program shall  | 
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   348 be treated as though they were included in this License, to the extent  | 
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   349 that they are valid under applicable law.  If additional permissions  | 
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   350 apply only to part of the Program, that part may be used separately  | 
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   351 under those permissions, but the entire Program remains governed by  | 
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   352 this License without regard to the additional permissions.  | 
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   353   | 
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   354   When you convey a copy of a covered work, you may at your option  | 
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   355 remove any additional permissions from that copy, or from any part of  | 
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   356 it.  (Additional permissions may be written to require their own  | 
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   357 removal in certain cases when you modify the work.)  You may place  | 
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   358 additional permissions on material, added by you to a covered work,  | 
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   359 for which you have or can give appropriate copyright permission.  | 
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   360   | 
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   361   Notwithstanding any other provision of this License, for material you  | 
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   362 add to a covered work, you may (if authorized by the copyright holders of  | 
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   363 that material) supplement the terms of this License with terms:  | 
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   364   | 
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   365     a) Disclaiming warranty or limiting liability differently from the  | 
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   366     terms of sections 15 and 16 of this License; or  | 
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   367   | 
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   368     b) Requiring preservation of specified reasonable legal notices or  | 
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   369     author attributions in that material or in the Appropriate Legal  | 
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   370     Notices displayed by works containing it; or  | 
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   371   | 
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   372     c) Prohibiting misrepresentation of the origin of that material, or  | 
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   373     requiring that modified versions of such material be marked in  | 
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   374     reasonable ways as different from the original version; or  | 
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   375   | 
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   376     d) Limiting the use for publicity purposes of names of licensors or  | 
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   377     authors of the material; or  | 
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   378   | 
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   379     e) Declining to grant rights under trademark law for use of some  | 
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   380     trade names, trademarks, or service marks; or  | 
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   381   | 
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   382     f) Requiring indemnification of licensors and authors of that  | 
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   383     material by anyone who conveys the material (or modified versions of  | 
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   384     it) with contractual assumptions of liability to the recipient, for  | 
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   385     any liability that these contractual assumptions directly impose on  | 
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   386     those licensors and authors.  | 
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   387   | 
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   388   All other non-permissive additional terms are considered "further  | 
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   389 restrictions" within the meaning of section 10.  If the Program as you  | 
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   390 received it, or any part of it, contains a notice stating that it is  | 
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   391 governed by this License along with a term that is a further  | 
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   392 restriction, you may remove that term.  If a license document contains  | 
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   393 a further restriction but permits relicensing or conveying under this  | 
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   394 License, you may add to a covered work material governed by the terms  | 
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   395 of that license document, provided that the further restriction does  | 
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   396 not survive such relicensing or conveying.  | 
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   397   | 
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   398   If you add terms to a covered work in accord with this section, you  | 
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   399 must place, in the relevant source files, a statement of the  | 
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   400 additional terms that apply to those files, or a notice indicating  | 
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   401 where to find the applicable terms.  | 
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   402   | 
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   403   Additional terms, permissive or non-permissive, may be stated in the  | 
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   404 form of a separately written license, or stated as exceptions;  | 
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   405 the above requirements apply either way.  | 
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   406   | 
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   407   8. Termination.  | 
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   408   | 
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   409   You may not propagate or modify a covered work except as expressly  | 
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   410 provided under this License.  Any attempt otherwise to propagate or  | 
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   411 modify it is void, and will automatically terminate your rights under  | 
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   412 this License (including any patent licenses granted under the third  | 
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   413 paragraph of section 11).  | 
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   414   | 
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   415   However, if you cease all violation of this License, then your  | 
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   416 license from a particular copyright holder is reinstated (a)  | 
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   417 provisionally, unless and until the copyright holder explicitly and  | 
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   418 finally terminates your license, and (b) permanently, if the copyright  | 
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   419 holder fails to notify you of the violation by some reasonable means  | 
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   420 prior to 60 days after the cessation.  | 
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   421   | 
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   422   Moreover, your license from a particular copyright holder is  | 
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   423 reinstated permanently if the copyright holder notifies you of the  | 
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   424 violation by some reasonable means, this is the first time you have  | 
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   425 received notice of violation of this License (for any work) from that  | 
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   426 copyright holder, and you cure the violation prior to 30 days after  | 
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   427 your receipt of the notice.  | 
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   428   | 
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   429   Termination of your rights under this section does not terminate the  | 
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   430 licenses of parties who have received copies or rights from you under  | 
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   431 this License.  If your rights have been terminated and not permanently  | 
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   432 reinstated, you do not qualify to receive new licenses for the same  | 
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   433 material under section 10.  | 
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   434   | 
         | 
   435   9. Acceptance Not Required for Having Copies.  | 
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   436   | 
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   437   You are not required to accept this License in order to receive or  | 
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   438 run a copy of the Program.  Ancillary propagation of a covered work  | 
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   439 occurring solely as a consequence of using peer-to-peer transmission  | 
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   440 to receive a copy likewise does not require acceptance.  However,  | 
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   441 nothing other than this License grants you permission to propagate or  | 
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   442 modify any covered work.  These actions infringe copyright if you do  | 
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   443 not accept this License.  Therefore, by modifying or propagating a  | 
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   444 covered work, you indicate your acceptance of this License to do so.  | 
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   445   | 
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   446   10. Automatic Licensing of Downstream Recipients.  | 
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   447   | 
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   448   Each time you convey a covered work, the recipient automatically  | 
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   449 receives a license from the original licensors, to run, modify and  | 
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   450 propagate that work, subject to this License.  You are not responsible  | 
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   451 for enforcing compliance by third parties with this License.  | 
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   452   | 
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   453   An "entity transaction" is a transaction transferring control of an  | 
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   454 organization, or substantially all assets of one, or subdividing an  | 
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   455 organization, or merging organizations.  If propagation of a covered  | 
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   456 work results from an entity transaction, each party to that  | 
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   457 transaction who receives a copy of the work also receives whatever  | 
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   458 licenses to the work the party's predecessor in interest had or could  | 
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   459 give under the previous paragraph, plus a right to possession of the  | 
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   460 Corresponding Source of the work from the predecessor in interest, if  | 
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   461 the predecessor has it or can get it with reasonable efforts.  | 
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   462   | 
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   463   You may not impose any further restrictions on the exercise of the  | 
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   464 rights granted or affirmed under this License.  For example, you may  | 
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   465 not impose a license fee, royalty, or other charge for exercise of  | 
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   466 rights granted under this License, and you may not initiate litigation  | 
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   467 (including a cross-claim or counterclaim in a lawsuit) alleging that  | 
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   468 any patent claim is infringed by making, using, selling, offering for  | 
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   469 sale, or importing the Program or any portion of it.  | 
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   470   | 
         | 
   471   11. Patents.  | 
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   472   | 
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   473   A "contributor" is a copyright holder who authorizes use under this  | 
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   474 License of the Program or a work on which the Program is based.  The  | 
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   475 work thus licensed is called the contributor's "contributor version".  | 
         | 
   476   | 
         | 
   477   A contributor's "essential patent claims" are all patent claims  | 
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   478 owned or controlled by the contributor, whether already acquired or  | 
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   479 hereafter acquired, that would be infringed by some manner, permitted  | 
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   480 by this License, of making, using, or selling its contributor version,  | 
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   481 but do not include claims that would be infringed only as a  | 
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   482 consequence of further modification of the contributor version.  For  | 
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   483 purposes of this definition, "control" includes the right to grant  | 
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   484 patent sublicenses in a manner consistent with the requirements of  | 
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   485 this License.  | 
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   486   | 
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   487   Each contributor grants you a non-exclusive, worldwide, royalty-free  | 
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   488 patent license under the contributor's essential patent claims, to  | 
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   489 make, use, sell, offer for sale, import and otherwise run, modify and  | 
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   490 propagate the contents of its contributor version.  | 
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   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  | 
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   495 sue for patent infringement).  To "grant" such a patent license to a  | 
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   496 party means to make such an agreement or commitment not to enforce a  | 
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   497 patent against the party.  | 
         | 
   498   | 
         | 
   499   If you convey a covered work, knowingly relying on a patent license,  | 
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   500 and the Corresponding Source of the work is not available for anyone  | 
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   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,  | 
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   503 then you must either (1) cause the Corresponding Source to be so  | 
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   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  | 
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   506 consistent with the requirements of this License, to extend the patent  | 
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   507 license to downstream recipients.  "Knowingly relying" means you have  | 
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   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  | 
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   514 arrangement, you convey, or propagate by procuring conveyance of, a  | 
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   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  | 
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   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  |