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      GNU GENERAL PUBLIC LICENSE  | 
  
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      Version 3, 29 June 2007  | 
  
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       | 
  
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      Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>  | 
  
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      Everyone is permitted to copy and distribute verbatim copies  | 
  
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      of this license document, but changing it is not allowed.  | 
  
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       | 
  
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      Preamble  | 
  
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       | 
  
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      The GNU General Public License is a free, copyleft license for  | 
  
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      software and other kinds of works.  | 
  
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       | 
  
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      The licenses for most software and other practical works are designed  | 
  
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      to take away your freedom to share and change the works. By contrast,  | 
  
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      the GNU General Public License is intended to guarantee your freedom to  | 
  
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      share and change all versions of a program--to make sure it remains free  | 
  
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      software for all its users. We, the Free Software Foundation, use the  | 
  
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      GNU General Public License for most of our software; it applies also to  | 
  
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      any other work released this way by its authors. You can apply it to  | 
  
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      your programs, too.  | 
  
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       | 
  
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      When we speak of free software, we are referring to freedom, not  | 
  
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      price. Our General Public Licenses are designed to make sure that you  | 
  
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      have the freedom to distribute copies of free software (and charge for  | 
  
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      them if you wish), that you receive source code or can get it if you  | 
  
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      want it, that you can change the software or use pieces of it in new  | 
  
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      free programs, and that you know you can do these things.  | 
  
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       | 
  
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      To protect your rights, we need to prevent others from denying you  | 
  
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      these rights or asking you to surrender the rights. Therefore, you have  | 
  
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      certain responsibilities if you distribute copies of the software, or if  | 
  
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      you modify it: responsibilities to respect the freedom of others.  | 
  
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       | 
  
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      For example, if you distribute copies of such a program, whether  | 
  
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      gratis or for a fee, you must pass on to the recipients the same  | 
  
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      freedoms that you received. You must make sure that they, too, receive  | 
  
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      or can get the source code. And you must show them these terms so they  | 
  
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      know their rights.  | 
  
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       | 
  
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      Developers that use the GNU GPL protect your rights with two steps:  | 
  
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      (1) assert copyright on the software, and (2) offer you this License  | 
  
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      giving you legal permission to copy, distribute and/or modify it.  | 
  
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       | 
  
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      For the developers' and authors' protection, the GPL clearly explains  | 
  
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      that there is no warranty for this free software. For both users' and  | 
  
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      authors' sake, the GPL requires that modified versions be marked as  | 
  
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      changed, so that their problems will not be attributed erroneously to  | 
  
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      authors of previous versions.  | 
  
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       | 
  
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      Some devices are designed to deny users access to install or run  | 
  
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      modified versions of the software inside them, although the manufacturer  | 
  
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      can do so. This is fundamentally incompatible with the aim of  | 
  
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      protecting users' freedom to change the software. The systematic  | 
  
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      pattern of such abuse occurs in the area of products for individuals to  | 
  
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      use, which is precisely where it is most unacceptable. Therefore, we  | 
  
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      have designed this version of the GPL to prohibit the practice for those  | 
  
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      products. If such problems arise substantially in other domains, we  | 
  
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      stand ready to extend this provision to those domains in future versions  | 
  
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      of the GPL, as needed to protect the freedom of users.  | 
  
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       | 
  
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      Finally, every program is threatened constantly by software patents.  | 
  
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      States should not allow patents to restrict development and use of  | 
  
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      software on general-purpose computers, but in those that do, we wish to  | 
  
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      avoid the special danger that patents applied to a free program could  | 
  
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      make it effectively proprietary. To prevent this, the GPL assures that  | 
  
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      patents cannot be used to render the program non-free.  | 
  
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       | 
  
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      The precise terms and conditions for copying, distribution and  | 
  
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      modification follow.  | 
  
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       | 
  
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      TERMS AND CONDITIONS  | 
  
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       | 
  
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      0. Definitions.  | 
  
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       | 
  
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      "This License" refers to version 3 of the GNU General Public License.  | 
  
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       | 
  
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      "Copyright" also means copyright-like laws that apply to other kinds of  | 
  
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      works, such as semiconductor masks.  | 
  
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       | 
  
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      "The Program" refers to any copyrightable work licensed under this  | 
  
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      License. Each licensee is addressed as "you". "Licensees" and  | 
  
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      "recipients" may be individuals or organizations.  | 
  
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       | 
  
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      To "modify" a work means to copy from or adapt all or part of the work  | 
  
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      in a fashion requiring copyright permission, other than the making of an  | 
  
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      exact copy. The resulting work is called a "modified version" of the  | 
  
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      earlier work or a work "based on" the earlier work.  | 
  
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       | 
  
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      A "covered work" means either the unmodified Program or a work based  | 
  
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      on the Program.  | 
  
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       | 
  
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      To "propagate" a work means to do anything with it that, without  | 
  
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      permission, would make you directly or secondarily liable for  | 
  
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      infringement under applicable copyright law, except executing it on a  | 
  
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      computer or modifying a private copy. Propagation includes copying,  | 
  
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      distribution (with or without modification), making available to the  | 
  
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      public, and in some countries other activities as well.  | 
  
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       | 
  
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      To "convey" a work means any kind of propagation that enables other  | 
  
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      parties to make or receive copies. Mere interaction with a user through  | 
  
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      a computer network, with no transfer of a copy, is not conveying.  | 
  
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       | 
  
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      An interactive user interface displays "Appropriate Legal Notices"  | 
  
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      to the extent that it includes a convenient and prominently visible  | 
  
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      feature that (1) displays an appropriate copyright notice, and (2)  | 
  
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      tells the user that there is no warranty for the work (except to the  | 
  
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      extent that warranties are provided), that licensees may convey the  | 
  
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      work under this License, and how to view a copy of this License. If  | 
  
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      the interface presents a list of user commands or options, such as a  | 
  
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      menu, a prominent item in the list meets this criterion.  | 
  
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       | 
  
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      1. Source Code.  | 
  
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       | 
  
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      The "source code" for a work means the preferred form of the work  | 
  
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      for making modifications to it. "Object code" means any non-source  | 
  
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      form of a work.  | 
  
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       | 
  
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      A "Standard Interface" means an interface that either is an official  | 
  
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      standard defined by a recognized standards body, or, in the case of  | 
  
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      interfaces specified for a particular programming language, one that  | 
  
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      is widely used among developers working in that language.  | 
  
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       | 
  
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      The "System Libraries" of an executable work include anything, other  | 
  
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      than the work as a whole, that (a) is included in the normal form of  | 
  
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      packaging a Major Component, but which is not part of that Major  | 
  
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      Component, and (b) serves only to enable use of the work with that  | 
  
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      Major Component, or to implement a Standard Interface for which an  | 
  
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      implementation is available to the public in source code form. A  | 
  
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      "Major Component", in this context, means a major essential component  | 
  
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      (kernel, window system, and so on) of the specific operating system  | 
  
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      (if any) on which the executable work runs, or a compiler used to  | 
  
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      produce the work, or an object code interpreter used to run it.  | 
  
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       | 
  
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      The "Corresponding Source" for a work in object code form means all  | 
  
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      the source code needed to generate, install, and (for an executable  | 
  
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      work) run the object code and to modify the work, including scripts to  | 
  
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      control those activities. However, it does not include the work's  | 
  
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      System Libraries, or general-purpose tools or generally available free  | 
  
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      programs which are used unmodified in performing those activities but  | 
  
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      which are not part of the work. For example, Corresponding Source  | 
  
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      includes interface definition files associated with source files for  | 
  
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      the work, and the source code for shared libraries and dynamically  | 
  
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      linked subprograms that the work is specifically designed to require,  | 
  
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      such as by intimate data communication or control flow between those  | 
  
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      subprograms and other parts of the work.  | 
  
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       | 
  
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      The Corresponding Source need not include anything that users  | 
  
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      can regenerate automatically from other parts of the Corresponding  | 
  
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      Source.  | 
  
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       | 
  
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      The Corresponding Source for a work in source code form is that  | 
  
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      same work.  | 
  
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       | 
  
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      2. Basic Permissions.  | 
  
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       | 
  
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      All rights granted under this License are granted for the term of  | 
  
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      copyright on the Program, and are irrevocable provided the stated  | 
  
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      conditions are met. This License explicitly affirms your unlimited  | 
  
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      permission to run the unmodified Program. The output from running a  | 
  
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      covered work is covered by this License only if the output, given its  | 
  
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      content, constitutes a covered work. This License acknowledges your  | 
  
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      rights of fair use or other equivalent, as provided by copyright law.  | 
  
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       | 
  
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      You may make, run and propagate covered works that you do not  | 
  
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      convey, without conditions so long as your license otherwise remains  | 
  
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      in force. You may convey covered works to others for the sole purpose  | 
  
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      of having them make modifications exclusively for you, or provide you  | 
  
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      with facilities for running those works, provided that you comply with  | 
  
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      the terms of this License in conveying all material for which you do  | 
  
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      not control copyright. Those thus making or running the covered works  | 
  
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      for you must do so exclusively on your behalf, under your direction  | 
  
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      and control, on terms that prohibit them from making any copies of  | 
  
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      your copyrighted material outside their relationship with you.  | 
  
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       | 
  
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      Conveying under any other circumstances is permitted solely under  | 
  
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      the conditions stated below. Sublicensing is not allowed; section 10  | 
  
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      makes it unnecessary.  | 
  
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       | 
  
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      3. Protecting Users' Legal Rights From Anti-Circumvention Law.  | 
  
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       | 
  
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      No covered work shall be deemed part of an effective technological  | 
  
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      measure under any applicable law fulfilling obligations under article  | 
  
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      11 of the WIPO copyright treaty adopted on 20 December 1996, or  | 
  
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      similar laws prohibiting or restricting circumvention of such  | 
  
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      measures.  | 
  
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       | 
  
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      When you convey a covered work, you waive any legal power to forbid  | 
  
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      circumvention of technological measures to the extent such circumvention  | 
  
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      is effected by exercising rights under this License with respect to  | 
  
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      the covered work, and you disclaim any intention to limit operation or  | 
  
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      modification of the work as a means of enforcing, against the work's  | 
  
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      users, your or third parties' legal rights to forbid circumvention of  | 
  
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      technological measures.  | 
  
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       | 
  
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      4. Conveying Verbatim Copies.  | 
  
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       | 
  
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      You may convey verbatim copies of the Program's source code as you  | 
  
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      receive it, in any medium, provided that you conspicuously and  | 
  
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      appropriately publish on each copy an appropriate copyright notice;  | 
  
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      keep intact all notices stating that this License and any  | 
  
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      non-permissive terms added in accord with section 7 apply to the code;  | 
  
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      keep intact all notices of the absence of any warranty; and give all  | 
  
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      recipients a copy of this License along with the Program.  | 
  
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       | 
  
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      You may charge any price or no price for each copy that you convey,  | 
  
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      and you may offer support or warranty protection for a fee.  | 
  
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       | 
  
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      5. Conveying Modified Source Versions.  | 
  
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       | 
  
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      You may convey a work based on the Program, or the modifications to  | 
  
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      produce it from the Program, in the form of source code under the  | 
  
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      terms of section 4, provided that you also meet all of these conditions:  | 
  
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       | 
  
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      a) The work must carry prominent notices stating that you modified  | 
  
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      it, and giving a relevant date.  | 
  
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       | 
  
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      b) The work must carry prominent notices stating that it is  | 
  
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      released under this License and any conditions added under section  | 
  
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      7. This requirement modifies the requirement in section 4 to  | 
  
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      "keep intact all notices".  | 
  
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       | 
  
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      c) You must license the entire work, as a whole, under this  | 
  
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      License to anyone who comes into possession of a copy. This  | 
  
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      License will therefore apply, along with any applicable section 7  | 
  
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      additional terms, to the whole of the work, and all its parts,  | 
  
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      regardless of how they are packaged. This License gives no  | 
  
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      permission to license the work in any other way, but it does not  | 
  
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      invalidate such permission if you have separately received it.  | 
  
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       | 
  
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      d) If the work has interactive user interfaces, each must display  | 
  
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      Appropriate Legal Notices; however, if the Program has interactive  | 
  
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      interfaces that do not display Appropriate Legal Notices, your  | 
  
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      work need not make them do so.  | 
  
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       | 
  
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      A compilation of a covered work with other separate and independent  | 
  
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      works, which are not by their nature extensions of the covered work,  | 
  
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      and which are not combined with it such as to form a larger program,  | 
  
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      in or on a volume of a storage or distribution medium, is called an  | 
  
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      "aggregate" if the compilation and its resulting copyright are not  | 
  
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      used to limit the access or legal rights of the compilation's users  | 
  
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      beyond what the individual works permit. Inclusion of a covered work  | 
  
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      in an aggregate does not cause this License to apply to the other  | 
  
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      parts of the aggregate.  | 
  
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       | 
  
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      6. Conveying Non-Source Forms.  | 
  
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       | 
  
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      You may convey a covered work in object code form under the terms  | 
  
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      of sections 4 and 5, provided that you also convey the  | 
  
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      machine-readable Corresponding Source under the terms of this License,  | 
  
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      in one of these ways:  | 
  
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       | 
  
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      a) Convey the object code in, or embodied in, a physical product  | 
  
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      (including a physical distribution medium), accompanied by the  | 
  
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      Corresponding Source fixed on a durable physical medium  | 
  
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      customarily used for software interchange.  | 
  
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       | 
  
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      b) Convey the object code in, or embodied in, a physical product  | 
  
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      (including a physical distribution medium), accompanied by a  | 
  
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      written offer, valid for at least three years and valid for as  | 
  
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      long as you offer spare parts or customer support for that product  | 
  
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      model, to give anyone who possesses the object code either (1) a  | 
  
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      copy of the Corresponding Source for all the software in the  | 
  
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      product that is covered by this License, on a durable physical  | 
  
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      medium customarily used for software interchange, for a price no  | 
  
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      more than your reasonable cost of physically performing this  | 
  
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      conveying of source, or (2) access to copy the  | 
  
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      Corresponding Source from a network server at no charge.  | 
  
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       | 
  
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      c) Convey individual copies of the object code with a copy of the  | 
  
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      written offer to provide the Corresponding Source. This  | 
  
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      alternative is allowed only occasionally and noncommercially, and  | 
  
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      only if you received the object code with such an offer, in accord  | 
  
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      with subsection 6b.  | 
  
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       | 
  
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      d) Convey the object code by offering access from a designated  | 
  
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      place (gratis or for a charge), and offer equivalent access to the  | 
  
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      Corresponding Source in the same way through the same place at no  | 
  
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      further charge. You need not require recipients to copy the  | 
  
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      Corresponding Source along with the object code. If the place to  | 
  
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      copy the object code is a network server, the Corresponding Source  | 
  
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      may be on a different server (operated by you or a third party)  | 
  
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      that supports equivalent copying facilities, provided you maintain  | 
  
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      clear directions next to the object code saying where to find the  | 
  
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      Corresponding Source. Regardless of what server hosts the  | 
  
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      Corresponding Source, you remain obligated to ensure that it is  | 
  
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      available for as long as needed to satisfy these requirements.  | 
  
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       | 
  
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      e) Convey the object code using peer-to-peer transmission, provided  | 
  
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      you inform other peers where the object code and Corresponding  | 
  
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      Source of the work are being offered to the general public at no  | 
  
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      charge under subsection 6d.  | 
  
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       | 
  
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      A separable portion of the object code, whose source code is excluded  | 
  
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      from the Corresponding Source as a System Library, need not be  | 
  
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      included in conveying the object code work.  | 
  
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       | 
  
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      A "User Product" is either (1) a "consumer product", which means any  | 
  
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      tangible personal property which is normally used for personal, family,  | 
  
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      or household purposes, or (2) anything designed or sold for incorporation  | 
  
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      into a dwelling. In determining whether a product is a consumer product,  | 
  
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      doubtful cases shall be resolved in favor of coverage. For a particular  | 
  
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      product received by a particular user, "normally used" refers to a  | 
  
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      typical or common use of that class of product, regardless of the status  | 
  
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      of the particular user or of the way in which the particular user  | 
  
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      actually uses, or expects or is expected to use, the product. A product  | 
  
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      is a consumer product regardless of whether the product has substantial  | 
  
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      commercial, industrial or non-consumer uses, unless such uses represent  | 
  
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      the only significant mode of use of the product.  | 
  
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       | 
  
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      "Installation Information" for a User Product means any methods,  | 
  
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      procedures, authorization keys, or other information required to install  | 
  
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      and execute modified versions of a covered work in that User Product from  | 
  
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      a modified version of its Corresponding Source. The information must  | 
  
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      suffice to ensure that the continued functioning of the modified object  | 
  
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      code is in no case prevented or interfered with solely because  | 
  
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      modification has been made.  | 
  
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       | 
  
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      If you convey an object code work under this section in, or with, or  | 
  
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      specifically for use in, a User Product, and the conveying occurs as  | 
  
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      part of a transaction in which the right of possession and use of the  | 
  
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      User Product is transferred to the recipient in perpetuity or for a  | 
  
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      fixed term (regardless of how the transaction is characterized), the  | 
  
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      Corresponding Source conveyed under this section must be accompanied  | 
  
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      by the Installation Information. But this requirement does not apply  | 
  
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      if neither you nor any third party retains the ability to install  | 
  
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      modified object code on the User Product (for example, the work has  | 
  
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      been installed in ROM).  | 
  
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       | 
  
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      The requirement to provide Installation Information does not include a  | 
  
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      requirement to continue to provide support service, warranty, or updates  | 
  
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      for a work that has been modified or installed by the recipient, or for  | 
  
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      the User Product in which it has been modified or installed. Access to a  | 
  
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      network may be denied when the modification itself materially and  | 
  
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      adversely affects the operation of the network or violates the rules and  | 
  
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      protocols for communication across the network.  | 
  
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       | 
  
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      Corresponding Source conveyed, and Installation Information provided,  | 
  
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      in accord with this section must be in a format that is publicly  | 
  
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      documented (and with an implementation available to the public in  | 
  
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      source code form), and must require no special password or key for  | 
  
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      unpacking, reading or copying.  | 
  
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       | 
  
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      7. Additional Terms.  | 
  
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       | 
  
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      "Additional permissions" are terms that supplement the terms of this  | 
  
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      License by making exceptions from one or more of its conditions.  | 
  
| 347 | 
      Additional permissions that are applicable to the entire Program shall  | 
  
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      be treated as though they were included in this License, to the extent  | 
  
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      that they are valid under applicable law. If additional permissions  | 
  
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      apply only to part of the Program, that part may be used separately  | 
  
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      under those permissions, but the entire Program remains governed by  | 
  
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      this License without regard to the additional permissions.  | 
  
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       | 
  
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      When you convey a copy of a covered work, you may at your option  | 
  
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      remove any additional permissions from that copy, or from any part of  | 
  
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      it. (Additional permissions may be written to require their own  | 
  
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      removal in certain cases when you modify the work.) You may place  | 
  
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      additional permissions on material, added by you to a covered work,  | 
  
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      for which you have or can give appropriate copyright permission.  | 
  
| 360 | 
       | 
  
| 361 | 
      Notwithstanding any other provision of this License, for material you  | 
  
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      add to a covered work, you may (if authorized by the copyright holders of  | 
  
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      that material) supplement the terms of this License with terms:  | 
  
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       | 
  
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      a) Disclaiming warranty or limiting liability differently from the  | 
  
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      terms of sections 15 and 16 of this License; or  | 
  
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       | 
  
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      b) Requiring preservation of specified reasonable legal notices or  | 
  
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      author attributions in that material or in the Appropriate Legal  | 
  
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      Notices displayed by works containing it; or  | 
  
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       | 
  
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      c) Prohibiting misrepresentation of the origin of that material, or  | 
  
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      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>.  |