
      Copyright (C) 1989 Free Software Foundation, Inc. 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
      Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is
       not allowed.
      Preamble
      The license agreements of most software companies try to keep users at the mercy of those companies. By
       contrast, our General Public License is intended to guarantee your freedom to share and change free
       software--to make sure the software is free for all its users. The General Public License applies to
       the Free Software Foundation's software and to any other program whose authors commit to using
       it. You can use it for your programs, too.
      When we speak of free software, we are referring to freedom, not price. Specifically, the General Public
       License is designed to make sure that you have the freedom to give away or sell copies of free
       software, that you receive source code or can get it if you want it, that you can change the software
       or use pieces of it in new free programs; and that you know you can do these things.
      To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to
       ask you to surrender the rights. These restrictions translate to certain responsibilities for you if
       you distribute copies of the software, or if you modify it.
      For example, if you distribute copies of a such a program, whether gratis or for a fee, you must give the
       recipients all the rights that you have. You must make sure that they, too, receive or can get the
       source code. And you must tell them their rights.
      We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which
       gives you legal permission to copy, distribute and/or modify the software.
      Also, for each author's protection and ours, we want to make certain that everyone understands that
       there is no warranty for this free software. If the software is modified by someone else and passed
       on, we want its recipients to know that what they have is not the original, so that any problems
       introduced by others will not reflect on the original authors' reputations.
      The precise terms and conditions for copying, distribution and modification follow.
      GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
      qKI1kOl+-!	1w:
        This License Agreement applies to any program or other work which contains a notice placed by the
           copyright holder saying it may be distributed under the terms of this General Public License.
           The "Program", below, refers to any such program or work, and a "work based on
           the Program" means either the Program or any work containing the Program or a portion of
           it, either verbatim or with modifications. Each licensee is addressed as "you".
         95J@>
{p7d
        You may copy and distribute verbatim copies of the Program's source code as you receive it,
           in any medium, provided that you conspicuously and appropriately publish on each copy an
           appropriate copyright notice and disclaimer of warranty; keep intact all the notices that
           refer to this General Public License and to the absence of any warranty; and give any other
           recipients of the Program a copy of this General Public License along with the Program. You
           may charge a fee for the physical act of transferring a copy.
         *jJwj3e2he%c^u*SW
        You may modify your copy or copies of the Program or any portion of it, and copy and distribute
           such modifications under the terms of Paragraph 1 above, provided that you also do the
           following:
        Z-q	G>,tlu)`7=R)KoK
            cause the modified files to carry prominent notices stating that you changed the files and
               the date of any change; and
               Cfa0ux
            cause the whole of any work that you distribute or publish, that in whole or in part contains
               the Program or any part thereof, either with or without modifications, to be licensed at
               no charge to all third parties under the terms of this General Public License (except that
               you may choose to grant warranty protection to some or all third parties, at your
               option).
               +*p
            If the modified program normally reads commands interactively when run, you must cause it,
               when started running for such interactive use in the simplest and most usual way, to print
               or display an announcement including an appropriate copyright notice and a notice that
               there is no warranty (or else, saying that you provide a warranty) and that users may
               redistribute the program under these conditions, and telling the user how to view a copy
               of this General Public License.
               Z	y
            You may charge a fee for the physical act of transferring a copy, and you may at your option
               offer warranty protection in exchange for a fee.
            Mere aggregation of another independent work with the Program (or its derivative) on a volume
           of a storage or distribution medium does not bring the other work under the scope of these
           terms.
         ZM^w&|
        You may copy and distribute the Program (or a portion or derivative of it, under Paragraph 2) in
           object code or executable form under the terms of Paragraphs 1 and 2 above provided that you
           also do one of the following:
        N3{Ze2
3m4
            accompany it with the complete corresponding machine-readable source code, which must be
               distributed under the terms of Paragraphs 1 and 2 above; or,
               
            accompany it with a written offer, valid for at least three years, to give any third party
               free (except for a nominal charge for the cost of distribution) a complete
               machine-readable copy of the corresponding source code, to be distributed under the terms
               of Paragraphs 1 and 2 above; or,
               HF,"
            accompany it with the information you received as to where the corresponding source code may
               be obtained. (This alternative is allowed only for noncommercial distribution and only if
               you received the program in object code or executable form alone.)
            Source code for a work means the preferred form of the work for making modifications to it.
           For an executable file, complete source code means all the source code for all modules it
           contains; but, as a special exception, it need not include source code for modules which
           are standard libraries that accompany the operating system on which the executable file
           runs, or for standard header files or definitions files that accompany that operating
           system.
         juM\1oQY;7)__"K4^$
        You may not copy, modify, sublicense, distribute or transfer the Program except as expressly
           provided under this General Public License. Any attempt otherwise to copy, modify, sublicense,
           distribute or transfer the Program is void, and will automatically terminate your rights to
           use the Program under this License. However, parties who have received copies, or rights to
           use copies, from you under this General Public License will not have their licenses terminated
           so long as such parties remain in full compliance.
         ?{J6H,9:p ylX}/l"'
        By copying, distributing or modifying the Program (or any work based on the Program) you indicate
           your acceptance of this license to do so, and all its terms and conditions.
         >Iyd:(M
        Each time you redistribute the Program (or any work based on the Program), the recipient
           automatically receives a license from the original licensor to copy, distribute or modify the
           Program subject to these terms and conditions. You may not impose any further restrictions on
           the recipients' exercise of the rights granted herein.
         =y-WG
        The Free Software Foundation may publish revised and/or new versions of the General Public
           License from time to time. Such new versions will be similar in spirit to the present version,
           but may differ in detail to address new problems or concerns.
        Each version is given a distinguishing version number. If the Program specifies a version number
           of the license which applies to it and "any later version", you have the option of
           following the terms and conditions either of that version or of any later version published by
           the Free Software Foundation. If the Program does not specify a version number of the license,
           you may choose any version ever published by the Free Software Foundation.
        bs27Gg.77^iDTR&>
          If you wish to incorporate parts of the Program into other free programs whose distribution
             conditions are different, write to the author to ask for permission. For software which is
             copyrighted by the Free Software Foundation, write to the Free Software Foundation; we
             sometimes make exceptions for this. Our decision will be guided by the two goals of preserving
             the free status of all derivatives of our free software and of promoting the sharing and reuse
             of software generally.
        NO WARRANTY
            }[Goy+@XuL,8gaZyz
            BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE
             EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
             HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY
             KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
             MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
             PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE
             COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
        
          IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER,
             OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE
             LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
             ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
             DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
             FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY
             HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
      