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        		    GNU GENERAL PUBLIC LICENSE
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        		       Version 2, June 1991
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         Copyright (C) 1989, 1991 Free Software Foundation, Inc.
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                               59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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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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        			    Preamble
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          The licenses for most software are designed to take away your
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        freedom to share and change it.  By contrast, the GNU General Public
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        License is intended to guarantee your freedom to share and change free
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        software--to make sure the software is free for all its users.  This
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        General Public License applies to most of the Free Software
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        Foundation's software and to any other program whose authors commit to
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        using it.  (Some other Free Software Foundation software is covered by
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        the GNU Library General Public License instead.)  You can apply it to
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        your programs, too.
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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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        this service if you wish), that you receive source code or can get it
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        if you want it, that you can change the software or use pieces of it
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        in new free programs; and that you know you can do these things.
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          To protect your rights, we need to make restrictions that forbid
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        anyone to deny you these rights or to ask you to surrender the rights.
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        These restrictions translate to certain responsibilities for you if you
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        distribute copies of the software, or if you modify it.
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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 give the recipients all the rights that
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        you have.  You must make sure that they, too, receive or can get the
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        source code.  And you must show them these terms so they know their
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        rights.
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          We protect your rights with two steps: (1) copyright the software, and
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        (2) offer you this license which gives you legal permission to copy,
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        distribute and/or modify the software.
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          Also, for each author's protection and ours, we want to make certain
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        that everyone understands that there is no warranty for this free
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        software.  If the software is modified by someone else and passed on, we
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        want its recipients to know that what they have is not the original, so
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        that any problems introduced by others will not reflect on the original
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        authors' reputations.
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          Finally, any free program is threatened constantly by software
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        patents.  We wish to avoid the danger that redistributors of a free
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        program will individually obtain patent licenses, in effect making the
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        program proprietary.  To prevent this, we have made it clear that any
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        patent must be licensed for everyone's free use or not licensed at all.
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          The precise terms and conditions for copying, distribution and
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        modification follow.
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        		    GNU GENERAL PUBLIC LICENSE
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           TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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          0. This License applies to any program or other work which contains
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        a notice placed by the copyright holder saying it may be distributed
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        under the terms of this General Public License.  The "Program", below,
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        refers to any such program or work, and a "work based on the Program"
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        means either the Program or any derivative work under copyright law:
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        that is to say, a work containing the Program or a portion of it,
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        either verbatim or with modifications and/or translated into another
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        language.  (Hereinafter, translation is included without limitation in
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        the term "modification".)  Each licensee is addressed as "you".
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        Activities other than copying, distribution and modification are not
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        covered by this License; they are outside its scope.  The act of
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        running the Program is not restricted, and the output from the Program
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        is covered only if its contents constitute a work based on the
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        Program (independent of having been made by running the Program).
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        Whether that is true depends on what the Program does.
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          1. You may copy and distribute verbatim copies of the Program's
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        source code as you receive it, in any medium, provided that you
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        conspicuously and appropriately publish on each copy an appropriate
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        copyright notice and disclaimer of warranty; keep intact all the
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        notices that refer to this License and to the absence of any warranty;
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        and give any other recipients of the Program a copy of this License
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        along with the Program.
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        You may charge a fee for the physical act of transferring a copy, and
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        you may at your option offer warranty protection in exchange for a fee.
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          2. You may modify your copy or copies of the Program or any portion
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        of it, thus forming a work based on the Program, and copy and
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        distribute such modifications or work under the terms of Section 1
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        above, provided that you also meet all of these conditions:
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            a) You must cause the modified files to carry prominent notices
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            stating that you changed the files and the date of any change.
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            b) You must cause any work that you distribute or publish, that in
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            whole or in part contains or is derived from the Program or any
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            part thereof, to be licensed as a whole at no charge to all third
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            parties under the terms of this License.
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            c) If the modified program normally reads commands interactively
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            when run, you must cause it, when started running for such
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            interactive use in the most ordinary way, to print or display an
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            announcement including an appropriate copyright notice and a
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            notice that there is no warranty (or else, saying that you provide
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            a warranty) and that users may redistribute the program under
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            these conditions, and telling the user how to view a copy of this
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            License.  (Exception: if the Program itself is interactive but
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            does not normally print such an announcement, your work based on
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            the Program is not required to print an announcement.)
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        These requirements apply to the modified work as a whole.  If
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        identifiable sections of that work are not derived from the Program,
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        and can be reasonably considered independent and separate works in
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        themselves, then this License, and its terms, do not apply to those
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        sections when you distribute them as separate works.  But when you
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        distribute the same sections as part of a whole which is a work based
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        on the Program, the distribution of the whole must be on the terms of
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        this License, whose permissions for other licensees extend to the
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        entire whole, and thus to each and every part regardless of who wrote it.
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        Thus, it is not the intent of this section to claim rights or contest
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        your rights to work written entirely by you; rather, the intent is to
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        exercise the right to control the distribution of derivative or
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        collective works based on the Program.
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        In addition, mere aggregation of another work not based on the Program
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        with the Program (or with a work based on the Program) on a volume of
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        a storage or distribution medium does not bring the other work under
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        the scope of this License.
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          3. You may copy and distribute the Program (or a work based on it,
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        under Section 2) in object code or executable form under the terms of
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        Sections 1 and 2 above provided that you also do one of the following:
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            a) Accompany it with the complete corresponding machine-readable
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            source code, which must be distributed under the terms of Sections
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            1 and 2 above on a medium customarily used for software interchange; or,
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            b) Accompany it with a written offer, valid for at least three
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            years, to give any third party, for a charge no more than your
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            cost of physically performing source distribution, a complete
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            machine-readable copy of the corresponding source code, to be
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            distributed under the terms of Sections 1 and 2 above on a medium
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            customarily used for software interchange; or,
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            c) Accompany it with the information you received as to the offer
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            to distribute corresponding source code.  (This alternative is
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            allowed only for noncommercial distribution and only if you
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            received the program in object code or executable form with such
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            an offer, in accord with Subsection b above.)
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        The source code for a work means the preferred form of the work for
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        making modifications to it.  For an executable work, complete source
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        code means all the source code for all modules it contains, plus any
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        associated interface definition files, plus the scripts used to
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        control compilation and installation of the executable.  However, as a
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        special exception, the source code distributed need not include
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        anything that is normally distributed (in either source or binary
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        form) with the major components (compiler, kernel, and so on) of the
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        operating system on which the executable runs, unless that component
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        itself accompanies the executable.
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        If distribution of executable or object code is made by offering
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        access to copy from a designated place, then offering equivalent
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        access to copy the source code from the same place counts as
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        distribution of the source code, even though third parties are not
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        compelled to copy the source along with the object code.
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          4. You may not copy, modify, sublicense, or distribute the Program
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        except as expressly provided under this License.  Any attempt
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        otherwise to copy, modify, sublicense or distribute the Program is
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        void, and will automatically terminate your rights under this License.
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        However, parties who have received copies, or rights, from you under
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        this License will not have their licenses terminated so long as such
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        parties remain in full compliance.
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          5. You are not required to accept this License, since you have not
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        signed it.  However, nothing else grants you permission to modify or
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        distribute the Program or its derivative works.  These actions are
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        prohibited by law if you do not accept this License.  Therefore, by
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        modifying or distributing the Program (or any work based on the
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        Program), you indicate your acceptance of this License to do so, and
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        all its terms and conditions for copying, distributing or modifying
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        the Program or works based on it.
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          6. Each time you redistribute the Program (or any work based on the
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        Program), the recipient automatically receives a license from the
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        original licensor to copy, distribute or modify the Program subject to
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        these terms and conditions.  You may not impose any further
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        restrictions on the recipients' exercise of the rights granted herein.
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        You are not responsible for enforcing compliance by third parties to
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        this License.
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          7. If, as a consequence of a court judgment or allegation of patent
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        infringement or for any other reason (not limited to patent issues),
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        conditions are imposed on you (whether by court order, agreement or
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        otherwise) that contradict the conditions of this License, they do not
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        excuse you from the conditions of this License.  If you cannot
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        distribute so as to satisfy simultaneously your obligations under this
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        License and any other pertinent obligations, then as a consequence you
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        may not distribute the Program at all.  For example, if a patent
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        license would not permit royalty-free redistribution of the Program by
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        all those who receive copies directly or indirectly through you, then
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        the only way you could satisfy both it and this License would be to
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        | 208 | 
        
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        refrain entirely from distribution of the Program.
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        | 209 | 
        
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        | 210 | 
        
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        If any portion of this section is held invalid or unenforceable under
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        | 211 | 
        
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        any particular circumstance, the balance of the section is intended to
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        | 212 | 
        
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        apply and the section as a whole is intended to apply in other
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        circumstances.
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        | 214 | 
        
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        | 215 | 
        
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        It is not the purpose of this section to induce you to infringe any
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        | 216 | 
        
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        patents or other property right claims or to contest validity of any
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        | 217 | 
        
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        such claims; this section has the sole purpose of protecting the
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        | 218 | 
        
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        integrity of the free software distribution system, which is
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        | 219 | 
        
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        implemented by public license practices.  Many people have made
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        | 220 | 
        
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        generous contributions to the wide range of software distributed
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        | 221 | 
        
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        through that system in reliance on consistent application of that
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        | 222 | 
        
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        system; it is up to the author/donor to decide if he or she is willing
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        | 223 | 
        
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        to distribute software through any other system and a licensee cannot
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        | 224 | 
        
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        impose that choice.
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        | 225 | 
        
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        | 226 | 
        
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        This section is intended to make thoroughly clear what is believed to
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        | 227 | 
        
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        be a consequence of the rest of this License.
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        | 228 | 
        
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        | 229 | 
        
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          8. If the distribution and/or use of the Program is restricted in
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        | 230 | 
        
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        certain countries either by patents or by copyrighted interfaces, the
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        | 231 | 
        
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        original copyright holder who places the Program under this License
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        | 232 | 
        
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        may add an explicit geographical distribution limitation excluding
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        | 233 | 
        
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         | 
        those countries, so that distribution is permitted only in or among
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        | 234 | 
        
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        countries not thus excluded.  In such case, this License incorporates
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        | 235 | 
        
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        the limitation as if written in the body of this License.
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        | 236 | 
        
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        | 237 | 
        
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          9. The Free Software Foundation may publish revised and/or new versions
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        | 238 | 
        
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         | 
        of the General Public License from time to time.  Such new versions will
  | 
      
      
        | 239 | 
        
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         | 
        be similar in spirit to the present version, but may differ in detail to
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        | 240 | 
        
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        address new problems or concerns.
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        | 241 | 
        
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        | 242 | 
        
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        Each version is given a distinguishing version number.  If the Program
  | 
      
      
        | 243 | 
        
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         | 
        specifies a version number of this License which applies to it and "any
  | 
      
      
        | 244 | 
        
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         | 
        later version", you have the option of following the terms and conditions
  | 
      
      
        | 245 | 
        
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         | 
        either of that version or of any later version published by the Free
  | 
      
      
        | 246 | 
        
         | 
        
         | 
        Software Foundation.  If the Program does not specify a version number of
  | 
      
      
        | 247 | 
        
         | 
        
         | 
        this License, you may choose any version ever published by the Free Software
  | 
      
      
        | 248 | 
        
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         | 
        Foundation.
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        | 249 | 
        
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        | 250 | 
        
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          10. If you wish to incorporate parts of the Program into other free
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        | 251 | 
        
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         | 
        programs whose distribution conditions are different, write to the author
  | 
      
      
        | 252 | 
        
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         | 
        to ask for permission.  For software which is copyrighted by the Free
  | 
      
      
        | 253 | 
        
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        Software Foundation, write to the Free Software Foundation; we sometimes
  | 
      
      
        | 254 | 
        
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         | 
        make exceptions for this.  Our decision will be guided by the two goals
  | 
      
      
        | 255 | 
        
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        of preserving the free status of all derivatives of our free software and
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        | 256 | 
        
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        of promoting the sharing and reuse of software generally.
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        | 257 | 
        
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        | 258 | 
        
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        			    NO WARRANTY
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        | 259 | 
        
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  | 
      
      
        | 260 | 
        
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         | 
          11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
  | 
      
      
        | 261 | 
        
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         | 
        FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
  | 
      
      
        | 262 | 
        
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         | 
        OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
  | 
      
      
        | 263 | 
        
         | 
        
         | 
        PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
  | 
      
      
        | 264 | 
        
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         | 
        OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  | 
      
      
        | 265 | 
        
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         | 
        MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
  | 
      
      
        | 266 | 
        
         | 
        
         | 
        TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
  | 
      
      
        | 267 | 
        
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         | 
        PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
  | 
      
      
        | 268 | 
        
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        REPAIR OR CORRECTION.
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        | 269 | 
        
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        | 270 | 
        
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          12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
  | 
      
      
        | 271 | 
        
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        WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
  | 
      
      
        | 272 | 
        
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        REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
  | 
      
      
        | 273 | 
        
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         | 
        INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
  | 
      
      
        | 274 | 
        
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         | 
        OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
  | 
      
      
        | 275 | 
        
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        TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
  | 
      
      
        | 276 | 
        
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         | 
        YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
  | 
      
      
        | 277 | 
        
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         | 
        PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
  | 
      
      
        | 278 | 
        
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         | 
        POSSIBILITY OF SUCH DAMAGES.
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        | 279 | 
        
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        | 280 | 
        
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         | 
        		     END OF TERMS AND CONDITIONS
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        | 281 | 
        
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        | 282 | 
        
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        	    How to Apply These Terms to Your New Programs
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        | 283 | 
        
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        | 284 | 
        
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         | 
          If you develop a new program, and you want it to be of the greatest
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        | 285 | 
        
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         | 
        possible use to the public, the best way to achieve this is to make it
  | 
      
      
        | 286 | 
        
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         | 
        free software which everyone can redistribute and change under these terms.
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        | 287 | 
        
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        | 288 | 
        
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         | 
          To do so, attach the following notices to the program.  It is safest
  | 
      
      
        | 289 | 
        
         | 
        
         | 
        to attach them to the start of each source file to most effectively
  | 
      
      
        | 290 | 
        
         | 
        
         | 
        convey the exclusion of warranty; and each file should have at least
  | 
      
      
        | 291 | 
        
         | 
        
         | 
        the "copyright" line and a pointer to where the full notice is found.
  | 
      
      
        | 292 | 
        
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        | 293 | 
        
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         | 
            <one line to give the program's name and a brief idea of what it does.>
  | 
      
      
        | 294 | 
        
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         | 
            Copyright (C) <year>  <name of author>
  | 
      
      
        | 295 | 
        
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        | 296 | 
        
         | 
        
         | 
            This program is free software; you can redistribute it and/or modify
  | 
      
      
        | 297 | 
        
         | 
        
         | 
            it under the terms of the GNU General Public License as published by
  | 
      
      
        | 298 | 
        
         | 
        
         | 
            the Free Software Foundation; either version 2 of the License, or
  | 
      
      
        | 299 | 
        
         | 
        
         | 
            (at your option) any later version.
  | 
      
      
        | 300 | 
        
         | 
        
         | 
        
  | 
      
      
        | 301 | 
        
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         | 
            This program is distributed in the hope that it will be useful,
  | 
      
      
        | 302 | 
        
         | 
        
         | 
            but WITHOUT ANY WARRANTY; without even the implied warranty of
  | 
      
      
        | 303 | 
        
         | 
        
         | 
            MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  | 
      
      
        | 304 | 
        
         | 
        
         | 
            GNU General Public License for more details.
  | 
      
      
        | 305 | 
        
         | 
        
         | 
        
  | 
      
      
        | 306 | 
        
         | 
        
         | 
            You should have received a copy of the GNU General Public License
  | 
      
      
        | 307 | 
        
         | 
        
         | 
            along with this program; if not, write to the Free Software
  | 
      
      
        | 308 | 
        
         | 
        
         | 
            Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  | 
      
      
        | 309 | 
        
         | 
        
         | 
        
  | 
      
      
        | 310 | 
        
         | 
        
         | 
        
  | 
      
      
        | 311 | 
        
         | 
        
         | 
        Also add information on how to contact you by electronic and paper mail.
  | 
      
      
        | 312 | 
        
         | 
        
         | 
        
  | 
      
      
        | 313 | 
        
         | 
        
         | 
        If the program is interactive, make it output a short notice like this
  | 
      
      
        | 314 | 
        
         | 
        
         | 
        when it starts in an interactive mode:
  | 
      
      
        | 315 | 
        
         | 
        
         | 
        
  | 
      
      
        | 316 | 
        
         | 
        
         | 
            Gnomovision version 69, Copyright (C) year name of author
  | 
      
      
        | 317 | 
        
         | 
        
         | 
            Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
  | 
      
      
        | 318 | 
        
         | 
        
         | 
            This is free software, and you are welcome to redistribute it
  | 
      
      
        | 319 | 
        
         | 
        
         | 
            under certain conditions; type `show c' for details.
  | 
      
      
        | 320 | 
        
         | 
        
         | 
        
  | 
      
      
        | 321 | 
        
         | 
        
         | 
        The hypothetical commands `show w' and `show c' should show the appropriate
  | 
      
      
        | 322 | 
        
         | 
        
         | 
        parts of the General Public License.  Of course, the commands you use may
  | 
      
      
        | 323 | 
        
         | 
        
         | 
        be called something other than `show w' and `show c'; they could even be
  | 
      
      
        | 324 | 
        
         | 
        
         | 
        mouse-clicks or menu items--whatever suits your program.
  | 
      
      
        | 325 | 
        
         | 
        
         | 
        
  | 
      
      
        | 326 | 
        
         | 
        
         | 
        You should also get your employer (if you work as a programmer) or your
  | 
      
      
        | 327 | 
        
         | 
        
         | 
        school, if any, to sign a "copyright disclaimer" for the program, if
  | 
      
      
        | 328 | 
        
         | 
        
         | 
        necessary.  Here is a sample; alter the names:
  | 
      
      
        | 329 | 
        
         | 
        
         | 
        
  | 
      
      
        | 330 | 
        
         | 
        
         | 
          Yoyodyne, Inc., hereby disclaims all copyright interest in the program
  | 
      
      
        | 331 | 
        
         | 
        
         | 
          `Gnomovision' (which makes passes at compilers) written by James Hacker.
  | 
      
      
        | 332 | 
        
         | 
        
         | 
        
  | 
      
      
        | 333 | 
        
         | 
        
         | 
          <signature of Ty Coon>, 1 April 1989
  | 
      
      
        | 334 | 
        
         | 
        
         | 
          Ty Coon, President of Vice
  | 
      
      
        | 335 | 
        
         | 
        
         | 
        
  | 
      
      
        | 336 | 
        
         | 
        
         | 
        This General Public License does not permit incorporating your program into
  | 
      
      
        | 337 | 
        
         | 
        
         | 
        proprietary programs.  If your program is a subroutine library, you may
  | 
      
      
        | 338 | 
        
         | 
        
         | 
        consider it more useful to permit linking proprietary applications with the
  | 
      
      
        | 339 | 
        
         | 
        
         | 
        library.  If this is what you want to do, use the GNU Library General
  | 
      
      
        | 340 | 
        
         | 
        
         | 
        Public License instead of this License.
  |