GNU GENERAL PUBLIC LICENSE
Version 2, June 1991

 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
 51 Franklin Street, 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 licenses for most software are designed to take away your
freedom to share and change it.  By contrast, the GNU 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.  This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors use it.
You can apply it to your programs, too.

When we speak of free software, we are referring to freedom, not
price.  Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive or can get the source code
(if you want it), that you can change the software and use pieces of it
in new free programs, and that you know you are free to do these things.

To protect your rights, we need to make sure that you get these rights.
Therefore, you have certain restrictions that forbid anyone to deny you
these rights or to ask you to surrender the rights.  These restrictions
also apply to you when you distribute copies of the software or when you
modify it.

For example, if you distribute copies of 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 show them these terms so they know their
rights.

Also, for the protection of the authors' and your rights, we must make
sure that any derivative work is clearly identified.  This way, its
changes do not become ambiguous, especially when the original program
is modified.

Finally, the GPL ensures that the software remains free for all users
by requiring that any distributed version must be licensed under the
same terms.

TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

0. This License applies to any program or other work which contains
a notice placed by the copyright holder or other authorized party
telling it is licensed under the GNU General Public License. The
"work" thus licensed refers to the program or work, and all works
based on it.

1. 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 License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.

2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work, provided that you meet the
following conditions:

    a) You must cause any work that you distribute or publish,
    that in whole or in part contains or is derived from the Program
    or any part thereof, to be licensed as a whole at no charge to
    third parties under the terms of this License.

    b) You must cause any work that you distribute or publish,
    that in whole or in part contains or is derived from the Program
    or any part thereof, to carry prominent notices stating that
    you changed the files and the date of any change.

    c) You must cause any work that you distribute or publish,
    that in whole or in part contains or is derived from the Program
    or any part thereof, to be licensed under the terms of this
    License to all third parties obtaining a copy.

    d) If the modified program normally reads commands interactively
    when it is run, you must cause it, when receiving such
    interactive use, to print or display an appropriate copyright
    notice and a notice that there is no warranty (or else, saying
    that you provide a warranty).  The details of these requirements
    vary for network server programs, and are therefore shown here
    only as an example.  These requirements apply to the modified
    work.

3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form, provided that
you also do one of the following:

    a) Accompany it with the complete corresponding machine-readable
    source code, which must be distributed under the terms of Sections
    1 and 2 on a medium customarily used for software interchange; or,

    b) Accompany it with a written offer, valid for at least three
    years for FAR, to give any person who has received the Program
    (or object code) a complete machine-readable copy of the
    corresponding source code, to be distributed at no further charge,
    except for the cost of physical distribution of the copy, and
    working with a computer running it) and a copy of the License
    under which you obtained the GNU GPL.  The 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,
    minus any source code for works that are normally distributed
    with the major components (compiler, kernel, and so on) of the
    operating system on which it runs, unless such components are
    distributed with the file.

    c) Accompany it with the information you received as to the
    offer to distribute the corresponding source code.  (This
    alternative is allowed only for non-commercial
    distribution and only if you received the object code with
    such an offer, in accord with subsection b above.)

4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License.  Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received the Program from you under this
License will not have their licenses terminated so long as they
remain in full compliance.

5. You are not required to accept this License, since you have not
signed it.  However, nothing else grants you permission to modify or
distribute the Program or its derivative works.  These actions are
prohibited by law if you do not accept this License.  Accordingly,
by modifying or distributing 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.

6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor, to run the Program, to distribute copies, and to
modify it subject to this License.  The recipient has nothing more
than a license under this License, however, the recipient has not
received any license or permission to redistribute the Program
subject to any other license.

7. If, pursuant to a written request, the copyright owner of the
Program is unable to provide a system or copies as a result of a
legal claim, proceedings or a shortage of supply, the owner is not
obliged to do so.

8. If any portion of this License is held to be invalid or
unenforceable under any particular circumstance, the remainder of
this License is still in force.  Such holder is not obliged to
invalidate any other part.

9. 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.

10. Each time you redistribute the Program, along with it, you may
optionally offer and accept warranty protection in the form of a
written warranty, provided that the warranty is modified so as to be
fully compliant with this License.  To "provide a warranty" means to
provide maintenance, or support, or updates, or assurance of title, or
assurance of freedom from patent infringement, or assurance of freedom
from contamination by digital viruses or other similar things.

NO WARRANTY

11. 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.

12. 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.

END OF TERMS AND CONDITIONS
