GNU GENERAL PUBLIC LICENSE Version 1, February 1989

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

    0. 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".

    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 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.

    2. 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: a) cause the modified files to carry
prominent notices stating that you changed the files and the date of any change;
and b) 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). c) 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. d) 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.

    3. 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: a)
accompany it with the complete corresponding machine-readable source code, which
must be distributed under the terms of Paragraphs 1 and 2 above; or, b)
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, c) 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.

    4. 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.

    5. 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.

    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 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.

    7. 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.

    8. 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

    9. 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.

    10. 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

Appendix: How to Apply These Terms to Your New Programs

If you develop a new program, and you want it to be of the greatest possible use
to humanity, the best way to achieve this is to make it free software which
everyone can redistribute and change under these terms.

To do so, attach the following notices to the program. It is safest to attach
them to the start of each source file to most effectively convey the exclusion
of warranty; and each file should have at least the "copyright" line and a
pointer to where the full notice is found.

<one line to give the program's name and a brief idea of what it does.>
Copyright (C) 19yy <name of author>

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 1, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA.

Also add information on how to contact you by electronic and paper mail.

If the program is interactive, make it output a short notice like this when it
starts in an interactive mode:

Gnomovision version 69, Copyright (C) 19xx name of author Gnomovision comes with
ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and
you are welcome to redistribute it under certain conditions; type `show c' for
details.

The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may be
called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.

You should also get your employer (if you work as a programmer) or your school,
if any, to sign a "copyright disclaimer" for the program, if necessary. Here a
sample; alter the names:

Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (a program to direct compilers to make passes at assemblers)
written by James Hacker.

<signature of Ty Coon>, 1 April 1989 Ty Coon, President of Vice

That's all there is to it! Standard License Header Copyright (C) 19xx name of
author

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; version 1.

This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA.
