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GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991
Free Software Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA
02111-1307 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 commit to using it.
(Some other Free Software Foundation software is covered by the GNU
Library General Public License instead.) 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 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 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. 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. Finally, any free program is
threatened constantly by software patents. We wish to avoid the danger
that redistributors of a free program will individually obtain patent
licenses, in effect making the program proprietary. To prevent this, we
have made it clear that any patent must be licensed for everyone's free
use or not licensed at all. 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 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 derivative work under copyright law: that is
to say, a work containing the Program or a portion of it, either
verbatim or with modifications and/or translated into another language.
(Hereinafter, translation is included without limitation in the term
"modification".) Each licensee is addressed as "you". Activities other
than copying, distribution and modification are not covered by this
License; they are outside its scope. The act of running the Program is
not restricted, and the output from the Program is covered only if its
contents constitute a work based on the Program (independent of having
been made by running the Program). Whether that is true depends on what
the Program does. 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. 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. 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 under the terms of Section 1
above, provided that you also meet all of these conditions: a) You must
cause the modified files to carry prominent notices stating that you
changed the files and the date of any change. 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 be licensed as a whole
at no charge to all third parties under the terms of this License. c) If
the modified program normally reads commands interactively when run, you
must cause it, when started running for such interactive use in the most
ordinary 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 License. (Exception: if the Program itself is
interactive but does not normally print such an announcement, your work
based on the Program is not required to print an announcement.) These
requirements apply to the modified work as a whole. If identifiable
sections of that work are not derived from the Program, and can be
reasonably considered independent and separate works in themselves, then
this License, and its terms, do not apply to those sections when you
distribute them as separate works. But when you distribute the same
sections as part of a whole which is a work based on the Program, the
distribution of the whole must be on the terms of this License, whose
permissions for other licensees extend to the entire whole, and thus to
each and every part regardless of who wrote it. Thus, it is not the
intent of this section to claim rights or contest your rights to work
written entirely by you; rather, the intent is to exercise the right to
control the distribution of derivative or collective works based on the
Program. In addition, mere aggregation of another work not based on the
Program with the Program (or with a work based on the Program) on a
volume of a storage or distribution medium does not bring the other work
under the scope of this License. 3. You may copy and distribute the
Program (or a work based on it, under Section 2) in object code or
executable form under the terms of Sections 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 Sections 1 and 2 above on a medium customarily used
for software interchange; or, b) Accompany it with a written offer,
valid for at least three years, to give any third party, for a charge no
more than your cost of physically performing source distribution, a
complete machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or, c) Accompany it with the
information you received as to the offer to distribute corresponding
source code. (This alternative is allowed only for noncommercial
distribution and only if you received the program in object code or
executable form with such an offer, in accord with Subsection b above.)

The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source code
means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to control
compilation and installation of the executable. However, as a special
exception, the source code distributed need not include anything that is
normally distributed (in either source or binary form) with the major
components (compiler, kernel, and so on) of the operating system on
which the executable runs, unless that component itself accompanies the
executable. If distribution of executable or object code is made by
offering access to copy from a designated place, then offering
equivalent access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code. 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 copies, or rights, from you under this License will not have
their licenses terminated so long as such parties 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. Therefore, 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 for copying, distributing or modifying the
Program or works based on it. 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. You are not responsible for enforcing compliance by third
parties to this License. 7. If, as a consequence of a court judgment or
allegation of patent infringement or for any other reason (not limited
to patent issues), conditions are imposed on you (whether by court
order, agreement or otherwise) that contradict the conditions of this
License, they do not excuse you from the conditions of this License. If
you cannot distribute so as to satisfy simultaneously your obligations
under this License and any other pertinent obligations, then as a
consequence you may not distribute the Program at all. For example, if a
patent license would not permit royalty-free redistribution of the
Program by all those who receive copies directly or indirectly through
you, then the only way you could satisfy both it and this License would
be to refrain entirely from distribution of the Program. If any portion
of this section is held invalid or unenforceable under any particular
circumstance, the balance of the section is intended to apply and the
section as a whole is intended to apply in other circumstances. It is
not the purpose of this section to induce you to infringe any patents or
other property right claims or to contest validity of any such claims;
this section has the sole purpose of protecting the integrity of the
free software distribution system, which is implemented by public
license practices. Many people have made generous contributions to the
wide range of software distributed through that system in reliance on
consistent application of that system; it is up to the author/donor to
decide if he or she is willing to distribute software through any other
system and a licensee cannot impose that choice. This section is
intended to make thoroughly clear what is believed to be a consequence
of the rest of this License. 8. If the distribution and/or use of the
Program is restricted in certain countries either by patents or by
copyrighted interfaces, the original copyright holder who places the
Program under this License may add an explicit geographical distribution
limitation excluding those countries, so that distribution is permitted
only in or among countries not thus excluded. In such case, this License
incorporates the limitation as if written in the body of this License.

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. Each version is given a distinguishing
version number. If the Program specifies a version number of this
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 this License, you may choose any
version ever published by the Free Software Foundation. 10. 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

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 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 the public, 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)
<year>
<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 2 of the License, 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., 59 Temple Place, Suite 330,
Boston, MA 02111-1307 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) year 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 is a sample;
alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest
in the program `Gnomovision' (which makes passes at compilers) written
by James Hacker.

<signature of Ty Coon>
, 1 April 1989 Ty Coon, President of Vice This General Public License
does not permit incorporating your program into proprietary programs. If
your program is a subroutine library, you may consider it more useful to
permit linking proprietary applications with the library. If this is
what you want to do, use the GNU Library General Public License instead
of this License.