                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
