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. 

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, 
o 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

