                    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, 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