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License

The GNU General Public License (GPL)
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 o
r 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 g
ranted 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