The GNU General Public License, Version 2, June 1991 (GPLv2)
============================================================

> Copyright (C) 1989, 1991 Free Software Foundation, Inc.
> 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 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

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

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

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

**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