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 yourfreedom to share and change it.  By contrast, the GNU General PublicLicense is intended to guarantee your freedom to share and change freesoftware--to make sure the software is free for all its users.  ThisGeneral Public License applies to most of the Free SoftwareFoundation's software and to any other program whose authors commit tousing it.  (Some other Free Software Foundation software is covered bythe GNU Library General Public License instead.)  You can apply it toyour programs, too.  When we speak of free software, we are referring to freedom, notprice.  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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 certainthat everyone understands that there is no warranty for this freesoftware.  If the software is modified by someone else and passed on, wewant its recipients to know that what they have is not the original, sothat any problems introduced by others will not reflect on the originalauthors' reputations.  Finally, any free program is threatened constantly by softwarepatents.  We wish to avoid the danger that redistributors of a freeprogram will individually obtain patent licenses, in effect making theprogram proprietary.  To prevent this, we have made it clear that anypatent must be licensed for everyone's free use or not licensed at all.  The precise terms and conditions for copying, distribution andmodification follow.		    GNU GENERAL PUBLIC LICENSE   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION  0. This License applies to any program or other work which containsa notice placed by the copyright holder saying it may be distributedunder 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 anotherlanguage.  (Hereinafter, translation is included without limitation inthe term "modification".)  Each licensee is addressed as "you".Activities other than copying, distribution and modification are notcovered by this License; they are outside its scope.  The act ofrunning the Program is not restricted, and the output from the Programis covered only if its contents constitute a work based on theProgram (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'ssource code as you receive it, in any medium, provided that youconspicuously and appropriately publish on each copy an appropriatecopyright notice and disclaimer of warranty; keep intact all thenotices that refer to this License and to the absence of any warranty;and give any other recipients of the Program a copy of this Licensealong with the Program.You may charge a fee for the physical act of transferring a copy, andyou 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 portionof it, thus forming a work based on the Program, and copy anddistribute such modifications or work under the terms of Section 1above, 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.  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But when youdistribute the same sections as part of a whole which is a work basedon the Program, the distribution of the whole must be on the terms ofthis License, whose permissions for other licensees extend to theentire 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 contestyour rights to work written entirely by you; rather, the intent is toexercise the right to control the distribution of derivative orcollective works based on the Program.In addition, mere aggregation of another work not based on the Programwith the Program (or with a work based on the Program) on a volume ofa storage or distribution medium does not bring the other work underthe 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 ofSections 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.  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