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      1  1.1  skrll 		    GNU GENERAL PUBLIC LICENSE
      2  1.1  skrll 		       Version 2, June 1991
      3  1.1  skrll 
      4  1.1  skrll  Copyright (C) 1989, 1991 Free Software Foundation, Inc.
      5  1.1  skrll      51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
      6  1.1  skrll  Everyone is permitted to copy and distribute verbatim copies
      7  1.1  skrll  of this license document, but changing it is not allowed.
      8  1.1  skrll 
      9  1.1  skrll 			    Preamble
     10  1.1  skrll 
     11  1.1  skrll   The licenses for most software are designed to take away your
     12  1.1  skrll freedom to share and change it.  By contrast, the GNU General Public
     13  1.1  skrll License is intended to guarantee your freedom to share and change free
     14  1.1  skrll software--to make sure the software is free for all its users.  This
     15  1.1  skrll General Public License applies to most of the Free Software
     16  1.1  skrll Foundation's software and to any other program whose authors commit to
     17  1.1  skrll using it.  (Some other Free Software Foundation software is covered by
     18  1.1  skrll the GNU Library General Public License instead.)  You can apply it to
     19  1.1  skrll your programs, too.
     20  1.1  skrll 
     21  1.1  skrll   When we speak of free software, we are referring to freedom, not
     22  1.1  skrll price.  Our General Public Licenses are designed to make sure that you
     23  1.1  skrll have the freedom to distribute copies of free software (and charge for
     24  1.1  skrll this service if you wish), that you receive source code or can get it
     25  1.1  skrll if you want it, that you can change the software or use pieces of it
     26  1.1  skrll in new free programs; and that you know you can do these things.
     27  1.1  skrll 
     28  1.1  skrll   To protect your rights, we need to make restrictions that forbid
     29  1.1  skrll anyone to deny you these rights or to ask you to surrender the rights.
     30  1.1  skrll These restrictions translate to certain responsibilities for you if you
     31  1.1  skrll distribute copies of the software, or if you modify it.
     32  1.1  skrll 
     33  1.1  skrll   For example, if you distribute copies of such a program, whether
     34  1.1  skrll gratis or for a fee, you must give the recipients all the rights that
     35  1.1  skrll you have.  You must make sure that they, too, receive or can get the
     36  1.1  skrll source code.  And you must show them these terms so they know their
     37  1.1  skrll rights.
     38  1.1  skrll 
     39  1.1  skrll   We protect your rights with two steps: (1) copyright the software, and
     40  1.1  skrll (2) offer you this license which gives you legal permission to copy,
     41  1.1  skrll distribute and/or modify the software.
     42  1.1  skrll 
     43  1.1  skrll   Also, for each author's protection and ours, we want to make certain
     44  1.1  skrll that everyone understands that there is no warranty for this free
     45  1.1  skrll software.  If the software is modified by someone else and passed on, we
     46  1.1  skrll want its recipients to know that what they have is not the original, so
     47  1.1  skrll that any problems introduced by others will not reflect on the original
     48  1.1  skrll authors' reputations.
     49  1.1  skrll 
     50  1.1  skrll   Finally, any free program is threatened constantly by software
     51  1.1  skrll patents.  We wish to avoid the danger that redistributors of a free
     52  1.1  skrll program will individually obtain patent licenses, in effect making the
     53  1.1  skrll program proprietary.  To prevent this, we have made it clear that any
     54  1.1  skrll patent must be licensed for everyone's free use or not licensed at all.
     55  1.1  skrll 
     56  1.1  skrll   The precise terms and conditions for copying, distribution and
     57  1.1  skrll modification follow.
     58  1.1  skrll 
     60  1.1  skrll 		    GNU GENERAL PUBLIC LICENSE
     61  1.1  skrll    TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
     62  1.1  skrll 
     63  1.1  skrll   0. This License applies to any program or other work which contains
     64  1.1  skrll a notice placed by the copyright holder saying it may be distributed
     65  1.1  skrll under the terms of this General Public License.  The "Program", below,
     66  1.1  skrll refers to any such program or work, and a "work based on the Program"
     67  1.1  skrll means either the Program or any derivative work under copyright law:
     68  1.1  skrll that is to say, a work containing the Program or a portion of it,
     69  1.1  skrll either verbatim or with modifications and/or translated into another
     70  1.1  skrll language.  (Hereinafter, translation is included without limitation in
     71  1.1  skrll the term "modification".)  Each licensee is addressed as "you".
     72  1.1  skrll 
     73  1.1  skrll Activities other than copying, distribution and modification are not
     74  1.1  skrll covered by this License; they are outside its scope.  The act of
     75  1.1  skrll running the Program is not restricted, and the output from the Program
     76  1.1  skrll is covered only if its contents constitute a work based on the
     77  1.1  skrll Program (independent of having been made by running the Program).
     78  1.1  skrll Whether that is true depends on what the Program does.
     79  1.1  skrll 
     80  1.1  skrll   1. You may copy and distribute verbatim copies of the Program's
     81  1.1  skrll source code as you receive it, in any medium, provided that you
     82  1.1  skrll conspicuously and appropriately publish on each copy an appropriate
     83  1.1  skrll copyright notice and disclaimer of warranty; keep intact all the
     84  1.1  skrll notices that refer to this License and to the absence of any warranty;
     85  1.1  skrll and give any other recipients of the Program a copy of this License
     86  1.1  skrll along with the Program.
     87  1.1  skrll 
     88  1.1  skrll You may charge a fee for the physical act of transferring a copy, and
     89  1.1  skrll you may at your option offer warranty protection in exchange for a fee.
     90  1.1  skrll 
     91  1.1  skrll   2. You may modify your copy or copies of the Program or any portion
     92  1.1  skrll of it, thus forming a work based on the Program, and copy and
     93  1.1  skrll distribute such modifications or work under the terms of Section 1
     94  1.1  skrll above, provided that you also meet all of these conditions:
     95  1.1  skrll 
     96  1.1  skrll     a) You must cause the modified files to carry prominent notices
     97  1.1  skrll     stating that you changed the files and the date of any change.
     98  1.1  skrll 
     99  1.1  skrll     b) You must cause any work that you distribute or publish, that in
    100  1.1  skrll     whole or in part contains or is derived from the Program or any
    101  1.1  skrll     part thereof, to be licensed as a whole at no charge to all third
    102  1.1  skrll     parties under the terms of this License.
    103  1.1  skrll 
    104  1.1  skrll     c) If the modified program normally reads commands interactively
    105  1.1  skrll     when run, you must cause it, when started running for such
    106  1.1  skrll     interactive use in the most ordinary way, to print or display an
    107  1.1  skrll     announcement including an appropriate copyright notice and a
    108  1.1  skrll     notice that there is no warranty (or else, saying that you provide
    109  1.1  skrll     a warranty) and that users may redistribute the program under
    110  1.1  skrll     these conditions, and telling the user how to view a copy of this
    111  1.1  skrll     License.  (Exception: if the Program itself is interactive but
    112  1.1  skrll     does not normally print such an announcement, your work based on
    113  1.1  skrll     the Program is not required to print an announcement.)
    114  1.1  skrll 
    116  1.1  skrll These requirements apply to the modified work as a whole.  If
    117  1.1  skrll identifiable sections of that work are not derived from the Program,
    118  1.1  skrll and can be reasonably considered independent and separate works in
    119  1.1  skrll themselves, then this License, and its terms, do not apply to those
    120  1.1  skrll sections when you distribute them as separate works.  But when you
    121  1.1  skrll distribute the same sections as part of a whole which is a work based
    122  1.1  skrll on the Program, the distribution of the whole must be on the terms of
    123  1.1  skrll this License, whose permissions for other licensees extend to the
    124  1.1  skrll entire whole, and thus to each and every part regardless of who wrote it.
    125  1.1  skrll 
    126  1.1  skrll Thus, it is not the intent of this section to claim rights or contest
    127  1.1  skrll your rights to work written entirely by you; rather, the intent is to
    128  1.1  skrll exercise the right to control the distribution of derivative or
    129  1.1  skrll collective works based on the Program.
    130  1.1  skrll 
    131  1.1  skrll In addition, mere aggregation of another work not based on the Program
    132  1.1  skrll with the Program (or with a work based on the Program) on a volume of
    133  1.1  skrll a storage or distribution medium does not bring the other work under
    134  1.1  skrll the scope of this License.
    135  1.1  skrll 
    136  1.1  skrll   3. You may copy and distribute the Program (or a work based on it,
    137  1.1  skrll under Section 2) in object code or executable form under the terms of
    138  1.1  skrll Sections 1 and 2 above provided that you also do one of the following:
    139  1.1  skrll 
    140  1.1  skrll     a) Accompany it with the complete corresponding machine-readable
    141  1.1  skrll     source code, which must be distributed under the terms of Sections
    142  1.1  skrll     1 and 2 above on a medium customarily used for software interchange; or,
    143  1.1  skrll 
    144  1.1  skrll     b) Accompany it with a written offer, valid for at least three
    145  1.1  skrll     years, to give any third party, for a charge no more than your
    146  1.1  skrll     cost of physically performing source distribution, a complete
    147  1.1  skrll     machine-readable copy of the corresponding source code, to be
    148  1.1  skrll     distributed under the terms of Sections 1 and 2 above on a medium
    149  1.1  skrll     customarily used for software interchange; or,
    150  1.1  skrll 
    151  1.1  skrll     c) Accompany it with the information you received as to the offer
    152  1.1  skrll     to distribute corresponding source code.  (This alternative is
    153  1.1  skrll     allowed only for noncommercial distribution and only if you
    154  1.1  skrll     received the program in object code or executable form with such
    155  1.1  skrll     an offer, in accord with Subsection b above.)
    156  1.1  skrll 
    157  1.1  skrll The source code for a work means the preferred form of the work for
    158  1.1  skrll making modifications to it.  For an executable work, complete source
    159  1.1  skrll code means all the source code for all modules it contains, plus any
    160  1.1  skrll associated interface definition files, plus the scripts used to
    161  1.1  skrll control compilation and installation of the executable.  However, as a
    162  1.1  skrll special exception, the source code distributed need not include
    163  1.1  skrll anything that is normally distributed (in either source or binary
    164  1.1  skrll form) with the major components (compiler, kernel, and so on) of the
    165  1.1  skrll operating system on which the executable runs, unless that component
    166  1.1  skrll itself accompanies the executable.
    167  1.1  skrll 
    168  1.1  skrll If distribution of executable or object code is made by offering
    169  1.1  skrll access to copy from a designated place, then offering equivalent
    170  1.1  skrll access to copy the source code from the same place counts as
    171  1.1  skrll distribution of the source code, even though third parties are not
    172  1.1  skrll compelled to copy the source along with the object code.
    173  1.1  skrll 
    175  1.1  skrll   4. You may not copy, modify, sublicense, or distribute the Program
    176  1.1  skrll except as expressly provided under this License.  Any attempt
    177  1.1  skrll otherwise to copy, modify, sublicense or distribute the Program is
    178  1.1  skrll void, and will automatically terminate your rights under this License.
    179  1.1  skrll However, parties who have received copies, or rights, from you under
    180  1.1  skrll this License will not have their licenses terminated so long as such
    181  1.1  skrll parties remain in full compliance.
    182  1.1  skrll 
    183  1.1  skrll   5. You are not required to accept this License, since you have not
    184  1.1  skrll signed it.  However, nothing else grants you permission to modify or
    185  1.1  skrll distribute the Program or its derivative works.  These actions are
    186  1.1  skrll prohibited by law if you do not accept this License.  Therefore, by
    187  1.1  skrll modifying or distributing the Program (or any work based on the
    188  1.1  skrll Program), you indicate your acceptance of this License to do so, and
    189  1.1  skrll all its terms and conditions for copying, distributing or modifying
    190  1.1  skrll the Program or works based on it.
    191  1.1  skrll 
    192  1.1  skrll   6. Each time you redistribute the Program (or any work based on the
    193  1.1  skrll Program), the recipient automatically receives a license from the
    194  1.1  skrll original licensor to copy, distribute or modify the Program subject to
    195  1.1  skrll these terms and conditions.  You may not impose any further
    196  1.1  skrll restrictions on the recipients' exercise of the rights granted herein.
    197  1.1  skrll You are not responsible for enforcing compliance by third parties to
    198  1.1  skrll this License.
    199  1.1  skrll 
    200  1.1  skrll   7. If, as a consequence of a court judgment or allegation of patent
    201  1.1  skrll infringement or for any other reason (not limited to patent issues),
    202  1.1  skrll conditions are imposed on you (whether by court order, agreement or
    203  1.1  skrll otherwise) that contradict the conditions of this License, they do not
    204  1.1  skrll excuse you from the conditions of this License.  If you cannot
    205  1.1  skrll distribute so as to satisfy simultaneously your obligations under this
    206  1.1  skrll License and any other pertinent obligations, then as a consequence you
    207  1.1  skrll may not distribute the Program at all.  For example, if a patent
    208  1.1  skrll license would not permit royalty-free redistribution of the Program by
    209  1.1  skrll all those who receive copies directly or indirectly through you, then
    210  1.1  skrll the only way you could satisfy both it and this License would be to
    211  1.1  skrll refrain entirely from distribution of the Program.
    212  1.1  skrll 
    213  1.1  skrll If any portion of this section is held invalid or unenforceable under
    214  1.1  skrll any particular circumstance, the balance of the section is intended to
    215  1.1  skrll apply and the section as a whole is intended to apply in other
    216  1.1  skrll circumstances.
    217  1.1  skrll 
    218  1.1  skrll It is not the purpose of this section to induce you to infringe any
    219  1.1  skrll patents or other property right claims or to contest validity of any
    220  1.1  skrll such claims; this section has the sole purpose of protecting the
    221  1.1  skrll integrity of the free software distribution system, which is
    222  1.1  skrll implemented by public license practices.  Many people have made
    223  1.1  skrll generous contributions to the wide range of software distributed
    224  1.1  skrll through that system in reliance on consistent application of that
    225  1.1  skrll system; it is up to the author/donor to decide if he or she is willing
    226  1.1  skrll to distribute software through any other system and a licensee cannot
    227  1.1  skrll impose that choice.
    228  1.1  skrll 
    229  1.1  skrll This section is intended to make thoroughly clear what is believed to
    230  1.1  skrll be a consequence of the rest of this License.
    231  1.1  skrll 
    233  1.1  skrll   8. If the distribution and/or use of the Program is restricted in
    234  1.1  skrll certain countries either by patents or by copyrighted interfaces, the
    235  1.1  skrll original copyright holder who places the Program under this License
    236  1.1  skrll may add an explicit geographical distribution limitation excluding
    237  1.1  skrll those countries, so that distribution is permitted only in or among
    238  1.1  skrll countries not thus excluded.  In such case, this License incorporates
    239  1.1  skrll the limitation as if written in the body of this License.
    240  1.1  skrll 
    241  1.1  skrll   9. The Free Software Foundation may publish revised and/or new versions
    242  1.1  skrll of the General Public License from time to time.  Such new versions will
    243  1.1  skrll be similar in spirit to the present version, but may differ in detail to
    244  1.1  skrll address new problems or concerns.
    245  1.1  skrll 
    246  1.1  skrll Each version is given a distinguishing version number.  If the Program
    247  1.1  skrll specifies a version number of this License which applies to it and "any
    248  1.1  skrll later version", you have the option of following the terms and conditions
    249  1.1  skrll either of that version or of any later version published by the Free
    250  1.1  skrll Software Foundation.  If the Program does not specify a version number of
    251  1.1  skrll this License, you may choose any version ever published by the Free Software
    252  1.1  skrll Foundation.
    253  1.1  skrll 
    254  1.1  skrll   10. If you wish to incorporate parts of the Program into other free
    255  1.1  skrll programs whose distribution conditions are different, write to the author
    256  1.1  skrll to ask for permission.  For software which is copyrighted by the Free
    257  1.1  skrll Software Foundation, write to the Free Software Foundation; we sometimes
    258  1.1  skrll make exceptions for this.  Our decision will be guided by the two goals
    259  1.1  skrll of preserving the free status of all derivatives of our free software and
    260  1.1  skrll of promoting the sharing and reuse of software generally.
    261  1.1  skrll 
    262  1.1  skrll 			    NO WARRANTY
    263  1.1  skrll 
    264  1.1  skrll   11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
    265  1.1  skrll FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
    266  1.1  skrll OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
    267  1.1  skrll PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
    268  1.1  skrll OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
    269  1.1  skrll MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
    270  1.1  skrll TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
    271  1.1  skrll PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
    272  1.1  skrll REPAIR OR CORRECTION.
    273  1.1  skrll 
    274  1.1  skrll   12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
    275  1.1  skrll WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
    276  1.1  skrll REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
    277  1.1  skrll INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
    278  1.1  skrll OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
    279  1.1  skrll TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
    280  1.1  skrll YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
    281  1.1  skrll PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
    282  1.1  skrll POSSIBILITY OF SUCH DAMAGES.
    283  1.1  skrll 
    284  1.1  skrll 		     END OF TERMS AND CONDITIONS
    285  1.1  skrll 
    287  1.1  skrll 	    How to Apply These Terms to Your New Programs
    288  1.1  skrll 
    289  1.1  skrll   If you develop a new program, and you want it to be of the greatest
    290  1.1  skrll possible use to the public, the best way to achieve this is to make it
    291  1.1  skrll free software which everyone can redistribute and change under these terms.
    292  1.1  skrll 
    293  1.1  skrll   To do so, attach the following notices to the program.  It is safest
    294  1.1  skrll to attach them to the start of each source file to most effectively
    295  1.1  skrll convey the exclusion of warranty; and each file should have at least
    296  1.1  skrll the "copyright" line and a pointer to where the full notice is found.
    297  1.1  skrll 
    298  1.1  skrll     <one line to give the program's name and a brief idea of what it does.>
    299  1.1  skrll     Copyright (C) <year>  <name of author>
    300  1.1  skrll 
    301  1.1  skrll     This program is free software; you can redistribute it and/or modify
    302  1.1  skrll     it under the terms of the GNU General Public License as published by
    303  1.1  skrll     the Free Software Foundation; either version 2 of the License, or
    304  1.1  skrll     (at your option) any later version.
    305  1.1  skrll 
    306  1.1  skrll     This program is distributed in the hope that it will be useful,
    307  1.1  skrll     but WITHOUT ANY WARRANTY; without even the implied warranty of
    308  1.1  skrll     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    309  1.1  skrll     GNU General Public License for more details.
    310  1.1  skrll 
    311  1.1  skrll     You should have received a copy of the GNU General Public License
    312  1.1  skrll     along with this program; if not, write to the Free Software
    313  1.1  skrll     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
    314  1.1  skrll 
    315  1.1  skrll 
    316  1.1  skrll Also add information on how to contact you by electronic and paper mail.
    317  1.1  skrll 
    318  1.1  skrll If the program is interactive, make it output a short notice like this
    319  1.1  skrll when it starts in an interactive mode:
    320  1.1  skrll 
    321  1.1  skrll     Gnomovision version 69, Copyright (C) year  name of author
    322  1.1  skrll     Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    323  1.1  skrll     This is free software, and you are welcome to redistribute it
    324  1.1  skrll     under certain conditions; type `show c' for details.
    325  1.1  skrll 
    326  1.1  skrll The hypothetical commands `show w' and `show c' should show the appropriate
    327  1.1  skrll parts of the General Public License.  Of course, the commands you use may
    328  1.1  skrll be called something other than `show w' and `show c'; they could even be
    329  1.1  skrll mouse-clicks or menu items--whatever suits your program.
    330  1.1  skrll 
    331  1.1  skrll You should also get your employer (if you work as a programmer) or your
    332  1.1  skrll school, if any, to sign a "copyright disclaimer" for the program, if
    333  1.1  skrll necessary.  Here is a sample; alter the names:
    334  1.1  skrll 
    335  1.1  skrll   Yoyodyne, Inc., hereby disclaims all copyright interest in the program
    336  1.1  skrll   `Gnomovision' (which makes passes at compilers) written by James Hacker.
    337  1.1  skrll 
    338  1.1  skrll   <signature of Ty Coon>, 1 April 1989
    339  1.1  skrll   Ty Coon, President of Vice
    340  1.1  skrll 
    341             This General Public License does not permit incorporating your program into
    342             proprietary programs.  If your program is a subroutine library, you may
    343             consider it more useful to permit linking proprietary applications with the
    344             library.  If this is what you want to do, use the GNU Library General
    345             Public License instead of this License.
    346