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   1                      GNU GENERAL PUBLIC LICENSE
   2     TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
   3  
   4    0. This License applies to any program or other work which contains
   5  a notice placed by the copyright holder saying it may be distributed
   6  under the terms of this General Public License.  The "Program", below,
   7  refers to any such program or work, and a "work based on the Program"
   8  means either the Program or any derivative work under copyright law:
   9  that is to say, a work containing the Program or a portion of it,
  10  either verbatim or with modifications and/or translated into another
  11  language.  (Hereinafter, translation is included without limitation in
  12  the term "modification".)  Each licensee is addressed as "you".
  13  
  14  Activities other than copying, distribution and modification are not
  15  covered by this License; they are outside its scope.  The act of
  16  running the Program is not restricted, and the output from the Program
  17  is covered only if its contents constitute a work based on the
  18  Program (independent of having been made by running the Program).
  19  Whether that is true depends on what the Program does.
  20  
  21    1. You may copy and distribute verbatim copies of the Program's
  22  source code as you receive it, in any medium, provided that you
  23  conspicuously and appropriately publish on each copy an appropriate
  24  copyright notice and disclaimer of warranty; keep intact all the
  25  notices that refer to this License and to the absence of any warranty;
  26  and give any other recipients of the Program a copy of this License
  27  along with the Program.
  28  
  29  You may charge a fee for the physical act of transferring a copy, and
  30  you may at your option offer warranty protection in exchange for a fee.
  31  
  32    2. You may modify your copy or copies of the Program or any portion
  33  of it, thus forming a work based on the Program, and copy and
  34  distribute such modifications or work under the terms of Section 1
  35  above, provided that you also meet all of these conditions:
  36  
  37      a) You must cause the modified files to carry prominent notices
  38      stating that you changed the files and the date of any change.
  39  
  40      b) You must cause any work that you distribute or publish, that in
  41      whole or in part contains or is derived from the Program or any
  42      part thereof, to be licensed as a whole at no charge to all third
  43      parties under the terms of this License.
  44  
  45      c) If the modified program normally reads commands interactively
  46      when run, you must cause it, when started running for such
  47      interactive use in the most ordinary way, to print or display an
  48      announcement including an appropriate copyright notice and a
  49      notice that there is no warranty (or else, saying that you provide
  50      a warranty) and that users may redistribute the program under
  51      these conditions, and telling the user how to view a copy of this
  52      License.  (Exception: if the Program itself is interactive but
  53      does not normally print such an announcement, your work based on
  54      the Program is not required to print an announcement.)
  55  
  56  These requirements apply to the modified work as a whole.  If
  57  identifiable sections of that work are not derived from the Program,
  58  and can be reasonably considered independent and separate works in
  59  themselves, then this License, and its terms, do not apply to those
  60  sections when you distribute them as separate works.  But when you
  61  distribute the same sections as part of a whole which is a work based
  62  on the Program, the distribution of the whole must be on the terms of
  63  this License, whose permissions for other licensees extend to the
  64  entire whole, and thus to each and every part regardless of who wrote it.
  65  
  66  Thus, it is not the intent of this section to claim rights or contest
  67  your rights to work written entirely by you; rather, the intent is to
  68  exercise the right to control the distribution of derivative or
  69  collective works based on the Program.
  70  
  71  In addition, mere aggregation of another work not based on the Program
  72  with the Program (or with a work based on the Program) on a volume of
  73  a storage or distribution medium does not bring the other work under
  74  the scope of this License.
  75  
  76    3. You may copy and distribute the Program (or a work based on it,
  77  under Section 2) in object code or executable form under the terms of
  78  Sections 1 and 2 above provided that you also do one of the following:
  79  
  80      a) Accompany it with the complete corresponding machine-readable
  81      source code, which must be distributed under the terms of Sections
  82      1 and 2 above on a medium customarily used for software interchange; or,
  83  
  84      b) Accompany it with a written offer, valid for at least three
  85      years, to give any third party, for a charge no more than your
  86      cost of physically performing source distribution, a complete
  87      machine-readable copy of the corresponding source code, to be
  88      distributed under the terms of Sections 1 and 2 above on a medium
  89      customarily used for software interchange; or,
  90  
  91      c) Accompany it with the information you received as to the offer
  92      to distribute corresponding source code.  (This alternative is
  93      allowed only for noncommercial distribution and only if you
  94      received the program in object code or executable form with such
  95      an offer, in accord with Subsection b above.)
  96  
  97  The source code for a work means the preferred form of the work for
  98  making modifications to it.  For an executable work, complete source
  99  code means all the source code for all modules it contains, plus any
 100  associated interface definition files, plus the scripts used to
 101  control compilation and installation of the executable.  However, as a
 102  special exception, the source code distributed need not include
 103  anything that is normally distributed (in either source or binary
 104  form) with the major components (compiler, kernel, and so on) of the
 105  operating system on which the executable runs, unless that component
 106  itself accompanies the executable.
 107  
 108  If distribution of executable or object code is made by offering
 109  access to copy from a designated place, then offering equivalent
 110  access to copy the source code from the same place counts as
 111  distribution of the source code, even though third parties are not
 112  compelled to copy the source along with the object code.
 113  
 114    4. You may not copy, modify, sublicense, or distribute the Program
 115  except as expressly provided under this License.  Any attempt
 116  otherwise to copy, modify, sublicense or distribute the Program is
 117  void, and will automatically terminate your rights under this License.
 118  However, parties who have received copies, or rights, from you under
 119  this License will not have their licenses terminated so long as such
 120  parties remain in full compliance.
 121  
 122    5. You are not required to accept this License, since you have not
 123  signed it.  However, nothing else grants you permission to modify or
 124  distribute the Program or its derivative works.  These actions are
 125  prohibited by law if you do not accept this License.  Therefore, by
 126  modifying or distributing the Program (or any work based on the
 127  Program), you indicate your acceptance of this License to do so, and
 128  all its terms and conditions for copying, distributing or modifying
 129  the Program or works based on it.
 130  
 131    6. Each time you redistribute the Program (or any work based on the
 132  Program), the recipient automatically receives a license from the
 133  original licensor to copy, distribute or modify the Program subject to
 134  these terms and conditions.  You may not impose any further
 135  restrictions on the recipients' exercise of the rights granted herein.
 136  You are not responsible for enforcing compliance by third parties to
 137  this License.
 138  
 139    7. If, as a consequence of a court judgment or allegation of patent
 140  infringement or for any other reason (not limited to patent issues),
 141  conditions are imposed on you (whether by court order, agreement or
 142  otherwise) that contradict the conditions of this License, they do not
 143  excuse you from the conditions of this License.  If you cannot
 144  distribute so as to satisfy simultaneously your obligations under this
 145  License and any other pertinent obligations, then as a consequence you
 146  may not distribute the Program at all.  For example, if a patent
 147  license would not permit royalty-free redistribution of the Program by
 148  all those who receive copies directly or indirectly through you, then
 149  the only way you could satisfy both it and this License would be to
 150  refrain entirely from distribution of the Program.
 151  
 152  If any portion of this section is held invalid or unenforceable under
 153  any particular circumstance, the balance of the section is intended to
 154  apply and the section as a whole is intended to apply in other
 155  circumstances.
 156  
 157  It is not the purpose of this section to induce you to infringe any
 158  patents or other property right claims or to contest validity of any
 159  such claims; this section has the sole purpose of protecting the
 160  integrity of the free software distribution system, which is
 161  implemented by public license practices.  Many people have made
 162  generous contributions to the wide range of software distributed
 163  through that system in reliance on consistent application of that
 164  system; it is up to the author/donor to decide if he or she is willing
 165  to distribute software through any other system and a licensee cannot
 166  impose that choice.
 167  
 168  This section is intended to make thoroughly clear what is believed to
 169  be a consequence of the rest of this License.
 170  
 171    8. If the distribution and/or use of the Program is restricted in
 172  certain countries either by patents or by copyrighted interfaces, the
 173  original copyright holder who places the Program under this License
 174  may add an explicit geographical distribution limitation excluding
 175  those countries, so that distribution is permitted only in or among
 176  countries not thus excluded.  In such case, this License incorporates
 177  the limitation as if written in the body of this License.
 178  
 179    9. The Free Software Foundation may publish revised and/or new versions
 180  of the General Public License from time to time.  Such new versions will
 181  be similar in spirit to the present version, but may differ in detail to
 182  address new problems or concerns.
 183  
 184  Each version is given a distinguishing version number.  If the Program
 185  specifies a version number of this License which applies to it and "any
 186  later version", you have the option of following the terms and conditions
 187  either of that version or of any later version published by the Free
 188  Software Foundation.  If the Program does not specify a version number of
 189  this License, you may choose any version ever published by the Free Software
 190  Foundation.
 191  
 192    10. If you wish to incorporate parts of the Program into other free
 193  programs whose distribution conditions are different, write to the author
 194  to ask for permission.  For software which is copyrighted by the Free
 195  Software Foundation, write to the Free Software Foundation; we sometimes
 196  make exceptions for this.  Our decision will be guided by the two goals
 197  of preserving the free status of all derivatives of our free software and
 198  of promoting the sharing and reuse of software generally.
 199  
 200                              NO WARRANTY
 201  
 202    11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
 203  FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
 204  OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
 205  PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
 206  OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 207  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
 208  TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
 209  PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
 210  REPAIR OR CORRECTION.
 211  
 212    12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
 213  WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
 214  REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
 215  INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
 216  OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
 217  TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
 218  YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
 219  PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
 220  POSSIBILITY OF SUCH DAMAGES.
 221  
 222                       END OF TERMS AND CONDITIONS