COPYING

GNU GENERAL PUBLIC LICENSE

   Version 3, 29 June 2007

   Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>

   Everyone  is  permitted to copy and distribute verbatim copies of this
   license document, but changing it is not allowed.

Preamble

   The  GNU  General  Public  License  is  a  free,  copyleft license for
   software and other kinds of works.

   The  licenses for most software and other practical works are designed
   to  take away your freedom to share and change the works. By contrast,
   the  GNU  General Public License is intended to guarantee your freedom
   to share and change all versions of a program--to make sure it remains
   free software for all its users. We, the Free Software Foundation, use
   the  GNU  General  Public License for most of our software; it applies
   also to any other work released this way by its authors. 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
   them  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 prevent others from denying you
   these  rights  or  asking  you to surrender the rights. Therefore, you
   have   certain  responsibilities  if  you  distribute  copies  of  the
   software, or if you modify it: responsibilities to respect the freedom
   of others.

   For  example,  if  you  distribute  copies  of such a program, whether
   gratis  or  for  a  fee,  you  must pass on to the recipients the same
   freedoms that you received. 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.

   Developers  that  use  the GNU GPL protect your rights with two steps:
   (1)  assert  copyright on the software, and (2) offer you this License
   giving you legal permission to copy, distribute and/or modify it.

   For  the developers' and authors' protection, the GPL clearly explains
   that  there is no warranty for this free software. For both users' and
   authors'  sake,  the  GPL requires that modified versions be marked as
   changed,  so that their problems will not be attributed erroneously to
   authors of previous versions.

   Some  devices  are  designed  to  deny  users access to install or run
   modified   versions   of   the  software  inside  them,  although  the
   manufacturer  can  do  so. This is fundamentally incompatible with the
   aim   of  protecting  users'  freedom  to  change  the  software.  The
   systematic  pattern  of  such abuse occurs in the area of products for
   individuals  to use, which is precisely where it is most unacceptable.
   Therefore,  we  have  designed this version of the GPL to prohibit the
   practice  for  those products. If such problems arise substantially in
   other  domains,  we  stand  ready  to  extend  this provision to those
   domains  in  future  versions  of  the  GPL,  as needed to protect the
   freedom of users.

   Finally,  every  program is threatened constantly by software patents.
   States  should  not  allow  patents to restrict development and use of
   software  on  general-purpose computers, but in those that do, we wish
   to  avoid  the  special  danger that patents applied to a free program
   could  make  it  effectively  proprietary.  To  prevent  this, the GPL
   assures that patents cannot be used to render the program non-free.

   The  precise  terms  and  conditions  for  copying,  distribution  and
   modification follow.

TERMS AND CONDITIONS

0. Definitions.

   "This License" refers to version 3 of the GNU General Public License.

   "Copyright"  also  means copyright-like laws that apply to other kinds
   of works, such as semiconductor masks.

   "The  Program"  refers  to  any copyrightable work licensed under this
   License.   Each  licensee  is  addressed  as  "you".  "Licensees"  and
   "recipients" may be individuals or organizations.

   To "modify" a work means to copy from or adapt all or part of the work
   in  a fashion requiring copyright permission, other than the making of
   an  exact  copy.  The resulting work is called a "modified version" of
   the earlier work or a work "based on" the earlier work.

   A  "covered  work" means either the unmodified Program or a work based
   on the Program.

   To  "propagate"  a  work  means  to  do anything with it that, without
   permission,   would  make  you  directly  or  secondarily  liable  for
   infringement  under applicable copyright law, except executing it on a
   computer  or  modifying  a private copy. Propagation includes copying,
   distribution  (with  or without modification), making available to the
   public, and in some countries other activities as well.

   To  "convey"  a  work means any kind of propagation that enables other
   parties  to  make  or  receive  copies.  Mere  interaction with a user
   through  a  computer  network,  with  no  transfer  of  a copy, is not
   conveying.

   An  interactive user interface displays "Appropriate Legal Notices" to
   the  extent  that  it  includes  a  convenient and prominently visible
   feature  that  (1)  displays  an appropriate copyright notice, and (2)
   tells  the  user that there is no warranty for the work (except to the
   extent  that  warranties  are provided), that licensees may convey the
   work  under  this  License, and how to view a copy of this License. If
   the  interface  presents a list of user commands or options, such as a
   menu, a prominent item in the list meets this criterion.

1. Source Code.

   The  "source code" for a work means the preferred form of the work for
   making modifications to it. "Object code" means any non-source form of
   a work.

   A  "Standard  Interface" means an interface that either is an official
   standard  defined  by  a recognized standards body, or, in the case of
   interfaces  specified  for a particular programming language, one that
   is widely used among developers working in that language.

   The  "System  Libraries" of an executable work include anything, other
   than  the  work as a whole, that (a) is included in the normal form of
   packaging  a  Major  Component,  but  which  is not part of that Major
   Component,  and  (b)  serves  only to enable use of the work with that
   Major  Component,  or  to  implement a Standard Interface for which an
   implementation  is  available  to  the  public  in source code form. A
   "Major  Component", in this context, means a major essential component
   (kernel,  window  system,  and so on) of the specific operating system
   (if  any)  on  which  the  executable work runs, or a compiler used to
   produce the work, or an object code interpreter used to run it.

   The  "Corresponding  Source"  for a work in object code form means all
   the  source  code  needed to generate, install, and (for an executable
   work) run the object code and to modify the work, including scripts to
   control  those  activities.  However,  it  does not include the work's
   System Libraries, or general-purpose tools or generally available free
   programs  which are used unmodified in performing those activities but
   which  are  not  part  of  the work. For example, Corresponding Source
   includes  interface  definition files associated with source files for
   the  work,  and  the  source code for shared libraries and dynamically
   linked  subprograms that the work is specifically designed to require,
   such  as  by intimate data communication or control flow between those
   subprograms and other parts of the work.

   The  Corresponding  Source  need  not  include anything that users can
   regenerate automatically from other parts of the Corresponding Source.

   The  Corresponding  Source for a work in source code form is that same
   work.

2. Basic Permissions.

   All  rights  granted  under  this  License are granted for the term of
   copyright  on  the  Program,  and  are irrevocable provided the stated
   conditions  are  met.  This  License explicitly affirms your unlimited
   permission  to  run  the unmodified Program. The output from running a
   covered  work is covered by this License only if the output, given its
   content,  constitutes  a  covered work. This License acknowledges your
   rights of fair use or other equivalent, as provided by copyright law.

   You  may make, run and propagate covered works that you do not convey,
   without conditions so long as your license otherwise remains in force.
   You  may convey covered works to others for the sole purpose of having
   them  make  modifications  exclusively  for  you,  or provide you with
   facilities  for running those works, provided that you comply with the
   terms  of  this License in conveying all material for which you do not
   control  copyright. Those thus making or running the covered works for
   you  must  do  so exclusively on your behalf, under your direction and
   control,  on  terms  that prohibit them from making any copies of your
   copyrighted material outside their relationship with you.

   Conveying  under any other circumstances is permitted solely under the
   conditions stated below. Sublicensing is not allowed; section 10 makes
   it unnecessary.

3. Protecting Users' Legal Rights From Anti-Circumvention Law.

   No  covered  work  shall  be deemed part of an effective technological
   measure  under any applicable law fulfilling obligations under article
   11  of  the  WIPO  copyright  treaty  adopted  on 20 December 1996, or
   similar   laws   prohibiting  or  restricting  circumvention  of  such
   measures.

   When  you  convey  a covered work, you waive any legal power to forbid
   circumvention   of   technological   measures   to   the  extent  such
   circumvention is effected by exercising rights under this License with
   respect  to  the covered work, and you disclaim any intention to limit
   operation or modification of the work as a means of enforcing, against
   the  work's  users,  your  or  third  parties'  legal rights to forbid
   circumvention of technological measures.

4. Conveying Verbatim Copies.

   You  may  convey  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;
   keep   intact   all   notices   stating  that  this  License  and  any
   non-permissive terms added in accord with section 7 apply to the code;
   keep  intact  all notices of the absence of any warranty; and give all
   recipients a copy of this License along with the Program.

   You  may  charge  any price or no price for each copy that you convey,
   and you may offer support or warranty protection for a fee.

5. Conveying Modified Source Versions.

   You  may  convey  a work based on the Program, or the modifications to
   produce  it  from  the  Program,  in the form of source code under the
   terms  of  section  4,  provided  that  you  also  meet  all  of these
   conditions:
     * a) The work must carry prominent notices stating that you modified
       it, and giving a relevant date.
     * b)  The  work  must  carry  prominent  notices  stating that it is
       released under this License and any conditions added under section
       7. This requirement modifies the requirement in section 4 to "keep
       intact all notices".
     * c)  You  must  license  the  entire  work,  as a whole, under this
       License  to  anyone  who  comes  into  possession  of a copy. This
       License  will therefore apply, along with any applicable section 7
       additional  terms,  to  the  whole of the work, and all its parts,
       regardless  of  how  they  are  packaged.  This  License  gives no
       permission  to  license the work in any other way, but it does not
       invalidate such permission if you have separately received it.
     * d)  If the work has interactive user interfaces, each must display
       Appropriate Legal Notices; however, if the Program has interactive
       interfaces  that  do  not  display Appropriate Legal Notices, your
       work need not make them do so.

   A  compilation  of  a covered work with other separate and independent
   works,  which  are not by their nature extensions of the covered work,
   and  which  are not combined with it such as to form a larger program,
   in  or  on  a volume of a storage or distribution medium, is called an
   "aggregate"  if  the  compilation  and its resulting copyright are not
   used  to  limit  the access or legal rights of the compilation's users
   beyond  what  the individual works permit. Inclusion of a covered work
   in  an  aggregate  does  not  cause this License to apply to the other
   parts of the aggregate.

6. Conveying Non-Source Forms.

   You  may  convey a covered work in object code form under the terms of
   sections  4  and 5, provided that you also convey the machine-readable
   Corresponding  Source under the terms of this License, in one of these
   ways:
     * a)  Convey  the object code in, or embodied in, a physical product
       (including  a  physical  distribution  medium), accompanied by the
       Corresponding   Source   fixed   on   a  durable  physical  medium
       customarily used for software interchange.
     * b)  Convey  the object code in, or embodied in, a physical product
       (including  a  physical  distribution  medium),  accompanied  by a
       written  offer,  valid  for  at least three years and valid for as
       long as you offer spare parts or customer support for that product
       model,  to  give anyone who possesses the object code either (1) a
       copy  of  the  Corresponding  Source  for  all the software in the
       product  that  is  covered  by this License, on a durable physical
       medium  customarily  used for software interchange, for a price no
       more  than  your  reasonable  cost  of  physically performing this
       conveying  of  source,  or  (2)  access  to copy the Corresponding
       Source from a network server at no charge.
     * c)  Convey individual copies of the object code with a copy of the
       written   offer   to   provide   the  Corresponding  Source.  This
       alternative  is allowed only occasionally and noncommercially, and
       only if you received the object code with such an offer, in accord
       with subsection 6b.
     * d)  Convey  the  object  code by offering access from a designated
       place (gratis or for a charge), and offer equivalent access to the
       Corresponding  Source in the same way through the same place at no
       further  charge.  You  need  not  require  recipients  to copy the
       Corresponding  Source  along with the object code. If the place to
       copy the object code is a network server, the Corresponding Source
       may  be  on  a different server (operated by you or a third party)
       that supports equivalent copying facilities, provided you maintain
       clear  directions next to the object code saying where to find the
       Corresponding   Source.   Regardless  of  what  server  hosts  the
       Corresponding  Source,  you  remain obligated to ensure that it is
       available for as long as needed to satisfy these requirements.
     * e)   Convey  the  object  code  using  peer-to-peer  transmission,
       provided  you  inform  other  peers  where  the  object  code  and
       Corresponding  Source of the work are being offered to the general
       public at no charge under subsection 6d.

   A  separable portion of the object code, whose source code is excluded
   from  the  Corresponding  Source  as  a  System  Library,  need not be
   included in conveying the object code work.

   A  "User  Product" is either (1) a "consumer product", which means any
   tangible  personal  property  which  is  normally  used  for personal,
   family,  or  household  purposes, or (2) anything designed or sold for
   incorporation  into  a dwelling. In determining whether a product is a
   consumer  product,  doubtful  cases  shall  be  resolved  in  favor of
   coverage.  For  a  particular  product  received by a particular user,
   "normally  used"  refers  to  a typical or common use of that class of
   product, regardless of the status of the particular user or of the way
   in  which the particular user actually uses, or expects or is expected
   to  use,  the  product.  A product is a consumer product regardless of
   whether   the   product  has  substantial  commercial,  industrial  or
   non-consumer  uses,  unless  such  uses represent the only significant
   mode of use of the product.

   "Installation  Information"  for  a  User  Product  means any methods,
   procedures,  authorization  keys,  or  other  information  required to
   install  and  execute modified versions of a covered work in that User
   Product  from  a  modified  version  of  its Corresponding Source. The
   information  must  suffice to ensure that the continued functioning of
   the  modified  object  code is in no case prevented or interfered with
   solely because modification has been made.

   If  you  convey an object code work under this section in, or with, or
   specifically  for  use in, a User Product, and the conveying occurs as
   part  of a transaction in which the right of possession and use of the
   User  Product  is  transferred to the recipient in perpetuity or for a
   fixed  term  (regardless of how the transaction is characterized), the
   Corresponding  Source  conveyed under this section must be accompanied
   by  the  Installation Information. But this requirement does not apply
   if  neither  you  nor  any  third party retains the ability to install
   modified  object  code  on the User Product (for example, the work has
   been installed in ROM).

   The requirement to provide Installation Information does not include a
   requirement  to  continue  to  provide  support  service, warranty, or
   updates  for  a  work  that  has  been  modified  or  installed by the
   recipient,  or  for  the User Product in which it has been modified or
   installed.  Access  to  a  network may be denied when the modification
   itself  materially  and adversely affects the operation of the network
   or  violates  the  rules  and  protocols  for communication across the
   network.

   Corresponding  Source conveyed, and Installation Information provided,
   in  accord  with  this  section  must  be in a format that is publicly
   documented  (and  with  an  implementation  available to the public in
   source  code  form),  and  must require no special password or key for
   unpacking, reading or copying.

7. Additional Terms.

   "Additional  permissions"  are terms that supplement the terms of this
   License  by  making  exceptions  from  one  or more of its conditions.
   Additional permissions that are applicable to the entire Program shall
   be treated as though they were included in this License, to the extent
   that  they  are  valid under applicable law. If additional permissions
   apply  only  to  part of the Program, that part may be used separately
   under  those  permissions,  but the entire Program remains governed by
   this License without regard to the additional permissions.

   When  you  convey  a  copy  of  a covered work, you may at your option
   remove  any additional permissions from that copy, or from any part of
   it.  (Additional  permissions  may  be  written  to  require their own
   removal  in  certain  cases  when  you modify the work.) You may place
   additional  permissions  on  material, added by you to a covered work,
   for which you have or can give appropriate copyright permission.

   Notwithstanding  any other provision of this License, for material you
   add to a covered work, you may (if authorized by the copyright holders
   of that material) supplement the terms of this License with terms:
     * a) Disclaiming warranty or limiting liability differently from the
       terms of sections 15 and 16 of this License; or
     * b) Requiring preservation of specified reasonable legal notices or
       author  attributions  in that material or in the Appropriate Legal
       Notices displayed by works containing it; or
     * c)  Prohibiting  misrepresentation of the origin of that material,
       or  requiring that modified versions of such material be marked in
       reasonable ways as different from the original version; or
     * d)  Limiting  the use for publicity purposes of names of licensors
       or authors of the material; or
     * e)  Declining  to grant rights under trademark law for use of some
       trade names, trademarks, or service marks; or
     * f)  Requiring  indemnification  of  licensors  and authors of that
       material  by anyone who conveys the material (or modified versions
       of it) with contractual assumptions of liability to the recipient,
       for  any  liability  that  these  contractual assumptions directly
       impose on those licensors and authors.

   All  other  non-permissive  additional  terms  are considered "further
   restrictions"  within the meaning of section 10. If the Program as you
   received  it,  or any part of it, contains a notice stating that it is
   governed  by  this  License  along  with  a  term  that  is  a further
   restriction,  you may remove that term. If a license document contains
   a  further restriction but permits relicensing or conveying under this
   License,  you may add to a covered work material governed by the terms
   of  that  license document, provided that the further restriction does
   not survive such relicensing or conveying.

   If  you  add  terms to a covered work in accord with this section, you
   must  place,  in  the  relevant  source  files,  a  statement  of  the
   additional  terms  that  apply  to those files, or a notice indicating
   where to find the applicable terms.

   Additional  terms,  permissive or non-permissive, may be stated in the
   form  of  a  separately  written license, or stated as exceptions; the
   above requirements apply either way.

8. Termination.

   You  may  not  propagate  or modify a covered work except as expressly
   provided  under  this  License.  Any attempt otherwise to propagate or
   modify  it is void, and will automatically terminate your rights under
   this  License  (including  any patent licenses granted under the third
   paragraph of section 11).

   However, if you cease all violation of this License, then your license
   from  a  particular  copyright holder is reinstated (a) provisionally,
   unless   and   until  the  copyright  holder  explicitly  and  finally
   terminates  your license, and (b) permanently, if the copyright holder
   fails to notify you of the violation by some reasonable means prior to
   60 days after the cessation.

   Moreover,   your   license  from  a  particular  copyright  holder  is
   reinstated  permanently  if  the  copyright holder notifies you of the
   violation  by  some  reasonable means, this is the first time you have
   received  notice of violation of this License (for any work) from that
   copyright  holder,  and  you cure the violation prior to 30 days after
   your receipt of the notice.

   Termination  of  your rights under this section does not terminate the
   licenses  of parties who have received copies or rights from you under
   this  License. If your rights have been terminated and not permanently
   reinstated,  you  do  not qualify to receive new licenses for the same
   material under section 10.

9. Acceptance Not Required for Having Copies.

   You are not required to accept this License in order to receive or run
   a  copy  of  the  Program.  Ancillary  propagation  of  a covered work
   occurring  solely  as a consequence of using peer-to-peer transmission
   to  receive  a  copy  likewise  does  not require acceptance. However,
   nothing  other than this License grants you permission to propagate or
   modify  any  covered  work. These actions infringe copyright if you do
   not  accept  this  License.  Therefore,  by modifying or propagating a
   covered work, you indicate your acceptance of this License to do so.

10. Automatic Licensing of Downstream Recipients.

   Each  time  you  convey  a  covered  work, the recipient automatically
   receives  a  license  from  the original licensors, to run, modify and
   propagate  that work, subject to this License. You are not responsible
   for enforcing compliance by third parties with this License.

   An  "entity  transaction"  is a transaction transferring control of an
   organization,  or  substantially  all assets of one, or subdividing an
   organization,  or  merging  organizations. If propagation of a covered
   work   results   from  an  entity  transaction,  each  party  to  that
   transaction  who  receives  a  copy of the work also receives whatever
   licenses  to the work the party's predecessor in interest had or could
   give  under  the previous paragraph, plus a right to possession of the
   Corresponding  Source of the work from the predecessor in interest, if
   the predecessor has it or can get it with reasonable efforts.

   You  may  not  impose  any further restrictions on the exercise of the
   rights  granted  or  affirmed under this License. For example, you may
   not  impose  a  license  fee, royalty, or other charge for exercise of
   rights granted under this License, and you may not initiate litigation
   (including  a  cross-claim or counterclaim in a lawsuit) alleging that
   any  patent claim is infringed by making, using, selling, offering for
   sale, or importing the Program or any portion of it.

11. Patents.

   A  "contributor"  is  a copyright holder who authorizes use under this
   License  of  the  Program or a work on which the Program is based. The
   work thus licensed is called the contributor's "contributor version".

   A  contributor's "essential patent claims" are all patent claims owned
   or   controlled  by  the  contributor,  whether  already  acquired  or
   hereafter  acquired, that would be infringed by some manner, permitted
   by this License, of making, using, or selling its contributor version,
   but  do  not  include  claims  that  would  be  infringed  only  as  a
   consequence  of  further  modification of the contributor version. For
   purposes  of  this  definition,  "control" includes the right to grant
   patent  sublicenses  in  a  manner consistent with the requirements of
   this License.

   Each  contributor  grants you a non-exclusive, worldwide, royalty-free
   patent  license  under  the  contributor's essential patent claims, to
   make,  use, sell, offer for sale, import and otherwise run, modify and
   propagate the contents of its contributor version.

   In  the  following three paragraphs, a "patent license" is any express
   agreement  or commitment, however denominated, not to enforce a patent
   (such as an express permission to practice a patent or covenant not to
   sue  for  patent  infringement). To "grant" such a patent license to a
   party  means  to make such an agreement or commitment not to enforce a
   patent against the party.

   If  you  convey a covered work, knowingly relying on a patent license,
   and  the  Corresponding Source of the work is not available for anyone
   to copy, free of charge and under the terms of this License, through a
   publicly  available  network server or other readily accessible means,
   then  you  must  either  (1)  cause  the Corresponding Source to be so
   available,  or  (2)  arrange to deprive yourself of the benefit of the
   patent  license  for this particular work, or (3) arrange, in a manner
   consistent with the requirements of this License, to extend the patent
   license  to  downstream recipients. "Knowingly relying" means you have
   actual  knowledge that, but for the patent license, your conveying the
   covered work in a country, or your recipient's use of the covered work
   in  a country, would infringe one or more identifiable patents in that
   country that you have reason to believe are valid.

   If,  pursuant  to  or  in  connection  with  a  single  transaction or
   arrangement,  you  convey,  or propagate by procuring conveyance of, a
   covered  work,  and  grant  a  patent  license  to some of the parties
   receiving  the covered work authorizing them to use, propagate, modify
   or convey a specific copy of the covered work, then the patent license
   you  grant  is automatically extended to all recipients of the covered
   work and works based on it.

   A patent license is "discriminatory" if it does not include within the
   scope of its coverage, prohibits the exercise of, or is conditioned on
   the  non-exercise  of  one or more of the rights that are specifically
   granted  under  this License. You may not convey a covered work if you
   are  a  party  to  an  arrangement  with  a third party that is in the
   business of distributing software, under which you make payment to the
   third  party  based  on  the  extent of your activity of conveying the
   work,  and  under  which the third party grants, to any of the parties
   who  would  receive the covered work from you, a discriminatory patent
   license  (a) in connection with copies of the covered work conveyed by
   you  (or  copies  made from those copies), or (b) primarily for and in
   connection  with  specific  products  or compilations that contain the
   covered work, unless you entered into that arrangement, or that patent
   license was granted, prior to 28 March 2007.

   Nothing  in  this  License shall be construed as excluding or limiting
   any  implied  license  or  other  defenses  to  infringement  that may
   otherwise be available to you under applicable patent law.

12. No Surrender of Others' Freedom.

   If 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 convey a
   covered  work  so  as to satisfy simultaneously your obligations under
   this   License   and  any  other  pertinent  obligations,  then  as  a
   consequence you may not convey it at all. For example, if you agree to
   terms  that  obligate  you  to collect a royalty for further conveying
   from  those  to  whom  you  convey the Program, the only way you could
   satisfy both those terms and this License would be to refrain entirely
   from conveying the Program.

13. Use with the GNU Affero General Public License.

   Notwithstanding   any  other  provision  of  this  License,  you  have
   permission  to  link  or combine any covered work with a work licensed
   under version 3 of the GNU Affero General Public License into a single
   combined  work,  and  to  convey the resulting work. The terms of this
   License  will continue to apply to the part which is the covered work,
   but the special requirements of the GNU Affero General Public License,
   section 13, concerning interaction through a network will apply to the
   combination as such.

14. Revised Versions of this License.

   The  Free  Software Foundation may publish revised and/or new versions
   of the GNU 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  that  a  certain numbered version of the GNU General Public
   License  "or  any later version" applies to it, you have the option of
   following  the terms and conditions either of that numbered version or
   of any later version published by the Free Software Foundation. If the
   Program  does  not  specify a version number of the GNU General Public
   License,  you  may  choose  any  version  ever  published  by the Free
   Software Foundation.

   If the Program specifies that a proxy can decide which future versions
   of  the  GNU  General  Public License can be used, that proxy's public
   statement  of  acceptance  of  a version permanently authorizes you to
   choose that version for the Program.

   Later   license   versions   may  give  you  additional  or  different
   permissions.  However,  no  additional  obligations are imposed on any
   author  or  copyright  holder as a result of your choosing to follow a
   later version.

15. Disclaimer of Warranty.

   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.

16. Limitation of Liability.

   IN  NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
   WILL  ANY  COPYRIGHT  HOLDER,  OR  ANY OTHER PARTY WHO MODIFIES AND/OR
   CONVEYS  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.

17. Interpretation of Sections 15 and 16.

   If  the  disclaimer  of  warranty and limitation of liability provided
   above  cannot  be  given  local legal effect according to their terms,
   reviewing  courts shall apply local law that most closely approximates
   an  absolute  waiver  of  all  civil  liability in connection with the
   Program,  unless  a  warranty or assumption of liability accompanies a
   copy of the Program in return for a fee.