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License

This program is free software, distributed under the terms of the GNU General Public License Version 3.

If you're interested in a commercial license (e.g., because GPLv3 is not suited for what you need, you're interested in technical support or want to sponsor the development of new features), feel free to contact us.

                        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
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      The licenses for most software and other practical works are designed
    to take away your freedom to share and change the works.  By contrast,
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    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
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      When we speak of free software, we are referring to freedom, not
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      To protect your rights, we need to prevent others from denying you
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      For example, if you distribute copies of such a program, whether
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      Developers that use the GNU GPL protect your rights with two steps:
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      Some devices are designed to deny users access to install or run
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      The precise terms and conditions for copying, distribution and
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                           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
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      The Corresponding Source for a work in source code form is that
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      All rights granted under this License are granted for the term of
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      4. Conveying Verbatim Copies.

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      A separable portion of the object code, whose source code is excluded
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      A "User Product" is either (1) a "consumer product", which means any
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      If you convey an object code work under this section in, or with, or
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      The requirement to provide Installation Information does not include a
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      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
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      Notwithstanding any other provision of this License, for material you
    add to a covered work, you may (if authorized by the copyright holders of
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        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
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        c) Prohibiting misrepresentation of the origin of that material, or
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      All other non-permissive additional terms are considered "further
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    received it, or any part of it, contains a notice stating that it is
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    a further restriction but permits relicensing or conveying under this
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      If you add terms to a covered work in accord with this section, you
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      Additional terms, permissive or non-permissive, may be stated in the
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      8. Termination.

      You may not propagate or modify a covered work except as expressly
    provided under this License.  Any attempt otherwise to propagate or
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    this License (including any patent licenses granted under the third
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      However, if you cease all violation of this License, then your
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    holder fails to notify you of the violation by some reasonable means
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      Moreover, your license from a particular copyright holder is
    reinstated permanently if the copyright holder notifies you of the
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    received notice of violation of this License (for any work) from that
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    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
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      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,
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      10. Automatic Licensing of Downstream Recipients.

      Each time you convey a covered work, the recipient automatically
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      An "entity transaction" is a transaction transferring control of an
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      You may not impose any further restrictions on the exercise of the
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    (including a cross-claim or counterclaim in a lawsuit) alleging that
    any patent claim is infringed by making, using, selling, offering for
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      11. Patents.

      A "contributor" is a copyright holder who authorizes use under this
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      A contributor's "essential patent claims" are all patent claims
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      Each contributor grants you a non-exclusive, worldwide, royalty-free
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      In the following three paragraphs, a "patent license" is any express
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      If you convey a covered work, knowingly relying on a patent license,
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      If, pursuant to or in connection with a single transaction or
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      A patent license is "discriminatory" if it does not include within
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    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
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      12. No Surrender of Others' Freedom.

      If conditions are imposed on you (whether by court order, agreement or
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    covered work so as to satisfy simultaneously your obligations under this
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    to collect a royalty for further conveying from those to whom you convey
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      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
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      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
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      Each version is given a distinguishing version number.  If the
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    Foundation.  If the Program does not specify a version number of the
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    by the Free Software Foundation.

      If the Program specifies that a proxy can decide which future
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      Later license versions may give you additional or different
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      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
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      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
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      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.

                         END OF TERMS AND CONDITIONS

                How to Apply These Terms to Your New Programs

      If you develop a new program, and you want it to be of the greatest
    possible use to the public, the best way to achieve this is to make it
    free software which everyone can redistribute and change under these terms.

      To do so, attach the following notices to the program.  It is safest
    to attach them to the start of each source file to most effectively
    state the exclusion of warranty; and each file should have at least
    the "copyright" line and a pointer to where the full notice is found.

        <one line to give the program's name and a brief idea of what it does.>
        Copyright (C) <year>  <name of author>

        This program is free software: you can redistribute it and/or modify
        it under the terms of the GNU General Public License as published by
        the Free Software Foundation, either version 3 of the License, or
        (at your option) any later version.

        This program is distributed in the hope that it will be useful,
        but WITHOUT ANY WARRANTY; without even the implied warranty of
        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        GNU General Public License for more details.

        You should have received a copy of the GNU General Public License
        along with this program.  If not, see <http://www.gnu.org/licenses/>.

    Also add information on how to contact you by electronic and paper mail.

      If the program does terminal interaction, make it output a short
    notice like this when it starts in an interactive mode:

        <program>  Copyright (C) <year>  <name of author>
        This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
        This is free software, and you are welcome to redistribute it
        under certain conditions; type `show c' for details.

    The hypothetical commands `show w' and `show c' should show the appropriate
    parts of the General Public License.  Of course, your program's commands
    might be different; for a GUI interface, you would use an "about box".

      You should also get your employer (if you work as a programmer) or school,
    if any, to sign a "copyright disclaimer" for the program, if necessary.
    For more information on this, and how to apply and follow the GNU GPL, see
    <http://www.gnu.org/licenses/>.

      The GNU General Public License does not permit incorporating your program
    into proprietary programs.  If your program is a subroutine library, you
    may consider it more useful to permit linking proprietary applications with
    the library.  If this is what you want to do, use the GNU Lesser General
    Public License instead of this License.  But first, please read
    <http://www.gnu.org/philosophy/why-not-lgpl.html>.

    ========================================================================

    Exception by Meetecho s.r.l.:

    If you modify this Program, or any covered work, by linking or combining
    it with OpenSSL (or a modified version of that library), containing
    parts covered by the terms of OpenSSL License, the licensors of this
    Program grant you additional permission to convey the resulting work.
    Corresponding Source for a non-source form of such a combination shall
    include the source code for the parts of OpenSSL used as well as that of
    the covered work.