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, version 3.

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 <https://www.gnu.org/licenses/>.

On Debian systems, the complete text of the GNU General Public License version
3 can be found in "/usr/share/common-licenses/GPL-3". 

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 <https://www.gnu.org/licenses/>.

On Debian systems, the complete text of the GNU General Public License version
3 can be found in "/usr/share/common-licenses/GPL-3". 

Creative Commons Attribution-ShareAlike 4.0 International

By exercising the Licensed Rights (defined below), You accept and agree
to be bound by the terms and conditions of this Creative Commons
Attribution-ShareAlike 4.0 International Public License ("Public License").
To the extent this Public License may be interpreted as a contract, You are
granted the Licensed Rights in consideration of Your acceptance of these
terms and conditions, and the Licensor grants You such rights in consideration
of benefits the Licensor receives from making the Licensed Material available
under these terms and conditions.

Section 1 – Definitions.

 a. Adapted Material means material subject to Copyright and Similar Rights
 that is derived from or based upon the Licensed Material and in which the
 Licensed Material is translated, altered, arranged, transformed, or
 otherwise modified in a manner requiring permission under the Copyright
 and Similar Rights held by the Licensor. For purposes of this Public
 License, where the Licensed Material is a musical work, performance, or
 sound recording, Adapted Material is always produced where the Licensed
 Material is synched in timed relation with a moving image.

 b. Adapter's License means the license You apply to Your Copyright and
 Similar Rights in Your contributions to Adapted Material in accordance
 with the terms and conditions of this Public License.

 c. BY-SA Compatible License means a license listed at
 creativecommons.org/compatiblelicenses, approved by Creative Commons
 as essentially the equivalent of this Public License.

 d. Copyright and Similar Rights means copyright and/or similar rights closely
 related to copyright including, without limitation, performance,
 broadcast, sound recording, and Sui Generis Database Rights, without
 regard to how the rights are labeled or categorized. For purposes of this
 Public License, the rights specified in Section 2(b)(1)-(2) are not
 Copyright and Similar Rights.

 e. Effective Technological Measures means those measures that, in the absence
 of proper authority, may not be circumvented under laws fulfilling
 obligations under Article 11 of the WIPO Copyright Treaty adopted on
 December 20, 1996, and/or similar international agreements.

 f. Exceptions and Limitations means fair use, fair dealing, and/or any other
 exception or limitation to Copyright and Similar Rights that applies to
 Your use of the Licensed Material.

 g. License Elements means the license attributes listed in the name of a
 Creative Commons Public License. The License Elements of this Public
 License are Attribution and ShareAlike.

 h. Licensed Material means the artistic or literary work, database, or other
 material to which the Licensor applied this Public License.

 i. Licensed Rights means the rights granted to You subject to the terms and
 conditions of this Public License, which are limited to all Copyright and
 Similar Rights that apply to Your use of the Licensed Material and that
 the Licensor has authority to license.

 j. Licensor means the individual(s) or entity(ies) granting rights under this
 Public License.

 k. Share means to provide material to the public by any means or process that
 requires permission under the Licensed Rights, such as reproduction,
 public display, public performance, distribution, dissemination,
 communication, or importation, and to make material available to the
 public including in ways that members of the public may access the
 material from a place and at a time individually chosen by them.

 l. Sui Generis Database Rights means rights other than copyright resulting
 from Directive 96/9/EC of the European Parliament and of the Council of
 11 March 1996 on the legal protection of databases, as amended and/or
 succeeded, as well as other essentially equivalent rights anywhere in the
 world.

 m. You means the individual or entity exercising the Licensed Rights under
 this Public License. Your has a corresponding meaning.

Section 2 – Scope.

 a. License grant.

     1. Subject to the terms and conditions of this Public License, the
     Licensor hereby grants You a worldwide, royalty-free,
     non-sublicensable, non-exclusive, irrevocable license to exercise
     the Licensed Rights in the Licensed Material to:

        A. reproduce and Share the Licensed Material, in whole or in part; and
        B. produce, reproduce, and Share Adapted Material.

     2. Exceptions and Limitations. For the avoidance of doubt, where
     Exceptions and Limitations apply to Your use, this Public License
     does not apply, and You do not need to comply with its terms and
     conditions.

     3. Term. The term of this Public License is specified in Section 6(a).

     4. Media and formats; technical modifications allowed. The Licensor
     authorizes You to exercise the Licensed Rights in all media and
     formats whether now known or hereafter created, and to make
     technical modifications necessary to do so. The Licensor waives
     and/or agrees not to assert any right or authority to forbid You
     from making technical modifications necessary to exercise the
     Licensed Rights, including technical modifications necessary to
     circumvent Effective Technological Measures. For purposes of this
     Public License, simply making modifications authorized by this
     Section 2(a)(4) never produces Adapted Material.

     5. Downstream recipients.

        A. Offer from the Licensor – Licensed Material. Every recipient of
        the Licensed Material automatically receives an offer from the
        Licensor to exercise the Licensed Rights under the terms and
        conditions of this Public License.

        B. Additional offer from the Licensor – Adapted Material. Every
        recipient of Adapted Material from You automatically receives an
        offer from the Licensor to exercise the Licensed Rights in the
        Adapted Material under the conditions of the Adapter’s License
        You apply.

        C. No downstream restrictions. You may not offer or impose any
        additional or different terms or conditions on, or apply any
        Effective Technological Measures to, the Licensed Material if
        doing so restricts exercise of the Licensed Rights by any
        recipient of the Licensed Material.

     6. No endorsement. Nothing in this Public License constitutes or may be
     construed as permission to assert or imply that You are, or that Your
     use of the Licensed Material is, connected with, or sponsored,
     endorsed, or granted official status by, the Licensor or others
     designated to receive attribution as provided in Section 3(a)(1)(A)(i).

 b. Other rights.

     1. Moral rights, such as the right of integrity, are not licensed under
     this Public License, nor are publicity, privacy, and/or other similar
     personality rights; however, to the extent possible, the Licensor
     waives and/or agrees not to assert any such rights held by the
     Licensor to the limited extent necessary to allow You to exercise the
     Licensed Rights, but not otherwise.

     2. Patent and trademark rights are not licensed under this Public License.

     3. To the extent possible, the Licensor waives any right to collect
     royalties from You for the exercise of the Licensed Rights, whether
     directly or through a collecting society under any voluntary or
     waivable statutory or compulsory licensing scheme. In all other
     cases the Licensor expressly reserves any right to collect such
     royalties.

Section 3 – License Conditions.

Your exercise of the Licensed Rights is expressly made subject to the
following conditions.

 a. Attribution.

     1. If You Share the Licensed Material (including in modified form),
     You must:

        A. retain the following if it is supplied by the Licensor with
        the Licensed Material:

           i. identification of the creator(s) of the Licensed Material
           and any others designated to receive attribution, in any
           reasonable manner requested by the Licensor (including by
           pseudonym if designated);

           ii. a copyright notice;

           iii. a notice that refers to this Public License;

           iv. a notice that refers to the disclaimer of warranties;

           v. a URI or hyperlink to the Licensed Material to the extent
           reasonably practicable;

        B. indicate if You modified the Licensed Material and retain an
        indication of any previous modifications; and

        C. indicate the Licensed Material is licensed under this Public
        License, and include the text of, or the URI or hyperlink to,
        this Public License.

     2. You may satisfy the conditions in Section 3(a)(1) in any reasonable
     manner based on the medium, means, and context in which You Share
     the Licensed Material. For example, it may be reasonable to satisfy
     the conditions by providing a URI or hyperlink to a resource that
     includes the required information.

     3. If requested by the Licensor, You must remove any of the information
     required by Section 3(a)(1)(A) to the extent reasonably practicable.

 b. ShareAlike.In addition to the conditions in Section 3(a), if You Share
    Adapted Material You produce, the following conditions also apply.

     1. The Adapter’s License You apply must be a Creative Commons license
     with the same License Elements, this version or later, or a BY-SA
     Compatible License.

     2. You must include the text of, or the URI or hyperlink to, the
     Adapter's License You apply. You may satisfy this condition in
     any reasonable manner based on the medium, means, and context in
     which You Share Adapted Material.

     3. You may not offer or impose any additional or different terms or
     conditions on, or apply any Effective Technological Measures to,
     Adapted Material that restrict exercise of the rights granted under
     the Adapter's License You apply.

Section 4 – Sui Generis Database Rights.

Where the Licensed Rights include Sui Generis Database Rights that apply to
Your use of the Licensed Material:

 a. for the avoidance of doubt, Section 2(a)(1) grants You the right to
 extract, reuse, reproduce, and Share all or a substantial portion of
 the contents of the database;

 b. if You include all or a substantial portion of the database contents
 in a database in which You have Sui Generis Database Rights, then the
 database in which You have Sui Generis Database Rights (but not its
 individual contents) is Adapted Material, including for purposes of
 Section 3(b); and

 c. You must comply with the conditions in Section 3(a) if You Share all
 or a substantial portion of the contents of the database.
 For the avoidance of doubt, this Section 4 supplements and does not
 replace Your obligations under this Public License where the Licensed
 Rights include other Copyright and Similar Rights.

Section 5 – Disclaimer of Warranties and Limitation of Liability.

 a. Unless otherwise separately undertaken by the Licensor, to the extent
 possible, the Licensor offers the Licensed Material as-is and
 as-available, and makes no representations or warranties of any kind
 concerning the Licensed Material, whether express, implied, statutory,
 or other. This includes, without limitation, warranties of title,
 merchantability, fitness for a particular purpose, non-infringement,
 absence of latent or other defects, accuracy, or the presence or
 absence of errors, whether or not known or discoverable. Where
 disclaimers of warranties are not allowed in full or in part, this
 disclaimer may not apply to You.

 b. To the extent possible, in no event will the Licensor be liable to
 You on any legal theory (including, without limitation, negligence)
 or otherwise for any direct, special, indirect, incidental,
 consequential, punitive, exemplary, or other losses, costs, expenses,
 or damages arising out of this Public License or use of the Licensed
 Material, even if the Licensor has been advised of the possibility of
 such losses, costs, expenses, or damages. Where a limitation of
 liability is not allowed in full or in part, this limitation may not
 apply to You.

 c. The disclaimer of warranties and limitation of liability provided above
 shall be interpreted in a manner that, to the extent possible, most
 closely approximates an absolute disclaimer and waiver of all liability.

Section 6 – Term and Termination.

 a. This Public License applies for the term of the Copyright and Similar
 Rights licensed here. However, if You fail to comply with this Public
 License, then Your rights under this Public License terminate
 automatically.

 b. Where Your right to use the Licensed Material has terminated under
 Section 6(a), it reinstates:

     1. automatically as of the date the violation is cured, provided it
     is cured within 30 days of Your discovery of the violation; or

     2. upon express reinstatement by the Licensor.

 c. For the avoidance of doubt, this Section 6(b) does not affect any right
 the Licensor may have to seek remedies for Your violations of this Public
 License.

 d. For the avoidance of doubt, the Licensor may also offer the Licensed
 Material under separate terms or conditions or stop distributing the
 Licensed Material at any time; however, doing so will not terminate
 this Public License.

 e. Sections 1, 5, 6, 7, and 8 survive termination of this Public License.

Section 7 – Other Terms and Conditions.

 a. The Licensor shall not be bound by any additional or different terms
 or conditions communicated by You unless expressly agreed.

 b. Any arrangements, understandings, or agreements regarding the Licensed
 Material not stated herein are separate from and independent of the
 terms and conditions of this Public License.

Section 8 – Interpretation.

 a. For the avoidance of doubt, this Public License does not, and shall
 not be interpreted to, reduce, limit, restrict, or impose conditions
 on any use of the Licensed Material that could lawfully be made without
 permission under this Public License.

 b. To the extent possible, if any provision of this Public License is
 deemed unenforceable, it shall be automatically reformed to the minimum
 extent necessary to make it enforceable. If the provision cannot be
 reformed, it shall be severed from this Public License without affecting
 the enforceability of the remaining terms and conditions.

 c. No term or condition of this Public License will be waived and no
 failure to comply consented to unless expressly agreed to by the
 Licensor.

 d. Nothing in this Public License constitutes or may be interpreted as a
 limitation upon, or waiver of, any privileges and immunities that apply
 to the Licensor or You, including from the legal processes of any
 jurisdiction or authority.