use raw files for COPYING.GPL and COPYING.CC-BY-SA

5 files changed, 1102 insertions, 1103 deletions

diff --git a/COPYING.CC-BY-SA b/COPYING.CC-BY-SA
new file mode 100644
index 00000000..cc3e2459
--- /dev/null
+++ b/COPYING.CC-BY-SA
@@ -0,0 +1,427 @@
+Attribution-ShareAlike 4.0 International
+
+=======================================================================
+
+Creative Commons Corporation ("Creative Commons") is not a law firm and
+does not provide legal services or legal advice. Distribution of
+Creative Commons public licenses does not create a lawyer-client or
+other relationship. Creative Commons makes its licenses and related
+information available on an "as-is" basis. Creative Commons gives no
+warranties regarding its licenses, any material licensed under their
+terms and conditions, or any related information. Creative Commons
+disclaims all liability for damages resulting from their use to the
+fullest extent possible.
+
+Using Creative Commons Public Licenses
+
+Creative Commons public licenses provide a standard set of terms and
+conditions that creators and other rights holders may use to share
+original works of authorship and other material subject to copyright
+and certain other rights specified in the public license below. The
+following considerations are for informational purposes only, are not
+exhaustive, and do not form part of our licenses.
+
+     Considerations for licensors: Our public licenses are
+     intended for use by those authorized to give the public
+     permission to use material in ways otherwise restricted by
+     copyright and certain other rights. Our licenses are
+     irrevocable. Licensors should read and understand the terms
+     and conditions of the license they choose before applying it.
+     Licensors should also secure all rights necessary before
+     applying our licenses so that the public can reuse the
+     material as expected. Licensors should clearly mark any
+     material not subject to the license. This includes other CC-
+     licensed material, or material used under an exception or
+     limitation to copyright. More considerations for licensors:
+    wiki.creativecommons.org/Considerations_for_licensors
+
+     Considerations for the public: By using one of our public
+     licenses, a licensor grants the public permission to use the
+     licensed material under specified terms and conditions. If
+     the licensor's permission is not necessary for any reason--for
+     example, because of any applicable exception or limitation to
+     copyright--then that use is not regulated by the license. Our
+     licenses grant only permissions under copyright and certain
+     other rights that a licensor has authority to grant. Use of
+     the licensed material may still be restricted for other
+     reasons, including because others have copyright or other
+     rights in the material. A licensor may make special requests,
+     such as asking that all changes be marked or described.
+     Although not required by our licenses, you are encouraged to
+     respect those requests where reasonable. More considerations
+     for the public:
+    wiki.creativecommons.org/Considerations_for_licensees
+
+=======================================================================
+
+Creative Commons Attribution-ShareAlike 4.0 International Public
+License
+
+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.
+
+     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.
+
+  c. 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.
+
+  d. 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.
+
+
+=======================================================================
+
+Creative Commons is not a party to its public
+licenses. Notwithstanding, Creative Commons may elect to apply one of
+its public licenses to material it publishes and in those instances
+will be considered the “Licensor.” The text of the Creative Commons
+public licenses is dedicated to the public domain under the CC0 Public
+Domain Dedication. Except for the limited purpose of indicating that
+material is shared under a Creative Commons public license or as
+otherwise permitted by the Creative Commons policies published at
+creativecommons.org/policies, Creative Commons does not authorize the
+use of the trademark "Creative Commons" or any other trademark or logo
+of Creative Commons without its prior written consent including,
+without limitation, in connection with any unauthorized modifications
+to any of its public licenses or any other arrangements,
+understandings, or agreements concerning use of licensed material. For
+the avoidance of doubt, this paragraph does not form part of the
+public licenses.
+
+Creative Commons may be contacted at creativecommons.org.
diff --git a/COPYING.CC-BY-SA.md b/COPYING.CC-BY-SA.md
deleted file mode 100644
index 73a7584e..00000000
--- a/COPYING.CC-BY-SA.md
+++ /dev/null
@@ -1,427 +0,0 @@
-    Attribution-ShareAlike 4.0 International
-
-    =======================================================================
-
-    Creative Commons Corporation ("Creative Commons") is not a law firm and
-    does not provide legal services or legal advice. Distribution of
-    Creative Commons public licenses does not create a lawyer-client or
-    other relationship. Creative Commons makes its licenses and related
-    information available on an "as-is" basis. Creative Commons gives no
-    warranties regarding its licenses, any material licensed under their
-    terms and conditions, or any related information. Creative Commons
-    disclaims all liability for damages resulting from their use to the
-    fullest extent possible.
-
-    Using Creative Commons Public Licenses
-
-    Creative Commons public licenses provide a standard set of terms and
-    conditions that creators and other rights holders may use to share
-    original works of authorship and other material subject to copyright
-    and certain other rights specified in the public license below. The
-    following considerations are for informational purposes only, are not
-    exhaustive, and do not form part of our licenses.
-
-         Considerations for licensors: Our public licenses are
-         intended for use by those authorized to give the public
-         permission to use material in ways otherwise restricted by
-         copyright and certain other rights. Our licenses are
-         irrevocable. Licensors should read and understand the terms
-         and conditions of the license they choose before applying it.
-         Licensors should also secure all rights necessary before
-         applying our licenses so that the public can reuse the
-         material as expected. Licensors should clearly mark any
-         material not subject to the license. This includes other CC-
-         licensed material, or material used under an exception or
-         limitation to copyright. More considerations for licensors:
-        wiki.creativecommons.org/Considerations_for_licensors
-
-         Considerations for the public: By using one of our public
-         licenses, a licensor grants the public permission to use the
-         licensed material under specified terms and conditions. If
-         the licensor's permission is not necessary for any reason--for
-         example, because of any applicable exception or limitation to
-         copyright--then that use is not regulated by the license. Our
-         licenses grant only permissions under copyright and certain
-         other rights that a licensor has authority to grant. Use of
-         the licensed material may still be restricted for other
-         reasons, including because others have copyright or other
-         rights in the material. A licensor may make special requests,
-         such as asking that all changes be marked or described.
-         Although not required by our licenses, you are encouraged to
-         respect those requests where reasonable. More considerations
-         for the public:
-        wiki.creativecommons.org/Considerations_for_licensees
-
-    =======================================================================
-
-    Creative Commons Attribution-ShareAlike 4.0 International Public
-    License
-
-    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.
-
-         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.
-
-      c. 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.
-
-      d. 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.
-
-
-    =======================================================================
-
-    Creative Commons is not a party to its public
-    licenses. Notwithstanding, Creative Commons may elect to apply one of
-    its public licenses to material it publishes and in those instances
-    will be considered the “Licensor.” The text of the Creative Commons
-    public licenses is dedicated to the public domain under the CC0 Public
-    Domain Dedication. Except for the limited purpose of indicating that
-    material is shared under a Creative Commons public license or as
-    otherwise permitted by the Creative Commons policies published at
-    creativecommons.org/policies, Creative Commons does not authorize the
-    use of the trademark "Creative Commons" or any other trademark or logo
-    of Creative Commons without its prior written consent including,
-    without limitation, in connection with any unauthorized modifications
-    to any of its public licenses or any other arrangements,
-    understandings, or agreements concerning use of licensed material. For
-    the avoidance of doubt, this paragraph does not form part of the
-    public licenses.
-
-    Creative Commons may be contacted at creativecommons.org.
diff --git a/COPYING.GPL b/COPYING.GPL
new file mode 100644
index 00000000..f288702d
--- /dev/null
+++ b/COPYING.GPL
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://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.
+
+                     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 <https://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
+<https://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
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
diff --git a/COPYING.GPL.md b/COPYING.GPL.md
deleted file mode 100644
index 95d9a665..00000000
--- a/COPYING.GPL.md
+++ /dev/null
@@ -1,674 +0,0 @@
-                        GNU GENERAL PUBLIC LICENSE
-                           Version 3, 29 June 2007
-
-     Copyright (C) 2007 Free Software Foundation, Inc. <https://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.
-
-                         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 <https://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
-    <https://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
-    <https://www.gnu.org/licenses/why-not-lgpl.html>.
diff --git a/COPYING.md b/COPYING.md
index ec332d89..cac0b19d 100644
--- a/COPYING.md
+++ b/COPYING.md
@@ -5,5 +5,4 @@ License as published by the Free Software Foundation, either version 3
 of the License, or (at your option) any later version.
 
 Copies of these two licenses are included in the EmacsConf wiki
-repository, in the [COPYING.GPL](/COPYING.GPL) and
-[COPYING.CC-BY-SA](/COPYING.CC-BY-SA) files.
+repository, in the [[COPYING.GPL]] and [[COPYING.CC-BY-SA]] files.