all: Update license and copyright.

Add FOSS licence exception.
Fix copyright holder name.

COPYING

+Caucase is free software licensed under GPLv3+ with additional permission
+to link, combine and redistribute it with other free or open source software.
+
+Please see https://www.nexedi.com/licensing for rationale and options.
+
+The exact licensing terms follow:
+
+----------------------------------------
+Additional permission under GNU GPL version 3 section 7 :
+
+  If you modify this Program, or any covered work, by linking or
+combining it with other software covered by the terms of any of the
+licenses classified as free software license by the Free Software
+Foundation
+
+    <https://www.gnu.org/licenses/license-list.en.html>,
+
+or any of the Open Source Initiative approved licenses
+
+    <http://opensource.org/licenses>,
+
+the licensors of this Program grant you additional permission to convey
+the resulting work. Corresponding Source for a non-source form of such a
+combination shall include the source code for all other software used as
+well as that of the covered work.
+
+
+----------------------------------------
                     GNU GENERAL PUBLIC LICENSE
                        Version 3, 29 June 2007
 

caucase/__init__.py

 # This file is part of caucase
-# Copyright (C) 2017-2019  Nexedi
+# Copyright (C) 2017-2019  Nexedi SA
 #     Alain Takoudjou <alain.takoudjou@nexedi.com>
 #     Vincent Pelletier <vincent@nexedi.com>
 #

caucase/ca.py

 # This file is part of caucase
-# Copyright (C) 2017-2019  Nexedi
+# Copyright (C) 2017-2019  Nexedi SA
 #     Alain Takoudjou <alain.takoudjou@nexedi.com>
 #     Vincent Pelletier <vincent@nexedi.com>
 #

caucase/cli.py

 # This file is part of caucase
-# Copyright (C) 2017-2019  Nexedi
+# Copyright (C) 2017-2019  Nexedi SA
 #     Alain Takoudjou <alain.takoudjou@nexedi.com>
 #     Vincent Pelletier <vincent@nexedi.com>
 #

caucase/client.py

 # This file is part of caucase
-# Copyright (C) 2017-2019  Nexedi
+# Copyright (C) 2017-2019  Nexedi SA
 #     Alain Takoudjou <alain.takoudjou@nexedi.com>
 #     Vincent Pelletier <vincent@nexedi.com>
 #

caucase/exceptions.py

 # This file is part of caucase
-# Copyright (C) 2017-2019  Nexedi
+# Copyright (C) 2017-2019  Nexedi SA
 #     Alain Takoudjou <alain.takoudjou@nexedi.com>
 #     Vincent Pelletier <vincent@nexedi.com>
 #

caucase/http.py

 # This file is part of caucase
-# Copyright (C) 2017-2019  Nexedi
+# Copyright (C) 2017-2019  Nexedi SA
 #     Alain Takoudjou <alain.takoudjou@nexedi.com>
 #     Vincent Pelletier <vincent@nexedi.com>
 #

caucase/http_wsgibase.py

 # This file is part of caucase
-# Copyright (C) 2017-2019  Nexedi
+# Copyright (C) 2017-2019  Nexedi SA
 #     Alain Takoudjou <alain.takoudjou@nexedi.com>
 #     Vincent Pelletier <vincent@nexedi.com>
 #

caucase/storage.py

 # This file is part of caucase
-# Copyright (C) 2017-2019  Nexedi
+# Copyright (C) 2017-2019  Nexedi SA
 #     Alain Takoudjou <alain.takoudjou@nexedi.com>
 #     Vincent Pelletier <vincent@nexedi.com>
 #

caucase/test.py

 # This file is part of caucase
-# Copyright (C) 2017-2019  Nexedi
+# Copyright (C) 2017-2019  Nexedi SA
 #     Alain Takoudjou <alain.takoudjou@nexedi.com>
 #     Vincent Pelletier <vincent@nexedi.com>
 #

caucase/utils.py

 # This file is part of caucase
-# Copyright (C) 2017-2019  Nexedi
+# Copyright (C) 2017-2019  Nexedi SA
 #     Alain Takoudjou <alain.takoudjou@nexedi.com>
 #     Vincent Pelletier <vincent@nexedi.com>
 #

caucase/version.py

 # This file is part of caucase
-# Copyright (C) 2018  Nexedi
+# Copyright (C) 2018  Nexedi SA
 #     Vincent Pelletier <vincent@nexedi.com>
 #
 # caucase is free software: you can redistribute it and/or modify

caucase/wsgi.py

 # This file is part of caucase
-# Copyright (C) 2017-2019  Nexedi
+# Copyright (C) 2017-2019  Nexedi SA
 #     Alain Takoudjou <alain.takoudjou@nexedi.com>
 #     Vincent Pelletier <vincent@nexedi.com>
 #

setup.py

 # This file is part of caucase
-# Copyright (C) 2017-2019  Nexedi
+# Copyright (C) 2017-2019  Nexedi SA
 #     Alain Takoudjou <alain.takoudjou@nexedi.com>
 #     Vincent Pelletier <vincent@nexedi.com>
 #
@@ -47,7 +47,7 @@ setup(
   ],
   keywords='certificate authority',
   url='https://lab.nexedi.com/nexedi/caucase',
-  license='GPLv3+',
+  license='GPLv3+ with wide exception for FOSS',
   packages=find_packages(),
   install_requires=[
     'cryptography>=2.2.1', # everything x509 except...

shell/caucase.sh

 #!/bin/sh
 # This file is part of caucase
-# Copyright (C) 2017-2019  Nexedi
+# Copyright (C) 2017-2019  Nexedi SA
 #     Vincent Pelletier <vincent@nexedi.com>
 #
 # caucase is free software: you can redistribute it and/or modify