Change License to Apache-2.0 (#47)

Starting with version 0.1.0, `tad-dftd4` will be distributed with the
more permissive Apache-2.0 license.

.gitignore

@@ -1,20 +1,19 @@
 # This file is part of tad-dftd4.
 #
-# SPDX-Identifier: LGPL-3.0
-# Copyright (C) 2022 Marvin Friede
+# SPDX-Identifier: Apache-2.0
+# Copyright (C) 2024 Grimme Group
 #
-# tad-dftd4 is free software: you can redistribute it and/or modify it under
-# the terms of the GNU Lesser General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
 #
-# tad-dftd4 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 Lesser General Public License for more details.
+#     http://www.apache.org/licenses/LICENSE-2.0
 #
-# You should have received a copy of the GNU Lesser General Public License
-# along with tad-dftd4. If not, see <https://www.gnu.org/licenses/>.
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 # Byte-compiled / optimized / DLL files
 __pycache__/

.pre-commit-config.yaml

@@ -1,20 +1,19 @@
 # This file is part of tad-dftd4.
 #
-# SPDX-Identifier: LGPL-3.0
-# Copyright (C) 2022 Marvin Friede
+# SPDX-Identifier: Apache-2.0
+# Copyright (C) 2024 Grimme Group
 #
-# tad-dftd4 is free software: you can redistribute it and/or modify it under
-# the terms of the GNU Lesser General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
 #
-# tad-dftd4 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 Lesser General Public License for more details.
+#     http://www.apache.org/licenses/LICENSE-2.0
 #
-# You should have received a copy of the GNU Lesser General Public License
-# along with tad-dftd4. If not, see <https://www.gnu.org/licenses/>.
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 ci:
     skip: [mypy]
 

.readthedocs.yaml

@@ -1,20 +1,19 @@
 # This file is part of tad-dftd4.
 #
-# SPDX-Identifier: LGPL-3.0
-# Copyright (C) 2022 Marvin Friede
+# SPDX-Identifier: Apache-2.0
+# Copyright (C) 2024 Grimme Group
 #
-# tad-dftd4 is free software: you can redistribute it and/or modify it under
-# the terms of the GNU Lesser General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
 #
-# tad-dftd4 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 Lesser General Public License for more details.
+#     http://www.apache.org/licenses/LICENSE-2.0
 #
-# You should have received a copy of the GNU Lesser General Public License
-# along with tad-dftd4. If not, see <https://www.gnu.org/licenses/>.
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 # .readthedocs.yaml
 # Read the Docs configuration file