GH-1876 Clarify license of GroupView

The LGPL code that came from KDE has been removed back in 2014.
It was replaced with a different implementation, made in
a separate repository.

See commits:
a17caba2c9
b82eb5873e

COPYING.md

@@ -60,26 +60,6 @@
 	You should have received a copy of the GNU Lesser General Public License
 	along with libnbt++.  If not, see <http://www.gnu.org/licenses/>.
 
-# Group View
-
-	Copyright (C) 2007 Rafael Fernández López <ereslibre@kde.org>
-	Copyright (C) 2007 John Tapsell <tapsell@kde.org>
-
-	This library is free software; you can redistribute it and/or
-	modify it under the terms of the GNU Library General Public
-	License as published by the Free Software Foundation; either
-	version 2 of the License, or (at your option) any later version.
-
-	This library 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
-	Library General Public License for more details.
-
-	You should have received a copy of the GNU Library General Public License
-	along with this library; see the file COPYING.LIB.  If not, write to
-	the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-	Boston, MA 02110-1301, USA.
-
 # rainbow (KGuiAddons)
 
 	Copyright (C) 2007 Matthew Woehlke <mw_triad@users.sourceforge.net>

application/groupview/GroupView.cpp

@@ -1,3 +1,18 @@
+/* Copyright 2013-2017 MultiMC Contributors
+ *
+ * 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
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.
+ */
+
 #include "GroupView.h"
 
 #include <QPainter>

application/groupview/GroupView.h

@@ -1,3 +1,18 @@
+/* Copyright 2013-2017 MultiMC Contributors
+ *
+ * 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
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.
+ */
+
 #pragma once
 
 #include <QListView>

application/groupview/GroupedProxyModel.cpp

@@ -1,3 +1,18 @@
+/* Copyright 2013-2017 MultiMC Contributors
+ *
+ * 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
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.
+ */
+
 #include "GroupedProxyModel.h"
 
 #include "GroupView.h"

application/groupview/GroupedProxyModel.h

@@ -1,3 +1,18 @@
+/* Copyright 2013-2017 MultiMC Contributors
+ *
+ * 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
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.
+ */
+
 #pragma once
 
 #include <QSortFilterProxyModel>

application/groupview/VisualGroup.cpp

@@ -1,3 +1,18 @@
+/* Copyright 2013-2017 MultiMC Contributors
+ *
+ * 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
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.
+ */
+
 #include "VisualGroup.h"
 
 #include <QModelIndex>

application/groupview/VisualGroup.h

@@ -1,3 +1,18 @@
+/* Copyright 2013-2017 MultiMC Contributors
+ *
+ * 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
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.
+ */
+
 #pragma once
 
 #include <QString>