Relicense some files to LGPL2.1+
This has been done with approval from the original authors (including
myself).
Some are still GPL-2.0. I will contact the author(s) to handle that.
CCMAIL: mart@kde.org
CCMAIL: hein@kde.org
CCMAIL: kde@privat.broulik.de
CCMAIL: kde-frameworks-devel@kde.org