From Qt 5.7 -> examples are lisenced under BSD license, see
http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/
Updated license headers to use new BSD header instead of LGPL21 one
(in those files which will be under BSD)
Change-Id: I3ad61caaf07802eb9da7d29eca3fe49d8a51b6a8
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@theqtcompany.com>
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>