Replace old license header with correct one.

Change-Id: I85f5a152069bdd1433f41f41e766063ec0fdbe13
Reviewed-on: http://codereview.qt.nokia.com/1371


Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Jyri Tahtela <jyri.tahtela@nokia.com>