update license headers

Change-Id: I4b7044d3b15c96bb12a469084a966a61963f67d6
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
update changelog

Change-Id: I18eab7e0894cac1fe02f4be9f7554e1ab44d3223
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>