Add changes-5.1.1 file
Add changes-5.1.1 file

Change-Id: I6812e032b566ecd53459dfde394058e198119e9f
Reviewed-by: Jerome Pasion <c10995d24f6b454503389e8d00d837aef038985d@digia.com>

kobolabs/qtdoc,kobolabs/qtdoc,kobolabs/qtdoc,kobolabs/qtdoc