The use of QErrorMessage::qtHandle() installs a message handler
that from then on pops up a warning for each qWarning().

Change-Id: Iad6ac7b002ffc007de7df7a41c3ce0f9ee40e6d0
Reviewed-on: http://codereview.qt.nokia.com/2280


Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>