Sometimes the informations are not updated if a property change is removed
in a state.

Done-with: Marco Bubke

Don't wait anymore that processes have finished. Simply connect the
finished signal to deleteLater().

If FORWARD_QMLPUPPET_OUTPUT is set the output of qmlpuppet is forwarded.

Last fix don't work expected. Must be refactored back.

It puts only qml objects on the superclass stack. Must be reviewed by
Thomas if he is back.

The custom notification code leads to hard readable code.

dummydata directories are searched recursive too.

Task-number: QTCREATORBUG-3558