[PATCH] Dragging MouseArea nested in Flickable does not work with touch to mouse

A MouseArea with a drag target nested in a Flickable does not work.
This is due to QQuickWindow calling childMouseEventFilter() twice -
once in sendFilteredTouchEvent() and later in sendEvent().

Since childMouseEventFilter() has already been called, deliver the
mouse event directly in sendFilteredTouchEvent().

Task-number: QTBUG-32920
Merge pull request #13 from martinjones/master

[PATCH] Dragging MouseArea nested in Flickable does not work with touch ...