--is touching view functions did not identify
when a windows was touching the absolutegeometry
<thickness> boundary and at the same time
overlapping the view <length> area. A case
that was breaking the experience was the
Plasma "AddWidgets" dialog
--View::WindowsTracker now provides all the time
information about CurrentScreen and AllScreens!
This way all consumers (Latte::Containment, Applets etc.)
can choose whatever suits them best.