Changes: make reactionmaptester ignore parents of the subject
Changes: make reactionmaptester ignore parents of the subject

RevBy: Pekka Vuorela, Kimmo Surakka, Chi Ning
Details: for example, there is some unknown root widget on the scene at (0,0
50x50) (not the scene window) which we want to ignore if the tested widget is
in the same region.

RHawkeyed/plugins,develersrl/maliit-demo-qml,develersrl/maliit-demo-qml,KDE/plasma-maliit-plugins,develersrl/maliit-demo-qml,maliit/plugins,KDE/plasma-maliit-plugins,RHawkeyed/plugins,KDE/plasma-maliit-plugins,develersrl/maliit-demo-qml,RHawkeyed/plugins,RHawkeyed/plugins,RHawkeyed/plugins,maliit/plugins,maliit/plugins,KDE/plasma-maliit-plugins,maliit/plugins