Implement pinch/click/close support for 1 webpage view (when in overview mode).
Implement pinch/click/close support for 1 webpage view (when in overview mode).

FIXME: https://bugreports.qt-project.org/browse/QTBUG-25058
MeeGo doesn't work very well with pinchArea and MouseArea sharing the same space.

This first commit allows desktop users to test mobile version using the mouse wheel
events to simulate pinch in/out (zoom in/out).

Reviewed-by: ?

snowshoe/snowshoe,snowshoe/snowshoe,qtproject/qt-apps-snowshoe,qtproject/qt-apps-snowshoe,snowshoe/snowshoe,qtproject/qt-apps-snowshoe