--in order for a dock to be above KeepAbove
windows must contain flag BypassWindowManagerHint.
Unfortunately this flag breaks the experience with
AlwaysVisible state especially the struts and
snapping behavior. This patch recreates a
dockView when a mode is changed and an
update for the flags is needed.
--at the same time move the localGeometry to
dockView in order to trigger properly the
updateAbsGeometry when it is needed, on
window's geometry changes not only when there
is local geometry change
--when a dock is created through corona, the
addDock function reads the mode which is going
to be used and specifys this way the flags that
have to be set during docks creation