DefaultFocusManager: better handling of focus out event from native focus to remove listener from the correct dispatcher (closes #901)
Drawers: open and close events now pass the opened or closed drawer in the data property (closes #867)
HorizontalLayout, VerticalLayout: support for pivots (references #765)
TiledRowsLayout, TiledColumnsLayout: support for pivots (references #765)
AnchorLayout: support for pivots (closes #765)