3.0.0
* Modified progressive enhancement use case, to use document
fragments instead of innerHTML to preserve event listeners.
* Fixed use of centered, x and y in the constructor. These all
needed 'lazyAdd' configuration since they had setters which
modified other attribute state.
3.0.0 beta 1
No changes
3.0.0PR2 - Initial release
Module Name: "overlay"
Documentation: http://developer.yahoo.com/yui/3/overlay
Overlay is a positionable and stackable widget, which also
provides support for the standard module format layout,
with a header, body and footer section.
The overlay is built by extending Widget and adding the
WidgetPosition, WidgetStack, WidgetPositionExt and
WidgetStdMod extensions.