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, WidgetPositionAlign,

WidgetPositionConstrain and WidgetStdMod extensions.

3.1.1

No changes

3.1.0

* Added WidgetConstrain support to the packaged Overlay class.

* Fixed centering when content is set in constructor.

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