3.0.0

* Recreate iframe shim from TEMPLATE for each instance, instead of
  cloning a class level cached Node instance, so that ownerDocument
  can be set to match the bounding box.

3.0.0 beta 1

No Changes

3.0.0PR2 - Initial release

Module Name: "widget-stack"

An extension, which can be used with Base.build to add zIndex and 
shimming support to a Widget class.