When ZIndex is changed, we can't invalidate children z indices if we're not attached.
Handling document elements better.  When the child collections are modified, we need to propagate inherited.
Now parsing page specifically.  Also serializing FrameworkElement.Resources differently on server-side.  Modified parser to handle.  This allows us to build the resource chain better in json parser.
Updated generic resource dictionary.
Now properly attaching XamlObjectCollections to parent.
Fixed legacy code where Nullstone.As does not exist any more.
Added combobox test.  Fixed namescoping issues.
Fixing issues with ComboBox. More fixes to come.
Popup transforms are now set up on a push basis.
HorizontalOffset and VerticalOffset now update properly.