Fix dragging of UuidAndTitleCache objects into GA editor
ref #6779 Allow dragging of features into authority editor
ref #7011 Migrate dnd
cleanup
fix delete problem for open MultiPageEditors
commits for the CDM Authority Composite and related widgets + drag/drop objects
CdmAuthorityComposite : composite which contains a nebula CompositeTable widget CdmAuthorityTableHeader : table header widget for the CompositeTable widget in CdmAuthorityComposite...