Spinner Tests: Fix IE test failures by removing timing dependencies from focus/blur tests.
Sortable: Copy the cell structure when sorting a table row. Fixes #9185 - Sortable: Placeholder breaks table-layout: fixed.
Draggable: Stop erroneously overriding scroll offsets for root nodes. Fixes #6258 - Draggable: not following mouse when scrolled and using overflow-y: scroll.