Menu Tests: Remove unused unit tests and add new unit tests to improve coverage.
Menu Tests: Increase timeout on page up/down test
Accordion: Use .show()/.hide() for initial panel visibility.
Autocomplete: We no longer need to remove aria attributes on destroy.
Accordion: Coding standards.
Autocomplete: make categories work again, needed because of Menu widget changes (ui-menu-divider), see revision: 44ef35eb6f8aa33c2a2a9e4145e79df74d190d5c
Autocomplete: make categories work again (follow-up)
Draggable: Apply ui-draggable-dragging class prior to calculating dimensions. Fixes #8349 - Draggable: Incorrect dimensions used if .ui-draggable-dragging changes dimensions
Revert "Autocomplete: make categories work again (follow-up)"

This reverts commit db9a015485f0a5dbbb12b22720dbb2111cda2dd8.
Revert "Autocomplete: make categories work again, needed because of Menu widget changes (ui-menu-divider), see revision: 44ef35eb6f8aa33c2a2a9e4145e79df74d190d5c"

This reverts commit 07d8d5cbb1e20521f2ec55145ce45d08d8ee5a1f.
Draggable: Fixed destroy method.
Resizable: Fixed destroy method.
Selectable: Fixed destroy method.
Droppable: Fixed destroy method.
Spinner: Use _destroy() instead of destroy().
Accordion: Make sure there's always one header with tabindex=0. Fixes #8348 - Accordion: Collapsed accordion is removed from tab order.
Autocomplete: Remove left-over clearTimeout( this.closing ).
Menu: Minor cleanup.
Menu: Better handling of divider elements and menu items without anchors.
Menu Tests: Make the elements without anchors look like group headings and remove disabled elements to focus on dividers and no anchor elements