Selectmenu: Test cleanup
Selectmenu: Test cleanup
Selectmenu: Test cleanup
Selectmenu: Test cleanup
Accordion demo: Refresh accordion after sorting
Autocomplete demo: Datasource needs min. 3 characters
Spinner tests: Remove mousewheel plugin

The plugin isn't needed nor used in the unit tests, which just trigger the
appropriate events. This works around the failure in Firefox 27/28 that we'll
try to track down separately.

Ref #9988
Button demo: Remove unnecessary anchors from popp menu
Effect demo: Change anchor to button element
Position demo: Address todo comment by replacing plugin methods
Resizable demo: Fix description text, replacing the copy-pasta
Slider demo: Make read only inputs readonly
Sortable demo: Allow dropping to empty list and improve general styling
Spinner demo: Reorder input and select to be consistent with other demos
Tabs demo: Improve manipulation by providing default values for new tab
Tooltip demo: Position tooltips next to inputs instead of over inputs
Tooltip demo: Mention the option used in the track demo
Tooltip demo: We have no plans for interactive tooltips
Tooltip demo: Add a menu to the playlist button
Widget demo: Replace 'go black' with 'go screen' to keep text readable