Slider: Added inset shadow to track.
Listview: Simplified the split button; don't append another button.
Theme: Adjusted inset shadow.
Deprecated option shadowicon. Add class ui-shadow-icon to a container or an button instead.
Theme: Changed the selector because it was also matching flip switch in static list with form.
Theme: full classnames to improve performance. Cleaned up some comments.
Theme: Group theme inheritance.
Listview: Set theme for whole listview with one class.
Theme: Added missing checkbox and radio classes.
Slider: Flip switch labels were getting the same classes as the container, which they shouldn't.
Update test page to test group theme inheritance.
Controlgroup: Added option theme. Fixes #5301.
Grid: Reverted the uni selector - profiling CSS selector performance.