Fix for cart management in skin settings.
Revert "Fix for cart management in skin settings."

This reverts commit 20360152a97a9cffa108e66966ee35446d604a8e.
Fixes for ClearArt.
Enabled ClearArt for Card List view.
Fix for star rating management.
Made the "Settings" button in quit menu always visible.
Added support for Mediaportal Pvr plugin.