and there were some code paths that weren't being called because of this.

Fixed the errors that this uncovered including returning proper values from
DynamicPlaylist::items() and SearchPlaylist::items().  Previously it was
returning the set of "matched" items from the component playlists rather
than the actual displayed items in the playlist.

This also makes it possible to have a DynamicPlaylist composed of search
playlists, which was the problem that lead to the discovery of the issues
above.

svn path=/trunk/kdemultimedia/juk/; revision=238884