Removed MetadataStoreException
Removed SQLite3Exception, replaced with GeminiException
Added missing id initializer
Improved GeminiException with function name reporting
Fixes to memory managment in PlaylistService
Reengineered playlist action to attempt refresh of everything playlst
Changed playlistservice methods to take artist and album id's
Sorting fix for getTrackIdsFromAlbum
Bugfixes for cueNextTrack and cuePreviousTrack
Added test for PlaylistService