Implemented showing a music/video/picture playlist in PlaylistFragment even when playback has stopped but the playlist is still available on Kodi. The playlist is now only cleared if the Playlist.OnClear event is received from Kodi. As the pictures playlist does not support moving/removing items this has been disabled for the pictures playlist only. Added a new package org.xbmc.kore.host.actions to hold all Callable's that we use to handle complex interactions with Kodi that use multiple JSON RPC calls. Fixed issue in HostConnectionObserver in method notifySomethingIsPlaying where hostState.lastGetItemResult.label might not be set. Reduced calling (force)refreshPlaylist considerably as it should now be handled by the playlist observer.