Minor fix in the PreferenceScreen layout
Define layout_height and layout_width to remove warnings.
Add cover debug : Display cover retriever name
When the CoverManager is in DEBUG mode the cover retriever name (Lastfm ...) is displayed as a notification (toast)
Fix MusicBrainz Cover Fetcher
- Use release-group instead of release for albums. (http://musicbrainz.org/doc/Release_Group)
- Use an Http connection instead of an HttpClient to perform request to the web service to be able to handle redirections easily. It is now needed to fetch covers from them.
avoid NPE in Music.getPath()
remove albumartist user option and make getAlbums return merged lists
Go to Album Artist in NowPlaying
add albumCache and cachedMPD
replace MPD by CachedMPD (without enabling it)
add option whether to use local album cache
allow AlbumsGridFragment for full album list when using cache
 move Artist.isAlbumArtist to Album.hasAlbumArtist
 use hasAlbumArtist for AlbumDetails in AlbumCache
remove Artist from SongsFragment
compare by isSameOnList in Item.merged()
check for hasAlbumArtist in Album.isSameOnList
fix sorting albums by artists and albumartists
adjust Searchactivity