[musicdb] joins against album and song artist views should be LEFT, as some songs/albums have no artist. fixes #15149
[gui] don't show the 'remote path not found' message on directory failure unless it's a share. closes #15091, #15133.
Update XCode project for MP3Codec/libmad removal
Update MSVC project for MP3Codec/libmad removal
Update depends for MP3Codec/libmad removal
paplayer: Remove MP3Codec
dvdplayer: remove MP3Codec
Remove libmad
Update android packaging Makefile for MP3Codec/libmad removal
Cleanup .gitignore for MP3Codec/libmad removal
(squash into "Remove libmad") Remove libmad traces from DllPath headers
(squash into "Remove libmad") Cleanup configure.in