Merge branch 'master' of github.com:MediaPortal/MediaPortal-1 into MP1-4580-BUG-Not_able_to_open_music_playlist_from_MediaPortal_in_Windows_mediaplayer
MP1-4580: Add Configuration Option to save MP3 Music Playlists in UTF8 Encoding (Default: Windows-1252)
MP1-4580: m3u8 is now a valid MP3 Playlist Extension
MP1-4580: Saving MP3 Playlists with Windows-1252 Encoding or UTF8 Encoding based on Settings
MP1-4580: Handle loading of default Playlist based on Encoding selected
MP1-4580: Added m3u8 as valid Playlist Extension to various places
Merge remote-tracking branch 'remotes/upstream/MP1-4580-BUG-Not_able_to_open_music_playlist_from_MediaPortal_in_Windows_mediaplayer' into 1.10.0Fork-BDJ