Replace ssd - playlists

[simoncn]

The transcoding setting is part of the stream URL. This means if your stored playlists use stream URLs (for example, BubbleUPnP does this), you will not get the correct transcoding setting when you change this setting.

The solution is to create server-side playlists stored as .m3u files. These don't use stream URLs and will automatically use the current transcoding setting if this changes.