Update comment on rewritten action module. Add alternative MIME types for
m3u and asx, spport asf detection and extraction. Fix listformat→source arg.
Move save() and filename handling out of save_playlist. Fix mediafmt_t
lookup and print warning when there's an audio-response on playlist fetching
(and it does happen). Change myoggradio plugin "format" population, and set
listformat to "mixed(..)" for automatic probing.