cda: fix for when freedb returns more than 10 matches
flac: add open2, use new streamer hint
vorbis: open2 and streamer hint
cda: error checks and remove testing code
bump API for DDB_DECODER_HINT_NEED_BITRATE
update variable names and comments for clarity
Merge pull request #51 from Lithopsian/search

Fix for #1077, add open2 to flac and vorbis, tidy ups in cdda