[project] removed mp3info dependency
split replaced #track_num with #track_number and #total_tracks; #disc_num with #disc_number and #total_discs
[spec] added tests for consistency*m4a
[project] remove idea files
[taggers] moved #method_missing to base
[MP3Tagger] fixed #musicbrainz_recording_id
[MP4Tagger] added missing attributes
updated README
added wiki attributes table script