Log Message:
Changes 1.13:
* Apply patches from Ian:
* ID3v2:add section BUGS with explanation of how we treat v2.4 frames.
	extract MP3 start bytes even if ID3v2 tag is present.
	recognize MP3 MIME type by start bytes
* Tag.pm:document mime_Pretype(), mime_type().
	New optional arguments to mime_Pretype(), mime_type().
	ID3v2 genre tag with value "Blues" or "(0)" could not be set
		(thanks to Eric Benson for analysis).
* ID3v2_Data.pod: rename s/-/_/ - cygwin buggy, fails manifying
		- this was BS, the problem is elsewhere
* mp3info2: state another time that COMM(eng)[lyrics] is a non-standard place
	  for lyrics...