ID3 version 2 tag support
make id3tag.h dependent on lame.h instead of the other way around
partial support for ID3-style comments from a patch by Ralph Giles
don't add ID3 tags to Ogg Vorbis output
additional help for ID3-style comments in Ogg Vorbis output from a patch by Ralph Giles
Backed out some large changes done in November which introduced at least two bugs. Also fixed other older bug in id3tag_write_v2.
- Simplified prologue of all public functions, removing intermediate "spec"
- Changed "highest" to "higher" to describe recommended quality setting in