- Duplicate TRACKNUMBER removed.
- Tags starting with = display correctly now, instead of
  displaying a random piece of memory.
- UTF8 decoding wasn't performed for unrecognized tags.
- We almost would have had our first security problem.
  Never get printf format strings from anything other than
  const strings; certainly not from tag names!

svn path=/trunk/vorbis-tools/; revision=3274