DJ USB Tkit 0.1.2

• Fix CDJ hardware hangs on pathological Unicode metadata (long
  combining-mark "zalgo" stacks and names mixing many unrelated Unicode
  scripts) in exported titles, artist, and album names, and in on-disk
  export file/folder names. Thanks to 00000ooooo's album "–5"
  (https://00000ooooo.bandcamp.com/album/--5) for the real-world torture
  test.
• Fix a MIPS unaligned-read hardware freeze for non-ASCII album names.

Note: while testing against that album, rekordbox threw an
"unexpected error" and broke playlists on export of the same USB.