• resizing the terminal quickly during encoding or -gt no longer leaves
  stale progress bar lines behind or overwrites the lines above them
  (or much less likely)
• the temporary .atmos files keep the non-ASCII characters of the input's
  name (they were transliterated to ASCII, so e.g. Film_é and Film_e
  got the same name)
• smaller binaries (~1.4 MB less): deunicode was removed and regex is
  built without its Unicode tables and speed-ups