* Some font format changes (old format supported).
  * Private format of .font files has changed (use FixFonts to create).
  * Default fonts may be larger, proportional.
  * Topaz is now sans-serif.
  * Any size font will be created via scaling as long as textattr.flags
    fpf_designed bit is not set.  if you were asking for an extreme size,
    like size 1 to get smallest available, or 999 to get largest
    available, you will get a big (or very very small) surprise now.
  * Do not use -1 for textattr.flags or styles, nor as the flags for
    availfonts (one high bit now causes availfonts to return different
    structures).  Only set what you know you want.  A kludge has been
    added to the OS to protect applications which currently pass -1 for
    AvailFonts flags.