bugs to fix
-----------

- make it not to cache PROGDIR:Fonts/ !

- make it save all directories of FONTS: assign to cache, to detect if cache
  need to be rebuilt (adding / removing assign(s) to FONTS: must trigger
  rebuild).

- fix asl requesters fonts scanning (at least v44), it doesn't seem to stop
  and refresh the requester until you hit some gadget.

done
----

- add NewScaledDiskFont() support. Even though bitmapscaled fonts suck, some
  apps rely on a working API call .....
