CleanupSlice: cleans up sliced Imagine3.x objects (TDDD format)
Joins vertices according to user defined boundaries, resulting in much
smaller, cleaner and better phong shaded objects.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 2685    5837  46.0% -lh5- 34a6 Oct  5  1995 CleanupSlice.doc
[generic]                13635   25364  53.8% -lh5- d604 Oct  9  1995 cs
[generic]                 2041    4158  49.1% -lh5- cc2e Oct  9  1995 cs.ilbm
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         3 files   18361   35359  51.9%            Nov  5  1995