Changes:
- small bug fixes:
  - no problems with "flush.library"
  - fixed bug in ARexx interface
- memory pools

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                17295   37024  46.7% -lh5- a1c6 Feb 25  1994 libs/ums.library
[generic]                18875   41252  45.8% -lh5- 4525 Feb 25  1994 libs/ums.library.debug
[generic]                  228     339  67.3% -lh5- 7b1c Feb 25  1994 readme
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         3 files   36398   78615  46.3%            Apr 25  1994