24 Feb 88   MCLib 1.6

  There was a small mistake in the Error Handler in 1.5, causing instant
  collapse if an OS Error happened.

  Also, there was a mistake in the SWI procedure, whereby the branch to the
  SWI planted on the stack could be off by a few (result: chaos).

22 Feb 88   Map 1.5

  Definition of argument to Abort changed: it is now an Arthur error code
  rather than a small integer.

22 Feb 88   IOLib 1.8

  Implementation of Date and TimeOfDay changed.  As a result, the procedures
  BinaryTime (to get current time as 5-byte quantity, as for timestamps) and
  ExplodeBinaryTime now exist.	BinaryTime, Date and Time all now work properly
  for Arthur.

  WriteF now has a %f format descriptor, for Reals.

  Fault (called on IO system faults) now no longer attempts to call Abort if
  it isn't defined.

  As a result of improvements to mclib 1.5, faults on file output are now no
  longer concealed.

22 Feb 88   MCLib 1.5

  The event handling mechanism is now capable of handling events numbered
  above 9

  Escape handling now works under Arthur

  Abort handlers are installed in the approved way, so that BCPL programs may
  be run under DBug.

  OSBPut reports errors correctly

  The SWI function has been added

  The OSByte2 function has been added.
