This is a standalone version of the universal compression codec which will
be used for rkive v2.00 (when I eventually get that finished).

Command line arguments are explained by running rkucwithout arguments.

I have not yet implemented the CTW escape mechanism used in RKIVE v1.9x and
so the compression is not quite as good for small text files.
Unfortunately the speed in this version is slower than the last version, but
it is still faster than RKIVE v1.9x.

Notes:
======

1) Please note that this is only a test program so use it at your own risk.
It is highly likely that it is full of bugs!!!

2) Asking for too large a model within a Win9x dos box will lead to a crash.
The malloc I am currently using seems to crash when it runs out of memory,
something I will find out about later. In the mean time try not to use models
larger than about 55Mb and make certain your DPMI memory setting in your dos
box is 65535k (ie. type this in directly).

3) In standard DOS a DPMI provider is required (such as CWSDPMI which is
distributed on simtel.net in the djgpp area). Make certain that the DPMI
provider is allowing enough swap file space for the memory usage required.

4) Memory usage in the maximum mode (-o16 -x) is 22M for model + 9M for
buffers and hashes = 31Mb total.



Changes:

24/6/1999 - Version 1.04
  Made the command line arguments a bit more consistant.
  Added a few tricks to reduce memory usage (significantly for high orders).
  Maximum order of 16.
  Added unbounded order modelling.
  Improved the escape coding and LOE.
  Added the binary contexts option.
  Made the model automatically adjust to abrupt changes in source type (eg.
  changes between different files in a TAR).

24/6/1999 - Version 1.03
  Fixed a context leak in the higher orders which hurt both compression and
  memory usage.
  Added a little order-1 help for binary files.
  Improved the escape coding a little.
  You can now specify the model size (in megabytes).

20/6/1999 - Version 1.02
  Fixed a NULL pointer problem causing intermittant compression and
  decompression errors.
