Things to do
~~~~~~~~~~~~
Fix bugs :)

Support the DOS=HIGH directive in CONFIG.SYS

Optimize the code!  For size and speed.  There are numerous places
where the code is hardly optimal for either.

Swap out when exec'ing? YES! Unless running from a floppy?

^S and ^Q to pause/resume displays.

COPY, BREAK commands on command-line.

Fix environment handling, probably using Steffan Kaiser's library.

Add wildcard support to REN.

Make every command respond to "/?".

Move all text to another file or end of COM file, and only load it
into memory when it is necessary.  This would help to support
multiple languages.

