Many style/formatting edits.
Bug fixes.
Reverted some previous changes temporarily while reviewing new code.
Merged Baker's "virtual device" in a simpler form. ODS2 will assign a sensible
drive name when mounting /image (== /virtual). If a specific drive name
is desired, mount /image drivename=filespec.
Files can be quoted, or use set qualifier_style unix if slashes are a problem.
Note that mount on the command line allows tab completion.
Moved "statistics" command into show.
Coded support for import/binary (fixed records, 512 bytes).
Converted fgets to fgetline
Added show devices for Unix (limited by standard APIs)
Got rid of separate ODS2-Image build.
This version was on the VMS FREEWARE disk at some point.
It shipped with the included .exes, though modern windows systems certainly don't support the
direct access to SCSI DLL that's used.
