Also, delay the shadowing of DO..LOOP's I for as long as possible.

Also, made LIST properly handle full 64-chars lines not ending with
a null or CR. Previously, such a line would be accompanied by its
following line, duplicating that line's output.

Lines edited with the Block editor end with 0xd and (print) spits
spurious CR when printing those lines.

Also, properly initialize ACC in BROWSE.

And use them in all places they make sense.

and remove cfspack, which will not ever be used again.