-Big breakthrough - the code can now distinguish between
-normal "printable" keys and keys that should not be
-printed (e.g. arrow keys, Ctrl sequences and so on).
+You can edit a command-line (using backspace).
+You can move around with left and right-arrow
+keys.
+Command-history can be recalled from a file with
+the up-arrow key, and you can scroll up and down
+through the command-history.