2.1
---

-Some command line parameters added.

-Added a smaller display mode.

2.0
---

-Pretty much a total rewrite. The cd class has a much cleaner
interface and the internal code is much more maintainable.

-Switched to the new, standard Linux O_NONBLOCK mode.

-Looping and programmed mode were added.

-'Previous' command was removed since I used it maybe five times in
the last 3 years.

-Background mode removed. Same reason as above.

-Qt interface removed.

-Plenty of small stuff I've forgotten.

< 2.0
----

-Old change notices removed, since the program has since then been
almost completely rewritten and there are too many changes to remember.

