Changes in version 1.4:

"Not ready" status is now detected after "close", so that the correct
status can be shown when the drive becomes ready.

The drive is now only polled every second while playing. It is not
polled if paused, stopped or if no disc is present.

If switching to playlist mode while playing, the current track is now
selected in the list.

The targets "install-compress", "install-strip-compress",
"install-info-compress" and "install-man-compress" have been added to
the Makefile.
