to list and update a directory.
</p>
<p>
The dir lister deals with the kiojob used to list and update a directory
and has signals for the user of this class (e.g. konqueror view or
kdesktop) to create/destroy its items when asked.
</p>
<p>
This class is independent from the graphical representation of the dir
(icon container, tree view, ...) and it stores the items (as KFileItems).
</p>
<p>
Typical usage :
<li> Create an instance. </li>
<li> Connect to at least update, clear, itemsAdded, and itemsDeleted. <