This is useful for scripts controlled from other KCMs, like e.g.
DesktopChangeOSD which is controlled by the virtual desktop KCM
and should not be listed in the scripts section.
List view is replaced by KPluginSelector. This is not an optimal
solution as it makes it impossible to get the selected item and
reloading seems also not to work after a new script is installed.
This should become a proper Model based view.
This KCM has been implemented by Tamas Krutk in the scope of
Google Code-In.
It is a simple KCM just listing all available scripts and allowing
to import/export them.
This will be further extended alongside the planned scripting changes
in 4.9.
