The header bar of the mouse panel can display a title, when
the stack only contains the mouse and the touchscreen subpanel.
This header bar, however, does not inherit the title widget from
the common CcPanel, as it contains the view switcher.
It is needed to add the correct title as a property to the switcher
to let it display this title, if no switcher is.
Signed-off-by: Markus Göllnitz <camelcasenick@bewares.it>
0754e1ef13
