Bug#747552: mate-power-manager creates popups as persistent, regular windows; leads to huge marco / window switching slowdown

[Stefano Karapetsas]

>> Notification daemons arent running every time, they are just started
>> by dbus when needed
> ...the problem is notification-daemon is not handling notifications
> of mate-power-manager (only mate-notification-daemon is), and instead
> a weird fallback happens.
In this case the problem is notification-daemon, because it must be 
started by dbus when libnotify is used