Code review comment for lp:~larsu/notify-osd/allow-being-replaced

As far as I understand DBus (and the "RequestName" method with its corresponding flags) I need to change our new notification-backend (lp:unity-notifications) to set DBUS_NAME_FLAG_REPLACE_EXISTING when requesting to take over the notification-service.

Just digging through Qt's QDBusConnection-docs to see how that would work. I'll be putting up a branch for it (and linking it here too) once I have that working and tested with your notify-osd branch.