New devicenotifier moved to kdereview

[Jacopo De Simoi]

> * when an item is expanded, should the background remain painted? it might 
> make it more evident that the item is "open", and it would also allow a way to 
> solve the next point, too. (and if the background remains, perhaps the 
> capacity bar should too?)

Now that I think some more about it... could you please explain more precisely what you mean by that?
If itemBackground stays on the open device, how can we move it to other devices when they are hovered?
Does that mean that we have to close it before selecting another one?