Battery Monitor revamp

[Kai Uwe Broulik]

Is the graphic ok that way? Dunno what I could do about the other issue you 
mentioned but it has been that for years now and doesn't really matter at the 
usual size.

What's missing now before the battery monitor can go into master?
 - Discussion about remaining time. The strings are in place, the items 
hidden, so we could add this back any time if we choose to and if the 
prerequisities in kdelibs are given.
 - Once I commit the new battery icon I will remove the overlay and move it 
below the icon when not constrained. Settings dialog will then also go.
 - I guess needs some testing on RTL layout? Don't know how to test that 
though and from what I can tell QML mirrors the anchoring then, so it should 
all just work[tm] ?

Greetings