space between values and units in spinners, fdo#71688

[Stephan Bergmann]

On 01/21/2014 12:59 PM, Caolán McNamara wrote:
> So to resolve this we now have a function formatPercent which takes the
> number and the locale and runs it through icu's PercentInstance to
> format it according to that locale's formatting rule. Which gives e.g.
> "10 %" for de and "10%" for en. (http://site.icu-project.org/)

But at least my copy of Duden "Satz- und Korrekturanweisungen" asks for 
a thin instead of a full space in front of percent (and per-mille) signs 
in German.  Could we handle that, too, or is that beyond the state of 
the art in UI typography?

Stephan