Widget and windeco themes for Plasma Next

[David Edmundson]

> Also, we are already battling against so many regressions that a strong
> discontinuity as a different default qstyle is the last thing needed
> (especially when realistically, most applications will be KDE4 ones for a long
> time still)
>
Why would there be discontinuity. QtCurve works under Qt4 as well.  I
was proposing altering both.

David