All to Pixmap server

[Alex Fiestas]

> I'm not sure that koabstraction is the right thing for what you need --
> it's an abstraction to make it easy to create new apps that use the
> calligra backend, that's true, but it's for viewers and other
> interactive applications. I'd say something cstester-like is the right
> way to go for what youneed

As far as I can see all Calligra apps implement "Thumbnails" more or 
less, KoAbstraction would be the place to put a generic Thumbnail API so 
the code for cstester-converter-atopixmap can be unified don't you think ?