Patch, WaitCursor during factorial

[Eike Lange]

Hi Raphael!

Raphael Kubo da Costa schrieb:
> IMO, the patch would look cleaner if you just called 
> QApplication::setOverrideCursor(QCursor(Qt::WaitCursor)) and 
> QApplication::restoreOverrideCursor(), and added the appropriate #includes.
>
>   

Done and attached. Thank you for reviewing.

> Does kcalc currently have a maintainer?
>   

According to #kde-devel, kcalc has no maintainer. But does it really 
need one?

Eike

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