[rekonq] Opening external links

[Matgic78]

> So, general idea seems using #3 as default. Ok.
> Next questions are:
> - should we use this and stop (so, NO settings, always #3)?
> - drop #2?
> - provide a better (and shorter) explanation for #3?
> - something else? no, please.. ;)

Shorter explanation for #3 : always in current desktop
Do you think it is undestandable ? I'm sure users will undestand when they 
will see but probably not when they will read...