[Dirvish] expire rules

[Terry]

> You *do* realize that the expiry rules only affect new images, no?
> dirvish-expire looks at the summary files. Those are created according
> to the configuration at time of making the image.
>
> So, no, master.conf or default.conf don't overrule what dirvish-expire
> will do.
>
> You can however simply edit the summary files to adjust the expiry.
>
>
>
> Paul

Thanks Paul I didn't realize that no now it all becomes clear and I can 
work with that
Thanks again
Terry