warning: wrong virtuoso.ini

[seralf]

Hi

after some local experiment, it seems that the virtuoso.ini actually used is the default one which is under /usr/local/virtuoso-opensource/var/lib/virtuoso/db, not the expected one in /virtuoso.ini, thus the folders defined in DirsAllowed seems to be not used.

The only directory used is currently the default one

DirsAllowed = ., /usr/local/virtuoso-opensource/share/virtuoso/vad
```.

I added a PR with an explicit configuration file in `virtuoso.sh`:
https://github.com/anuzzolese/OntoPiA-UI/blob/master/virtuoso/virtuoso.sh#L99