[dataimport, migration] more fixes in the spirit of a6c32edabc8d: [entity, metadata] huuum, use resolvable url as cwuri... And fix existing ones. Closes #3390388

#!/bin/sh -e
if [ "$1" = "purge" ] ; then
        update-rc.d cubicweb remove >/dev/null
fi
 
#DEBHELPER#
 
exit 0