[migration/3.18] Add add_permission relation definitions earlier
Otherwise sync_schema_props_perms('defaultval') does not work because the
later relation is not in schema.
#! /bin/sh -e
#
if [ "$1" = configure ]; then
if which install-docs >/dev/null 2>&1; then
install-docs -i /usr/share/doc-base/cubicweb-doc
fi
fi
#DEBHELPER#
exit 0