[source schema] fix permission pb on cw_host_config_of relation + add composite on cw_source, so entities from a source are properly removed when the source is removed
#! /bin/sh -e#if [ "$1" = remove -o "$1" = upgrade ]; then if which install-docs >/dev/null 2>&1; then install-docs -r cubicweb-doc fifi#DEBHELPER#exit 0