[testlib] introduce a validator that check xml-well formness
This validator simply check XML is well formed and accept any entities
(think HTML defines much more entities than bare XML)
#! /bin/sh -ecase "$1" in remove) if [ -x "/etc/init.d/cubicweb-ctl" ]; then invoke-rc.d cubicweb-ctl stop || true fi ;;esac#DEBHELPER#exit 0