change extlite connection handling: connection may not be shared among threads but it's fine to have multiple connections open in several threads (as demonstrated by unittest_extlite)
#! /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