prefix "tcp://" zmq uris with "zmqpickle" (closes #2574114)
* it turns "tcp://" into "zmqpickle-tcp://"
* will leave room for future non-pickling communications using zmq
#! /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