[setup] fix CWDevelop to keep compat with python 2.7
in Python, 2.7, setuptools.command.develop.develop is an old style class, thus
it cannot be called with super.
#! /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