Updated CW tutorial.
* Summarized the list of steps to create a new cube.
* Added a subsection on writing entities.
* Added a subsection on modifying the schema and updating the corresponding instance.
#! /bin/sh -e
case "$1" in
remove)
if [ -x "/etc/init.d/cubicweb-ctl" ]; then
invoke-rc.d cubicweb-ctl stop || true
fi
;;
esac
#DEBHELPER#
exit 0