[migration] make 'session' object be a server-side Connection, not ClientConnection
I think this better corresponds to the previous behaviour. However,
that Connection does not have a cnxset, which should probably be changed
(for both interactive_shell and cmd_process_script).
#!/bin/sh -e
if [ "$1" = "purge" ] ; then
update-rc.d cubicweb remove >/dev/null
fi
#DEBHELPER#
exit 0