[debian] Update description of cubicweb-ctl* packages init scripts are no longer shipped. Avoid mentionning "start" and "stop" command which should not be used in production environments.

.. _req_module:

:mod:`cubicweb.req`
===================

.. automodule:: cubicweb.req

    .. autoexception:: FindEntityError

    .. autoclass:: RequestSessionBase
        :members: