[repo] Drop repo.new_session method
we should not go through Session to create Connection anymore.
This is unofficial API, no backward compat for now.
.. _tools_module:
:mod:`cubicweb.pyramid.tools`
-----------------------------
.. automodule:: cubicweb.pyramid.tools
.. autofunction:: includeme
.. autofunction:: clone_user
.. autofunction:: cnx_attach_entity
.. autofunction:: cached_build_user
.. autofunction:: clear_cache