[session] Kill support for a 'session_open' hook event
To be consistent with dropping of the 'session_close' event, and also because
this is already not called when using pyramid.
:mod:`cubicweb.pyramid`
=======================
.. automodule:: cubicweb.pyramid
.. autofunction:: make_cubicweb_application
.. autofunction:: wsgi_application_from_cwconfig
.. autofunction:: wsgi_application
.. toctree::
:maxdepth: 1
:glob:
pyramid/*