[cwconfig] drop importing legacy cubes This finally drop support for legacy cubes. In cwconfig, don't load modules in the "cubes" namespace. In cube_pkginfo() handle CW_MIGRATION_MAP which wasn't working with new style cube. Drop all method specific to legacy cubes importer: cubes_search_path(), extrapath(), cls_adjust_sys_path() Drop environment variables related to legacy cubes: CW_CUBES_PATH and CW_CUBES_DIR

.. _session_module:

:mod:`cubicweb.pyramid.session`
-------------------------------

.. automodule:: cubicweb.pyramid.session

    .. autofunction:: includeme

    .. autofunction:: CWSessionFactory