rename server.session.transaction into server.session.connection The ongoing rework of the API to access the database include the splitting of Session in two objects: The ``Session`` object will only hold credential (user) and global session data. A new object will publicly emerge to handle a database access. This object is named ``Connection`` since that the way database accessors with the same property are named in other system. So we renamed the ``Transaction`` object into ``Connection``. The ``Transaction`` object have already grown in the direction of something directly usable by generic code, but the name ``Transaction`` is ill suited as such object can be used for multiple database transaction in a row. Related to #2503918

sync_schema_props_perms('EmailAddress')

for source in rql('CWSource X WHERE X type "pyrorql"').entities():
    sconfig = source.dictconfig
    nsid = sconfig.pop('pyro-ns-id', config.appid)
    nshost = sconfig.pop('pyro-ns-host', '')
    nsgroup = sconfig.pop('pyro-ns-group', ':cubicweb')
    if nsgroup:
        nsgroup += '.'
    source.cw_set(url=u'pyro://%s/%s%s' % (nshost, nsgroup, nsid))
    source.update_config(skip_unknown=True, **sconfig)

commit()