[session] move context manager logic in the security context manager
The `init_security` and `reset_security` method have no other user that the context manager itself. Having dedicated public function is not useful.
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()