updated translations

this boils down to:

$ python setup.py extract_messages
$ python setup.py update_catalog --no-fuzzy-matching \
  --ignore-obsolete=true
$ source \
  ../../openstack-infra/project-config/jenkins/scripts/common_translation_update.sh
$ setup_loglevel_vars
$ cleanup_po_files keystone

Change-Id: I2a03f3d7eebe0be0250d4834256dfa3c634dbb48