Manually updated translations

The workflow boils down to:

 $ sudo easy_install Babel
 $ sudo yum install gettext
 $ python setup.py extract_messages
 $ python setup.py update_catalog --no-fuzzy-matching \
   --ignore-obsolete=true
 $ source \
   ../project-config/jenkins/scripts/common_translation_update.sh
 $ setup_loglevel_vars
 $ cleanup_po_files ceilometer

Change-Id: Ia16b2b15004e0e0cbd4332ed5106ba04f1736ade