i18n: enhance german translation
i18n.de: manage.py babel update
i18n.de: directions
i18n.de: circling phases
i18n: also extract l_
i18n: add updated messages.pot
i18n.de: babel extract
i18n.de: fix failures produced by `babel update`
i18n.de: update translation
i18n.de: update translation
Merge remote-tracking branch 'fb/i18n_de'