Updated translations from Transifex

Forward port of e9c8aefbcee5 from stable/1.7.x
Fixed #23569 -- Allowed using configs besides dictConfig in LOGGING_CONFIG.
Added flat=False to signature of QuerySet.values_list()
Fixed #15089 -- Allowed contrib.sites to lookup the current site based on request.get_host().

Thanks Claude Paroz, Riccardo Magliocchetti, and Damian Moore
for contributions to the patch.