These translation sections are not needed anymore, Babel can
generate translation files without them.
Change-Id: I50f4af86556f9873df395f6469febdc1908311ae
Fix python setup.py extract_messages (babel.cfg
was missing). Move Babel to test-requires and
add the .pot file to git.
Change-Id: I46d7ccaf3194832cdc72a8567c4777737da2e1aa