Use hard-coded language display names when displaying language

Wikipedia's ideas of languages and Android's don't exactly match
up and that causes issues everywhere. Let's just pretend Android's
doesn't exist, and we're all good :)

The script that generates the CSVs now requires the unicodecsv
module to be installed.

Bug: 60745
Change-Id: I1da4bb6ea32cdcf2ecf8536d92037761b6cd37f0