Update translation keys for bg, cy, hy and ro
Regenerate locales

Make sure locale files are up-to-date with the latest keys from en.yml
Correct encoding errors
Crib translations from elsewhere in the locale

New keys introduced in master after merging of countries and
territory types
Load translations for az, he, hi, ru, so and ur
Regenerate locales to add missing keys
Revert Hindi translations

Inconsistencies and errors found in the translations so rejecting for
now.
Put directions back for right-to-left languages
Correct translation string interpolation
Remove incorrect translation
Put back language name for Armenian
Merge pull request #383 from alphagov/update-translation-keys

Update translation keys

https://www.pivotaltracker.com/story/show/46550337