Add failing test for different capitalizations of language codes coming from the browser
Handle mixed case language codes coming from the browser or in dark-lang configuration
Add first pass at i18n automation tasks
Rename djangojs.po to djangojs-partial.po in transifex, to prevent header creep
Prep for initial language release
Make i18n tests work with a clean checkout
Update translations (autogenerated message)
Merge pull request #2388 from cpennington/initial-languages

Add initial languages, ready for dark-launch