Rename config/locale to config/locales
If you don't name it correctly, it doesn't get loaded. see:
https://github.com/rails/rails/blob/d68e1ba2f7a698eb143418d9423db2f31c2ea660/railties/lib/rails/engine.rb#L581
Merge pull request #190 from projecthydra/rename_locales

Rename config/locale to config/locales