Fix broken tests caused by locale configuration (#1875) ...

* Fix broken tests caused by locale configuration

- Add LocaleSet
- Add LocaleFormatter to force proper string formats
- Rename I18n formats to use hyphen
- Add rake task for updating existing languages on DB
- Fix instances of US english in the templates

* Fix FastGettext initializer loader

* Add Amazon S3 creds for Travis

* Revert "Add Amazon S3 creds for Travis"

This reverts commit 366c1a7.

* Fix Faker localization for rake tasks

Was breaking rake db:seed file