Bilingual feature

Hi Khanh,

I'm creating this pull request so that you can try out CircleCI, the CI Charity Map's using to run tests. I've added a few changes to the test suite so if you can merge `rebyn/master` into your working branch, I'd appreciate.

Besides all this, the `en.yml` file would be ready for you in one or two days.

Thank you,
Tu.

@Jun7thprince