Aws enable locale

A new script to be used from inside an awsbox deployment, to enable certain locales.

Example:

    ssh app@foobar.personatest.org
    $ emacs t.json

Contents of t.json:

    {
        "supported_languages": ["es", "pl", "sq"]
    }

    ./scripts/aws_enable_locales.js t.json

Script takes a few minutes, but will do the following:
* Writes new locales to `/home/app/config.json`
* Re-runs `compress`
* Does `forever restartall`