EmberJS + ember-intl: automatically generate additional locales

I'm using Ember with ember-intl for localization and have a en.json file that I want to translate into several different locales (different JSONs). Is there any tool that can help with this?

Initially I wanted to parse the source json file with a script and translate it by using Google Translate API. However, the parsing is pretty complex since ember-intl uses the ICU Message Syntax