mozo-backend/app/assets/javascripts/shared-ember-helpers/translation.js.coffee

Ember.Handlebars.registerHelper 't', (path, params..., options)->
  text = t(path)
  tag = if options.hash.bare then text else "<span data-t='#{path}' data-t-attributes='{}'>#{text}</span>"
  new Handlebars.SafeString tag