Ember.Handlebars.helper 't', (path, params..., options)->
  toptions = options.hash
  if params.length and typeof(params[0].serialize) is 'function'
    $.extend toptions, params[0].serialize()
  text = t(path, toptions)
  tag = if options.hash.bare then text else "<span data-t='#{path}' class='translation' data-t-attributes='#{JSON.stringify(toptions)}'>#{text}</span>"
  tag.htmlSafe()