Feature request: keep current_locale when sending email with ActiveJob

[William Lee]

I am using Active_job and sidekiq to send emails asynchronously. 

But my current_locale is lost when performing the sending. 

I set the I18n.locale by the url patterns of every request.

I used to use Sidekiq, which provide a plugin to store the current_locale, and use it when sending.

But I am now upgrading to Rails 4.2.1, ActiveJob seems it doesn't provide a solution like this.