Email producers with order/delivery instructions #275

Would be great to get a review of this as a sanity check.
This should be defined in its own file. I've seen projects where all the jobs were grouped in `app/jobs/`, and that seemed to work well. To make that happen, pop that definition in `app/jobs/order_cycle_notification_job.rb`, and then you'll need to tell Rails to load them in `config/application.rb`:

```ruby
config.autoload_paths += %W(
  #{config.root}/app/presenters
  #{config.root}/app/jobs
)