old_contents: // Add images subscription to admin to allow orion to display images uploaded with cfs
  orion.admin.addAdminSubscription('images');
  
new_contents: // Add images and attachments subscriptions to admin to allow orion to properly display images and files uploaded with cfs
  orion.admin.addAdminSubscription('images');
  orion.admin.addAdminSubscription('attachments');
  
subject: Add subscription for attachments collection to admin