Deleted resources have an empty id string

[ob-stripe]

When replying to resource deletion requests, stripe-mock returns an empty string for the id attribute:

$ curl -X DELETE http://localhost:12111/v1/customers/cus_123 -H "Authorization: Bearer sk_test_123"
{
  "deleted": true,
  "id": ""
}

The live API sends back the ID of the deleted resource:

$ curl -X DELETE https://api.stripe.com/v1/customers/cus_... -u $STRIPE_SECRET_KEY:
{
  "id": "cus_...",
  "deleted": true
}

[brandur]

Ah, yep. That's definitely a problem. Thanks for opening.