Circular remote references results in overflow

[whitlockjc]

It is possible to create a circular reference that json-refs does not catch but it only happens for remote references. Let's say you serve a document at http://yourhostname/swagger.json and within that document you have references that look like http://yourhostname/swagger.json#/definitions/User, when json-refs resolves the remote reference it will find another remote reference pointing to itself and infinitely loop.