v2.2.0

• Reduce module size by removing the test and benchmark files from the published package
• Accept undefined as circularValue option to remove circular properties from the serialized output:

import { configure } from 'safe-stable-stringify'

const object = { array: [] }
object.circular = object;
object.array.push(object)

configure({ circularValue: undefined })(object)
// '{"array":[null]}'