Allow relationship's resource identifier objects to have a "meta" value as well, following JSON API specification: http://jsonapi.org/format/#document-resource-identifier-objects. Additionaly add a utility method to retrieve a relation link's meta value.
Allow relationship's resource identifier objects to have a "meta" value as well, following JSON API specification: http://jsonapi.org/format/#document-resource-identifier-objects. Additionaly add a utility method to retrieve a relation link's meta value.

woohoolabs/yang