V2 Language list produces error if more than one language listed in array

[ULLucas]

This error occurs when badge contains multiple id and language, hosted on https://badgecheck.io/, similar to error reported in #202 . It occurs in both the assertion related and the badgeclass related fields.

Ex. This would related would result in error:
"related":[{"id":"https://github.com/filler/url","@language":"af-ZA"},{"id":"https://github.com/filler/url","@language":"sq-AL"},{"id":"https://github.com/filler/url","@language":"ar-DZ"}]

Data Type: Assertion

Open Badges Version: 2.0

Error message: VALIDATE_PROPERTY: Property related in unknown type node has more than the single allowed value.

[jbohrer]

@ULLucas Would you confirm that you are still getting this error under these conditions using the IMS Validator? My understanding is this issue would have been resolved in #211. Thanks.