Include new 'status' field to be one of 'none', 'green', 'red', 'orange' or 'unsupported' if news are not supported by the master (e.g. proxy).
Add --news option to include a 'news' field with the raw news.
Adapt the tests to take news and 'status' field into consideration.
News are not supported by proxy, so 'status' is always 'unsupported' on proxy.