gitbucket.core.api
https://developer.github.com/v3/repos/statuses/#create-a-status https://developer.github.com/v3/repos/statuses/#list-statuses-for-a-specific-ref
https://developer.github.com/v3/repos/statuses/#create-a-status https://developer.github.com/v3/repos/statuses/#list-statuses-for-a-specific-ref