None of the /group methods are implemented: - https://www.hipchat.com/docs/apiv2/method/view_group - https://www.hipchat.com/docs/apiv2/method/get_group_avatar - https://www.hipchat.com/docs/apiv2/method/update_group_avatar - https://www.hipchat.com/docs/apiv2/method/delete_group_avatar - https://www.hipchat.com/docs/apiv2/method/group_statistics
