code: public ConsulResponse<List<ServiceHealth>> getAllNodes(String service) {
          return getAllNodes(service, null, null, RequestOptions.BLANK);
      }
docs: Retrieves the healthchecks for all nodes.
  <p>
  GET /v1/health/service/{service}
  
  @param service The service to query.
  @return A {@link io.advantageous.consul.domain.ConsulResponse} containing a list of
  {@link io.advantageous.consul.domain.HealthCheck} objects.