private String getHostUrl(Client client) {
    String hubUrl = client.getPaas().getUrl();
    try {
      String temp = new URL(hubUrl).getHost();
      hubUrl = temp;
    } catch (Exception e) {
      // ignore
    }
    return hubUrl;
  }
Constructs a new MatrixRunner with the given TestConfig and List<Tuple>.

@param testConfig TestConfig
@param listOfTuples a list of tuples (containing 1 or multiples kite config objects).
@param parentSuiteName the parent suite name
KITE-Engine/src/main/java/org/webrtc/kite/MatrixRunner.java