message: Fix bug where update link lacked modal decorator
diff: @@ -99,7 +99,7 @@ const UpdateInProgressAlert = () => <div className="alert alert-info">
  const UpdatesAvailableAlert = ({cv}) => <div className="alert alert-info">
  <i className="pficon pficon-info" aria-hidden={true} />
  Cluster update is available.
  - <Button bsStyle="link" onClick={()=> (launchUpdateModal(cv))}>
  + <Button bsStyle="link" className="co-m-modal-link" onClick={()=> (launchUpdateModal(cv))}>
  Update Now
  </Button>
  </div>;
  @@ -110,7 +110,7 @@ const UpdateStatus: React.SFC<UpdateStatusProps> = ({cv}) => {
  return <React.Fragment>
  {
  status === ClusterUpdateStatus.UpdatesAvailable
  - ? <Button bsStyle="link" onClick={() => (launchUpdateModal(cv))}>
  + ? <Button bsStyle="link" className="co-m-modal-link" onClick={() => (launchUpdateModal(cv))}>
  <i className={iconClass} aria-hidden={true}></i>
  &nbsp;
  {status}
  