code: function onState(data) {
    if (data.status === social.STATUS.OFFLINE) {
      if (users.hasOwnProperty(data.userId)) {
        delete users[data.userId];
      }
    } else {  //Only track non-offline clients
      users[data.userId] = data;
    }
    sendUsers();
  
    // Handle my state separately
    if (myClientState !== null && data.clientId === myClientState.clientId) {
      view.postMessage({
        event: 'status',
        online: data.status === social.STATUS.ONLINE
      });
      view.postMessage({'height': data.status === social.STATUS.ONLINE ? 384 : 109});
      if (data.status !== social.STATUS.ONLINE) {
        logger.error('got status ' + data.status + ' from social');
        doLogin();
      }
    }
  }
docs: On newly online or offline clients, let's update the roster