message: If the home page is somehow accessed, goto directory
  For example, if someone ends up on /home somehow, just redirect to the directory instead of displaying a very awkward "File not found" plain text in the home page iFrame.
diff: @@ -464,6 +464,10 @@ module.exports = React.createClass({
  this.notifyNewScreen('directory');
  break;
  case 'view_home_page':
  + if (!this._teamToken) {
  + dis.dispatch({action: 'view_room_directory'});
  + return;
  + }
  this._setPage(PageTypes.HomePage);
  this.notifyNewScreen('home');
  break;
  