message: Make sure to pass the roomAlias to the preview header if we have it
diff: @@ -1463,7 +1463,7 @@ module.exports = React.createClass({
  // We have no room object for this room, only the ID.
  // We've got to this room by following a link, possibly a third party invite.
  - var room_alias = this.state.room_alias;
  + const roomAlias = this.state.roomAlias;
  return (
  <div className="mx_RoomView">
  <RoomHeader ref="header"
  @@ -1476,7 +1476,7 @@ module.exports = React.createClass({
  onForgetClick={ this.onForgetClick }
  onRejectClick={ this.onRejectThreepidInviteButtonClicked }
  canPreview={ false } error={ this.state.roomLoadError }
  - roomAlias={room_alias}
  + roomAlias={roomAlias}
  spinner={previewBarSpinner}
  inviterName={inviterName}
  invitedEmail={invitedEmail}
  