message: semantic html change, remove currentCommand PropType
diff: @@ -22,9 +22,9 @@ export default class RunLog extends Component {
  return (<p {...props}>[{id}] : {description}</p>)
  })
  return (
  - <main className={classnames(style, styles.wrapper)}>
  + <section className={classnames(style, styles.wrapper)}>
  {commandItems}
  - </main>
  + </section>
  )
  }
  }
  @@ -37,6 +37,5 @@ RunLog.propTypes = {
  isConnected: PropTypes.bool.isRequired,
  // TODO(mc, 2017-08-23): use PropTypes.shape (or whatever that method is)
  // instead of object
  - commands: PropTypes.arrayOf(PropTypes.object).isRequired,
  - currentCommand: PropTypes.number.isRequired
  + commands: PropTypes.arrayOf(PropTypes.object).isRequired
  }
  