message: Run Control Panel as funcitonal component
diff: -import React, { Component } from 'react'
  +import React from 'react'
  import PropTypes from 'prop-types'
  import styles from './RunControl.css'
  import RunNotifications from './RunNotifications'
  import RunProgress from './RunProgress'
  -class RunControl extends Component {
  - render () {
  - const style = this.props.style
  - const running = this.props.running
  - const errors = this.props.errors
  +const RunControl = ({running, paused, errors, style}) => {
  const hasError = errors.length > 0
  - const paused = this.props.paused
  const progress = (1 / 3) * 100
  return (
  <section className={style}>
  @@ -35,7 +30,6 @@ class RunControl extends Component {
  </section>
  )
  }
  -}
  RunControl.propTypes = {
  running: PropTypes.bool,
  