message: Set parallel option in testem config
diff: @@ -7,6 +7,7 @@ module.exports = {
  test_page: 'tests/index.html?hidepassed&dockcontainer&nocontainer',
  disable_watching: true,
  reporter: new DotReporter(),
  + parallel: 2,
  launch_in_ci: [
  'Chrome',
  ],
  