Capybara.register_driver :browserstack do |app|
  url = "https://#{Howitzer.cloud_auth_login}:#{Howitzer.cloud_auth_pass}@hub.browserstack.com/wd/hub"
  caps = CapybaraHelpers.w3c_selenium? ? w3c_selenium_browserstack_caps : classic_selenium_browserstack_caps
  CapybaraHelpers.cloud_driver(app, caps, url)