message: upgrade expect to 23.6.0
diff: "eslint-plugin-flowtype": "^2.30.0",
  "eslint-plugin-react": "^7.7.0",
  "estree-walker": "^0.5.0",
  - "expect": "^1.16.0",
  + "expect": "^23.6.0",
  "flow-parser": "^0.57.3",
  "karma": "^3.0.0",
  "karma-chrome-launcher": "^0.2.3",
  