message: Upgrade react-dev-utils and typescript
diff: "object-assign": "4.1.1",
  "postcss-flexbugs-fixes": "3.2.0",
  "postcss-loader": "2.0.8",
  - "react-dev-utils": "4.1.0",
  + "react-dev-utils": "4.2.1",
  "stylable": "4.0.26",
  "stylable-integration": "6.0.0",
  "style-loader": "0.19.0",
  "ts-loader": "3.1.1",
  "ts-node": "3.3.0",
  "tslib": "1.8.0",
  - "typescript": "2.5.3",
  + "typescript": "2.6.1",
  "url-loader": "0.6.2",
  "webpack": "3.8.1",
  "webpack-dev-server": "2.9.3",
  "fsevents": "1.1.2"
  },
  "devDependencies": {
  - "@types/react": "16.0.18",
  + "@types/react": "16.0.19",
  "@types/react-dom": "16.0.2",
  "react": "16.0.0",
  "react-dom": "16.0.0",
  