message: chore(package): update react-test-renderer to version 15.5.4
  Closes
diff: "postcss-cli": "3.1.1",
  "react": "15.4.2",
  "react-dom": "15.4.2",
  - "react-test-renderer": "15.4.2",
  + "react-test-renderer": "15.5.4",
  "uglify-js": "2.8.22",
  "uglifyify": "3.0.4",
  "watchify": "3.9.0"
  