chore(package): update eslint-plugin-react to version 6.4.1

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -46,7 +46,7 @@
     "css-modules-require-hook": "4.0.5",
     "eslint": "3.7.1",
     "eslint-loader": "1.5.0",
-    "eslint-plugin-react": "6.2.2",
+    "eslint-plugin-react": "6.4.1",
     "gh-pages": "0.11.0",
     "glob": "7.1.1",
     "html-webpack-plugin": "2.22.0",