Merge pull request #367 from KnisterPeter/greenkeeper/react-15.5.4

Update react to the latest version 🚀

Author: KnisterPeter

package.json

@@ -53,7 +53,7 @@
     "diff": "3.2.0",
     "in-publish": "2.0.0",
     "nyc": "10.2.0",
-    "react": "15.5.3",
+    "react": "15.5.4",
     "rimraf": "2.6.1",
     "source-map-support": "0.4.14",
     "standard-version": "4.0.0",