fix(package): update react to version 16.3.1

Closes #76

Author: greenkeeper[bot]

package.json

@@ -88,7 +88,7 @@
     "postcss-loader": "2.1.2",
     "promise": "8.0.1",
     "raf": "3.4.0",
-    "react": "16.2.0",
+    "react": "16.3.1",
     "react-dev-utils": "^5.0.0",
     "react-dom": "^16.2.0",
     "react-i18next": "^7.4.0",