chore(package): update react to version 16.3.1

Closes #24

Author: greenkeeper[bot]

package.json

@@ -49,7 +49,7 @@
     "eslint-plugin-import": "^2.8.0",
     "in-publish": "^2.0.0",
     "mocha": "^4.0.1",
-    "react": "~15.4",
+    "react": "~16.3.1",
     "react-dom": "~15.4",
     "react-native": "^0.42.0",
     "react-native-mock": "^0.3.1",