fix(package): update react-native to version 0.60.1

Closes #616

Author: greenkeeper[bot]

package.json

@@ -44,7 +44,7 @@
     "react-dom": "^16.5.2",
     "react-ga": "^2.5.3",
     "react-loadable": "^5.5.0",
-    "react-native": "^0.57.2",
+    "react-native": "^0.60.1",
     "react-router-dom": "^4.3.1",
     "react-scripts": "^2.0.3",
     "react-share": "^2.3.1",