Update example

Author: JoshLipan

example/package.json

@@ -8,7 +8,7 @@
     "test": "jest"
   },
   "dependencies": {
-    "jcore-react-native": "^1.2.10",
+    "jcore-react-native": "^1.2.12",
     "jpush-react-native": "file:..",
     "react": "16.2.0",
     "react-native": "0.52.0",