Merge pull request #878 from richie-south/master

Fix: could not find main:"index" in package.json

package.json

@@ -2,7 +2,7 @@
   "name": "react-native-push-notification",
   "version": "3.2.1",
   "description": "React Native Local and Remote Notifications",
-  "main": "index",
+  "main": "index.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
   },