Summary:
Add the RCTBatchedBridge object to the notification's userInfo for consistency with RCTJavaScriptDidLoadNotification, and set the target object to `_parentBridge`.
cc @nicklockwood @tadeuzagallo
Closes https://github.com/facebook/react-native/pull/1243
Github Author: James Ide <ide@jameside.com>
Test Plan: Imported from GitHub, without a `Test Plan:` line.