Fix user ID field in Android ConnectPlugin:

Android ConnectPlugin should return the Facebook user ID as `authResponse.userID`, not `authResponse.userId`

Also, use CallbackContext.success or CallbackContext.error instead of CallbackContext.sendPluginResult.
Fix iOS validatoin error: "The app references non-public selector in Moven : id"

See http://stackoverflow.com/questions/14448056/the-app-references-non-public-selector-in-id-facebook-sdk-ios