Allow popInitialNotification to be set on secondary calls to configure().
Allow popInitialNotification to be set on secondary calls to configure().

zo0r/react-native-push-notification,CMP-Studio/react-native-push-notification,zo0r/react-native-push-notification,ErikMikkelson/react-native-push-notification,CMP-Studio/react-native-push-notification,zo0r/react-native-push-notification,ErikMikkelson/react-native-push-notification