Following earlier beta releases of iOS 8.1, Apple today formally announced the release of the first point update to September’s iOS 8.0. iOS 8.1 adds support for Apple Pay, the NFC-dependent wireless transaction technology introduced in the iPhone 6 and iPhone 6 Plus, as well as bringing back user-requested features, including the Camera Roll. Apple is also using iOS 8.1 to debut the iCloud Photo Library tied in with the public beta of Photos,…