Merge "Use Jan 1 2009 as timestamp in OTA update ZIPs." into nyc-dev

                int hash = getDigestAlgorithm(publicKey, minSdkVersion);

                // Assume the certificate is valid for at least an hour.

                long timestamp = publicKey.getNotBefore().getTime() + 3600L * 1000;

                Manifest manifest = addDigestsToManifest(inputJar, hash);

                copyFiles(manifest, inputJar, outputJar, timestamp, 0);

                addOtacert(outputJar, publicKeyFile, timestamp, manifest, hash);