hmac-sha512的js包

CryptoJS v3.1.2 code.google.com/p/crypto-js (c) 2009-2013 by Jeff Mott. All rights reserved. code.google.com/p/crypto-js/wiki/License 哈西512的加密js引入包， 用法：var hash = CryptoJS.HmacSHA512("Message", "Secret Passphrase");