• add Net_SSH2::enableQuietMode() for suppressing stderr
• add Crypt_RSA::__toString() and Crypt_RSA::getSize()
• fix problems with File_X509::validateDate(), File_X509::sign() and Crypt_RSA::verify()
• use OpenSSL to speed up modular exponention in Math_BigInteger
• improved timeout functionality in Net_SSH2
• add support for SFTPv2
• add support for CRLs in File_X509
• SSH-2.0-SSH doesn't implement hmac-*-96 correctly