Update to 1.16:

v1.16
- change code for SSL_check_crl to use X509_STORE_set_flags instead of
          X509_STORE_CTX_set_flags based on bug report from
          <tjtoocool[AT]phreaker[DOT]net >
        - change opened() to report -1 if the IO::Handle is open, but the
          SSL connection failed, needed with HTTP::Daemon::SSL which will send
          an error mssage over the unencrypted socket

(wiz)