Import OpenSSL-1.0.1d.

      o Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
      o Fix OCSP bad key DoS attack CVE-2013-0166
      o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
      o Fix for TLS AESNI record handling flaw CVE-2012-2686
Merge branch 'vendor/OPENSSL'
Update files for OpenSSL-1.0.1d import.
libcsu: Assign environment when environ is NULL

Preloaded libraries can change the environment.  The current logic will
unconditionally reassign the environment, undoing any previous
customization.  This change preserves the previous customization.

Taken-from: FreeBSD SVN 245133 (07 Jan 2013)