work in SSLv3: initial handshake has no extensions but includes MCSV, if
server indicates RI support then renegotiation handshakes include RI.

NB: current MCSV value is bogus for testing only, will be updated when we
have an official value.

Change mismatch alerts to handshake_failure as required by spec.

Also have some debugging fprintfs so we can clearly see what is going on
if OPENSSL_RI_DEBUG is set.

Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>

Add extension support to DTLS code mainly using existing implementation for
TLS.

Submitted by: Martin Olsson <molsson@opera.com>

Check for bn_wexpand errors in bn_mul.c

Submitted by: steve@openssl.org

Initialize fields correctly if pem_str or info are NULL in  EVP_PKEY_asn1_new().

Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

Add Renegotiation extension to DTLS, fix DTLS ClientHello processing bug.

Submitted by: "Andrzej Chmielowiec" <achmielowiec@enigma.com.pl>, steve@openssl.org
Approved by: steve@openssl.org

Truncate hash if it is too large: as required by FIPS 186-3.

Submitted by: Mounir IDRASSI <mounir.idrassi@idrix.net>
Approved by: steve@openssl.org

Check return value of ECDSA_sign() properly.

PR: 2107

one in the OpenSSL_0_9_8-stable branch.

PR: 2109

x86masm.pl: fix linker warning.
PR: 2094,2095

(update from HEAD).
PR: 2086

PR: 2069

Submitted by: Rob Austein <sra@hactrn.net>
Approved by: steve@openssl.org

Initialise atm.flags to 0.

Submitted by: Roumen Petrov <openssl@roumenpetrov.info>
Approved by: steve@openssl.org

Another mingw fix.

Submitted by: Arkadiusz Miskiewicz <arekm@maven.pl>
Approved by: steve@openssl.org

Fix for out range of signed 32bit displacement error on newer binutils
in file sha1-x86_64.pl

Submitted by: Doug Kaufman <dkaufman@rahul.net>
Approved by: steve@openssl.org

Fixes for tests in cms-test.pl

Submitted by: Aleksey Samsonov <s4ms0n0v@gmail.com>
Approved by: steve@openssl.org

Fix memory leak in d2i_PublicKey().

Submitted by: Corinna Vinschen <vinschen@redhat.com>
Approved by: steve@openssl.org

For Cygwin enable zlib and mdc2 by default.

Submitted by: Hanno Böck <hanno@hboeck.de>
Approved by: steve@openssl.org

Create engines dir if it doesn't already exist.