calling shlib_wrap.sh doesn't work.

Submitted By: Artem Chuprina <ran@cryptocom.ru>

Check return values of HMAC in tls_P_hash and tls1_generate_key_block.

Although the previous version could in theory crash that would only happen if a
digest call failed. The standard software methods can never fail and only one
ENGINE currently uses digests and it is not compiled in by default.

Submitted By: Ger Hobbelt <ger@hobbelt.com>

Check callback return value when outputting errors.

Submitted By: Ger Hobbelt <ger@hobbelt.com>

Place RSA dependent variable under #ifndef OPENSSL_NO_RSA

- gcm128.c: support for Intel PCLMULQDQ, readability improvements;
- asm/ghash-x86.pl: splitted vanilla, MMX, PCLMULQDQ subroutines;
- asm/ghash-x86_64.pl: add PCLMULQDQ implementations.

be done, it's definitely not the way to do it. So far answer to the
question was to ./config -Wa,--noexecstack (adopted by RedHat).

- introduce common modes_lcl.h;
- ctr128.c: implement additional CRYPTO_ctr128_encrypt_ctr32 interface;
- gcm128.c: add omitted ARM initialization, remove ctx.ctr;

Submitted By: Ger Hobbelt <ger@hobbelt.com>

Update docs to BIO_f_buffer()

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

Fix bug in bitmask macros and stop warnings.

Submitted By: "PMHager" <hager@dortmund.net>

Initialise pkey callback to 0.

Submitted By: Ger Hobbelt <ger@hobbelt.com>

Don't overwrite return value with strlen(f).

Submitted By: Artemy Lebedev <vagran.ast@gmail.com>

Typo.

Submitted By: Matthias Andree <matthias.andree@gmx.de>

Use correct path to openssl utility in c_rehash script.

Submitted By: Bruce Stephens <bruce.stephens@isode.com>

Make ts/Makefile consistent with other Makefiles.

ghash-x86*.pl: fix performance numbers for Core2, as it turned out
previous ones were "tainted" by variable clock frequency.

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

Fix various DTLS fragment reassembly bugs.

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

Don't drop DTLS connection if mac or decryption failed.