add FIPS support to ssl: doesn't do anything on this branch yet as there is no FIPS compilation support

Parse certificate request message and set digests appropriately.

Generate new TLS v1.2 format certificate verify message.

Keep handshake caches around for longer as they are needed for client auth.

Make sure message is long enough for signature algorithms.

(backport from HEAD).

default. If we don't do it this way, it screws up libeay.num.
(update from HEAD, original from levitte).

This includes TLS v1.2 server and client support but at present
client certificate support is not implemented.

all ssl related structures are opaque and internals cannot be directly
accessed. Many applications will need some modification to support this and
most likely some additional functions added to OpenSSL.

The advantage of this option is that any application supporting it will still
be binary compatible if SSL structures change.

(backport from HEAD).

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

Fix DTLS Retransmission Buffer Bug

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

Don't change state when answering DTLS ClientHello.

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

Fix DTLS fragment reassembly bug.

Submitted by Steven M. Schweda <sms@antinode.info>

different options:
"64"		The build system will choose /POINTER_SIZE=64=ARGV if
		the compiler supports it, otherwise /POINTER_SIZE=64.
"64="		The build system will force /POINTER_SIZE=64.
"64=ARGV"	The build system will force /POINTER_SIZE=64=ARGV.

This meant a slight renumbering in util/libeay.num due to symbols
appearing in 1.0.0-stable.  However, since there's been no release on
this branch yet, it should be harmless.

  more need to be added...

  with turning trapping back on.
* test/maketests.com: Do the same check for /POINTER_SIZE=64=ARGV
  here.
* test/clean-test.com: A new script for cleaning up.

  directly in main().  'if needed' also includes when argv is a 32 bit
  pointer in an otherwise 64 bit environment.
* apps/makeapps.com: When using /POINTER_SIZE=64, try to use the additional
  =ARGV, but only if it's supported.  Fortunately, DCL is very helpful
  telling us in this case.

are in the Unix Makefiles, and add SRP tests.