Reviewed-by: NRichard Levitte <levitte@openssl.org>

Because we're requiring Perl 5.10.0 and the 'parent' didn't appear
before Perl 5.10.1, we need to resort to the older parent module
declaration style, modifying @ISA.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

- select an actual file handle for devnull
- do not declare $msgdata twice
- SKE records sometimes seem to come without sig
- in SKE parsing, use and use $pub_key_len when parsing $pub_key
Reviewed-by: NMatt Caswell <matt@openssl.org>

Add ServerHello parsing to TLSProxy.
Also add some (very) limited ServerKeyExchange parsing.
Add the capability to set client and server cipher lists
Fix a bug with fragment lengths
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Two tests are added: one is a simple version tolerance test; the second is
a test to ensure that OpenSSL operates correctly in the case of a zero
length extensions block. The latter was broken inadvertently (now fixed)
and it would have been helpful to have a test case for it.
Reviewed-by: NRichard Levitte <levitte@openssl.org>