ServerKeyExchange message may be skipped.

Submitted by:  Petr Lampa <lampa@fee.vutbr.cz>

sourcecode (including fgrep)

It did not work, it was deactivated by #if 0/#endif anyway _and_ we now have
the working SSL_OP_CIPHER_SERVER_PREFERENCE.

the norm for 'gcc -M' but not for 'makedepend', and is merely
introduced here to avoid commit wars.

(Latin for "comments", anyone?)

and rename some local variables to avoid name shadowing.

His comments are:

First, it corrects a problem introduced in the last patch where the
kssl_map_enc() would intentionally return NULL for valid ENCTYPE
values.  This was done to prevent verification of the kerberos 5
authenticator from being performed when Derived Key ciphers were
in use.  Unfortunately, the authenticator verification routine was
not the only place that function was used.  And it caused core dumps.

Second, it attempt to add to SSL_SESSION the Kerberos 5 Client
Principal Name.

DES's keyschedules.

I know these two should be separate, and I'll back out the DES changes if they
are deemed to be an error.

Note that there is a memory leak lurking in SSL somewhere in this version.

HP-UX in common in ./config). Note that for the moment of this writing
none of 64-bit platforms pass bntest. I'm committing this anyway as it's
too frustrating to patch snapshots over and over while 0.9.6 is known to
work.