Tidy up CRYPTO_EX_DATA structures.

minor changes.

Docs haven't been added at this stage. They are probably
best included in the 'ciphers' program docs.

non-function pointers to function pointers and vice versa.
The current solution is to have unions that describe the
conversion we want to do, and gives us the ability to extract
the type of data we want.

The current solution is a quick fix, and can probably be made
in a more general or elegant way.

Remove references to 'TXT' in -inform and -outform switches.

Add short state string for MS SGC.

either and has a static and dynamic mix.

SSL_CTX and SSL, functions to set them and defaults if no values set.

yet.

Add a function X509_STORE_CTX_purpose_inherit() which implements the logic
of "inheriting" purpose and trust from a parent structure and using a default:
this will be used in the SSL code and possibly future S/MIME.

Partial documentation of the 'verify' utility. Still need to document how all
the extension checking works and the various error messages.

(because now SSL_new makes a copy).

and to lots of PEM_... functions.
Submitted by: Damien Miller <dmiller@ilogic.com.au>

SSL_MODE_ENABLE_PARTIAL_WRITE, SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER.

Pointed out by: Janez Jere <jj@void.si>

a pain to read when using 4-space tabs.

unsigned/signed cmp error in asn1parse. Change various pem_all.c args to
use pem_password_cb.

those functions without having a parameter list declaration.
(There are various similar cases left ...)

Submitted by: Richard Levitte <richard@levitte.org>

Also I've subsituted real tabs for 8-spaces sequences in some lines so that
things don't look that weird with a tab-width of 4.

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that SSL_set_{accept,connect}_state be called before
SSL_{accept,connect} may be used.
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called sess_cert instead of just cert.  This is in preparation of further
changes: Probably often when s->session->sess_cert is used, we should
use s->cert instead; s->session->sess_cert should be a new structure
containing only the stuff that is for just one connection (e.g.
the peer's certificate, which the SSL client implementations currently
store in s->session->[sess_]cert, which is a very confusing thing to do).
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pointers.  The cert_st handling is changed by this in various ways.
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callbacks.

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