Notified by Paul Siegel <psiegel@corestreet.com>

Retain compatibility of EVP_DigestInit() and EVP_DigestFinal()
with existing code.

Modify library to use digest *_ex() functions.

Enhance OCSP_request_verify() so it finds the signers certificate
properly and supports several flags.

or serial number.

sure they are available in opensslconf.h, by giving them names starting
with "OPENSSL_" to avoid conflicts with other packages and by making
sure e_os2.h will cover all platform-specific cases together with
opensslconf.h.

I've checked fairly well that nothing breaks with this (apart from
external software that will adapt if they have used something like
NO_KRB5), but I can't guarantee it completely, so a review of this
change would be a good thing.

Doesn't handle SSL URLs yet.

Various OCSP responder utility functions.

Delete obsolete OCSP functions.

Largely untested at present...

Initial OCSP certificate verify. Not complete,
it just supports a "trusted OCSP global root CA".

Add set of OCSP client functions. All experimental
and subject to addition, modifcation or deletion.

Add two OCSP nonce utility functions.

Fix typo in status code name.

application needs.

Add OCSP library name to error code.

Remove extensions argument from various functions
because it is not needed with the new extension
code.

New function OCSP_cert_to_id() to convert a pair
of certificates into an OCSP_CERTID.

New simple OCSP HTTP function. This is rather primitive
but just about adequate to send OCSP requests and
parse the response.

Fix typo in CRL distribution points extension.

Fix ASN1 code so it adds a final null to constructed
strings.

Redo OCSP response printing. Remove duplicate or
obsolete code. Delete some redundant files.

from the print routines.

Reorganisation of OCSP code: initial print routines in ocsp_prn.c. Doesn't
work fully because OCSP extensions aren't reimplemented yet.

Implement some ASN1 functions needed to compile OCSP code.