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

BIO_eof() was always returning true when using a BIO pair. It should only
be true if the peer BIO is empty and has been shutdown.

RT#1215
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Reviewed-by: NKurt Roeckx <kurt@openssl.org>
Reviewed-by: NRich Salz <rsalz@openssl.org>

BIO_new, etc., don't need a non-const BIO_METHOD. This allows all the
built-in method tables to live in .rodata.
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Make all mention of digest algorithm use "any supported algorithm"

RT2071, some new manpages from Victor B. Wagner <vitus@cryptocom.ru>:
    X509_LOOKUP_hash_dir.pod
    X509_check_ca.pod
    X509_check_issued.pod

RT 1600:
    Remove references to non-existant objects(3)
    Add RETURN VALUES to BIO_do_accept page.

RT1818:
    RSA_sign Can return values other than 0 on failure.

RT3634:
    Fix AES CBC aliases (Steffen Nurpmeso <sdaoden@yandex.com>)

RT3678:
    Some clarifications to BIO_new_pair
    (Devchandra L Meetei <dlmeetei@gmail.com>)

RT3787:
    Fix some EVP_ function return values
    (Laetitia Baudoin <lbaudoin@google.com>)
Reviewed-by: NTim Hudson <tjh@openssl.org>

L<foo|foo> is sub-optimal  If the xref is the same as the title,
which is what we do, then you only need L<foo>.  This fixes all
1457 occurrences in 349 files.  Approximately.  (And pod used to
need both.)
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Signed-off-by: NRich Salz <rsalz@akamai.com>
Reviewed-by: NTim Hudson <tjh@openssl.org>

docs-on-web.

reason cause wml to bomb out with the error
message:

** Slice:Error: Some slices were not closed:
** WML:Break: Error in Pass 9 (rc=1).
** WMK:Error: Error in WML (rc=256)

As a workaround delete them for now.

BIO_s_bio.pod.  The most logical is to move everything needed from
BIO_new_bio_pair.pod to BIO_s_bio.pod (including the nice example)
and toss BIO_new_bio_pair.pod.  I hope I got all the info over properly.
PR: 370

(it's similar to the shutdown(..., SHUT_WR) system call
for sockets).

Update docs.

which is redundant.  They are now in their own document.

Also, in the name section, all the functions described shoud be
enumerated.  This will also make it much simpler to generate softlinks
name like each function to man-pages containing the info.

This combines several manual pages provided by
Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>,
various comments by Bodo to the lists and a bit
of source examination by me.