delete references to ERR pages from SEE ALSO where such
references were already given below RETURN VALUES right above

In rsa.h rev. 1.40, gilles@ provided several new RSA_METHOD accessors.
Update the documentation.
OK tb@ jmc@

found a complete archive of SSLeay-0.4 to SSLeay-0.8.1b tarballs
on the web, so fix up SSLeay HISTORY accordingly

crypto HISTORY up to 0.9.8; researched from OpenSSL git

rsa.h HISTORY up to SSLeay 0.9.0; researched from OpenSSL git

rsa.h HISTORY up to SSLeay 0.8.1b; researched from OpenSSL git

Merge documentation for {DH,DSA}_get0_{key,pqg}(3),
EVP_PKEY_get0_{DH,DSA,RSA}(3), and RSA_{g,s}et0_key(3)
that tb@ just provided.

complete description of RETURN VALUES;
from Alexander Koeppe via OpenSSL commit bb6c5e7f

fix typo, from OpenSSL

commit 0b742f93ea7882a447f6523ac56a6f847d9f8e92
Author: Finn Hakansson <finn_hakansson@yahoo.com>
Date: Thu Dec 15 12:58:19 2016 -0500

Change all references to rsa(3) to point to RSA_new(3) instead.
Make sure all RSA pages point back to RSA_new(3).

Copyright and license

first pass; ok schwarze

convert RSA manuals from pod to mdoc