support for the OS/400 Secure Sockets Layer library

some few internal identifiers to avoid conflicts, which could be useful on
other platforms.

(http://curl.haxx.se/bug/view.cgi?id=1757328) and submitted a patch. It turns
out we broke login to FTP servers that don't require (nor understand) PASS
after the USER command

issue is in libssh2 and not freeing a dynamic error message during cleanup.

a control connection that was deemed "dead" to yet be re-used in a following
request. We must make sure the connection gets closed on this situation.

added hint to compile with SSPI with MSVC6 without PSDK.

(http://curl.haxx.se/bug/view.cgi?id=1750274) and submitted a patch for the
case where libcurl did a connect attempt to a non-listening port and didn't
provide a human readable error string back.

define the symbols for backwards source compatibility)

could in fact get stuck in an endless loop.

fail to connect if there is no Common Name field found in the remote cert.
We should deprecate the support for this set to 1 anyway soon, since the
feature is pointless and most likely never really used by anyone.

added call to netware_init() in curl_global_init() to make sure it gets called before any library functions get used.

The tiny patch below fixes a bug (that I introduced :) which happens
when negotiating authentication with a proxy (probably with web
servers as well) that uses chunked transfer encoding for the 407 error
pages. In this case the ''ignorebody'' flag was ignored (no pun
intended).

to a proxy during CONNECT auth negotiation.

* Move scp:// into a state machine so it won't block in multi mode
* When available use the full directory entry from the sftp:// server

moved autounload flag so that its used for both lib architectures.

message for an scp:// upload failure.  If libssh2 has his matching
patch, then the error message return by the server will be used instead
of a more generic error.

libcurl. This also makes the options change name to --krb (from --krb4) and
CURLOPT_KRBLEVEL (from CURLOPT_KRB4LEVEL) but the old names are still

some more minor Makefile tidyups.