The internal Curl_done() function uses Curl_expire() at times and that
uses the timeout list. Better clean up the list once we're done using
it. This caused a segfault.

Reported-by: 蔡文凱
Bug: https://curl.haxx.se/mail/lib-2016-02/0097.html

DSA is no longer supported by OpenSSH 7.0, which causes all SCP/SFTP
test cases to be skipped.  Using RSA for host authentication works with
both old and new versions of OpenSSH.

Reported-by: Karlson2k

Closes #676

- Add tests.

- Add an example to CURLOPT_TFTP_NO_OPTIONS.3.

- Add --tftp-no-options to expose CURLOPT_TFTP_NO_OPTIONS.

Bug: https://github.com/curl/curl/issues/481

Some TFTP server implementations ignore the "TFTP Option extension"
(RFC 1782-1784, 2347-2349), or implement it in a flawed way, causing
problems with libcurl. Another switch for curl_easy_setopt
"CURLOPT_TFTP_NO_OPTIONS" is introduced which prevents libcurl from
sending TFTP option requests to a server, avoiding many problems caused
by faulty implementations.

Bug: https://github.com/curl/curl/issues/481

Closes #672

Sync with lib/Makefile.m32 which already uses those variables.

Bug: https://github.com/curl/curl/pull/670

If any parameter in a HTTP DIGEST challenge message is present multiple
times, memory allocated for all but the last entry should be freed.

Bug: https://github.com/curl/curl/pull/667

Reported-by:  <neex@users.noreply.github.com>

Bug: https://github.com/curl/curl/issues/666


Reported-by:  <baumanj@users.noreply.github.com>

Bug: https://github.com/curl/curl/issues/666


Reported-by:  <baumanj@users.noreply.github.com>

First version, try this out!

To hide github specific files somewhat from the rest.

Reported-By: Gisle Vanem

At one point during the development of HTTP/2, the commit 133cdd29
introduced automatic decompression of Content-Encoding as that was what
the spec said then. Now however, HTTP/2 should work the same way as
HTTP/1 in this regard.

Reported-by: Kazuho Oku

Closes #661

nghttp2 callback deals with TLS layer and therefore the header does not
need to be broken into chunks.

Bug: https://github.com/curl/curl/issues/659
Reported-by: Kazuho Oku

by using API instead of accessing an internal structure.
This is required starting OpenSSL 1.1.0-pre3.

Closes #650

Change the example in the docs for CURLOPT_CONNECTTIMEOUT_MS to use
CURLOPT_CONNECTTIMEOUT_MS instead of CURLOPT_CONNECTTIMEOUT.

Closes #653

libssh2_scp_recv2 is introduced in libssh2 1.7.0 - to be released "any
day now.

Closes #451

Bug: https://github.com/curl/curl/pull/651

Remove NOTES section, it's no longer needed since we aren't setting the
errorlevel and more importantly the recently updated URL in the comments
is causing some unusual behavior that breaks the script.

Closes https://github.com/curl/curl/issues/649

The behavior has been clarified in CURLOPT_FTP_USE_{EPRT,EPSV}.3 man
pages since curl-7_12_3~131.  This patch makes it clear in the curl.1
man page, too.

Bug: https://bugzilla.redhat.com/1305970

As the winbuild/* stuff uses it!

On 32bit systems, make sure we don't overflow and return funky values
for very large time differences.

Reported-by: Anders Bakken

Closes #646

All plain C examples now (mostly) adhere to the curl code style. While
they are only examples, they had diverted so much and contained all
sorts of different mixed code styles by now. Having them use a unified
style helps users and readability. Also, as they get copy-and-pasted
widely by users, making sure they're clean and nice is a good idea.

573 checksrc warnings were addressed.