make sure that a previously used one is killed first (since they re-use the
same .pid file etc)

now runs fine.

but that worked nicely in 7.15.5. I converted it into test case 532 and
fixed the problem.

would crash if a bad function sequence was used when shutting down after
using the multi interface (i.e using easy_cleanup after multi_cleanup) so
precautions have been added to make sure it doesn't any more - test case 529
was added to verify.

jar has died and we now instead point out our own version of that

(http://curl.haxx.se/bug/view.cgi?id=1561470) that is said to crash when an
FTP upload fails with the multi interface. It did not, but I made a failed
upload still assume the control connection to be fine.

empty password or no password at all. Test case 278 and 279 were added to
verify.

all Win32 targets except CygWin. Cleanup.

FTP 3rd party transfers to that file for now until I have them sorted out.

  handle that is part of a multi handle first removes the handle from the
  stack.

- Added CURLOPT_SSL_SESSIONID_CACHE and --no-sessionid to disable SSL
  session-ID re-use on demand since there obviously are broken servers out
  there that misbehave with session-IDs used.

Winsock.

cache within the multi handle.

server as part of test cases

command on subsequent requests on a re-used connection unless it has to.

send the whole request at once, even though the Expect: header was disabled
by the application. An effect of this change is also that small (< 1024
bytes) POSTs are now always sent without Expect: header since we deem it
more costly to bother about that than the risk that we send the data in
vain.

-Log errno in message if setsockopt() fails.

-Close listener socket on major errors.

tests/libtest/lib506.c version 1.11 is now also logging CURLSHOPT_LOCKFUNC, CURLSHOPT_UNLOCKFUNC and CURLSHOPT_USERDATA, so we now also have to check them here.