Proxy-Connection: header when using a proxy and not doing CONNECT.

in fact provided by yassl instead

bugfixes

to get a better overview

(serialise) a previously built formpost (as with curl_formadd()).

library, so that the same application code can use mutex-locking
independently of OpenSSL or GnutTLS being used.

curl_socket_t is unsigned (like Windows) that could cause it to wrongly
return a max fd of -1.

CURLOPT_MAX_RECV_SPEED_LARGE that limit tha maximum rate libcurl is allowed
to send or receive data. This kind of adds the the command line tool's
option --limit-rate to the library.

The rate limiting logic in the curl app is now removed and is instead
provided by libcurl itself. Transfer rate limiting will now also work for -d
and -F, which it didn't before.

ares_dns.h, which break c-ares on my Sparc64. Bit-wise operations in C
operate on logical values. And in any event the octets are already in
big-endian (aka network) byte order so they're being reversed (thus the
source of the breakage).

UDP even when a poll(2) or select(2) suggest otherwise.

of how to write such a file