Curl and libcurl 7.21.4

 Public curl releases:         120
 Command line options:         143
 curl_easy_setopt() options:   185
 Public functions in libcurl:  58
 Known libcurl bindings:       39
 Contributors:                 834

This release includes the following changes:

 o CURLINFO_FTP_ENTRY_PATH now supports SFTP
 o introduced new framework for unit-testing
 o IDN: use win32 API if told to
 o ares: ask for both IPv4 and IPv6 addresses
 o HTTP: do Negotiate authentication using SSPI on windows

This release includes the following bugfixes:

 o SMTP: add brackets for MAIL FROM
 o ossl_seed: no more RAND_screen (on Windows)
 o multi: connect fail => use next IP address
 o use the timeout when using multiple IP addresses similar to how
   the easy interface does it
 o cookies: tricked dotcounter fixed
 o pubkey_show: allocate buffer to fit any-size result
 o Curl_nss_connect: avoid PATH_MAX
 o Curl_do: avoid using stale conn pointer
 o tftpd test server: avoid buffer overflow report from glibc
 o nss: avoid CURLE_OUT_OF_MEMORY given a file name without any slash
 o nss: fix a bug in handling of CURLOPT_CAPATH
 o CMake: Use upstream CheckTypeSize module
 o OpenSSL get_cert_chain: support larger data sets
 o SCP/SFTP transfers: acknowledge speedcheck
 o GnuTLS builds: fix memory leak
 o connect problem: use UDP correctly
 o Borland C++ makefile tweaks

This release includes the following known bugs:

 o see docs/KNOWN_BUGS (http://curl.haxx.se/docs/knownbugs.html)

This release would not have looked like this without help, code, reports and
advice from friends like these:

 Brad Hards, Guenter Knauf, Luke Amery, Pasha Kuznetsov, Patrick Monnerat,
 Paul Howarth, Pierre Joye, Tommie Gannert, Yang Tse, Brad King,
 Dan Fandrich, Kamil Dudka, Marcel Roelofs, Quinn Slack

        Thanks! (and sorry if I forgot to mention someone)
