-* Added request options:
- - proxytunnel: enable tunelling through the HTTP proxy
- - noproxy: comma separatet list of hosts (* means all hosts) not to use a proxy for (libcurl >= 7.19.4)
-* Added postredir request options constants:
- - HTTP_POSTREDIR_301
- - HTTP_POSTREDIR_302
- - HTTP_POSTREDIR_ALL
-* Added authtype request option constant:
- - HTTP_AUTH_DIGEST_IE
-* Added proxytype request option constants:
- - HTTP_PROXY_HTTP_1_0
-* Added request info members:
- - condition_unmet (libcurl >= 7.19.4)
-* Fixed bug #17087 http_build_cookie() exhausts memory if cookie value is NULL