+ Added HttpDeflateStream and HttpInflateStream classes
+ Added ob_deflatehandler and ob_inflatehandler
+ Added HttpRequest::getRawRequestMessage and ::getRawResponseMessage
-+ Added 'resetcookies' request option (libcurl > 7.15)
++ Added 'resetcookies' request option (libcurl > 7.14.1)
- Changed all methods and properties with "URI" in their name to "URL"
- Changed HttpRequest properties to be private