-* Fixed issues with inheritance and cloning of HttpDeflateStream, HttpInflateStream and HttpMessage
- (Extending classes lose default properties on instantiation; Complex members ignored during cloning)
-* Fixed suppression of nested exceptions in e.g. HttpRequestPool::send()
-* Fixed crash on detaching requests from pool in request event callbacks
++ Added "ipresolve" request option
++ Added HTTP_IPRESOLVE_{ANY|V4|V6}, HttpRequest::IPRESOLVE_{ANY|V4|V6} constants
+* Fixed crash when using non-associative arrays as request headers
+* Fixed crash when serializing incomplete HttpMessage objects