release-notes: sync up with recent commits

This release includes the following changes:

 o 

 o maketgz: produce CHANGES automatically

This release includes the following bugfixes:

 o 

 o configure: spell --disable-threaded-resolver correctly

 o multi: call the progress callback in all states

 o multi: unmark handle as used when no longer head of pipeline

 o sendrecv: treat all negative values from send/recv as errors

 o ftp-wildcard: avoid tight loop when used without any pattern

 o multi_socket: re-use of same socket without notifying app

 o ftp wildcard: FTP LIST parser FIX

This release includes the following known bugs:

This release would not have looked like this without help, code, reports and

advice from friends like these:

 Rainer Canavan, Paul Howarth, Jerome Vouillon, Ruslan Gazizov, Yang Tse,

 Kamil Dudka, Alex Bligh, Ben Greear, Hoi-Ho Chan, Howard Chu, Dirk Manske,

 Pavel Raiskup, John-Mark Bell, Eric Mertens, Tor Arntsen, Douglas Kilpatrick,

 Igor Novoseltsev, Jason McDonald, Dan Fandrich, Tanguy Fautre, Guenter Knauf,

 Julien Chaffraix, Kalle Vahlman, Frank Meier, Constantine Sapuntzakis

 Dan Fandrich, Kamil Dudka, Krister Johansen, Pavel Raiskup,

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