* tls: port CryptoStream to streams2 (Fedor Indutny)

* typed arrays: only share ArrayBuffer backing store (Ben Noordhuis)

* stream: make Writable#end() accept a callback function (Nathan Rajlich)

* buffer: optimize 'hex' handling (Ben Noordhuis)

* dns, cares: don't filter NOTIMP, REFUSED, SERVFAIL (Ben Noordhuis)

* readline: treat bare \r as a line ending (isaacs)

* readline: make \r\n emit one 'line' event (Ben Noordhuis)

* cluster: support datagram sockets (Bert Belder)

* stream: Correct Transform class backpressure (isaacs)

* addon: Pass module object to NODE_MODULE init function (isaacs, Rod Vagg)

* buffer: slow buffer copy compatibility fix (Trevor Norris)

* Add bytesWritten to tls.CryptoStream (Andy Burke)