2013.02.07, Version 0.9.9 (Unstable)

* 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)
Merge branch 'v0.9.9-release'
Now working on v0.9.10
Revert "Move MakeCallback to JS"

This reverts commit 0109a9f90acdfdb287436676f2384f7b072fbb6a.

Also included:  Port all the changes to process._makeCallback into the
C++ version.  Immediate nextTick, etc.

This yields a slight boost in several benchmarks.  V8 is optimizing and
deoptimizing process._makeCallback repeatedly.