2011.09.15, Version 0.4.12 (stable)

* Improve docs

* #1563 overflow in ChildProcess custom_fd.

* #1569, parse error on multi-line HTTP headers. (Ben Noordhuis)

* #1586 net: Socket write encoding case sensitivity (koichik)

* #1610 Remove DigiNotar CA from trusted list (isaacs)

* #1624 buffer: Avoid overrun with 'binary' encoding. (koichik)

* #1633 buffer: write() should always set _charsWritten. (koichik)

* #1707 hasOwnProperty usage security hole in querystring (isaacs)

* #1719 Drain OpenSSL error queue

* Fix error reporting in net.Server.listen
