* Upgrade V8 to 3.6.4

* Improve Windows compatibility

* Documentation improvements

* Debugger and REPL improvements (Fedor Indutny)

* Add legacy API support: net.Stream(fd), process.stdout.writable,
  process.stdout.fd

* Fix mkdir EEXIST handling (isaacs)

* Use net_uv instead of net_legacy for stdio

* Do not load readline from util.inspect

* #1673 Fix bug related to V8 context with accessors (Fedor Indutny)

* #1634 util: Fix inspection for Error (koichik)

* #1645 fs: Add positioned file writing feature to fs.WriteStream (Thomas
  Shinnick)

* #1637 fs: Unguarded fs.watchFile cache statWatchers checking fixed (Thomas
  Shinnick)

* #1695 Forward customFds to ChildProcess.spawn

* #1707 Fix hasOwnProperty security problem in querystring (isaacs)

* #1719 Drain OpenSSL error queue