* Added env to child_process.exec (Сергей Крыжановский)

* Allow modules to optionally be loaded in separate contexts
  with env var NODE_MODULE_CONTEXTS=1.

* setTTL and setBroadcast for dgram (Matt Ranney)

* Use execPath for default NODE_PATH, not installPrefix
  (Isaac Schlueter)

* Support of console.dir + console.assert (Jerome Etienne)

* on() as alias to addListener()

* Use javascript port of Ronn to build docs (Jérémy Lal)

* Upgrade V8 to 2.3.0