2011.03.26, Version 0.4.4 (stable)

* CryptoStream.end shouldn't throw if not writable GH-820

* Drop out if connection destroyed before connect() GH-819

* expose https.Agent

* Correctly setsid in tty.open GH-815

* Bug fix for failed buffer construction

* Added support for removing .once listeners (GH-806)

* Upgrade V8 to 3.1.8.5
