2010.04.15, Version 0.1.91

  * Add incoming.httpVersion

  * Object.prototype problem with C-Ares binding

  * REPL can be run from multiple different streams. (Matt Ranney)

  * After V8 heap is compact, don't use a timer every 2 seconds.

  * Improve nextTick implementation.

  * Add primative support for Upgrading HTTP connections.
    (See commit log for docs 760bba5)

  * Add timeout and maxBuffer options to child_process.exec

  * Fix bugs.

  * Upgrade V8 to 2.2.3.1
