真给力！我0.4.0版本的环境刚弄好
主要是一些bug fix工作，ChangeLog如下：
2011.02.19, Version 0.4.1 (stable)
* Fixed field merging with progressive fields on writeHead()
(TJ Holowaychuk)
* Make the repl respect node_modules folders (isaacs)
* Fix for DNS fail in HTTP request (Richard Rodger)
* Default to port 80 for http.request and http.get.
* Improve V8 support for Cygwin (Bert Belder)
* Fix fs.open param parsing. (Felix Geisendörfer)
* Fixed null signal.
* Fix various HTTP and HTTPS bugs
* cmake improvements (Tom Hughes)
* Fix: TLS sockets should not be writable after 'end'
* Fix os.cpus() on cygwin (Brian White)
* MinGW: OpenSSL support (Bert Belder)
* Upgrade V8 to 3.1.5, libev to 4.4.