2011.10.21, Version 0.5.10 (unstable)

* Remove cmake build system, support for Cygwin, legacy code base,
	process.ENV, process.ARGV, process.memoryUsage().vsize, os.openOSHandle

* Documentation improvments (Igor Zinkovsky, Bert Belder, Ilya Dmitrichenko,
koichik, Maciej Małecki, Guglielmo Ferri, isaacs)

* Performance improvements (Daniel Ennis, Bert Belder, Ben Noordhuis)

* Long process.title support (Ben Noordhuis)

* net: register net.Server callback only once (Simen Brekken)

* net: fix connect queue bugs (Ben Noordhuis)

* debugger: fix backtrace err handling (Fedor Indutny)

* Use getaddrinfo instead of c-ares for dns.lookup

* Emit 'end' from crypto streams on close

* repl: print out `undefined` (Nathan Rajlich)

* #1902 buffer: use NO_NULL_TERMINATION flag (koichik)

* #1907 http: Added support for HTTP PATCH verb (Thomas Parslow)

* #1644 add GetCPUInfo on windows (Karl Skomski)

* #1484, #1834, #1482, #771 Don't use a separate context for the repl.
  (isaacs)

* #1882 zlib Update 'availOutBefore' value, and test (isaacs)

* #1888 child_process.fork: don't modify args (koichik)

* #1516 tls: requestCert unusable with Firefox and Chrome (koichik)

* #1467 tls: The TLS API is inconsistent with the TCP API (koichik)

* #1894 net: fix error handling in listen() (koichik)

* #1860 console.error now goes through uv_tty_t

* Upgrade V8 to 3.7.0

* Upgrade GYP to r1081