* Upgrade v8 to 3.9.17

* Upgrade npm to 1.1.8
  - Add support for os/cpu fields in package.json (Adam Blackburn)
  - Automatically node-gyp packages containing a binding.gyp
  - Fix failures unpacking in UNC shares
  - Never create un-listable directories
  - Handle cases where an optionalDependency fails to build

* events: newListener emit correct fn when using 'once' (Roly Fentanes)

* url: Ignore empty port component (Łukasz Walukiewicz)

* module: replace 'children' array (isaacs)

* tls: parse multiple values of a key in ssl certificate (Sambasiva Suda)

* cluster: support passing of named pipes (Ben Noordhuis)

* Windows: include syscall in fs errors (Bert Belder)

* http: #2888 Emit end event only once (Igor Zinkovsky)

* readline: add multiline support (Rlidwka)

* process: add `process.hrtime()` (Nathan Rajlich)

* net, http, https: add localAddress option (Dmitry Nizovtsev)

* addon improvements (Nathan Rajlich)

* build improvements (Ben Noordhuis, Sadique Ali, T.C. Hollingsworth, Nathan Rajlich)

* add support for "SEARCH" request methods (Nathan Rajlich)

* expose the zlib and http_parser version in process.versions (Nathan Rajlich)