* v8: Upgrade to 3.22.24.19

* http_parser: Upgrade to 2.2.1

* openssl: Upgrade to 1.0.1f

* uv: Upgrade to 0.11.18

* async-listener: revamp of subsystem (Trevor Norris)

* node: do not ever close stdio (Fedor Indutny)

* http: use writev on chunked encoding (Trevor Norris)

* async_wrap/timers: remove Add/RemoveAsyncListener (Trevor Norris)

* child_process: better error reporting for exec (Fedor Indutny)

* crypto: add newline to cert and key if not present (Fedor Indutny)

* crypto: clear error in GetPeerCertificate (Fedor Indutny)

* crypto: honor default ciphers in client mode (Jacob Hoffman-Andrews)

* crypto: introduce .setEngine(engine, [flags]) (Fedor Indutny)

* crypto: support custom pbkdf2 digest methods (Ben Noordhuis)

* domain: fix off-by-one in Domain.exit() (Ryan Graham)

* http: concatenate duplicate headers by default (Alex Kocharin)

* http: do not emit EOF non-readable socket (Fedor Indutny)

* node: fix argument parsing with -p arg (Alexis Campailla)

* path: improve POSIX path.join() performance (Jo Liss)

* tls: emit `clientError` on early socket close (Fedor Indutny)

* tls: introduce `.setMaxSendFragment(size)` (Fedor Indutny)

* tls: make cert/pfx optional in tls.createServer() (Ben Noordhuis)

* tls: process accumulated input (Fedor Indutny)

* tls: show human-readable error messages (Ben Noordhuis)

* util: handle escaped forward slashes correctly (Tom Gallacher)