* punycode: update to v1.1.1 (Mathias Bynens)

* c-ares: upgrade to 1.9.0 (Saúl Ibarra Corretgé)

* dns: ignore rogue DNS servers reported by windows (Saúl Ibarra Corretgé)

* unix: speed up uv_async_send() (Ben Noordhuis)

* darwin: get cpu model correctly on mac (Xidorn Quan)

* nextTick: Handle tick callbacks before any other I/O (isaacs)

* Enable color customization of `util.inspect` (Pavel Lang)

* tls: Speed and memory improvements (Fedor Indutny)

* readline: Use one history item for reentered line (Vladimir Beloborodov)

* Fix #3521 Make process.env more like a regular Object (isaacs)