V8: Upgrade to 3.15.11.15

npm: Upgrade to 1.2.12

fs: Change default WriteStream config, increase perf (isaacs)

process: streamlining tick callback logic (Trevor Norris)

stream_wrap, udp_wrap: add read-only fd property (Ben Noordhuis)

buffer: accept negative indices in Buffer#slice() (Ben Noordhuis)

tls: Cycle data when underlying socket drains (isaacs)

stream: read(0) should not always trigger _read(n,cb) (isaacs)

stream: Empty strings/buffers do not signal EOF any longer (isaacs)

crypto: improve cipher/decipher error messages (Ben Noordhuis)

net: Respect the 'readable' flag on sockets (isaacs)

net: don't suppress ECONNRESET (Ben Noordhuis)

typed arrays: copy Buffer in typed array constructor (Ben Noordhuis)

typed arrays: make DataView throw on non-ArrayBuffer (Ben Noordhuis)

windows: MSI installer enhancements (Scott Blomquist, Jim Schubert)

npm: Upgrade to v1.2.11

http: Do not let Agent hand out destroyed sockets (isaacs)

http: Raise hangup error on destroyed socket write (isaacs)

http: protect against response splitting attacks (Bert Belder)

tls: port CryptoStream to streams2 (Fedor Indutny)

typed arrays: only share ArrayBuffer backing store (Ben Noordhuis)

stream: make Writable#end() accept a callback function (Nathan Rajlich)

buffer: optimize 'hex' handling (Ben Noordhuis)

dns, cares: don't filter NOTIMP, REFUSED, SERVFAIL (Ben Noordhuis)

readline: treat bare \r as a line ending (isaacs)

readline: make \r\n emit one 'line' event (Ben Noordhuis)

cluster: support datagram sockets (Bert Belder)

stream: Correct Transform class backpressure (isaacs)

addon: Pass module object to NODE_MODULE init function (isaacs, Rod Vagg)

buffer: slow buffer copy compatibility fix (Trevor Norris)

Add bytesWritten to tls.CryptoStream (Andy Burke)

npm: Upgrade to v1.2.10

zlib: pass object size hint to V8 (Ben Noordhuis)

zlib: reduce memory consumption, release early (Ben Noordhuis)

buffer: slow buffer copy compatibility fix (Trevor Norris)

zlib: don't assert on malformed dictionary (Ben Noordhuis)

zlib: don't assert on missing dictionary (Ben Noordhuis)

windows: better ipv6 support (Bert Belder)

windows: add error mappings related to unsupported protocols (Bert Belder)

windows: map ERROR_DIRECTORY to UV_ENOENT (Bert Belder)