Notable changes:

* process / promises: An'unhandledRejection' event is now emitted on
  process whenever a Promise is rejected and no error handler is
  attached to the Promise within a turn of the event loop. A
  'rejectionHandled' event is now emitted whenever a Promise was
  rejected and an error handler was attached to it later than after an
  event loop turn. See the process documentation for more detail.
  https://github.com/iojs/io.js/pull/758 (Petka Antonov)
* streams: you can now use regular streams as an underlying socket for
  tls.connect() https://github.com/iojs/io.js/pull/758 (Fedor Indutny)
* http: A new 'abort' event emitted when a http.ClientRequest is
  aborted by the client. https://github.com/iojs/io.js/pull/945
  (Evan Lucas)
* V8: Upgrade V8 to 4.1.0.21. Includes an embargoed fix, details
  should be available at
  https://code.google.com/p/chromium/issues/detail?id=430201
  when embargo is lifted. A breaking ABI change has been held back
  from this upgrade, possibly to be included when io.js merges V8 4.2.
  See https://github.com/iojs/io.js/pull/952 for discussion.
* npm: Upgrade npm to 2.6.0. Includes features to support the new
  registry and to prepare for npm@3. See npm CHANGELOG.md
  https://github.com/npm/npm/blob/master/CHANGELOG.md#v260-2015-02-12
  for details.
* libuv: Upgrade to 1.4.2. See libuv ChangeLog
  https://github.com/libuv/libuv/blob/v1.x/ChangeLog for details of
  fixes.

This commit changes the word introduction to the code block to be
explicitly correct, and changes the `d` variable to `msg` for clarity.

PR-URL: https://github.com/iojs/io.js/pull/964


Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Nicu Micleușanu <micnic90@gmail.com>
Reviewed-By: Vladimir Kurchatkin <vladimir.kurchatkin@gmail.com>

This adds more consistency, plus links to commits are particularly useful.

PR-URL: https://github.com/iojs/io.js/pull/967


Reviewed-By: Rod Vagg <rod@vagg.org>

fixes #958

Fixes: https://github.com/iojs/io.js/issues/958
PR-URL: https://github.com/iojs/io.js/pull/968


Reviewed-By: Shigeki Ohtsu <ohtsu@iij.ad.jp>

PR-URL: https://github.com/iojs/io.js/pull/966


Reviewed-By: Fedor Indutny <fedor@indutny.com>

Fixes a SIGSEGV by making sure `txt_chunk` is not empty before setting
it on `txt_records`

PR-URL: https://github.com/iojs/io.js/pull/960


Reviewed-By: Rod Vagg <rod@vagg.org>

If run with --abort-on-uncaught-exception, V8 will abort the process
whenever it does not see a JS-installed CatchClause in the stack. C++
TryCatch clauses are ignored. Domains work by setting a FatalException
handler which is ignored when running in abort mode.

This patch modifies MakeCallback to call its target function through a
JS function that installs a CatchClause and manually calls _fatalException
on error, if the process is both using domains and is in abort mode.

Semver: patch
PR-URL: https://github.com/iojs/io.js/pull/922
Fixes: https://github.com/iojs/io.js/issues/836


Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

ClientRequest will now emit an abort event the first time abort()
is called.

Semver: Minor
Fixes: https://github.com/joyent/node/issues/9278
PR-URL: https://github.com/iojs/io.js/pull/945


Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>

Move JS methods to the stream_base-inl.h and thus define them on each
use of `StreamBase::AddMethods`. Inline `AddMethods` itself, so that
there won't be any need in a static declaration in stream_base.cc.

NOTE: This basically allows using this API in user-land, though, some
polishing is required before releasing it.

PR-URL: https://github.com/iojs/io.js/pull/957


Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>

Undo the ABI (but not API) change to NamedPropertyHandlerConfiguration.
This avoids a NODE_MODULE_VERSION bump and forcing everyone to recompile
their add-ons, at the cost of increasing the delta with upstream V8.

This commit effectively backs out 4.1.0.16, the release that introduced
the ABI change (and nothing else.)

PR-URL: https://github.com/iojs/io.js/pull/952


Reviewed-By: Fedor Indutny <fedor@indutny.com>
Reviewed-By: Rod Vagg <rod@vagg.org>

Fix: iojs/io.js#461
PR-URL: https://github.com/iojs/io.js/pull/706


Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

PR-URL: https://github.com/iojs/io.js/pull/952


Reviewed-By: Fedor Indutny <fedor@indutny.com>
Reviewed-By: Rod Vagg <rod@vagg.org>

PR-URL: https://github.com/iojs/io.js/pull/940


Reviewed-By: Fedor Indutny <fedor@indutny.com>
Reviewed-By: Rod Vagg <rod@vagg.org>

Documents the new unhandled rejection detection API.

Documents the new unhandledRejection/rejectionHandled events in the process
docuemntation. As agreed on in this issue:

https://github.com/iojs/io.js/issues/256#event-241385784

PR-URL: https://github.com/iojs/io.js/pull/946


Reviewed-By: Domenic Denicola <domenic@domenicdenicola.com>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>

PR-URL: https://github.com/iojs/io.js/pull/950


Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>

Fix parallel/test-stdio-closed introduced in commit b5f25a96 ("src:
ensure that file descriptors 0-2 are valid") to not keep spawning
child processes ad infinitum.

The test spawns itself as a child process but a missing return statement
made the child process spawn itself again, and again, and again.

It went unnoticed for some time because the child process exits almost
immediately afterwards, i.e. it didn't fill up the process table.  The
observable effect was an iojs process that was quietly consuming CPU
cyles in the background with a PID that was constantly changing.

Refs: https://github.com/iojs/io.js/pull/938
PR-URL: https://github.com/iojs/io.js/pull/948


Reviewed-By: Fedor Indutny <fedor@indutny.com>

PR-URL: https://github.com/iojs/io.js/pull/839


Reviewed-By: Brendan Ashworth <brendan.ashworth@me.com>

Implement unhandled rejection tracking for promises as
specified in https://gist.github.com/benjamingr/0237932cee84712951a2

Fixes #256
PR-URL: https://github.com/iojs/io.js/pull/758


Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Domenic Denicola <domenic@domenicdenicola.com>

Benchmarker should pass exec flags (e.g. --no-crankshaft,
--turbofan-filter, --trace-opt etc) to the benchmarking process

Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>
PR-URL: https://github.com/iojs/io.js/pull/928

PR-URL: https://github.com/iojs/io.js/pull/924


Reviewed-By: Brendan Ashworth <brendan.ashworth@me.com>
Reviewed-By: Rod Vagg <rod@vagg.org>

Introduce a way to wrap plain-js `stream.Duplex` streams into C++
StreamBase's child class. With such method at hand it is now possible to
pass `stream.Duplex` instance as a `socket` parameter to
`tls.connect()`.

PR-URL: https://github.com/iojs/io.js/pull/926


Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>

Closes: #810
PR-URL: https://github.com/iojs/io.js/pull/938


Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

This is a minimal effort to support test output written both to
stdout and file in order to get our buildbots understanding
test output.

PR-URL: https://github.com/iojs/io.js/pull/934


Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

Currently, if util.format() is called with a string as its first
argument, and a Symbol as one of the subsequent arguments, an
exception is thrown due to an attempted implicit string conversion.
This commit causes Symbols to be explicitly converted.

Fixes: https://github.com/iojs/io.js/issues/927
PR-URL: https://github.com/iojs/io.js/pull/931


Reviewed-By: Domenic Denicola <domenic@domenicdenicola.com>

Originally disabled in commit 5de334c2 ("deps: make node-gyp work again
on windows") due to the then-website lacking the requisite SHASUMS.txt
or SHASUMS256.txt files.  The website has a SHASUMS256.txt now so start
checksumming the download again.

PR-URL: https://github.com/iojs/io.js/pull/918


Reviewed-By: Rod Vagg <rod@vagg.org>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

Semver: patch
PR-URL: https://github.com/iojs/io.js/pull/825


Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>

reduced to the minimal amount, any less shows a white bar.

Semver: patch
PR-URL: https://github.com/iojs/io.js/pull/860


Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>

This commit changes many test styles to change all references
from require('./common.js'); to require('./common');.

The latter is much more common, with the former only being used in 50
tests. It is just a stylistic change, and it seems that `common.js` was
introduced by a rogue test and copied and pasted into the rest.

Semver: patch
PR-URL: https://github.com/iojs/io.js/pull/917


Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

StreamBase is an improved way to write C++ streams. The class itself is
for separting `StreamWrap` (with the methods like `.writeAsciiString`,
`.writeBuffer`, `.writev`, etc) from the `HandleWrap` class, making
possible to write abstract C++ streams that are not bound to any uv
socket.

The following methods are important part of the abstraction (which
mimics libuv's stream API):

* Events:
  * `OnAlloc(size_t size, uv_buf_t*)`
  * `OnRead(ssize_t nread, const uv_buf_t*, uv_handle_type pending)`
  * `OnAfterWrite(WriteWrap*)`
* Wrappers:
  * `DoShutdown(ShutdownWrap*)`
  * `DoTryWrite(uv_buf_t** bufs, size_t* count)`
  * `DoWrite(WriteWrap*, uv_buf_t*, size_t count, uv_stream_t* handle)`
  * `Error()`
  * `ClearError()`

The implementation should provide all of these methods, thus providing
the access to the underlying resource (be it uv handle, TLS socket, or
anything else).

A C++ stream may consume the input of another stream by replacing the
event callbacks and proxying the writes. This kind of API is actually
used now for the TLSWrap implementation, making it possible to wrap TLS
stream into another TLS stream. Thus legacy API calls are no longer
required in `_tls_wrap.js`.

PR-URL: https://github.com/iojs/io.js/pull/840


Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>

* Fetch from the correct url.
* Link compiled addons with iojs.lib instead of node.lib.
* Disable checksum checks for iojs.lib until our website supports
  them.

PR: https://github.com/iojs/io.js/pull/422


Reviewed-by: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-by: Rod Vagg <rod@vagg.org>

Apply a small patch that makes node-gyp fetch the tarballs from
https://iojs.org/ instead of http://nodejs.org/

A patch better suited for inclusion upstream will be put together
shortly.

PR-URL: https://github.com/iojs/io.js/pull/343


Reviewed-By: Rod Vagg <rod@vagg.org>

PR-URL: https://github.com/iojs/io.js/pull/904


Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

PR-URL: https://github.com/iojs/io.js/pull/916


Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

This commit adds proper type checking to makeCallback(). Anything
other than undefined or a function will throw.

PR-URL: https://github.com/iojs/io.js/pull/866


Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Vladimir Kurchatkin <vladimir.kurchatkin@gmail.com>

Currently, fs.truncate() silently fails when a file descriptor
is passed as the first argument. This commit changes this
behavior to properly call fs.ftruncate().

PR-URL: https://github.com/joyent/node/pull/9161


Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Timothy J Fontaine <tjfontaine@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

Conflicts:
	lib/fs.js

PR-URL: https://github.com/iojs/io.js/pull/913


Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

Currently, the unref() method does not remember any state
if called before the server's handle has been created. This
commit adds state to track calls to ref() and unref().

PR-URL: https://github.com/iojs/io.js/pull/897


Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Brendan Ashworth <brendan.ashworth@me.com>

node::Environment isn't accessible to user APIs, so extend smalloc to
also accept v8::Isolate.

Fixes: 75adde07 "src: remove `node_isolate` from source"
PR-URL: https://github.com/iojs/io.js/pull/905


Reviewed-by: Fedor Indutny <fedor@indutny.com>

The CHANGELOG referenced PR 847, but should really be 846.

PR-URL: https://github.com/iojs/io.js/pull/903


Reviewed-By: Christian Tellnes <christian@tellnes.no>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

PR-URL: https://github.com/iojs/io.js/pull/902


Reviewed-By: Roman Reiss <me@silverwind.io>