doc: dgram: reword dgram.Socket#send() docs

Make it clear that the address argument is not really optional and fix
some Engrish and long lines while we're here.

Fixes #6433.
src: Remove unused refs to node_object_wrap.h

Turns out that we don't use node_object_wrap.h any more in core,
and, with v8 3.21, it's breaking our Windows build. Removing refs
to it everywhere (and adding node.h in one case where it was the
only way node.h was being included), we have restored the Windows
build.
win: fix ObjectWrap for latest v8

We need to keep ObjectWrap around for module authors (we think), but
v8 3.21 broke node_object_wrap.h with respect to MSVC. Coincidentally,
we no longer use ObjectWrap at all in core, and native modules might
as well use their own entirely internal implementation if they need it.
doc: Update documentation to reflect ObjectWrap changes
node: don't share state with in_tick/last_threw

There was no need to share state between C++ and JS for these two
values. So they have been moved to their respective locations. This will
help performance only a tiny bit, but it does help code complexity much
more.
src: use function to get internal pointer

Remove the NODE_{WRAP,UNWRAP} macros and instead use template functions.
src: don't use WeakObject::Unwrap

Switch out to use UnwrapObject from util.h.
src: don't use class specific Unwrap methods

Instead use the template functions in util.h.
src: shorten Object{Wrap,Unwrap}

Going back to the original names of Wrap/Unwrap now that most all the
class members that duplicate the name and functionality have been
removed.
uv: Upgrade to v0.11.14
fs_event_wrap: update to new libuv api
2013.10.30, Version 0.11.8 (Unstable)

* uv: Upgrade to v0.11.14

* v8: upgrade 3.21.18.3

* assert: indicate if exception message is generated (Glen Mailer)

* buffer: add buf.toArrayBuffer() API (Trevor Norris)

* cluster: fix premature 'disconnect' event (Ben Noordhuis)

* crypto: add SPKAC support (Jason Gerfen)

* debugger: count space for line numbers correctly (Alex Kocharin)

* debugger: make busy loops SIGUSR1-interruptible (Ben Noordhuis)

* debugger: repeat last command (Alex Kocharin)

* debugger: show current line, fix for #6150 (Alex Kocharin)

* dgram: send() can accept strings (Trevor Norris)

* dns: rename domain to hostname (Ben Noordhuis)

* dns: set hostname property on error object (Ben Noordhuis)

* dtrace, mdb_v8: support more string, frame types (Dave Pacheco)

* http: add statusMessage (Patrik Stutz)

* http: expose supported methods (Ben Noordhuis)

* http: provide backpressure for pipeline flood (isaacs)

* process: Add exitCode property (isaacs)

* tls: socket.renegotiate(options, callback) (Fedor Indutny)

* util: format as Error if instanceof Error (Rod Vagg)
Merge branch 'v0.11.8-release'
Now working on 0.11.9
fs: add recursive subdirectory support to fs.watch

Currently fs.watch does not have an option to specify if a directory
should be recursively watched for events across all subdirectories.

Several file watcher APIs support this. FSEvents on OS X > 10.5 is
one example. libuv has added support for FSEvents, but fs.watch had
no way to specify that a recursive watch was required.

fs.watch now has an additional boolean option 'recursive'. When set
to true, and when supported, fs.watch will return notifications for
the entire directory tree hierarchy rooted at the specified path.
tls: reuse hostname from underlying net.Socket

When `tls.connect()` is called with `socket` option, it should try to
reuse hostname previously passed to `net.connect()` and only after that
fall back to `'localhost'`.

fix #6409
tls: do not default to 'localhost' servername
build: use zero overhead systemtap probes

Profiling suggested that on Linux sometimes over 10% of CPU time was
being spent inside the systemtap probe entry points in the binding
layer, even when the process was not actively being traced with the
`stap` tool.

That's why this commit makes it possible to use the *_ENABLED() macros
and bail out early when we're not being traced, reducing the overhead
of unused probes to (almost) zero.

Said macros were already being generated by `dtrace -h` but were not
usable because they rely on external definitions.  To remedy that, we
now generate the accompanying object files with `dtrace -G`.

This commit includes a change to libuv that has been landed upstream in
commit joyent/libuv@3c172ea.
test: fix tls-client-reject after ba7c9ce96
node: add AsyncListener support

AsyncListener is a JS API that works in tandem with the AsyncWrap class
to allow the user to be alerted to key events in the life cycle of an
asynchronous event. The AsyncWrap class has its own MakeCallback
implementation that core will be migrated to use, and uses state sharing
techniques to allow quicker communication between JS and C++ whether the
async event callbacks need to be called.