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.
blog: Post for v0.11.8
doc: document node signal handling

Partly lifted from uv.h, partly from observation of node.cc.
doc: Correct and add several items

Several names/urls were out of date, and some really
awesome stuff was missing.
doc: encoding is ignored if input is a Buffer

NOTE: it wasn't in 0.8

fixes #6386
src: remove container_of, use CONTAINER_OF

CONTAINER_OF was introduced a while ago but was not used consistently
everywhere yet.  This commit fixes that.

Why CONTAINER_OF instead of container_of?  The former makes it crystal
clear that it's a macro, not a function.
build: make v8 use random seed for hash tables

Upstream V8 as of commit v8/v8@4bc70e8 uses a fixed seed of 314159265
for hash tables unless instructed otherwise.  Tell V8 to keep using a
random seed.
npm: Upgrade to 1.3.14
Merge remote-tracking branch 'ry/v0.10'
tls: prevent stalls by using read(0)

Do not `.push()` the same data as just passed to `.ondata()`, it
may be read by 'data' event listeners.

fix #6277
v8: unbreak `make native` build

The security fix from commit 6b92a713 also back-ported the test case.
Said test case relies on API that is only available in newer versions
of V8 and, as a result, broke the `make native` and `make <arch.mode>`
builds.  This commit reverts that part of the back-port.  Fixes the
following build error:

  ../test/cctest/test-api.cc: In function ‘void TestRegress260106()’:
  ../test/cctest/test-api.cc:17712:34: error: ‘class v8::Context’ has
  no member named ‘GetIsolate’
tools: bundle mk-ca-bundle.pl from upstream curl
tools: customize mk-ca-bundle.pl

Remove unneeded functionality and tweak the generated output so we
can #include it in C++ source code.
tools: check in certdata.txt from mozilla NSS

This is a file from the NSS project containing root certificate data.
It can be downloaded from:

  https://mxr.mozilla.org/mozilla/source/security/nss/lib/ckfw/builtins/certdata.txt?raw=1

Once downloaded, running `perl tools/mk-ca-bundle.pl` will update
src/node_root_certs.h.  Commit, rebuild and go.
crypto: update root certificates

Update the list of root certificates in src/node_root_certs.h with
tools/mk-ca-bundle.pl and update src/node_crypto.cc to make use of
the new format.

Fixes #6013.
gyp: update to bebdcea
v8: upgrade to 3.22.24

This commit removes the simple/test-event-emitter-memory-leak test for
being unreliable with the new garbage collector: the memory pressure
exerted by the test case is too low for the garbage collector to kick
in.  It can be made to work again by limiting the heap size with the
--max_old_space_size=x flag but that won't be very reliable across
platforms and architectures.
node: add HandleScope to prevent memory leak

MakeCallback can only be called from a valid v8::HandleScope.

Fixed #6487
src: fix Environment::GetCurrent() usage

Create a HandleScope before calling the Environment::GetCurrent() that
takes a v8::Isolate* as an argument because it creates a handle with
the call to v8::Isolate::CurrentContext().
repl: do not insert duplicates into completions

Fix invalid `hasOwnProperty` function usage.

For example, before in the REPL:

```
> Ar<Tab>
Array

Array        ArrayBuffer
```

Now:

```
> Ar<Tab>
Array

ArrayBuffer
```

Fixes #6255.
Closes #6498.