This fixes windows stdio pipes in streams2 land.

It used to be off before. It's extremely unlikely that such an attack
would be a viable attack against node. And it makes AES much slower.

When perlasm generates MASM code it sets the assembler target to 468.
In this mode MASM refuses to assemble a couple of instructions. Bumping
the target to 686 solves this problem.

This patch brings the openssl library that is built with gyp closer
to what the standard build system produces.

All opensslconf.h versions are now merged into a single file, which
makes it easier for compiled addons to locate this file.

Apply the same optimization to res.end(buf) that is applied to res.end(str).

Speeds up `node benchmark/http_simple_auto -k -c 1 -n 25000 buffer/1`
(non-chunked response body) by about 750x. That's not a typo.

Chunked responses:

  $ cat tmp/http-chunked-client.js
  // Run `node benchmark/http_simple` in another terminal.
  var http = require('http'), url = require('url');
  var options = url.parse('http://127.0.0.1:8000/buffer/1/1');
  options.agent = new http.Agent({ maxSockets: 1 });
  for (var i = 0; i < 25000; ++i) http.get(options);

Before:

  $ time out/Release/node tmp/http-chunked-client.js
  real    16m40.411s
  user    0m9.184s
  sys     0m0.604s

After:

  $ time out/Release/node tmp/http-chunked-client.js
  real    0m5.386s
  user    0m2.768s
  sys     0m0.728s

That's still a 185x speed-up.

Fixes #4415.

Use res.end() for the final chunk so we can benchmark the 'hot path' shortcut
in lib/http.js that packs the headers and the body into a single packet.

This fixes pummel/test-net-write-callbacks

This is very similar to http.sh, but generates a flamegraph
with dtrace, pruning off the single-hit stacks so that we can
more easily see the places where relevant amounts of time are
spent.

Remove the idle garbage collector. Its purpose was to run the garbage collector
when the application is idle but it never worked quite right. Many people have
complained over the years that with heaps > 128 MB, a node.js process never
sleeps anymore; instead, it spends nearly 100% of its CPU time trying to
collect garbage.

Back in the old days, idle GC probably was a good idea. But with V8's current
incremental collector, idle gc appears to offer no time or space benefits
whatsoever and indeed seems actively harmful. Remove it.

Fixes #3870.

Replace dashes with underscores. When loading foo-bar.node, look for
foo_bar_module, not foo-bar_module. The latter is not a legal symbol name.

This fixes the case where stderr doesn't flush before the process exits.

Also Revert "buffer: use MAP_ANON, fix OS X build"

This reverts commit ddb15603.
This reverts commit 2433ec82.

When Mikael Bourges-Sevenier added support for Uint8ClampedArray in 67fc1daf,
the new type was not added to SizeOfArrayElementForType().

Although it is not used externally by node, it is needed by upstream and Plask.

This effectively reverts:

    commit 14448013
    Author: Aaron Jacobs <jacobsa@google.com>
    Date:   Thu Mar 15 13:26:35 2012 +1100

        typed arrays: unexport SizeOfArrayElementForType()

        It isn't used anywhere else, so made it an implementation detail in
        v8_typed_array.cc.

This reverts commit 02dffb06.
DEAD_CODE_STRIPPING is stripping out CRYPTO_set_add_lock_callback
symbol on which some addons are relying.