`url.format` should escape ? and # chars in pathname, and # chars in
search, because they change the semantics of the operation otherwise.
Don't escape % chars, or anything else. (see: #4082)

onclose was never attached to 'end' so this call to remove this listener
is useless.  Delete it.

Inform V8 that the zlib context object is tied to a large off-heap buffer.

This makes the GC run more often (in theory) and improves the accuracy of
--trace_external_memory.

In zlibBuffer(), don't wait for the garbage collector to reclaim the zlib memory
but release it manually. Reduces memory consumption by a factor of 10 or more
with some workloads.

Test case:

  function f() {
    require('zlib').deflate('xxx', g);
  }
  function g() {
    setTimeout(f, 5);
  }
  f();

Observe RSS memory usage with and without this commit. After 10,000 iterations,
RSS stabilizes at ~35 MB with this commit. Without, RSS is over 300 MB and keeps
growing.

Cause: whenever the JS object heap hits the high-water mark, the V8 GC sweeps
it clean, then tries to grow it in order to avoid more sweeps in the near
future. Rule of thumb: the bigger the JS heap, the lazier the GC can be.

A side effect of a bigger heap is that objects now live longer. This is harmless
in general but it affects zlib context objects because those are tied to large
buffers that live outside the JS heap, on the order of 16K per context object.

Ergo, don't wait for the GC to reclaim the memory - it may take a long time.

Fixes #4172.

The gyp target node_etw didn't list its output dependencies. This
was causing virgin builds to fail with a "failed to open file for
write" error.

With this corrected outputs list, gyp reliably pre-creates
required output directories.

Conflicts:
	configure
	deps/v8/build/common.gypi

Remove compiler switches from $(TOPLEVEL)/deps/v8/build/common.gypi, we set
them globally in $(TOPLEVEL)/common.gypi.

Commit 29d12c73 accidentally reintroduced the switches again. In particular,
the 'cflags!': ['-O2','-Os'] section forced building V8 without any
optimizations, resulting in a steep (~66%) performance drop on some benchmarks.

Fixes #4191.

Turns on -O3 and other optimizations that may produce buggy code with some
toolchains. Use at your own risk.

Allow hostnames like '-lovemonsterz.tumblr.com' and '_jabber._tcp.google.com'.

Fixes #4177.

Patch sent upstream: http://codereview.chromium.org/10829109/

* V8: Upgrade to 3.13.7.4

* crypto: Default to buffers instead of binary strings (isaacs, Fedor Indutny)

* crypto: add getHashes() and getCiphers() (Ben Noordhuis)

* unix: add custom thread pool, remove libeio (Ben Noordhuis)

* util: make `inspect()` accept an "options" argument (Nathan Rajlich)

* https: fix renegotation attack protection (Ben Noordhuis)

* cluster: make 'listening' handler see actual port (Aaditya Bhatia)

* windows: use USERPROFILE to get the user's home dir (Bert Belder)

* path: add platform specific path delimiter (Paul Serby)

* http: add response.headersSent property (Pavel Lang)

* child_process: make .fork()'d child auto-exit (Ben Noordhuis)

* events: add 'removeListener' event (Ben Noordhuis)

* string_decoder: Add 'end' method, do base64 properly (isaacs)

* buffer: include encoding value in exception when invalid (Ricky Ng-Adam)

* http: make http.ServerResponse no longer emit 'end' (isaacs)

* streams: fix pipe is destructed by 'end'...

Forgotten in the switch to buffers as the default output in 3570f209.

Fixes #4188.

Solves #4178, but does not fix the underlying issue

Solves #4178, but does not fix the underlying issue

Conflicts:
	deps/v8/src/arm/code-stubs-arm.cc
	deps/v8/src/version.cc

This is a flag to make it easier for users to upgrade through the
breaking crypto change, and easier for us to switch it back if it's a
problem.

Explicitly set default encoding to 'buffer' in other tests, in case it
ever changes back.

crypto: Hash and Hmac default to buffers

crypto: Move Cipher encoding logic to JS

crypto: Move Cipheriv encoding logic to JS

crypto: Move Decipher encoding logic to JS

crypto: Move Decipheriv into JS, default to buffers

crypto: Move Sign class to JS

crypto: Better encoding handling in Hash.update

crypto: Move Verify class to JS

crypto: Move DiffieHellman to JS, default to buffers

crypto: Move DiffieHellmanGroup to JS, default to buffers

Also, create a test for this feature

Note that you need to start node with --gdbjit for it to become effective.

R=ulan@chromium.org
BUG=v8:1804

Review URL: https://codereview.chromium.org/11022007

This is a back-port of upstream commits 12679, 12686 and 12738.