child_process: don't emit same handle twice

It's possible to read multiple messages off the parent/child channel.
When that happens, make sure that recvHandle is cleared after emitting
the first message so it doesn't get emitted twice.
test: test name is the last elem, not second

When a test requires node to have parameters passed (--expose-gc) the
test name will be the last element in the command array, not the second.
doc: fix formatting in tty.markdown

Fixes #5135.
doc: child_process: document 'error' event

Fixes #5130.
domain: fix domain callback from MakeCallback

Since _tickCallback and _tickDomainCallback were both called from
MakeCallback, it was possible for a callback to be called that required
a domain directly to _tickCallback.

The fix was to implement process.usingDomains(). This will set all
applicable functions to their domain counterparts, and set a flag in cc
to let MakeCallback know domain callbacks always need to be checked.

Added test in own file. It's important that the test remains isolated.
openssl: disable HEARTBEAT TLS extension

Microsoft's IIS doesn't support it, and is not replying with ServerHello
after receiving ClientHello which contains it.

The good way might be allowing to opt-out this at runtime from
javascript-land, but unfortunately OpenSSL doesn't support it right now.

see #5119
doc: addon: fix grammar
tls: handle errors before calling C++ methods

Calling `this.pair.encrypted._internallyPendingBytes()` before
handling/resetting error will result in assertion failure:

../src/node_crypto.cc:962: void node::crypto::Connection::ClearError():
Assertion `handle_->Get(String::New("error"))->BooleanValue() == false'
failed.

see #5058
test: Accept either kind of NaN

A llvm/clang bug on Darwin ia32 makes these tests fail 100% of
the time.  Since no one really seems to mind overly much, and we
can't reasonably fix this in node anyway, just accept both types
of NaN for now.
deps: upgrade libuv to 7514149
doc: debugger, dns, http: fix grammar
doc: Add 'don't ignore errors' section to domain

Also, an example program of using cluster and domain to handle errors
safely, with zero downtime, using process isolation.
stream: Handle late 'readable' event listeners

In cases where a stream may have data added to the read queue before the
user adds a 'readable' event, there is never any indication that it's
time to start reading.

True, there's already data there, which the user would get if they
checked However, as we use 'readable' event listening as the signal to
start the flow of data with a read(0) call internally, we ought to
trigger the same effect (ie, emitting a 'readable' event) even if the
'readable' listener is added after the first emission.

To avoid confusing weirdness, only the *first* 'readable' event listener
is granted this privileged status.  After we've started the flow (or,
alerted the consumer that the flow has started) we don't need to start
it again.  At that point, it's the consumer's responsibility to consume
the stream.

Closes #5141
stream: Emit readable on ended streams via read(0)

cc: @mjijackson
setTimeout: do not calculate Timeout._when property

Dramatically improves Timer performance.
tls: handle SSL_ERROR_ZERO_RETURN

see #5004
npm: Upgrade to v1.2.15
deps: upgrade libuv to v0.10.3
2013.03.28, Version 0.10.2 (Stable)

* npm: Upgrade to 1.2.15

* uv: Upgrade to 0.10.3

* tls: handle SSL_ERROR_ZERO_RETURN (Fedor Indutny)

* tls: handle errors before calling C++ methods (Fedor Indutny)

* tls: remove harmful unnecessary bounds checking (Marcel Laverdet)

* crypto: make getCiphers() return non-SSL ciphers (Ben Noordhuis)

* crypto: check randomBytes() size argument (Ben Noordhuis)

* timers: do not calculate Timeout._when property (Alexey Kupershtokh)

* timers: fix off-by-one ms error (Alexey Kupershtokh)

* timers: handle signed int32 overflow in enroll() (Fedor Indutny)

* stream: Fix stall in Transform under very specific conditions (Gil Pedersen)

* stream: Handle late 'readable' event listeners (isaacs)

* stream: Fix early end in Writables on zero-length writes (isaacs)

* domain: fix domain callback from MakeCallback (Trevor Norris)

* child_process: don't emit same handle twice (Ben Noordhuis)

* child_process: fix sending utf-8 to child process (Ben Noordhuis)
src: tie process.versions.uv to uv_version_string()