Add uv_is_closing()

Closes #367.

support half-duplex pipes

Fix typos.

make uv_pipe_connect return void

Add argument to uv_pipe_init for IPC, unix impl

test: fix compiling with gcc-4.5

Remove uv_init calls from tests and benchmarks

bring back uv_init

unix: multiplicity

Add UDP support to libuv.

fixes for unsigned/signed comparison

Test for sync tcp and pipe connections

Windows implementation of new request API

This changes uv-win to use the new uv_req subclasses.

It gets rid of the uv_req.flags field. There used to be only request flag
(UV_REQ

Windows implementation of new request API

This changes uv-win to use the new uv_req subclasses.

It gets rid of the uv_req.flags field. There used to be only request flag
(UV_REQ_PENDING), and it was mostly obsolete; it only had a real purpose for
internal uv_read requests. Now we'll use the UV_HANDLE_READ_PENDING flag on
the handle instead.

This patch also simplifies the accept logic for named pipes on windows. We
no longer have a separate struct to store information about established
connections. Instead we just carry over the windows HANDLE from the accept
request to the client handle in uv_pipe_accept().

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Better request API

Instead of uv_shutdown, uv_write, uv_connect taking raw uv_req_t we subclass
uv_req_t into uv_shutdown_t, uv_write_t, and uv_connect_t.

uv_req_init is removed.

test-ping-pong: cast callback to expected prototype.

Named pipes implementation for Windows

C99 compatibility.

Get 99% of the way there for --std=c89 -pedantic for core files. Also cleans
up follow up warnings and others in tests.

src/ and include/ directories

Helps #71 but does not update the MSVC files.

win: IPv6 connect

uv_stream_t

nread should have type ssize_t

API Change: Move close_cb to uv_close from init functions

API Change: Remove data parameters from init functions

API change: alloc_cb moved to uv_read_start()

Fixes #47.

API Change: Pass sockaddr_in by value instead of reference