uv-unix: set stream->accepted_fd=-1 in uv_pipe_init()

stream->accepted_fd was zeroed in uv_pipe_init() and that made
uv__finish_close() close the stdin file descriptor. Not good.

add spawn benchmark

windows: set mode for child pipe handle

more output

Windows: spawn child processes

uv_spawn requires stdio pipes to be initialized

bench: remove unused locals from benchmark-pump.c

pipe: uv_pipe_listen raises UV_EINVAL on unbound socket

uv-unix: use lock file to detect stale UNIX sockets

uv-unix: add simple lock file API for internal use

Increase eio thread stacksize

Fix getaddrinfo bug

Fix solaris build

Fix memleak in libeio.

fix mingw build; add stubs for child process API

uv-unix: cast argument to uv__stream_open() to uv_stream_t*

Add spawn_stdout test

Start uv_spawn()

Unix only at the moment. Lacks test for stdio

uv_std_handle + uv_listen on stdin

merge uv_tcp_listen and uv_pipe_listen into uv_listen

long lines

Windows: do not initialize pipe handle in uv_pipe_accept

uv-unix: fix 'comparison between signed and unsigned integer expressions'

unix: build with `-Wall -Wextra -Wno-unused-parameter`

uv-unix: uv_pipe_bind: raise UV_EACCESS on inaccessible socket

Fixes failing test pipe_bind_error_addrnotavail.