Add flags to uv_fs_event_init

make uv_pipe_connect return void

windows: remove quotes from PATH in uv_spawn

windows: honor O_APPEND in uv_fs_open

Added missing error codes to uv_err_name

One more EACCESS -> EACCES

UV_EACCESS -> UV_EACCES

In order to match existing Node API. See
https://github.com/joyent/node/pull/2001

UNIX: Error map ENOTSOCK

Fix UNIX pipe connect error reporting, add test

windows: uv_kill and uv_process_kill to terminate the process on SIGINT

build: remove hard-coded GCC_VERSION setting (OS X/XCode)

windows: don't emit fs-event callback after uv_fs_event handle is closed

unix: add EAI_NODATA #ifdef guard, freebsd doesn't have it

UNIX: Loop on blocking streams

Also removes a superfluous syscall during uv_tty_init for writable TTY
streams.

uv_kill

unix: map EAFNOSUPPORT error code

windows: call SetErrorMode on startup to ask the system not to handle critical errors

windows: increase the number of OVERLAPPED_ENTRYs passed to GetQueuedCompletionStatusEx

windows: add tests for uv_tcp_simultaneous_accepts

windows: knob for tuning number of concurrent accept requests

ev: fix epoll_init file descriptor leak

Fix the edge case where epoll_init() leaks a file descriptor when it is called
when the process has no open file descriptors.

unix: add getaddrinfo compatibility hack

Revisit in the future. This is not a good hack.

linux: omit superfluous fcntl(F_GETFD) syscall

Windows: the correct way to make TCP_KEEPALIVE work on MinGW

Windows: use SO_KEEPALIVE instead of TCP_KEEPALIVE

MinGW doesn't understand the latter. Closes GH-228.