Cluster: fix shared handles on Windows

[orangemocha]

This is the Node side of the fix for Node's cluster module on Windows.
#7691

The other required part is
joyent/libuv#1384

Windows and Unix return certain socket errors (i.e. EADDRINUSE) at
different times: bind on Windows, and listen on Unix.
In an effort to hide this difference, libuv on Windows stores such
errors in the bind_error field of uv_tcp_t, to defer raising it at
listen time.
This worked fine except for the case in which a socket is shared in
a Node cluster and a bind error occurs.

A previous attempt to fix this (
joyent/libuv@d1e6be1
3da36fe
) was flawed becaused in an attempt to relay the error at the JS level
it caused the master to start accepting connections.

With this new approach, libuv itself is relaying the bind errors,
providing for a uniform behavior of uv_tcp_listen.

[orangemocha]

cc @piscisaureus

[bnoordhuis]

Seems like an uncontroversial change.

[indutny]

Indeed, landed in 4e68a28 ! Thank you @orangemocha

[orangemocha]

This change was reverted. It needs a libuv update.

[orangemocha]

Landed in 7ca4fa5