RFC: io and os reform

This RFC proposes a significant redesign of the `std::io` and `std::os` modules
in preparation for API stabilization. The specific problems addressed by the
redesign are given in the Problems section below, and the key ideas of the
design are given in Vision for IO.

[Rendered](https://github.com/aturon/rfcs/blob/io-os-reform/text/0000-io-os-reform.md)
I'm not talking about unix domain sockets or named pipes. I'm talking about anonymous pipes, which are available on Windows. It is *clearly* a cross-platform abstraction. Why are you bringing up unrelated issues?

http://msdn.microsoft.com/en-us/library/windows/desktop/aa365152(v=vs.85).aspx