Proposal: ByteString based datagram communication (Ticket #1238 )

[Bryan O'Sullivan]

Robert Marlow wrote:
> There doesn't seem to be any further concerns about this patch and it
> has been tested against ia32 linux ghc and hugs. Can this patch now be
> accepted or can somebody test it against windows?

For a single patch, it does rather a lot of different things.  It should 
at least be split into four different patches.

Also, am I not mistaken, or does it not change the existing API?

-sendTo,         -- :: HostName -> PortID -> String -> IO ()
+sendTo,         -- :: HostName -> PortID -> B.ByteString -> IO Socket
+sendTo_,        -- :: HostName -> PortID -> B.ByteString -> IO ()

	<b