hg: nio/nio/jdk: First installation of potential updates for M4

[libman at terabit.com.au]

Alan,

>Vassili pushed new binaries to our download directory
>(http://download.java.net/jdk7/jsr203/binaries) this week. This build
>reports itself as nio2-b101 and has the API change so that these methods
>return void. I'll try to get these updates into jdk7 in a few weeks
>time. I assume it will be quick for you to update the filters library.

Indeed, the update of filters library was quite quick.
I switched to b101 - all tests work fine.
I only noticed that overall performance on EchoTest slows down ~10%
(compare with b99)

Will investigate more...  By the  chance, if you can this test
on your machine, please let me know if numbers are same or less.

I have added also a AsynchronousCoder
{
   public AsynchonrousCoder (AsynchronousChannel ch, Charset cs);

   // read and decode
   public Future<Integer> read (CharBuffer dst);
   public <A> void read (CharBuffer dst,
                         A attachment,
                         CompletionHandler<Integer, super A> handler)

   // encode and write
   public Future<Integer> write (CharBuffer src);
   public <A> void write(CharBuffer src,
                         A attachment,
                         CompletionHandler<Integer, super A> handler)

}

Alex