streaming redux

[Andrei Alexandrescu]

I've put together over the past days an embryonic streaming interface. 
It separates transport from formatting, input from output, and buffered 
from unbuffered operation.

http://erdani.com/d/phobos/std_stream2.html

There are a number of questions interspersed. It would be great to start 
a discussion using that design as a baseline. Please voice any related 
thoughts - thanks!


Andrei