Pull 1019

[Namespace]

I have now seen something I've probably overlooked before.
Here:
https://github.com/D-Programming-Language/dmd/pull/1019#issuecomment-11836011 
Kenji says, that the pull is a basic _proposal_.

What does this mean? It isn't merged until we made a final 
discussion and decision about that? :/

I thought that this is the solution for all C++ rvalue ref 
problems. Am i wrong?
I'm asking so much because I've been using it already - and I 
love it. Without such thing it is very annoying to work with 
structs.