My thoughts & tries with rvalue references

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> I don't know. My opinion has no value here.
I know. But I wanted to hear just your personal opinion about the 
code and if you have any suggestions or anything.

> I may advice to write a DIP that makes more accent on 
> theoretical side of problem - what "scope" currently is, how it 
> combines with ref now, how it should combine, how Andrei's DIP 
> fits in the picture, how it fits overall type system, what are 
> possible code breakage scenarios, what are typical use cases 
> for this feature etc. If such DIP and matching pull request do 
> exist, it is only matter of agreement (with Andrei/Walter) 
> about points stated in DIP.

Hmm, I don't know if I could write a long and good text for the 
DIP. My english is very limited and not free of failures.
I still had hoped that Kenji or some other find the time, to see 
over my code and to make a DIP/Pull Request.