dcollections 1.0 and 2.0a beta released

[Walter Bright]

Andrei Alexandrescu wrote:
> I wrote a solution to the problem in native D. It goes like this:
> 
> alias Container!(int, addable | purgeable) Messerschmidt;
> 
> void messWith(Messerschmidt i) {
>     ... use i's capabilities to add and purge ...
> }

I agree with Michael Fortin that the | is questionable. I'd like to suggest 
instead that it should instead be a variadic list of names, like:

     alias Container!(int, addable, purgeable) Msserschmidt;

Perhaps the names should follow a naming convention,


     alias Container!(int, ContainerAddable, ContainerPurgeable) Msserschmidt;

The problem with using scoped names, like Container.Addable, is scoped names 
cannot be added to.