"Phango" container classes

[Alexander Panek]

UB wrote:
> So, in such way we can have one patched standard lib and
> new/additional code can go in phobos_ext.lib
> what do you think about it?
> 
> ub

..that's basically what Tango does, apart from the fact that it's not an 
extension, but rather a replacement. The problem of having two 
incompatible runtime libraries (the core runtime, that is) still 
persists - it is addressed, though........I think I just repeated it the 
95734897th time now.