[rfc] bzr-colo into core

[Alexander Belchenko]

John Arbash Meinel пишет:
<skip explanation of divergence between hg clones; yep that's why I 
think bzr has the better position here with packs>

> The main thing I think we are missing, is that sometimes you use
> disjoint directory structures (though for hard-links to work, they have
> to be in the same mount point/hard-drive). We could certainly create a
> "RepositoryReference" type, that just says "the real repository is
> *over-there*".
> 
> And *that* would be worlds faster than even hard-linking the repository
> files. :)

And this will be like a shared repo by reference? Cool!