[Coco] Changes for ToolShed and NitrOS-9 Projects

[Jeff Teunissen]

My only complaint is that Mercurial makes it really hard to work with
other tools like git. From the other direction it's easy, Hg can work
with git repositories transparently using the "convert" extension, but
the opposite is not true -- you can't use git to work with a Hg repo
transparently. Part of this is due to git's popularity advantage (it's
important for Hg developers to be able to use git repos as natively as
possible), but it's also because git doesn't record the name of the
head a commit was committed to, which the Hg developers thought was
important or something.

Basically, the only way these days to allow everyone to use whatever
they like is to use git on the "central" repositories and let everyone
use whatever they like, because all the other tools can work with it.