[development] module names and namespaces

[Daniel F. Kudwien]

> But isn't the entire "fb_social" namespace within the "fb" namespace?

Yes, but that's the edge-case for which no solution exists.  There are various
node_* or views_* or user_* modules, which all have to make sure that none of
them unintentionally breaks the functionality of the "parent" namespace.

That said, "fb_social" is only able to break the "fb" namespace in case "fb"
implements stuff that starts with "fb_social".  Sounds rather unlikely to me,
but I also don't know your code.

In any case, this namespace conflict sounds easily resolvable through a gentle
agreement of both maintainers.

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