disabling ri and rdoc by default

[Torsten Zühlsdorff]

Hello Steve,

> I was thinking, maybe we don't need ri and rdoc stuff in packages by
> default. For servers they aren't that useful and even for development, I
> get the impression people don't use them much. Anyone have opinions for
> or against?

I have no objections. As you stated: for servers they aren't useful. And 
for development i personally use other sources, because its more handy.

Greetings,
Torsten