The modules mechanism has changed quite a bit for version 0.11 and so
although simple usage remains broadly compatible there are some
significant changes in the behavior of more complex modules.
Since large parts of this were rewritten anyway, I also took the
opportunity to do some copy-editing to make the prose on this page more
consistent with our usual editorial voice and to wrap the long
lines.
Terraform modules encapsulate their resources, and dependencies can only
be expressed through outputs, which wasn't clear to me in the existing
documentation. I'm hoping a small change will make that more explicit.
