Update to hapi 3.x

This is really a "pull request as question."

I'm interested in using the hapi 3.0.0 release, but can't find information on what else does/doesn't work with it in the Spumko ecosystem.  For yar, the tests pass with `hapi@3.0.0`.  Does this mean the two can be used together?

I've got the same question about travelogue (where tests also pass with `hapi@3.0.0`).  Thanks for any tips.  Ok by me if this gets closed and the answer is "don't use hapi 3 yet."