Arvados

I made a throwaway branch to define a strict vocabulary for the tests and run that on Jenkins to see how much effort would be involved. I just used the example vocabulary from our documentation, with strict_tags set true. I've attached the logs from all failing tests.

As far as I can tell, all of these are little one-offs that are just checking property propagation generally, and it would be no problem to update them to use properties defined in our test vocabulary. s3_test.go records a lot of failures, but that's because the property is in a common fixture and checked on every test. We just need to update one fixture and one assertion to get them all passing again.