New test that binary contenti.

(and a few unicode tests because they make clearer what we're testing)
works.  disabled for now since they mostly do not pass on 1.8.  We'll
want to enable them when we start integration testing the v2 tree.
Enable all the binary tests inside of the role.

They're not being run by default so make sure they're ready to show
errors when we turn them on for v2