Fixup test fallout from https://rbcommons.com/s/twitter/r/722/

Aka - always run ci.sh or check out Travis.

Switch from manual alias_groups setup to letting the backends
do their thing for continued robustness at the test's current
abstraction level.

Testing Done:
I noticed travis-ci was broken for-real here: https://travis-ci.org/pantsbuild/pants/jobs/30611368
From my change here: https://rbcommons.com/s/twitter/r/722/

This time did the right thing and the following is green:
./build-support/bin/ci.sh

Bugs closed: 378

Reviewed at https://rbcommons.com/s/twitter/r/724/