The alphabetic sorting of lists in the User/Organization settings was
changed in fa0a5ec to be case insensitive.
This commit makes changes to the list_render.js test to verify that the
sorting of these lists is indeed case insensitive.
This run_test helper sets up a convention that allows
us to give really short tracebacks for errors, and
eventually we can have more control over running
individual tests. (The latter goal has some
complications, since we often intentionally leak
setup in tests.)