Updates the test running so that we don't tear down all our containers
on a failed test run so that we can do post-mortem debugging (except on
Shippable where we can't debug them anyways).

Integration tests were "randomly" failing whenever the UUID of the value
we wrote to MySQL started with the "d", "e", or "f" characters because
these were getting stripped off during parsing and we'd incorrectly report
this as a replication failure.