Test that we can deploy a large number of jobs

Deploy 40 jobs, kill all the underlying containers, and make sure the
system recovers.
ditto here wrt functional-vs-loop.  Compare:
```
int matchingContainerCount = 0;
for (final Container c : dockerClient.listContainers) {
  for (final String name : c.names) {
    if (name.contains(jobName)) {
    matchingContainerCount ++;
    }
  }
}