Fix Temporal Index Tests

[IanEmmons]

The tests associated with the temporal index are currently disabled. (See the runTests target in the top-level ant script.) This is because until recently a number of these tests (particularly TemporalIndexTest) relied on old JUnit behavior that has not been in effect for quite some time. I fixed these tests so that they can now run. The net effect of my changes is that some tests that have not been running for several years (again, TemporalIndexTest) are now running and, of course, they fail. The temporal index software needs to be fixed so that these tests run correctly again.

[IanEmmons]

Fixed by @sadakatsu.