Tests

Francisco,

I added some speed tests and made them all run for a certain length of time, rather than a certain number of iterations.  Now you can run them against a local PG or one out on the Interwebs without having to mess with iteration counts.

I also made the tests able to work on < 8.2 again.  We get a lot of test failures the further back you go, but it's still quite useful.

-Glen