Test performance

[Patricia Shanahan]

I've done a simple survey of the test run times, and the approximately 
20 tests that each took more than 400 seconds on one of my runs 
collectively account for almost 4 hours of the run time.

I plan to look individually at some of those 20 tests to see if there 
are significant savings without reducing the test's effectiveness. I may 
learn some principles that can be applied on a bulk basis to shorter tests.

Patricia