Fix TruncationSelectorTest, which was broken when commit 72613a3c353aa9709d242b04721fe7d050b3f213 added the FitnessComparator idiom.
Update SimpleExperimentExample.properties, and modify PinCushionSphere to require that the number of dimensions is explicitly specified.  This can be inferred from the intervals parameter, but is harder to read and can't be referenced by parameter macros.