Label the basic tests that are failing because ChiSquared is a special case of GammaD
Label the basic tests that are failing because ChiSquared is a special case of GammaD

See mailing-list discussion around
https://list.indiana.edu/sympa/arc/ppaml-l/2016-07/msg00075.html

zaxtax/hakaru,zachsully/hakaru,zachsully/hakaru,zaxtax/hakaru