changed material tests to reflect the discussion in pull request #373
changed material tests to reflect the discussion in pull request #373

rwcarlsen/cyclus,gidden/cyclus,mbmcgarry/cyclus,rwcarlsen/cyclus,hodger/cyclus,hodger/cyclus,mbmcgarry/cyclus,Baaaaam/cyclus,mbmcgarry/cyclus,gidden/cyclus,mbmcgarry/cyclus,hodger/cyclus,gidden/cyclus,hodger/cyclus,gidden/cyclus,rwcarlsen/cyclus,rwcarlsen/cyclus,hodger/cyclus,Baaaaam/cyclus,Baaaaam/cyclus