Update test_npt_integrator to work with ComputeThermo
Update test_npt_integrator to work with ComputeThermo

git-svn-id: f4d3f11dd30626d3fa67da974003c91fff19c220@2984 fa922fa7-2fde-0310-acd8-f43f465a7996

joaander/hoomd-blue,joaander/hoomd-blue,joaander/hoomd-blue,joaander/hoomd-blue,joaander/hoomd-blue,joaander/hoomd-blue