enforce2d_updater_test now simultaneously tests the cpu and gpu class, consistent with all the other unit tests
enforce2d_updater_test now simultaneously tests the cpu and gpu class, consistent with all the other unit tests

git-svn-id: 28ed9e777762dc1bc74be9511b532300888c6d39@2460 fa922fa7-2fde-0310-acd8-f43f465a7996

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