Fixed a bug where constraint_forces was not cleared by globals.clear()
Fixed a bug where constraint_forces was not cleared by globals.clear()

git-svn-id: 9672dfcc0771119c6516a56fa23977343927474e@3163 fa922fa7-2fde-0310-acd8-f43f465a7996

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