Fix inheiritance and ctor of RigidBodyMeshPts
Fix inheiritance and ctor of RigidBodyMeshPts

crogers3/drake,tkoolen/drake,astrorog/drake,astrorog/drake,manuelli/drake,crogers3/drake,crogers3/drake,tkoolen/drake,sheim/drake,billhoffman/drake,astrorog/drake,sheim/drake,sheim/drake,tkoolen/drake,edowson/drake,sheim/drake,scottviteri/drake,hanssusilo/drake,psiorx/drake,thientu/drake,hanssusilo/drake,psiorx/drake,thientu/drake,edowson/drake,scottviteri/drake,astrorog/drake,hanssusilo/drake,psiorx/drake,sheim/drake,manuelli/drake,billhoffman/drake,psiorx/drake,edowson/drake,astrorog/drake,manuelli/drake,crogers3/drake,hanssusilo/drake,manuelli/drake,crogers3/drake,scottviteri/drake,edowson/drake,scottviteri/drake,hanssusilo/drake,scottviteri/drake,thientu/drake,thientu/drake,astrorog/drake,psiorx/drake,crogers3/drake,edowson/drake,edowson/drake,scottviteri/drake,manuelli/drake,crogers3/drake,thientu/drake,billhoffman/drake,billhoffman/drake,hanssusilo/drake,billhoffman/drake,sheim/drake,hanssusilo/drake,sheim/drake,billhoffman/drake,tkoolen/drake,thientu/drake,edowson/drake,tkoolen/drake,sheim/drake,tkoolen/drake,psiorx/drake,manuelli/drake,psiorx/drake,billhoffman/drake,hanssusilo/drake,tkoolen/drake,edowson/drake,psiorx/drake,crogers3/drake,billhoffman/drake,scottviteri/drake,manuelli/drake,astrorog/drake,thientu/drake