same fix from double integrator, but for pendulum example
same fix from double integrator, but for pendulum example

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