makes the mesh parsing logic a little more robust
makes the mesh parsing logic a little more robust

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