A few components in demo.py doesn't show up when bump dash-daq from 0.1.5 to 0.1.6. requirements running `demo.py`: dash==1.0.0 ----- **This comes from daq0.1.6:**  with dev_tool errors: <img width="523" alt="Screen Shot 2019-07-17 at 11 15 09 AM" src="https://user-images.githubusercontent.com/35306149/61389816-8cee7580-a887-11e9-9f21-9932254eacca.png"> **Comparing with v0.1.5:** 