Merge remote-tracking branch 'acheetham/FLUID-4323-demo' into demo

* acheetham/FLUID-4323-demo:
  FLUID-4323: Add missing 'var'
  FLUID-4323: Tie simplification to TOC model; use local template for iframe
  FLUID-4323: Fix integration demo to properly use new UIO
FLUID-4323: Add the Self-voicing panel to the fat panel