Helm In Combat (Dead?)

Helm In Combat is an addon that automatically shows your helm whenever you enter combat, and hides your helm whenever you exit combat.

With the release of the Legion Pre-expansion Patch 7.0, this addon has broken for the first time in almost 7 years. Blizzard has removed the ShowHelm Lua function used to toggle the display of the helm in favor of using the new wardrobe system at a transmogrification NPC. As it stands right now, I believe this addon is impossible to fix. If I come up with any workaround, I will post an update.