CoatMux can now support more than just coats - also `addControl`, and `addWrapper`.  There are some restrictions, but they're very minor.  Deprecated the old `add/set`, and replaced them with the more explicit `addCoat`, `setCoat`.
CoatMux can now support more than just coats - also `addControl`, and `addWrapper`.  There are some restrictions, but they're very minor.  Deprecated the old `add/set`, and replaced them with the more explicit `addCoat`, `setCoat`.
diffplug/durian-swt,diffplug/durian-swt