Added a "tree unqiue" key to each node in the category tree so that we can find it again when the onToggle() event fires.
Added a "tree unqiue" key to each node in the category tree so that we can find it again when the onToggle() event fires.

mbedded-ninja/NinjaCalc,mbedded-ninja/NinjaCalc,mbedded-ninja/NinjaCalc