Eliminate const keyword here
Eliminate const keyword here

Sometimes mutable signal listeners are desirable.

leapmotion/autowiring,codemercenary/autowiring,codemercenary/autowiring,leapmotion/autowiring,leapmotion/autowiring,codemercenary/autowiring,codemercenary/autowiring,leapmotion/autowiring,leapmotion/autowiring,codemercenary/autowiring,leapmotion/autowiring,codemercenary/autowiring