Force value changed and invalidate implementation in property adapter.

Assets/Cryville/Crtr/Config/RulesetConfigPropertyAdapter.cs

@@ -30,7 +30,7 @@ namespace Cryville.Crtr.Config {
 		public void SetValue(string key, object value) {
 			_store[key] = value;
 			foreach (var prop in _props) {
-				prop.OnValueChanged();
+				prop.Invalidate();
 			}
 		}
 	}
@@ -79,9 +79,8 @@ namespace Cryville.Crtr.Config {
 		}
 
 		public event Action ValueChanged;
-		public void OnValueChanged() {
-			var ev = ValueChanged;
-			if (ev != null) ev();
+		public void Invalidate() {
+			ValueChanged?.Invoke();
 		}
 
 		public bool SetMapped { get { return false; } }