Merge pull request #70 from philipcass/patch-2

Fix CPP event accessors

Author: jankozik

Unity/Assets/NativeScript/Editor/GenerateBindings.cs

@@ -3427,7 +3427,15 @@ static void AppendEventAddRemoveMethod(
 				builders.CsharpFunctions);
 			builders.CsharpFunctions.Append('.');
 			builders.CsharpFunctions.Append(eventName);
-			builders.CsharpFunctions.Append(" += del;");
+			// TODO: More safely differenciate between add/removing event delegates
+			if (funcName.Contains("RemoveEvent"))
+			{
+				builders.CsharpFunctions.Append(" -= del;");
+			}
+			else
+			{
+				builders.CsharpFunctions.Append(" += del;");
+			}
 			AppendCsharpFunctionEnd(
 				typeof(void),
 				null,