Prevent double dispatch of preload complete log message

lime/app/Preloader.hx

@@ -50,6 +50,7 @@ class Preloader #if flash extends Sprite #end {
 	private var libraryNames:Array<String>;
 	private var loadedLibraries:Int;
 	private var loadedStage:Bool;
+	private var preloadComplete:Bool;
 	private var preloadStarted:Bool;
 	private var simulateProgress:Bool;
 	
@@ -341,7 +342,13 @@ class Preloader #if flash extends Sprite #end {
 		
 		if (!simulateProgress && #if flash loadedStage && #end loadedLibraries == (libraries.length + libraryNames.length)) {
 			
-			Log.verbose ("Preload complete");
+			if (!preloadComplete) {
+				
+				preloadComplete = true;
+				
+				Log.verbose ("Preload complete");
+				
+			}
 			
 			start ();