adds logger as optional ctor arg to facilitate testing

src/robotlegs/bender/extensions/mediatorMap/impl/MediatorMap.as

@@ -1,14 +1,15 @@
 //------------------------------------------------------------------------------
-//  Copyright (c) 2009-2013 the original author or authors. All Rights Reserved. 
-// 
-//  NOTICE: You are permitted to use, modify, and distribute this file 
-//  in accordance with the terms of the license agreement accompanying it. 
+//  Copyright (c) 2009-2013 the original author or authors. All Rights Reserved.
+//
+//  NOTICE: You are permitted to use, modify, and distribute this file
+//  in accordance with the terms of the license agreement accompanying it.
 //------------------------------------------------------------------------------
 
 package robotlegs.bender.extensions.mediatorMap.impl
 {
 	import flash.display.DisplayObject;
 	import flash.utils.Dictionary;
+
 	import robotlegs.bender.extensions.matching.ITypeMatcher;
 	import robotlegs.bender.extensions.matching.TypeMatcher;
 	import robotlegs.bender.extensions.mediatorMap.api.IMediatorMap;
@@ -45,9 +46,9 @@ package robotlegs.bender.extensions.mediatorMap.impl
 		/**
 		 * @private
 		 */
-		public function MediatorMap(context:IContext)
+		public function MediatorMap(context:IContext, logger : ILogger = null)
 		{
-			_logger = context.getLogger(this);
+			_logger = logger || context.getLogger(this);
 			_factory = new MediatorFactory(context.injector);
 			_viewHandler = new MediatorViewHandler(_factory);
 		}