IFeathersControl: added creationComplete event and isCreated getter

source/feathers/core/IFeathersControl.as

@@ -18,6 +18,15 @@ package feathers.core
 	 */
 	[Event(name="initialize",type="starling.events.Event")]
 
+	/**
+	 * Dispatched after the component has validated for the first time. Both
+	 * <code>initialize()</code> and <code>draw()</code> will have been called,
+	 * and all children will have been created.
+	 *
+	 * @eventType feathers.events.FeathersEventType.CREATION_COMPLETE
+	 */
+	[Event(name="creationComplete",type="starling.events.Event")]
+
 	/**
 	 * Dispatched when the width or height of the control changes.
 	 *
@@ -96,6 +105,11 @@ package feathers.core
 		 */
 		function get isInitialized():Boolean;
 
+		/**
+		 * @copy feathers.core.FeathersControl#isCreated
+		 */
+		function get isCreated():Boolean;
+
 		/**
 		 * @copy feathers.core.FeathersControl#nameList
 		 */