added drawScene() method which only redraws the scene and not the buffer

dist/kinetic-core.js

@@ -3635,6 +3635,15 @@ Kinetic.Layer = Kinetic.Container.extend({
     drawBuffer: function() {
         this.draw(this.bufferCanvas);
     },
+    /**
+     * draw children nodes on scene.  this includes any groups
+     *  or shapes
+     * @name drawScene
+     * @methodOf Kinetic.Layer.prototype
+     */
+    drawScene: function() {
+        this.draw(this.getCanvas());
+    },
     /**
      * set before draw handler
      * @name beforeDraw

src/Layer.js

@@ -68,6 +68,15 @@ Kinetic.Layer = Kinetic.Container.extend({
     drawBuffer: function() {
         this.draw(this.bufferCanvas);
     },
+    /**
+     * draw children nodes on scene.  this includes any groups
+     *  or shapes
+     * @name drawScene
+     * @methodOf Kinetic.Layer.prototype
+     */
+    drawScene: function() {
+        this.draw(this.getCanvas());
+    },
     /**
      * set before draw handler
      * @name beforeDraw

tests/js/unitTests.js

@@ -4738,7 +4738,6 @@ Test.prototype.tests = {
             y: 10
         });
         var mapLayer = new Kinetic.Layer();
-        var mapCanvas = mapLayer.getCanvas();
         
         for(var key in worldMap.shapes) {
             var c = worldMap.shapes[key];
@@ -4755,12 +4754,12 @@ Test.prototype.tests = {
 
             path.on('mouseover', function() {
                 this.setFill('red');
-                mapLayer.draw(mapCanvas);
+                mapLayer.drawScene();
             });
 
             path.on('mouseout', function() {
                 this.setFill('#ccc');
-                mapLayer.draw(mapCanvas);
+                mapLayer.drawScene();
             });
 
             mapLayer.add(path);