new getAttrs() method

src/Stage.js

@@ -183,7 +183,7 @@ Kinetic.Stage.prototype = {
         addLayer(0);
     },
     /**
-     * serialize stage and children as JSON object
+     * serialize stage and children as a JSON object
      */
     toJSON: function() {
         var go = Kinetic.GlobalObject;
@@ -210,7 +210,13 @@ Kinetic.Stage.prototype = {
         return JSON.stringify(addNode(this));
     },
     /**
-     * load stage with JSON string
+     * load stage with JSON string.  De-serializtion does not generate custom
+     *  shape drawing functions, images, or event handlers (this would make the
+     * 	serialized object huge).  If your app uses custom shapes, images, and
+     *  event handlers (it probably does), then you need to select the appropriate
+     *  shapes after loading the stage and set these properties via on(), setDrawFunc(),
+     *  and setImage()
+     * @param {String} JSON string
      */
     load: function(json) {
         function loadNode(node, obj) {