new getAttrs() method

dist/kinetic-core.js

@@ -284,6 +284,12 @@ Kinetic.Node.prototype = {
             }
         }
     },
+    /**
+     * get attrs
+     */
+    getAttrs: function() {
+        return this.attrs;
+    },
     /**
      * show node
      */
@@ -1113,7 +1119,7 @@ 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;
@@ -1140,7 +1146,13 @@ 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) {