Switch to #pathData for JSON serialization of Path and CompoundPath.

src/item/Group.js

@@ -21,6 +21,9 @@
  */
 var Group = this.Group = Item.extend(/** @lends Group# */{
 	_type: 'group',
+	_serializeFields: {
+		children: []
+	},
 
 	// DOCS: document new Group(item, item...);
 	/**

src/item/Item.js

@@ -39,7 +39,6 @@ var Item = this.Item = Base.extend(Callback, {
 	// that can be ommited.
 	_serializeFields: {
 		name: null,
-		children: [],
 		matrix: new Matrix(),
 		locked: false,
 		visible: true,

src/path/CompoundPath.js

@@ -22,6 +22,10 @@
  */
 var CompoundPath = this.CompoundPath = PathItem.extend(/** @lends CompoundPath# */{
 	_type: 'compoundpath',
+	_serializeFields: {
+		pathData: null
+	},
+
 	/**
 	 * Creates a new compound path item and places it in the active layer.
 	 *

src/path/Path.js

@@ -21,8 +21,7 @@
 var Path = this.Path = PathItem.extend(/** @lends Path# */{
 	_type: 'path',
 	_serializeFields: {
-		segments: [],
+		pathData: null
-		closed: false
 	},
 
 	/**