Define Path#toShape() and Shape#toPath() as aliases to #clone().

src/basic/Point.js

@@ -1,4 +1,3 @@
-
 /*
  * Paper.js - The Swiss Army Knife of Vector Graphics Scripting.
  * http://paperjs.org/

src/item/Shape.js

@@ -186,6 +186,8 @@ var Shape = Item.extend(/** @lends Shape# */{
         return path;
     },
 
+    toShape: '#clone',
+
     _draw: function(ctx, param, strokeMatrix) {
         var style = this._style,
             hasFill = style.hasFill(),

src/path/Path.js

@@ -1522,6 +1522,8 @@ var Path = PathItem.extend(/** @lends Path# */{
         return null;
     },
 
+    toPath: '#clone',
+
     _hitTestSelf: function(point, options) {
         var that = this,
             style = this.getStyle(),