fix demo

demo/fitImage.html

@@ -5,7 +5,7 @@
     <title>canvas拟合图像</title>
     <script src="../dep/esl.js"></script>
     <script src="../dep/jquery.min.js"></script>
-    <script src="../dep/clipper.js"></script>
+    <script src="../dep/paper-full.js"></script>
     <link rel="stylesheet" type="text/css" href="./css/editor.css">
     <style>
         body {
@@ -48,7 +48,8 @@
         }
     });
     define('jquery', window.jQuery);
-    define('ClipperLib', window.ClipperLib);
+    paper.install(window);
+    define('paper', paper);
 </script>
 
 <script>require(['demo/fitImage'])</script>