Refactoring jQuery isolation in shape tracing

--HG--
branch : 1.x
extra : transplant_source : %80U3%A6%05%FC%AB%27%DE%B0%1AJzJ%11%60%0F%C7%AC_

src/Orchard.Web/Modules/Orchard.DesignerTools/Scripts/orchard-designertools-shapetracing.js

@@ -1,5 +1,5 @@
-jQuery(document).ready(function ($) {
-    $(function () {
+(function ($) {
+    $(document).ready(function () {
         // default shape window height when first opened
         var defaultHeight = 200;
 
@@ -461,4 +461,4 @@
         return node;
     }
 
-});
+})(jQuery);