fix(jqLite): change expando property to a more unique name

This was causing issue when element === window
A better strategy can be thought of later on.

src/jqLite.js

@@ -98,7 +98,7 @@
  * @returns {Object} jQuery object.
  */
 
-JQLite.expando = 'ng';
+JQLite.expando = 'ng339';
 
 var jqCache = JQLite.cache = {},
     jqId = 1,
@@ -310,7 +310,7 @@ function jqLiteOff(element, type, fn, unsupported) {
 }
 
 function jqLiteRemoveData(element, name) {
-  var expandoId = element.ng,
+  var expandoId = element.ng339,
       expandoStore = jqCache[expandoId];
 
   if (expandoStore) {
@@ -324,17 +324,17 @@ function jqLiteRemoveData(element, name) {
       jqLiteOff(element);
     }
     delete jqCache[expandoId];
-    element.ng = undefined; // don't delete DOM expandos. IE and Chrome don't like it
+    element.ng339 = undefined; // don't delete DOM expandos. IE and Chrome don't like it
   }
 }
 
 function jqLiteExpandoStore(element, key, value) {
-  var expandoId = element.ng,
+  var expandoId = element.ng339,
       expandoStore = jqCache[expandoId || -1];
 
   if (isDefined(value)) {
     if (!expandoStore) {
-      element.ng = expandoId = jqNextId();
+      element.ng339 = expandoId = jqNextId();
       expandoStore = jqCache[expandoId] = {};
     }
     expandoStore[key] = value;