Rename the rule jQuery versions loaded

lib/metadata/policies.js

@@ -371,7 +371,7 @@ var policies = {
     },
     "jQueryVersionsLoaded": {
         "tool": "phantomas",
-        "label": "Several versions loaded",
+        "label": "Several jQuery loaded",
         "message": "<p>jQuery is a heavy library. You should <b>never</b> load jQuery more than once on the same page.</p>",
         "isOkThreshold": 1,
         "isBadThreshold": 2,