Improve the commitdiff.

Tom

2014-10-26 df0ba7f7ff02ed02c0ba7714ae928a79d932baef

 src/main/java/com/gitblit/wicket/ExternalImage.java

@@ -27,6 +27,7 @@
      super(id, new Model<String>(url));

   }



   @Override

   protected void onComponentTag(ComponentTag tag) {

      super.onComponentTag(tag);

      checkComponentTag(tag, "img");