Applied changes according to code review comments.

Eddy Young

2015-05-23 c33ac10581d3ef2c7ec9de4122bd4876ec5db6e9

 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");