/**
* configure all resource bundles (css and js)
*/
private void configureResourceBundles() {
ResourceBundles bundles = getResourceBundles();
bundles.addJavaScriptBundle(WicketApplication.class, "core.js",
(JavaScriptResourceReference) getJavaScriptLibrarySettings().getJQueryReference(),
(JavaScriptResourceReference) getJavaScriptLibrarySettings().getWicketEventReference(),
(JavaScriptResourceReference) getJavaScriptLibrarySettings().getWicketAjaxReference(),
ModernizrJavaScriptReference.instance()
);