addComponent(c);
c.setEnabled(getSession().getAttribute(INSTALLED_ATRIBUTE_NAME) == null);
}
private static BootstrapListener createBootstrapListener() {
return new BootstrapListener() {
@Override
public void modifyBootstrapFragment(
BootstrapFragmentResponse response) {
if (shouldModify(response)) {
Element heading = new Element(Tag.valueOf("div"), "")