$.Deferred refactoring

gistfile1.js

// BEFORE $.Deferred()

mainView.render(function(root) {
  var mainContent = root.find("#content");
  subView.render(function(el) {
    mainContent.append(el);
    nestedView.render(function(el) {
      mainContent.append(el);          
      allDoneCallback(root);  
    });
  });
});

// AFTER $.Deferred()

mainView.render().append(subView, "#content").append(nestedView, "#content").done(allDoneCallback);