old_contents: define(['backbone'], function(Backbone) {
      return Backbone.Model.extend({
          defauts: {
              title: 'New event',
              duration: 0,
              current: true,
              description: 'New event description'
          }
      });
  });
  
new_contents: define(['backbone'], function(Backbone) {
      return Backbone.Model.extend({
          defaults: {
              title: 'New event',
              duration: 0,
              current: true,
              description: 'New event description',
              date: new Date(Date.now())
          }
      });
  });
  
subject: Fix typo and add default date to event