title: A NSFetchedResultsController with date as sectionNameKeyPath
body: <p>I develop an application which uses Core Data. In one UITableView, I want to display a list of my entities, sorted by the saved date of the objects. When I do this:  </p>
  
  <pre><code>fetchedResultsController = [[NSFetchedResultsController alloc]
                              initWithFetchRequest:fetchRequest
                              managedObjectContext:managedObjectContext
                                sectionNameKeyPath:@"date"
                                         cacheName:nil];
  </code></pre>
  
  <p>I get for each object a new section because this code groups the dates according to the seconds, too. But I want a list of the objects, grouped by date, but only according to the day, month and year. Is it possible and how?  </p>
  
  <p>Thank you very much for your help!! ;)</p>