title: ABAddressBookCopyArrayOfAllPeople returns empty array on device
body: <p>I develop application on iOS 6 that need access to AddressBook, I'm using following code:</p>
  
  <pre><code>NSMutableArray *contacts = [[NSMutableArray alloc]init];
  CFErrorRef *error = nil;
  ABAddressBookRef addressBook = ABAddressBookCreateWithOptions(NULL, error);
  if (error)
  {NSLog(@"ERROR!!!");}
  NSArray *arrayOfPeople = (__bridge_transfer NSArray*)ABAddressBookCopyArrayOfAllPeople(addressBook);
  </code></pre>
  
  <p>but on real device arrayOfPeople is empty...Why is this happening?
  P.S. All accesses to AddressBook are granted</p>