Grouped table views seem to have extra padding on the bottom in iOS 6 (iOS 5 does not have it), but I can\'t find any documentation that suggests this is correct / expected
this solves the issue:
Obj-c
- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section { return 0.1; }
Swift:
override func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat { return 0.1 }