fix iOS 7 popover presented from UIBarButtonItem(s)

gistfile1.m

// on iOS 7 present a popover from an UIBarButtonItem is buggy
// the arrow is not uncentered
// as always iOS 7 is broken setImageEdgeInsets

// try that
// the fix consist in setImageEdgeInsets:

- (UIBarButtonItem *)rightItem{
    
    if (GBIsNativeiPad() && GBIsIOS7()) { // ios 7 sucks
        
        UIButton *settingsButton=[UIButton buttonWithType:UIButtonTypeCustom];
        settingsButton.frame=CGRectMake(0, 0, 50, 40);
        [settingsButton setImage:[UIImage imageNamed:@"setting"] forState:UIControlStateNormal];
        [settingsButton addTarget:self action:@selector(settings) forControlEvents:UIControlEventTouchUpInside];
        [settingsButton setImageEdgeInsets:UIEdgeInsetsMake(0, 5, 0, 0)];
        return [[UIBarButtonItem alloc] initWithCustomView:settingsButton];
    }
    
    return [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"setting"] style:UIBarButtonItemStylePlain target:self action:@selector(settings)];
}