Seems that this line does not work correctly after 7.1 update anymore:
NSDictionary *tabBarTitleTextAttributes = [NSDictionary dictionaryWithObjectsAndKeys:[UIColor colorWithRed:0.059 green:0.737 blue:0.596 alpha:1.0], NSForegroundColorAttributeName, nil];
[[UITabBarItem appearance] setTitleTextAttributes:tabBarTitleTextAttributes forState:UIControlStateSelected];