SPRINGFIELD — Reduced payments to county treasurers across Illinois violated the state’s constitution, an appeals court said this week, despite the fact that the legislature did not authorize money for the full amounts. In a 25-page opinion released Tuesday, Justice Thomas M. Harris Jr. of the 4th District Appellate Court wrote that the treasurers’ statutorily mandated annual $6,500 stipends should have been paid in full due to a constitutional ban on changing elected officials’ pay during …