SPRINGFIELD — Gov. Bruce Rauner continued his leadership by executive order Wednesday, tackling prison crowding by creating a commission to recommend criminal justice and sentencing reforms. Nine blocks east of the Statehouse in downtown Springfield, the Republican appeared in the local courthouse to pay homage to Sangamon County’s community-based prison-diversion program and sign an executive order compelling the panel to provide him by July 1 with preliminary options for reducing the prison population.  …