Naperville News Digest: Ashley Whippet disc dog competition returns Sept 2-3; Ron Keller to be grand marshal of Naperville Labor Day Parade; A D O P T has $6 adoption fees Sunday; play fundraiser planned chicagotribune.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from chicagotribune.com Daily Mail and Mail on Sunday newspapers.