v1.8.2: home metro first, whole country in 2.5 hours

Grocery weekly ads are read home metro first (Sacramento, so Raley's, Bel Air, Safeway, Save Mart land within minutes of a new week), then the other 19 metros in order, 6 flyers every 5 minutes: all 178 flyers in about 2.5 hours instead of 10. PR #69.