Gratitude trumps lingering gloom A certain amount of sadness fell across Roseburg’s Stewart Park on Tuesday night — the evening marked the final concert of the 2012 season of Music on the Half Shell. It was a sure sign that summer is coming to an end and it would be 10 more months before the ritual of laying down a blanket, preparing a picnic and meeting friends at the park to listen to terrific music would resume. It was as if some of the blues just belted out by entertainer Madeleine Peyroux had set in. The gloom is easily overcome, however, …