Welcome to The Weekend Stream, a relaxing weekly review of notable digital-only catalogue titles. There may be no CD or vinyl, but there's plenty of great new/old music to usher you into the weekend.From Rufus Wainwright to Lana Del Rey, Donna Summer to ZTT, we're bringing you the goods. Rufus Wainwright, Rufus Wainwright (25th Anniversary Edition) (Geffen/UMe) (iTunes / Amazon) One of the best-reviewed albums of 1998 was the baroque-pop debut from singer/songwriter Rufus Wainright. With