Contributed by Jonathan Stevenson / A sense of continuity and integration permeates Stockholm’s grand state museums, its smaller konsthalls, its bountiful old salons, its stylish established galleries, and even its hipster-ish artists’ spaces. Just as consistently, though, contemporary assertiveness challenges tradition. At least on the evidence of an unavoidably incomplete late September visit to the city, the net result is contained vibrancy, exciting and inventive but also richly contextualized and sensibly progressive.