Atutor.no

When managing tests, the instructor can click on the "statistics" button to view statistics for each question of the test. Last year we added (on request from some of our users) a small bar chart to more easily visualize these statistics. However, because we used a css trick to create this bar that utilized the property "background", these bars didn't appear on printouts. This little patch fixes the printout problem and enables these bars for the default theme. (I thought they already were enabled for default theme but it seems they were not..)