Pope Francis celebrated Mass before tens of thousands of believers in a football stadium in Edmonton on Tuesday, as part of a trip through Canada to repair relations with the country’s Indigenous people following revelations of abuse. Some 50,000 came to the Mass, although many seats remained empty in the Commonwealth Stadium with a capacity for 65,000. In his homily, Francis called for change and a “a future in which the history of violence and marginalization suffered by our Indigenous brothers and sisters is never repeated.” His comments came a day after the pope asked Canada’s First Nation…