MONTREAL -- The warming tent for people without homes in downtown Montreal’s Cabot Square will remain until at least May 17, after which the city says it will need to come down. It’s the third time the city has extended the deadline for the tent, which provides after-curfew shelter to close to 700 homeless people per week. “It’s a community in and of itself,” said Mary Martin-Goodleaf, one of the tent’s fundraisers. “It’s become a safe haven.” After curfew, she says, “everyone else has a place to go … We have forgotten people who are out on the street.”