Boston's Marriott Copley Place hotel permanently laid off about half of its staff on Monday, sending them off with reduced severance packages after revising the policy just three days before announcing the cuts. Elizabeth Morales, who worked as a housekeeper for 26 years until she was let go, joined Jim Braude along with Carlos Aramayo, president of the union Unite Here Local 26, which does not represent the workers at the hotel but has been helping them after the layoffs.