Mayor de Blasio held court on Friday with ringleaders of the city protests that have led to cop assaults and other mayhem — lending a sympathetic ear as they ticked off their demands. Hizzoner had tried to keep the location of his meeting with the members of Justice League NYC a secret, but reporters discovered it was at the Midtown offices of a union connected to the one that employs a man charged with busting an NYPD lieutenant’s nose on the Brooklyn Bridge. “They have a list of demands, some which I agree with, some which I don’t,” de Blasio...