FRENCH FLAG CHALLENGE!!!The french flag wasflying "proudly and defiantly" above the Sydney Harbour Bridge as Sydneysiders and tourists held a candlelight vigil in solidarity with the French following the horrific terrorist attack.A terrorist gunman killed 84 people in the French city of Nice and injured 50 more, three of whom were Australian, after he used a 25-tonne lorry to go on a killing spree.NSW Premier Mike Baird...