By Elizabeth Pineau and Sophie Louet PARIS (Reuters) - President Jacques Chirac on Sunday vowed to restore order in France after riots in Paris spread across the country and began to unnerve his European neighbours. "The Republic is quite determined, by definition, to be stronger than those who want to sow violence or fear," Chirac said after a special domestic security council met to respond to the latest violence in which 1,300 vehicles went up in flames. "The law must have the last word," Chirac said in his first public comments since the riots started in the poor suburbs, noting...