Spain moved to turn the screws on Catalonia as the European Union refused to recognize the rebel region’s bid for independence, sending the country into its biggest crisis since the end of Francisco Franco’s dictatorship and threatening to unravel a four-decade old democratic settlement. After a day of violence in the region on Sunday when the central government sent in police to disrupt voting in an illegal referendum on independence, Justice Minister Rafael Catala said it would use all the tools at its disposal — including if necessary the suspension of Catalonia’s autonomy — to enforce the rule of law. […]