by Marianne Barriaux with Roland Lloyd Parry in Madrid Agence France Presse BARCELONA, Spain (AFP) — Tension mounted in Spain on Wednesday after Catalonia’s leader vowed that the region would declare independence within days, defying a stern warning from the country’s king that national stability was in peril. The courts meanwhile placed Catalan police officials and pro-independence civil leaders under investigation for alleged “sedition” as Spain sank deeper into its worst political crisis in decades. […]