BRUSSELS (Reuters) -The exiled former leader of Catalonia, wanted for attempting the region's secession from Spain, laid out tough conditions for his party's support in parliament for the Socialist acting prime minister to stay in power following July's election. Acting Prime Minister Pedro Sanchez would need the seven lawmakers in Carles Puigdemont's Junts per Catalunya party if he gets a shot at forming a government. However, the Socialists said his conditions, including an amnesty for separat