Scotland’s leader says she doesn’t want to use a possible British vote to leave the European Union as leverage to achieve independence. But First Minister Nicola Sturgeon concedes that Scots’ secessionist spirits would be inflamed if English voters forced them out of the EU. Sturgeon spoke Sunday on the second day of her Scottish National Party’s spring conference, which is focused on strengthening nationalist control of Scotland’s Parliament in a May 5 election. […] Sunday’s published poll data suggested that Scottish voters appear much more enthusiastic than their English neighbors about staying inside the 28-nation bloc, with 50 percent planning...