After weeks of worry, EU institutions and governments can heave a sigh of relief. The scenario they most feared in France's presidential election -- a runoff between two anti-globalization candidates -- did not come to pass in the first round of voting on Sunday. Instead, centrist leader Emmanuel Macron wound up in first place, and opinion polls suggest he will defeat the populist Marine Le Pen in the elections' second round May 7. Stock markets in most European capitals rose Monday morning, buoyed by the vote's outcome. But though the results suggest that the status quo in Europe will survive another day, the political situation in France offers little room for complacency....