BERLIN, March 30 (Reuters) - Germany will continue to pay for Russian gas in euros or dollars, a government spokesman said, adding that Russian President Vladimir Putin had told the German chancellor nothing would change for European partners despite his plan for rouble payments. Russia has said that because of Western financial sanctions over Ukraine, it plans to require payment for its energy exports - especially the gas that Germany depends on - in roubles rather than the usual euros or dollars from April 1. In a phone call between the leaders, Putin told German Chancellor Olaf Scholz that nothing...