ATHENS (Reuters) - Greece should stick to reforms it has agreed with its lenders as part of a third bailout, German Foreign Minister Frank-Walter Steinmeier said in a newspaper interview released on Thursday. "After intensive negotiations and painful compromises, we all agreed to an extensive reform package," Steinmeier told Ta New newspaper. "My advice is that it (the package) is implemented with determination and on the other hand, Europe should not lessen its help that Greece still needs." Steinmeier also said Europe will support Greece in dealing with the refugee crisis. ...