Scotland is back in the headlines. Indy2 fever is rising again. The recent rejection by the UK Supreme Court of the case for an advisory referendum has reignited the simmering battle. With the courtroom niceties over, the ultimate clash over the future of the Union looms closer. For investors, while the potential severing might be significant, the more immediate insights are arguably from the 1707 melding of the Kingdoms. For most of the 17th century, Scotland enviously noted the colonial expansion of its southern neighbour and the remarkable success of the Dutch Republic. Increasingly, Scottish political and commercial leaders were…