For much of the past decade, change has come slowly to Saudi Arabia , if at all. The oil-rich kingdom was led by an ailing monarch who worked quietly behind the scenes to preserve the status quo, propping up friendly dictators around the Middle East and depending on a leadership of aging princes at home. But in the few months since the death of King Abdullah in January, the new king, Salman, has moved fast to reshape foreign and domestic policies. He has rattled alliances with the United States and regional powers that for decades have been the bedrock of stability for his kingdom, and he has also shaken up the Saudi royal family. […]