At first it doesn't look so bad. Two and a half stars out of five isn't terrible. That average score, given by nearly 500 iTunes users to the two-week-old Civilization Revolution 2, isn't glorious, of course. But maybe Civilization Revolution 2 is at least mediocre? That's partly right. It also costs $15, and it… » 7/14/14 5:00pm 7/14/14 5:00pm