Steady as he goes The man with the best chance at becoming California's first Latino governor in more than a century has some unfinished business his mother has long been pestering him about.By Edwin Garcia / Mercury News Steady as he goes EVERYMAN IMAGE HAS SERVED BUSTAMANTE WELL -- SO FAR By Edwin Garcia Mercury News Mercury News Archives Lt. Gov. Cruz Bustamante The man with the best chance at becoming California's first Latino governor in more than a century has some unfinished business his mother has long been pestering him about.Lt. Gov. Cruz Bustamante, a self-described average...