bug 582256, tree_progress is busted if there's a run with no srctime, use Min and Max instead of ordered queries
bug 582256, tree_progress is busted if there's a run with no srctime, use Min and Max instead of ordered queries

mozilla/elmo,AdrianGaudebert/elmo,mozilla/elmo,AdrianGaudebert/elmo,Pike/elmo,mozilla/elmo,Pike/elmo,Pike/elmo,Pike/elmo,mozilla/elmo,AdrianGaudebert/elmo