fix outer_joins in rails3
fix outer_joins in rails3

mallikarjunayaddala/active_scaffold,budree/active_scaffold,mallikarjunayaddala/active_scaffold,activescaffold/active_scaffold,activescaffold/active_scaffold,budree/active_scaffold,activescaffold/active_scaffold,mallikarjunayaddala/active_scaffold,budree/active_scaffold,AlbertoBarrago/active_scaffold,AlbertoBarrago/active_scaffold,AlbertoBarrago/active_scaffold