NEWTON - The demise of a Natick has been slightly exaggerated, at least for one night.  Three straight losses against very good teams in Milton, Milford and Mansfield had many writing the Redhawks off as a young team still a year or two away from truly competing again.  Then, Friday night happened…on the road.   Facing an unbeaten Newton North team looking to step over the old grizzled veteran of...