Some New Milford High School students followed through on a planned walk out yesterday over the resignation of Principal Raymond Manka.  He plans to leave at the end of the school year.  Students yesterday gathered in gym and listened to speeches from their peers, and then walked out.  They stood in front of the high school, by Route 7 during the early part of the the school day.  After about 10 minutes, students who were outside were led back inside the building, where they returned to class.  An online petition is gathering signatures, calling for Superintendent Alishia DiCorpo's resignation.  The Board of Education is being asked to hold a vote of no confidence.  It says during her 18 month tenure, 10 administrative members of the New Milford School District have left.  The New Milford Board of Education's next meeting is tonight, at Sarah Noble Intermediate School’s Media Center, at 7pm.