The chief administrator of the Methacton School District has been awarded a 2% raise.   Superintendent Timothy Quinn will earn just under $175,000 for the current school year.   The school board also approved an agreement with the rest of the district administrative staff that includes 2% salary increases over each of the next three years.   In addition, the school board approved a change of status for district Director of Labor Relations and Human Resources Robert Harney.   His new title is Assistant to the Superintendent for Personnel.   The change includes an additional yearly stipend of $14,000.