Notwithstanding any other provision of law, any school district may vote to raise and appropriate money for the support of schools by official ballot as provided for in N.H. Rev. Stat. § 49-D:3, II-a by following the procedures set forth in RSA 49-B. The school district may also include within its charter a plan for voting by official ballot, pursuant to N.H. Rev. Stat. Chapter 49-B and RSA 49-D, on such other warrant articles as the school district may determine. The membership of any charter commission established in a multi-town school district shall reflect each member town’s proportionate membership on the school board. For purposes of this section, all references in N.H. Rev. Stat. Chapter 49-B and N.H. Rev. Stat. Chapter 49-D to “municipal,” “municipality,” “city,” and “town” shall mean and include “school district,” and all references to “elected body” and “governing body” shall mean and include “school board.”