The town shall have and exercise with regard to all utilities and franchises all municipal powers including, without limitation, all powers now existing and which may be hereafter provided by the constitution and the statutes. The right of the town to construct, purchase or condemn any public utility, work or way, is expressly reserved. Except as otherwise provided by constitution or this charter, all powers concerning the granting, amending, revoking or otherwise dealing in franchises shall be exercised by the council.