Section 87.  Effect of charter on existing ordinances.
   (a)   Ordinances, etc., not in conflict with charter remain in effect. All ordinances, resolutions, rules, and regulations in effect in the town at the time this charter becomes effective which are not in conflict with the provisions of this charter shall remain in effect until changed or repealed according to the provisions of this charter.
   (b)   All ordinances, resolutions, rules and regulations in effect in the town at the time this charter becomes effective which are in conflict with the provisions of this charter are repealed and the same hereby are repealed to the extent of such conflict.