So much of the previous charter of the city and of laws passed in amendment or supplementary to the charter, as now may be in force, relative to the constitution and bounds of its several wards, its school districts and sewer, lighting, and other special precincts and their government and affairs, to its water works, and to the borrowing of money in aid of its school districts, is hereby continued in force, with the exception of such provisions as are inconsistent with this chapter. All special legislation relative to the government of the city, not expressly saved, is hereby repealed. All general laws relative to the government of cities shall remain in force in the city so far as consistent with this chapter. Existing ordinances and other municipal regulations shall remain in force so far as the same can be applied consistently with the intents and purposes of this chapter, but are hereby annulled so far as inconsistent with this chapter. In all existing laws, ordinances and regulations hereby saved, references to the city councils, board of mayor and aldermen, board of public works, or other bodies or officers hereby abolished and superseded, or to bodies or officers hereby abolished and superseded, or to bodies or officers whose constitution or functions are hereby altered, shall be taken to mean the body or officer upon whom jurisdiction of the matter in question is conferred by the charter or by the administrative code.