The existing ordinances covering zoning, in their entirety, and including the maps heretofore adopted and made a part of said ordinances, are hereby superseded and amended to read as set forth herein; provided, however, that this title, including the attached map or maps, shall be deemed a continuation of previous codes and not a new enactment, insofar as the substance of revisions or previous codes is included in this title, whether in the same or in different language; and this title shall be so interpreted upon all questions of construction relating to tenure of officers and boards established by previous codes, to questions of conforming or nonconforming uses and buildings and structures, and to questions as to the dates upon which such uses, buildings or structures became conforming or nonconforming. (Ord. 93-5, 7-6-1993, eff. 7-15-1993)