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zoning, in their entirety and including the maps heretofore adopted and made a part of said ordinances, are hereby superseded and amended to read as set forth herein; provided however, that the ordinance codified herein, including the attached map, shall be deemed a continuation of previous ordinances and not a new enactment, insofar as the substance or revisions of previous ordinances is included in the ordinance codified herein, whether in the same or in different languages; and the ordinance codified herein shall be interpreted upon all questions of construction relating to tenure of officers and boards established by previous ordinances and 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. 99-06, 6-16-1999)