All zoning ordinances or parts of zoning ordinances
inconsistent with the provisions of this chapter are hereby repealed.
It is expressly provided that the provisions of this chapter shall
not affect any act done, contract executed or liability incurred prior
to its effective date, or affect any suit or prosecution pending or
to be instituted to enforce any rights, rule, regulation or ordinance,
or part thereof, or to punish any violation which occurred under any
prior zoning ordinance or regulation. In the event any violation has
occurred under any prior zoning regulation or ordinance of Denver
Borough, prosecution may be initiated against the alleged offender
pursuant to the provisions of said prior zoning regulation or ordinance,
and the provisions and penalties provided in said prior zoning regulation
or ordinance shall remain effective as to said violation.