All powers granted heretofore to cities are hereby preserved.
In case of any irreconcilable conflict between the provisions of this
Charter and any superior law, the powers of the City and its officers
shall be as defined in such superior laws. In case any insufficiency
or omission may be supplied by reference to the general laws, such
provisions of the general laws are hereby adopted, and the City shall
have and exercise all of the powers that it could have acquired by
expressly adopting and incorporating into this Charter all of the
provisions of such superior and general laws; it being the intent
of this Charter that no lawful power of the City shall fall because
of any omission, insufficiency or invalidity of any portion or portions
of this Charter, the same shall not in any way affect the remainder
of the Charter, but shall be construed as if adopted with such portion
and/or portions so found invalid or impotent.