Before any bonds shall be issued, as herein provided, the same shall be ordered by a vote of the qualified electors of such county, city, or township. All bonds issued under the provisions of this act* shall be issued in the manner provided by the general bond law and such bonds may be issued without regard to any statutory limitations of bonded indebtedness and shall not be included in computing the total bonded indebtedness of any county, city or township issuing the same for the purposes of such statutory limitations of bonded indebtedness.