Neither this chapter nor anything contained shall be construed as a restriction or limitation upon any powers which a city might otherwise have under any laws of this State, but shall be construed as cumulative. The authorization herein granted may be carried out by any governing body acting at any regular or special meeting, and without publication of the proceedings, by resolution to become effective upon its adoption at the meeting at which it is presented, notwithstanding any restriction, limitation or other procedure imposed upon the governing board by any other statute.