The refunding bonds shall be authorized by resolution or resolutions of the governing body of the public body. Such resolution or resolutions may be adopted at a regular or special meeting, and at the same meeting at which they are introduced, by a majority of all the members of the governing body then in office. Such resolution or resolutions shall take effect immediately upon the adoption thereof. No other proceedings or procedure of any character whatever shall be required for the issuance of refunding bonds by the public body.