This chapter shall be liberally construed to effect the purposes hereof. The offer, sale, or issuance of bonds, notes, or other obligations by any authority shall not be subject to regulation under Chapter 5 of Title 10, the "Georgia Securities Act of 1973." No notice, proceeding, or publication except those required by this chapter shall be necessary to the performance of any act authorized by this chapter, nor shall any such act be subject to referendum.