Shall the Brisbane's General Plan be amended to permit within the Baylands a range of 1800 to 2200 residences north of an extension of Main Street, and up to 7 million square feet of new commercial development, subject to these restrictions to protect Brisbane: land for housing must be certified safe for ground-level residential use; landfill must be permanently, safely capped; and development must abide by Brisbane's Sustainability Framework principles and produce net positive City revenues?