A little more than two years after its official groundbreaking, the expansive redevelopment of the Rebekah Baines Johnson Center is making visible progress in East Austin. Soon, we'll be calling it the Hatchery -- and along with the construction of new market-rate residential, retail, and office space at the 17.8-acre site just southeast of downtown, its existing 250 units of low-income senior housing will be renovated and then . . .