zookeeper: Change image from quay.io to Docker Hub
zookeeper: Change image from quay.io to Docker Hub

stevenlin598/quilt,kklin/kelda,kklin/quilt,NetSys/quilt,akshayknarayan/quilt,akshayknarayan/quilt,ZhongtianWang/quilt,ejj/quilt-dev,stevenlin598/quilt,ZhongtianWang/quilt,LuiseV/quilt,mmussomele/quilt,secant/quilt,mmussomele/quilt,ejj/quilt-dev,stevenlin598/quilt,kklin/quilt,ejj/quilt-dev,ZhongtianWang/quilt,tejasmanohar/quilt,quilt/quilt,LuiseV/quilt,kklin/quilt,mmussomele/quilt,LuiseV/quilt,mmussomele/quilt,akshayknarayan/quilt,kklin/kelda,kayousterhout/quilt,tejasmanohar/quilt,PenguinToast/quilt,NetSys/quilt,tejasmanohar/quilt,ZhongtianWang/quilt,kklin/kelda,kelda/kelda,secant/quilt,kelda/kelda,kayousterhout/quilt,NetSys/quilt,stevenlin598/quilt,kayousterhout/quilt,LuiseV/quilt,akshayknarayan/quilt,quilt/quilt,secant/quilt,stevenlin598/quilt,mmussomele/quilt,ejj/quilt-dev,quilt/quilt,kklin/kelda,PenguinToast/quilt,kelda/kelda,kayousterhout/quilt,LuiseV/quilt,stevenlin598/quilt,kelda/kelda,mmussomele/quilt,PenguinToast/quilt,NetSys/quilt,secant/quilt,NetSys/quilt,quilt/quilt,PenguinToast/quilt,tejasmanohar/quilt,PenguinToast/quilt,kklin/quilt,secant/quilt