kube-aws: Beta channel now supported by kube-aws
kube-aws: Beta channel now supported by kube-aws

Beta channel moved to `>962.0.0` on March 23, currently `991.2.0`.

chen-anders/coreos-kubernetes,chen-anders/coreos-kubernetes,danielfm/coreos-kubernetes,amarruedo/coreos-kubernetes,turbonomic/coreos-kubernetes,four43/coreos-kubernetes,amarruedo/coreos-kubernetes,joshix/coreos-kubernetes,IDKA/coreos-kubernetes,danielfm/coreos-kubernetes,ah45/coreos-kubernetes,bnea-engineering/coreos-kubernetes,IDKA/coreos-kubernetes,joshix/coreos-kubernetes,limres/coreos-kubernetes,turbonomic/coreos-kubernetes,amarruedo/coreos-kubernetes,four43/coreos-kubernetes,danielfm/coreos-kubernetes,four43/coreos-kubernetes,bnea-engineering/coreos-kubernetes,coreos/coreos-kubernetes,turbonomic/coreos-kubernetes,coreos/coreos-kubernetes,limres/coreos-kubernetes,chen-anders/coreos-kubernetes,IDKA/coreos-kubernetes,amarruedo/coreos-kubernetes,limres/coreos-kubernetes,ah45/coreos-kubernetes,bnea-engineering/coreos-kubernetes,ah45/coreos-kubernetes