[Release 0.9.2]

Added

• Added the field spec.pod.securityContext to EtcdCluster that allows setting a specific PodSecurityContext for the etcd pods. #1949

Changed

• Update Go version to 1.10
• Build gcr.io/coreos-k8s-scale-testing/etcd-operator-builder:0.4.1-2 container with Go 1.10 and dep 0.4.1
• etcd pod containers no longer run with a non-root security context by default. This setting can be configured per cluster via the PodPolicy.