Merge branch 'master' into fix-reporting-masters-under-migration

.golangci.yml

.zappr.yaml

Makefile

README.md

delivery.yaml

docs/administrator.md

docs/developer.md

docs/index.md

docs/reference/cluster_manifest.md

docs/reference/operator_parameters.md

docs/user.md

manifests/complete-postgres-manifest.yaml

manifests/configmap.yaml

manifests/minimal-postgres-manifest.yaml

manifests/operator-service-account-rbac.yaml

manifests/postgres-operator.yaml

manifests/postgresql-operator-default-configuration.yaml

pkg/apis/acid.zalan.do/v1/operator_configuration_type.go

pkg/apis/acid.zalan.do/v1/postgresql_type.go

pkg/apis/acid.zalan.do/v1/util_test.go