Release 0.4.0-rc1: RC should be lowercase

Author: scholzj

examples/install/cluster-operator/04-deployment.yaml

@@ -12,7 +12,7 @@ spec:
       serviceAccountName: strimzi-cluster-operator
       containers:
         - name: strimzi-cluster-operator
-          image: strimzi/cluster-operator:0.4.0-RC1
+          image: strimzi/cluster-operator:0.4.0-rc1
           env:
             - name: STRIMZI_CONFIGMAP_LABELS
               value: "strimzi.io/kind=cluster"
@@ -25,15 +25,15 @@ spec:
             - name: STRIMZI_OPERATION_TIMEOUT_MS
               value: "300000"
             - name: STRIMZI_DEFAULT_ZOOKEEPER_IMAGE
-              value: strimzi/zookeeper:0.4.0-RC1
+              value: strimzi/zookeeper:0.4.0-rc1
             - name: STRIMZI_DEFAULT_KAFKA_IMAGE
-              value: strimzi/kafka:0.4.0-RC1
+              value: strimzi/kafka:0.4.0-rc1
             - name: STRIMZI_DEFAULT_KAFKA_CONNECT_IMAGE
-              value: strimzi/kafka-connect:0.4.0-RC1
+              value: strimzi/kafka-connect:0.4.0-rc1
             - name: STRIMZI_DEFAULT_KAFKA_CONNECT_S2I_IMAGE
-              value: strimzi/kafka-connect-s2i:0.4.0-RC1
+              value: strimzi/kafka-connect-s2i:0.4.0-rc1
             - name: STRIMZI_DEFAULT_TOPIC_OPERATOR_IMAGE
-              value: strimzi/topic-operator:0.4.0-RC1
+              value: strimzi/topic-operator:0.4.0-rc1
           livenessProbe:
             httpGet:
               path: /healthy

examples/install/topic-operator/04-deployment.yaml

@@ -12,7 +12,7 @@ spec:
       serviceAccountName: strimzi-topic-operator
       containers:
         - name: strimzi-topic-operator
-          image: strimzi/topic-operator:0.4.0-RC1
+          image: strimzi/topic-operator:0.4.0-rc1
           env:
             - name: STRIMZI_CONFIGMAP_LABELS
               value: "strimzi.io/kind=topic"