Make isReadinessApplicable static

Author: LarsSven

kubernetes-client-api/src/main/java/io/fabric8/kubernetes/client/readiness/Readiness.java

@@ -84,7 +84,7 @@ public boolean isReady(HasMetadata item) {
     }
   }
 
-  public boolean isReadinessApplicable(HasMetadata item) {
+  public static boolean isReadinessApplicable(HasMetadata item) {
     return (item instanceof Deployment ||
         item instanceof io.fabric8.kubernetes.api.model.extensions.Deployment ||
         item instanceof ReplicaSet ||

openshift-client-api/src/main/java/io/fabric8/openshift/client/readiness/OpenShiftReadiness.java

@@ -35,9 +35,8 @@ public static OpenShiftReadiness getInstance() {
     return OpenShiftReadinessHolder.INSTANCE;
   }
 
-  @Override
-  public boolean isReadinessApplicable(HasMetadata item) {
-    return super.isReadinessApplicable(item) ||
+  public static boolean isReadinessApplicable(HasMetadata item) {
+    return Readiness.isReadinessApplicable(item) ||
         item instanceof DeploymentConfig;
   }