Code enhancements

Jenkinsfile

@@ -116,6 +116,7 @@ pipeline {
     always {
       echo "CleaningUp work diretory"
       deleteDir()
+      sh "docker image rm -f `docker image ls -q ${DOCKER_REGISTRY}/iru/${DOCKER_IMAGE}:${repo}-${BUILD_NUMBER}`"
     }
     failure {
       mail charset: 'UTF-8',