Correct hadoop profile: hadoop2.7 -> hadoop-2.7 (#41)
Correct hadoop profile: hadoop2.7 -> hadoop-2.7 (#41)

See https://github.com/apache-spark-on-k8s/spark/blob/k8s-support-alternate-incremental/pom.xml#L2615
apache-spark-on-k8s/spark,publicRoman/spark,publicRoman/spark,apache-spark-on-k8s/spark,publicRoman/spark,apache-spark-on-k8s/spark,apache-spark-on-k8s/spark,publicRoman/spark,publicRoman/spark,publicRoman/spark,apache-spark-on-k8s/spark,publicRoman/spark,apache-spark-on-k8s/spark,apache-spark-on-k8s/spark