Hadoop libraries in ${HADOOP_HOME}/share folder not included in CLASSPATH

Below line adds the libraries to classpath
https://github.com/apache/incubator-zeppelin/blob/master/bin/interpreter.sh#L90

But in the method addEachJarInDir looks libraries only at the first level
Ref: https://github.com/svignesh/incubator-zeppelin/blob/master/bin/common.sh#L65

Hadoop libraries are located at level 3

share/hadoop/common/hadoop-common-2.6.2-tests.jar
share/hadoop/common/hadoop-common-2.6.2.jar
share/hadoop/common/hadoop-nfs-2.6.2.jar
share/hadoop/common/lib/activation-1.1.jar
share/hadoop/common/lib/apacheds-i18n-2.0.0-M15.jar
share/hadoop/common/lib/apacheds-kerberos-codec-2.0.0-M15.jar
share/hadoop/common/lib/api-asn1-api-1.0.0-M20.jar