APP-79: Update Zeppelin data analytics demo description due to migration to Cassandra 3.0
APP-79: Update Zeppelin data analytics demo description due to migration to Cassandra 3.0

APP-79: Update Zeppelin data analytics demo description due to migration to Cassandra 3.0
kaaproject/sample-apps,kaaproject/sample-apps,kaaproject/sample-apps,kaaproject/sample-apps,maxml/sample-apps,maxml/sample-apps,maxml/sample-apps,kaaproject/sample-apps,maxml/sample-apps,maxml/sample-apps,kaaproject/sample-apps,maxml/sample-apps,kaaproject/sample-apps,kaaproject/sample-apps