HBASE-9579 Sanity check visiblity and audience for server-side modules


git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.96@1525056 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9585 Update javadoc builder in pom to exclude empty packages in user api javadoc


git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.96@1525058 13f79535-47bb-0310-9956-ffa450edef68