ACCUMULO-971 Fix broken javadocs

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1467108 13f79535-47bb-0310-9956-ffa450edef68
ACCUMULO-971 merge javadoc fixes to trunk

git-svn-id: https://svn.apache.org/repos/asf/accumulo/trunk@1467112 13f79535-47bb-0310-9956-ffa450edef68