ACCUMULO-581 added last command (?)

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1461111 13f79535-47bb-0310-9956-ffa450edef68
ACCUMULO-581 added last command (?)

git-svn-id: https://svn.apache.org/repos/asf/accumulo/trunk@1461112 13f79535-47bb-0310-9956-ffa450edef68