ACCUMULO-1248 made tablet location cache throw an exception if a tablet has multiple locations

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1465155 13f79535-47bb-0310-9956-ffa450edef68
ACCUMULO-1248 made tablet location cache throw an exception if a tablet has multiple locations

git-svn-id: https://svn.apache.org/repos/asf/accumulo/trunk@1465156 13f79535-47bb-0310-9956-ffa450edef68