ACCUMULO-1074 made vfs cache dir in tmp differ per user

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1457066 13f79535-47bb-0310-9956-ffa450edef68
ACCUMULO-1074 made vfs cache dir in tmp differ per user

git-svn-id: https://svn.apache.org/repos/asf/accumulo/trunk@1457070 13f79535-47bb-0310-9956-ffa450edef68