ACCUMULO-868 - added new property, which defaults to /tmp/accumulo-vfs-cache, for specifying the vfs cache directory
ACCUMULO-1061 - re-added the shutdown hook



git-svn-id: https://svn.apache.org/repos/asf/accumulo/trunk@1445447 13f79535-47bb-0310-9956-ffa450edef68