Hive does not restart on Ubuntu

This problem would also be fixed by BIGTOP-935, but it may be a little while before I get around to that larger-scale fix. Right now, if you run Hive on Ubuntu the daemons can't start back up after a reboot, but /var/run is tmpfs and the /var/run/hive directory we create at install time disappears. This is just a quick fix for the specific problem...