0.4
 - Add support for monitoring CPU time of a jail.
 - Now number of threads shows up.

0.3
 - Support multiple IPs per jail.

0.2
 - Add tracking of number of processes.
 - Don't include jails that have no processes (FreeBSD has these
   when a socket is hung in an open state).
 - Add tracking of the amount of disk space and files used by
   the jail.

0.1
 - Initial Release