#9 include more stats in cpu graph

[Sascha]

it'll be very interesting to also see the other
cpu-states that are found in /proc/stat; I'm especialle
interested in the i/o-wait:

"cpu0 42536 798 4841 14790880 14778 124 3117

The cpu output measures the number of jiffies (1/100th
of a second) that the system has been in user mode,
user mode with low priority (nice), system mode, idle
task, I/O wait, hardirq (IRQ), and softirq."
(taken from
http://www.redhat.com/docs/errata/RHEL-3-Manual/\)

Thanks, Sascha