Add a new option (-i) that allows the insane deviation value to be set, and

Add a new option (-i) that allows the insane deviation value to be set, and
change the default to 0.5 seconds.  For example, -i 0.025 would set the test
to be 25ms.

Change the insane check... just map out a server deemed to be insane for 60
minutes, do not disconnect or reset it (which might lead to excessive packet
traffic).

Update the documentation.