Incorrectly reports digest time

[SomeKittens]

With deep watches, the watch length given for the deep watcher is incorrect. In the example below, note the last cycle time vs the time given for arr.

Bin: http://jsbin.com/fuqotawoki/edit?html,js

[gary-b]

Should have a PR for this shortly. WIP: gary-b@00156f2

[SomeKittens]

Awesome detective work. Will review when I'm not zonked out tired.