shut down a slice if too many packet In events

added the ability to shutdown a slice if there are too many packet in
events.  This also means removing all of that slices flows.
Merge branch '8220-stop-a-slice-when-over-packet-in-limit' into 1.0.2-dev
Merge pull request #8 from ajragusa/1.0.2-dev

ISSUE=8220 added the ability to shutoff a slice if it surpasses the packet in threshold