Add refresh_iptables message to IptablesUpdater and call from cleanup.
Add refresh_iptables message to IptablesUpdater and call from cleanup.

Re-applies the cached copy of the expected iptables state to the kernel.

anortef/calico,kasisnu/calico,kasisnu/calico,beddari/calico,alexhersh/calico,Metaswitch/calico,matthewdupre/felix,Metaswitch/calico,ocadotechnology/calico,neiljerram/felix,TrimBiggs/calico,TrimBiggs/calico,matthewdupre/felix,anortef/calico,alexhersh/calico,neiljerram/felix,neiljerram/felix,beddari/calico,ocadotechnology/calico,neiljerram/felix