Upgrades, add new pattern for iptables cleaner

* add new pattern for iptables cleaner
  after containers stop, because after
  new port binding there are rules with
  new format
* save iptables rules after cleaning
* don't raise error if deletion of
  iptables rules failed, just skip it

Change-Id: I9077f9988ca75c2d498515a688828cfe99dbe1c2
Closes-bug: #1349287
Closes-bug: #1353503
Merge "Upgrades, add new pattern for iptables cleaner"