Do not show evicted flows in flow listing
Do not show evicted flows in flow listing

By default 'flow -l' will no longer show evicted flows. Add a new option
'--show-evicted' to display evicted flows.

Change-Id: I58f9cbb1aeb7b6258534bcbf9910a91ce61d66e9
Closes-BUG: #1506233

codilime/contrail-vrouter,codilime/contrail-vrouter,codilime/contrail-vrouter,codilime/contrail-vrouter