added management command to purge container metadata for terminated containers
added management command to purge container metadata for terminated containers

rbramwell/shipyard,wujingke/shipyard,leominov/shipyard,rchicoli/shipyard,svdata/shipyard,daququ/shipyard,pugna0/shipyard,Dumbear/shipyard,LongTaiJun/DockerUI,chenrui2014/shipyard,svdata/shipyard,bkcsoft/shipyard,rockzeng/shipyard,rchicoli/shipyard,Lev09/shipyard,golang-lib/shipyard,zhoffice/shipyard,John-Lin/shipyard,bkcsoft/shipyard,iamjakob/shipyard,chenrui2014/shipyard,dockerclubgroup/shipyard,rchicoli/shipyard,ehazlett/shipyard,daququ/shipyard,ehazlett/shipyard,scapewang/shipyard,wujingke/shipyard,John-Lin/shipyard,rockzeng/shipyard,iamjakob/shipyard,Dumbear/shipyard,leroy-chen/shipyard,daququ/shipyard,jsyinwenjun/shipyard,leroy-chen/shipyard,pugna0/shipyard,wujingke/shipyard,chenrui2014/shipyard,beyondblog/shipyard,swege/shipyard,LongTaiJun/DockerUI,jsyinwenjun/shipyard,bkcsoft/shipyard,rockzeng/shipyard,vanloswang/shipyard,beyondblog/shipyard,Dumbear/shipyard,LongTaiJun/DockerUI,linecheng/shipyard,pugna0/shipyard,golang-lib/shipyard,leominov/shipyard,scapewang/shipyard,Lev09/shipyard,leominov/shipyard,OnePaaS/shipyard,golang-lib/shipyard,swege/shipyard,zhoffice/shipyard,vanloswang/shipyard,swege/shipyard,daququ/shipyard,bkcsoft/shipyard,linecheng/shipyard,tombee/shipyard,scapewang/shipyard,Lev09/shipyard,leroy-chen/shipyard,leominov/shipyard,RustJason/shipyard,svdata/shipyard,leroy-chen/shipyard,beyondblog/shipyard,RustJason/shipyard,linecheng/shipyard,wujingke/shipyard,golang-lib/shipyard,eedevops/shipyard,pugna0/shipyard,OnePaaS/shipyard,linecheng/shipyard,ehazlett/shipyard,zhiwei55/shipyard,Dumbear/shipyard,John-Lin/shipyard,zhiwei55/shipyard,zhoffice/shipyard,Lev09/shipyard,chenrui2014/shipyard,rbramwell/shipyard,tombee/shipyard,iamjakob/shipyard,LongTaiJun/DockerUI,jsyinwenjun/shipyard,zhiwei55/shipyard,rchicoli/shipyard,rbramwell/shipyard,dockerclubgroup/shipyard,tombee/shipyard,iamjakob/shipyard,tombee/shipyard,zhiwei55/shipyard,vanloswang/shipyard,dockerclubgroup/shipyard,beyondblog/shipyard,OnePaaS/shipyard,svdata/shipyard,scapewang/shipyard,eedevops/shipyard,ehazlett/shipyard,OnePaaS/shipyard,zhoffice/shipyard,eedevops/shipyard,vanloswang/shipyard,rbramwell/shipyard,RustJason/shipyard,RustJason/shipyard,eedevops/shipyard,jsyinwenjun/shipyard,John-Lin/shipyard,swege/shipyard,dockerclubgroup/shipyard,rockzeng/shipyard