dotcloud/docker — pull request #3663 by SvenDowideit (2014-01-20 00:46:48+00:00)
Title: add pid test for possible zombies and update State 

so we can make sure that containers marked as ghosts at daemon start are actually still running

Also allow `docker stop/kill/restart` to remove zombies

Docker-DCO-1.1-Signed-off-by: Sven Dowideit (github: SvenDowideit)