* Jobs return an integer status instead of a string
* Status convention mimics unix process execution: 0=success, 1=generic error, 127="no such command"
* Stdout and Stderr support multiple thread-safe data receivers and ring buffer filtering
Upstream-commit: a4f8a2494b0fb755db52c68cf61ddc8ff52d2965
Component: engine
Each arg to docker run should be placed in a separate string.
Otherwise, when starting the command via exec.Cmd, the command is
interpreted as "echo test", which can't be found.
Upstream-commit: 30ea0bebce340dfc257b5b45835234cb921f3a48
Component: engine
