Cleanup + add Info to driver in order to have specific IsRunning()

Docker-DCO-1.1-Signed-off-by: Guillaume J. Charmes <guillaume.charmes@docker.com> (github: creack)
Merge remote-tracking branch 'creack/creack-extract-lxc-3' into extract-lxc

Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)