Fix race condition in recreate containers

Container might have stopped between checking `is_running` and
calling `stop()`, which then threw an exception.

Signed-off-by: Ben Firshman <ben@firshman.co.uk>
Remove stop timeout in recreate containers

This doesn't seem like a good idea – 1 second isn't enough time
to stop gracefully.

Signed-off-by: Ben Firshman <ben@firshman.co.uk>
Merge pull request #310 from orchardup/fix-race-condition-in-recreate-containers

Fix race condition in recreate containers